An automatic composite production line and production method for steering wheel heating pads

Abstract

The present application relates to the technical field of automobile parts manufacturing, in particular to a kind of steering wheel heating pad automation composite production line and production method, including material conveying line body, and the adhesive bonding station of adhesive tape and small silver mesh, adhesive tape and PE adhesive bonding station, PE and large silver mesh adhesive bonding station, heating layer adhesive bonding station, automatic film coating station and laser cutting station are sequentially arranged along the conveying direction of the material conveying line body, the adhesive tape and small silver mesh adhesive bonding station, the adhesive tape and PE adhesive bonding station, PE and large silver mesh adhesive bonding station, heating layer adhesive bonding station, automatic film coating station and laser cutting station are sequentially connected by the material conveying line body, material conveying line body is arranged in closed loop and is equipped with multiple circulating carriers, material tool is installed on each carrier, so that material tool is automatically returned to starting position after completing a complete processing cycle, without manual handling empty tool reposition, improve processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of automotive parts manufacturing technology, specifically to an automated composite production line and production method for steering wheel heating pads. Background Technology

[0002] Steering wheel heating pads are crucial components for enhancing driving comfort in automobiles. They are typically composed of multiple layers of heterogeneous materials, including a heating layer, an insulating layer (PE), upper and lower conductive layers (silver mesh), an adhesive layer, and a surface protective film. Their manufacturing process requires extremely high positional accuracy and reliable adhesion between each layer to ensure uniform heating, insulation safety, and long service life.

[0003] Currently, production in the industry mainly relies on manual labor or semi-automated equipment. Manual lamination is inefficient, results in poor product consistency, and makes it difficult to ensure precise alignment of multiple layers of materials, easily leading to misalignment, bubbling, and other problems, resulting in low product yield. Existing semi-automatic lamination equipment often has limited functionality, requiring different positioning fixtures for different material layers, making changeovers cumbersome and unable to form a continuous and efficient production line. Furthermore, end-stage cutting relies heavily on die stamping, which has limited precision and high die costs.

[0004] Therefore, developing a specialized production line that can achieve full automation, high flexibility, and high precision from material feeding, precise positioning and stacking, automatic lamination to vision-guided precision cutting has become a technical challenge that the industry urgently needs to solve. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an automated composite production line and production method for steering wheel heating pads, thereby effectively solving the above problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] In a first aspect, the present invention provides an automated composite production line for steering wheel heating pads, comprising:

[0008] The material conveying line, and the tape and small silver mesh bonding station, tape and PE bonding station, PE and large silver mesh bonding station, heating layer bonding station, automatic film coating station and laser cutting station arranged sequentially along the conveying direction of the material conveying line.

[0009] The adhesive tape bonding station and the PE bonding station both include a flipping fixture, a material fixture, and a lifting and pressing mechanism located below the flipping fixture. The flipping fixture is installed in a flipping manner around a horizontal flipping axis and is fixedly provided with a positioning boss. The positioning boss has a working surface that matches the outer contour of the silver mesh. Multiple through holes are distributed on the working surface, and each through hole is connected to a vacuum generating pipeline.

[0010] Both the tape-PE bonding station and the heating layer bonding station include a flipping fixture, a material fixture, and a lifting and pressing mechanism located below the flipping fixture. The flipping fixture is installed in a flipping manner around a horizontal flipping axis and is provided with a positioning pin. The positioning pin is connected to the driving device and has a first position and a second position that can be switched along a direction perpendicular to the working surface of the flipping fixture. When in the first position, the end of the positioning pin protrudes from the working surface of the flipping fixture, and when in the second position, the end of the positioning pin is submerged in the working surface of the flipping fixture.

[0011] The automatic film coating station includes a frame, a film coating mechanism installed on the frame, a material storage mechanism, and a CCD image acquisition device, wherein the CCD image acquisition device is located above the film coating mechanism.

