Visual inspection cloth laser cutting process

Abstract

The invention belongs to the technical field of loudspeaker box cloth cutting processes, and particularly discloses a visual inspection cloth laser cutting process which comprises the following steps that S1, cloth to be cut is placed on a carrier, and a pressing plate covers the carrier to press the cloth; s2, controlling the camera to move, enabling the camera to be aligned with the area, in the cutting hole of the pressing plate, of the cloth, capturing a texture image of the cloth, and analyzing the texture of the cloth to generate a texture distribution diagram; and S3, controlling a laser cutting head to cut the cloth according to the generated line data. Cloth is pressed on a carrier through a pressing plate, a cutting area is exposed, a camera is combined to dynamically capture a line image, high-precision real-time analysis is conducted on spiral lines, continuous track data capable of guiding movement of a laser cutting head is generated, and the real-time trend of the spiral lines is dynamically recognized and matched. The laser cutting head is controlled to move according to a preset movement track, cutting lines are prevented from deviating from lines, and the situation that the appearance of a finished product is seriously affected due to sawtooth or dislocation of the edge of wrapping cloth is prevented.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sound box cloth cutting process, and particularly relates to a visual detection cloth laser cutting process. BACKGROUND

[0002] In the field of textile manufacturing and intelligent processing, cloth laser cutting technology has been widely used in the production of products such as clothing, home decoration, and industrial covering (such as sound box cloth) due to its advantages of high efficiency, precision, and non-contact processing. However, existing laser cutting processes still have significant technical bottlenecks when dealing with specific types of cloth, especially for cutting requirements of barrel cloth (such as sound box cloth) with complex spiral weave patterns. Existing methods are difficult to meet the requirements of high-quality production.

[0003] Barrel cloth such as sound box cloth usually adopts a spiral weaving process, and its pattern presents nonlinear and irregular curve characteristics. This structure leads to the following problems during laser cutting of the cloth:

[0004] Pattern alignment difficulty: existing laser cutting relies on fixed coordinate systems or pre-set patterns for cutting, which cannot dynamically identify and match the real-time direction of spiral patterns, resulting in deviation of the cutting line from the pattern, jagged or misaligned edges of the cloth, and serious impact on the appearance of the finished product.

[0005] Insufficiency of visual detection technology: although some existing technologies introduce camera-assisted positioning, their function is limited to rough identification of cloth edges or fixed marker points, and cannot perform high-precision real-time analysis of spiral patterns.

[0006] Therefore, the inventors have designed a cloth laser cutting process to solve the above problems. SUMMARY

[0007] The purpose of the present application is to provide a visual detection cloth laser cutting process that can perform high-precision real-time analysis of spiral patterns, dynamically identify and match the real-time direction of spiral patterns, avoid deviation of the cutting line from the pattern, prevent jagged or misaligned edges of the cloth, and seriously affect the appearance of the finished product.

[0008] In order to achieve the above purpose, a technical solution adopted by the present application is as follows:

[0009] A visual detection cloth laser cutting process, comprising the following steps:

[0010] S1, placing the cloth to be cut on the carrier in the working area of the machine base, covering the pressing plate, and pressing the cloth with the pressing plate, while ensuring that the cutting area of the cloth is exposed to the cutting hole of the pressing plate;

[0011] S2, the computer starts and enters the control software interface, moves the camera on the machine stand to align the area of the cloth in the cutting hole through software control, captures the cloth grain image, analyzes the cloth grain in real time, and generates a high-precision grain distribution map;

[0012] S3, the computer controls the laser cutting head to move according to the preset motion trajectory according to the generated grain data, and the laser cutting head cuts the cloth according to the preset laser emission power and cutting speed.

[0013] As an improvement of the visual detection cloth laser cutting process of the application, the carrier includes a bottom plate, two side plates and a bearing plate, the bottom plate is fixed on the working panel of the machine stand, and the bearing plate is located directly above the bottom plate and is fixedly connected with the bottom plate through the two side plates.

[0014] As an improvement of the visual detection cloth laser cutting process of the application, the top of the bearing plate is provided with two long strip-shaped convex pads, and the pressing plate is positioned on the two convex pads and forms a space for placing the cloth between the top of the bearing plate and the bearing surface of the bearing plate.

[0015] As an improvement of the visual detection cloth laser cutting process of the application, the two convex pads and the bearing plate are integrally formed of the same material, and the two convex pads and the pressing plate are magnetically connected.

