A fabric cutting and positioning device for rucksack production

By introducing a positioning module and an automatic flattening mechanism into the leather fabric cutting device, the problems of wrinkling and shifting of leather fabric during the conveying process are solved, achieving efficient fabric positioning and cutting, and improving product quality and production efficiency.

CN224309843UActive Publication Date: 2026-06-02LUAN SHANGMEI LUGGAGE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LUAN SHANGMEI LUGGAGE CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Leather fabrics are prone to wrinkling and shifting during transport, leading to laser cutting failures. Existing equipment struggles to effectively position and flatten them.

Method used

The fabric cutting and positioning device, which includes a belt conveyor and a three-axis laser cutting unit, uses a combination of lower and upper pressure rollers in the positioning module, and an electric cylinder and motor to drive the upper support to descend, thereby achieving automatic positioning and flattening of the fabric.

Benefits of technology

It improved the accuracy of fabric cutting and the product qualification rate, reduced laser cutting errors, and increased work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to leather fabric processing equipment technical field, and disclose a fabric cutting positioning device for rucksack production, including belt conveyer, the belt conveyer outside installation has three -axis laser cutting device, and the both sides of belt conveyor are equipped with the positioning module of array distribution, and the positioning module includes lower support and upper support, and lower support is rotatably connected with upper support. In the utility model, can automatically carry out the conveying, positioning, flattening operation of fabric, reduced the laser cutting error and error due to the wrinkle of fabric, deviation, improved the qualified rate of product, and the whole process is automatic, improved work efficiency.
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Description

Technical Field

[0001] This utility model relates to the technical field of leather fabric processing equipment, specifically a fabric cutting and positioning device for backpack production. Background Technology

[0002] When manufacturing leather backpacks, the leather fabric needs to be cut. The traditional processing method is to first lay a template on the leather fabric to mark the lines, and then cut it. With the continuous development of automated equipment, laser cutting is now mostly used. The leather fabric is first transported by a belt conveyor, and after reaching the designated position, the machine stops. Then, a three-axis laser cutting device laser cuts the leather fabric.

[0003] However, leather fabrics have a certain chance of wrinkling or shifting during transport, which can easily lead to laser cutting failures. Therefore, it is necessary to perform auxiliary flattening and positioning operations when laser cutting leather fabrics and to improve the structure of existing laser cutting equipment.

[0004] Therefore, we propose a fabric cutting and positioning device for backpack production. Utility Model Content

[0005] The present invention aims to solve the technical problems existing in the prior art and provide a fabric cutting and positioning device for backpack production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fabric cutting and positioning device for backpack production, including a belt conveyor, a three-axis laser cutting device installed on the outside of the belt conveyor, and positioning modules arranged in an array on both sides of the belt conveyor. The positioning module includes a lower support and an upper support, and the lower support and the upper support are rotatably connected.

[0007] The lower support is fixedly connected to the side of the belt conveyor. The lower support has a first slot and a second slot inside. An electric cylinder is installed inside the first slot, and multiple sets of pressure rollers are installed inside the second slot.

[0008] The upper support has a hollowed-out third slot and a fourth slot. The third slot has a fixedly connected motor, and the fourth slot has multiple sets of splined shafts. The number of motors and splined shafts is the same as the number of lower pressure rollers. The motors drive the splined shafts to rotate, and the splined shafts are equipped with splined upper pressure rollers.

[0009] The upper support is equipped with a liftable pressure plate below it.

[0010] Preferably, the belt conveyor has a rotating conveyor belt inside, and a support platform is provided inside the conveyor belt to support the upper surface of the conveyor belt horizontally.

[0011] Preferably, the triaxial laser cutting device performs laser cutting on the fabric conveyed by the conveyor belt.

[0012] Preferably, the lower bracket has a first mounting block fixedly connected to its upper end, and the upper bracket has a fourth mounting block fixedly connected to its lower end, with the fourth mounting block rotatably connected to the first mounting block.

[0013] Preferably, the lower support is provided with a first support fixedly connected at the lower end, a second mounting block fixedly connected at the tail end of the electric cylinder, a third mounting block fixedly connected at the telescopic end of the electric cylinder, the second mounting block being rotatably connected to the first support, and a fifth mounting block fixedly connected inside the third slot, the fifth mounting block being rotatably connected to the third mounting block.

[0014] Preferably, the lower pressure wheel is rotatably connected to the second slot, and the lower pressure wheel and the upper pressure wheel are conical wheels with opposite installation directions.

[0015] Preferably, both ends of the upper pressure roller are provided with a first spring, which is sleeved on the spline shaft.

[0016] Preferably, an array of telescopic rods are provided between the pressure plate and the upper support, and a second spring is sleeved on the outside of each telescopic rod. Beneficial effects

[0017] This invention provides a fabric cutting and positioning device for backpack production. It has the following advantages:

[0018] (1) The fabric cutting and positioning device used for backpack production can automatically transport, position and flatten the fabric, reduce laser cutting errors and mistakes caused by fabric wrinkles and offsets, improve the product qualification rate, and the whole process is automatic, which improves work efficiency.

