An automatic bonding device and method for a pantograph slider

Abstract

The present invention relates to the technical field of pantograph slide plates. More specifically, it relates to an automatic bonding device and method for pantograph slide plates, including a feeding mechanism I, a feeding mechanism II, a carbon material support plate, a six-axis robotic arm, a glue spraying head, and a clamping device. An aluminum bracket support plate is arranged on the feeding mechanism I, and an aluminum bracket is placed at the upper end of the aluminum bracket support plate. The feeding mechanism II is arranged on one side of the feeding mechanism I, and the carbon material support plate is arranged on the feeding mechanism II, and carbon materials are placed at the upper end of the carbon material support plate. A manipulator capable of clamping the aluminum bracket is arranged at the end of the six-axis robotic arm, the glue spraying head is fixedly arranged on the manipulator, and the glue spraying head is connected with an automatic glue applicator. The clamping device is arranged on one side of the feeding mechanism II, and a clamping fixture capable of clamping the combination of the carbon material and the aluminum bracket is arranged on the clamping device. The present invention can automatically realize glue application and bonding operations, with simple operation, low cost, time-saving and labor-saving, and high consistency of finished products.

Description

Technical Field

[0001] The present invention relates to the technical field of pantograph slide plates, and more specifically, to an automatic bonding device and method for pantograph slide plates. Background Art

[0002] With the continuous development of science and technology in our country, the speed of EMUs is getting faster and faster, and the requirements for pantograph carbon slide plates are also getting higher and higher. Although there are many market suppliers, most manufacturers use manual glue application to bond pantograph slide plates, and it is very difficult to ensure the consistency of manual bonding of carbon slide plates.

[0003] Chinese Patent Invention No. CN109395952A discloses a pantograph slide plate glue application device and its glue application method. Although it can realize automatic glue application to carbon materials or aluminum brackets, manual bonding of carbon materials and aluminum brackets is still required, and it is difficult to guarantee the bonding accuracy.

[0004] Therefore, it is necessary to improve the existing technology. Summary of the Invention

[0005] In order to overcome the deficiencies in the prior art, an automatic bonding device and method for pantograph slide plates that can automatically apply glue and bond are provided.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0007] Provide an automatic bonding device for pantograph slide plates, including:

[0008] Feeding mechanism Ⅰ;

[0009] An aluminum bracket support plate is arranged on the feeding mechanism Ⅰ and driven by the feeding mechanism Ⅰ. An aluminum bracket is placed on the upper end of the aluminum bracket support plate;

[0010] Feeding mechanism Ⅱ, arranged on one side of the feeding mechanism Ⅰ;

[0011] A carbon material support plate is arranged on the feeding mechanism Ⅱ and driven by the feeding mechanism Ⅱ. A carbon material is placed on the upper end of the carbon material support plate;

[0012] A six-axis robotic arm is arranged between the feeding mechanism Ⅰ and the feeding mechanism Ⅱ. A manipulator capable of clamping the aluminum bracket is arranged at the end of the six-axis robotic arm, and the six-axis robotic arm is connected to a control system;

[0013] A glue spraying head is fixedly arranged on the manipulator, and the glue spraying head is connected to an automatic glue applicator;

[0014] A clamping device is arranged on one side of the feeding mechanism Ⅱ, and a clamping fixture capable of clamping the combination of carbon materials and aluminum brackets is arranged on the clamping device.

[0015] Furthermore, both the feeding mechanism I and the feeding mechanism II are roller conveyors, and adjustable guide rods are arranged on both sides of the roller conveyor.

[0016] Furthermore, a limiter is arranged on one side of the feeding mechanism I and / or the feeding mechanism II. The limiter includes a linear driving mechanism and a limiting block. The limiting block is arranged at the working end of the linear driving mechanism, and the moving direction of the linear driving mechanism is perpendicular to the driving direction of the feeding mechanism I or the feeding mechanism II;

[0017] A positioning block is arranged at the corresponding position of the other side of the feeding mechanism I and / or the feeding mechanism II with respect to the limiter.

