A cloth strip cutting machine

Abstract

A cloth strip cutting machine comprises a frame, a hanging support fixed on the frame, and a lifting frame vertically movable along the frame. The lifting frame has side arms on both sides of the hanging support, and is integrally provided with a double-sided pressing mechanism and a transverse linear module. The double-sided pressing mechanism is used to clamp and tension a row of strips between the side arms from both sides. The laser cutting head carried on the transverse linear module moves along a path parallel to the arrangement direction of the row of strips to cut the row of tensioned strips in a transverse scanning manner. The utility model realizes "tensioning first and cutting later" and step-by-step operation from bottom to top through the integrated lifting frame, fundamentally solves the problems of poor precision and low quality caused by slipping or no tensioning in the traditional roller feeding mode, and significantly improves the production efficiency through whole-row parallel cutting.

Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, specifically a cloth strip cutting machine. Background Technology

[0002] In industrial sectors such as garment manufacturing, there is a need to efficiently and precisely process various flexible materials, such as webbing, elastic bands, and ribbons, from long rolls into short pieces of uniform specifications for subsequent sewing or assembly processes. Therefore, stable, fixed-length cutting of flexible materials is crucial for improving the yield rate of finished products on production lines.

[0003] In current manufacturing, the mainstream solution is an automatic cutting machine based on roller feeding. This type of equipment consists of upper and lower opposing drive rollers forming the feeding mechanism, and a guillotine-type or rotary blade-type cutting mechanism is configured downstream of it. The specific working process is as follows: the strip is pulled from the roll and conveyed to the preset length by the friction between the rollers and the strip. Then, the feeding is paused and the cutting mechanism is triggered to complete the cutting.

[0004] In practical use, the above method has the following drawbacks: First, the feeding accuracy is limited by the static friction between the roller and the strip material. For strips of elastic bands, rubber belts, or smooth-surfaced ribbons and special webbing, slippage or non-linear elongation under pressure is likely to occur, leading to accumulated length errors, reduced product consistency, and increased scrap rate. Second, the cut quality is poorly controllable. At the moment of cutting, the strip material is usually in a low-tension or relaxed state, and the impact of the cutting tool causes defects such as burrs, fraying, and skewed cuts, making it difficult to meet appearance and performance requirements. Therefore, to solve the above problems, a fabric strip cutting machine is needed. Summary of the Invention

[0005] This utility model addresses the shortcomings of existing technologies by proposing a fabric strip cutting machine, the specific technical solution of which is as follows: A fabric strip cutting machine, characterized in that: Includes frame, suspension bracket, double-sided pressing mechanism, lifting mechanism, lifting frame, linear sliding mechanism and laser cutting head; The suspension bracket and the lifting mechanism are respectively fixedly installed on the frame. The suspension bracket is used to position a row of vertically suspended strips from the top. The lifting mechanism has a lifting part, and the lifting frame is fixedly connected to the lifting part of the lifting mechanism; The lifting frame is respectively equipped with the linear sliding mechanism and the double-sided pressing mechanism; The bilateral pressing mechanism includes a first pressing component and a second pressing component disposed opposite to each other, and the first pressing component and the second pressing component together define a clamping channel. A path of strip material runs through and is located within the clamping channel, and the arrangement direction of the strip material is consistent with the length direction of the clamping channel; The linear sliding mechanism includes a sliding part, and the laser cutting head is fixed on the sliding part. The laser cutting head is configured to emit a laser beam to cut the row of strips laterally during the movement of the sliding part.

[0006] To better realize this utility model, it can be further made as follows: The lifting frame includes a first side arm and a second side arm that are arranged parallel to each other at intervals. The suspension bracket is an L-shaped rod, which includes: A support rod arranged vertically, the lower end of which is fixedly mounted on the frame; and a crossbar extending horizontally from the upper end of the support rod for suspending a row of strips; The crossbar is located between the first side arm and the second side arm.