[0019] (2) When the fabric cutting and positioning device used for backpack production is in use, the electric cylinder pulls the upper support to continue to descend. At this time, since the lower pressure wheel and the upper pressure wheel have already contacted each other, the upper support will continue to descend and drive the upper pressure wheel to slide in the direction of the smaller diameter of the lower pressure wheel. The spring on the side of the upper pressure wheel near the motor contracts, and the pressure between the lower pressure wheel and the upper pressure wheel increases, thereby tightening the fabric to both sides. As the upper support continues to rotate and descend, the pressure plate contacts the fabric and drives the fabric to be completely pressed on the conveyor belt. Attached Figure Description

[0020] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0022] Figure 1 This is a front view schematic diagram of the structure of a fabric cutting and positioning device for backpack production according to an embodiment of the present utility model;

[0023] Figure 2 This is a side view schematic diagram of the structure of a fabric cutting and positioning device for backpack production according to an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the positioning module in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the lower support structure in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the upper support structure in an embodiment of the present utility model;

[0027] Figure 6 This is a structural schematic diagram of the positioning module in operation in an embodiment of this utility model;

[0028] Legend: 1. Belt conveyor; 2. Three-axis laser cutting device; 3. Fabric; 4. Lower support; 5. Upper support; 11. Conveyor belt; 41. First mounting block; 42. First support; 43. Electric cylinder; 44. Lower pressure roller; 45. Second slot; 51. Fifth mounting block; 52. Fourth mounting block; 53. Fourth slot; 54. Splined shaft; 55. Upper pressure roller; 56. First spring; 57. Pressure plate; 58. Telescopic rod; 431. Second mounting block; 432. Third mounting block; 541. Motor; 581. Second spring. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1 to 6 As shown, this embodiment provides a fabric cutting and positioning device for backpack production, including a belt conveyor 1, a rotating conveyor belt 11 inside the belt conveyor 1, a support platform inside the conveyor belt 11, the support platform supports the upper surface of the conveyor belt 11 horizontally, and the support platform is fixed inside the belt conveyor 1.

[0031] Furthermore, a three-axis laser cutting device 2 is installed on the outside of the belt conveyor 1, which laser-cuts the fabric 3 conveyed by the conveyor belt 11.

[0032] Furthermore, both sides of the belt conveyor 1 are equipped with arrayed positioning modules, each including a lower support 4 and an upper support 5.

[0033] Specifically, the lower support 4 is provided with a first mounting block 41 fixedly connected at the upper end, and the lower support 4 is fixedly connected to the side of the belt conveyor 1.

[0034] The lower support 4 has a first support 42 fixedly connected at its lower end. The lower support 4 has a first slot and a second slot 45 hollowed out inside. An electric cylinder 43 is installed inside the first slot. A second mounting block 431 is fixedly connected at the tail end of the electric cylinder 43. A third mounting block 432 is fixedly connected at the telescopic end of the electric cylinder 43. The second mounting block 431 is rotatably connected to the first support 42.

[0035] The second slot 45 is provided with multiple sets of pressure rollers 44. The pressure rollers 44 are rotatably connected to the second slot 45. The pressure rollers 44 are conical wheels with different diameters at both ends. The diameter of the end face of the pressure roller 44 away from the first mounting block 41 is larger than the diameter of the end face near the first mounting block 41.

[0036] Furthermore, the lower end of the upper bracket 5 is provided with a fourth mounting block 52 that is fixedly connected. The fourth mounting block 52 is rotatably connected to the first mounting block 41, so that the angle of the upper bracket 5 relative to the lower bracket 4 can be adjusted.

[0037] Specifically, the upper support 5 has a hollowed-out third slot and a fourth slot 53 inside. The third slot has a fixedly connected fifth mounting block 51 and motor 541 inside. The fifth mounting block 51 is rotatably connected to the third mounting block 432. The electric cylinder 43 pushes the upper support 5 to rotate.

[0038] The fourth slot 53 is provided with multiple sets of splined shafts 54. The number of motors 541 and splined shafts 54 is the same as the number of lower pressure rollers 44. The motors 541 drive the splined shafts 54 to rotate. The splined shafts 54 are provided with splined upper pressure rollers 55. The upper pressure rollers 55 are also conical rollers. The diameters of the two ends of the upper pressure rollers 55 are different. The diameter of the end face of the upper pressure rollers 55 away from the fourth mounting block 52 is smaller than the diameter of the end face near the fourth mounting block 52.

[0039] Both ends of the upper pressure roller 55 are equipped with first springs 56, which are sleeved on the spline shaft 54. When there is no external force, the two sets of first springs 56 push the upper pressure roller 55 to remain in the middle position of the spline shaft 54. When the upper pressure roller 55 slides, one set of first springs 56 contracts, and the other set of first springs 56 is stretched. After the external force is released, the two sets of first springs 56 drive the upper pressure roller 55 back to its original position. The direction of movement of the upper pressure roller 55 is... Figure 6 The "B" direction in the text.

