Needle inspection machine for curtain production

By designing the smoothing and driving components, the problem of wrinkles affecting needle detection efficiency during curtain fabric transport was solved, achieving efficient metal foreign object detection and improving the overall performance of the curtain needle detector.

CN224243528UActive Publication Date: 2026-05-15YANCHENG DAFENG DISTRICT LIANXIN TEXTILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANCHENG DAFENG DISTRICT LIANXIN TEXTILE CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Deep wrinkles in the curtain fabric during transport affect the needle sensing efficiency, and long curtains lack traction, resulting in a low needle detection rate.

Method used

The system employs smoothing and driving components, eliminates wrinkles by adjusting the elastic limit roller, uses gear transmission to clamp and pull the curtain, and combines photoelectric sensing and magnetic induction modules to improve detection accuracy and efficiency.

Benefits of technology

It effectively eliminates interference from folds, improves the detection accuracy of needle detectors and the conveying efficiency of long curtains, and enhances the continuity and accuracy of metal foreign object detection.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224243528U_ABST
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Abstract

The utility model belongs to the field of curtain needle inspection, and particularly relates to a needle inspection machine for curtain production, which comprises a table body. A motor A is arranged at one end of the table body, the output end of the motor A penetrates through the side face of the table body to be connected with a conveying belt, a portal frame is arranged at the top of the table body, a control module is arranged in the portal frame and electrically connected with a photoelectric sensing module and a magnetic induction module, and a fixing plate A and a fixing plate B are arranged at the two ends of the table body respectively. A smoothing assembly is arranged at the top of the fixing plate A, and a driving assembly is arranged at the top of the fixing plate B; the flattening assembly comprises L-shaped plates on the two sides of the top of the A fixing plate. Springs at the two ends of a transverse plate of the smoothing assembly are matched with limiting columns, the limiting columns are inserted into L-shaped plate limiting holes, the springs elastically adjust the height of the transverse plate, a roller is driven to press curtain cloth up and down, surface wrinkles are smoothed, the problem that the wrinkles interfere with needle inspection precision is solved, and the detection accuracy of a photoelectric sensing module and a magnetic induction module is improved.
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Description

Technical Field

[0001] This utility model relates to the field of needle inspection in curtains, specifically a needle inspection machine used in curtain production. Background Technology

[0002] A ferromagnetic metal induction instrument is used to detect broken needles or ferromagnetic foreign objects in textiles. A needle detector (also known as a needle detector or needle detector) is a ferromagnetic metal induction instrument and belongs to the application equipment of metal detectors in the textile industry. It is mainly used to detect broken needles, iron wires or other ferromagnetic metal foreign objects in textiles to avoid these sharp foreign objects from causing harm to consumers.

[0003] In the prior art, such as in CN217026444U, a needle detector is disclosed. It includes a needle detector body and a cleaning device for cleaning the surface of the conveyor belt of the needle detector body. The cleaning device includes a bracket, which is fixed to the end of the conveyor belt of the needle detector body. A scraper is installed on the bracket. The scraper is inclined at a certain angle to the surface of the conveyor belt and one side of the scraper abuts against the surface of the conveyor belt. The cleaning device also includes a collection box for collecting the debris scraped by the scraper from the surface of the conveyor belt. The collection box is located below the scraper and is detachably installed on the needle detector body.

[0004] While the aforementioned patents improve the accuracy of needle detectors and maintain the cleanliness of the garments being inspected, the deep wrinkles generated during the transport of curtain fabric affect the sensing efficiency of the needles, thus impacting the needle detection results. Furthermore, the long length of curtain fabric reduces traction during needle transport, lowering the detection rate. Therefore, a needle detector for curtain production is proposed to address these issues. Utility Model Content

