A hosiery inspection device and automatic hosiery sorting machine

Abstract

This invention provides a sock-stretching device for defect detection and an automatic sock sorting machine. The sock-stretching device includes a sock-stretching assembly, which includes a first sock-stretching member and a sock-stretching tube. The first sock-stretching member is positioned lower than the sock-stretching tube. The side wall of the sock-stretching tube has a vertically extending strip-shaped hole. A vertically moving member is disposed inside the sock-stretching tube. The upper part of the vertically moving member abuts against the first sock-stretching member, and the lower part of the vertically moving member is connected to a first motor for driving the first sock-stretching member to move outward through the strip-shaped hole to stretch the sock. The sock-stretching device and automatic sock sorting machine of this invention enable socks to be smoothly placed on the sock-stretching tube to ensure continuous detection, avoid unnecessary damage to the socks, and achieve high detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sock quality inspection technology, specifically to a sock stretching device for defect detection and an automatic sock sorting machine. Background Technology

[0002] As a daily necessity, socks provide basic warmth and absorb sweat. They also provide physical cushioning to reduce wear and tear on the heels and toes, improving foot comfort. They are an indispensable part of human life. With continuous innovation and development in industrial technology, automated production lines are gradually replacing traditional manual labor, and more and more sock knitting machines are being put into production.

[0003] Defect detection is a crucial step in ensuring sock quality. It allows for the timely identification and removal of substandard products to reduce the defect rate and enables timely adjustments to production process parameters to prevent batch quality problems. Current technologies rely on manual stretching of the sock opening for inspection, which is time-consuming, labor-intensive, and results in significant product quality fluctuations. To address this, Chinese Patent Application No. 202321987183.1, as the applicant's earlier application, discloses a sock-stretching device for defect detection. This device includes at least a sock-stretching assembly comprising a sock-stretching tube, a sock-stretching cylinder, a vertical moving part, and a horizontal moving part. The sock-stretching tube surrounds the sock-stretching cylinder, and the sock-stretching cylinder has a notch. The horizontal moving part passes through the notch and connects to the sock-stretching tube. The horizontal and vertical moving parts cooperate to stretch the sock on the sock-stretching tube. This solution can replace manual stretching of the sock, greatly improving inspection efficiency. However, when the sock is transferred to the sock-stretching assembly, it is easily caught by the split sock-stretching tube at the top, significantly affecting the continuity and efficiency of the inspection.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] The problem solved by this invention is that the existing testing equipment has an unreasonable structure, which results in poor continuity when the socks are transferred to the sock support assembly and easily damages the socks.

[0006] To address the aforementioned problems, this utility model provides a sock stretching device for defect detection, comprising a sock stretching assembly. The sock stretching assembly includes a first sock stretching member and a sock stretching tube. The first sock stretching member is positioned lower than the sock stretching tube. The side wall of the sock stretching tube has a vertically extending strip-shaped hole. A vertically moving member is disposed inside the sock stretching tube. The upper part of the vertically moving member abuts against the first sock stretching member, and the lower part of the vertically moving member is connected to a first motor for driving the first sock stretching member to move outward through the strip-shaped hole to stretch the sock.

[0007] Preferably, the top wall of the stocking tube is on the same plane and the outer edge is rounded. The angle between the plane containing the top wall and the horizontal plane is α, where α is 15-75°. The value of α is 30-60°, preferably 40°, 45°, 50°, or 55°.

[0008] Preferably, the vertical moving component includes a pull rod and a sleeve, the sleeve being sleeved around the pull rod. The sock-supporting assembly further includes a first motor and a first transmission component connected together. The first transmission component is connected to the sleeve and the pull rod respectively, and is used to drive the sleeve and the pull rod to move in opposite directions, thereby simultaneously applying force to the upper and lower sides of the first sock-supporting component to open it up.

[0009] Preferably, the first transmission component is located on the side of the vertical moving component and includes a first lead screw, a first nut seat, and a second nut seat. The first nut seat and the second nut seat are spaced apart from each other and sleeved on the first lead screw. The first nut seat is connected to the first lead screw by a reverse thread and is connected to the sleeve. The second nut seat is connected to the first lead screw by a positive thread and is connected to the pull rod.

