Cutting equipment for jean fabric production
By introducing lifting control and flattening cutting mechanisms into denim fabric cutting equipment, the problem of fabric wrinkles during the cutting process is solved, achieving a smooth and thorough cut of the fabric.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 王成浩
- Filing Date
- 2025-07-07
- Publication Date
- 2026-05-19
AI Technical Summary
During the cutting process, the friction and pulling force generated when the cutting blade comes into contact with the fabric cause the fabric to accumulate around the edges, forming wrinkles. This affects the cutting effect, resulting in an uneven cut and incomplete cutting.
A device comprising a cutting table, a U-shaped rod, a drive mechanism, a lifting control mechanism, and a flattening cutting mechanism is designed. The lifting control mechanism controls the lifting and moving of the flattening cutting mechanism. The cooperation of the telescopic cylinder, the pull line, and the flattening block eliminates fabric wrinkles, and the flattening plate pushes the fabric flat to ensure the cutting effect.
It effectively eliminates fabric wrinkles, ensuring a smooth and thorough cut, and improving cutting quality.
Smart Images

Figure CN224259077U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fabric processing technology, specifically a cutting device for denim fabric production. Background Technology
[0002] Denim fabric is a relatively thick, yarn-dyed warp-faced twill cotton fabric. The warp yarns are dark, usually indigo, while the weft yarns are light. The warp yarns are dyed using a one-step combined sizing and dyeing process. Variations in twill, plain weave, or crepe weave are also available. The fabric undergoes anti-shrinkage treatment, resulting in a lower shrinkage rate than ordinary fabrics. It has a dense, thick texture, vibrant colors, and clear weave. It is suitable for men's and women's jeans, denim jackets, denim vests, denim skirts, etc. After the denim fabric is woven, it needs to be cut into different sizes for sale. However, during the cutting process, the friction and pulling forces generated when the cutting blade contacts the fabric can easily cause the fabric to accumulate around the edges, forming wrinkles. This affects the cutting effect, resulting in uneven cuts and incomplete cuts.
[0003] Therefore, we propose a cutting device for denim fabric production to solve the problems mentioned above. Utility Model Content
[0004] The purpose of this invention is to solve the problem that denim fabric is prone to wrinkles and uneven cuts during the cutting process due to friction and pulling forces generated when the cutting blade comes into contact with the fabric.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cutting device for denim fabric production, comprising: a cutting table, wherein a U-shaped rod is provided on the cutting table, and a driving mechanism for controlling the movement of the U-shaped rod is provided on the cutting table;
[0006] The lifting control mechanism is mounted on the U-shaped rod;
[0007] A flattening and cutting mechanism is located at the bottom of the lifting control mechanism, and the flattening and cutting mechanism is moved up and down through the lifting control mechanism.
[0008] The flattening and cutting mechanism includes a flattening plate, a telescopic cylinder on the flattening plate, a blade rod inside the telescopic cylinder, a cutting blade at the bottom end of the blade rod, a lower cutting edge and multiple movable grooves on the lower surface of the flattening plate, a flattening block movably disposed in the movable groove, and a pull line between the flattening block and the telescopic cylinder.
[0009] Furthermore, the cutting table has two moving slots, and the driving mechanism includes a drive motor, a threaded rod, and a limiting rod. The threaded rod and the limiting rod are respectively set in the two moving slots. The drive motor is installed on the side of the cutting table and connected to the threaded rod. The two ends of the U-shaped rod are respectively provided with threaded holes and limiting sliding holes. The threaded holes are threadedly connected to the threaded rod, and the limiting sliding holes are slidably connected to the limiting rod.
[0010] Furthermore, the lifting control mechanism includes a rotating shaft, a threaded post at the bottom end of the rotating shaft, and a rotating handle at the top end of the rotating shaft. The U-shaped rod has an adapter groove that matches the rotating shaft, and a rotating groove is formed in the adapter groove. A rotating plate that is rotatably connected to the rotating groove is provided on the rotating shaft. A threaded groove that matches the threaded post is formed at the top end of the tool bar. A limit post is provided on the lower surface of the U-shaped rod, and a limit groove that is slidably connected to the limit post is formed at the top end of the tool bar.