[0016] As an improvement of the visual detection cloth laser cutting process of the application, two positioning pins are arranged on the two convex pads, two limiting holes are arranged on the pressing plate, and the two positioning pins and the two limiting holes are movably and limitingly connected in one-to-one correspondence.

[0017] As an improvement of the visual detection cloth laser cutting process of the application, the carrier further includes a supporting plate and two supporting plates, the supporting plate is inclinedly fixed on the bottom plate through the two supporting plates, and the supporting plate is spaced apart from the bearing plate.

[0018] As an improvement of the visual detection cloth laser cutting process of the application, the supporting plate is triangular, one end of the supporting plate close to the bearing plate abuts against the bottom plate, and the height of the end of the supporting plate away from the bearing plate is greater than the height of the bearing plate.

[0019] As an improvement of the visual detection cloth laser cutting process of the application, a through hole is arranged on the supporting plate, a boss is arranged on the end face of the supporting plate facing the bearing plate, and the boss is annular and arranged along the edge of the through hole.

[0020] As an improvement of the visual detection cloth laser cutting process of the application, the cutting hole is long strip-shaped.

[0021] As an improvement of the visual detection cloth laser cutting process of the application, the camera and the laser cutting head are fixed on the same slide, which is transversely and longitudinally slidingly arranged in the working area of the machine base.

[0022] Compared with the prior art, the visual detection cloth laser cutting process of the application can press the cloth on the carrier by the pressing plate and expose the cutting area, dynamically capture the pattern image by the camera, perform high-precision real-time analysis on the spiral pattern, generate continuous trajectory data that can guide the movement of the laser cutting head, dynamically identify and match the real-time direction of the spiral pattern, control the laser cutting head to move according to the preset movement trajectory, avoid the deviation of the cutting line from the pattern, prevent the sawtooth or misalignment of the cloth edge, and seriously affect the appearance of the finished product, thereby improving the concentricity and yield of the cloth after being assembled to the finished product. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a perspective view of the visual detection cloth laser cutting machine of the application;

[0024] Figure 2 is another perspective view of the visual detection cloth laser cutting machine of the application;

[0025] Figure 3 is a perspective enlarged view of the carrier and the slide of the application;

[0026] Figure 4 is a perspective enlarged view of the carrier with the cloth pressed in the application;

[0027] Figure 5 is a perspective exploded enlarged view of the carrier and the pressing plate in the application;

[0028] Figure 6 is a perspective enlarged view of the pressing plate of the application;

[0029] Figure 7 is an enlarged schematic view of the cloth in the cutting state in the application;

[0030] Figure 8 is Figure 7 is an enlarged view of A in FIG.

[0031] ILLUSTRATIVE DESCRIPTION

[0032] 1, base; 11, display screen; 2, sliding seat; 21, horizontal moving linear module; 22, vertical moving linear module; 23, camera; 24, laser cutting head; 3, carrier; 31, bottom plate; 32, side plate; 33, bearing plate; 331, bearing surface; 332, convex pad; 333, positioning pin; 334, lower magnet; 4, pressing plate; 41, cutting hole; 42, limiting hole; 43, upper magnet; 5, supporting plate; 51, through hole; 52, boss; 53, support plate; 6, cloth; 61, texture point; 62, cutting line. DETAILED DESCRIPTION

[0033] The embodiments of the present application will be described in detail below with reference to the accompanying drawings, which are provided for reference and illustration only, and do not constitute a limitation on the scope of patent protection of the present application.

[0034] Referring to Figures 1 to 8 A visual detection cloth laser cutting process, comprising the following steps:

[0035] S1, cloth 6 placement and fixation: place the cloth 6 to be cut flat on the carrier 3 in the working area of the base 1, ensure that the cloth 6 is not wrinkled, twisted, etc., then cover the pressing plate 4, and use the pressing plate 4 to evenly press the cloth 6, so that the cloth 6 remains stable during cutting, and at the same time, ensure that the area to be cut of the cloth 6 is accurately exposed in the cutting hole 41 of the pressing plate 4, the size and shape of the cutting hole 41 should be designed according to the actual cutting requirements;

[0036] S2, texture capture and analysis: start the computer and enter the control software interface, control the camera 23 on the base 1 through the software to accurately align the area of the cloth 6 in the cutting hole 41, capture the texture image of the cloth 6, and transmit the captured image data to the computer in real time, the computer uses a special image analysis algorithm to analyze the texture of the cloth 6 in real time, identifies the direction, density, etc. Features of the texture, and generates a high-precision texture distribution map. During the analysis process, if the texture is found to be abnormal or not meet the preset requirements, the computer will issue a warning prompt so that the operator can handle it in time;

[0037] S3, laser cutting: the computer accurately controls the laser cutting head 24 to move according to the preset motion trajectory parameters based on the generated texture data, and in the moving process, the laser cutting head 24 cuts the cloth 6 according to the preset laser emission power and cutting speed, to ensure that the cutting edge is neat and smooth, and the cutting precision meets the requirements. During the cutting process, the computer monitors the working state and cutting effect of the laser cutting head 24 in real time, and adjusts the cutting parameters or stops the cutting in time if cutting deviation or abnormal conditions are found.