[0007] Furthermore, it also includes a pre-loading cassette, on which a row of strips is fixed, and the pre-loading cassette is detachably mounted on the crossbar.

[0008] Furthermore: the lower side of the crossbar is provided with a T-shaped guide groove along the axial direction; The pre-loaded cartridge includes a lower base plate, guide posts, upper pressure strips, and a locking mechanism; The upper side of the lower substrate is integrally formed with a T-shaped slider that slides in cooperation with the T-shaped guide groove along the axial direction. At least two of the guide posts are vertically fixed on the lower base plate, and the upper pressure bar is provided with guide holes that slide with the guide posts so that the upper pressure bar can move vertically up and down along the guide posts. The locking mechanism cooperates with the guide post to detachably lock the upper pressure bar in a position facing the lower substrate.

[0009] Furthermore: the upper end of the guide post is a screw section, and the locking mechanism is a locking nut that is threadedly engaged with the screw section.

[0010] Further: the first pressing assembly includes a first pressing cylinder and a first pressing strip, and the second pressing assembly includes a second pressing cylinder and a second pressing strip; The two first pressing cylinders are respectively fixed on the first side arm, and the first pressing strip is fixed on the telescopic end of the first pressing cylinder; The two second pressing cylinders are respectively fixed on the second side arm, and the second pressing strip is fixed on the telescopic end of the second pressing cylinder.

[0011] The beneficial effects of this utility model are as follows: This invention features a simple overall structure. A fixed suspension bracket initially positions the strip material from the top, while a vertically movable lifting frame integrating a double-sided pressing mechanism and a linear sliding mechanism clamps and tensions the lower part of the strip material before cutting. This ensures the material's physical state remains highly stable at the moment of cutting, completely eliminating length errors caused by material slippage or elastic elongation, guaranteeing a smooth and straight cut, and avoiding defects such as burrs and stringing.

[0012] Secondly, the U-shaped double-arm surrounding the L-shaped support structure provides a stable and reliable mechanical foundation for the high-precision operation of the equipment. The lifting frame adopts a symmetrical structure with a first side arm and a second side arm, and the suspension support uses an L-shaped rod fixed at the lower end, with its crossbar cleverly positioned between the two side arms of the lifting frame. By using a design where the moving unit surrounds the fixed unit, the double-sided pressing mechanism can apply completely symmetrical and balanced clamping and tensioning forces to the suspended strip material from both sides towards the center, avoiding material displacement that may be caused by unidirectional force.

[0013] Third, the use of pre-loaded trays greatly improves the equipment's production efficiency and automation level. By separating the time-consuming and concentration-requiring process of aligning the fabric strips from the main machine flow, parallel human-machine operation is achieved. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the present invention; Figure 2 for Figure 1 AA section view; Figure 3 for Figure 2 BB section view; The attached diagrams are as follows: 1. Frame; 2. Suspension bracket; 3. Support rod; 4. Crossbar; 5. Lifting mechanism; 6. Lifting part; 7. Lifting frame; 8. First side arm; 9. Second side arm; 10. Linear sliding mechanism; 11. Sliding part; 12. Laser cutting head; 13. Lower base plate; 14. T-shaped slider; 15. Guide post; 16. Upper pressure bar; 17. Locking nut; 18. First pressing cylinder; 19. First pressure bar; 20. Second pressing cylinder; 21. Second pressure bar; 22. Recycling box; 23. Cloth strip. Detailed Implementation

[0015] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In the description of this utility model, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] like Figures 1 to 3 As shown, the fabric cutting machine provided in this embodiment includes a frame 1, a suspension bracket 2, a double-sided pressing mechanism, a lifting mechanism 5, a lifting frame 7, a linear sliding mechanism 10, and a laser cutting head 12.

[0018] The frame 1 is constructed from Q235A carbon structural steel using a welding process. A suspension bracket 2 is fixedly installed on the upper part of the frame 1.

