WO2014101334A1

WO2014101334A1 - Tire x-ray inspection machine and centering spinning method thereof

Info

Publication number: WO2014101334A1
Application number: PCT/CN2013/071288
Authority: WO
Inventors: 袁仲雪; 任立国; 侯朋; 李华光
Original assignee: Yuan Zhongxue
Priority date: 2012-12-24
Filing date: 2013-02-01
Publication date: 2014-07-03
Also published as: CN103901053A

Abstract

A tire X-ray inspection machine and a centering spinning method thereof. The tire is expanded and centered outwards from the bead portion of the tire by using a drive roller (7, 8) and the tire is driven to spin, so as to improve stability of the tire during high-speed spin, thereby improving imaging quality in X-ray inspection and enhancing X-ray inspection quality and efficiency. The tire X-ray inspection machine comprises a lead chamber (1) for inspecting the tire in an enclosed manner, a delivery device (2), a roller platform (3), an X-ray emission device (4), an X-ray receiving device (5), and a centering spinning device (6). The centering spinning device (6) has at least one driving roller (7), for driving the tire to spin in a inspection process by pressing the bead of the tire; the driving roller (7) is provided on a first slide rack (9), and a first drive device for driving the driving roller (7) to axially spin is mounted on the first slide rack (9). The centering spinning device (6) also has at least one driven roller (8), for axially spinning with the tire in the inspection process by pressing the bead of the tire. The first slide rack (9) and a second slide rack (10) are separately connected to a guide rail (11) in a slide manner through the same transmission mechanism, and the first slide rack (9) or a second slide rack (10) is connected to a second drive device at one side.

Description

Tire x-ray inspection machine and its centering rotation method

[0001] The present invention relates to an improvement of a centering rotating device and a method thereof applied to a tire X-ray inspection machine, and belongs to the field of rubber machinery and industrial automation.

Background technique

[0002] In order to improve the production quality and safe use cycle of motor vehicle tires, a series of online inspection items are required in the manufacturing process. If X-rays are used for flaw detection of the inner layer of the tire, the signal generated by the radiation through the tire is used to image on the receiving device, thereby verifying whether there are defects such as faults, bubbles, and wire breakage inside the tire, and according to the test results. Tires are identified and graded.

[0003] In the conventional X-ray inspection machine, the detected tire is usually placed on the conveying line vertically or horizontally, and the X-ray tube is driven into the sub-port to perform ray taking. During the start and the start of the test, the tread portion of the detected tire is usually clamped from the outside by two or more sets of arms, so that the tire coincides with the axis of the centering device including the above-mentioned arm member, that is, Perform the centering operation first. Then, under the axial rotation of a set of arms, the tire rotates around its axis to match the image of the X-ray tube inside the sub-port.

[0004] As described in the above prior art features, the following disadvantages and disadvantages exist from the structure and manner of tread clamping centering and rotation driving:

1. The tire tread has a certain depth pattern. When the arm is clamped and driven to rotate, it is susceptible to surface irregularity. The tire is easy to jump and unstable when rotating at high speed, thus affecting the X-ray inspection imaging. Image quality, which leads to a decline in inspection quality;

2. Clamping and rotating the tire from the outside of the tread. The main areas of the X-ray inspection, such as the tread and the sidewall, will correspond.

The formation of a certain deformation of the ground will also directly affect the image quality of the inspection image.

In view of this, the present patent application is filed.

Summary of the invention

[0006] The tire X-ray inspection machine and the centering rotation method thereof have the purpose of solving the above problems in the prior art and adopting a horizontal rotating tire, and expanding the center of the driving roller from the sub-port. And the method of driving the rotation to improve the stability of the tire at high speed rotation, thereby improving the quality of X-ray inspection imaging and improving the quality and efficiency of X-ray inspection.

