Machine vision on-line weft density detection device

Abstract

The utility model relates to the technical field of detection devices, in particular to a machine vision online weft density detection device. According to the technical scheme, the device comprises a base, and a detection table is fixedly arranged on the upper surface of the base; the supporting frame is arranged on the upper surface of the base, a mounting frame is fixedly arranged on one side of the supporting frame, a first air cylinder is mounted at the upper end of the mounting frame, the output end of the first air cylinder penetrates through the mounting frame and extends to be connected with a clamping block, and the clamping block is movably connected with the supporting frame in a sleeving mode; the support is fixedly arranged on one side of the clamping block, the support is movably sleeved with a measuring assembly used for detecting the weft density of the textile, a second air cylinder is fixedly installed on one side of the support, and the output end of the second air cylinder is fixedly connected with the measuring assembly. According to the utility model, the irradiation angles of a plurality of groups of light can be simultaneously adjusted, shadows on the surface of an object can be reduced or eliminated, especially when the object has a concave-convex structure, images are ensured to be clearer during weft density detection, so that the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a machine vision online weft density detection device. Background Art

[0002] An online weft density detection device with machine vision is an automated inspection device used in textile production. It primarily measures the weft density of a piece of fabric, specifically the number of weft threads per unit length. The lighting system is crucial for obtaining high-quality images in such devices. Existing devices use fixed-mount illumination lamps, which can create shadows when illuminating surfaces of varying materials, colors, and textures. This can particularly affect image clarity when illuminating objects with concave and convex surfaces, limiting the device's applicability and accuracy. Therefore, the present invention proposes an online weft density detection device with machine vision. Utility Model Content

[0003] The purpose of the utility model is to propose a machine vision online weft density detection device to address the problem in the background technology that the irradiation lamp of the existing machine vision online weft density detection device is fixedly installed, which results in shadows when irradiating the surface of objects with different materials, colors and textures. In particular, when the objects have concave and convex structures, the shadows will affect the clarity of the image, limiting the scope of application and accuracy of the detection device.

[0004] The technical solution of the present utility model is as follows: A machine vision online weft density detection device, comprising: a base, a detection platform is fixedly provided on the upper surface of the base; a support frame is arranged on the upper surface of the base, a mounting frame is fixedly provided on one side of the support frame, a first cylinder is installed on the upper end of the mounting frame, and the output end of the first cylinder passes through the mounting frame and extends to be connected with a clamping block, and the clamping block is movably connected to the support frame; a bracket is fixedly arranged on one side of the clamping block, a measuring component for detecting the weft density of textiles is movably connected on the bracket, a second cylinder is fixedly installed on one side of the bracket, and the output end of the second cylinder is fixedly connected to the measuring component.

[0005] Optionally, the measuring component includes a socket block, a guide groove is provided on one side of the socket block, a fixed block is fixedly provided on one side of the upper end of the socket block, a threaded adjustment rod is threaded through the fixed block, the lower end of the threaded adjustment rod is rotatably connected to a detection head, one side of the detection head is fixedly connected to the guide block, the guide block is slidably connected to the detection head, and the lower end of the socket block is fixedly connected to a lighting component for lighting.

[0006] Optionally, the lighting assembly includes a fixing ring, the outer wall of the fixing ring is movably sleeved with a first ring, the bottom surface of the first ring is provided with a plurality of grooves, the inner wall of the groove is provided with a sliding groove, a lighting lamp is rotatably provided on the bottom of the fixing ring, a connecting seat is fixedly provided on one side of the lighting lamp, a plurality of groups of fixing frames are fixedly provided on the bottom surface of the fixing ring, a second ring is rotatably provided between each group of fixing frames, the second ring is movably sleeved with a connecting rod, one end of the connecting rod is slidably connected to the sliding groove, and the other end of the connecting rod is slidably connected to the connecting seat.

[0007] Optionally, a display screen is mounted on the upper surface of the base, and the display screen is electrically connected to the detection head.

