A cutting device for finishing the weft threads of the cut.
By combining the weft alignment component and the pressing component, the problem of weft position deviation in fabric cutting is solved, achieving high-quality cutting results, preventing weft cutting and rough edges, and improving the stability of the cutting equipment and the cleanliness of the environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-07
- Publication Date
- 2026-04-03
AI Technical Summary
When cutting fabrics, it is difficult to guarantee the angle when placing them manually, which leads to deviations in the weft cutting position, resulting in rough edges and fiber waste. In particular, the warp threads at the corners of mesh fabrics are prone to disintegration, affecting the cutting quality and the environment.
By employing a weft straightening assembly and a pressing assembly, the weft yarns are moved away from the cut by the periodic rotation of the friction roller. Combined with the pressing assembly to fix the fabric, this ensures that the cutting assembly only cuts the warp yarns, preventing weft yarns from being cut and increasing the weaving density at the cut.
It effectively prevents weft thread cutting and burr formation, improves cut stability, reduces fiber waste, and enhances cutting quality and environmental cleanliness.
Smart Images
Figure CN116926943B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of fabric processing machinery technology, and in particular to a cutting device for weft thread finishing. Background Technology
[0002] A fabric cutting machine generally consists of three parts: a transport component, a cutting component, and a feeding component. First, the fabric roll is placed manually on the feeding position of the cutting machine. Then, the movable end of the fabric is pulled through the conveyor belt on the fabric cutting machine and placed directly below the cutting component. The fabric cutting machine is then turned on, and the feeding component moves to the cutting component and clamps the fabric with a fixture. The feeding component then retracts to the designated position, and after the cutting component completes the cutting, the fabric of the corresponding length is obtained.
[0003] However, in practical applications, due to the manual threading of the fabric, it is difficult to guarantee the placement angle of the fabric. This causes the cutting position of the cutting component to deviate from the direction of the weft thread of the fabric. After cutting, the same weft thread is easily cut, which can easily form rough edges or produce a lot of fiber debris. At the same time, after the deviation, the weft thread is very prone to disintegration, which not only affects the cutting quality but also the cutting environment. This is especially true for cutting mesh fabrics, where the warp threads at the corners are more prone to disintegration. Summary of the Invention
[0004] In view of this, the purpose of the present invention is to provide a cutting device for weft thread trimming to solve the above-mentioned problems.
[0005] To achieve the above objectives, the present invention provides a cutting device for weft yarn alignment at the cut, comprising a cutting machine body and a cutting assembly disposed on the cutting machine body. The cutting machine body has a transport channel for material passage, and the cutting assembly is disposed opposite the transport channel. The device further comprises a weft-aligning assembly and a pressing assembly disposed on the cutting machine body. The weft-aligning assembly is used to move the weft yarns on both sides of the cut away from each other, and the pressing assembly is used to press the fabric on both sides of the cut.
[0006] There are at least two clamping areas between the clamping component and the fabric to restrict the fabric from sliding. The clamping areas are arranged along the width direction of the fabric and the cut is arranged between two adjacent clamping areas.
[0007] The weft straightening assembly is located directly below the cutting assembly. The weft straightening assembly includes a friction roller mounted on the cutting machine body and a control motor that controls the rotation direction of the friction roller. The axial direction of the friction roller is set along the width direction of the fabric. The friction roller contacts the fabric at the cut and rotates periodically in both forward and reverse directions. The friction roller experiences at least one rotation cycle during its contact with the fabric.
[0008] Optionally, the weft straightening assembly further includes a mounting base slidably connected to the cutting machine body and a lifting cylinder mounted on the cutting machine body. The friction roller is rotatably connected to the mounting base, and the lifting cylinder is used to control the friction roller to move closer to or away from the fabric.
[0009] Optionally, the cutting machine body includes a first material belt and a second material belt arranged sequentially along the material transport direction. The first material belt is at a higher horizontal level than the second material belt. A support platform is provided at the tail end of the first material belt. A weft-separating opening is provided on the side of the support platform away from the first material belt. The weft-separating opening is used for the friction roller to pass through.