[0018] Furthermore, the clamping fixture includes a U-shaped frame, a sliding rod and a control handle. The sliding rod is slidably arranged at the upper end of the U-shaped frame and penetrates through the upper arm of the U-shaped frame. The control handle is hinged at the upper end of the sliding rod, and the same connecting rod is hinged between the control handle and the U-shaped frame. A conical spring is connected to the lower end of the sliding rod.

[0019] Furthermore, the clamping device includes a linear propulsion frame, a mounting frame and a pneumatic gripper. The linear propulsion frame is arranged on the side of the feeding mechanism II away from the six-axis robotic arm, and the linear propulsion frame can move linearly along a direction perpendicular to the feeding mechanism II;

[0020] The mounting frame is fixedly arranged on the linear propulsion frame, and the pneumatic gripper is arranged on the mounting frame and can clamp the U-shaped frame.

[0021] Furthermore, the clamping device further includes a linear slide plate and a rotary drive. The linear slide plate is slidably arranged on the mounting frame, and a drive mechanism is arranged between the linear slide plate and the mounting frame;

[0022] The rotary drive includes a hinge seat, a turntable and a lever. The hinge seat is fixedly arranged on the linear slide plate, the turntable is rotatably arranged on the hinge seat, a lever matched with the control handle is fixedly connected to one side of the turntable close to the pneumatic gripper, a hinge rod is eccentrically arranged on the other side of the turntable, and a drive cylinder is arranged between the hinge rod and the linear slide plate.

[0023] Furthermore, the aluminum bracket support plate includes a bottom plate, a support arm and a push-pull type quick clamp. The support arm is fixedly arranged on the bottom plate, and the push-pull type quick clamp is arranged on the support arm and corresponds to the placement position of the aluminum bracket.

[0024] Furthermore, an unlocking mechanism matched with the push-pull type quick clamp is arranged on one side of the feeding structure I.

[0025] Furthermore, both the feeding mechanism I and the feeding mechanism II are roller conveyors, and adjacent rollers of the roller conveyor are connected by a synchronous belt.

[0026] Provided is a method for automatically bonding a pantograph slider, including the above-mentioned pantograph slider automatic bonding device, and:

[0027] S1. Place the processed carbon material and aluminum bracket on the carbon material support plate and aluminum bracket support plate respectively. Place the carbon material support plate and aluminum bracket support plate on the feeding structure II and feeding mechanism I respectively. Start the feeding structure II to convey the carbon material support plate to the glue application position. Start the feeding mechanism I to convey the aluminum bracket support plate to the robotic arm picking position.

[0028] S2. The control system controls the six-axis robotic arm to start, and applies glue to the bonding surface of the carbon material through the glue spraying head.

[0029] S3. After the glue application is completed, the six-axis robotic arm controls the manipulator to grab the aluminum bracket from below the aluminum bracket, and controls the bonding surface of the aluminum bracket and the carbon material to be aligned. After alignment, the manipulator is withdrawn.

[0030] S4. Start the clamping device, and the linear propulsion frame moves towards the direction close to the feeding structure II until the U-shaped frame is clamped on the combination of the aluminum bracket and the carbon material.

[0031] S5. The linear slide moves forward under the control of the drive mechanism until the lever is directly below the control handle. The turntable rotates under the control of the drive cylinder, and then drives the control handle to rotate through the lever, thereby realizing the locking of the aluminum bracket and the carbon material.

[0032] S6. The pneumatic gripper releases the U-shaped frame, the linear slide moves backward, and the linear propulsion frame moves away from the feeding structure II.

[0033] S7. Start the feeding structure II to convey the carbon material support plate to the next process.

[0034] The beneficial effects of the present invention compared with the prior art are as follows:

[0035] 1. The present invention realizes the automatic feeding of the carbon material and the aluminum support through two feeding mechanisms, and fixes the working position of the carbon material support plate through the position limiter, thereby facilitating the six-axis robotic arm to identify the glue application position of the carbon material support plate and perform automatic glue application, realizing the automated operation of glue application. A manipulator adapted to the aluminum bracket is provided on the six-axis robotic arm, which can transfer the aluminum bracket on the aluminum bracket support plate to the carbon material to realize automatic bonding.

[0036] 2. The present invention is provided with a clamping device on one side of the carbon material feeding mechanism, which can automatically clamp the bonded aluminum bracket and carbon material. The clamping device can hold multiple clamping fixtures at the same time to prevent the error of manual clamping.