[0012] The laser cutting station includes a laser cutting machine, a robotic arm, a vision acquisition device, a finished product material box, and a waste box. The robotic arm is located between the material conveyor line and the laser cutting machine. The vision acquisition device is arranged adjacent to the cutting head of the laser cutting machine and faces the working platform of the laser cutting machine.

[0013] In some embodiments, the material conveying line is arranged in a closed loop and is provided with multiple circulating carriers, each carrier being equipped with material fixtures, and the carriers circulate with the closed-loop material conveying line.

[0014] In some embodiments, the flipping fixture in the tape-PE bonding station and the heating layer bonding station is further provided with a secondary positioning mechanism. The secondary positioning mechanism includes a side pusher that is movable in a direction parallel to the working surface of the flipping fixture. The side pusher contacts the side edge of the material passing through the positioning pin.

[0015] In some embodiments, the heating layer bonding station is provided with a flipping station on the downstream side along the material conveying direction.

[0016] In some embodiments, the coating mechanism of the automatic coating station includes a pre-pressure roller and a main coating roller. The pre-pressure roller and the main coating roller are arranged sequentially along the material conveying direction, and the axis of the pre-pressure roller is parallel to that of the main coating roller. The CCD image acquisition device is located between the pre-pressure roller and the main coating roller along the material conveying direction.

[0017] In some embodiments, the robotic arm is positioned between the end station of the material conveying line and the working platform of the laser cutting machine, and is located in the area above the finished product bin and the waste bin.

[0018] In some embodiments, a safety protection system is also included, which surrounds each workstation and includes guardrails, guardrail gates with safety locks and maintenance doors opened on the guardrails, and emergency stop devices distributed at each workstation.

[0019] In some embodiments, the system further includes an electrical control cabinet, which is electrically connected to the drive motor, sensor, drive device, and vacuum generating pipeline of each workstation via signal lines.

[0020] Secondly, the present invention also provides a production method for use in any of the above-mentioned automated composite production lines for steering wheel heating pads, comprising the following steps:

[0021] S1. Lay the tape on the positioning surface of the material fixture, and fix the small silver mesh to the raised surface of the positioning boss of the flipping fixture by vacuum adsorption. After the flipping fixture flips, it drives the material fixture to rise, so that the small silver mesh and the tape are pressed together.

[0022] S2. The PE layer passes through the positioning hole on it and is positioned by the positioning pin in the first position in the tape and PE bonding station. After the flipping fixture flips, it drives the material fixture to rise. When the PE layer contacts the lower component, the positioning pin switches to the second position to complete the pressing of the PE layer and the lower component.

[0023] S3. The large silver mesh is fixed to the raised surface of the positioning boss of the flipping fixture by vacuum adsorption. After the flipping fixture flips, it drives the material fixture to rise, so that the large silver mesh is pressed with the lower component.

[0024] S4. The heating layer passes through the positioning hole on it and enters the positioning pin in the first position in the heating layer bonding station. After the flipping fixture flips, it drives the material fixture to rise. When the heating layer contacts the lower component, the positioning pin switches to the second position to complete the pressing of the heating layer and the lower component.

[0025] S5. After the CCD image acquisition device acquires the image of the material surface, the coating mechanism applies a surface protective film to the material surface.

[0026] S6. The robotic arm transfers the coated material to the working platform of the laser cutting machine. After the vision acquisition device obtains the material outline information, the laser cutting machine cuts the material according to the outline information. After the cutting is completed, the robotic arm transfers the finished product and waste material to the finished product box and waste material box respectively.

[0027] In some embodiments, after the heating layer and the lower component are pressed together and before the surface protective film is laminated onto the material surface, the method further includes: transferring the material tooling carrying the semi-finished material to the flipping station and performing vertical flipping on the semi-finished material.

