EP0344716B1 - Apparatus and method for stacking - Google Patents
Apparatus and method for stacking Download PDFInfo
- Publication number
- EP0344716B1 EP0344716B1 EP89109741A EP89109741A EP0344716B1 EP 0344716 B1 EP0344716 B1 EP 0344716B1 EP 89109741 A EP89109741 A EP 89109741A EP 89109741 A EP89109741 A EP 89109741A EP 0344716 B1 EP0344716 B1 EP 0344716B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- finger
- conveyor
- path
- stack
- products
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H33/00—Forming counted batches in delivery pile or stream of articles
- B65H33/16—Forming counted batches in delivery pile or stream of articles by depositing articles in batches on moving supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/38—Delivering or advancing articles from machines; Advancing articles to or into piles by movable piling or advancing arms, frames, plates, or like members with which the articles are maintained in face contact
- B65H29/40—Members rotated about an axis perpendicular to direction of article movement, e.g. star-wheels formed by S-shaped members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/19—Specific article or web
- B65H2701/1924—Napkins or tissues, e.g. dressings, toweling, serviettes, kitchen paper and compresses
Definitions
- This invention relates to an apparatus and method for stacking and, more particularly, to relatively flexible products such as paper towels and the like.
- the towels for example, are formed continuously by slitting a wide web into five or six narrow strips of web and then longitudinally folding each strip by passing them over folding boards. These folded strips are then routed to travel combined into a ribbon of stacked strips. The ribbon is cut into towel lengths (about 10") and these substacks of towels are called clips. Apparatus showing this general arrangement can be seen in co-owned British Patent 2,028,774.
- Final, salable stacks are formed then by stacking a fixed number of clips to yield the package quantity of towels.
- the final stacking operation is frequently the speed limiting part of the process and requires complicated mechanical assemblies to run at production speeds.
- the object of this invention is to simplify the final stacking operation while maintaining or increasing the potential speed of the production line.
- a further object is to provide ease of stack count changes and flexibility for culling off-specification products.
- slotted wheel means is employed in conjunction with endless chain conveyors in the general arrangement seen in ourearlier, co-owned Patent 4,736,936.
- the endless conveyors are equipped with diving fingers -- with the fingers on one conveyor being spaced orbitally from the fingers of the other conveyor so as to develop alternate stacks.
- the numeral 10 designates the machine frame.
- the frame includes a pair of spaced apart side frames such as are clearly seen at the lower right hand portion of FIG. 2.
- the side frames are suitably connected to provide a rigid support for the various moving elements, the structure and function of which can be most readily understood by considering the general operation of the apparatus.
- Individual product clips 11 are carried by a belt conveyor 12 and inserted into individual slots in a slotted wheel 13 rotating in the direction of product travel but slowing the product velocity by a factor of from 1/3 to 1/5 of entrance velocity.
- Other means such as seen in Patent 4,736,936 may be used for advancing and introducing the product into the slotted wheel.
- the slotted wheel 13 carries the products 11 around until they impact on stripper fingers 14 which are fixed relative to the frame 10. By this means, the product is stripped out of the slotted wheel 13 and stacked in a continuous manner on top of each other.
- sets of count finger assemblies 16, 17 and 18, 19 are mounted on multiple parallel continuous chain conveyors 20, 21 respectively.
- the chains of conveyor 20 are the two outboard ones while the inboard chains constitute the chain conveyor 21.
- Each chain set 20, 21 with its associated count fingers 16, 17 and 18, 19 is independently driven.
- chain set 20 is driven at 22 (clearly seen in the upper central portion of FIG. 1) and idles at the lower position 23.
- set 21 is driven at 23 and idles at 22.
- the upper sprocket is sized and located and the count finger shaped such that in combination, they form the insertion path 24 (see the upper right hand portion of FIG. 1) for the top of the count finger (shown in dashed line and designated 16') to pass between adjacent product clips 11, thus separating the products into individual stacks 15, 15A, etc.
- chain 20 When separation is completed (fingers 16' fully inserted), chain 20 is decelerated to a slower speed for stack building at the specific product bulk.
- chain 21 with the operative count finger 18 supporting a now completed stack accelerates down to a position in alignment with stack removal means 25, drops off the stack 15 at the stack removal platform 26, decelerates and adjusts speed in preparation for insertion of count finger 19 between stacks. This process then repeats itself with subsequent insertion of finger assemblies 19, then 17, then 18 and back to 16.