[0037] 3. The present invention can automatically realize the glue application and bonding operations, with simple operation, low cost, time-saving and labor-saving, and high consistency of finished products. Brief Description of the Drawings

[0038] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0039] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 It is a schematic diagram of the structure of the feeding mechanism II;

[0041] Figure 3 It is Figure 2 a partial enlarged view of A in

[0042] Figure 4 It is a schematic diagram of the structure of the feeding mechanism I;

[0043] Figure 5 It is Figure 4 a partial enlarged view of B in

[0044] Figure 6 It is a schematic diagram of the structure of the manipulator.

[0045] In the figure: 10 - feeding mechanism I, 11 - adjustable guide rod, 12 - linear drive mechanism, 13 - limit block, 14 - positioning block, 20 - aluminum bracket support plate, 21 - aluminum bracket, 22 - bottom plate, 23 - support arm, 24 - push-pull type quick clamp, 30 - feeding mechanism II, 40 - carbon material support plate, 41 - carbon material, 50 - six-axis robotic arm, 51 - manipulator, 60 - glue spraying head, 70 - clamping device, 71 - clamping fixture, 711 - C-shaped frame, 712 - sliding rod, 713 - control handle, 714 - connecting rod, 715 - conical spring, 72 - linear propulsion frame, 73 - mounting frame, 74 - pneumatic gripper, 75 - linear slide plate, 76 - rotary drive, 761 - hinge seat, 762 - turntable, 763 - lever, 764 - drive cylinder. Specific Embodiments

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0047] Embodiment 1:

[0048] As Figures 1 to 6As shown in the figure, a pantograph slide automatic bonding device includes: a feeding mechanism I 10 for feeding the aluminum bracket 21 and a feeding mechanism II 30 for feeding the carbon material 41. An aluminum bracket support plate 20 is provided on the feeding mechanism I 10. The aluminum bracket support plate 20 moves under the drive of the feeding mechanism I 10. An aluminum bracket 21 is placed at the upper end of the aluminum bracket support plate 20. The aluminum bracket support plate 20 includes a bottom plate 22, a support arm 23 and a push-pull type quick clamp 24. The support arm 23 is fixedly arranged on the bottom plate 22. The push-pull type quick clamp 24 is arranged on the support arm 23 and corresponds to the placement position of the aluminum bracket 21. When feeding the aluminum bracket, the aluminum bracket needs to be locked by the push-pull type quick clamp 24. An unlocking mechanism cooperating with the push-pull type quick clamp 24 is arranged on one side of the feeding structure I 10.

[0049] The feeding mechanism II 30 is arranged on one side of the feeding mechanism I 10 and in the same direction as the feeding mechanism I 10. A carbon material support plate 40 is arranged on the feeding mechanism II 30 and is driven by the feeding mechanism II 30. A carbon material 41 is placed at the upper end of the carbon material support plate 40. The feeding mechanism I 10 and the feeding mechanism II 30 preferably adopt roller conveyors. The adjacent rollers of the roller conveyors are connected by synchronous belts. In order to guide the movement of the aluminum bracket support plate 20 or the carbon material support plate 40, adjustable guide rods 11 are arranged on both sides of the roller conveyors. Since the gap between the two adjustable guide rods 11 is adjustable, it can be applied to support plates of different sizes.

[0050] In order to position the glue application position of the carbon material and the working position of the aluminum bracket, a stopper is arranged on one side of the feeding mechanism I 10 and / or the feeding mechanism II 30. The stopper includes a linear driving mechanism 12 and a limit block 13. The limit block 13 is arranged at the working end of the linear driving mechanism 12. The movement direction of the linear driving mechanism 12 is perpendicular to the driving direction of the feeding mechanism I 10 or the feeding mechanism II 30. A positioning block 14 is arranged on the other side of the feeding mechanism I 10 and / or the feeding mechanism II 30 corresponding to the position of the stopper. When the support plate with the carbon material 41 or the aluminum bracket reaches the designed position, the linear driving mechanism 12 drives the limit block 13 to move towards the positioning block and cooperate with the positioning block 14 to realize the positioning of the support plate.

