A hosiery stretching device for use in the detection of defects

Abstract

The utility model provides a kind of flaw detection is used to support stocking device, including supporting stocking component, the supporting stocking component includes the vertical moving piece, horizontal moving piece, assembly cylinder being arranged from inside to outside, arc support plate, the vertical moving piece includes pull rod, sleeve, the sleeve is set in the periphery of pull rod, the supporting stocking device further include connected first motor, first transmission part, the first transmission part is connected with the sleeve, pull rod respectively, for driving the sleeve, pull rod movement in opposite direction, to cooperate with horizontal moving piece to simultaneously exert force on the upper side of arc support plate, lower side to make it support open. The utility model utilizes first motor and screw drive cooperation, the opening degree of arc support plate is controlled by changing the output power of motor, so as to not meet the flaw detection demand of different size specifications socks, wide application range.

Description

Technical Field

[0001] This utility model relates to the field of sock quality inspection technology, and more specifically, to a sock stretching device for defect detection. 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 stretching tube, a stretching sleeve, a vertical moving member, and a horizontal moving member. The stretching tube surrounds the outer circumference of the stretching sleeve, and the stretching sleeve has a notch. The horizontal moving member passes through the notch and connects to the stretching tube. The horizontal and vertical moving members cooperate to stretch the sock on the stretching tube. This solution can replace manual stretching of socks, greatly improving testing efficiency; however, the upper and lower parts of the vertical moving parts in this solution cannot move synchronously, which can easily lead to different degrees of stretching and affect the accuracy of the test; in addition, the degree of stretching is usually relatively fixed and cannot meet the testing needs of different socks.

[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 top and bottom of the existing stocking structure are difficult to move synchronously, which can easily lead to different degrees of stretching and affect the accuracy of the test.

[0006] To address the aforementioned problems, this utility model provides a sock-supporting device for defect detection, comprising a sock-supporting assembly. The sock-supporting assembly includes a vertically moving component, a horizontally moving component, an assembly cylinder, and an arc-shaped support plate arranged from the inside out. The vertically moving component includes a pull rod and a sleeve, with the sleeve fitted around the pull rod. The sock-supporting assembly also 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 cooperating with the horizontally moving component to simultaneously apply force to the upper and lower sides of the arc-shaped support plate to open it.

[0007] Preferably, the first transmission component includes a vertically arranged lead screw, on which a first nut and a second nut are provided. The first nut is connected to the lead screw by a reverse thread and is connected to one of the pull rod and the sleeve. The second nut is connected to the lead screw by a positive thread and is connected to the other of the pull rod and the sleeve.

[0008] Preferably, a first guide sleeve is fixedly provided on the periphery of the pull rod, and a first limiting post is provided on the side of the second nut for limiting assembly with the first guide sleeve; a second guide sleeve is fixedly provided on the periphery of the sleeve, and a second limiting post is provided on the side of the first nut for limiting assembly with the second guide sleeve.

[0009] Preferably, the first transmission component further includes two guide rods located on both sides of the lead screw, which pass sequentially through the first nut and the second nut.

[0010] Preferably, there are multiple arc-shaped support plates arranged at intervals along the periphery of the assembly cylinder, and the multiple arc-shaped support plates are coaxially arranged with the assembly cylinder and constrained at both ends by elastic elements.

[0011] Preferably, the plurality of the arc-shaped support plates extend along the length direction of the assembly cylinder and their upper end faces are on the same inclined plane.

[0012] Preferably, the assembly cylinder includes a first notch and a second notch arranged vertically, the transverse moving component includes a first inclined moving block and a second inclined moving block, the first inclined moving block passes through the first notch and connects to the upper part of the arc-shaped support plate, the second inclined moving block passes through the second notch and connects to the lower part of the arc-shaped support plate, the upper end of the pull rod is provided with an upper cone, the tip of the upper cone faces downward and abuts against the first inclined moving block, and the top outer periphery of the sleeve is provided with a lower cone, the tip of the lower cone faces upward and abuts against the second inclined moving block.