[0028] Furthermore, the beneficial effects of the present invention are as follows:

[0029] This invention connects the tape-to-small silver mesh bonding station, the tape-to-PE bonding station, the PE-to-large silver mesh bonding station, the heating layer bonding station, the automatic laminating station, and the laser cutting station in sequence via a material conveyor line. The material conveyor line is arranged in a closed loop and includes multiple circulating carriers, each equipped with a material fixture. This allows the material fixture to automatically return to its starting position after completing a full processing cycle, eliminating the need for manual repositioning of empty fixtures. This reduces the number of operators required at both ends of the line and improves processing efficiency. Attached Figure Description

[0030] Figure 1 A schematic diagram of the isometric structure of the automated composite production line for steering wheel heating pads provided by the present invention;

[0031] Figure 2 This is a schematic diagram of the main structure of the automated composite production line for steering wheel heating pads provided by the present invention;

[0032] Figure 3 A top view of the automated composite production line for steering wheel heating pads provided by the present invention;

[0033] Figure 4 This is a schematic diagram of the overall process of the automated composite production line for steering wheel heating pads provided by the present invention.

[0034] In the diagram: 1-Adhesive tape and small silver mesh bonding station, 2-Adhesive tape and PE bonding station, 3-PE and large silver mesh bonding station, 4-Heating layer bonding station, 5-Automatic film coating station, 6-Laser cutting station, 7-Material conveying line, 8-Inspection door, 9-Robot arm, 10-Finished product material box, 11-Guard fence door, 12-Guard fence, 13-Electrical control cabinet, 14-Waste bin. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the description of the embodiments of the present invention, unless otherwise stated, " / " means "or", for example, A / B can mean A or B; "and / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. In addition, in the description of the embodiments of the present invention, "multiple" means two or more. Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Thus, features defined with "first" and "second" can explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, unless otherwise stated, "multiple" means two or more.

[0036] like Figures 1-3 As shown, in a first aspect, the present invention provides an automated composite production line for steering wheel heating pads, comprising:

[0037] The material conveying line 7, and the tape and small silver mesh bonding station 1, tape and PE bonding station 2, PE and large silver mesh bonding station 3, heating layer bonding station 4, automatic film coating station 5 and laser cutting station 6 arranged sequentially along the conveying direction of the material conveying line 7.

[0038] The tape bonding station 1 and the PE bonding station 3 both include a flipping fixture, a material fixture, and a lifting and pressing mechanism located below the flipping fixture. The flipping fixture is installed by flipping around a horizontal flipping axis and is fixedly provided with a positioning boss. The positioning boss has a working surface that matches the outer contour of the silver mesh. Multiple through holes are distributed on the working surface, and each through hole is connected to the vacuum generating pipeline.

[0039] Both the tape and PE bonding station 2 and the heating layer bonding station 4 include a flipping fixture, a material fixture, and a lifting and pressing mechanism located below the flipping fixture. The flipping fixture is flipped and installed around a horizontal flipping axis and is equipped with a positioning pin. The positioning pin is connected to the drive device and has a first position and a second position that can be switched along a direction perpendicular to the working surface of the flipping fixture. When in the first position, the end of the positioning pin protrudes from the working surface of the flipping fixture, and when in the second position, the end of the positioning pin is submerged in the working surface of the flipping fixture.

[0040] The automatic laminating station 5 includes a frame, a laminating mechanism mounted on the frame, a material storage mechanism, and a CCD image acquisition device, with the CCD image acquisition device positioned above the laminating mechanism.

[0041] The laser cutting station 6 includes a laser cutting machine, a robot arm 9, a vision acquisition device, a finished product material box 10, and a waste box 14. The robot arm 9 is located between the material conveyor line 7 and the laser cutting machine. The vision acquisition device is arranged adjacent to the cutting head of the laser cutting machine and faces the working platform of the laser cutting machine.

[0042] In one possible implementation, the material conveying line 7 is arranged in a closed loop and is equipped with multiple circulating carriers. Each carrier is equipped with material fixtures. The carriers circulate with the closed-loop material conveying line 7, eliminating the need for manual handling and resetting of empty fixtures. This reduces the number of operators required at both ends of the line and improves the continuity of production line operation.