[0008] Optionally, a threaded rod is fixedly connected to the outer wall of the first collar, and a limiting nut is threadedly sleeved on the outer wall of the threaded rod.

[0009] Optionally, the chute is arranged at an angle.

[0010] Optionally, the bracket is arranged in an inverted "L"-shaped structure.

[0011] In summary, this application includes at least one of the following beneficial technical effects of the machine vision online weft density detection device:

[0012] The utility model drives the first ring to rotate on the outer wall of the fixed ring by pushing the threaded rod. The first ring pushes the connecting rod downward through the sliding groove inside the groove on the bottom surface. The connecting rod drives the lighting lamp to rotate through the connecting seat. The illumination angle of multiple groups of lights can be adjusted at the same time, which can reduce or eliminate the shadow on the surface of the object, especially when the object has a concave-convex structure, ensuring a clearer image during weft density detection, thereby improving the accuracy of detection.

[0013] Furthermore, the present invention can adjust the distance between the detection head and the lighting assembly by manually rotating the threaded adjustment rod to drive the detection head to move vertically, so as to make the image obtained by the detection clearer, thereby improving the measurement accuracy of the weft density. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a machine vision online weft density detection device of the utility model is given;

[0015] Figure 2 Give the utility model Figure 1 Schematic diagram of the structure of the measurement component;

[0016] Figure 3 Give the utility model Figure 2 Schematic diagram of the structure of the lighting component;

[0017] Figure 4 Give the utility model Figure 3 Schematic diagram of the partially split structure;

[0018] Figure 5 Give the utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0019] Reference numerals:

[0020] 1. Base; 2. Test bench; 3. Support frame; 4. Mounting frame; 5. First cylinder; 6. Clamp block; 7. Bracket;

[0021] 8. Measuring assembly; 81. Socket block; 82. Guide groove; 83. Fixing block; 84. Threaded adjustment rod; 85. Detection head; 86. Guide block;

[0022] 87. Lighting assembly; 871. Fixing ring; 872. Collar; 873. Groove; 874. Slide; 875. Lighting lamp; 876. Connecting seat; 877. Fixing bracket; 878. Collar; 879. Connecting rod;

[0023] 9. Second cylinder; 10. Display screen; 11. Threaded rod; 12. Limit nut. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate several embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this utility model belongs. The terms used in the specification of this utility model herein are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0028] Embodiment

[0029] As Figure 1 And Figure 2 As shown, a machine vision on-line weft density detection device proposed by this utility model includes: a base 1, on the upper surface of the base 1, a detection table 2 is fixedly arranged, and the detection table 2 is made of a transparent material to facilitate detecting the light transmission of the fabric; a support frame 3 arranged on the upper surface of the base 1, on one side of the support frame 3, a mounting frame 4 is fixedly arranged, and the mounting frame 4 is arranged in a "C" - shaped structure. At the upper end of the mounting frame 4, a first cylinder 5 is installed, and the output end of the first cylinder 5 penetrates through the mounting frame 4 and extends to be connected with a clamping block 6, which is convenient for driving the clamping block 6 to move vertically, so as to adjust the detection height. And the clamping block 6 is movably sleeved with the support frame 3 to improve the stability of the vertical movement of the clamping block 6; a bracket 7 fixedly arranged on one side of the clamping block 6, on the bracket 7, a measuring component 8 for detecting the weft density of textiles is movably sleeved. On one side of the bracket 7, a second cylinder 9 is fixedly installed, and the output end of the second cylinder 9 is fixedly connected with the measuring component 8 to facilitate adjusting the horizontal position of the measuring component 8.