[0010] Preferably, the first stocking support member has a first inclined surface and a second inclined surface at both ends, the first inclined surface and the second inclined surface are located on the side of the first stocking support member close to the central axis of the stocking support tube, the upper end of the pull rod is provided with an upper cone, the tip of the upper cone is downward and abuts against the first inclined surface, and the top outer periphery of the sleeve is provided with a lower cone, the tip of the lower cone is upward and abuts against the second inclined surface.

[0011] Preferably, the stocking support assembly further includes a second stocking support member, which is arranged at intervals with the first stocking support member along the circumference of the stocking tube and is constrained at both ends by elastic members; the outer wall surfaces of the first stocking support member and the second stocking support member are arc-shaped when projected onto the horizontal plane and are on the same circumference.

[0012] Preferably, the defect detection device further includes a mounting frame, and the stocking support tube of the stocking support assembly is mounted on the mounting frame via bearings; the defect detection device further includes a second transmission component and a drive motor, and the drive motor drives the stocking support tube to rotate via the second transmission component.

[0013] Preferably, the outer wall surface of the first sock support member is provided with a first limiting groove for accommodating the sock heel spreading component; the sock heel spreading component includes an outer support member and a spring plate, the outer support member is slidably assembled into the first limiting groove, the two ends of the outer support member are respectively connected to the spring plate and the output unit, and the spring plate protrudes outward away from the output unit to spread the heel of the sock.

[0014] Preferably, the sock heel stretching assembly further includes an inner support member, which is slidably assembled into the first limiting groove. The inner support member is provided with a second limiting groove. The outer support member is slidably assembled into the second limiting groove. The spring sheet is connected to the outer support member and the inner support member respectively. The inner support member is drivenly connected to the height adjustment assembly.

[0015] Preferably, the sock heel stretching assembly further includes a push ring and a bottom ring disposed around the periphery of the sock tube. The bottom ring is located below the push ring. The inner wall surfaces of the push ring and the bottom ring are respectively provided with a first annular groove and a second annular groove, which are used to limit the outer support member and the inner support member, respectively. The output unit is fixed on the bottom ring and driven and connected to the push ring. The bottom ring is connected to the height adjustment assembly.

[0016] Preferably, the lower ends of the outer support and the inner support are respectively provided with a first protrusion and a second protrusion, the first protrusion being limited and assembled to the first annular groove, and the second protrusion being limited and assembled to the second annular groove.

[0017] This utility model also provides an automatic sock inspection and sorting machine, including the above-mentioned sock stretching device for defect detection.

[0018] Compared with the prior art, the defect detection sock stretching device of this utility model embodiment has the following beneficial effects: 1) By improving the structure of the sock stretching component, the sock can be smoothly put on the sock stretching tube, avoiding unnecessary damage to the sock and ensuring the continuity of detection; 2) By setting the sock heel stretching component, the sock heel can be fully stretched while stretching the sock, thereby realizing the detection of key parts such as the sock heel and sock leg, and the detection accuracy is higher; 3) By setting the height adjustment component, the height of the sock heel stretching component can be adjusted as needed, thereby stretching the heel of socks of various sizes, with strong versatility; 4) By setting the push ring and bottom ring, it is ensured that the sock heel stretching component will not interfere with the rotation of the sock stretching tube, and the sock leg and sock heel are stretched open and rotated 360° for comprehensive defect detection; 5) By improving the structure of the first sock stretching component, it can directly contact the vertical moving component, which makes the assembly simple and the transmission stable and reliable. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of the defect detection sock stretcher device described in an embodiment of the present invention;

[0020] Figure 2 for Figure 1 Schematic diagram of the horizontal section along the AA side;

[0021] Figure 3 This is another perspective view of the defect detection stocking support device described in an embodiment of the present invention;

[0022] Figure 4 This is another perspective view of the defect detection stocking support device described in this embodiment of the utility model;

[0023] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0024] Figure 6 This is a longitudinal cross-sectional schematic diagram of the defect detection sock stretcher device described in an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the sock support tube according to an embodiment of the present utility model;

