EP1582653B1 - Device for introducing a strip into a groove - Google Patents

Abstract

A conveying device (1) has a number of spaced-apart driver tabs (2). A stationary magazine is arranged adjacent to the conveying device for storing the tongue strips. A pin (12) is connected to each driver tab, extending laterally in the direction of the magazine. The pin is pivotable about an axis (A) at right angles to the conveying direction (T), and is linearly displaceable along or parallel to the axis.

Description

The invention relates to a device for introducing a spring of a panel, in particular a bottom panel forming strip in a provided on a side edge of the panel for receiving the strip groove.

From DE 100 34 409 A1 building boards with a core of wood-based material are known, which are provided at least two opposite side edges with extending over their full longitudinal and / or transverse side grooves. The first groove and the opposite second groove of the panel are mirror-symmetrical. The connecting element is barbed. The connecting element is factory set in one of the grooves. It then forms the spring of the panel. To connect two panels, the spring of one panel is inserted into the groove of the other panel. By the barbs on the connecting element, the plates are then locked to each other transversely in the connecting direction. Basically, such plates are known as click-panels. So floor panels can be installed floating without glue.

European patent application EP-A-1 559 523, which forms part of the state of the art according to Art 54 (3) EPC, discloses a method of inserting the strip into the groove of the plate. Here, the plate and the strip are transported at the same speed to each other in parallel along a transport path in a transport direction T. During transport, the strip runs laterally against a stationary device which steadily narrows the transport path in the transport direction T. By means of the device, the locking element is increasingly increasingly transversely displaced transversely to the transport direction T, until it is pressed with its beginning in relation to the transport direction T front end steadily increasing in the groove of the plate. With this method, it is possible to use along a production line with high frequency strip, which can form the locking elements. The fact that the plate and the strip are transported at the same speed, no relative displacement of the two components to each other is possible, so that the strip is securely and reproducibly pressed into the predetermined position in the groove in the plate.

In CH 24 980 a machine for the production of slabs of grooved wooden blocks, which are held together by introduced into the grooves springs described. In order to fix the springs during driving and thus to protect against deflection and breakage, a guideway for the guidance of the springs during the collection is disclosed in the grooves.

When inserting the strip in the groove, it is necessary that the panels are aligned and guided exactly. Already when milling the groove in the side edge of the panel, a corresponding alignment and guidance must be ensured. It would be desirable that the panels could be provided with the strip immediately after milling the groove in the pass to avoid re-alignment. However, the driver, which simultaneously grasps the panel and the strip, would be in the way of the milling tools and would be destroyed if it came into contact with the milling tools. For this reason, the panels must be transferred to another facility after milling and re-aligned there.

Starting from this problem, a device is to be specified, which allows to use the strip on the same installation on which the groove is milled into the side edge of the panel, without the panels having to be realigned for this purpose.

• a) mindestens eine mit einer Mehrzahl zueinander beabstandeter Mitnehmer versehene, in einer Transportrichtung umlaufend angetriebene Transport-einrichtung;
• b) ein seitlich neben der Transporteinrichtung stationär angeordnetes, den einzubringenden Streifen aufnehmendes Magazin;
• c) einen mit jedem Mitnehmer verbundenen seitlich in Richtung des Magazins hinausragenden Stift, wobei
• d) der Stift
  • d1) um eine quer zur Transportrichtung verlaufenden Achse drehbar und
  • d2) entlang oder parallel zu der Achse linear verschiebbar

gelagert ist.To solve the problem, the generic device is characterized by

• a) at least one provided with a plurality of spaced-apart carrier, in a transport direction circumferentially driven transport device;
• b) a laterally adjacent to the transport device stationarily arranged, the strip to be introduced receiving magazine;
• c) one connected to each driver laterally projecting in the direction of the magazine pin, wherein
• d) the pen
  • d1) about an axis extending transversely to the transport direction and rotatable
  • d2) linearly displaceable along or parallel to the axis

is stored.