[0005] To address the shortcomings of existing technologies, such as the deep folds generated during the conveying of curtain fabric affecting the sensing efficiency of the needle and thus the needle detection effect, and the lack of traction during the conveying of long curtain fabric reducing the needle detection rate, this invention proposes a needle detection machine for curtain production.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A needle detector for curtain production, as described in this utility model, includes a platform; an A motor is installed at one end of the platform, the output end of the A motor passes through the side of the platform and is connected to a conveyor belt; a gantry frame is installed at the top of the platform, and a control module is installed inside the gantry frame; the control module is electrically connected to a photoelectric sensing module and a magnetic induction module; an A fixing plate and a B fixing plate are respectively installed at both ends of the platform; a smoothing component is installed on the top of the A fixing plate, and a driving component is installed on the top of the B fixing plate; the smoothing component includes L-shaped plates on both sides of the top of the A fixing plate, the L... The L-shaped plates are symmetrically arranged with limiting holes at equal intervals on their surfaces. Horizontal plates are symmetrically arranged vertically between the L-shaped plates. Limiting posts are connected to both ends of each horizontal plate via springs. Rollers are movably connected to the bottom and top of each horizontal plate. The drive assembly includes a square frame fixed to the top of a B-shaped plate. A motor plate is arranged on the side of the square frame, and a B-shaped motor is mounted on the top of the motor plate. Gear A is fixed to the output end of the B-shaped motor, and gear A meshes with gear B. Moving rollers are symmetrically arranged vertically inside the square frame. One end of each moving roller is rotatably connected to the inner wall of the square frame, and the other end is fixedly connected to gear A and gear B respectively via a transmission rod passing through the side of the square frame.

[0007] Preferably, the limiting post of the horizontal plate is inserted into the limiting hole of the L-shaped plate, and the extension and retraction direction of the spring is parallel to the axis of the limiting hole.

[0008] Preferably, the surface of the moving roller is covered with an anti-slip rubber layer, and the distance between the upper and lower moving rollers is adjusted by the meshing transmission of gear A and gear B.

[0009] Preferably, the axis of the roller is perpendicular to the direction of movement of the conveyor belt, and the outer wall of the roller has a smooth arc-shaped curved surface structure.

[0010] Preferably, the detection areas of the photoelectric sensing module and the magnetic sensing module are located directly above the conveyor belt, and the scanning direction of the photoelectric sensing module is perpendicular to the movement path of the curtain.

[0011] Preferably, the inner sidewall of the square frame is provided with a wear-resistant slide rail, and the transmission rod of the moving roller forms a sliding fit structure with the slide rail.

[0012] The advantages of this utility model are:

[0013] 1. This utility model uses springs at both ends of the horizontal plate of the smoothing component to cooperate with the limiting posts. The limiting posts are inserted into the limiting holes of the L-shaped plate, and the springs elastically adjust the height of the horizontal plate, driving the rollers to press the curtain fabric up and down, smoothing the surface wrinkles. This solves the problem of wrinkles interfering with the needle detection accuracy and improves the detection accuracy of the photoelectric sensing module and the magnetic induction module.

[0014] 2. This utility model uses a drive assembly to drive gear A and gear B through motor B, which in turn drives the upper and lower moving rollers to rotate in opposite directions, clamping and pulling the curtain fabric to move. This solves the problem of low conveying efficiency for long curtains and improves the continuity of needle inspection. The anti-slip rubber layer on the surface of the moving rollers enhances friction and prevents the fabric from slipping. The smooth arc-shaped surface design of the rollers reduces friction damage to the fabric. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the platform structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the smoothing component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the drive component structure of this utility model.

[0020] In the diagram: 1. Platform; 2. Motor A; 3. Conveyor belt; 4. Gantry frame; 5. Control module; 6. Photoelectric sensor module; 7. Magnetic induction module; 8. Fixed plate A; 9. Fixed plate B; 10. Smoothing component; 101. L-shaped plate; 102. Limiting hole; 103. Horizontal plate; 104. Spring; 105. Limiting post; 106. Roller; 11. Drive component; 111. Square frame; 112. Motor plate; 113. Motor B; 114. Gear A; 115. Gear B; 116. Moving roller. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figures 1-4As shown, a needle detector for curtain production includes a platform 1; an A motor 2 is installed at one end of the platform 1, and the output end of the A motor 2 passes through the side of the platform 1 and is connected to a conveyor belt 3; a gantry frame 4 is installed on the top of the platform 1, and a control module 5 is installed inside the gantry frame 4. The control module 5 is electrically connected to a photoelectric sensing module 6 and a magnetic induction module 7; an A fixing plate 8 and a B fixing plate 9 are respectively installed at both ends of the platform 1; a smoothing component 10 is installed on the top of the A fixing plate 8, and a drive component 11 is installed on the top of the B fixing plate 9; the smoothing component 10 includes L-shaped plates 101 on both sides of the top of the A fixing plate 8, with equidistant limiting holes 102 on the surface of the L-shaped plates 101, and horizontal plates 103 symmetrically arranged vertically between the L-shaped plates 101. The two ends of the plate 103 are connected to the limiting post 105 by springs 104. The bottom and top of the horizontal plate 103 are respectively movably connected to the roller 106. The drive assembly 11 includes a square frame 111 on the top of the B fixed plate 9. A motor plate 112 is arranged on the side of the square frame 111. A motor 113 is arranged on the top of the motor plate 112. A gear 114 is fixed at the output end of the B motor 113. A gear 114 meshes with a gear 115. Moving rollers 116 are symmetrically arranged inside the square frame 111. One end of the moving roller 116 is rotatably connected to the inner wall of the square frame 111. The other end is fixedly connected to the A gear 114 and the B gear 115 respectively through a transmission rod through the side of the square frame 111.

