A laser cutting device and method for a polytetrafluoroethylene gasket

Abstract

The present invention discloses a laser cutting device and method for a polytetrafluoroethylene gasket, which relates to the technical field of laser cutting and includes: a cutting table is arranged on the top of the workbench; a conveying table is located at the outer end of the workbench; the flipping mechanism includes a flipping bridge, an inclined plate and two side seats. The side seats are fixedly arranged 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. The outer side of the inclined plate is rotatably connected to the other side seat. A return spring is arranged in the side seat to keep the flipping bridge in a vertical state; a linear travel mechanism is arranged on the top of the workbench and is connected to a control frame to move the control frame in the direction of the conveying table, so that the flipping bridge is turned down to the conveying table at intervals; the main board is connected to the slider through an L-shaped bracket, and the main board is located at the outer end of the channel; the laser cutting equipment is fixedly arranged on the workbench. This solution can reduce the number of power sources of the laser cutting device.

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 in sequence. 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 of obtaining polytetrafluoroethylene gaskets is as follows: Workers place a polytetrafluoroethylene original board on a cutting table, and a clamping mechanism adjusts the posture and limits the position of the polytetrafluoroethylene original board; a linear travel mechanism moves a laser cutting device to specific positions in sequence along the long axis direction of the polytetrafluoroethylene original board, and the laser cutting device automatically cuts the polytetrafluoroethylene original board to obtain multiple polytetrafluoroethylene gaskets; after the clamping mechanism releases the limit, a 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:

[0006] 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.

[0007] The cutting table is provided on the top of a workbench. Cross plates are provided on both sides of the cutting table, and a channel is formed between the two cross plates for placing a polytetrafluoroethylene original board;

[0008] The conveying table is located at the outer end of the workbench;

[0009] 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;

[0010] 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.

[0011] 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.

[0012] The laser cutting device is fixedly provided on the workbench for cutting out polytetrafluoroethylene gaskets.

[0013] A laser cutting method for polytetrafluoroethylene gaskets, using the above-mentioned laser cutting device for polytetrafluoroethylene gaskets, includes the following steps:

[0014] S1. Place the polytetrafluoroethylene original board in the channel on the cutting table.

[0015] 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.

[0016] S3. The laser cutting device cuts out the first polytetrafluoroethylene gasket.

[0017] 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.

[0018] S5. Repeat steps S2 to S4 until the last polytetrafluoroethylene gasket slides down to the conveying table.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The structure is ingenious. By using only one power source, namely the motor, 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.

[0021] 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. Brief Description of the Drawings

[0022] Figure 1 Shows the structural diagram of the laser cutting device;

[0023] Figure 2 Shows the left view of the laser cutting device;

[0024] Figure 3 Shows the top view of the laser cutting device;

[0025] Figure 4 Shows the state diagram when the first regulation plate just touches the inclined plate;

[0026] Figure 5 Shows the state diagram when the flipping bridge flips down to the conveying table;

[0027] Figure 6 Shows the state diagram when the first regulation plate is about to disengage from the inclined plate;

[0028] Figure 7 Shows the state diagram when the first regulation plate disengages from the inclined plate and the flipping bridge flips up and resets;

[0029] Figure 8 Shows the structural diagram of the outer plate and the vertical rod;

[0030] Figure 9 Shows the schematic connection diagram of the movable cross plate, inner plate, outer plate, and vertical rod;

[0031] Figure 10 Shows the state diagram when the vertical rod presses against the outer wall of the outer plate;

[0032] Figure 11 Shows the flowchart of the laser cutting method;

[0033] Figure 12 Shows the schematic diagram of the printed circuit board;

[0034] 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, Flipping Mechanism - 5, Flipping Bridge - 51, Side Plate - 511, Inclined Plate - 52, Side Seat - 53, Regulation Frame - 6, Slide Block - 61, Rake - shaped Bracket - 62, Regulation Plate - 63, Laser Cutting Equipment - 7. Detailed Description of the Invention

[0035] Embodiment 1

[0036] As Figure 1As shown in the figure, 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 flipping mechanism 5, a regulating frame 6, and a laser cutting device 7.