About the driver laterally projecting pin of the stored in the magazine strip can be detected at the same speed and without relative displacement to the plate. At the upstream milling station, however, the pin is rotated out of the area of action of the milling cutter and linearly displaced along or parallel to the axis of rotation. He then passes under and in relation to the transport direction behind the panel.

Preferably, the rotational movement and the linear movement take place simultaneously.

For this purpose, the pin is attached to a shaft mounted in a sleeve. The shaft has a radially projecting pin which engages a peripheral groove provided in the sleeve which is directed at an angle to the axis of rotation, and at the end opposite the pin the shaft is provided with a guide member which is laterally adjacent to the transport means stationary arranged guide rail cooperates.

By this configuration, the linear movement of the pin (the shaft) is initiated by the running in the guide rail guide member. By running in the circumferential groove of the sleeve pin the shaft is forced at the same time the rotational movement.

The guide member is preferably a circular disc, which can be produced inexpensively and is bolted to the shaft.

Figur 1 -

die schematische Draufsicht auf eine Fördereinrichtung, mit der das Verfahren ausführlich ist;

Figur 2 -

den Schnitt entlang der Linie II-II nach Figur 1;

Figur 3 -

die Ansicht auf die Eindrückeinrichtung gemäß Sichtpfeil III nach Figur 1;

Figur 4 -

den Schnitt entlang der Linie IV-IV nach Figur 3;

Figur 5 -

eine vergrößerte schematische Draufsicht gemäß Sichtpfeil V nach Figur 1 in Teildarstellung;

Figur 6 -

die Ansicht gemäß Sichtpfeil VI nach Figur 5.

With the aid of a drawing, an embodiment of the invention will be described in more detail below. It shows:

FIG. 1 -

the schematic plan view of a conveyor, with which the method is detailed;

FIG. 2 -

the section along the line II-II of Figure 1;

FIG. 3 -

the view of the indenting according to visual arrow III of Figure 1;

FIG. 4 -

the section along the line IV-IV of Figure 3;

FIG. 5 -

an enlarged schematic plan view according to visual arrow V of Figure 1 in partial view;

FIG. 6 -

the view according to visual arrow VI of Figure 5.

The transport device consists of the three mutually parallel to deflection rollers 8 circumferentially driven and formed of chain plates bands 1, 1 a, 1 b. In the transport direction T are on the bands 1, 1 a, 1 b driver 2, 2a, 2b arranged regularly spaced. The drivers 2, 2a, 2b protrude beyond the belts 1, 1a, 1b in the vertical direction and are aligned parallel to one another in the transverse direction Q. The driver 2, 2a, 2b engage the rear longitudinal edge of a panel 6 and take the panel 6 so in the transport direction T with. For safe guidance and fixation, the panels 6 are loaded from above with a force. For this purpose, a further conveyor belt, which is similar to the conveyor belt 1 but without driver 2 is formed, be arranged above the transport device, which acts with its lower run on the top of the panels 6.

Laterally to the conveyor belt 1, a magazine 7 consisting of a rail 3, which has a groove 9 opening in the direction of the belt 1, is arranged in the transport path. When the panel 6 is guided past the rail 3, the groove 5 milled in the side edge of the panel 6 and the groove 9 lie opposite the rail 3. In the groove 9, the strip 4 is inserted. The groove bottom 9a of the groove 9 extends in the transport direction T. obliquely, so that the distance between the groove bottom 9a and the side edge of the panel 6 with respect to the transport direction T decreases steadily. The drivers 2 of the band 1 are provided with laterally protruding in the direction of the rail 3 pins 12 which dive into the groove 9 of the rail 3 and thereby grab the strip 4 and transport at the same speed as the panel 6 in the transport direction T. By the oblique groove bottom 9a of the strip 4 is made in the groove 9 over the transport path and inserted with its front end 4 'starting in the groove 5 of the panel 6 and pressed in the transport direction T steadily in the groove 5 until it completely at the end is inserted into the groove 5.