[0051] A six-axis robotic arm 50 is arranged between the feeding mechanism I 10 and the feeding mechanism II 30. The six-axis robotic arm 50 adopts an existing robotic arm with visual recognition. A manipulator 51 capable of clamping the aluminum bracket 21 is arranged at the end of the six-axis robotic arm 50. The aluminum bracket can be clamped by the manipulator 51 and automatically combined with the carbon material. The six-axis robotic arm 50 is connected with a control system.

[0052] A glue spray head 60 is fixedly provided on the manipulator 51 , and the glue spray head 60 is connected to an automatic glue coating machine that can automatically feed materials, and the automatic glue coating machine adopts an existing glue coating machine.

[0053] In order to fix the carbon material and the aluminum bracket after bonding, a clamping device 70 is further provided on one side of the feeding mechanism II30. The clamping device 70 is provided with a clamping fixture 71 which can clamp the assembly of the carbon material 41 and the aluminum bracket 21. The clamping fixture 71 includes a V-shaped frame 711, a slide bar 712 and a control handle 713. The slide bar 712 is slidably set at the upper end of the V-shaped frame 711 and passes through the upper arm of the V-shaped frame 711. The control handle 713 is hinged at the upper end of the slide bar 712. The control handle 713 and the V-shaped frame 711 are hinged with the same connecting rod 714. The slide bar 712, the control handle 713, the connecting rod 714 and the V-shaped frame 711 form a quick clamping mechanism. In order to control the clamping force within an appropriate range, the lower end of the slide bar 712 is connected with a conical spring 715 to prevent damage to the carbon material.

[0054] The clamping device 70 includes a linear propulsion frame 72, a mounting frame 73, a pneumatic clamp 74, a linear slide 75 and a rotary drive 76. The linear propulsion frame 72 is arranged on the side of the feeding mechanism II 30 away from the six-axis robot arm 50, and the linear propulsion frame 72 can move linearly in a direction perpendicular to the feeding mechanism II 30; the mounting frame 73 is fixedly arranged on the linear propulsion frame 72 and moves synchronously with the linear propulsion frame 72, and the pneumatic clamp 74 is arranged on the mounting frame 73 and can clamp the 匚-shaped frame 711; the linear slide 75 is slidably arranged on the mounting frame 73, and a driving mechanism that can drive the linear slide 75 to move forward and backward is arranged between the linear slide 75 and the mounting frame 73; the rotary drive The device 76 includes an articulated seat 761, a turntable 762 and a lever 763. The articulated seat 761 is fixedly set on the linear slide 75, and the turntable 762 is rotatably set on the articulated seat 761. The turntable 762 is fixedly connected to the side of the pneumatic clamp 74 with the lever 763 that cooperates with the control handle 713. An articulated rod is eccentrically set on the other side of the turntable 762. A driving cylinder 764 is set between the articulated rod and the linear slide 75. When the driving cylinder 764 is extended or retracted, the turntable 762 is driven to rotate through the articulated rod, and then the lever 763 is driven to rotate, so as to realize the toggling of the control handle 713, and then realize the clamping of the carbon material and the aluminum bracket by the clamping fixture 71.

[0055] Embodiment 2:

[0056] A pantograph slide automatic bonding method, comprising the above-mentioned pantograph slide automatic bonding device, specifically comprising the following steps:

[0057] S1. Place the processed carbon material 41 and the aluminum bracket 21 on the carbon material support plate 40 and the aluminum bracket support plate 20 respectively. The concave surface of the carbon material 41 is facing upward, and the convex surface of the aluminum bracket is facing upward. Place the carbon material support plate 40 and the aluminum bracket support plate 20 on the feeding structure II 30 and the feeding mechanism I 10 respectively. Start the feeding structure II 30 to convey the carbon material support plate 40 to the glue application position, and start the feeding mechanism I 10 to convey the aluminum bracket support plate 20 to the robotic arm picking position.

[0058] S2. The control system controls the six-axis robotic arm 50 to start. The six-axis robotic arm 50 automatically identifies the glue application position of the carbon material 41 and applies glue to the bonding surface of the carbon material 41 through the glue spraying head 60.