[0037] 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 that of the workbench 12. Cross plates 11 are provided on both sides of the cutting table 1. A channel is formed between the two cross plates 11, and the channel is used to place the polytetrafluoroethylene original plate.

[0038] 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.

[0039] Specifically, the flipping mechanism 5 is located between the channel and the conveying table 2. As Figures 1 - 3 shown, 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. The flipping bridge 51 and the inclined plate 52 can flip in the direction of the conveying table 2 or in the direction of the channel under the action of an external force. A return spring is provided 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 close to the end face of the cutting table 1.

[0040] Specifically, as Figure 2 shown, the regulating frame 6 includes a slider 61, a rake-shaped support 62, and a plurality of regulating plates 63 arranged in an array. The rake-shaped support 62 is arranged at the bottom of the slider 61, and a plurality of regulating plates 63 are arranged at the bottom of the rake-shaped support 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 and is used to move the regulating frame 6 in the direction of the conveying table 2. The regulating plates 63 are in a horizontal state, and the array direction of the plurality of regulating plates 63 is the same as the long axis direction of the workbench 12.

[0041] When the linear travel mechanism 3 moves the regulating frame 6 in the direction of 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 make the flipping bridge 51 turn down to the conveying table 2 (the state is as Figure 5 shown). After the flipping bridge 51 turns down, its position is lower than that of the cutting table 1.

[0042] As Figure 2As shown, the specific implementation method of the linear travel mechanism 3 is: it includes a motor 31, a screw rod 32 and a guide rod 33, the screw rod 32 is rotatably arranged between two support frames, the two ends of the guide rod 33 are respectively fixed on the two support frames, the screw rod 32 and the guide rod 33 are parallel to each other, the guide rod 33 is located above the screw rod 32, the motor 31 is arranged on one of the support frames, the output shaft of the motor 31 is used to drive the screw rod 32, the slider 61 is threadedly connected to the screw rod 32, and the slider 61 is slidably matched with the guide rod 33.

[0043] Specifically, Figure 1 , Figure 2 As shown, the main board 4 is connected to the slider 61 through the L-shaped bracket 41. The main board 4 is located at the outer end of the channel, and the bottom surface of the main board 4 is close to the top surface of the cutting table 1. When the linear travel mechanism 3 moves the regulating frame 6 toward 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 plate toward the flip bridge 51; when the end surface of the polytetrafluoroethylene original plate just contacts the flip bridge 51, one of the regulating plates 63 just contacts the inclined plate 52 (the state is as shown in FIG. Figure 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.

[0044] 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 .

[0045] 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 separated from the inclined plate 52, and the turning bridge 51 returns to the vertical state under the action of the return spring. At this time, the end face of the remaining polytetrafluoroethylene original plate has not yet contacted the turning bridge 51, that is, the second regulating plate 63 has not yet contacted the inclined plate 52 either; the linear travel mechanism 3 continues to work, repeating the above process until the last polytetrafluoroethylene gasket slides onto the conveying table 2.

[0046] Three points are explained here:

[0047] First, the turning bridge 51 in this solution has two functions: ① restricting the polytetrafluoroethylene original plate on the cutting table 1 to determine the size of the polytetrafluoroethylene gasket; ② when the turning bridge 51 is turned down to the conveying table 2, the turning bridge 51 at this time plays the role of a bridge, enabling the polytetrafluoroethylene gasket to slide onto the conveying table 2.

[0048] Second, in order to make the polytetrafluoroethylene gasket slide onto the conveying table 2 more smoothly, as Figure 3 shown, 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. In Figure 5 , when the turning bridge 51 is turned down to the conveying table 2, the side plates 511 play the role of railing shielding.

