Polytetrafluoroethylene gasket laser cutting device and method

Abstract

The invention discloses a polytetrafluoroethylene gasket laser cutting device and method, and relates to the technical field of laser cutting. The conveying table is located at the outer end of the workbench. The overturning mechanism comprises an overturning bridge, an inclined plate and two side square seats, the side square seats are fixedly arranged at the top of the workbench, the bottom end of one side of the overturning bridge is rotationally connected to one side square seat, the bottom end of the other side of the overturning bridge is fixedly connected with the inner side of the inclined plate, the inclined plate is obliquely and upwards arranged in the direction where the channel is located, and the outer side of the inclined plate is rotationally connected to the other side square seat; a reset spring is arranged in the side square seat and is used for keeping the overturning bridge in a vertical state; the linear stroke mechanism is arranged at the top of the working table, is connected with the regulation and control frame and is used for moving the regulation and control frame towards the conveying table, so that the overturning bridge is downwards overturned to the conveying table at intervals; the main plate is connected to the sliding block through an L-shaped support and located at the outer end of the channel; and the laser cutting equipment is fixedly arranged on the workbench. According to the scheme, the number of power sources of the laser cutting device can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting, and particularly relates to a laser cutting device and method for polytetrafluoroethylene gaskets. Background Art

[0002] Figure 12 A schematic diagram of a printed circuit board is shown, which includes a first core board, a first prepreg, a second core board, a second prepreg, a third core board, a third prepreg, and a fourth core board from bottom to top. A resist film is provided at a specific position on the top surface of the first core board, and blind vias are provided at specific positions on the second core board, the second prepreg, and the third core board, and polytetrafluoroethylene gaskets are filled in the blind vias.

[0003] In the prior art, the method for obtaining polytetrafluoroethylene gaskets is as follows: Workers place the polytetrafluoroethylene original board on the cutting table, and the clamping mechanism adjusts the posture and limits the position of the polytetrafluoroethylene original board; the linear travel mechanism moves the laser cutting device to specific positions along the long axis direction of the polytetrafluoroethylene original board in turn, and the laser cutting device automatically cuts the polytetrafluoroethylene original board to obtain multiple polytetrafluoroethylene gaskets; after the clamping mechanism releases the limit, the pushing mechanism is used to push the multiple polytetrafluoroethylene gaskets away from the clamping mechanism. In the above process, at least three power sources are required for the clamping mechanism, the linear travel mechanism, and the pushing mechanism. The present invention provides a new laser cutting device that can reduce the number of power sources. Summary of the Invention

[0004] To solve the deficiencies of the prior art, the present invention provides a laser cutting device and method for polytetrafluoroethylene gaskets, which can reduce the number of power sources.

[0005] To achieve the purpose of the present invention, the following scheme is proposed: A laser cutting device for polytetrafluoroethylene gaskets includes a cutting table, a conveying table, a linear travel mechanism, a main board, a flipping mechanism, a regulating frame, and a laser cutting device.

[0006] The cutting table is provided on the top of the workbench. Cross plates are provided on both sides of the cutting table, and a channel is formed between the two cross plates for placing the polytetrafluoroethylene original board; The conveying table is located at the outer end of the workbench; The flipping mechanism is located between the channel and the conveying table and includes a flipping bridge, an inclined plate, and two side seats. The side seats are fixedly provided on the top of the workbench. The bottom end of one side of the flipping bridge is rotatably connected to one of the side seats, the bottom end of the other side of the flipping bridge is fixedly connected to the inner side of the inclined plate, the inclined plate is inclined upward in the direction of the channel, and the outer side of the inclined plate is rotatably connected to the other side seat. A return spring is provided in the side seat to keep the flipping bridge in a vertical state; The regulating frame includes a slider, a rake-shaped bracket provided at the bottom of the slider, and a plurality of regulating plates provided at the bottom of the rake-shaped bracket. The linear travel mechanism is provided at the top of the workbench and is connected to the slider for moving the regulating frame in the direction of the conveying table. The regulating plates are in a horizontal state. When each regulating plate acts on the inclined plate in sequence, it is used to turn the turnover bridge downward at intervals to the conveying table. After the turnover bridge turns downward, its position is lower than the cutting table. The main board is connected to the slider through an L-shaped bracket. The main board is located at the outer end of the channel. When the main board pushes the polytetrafluoroethylene original board and makes its end face contact the turnover bridge, one of the regulating plates just contacts the inclined plate. The laser cutting device is fixedly provided on the workbench for cutting out polytetrafluoroethylene gaskets.

