A conveying device for painting tires

Abstract

The utility model discloses a kind of conveying devices for tire paint spraying, comprising: rack;Drive device, setting in rack;Conveying frame, it is connected in the conveying end of drive device, and can move back and forth and rotate around its vertical center line under the drive of drive device;Mounting assembly, it is connected in the top end of conveying frame, and mounting assembly includes multiple positioning portion around the circumferential arrangement of the center line of conveying frame, multiple positioning steps are arranged on positioning portion, in the direction of away from the center line of conveying frame, multiple positioning steps are sequentially arranged from below to above;Wherein, multiple positioning portions are formed by positioning step between installation position of mounting tire, and positioning portion can be moved and adjusted along the radial direction of the center line of conveying frame.The tire paint spraying conveying device of the utility model embodiment can be used to convey various specifications of tire.

Description

Technical Field

[0001] This utility model relates to the field of tire manufacturing technology, and in particular to a conveying device for tire painting. Background Technology

[0002] In the tire industry, wheel rims are typically made of cast iron. To prevent oxidation and rust in the air, both end faces and the inner surface are usually painted. With advancements in science and technology, tire production is becoming increasingly intelligent. In automated tire production lines, tire painting equipment typically consists of a conveyor system and an automatic painting device (including spray guns, robotic arms, etc.) positioned at a specific location along the conveyor's travel path (painting station). During the painting process, the conveyor system slowly transports the tire from back to front, rotating around its own axis as it moves forward. When the tire reaches the painting station, the automatic painting device begins painting; when the tire leaves the painting station, the automatic painting device stops, waiting for the next tire to enter. However, existing conveyor systems for tire painting still have some shortcomings, such as poor versatility; a single conveyor system can often only transport one or a very limited number of tire sizes. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a conveying device for tire painting, which can be used to convey tires of various sizes.

[0004] The tire painting conveying device according to an embodiment of the present utility model includes: frame; The drive unit is mounted on the frame; The conveyor frame is connected to the conveying end of the drive device and can move back and forth and rotate around its own vertical center line under the drive of the drive device. An installation assembly is attached to the top of the conveyor frame. The installation assembly includes multiple positioning parts arranged circumferentially around the center line of the conveyor frame. Each positioning part is provided with multiple positioning steps, which are arranged sequentially from bottom to top along a direction away from the center line of the conveyor frame. The positioning parts form mounting positions for mounting tires through the positioning steps, and the positioning parts can be adjusted radially along the center line of the conveyor frame.

[0005] The tire painting conveying device according to the embodiments of the present utility model has at least the following beneficial effects: By setting multiple circumferentially arranged positioning parts at the top of the conveyor frame, and setting multiple positioning steps on each positioning part, different sizes of tires can be installed through positioning steps of different heights, thus enabling this embodiment to be used to transport tires of various sizes; furthermore, by allowing the positioning parts to move and adjust radially along the center line of the conveyor frame, it can be adapted to even more sizes of tires, making it highly versatile.

[0006] According to some embodiments of the present invention, the positioning step has a first step surface and a second step surface. The first step surface is horizontally arranged, and the second step surface is located on the side of the first step surface away from the center line of the conveyor frame. Along the direction away from the center line of the conveyor frame, the second step surface is inclined upward.

[0007] According to some embodiments of the present invention, the positioning part is provided with a mounting hole, and the mounting assembly further includes: The mounting frame is connected to the top of the conveyor frame and located below the positioning part. The mounting frame is provided with a mounting groove corresponding to each positioning part, and the mounting groove extends radially along the center line of the conveyor frame. A connecting bolt passes through the mounting hole and the mounting groove, and is threaded with a lock nut to lock the positioning part to the mounting bracket.

[0008] According to some embodiments of this utility model, multiple mounting holes are arranged at intervals along the radial direction of the center line of the conveyor frame, and the connecting bolts, the locking nuts and the mounting holes correspond one-to-one.