[0013] Preferably, the defect detection stocking support device further includes a mounting frame, on which the aforementioned stocking support assembly is mounted, and on which a second transmission component and a second motor are mounted. The second motor drives the assembly cylinder to rotate through the second transmission component, which is a belt.

[0014] Preferably, the mounting bracket includes a first horizontal plate and a second horizontal plate arranged at vertical intervals, the assembly cylinder is mounted on the first horizontal plate via a bearing, and the second motor is located on the side of the assembly cylinder and fixed to the second horizontal plate.

[0015] Preferably, the mounting bracket further includes a third horizontal plate, which is located on the side of the second horizontal plate away from the first horizontal plate, and is used to fix the first motor, with the first motor located below the third horizontal plate.

[0016] Compared with the prior art, the rotating device outside the city described in this utility model embodiment has the following beneficial effects: 1) Compared with the cylinder, this application uses a first motor and a lead screw drive to control the opening degree of the arc-shaped support plate by changing the output power of the motor, thereby meeting the defect detection requirements of socks of different sizes and specifications, and has a wide range of applications; 2) At the same time, a force is evenly applied to the upper and lower sides of the arc-shaped support plate, so that the opening degree of the upper and lower sides of the sock is consistent and avoids local overstretching or loosening, thereby improving the accuracy of defect detection; 3) By setting a second motor to drive the rotation of the sock, it is beneficial for the detection equipment to capture information from various parts of the sock, such as the sock opening, sock body, sock heel, and sock toe, thereby improving the accuracy and comprehensiveness of defect detection. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of the defect detection sock stretcher device described in an embodiment of the present invention;

[0018] Figure 2 This is another perspective view of the defect detection stocking support device described in an embodiment of the present invention;

[0019] Figure 3 This is a third-view view of the defect detection stocking support device described in an embodiment of the present invention;

[0020] Figure 4 This is a longitudinal cross-sectional schematic diagram of the defect detection sock stretcher device described in an embodiment of the present invention;

[0021] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0022] Figure 6 This is a schematic diagram of the assembly cylinder described in an embodiment of the present utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1-Sock support assembly; 11-Arc-shaped support plate; 12-Assembly cylinder; 121-First notch; 122-Second notch; 123-Annular rib; 13-Vertical moving component; 131-Pull rod; 1311-First guide sleeve; 132-Sleeve; 1321-Second guide sleeve; 133-Upper cone; 134-Lower cone; 14-Horizontal moving component; 141-First inclined plane moving block; 142-Second inclined plane moving block; 15-First transmission component; 151-Screw rod; 152-First nut; 153-Second nut; 154-Guide rod; 16-First motor; 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-Second motor. Detailed Implementation

[0025] 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 this utility model can be combined with each other.

[0026] In addition, a brief explanation of the orientation involved in the following specific embodiments is given: the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "top", "bottom" etc. mentioned in the embodiments refer to the orientations or positional relationships shown in the accompanying drawings.

[0027] like Figure 1-6 As shown, a defect detection stocking support device includes a stocking support assembly 1. The stocking support assembly 1 includes a vertical moving member 13, a horizontal moving member 14, an assembly cylinder 12, and an arc-shaped support plate 11 arranged from the inside out. 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 stocking support 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 cooperating with the horizontal moving member 14 to simultaneously apply force to the upper and lower sides of the arc-shaped support plate 11 to open it.

[0028] This setup controls the opening degree of the arc-shaped support plate 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. Simultaneously, it applies force evenly to the upper and lower parts of the arc-shaped support plate 11, avoiding uneven force distribution on the upper or lower parts that may occur with traditional sock stretching tools, thereby preventing localized overstretching or loosening and improving the accuracy of defect detection. As an example of this utility model, the lateral moving member 14 and the arc-shaped support plate 11 can also be integrally formed.

