Cloth and leather automatic line drawing system based on linear array vision and elastic pressing net

Abstract

A cloth and leather automatic line drawing system based on linear array vision and an elastic pressing net comprises a rack, a material stacking module lifting feeding module, a rotary feeding module and a belt conveying module are sequentially arranged on the rack from front to back, and the material stacking module lifting feeding module is used for feeding operation of multiple materials; in conclusion, by means of the modular integration and elastic pressing net cooperative control technology, the precision and efficiency problems in flexible material machining are solved in a breakthrough mode, the equipment structure is simplified by 60% or above, and the maintenance cost is remarkably reduced; by combining high-precision linear array vision and dynamic tension adjustment, sub-millimeter-level line drawing positioning and multi-material compatibility are achieved, and special-shaped curved surface materials such as leather and TPU are adapted; the full-automatic assembly line design enables the processing efficiency of a single piece to be improved by nearly three times, the instantaneous curing process is matched, the energy consumption is reduced by 40% while 99.5% of the yield is guaranteed, and an efficient, stable and green industrial-grade solution is provided for the field of flexible manufacturing.

Description

Technical Field

[0001] The present invention belongs to the technical field of automatic line drawing equipment, and particularly relates to an automatic cloth and leather material line drawing system based on linear array vision and elastic mesh pressing. Background Art

[0002] In industries such as shoemaking, luggage, clothing, and automotive interiors, the demand for precise printing and scanning of cloth and leather materials is increasing day by day. However, existing line drawing equipment has many problems, such as complex structures due to numerous components, difficult maintenance, high costs, large volumes occupying excessive production space, long transfer cycles when processing multiple pieces of materials at once, affecting efficiency, large visual recognition ranges prone to pattern distortion, and difficulty in achieving precise line drawing for some special materials due to their material properties. These problems seriously affect production efficiency and product quality. Summary of the Invention

[0003] The present invention aims to provide an automatic cloth and leather material line drawing system based on linear array vision and elastic mesh pressing to solve the technical problems of low production efficiency and poor product quality caused by many problems in existing line drawing equipment.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: An automatic cloth and leather material line drawing system based on linear array vision and elastic mesh pressing, comprising a frame. On the frame, a stacking module lifting and feeding module, a rotary feeding module, and a belt conveying module are sequentially arranged from front to back. The stacking module lifting and feeding module is used for the feeding operation of multiple materials, and the rotary feeding module is used to send the materials on the stacking module lifting and feeding module to the belt conveying module one by one; A contour acquisition module, an inkjet line drawing module, and a gantry mesh pressing module are also arranged on the frame. The contour acquisition module is used to acquire the outer contour of the material and transmit the data to the inkjet line drawing module; the inkjet line drawing module is used to perform inkjet line drawing according to the acquired outer contour features of the material; The gantry mesh pressing module includes a first servo motor, a mesh pressing part, and two gantry frames. A plurality of rotating shafts are rotatably installed on both gantry frames. Sprockets are provided at both ends of all the rotating shafts. The mesh pressing part is made up of a plurality of fishing lines arranged in parallel. Chains are arranged on the corresponding two sides of the mesh pressing part. The mesh pressing part is wound around all the rotating shafts, and the chains on both sides of the mesh pressing part are arranged on all the sprockets. The lower part of the mesh pressing part is parallel and located directly above the belt conveying module. The first servo motor is in transmission connection with one of the rotating shafts.

[0005] Furthermore, the lifting and loading module of the stacked material module includes a support plate and a material limiting component. A lead screw lifting module and a second servo motor are installed on the support plate. The second servo motor is used to drive the lead screw lifting module. A material carrying platform is installed on the slider of the lead screw lifting module. Driven by the second servo motor, the slider of the lead screw lifting module moves in the vertical direction. Opposite sides of the material carrying platform are correspondingly installed with opposed photoelectric sensors. The material limiting component is used to limit the position of the material on the material carrying platform.

[0006] Furthermore, the material limiting component includes a plurality of electromagnet suction seats. After being electrified, the electromagnet suction seats can be adsorbed on the support plate. A material limiting column is installed on the electromagnet suction seat. A plurality of guide holes are opened on the support plate. The material limiting columns are arranged in one-to-one correspondence with the guide holes. The upper end of the material limiting column penetrates through the corresponding guide hole.