- a conveyor paddle 27 provided as part of the means 25 removes that stack for packaging.
- Chain conveyor 20 includes endless chains 28, 29 (see the upper central portion of FIG. 2). These chains are entrained over upper driven sprockets 30, 31 which rotate about the axis 22 and are also entrained over lower idler sprockets 32, 33 which rotate about the axis 23. Additionally, these chains are entrained about tensioning sprockets 34 -- see the central right hand portion of FIG. 1.
- the chains 28, 29 are finger assemblies 16, 17 via bars as at 35 seen relative to the fingers 16 in the upper central portion of FIG. 1.
- the chains 28, 29 are driven about the axis 22 by means of a programmable servo motor 36 operating through a right angled gear reducer 37 (shown schematically) or, alternatively, a cam box in the position of reducer 37.
- the chain conveyor 21 is similiarly arranged and operated except that it is 180° out of phase to chain conveyor 20. This is because there are two chain conveyors employed.
- the chain conveyor 21 is driven about the axis 23 by a programmable servo motor or cam box 38 and right angle gear reducer 39 (see the lower portion of FIG. 1) -- and idled about the axis 22.
- FIG. 3 there are four stepped lines designated 16, 18, 17, 19 which represent the positions of the finger assemblies 16-19 through five cycles of stacked development. For ease of presentation, the curves correspond to a 30 count stack.
- FIG. 3 Focusing on line 16, the point 40 at the extreme upper left hand portion of FIG. 3 represents the start of the diving function illustrated at 16' in FIG. 1. This is also designated 40 in FIG. 4 which shows the speed of fingers 16 as a function of time. It will be appreciated that the finger assembly 16' when traveling around the axis 22 moves at relatively high speed for the diving function. Additional details on this can be seen in co-owned Patent 4,285,621.
- FIG. 4 there is a rapid deceleration at 41 which is illustrated by the segment 41 in FIG. 3.
- the next mode of operation for finger 16 is the stacking function at which time the finger 16 is lowered gradually as illustrated by the segment42 in FIG. 3. This occurs at a constant, lower speed also designated 42 in FIG. 4.
- the finger 16 After a stack is completed, the finger 16, rapidly accelerates as indicated by the segment 43 in FIGS. 3 and 4 -- which is approximated by the point 43 in FIG. 3. When reaching the higher speed indicated at 44 in FIG. 4, the finger 16 continues downward as indicated also at 44 in FIG. 3.
- the finger assembly 16 passes through the platform 26 which results in shifting the stack 15 from the finger assembly 16 to the platform 26 for removal by one of the conveyor paddles 27.
- the conveyor paddles 27 are part of the stack removal means 25 which is powered by motor means 45 seen at the extreme lower left hand portion of FIG. 2. Many variations in the stack removal can be utilized inasmuch as the stack is now complete and free of control of the chain conveyor.
- finger assemblies 15 and 19 have a velocity profile as seen in FIG. 5 which is shifted relative to the showing in FIG. 4.
- finger assembly 16 when the stack is completed, this assembly moves upwardly in the non-stacking portion of its orbit -- as illustrated in the left hand portion of FIG. 1. There it travels about the tensioning sprockets 34. During this time the otherfinger assemblies 19,17and 18 follow the same sequence in developing stacks of product. In other words, each cycle of stack production represents one-half the orbit of a given conveyor chains. And the second conveyor chain is 180° out of phase with the first conveyor chain. Also, it will be appreciated from FIG. 4 that while the finger assembly 16 is not operating on product, it still follows the same deceleration-acceleration sequence because its supporting chain is governed by the driven sprockets 30, 31 which at this time is driving the finger assembly 17 through the stacking mode.
- the slotted wheel 13 which is mounted on the frame 10 for rotation.
- the slotted wheel is effectively in the first path and receives product adjacent to the zenith of the second generally arcuate path of travel developed by the slotted wheel. From a consideration of the upper portion of FIG. 1, it will be seen that the slotted wheel rotates clockwise and conveys the product sequentially along a path from about 1 o'clock to about 5 o'clock.