Another object of the invention is to achieve a significant reduction in the deformation of the inspected area of the tire by centering and rotating the structure and manner of rotation from the inside to the outside. [0008] In order to achieve the above object, the tire X-ray inspection machine mainly includes:

a lead room for sealing the tire, and the following devices installed in the lead room,

a conveying device for conveying the tire into the lead room;

Roller platform for providing unpowered rotatory support to the tire during testing;

X-ray emitting device for emitting X-rays to the inside of the tire nipple for imaging;

An X-ray receiving device for receiving an X-ray machine penetrating the tire for imaging;

The difference from the prior art is that it also includes a centering rotating device having the following structure,

At least one driving roller, pressing the sub-port of the tire to drive the tire to rotate during the detecting; the driving roller is mounted on the first sliding frame, and the first driving device driving the driving roller to rotate axially is mounted on the first sliding frame;

At least one driven roller, which is rotated in the axial direction of the tire by pressing the sub-port of the tire during the detecting; the driven roller is assembled to the second carriage;

The first sliding frame and the second sliding frame are respectively slidably connected to the guide rail through the same transmission mechanism;

A second driving device for driving the reciprocating sliding along the guide rail is connected to one side of the first carriage or the second carriage.

[0009] As in the above basic scheme, the present patent application adopts a centering structure and manner of projecting from the sub-port into the driving shaft and the driven roller and then expanding outward. When the driven tire is driven to rotate, the driving shaft and the driven roller respectively press the sub-ports of the tire to realize a high-speed stable rotation mode.

[0010] Compared to the prior art of tread positioning and rotational driving, since there is no pattern at the sub-port of the tire, the stability in the radial direction and the axial direction of the tire can be maintained during high-speed rotation without obvious defects. Movement and swing, thus helping to improve the quality of X-ray inspection imaging, and accordingly improve the quality of X-ray inspection.

[0011] In addition, the driving shaft and the driven roller respectively press the sub-port of the tire, and the material of the sub-port and the material of the tread and the sidewall portion do not directly transmit the force, so the rotation driving is not Deformation of the tread, sidewall, etc., that is, does not affect the quality of X-ray inspection imaging. This is a significant improvement and improvement over the prior art technique of positioning and rotationally driving from outside the tread.

[0012] In order to further ensure the accuracy and synchronization consistency of the positioning from the tire sub-port, the above-mentioned transmission mechanism may adopt a preferred solution that the transmission mechanism includes the first one mounted on the first carriage, respectively. a rack and a second rack mounted to the second carriage, the first rack and the second rack respectively meshing with the same gear.

[0013] The first driving device is more refined and preferred. The first driving device includes a motor mounted on the first sliding frame, and an active rotating gear is disposed on the output shaft of the motor, and the active rotating gear and the sleeve are disposed. The driven gears on the drive roller mesh.

[0014] In order to improve the driving friction of the detected tire at a high speed, it has sufficient friction and holding action, and can be set on the driving roller. A embossing or a concave pattern for improving the friction with the surface of the tire nipple is provided.

[0015]

Based on the above-described inventive design concept and the structural improvement of the tire X-ray inspection machine, the present invention can also realize the following centering rotation method:

Laying the sidewall portion of one side of the tire on the roller platform;

Before the X-ray is emitted, the tire is coincident with the axis of the centering rotating device;

The driving roller and the driven roller respectively press the sub-port portion of the tire, and the driving roller rotates in the axial direction to drive the tire to rotate in the axial direction, and the driven roller assists the guiding.

[0016] wherein, the detailed implementation steps in the driving transmission and the rotation assist guiding are:

The first carriage and the second carriage are slidably coupled to the guide rail by the same transmission mechanism;

While the driving roller reciprocates in the radial direction of the tire, the driven roller maintains the same direction and displacement amount, and the driving roller and the driven roller simultaneously press or release the sub-port portion of the tire.

[0017] In addition, a embossing or a concave pattern may be provided on the driving roller to improve the friction with the surface of the tire sub-port.