[0026] Figure 8 This is a schematic diagram of the structure of the first sock support member in an embodiment of the present invention;

[0027] Figure 9 This is another perspective view of the first sock support member in an embodiment of the present utility model;

[0028] Figure 10 This is a schematic diagram of the structure of the external support member described in an embodiment of the present utility model;

[0029] Figure 11 This is a structural schematic diagram of the inner support member described in an embodiment of the present utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Sock support assembly; 11-First sock support piece; 111-First limiting groove; 112-First inclined surface; 113-Second inclined surface; 114-Ear plate; 115-Notch; 12-Sock support tube; 121-Strip hole; 122-Top wall; 123-Annular rib; 13-Vertical moving piece; 131-Pull rod; 1311-First guide sleeve; 132-Sleeve; 1321-Second guide sleeve; 133-Upper cone; 134-Lower cone; 14-Sock heel spreading assembly; 141-Outer support piece; 1411-First protrusion; 1412-First connecting hole; 1413-First protrusion; 1414-Perforation; 142-Inner support piece; 1421-Second protrusion; 1422-Second connecting hole; 1423-Second limiting groove; 143-Spring plate; 144-Push ring; 1441-First annular groove; 145-Bottom ring; 1451-Second annular groove; 146-Output unit; 15-First transmission component; 151-First lead screw; 152-First nut seat; 153-Second nut seat; 154-Guide rod; 16-First motor; 17-Height adjustment component; 171-Second lead screw; 172-Third nut seat; 173-Guide shaft; 174-Second motor; 18-Second support component; 2-Mounting bracket; 21-First horizontal plate; 22-Second horizontal plate; 23-Third horizontal plate; 24-First vertical plate; 25-Second vertical plate; 3-Bearing; 4-Second transmission component; 5-Drive motor. Detailed Implementation

[0032] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Without conflict, the technical features of the embodiments of this utility model can be combined with each other.

[0033] With the continuous development of industrial technology, sock knitting machines have replaced manual labor as the mainstream equipment for mass production of socks, boasting advantages such as high efficiency and large output. Therefore, to prevent large-scale production of substandard socks from defects such as missed needles or loose threads, defect detection has become crucial for ensuring sock quality. However, the existing defect detection equipment suffers from poor continuity during the transfer of socks to the sock support assembly due to its unreasonable structure, and is prone to causing unnecessary damage to the socks. Therefore, the applicant proposes the following technical solution:

[0034] like Figure 1-11The aforementioned defect detection sock stretching device includes a sock stretching assembly 1, which includes a first sock stretching member 11 and a sock stretching tube 12. The first sock stretching member 11 is positioned below the sock stretching tube 12. The side wall of the sock stretching tube 12 is provided with a vertically extending strip-shaped hole 121. A vertically moving member 13 is provided inside the sock stretching tube 12. The vertically moving member 13 abuts against the first sock stretching member 11. The lower part of the vertically moving member 13 is connected to a first motor 16 for driving the first sock stretching member 11 to move outward through the strip-shaped hole 121 to stretch the sock.

[0035] This configuration places the top of the stocking tube 12 at the highest point of the stocking assembly 1, while the first stocking support 11 is located inside the strip hole 121. This allows the stocking to be smoothly fitted onto the stocking tube 12 without being caught on the first stocking support 11 and causing unnecessary damage. The defect detection operation is highly continuous and efficient.

[0036] Preferably, the top wall 122 of the stocking support 12 is on the same plane and its outer edge is rounded. The angle between the plane containing the top wall 122 and the horizontal plane is α, where α is 15-75°. The value of α is 30-60°, preferably 40°, 45°, 50°, or 55°. This design allows the stocking support 12 to gradually contract from bottom to top, thus allowing the stocking to be smoothly fitted over the stocking support 12. The structure is simple and easy to manufacture.