[0007] A laser cutting method for polytetrafluoroethylene gaskets, using the above-mentioned laser cutting device for polytetrafluoroethylene gaskets, includes the following steps: S1. Place the polytetrafluoroethylene original board in the channel on the cutting table. S2. The linear travel mechanism moves the regulating frame in the direction of the conveying table. At the same time, the main board pushes the polytetrafluoroethylene original board. When the end face of the polytetrafluoroethylene original board contacts the turnover bridge, the first regulating plate just contacts the inclined plate, and the linear travel mechanism stops working. S3. The laser cutting device cuts out the first polytetrafluoroethylene gasket. S4. The linear travel mechanism continues to work. The first regulating plate acts on the inclined plate to turn the turnover bridge downward to the conveying table. During this process, the main board pushes the polytetrafluoroethylene original board to cause the first polytetrafluoroethylene gasket to slide down to the conveying table through the turnover bridge; the first regulating plate disengages from the inclined plate, and the turnover bridge returns to the vertical state under the action of the return spring. S5. Repeat steps S2 to S4 until the last polytetrafluoroethylene gasket slides down to the conveying table.

[0008] The beneficial effects of the present invention are as follows: 1. The structure is ingenious. Only using the motor as a power source, it can not only complete the restriction of the polytetrafluoroethylene original board, but also push the polytetrafluoroethylene original board to the laser cutting device for cutting. After cutting out the polytetrafluoroethylene gasket, it can also automatically push the polytetrafluoroethylene gasket away from the cutting table.

[0009] 2. The turnover bridge has two functions: restricting the polytetrafluoroethylene original board on the cutting table to determine the size of the polytetrafluoroethylene gasket; when the turnover bridge turns downward to the conveying table, the turnover bridge at this time plays a bridging role and can make the polytetrafluoroethylene gasket slide down to the conveying table. Description of the Drawings

[0010] Figure 1 Shows the structure diagram of the laser cutting device; Figure 2 Shows the left view of the laser cutting device; Figure 3 Shows a top view of the laser cutting device; Figure 4 Shows a state diagram of the first regulating plate just contacting the inclined plate; Figure 5 Shows a state diagram of the turning bridge turning down to the conveying table; Figure 6 Shows a state diagram of the first regulating plate about to separate from the inclined plate; Figure 7 Shows a state diagram of the first regulating plate separating from the inclined plate and the turning bridge turning up and resetting; Figure 8 Shows a structural diagram of the outer plate and the vertical rod; Figure 9 Shows a schematic diagram of the connection relationship of the movable cross plate, inner plate, outer plate, and vertical rod; Figure 10 Shows a state diagram of the vertical rod pressing against the outer wall of the outer plate; Figure 11 Shows a flow chart of the laser cutting method; Figure 12 Shows a schematic diagram of a printed circuit board; Reference numerals: cutting table - 1, cross plate - 11, workbench - 12, round rod - 13, compression spring - 131, inner plate - 14, outer plate - 15, trapezoidal notch - 151, conveying table - 2, linear travel mechanism - 3, motor - 31, lead screw - 32, guide rod - 33, main board - 4, L-shaped bracket - 41, vertical rod - 42, stabilizing block - 43, turning mechanism - 5, turning bridge - 51, side plate - 511, inclined plate - 52, side seat - 53, regulating frame - 6, slider - 61, rake-shaped bracket - 62, regulating plate - 63, laser cutting equipment - 7. Detailed implementation manners

[0011] Embodiment 1 As Figure 1 shown, this embodiment provides a laser cutting device for polytetrafluoroethylene gaskets, including a cutting table 1, a conveying table 2, a linear travel mechanism 3, a main board 4, a turning mechanism 5, a regulating frame 6, and a laser cutting equipment 7.