[0043] In one possible implementation, the flipping fixture in the tape-PE bonding station 2 and the heating layer bonding station 4 is further provided with a secondary positioning mechanism. The secondary positioning mechanism includes a side pusher that is movable in a direction parallel to the working surface of the flipping fixture. The side pusher contacts the side edge of the material passing through the positioning pin, eliminating the residual positioning deviation caused by the fit gap between the positioning hole and the positioning pin, and further improving the overlapping alignment accuracy.

[0044] In one possible implementation, the heating layer bonding station 4 is provided with a flipping station on the downstream side along the material conveying direction, so that the semi-finished material is flipped up and down before entering the automatic coating station 5, ensuring that the surface to be coated is facing up, and avoiding rework caused by incorrect coating direction.

[0045] In one possible implementation, the automatic coating station 5 has a coating mechanism including a pre-pressure roller and a main coating roller. The pre-pressure roller and the main coating roller are arranged sequentially along the material conveying direction, and the axis of the pre-pressure roller is parallel to that of the main coating roller. A CCD image acquisition device is located between the pre-pressure roller and the main coating roller along the material conveying direction.

[0046] In one possible implementation, the robotic arm 9 is positioned between the end station of the material conveyor line 7 and the working platform of the laser cutting machine, and is located in the area above the finished product bin 10 and the waste bin 14, which shortens the material handling path and improves the cycle efficiency of the end process.

[0047] One possible implementation also includes a safety protection system surrounding each workstation. The safety protection system includes a guardrail 12, a guardrail gate 11 with a safety lock and an inspection door 8 opened on the guardrail 12, and emergency stop devices distributed at each workstation. It also includes an electrical control cabinet 13, which is electrically connected to the drive motor, sensor, drive device and vacuum generating pipeline of each workstation via signal lines. In the above structure, all workstations of the entire production line of the present invention operate within the coverage of the safety protection system, ensuring the synchronization and safety interlock of the actions of each workstation.

[0048] like Figure 4 As shown, in a second aspect, the present invention also provides a production method for an automated composite production line for steering wheel heating pads as described above, comprising the following steps:

[0049] S1. Lay the tape on the positioning surface of the material fixture, and fix the small silver mesh to the raised surface of the positioning boss of the flipping fixture by vacuum adsorption. After the flipping fixture flips, it drives the material fixture to rise, so that the small silver mesh and the tape are pressed together.

[0050] S2. The PE layer passes through the positioning hole on it and is inserted into the positioning pin in the first position of the tape and PE bonding station 2. After the flipping fixture flips, it drives the material fixture to rise. When the PE layer contacts the lower component, the positioning pin switches to the second position to complete the pressing of the PE layer and the lower component.

[0051] S3. The large silver mesh is fixed to the raised surface of the positioning boss of the flipping fixture by vacuum adsorption. After the flipping fixture flips, it drives the material fixture to rise, so that the large silver mesh is pressed with the lower component.

[0052] S4. The heating layer passes through the positioning hole on it and enters the positioning pin in the first position in the heating layer bonding station 4. After the flipping fixture flips, it drives the material fixture to rise. When the heating layer contacts the lower component, the positioning pin switches to the second position to complete the pressing of the heating layer and the lower component.

[0053] S5. After the CCD image acquisition device acquires the image of the material surface, the coating mechanism applies a surface protective film to the material surface.

[0054] S6. The robotic arm 9 transfers the coated material to the working platform of the laser cutting machine. After the vision acquisition device obtains the material outline information, the laser cutting machine cuts the material according to the outline information. After the cutting is completed, the robotic arm 9 transfers the finished product and waste to the finished product box 10 and the waste box 14 respectively.

[0055] In some embodiments, after the heating layer and the lower component are pressed together and before the surface protective film is laminated onto the material surface, the method further includes: transferring the material tooling carrying the semi-finished material to the flipping station and performing vertical flipping on the semi-finished material.