[0007] Furthermore, the rotary feeding module includes a robotic arm. A suction cup is installed at the end of the push rod of the robotic arm.

[0008] Furthermore, a pressure roller is also installed on the frame. The pressure roller is located between the robotic arm and the gantry screen pressing module.

[0009] Furthermore, the contour acquisition module includes a light source fixing frame. The light source fixing frame is installed on the frame and straddles the lower part of the screen pressing part. A light source part is installed on the light source fixing frame. The light source part is located directly above the lower part of the screen pressing part. A slit hole is opened on the light source part. A camera gantry is installed on the upper surface of the light source part. A photographing camera is installed on the camera gantry. The lens part of the photographing camera faces the slit hole.

[0010] Furthermore, a box-shaped protective cover is installed on the outside of the frame. The frame and all components thereon are located inside the box-shaped protective cover. A loading opening is opened on the front side of the box-shaped protective cover.

[0011] Furthermore, the automated cloth and leather material line drawing system based on linear array vision and elastic screen pressing further includes an oven. The oven is located at the rear end of the belt conveying module.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the modular integration and collaborative control technology of elastic screen pressing, the present invention has breakthroughly solved the problems of accuracy and efficiency in the processing of flexible materials. The equipment structure is streamlined by more than 60%, and the maintenance cost is significantly reduced; combined with high-precision linear array vision and dynamic tension adjustment, sub-millimeter-level line drawing positioning and multi-material compatibility are realized, and it is suitable for special-shaped curved surface materials such as leather and TPU; the full-automatic production line design improves the single-piece processing efficiency by nearly 3 times. Combined with the instantaneous curing process, while ensuring a product qualification rate of 99.5%, the energy consumption is reduced by 40%, providing an efficient, stable and green industrial-level solution for the flexible manufacturing field. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the accompanying drawings: Figure 1 is an axonometric view of the automated cloth and leather material drawing system based on linear array vision and elastic pressure netting of the present invention; Figure 2 is a structural schematic diagram of the automated cloth and leather material drawing system based on linear array vision and elastic pressure netting after removing the box-shaped shield; Figure 3 is a structural schematic diagram of the gantry pressure netting module; Figure 4 is a structural schematic diagram of the stacking module lifting and loading module; Figure 5 is a structural schematic diagram of the contour acquisition module; Figure 6 is an axonometric view of the inkjet drawing module. Specific embodiments

[0014] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0015] The following further describes the present invention in detail in conjunction with the embodiments.

[0016] As Figures 1-6 shown, a specific embodiment of the automated cloth and leather material drawing system based on linear array vision and elastic pressure netting provided by the present invention: The automated cloth and leather material drawing system based on linear array vision and elastic pressure netting includes a frame 1. A stacking module lifting and loading module 2, a rotary feeding module, and a belt conveying module 3 are sequentially arranged on the frame 1 from front to back. The stacking module lifting and loading module 2 is used for the feeding operation of multiple materials, and the rotary feeding module is used to send the materials on the stacking module lifting and loading module 2 to the belt conveying module 3 one by one; A contour acquisition module 4, an inkjet drawing module 5, and a gantry pressure netting module 6 are also arranged on the frame 1. The contour acquisition module 4 is used to collect the outer contour of the material and transmit the data to the inkjet drawing module 5; the inkjet drawing module 5 is used to perform inkjet drawing according to the collected outer contour characteristics of the material. The inkjet drawing module 5 is a conventional existing technology, and its specific structure and working principle will not be elaborated here; the above modules realize data interaction through an industrial bus and are coordinated by a central controller (PLC).

[0017] In addition, a box-type shield 7 is installed on the outer side of the frame 1 , the frame 1 and all components thereon are located inside the box-type shield 7 , and a loading port 8 is opened on the front side of the box-type shield 7 .

[0018] The following is a detailed description of each core module: like Figure 3 As shown, the gantry pressing module 6 includes a first servo motor 9, a pressing part 10 and two gantries 11, a plurality of rotating shafts are rotatably mounted on the two gantries 11, sprockets 12 are provided at both ends of all the rotating shafts, the pressing part 10 is made of a plurality of fishing lines in parallel, chains 13 are provided on the corresponding two sides of the pressing part 10, the pressing part 10 is wound around all the rotating shafts, and the chains 13 on both sides of the pressing part 10 are provided on all the sprockets 12, the lower part of the pressing part 10 is located parallel to and directly above the belt conveyor module 3, and the first servo motor 9 is drivingly connected to one of the rotating shafts.