[0012] Specifically, the cutting table 1 is arranged on the top of the workbench 12, the long axis direction of the cutting table 1 is the same as the long axis direction of the workbench 12, and cross plates 11 are arranged on both sides of the cutting table 1. A channel is formed between the two cross plates 11, and the polytetrafluoroethylene original plate is placed in the channel.

[0013] Specifically, the conveying table 2 is located at the outer end of the workbench 12, and the tabletop of the conveying table 2 is lower than the tabletop of the cutting table 1.

[0014] Specifically, the turning mechanism 5 is located between the channel and the conveying table 2, asFigures 1-3 As shown in the figure, the flipping mechanism 5 includes a flipping bridge 51, an inclined plate 52, and two side seats 53. The side seats 53 are fixedly arranged on the top of the workbench 12. The bottom end of one side of the flipping bridge 51 is rotatably connected to one of the side seats 53. The bottom end of the other side of the flipping bridge 51 is fixedly connected to the inner side of the inclined plate 52. The inclined plate 52 is inclined upward in the direction of the channel. The outer side of the inclined plate 52 is rotatably connected to the other side seat 53. When the flipping bridge 51 and the inclined plate 52 are acted upon by an external force, they can flip towards the conveying table 2 or towards the channel. A return spring is arranged in the side seat 53 to keep the flipping bridge 51 in a vertical state. When the flipping bridge 51 is in a vertical state, the flipping bridge 51 is in close contact with the end face of the cutting table 1.

[0015] Specifically, as Figure 2 shown in the figure, the regulating frame 6 includes a slider 61, a rake-shaped bracket 62, and a plurality of regulating plates 63 arranged in an array. The rake-shaped bracket 62 is arranged at the bottom of the slider 61. A plurality of regulating plates 63 are arranged at the bottom of the rake-shaped bracket 62. The linear travel mechanism 3 is arranged on the top of the workbench 12. The regulating frame 6 is located above the workbench 12. The linear travel mechanism 3 is connected to the slider 61 to move the regulating frame 6 towards the conveying table 2. The regulating plates 63 are in a horizontal state, and the direction of the array of the plurality of regulating plates 63 is consistent with the long axis direction of the workbench 12.

[0016] When the linear travel mechanism 3 moves the regulating frame 6 towards the conveying table 2, it is used to make each regulating plate 63 act on the inclined plate 52 at intervals in turn; when the regulating plate 63 acts on the inclined plate 52, it is used to turn the flipping bridge 51 down to the conveying table 2 (the state is as Figure 5 shown in the figure). After the flipping bridge 51 is turned down, its position is lower than that of the cutting table 1.

[0017] As Figure 2 shown in the figure, the specific implementation method of the linear travel mechanism 3 is: including a motor 31, a lead screw 32, and a guide rod 33. The lead screw 32 is rotatably arranged between two support frames. The two ends of the guide rod 33 are respectively fixedly arranged on the two support frames. The lead screw 32 and the guide rod 33 are parallel to each other. The guide rod 33 is located above the lead screw 32. The motor 31 is arranged on one of the support frames, and the output shaft of the motor 31 is used to drive the lead screw 32. The slider 61 is threadedly connected to the lead screw 32, and the slider 61 is slidably matched with the guide rod 33.