The panel 6 is provided at its opposite edges with identically shaped grooves 5, 5 '. The production of the panels 6 is thereby simplified, whereby the tool costs are reduced. The strip 4 can be supplied as a strip material from the roll and cut to length before the magazine 7 and then inserted into the groove 9 in the appropriate length. For this purpose, an opening not shown in detail in the upper lip 3 'of the groove 9 may be provided.

The strip 4 preferably carries locking elements which cooperate with in the groove 5 'formed for this purpose corresponding undercuts. About the locking elements and undercuts two interconnected panels 6 can be locked to each other (click panel).

At the driver 2 of the band 1, a sleeve 10 is fixed, in which a shaft 11 is inserted. At its end pointing in the direction of the magazine 7, the shaft 11 is provided with a pin 12 which projects in the direction of transport T. The shaft 11 has a radially projecting pin 10 which is guided in an inserted in the sleeve 10 at an angle to the axis of rotation A circumferential slots 13. At the opposite end of the pin 12, the shaft 11 is provided with a screwed-on disc 15 which runs in a stationary adjacent the band 1 guide rail 16. In the position shown in Figure 5, the pin 12 is pivoted adjacent to the panel 6 and is ready to engage in the groove 9 in the magazine 7 and to detect the strip.

The guide rail 16 extends in the transport direction T in the bow. When the disk 15 arrives in the area further away from the belt 1 in the transverse direction Q, the shaft 11 becomes pulled in the sleeve 10 in the transverse direction Q. By guided in the circumferential groove 13 pin 4 in addition to the linear movement, the shaft is set in a rotational movement about the axis A, whereby the pin 12 pivots upwards. Has the pin 14 reaches its end position in the circumferential groove 13, the pin 12 is pivoted by 90 ° upwards and no longer protrudes laterally beyond the panel 6. The guide rail 16 is brought so close to the tape only in the area of the magazine 7, that the pin 12 is pivoted downward and protrudes laterally over the panel. In the area in front of the magazine 7 and behind the pin 12 is pivoted up and does not protrude beyond the panel 6. In this position, the groove 5 can be previously milled into the panel 6, without the pin 12 can come into contact with the milling tools. Behind the magazine 7, the pin 12 is brought out of its lateral position to the panel to reduce the risk of accidents for the operator.

LIST OF REFERENCE NUMBERS

1

tape

1a

tape

1 b

tape

2

takeaway

2a

takeaway

2 B

takeaway

2 '

head Start

3

rail

4

strip

4 '

front end

5

groove

5 '

groove

6

paneling

7

magazine

8th

guide wheel

9

groove

9a

groove base

9b

slot opening

10

shell

11

wave

12

pen

13

circumferential groove

14

spigot

15

Guide member / disc

16

guide rail

A

axis of rotation

Q

transversely

T

transport direction

Claims (4)

1. Apparatus for introducing a strip (4) forming the tongue of a panel (6), in particular of a floor panel, into a groove (5) provided on a side edge of the panel (6) for the reception of the strip (4), comprising

   a) at least one conveyor device (1), which is provided with a plurality of mutually spaced drivers (2) and is driven in a direction of conveyance (T),

   b) a magazine (7), which is disposed immovably alongside the conveyor device (1) and contains the strip (4) to be introduced,

   c) a pin (12), which is connected to each driver (2) and juts laterally in the direction of the magazine (7), wherein

   d) the pin (12)

   d1) is pivotable about an axis (A) running transversely to the direction of conveyance (T), and

   d2) is mounted such that it is linearly displaceable along or parallel to the axis (A).
2. Apparatus according to Claim 1, characterized in that the pivotal motion and the linear motion are made simultaneously.
3. Apparatus according to Claim 2, characterized in that the pin (12) is attached to a shaft (11) mounted in a sleeve (10), in that the shaft (11) has a radially projecting journal (14) and, at the end opposite to the pin (12), a guide member (15), which cooperates with a guide rail (16) disposed immovably alongside the conveyor device (1), and in that the journal (14) engages in a peripheral groove (13) which is provided in the sleeve (10) and is directed at an angle to the axis (A).
4. Apparatus according to Claim 3, characterized in that the guide member (15) is a circular disc.

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