[0038] Referring to Figures 1 to 8The visual detection cloth laser cutting process of the application is formed based on a visual detection cloth laser cutting machine, which comprises a base 1, a camera 23, a laser cutting head 24, a carrier 3 and a pressing plate 4. The carrier 3 is located on the working panel of the base 1, the camera 23 and the laser cutting head 24 are both located above the carrier 3, and the pressing plate 4 is limitedly pressed on the cloth 6 on the top of the carrier 3.

[0039] With reference to Figure 1 and Figure 2 , the inside of the base 1 is provided with a computer, the display screen 11 of the computer is located on the right side of the base 1, two longitudinal linear modules 22 are fixedly arranged on the working panel of the base 1 at intervals, each longitudinal linear module 22 is arranged along the longitudinal direction (i.e. Y direction) of the base 1, and a transverse linear module 21 is slidably connected between the two longitudinal linear modules 22, the transverse linear module 21 is arranged along the transverse direction (i.e. X direction) of the base 1, and the carrier 3 is located between the two longitudinal linear modules 22.

[0040] With reference to Figure 1 , Figure 2 and Figure 3 , the camera 23 and the laser cutting head 24 are both fixed on the same sliding seat 2, which is slidably arranged on the working area of the base 1 in the transverse and longitudinal directions. In the application, the sliding seat 2 is specifically slidably arranged on the transverse linear module 21, the two longitudinal linear modules 22 jointly drive the transverse linear module 21, the sliding seat 2 and the camera 23 and the laser cutting head 24 on the sliding seat 2 to move along the longitudinal direction of the base 1, and the transverse linear module 21 drives the sliding seat 2 and the camera 23 and the laser cutting head 24 on the sliding seat 2 to move along the transverse direction of the base 1, so as to control the transverse and longitudinal movement of the camera 23 and the laser cutting head 24.

[0041] With reference to Figures 3 to 6 , the carrier 3 comprises a bottom plate 31, two side plates 32 and a bearing plate 33. The bottom plate 31 is fixed on the working panel of the base 1, the bearing plate 33 is located directly above the bottom plate 31 and is fixedly connected with the bottom plate 31 through the two side plates 32, the two side plates 32 are located between the bearing plate 33 and the bottom plate 31, the top of the bearing plate 33 is provided with two long strip-shaped convex pads 332, the two convex pads 332 are integrally formed with the bearing plate 33, each convex pad 332 is provided with two lower magnets 334 and a positioning pin 333, and the positioning pin 333 on the same convex pad 332 is located between the two lower magnets 334.

[0042] With reference to Figure 3 , Figure 4 and Figure 5The carrier 3 further comprises a supporting plate 5 and two supporting plates 53, the supporting plate 5 is fixedly inclined on the bottom plate 31 through the two supporting plates 53, the supporting plate 5 is spaced apart from the bearing plate 33, each supporting plate 53 is triangular, one end of the supporting plate 5 close to the bearing plate 33 abuts against the bottom plate 31, the height of the end of the supporting plate 5 far from the bearing plate 33 is greater than the height of the bearing plate 33, a through hole 51 is arranged on the supporting plate 5, and a boss 52 is arranged on the end face of the supporting plate 5 facing the bearing plate 33, the boss 52 is annular and arranged at the edge of the through hole 51.