[0037] Preferably, the vertical moving member 13 includes a pull rod 131 and a sleeve 132. The sleeve 132 is sleeved around the pull rod 131. The sock-supporting assembly 1 also includes a first motor 16 and a first transmission member 15 connected to each other. The first transmission member 15 is connected to the sleeve 132 and the pull rod 131 respectively, and is used to drive the sleeve 132 and the pull rod 131 to move in opposite directions, thereby simultaneously applying force to the upper and lower sides of the first sock-supporting member 11 to open it up.

[0038] This setup controls the opening degree of the first sock stretcher 11 by controlling the output of the first motor 16, thus meeting the defect detection requirements of socks of different sizes and specifications, and has a wide range of applications; at the same time, it applies force evenly to the upper and lower parts of the first sock stretcher 11, avoiding the situation where the upper or lower part is unevenly stressed and the opening degree is different due to the traditional sock stretcher tool, thereby avoiding local overstretching or loosening and improving the accuracy of defect detection.

[0039] Preferably, the first transmission member 15 is located on the side of the vertical moving member 13 and includes a first lead screw 151, a first nut seat 152, and a second nut seat 153. The first nut seat 152 and the second nut seat 153 are spaced apart from each other and sleeved on the first lead screw 151. The first nut seat 152 is connected to the first lead screw 151 by a reverse thread and is connected to the sleeve 132. The second nut seat 153 is connected to the first lead screw 151 by a positive thread and is connected to the pull rod 131.

[0040] This configuration easily converts the rotational motion of the first lead screw 151 into the linear motion of the pull rod 131 and the sleeve 132, meeting the requirement of the sock-stretching assembly 1 to apply force to the sock from both above and below simultaneously, ensuring that the sock can be stretched stably and evenly. It reduces the number and complexity of parts, lowers the manufacturing cost and maintenance difficulty of the device, and improves the reliability and stability of the device. It should be noted that the first nut seat 152 can also have a positive thread to the first lead screw 151 and be connected to the pull rod 131, while the second nut seat 153 can have a negative thread to the first lead screw 151 and be connected to the sleeve 132.

[0041] Preferably, the first transmission component 15 further includes two guide rods 154 located on both sides of the first lead screw 151, which are used to ensure that the first nut seat 152 and the second nut seat 153 move up and down along a predetermined trajectory.

[0042] This setup provides radial constraints on the first nut seat 152 and the second nut seat 153 via the guide rod 154, limiting their rotational degrees of freedom and allowing them to move linearly along the guide rod 154 to eliminate rotational deviations, thus greatly improving the straightness and accuracy of the motion. At the same time, it can withstand some lateral forces to reduce the burden on the first lead screw 151, enhancing the structural rigidity of the entire transmission component and making it less prone to deformation or damage when subjected to large loads or external impacts.

[0043] Preferably, the stocking support assembly 1 further includes a second stocking support member 18, which is arranged at intervals with the first stocking support member 11 along the periphery of the stocking support tube 12 and is constrained at both ends by elastic members.

[0044] This design uses elastic elements to allow the first stocking support member 11 and the second stocking support member 18 to expand outwards at equal intervals, thereby evenly stretching the stocking and ensuring that the shape and size of the stocking remain regular after stretching, thus improving the quality of the stocking's stretching. As an example of this invention, the top end of the first stocking support member 11 is provided with an ear plate 114 for limiting the assembly of the elastic elements. This design ensures that the surface of the first stocking support member 11 is smooth, facilitating the insertion of the stocking for defect detection.

[0045] Multiple second sock stretcher components 18 may be present and extend along the length of the sock stretcher tube 12. This arrangement increases the contact area with the sock, allowing it to stretch the sock better, while also ensuring ease of assembly. Preferably, the outer wall surfaces of the first sock stretcher component 11 and the second sock stretcher component 18 project onto the horizontal plane in an arc shape and lie on the same circumference. This arrangement allows the sock stretcher assembly 1 to have a large contact area with the sock, resulting in a small detection error.

[0046] Preferably, the first sock support member 11 has a first inclined surface 112 and a second inclined surface 113 at its two ends, respectively. The first inclined surface 112 and the second inclined surface 113 are located on the side of the first sock support member 11 away from the first limiting groove 111. The upper end of the pull rod 131 is provided with an upper cone 133, the tip of which faces downward and abuts against the first inclined surface 112. The top outer periphery of the sleeve 132 is provided with a lower cone 134, the tip of which faces upward and abuts against the second inclined surface 113.

