Cutter device for cutting fabric
By designing a cutting fabric cutting device that uses a connecting rod to drive the up and down movement of the cutter, and combining the automatic correction technology of the offset sensing device, the problem of the cutting knife getting hot and offset when the automatic cutting bed is cut into chemical fiber fabrics is solved, achieving efficient and accurate cutting effect.
Patent Information
- Application Number
- CN202411858847.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-03-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing automatic cutting beds melt and stick when cutting chemical fiber fabrics because the cutting knife becomes hot. When cutting fabrics with a large number of layers, the cutting knife is easily deviated and leads to inaccurate cutting, and the gap-compensated device is complex and expensive.
A cutting tool device for cutting fabrics is designed, using a connecting rod as a lever to drive the cutting tool up and downward movement. By adjusting the hinge hole position of the connecting rod, it can adapt to different fabric characteristics, reduce the operating frequency of the cutting tool and increase the stroke to reduce heat generation; at the same time, an offset sensing device is used to automatically correct the deviation of the cutting tool.
It effectively reduces the heat generation of the cutting knife, can stably cut chemical fiber fabrics, and automatically corrects the deviation of the cutting knife, improves the cutting accuracy and avoids expensive gap-compensating devices.
Smart Images
Figure CN119686092A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a cutting device for cutting fabrics, which is used for an automatic cutting bed (computer cutting bed). Background Art
[0002] The cutter used on the current automatic cutting machine (also called computer cutting machine) adopts a motor to drive an eccentric wheel through a pulley to drive the cutter up and down to achieve the purpose of cutting the material. The cutter drive device with this structure has a fixed rotation distance of the eccentric wheel, and in order to avoid excessive vibration, the eccentric wheel cannot be too large. Because the vibration amplitude of an eccentric wheel that is too large is too large at a rotation speed of several thousand revolutions, it is difficult for various parts to last, and the large vibration also has a great influence on the precision of cutting fabrics.
[0003] In addition, because the up and down movement stroke of the existing automatic cutting machine cutter is fixed, and the stroke is short due to the limitation of the eccentric wheel, it is necessary to move up and down quickly when cutting the fabric, which directly causes the cutter to heat up. For chemical fiber fabrics, the cutter melts and sticks due to heating, so it is still a problem for the current automatic cutting machine to cut chemical fiber fabrics; in addition: when the current automatic cutting machine cuts fabrics with more layers, the side of the cutter is easily offset under force, resulting in a large deviation in the materials cut from the upper and lower parts, and the compensation device used in foreign machines is both complex and expensive, and has patented technical barriers. Summary of the invention
[0004] The purpose of the present invention is to provide a cutting device for cutting fabrics to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, a cutting device for cutting fabrics designed by the present invention comprises: a support plate, a slide rail, a slider, a vertically movable slider fixing sleeve, a connecting rod lifting bracket, a connecting rod lifting device, a No. 1 connecting rod mounting frame, a No. 1 connecting rod, a pin shaft, a No. 3 connecting rod, a screw nut, a screw, a translation motor, a vertically movable slider, an offset sensing device, a support plate bottom plate, a cutter, a connecting rod spare hole, a No. 2 connecting rod, a connecting rod driving motor, and an eccentric wheel; preferably, a support plate is arranged on the bottom plate, a slide rail is fixedly installed on one side of the support plate, a slider is slidably installed on the slide rail, a vertically movable slider fixing sleeve is fixedly installed on the upper surface of the slider, and the vertically movable slider is slidably installed inside the vertically movable slider fixing sleeve; one end of the vertically movable slider is hinged to one end of the No. 3 connecting rod, and a cutter is fixedly installed on the other end, so that when the No. 1 connecting rod is shaken up and down, the cutter is driven to move up and down to achieve the cutting effect on the fabric; a screw nut is fixedly installed on one end of the slider, one end of the screw rotates through the screw nut, and the other end is coaxially connected to the translation motor When the translation motor rotates forward and backward, it drives the slider to move back and forth; a connecting rod lifting bracket is provided on the upper part of the support plate, and a lifting device is fixedly installed on one side of the upper part of the connecting rod lifting bracket for lifting or lowering the No. 1 connecting rod; the output shaft end of the lifting device is fixedly installed with the No. 1 connecting rod mounting frame, and the No. 1 connecting rod is rotatably installed in the middle of the No. 1 connecting rod mounting frame via a pin shaft; an offset sensing device is fixedly installed on both sides of the cutter to detect the offset of the cutter, provide parameters for offset compensation, and automatically correct the problem of cutter offset; the No. 1 connecting rod is provided with a plurality of hinged mounting holes, and a plurality of connecting rod spare holes are provided at one end thereof, which are hinged with the No. 2 connecting rod at different hole positions to adjust the cutter stroke and adapt to different fabric characteristics; one end of the No. 1 connecting rod is hinged to the upper end of the vertical moving slider, and the other end is hinged to one end of the No. 2 connecting rod, and the other end of the No. 2 connecting rod is rotatably connected to the eccentric wheel; the eccentric wheel is fixedly installed on the output shaft of the connecting rod driving motor, and the connecting rod driving motor is fixedly installed on the other side of the support plate.