[0029] Preferably, the first transmission member 15 is located on the side of the vertical moving member 13 and includes a lead screw 151, a first nut 152, and a second nut 153. The first nut 152 and the second nut 153 are spaced apart from each other and sleeved on the lead screw 151. The first nut 152 has a reverse thread with the lead screw 151 and is connected to the sleeve 132. The second nut 153 has a positive thread with the lead screw 151 and is connected to the pull rod 131.

[0030] This configuration easily converts the rotational motion of the 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, ensuring that the sock can be stretched stably and evenly. It helps reduce the size of the device, saving production space, and also facilitates installation and transportation. It reduces the number and complexity of parts, lowers manufacturing costs and maintenance difficulty, and improves the reliability and stability of the device. It should be noted that the first nut 152 can also have a positive thread connected to the lead screw 151 and the pull rod 131, while the second nut 153 can have a negative thread connected to the lead screw 151 and the sleeve 132.

[0031] Specifically, when the lead screw 151 rotates, the first nut 152 and the second nut 153 will move in opposite directions along the axial direction of the lead screw 151, thereby driving the pull rod 131 and the sleeve 132 to move in opposite directions simultaneously according to the preset requirements and cooperate with the lateral moving part 14 to make the socks open under the action of the arc-shaped support plate 11.

[0032] Preferably, the first transmission component 15 further includes two guide rods 154 located on both sides of the lead screw 151, which are used to ensure that the first nut 152 and the second nut 153 move up and down along a predetermined trajectory.

[0033] This setup provides radial constraints on the first nut 152 and the second nut 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. The guide rod 154 provides an additional support structure for the first transmission component 15, capable of bearing part of the lateral force from the nut to reduce the burden on the lead screw 151, enhancing the structural rigidity of the entire transmission component, making it less prone to deformation or damage when subjected to large loads or external impacts.

[0034] As an example of the utility model, there are multiple arc-shaped support plates 11 arranged at intervals along the periphery of the assembly cylinder 12, and the two ends of the multiple arc-shaped support plates 11 are respectively constrained by elastic members.

[0035] This design uses elastic elements to automatically expand and contract according to the tension of the socks, causing the arc-shaped support plate 11 to expand outward or contract inward, thus adapting to socks with different cuff diameters and body sizes. Under the constraint of the elastic elements, multiple arc-shaped support plates 11 can expand outward simultaneously and at equal intervals, evenly stretching the socks and avoiding local deformation or uneven stretching during the stretching process. This ensures that the shape and size of the socks remain regular after stretching, improving the stretching quality of the socks.

[0036] There are 2-5 arc-shaped support plates 11 extending along the length of the assembly cylinder 12, with the upper surfaces of multiple arc-shaped support plates 11 on the same inclined plane. This arrangement increases the contact area with the sock, allowing it to better spread out, while also ensuring ease of assembly. Preferably, there are 4 arc-shaped support plates 11 with grooves, and the elastic element is embedded in the grooves. This arrangement ensures that the outer surface of the arc-shaped support plate 11 is smooth, and the elastic element will not interfere with the sock being fitted onto the surface of the arc-shaped support plate 11. Of course, the elastic element can also be located on the inner side of the arc-shaped support plate 11.

[0037] The assembly cylinder 12 includes a first notch 121 and a second notch 122 arranged vertically. The transverse moving component 14 includes a first inclined moving block 141 and a second inclined moving block 142. The first inclined moving block 141 passes through the first notch 121 and is connected to the upper part of the arc-shaped support plate 11. The second inclined moving block 142 passes through the second notch 122 and is connected to the lower part of the arc-shaped support plate 11. The upper end of the pull rod 131 is provided with an upper cone 133. The tip of the upper cone 133 faces downward and abuts against the first inclined moving block 141. The top outer periphery of the sleeve 132 is provided with a lower cone 134. The tip of the lower cone 134 faces upward and abuts against the second inclined moving block 142.