[0010] Optionally, the clamping assembly includes a mounting bracket mounted on the cutting machine body, a clamping cylinder mounted on the mounting bracket, and a first clamping block that is pulsatorically connected to the output end of the clamping cylinder. The first clamping block is located directly above the support platform and is slidably connected to the mounting bracket in the vertical direction. The contact area between the first clamping block and the top surface of the support platform forms a first clamping area on one side of the cut. A feeding assembly is provided on the side of the support platform away from the first material belt. The weft-separating opening is open on the side facing the feeding assembly. The feeding assembly forms a second clamping area on the other side of the cut.
[0011] Optionally, the clamping assembly further includes a second clamping block slidably connected to the mounting bracket, a positioning block slidably connected to the mounting bracket, a first rack fixedly connected to the second clamping block, a second rack fixedly connected to the positioning block, and a gear rotatably connected to the mounting bracket. The second clamping block is fixedly connected to the first clamping block. The first rack and the second rack are respectively disposed on both sides of the gear and both mesh with the gear. The contact area between the second clamping block and the positioning block forms a third clamping area on the other side of the cut.
[0012] Optionally, the distance from the first clamping area to the cut is equal to the distance from the third clamping area to the cut.
[0013] Optionally, the cutting assembly is mounted on a mounting base.
[0014] Optionally, the friction roller is made of rubber.
[0015] The beneficial effects of this invention are:
[0016] This invention utilizes a weft-aligning component and a clamping component. The clamping component secures the fabric on both sides of the cutting component, while the weft-aligning component shifts the weft yarns at the cut to both sides, eliminating the presence of weft yarns at the cut. This ensures that only the warp yarns are cut at the fabric cut after the cutting component completes the process, preventing the cutting component from cutting the weft yarns and causing broken fibers or severed weft yarns. Simultaneously, the weft-aligning component concentrates the weft yarns at the cut, resulting in a higher weaving density and increasing the difficulty of disassembly at the cut. Furthermore, the invention incorporates a friction roller that rotates clockwise and counterclockwise, causing the weft yarns to move away from each other due to friction. The friction roller also features a simple structure and lower cost. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;
[0019] Figure 2 This is a cross-sectional view of an embodiment of the present invention;
[0020] Figure 3 For the present invention Figure 2 A magnified structural diagram of region A in the middle.
[0021] The diagram is marked as follows:
[0022] 1. Cutting machine body; 2. Friction roller; 4. Mounting base; 5. Lifting cylinder; 6. First material belt; 7. Second material belt; 8. Bearing platform; 9. Weft separator; 10. Mounting frame; 11. Clamping cylinder; 12. First clamping block; 13. Second clamping block; 14. Positioning block; 15. First rack; 16. Second rack; 17. Gear; 18. Clamping assembly; 19. Cutting assembly. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.
[0024] Example:
[0025] This specification provides one or more embodiments of a cutting device for finishing the weft threads of a cut, such as... Figures 1 to 3As shown, it includes a cutting machine body 1, a cutting component 19, a weft alignment component, a pressing component, and a feeding component. The pressing component has at least two clamping areas for limiting fabric slippage. The cutting component and the weft alignment component are arranged between two adjacent clamping areas. The feeding component is arranged behind the pressing component along the material transport direction.
[0026] In some optional specific embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the cutting machine body 1 includes a first material belt 6 and a second material belt 7 arranged sequentially along the material transport direction. The horizontal height of the first material belt 6 is higher than that of the second material belt 7. The first material belt 6 and the second material belt 7 form a transport channel for the passage of materials. The clamping height of the feeding component is the same as the top surface height of the first material belt 6, so that the cut fabric can fall directly onto the second material belt 7.
[0027] In some optional specific embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, a support platform 8 is provided at the tail end of the first material belt 6. The support platform 8 is used to guide the fabric on the first material belt 6 to its top surface. A weft dividing slot 9 is opened on one side of the support platform 8. The weft straightening assembly is located directly below the weft dividing slot 9. The weft straightening assembly includes a friction roller 2 mounted on the cutting machine body 1, a control motor that controls the rotation direction of the friction roller 2, a mounting base 4 slidably connected to the cutting machine body 1, and a lifting cylinder 5 mounted on the cutting machine body 1. The friction roller 2 is rotatably connected to the mounting base 4 via a shaft, and the axial direction of the friction roller 2 is arranged along the width direction of the fabric. The control motor is fixedly connected to the mounting base 4. The friction roller 2 is driven by the control motor. During operation, the lifting cylinder... 5. Push the mounting base 4 to rise, thereby causing the friction roller 2 on the mounting base 4 to rise and approach the fabric. When the friction roller 2 passes through the weft dividing opening 9, it contacts the fabric. After the friction roller 2 is in position, the control motor controls the friction roller 2 to rotate periodically. This ensures that when the fabric contacts the friction roller 2, the friction between the friction roller 2 and the fabric causes the weft threads of the fabric to slip. The friction roller 2 can go through at least one rotation cycle, thereby causing the weft threads on both sides of the top of the friction roller 2 to move away from each other. After the weft division is completed, the lifting cylinder 5 controls the friction roller 2 to descend and return to the initial position. The friction roller 2 is made of rubber material to increase the friction between the friction roller 2 and the weft threads and improve the weft division effect.
