Conveying needle inspection machine

Abstract

The utility model relates to the technical field of inspection, disclose conveying type needle testing machine, including belt conveyor, the outside fixed mounting of belt conveyor has the cabinet, the left and right two ends of cabinet all are set up with first through slot, the inside rear side fixed mounting of cabinet has manual screw module, the front side fixed mounting of manual screw module has upper detection inductor, the inside fixed mounting of the frame of belt conveyor has lower detection inductor, upper detection inductor and lower detection inductor align and parallelly arranged, the inside right side mounting of cabinet has the material shifting subassembly, the inside left side mounting of cabinet has the push -out mechanism. The utility model discloses through the material shifting subassembly to the surface of the article that enters is driven, effectively peeling the upper layer of stacked articles, solved the problem that when the article is stacked, which article contains the needle head cannot be distinguished and causes the problem of traceability difficulty, when the unqualified article with needle head reaches infrared sensor group position, the belt conveyor suspends the delivery, and the push -out mechanism pushes out the unqualified article forward, and manual removal is not needed.

Description

Technical Field

[0001] This utility model relates to the field of testing technology, specifically a conveyor-type needle detector. Background Technology

[0002] Sewing is involved in many stages of garment production, such as cutting, component assembly, partial decoration, overall shaping, and finishing. To ensure product safety and compliance, needle inspection has become an indispensable part of quality control.

[0003] Existing conveyor-type needle detectors mainly consist of a belt conveyor, an upper detection sensor, and a lower detection sensor. The upper and lower detection sensors form a detection channel. A strong magnetic field is used to detect ferromagnetic objects in the item. When a metal needle or broken needle passes through the detection channel, its trajectory cuts the magnetic field lines, causing magnetic field distortion. The industrial host can accurately determine the presence of the needle by analyzing the changes in the electromagnetic induction signal.

[0004] Although it is possible to determine whether an item contains a needle, if the incoming items are stacked, it is impossible to distinguish which item contains the needle, making traceability difficult. In addition, non-conforming items need to be manually removed, which is not convenient for the operation.

[0005] Therefore, in order to solve the above problems, a conveyor-type needle detector was proposed. Utility Model Content

[0006] The purpose of this invention is to provide a conveyor-type needle detector with a structure that removes and avoids stacking of items, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a conveyor-type needle detector, including a belt conveyor, a cabinet fixedly installed on the outside of the belt conveyor, a first through slot opened at both ends of the cabinet, a manual screw module fixedly installed on the rear inside the cabinet, an upper detection sensor fixedly installed on the front side of the slide of the manual screw module, a lower detection sensor fixedly installed inside the frame of the belt conveyor, the upper and lower detection sensors being aligned and parallel, a material feeding assembly installed on the right inside the cabinet, and a push-out mechanism installed on the left inside the cabinet.

[0008] Specifically, the ejection mechanism includes an electric lead screw module, an electromagnetic chuck, and a V-shaped plate. The electric lead screw module is fixedly installed inside the cabinet. The slide of the electric lead screw module is fixedly installed with a central shaft and an L-shaped plate. The V-shaped plate is rotatably installed on the central shaft. An electromagnetic chuck is fixedly installed on the upper side of the L-shaped plate. The electromagnetic chuck is located above the upper folded edge of the V-shaped plate.

[0009] Furthermore, when the lower folded edge of the V-shaped plate is in a vertical state, it abuts against the rear side of the L-shaped plate.

[0010] Furthermore, the front side of the cabinet is provided with a second through slot for aligning and pushing out the mechanism, and a curtain for covering the second through slot is fixedly installed on the front side of the cabinet.

[0011] Specifically, the material feeding assembly includes a worm gear reducer and an elastic plate. The worm gear reducer is fixedly assembled with the cabinet. A handwheel is fixedly installed at the input end of the worm gear reducer, and an elastic plate is fixedly installed at the output end of the worm gear reducer. The elastic plate is an arc-shaped plate with a downward concave center.

[0012] Furthermore, the feeding assembly also includes V-shaped ribs, and the elastic plate is uniformly fixedly installed with V-shaped ribs on the side facing the belt conveyor.