[0006] Preferably, the slide rails and sliders can also be any components that can provide support for reciprocating movement, including rollers, linear bearings, linear slides, sliders, sleeves or grooves; the screw rods include ball screws, T-shaped screw rods and other mechanical components that can drive reciprocating movement.
[0007] Preferably, the translation motor can also be any component that can drive the slider to reciprocate, such as a cylinder, a hydraulic cylinder, an electric cylinder, a pneumatic motor, etc.
[0008] Preferably, the connecting rod lifting device can adopt any component that can drive the No. 1 connecting rod to move up and down, including a motor, a cylinder, a hydraulic cylinder, a pneumatic motor, etc.
[0009] Preferably, the other end of the lead screw can be coaxially connected to the translation motor, or the translation motor and the lead screw can be installed separately and connected to the lead screw with a belt for driving.
[0010] Preferably, the cutting device for cutting fabrics also includes the following structure: including: a support plate, a slide rail, a slider, a vertically movable slider fixing sleeve, a connecting rod lifting bracket, a connecting rod lifting device, a No. 1 connecting rod mounting frame, a No. 1 connecting rod, a pin shaft, a No. 3 connecting rod, a screw nut, a screw, a translation motor, a vertically movable slider, an offset sensing device, a support plate bottom plate, a cutter, a connecting rod spare hole, a No. 2 connecting rod, a connecting rod driving motor, an eccentric wheel, and a fixed connecting plate; a support plate is provided on the bottom plate, a vertically movable slider fixing sleeve is fixedly installed on one side of the support plate, and the vertically movable slider is slidably installed inside the vertically movable slider fixing sleeve; one end of the vertically movable slider is hinged to one end of the No. 3 connecting rod, and the other end is fixedly installed with a cutter; a slide rail is fixedly installed on the upper surface of the fixed connecting plate, and the slider is slidably installed on the upper surface of the slide rail; the slide A lead screw nut is fixedly installed at one end of the block, one end of the lead screw rotates through the lead screw nut and the other end is coaxially connected to the translation motor; a connecting rod lifting bracket is provided on the upper part of the support plate, and a lifting device is fixedly installed on one side of the upper part of the connecting rod lifting bracket, and a No. 1 connecting rod mounting frame is fixedly installed on the output shaft end of the lifting device, and the No. 1 connecting rod is rotatably installed in the middle of the No. 1 connecting rod mounting frame via a pin shaft; an offset sensing device is fixedly installed on both sides of the cutter; the No. 1 connecting rod is provided with a plurality of hinge mounting holes and a plurality of connecting rod spare holes at one end; one end of the No. 1 connecting rod is hinged to the upper end of the vertical moving slider, and the other end is hinged to one end of the No. 2 connecting rod, and the other end of the No. 2 connecting rod is rotatably connected to the eccentric wheel, and the eccentric wheel is fixedly installed on the output shaft of the connecting rod driving motor, and the connecting rod driving motor is fixedly installed on the other side of the support plate.
[0011] Preferably, the slide rails and sliders can also be any components that can provide support for reciprocating movement, including rollers, linear bearings, linear slides, sliders, sleeves or grooves; the screw rods include ball screws, T-shaped screw rods and other mechanical components that can drive reciprocating movement.