[0028] In some optional specific embodiments, such as Figure 1 , Figure 2 and Figure 3As shown, the clamping assembly is positioned directly above the support platform. The clamping assembly is used to clamp the fabric on both sides of the cut. The clamping assembly includes a mounting bracket 10 mounted on the cutting machine body 1, a clamping cylinder 11 mounted on the mounting bracket 10, a first clamping block 12 drivenly connected to the output end of the clamping cylinder 11, a second clamping block 13 slidably connected to the mounting bracket 10, a positioning block 14 slidably connected to the mounting bracket 10, a first rack 15 fixedly connected to the second clamping block 13, a second rack 16 fixedly connected to the positioning block 14, and a gear 17 rotatably connected to the mounting bracket 10. The first clamping block 12... The first clamping block 12 is positioned directly above the support platform 8 and is slidably connected to the mounting frame 10 in the vertical direction. The contact area between the first clamping block 12 and the top surface of the support platform 8 forms the first clamping area on one side of the cut. During operation, the clamping cylinder 11 directly pushes the first clamping block 12 downward, thereby enabling the first clamping block 12 to clamp the fabric with the support platform. Since the feeding component clamps the fabric before cutting and ensures the fabric is flat during cutting, the feeding component forms the second clamping area on the other side of the cut, ensuring that the friction roller 2 has a certain force with the fabric when weft is separated, preventing the friction roller 2 from causing the fabric to roll up when it rotates.
[0029] In some optional specific embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the second clamping block 13 is fixedly connected to the first clamping block 12. The first rack 15 and the second rack 16 are respectively disposed on both sides of the gear 17 and mesh with the gear 17. When the clamping cylinder 11 pushes the first clamping block 12 downward, the second clamping block 13, which is fixedly connected to the first clamping block 12, moves downward at the same time. The first rack 15 on the second clamping block 13 also moves downward at the same time. The first rack 15 drives the gear 17 meshing with it to rotate. The gear 17 then drives the second rack 16 meshing with it to move in the opposite direction, thereby causing the second rack 16 to drive the positioning block 14 to rise. When the first clamping block 12 contacts the support table, the second clamping block 13 and the positioning block 14 contact simultaneously, thereby clamping the fabric on both sides of the cut. This ensures that the processing position of the fabric remains relatively fixed when the friction roller 2 contacts the fabric or during cutting, preventing fabric shaking and causing deviation at the cut. The contact area between the second clamping block 13 and the positioning block 14 forms the third clamping area on the other side of the cut. The distance from the first clamping area to the cut is equal to the distance from the third clamping area to the cut, so that the clamping position on both sides of the fabric cut is the same as the distance to the cut, ensuring the uniformity of the weft splitting of the friction roller 2.
[0030] In some optional specific embodiments, such as Figure 1 , Figure 2 and Figure 3As shown, the cutting component 19 is mounted on the mounting base 4. During operation, the cutting component 19 moves simultaneously with the friction roller 2. After the fabric is cut, the cutting component 19 is located below the fabric. The lifting cylinder 5 pushes the friction roller 2 and the cutting component 19 to rise simultaneously, so that the gap between the cutting component 19 and the friction roller 2 is aligned. After alignment, the feeding component approaches the support table 8 and clamps the movable end of the fabric on the support table 8. Then, the feeding component moves away from the support table 8 and drags the fabric until it reaches the designated position. Then, the lifting cylinder 5 pushes the friction roller 2 to rise, so that the friction roller 2 contacts the fabric. After the weft separation is completed, the lifting cylinder 5 drives the friction roller 2 and the cutting component 19 to fall until the cutting component 19 completes the cutting of the fabric, thus entering the next cycle. The cutting component 19 is mounted on the mounting base 4, which facilitates the simultaneous operation of the cutting component 19 and the friction roller 2.