[0059] S3. After the glue application is completed, the six-axis robotic arm 50 controls the robotic hand 51 to grab the aluminum bracket 21 from below the aluminum bracket 21. The unlocking mechanism unlocks the push-pull type quick clamp 24 and controls the bonding surface of the aluminum bracket 21 to coincide with that of the carbon material 41. After coincidence, the robotic hand 51 is withdrawn. The unlocking mechanism includes a translation mechanism, a lifting mechanism and a rotating lever. The lifting mechanism is arranged on the moving table of the translation mechanism, and the rotating lever is arranged on the lifting table of the lifting mechanism. First, the translation mechanism drives the moving table to move towards the aluminum bracket 21 and makes the rotating lever located directly below the push-pull type quick clamp 24. The lifting mechanism rises so that the rotating lever contacts the control rod of the push-pull type quick clamp 24, and the rotating lever rotates automatically to realize the unlocking of the push-pull type quick clamp 24.

[0060] S4. Start the clamping device 70. The linear propulsion frame 72 moves towards the direction close to the feeding structure II 30 until the U-shaped frame 711 is clamped on the combination of the aluminum bracket 21 and the carbon material 41.

[0061] S5. The linear slide plate 75 moves forward under the control of the driving mechanism until the lever 764 is directly below the control handle 713. The turntable 762 rotates under the control of the driving cylinder 765, and then drives the control handle 713 to rotate through the lever 763, so as to realize the locking of the aluminum bracket 21 and the carbon material 41.

[0062] S6. The pneumatic gripper 74 releases the U-shaped frame 711. The linear slide plate 75 moves backward, and the linear propulsion frame 72 moves away from the feeding structure II 30.

[0063] S7. Start the feeding structure II 30 to convey the carbon material support plate 20 to the next process.

[0064] Only the preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention, and all such changes should be included within the protection scope of the present invention.

Claims

1. An automatic bonding device for a pantograph slider, characterized in that, Including: Feeding mechanism I (10); Aluminum bracket support plate (20), which is arranged on the feeding mechanism I (10) and driven by the feeding mechanism I (10). An aluminum bracket (21) is placed on the upper end of the aluminum bracket support plate (20); Feeding mechanism II (30), which is arranged on one side of the feeding mechanism I (10); Carbon material support plate (40), which is arranged on the feeding mechanism II (30) and driven by the feeding mechanism II (30). Carbon material (41) is placed on the upper end of the carbon material support plate (40); Six-axis robotic arm (50), which is arranged between the feeding mechanism I (10) and the feeding mechanism II (30). A manipulator (51) capable of clamping the aluminum bracket (21) is arranged at the end of the six-axis robotic arm (50). The six-axis robotic arm (50) is connected with a control system; Glue spraying head (60), which is fixedly arranged on the manipulator (51). The glue spraying head (60) is connected with an automatic glue applicator; Clamping device (70), which is arranged on one side of the feeding mechanism II (30). A clamping fixture (71) capable of clamping the assembly of the carbon material (41) and the aluminum bracket (21) is arranged on the clamping device (70); The clamping fixture (71) includes a C-shaped frame (711), a sliding rod (712) and a control handle (713). The sliding rod (712) is slidably arranged on the upper end of the C-shaped frame (711) and penetrates through the upper arm of the C-shaped frame (711). The control handle (713) is hinged at the upper end of the sliding rod (712). A same connecting rod (714) is hinged between the control handle (713) and the C-shaped frame (711). A quick clamping mechanism is formed by the sliding rod (712), the control handle (713), the connecting rod (714) and the C-shaped frame (711). A conical spring (715) is connected to the lower end of the sliding rod (712). The clamping device (70) includes a linear propulsion frame (72), a mounting frame (73), a pneumatic gripper (74), a linear slide plate (75) and a rotary driver (76). The linear propulsion frame (72) is arranged on the side of the feeding mechanism II (30) away from the six-axis robotic arm (50). The linear propulsion frame (72) can move linearly in a direction perpendicular to the feeding mechanism II (30); The mounting frame (73) is fixedly arranged on the linear propulsion frame (72) and moves synchronously with the linear propulsion frame (72). The pneumatic gripper (74) is arranged on the mounting frame (73) and can clamp the C-shaped frame (711); The linear slide plate (75) is slidably arranged on the mounting frame (73). A driving mechanism capable of driving the linear slide plate (75) to move back and forth is arranged between the linear slide plate (75) and the mounting frame (73); The rotary driver (76) includes a hinge seat (761), a turntable (762) and a lever (763). The hinge seat (761) is fixedly arranged on the linear slide plate (75). The turntable (762) is rotatably arranged on the hinge seat (761). A lever (763) matched with the control handle (713) is fixedly connected to one side of the turntable (762) close to the pneumatic gripper (74). An articulated rod is eccentrically arranged on the other side of the turntable (762). A driving cylinder (764) is arranged between the articulated rod and the linear slide plate (75).