[0013] Specifically, an infrared sensor group is fixedly installed on the left side of the cabinet's interior, and the infrared sensor group is located on the left side of the ejection mechanism.

[0014] Compared with the prior art, the beneficial effects of this utility model are: Avoiding item stacking and facilitating traceability: The material feeding component moves the surface of incoming items. Its elastic plate can adjust the tilt angle according to the stacking height of the items, and the V-shaped ridges on the elastic plate can increase the friction when in contact with the upper layer of items, effectively separating the upper stacked items. This solves the problem of not being able to distinguish which item contains a needle when items are stacked, which makes traceability difficult.

[0015] Automatic rejection of defective items, convenient operation: The infrared sensor group detects the passage of items. When a defective item with a needle reaches the position, the belt conveyor stops conveying. The ejection mechanism drives the V-shaped plate and other components to push the defective item forward through the electric screw module. There is no need to manually remove it, realizing the automatic rejection of defective items and improving the convenience of operation. Attached Figure Description

[0016] Figure 1 This is a schematic front view of the structure of this utility model; Figure 2 This is a schematic cross-sectional view of the structure of this utility model; Figure 3 for Figure 1 A schematic cross-sectional view of the structure of the AA-type launch mechanism; Figure 4 This is an enlarged schematic diagram of the structure of the ejection mechanism of this utility model; Figure 5 This is a schematic diagram of the material feeding assembly of this utility model; Figure 6 This is a schematic diagram of the structure of the V-shaped protrusion of this utility model.

[0017] In the diagram: 1. Belt conveyor, 2. Lower detection sensor, 3. Push-out mechanism, 31. Electric lead screw module, 32. L-shaped plate, 33. Electromagnetic chuck, 34. Central shaft, 35. V-shaped plate, 4. Infrared sensor group, 5. First through slot, 6. Manual lead screw module, 7. Cabinet, 8. Upper detection sensor, 9. Material feeding assembly, 91. Worm gear reducer, 92. Elastic plate, 93. V-shaped rib, 10. Curtain, 11. Second through slot. Detailed Implementation

[0018] 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 protection scope of the present utility model.

[0019] Please see Figure 1 and Figure 2 This utility model provides a conveyor-type needle detector, including a belt conveyor 1. A cabinet 7 is fixedly installed on the outside of the belt conveyor 1. The cabinet 7 is composed of a cabinet body and a cabinet door hinged to the front. First through slots 5 are opened at both the left and right ends of the cabinet 7. The belt conveyor 1 is an existing component composed of a frame, rollers, belts, drive unit and other structures, used to convey items from right to left, so that the items pass through the cabinet 7 one by one.

[0020] A manual lead screw module 6 is fixedly installed inside the rear of the cabinet 7. The manual lead screw module 6 is set vertically. An upper detection sensor 8 is fixedly installed on the front side of the slide of the manual lead screw module 6. A lower detection sensor 2 is fixedly installed inside the frame of the belt conveyor 1. The upper detection sensor 8 and the lower detection sensor 2 are aligned and set parallel to each other.

[0021] The manual lead screw module 6 can raise and lower the upper detection sensor 8 according to the detection requirements, thereby adjusting the distance between the upper detection sensor 8 and the lower detection sensor 2 to match the height of the object to be detected and change the magnetic field strength (the magnetic field strengthens when the distance between the upper detection sensor 8 and the lower detection sensor 2 decreases, and the magnetic field weakens when the distance increases), ensuring that the magnetic field strength meets the detection requirements while the object can pass through smoothly.

[0022] The right side of the cabinet 7 is equipped with a material feeding assembly 9, which is used to move the surface of the incoming items to prevent the items from stacking and increasing the conveying height, and also to avoid affecting the detection accuracy. The left side of the cabinet 7 is equipped with a push-out mechanism 3, which is used to push out unqualified items separately from qualified items.