[0023] During operation, motor A 2 drives the conveyor belt 3 to move the curtain. The horizontal plate 103 of the smoothing component 10 is adjusted up and down in the limiting hole 102 of the L-shaped plate 101 by spring 104 and limiting post 105. Roller 106 presses the surface of the curtain to eliminate wrinkles. Motor B 113 of drive component 11 drives gear A 114 and gear B 115 to mesh and drive, so that the upper and lower moving rollers 116 rotate in opposite directions to clamp and pull the curtain. The photoelectric sensing module 6 and magnetic induction module 7 in the gantry frame 4 vertically scan the curtain on the conveyor belt 3 to detect metal foreign objects. The smoothing component 10 adjusts the height of the horizontal plate 103 to adapt to curtains of different thicknesses by elastically adjusting the height, eliminating wrinkles that interfere with needle detection. Gear transmission drives the moving rollers 116 to clamp and pull, improving the efficiency of needle detection for long curtains.

[0024] Furthermore, the limiting post 105 of the horizontal plate 103 is inserted into the limiting hole 102 of the L-shaped plate 101, and the extension and retraction direction of the spring 104 is parallel to the axis of the limiting hole 102.

[0025] During operation, after the limiting posts 105 at both ends of the horizontal plate 103 are inserted into the limiting holes 102 of the L-shaped plate 101, the spring 104 extends and retracts along the axis of the limiting hole 102. By manually adjusting the limiting posts 105 to be inserted into the limiting holes 102 at different heights, the position of the horizontal plate 103 is fixed. The spring 104 buffers the pressure of the curtain thickness change on the horizontal plate 103. The insertion structure of the limiting hole 102 and the limiting post 105 enables the rapid adjustment of the height of the horizontal plate 103. The spring 104 buffers and protects the structural stability of the horizontal plate 103.

[0026] Furthermore, the surface of the moving roller 116 is covered with an anti-slip rubber layer, and the distance between the upper and lower moving rollers 116 is adjusted by the meshing transmission of gear A 114 and gear B 115.

[0027] During operation, the anti-slip rubber layer on the surface of the moving roller 116 increases the friction with the curtain. When the B motor 113 drives the A gear 114 and the B gear 115 to mesh, the transmission rods of the upper and lower moving rollers 116 move synchronously in opposite directions. The distance between the two rollers is adjusted by the gear tooth pitch to match the thickness of the curtain. The anti-slip rubber layer prevents the curtain from slipping. The gear meshing transmission precisely controls the distance between the moving rollers 116.

[0028] Furthermore, the axis of the roller 106 is perpendicular to the direction of movement of the conveyor belt 3, and the outer wall of the roller 106 is a smooth arc-shaped curved surface structure.

[0029] During operation, the axis of roller 106 is perpendicular to the direction of movement of conveyor belt 3. When the curtain passes through roller 106, it unfolds evenly along the smooth arc surface. The curved surface design reduces the frictional resistance of the fabric surface. The smooth curved surface of roller 106 avoids scratching the fabric. The vertical axis arrangement guides the curtain to move smoothly.

[0030] Furthermore, the detection areas of the photoelectric sensing module 6 and the magnetic sensing module 7 are located directly above the conveyor belt 3, and the scanning direction of the photoelectric sensing module 6 is perpendicular to the movement path of the curtain.

[0031] During operation, the detection areas of the photoelectric sensing module 6 and the magnetic induction module 7 are aligned with the center line of the conveyor belt 3. The scanning beam of the photoelectric sensing module 6 is perpendicular to the direction of curtain movement, and the magnetic induction module 7 covers the entire width of the curtain to detect ferromagnetic foreign objects. The perpendicular scanning direction improves the positioning accuracy of foreign objects, and the full coverage detection of the magnetic induction module 7 reduces missed detections.