[0047] This design eliminates the need for traditional lateral moving parts, converting the vertical movement of the vertical moving part 13 into the horizontal movement of the first support stocking part 11. The transmission is stable and reliable, and assembly is simple. The second support stocking part 18 also has a first inclined surface 112 and a second inclined surface 113 at both ends, which are used to abut against the upper cone head 133 and the lower cone head 134, respectively; these details will not be elaborated further here.

[0048] As an example of this utility model, a first guide sleeve 1311 is provided at the lower end of the pull rod 131, and the first guide sleeve 1311 is fitted with the second nut seat 153 for limiting assembly. A second guide sleeve 1321 is provided at the lower end of the sleeve 132, and the second guide sleeve 1321 is fitted with the first nut seat 152 for limiting assembly.

[0049] This configuration provides precise guide paths for the pull rod 131 and sleeve 132 respectively. Driven by the first nut seat 152 and the second nut seat 153, the pull rod 131 and sleeve 132 can only move along the specified straight line direction, ensuring the straightness and accuracy of the movement. At the same time, it enables the pull rod 131 and sleeve 132 to be subjected to uniform constraint force during the movement, making the movement more stable and smooth, and improving the operational stability of the entire device.

[0050] Preferably, the defect detection device further includes a mounting frame 2, and the stocking support tube 12 of the stocking support assembly 1 is mounted on the mounting frame 2 via a bearing 3; the defect detection device further includes a second transmission component 4 and a drive motor 5, and the drive motor 5 drives the stocking support tube 12 to rotate via the second transmission component 4.

[0051] This setup uses the sock-supporting assembly 1 to rotate the socks synchronously, ensuring that the sock surface is fully displayed in front of the camera and other inspection equipment. This allows for the capture of information from various parts of the sock, including the cuff, body, heel, and toe, improving the accuracy and comprehensiveness of sock defect detection. Furthermore, it ensures that the time and angle of light exposure on different parts of the sock surface are relatively uniform, facilitating the acquisition of clearer and more accurate sock images, reducing misjudgments caused by uneven lighting, and improving the reliability of the inspection. The second transmission component 4 consists of a belt and rollers, which will not be described in detail here.

[0052] The mounting frame 2 includes a first horizontal plate 21 and a second horizontal plate 22 spaced apart. The stocking support tube 12 is mounted on the first horizontal plate 21 via a bearing 3. The drive motor 5 is located on the side of the stocking support tube 12 and fixed on the second horizontal plate 22.

[0053] This configuration allows the stocking support tube 12 to be mounted on the first horizontal plate 21 via the bearing 3. The weight and force generated during operation are mainly borne by the first horizontal plate 21, while the second horizontal plate 22 provides a stable support for the drive motor 5. This makes the force on the entire mounting frame 2 more even and reasonable, reducing structural deformation or damage caused by excessive local force and improving the overall stability of the equipment. Since there is a certain distance between the second horizontal plate 22 and the first horizontal plate 21, the vibration will be attenuated to a certain extent during transmission, thereby reducing the impact of vibration on the stocking support tube 12 and ensuring the accuracy and stability of the detection and sorting process.

[0054] The mounting bracket 2 also includes a first vertical plate 24 and a second vertical plate 25, which provide support for the first horizontal plate 21, the second horizontal plate 22, and the third horizontal plate 23. Their specific assembly relationship is existing technology and will not be described further here.

[0055] Example 2

[0056] Therefore, defect detection is crucial for ensuring sock quality. However, due to the unique shape of the sock heel, existing detection equipment cannot effectively stretch the heel, resulting in poor detection accuracy. To address this, the applicant has made the following improvements based on Example 1:

[0057] The outer wall surface of the first sock support member 11 is provided with a first limiting groove 111 for accommodating the sock heel spreading component 14; the sock heel spreading component 14 includes a spring plate 143 and an output unit 146. The spring plate 143 protrudes outward away from the outside of the sock support tube 12 under the action of the output unit 146 to spread the heel of the sock.