[0012] Preferably, the translation motor can also be any component that can drive the slider to reciprocate, such as a cylinder, a hydraulic cylinder, an electric cylinder, a pneumatic motor, etc.
[0013] Preferably, the connecting rod lifting device can adopt any component that can drive the No. 1 connecting rod to move up and down, including a motor, a cylinder, a hydraulic cylinder, a pneumatic motor, etc.
[0014] Preferably, the other end of the lead screw can be coaxially connected to the translation motor, or the translation motor and the lead screw can be installed separately and connected to the lead screw with a belt for driving. Beneficial effects of the present invention:
[0015] The present invention adopts the principle of using a connecting rod as a lever to drive the up and down movement of the cutter. By connecting different hinge holes, the stroke of the up and down movement of the cutter can be adjusted to adapt to fabrics with different characteristics; reducing the frequency of the cutter operation and increasing the stroke of the cutter can effectively reduce the heat generation of the cutter, and those fusible chemical fiber fabrics can also be cut.
[0016] The newly designed cutter offset compensation technology solves the technical barriers of foreign countries to us, and also avoids expensive costs; the designed No. 1 connecting rod lifting technology can make the cutter rise and fall independently, solving the complicated knife sharpening system of the existing automatic cutting machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall (front) structure of the present invention; Figure 2 yes Figure 1 Left view (excluding translation motor, lead screw nut, lead screw and cutter); Figure 3 yes Figure 2 Left view of Figure 1 back view of the ); Figure 4 yes Figure 2 A top view of Figure 5 It is another structural (front) schematic diagram of the present invention; Figure 6 yes Figure 5 Left view of .
[0018] Explanation of the reference numerals in the accompanying drawings: 1. Support plate; 2. Slide rail; 3. Slider; 4. Vertical moving slider fixing sleeve; 5. Connecting rod lifting bracket; 6. Connecting rod lifting device; 7. Connecting rod mounting frame No. 1; 8. Connecting rod No. 1; 9. Pin shaft; 10. Connecting rod No. 3; 11. Screw nut; 12. Screw; 13. Translation motor; 14. Vertical moving slider; 15. Offset sensing device; 16. Support plate bottom plate; 17. Cutter; 18. Connecting rod spare hole; 19. Connecting rod No. 2; 20. Connecting rod driving motor; 21. Eccentric wheel; 22. Fixed connecting plate. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0020] like Figure 1-Figure 4 The structure of a cutting device for cutting fabrics is shown in the figure, comprising: a support plate (1), a slide rail (2), a slider (3), a vertically movable slider fixing sleeve (4), a connecting rod lifting bracket (5), a connecting rod lifting device (6), a No. 1 connecting rod mounting frame (7), a No. 1 connecting rod (8), a pin shaft (9), a No. 3 connecting rod (10), a screw nut (11), a screw rod (12), a translation motor (13), a vertically movable slider (14), an offset sensing device (15), a support plate bottom plate (16), a cutting knife (17), a connecting rod spare hole (18), a No. 2 connecting rod (19), a connecting rod driving motor (20), and an eccentric wheel (21); the support plate (1) is provided on the bottom plate (16), the A slide rail (2) is fixedly installed on one side of the support plate (1), a slider (3) is slidably installed on the slide rail (2), a vertically movable slider fixing sleeve (4) is fixedly installed on the upper surface of the slider (3), and the vertically movable slider (14) is slidably installed inside the vertically movable slider fixing sleeve (4); one end of the vertically movable slider (14) is hinged to one end of a No. 3 connecting rod, and a cutter (17) is fixedly installed on the other end, and the No. 1 connecting rod (8) swings up and down, driving the vertically movable slider (14) and the cutter (17) to move up and down, thereby realizing the cutting of the fabric; a screw nut (11) is fixedly installed on one end of the slider (3), one end of the screw (12) rotates through the screw nut (11), and the other end of the screw (12) rotates through the screw nut (11) and the other end of the screw (12) rotates through the screw nut (11). The end is coaxially connected to the translation motor (13), and the forward and reverse rotation of the translation motor (13) drives the slider (3) to make reciprocating motion; the upper part of the support plate (1) is provided with a connecting rod lifting bracket (5), and a lifting device (6) is fixedly installed on one side of the upper part of the connecting rod lifting bracket (5); the output shaft end of the lifting device (6) is fixedly installed with a No. 1 connecting rod mounting frame (7), and the No. 1 connecting rod (8) is rotatably installed in the middle of the No. 1 connecting rod mounting frame (7) via a pin shaft (9). When the lifting device (6) is working, it drives the No. 1 connecting rod (8) to rise or fall, so as to independently realize the lifting effect of the cutter; the two sides of the cutter (17) are fixedly installed with an offset sensing device (15) for detecting the offset of the cutter The amount is provided to provide parameters for offset compensation, thereby automatically correcting the problem of cutter offset; the No. 1 connecting rod (8) is provided with a plurality of hinge mounting holes, and a plurality of connecting rod spare holes (18) are provided at one end thereof, and are used to adjust the cutter stroke to adapt to different fabric characteristics by being hinged with the No. 2 connecting rod at different hole positions; one end of the No. 1 connecting rod (8) is hinged to the upper end of the vertical movable slider (14), and the other end is hinged to one end of the No. 2 connecting rod (19); the other end of the No. 2 connecting rod (19) is hinged to the eccentric wheel (21); the eccentric wheel (21) is fixedly mounted on the output shaft of the connecting rod drive motor (20); and the connecting rod drive motor (20) is fixedly mounted on the other side of the support plate (1).