[0040] Furthermore, a liftable pressure plate 57 is provided below the upper support 5. An array of telescopic rods 58 are provided between the pressure plate 57 and the upper support 5. A second spring 581 is sleeved on the outside of each telescopic rod 58. The top end of the telescopic rod 58 is fixedly connected to the upper support 5, and the bottom end of the telescopic rod 58 is fixedly connected to the pressure plate 57.

[0041] The working principle of this utility model:

[0042] In use, the conveyor belt 11 conveys the fabric 3 forward. The fabric 3 passes under the pressure plate 57 on both sides and enters the space between the lower pressure roller 44 and the upper pressure roller 55. The electric cylinder 43 pulls the upper support 5 along the belt. Figure 6 When the rotation direction "A" is turned and the fabric 3 is lowered, the lower pressure roller 44 and the upper pressure roller 55 slightly clamp the side of the fabric 3 and then the electric cylinder 43 stops running. Then the conveyor belt 11 and the motor 541 start to drive the fabric 3 forward synchronously. The fabric 3 stops after reaching the designated position.

[0043] Then, the electric cylinder 43 pulls the upper support 5 to continue to descend. At this time, since the lower pressure roller 44 and the upper pressure roller 55 have already made contact, the continued descent of the upper support 5 will cause the upper pressure roller 55 to slide towards the smaller diameter of the lower pressure roller 44. The spring on the side of the upper pressure roller 55 near the motor 541 will contract, and the pressure between the lower pressure roller 44 and the upper pressure roller 55 will increase, thereby stretching the fabric 3 to both sides. As the upper support 5 continues to rotate and descend, the pressure plate 57 contacts the fabric 3 and causes the fabric 3 to be completely pressed onto the conveyor belt 11.

[0044] After the fabric 3 is positioned, the three-axis laser cutting device 2 is started to perform laser cutting. After the cutting is completed, the cut backpack leather component is removed manually or by a robotic arm. The above operation is repeated until all of the fabric 3 has been cut.

[0045] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A fabric cutting and positioning device for backpack production, comprising a belt conveyor (1), characterized in that: The belt conveyor (1) is equipped with a three-axis laser cutting device (2) on the outside. The belt conveyor (1) is provided with arrayed positioning modules on both sides. The positioning module includes a lower support (4) and an upper support (5). The lower support (4) and the upper support (5) are rotatably connected. The lower support (4) is fixedly connected to the side of the belt conveyor (1). The lower support (4) has a first slot and a second slot (45) inside. The first slot is equipped with an electric cylinder (43), and the second slot (45) is equipped with multiple sets of pressure rollers (44). The upper support (5) has a hollowed-out third slot and a fourth slot (53). The third slot has a fixedly connected motor (541), and the fourth slot (53) has multiple sets of splined shafts (54). The number of motors (541) and splined shafts (54) is the same as the number of lower pressure rollers (44). The motors (541) drive the splined shafts (54) to rotate. The splined shafts (54) are equipped with splined upper pressure rollers (55). The upper support (5) is provided with a liftable pressure plate (57) below it.

2. The fabric cutting and positioning device for backpack production according to claim 1, characterized in that: The belt conveyor (1) is equipped with a rotating conveyor belt (11) inside, and a support platform is provided inside the conveyor belt (11) to support the upper surface of the conveyor belt (11) horizontally.

3. The fabric cutting and positioning device for backpack production according to claim 1, characterized in that: The triaxial laser cutting device (2) performs laser cutting on the fabric (3) conveyed by the conveyor belt (11).

4. The fabric cutting and positioning device for backpack production according to claim 1, characterized in that: The lower bracket (4) is provided with a first mounting block (41) fixedly connected at the upper end, and the upper bracket (5) is provided with a fourth mounting block (52) fixedly connected at the lower end. The fourth mounting block (52) is rotatably connected to the first mounting block (41).

5. A fabric cutting and positioning device for backpack production according to claim 4, characterized in that: The lower support (4) is provided with a first support (42) fixedly connected at the lower end, the electric cylinder (43) is provided with a second mounting block (431) fixedly connected at the tail end, the electric cylinder (43) is provided with a third mounting block (432) fixedly connected at the telescopic end, the second mounting block (431) is rotatably connected to the first support (42), and a fifth mounting block (51) fixedly connected is also provided inside the third slot, the fifth mounting block (51) is rotatably connected to the third mounting block (432).

6. A fabric cutting and positioning device for backpack production according to claim 5, characterized in that: The lower pressure wheel (44) is rotatably connected to the second slot (45). The lower pressure wheel (44) and the upper pressure wheel (55) are conical wheels, and their installation directions are opposite.

7. A fabric cutting and positioning device for backpack production according to claim 6, characterized in that: The upper pressure roller (55) is provided with a first spring (56) at both ends, and the first spring (56) is sleeved on the spline shaft (54).

8. A fabric cutting and positioning device for backpack production according to claim 7, characterized in that: The pressure plate (57) and the upper bracket (5) are provided with an array of telescopic rods (58), and each telescopic rod (58) is fitted with a second spring (581) on its outer side.