[0058] This setup expands the sock by moving the first sock stretcher 11 horizontally outward relative to the sock tube 12, ensuring the sock is flat and relaxed, allowing all parts of the sock to be fully exposed for subsequent comprehensive defect inspection. Simultaneously, a first limiting groove 111 is provided on the outer wall of the first sock stretcher 11 to accommodate the sock heel stretching component 14. The spring plate 143 within this component protrudes outward away from the sock tube 12 under pressure, specifically targeting the sock heel for stretching, thus enabling defect inspection of these two key areas. Furthermore, the distance the first sock stretcher 11 moves horizontally outward relative to the sock tube 12 is controlled by adjusting the stroke of the vertical moving component 13, accommodating the stretching needs of different sock sizes. The degree of protrusion of the spring plate 143 under pressure can be adjusted to accommodate the elasticity and thickness of different sock heels, making it highly versatile.

[0059] As an example of this utility model, the sock support assembly 14 includes an outer support member 141 and an inner support member 142. The inner support member 142 is assembled into the first limiting groove 111. The inner support member 142 is provided with a second limiting groove 1423 for limiting the assembly of the outer support member 141. The spring sheet 143 is connected to the ends of the outer support member 141 and the inner support member 142 respectively. The lengths of the outer support member 141, the second limiting groove 1423, the inner support member 142, and the first limiting groove 111 are L1, L2, L3, and L4 respectively, where L1 < L2 < L3 < L4. The lower end of the outer support member 141 is driven and connected to the output unit 146. The sock support assembly 1 also includes a height adjustment assembly 17 for connecting to the inner support member 142 to adjust its height.

[0060] The inner support member 142 is shorter than the first limiting groove 111, allowing the height adjustment component 17 to drive the inner support member 142 to slide up and down within the first limiting groove 111, thus adjusting the height of the sock heel stretching component 14. This enables the heel of socks of different sizes to be stretched open for easy defect detection, resulting in a wide range of applications. The inner support member 142 is fitted within the first limiting groove 111, while the outer support member 141 is further limited within the second limiting groove 1423 of the inner support member 142. This ensures the relative positional stability of each component during movement, preventing misalignment or wobbling between components, guaranteeing the accuracy and consistency of the sock heel stretching action, and improving the reliability of the detection. As an example of this invention, the output unit 146 is a cylinder.

[0061] Preferably, the height adjustment component 17 includes a second lead screw 171 and a third nut seat 172. The third nut seat 172 is sleeved on the second lead screw 171 and the two are threadedly connected. The third nut seat 172 is connected to the inner support member 142 through a guide shaft 173. The height adjustment component 17 also includes a second motor 174, which is drivenly connected to the second lead screw 171.

[0062] When the second motor 174 drives the second lead screw 171 to rotate, the third nut seat 172 will make precise linear movements along the axis of the second lead screw 171. By precisely controlling the moving distance of the third nut seat 172, the height of the sock heel stretching assembly 14 can be adjusted to meet the fine requirements of different sock heel stretching heights, thereby improving the accuracy of defect detection. The threaded connection between the second lead screw 171 and the third nut seat 172 has self-locking properties. When the second motor 174 stops rotating, the third nut seat 172 will automatically... Locked in its current position, it will not slide or move due to external forces or its own weight, thus ensuring the stability of the sock heel opening and facilitating the smooth progress of the defect detection process. Since the third nut seat 172 is connected to the inner support member 142 through the guide shaft 173, the guide shaft 173 provides precise guidance for the linear movement of the third nut seat 172 and the inner support member 142, so that they can only move in a straight line along the axis of the second lead screw 171, avoiding the shaking or tilting of the inner support member 142 due to movement deviation, and further improving the operational stability of the device.

[0063] As an example of this utility model, the side of the outer support member 141 is provided with a first protrusion 1413, the first protrusion 1413 is provided with a through hole 1414, the first protrusion 1413 is slidably assembled into the second limiting groove 1423, the sock heel spreading assembly 14 also includes an insert post, the insert post passes through the through hole 1414 and is fixedly connected to the side walls on both sides of the second limiting groove 1423.