[0021] The slide rail (2) and slider (3) may also be any component capable of supporting reciprocating movement, including rollers, linear bearings, linear slideways, sliders, sleeves or slide grooves; the screw rod (12) may be any component capable of driving reciprocating movement, such as a ball screw, a T-shaped screw rod, or the like.
[0022] The translation motor (13) can also be any component that can drive the slider (3) to reciprocate, such as a cylinder, a hydraulic cylinder, an electric cylinder, a pneumatic motor, etc.
[0023] The connecting rod lifting device (6) can be any component that can drive the No. 1 connecting rod (8) to move up and down, including a motor, a cylinder, a hydraulic cylinder, a pneumatic motor, etc.
[0024] The other end of the screw rod (12) can be coaxially connected to the translation motor (13) or the translation motor (13) and the screw rod (12) can be installed separately, and the translation motor (13) is connected to the screw rod (12) by a belt for driving.
[0025] See also Figure 5-Figure 6The schematic diagram of the structure shown in the figure shows a cutting device for cutting fabrics, which also includes the following structure, including: a support plate (1), a slide rail (2), a slider (3), a vertically movable slider fixing sleeve (4), a connecting rod lifting bracket (5), a connecting rod lifting device (6), a No. 1 connecting rod mounting frame (7), a No. 1 connecting rod (8), a pin shaft (9), a No. 3 connecting rod (10), a screw nut (11), a screw rod (12), a translation motor (13), a vertically movable slider (14), an offset sensing device (15), a support plate bottom plate (16), a cutting knife (17), and a connecting rod spare hole (18) , No. 2 connecting rod (19), connecting rod driving motor (20), eccentric wheel (21), fixed connecting plate (22); a support plate (1) is arranged on the bottom plate (16), a vertical moving slider fixing sleeve (4) is fixedly installed on one side of the support plate (1), and a vertical moving slider (14) is slidably installed inside the vertical moving slider fixing sleeve (4); one end of the vertical moving slider (14) is hinged to one end of the No. 3 connecting rod, and a cutter (17) is fixedly installed on the other end; a slide rail (2) is fixedly installed on the upper surface of the fixed connecting plate (22), and the slider (3) slides Installed on the slide rail (2); one end of the slider (3) is fixedly installed with a screw nut (11), one end of the screw (12) rotates through the screw nut (11), and the other end is coaxially connected to the translation motor (13); the upper part of the support plate (1) is provided with a connecting rod lifting bracket (5), and a lifting device (6) is fixedly installed on one side of the upper part of the connecting rod lifting bracket (5), and a No. 1 connecting rod mounting frame (7) is fixedly installed on the output shaft end of the lifting device (6), and the No. 1 connecting rod (8) is rotatably installed in the middle of the No. 1 connecting rod mounting frame (7) via a pin shaft (9); the cutting Offset sensing devices (15) are fixedly mounted on both sides of the knife (17); the No. 1 connecting rod (8) is provided with a plurality of hinge mounting holes, and a plurality of connecting rod spare holes (18) are provided at one end thereof; one end of the No. 1 connecting rod (8) is hinged to the upper end of the vertical movable slider (14), and the other end is hinged to one end of the No. 2 connecting rod (19); the other end of the No. 2 connecting rod (19) is hinged to an eccentric wheel (21); the eccentric wheel (21) is fixedly mounted on the output shaft of a connecting rod drive motor (20); and the connecting rod drive motor (20) is fixedly mounted on the other side of the support plate (1).