- the outboard chains are entrained about sprockets 30 and 31 at their upper reach and these are driven in the illustration given by means of a servo motor 36 and right angled gear box 37.
- the lower reach of the chains making up the conveyor 20 is defined by sprockets 32 and 33 which are idler or free running sprockets.
- the chains making up the inboard conveyor 21 are driven at the bottom and idled at the top.
- the driving means 38, 39 is positioned in the lower right hand portion of FIG. 2.
- Each chain of each conveyor is equipped with at least one outwardly projecting finger.
- the chains of conveyor 20 are equipped with the fingers 16 and 17 seen in the right central portion of FIG. 1.
- Each finger is part of a supporting bar 35 (referring to the fingers 16) which is rigidly attached to its associated chain.
- the chains of conveyor 21 are also equipped with outwardly projecting fingers as at 18 and 19 and it will be seen from a consideration of FIG. 1 that these fingers are arranged in longitudinally interlaced relation to the fingers of the conveyor 20.
- An advantageous feature of the invention is the programming of movement and velocity of the fingers during a traverse around the obround third path.
- Each finger first serves as a diving finger -- see the dashed line showing designated 16' in the upper right hand portion of FIG. 1 -- for defining the end of a previous stack and the commencement of a developing stack. This is illustrated graphically at the point 40 in FIGS. 3 and 4 relative to the finger 16.
- the finger thereupon enters its accumulating mode which is designated 42 in FIGS. 3 and 4 and from those views it will be seen that the velocity is constant and the finger moves downward slowly until a complete stack is achieved.
- the graphs of FIGS. 3-5 are in terms of a 30 count stack so as not to have unduly long abscissae.
- the chain associated with the supporting finger in that mode is rapidly accelerated as can be appreciated from the portion 43 of the curve of FIG. 4.
- acceleration stops and a constant velocity of descent is provided in the conveying chains to provide the curve portion designated 44. It is during this constant speed descent that the stack encounters the platform 26 which is indicated in FIG. 3 as the stack drop point.
- the paddles 27 of the stack removal means 25 remove the stack from the platform 26 -and it will be seen that the succeeding finger assembly 18 provided on the other conveyor 21 is in its stack accumulating mode so there is no interference with the removal operation.
- the finger assembly 18 is inserted into the second and third paths substantially with the completion of the stack being supported by the finger 16, viz., at the point designated 43.
- a variety of products can be stacked through the practice of the invention.
- a diving velocity of the finger in the position 16'
- the stacking velocity is a function of the product thickness and the rate of product advance -- as by the conveyor belts 12.
- the lowering velocity is a function of the rate of building the next stack and the time of removal of the first stack.
Description
- This invention relates to an apparatus and method for stacking and, more particularly, to relatively flexible products such as paper towels and the like.
- In the production of converted paper products (and other products as well), it is frequently desirable to package the product in stacks. For example, C-folded paper towels are frequently sold in packs of 200 towels (stacked). This is a somewhat higher count than that utilized 25 years ago (see co-owned Patent 3,254,889) but the problems are the same. It is always a matter of developing square stacks of exact count at high speed.
- The towels, for example, are formed continuously by slitting a wide web into five or six narrow strips of web and then longitudinally folding each strip by passing them over folding boards. These folded strips are then routed to travel combined into a ribbon of stacked strips. The ribbon is cut into towel lengths (about 10") and these substacks of towels are called clips. Apparatus showing this general arrangement can be seen in co-owned British Patent 2,028,774.
- Final, salable stacks are formed then by stacking a fixed number of clips to yield the package quantity of towels. The final stacking operation is frequently the speed limiting part of the process and requires complicated mechanical assemblies to run at production speeds. The object of this invention is to simplify the final stacking operation while maintaining or increasing the potential speed of the production line. A further object is to provide ease of stack count changes and flexibility for culling off-specification products.
- In the illustrated embodiment of the invention, slotted wheel means is employed in conjunction with endless chain conveyors in the general arrangement seen in ourearlier, co-owned Patent 4,736,936. In the illustrated embodiment of the invention, the endless conveyors are equipped with diving fingers -- with the fingers on one conveyor being spaced orbitally from the fingers of the other conveyor so as to develop alternate stacks.