[0018]

As described above, the tire X-ray inspection machine of the present invention and its centering rotation method have the following advantages:

1. The method of expanding the centering tire from the sub-port and driving the rotation can effectively improve the stability of the tire when rotating at a high speed, thereby improving the quality of the X-ray inspection image.

[0019] 2. Based on the inspection means from the inside to the outside and the rotation drive at the sub-port, the deformation of the tested area (tread and sidewall) of the tire can be significantly reduced, thereby directly improving the quality of the X-ray inspection and effectiveness.

DRAWINGS

[0020] The present invention will be further described with reference to the accompanying drawings:

Figure 1 is a schematic structural view of the tire X-ray inspection machine;

Figure 2 is a top plan view of Figure 1;

Figure 3 is a schematic view of the centering rotating device;

Figure 4 is a side elevational view of Figure 3;

As shown in FIG. 1 to FIG. 4, the lead room 1, the conveying device 2, the roller platform 3, the X-ray emitting device 4, the X-ray receiving device 5, the centering rotating device 6, the driving roller 7, the driven roller 8, the first A carriage 9, a second carriage 10, a guide rail 11, a first rack 12, a second rack 13, a gear 14, a motor 15, a driving gear 16, a driven gear 17, a base 18, and a cylinder 19. detailed description

[0021] Embodiment 1, as shown in FIG. 1 to FIG. 4, the tire X-ray inspection machine includes:

a lead room 1 for sealing the tires, and the following devices installed in the lead room 1 a conveying device 2 for conveying the tire into the lead room 1;

Roller platform 3, for providing unpowered rotary support to the tire during the test;

X-ray emitting device 4, configured to emit X-rays to the inside of the tire sub-port for imaging;

An X-ray receiving device 5, configured to receive an X-ray machine penetrating the tire for imaging;

a centering rotating device 6 having two driving rollers 7 for pressing the sub-port of the tire during the detecting to drive the tire to rotate; and the driving roller 7 is provided with a convex pattern for increasing the friction with the surface of the tire sub-port;

Two driving rollers 7 are respectively mounted on the first carriage 9, and a first driving device for driving the driving roller 7 to rotate axially is mounted on the first carriage 9;

The first driving device comprises a motor 15 mounted on the first carriage 9, and an active rotating gear 16 is sleeved on the output shaft of the motor 15, and the driving gear 16 meshes with the driven gear 17 sleeved on the driving roller 7. ;

2 driven rollers 8, during the detection process by pressing the sub-port of the tire to accompany the axial rotation of the tire; 2 driven rollers 8 are all mounted to the second carriage 10;

The first carriage 9 passes through the first rack 12 and the second carriage 10 through the second rack 13 to respectively mesh and connect the same gear 14 disposed on the base 18, while the first carriage 9 and the second carriage 10 Separately connected to the guide rail 11 by respective sliders;

A cylinder 19 for driving the reciprocating sliding along the guide rail 11 is connected to one side of the first carriage 9; based on the use of the above-described tire X-ray inspection machine, a centering rotation method in the following X-ray inspection tire can be realized: The sidewall portion on one side of the tire is placed on the roller platform 3;

Before the X-ray is emitted, the first carriage 9 and the second carriage 10 are reciprocally slid along the guide rail 11 by the same transmission mechanism, while the driven roller 7 reciprocates in the tire radial direction, the driven roller 8 maintains the same direction. And the amount of displacement, the tire is coincident with the axis of the centering rotating device 6;

The driving roller 7 presses the sub-port portion of the tire in synchronization with the driven roller 8, and the driving roller 7 rotates in the axial direction to drive the tire to rotate in the axial direction, and the driven roller 8 assists the guiding;

A embossing or a concave pattern is provided on the driving roller 7 to increase the friction with the surface of the tire sub-port.