[0031] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.
[0032] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.
Claims
1. A cutting device for finishing the weft threads of a cut, comprising a cutting body (1) and a cutting assembly (19) disposed on the cutting body (1), wherein the cutting body (1) has a transport channel for material passage, and the cutting assembly (19) is disposed opposite to the transport channel, characterized in that, It also includes a weft straightening assembly and a pressing assembly disposed on the cutting machine body (1). The weft straightening assembly is used to separate the weft threads on both sides of the cut, and the pressing assembly is used to press the fabric on both sides of the cut. There are at least two clamping areas between the clamping component and the fabric to restrict the fabric from sliding. The clamping areas are arranged along the width direction of the fabric and the cut is arranged between two adjacent clamping areas. The weft straightening assembly is located directly below the cutting assembly (19). The weft straightening assembly includes a friction roller (2) mounted on the cutting machine body (1) and a control motor that controls the rotation direction of the friction roller (2). The axial direction of the friction roller (2) is arranged along the width direction of the fabric. The friction roller (2) contacts the fabric at the cut and rotates forward and backward periodically. The friction roller (2) experiences at least one rotation cycle during its contact with the fabric.
2. The cutting equipment for weft thread trimming according to claim 1, characterized in that, The weft straightening assembly also includes a mounting base (4) slidably connected to the cutting machine body (1) and a lifting cylinder (5) mounted on the cutting machine body (1). The friction roller (2) is rotatably connected to the mounting base (4), and the lifting cylinder (5) is used to control the friction roller (2) to move closer to or away from the fabric.
3. The cutting equipment for weft thread finishing according to claim 1, characterized in that, The cutting machine body (1) includes a first material belt (6) and a second material belt (7) arranged sequentially along the material transport direction. The horizontal height of the first material belt (6) is higher than that of the second material belt (7). A support platform (8) is provided at the tail end of the first material belt (6). A weft-separating opening (9) is opened on the side of the support platform (8) away from the first material belt (6). The weft-separating opening (9) is used for the friction roller (2) to pass through.
4. The cutting equipment for weft thread finishing according to claim 3, characterized in that, The clamping assembly includes a mounting bracket (10) mounted on the cutting machine body (1), a clamping cylinder (11) mounted on the mounting bracket (10), and a first clamping block (12) connected to the output end of the clamping cylinder (11). The first clamping block (12) is located directly above the support platform (8) and is slidably connected to the mounting bracket (10) in the vertical direction. The contact area between the first clamping block (12) and the top surface of the support platform (8) forms a first clamping area on one side of the cut. A feeding assembly is provided on the side of the support platform (8) away from the first material belt (6). The weft opening (9) is open on the side facing the feeding assembly. The feeding assembly forms a second clamping area on the other side of the cut.
5. The cutting equipment for weft thread finishing according to claim 4, characterized in that, The clamping assembly further includes a second clamping block (13) slidably connected to the mounting bracket (10), a positioning block (14) slidably connected to the mounting bracket (10), a first rack (15) fixedly connected to the second clamping block (13), a second rack (16) fixedly connected to the positioning block (14), and a gear (17) rotatably connected to the mounting bracket (10). The second clamping block (13) is fixedly connected to the first clamping block (12). The first rack (15) and the second rack (16) are respectively disposed on both sides of the gear (17) and both mesh with the gear (17). The contact area between the second clamping block (13) and the positioning block (14) forms a third clamping area on the other side of the cut.
6. The cutting device for weft thread finishing according to claim 5, characterized in that, The distance from the first clamping area to the cut is equal to the distance from the third clamping area to the cut.
7. The cutting equipment for weft thread finishing according to claim 1, characterized in that, The cutting assembly (19) is mounted on the mounting base (4).
8. The cutting device for weft thread finishing according to claim 1, characterized in that, The friction roller (2) is made of rubber.
Citation Information
Patent Citations
Automatic woven tape processing device
CN110029432A
Fabric weft correcting or weft-correcting pattern correcting device and method
CN111851040A