- The invention is described in conjunction with the illustrative embodiment in the accompanying drawing, in which --
- FIG. 1 is a fragmentary side elevational view of apparatus for practicing the invention;
- FIG. 2 is a front elevational view of the apparatus of FIG. 1;
- FIG. 3 is a graph relating the finger position to time, i.e., product count; and
- FIGS. 4 and 5 are graphs relating finger assembly velocity to product count.
- In the illustration given and with reference first to FIG. 1, the
numeral 10 designates the machine frame. In accordance with the usual practice in machines for converting paper product, the frame includes a pair of spaced apart side frames such as are clearly seen at the lower right hand portion of FIG. 2. The side frames are suitably connected to provide a rigid support for the various moving elements, the structure and function of which can be most readily understood by considering the general operation of the apparatus. - Individual product clips 11 are carried by a
belt conveyor 12 and inserted into individual slots in a slottedwheel 13 rotating in the direction of product travel but slowing the product velocity by a factor of from 1/3 to 1/5 of entrance velocity. Other means such as seen in Patent 4,736,936 may be used for advancing and introducing the product into the slotted wheel. - The
slotted wheel 13 carries the products 11 around until they impact onstripper fingers 14 which are fixed relative to theframe 10. By this means, the product is stripped out of theslotted wheel 13 and stacked in a continuous manner on top of each other. - To accomplish separation of the continuously formed substacks or clips 11 into a completed stack 15 (a partial stack is designated 15A in the upper right hand portion of FIG. 1), sets of
count finger assemblies continuous chain conveyors conveyor 20 are the two outboard ones while the inboard chains constitute thechain conveyor 21. - These chains are mounted on upper and lower sprockets and travel in a generally vertical manner. Each chain set 20, 21 with its associated
count fingers chain set 20 is driven at 22 (clearly seen in the upper central portion of FIG. 1) and idles at thelower position 23. On the other hand,set 21 is driven at 23 and idles at 22. - The upper sprocket is sized and located and the count finger shaped such that in combination, they form the insertion path 24 (see the upper right hand portion of FIG. 1) for the top of the count finger (shown in dashed line and designated 16') to pass between adjacent product clips 11, thus separating the products into
individual stacks 15, 15A, etc. - When separation is completed (fingers 16' fully inserted),
chain 20 is decelerated to a slower speed for stack building at the specific product bulk. On the other hand,chain 21 with theoperative count finger 18 supporting a now completed stack accelerates down to a position in alignment with stack removal means 25, drops off thestack 15 at thestack removal platform 26, decelerates and adjusts speed in preparation for insertion ofcount finger 19 between stacks. This process then repeats itself with subsequent insertion offinger assemblies 19, then 17, then 18 and back to 16. - As soon as each completed
stack 15 reaches theplatform 26, aconveyor paddle 27 provided as part of themeans 25 removes that stack for packaging. -
Chain conveyor 20 includesendless chains 28, 29 (see the upper central portion of FIG. 2). These chains are entrained over upper drivensprockets axis 22 and are also entrained overlower idler sprockets axis 23. Additionally, these chains are entrained about tensioningsprockets 34 -- see the central right hand portion of FIG. 1. - Mounted on the
chains finger assemblies fingers 16 in the upper central portion of FIG. 1. Thechains axis 22 by means of aprogrammable servo motor 36 operating through a right angled gear reducer 37 (shown schematically) or, alternatively, a cam box in the position ofreducer 37. - The
chain conveyor 21 is similiarly arranged and operated except that it is 180° out of phase to chainconveyor 20. This is because there are two chain conveyors employed. For ease of layout and construction, thechain conveyor 21 is driven about theaxis 23 by a programmable servo motor orcam box 38 and right angle gear reducer 39 (see the lower portion of FIG. 1) -- and idled about theaxis 22. - Referring to FIG. 3 there are four stepped lines designated 16, 18, 17, 19 which represent the positions of the finger assemblies 16-19 through five cycles of stacked development. For ease of presentation, the curves correspond to a 30 count stack.