[0018] Specifically, as Figure 1 、 Figure 2 shown in the figure, the main board 4 is connected to the slider 61 through an L-shaped bracket 41. The main board 4 is located at the outer end of the channel. The bottom surface of the main board 4 is in close contact with the top surface of the cutting table 1. When the linear travel mechanism 3 moves the regulating frame 6 towards the conveying table 2, the main board 4 and the L-shaped bracket 41 will also move with the slider 61. During the movement of the main board 4, it is used to push the polytetrafluoroethylene original board towards the flipping bridge 51; when the end face of the polytetrafluoroethylene original board just contacts the flipping bridge 51, one of the regulating plates 63 just contacts the inclined plate 52 (the state is asFigure 4 As shown), that is, this solution completes the restriction of the polytetrafluoroethylene original plate through two horizontal plates 11, the main board 4 and the flip bridge 51.

[0019] Specifically, Figure 1 As shown, the laser cutting device 7 is fixed on the workbench 12 and is closer to the flip bridge 51 . The laser cutting device 7 is used to cut a polytetrafluoroethylene gasket in the area between the laser cutting device 7 and the flip bridge 51 .

[0020] When in use, place the polytetrafluoroethylene original plate in the channel on the cutting table 1; the linear travel mechanism 3 moves the regulating frame 6 toward the conveying table 2, and the main board 4 pushes the polytetrafluoroethylene original plate. When the end face of the polytetrafluoroethylene original plate just contacts the flip bridge 51, the first regulating plate 63 just contacts the inclined plate 52 (the state is as follows Figure 4 As shown in the figure, the linear travel mechanism 3 stops working. Note that at this time, the end surface of the polytetrafluoroethylene original plate only contacts the flip bridge 51 and does not cause the flip bridge 51 to flip outward. The laser cutting device 7 cuts out the first polytetrafluoroethylene gasket. The linear travel mechanism 3 continues to work, and the first regulating plate 63 acts on the inclined plate 52 to make the flip bridge 51 flip down to the conveying platform 2 (the state is as shown in the figure). Figure 5 As shown in FIG. 1 ), during the downward turning of the flip bridge 51, the main board 4 will continue to push the polytetrafluoroethylene original board. Figure 5 In the process, the flip bridge 51 remains in the flipped-down state, and the first polytetrafluoroethylene gasket has not yet slid down to the flip bridge 51; the linear travel mechanism 3 continues to work. Figure 6 In the state, the flip bridge 51 remains in the flipped state, the first polytetrafluoroethylene gasket has slid down to the conveying platform 2 through the flip bridge 51, and the first regulating plate 63 is about to be separated from the inclined plate 52; the linear travel mechanism 3 continues to work. Figure 7 In this state, the first regulating plate 63 has been separated from the inclined plate 52, and the flip bridge 51 has returned to the vertical state under the action of the reset spring. At this time, the end face of the remaining polytetrafluoroethylene original plate has not yet contacted the flip bridge 51, that is, the second regulating plate 63 has not yet contacted the inclined plate 52; the linear travel mechanism 3 continues to work, repeating the above process until the last polytetrafluoroethylene gasket slides to the conveyor table 2.

[0021] Three points are explained here: First, the flip bridge 51 in this scheme has two functions: ① to limit the polytetrafluoroethylene original plate on the cutting table 1, so as to determine the size of the polytetrafluoroethylene gasket; ② the flip bridge 51 flips down to the conveying table 2, at which time the flip bridge 51 acts as a bridge, allowing the polytetrafluoroethylene gasket to slide to the conveying table 2.

[0022] Second, in order to make the polytetrafluoroethylene gasket slide onto the conveyor 2 more smoothly, Figure 3As shown, the side of the turning bridge 51 facing the cutting table 1 is provided with two side plates 511, and the end of the cutting table 1 is located between the two side plates 511. Figure 5 In the embodiment, the turning bridge 51 is turned down to the conveying platform 2, and the side panels 511 play the role of a guardrail.