[0056] The following will describe an embodiment of the present invention in conjunction with a specific implementation process:

[0057] After the production line starts, the material conveyor line 7 operates continuously in a closed loop. The empty material fixture first enters the tape and small silver mesh bonding station 1 with the carrier. The operator lays and fixes the double-sided tape according to the positioning marks on the surface of the material fixture, so that the bonding side of the tape faces upward. At the same time, the operator places the small silver mesh on the flipping fixture at this station. The outline of the small silver mesh corresponds to the working surface of the positioning boss fixed on the flipping fixture, and the outer edge of the small silver mesh matches the outer outline of the working surface. Then, the vacuum generating pipeline connected to the through holes distributed on the working surface starts to work. The negative pressure generated by it will attract and constrain the small silver mesh to the surface of the working surface. The flipping fixture rotates around the horizontal flipping axis, so that the small silver mesh rotates with the flipping fixture to face downward. At this point, the material fixture carrying the tape has been conveyed by the material conveyor line 7 to the area directly below the flipping fixture. The lifting and pressing mechanism located below the flipping fixture starts to operate, lifting the material fixture upward so that the adhesive surface of the tape contacts the small silver mesh and completes the pressing and bonding under the lifting pressure. After the pressing is completed, the lifting and pressing mechanism resets, the flipping fixture flips back to the initial angle, the vacuum generating pipeline stops working, the small silver mesh separates from the working surface, and the material fixture moves to the next station with the carrier.

[0058] The semi-finished material fixture with the bonded silver mesh arrives at the tape and PE bonding station 2. The operator inserts the PE layer through the pre-punched positioning hole into the positioning pin in the first position, completing the pre-positioning of the PE layer on the flipping fixture. Subsequently, the secondary positioning mechanism on the flipping fixture starts working. The secondary positioning mechanism includes a side pusher that can move along a direction parallel to the working surface of the flipping fixture. The side pusher contacts the side edge of the PE layer inserted on the positioning pin and applies a pushing force to perform in-plane fine-tuning and correction of the PE layer's position. During this process, the operator peels off the release paper from the surface of the silver mesh, exposing the bonding surface of the silver mesh facing upwards. Then, the flipping fixture flips around the horizontal flipping axis, and the PE layer flips with the flipping fixture to face downwards. The material fixture is then conveyed stepwise by the material conveyor line 7 to the area directly below the flipping fixture. The lifting and pressing mechanism then presses the material... As the fixture is lifted upwards, at the moment the PE layer is about to contact the lower component, the drive device moves the positioning pin from the first position to the second position along a direction perpendicular to the working surface of the flipping fixture. The end of the positioning pin is submerged within the working surface of the flipping fixture. After the PE layer loses the constraint of the positioning pin, it falls flat onto the bonding surface of the small silver mesh. Under the continuous pressure of the lifting and pressing mechanism, the PE layer and the small silver mesh component are pressed and bonded. After the pressing is completed, the lifting and pressing mechanism is reset, the flipping fixture flips back to the initial angle, and the positioning pin extends back to the first position under the action of the drive device. The material fixture moves to the next station with the carrier.

[0059] The material is conveyed to the PE and large silver mesh bonding station 3. The operator places the large silver mesh on the working surface of the positioning boss. Multiple through holes on the working surface are used to adsorb the large silver mesh through the vacuum generating pipeline. The flipping device drives the large silver mesh to flip downwards. The large silver mesh contacts the bonding surface of the PE layer and completes the pressing and bonding under the action of lifting pressure. Then, the lifting and pressing mechanism is reset, the flipping device flips back to the initial angle, the vacuum generating pipeline stops working, and the material tooling moves to the next station with the carrier.