[0019] Specifically, the suspension bracket 2 is an L-shaped rod, which includes a vertically positioned support rod 3 and a horizontally positioned crossbar 4. The lower end of the support rod 3 is securely fixed to the middle of the upper surface of the frame 1 by bolts, while the crossbar 4 extends horizontally from the upper end of the support rod 3 in an integral form. A T-shaped guide groove is machined along the length of the lower side of the crossbar 4.

[0020] A lifting mechanism 5 is also fixedly installed on the frame 1. The linear sliding mechanism 10 adopts a commercially available standardized linear module. Since the lifting mechanism 5 is responsible for bearing the weight and dynamic load of the entire lifting frame 7, a heavy-duty ball screw linear module of model GUH manufactured by MISUMI is selected. The slider of the heavy-duty ball screw linear module constitutes the lifting part 6 of the lifting mechanism 5.

[0021] The lifting frame 7 is fixedly connected to the lifting part 6 of the lifting mechanism 5, thereby enabling it to slide along the vertical direction of the frame 1.

[0022] Specifically, the lifting frame 7 is a U-shaped frame, which includes a first side arm 8 and a second side arm 9 arranged parallel to each other. In terms of assembly, the crossbar 4 of the suspension bracket 2 is located between the first side arm 8 and the second side arm 9 of the lifting frame 7.

[0023] The linear sliding mechanism 10 and the double-sided pressing mechanism are respectively provided on the lifting frame 7.

[0024] The linear sliding mechanism 10 is disposed adjacent to the first sidewall, and the linear sliding mechanism 10 includes a sliding part 11. The laser cutting head 12 is fixed on the sliding part 11.

[0025] Specifically, in this embodiment, the linear sliding mechanism 10 adopts a commercially available standardized linear module. The slider on the linear module is the sliding part 11 of the linear sliding mechanism 10.

[0026] The linear sliding mechanism 10 is preferably a single-axis drive module, model LX2605-300, manufactured by MISUMI. This linear module is used to provide stable linear reciprocating motion for the laser cutting head 12.

[0027] The bilateral pressing mechanism includes a first pressing component and a second pressing component disposed opposite to each other, the first pressing component and the second pressing component together defining a clamping channel; A path of strip material runs through and is located within the clamping channel, and the arrangement direction of the strip material is consistent with the length direction of the clamping channel; Specifically, the first pressing assembly includes two horizontally arranged first pressing cylinders 18, which are fixedly mounted on the first side arm 8 of the lifting frame 7. The back of the first pressing strip 19 is firmly fixed to the telescopic ends of the two first pressing cylinders 18.

[0028] Similarly, the second pressing assembly also includes two second pressing cylinders 20 and a second pressing strip 21, which are mounted on the second side arm 9 of the lifting frame 7 in a completely symmetrical manner.

[0029] This embodiment also includes a pre-loading cartridge that is detachably coupled to the crossbar 4. The pre-loading cartridge includes a lower base plate 13 made of aluminum alloy, on the upper side of which a T-shaped slider 14 is integrally formed, capable of slidingly engaging with the T-shaped guide groove of the crossbar 4. Two guide posts 15, with screw sections at their upper ends, are vertically fixed on the lower base plate 13. An upper pressure bar 16 has guide holes that mate with the guide posts 15, and the upper pressure bar 16 can vertically rise and fall along the guide posts 15. Two locking nuts 17 serve as a locking mechanism; the locking nuts 17 have a butterfly structure and are screwably fitted onto the screw sections of the guide posts 15.

[0030] In order to achieve automated collection of the cut finished products, a recycling bin 22 is also provided in the frame 1, located directly below the clamping channel.

[0031] The working principle is as follows: In this embodiment, the operator selects a laser power matching the strip material in the current pre-loaded cassette from the process parameter database through the equipment's human-machine interface. Next, the operator first pre-fixes a row of fabric strips 23 into the offline pre-loaded cassette. Then, the operator slides the T-shaped slider 14 of the pre-loaded cassette into and positions it along the T-shaped guide groove of the crossbar 4 of the suspension bracket 2.