[0049] Third, this solution only uses the motor 31 as a single 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 device 7 for cutting. After cutting out the polytetrafluoroethylene gasket, it can also automatically push the polytetrafluoroethylene gasket away from the cutting table 1.

[0050] In the above solution, both cross plates 11 are fixedly arranged. In order to more conveniently place the polytetrafluoroethylene original plate between the two cross plates 11, it is best to fixedly arrange the first cross plate 11 and slidably arrange the second cross plate 11. The specific implementation method is as follows: as Figure 8 、 Figure 9 shown, two round rods 13 are provided on the outer wall of the second cross plate 11. The outer ends of the two round rods 13 penetrate 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, the bottom surface of the outer plate 15 is in close contact with the top surface of the workbench 12, a compression spring 131 is arranged on the outer circumference of the round rod 13, and both ends of the compression spring 131 are connected to the second cross plate 11 and the inner plate 14 respectively. A trapezoidal notch 151 is provided on the outer wall of the outer plate 15 facing one end of the main board 4, 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 towards the turning bridge 51, the vertical rod 42 presses the inclined surface of the trapezoidal notch 151 to make the second cross plate 11 move towards 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 cross plates 11 and allowed to slide (the state is as Figure 10As shown. That is to say, this solution also utilizes the motor 31 as a single power source to adjust the distance between the two cross plates 11.

[0051] Two points are explained here:

[0052] First, for a complete and uncut polytetrafluoroethylene original plate, before the end face of the polytetrafluoroethylene original plate contacts the flipping bridge 51, the second cross plate 11 must have moved to the cutting table 1 and the second cross plate 11 is closely attached to the side wall of the cutting table 1.

[0053] Second, to improve the stability of the main board 4, L-shaped bracket 41 and vertical rod 42 during movement, as Figure 8 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.

[0054] Embodiment 2

[0055] As Figure 11 shown, this embodiment provides a method for laser cutting polytetrafluoroethylene gaskets. Using the polytetrafluoroethylene gasket laser cutting device of Embodiment 1, it includes the following steps:

[0056] S1. Place the polytetrafluoroethylene original plate in the channel on the cutting table 1.

[0057] 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 attached 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.

[0058] S3. The laser cutting device 7 cuts out the first polytetrafluoroethylene gasket.

[0059] 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);

[0060] S5. Repeat the execution of S2 to S4 until the last polytetrafluoroethylene gasket slides onto the conveyor table 2;

[0061] S6. The motor 31 in the linear travel mechanism 3 runs in the reverse direction, causing the adjustment frame 6 to move away from the conveyor table 2 until the adjustment frame 6 is reset to the Figure 2 status in

[0062] The above embodiments are only used to illustrate the technical idea and characteristics of the present invention, and do not represent the only or limit the present invention. Those skilled in the art should understand that various changes or equivalent substitutions made to the present invention without departing from the scope of the present invention all fall within the scope of protection of the present invention.