[0011] Furthermore, the telescopic cylinder includes a first sleeve fixed to the pressure plate, a second sleeve movably sleeved on the outside of the first sleeve, the top end of the second sleeve being fixed to the knife bar, a lower pressure ring and a first compression spring sleeved on the first sleeve, the top end of the first compression spring being fixed to the lower pressure ring, and the bottom end of the first compression spring being fixed to the pressure plate.
[0012] Furthermore, the movable groove is evenly distributed around the lower blade edge. The flattening block includes a first block with a spring cavity inside. A limit plate and a second compression spring are installed in the spring cavity. The lower surface of the limit plate is connected to the second block. A sleeve is fixed in the movable groove. A sleeve hole adapted to the sleeve is opened on the first block. A third compression spring is sleeved on the sleeve. One end of the third compression spring is in contact with the first block, and the other end of the third compression spring is in contact with the inner wall of the movable groove. One end of the pull line is connected to the first block, and the other end of the pull line is connected to the second sleeve.
[0013] Furthermore, the pressure plate is provided with a plurality of evenly distributed U-shaped plates, and each U-shaped plate is provided with a guide wheel that overlaps with the pull line.
[0014] Furthermore, the cutting table is provided with multiple evenly distributed support plates, each support plate is threaded with a knob bolt, and the bottom end of the knob bolt is provided with a clamping plate.
[0015] The beneficial effects of this utility model are as follows: By setting a lifting control mechanism on the U-shaped rod and a flattening and cutting mechanism at the bottom of the lifting control mechanism, the lifting control mechanism can control the lifting and moving of the flattening and cutting mechanism. When in contact with the fabric, the flattening block is moved by the cooperation of the telescopic cylinder, the pull line and the flattening block, pushing the fabric to stretch in multiple directions to eliminate the fabric wrinkles below the flattening and cutting mechanism. Then, by moving the pressing plate, the fabric is pushed and flattened, making the fabric surface flat and facilitating the cutting blade to cut. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the cutting equipment for denim fabric production according to this utility model;
[0017] Figure 2 This is a first cross-sectional view of the cutting equipment for denim fabric production according to this utility model.
[0018] Figure 3 This is a utility model Figure 2 A magnified schematic diagram of the local structure A;
[0019] Figure 4 This is a second cross-sectional view of the cutting equipment for denim fabric production according to this utility model.
[0020] Figure 5 This is a utility model Figure 4 A magnified schematic diagram of the local structure B;
[0021] Figure 6 This is a schematic diagram of the flattening and cutting mechanism of the cutting equipment for denim fabric production according to this utility model.
[0022] The names corresponding to each mark in the diagram:
[0023] 1. Cutting table; 101. Moving groove; 102. Lower blade groove; 2. U-shaped rod; 3. Pressing plate; 31. Lower blade edge; 32. Movable groove; 4. Telescopic cylinder; 41. First sleeve; 42. Second sleeve; 5. Blade bar; 6. Cutting blade; 7. Flattening block; 71. First block; 72. Limiting plate; 73. Second compression spring; 74. Second block; 8. Pull line; 9. Drive motor; 10. Threaded rod; 11. Limiting rod; 12. Rotating shaft; 13. Threaded column; 14. Rotating handle lever; 15. Rotating plate; 16. Limiting column; 17. Lower pressure ring; 18. First compression spring; 19. Sleeve column; 20. Third compression spring; 21. U-shaped plate; 22. Guide wheel; 23. Support plate; 24. Knob bolt; 25. Pressing plate; 26. Bearing. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.
[0025] Embodiments of this utility model:
[0026] like Figures 1-4 As shown, this utility model provides a cutting device for denim fabric production, including a cutting table 1, a lifting control mechanism, and a flattening cutting mechanism. A U-shaped rod 2 is provided on the cutting table 1, and a drive mechanism for controlling the movement of the U-shaped rod 2 is provided on the cutting table 1. Two moving slots 101 are opened on the cutting table 1. The drive mechanism includes a drive motor 9, a threaded rod 10, and a limiting rod 11. The threaded rod 10 and the limiting rod 11 are respectively set in the two moving slots 101. The drive motor 9 is installed on the side of the cutting table 1 and connected to the threaded rod 10. Threaded holes and limiting sliding holes are respectively opened at both ends of the U-shaped rod 2. The threaded holes are threadedly connected to the threaded rod 10, and the limiting sliding holes are slidably connected to the limiting rod 11. The drive motor 9 drives the threaded rod 10 to rotate, thereby driving the U-shaped rod 2 to move in the moving slots 101.