[0009] According to some embodiments of the present invention, the mounting frame is provided with a vertically penetrating insertion hole, the conveying frame has a horizontal support surface to support the mounting frame, the support surface is provided with a vertically extending insertion rod, the insertion rod passes through the insertion hole and can restrict the rotation of the mounting frame relative to the insertion rod, and the insertion rod is detachably connected to a limiting structure on the upper side of the mounting frame to vertically limit the mounting frame.

[0010] According to some embodiments of the present invention, the mounting bracket includes: The central connecting part is used to connect the conveyor frame; Multiple crossbeams are connected to the central connecting part and are evenly spaced along the circumferential direction of the central connecting part. The crossbeams correspond one-to-one with the positioning parts, and the mounting grooves are disposed on the crossbeams.

[0011] According to some embodiments of this utility model, a reinforcing rib plate is connected between any two adjacent crossbeams.

[0012] According to some embodiments of the present invention, the frame is horizontally provided with a support platform to support the conveyor frame, and the driving device includes: Multiple first sprockets are rotatably mounted on the frame, with their rotation axes extending vertically. The double-row chain includes a lower single-row chain and an upper single-row chain arranged side by side and fixedly connected. The lower single-row chain is wound around a plurality of first sprockets, and the upper single-row chain has a front-to-back cooperating section on the side near the conveyor frame. A power mechanism is connected to one of the first sprockets to drive its rotation; A fixed chain is attached to the frame and distributed front to back; A second sprocket is fixedly installed on the conveyor frame. The second sprocket meshes with the fixed chain and the mating section of the upper single-row chain. The central axis of the second sprocket is collinear with the center line of the conveyor frame.

[0013] According to some embodiments of the present invention, the bottom of the conveyor frame is equipped with a plurality of universal ball bearings, and is supported on the support platform by the plurality of universal ball bearings.

[0014] According to some embodiments of the present invention, a bearing is installed on the conveyor frame, the bearing is coaxially distributed with the second sprocket, and the bearing is located on the upper side of the second sprocket. A guide groove extending forward and backward is defined on the frame, and the two opposite sidewalls of the guide groove contact the outer peripheral wall of the bearing.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of the tire painting conveying device according to an embodiment of the present utility model; Figure 2 This is a schematic diagram showing the connection between the conveyor frame and the drive device in an embodiment of this utility model; Figure 3 This is a schematic diagram of the installation structure of the conveyor frame and installation components according to an embodiment of the present utility model; Figure 4 This is an exploded view of the installation structure of the conveyor frame and installation components according to an embodiment of the present utility model; Figure 5 This is an exploded view of the installation components according to an embodiment of the present invention.

[0017] Icon labels: Frame 100, support platform 110, guide groove 120; Drive device 200, first sprocket 210, double-row chain 220, lower single-row chain 221, upper single-row chain 222, power mechanism 230, fixed chain 240; Conveyor frame 300, support surface 301, insertion rod 302, limiting structure 303, universal ball bearing 310; Mounting component 400, positioning part 410, positioning step 411, first step surface 412, second step surface 413, mounting hole 414, mounting bracket 420, mounting groove 421, insertion hole 422, center connecting part 423, crossbeam 424, reinforcing rib plate 425, connecting bolt 430, locking nut 440; Second sprocket 500; Bearing 600. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] In automated production lines, tire painting equipment typically consists of a conveyor system and an automatic painting unit (including spray guns, robotic arms, etc.) positioned at a specific location along the conveyor's travel path (the painting station). During the painting process, the conveyor system slowly transports the tire from back to front, and the tire rotates around its own axis as it is transported (the purpose of rotation is to ensure more even paint application). When the tire reaches the painting station, the automatic painting unit begins painting; when the tire leaves the painting station, the automatic painting unit stops, waiting for the next tire to enter the painting station. However, existing conveyor systems used for tire painting still have some shortcomings, such as poor versatility; a single conveyor system can often only be used to transport one or a very limited number of tire sizes.

[0023] Based on this, the present invention provides a conveying device for tire painting, which can effectively improve the above-mentioned problems.