Claims

1. A laser cutting device for polytetrafluoroethylene gaskets, characterized in that, It includes a cutting table (1), a conveying table (2), a linear travel mechanism (3), a main board (4), a flipping 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). Cross plates (11) are provided on both sides of the cutting table (1), and a channel is formed between the two cross plates (11) for placing a polytetrafluoroethylene original board; The conveying table (2) is located at the outer end of the workbench (12); The flipping mechanism (5) is located between the channel and the conveying table (2), and 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 towards the direction of the channel. The outer side of the inclined plate (52) is rotatably connected to the other side seat (53). A return spring is provided in the side seat (53) to keep the flipping bridge (51) in a vertical state; The regulating frame (6) includes a slider (61), a rake-shaped bracket (62) provided at the bottom of the slider (61), and a plurality of regulating plates (63) provided at the bottom of the rake-shaped bracket (62). The linear travel mechanism (3) is arranged on the top of the workbench (12), and it is connected to the slider (61) for moving the regulating frame (6) towards the conveying table (2). The regulating plates (63) are in a horizontal state. When each regulating plate (63) acts on the inclined plate (52) in sequence, it is used to turn the flipping bridge (51) downwards at intervals to the conveying table (2). After the flipping bridge (51) is turned down, its position is lower than that of the cutting table (1); 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. When the main board (4) pushes the polytetrafluoroethylene original board and makes its end face contact the flipping bridge (51), one of the regulating plates (63) just contacts the inclined plate (52); The laser cutting device (7) is fixedly arranged on the workbench (12) for cutting out polytetrafluoroethylene gaskets; The first cross plate (11) is fixedly arranged. Two round rods (13) are provided on the outer wall of the second cross plate (11). The outer ends of the two round rods (13) penetrate 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). The bottom surface of the outer plate (15) is closely attached to the top surface of the workbench (12). A compression spring (131) is provided on the outer periphery of the round rod (13). The two ends of the compression spring (131) are respectively connected to the second cross plate (11) and the inner plate (14). A trapezoidal notch (151) is provided on the outer wall of the end of the outer plate (15) facing the main board (4). 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 towards the flipping bridge (51), the vertical rod (42) presses the inclined surface of the trapezoidal notch (151) to move the second cross plate (11) towards the cutting table (1). When the vertical rod (42) is closely attached to the outer wall of the outer plate (15), the polytetrafluoroethylene original board is restricted between the two cross plates (11) and allowed to slide.

2. The polytetrafluoroethylene gasket laser cutting device according to claim 1, characterized in that, The linear travel mechanism (3) includes a motor (31), a lead screw (32) and a guide rod (33). The lead screw (32) is rotatably arranged between two support frames, and 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 motor (31) is arranged on one of the support frames, and its output shaft is used to drive the lead screw (32). The slider (61) is threadedly connected to the lead screw (32) and is slidably matched with the guide rod (33).

3. The polytetrafluoroethylene gasket laser cutting device according to claim 2, wherein, The bottom of the L-shaped bracket (41) is provided with a stabilizing block (43), and the stabilizing block (43) is slidably matched with the guide rod (33). The vertical rod (42) is arranged at the bottom of the stabilizing block (43).

4. The polytetrafluoroethylene gasket laser cutting device according to claim 1, characterized in that, During the process that one of the regulating plates (63) continuously acts on the inclined plate (52), the polytetrafluoroethylene gasket on the flipping bridge (51) slides down to the conveying table (2).

5. The polytetrafluoroethylene gasket laser cutting device according to claim 1, wherein Two side plates (511) are arranged on one side of the flipping bridge (51) facing the cutting table (1), and the end of the cutting table (1) is located between the two side plates (511).

6. A method for laser cutting of a polytetrafluoroethylene gasket, characterized in that, The polytetrafluoroethylene gasket laser cutting device according to claim 4 comprises the following steps: S1. Place the polytetrafluoroethylene original plate in the channel on the cutting table (1); S2. The linear travel mechanism (3) moves the regulating frame (6) towards the conveying table (2), and at the same time the main board (4) pushes the polytetrafluoroethylene original plate. When the end face of the polytetrafluoroethylene original plate contacts the flipping bridge (51), the first regulating plate (63) just contacts the inclined plate (52), and the linear travel mechanism (3) stops working; S3. The laser cutting device (7) cuts out the first polytetrafluoroethylene gasket; S4. The linear travel mechanism (3) continues to work, and the first regulating plate (63) acts on the inclined plate (52) to turn the flipping bridge (51) down to the conveying table (2). 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 regulating plate (63) disengages from the inclined plate (52), and the flipping bridge (51) returns to the vertical state under the action of the reset spring; S5. Repeat S2 to S4 until the last polytetrafluoroethylene gasket slides down to the conveying table (2); In step S2, during the process that the linear travel mechanism (3) moves the regulating frame (6) towards the conveying table (2), the vertical rod (42) presses the inclined surface of the trapezoidal notch (151) to move the second cross plate (11) towards the cutting table (1); when the vertical rod (42) just closely adheres to 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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