2. The pantograph slider automatic bonding device according to claim 1, characterized in that: The feeding mechanism I (10) and the feeding mechanism II (30) are both roller conveyors, and adjustable guide rods (11) are arranged on both sides of the roller conveyor.

3. The pantograph slider automatic bonding device according to claim 2, characterized in that: A stopper is arranged on one side of the feeding mechanism I (10) and / or the feeding mechanism II (30). The stopper includes a linear driving mechanism (12) and a limiting block (13). The limiting block (13) is arranged at the working end of the linear driving mechanism (12), and the moving direction of the linear driving mechanism (12) is perpendicular to the driving direction of the feeding mechanism I (10) or the feeding mechanism II (30); On the other side of the feeding mechanism I (10) and / or the feeding mechanism II (30), a positioning block (14) is arranged corresponding to the position of the stopper.

4. The pantograph slider automatic bonding device according to claim 3, characterized in that: The aluminum bracket support plate (20) includes a bottom plate (22), a support arm (23) and a push-pull type quick clamp (24). The support arm (23) is fixedly arranged on the bottom plate (22), and the push-pull type quick clamp (24) is arranged on the support arm (23) and corresponds to the placement position of the aluminum bracket (21).

5. The pantograph slide automatic bonding device according to claim 4, characterized in that: An unlocking mechanism cooperating with the push-pull type quick clamp (24) is arranged on one side of the feeding mechanism I (10).

6. The pantograph slider automatic bonding device according to claim 1, characterized in that: The feeding mechanism I (10) and the feeding mechanism II (30) are both roller conveyors, and adjacent rollers of the roller conveyor are connected by a synchronous belt.

7. An automatic bonding method for a pantograph slide plate, including an automatic bonding device for a pantograph slide plate as described in claim 5, characterized in that, Including: S1. Place the processed carbon material (41) and the aluminum bracket (21) on the carbon material support plate (40) and the aluminum bracket support plate (20) respectively. Place the carbon material support plate (40) and the aluminum bracket support plate (20) on the feeding structure II (30) and the feeding mechanism I (10) respectively. Start the feeding structure II (30) to convey the carbon material support plate (40) to the gluing position. Start the feeding mechanism I (10) to convey the aluminum bracket support plate (20) to the robotic arm picking position; S2. The control system controls the six-axis robotic arm (50) to start, and applies glue to the bonding surface of the carbon material (41) through the glue spraying head (60); S3. After the glue application is completed, the six-axis robotic arm (50) controls the manipulator (51) to grab the aluminum bracket (21) from below the aluminum bracket (21), and controls the bonding surface of the aluminum bracket (21) to coincide with that of the carbon material (41). After coincidence, withdraw the manipulator (51); S4. Start the clamping device (70), and the linear propulsion frame (72) moves towards the direction close to the feeding mechanism II (30) until the U-shaped frame (711) is clamped on the combination of the aluminum bracket (21) and the carbon material (41); S5. The linear slide plate (75) moves forward under the control of the driving mechanism until the dial rod (763) is directly below the control handle (713). The turntable (762) rotates under the control of the driving cylinder (764), and then drives the control handle (713) to rotate through the dial rod (763), thereby realizing the locking of the aluminum bracket (21) and the carbon material (41); S6. The pneumatic gripper (74) releases the U-shaped frame (711), the linear slide plate (75) moves backward, and the linear propulsion frame (72) moves away from the feeding mechanism II (30); S7. Start the feeding mechanism II (30) to convey the carbon material support plate (40) to the next process.

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