[0023] Third, this solution only uses the motor 31 as a power source, which can not only complete the restriction of the polytetrafluoroethylene original plate, but also push the polytetrafluoroethylene original plate to the laser cutting equipment 7 for cutting. After the polytetrafluoroethylene gasket is cut, the polytetrafluoroethylene gasket can be automatically pushed away from the cutting table 1.

[0024] In the above scheme, the two horizontal plates 11 are fixedly arranged. In order to more conveniently place the polytetrafluoroethylene original plate between the two horizontal plates 11, it is best to fix the first horizontal plate 11 and slide the second horizontal plate 11. The specific implementation method is as follows: Figure 8 , Figure 9 As shown, the outer wall of the second horizontal plate 11 is provided with two round rods 13, and the outer ends of the two round rods 13 pass through the inner plate 14 and are connected to the outer plate 15. The inner plate 14 is fixedly arranged on the top of the workbench 12, and the bottom surface of the outer plate 15 is close to the top surface of the workbench 12. A compression spring 131 is arranged on the outer periphery of the round rod 13, and the two ends of the compression spring 131 are respectively connected to the second horizontal plate 11 and the inner plate 14. A trapezoidal notch 151 is arranged on the outer wall of the outer plate 15 facing one end of the main plate 4, and a vertical rod 42 is arranged at the bottom of the L-shaped bracket 41. The vertical rod 42 is located at the plane of the trapezoidal notch 151. When the main plate 4 moves toward the flip bridge 51, the vertical rod 42 squeezes the inclined surface of the trapezoidal notch 151 to move the second horizontal plate 11 toward the cutting table 1. When the vertical rod 42 is close to the outer wall of the outer plate 15, the polytetrafluoroethylene original plate is restricted between the two horizontal plates 11 and is allowed to slide (the state is as shown in FIG. Figure 10 That is to say, this solution also utilizes the motor 31 as a power source to adjust the distance between the two horizontal plates 11.

[0025] Two points are explained here: First, for a complete polytetrafluoroethylene original plate that has not yet been cut, before the end surface of the polytetrafluoroethylene original plate contacts the turning bridge 51 , the second transverse plate 11 must have been moved to the cutting table 1 and the second transverse plate 11 must be close to the side wall of the cutting table 1 .

[0026] Second, in order to improve the stability of the main board 4, the L-shaped bracket 41 and the vertical rod 42 during the movement, as shown in FIG. Figure 8 As shown, a stabilizing block 43 is provided at the bottom of the L-shaped bracket 41 , the stabilizing block 43 is slidably matched with the guide rod 33 , and the vertical rod 42 is provided at the bottom of the stabilizing block 43 .

[0027] Example 2 like Figure 11As shown in the figure, this embodiment provides a method for laser cutting a polytetrafluoroethylene gasket, using the polytetrafluoroethylene gasket laser cutting device of Embodiment 1, including the following steps: S1. Place the polytetrafluoroethylene original plate in the channel on the cutting table 1.

[0028] S2. The linear travel mechanism 3 moves the adjustment frame 6 towards the conveying table 2, and at the same time, the main board 4 pushes the polytetrafluoroethylene original plate. Before the end face of the polytetrafluoroethylene original plate contacts the flipping bridge 51, that is, before the first adjustment plate 63 contacts the inclined plate 52, the vertical rod 42 will first squeeze the outer plate 15, causing the second cross plate 11 to move towards the cutting table 1 and making the second cross plate 11 closely adhere to the side wall of the cutting table 1; then when the end face of the polytetrafluoroethylene original plate contacts the flipping bridge 51, the first adjustment plate 63 just contacts the inclined plate 52 (the state is as Figure 4 shown), and at this time, the linear travel mechanism 3 stops working.

[0029] S3. The laser cutting device 7 cuts out the first polytetrafluoroethylene gasket.