[0019] like Figure 4 As shown, the stacking module lifting and loading module 2 includes a support plate 14 and a material limiting assembly, a screw lifting module 15 and a second servo motor 16 are installed on the support plate 14, the second servo motor 16 is used to drive the screw lifting module 15, and a material carrying platform 17 is installed on the slider of the screw lifting module 15. Under the drive of the second servo motor 16, the slider of the screw lifting module 15 moves in a vertical direction, and corresponding photoelectric sensors 18 are installed on the opposite sides of the material carrying platform 17. The material limiting assembly is used to limit the position of the material on the material carrying platform 17.

[0020] The material limiting assembly includes a plurality of electromagnet suction seats 19, which can be adsorbed on the support plate 14 after being energized. A material limiting column 20 is installed on the electromagnet suction seat 19, and a plurality of guide holes 21 are opened on the support plate 14. The material limiting column 20 and the guide holes 21 are arranged one by one, and the upper end of the material limiting column 20 is passed through the corresponding guide hole 21.

[0021] In the initial state, the second servo motor 16 drives the material carrier 17 to the low position. After the operator stacks 20-30 pieces of material through the loading port 8, the material limit column 20 is adjusted into place according to the material size and powered on to lock. Every time a piece of material is taken out, the photoelectric sensor 18 triggers the screw lifting module 15 to lift 3mm (single-layer material thickness) to keep the top layer of material at a constant material taking height.

[0022] The rotary feeding module comprises a mechanical arm 22 , and a suction cup 23 is installed at the end of the push rod of the mechanical arm 22 .

[0023] like Figure 5As shown in the figure, the contour acquisition module 4 includes a light source fixing bracket 24. The light source fixing bracket 24 is installed on the frame 1 and straddles the lower part of the screen pressing part 10. A light source part 25 is installed on the light source fixing bracket 24. The light source part 25 is located directly above the lower part of the screen pressing part 10. A slit hole 26 is opened on the light source part 25. A camera gantry 27 is installed on the upper surface of the light source part 25, and a photographing camera 28 is installed on the camera gantry 27. The lens part of the photographing camera 28 faces the slit hole 26.

[0024] A material pressing roller 29 is also installed on the frame 1. The material pressing roller 29 is located between the robotic arm 22 and the gantry screen pressing module 6.

[0025] The working process of the automatic cloth and leather material line drawing system based on linear array vision and elastic screen pressing in this embodiment is as follows: Place multiple pieces of shoe leather materials on the material carrying platform 17 in a stacked manner (at this time, the uppermost shoe leather material is located between the opposed photoelectric sensors 18). Move the material limiting posts 20 along the guide holes 21, and use the upper ends of the multiple material limiting posts 20 to limit the stacked shoe leather materials to prevent the stacked shoe leather materials from collapsing. Then, energize each electromagnet suction seat 19, and the electromagnet suction seat 19 can be adsorbed on the support plate 14. Next, the suction cup 23 adsorbs the uppermost shoe leather material, the robotic arm 22 rotates 180°, the suction cup 23 releases the shoe leather material, and the shoe leather material falls on the conveyor belt of the belt conveying module 3. At the same time, the opposed photoelectric sensors 18 detect that there is no material in the middle and transmit this information to the second servo motor 16. The second servo motor 16 controls the material carrying platform 17 to rise a certain distance through the lead screw lifting module 15, and raises the next piece of shoe leather material to between the opposed photoelectric sensors 18; The belt conveying module 3 starts to convey the shoe leather material. The shoe leather material first passes through the material pressing roller 29, and the material pressing roller 29 flattens the shoe leather material. Then, the shoe leather material enters below the screen pressing part 10. The screen pressing part 10 starts to drive through the first servo motor 9, the chain 13, and the sprocket 12. The lower part of the screen pressing part 10 has the same transmission direction as the conveyor belt of the belt conveying module 3, and finally jointly clamps multiple pieces of shoe leather materials and conveys them forward. During the conveying process, the light source part 25 provides illumination, the photographing camera 28 takes pictures to collect the outer contour of the material and transmits the data to the inkjet line drawing module 5. The inkjet line drawing module 5 performs inkjet line drawing according to the received graphic contour features. Thus, the line drawing operation is completed. Optionally, an oven 30 can be set at the rear end of the belt conveying module 3. The shoe leather material after line drawing enters the oven (60°C hot air circulation, residence time 8s), and finally is palletized by the end manipulator.