[0064] This design tightly connects the outer support 141 and the inner support 142 together, while the insertion post effectively prevents the outer support 141 from falling out of the second limiting groove 1423 when under stress, ensuring the integrity and stability of the sock heel spreading assembly 14 structure. When the outer support 141 is subjected to external force during movement, it can distribute the stress to the inner support 142, thereby avoiding excessive local stress on the outer support 141 and causing deformation or damage, thus improving the reliability and stability of the entire sock heel spreading assembly 14.

[0065] As a force-applying component of this utility model, the tops of the outer support member 141 and the inner support member 142 are respectively provided with a first connecting hole 1412 and a second connecting hole 1422 for fixed connection of the two ends of the spring sheet 143. This configuration is simple in structure and easy to manufacture.

[0066] Preferably, notches 115 are provided on both sides of the lower end of the first sock support member 11, and annular ribs 123 are provided around the periphery of the sock support tube 12 to limit the upper part of the bearing 3. This arrangement can avoid interference between the first sock support member 11 and the assembly of the bearing 3, and the structure is more compact. Preferably, the mounting bracket 2 also includes a third horizontal plate 23, which is located on the side of the second horizontal plate 22 away from the first horizontal plate 21, and is used to fix and assemble the first motor 16.

[0067] This design effectively reduces the shaking or deformation of the mounting frame 2 caused by motor operation, ensuring the equipment remains stable during long-term operation and providing a reliable foundation for accurate sock sorting. At the same time, it distributes the force generated by components such as the first motor 16, drive motor 5, and sock support cylinder 12 onto the plate, avoiding excessive local stress and extending service life.

[0068] As an example of this utility model, the sock heel stretching assembly 14 further includes a push ring 144 and a bottom ring 145 sleeved around the sock support tube 12. The bottom ring 145 is located below the push ring 144. The inner wall surfaces of the push ring 144 and the bottom ring 145 are respectively provided with a first annular groove 1441 and a second annular groove 1451. The lower ends of the outer support member 141 and the inner support member 142 are respectively provided with a first protrusion 1411 and a second protrusion 1421. The first protrusion 1411 is limited and assembled to the first annular groove 1441, and the second protrusion 1421 is limited and assembled to the second annular groove 1451. The output unit 146 is fixed on the bottom ring 145 and drivenly connected to the push ring 144. The bottom ring 145 is connected to the guide shaft 173.

[0069] This setup utilizes the push ring 144 and bottom ring 145 to ensure constant contact with the outer support member 141 and inner support member 142, stably adjusting and expanding the stocking hem stretching assembly 14 without interfering with the rotation of the stocking tube 12, thus enabling the stretching and rotation of the stocking.

[0070] First, the sock to be inspected is placed on the sock support tube 12. Then, the first motor 16 moves the pull rod 131 downward through the first transmission component 15, while the sleeve 132 moves upward in sync, causing the first sock support component 11 and the second sock support component 18 to move away from the central axis of the sock support tube 12, thus spreading the sock open. Then, the output unit 16 drives the outer support component 141 to move upward relative to the inner support component 142, causing the two ends of the spring plate 143 to press against each other and protrude outward, thus spreading the sock heel. The orientation of the sock heel spreading component 14 on the circumference can be set according to the orientation of the sock in the process parameters so that it is set directly opposite the sock heel. The degree of protrusion of the spring plate 143 can be adjusted by adjusting the parameters of the output unit 16 to adapt to different socks. If necessary, the height of the sock heel spreading component 1 can be adjusted by adjusting the height component 17 to adapt to different sizes of socks. Then, the drive motor 5 rotates the sock support tube 12 for defect detection.

[0071] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A hosiery support device for use in defect detection, characterized in that, The device includes a sock support assembly (1), which includes a first sock support member (11), a sock support tube (12), and a first motor (16). The first sock support member (11) is positioned below the sock support tube (12). The side wall of the sock support tube (12) is provided with a vertically extending strip hole (121). A vertical moving member (13) is provided inside the sock support tube (12). The vertical moving member (13) abuts against the first sock support member (11). The lower part of the vertical moving member (13) is connected to the first motor (16) to drive the first sock support member (11) to move outward through the strip hole (121) to stretch the sock.