- Focusing on
line 16, thepoint 40 at the extreme upper left hand portion of FIG. 3 represents the start of the diving function illustrated at 16' in FIG. 1. This is also designated 40 in FIG. 4 which shows the speed offingers 16 as a function of time. It will be appreciated that the finger assembly 16' when traveling around theaxis 22 moves at relatively high speed for the diving function. Additional details on this can be seen in co-owned Patent 4,285,621. - Still referring to FIG. 4, there is a rapid deceleration at 41 which is illustrated by the
segment 41 in FIG. 3. The next mode of operation forfinger 16 is the stacking function at which time thefinger 16 is lowered gradually as illustrated by the segment42 in FIG. 3. This occurs at a constant, lower speed also designated 42 in FIG. 4. - After a stack is completed, the
finger 16, rapidly accelerates as indicated by thesegment 43 in FIGS. 3 and 4 -- which is approximated by thepoint 43 in FIG. 3. When reaching the higher speed indicated at 44 in FIG. 4, thefinger 16 continues downward as indicated also at 44 in FIG. 3. - During this downward movement, the
finger assembly 16 passes through theplatform 26 which results in shifting thestack 15 from thefinger assembly 16 to theplatform 26 for removal by one of theconveyor paddles 27. Theconveyor paddles 27 are part of the stack removal means 25 which is powered by motor means 45 seen at the extreme lower left hand portion of FIG. 2. Many variations in the stack removal can be utilized inasmuch as the stack is now complete and free of control of the chain conveyor. - It will be appreciated that the velocity profile of
finger assembly 17 -- as a function of time or product count is identical to thatoffinger assembly 16. On the other hand,finger assemblies - Returning to a consideration of
finger assembly 16, when the stack is completed, this assembly moves upwardly in the non-stacking portion of its orbit -- as illustrated in the left hand portion of FIG. 1. There it travels about thetensioning sprockets 34. During this time theotherfinger assemblies 19,17and 18 follow the same sequence in developing stacks of product. In other words, each cycle of stack production represents one-half the orbit of a given conveyor chains. And the second conveyor chain is 180° out of phase with the first conveyor chain. Also, it will be appreciated from FIG. 4 that while thefinger assembly 16 is not operating on product, it still follows the same deceleration-acceleration sequence because its supporting chain is governed by the drivensprockets finger assembly 17 through the stacking mode. - In the practice of the invention utilizing the embodiment of the apparatus illustrated in the drawing, spaced apart products 11 are advanced along a first path defined by a
belt conveyor 12. Although the description given hereinbefore is directed to C-fold towel production, it is possible to utilize the inventive apparatus and method for a variety of products. With changes for example in the slotted wheel and chain geometrys combined with timing changes for the programmable servo drive (or cam drive) many other products can be stacked utilizing the invention. - As the products 11 are advanced, they encounter sequentially a slotted
wheel 13 which is mounted on theframe 10 for rotation. Thus, the slotted wheel is effectively in the first path and receives product adjacent to the zenith of the second generally arcuate path of travel developed by the slotted wheel. From a consideration of the upper portion of FIG. 1, it will be seen that the slotted wheel rotates clockwise and conveys the product sequentially along a path from about 1 o'clock to about 5 o'clock. - At the 5 o'clock position which is adjacent the nadir of the arcuate second path, the products sequentially
encounter strippers 14 which remove the product sequentially for delivery into a third path defined by the vertical downward run of a pair ofchain conveyors - The arrangement of the chain conveyors relative to each other can be appreciated best from the right hand portion of FIG. 2 where the numeral 20 refers to the two outboard chains while the numeral 21 refers to the two inboard chains.