[0024] The following description, with reference to the accompanying drawings, describes a conveying device for tire painting according to an embodiment of the present invention.

[0025] Reference Figures 1 to 3 As shown, a conveying device for tire painting according to an embodiment of the present invention includes: a frame 100, a drive device 200, a conveyor frame 300, and an installation assembly 400.

[0026] The rack 100 is used to provide a mounting and support carrier for various parts and components.

[0027] The drive unit 200 is mounted on the frame 100.

[0028] The conveyor frame 300 is connected to the conveying end of the drive device 200. The conveyor frame 300 can move back and forth under the drive of the drive device 200, and rotate synchronously around its own vertical center line during this process.

[0029] The mounting assembly 400 is connected to the top of the conveyor frame 300. The mounting assembly 400 includes multiple positioning portions 410 evenly arranged around the center line of the conveyor frame 300. Each positioning portion 410 has multiple positioning steps 411 arranged sequentially from bottom to top along a direction away from the center line of the conveyor frame 300. Clearly, the positioning steps 411 are located on the side of the positioning portion 410 facing the center line of the conveyor frame 300. The multiple positioning portions 410 form mounting positions for the tires through the positioning steps 411. Specifically, the multiple positioning portions 410 are positioned on the same... A positioning step 411 of a certain height can be used to support and horizontally position the tire, thereby mounting the tire onto the mounting assembly 400. Obviously, if a positioning part 410 is provided with x positioning steps 411, it can accommodate at least x tire sizes. In addition, the positioning part 410 can be adjusted radially along the center line of the conveyor frame 300. Thus, when multiple positioning steps 411 on the positioning part 410 cannot meet the requirements for tire positioning and installation, the positioning part 410 can be adjusted radially along the center line of the conveyor frame 300 to adapt and achieve compatibility with more tire sizes.

[0030] The tire painting conveying device of this embodiment features multiple circumferentially arranged positioning parts 410 at the top of the conveyor frame 300, and multiple positioning steps 411 on each positioning part 410. This allows for the installation of tires of different specifications via positioning steps 411 of varying heights, enabling the conveying of tires of various sizes. Furthermore, by allowing the positioning parts 410 to move radially along the centerline of the conveyor frame 300, it can accommodate even more tire sizes, demonstrating strong versatility. Additionally, tire installation and removal can be performed from the upper space between the multiple positioning parts 410, making operation very convenient.

[0031] In some specific embodiments, three positioning units 410 are provided.

[0032] It should be noted that since the tire painting conveyor needs to be used in conjunction with the automatic painting device, the automatic painting device can be set at a certain position along the length of the frame 100, and the drive device 200 can drive the conveyor frame 300 to pass through that position; in addition, in order for the automatic painting device to fully paint the tires, the drive device 200 should slowly drive the conveyor frame 300 to move and rotate.

[0033] Reference Figure 3 and Figure 4As shown, in some embodiments of this utility model, the positioning step 411 has a first step surface 412 and a second step surface 413. The first step surface 412 is horizontally arranged to horizontally support the tire. The second step surface 413 is located on the side of the first step surface 412 away from the center line of the conveyor frame 300. Along the direction away from the center line of the conveyor frame 300, the second step surface 413 is inclined upwards and is used to radially limit the tire. In this embodiment, the second step surface 413 is inclined upwards along the direction away from the center line of the conveyor frame 300. Compared with the vertically arranged second step surface 413, it is easier to place the tire between the positioning steps 411 of the same height of the multiple positioning parts 410.

[0034] Reference Figure 3 and Figure 5 As shown, in some embodiments of this utility model, the positioning part 410 is provided with a vertically penetrating mounting hole 414, and the mounting assembly 400 also includes a mounting bracket 420 and a connecting bolt 430. The mounting bracket 420 is connected to the top of the conveyor frame 300 and located below the positioning part 410 to support the positioning part 410. The mounting bracket 420 is provided with a mounting groove 421 corresponding to each positioning part 410, and the mounting groove 421 extends radially along the center line of the conveyor frame 300. The connecting bolt 430 passes through the mounting hole 414 and the mounting groove 421 and is threaded with a locking nut 440 to lock the positioning part 410 to the mounting bracket 420. Obviously, each positioning part 410 is provided with a corresponding connecting bolt 430.