[0043] With reference to Figure 5 and Figure 6 The pressing plate 4 is rectangular, the pressing plate 4 is positioned on the two protruding pads 332 and forms a space between the pressing plate 4 and the bearing surface 331 on the top of the bearing plate 33 for placing the cloth 6, the cutting hole 41 is long strip-shaped and horizontally arranged on the pressing plate 4, the pressing plate 4 is magnetically connected with the two protruding pads 332, specifically, two limiting holes 42 are arranged on the pressing plate 4, two upper magnets 43 are arranged on the bottom of the pressing plate 4, when the cloth 6 is placed on the bearing surface 331 on the top of the bearing plate 33, the pressing plate 4 is placed on the two protruding pads 332, the positioning pins 333 on the two protruding pads 332 are respectively inserted into the two limiting holes 42 of the pressing plate 4, the two positioning pins 333 and the two limiting holes 42 are correspondingly movably connected, at the same time, the two lower magnets 334 on the two protruding pads 332 are correspondingly magnetically connected with the two upper magnets 43 on the bottom of the pressing plate 4, so that the cutting end of the cloth 6 can be pressed, when the cloth 6 is too long, the part of the cloth 6 beyond the bearing plate 33 is located on the inclined supporting plate 5, so that the part of the cloth 6 beyond the bearing plate 33 is prevented from being displaced due to drooping during the cutting process of the cloth 6 by the laser cutting head 24.

[0044] With reference to Figure 7 and Figure 8 The surface of the cloth 6 is provided with a plurality of texture points 61, and the cutting line 62 of the laser cutting head 24 is a line formed by connecting a row of texture points 61 on the cloth 6.

[0045] The visual detection cloth laser cutting process of the application can press the cloth 6 on the carrier 3 by the pressing plate 4 and expose the cutting area, dynamically capture the texture image by the camera 23, perform high-precision real-time analysis on the spiral texture, generate continuous trajectory data that can guide the movement of the laser cutting head 24, dynamically identify and match the real-time direction of the spiral texture, control the laser cutting head 24 to move according to the preset movement trajectory, avoid the deviation of the cutting line 62 from the texture, prevent the sawtooth or misalignment of the cloth edge, and seriously affect the appearance of the finished product, thereby improving the concentricity and yield of the cloth 6 after being assembled to the finished product.

[0046] The above merely provides the preferred embodiment of the present application, and cannot allude to the protection scope of the present application; therefore, any equivalent change made in the patent application scope of the present application still falls within the scope of the present application.

Claims

1. A visual inspection fabric laser cutting process, characterized in that, Includes the following steps: S1. Place the fabric to be cut on the carrier in the working area of ​​the machine base, cover it with the pressure plate, and use the pressure plate to press down the fabric. At the same time, ensure that the area of ​​the fabric to be cut is exposed in the cutting hole of the pressure plate. S2. The computer starts up and enters the control software interface. The software controls the camera on the machine base to move and aim at the area of ​​the fabric in the cutting hole to capture the texture image of the fabric. The fabric texture is then analyzed in real time to generate a high-precision texture distribution map. S3. Based on the generated texture data, the computer controls the laser cutting head to move along a preset motion trajectory. The laser cutting head cuts the fabric according to the preset laser emission power and cutting speed.

2. The visual inspection fabric laser cutting process according to claim 1, characterized in that, The carrier includes a base plate, two side plates and a support plate. The base plate is fixed to the working panel of the machine base, and the support plate is located directly above the base plate and is fixedly connected to the base plate through the two side plates.

3. The visual inspection fabric laser cutting process according to claim 2, characterized in that, The top of the support plate is provided with two elongated convex pads spaced apart. The pressure plate is positioned on the two convex pads and forms a space for placing the fabric between it and the bearing surface of the top of the support plate.

4. The visual inspection fabric laser cutting process according to claim 3, characterized in that, The two protruding pads and the bearing plate are integrally formed from the same material, and the two protruding pads are magnetically connected to the pressure plate.

5. The visual inspection fabric laser cutting process according to claim 3, characterized in that, Each of the two protruding pads is provided with a positioning pin, and the pressure plate is provided with two limiting holes. The two positioning pins are connected to the two limiting holes in a one-to-one movable limiting manner.

6. The visual inspection fabric laser cutting process according to claim 2, characterized in that, The carrier also includes a pallet and two support plates. The pallet is obliquely fixed to the base plate by the two support plates, and the pallet and the support plate are spaced apart.

7. The visual inspection fabric laser cutting process according to claim 6, characterized in that, The support plate is triangular in shape, and the end of the support plate near the bearing plate presses against the bottom plate. The height of the end of the support plate away from the bearing plate is greater than the height of the bearing plate.

8. The visual inspection fabric laser cutting process according to claim 6, characterized in that, The pallet has a through hole, and the end face of the pallet facing the support plate has a boss, which is annular and located along the edge of the through hole.

9. The visual inspection fabric laser cutting process according to claim 1, characterized in that, The cutting hole is elongated.

10. The visual inspection fabric laser cutting process according to claim 1, characterized in that, The camera and the laser cutting head are fixed on the same slide, which is slidably positioned in the working area of ​​the machine base in both the horizontal and vertical directions.

Images