[0030] S4. The linear travel mechanism 3 continues to work, and the first adjustment plate 63 acts on the inclined plate 52 to make the flipping bridge 51 turn down to the conveying table 2 (the state is as Figure 5 、 Figure 6 shown), and the flipping bridge 51 maintains the turned-down state for a period of time. During this process, the main board 4 pushes the polytetrafluoroethylene original plate to cause the first polytetrafluoroethylene gasket to slide down to the conveying table 2 through the flipping bridge 51; the first adjustment plate 63 disengages from the inclined plate 52, and the flipping bridge 51 returns to the vertical state under the action of the return spring (the state is as Figure 7 shown); S5. Repeat steps S2 to S4 until the last polytetrafluoroethylene gasket slides down to the conveying table 2; S6. The motor 31 in the linear travel mechanism 3 runs in the reverse direction to move the adjustment frame 6 away from the conveying table 2 until the adjustment frame 6 is reset to the state in Figure 2 .

[0031] The above embodiments are only used to illustrate the technical ideas and features of the present invention, and do not represent the only or limit the present invention. Those skilled in the art should understand that without departing from the scope of the present invention, various changes or equivalent replacements made to the present invention all fall within the scope of protection of the present invention.

Claims

1. A polytetrafluoroethylene gasket laser cutting device, characterized in that: It comprises a cutting table (1), a conveying table (2), a linear travel mechanism (3), a main board (4), a turning mechanism (5), a regulating frame (6), and a laser cutting device (7); The cutting table (1) is arranged on the top of the workbench (12), and horizontal plates (11) are arranged on both sides of the cutting table (1). A channel is formed between the two horizontal plates (11) for placing the polytetrafluoroethylene original plate; The conveying platform (2) is located at the outer end of the working platform (12); The turning mechanism (5) is located between the passage and the conveying platform (2), and comprises a turning bridge (51), an inclined plate (52) and two side seats (53). The side seats (53) are fixedly arranged on the top of the workbench (12). The bottom end of one side of the turning bridge (51) is rotatably connected to one of the side seats (53). The bottom end of the other side of the turning bridge (51) is fixedly connected to the inner side of the inclined plate (52). The inclined plate (52) is arranged to be inclined upward in the direction of the passage. The outer side of the inclined plate (52) is rotatably connected to the other side seat (53). A return spring is arranged in the side seat (53) to keep the turning bridge (51) in a vertical state. The regulating frame (6) comprises a slider (61), a rake-shaped bracket (62) arranged at the bottom of the slider (61), and a plurality of regulating plates (63) arranged at the bottom of the rake-shaped bracket (62). The linear travel mechanism (3) is arranged on the top of the workbench (12), connected to the slider (61), and used to move the regulating frame (6) toward the conveying platform (2). The regulating plates (63) are in a horizontal state. When each regulating plate (63) acts on the inclined plate (52) in turn, it is used to make the turning bridge (51) turn down to the conveying platform (2) at intervals. After the turning bridge (51) turns down, its position is lower than the cutting platform (1); The main board (4) is connected to the slider (61) via an L-shaped bracket (41). The main board (4) is located at the outer end of the channel. When the main board (4) pushes the polytetrafluoroethylene original plate and makes its end surface contact the flip bridge (51), one of the regulating plates (63) just contacts the inclined plate (52). The laser cutting device (7) is fixedly mounted on the workbench (12) and is used to cut out the polytetrafluoroethylene gasket.