[0035] In this embodiment, the above-described structure facilitates the movement and adjustment of the positioning part 410. Specifically, when adjusting the positioning part 410, the locking nut 440 can be loosened first, then the positioning part 410 can be slid along the mounting groove 421 to the corresponding position, and then the locking nut 440 can be tightened again to lock the positioning part 410 onto the mounting bracket 420, thereby realizing the position adjustment of the positioning part 410, which is very convenient to operate.

[0036] Reference Figure 3 and Figure 5 As shown, in some embodiments of this utility model, multiple mounting holes 414 are arranged at intervals along the radial direction of the center line of the conveyor frame 300, and the connecting bolts 430, locking nuts 440 and mounting holes 414 correspond one-to-one. In this way, when adjusting the position of the positioning part 410 in the radial direction of the center line of the conveyor frame 300, the positioning part 410 can be prevented from deflecting radially relative to the center line of the conveyor frame 300.

[0037] Reference Figure 3 and Figure 4As shown, in some embodiments of this utility model, the mounting frame 420 is provided with a vertically penetrating insertion hole 422, and the conveying frame 300 has a horizontal support surface 301 to support the mounting frame 420. A vertically extending insertion rod 302 is provided on the support surface 301. The insertion rod 302 passes through the insertion hole 422 and can restrict the rotation of the mounting frame 420 relative to the insertion rod 302, that is, the insertion hole 422 is a non-circular hole. In addition, the insertion rod 302 is detachably connected to a limiting structure 303 on the upper side of the mounting frame 420 to vertically limit the mounting frame 420, thereby fixing the mounting frame 420 to the conveying frame 300. The structure is simple and easy to assemble and disassemble. When it is necessary to disassemble the mounting frame 420, the limiting structure 303 can be removed first, and then the mounting frame 420 can be taken out upwards.

[0038] Based on the above embodiments, it is conceivable that the limiting structure 303 can be a limiting pin.

[0039] Based on the above embodiments, it can be understood that when the radial adjustment of the multi-level positioning steps 411 and the positioning part 410 cannot meet the tire positioning and installation requirements, the detachable mounting bracket 420 can be used to remove the entire mounting assembly 400 and replace it with a mounting assembly 400 of another specification for adaptation, which has strong versatility and expandability.

[0040] Reference Figure 4 and Figure 5 As shown, in some embodiments of this utility model, the mounting frame 420 includes a central connecting portion 423 and multiple crossbeams 424. The central connecting portion 423 is used to connect the conveyor frame 300. Specifically, the insertion hole 422 is provided on the central connecting portion 423; the multiple crossbeams 424 are connected to the central connecting portion 423 and are evenly spaced along the circumference of the central connecting portion 423; wherein, each crossbeam 424 corresponds to a positioning portion 410, and a mounting groove 421 is provided on the crossbeam 424, that is, the crossbeam 424 is used to install the positioning portion 410. By adopting the above structural configuration, the overall weight of the mounting frame 420 can be relatively reduced, achieving a lightweight design.

[0041] Based on the above embodiments, it is conceivable that the central connecting part 423 can be welded and fixed to the crossbeam 424.

[0042] Reference Figure 5 As shown, in some embodiments of this utility model, a reinforcing rib plate 425 is connected between any two adjacent crossbeams 424 to improve the structural strength of the mounting frame 420.

[0043] Reference Figures 1 to 3 As shown, in some embodiments of this utility model, the frame 100 is horizontally provided with a support platform 110, which is used to support the conveyor frame 300. The drive device 200 includes a first sprocket 210, a double-row chain 220, a power mechanism 230, and a fixed chain 240.