[0030] As Figure 2 And Figure 3 As shown, the measuring component 8 includes a socket block 81, and the socket block 81 is movably sleeved with the bracket 7 to make its horizontal movement more stable. On one side of the socket block 81, a guide groove 82 is opened. On one side of the upper end of the socket block 81, a fixing block 83 is fixedly arranged. A threaded adjusting rod 84 is threaded through the fixing block 83. The lower end of the threaded adjusting rod 84 is rotatably connected with a detection head 85, which is convenient for adjusting the irradiation height of the detection head 85, so as to improve the accuracy of detection. On one side of the detection head 85, a guide block 86 is fixedly connected, and the guide block 86 is slidably connected with the detection head 85, which can guide the detection head 85 and make the vertical movement of the detection head 85 more stable. At the lower end of the socket block 81, a lighting component 87 for lighting is fixedly connected, which can provide good lighting for detection and improve the accuracy of detection.

[0031] As Figure 4 And Figure 5As shown, the lighting assembly 87 includes a fixed ring 871, and a sleeve groove is provided on the side wall of the fixed ring 871. A first sleeve ring 872 is movably sleeved in the sleeve groove on the outer wall of the fixed ring 871, so that the first sleeve ring 872 and the fixed ring 871 can be stably sleeved. The bottom surface of the first sleeve ring 872 is provided with a plurality of grooves 873, and the inner wall of the groove 873 is provided with a slide groove 874, and the slide groove 874 is a "T"-shaped structure. The bottom of the fixed ring 871 is provided with a lighting lamp 875 through a rotating seat to facilitate adjustment of the illumination angle of the lighting lamp 875. One side of the lighting lamp 875 A connecting seat 876 is fixedly provided, and multiple groups of fixing frames 877 are fixedly provided on the bottom surface of the fixing ring 871. A second ring 878 is provided between each group of fixing frames 877 through an axial rod rotation, so that the installation of the second ring 878 is more stable. The second ring 878 is movably connected with a connecting rod 879, which can stably limit and guide the connecting rod 879. One end of the connecting rod 879 is slidably connected to the slide groove 874, and the other end of the connecting rod 879 is slidably connected to the connecting seat 876, which can push the lighting lamp 875 to rotate, thereby quickly adjusting the illumination angle of multiple groups of lighting lamps 875.

[0032] Furthermore, a display screen 10 is installed on the upper surface of the base 1, and the display screen 10 is electrically connected to the detection head 85, which can quickly transmit and display the image detected by the detection head 85, facilitating intuitive observation of the detection results, thereby improving the efficiency of the detection.

[0033] Secondly, the outer wall of the first sleeve ring 872 is fixedly connected to the threaded rod 11, and the outer wall of the threaded rod 11 is threadedly sleeved with a limiting nut 12, which facilitates manual adjustment of the first sleeve ring 872 and limits the position of the first sleeve ring 872.

[0034] Furthermore, the slide groove 874 is tilted, and the tilting setting can guide the movement of the connecting rod 879, thereby adjusting the illumination angle of the lighting lamp 875.

[0035] In addition, the bracket 7 is an inverted "L"-shaped structure, which has good stability and can be more stable when bearing weight or external force.

[0036] The working principle of this embodiment is as follows: the fabric to be measured is placed on the detection table 2, and then the first cylinder 5 is started. The output end of the first cylinder 5 pushes the clamping block 6 to move vertically downward on the outer wall of the mounting frame 4. The clamping block 6 drives the measuring assembly 8 to move vertically downward through the bracket 7, thereby adjusting the detection height of the detection head 85.

[0037] Furthermore, the threaded adjustment rod 84 is manually rotated, and the threaded adjustment rod 84 is threadedly connected to the fixed block 83, so that the threaded adjustment rod 84 drives the detection head 85 to move vertically downward, and adjusts the distance between the detection head 85 and the lighting assembly 87, so that the image obtained by the detection is clearer, thereby improving the measurement accuracy of the weft density.