[0027] like Figures 1-6As shown, the lifting control mechanism is mounted on the U-shaped rod 2, and the flattening and cutting mechanism is mounted at the bottom of the lifting control mechanism. As the U-shaped rod 2 moves within the moving groove 101, the flattening and cutting mechanism moves and cuts. The flattening and cutting mechanism moves up and down via the lifting control mechanism. The flattening and cutting mechanism includes a pressing plate 3, on which a telescopic cylinder 4 is mounted. A blade 5 is mounted inside the telescopic cylinder 4, and a cutting blade 6 is mounted at the bottom end of the blade 5. A lower cutting groove 102 corresponding to the cutting blade 6 is opened on the cutting table 1. A lower cutting edge 31 and multiple movable grooves 32 are opened on the lower surface of the pressing plate 3. A flattening block 7 is movably mounted in the movable groove 32. A pull line 8 is provided between the flattening block 7 and the telescopic cylinder 4. The telescopic cylinder 4 includes a first sleeve 41 fixed to the pressing plate 3. A second sleeve 42 is movably sleeved outside the first sleeve 41. The top end of the second sleeve 42 is fixed to the blade 5. A lower pressure ring 17 and a first compression spring 18 are sleeved on the first sleeve 41. The top end of the first compression spring 18 is connected to the lower... The pressure ring 17 is fixed, and the bottom end of the first compression spring 18 is fixed to the pressure plate 3. The lifting control mechanism includes a rotating shaft 12, a threaded post 13 at the bottom end of the rotating shaft 12, and a rotating handle 14 at the top end of the rotating shaft 12. The U-shaped rod 2 has an adapter groove that matches the rotating shaft 12, and a rotating groove is provided in the adapter groove. The rotating shaft 12 has a rotating plate 15 that is rotatably connected to the rotating groove. The top end of the cutter bar 5 has a threaded groove that matches the threaded post 13. The lower surface of the U-shaped rod 2 has a limit post 16, and the top end of the cutter bar 5 has a limit groove that is slidably connected to the limit post 16. The rotating shaft and the threaded post 13 are rotated by the rotating handle 14 of the lifting control mechanism, so that the cutter bar 5 drives the flattening and cutting mechanism to move downward and contact the fabric. As the cutter bar 5 moves downward, the second sleeve 42 moves and pulls the flattening block 7 through the pull line 8 to move, pushing the fabric below the flattening and cutting mechanism and eliminating the fabric wrinkles below the flattening and cutting mechanism.
[0028] like Figures 1-6As shown, the movable groove 32 has a uniformly distributed blade 31 centered on it. The flattening block 7 includes a first block 71 with a spring cavity inside. A limit plate 72 and a second compression spring 73 are installed inside the spring cavity. A second block 74 is connected to the lower surface of the limit plate 72. A sleeve 19 is fixed inside the movable groove 32. A sleeve hole adapted to the sleeve 19 is opened on the first block 71. A third compression spring 20 is fitted on the sleeve 19. One end of the third compression spring 20 is in contact with the first block 71, and the other end is in contact with the inner wall of the movable groove 32. One end of the pull line 8 is connected to the first block 71, and the other end of the pull line 8 is connected to the second sleeve 42. Multiple U-shaped plates 21 are evenly distributed on the pressing plate 3. Each U-shaped plate 21 is equipped with a guide wheel 22 that connects with the pull line 8. It should be noted that the spring coefficient of the second compression spring 73 is greater than that of the third spring, and the spring coefficient of the first spring is greater than that of the second spring. As the knife bar 5 and the second sleeve 42 continue to move downward, the second sleeve 42 will contact the lower pressure ring 17, and the second block 74 will be pressed into the spring cavity. The second compression spring 73 will be compressed, and the lower surface of the pressure plate 3 will contact the fabric. Then, the knife bar 5 and the second sleeve 42 will move downward, the first compression spring 18 will be compressed, and the cutting knife 6 will be pressed down and inserted into the fabric. When the U-shaped bar 2 and the flattening and cutting mechanism are moved by the drive mechanism, the fabric is pushed and flattened by the pressure plate 3, and then cut by the cutting knife 6.