[0044] Multiple first sprockets 210 are provided, and all multiple first sprockets 210 are rotatably mounted on the frame 100, with the rotation axis extending vertically. Specifically, the multiple first sprockets 210 can be arranged back and forth at intervals.

[0045] The double-row chain 220 has a ring structure, which includes a lower single-row chain 221 and an upper single-row chain 222. The lower single-row chain 221 and the upper single-row chain 222 are arranged side by side and fixedly connected. They have the same shape and size. The lower single-row chain 221 is wound around multiple first sprockets 210. The upper single-row chain 222 has front and rear mating sections on the side near the conveyor frame 300.

[0046] The power mechanism 230 is connected to one of the first sprockets 210 and is used to drive the first sprocket 210 to rotate, thereby driving the double-row chain 220 to move.

[0047] The fixed chain 240 is fixed to the frame 100 and distributed front and back. The fixed chain 240 and the double-row chain 220 are located on opposite sides of the conveyor frame 300.

[0048] The conveyor frame 300 is fixedly installed with a second sprocket 500. The second sprocket 500 meshes with the fixed chain 240 and the mating section of the upper single-row chain 222. The central axis of the second sprocket 500 is collinear with the center line of the conveyor frame 300.

[0049] In this embodiment, by adopting the above-described structural configuration, the conveyor frame 300 can move back and forth while rotating around its own vertical centerline. For ease of understanding, please refer to the following... Figure 2 This describes the process and principle of how the drive unit 200 drives the conveyor frame 300.

[0050] Figure 2 In the process, the conveyor frame 300 needs to be conveyed from back to front. Therefore, the power mechanism 230 drives the first sprocket 210 to rotate clockwise (viewed from top to bottom). When the first sprocket 210 rotates clockwise, it will drive the mating section of the upper single-row chain 222 of the double-row chain 220 to move from back to front. When the mating section of the upper single-row chain 222 moves from back to front, it will drive the second sprocket 500 on the conveyor frame 300 to rotate counterclockwise around its own axis. Since the fixed chain 240 is fixed on the frame 100 and meshes with the second sprocket 500, the second sprocket 500 will also move from back to front along the fixed chain 240 while rotating counterclockwise. In this way, the conveyor frame 300 can move back and forth while rotating around its own center line.

[0051] Furthermore, it should be noted that painting is only one step in tire production; there are multiple upstream and downstream processes. In the automated production line, the upstream and downstream conveyor devices for tire painting in this embodiment need to connect to conveyor devices for other processes. The upstream conveyor device is used to transport the conveyor frame 300 to the rear end of the support platform 110 in this embodiment, so that the second sprocket 500 on the conveyor frame 300 meshes with the fixed chain 240 and the upper single-row chain 222. The downstream conveyor device is used to receive the conveyor frame 300 output from the front end of the support platform 110. That is, the conveyor frame 300 is not always connected to the drive device 200 in this embodiment, but needs to be transferred between different processes. Based on this, this embodiment uses the above-described structure to form the drive device 200 to facilitate the receiving and output of the conveyor frame 300.

[0052] Based on the above embodiments, it is conceivable that the power mechanism 230 can be a geared motor.

[0053] Reference Figure 1 and Figure 3 As shown, in some embodiments of this utility model, the bottom of the conveyor frame 300 is equipped with a plurality of universal balls 310 and is supported on the support platform 110 by the plurality of universal balls 310. In this way, the friction between the conveyor frame 300 and the support platform 110 during the transmission process can be reduced.

[0054] Reference Figure 1 and Figure 4 As shown, in some embodiments of this utility model, a bearing 600 is installed on the conveyor frame 300. The bearing 600 is coaxially distributed with the second sprocket 500 and is located on the upper side of the second sprocket 500. A guide groove 120 extending forward and backward is defined on the frame 100. The two opposite side walls of the guide groove 120 contact the outer peripheral wall of the bearing 600. By setting the guide groove 120 and the bearing 600, the cooperation between the two can provide auxiliary guidance for the conveyor frame 300, and the friction is small.