[0038] This configuration allows the first inclined plane moving block 141 to pass through the first notch 121. The upper and lower ends of the first notch 121 limit the upper and lower ends of the first inclined plane moving block 141, ensuring that the first inclined plane moving block 141 can only move laterally. Similarly, the second inclined plane moving block 142 can only move laterally, thereby converting the vertical movement of the vertical moving member 13 into the horizontal movement of the horizontal moving member 14, resulting in stable and reliable transmission. The specific structure of the first inclined plane moving block 141 and the second inclined plane moving block 142 is existing technology. Preferably, the first inclined plane moving block 141 and the second inclined plane moving block 142 can be arranged according to the number of arc-shaped support plates 11 and made to correspond one-to-one.

[0039] As an example of this utility model, a first guide sleeve 1311 is fixedly provided on the periphery of the pull rod 131, and the first guide sleeve 1311 is limited and assembled with the second nut 153. A second guide sleeve 1321 is fixedly provided on the periphery of the sleeve 132, and the second guide sleeve 1321 is limited and assembled with the first nut 152.

[0040] This configuration provides precise guide paths for the pull rod 131 and the sleeve 132. Driven by the first nut 152 and the second nut 153, the pull rod 131 and the sleeve 132 can only move along the specified straight line, ensuring the straightness and accuracy of the movement. At the same time, it enables the pull rod 131 and the 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.

[0041] The defect detection sock support device also includes a mounting frame 2, which houses the sock support assembly 1. The mounting frame 2 also houses a second transmission component 4 and a second motor 5. The second motor 5 drives the assembly cylinder 12 to rotate via the second transmission component 4.

[0042] This setup uses the sock support assembly 1 to rotate the socks synchronously, allowing the sock surface to be fully displayed in front of the camera and other inspection equipment. This captures information from various parts of the sock, such as the cuff, body, heel, and toe, improving the accuracy and comprehensiveness of sock defect detection. In addition, it ensures that the time and angle of light exposure on different parts of the sock surface are relatively uniform, which is conducive to obtaining clearer and more accurate sock images, reducing misjudgments caused by uneven lighting, and improving the reliability of the inspection.

[0043] Preferably, the mounting frame 2 includes a first horizontal plate 21 and a second horizontal plate 22 spaced apart. The assembly cylinder 12 is mounted on the first horizontal plate 21 via a bearing 3. The second motor 5 is located on the side of the assembly cylinder 12 and fixed on the second horizontal plate 22.

[0044] This arrangement allows the assembly cylinder 12 to be mounted on the first horizontal plate 21 via the bearing 3. Its weight and the force generated during operation are primarily borne by the first horizontal plate 21, while the second horizontal plate 22 provides stable support for the second motor 5. This results in a more even and reasonable distribution of force across the entire mounting frame 2, reducing structural deformation or damage caused by excessive localized stress and improving the overall stability of the equipment. Because there is a certain distance between the second horizontal plate 22 and the first horizontal plate 21, vibrations are attenuated to a certain extent during transmission, thus reducing the impact of vibrations on the assembly cylinder 12 and ensuring the accuracy and stability of the detection and sorting process. Preferably, an annular rib 123 is provided around the assembly cylinder 12 to limit the upper part of the bearing 3.

[0045] Preferably, the mounting bracket 2 further 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.

[0046] This configuration forms a multi-layered support structure, effectively reducing the shaking or deformation of the mounting frame 2 caused by motor operation, ensuring the stability of the equipment during long-term operation, and providing a reliable foundation for precise sock sorting operations. Simultaneously, it distributes the forces generated by components such as the first motor 16, the second motor 5, and the assembly cylinder 12 across the plate, avoiding excessive localized stress and extending service life. The mounting frame 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 relationships are existing technology and will not be elaborated here.