[0023] Specifically: Please see Figure 3 and Figure 4 Introducing Organization 3: The ejection mechanism 3 includes an electric lead screw module 31, an electromagnetic chuck 33, and a V-shaped plate 35. The electric lead screw module 31 is fixedly installed inside the cabinet 7. The electric lead screw module 31 is horizontal and arranged along the front-back direction. The slide of the electric lead screw module 31 is fixedly installed with a central shaft 34 and an L-shaped plate 32. The V-shaped plate 35 is rotatably installed on the central shaft 34. The V-shaped plate 35 is welded from a rotating drum and an upper folded edge and a lower folded edge fixedly installed on the circumference of the rotating drum. The length of the upper folded edge is less than that of the lower folded edge. The V-shaped plate 35 can swing around the central shaft 34.

[0024] An electromagnetic chuck 33 is fixedly installed on the upper side of the L-shaped plate 32. The electromagnetic chuck 33 is located above the upper folded edge of the V-shaped plate 35. The electric screw module 31 can move the components set on the slide back and forth. When the electromagnetic chuck 33 is energized, it can magnetically attract the upper folded edge, thereby swinging the V-shaped plate 35 clockwise, that is, lifting the lower folded edge. Correspondingly, the upper folded edge is made of a magnetically attractable metal material. When the electromagnetic chuck 33 is not magnetically attracting, the lower folded edge of the V-shaped plate 35 is in a vertical state and abuts against the rear side of the L-shaped plate 32.

[0025] When the lower fold edge of the V-shaped plate 35 pushes the item forward, the lower fold edge is subjected to a backward force, while the opposing L-shaped plate 32 can provide sufficient support for the lower fold edge to keep it vertical.

[0026] The front side of the cabinet 7 is provided with a second channel 11 for aligning the push-out mechanism 3. A curtain 10 for blocking the second channel 11 is fixedly installed on the front side of the cabinet 7. The curtain 10 is made of soft rubber material. When the push-out mechanism 3 pushes the item forward, it can be discharged through the second channel 11. When the item is not discharged, the curtain 10 hangs down naturally to block the second channel 11.

[0027] The electric ball screw module 31 can be a THK KR series electric ball screw module, and the specific model can be selected according to the actual load and stroke; the electromagnetic chuck 33 can be a Honeywell 30L series electromagnetic chuck, and the specific model can be selected according to the suction force and size.

[0028] Please see Figure 5 and Figure 6 The form of the feeding assembly 9: The material feeding assembly 9 includes a worm gear reducer 91 and an elastic plate 92. The worm gear reducer 91 is fixedly assembled with the cabinet 7. A handwheel is fixedly installed at the input end of the worm gear reducer 91, and an elastic plate 92 is fixedly installed at the output end of the worm gear reducer 91. The elastic plate 92 is an arc-shaped plate with a downward concave center, and the material of the elastic plate 92 can be polyurethane.

[0029] The handwheel can be rotated via the worm gear reducer 91 to change the tilt angle of the elastic plate 92, thereby changing the distance between the lower end of the elastic plate 92 and the upper surface of the belt conveyor 1. It can be adaptively adjusted according to the possible stacking height of the items, so that the lower end of the elastic plate 92 can contact the stacked items on the upper layer, and it also has the ability to deform.

[0030] The material-removing assembly 9 also includes V-shaped ribs 93. V-shaped ribs 93 are uniformly fixedly installed on the side of the elastic plate 92 facing the belt conveyor 1. The material of the V-shaped ribs 93 is rubber, which is used to increase the friction when the elastic plate 92 contacts the upper layer of items, thereby achieving the function of removing the upper layer of items.

[0031] In addition, an infrared sensor group 4 is fixedly installed on the left side of the inside of the cabinet 7. The infrared sensor group 4 is located on the left side of the ejection mechanism 3. The infrared sensor group 4 includes an infrared transmitter and an infrared receiver, which are fixedly installed on the front and rear sides of the inside of the cabinet 7 respectively. When an item passes through the infrared sensor group 4, the infrared light will be blocked, so the passage and quantity of each item can be known.

[0032] Infrared sensor group 4 can use Omron's E3Z-series infrared sensors; the specific model can be selected based on the detection distance and output signal.