[0026] The slide rail (2) and slider (3) may also be any component capable of supporting reciprocating movement, including rollers, linear bearings, linear slideways, sliders, sleeves or slide grooves; the screw rod (12) may be any component capable of driving reciprocating movement, such as a ball screw, a T-shaped screw rod, or the like.
[0027] The translation motor (13) can also be any component that can drive the slider (3) to reciprocate, such as a cylinder, a hydraulic cylinder, an electric cylinder, a pneumatic motor, etc.
[0028] The connecting rod lifting device (6) can be any component that can drive the No. 1 connecting rod (8) to move up and down, including a motor, a cylinder, a hydraulic cylinder, a pneumatic motor, etc.
[0029] The other end of the screw rod (12) can be coaxially connected to the translation motor (13) or the translation motor (13) and the screw rod (12) can be installed separately, and the translation motor (13) is connected to the screw rod (12) by a belt for driving.
Claims
1. A cutting device for cutting fabrics, comprising: Support plate (1), slide rail (2), slider (3), vertical moving slider fixing sleeve (4), connecting rod lifting bracket (5), connecting rod lifting device (6), No. 1 connecting rod mounting frame (7), No. 1 connecting rod (8), pin shaft (9), No. 3 connecting rod (10), screw nut (11), screw rod (12), translation motor (13), vertical moving slider (14), offset sensing device (15), support plate bottom plate (16), cutter (17), connecting rod spare hole (18), No. 2 connecting rod (19), connecting rod driving motor (20), An eccentric wheel (21); a support plate (1) is arranged on the bottom plate (16); a slide rail (2) is fixedly installed on one side of the support plate (1); a slider (3) is slidably installed on the slide rail (2); a vertically movable slider fixing sleeve (4) is fixedly installed on the upper surface of the slider (3); a vertically movable slider (14) is slidably installed inside the vertically movable slider fixing sleeve (4); one end of the vertically movable slider (14) is hinged to one end of a No. 3 connecting rod, and a cutter (17) is fixedly installed on the other end; one end of the slider (3) is fixedly installed A screw nut (11) is installed, one end of the screw (12) rotates through the screw nut (11), and the other end is coaxially connected to the translation motor (13); a connecting rod lifting bracket (5) is provided on the upper part of the support plate (1), a lifting device (6) is fixedly installed on one side of the upper part of the connecting rod lifting bracket (5), a No. 1 connecting rod mounting frame (7) is fixedly installed on the output shaft end of the lifting device (6), and the No. 1 connecting rod (8) is rotatably mounted in the middle of the No. 1 connecting rod mounting frame (7) via a pin shaft (9); offset connecting rods (8) are fixedly installed on both sides of the cutter (17). The first connecting rod (8) is provided with a plurality of hinge mounting holes and a plurality of connecting rod spare holes (18) at one end thereof; one end of the first connecting rod (8) is hinged to the upper end of the vertical movable slider (14) and the other end is hinged to one end of the second connecting rod (19); the other end of the second connecting rod (19) is hinged to an eccentric wheel (21); the eccentric wheel (21) is fixedly mounted on the output shaft of a connecting rod drive motor (20); and the connecting rod drive motor (20) is fixedly mounted on the other side of the support plate (1).
2. A cutting device for cutting fabrics according to claim 1, characterized in that: The slide rail (2) and slider (3) may also be any component capable of supporting reciprocating movement, including rollers, linear bearings, linear slideways, sliders, sleeves or slide grooves; the screw rod (12) may be any component capable of driving reciprocating movement, such as a ball screw, a T-shaped screw rod, or the like.
3. A cutting device for cutting fabrics according to claim 1, characterized in that: The translation motor (13) can also be any component that can drive the slider (3) to reciprocate, such as a cylinder, a hydraulic cylinder, an electric cylinder, a pneumatic motor, etc.