[0026] It should be noted that, in this document, terms such as "including", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not explicitly listed, or elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated cloth and leather material line-drawing system based on linear array vision and elastic screen pressing, characterized in that: The machine comprises a frame, on which a stacking module lifting and loading module, a rotary feeding module and a belt conveying module are arranged in sequence from front to back. The stacking module lifting and loading module is used for loading multiple materials, and the rotary feeding module is used for feeding the materials on the stacking module lifting and loading module to the belt conveying module one by one. The frame is also provided with a contour acquisition module, an inkjet line drawing module and a gantry screen pressing module. The contour acquisition module is used to acquire the material shape contour and transmit the data to the inkjet line drawing module; the inkjet line drawing module is used to perform inkjet line drawing according to the acquired material shape contour features; The gantry net pressing module includes a first servo motor, a net pressing part and two gantries, a plurality of rotating shafts are rotatably installed on the two gantries, sprockets are provided at both ends of all the rotating shafts, the net pressing part is made of a plurality of fishing lines in parallel, chains are provided on the corresponding two sides of the net pressing part, the net pressing part is wound around all the rotating shafts, and the chains on both sides of the net pressing part are provided on all the sprockets, the lower part of the net pressing part is located parallel to and directly above the belt conveyor module, and the first servo motor is drivingly connected to one of the rotating shafts.

2. The automated cloth and leather material line drawing system based on linear array vision and elastic mesh pressing according to claim 1, characterized in that: The stacking module lifting and loading module includes a support plate and a material limiting assembly, a screw lifting module and a second servo motor are installed on the support plate, the second servo motor is used to drive the screw lifting module, and a material carrying platform is installed on the slider of the screw lifting module. Under the drive of the second servo motor, the slider of the screw lifting module moves in a vertical direction, and corresponding photoelectric sensors are installed on the opposite sides of the material carrying platform. The material limiting assembly is used to limit the position of the material on the material carrying platform.

3. The automated cloth and leather material drawing system based on linear array vision and elastic mesh pressing according to claim 2, characterized in that: The material limiting assembly includes a plurality of electromagnet suction seats, which can be adsorbed on a support plate after being energized. A material limiting column is installed on the electromagnet suction seat, and a plurality of guide holes are opened on the support plate. The material limiting column and the guide holes are arranged one by one, and the upper end of the material limiting column is passed through the corresponding guide hole.

4. The automated cloth and leather material line drawing system based on linear array vision and elastic pressure net according to claim 3, wherein: The rotary feeding module comprises a mechanical arm, and a suction cup is installed at the end of a push rod of the mechanical arm.

5. The automated cloth and leather material line drawing system based on linear array vision and elastic pressure screen according to claim 4, characterized in that: A pressing roller is also installed on the frame, and the pressing roller is located between the mechanical arm and the gantry screen pressing module.

6. The automated cloth and leather material line drawing system based on linear array vision and elastic pressure screen according to claim 5, characterized in that: The contour acquisition module includes a light source fixing frame, which is installed on the frame and spans the lower part of the screen pressing part. A light source part is installed on the light source fixing frame. The light source part is located directly above the lower part of the screen pressing part. A slit hole is opened on the light source part. A camera gantry is installed on the upper surface of the light source part. A camera is installed on the camera gantry, and the lens part of the camera faces the slit hole.

7. The automated cloth and leather material line drawing system based on linear array vision and elastic pressure net according to claim 6, characterized in that: A box-type protective cover is installed on the outer side of the frame, the frame and all components thereon are located in the box-type protective cover, and a feeding port is opened on the front side of the box-type protective cover.

8. The automated cloth and leather material line drawing system based on linear array vision and elastic mesh pressing according to claim 7, characterized in that: The module also includes an oven, which is located at the rear end of the belt conveyor module.

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