- Still referring to FIG. 2, it will be seen that the outboard chains are entrained about
sprockets servo motor 36 and rightangled gear box 37. The lower reach of the chains making up theconveyor 20 is defined bysprockets inboard conveyor 21 are driven at the bottom and idled at the top. It can be appreciated that the driving means 38, 39 is positioned in the lower right hand portion of FIG. 2. - Each chain of each conveyor is equipped with at least one outwardly projecting finger. In the illustrated embodiment the chains of
conveyor 20 are equipped with thefingers - The chains of
conveyor 21 are also equipped with outwardly projecting fingers as at 18 and 19 and it will be seen from a consideration of FIG. 1 that these fingers are arranged in longitudinally interlaced relation to the fingers of theconveyor 20. - While one conveyor is accumulating product of a stack, the other conveyor is rapidly moving a previously completed stack out of the way of the developing stack for deposit on a
platform 26. This is positioned adjacent the nadir of the generally obround third path. Theplatform 26 is slotted so that the four pairs of fingers can pass therethrough incident to return to stack defining position. From this, it will be seen that rapid stack buildup and removal is achieved by a pair of conveyors both having the same chain path. In effect, the fingers of one conveyor perform the diving, supporting and positioning for removal functions while the fingers of the other chain perform the same sequence of functions but are 180° out of phase. - An advantageous feature of the invention is the programming of movement and velocity of the fingers during a traverse around the obround third path. Each finger first serves as a diving finger -- see the dashed line showing designated 16' in the upper right hand portion of FIG. 1 -- for defining the end of a previous stack and the commencement of a developing stack. This is illustrated graphically at the
point 40 in FIGS. 3 and 4 relative to thefinger 16. By virtue of the finger in the position 16' passing around the upper sprocket the diving is achieved very rapidly in comparison with the finger movement in the straight runs in the third path. Once thefinger 16 has reached the straight vertically downward run, it is decelerated rapidly as can be appreciated from theportions 41 in FIGS. 3 and 4. The finger thereupon enters its accumulating mode which is designated 42 in FIGS. 3 and 4 and from those views it will be seen that the velocity is constant and the finger moves downward slowly until a complete stack is achieved. For ease of presentation, the graphs of FIGS. 3-5 are in terms of a 30 count stack so as not to have unduly long abscissae. - Once the stack has been accumulated -- as represented by the
point 43 in FIG. 3, the chain associated with the supporting finger in that mode is rapidly accelerated as can be appreciated from theportion 43 of the curve of FIG. 4. There upon, acceleration stops and a constant velocity of descent is provided in the conveying chains to provide the curve portion designated 44. It is during this constant speed descent that the stack encounters theplatform 26 which is indicated in FIG. 3 as the stack drop point. Thereafter, thepaddles 27 of the stack removal means 25 remove the stack from the platform 26 -and it will be seen that the succeedingfinger assembly 18 provided on theother conveyor 21 is in its stack accumulating mode so there is no interference with the removal operation. - Also, it will be seen from a consideration of FIG. 3 that the
finger assembly 18 is inserted into the second and third paths substantially with the completion of the stack being supported by thefinger 16, viz., at the point designated 43. - So we have provided a pair of chain conveyors working through the same chain path but operating in tandem and at varying speeds determined according to a preset program so that when one conveyor is developing a stack, the other conveyor is rapidly removing a previous stack from the vicinity and ultimately from the stack developing path.
- As indicated previously, a variety of products can be stacked through the practice of the invention. For each product, it is advantageous to develop a diving velocity of the finger (in the position 16') which is a function of the wheel geometry and the finger geometry. We have also found that the stacking velocity is a function of the product thickness and the rate of product advance -- as by the
conveyor belts 12. Further, the lowering velocity is a function of the rate of building the next stack and the time of removal of the first stack. These variables are advantageously controlled by a programmable servo motor so as to achieve the maximum speed without the possibility of one stack interfering with another. - While in the foregoing specification, a detailed description of an embodiment of the invention has been set down for the purpose of illustration, many variations in the details hereingiven may be made by those skilled in the art without departing from the scope of the invention.