[0032] Furthermore, the inner wall of the square frame 111 is provided with a wear-resistant slide rail, and the transmission rod of the moving roller 116 forms a sliding fit structure with the slide rail;

[0033] During operation, the wear-resistant slide rail on the inner side of the square frame 111 slides in conjunction with the transmission rod of the moving roller 116. When the transmission rod moves along the slide rail, the frictional resistance is reduced. The coating on the slide rail surface reduces wear. The slide rail structure ensures that the spacing of the moving roller 116 is adjusted smoothly. The wear-resistant coating extends the service life of the square frame 111.

[0034] Working principle: The curtain is conveyed by the conveyor belt 3 driven by motor A 2 on the platform 1. When the curtain passes the smoothing component 10 of the fixed plate A 8, the horizontal plate 103 is elastically adjusted in height in the limiting hole 102 of the L-shaped plate 101 by spring 104 and limiting post 105, which drives the roller 106 to flatten the surface wrinkles. Then the curtain is driven by motor B 113 in the drive component 11 of the fixed plate B 9, which drives gear A 114 and gear B 115 to mesh and drive the upper and lower moving rollers 116 to clamp and pull the curtain. The photoelectric sensing module 6 and magnetic induction module 7 in the gantry frame 4 vertically scan the curtain on the conveyor belt 3, detect metal foreign objects and feed back to the control module 5. The anti-slip rubber layer on the surface of the moving roller 116 enhances the traction stability. The wear-resistant slide rail inside the square frame 111 ensures smooth adjustment of the spacing of the moving roller 116. The smooth arc surface of the roller 106 reduces fabric wear.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or similar improvements made within the theoretical and principle content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A needle detector for curtain production, characterized in that: The system includes a platform (1); one end of the platform (1) is equipped with an A motor (2), the output end of the A motor (2) passes through the side of the platform (1) and is connected to a conveyor belt (3); a gantry frame (4) is installed on the top of the platform (1); a control module (5) is installed inside the gantry frame (4); the control module (5) is electrically connected to a photoelectric sensing module (6) and a magnetic induction module (7); an A fixing plate (8) and a B fixing plate (9) are respectively installed at both ends of the platform (1); a smoothing component (10) is installed on the top of the A fixing plate (8); and a drive component (11) is installed on the top of the B fixing plate (9). The smoothing component (10) includes L-shaped plates (101) on both sides of the top of the A fixed plate (8). Limiting holes (102) are equidistantly opened on the surface of the L-shaped plates (101). Horizontal plates (103) are symmetrically arranged between the L-shaped plates (101). Limiting posts (105) are connected to both ends of the horizontal plates (103) by springs (104). Rollers (106) are movably connected to the bottom and top of the horizontal plates (103). The drive assembly (11) includes a square frame (111) on the top of a B fixed plate (9), a motor plate (112) on the side of the square frame (111), a B motor (113) on the top of the motor plate (112), an A gear (114) fixed at the output end of the B motor (113), the A gear (114) meshing with the B gear (115), and symmetrically arranged moving rollers (116) inside the square frame (111). One end of the moving roller (116) is rotatably connected to the inner wall of the square frame (111), and the other end is fixedly connected to the A gear (114) and the B gear (115) respectively through a transmission rod through the side of the square frame (111).

2. A needle detector for curtain production according to claim 1, characterized in that: The limiting post (105) of the horizontal plate (103) is inserted into the limiting hole (102) of the L-shaped plate (101), and the extension and retraction direction of the spring (104) is parallel to the axis of the limiting hole (102).

3. A needle detector for curtain production according to claim 1, characterized in that: The surface of the moving roller (116) is covered with an anti-slip rubber layer, and the distance between the upper and lower moving rollers (116) is adjusted by the meshing transmission of gear A (114) and gear B (115).

4. A needle detector for curtain production according to claim 1, characterized in that: The axis of the roller (106) is perpendicular to the moving direction of the conveyor belt (3), and the outer wall of the roller (106) is a smooth arc-shaped curved surface structure.

5. A needle detector for curtain production according to claim 1, characterized in that: The detection areas of the photoelectric sensing module (6) and the magnetic sensing module (7) are located directly above the conveyor belt (3), and the scanning direction of the photoelectric sensing module (6) is perpendicular to the movement path of the curtain.

6. A needle detector for curtain production according to claim 1, characterized in that: The inner wall of the square frame (111) is provided with a wear-resistant slide rail, and the transmission rod of the moving roller (116) forms a sliding fit structure with the slide rail.