2. The polytetrafluoroethylene gasket laser cutting device according to claim 1, characterized in that: The first horizontal plate (11) is fixedly arranged, and the outer wall of the second horizontal plate (11) is provided with two round rods (13), the outer ends of the two round rods (13) penetrate the inner plate (14) and are connected to the outer plate (15), the inner plate (14) is fixedly arranged on the top of the workbench (12), the bottom surface of the outer plate (15) is closely attached to the top surface of the workbench (12), and the outer circumference of the round rod (13) is provided with a compression spring (131), and the two ends of the compression spring (131) are respectively connected to the second horizontal plate (11) and the inner plate (14), and the outer plate (15) faces the main plate (4). A trapezoidal notch (151) is provided on the outer wall at one end, and a vertical rod (42) is provided at the bottom of the L-shaped bracket (41). The vertical rod (42) is located at the plane of the trapezoidal notch (151). When the main board (4) moves toward the flip bridge (51), the vertical rod (42) squeezes the inclined surface of the trapezoidal notch (151) to move the second horizontal plate (11) toward the cutting table (1). When the vertical rod (42) is in close contact with the outer wall of the outer plate (15), the polytetrafluoroethylene original plate is restricted between the two horizontal plates (11) and is allowed to slide.

3. The polytetrafluoroethylene gasket laser cutting device according to claim 2, characterized in that: The linear travel mechanism (3) comprises a motor (31), a screw rod (32) and a guide rod (33). The screw rod (32) is rotatably arranged between two support frames. Both ends of the guide rod (33) are respectively fixedly arranged on the two support frames. The screw rod (32) and the guide rod (33) are parallel to each other. The motor (31) is arranged on one of the support frames. Its output shaft is used to drive the screw rod (32). The slider (61) is threadedly connected to the screw rod (32) and is slidably matched with the guide rod (33).

4. The polytetrafluoroethylene gasket laser cutting device according to claim 3, characterized in that: A stabilizing block (43) is provided at the bottom of the L-shaped bracket (41), the stabilizing block (43) is slidably matched with the guide rod (33), and the vertical rod (42) is provided at the bottom of the stabilizing block (43).

5. The polytetrafluoroethylene gasket laser cutting device according to claim 2, characterized in that: During the process in which one of the regulating plates (63) continues to act on the inclined plate (52), the polytetrafluoroethylene gasket on the turning bridge (51) slides down to the conveying platform (2).

6. The polytetrafluoroethylene gasket laser cutting device according to claim 1, characterized in that: Two side plates (511) are provided on the side of the turning bridge (51) facing the cutting table (1), and the end of the cutting table (1) is located between the two side plates (511).

7. A method for laser cutting of polytetrafluoroethylene gaskets, characterized in that: The polytetrafluoroethylene gasket laser cutting device according to claim 5 comprises the following steps: S1, placing the polytetrafluoroethylene original plate in the channel on the cutting table (1); S2, the linear travel mechanism (3) moves the control frame (6) toward the conveying platform (2), and at the same time the main board (4) pushes the polytetrafluoroethylene original plate. When the end surface of the polytetrafluoroethylene original plate contacts the flip bridge (51), the first control plate (63) just contacts the inclined plate (52), and the linear travel mechanism (3) stops working; S3, laser cutting equipment (7) cuts out the first polytetrafluoroethylene gasket; S4, the linear travel mechanism (3) continues to work, the first regulating plate (63) acts on the inclined plate (52), causing the flip bridge (51) to flip down to the conveying platform (2), during which the main plate (4) pushes the polytetrafluoroethylene original plate, causing the first polytetrafluoroethylene gasket to slide through the flip bridge (51) to the conveying platform (2); the first regulating plate (63) is separated from the inclined plate (52), and the flip bridge (51) is restored to a vertical state under the action of the return spring; S5. Repeat S2 to S4 until the last polytetrafluoroethylene gasket slides onto the conveyor table (2).

8. The method for laser cutting of polytetrafluoroethylene gasket according to claim 7, characterized in that: In step S2, when the linear travel mechanism (3) moves the regulating frame (6) toward the conveying platform (2), the vertical rod (42) squeezes the inclined surface of the trapezoidal notch (151), so that the second horizontal plate (11) moves toward the cutting platform (1); when the vertical rod (42) just touches the outer wall of the outer plate (15), the first regulating plate (63) is about to contact the inclined plate (52).

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