[0038] Furthermore, loosen the limiting nut 12, and push the threaded rod 11 to drive the first ring 872 to rotate on the outer wall of the fixed ring 871. The first ring 872 drives the slide groove 874 inside the multiple grooves 873 at the bottom to rotate, and the slide groove 874 pushes the connecting rod 879 to move downward. The connecting rod 879 pushes the connecting seat 876 to move through the guidance and limitation of the second ring 878, and the connecting seat 876 drives multiple lighting lamps 875 to rotate at the same time. When the lighting lamp 875 rotates to the appropriate angle, rotate the limiting nut 12 in the opposite direction so that the limiting nut 12 is close to the side wall of the fixed ring 871, limiting the lighting lamp 875, and being able to adjust the illumination angle of multiple groups of lights at the same time, which can reduce or eliminate the shadow on the surface of the object, especially when the object has a concave and convex structure, ensuring that the image is clearer during weft density detection, thereby improving the accuracy of detection.

[0039] Finally, the second cylinder 9 is started to push the socket block 81 to move horizontally on the bracket 7. The socket block 81 drives the detection head 85 to move horizontally to detect the weft density of the fabric at different positions. The detection image is then transmitted to the display screen 10 through the detection head 85 for display, which is convenient for intuitive observation and improves the efficiency of detection.

[0040] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art may make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A machine vision online weft density detection device, characterized in that: include: A base (1), wherein a detection platform (2) is fixedly provided on the upper surface of the base (1); A support frame (3) is arranged on the upper surface of the base (1), a mounting frame (4) is fixedly arranged on one side of the support frame (3), a first cylinder (5) is mounted on the upper end of the mounting frame (4), and an output end of the first cylinder (5) passes through the mounting frame (4) and is extended to be connected to a clamping block (6), and the clamping block (6) is movably sleeved with the support frame (3); A bracket (7) is fixedly arranged on one side of the clamping block (6); a measuring component (8) for detecting the weft density of textiles is movably sleeved on the bracket (7); a second cylinder (9) is fixedly installed on one side of the bracket (7); and an output end of the second cylinder (9) is fixedly connected to the measuring component (8).

2. The machine vision online weft density detection device according to claim 1, characterized in that: The measuring assembly (8) comprises a sleeve block (81), a guide groove (82) is provided on one side of the sleeve block (81), a fixed block (83) is fixedly provided on one side of the upper end of the sleeve block (81), a threaded adjustment rod (84) is threadedly passed through the upper end of the fixed block (83), a detection head (85) is rotatably connected to the lower end of the threaded adjustment rod (84), one side of the detection head (85) is fixedly connected to a guide block (86), the guide block (86) is slidably connected to the detection head (85), and a lighting assembly (87) for lighting is fixedly connected to the lower end of the sleeve block (81).

3. The machine vision online weft density detection device according to claim 2, characterized in that: The lighting assembly (87) includes a fixed ring (871), the outer wall of the fixed ring (871) is movably connected to a first ring (872), the bottom surface of the first ring (872) is provided with a plurality of grooves (873), the inner wall of the groove (873) is provided with a slide groove (874), the bottom of the fixed ring (871) is rotatably provided with a lighting lamp (875), one side of the lighting lamp (875) is fixedly provided with a connecting seat (876), the bottom surface of the fixed ring (871) is fixedly provided with a plurality of groups of fixing frames (877), a second ring (878) is rotatably provided between each group of fixing frames (877), the second ring (878) is movably connected to a connecting rod (879), one end of the connecting rod (879) is slidably connected to the slide groove (874), and the other end of the connecting rod (879) is slidably connected to the connecting seat (876).

4. The machine vision online weft density detection device according to claim 2, characterized in that: A display screen (10) is mounted on the upper surface of the base (1), and the display screen (10) is electrically connected to the detection head (85).

5. The machine vision online weft density detection device according to claim 3, characterized in that: The outer wall of the first collar (872) is fixedly connected to a threaded rod (11), and the outer wall of the threaded rod (11) is threadedly sleeved with a limiting nut (12).

6. The machine vision online weft density detection device according to claim 3, characterized in that: The chute (874) is arranged to be inclined.

7. The machine vision online weft density detection device according to claim 1, characterized in that: The bracket (7) is arranged in an inverted "L"-shaped structure.

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