4. A cutting device for cutting fabrics according to claim 1, characterized in that: The connecting rod lifting device (6) can be any component that can drive the No. 1 connecting rod (8) to move up and down, including a motor, a cylinder, a hydraulic cylinder, a pneumatic motor, etc.
5. A cutting device for cutting fabrics according to claim 1, characterized in that: The other end of the screw rod (12) can be coaxially connected to the translation motor (13) or the translation motor (13) and the screw rod (12) can be installed separately, and the translation motor (13) is connected to the screw rod (12) by a belt for driving.
6. A cutting device for cutting fabrics according to claim 1, characterized in that: The cutting device for cutting fabrics also includes the following structure, including: a support plate (1), a slide rail (2), a slider (3), a vertically movable slider fixing sleeve (4), a connecting rod lifting bracket (5), a connecting rod lifting device (6), a No. 1 connecting rod mounting frame (7), a No. 1 connecting rod (8), a pin shaft (9), a No. 3 connecting rod (10), a screw nut (11), a screw rod (12), a translation motor (13), a vertically movable slider (14), an offset sensing device (15), a support plate bottom plate (16), a cutting knife (17), a connecting rod spare hole (18), a No. 2 connecting rod The bottom plate (16) is provided with a support plate (1), a vertical movable slider fixing sleeve (4) is fixedly mounted on one side of the support plate (1), and a vertical movable slider (14) is slidably mounted inside the vertical movable slider fixing sleeve (4); one end of the vertical movable slider (14) is hinged to one end of the No. 3 connecting rod, and a cutter (17) is fixedly mounted on the other end; a slide rail (2) is fixedly mounted on the upper surface of the fixed connecting plate (22), and the slider (3) is slidably mounted on The slide rail (2) is provided on the top of the slide rail (2); one end of the slider (3) is fixedly mounted with a screw nut (11); one end of the screw (12) rotates through the screw nut (11) and the other end is coaxially connected to the translation motor (13); the upper part of the support plate (1) is provided with a connecting rod lifting bracket (5); a lifting device (6) is fixedly mounted on one side of the upper part of the connecting rod lifting bracket (5); a No. 1 connecting rod mounting frame (7) is fixedly mounted on the output shaft end of the lifting device (6); the No. 1 connecting rod (8) is rotatably mounted in the middle of the No. 1 connecting rod mounting frame (7) via a pin shaft (9); the cutter ( 17) An offset sensing device (15) is fixedly installed on both sides; the No. 1 connecting rod (8) is provided with a plurality of hinge mounting holes, and a plurality of connecting rod spare holes (18) are provided at one end thereof; one end of the No. 1 connecting rod (8) is hinged to the upper end of the vertical movable slider (14), and the other end is hinged to one end of the No. 2 connecting rod (19); the other end of the No. 2 connecting rod (19) is hinged to the eccentric wheel (21), and the eccentric wheel (21) is fixedly installed on the output shaft of the connecting rod drive motor (20), and the connecting rod drive motor (20) is fixedly installed on the other side of the support plate (1).
7. A cutting device for cutting fabrics according to claim 5, characterized in that: The slide rail (2) and slider (3) may also be any component capable of supporting reciprocating movement, including rollers, linear bearings, linear slideways, sliders, sleeves or slide grooves; the screw rod (12) may be any component capable of driving reciprocating movement, such as a ball screw, a T-shaped screw rod, or the like.
8. A cutting device for cutting fabrics according to claim 5, characterized in that: The translation motor (13) can also be any component that can drive the slider (3) to reciprocate, such as a cylinder, a hydraulic cylinder, an electric cylinder, a pneumatic motor, etc.
9. A cutting device for cutting fabrics according to claim 5, characterized in that: The connecting rod lifting device (6) can be any component that can drive the No. 1 connecting rod (8) to move up and down, including a motor, a cylinder, a hydraulic cylinder, a pneumatic motor, etc.
10. A cutting device for cutting fabrics according to claim 5, characterized in that: The other end of the screw rod (12) can be coaxially connected to the translation motor (13) or the translation motor (13) and the screw rod (12) can be installed separately, and the translation motor (13) is connected to the screw rod (12) by a belt for driving.