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201583 | 1980-10-28 | ||
US20158388A | 1988-06-02 | 1988-06-02 |
Publications (3)
Publication Number | Publication Date |
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EP0344716A2 EP0344716A2 (en) | 1989-12-06 |
EP0344716A3 EP0344716A3 (en) | 1990-03-07 |
EP0344716B1 true EP0344716B1 (en) | 1992-07-08 |
Family
ID=22746424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89109741A Expired - Lifetime EP0344716B1 (en) | 1988-06-02 | 1989-05-30 | Apparatus and method for stacking |
Country Status (8)
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EP (1) | EP0344716B1 (en) |
JP (1) | JPH0790971B2 (en) |
AU (1) | AU603953B2 (en) |
BR (1) | BR8902537A (en) |
CA (1) | CA1333180C (en) |
DE (1) | DE68902013T2 (en) |
ES (1) | ES2034500T3 (en) |
MX (1) | MX174086B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5040783A (en) * | 1990-09-10 | 1991-08-20 | The Procter & Gamble Company | Rotary stacker |
US5359929A (en) * | 1993-08-25 | 1994-11-01 | Rockwell International Corporation | Device for delivering signatures in a printing press |
DE19519707A1 (en) * | 1994-06-02 | 1995-12-07 | Buehler Optima Maschf | Stacking device for flat articles, esp. babies' nappies and sanitary towels, etc. |
FR2790251B1 (en) * | 2000-03-30 | 2003-09-26 | Realisations Electr Et Mecaniq | INSTALLATION FOR STACKING AND CONSTITUTING BATCHES WITH A DETERMINED NUMBER OF SUBSTANTIALLY FLAT OBJECTS |
US6957944B2 (en) | 2002-06-25 | 2005-10-25 | Cardinal Fg Company | Method and apparatus for stacking small sheets of glass |
DE10348233A1 (en) | 2003-10-09 | 2005-05-04 | Optima Filling & Packaging | Apparatus for forming stacks |
ITBO20060289A1 (en) * | 2006-04-14 | 2007-10-15 | Tech S R L S | STACKING DEVICE FOR KIDSKINS, NAPKINS AND THE LIKE. |
EP2138439B1 (en) * | 2008-05-23 | 2015-05-20 | Ferag AG | Device for stacking flat products, in particular printed products |
ITRM20130222A1 (en) * | 2013-04-12 | 2014-10-13 | Fausto Bruschi | APPARATUS FOR THE PACKAGING OF REPLACED FOLDING LAMINAR ELEMENTS |
Citations (3)
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---|---|---|---|---|
US3254889A (en) * | 1962-12-14 | 1966-06-07 | Paper Converting Machine Co | Stacking and handling apparatus |
GB2028774A (en) * | 1978-08-21 | 1980-03-12 | Paper Converting Machine Co | Method and apparatus for producing stacks of folded web material |
US4285621A (en) * | 1979-11-14 | 1981-08-25 | Paper Converting Machine Company | Apparatus for stacking product |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH599025A5 (en) * | 1976-04-23 | 1978-05-12 | Grapha Holding Ag | |
JPS5943762A (en) * | 1982-09-03 | 1984-03-10 | Toshiba Corp | Sheet recovery device |
JPS6087161A (en) * | 1983-10-20 | 1985-05-16 | Toshiba Corp | Sheets stacking device |
JPS61162422A (en) * | 1985-01-08 | 1986-07-23 | エフ・エム・シー・コーポレーシヨン | Bag deposit treater |
US4736936A (en) * | 1987-01-16 | 1988-04-12 | Paper Converting Machine Company | Hanky delivery system |
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1989
- 1989-05-29 CA CA 601054 patent/CA1333180C/en not_active Expired - Fee Related
- 1989-05-30 DE DE1989602013 patent/DE68902013T2/en not_active Expired - Fee Related
- 1989-05-30 AU AU35852/89A patent/AU603953B2/en not_active Ceased
- 1989-05-30 EP EP89109741A patent/EP0344716B1/en not_active Expired - Lifetime
- 1989-05-30 ES ES89109741T patent/ES2034500T3/en not_active Expired - Lifetime
- 1989-06-01 MX MX1629389A patent/MX174086B/en unknown
- 1989-06-01 JP JP1137579A patent/JPH0790971B2/en not_active Expired - Lifetime
- 1989-06-02 BR BR8902537A patent/BR8902537A/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3254889A (en) * | 1962-12-14 | 1966-06-07 | Paper Converting Machine Co | Stacking and handling apparatus |
GB2028774A (en) * | 1978-08-21 | 1980-03-12 | Paper Converting Machine Co | Method and apparatus for producing stacks of folded web material |
US4285621A (en) * | 1979-11-14 | 1981-08-25 | Paper Converting Machine Company | Apparatus for stacking product |
Also Published As
Publication number | Publication date |
---|---|
AU603953B2 (en) | 1990-11-29 |
CA1333180C (en) | 1994-11-22 |
EP0344716A2 (en) | 1989-12-06 |
JPH0228468A (en) | 1990-01-30 |
DE68902013D1 (en) | 1992-08-13 |
ES2034500T3 (en) | 1993-04-01 |
MX174086B (en) | 1994-04-20 |
AU3585289A (en) | 1989-12-07 |
BR8902537A (en) | 1990-01-23 |
JPH0790971B2 (en) | 1995-10-04 |
DE68902013T2 (en) | 1993-01-14 |
EP0344716A3 (en) | 1990-03-07 |
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