[0022]

The specific detection process is as follows:

Rolling the tire to the front end of the upper tire station, the tire slips onto the conveyor 2 and enters the lead room 1;

After being conveyed to drive the tire to the center position, the conveying device 2 is lowered to place the tire on the centripetal distributed, unpowered roller platform 3;

2 driving rollers 7 and 2 driven rollers 8 are relatively moved, so that the tire is centered and pressed at the supporting sub-port; According to the tire specifications, the initial position of the X-ray emitting device 4 is adjusted so that the X-ray tube enters the inside of the tire sub-port; the motor 15 drives the driving roller 7 to rotate, and the driving roller 7 is rolled with a raised pattern to drive the tire sub-port to make it High-speed rotation; the X-ray receiving device 5 moves to the tire tread and the two sidewall portions;

After the X-ray tube and detector are in place, the X-ray tube emits radiation, and the imaging system is reduced to an internal structural image of the tire by receiving X-rays transmitted through the tire;

When the tire is detected once, the X-ray tube stops the emission line, and the X-ray emitting device 4 and the X-ray receiving device 5 are respectively reset; the door of the lead room 1 is opened, and the conveying device 2 sends the tire to complete a detection cycle.

Claims

Claim

A tire X-ray inspection machine comprising a lead room for sealing a tire (1), and a device installed in the lead room (1),

Conveying device (2) for conveying the tire into the lead room (1);

Roller platform (3) for providing unpowered rotary support to the tire during the test;

X-ray emitting device (4) for emitting X-rays to the inside of the tire sub-port for imaging;

An X-ray receiving device (5) for receiving an X-ray machine penetrating the tire for imaging, characterized by: further comprising a centering rotating device (6) having the following structure,

At least one driving roller (7), pressing the sub-port of the tire to drive the tire to rotate during the detecting; the driving roller (7) is mounted on the first carriage (9), and the driving initiative is mounted on the first carriage (9) a first driving device for axially rotating the roller (7); at least one driven roller (8) for controlling the axial rotation of the tire by pressing the sub-port of the tire during the detection; the driven roller (8) is assembled for the second sliding Rack (10);

The first carriage (9) and the second carriage (10) are respectively slidably connected to the guide rail (11) through the same transmission mechanism;

A second driving means for driving it to reciprocate along the guide rail (11) is connected to one side of the first carriage (9) or the second carriage (10).

2.

A tire X-ray inspection machine according to claim 1, wherein: said transmission mechanism comprises: a first rack (12) mounted to the first carriage (9), and a second slide The second rack (13) of the frame (10), the first rack (12) and the second rack (13) are respectively meshed with the same gear (14).

3.

The tire X-ray inspection machine according to claim 1 or 2, wherein: the first driving device comprises a motor (15) mounted on the first carriage (9), and the motor (15) outputs The shaft is sleeved with an active rotating gear (16), and the active rotating gear (16) is meshed with a driven gear (17) that is sleeved on the driving roller (7).

4.

The tire X-ray inspection machine according to claim 3, characterized in that the driving roller (7) is provided with a embossing or a concave pattern for improving the friction with the surface of the tire sub-port.

5.

The centering rotation method of the tire X-ray inspection machine according to any one of claims 1 to 4, wherein the side portion of the tire side is placed flat on the roller platform (3), characterized in that:

Before the X-ray is emitted, the tire is coincident with the axis of the centering rotating device (6);

The driving roller (7) and the driven roller (8) respectively press the sub-port portion of the tire, the driving roller rotates in the axial direction to drive the tire to rotate in the axial direction, and the driven roller (8) assists the guiding.

6.

The centering rotation method according to claim 5, wherein: the first carriage (9) and the second carriage (10) are slidably coupled to the guide rail (11) by the same transmission mechanism;

While the driving roller (7) reciprocates in the radial direction of the tire, the driven roller (8) maintains the same direction and displacement amount, and the driving roller (7) presses or releases the sub-port of the tire in synchronization with the driven roller (8). Part. The centering rotation method according to claim 5 or 6, characterized in that a embossing pattern or a concave pattern is provided on the driving roller (7) to improve the friction with the surface of the tire sub-port.