[0029] like Figures 1-2 As shown, the cutting table 1 is provided with multiple evenly distributed support plates 23. The support plates 23 are threaded with knob bolts 24. The bottom of the knob bolts 24 is provided with a clamping plate 25. The cross-section of the support plate 23 is L-shaped. The clamping plate 25 is provided with a bearing 26 that is compatible with the knob bolts 24.
Claims
1. A cutting device for denim fabric production, characterized in that, include: A cutting table (1) is provided with a U-shaped rod (2), and a driving mechanism for controlling the movement of the U-shaped rod (2) is provided on the cutting table (1). The lifting control mechanism is mounted on the U-shaped rod (2); A flattening and cutting mechanism is located at the bottom of the lifting control mechanism, and the flattening and cutting mechanism is moved up and down through the lifting control mechanism. The flattening and cutting mechanism includes a flat plate (3), a telescopic cylinder (4) is provided on the flat plate (3), a knife bar (5) is provided inside the telescopic cylinder (4), a cutting knife (6) is provided at the bottom end of the knife bar (5), a lower cutting edge (31) and multiple movable grooves (32) are provided on the lower surface of the flat plate (3), a flattening block (7) is movably arranged in the movable groove (32), and a pull line (8) is provided between the flattening block (7) and the telescopic cylinder (4).
2. The cutting equipment for denim fabric production according to claim 1, characterized in that: The cutting table (1) has two moving slots (101). The driving mechanism includes a drive motor (9), a threaded rod (10), and a limiting rod (11). The threaded rod (10) and the limiting rod (11) are respectively set in the two moving slots (101). The drive motor (9) is installed on the side of the cutting table (1) and connected to the threaded rod (10). The two ends of the U-shaped rod (2) are respectively provided with threaded holes and limiting sliding holes. The threaded holes are threadedly connected to the threaded rod (10), and the limiting sliding holes are slidably connected to the limiting rod (11).
3. The cutting equipment for denim fabric production according to claim 1, characterized in that: The lifting control mechanism includes a rotating shaft (12), a threaded post (13) at the bottom end of the rotating shaft (12), and a rotating handle (14) at the top end of the rotating shaft (12). The U-shaped rod (2) has an adapter groove that matches the rotating shaft (12), and a rotating groove is provided in the adapter groove. The rotating shaft (12) has a rotating plate (15) that is rotatably connected to the rotating groove. The top end of the tool bar (5) has a threaded groove that matches the threaded post (13). The lower surface of the U-shaped rod (2) has a limit post (16), and the top end of the tool bar (5) has a limit groove that is slidably connected to the limit post (16).
4. The cutting equipment for denim fabric production according to claim 1, characterized in that: The telescopic cylinder (4) includes a first sleeve (41) fixed to the pressure plate (3), a second sleeve (42) is movably sleeved on the outside of the first sleeve (41), the top end of the second sleeve (42) is fixed to the knife bar (5), a lower pressure ring (17) and a first compression spring (18) are sleeved on the first sleeve (41), the top end of the first compression spring (18) is fixed to the lower pressure ring (17), and the bottom end of the first compression spring (18) is fixed to the pressure plate (3).
5. A cutting device for denim fabric production according to claim 4, characterized in that: The movable groove (32) is evenly distributed around the lower blade (31) as the center. The flattening block (7) includes a first block (71). A spring cavity is provided in the first block (71). A limit plate (72) and a second compression spring (73) are provided in the spring cavity. A second block (74) is connected to the lower surface of the limit plate (72). A sleeve (19) is fixed in the movable groove (32). A sleeve hole adapted to the sleeve (19) is provided on the first block (71). A third compression spring (20) is sleeved on the sleeve (19). One end of the third compression spring (20) is in contact with the first block (71), and the other end of the third compression spring (20) is in contact with the inner wall of the movable groove (32). One end of the pull line (8) is connected to the first block (71), and the other end of the pull line (8) is connected to the second sleeve (42).
6. The cutting equipment for denim fabric production according to claim 1, characterized in that: The pressure plate (3) is provided with a plurality of evenly distributed U-shaped plates (21), and each U-shaped plate (21) is provided with a guide wheel (22) that overlaps with the pull line (8).
7. The cutting equipment for denim fabric production according to claim 1, characterized in that: The cutting table (1) is provided with a plurality of evenly distributed support plates (23), and the support plates (23) are threadedly connected with knob bolts (24), and the bottom end of the knob bolts (24) is provided with a pressure plate (25).