2. The defect detection stocking apparatus according to claim 1, characterized in that, The top wall (123) of the sock sleeve (12) is on the same plane and the outer edge is rounded. The angle between the plane of the top wall (123) and the horizontal plane is α, where the value of α is 15-75°.

3. The defect detection stocking apparatus according to claim 1, characterized in that, The vertical moving part (13) includes a pull rod (131) and a sleeve (132). The sleeve (132) is sleeved around the pull rod (131). The sock-supporting assembly (1) also includes a first transmission part (15) connected to the first motor (16). The first transmission part (15) is connected to the sleeve (132) and the pull rod (131) respectively, and is used to drive the sleeve (132) and the pull rod (131) to move in opposite directions, thereby simultaneously applying force to the upper and lower sides of the first sock-supporting part (11) to make it open.

4. The defect detection stocking apparatus according to claim 3, characterized in that, The first sock support member (11) has a first inclined surface (112) and a second inclined surface (113) respectively at both ends. The first inclined surface (112) and the second inclined surface (113) are located on the side of the first sock support member (11) close to the central axis of the sock support tube (12). The upper end of the pull rod (131) is provided with an upper cone (133). The tip of the upper cone (133) is downward and abuts against the first inclined surface (112). The top outer periphery of the sleeve (132) is provided with a lower cone (134). The tip of the lower cone (134) is upward and abuts against the second inclined surface (113).

5. The defect detection stocking apparatus according to claim 1, characterized in that, The sock support assembly (1) further includes a second sock support member (18), which is arranged at intervals with the first sock support member (11) along the periphery of the sock support tube (12) and is constrained at both ends by elastic members; the outer wall surfaces of the first sock support member (11) and the second sock support member (18) are arc-shaped when projected onto the horizontal plane and are on the same circumference.

6. The defect detection stocking apparatus according to claim 1, characterized in that, The defect detection device for stockings also includes a mounting frame (2), and the stocking tube (12) of the stocking assembly (1) is mounted on the mounting frame (2) via a bearing (3); the defect detection device also includes a second transmission component (4) and a drive motor (5), and the drive motor (5) drives the stocking tube (12) to rotate via the second transmission component (4).

7. The defect detection stocking apparatus according to claim 1, characterized in that, The outer wall of the first sock support member (11) is provided with a first limiting groove (111) for accommodating the sock heel spreading assembly (14); the sock heel spreading assembly (14) includes an outer support member (141) and a spring plate (143). The outer support member (141) is slidably assembled into the first limiting groove (111). The two ends of the outer support member (141) are respectively connected to the spring plate (143) and the output unit (146). The spring plate (143) protrudes outward away from the output unit (146) to spread the heel of the sock.

8. The defect detection stocking apparatus according to claim 7, characterized in that, The sock heel stretching assembly (14) further includes an inner support member (142), which is slidably assembled into the first limiting groove (111). The inner support member (142) is provided with a second limiting groove (1423). The outer support member (141) is slidably assembled into the second limiting groove (1423). The spring sheet (143) is connected to the outer support member (141) and the inner support member (142) respectively. The inner support member (142) is drivenly connected to the height adjustment assembly (17).

9. The defect detection stocking apparatus according to claim 8, characterized in that, The sock heel stretching assembly (14) further includes a push ring (144) and a bottom ring (145) disposed around the sock tube (12). The bottom ring (145) is located below the push ring (144). The inner wall surfaces of the push ring (144) and the bottom ring (145) are provided with a first annular groove (1441) for limiting the assembly of the outer support member (141). The inner wall surface of the bottom ring (145) is provided with a second annular groove (1451) for limiting the assembly of the inner support member (142). The output unit (146) is fixed to the bottom ring (145) and drivenly connected to the push ring (144). The bottom ring (145) is connected to the height adjustment assembly (17).

10. An automatic sock inspection and sorting machine, characterized in that, Includes the defect detection stocking device according to any one of claims 1-9.

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