[0055] In some specific embodiments, the mounting component 400 is located on the upper side of the guide groove 120.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine different embodiments or examples described in this specification.

[0057] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A conveying device for tire painting, characterized in that, include: frame; The drive unit is mounted on the frame; The conveyor frame is connected to the conveying end of the drive device and can move back and forth and rotate around its own vertical center line under the drive of the drive device. An installation assembly is attached to the top of the conveyor frame. The installation assembly includes multiple positioning parts arranged circumferentially around the center line of the conveyor frame. Each positioning part is provided with multiple positioning steps, which are arranged sequentially from bottom to top along a direction away from the center line of the conveyor frame. The positioning parts form mounting positions for mounting tires through the positioning steps, and the positioning parts can be adjusted radially along the center line of the conveyor frame.

2. The conveying device for tire painting according to claim 1, characterized in that, The positioning step has a first step surface and a second step surface. The first step surface is horizontally arranged, and the second step surface is located on the side of the first step surface away from the center line of the conveyor frame. Along the direction away from the center line of the conveyor frame, the second step surface is inclined upward.

3. The conveying device for tire painting according to claim 1, characterized in that, The positioning part is provided with a mounting hole, and the mounting assembly further includes: The mounting frame is connected to the top of the conveyor frame and located below the positioning part. The mounting frame is provided with a mounting groove corresponding to each positioning part, and the mounting groove extends radially along the center line of the conveyor frame. A connecting bolt passes through the mounting hole and the mounting groove, and is threaded with a lock nut to lock the positioning part to the mounting bracket.

4. The conveying device for tire painting according to claim 3, characterized in that, Along the radial direction of the center line of the conveyor frame, multiple mounting holes are spaced apart, and the connecting bolts, the locking nuts, and the mounting holes correspond one-to-one.

5. The conveying device for tire painting according to claim 3, characterized in that, The mounting frame is provided with a vertically penetrating insertion hole, and the conveying frame has a horizontal support surface to support the mounting frame. A vertically extending insertion rod is provided on the support surface. The insertion rod passes through the insertion hole and can restrict the rotation of the mounting frame relative to the insertion rod. A limiting structure is detachably connected to the upper side of the mounting frame to vertically limit the mounting frame.

6. The conveying device for tire painting according to claim 3, characterized in that, The mounting bracket includes: The central connecting part is used to connect the conveyor frame; Multiple crossbeams are connected to the central connecting part and are evenly spaced along the circumferential direction of the central connecting part. The crossbeams correspond one-to-one with the positioning parts, and the mounting grooves are disposed on the crossbeams.

7. The conveying device for tire painting according to claim 6, characterized in that, A reinforcing rib is connected between any two adjacent beams.

8. The conveying device for tire painting according to claim 1, characterized in that, The frame is horizontally provided with a support platform to support the conveyor frame, and the drive device includes: Multiple first sprockets are rotatably mounted on the frame, with their rotation axes extending vertically. The double-row chain includes a lower single-row chain and an upper single-row chain arranged side by side and fixedly connected. The lower single-row chain is wound around a plurality of first sprockets, and the upper single-row chain has a front-to-back cooperating section on the side near the conveyor frame. A power mechanism is connected to one of the first sprockets to drive its rotation; A fixed chain is attached to the frame and distributed front to back; A second sprocket is fixedly installed on the conveyor frame. The second sprocket meshes with the fixed chain and the mating section of the upper single-row chain. The central axis of the second sprocket is collinear with the center line of the conveyor frame.

9. The conveying device for tire painting according to claim 8, characterized in that, The bottom of the conveyor frame is equipped with multiple omnidirectional ball bearings, which support the support platform.

10. The conveying device for tire painting according to claim 8, characterized in that, The conveyor frame is equipped with a bearing, which is coaxially distributed with the second sprocket and located above the second sprocket. The frame defines a guide groove that extends forward and backward, and the two opposite sidewalls of the guide groove contact the outer peripheral wall of the bearing.

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