[0060] The material is conveyed to the heating layer bonding station 4. The operator inserts the heating layer through the pre-punched positioning hole into the positioning pin in the first position to achieve the pre-positioning of the heating layer on the flipping fixture. Subsequently, the side pusher of the secondary positioning mechanism moves in a direction parallel to the working surface of the flipping fixture, contacts the side edge of the heating layer inserted on the positioning pin, and performs a fine-tuning correction. The operator peels off the release paper on the surface of the large silver mesh, exposing the bonding surface of the large silver mesh facing upward. The flipping fixture flips the heating layer to face downward. The lifting and pressing mechanism lifts the material fixture upward. When the heating layer is about to contact the large silver mesh component below, the drive device drives the positioning pin to switch from the first position to the second position in a direction perpendicular to the working surface of the flipping fixture. After pressing is completed, the lifting and pressing mechanism resets, the flipping fixture flips back to the initial angle, and the positioning pin extends back to the first position under the action of the drive device.

[0061] After the heating layer is pressed, the material tooling is transported by the material conveying line 7 to the flipping station set downstream of the heating layer bonding station 4 along the material conveying direction. The semi-finished material is flipped from the material tooling so that the surface to be coated is facing up.

[0062] Subsequently, the semi-finished product enters the automatic lamination station 5, where the lamination mechanism first flattens the material using a pre-pressure roller. A CCD camera at the station scans the material surface, accurately identifying the copper foil pads on the silver mesh and highlighting them on the control screen. Following the prompts, the operator manually peels off the release paper from the corresponding area and applies a small piece of protective release paper. Once completed, the main lamination roller starts, automatically and smoothly laminating the entire roll of surface protective film onto the material surface.

[0063] After lamination, the material conveyor line 7 transports the large sheet material carrying all the completed composite processes to the laser cutting station 6 of the material conveyor line 7. The robot arm 9 picks up the large sheet material from the material tooling and transfers it to the working platform of the laser cutting machine. The vision acquisition device acquires images of the sheet material on the working platform, obtains the outline information of the sheet material, and performs feature matching with the preset standard product template to generate a cutting path. The laser cutting machine cuts the sheet material according to the cutting path, cutting the composite sheet into the final product shape. After cutting, the robot arm 9 picks up the formed steering wheel heating pad product from the working platform and transfers it to the finished product material box 10. At the same time, the remaining edge waste after cutting is pushed and swept into the waste box 14.

[0064] At this point, a complete production cycle ends. The unloaded material tooling continues to circulate along the closed-loop material conveyor line 7 with the carrier, automatically returning to the starting position to wait for the next round of feeding and processing cycle.

[0065] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An automated composite production line for steering wheel heating pads, characterized in that, include: The material conveying line, and the tape and small silver mesh bonding station, tape and PE bonding station, PE and large silver mesh bonding station, heating layer bonding station, automatic film coating station and laser cutting station arranged sequentially along the conveying direction of the material conveying line. The adhesive tape bonding station and the PE bonding station both include a flipping fixture, a material fixture, and a lifting and pressing mechanism located below the flipping fixture. The flipping fixture is installed in a flipping manner around a horizontal flipping axis and is fixedly provided with a positioning boss. The positioning boss has a working surface that matches the outer contour of the silver mesh. Multiple through holes are distributed on the working surface, and each through hole is connected to a vacuum generating pipeline. Both the tape-PE bonding station and the heating layer bonding station include a flipping fixture, a material fixture, and a lifting and pressing mechanism located below the flipping fixture. The flipping fixture is installed in a flipping manner around a horizontal flipping axis and is provided with a positioning pin. The positioning pin is connected to the driving device and has a first position and a second position that can be switched along a direction perpendicular to the working surface of the flipping fixture. When in the first position, the end of the positioning pin protrudes from the working surface of the flipping fixture, and when in the second position, the end of the positioning pin is submerged in the working surface of the flipping fixture. The automatic film coating station includes a frame, a film coating mechanism installed on the frame, a material storage mechanism, and a CCD image acquisition device, wherein the CCD image acquisition device is located above the film coating mechanism. The laser cutting station includes a laser cutting machine, a robotic arm, a vision acquisition device, a finished product material box, and a waste box. The robotic arm is located between the material conveying line and the laser cutting machine. The vision acquisition device is arranged adjacent to the cutting head of the laser cutting machine and faces the working platform of the laser cutting machine. The flipping fixture in the tape-PE bonding station and the heating layer bonding station is also provided with a secondary positioning mechanism. The secondary positioning mechanism includes a side pusher that is movable in a direction parallel to the working surface of the flipping fixture. The side pusher contacts the side edge of the material passing through the positioning pin.