[0032] After the equipment is started, the lifting mechanism 5 drives the lifting frame 7 to move to the initial cutting position. The double-sided pressing mechanism on the lifting frame 7 is activated, and the first and second pressing components on both sides move towards each other, cooperating to clamp and tension a row of fabric strips 23.

[0033] Next, the sliding part 11 of the linear sliding mechanism 10 drives the laser cutting head 12 to move along a path parallel to the length direction of the clamping channel. During the movement, the laser cutting head 12 emits a laser beam to cut the strip material laterally. The cut strip material then falls into the recycling bin 22 below. After cutting is completed, the double-sided pressing mechanism is released, the lifting frame 7 moves upward a distance equal to the length of the finished product, and repeats the "clamping-cutting" cycle.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fabric strip cutting machine, characterized in that: It includes a frame, suspension bracket, double-sided pressing mechanism, lifting mechanism, lifting frame, linear sliding mechanism, and laser cutting head; The suspension bracket and the lifting mechanism are respectively fixedly installed on the frame. The suspension bracket is used to position a row of vertically suspended strips from the top. The lifting mechanism has a lifting part, and the lifting frame is fixedly connected to the lifting part of the lifting mechanism; The lifting frame is respectively equipped with the linear sliding mechanism and the double-sided pressing mechanism; The bilateral pressing mechanism includes a first pressing component and a second pressing component disposed opposite to each other, the first pressing component and the second pressing component together defining a clamping channel; A path of strip material runs through and is located within the clamping channel, and the arrangement direction of the strip material is consistent with the length direction of the clamping channel; The linear sliding mechanism includes a sliding part, and the laser cutting head is fixed on the sliding part. The laser cutting head is configured to emit a laser beam to cut the row of strips laterally during the movement of the sliding part.

2. The fabric strip cutting machine according to claim 1, characterized in that: The lifting frame includes a first side arm and a second side arm that are arranged parallel to each other at intervals. The suspension bracket is an L-shaped rod, which includes: A support rod arranged vertically, the lower end of which is fixedly mounted on the frame; and a crossbar extending horizontally from the upper end of the support rod for suspending a row of strips; The crossbar is located between the first side arm and the second side arm.

3. The fabric strip cutting machine according to claim 2, characterized in that: It also includes a pre-loading cassette, on which a row of strips is fixed, and the pre-loading cassette is detachably mounted on the crossbar.

4. A fabric strip cutting machine according to claim 3, characterized in that: The lower side of the crossbar is provided with a T-shaped guide groove along the axial direction; The pre-loaded cartridge includes a lower base plate, guide posts, upper pressure strips, and a locking mechanism; The upper side of the lower substrate is integrally formed with a T-shaped slider that slides in conjunction with the T-shaped guide groove along the axial direction. At least two of the guide posts are vertically fixed on the lower base plate, and the upper pressure bar is provided with guide holes that slide with the guide posts so that the upper pressure bar can move vertically up and down along the guide posts. The locking mechanism cooperates with the guide post to detachably lock the upper pressure bar in a position facing the lower substrate.

5. A fabric strip cutting machine according to claim 4, characterized in that: The upper end of the guide post is a screw section, and the locking mechanism is a locking nut that is threadedly engaged with the screw section.

6. A fabric strip cutting machine according to claim 2, characterized in that: The first pressing assembly includes a first pressing cylinder and a first pressing strip, and the second pressing assembly includes a second pressing cylinder and a second pressing strip; The two first pressing cylinders are respectively fixed on the first side arm, and the first pressing strip is fixed on the telescopic end of the first pressing cylinder; The two second pressing cylinders are respectively fixed on the second side arm, and the second pressing strip is fixed on the telescopic end of the second pressing cylinder.

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