[0047] 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 sock stretcher device for defect detection, characterized in that, The device includes a sock support assembly (1), which includes a vertical moving part (13), a horizontal moving part (14), an assembly sleeve (12), and an arc-shaped support plate (11) arranged from the inside out. 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 support assembly (1) also includes a first motor (16) and a first transmission part (15) connected to each other. 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, so as to cooperate with the horizontal moving part (14) to simultaneously apply force to the upper and lower sides of the arc-shaped support plate (11) to open it.

2. The defect detection stocking apparatus according to claim 1, characterized in that, The first transmission component (15) includes a vertically arranged lead screw (151), on which a first nut (152) and a second nut (153) are fitted. The first nut (152) is connected to the lead screw (151) by a reverse thread and is connected to one of the pull rod (131) and the sleeve (132). The second nut (153) is connected to the lead screw (151) by a positive thread and is connected to the other of the pull rod (131) and the sleeve (132).

3. The defect detection stocking apparatus according to claim 2, characterized in that, A first guide sleeve (1311) is fixedly provided on the periphery of the pull rod (131), and a first limiting post is provided on the side of the second nut (153) for limiting assembly with the first guide sleeve (1311); a second guide sleeve (1321) is fixedly provided on the periphery of the sleeve (132), the second guide sleeve (1321) is located above the first guide sleeve (1311), and a second limiting post is provided on the side of the first nut (152) for limiting assembly with the second guide sleeve (1321).

4. The defect detection stocking apparatus according to claim 3, characterized in that, The first transmission component (15) also includes guide rods (154), there are two guide rods (154) and they are located on both sides of the lead screw (151). The guide rods (154) pass through the first nut (152) and the second nut (153) in sequence.

5. The defect detection stocking apparatus according to claim 1, characterized in that, There are multiple arc-shaped support plates (11) arranged at intervals along the periphery of the assembly cylinder (12). The multiple arc-shaped support plates (11) are coaxially arranged with the assembly cylinder (12) and their ends are respectively constrained by elastic members.

6. The defect detection stocking apparatus according to claim 5, characterized in that, Multiple of the arc-shaped support plates (11) extend along the length direction of the assembly cylinder (12) and their upper surfaces are on the same inclined plane.

7. The defect detection stocking apparatus according to claim 1, characterized in that, The assembly cylinder (12) includes a first notch (121) and a second notch (122) arranged vertically. The transverse moving part (14) includes a first inclined moving block (141) and a second inclined moving block (142). The first inclined moving block (141) passes through the first notch (121) and is connected to the upper part of the arc-shaped support plate (11). The second inclined moving block (142) passes through the second notch (122) and is connected to the lower part of the arc-shaped support plate (11). The upper end of the pull rod (131) is provided with an upper cone (133). The tip of the upper cone (133) faces downward and abuts against the first inclined moving block (141). The top outer periphery of the sleeve (132) is provided with a lower cone (134). The tip of the lower cone (134) faces upward and abuts against the second inclined moving block (142).

8. The defect detection stocking apparatus according to claim 1, characterized in that, The defect detection sock support device also includes a mounting frame (2), which is provided with the sock support assembly (1). The mounting frame (2) is provided with a second transmission component (4) and a second motor (5). The second motor (5) drives the assembly cylinder (12) to rotate through the second transmission component (4). The second transmission component (4) is a belt.

9. The defect detection stocking apparatus according to claim 8, characterized in that, The mounting bracket (2) includes a first horizontal plate (21) and a second horizontal plate (22) arranged at an upper and lower interval. The assembly cylinder (12) is mounted on the first horizontal plate (21) by a bearing (3). The second motor (5) is located on the side of the assembly cylinder (12) and fixed on the second horizontal plate (22).

10. The defect detection stocking apparatus according to claim 9, characterized in that, 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 the first motor (16) in place. The first motor (16) is located below the third horizontal plate (23).

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