2. The automated composite production line for steering wheel heating pads as described in claim 1, characterized in that, The material conveying line is arranged in a closed loop and is equipped with multiple circulating carriers. Each carrier is equipped with material fixtures and the carriers circulate with the closed-loop material conveying line.

3. The automated composite production line for steering wheel heating pads as described in claim 1, characterized in that, The heating layer bonding station is provided with a flipping station on the downstream side along the material conveying direction.

4. The automated composite production line for steering wheel heating pads as described in claim 1, characterized in that, The automatic coating station's coating mechanism includes a pre-pressure roller and a main coating roller. The pre-pressure roller and the main coating roller are arranged sequentially along the material conveying direction, and the axis of the pre-pressure roller is parallel to that of the main coating roller. The CCD image acquisition device is located between the pre-pressure roller and the main coating roller along the material conveying direction.

5. The automated composite production line for steering wheel heating pads as described in claim 1, characterized in that, The robotic arm is positioned between the end station of the material conveying line and the working platform of the laser cutting machine, and is located in the area above the finished product bin and the waste bin.

6. The automated composite production line for steering wheel heating pads as described in claim 1, characterized in that, It also includes a safety protection system that surrounds each workstation, including guardrails, guardrail gates with safety locks and maintenance doors opened on the guardrails, and emergency stop devices distributed at each workstation.

7. The automated composite production line for steering wheel heating pads as described in claim 1, characterized in that, It also includes an electrical control cabinet, which is electrically connected to the drive motor, sensor, drive device and vacuum generation pipeline of each workstation via signal lines.

8. A production method using an automated composite production line for steering wheel heating pads as described in any one of claims 1-7, characterized in that, Includes the following steps: S1. Lay the tape on the positioning surface of the material fixture, and fix the small silver mesh to the raised surface of the positioning boss of the flipping fixture by vacuum adsorption. After the flipping fixture flips, it drives the material fixture to rise, so that the small silver mesh and the tape are pressed together. S2. The PE layer passes through the positioning hole on it and enters the positioning pin in the first position in the bonding station of the tape and PE. After the flipping fixture flips, it drives the material fixture to rise. When the PE layer and the small silver mesh come into contact with the lower component formed by pressing the tape, the positioning pin switches to the second position to complete the pressing of the lower component formed by pressing the PE layer and the small silver mesh with the tape. S3. The large silver mesh is fixed to the raised surface of the positioning boss of the flipping fixture by vacuum adsorption. After the flipping fixture flips, it drives the material fixture to rise, so that the large silver mesh, PE layer, small silver mesh and tape are pressed together to form the lower component. S4. The heating layer passes through the positioning hole on it and enters the positioning pin in the first position in the heating layer bonding station. After the flipping fixture flips, the material fixture is driven to rise. When the heating layer and the lower component formed by pressing the large silver mesh, PE layer, small silver mesh and tape come into contact, the positioning pin switches to the second position to complete the pressing of the heating layer and the lower component formed by pressing the large silver mesh, PE layer and small silver mesh and tape. S5. After the CCD image acquisition device acquires the image of the material surface, the coating mechanism applies a surface protective film to the material surface. S6. The robotic arm transfers the coated material to the working platform of the laser cutting machine. After the vision acquisition device obtains the material outline information, the laser cutting machine cuts the material according to the outline information. After the cutting is completed, the robotic arm transfers the finished product and waste material to the finished product box and waste material box respectively.

9. The production method as described in claim 8, characterized in that, After the lower component, formed by pressing the heating layer, large silver mesh, PE layer, small silver mesh, and tape together, is laminated, and before the surface protective film is laminated onto the material surface, the process also includes: transferring the material tooling carrying the semi-finished material to the flipping station, and performing up-and-down flipping on the semi-finished material.

Images