[0033] The electric lead screw module 31, electromagnetic chuck 33, and infrared sensor group 4, among other electrical components, are connected to an external industrial host computer to achieve data acquisition, analysis, and collaborative control.

[0034] Working principle: When in use, the belt conveyor 1 is connected to the garment production line and installed after the process that needs to be inspected. Items (such as cut pieces, sewn parts or garments) enter from the right end of the belt conveyor 1 and exit from the left end. When passing through the box 7, they first pass through the material-separating component 9, which can separate the stacked items on the upper layer to avoid difficulties in traceability caused by stacking.

[0035] When materials pass between the upper detection sensor 8 and the lower detection sensor 2, items without needles will not affect the magnetic field, while items with needles will cut the magnetic field lines and cause magnetic field distortion when passing through a strong magnetic field. Therefore, it is known whether the items are qualified. When unqualified items with needles reach the position of the infrared sensor group 4, the belt conveyor 1 stops conveying, and the push-out mechanism 3 pushes the unqualified items forward. They can be collected by the placed turnover box for subsequent processing. Qualified items enter the next process along the belt conveyor 1.

[0036] The V-shaped plate 35, which moves backward and resets, can be attracted by the electromagnetic chuck 33 and swing up without affecting the continued conveying of the items below, thereby reducing the pause time of the belt conveyor 1 and ensuring good operational continuity.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A conveyor-type needle detector, comprising a belt conveyor (1), characterized in that: A cabinet (7) is fixedly installed on the outside of the belt conveyor (1). A first through slot (5) is opened at both the left and right ends of the cabinet (7). A manual screw module (6) is fixedly installed on the rear side inside the cabinet (7). An upper detection sensor (8) is fixedly installed on the front side of the slide table of the manual screw module (6). A lower detection sensor (2) is fixedly installed inside the frame of the belt conveyor (1). The upper detection sensor (8) and the lower detection sensor (2) are aligned and parallel. A material feeding assembly (9) is installed on the right side inside the cabinet (7). A push-out mechanism (3) is installed on the left side inside the cabinet (7).

2. The conveyor-type needle detector according to claim 1, characterized in that: The ejection mechanism (3) includes an electric screw module (31), an electromagnetic chuck (33), and a V-shaped plate (35). The electric screw module (31) is fixedly installed inside the cabinet (7). The slide of the electric screw module (31) is fixedly installed with a central shaft (34) and an L-shaped plate (32). The V-shaped plate (35) is rotatably installed on the central shaft (34). The electromagnetic chuck (33) is fixedly installed on the upper side of the L-shaped plate (32). The electromagnetic chuck (33) is located above the upper folded edge of the V-shaped plate (35).

3. The conveyor-type needle detector according to claim 2, characterized in that: When the lower fold of the V-shaped plate (35) is in a vertical state, it abuts against the rear side of the L-shaped plate (32).

4. The conveyor-type needle detector according to claim 2, characterized in that: The front side of the cabinet (7) is provided with a second through slot (11) for the alignment and ejection mechanism (3), and a curtain (10) for covering the second through slot (11) is fixedly installed on the front side of the cabinet (7).

5. The conveyor-type needle detector according to claim 1, characterized in that: The feeding assembly (9) includes a worm gear reducer (91) and an elastic plate (92). The worm gear reducer (91) is fixedly assembled with the cabinet (7). A handwheel is fixedly installed at the input end of the worm gear reducer (91), and an elastic plate (92) is fixedly installed at the output end of the worm gear reducer (91). The elastic plate (92) is an arc-shaped plate with a downward concave center.

6. The conveyor-type needle detector according to claim 5, characterized in that: The feeding assembly (9) also includes V-shaped ribs (93), and the elastic plate (92) is uniformly fixedly installed with V-shaped ribs (93) on the side facing the belt conveyor (1).

7. The conveyor-type needle detector according to claim 1, characterized in that: An infrared sensor group (4) is fixedly installed on the left side of the inside of the cabinet (7), and the infrared sensor group (4) is located on the left side of the ejection mechanism (3).

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