Universal nut detection device

By designing an automated universal nut inspection device, which utilizes the cooperation of a conveyor belt and a hydraulic cylinder pusher plate, the device achieves automatic sorting of defective products. This solves the problem of high labor intensity caused by manual removal of defective products in existing technologies, and improves inspection efficiency and product quality.

CN223960075UActive Publication Date: 2026-03-03INTECH PRECISION INJECTION MOLDING (SUZHOU) CO LTD
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Patent Information

Application Number
CN202422842940.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2026-03-03
Estimated Expiration
2034-11-21

AI Technical Summary

Technical Problem

Existing general-purpose nut inspection devices require manual removal when non-conforming products are detected, resulting in high labor intensity for workers and difficulty in timely sorting and processing of non-conforming products.

Method used

A universal nut detection device was designed, comprising a housing, a conveyor belt, a hydraulic cylinder, an image detection mechanism, and a waste bin. The product is moved by the conveyor belt, the image detection mechanism automatically identifies missing nuts, and the hydraulic cylinder pushes the defective product into the waste bin, reducing manual intervention.

Benefits of technology

It enables automated sorting of defective products, reduces the labor intensity of staff, and improves testing efficiency and product quality consistency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a universal nut detection device, and specifically relates to the technical field of universal nut detection, the universal nut detection device comprises a housing, a controller, a conveyer belt and three universal products, the controller is fixedly installed at the front side of the housing, the conveyer belt is fixedly installed in the housing, the three universal products are all located at the top of the conveyer belt, and the controller is fixedly installed at the rear side of the housing. A second hydraulic cylinder is fixedly connected to the position, located on the rear side of the conveying belt, in the shell, and an image detection mechanism is fixedly connected to the front end of the second hydraulic cylinder. The conveying belt works to drive universal products to horizontally move, when the universal products move to the bottom of the image detection mechanism, the image detection mechanism detects the universal products, the first hydraulic cylinder works to drive the push plate to move forwards, and the push plate pushes the universal products without nuts to the limiting frame; and the waste box is used for collecting general products without nuts, unqualified products do not need to be manually taken down, and the labor intensity of workers is effectively reduced.
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Description

Technical Field

[0001] This utility model relates to the field of general nut testing technology, and more specifically, to a general nut testing device. Background Technology

[0002] The general-purpose anti-missing nut inspection fixture is a device specifically designed to detect whether the projected weld nuts on workpieces are missing or misplaced. Its aim is to improve production efficiency and product quality by ensuring that each production batch meets consistent quality standards through a series of inspection processes, thus reducing the rate of defective products leaving the factory. However, it is difficult to sort and process defective products in a timely and effective manner, leading to their accumulation.

[0003] A search revealed that Chinese patent CN210665007U discloses a welding nut detection device. This device includes a control box, a workbench, a movable device, a sensor, a counter, a power indicator, and an alarm. It has a simple structure, is easy to operate, and can quickly and accurately eliminate unqualified products, thereby improving detection efficiency and alerting operators that the product is unqualified.

[0004] When the above-mentioned detection device is in use, the sensor emits a light beam and transmits the detection result signal to the control system. When all the sensor sensors detect the presence of the object, the counter records the data. However, when a defective product is detected, the defective product needs to be removed manually, which results in a high labor intensity for the staff. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a universal nut detection device, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a universal nut detection device, comprising a housing, a controller, a conveyor belt, and three universal products. The controller is fixedly installed on the front side of the housing, the conveyor belt is fixedly installed inside the housing, and the three universal products are all located on top of the conveyor belt. A second hydraulic cylinder is fixedly connected inside the housing and to the rear side of the conveyor belt. An image detection mechanism is fixedly connected to the front end of the second hydraulic cylinder. A first hydraulic cylinder is fixedly connected inside the housing and to one side of the second hydraulic cylinder. A push plate is fixedly connected to the front side of the first hydraulic cylinder. A limit frame is fixedly connected inside the housing and to the front side of the conveyor belt, and a scrap box is movably arranged at the bottom of the limit frame.

[0007] Furthermore, a guide hopper is fixedly connected to one side of the housing, and the guide hopper is fixedly installed on the outside of the conveyor belt.

[0008] It can be seen that the above technical solution is designed to facilitate the guidance of general products that do not have missing nuts.

[0009] Furthermore, a support frame is movably provided at the bottom of the feed hopper, and a storage box is movably provided inside the support frame.

[0010] It can be seen that the above technical solutions are designed for the convenient storage of general-purpose products with no missing nuts.

[0011] Furthermore, the housing is movably connected to multiple movable doors via hinges, and omnidirectional wheels are fixedly connected to the bottom of the housing near the four corners.

[0012] As can be seen, in the above technical solution, the movable door is opened and the waste bin inside the shell is taken out, the shell is pushed and the four casters slide on the ground.

[0013] Furthermore, the feed hopper is provided with a guiding assembly, which includes two guide plates, four first connecting rods, four first connecting plates and multiple first fastening bolts.

[0014] Furthermore, one end of each of the four first connecting rods is fixedly connected to two guide plates, and one end of each of the four first connecting rods passes through the four first connecting plates. The plurality of first fastening bolts are threadedly connected to the four first connecting plates respectively.

[0015] It can be seen that the above technical solution is designed to facilitate the adjustment of the horizontal position of the guide plate.

[0016] Furthermore, each of the four first connecting plates is movably provided with a second connecting rod, each of the four second connecting rods is movably fitted with a second connecting plate, each of the four second connecting plates is threaded with a second fastening bolt, and one side of each of the four second connecting plates is fixedly connected to the conveyor belt.

[0017] It can be seen that the above technical solution is designed to facilitate the adjustment of the guide plate height.

[0018] The technical effects and advantages of this utility model are as follows:

[0019] 1. This utility model uses a conveyor belt to drive the general product to move horizontally. When the general product moves to the bottom of the image inspection mechanism, the image inspection mechanism inspects the general product. The first hydraulic cylinder works to drive the push plate to move forward. The push plate pushes the general product with missing nuts to the limit frame. The waste bin collects the general product with missing nuts. There is no need to manually remove the unqualified products, which effectively reduces the labor intensity of the staff.

[0020] 2. This utility model uses a second fastening bolt to fix the second connecting rod to the second connecting plate. Similarly, one of the first fastening bolts fixes the top of the second connecting rod to the first connecting plate, and the other first fastening bolt fixes the first connecting rod to the first connecting plate. This fixes the guide plate to the conveyor belt, and the position of the guide plate on the conveyor belt can be adjusted as needed to facilitate the guidance of different general products. The structure is simple and easy to use. Attached Figure Description

[0021] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a side view of the overall structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the assembly structure of the mounting box and the waste bin of this utility model;

[0025] Figure 4 This is a schematic diagram of the assembly structure of the mounting box and the first hydraulic cylinder of this utility model;

[0026] Figure 5 This is a schematic diagram of the guide component structure of this utility model.

[0027] In the diagram: 1. Housing; 2. Movable door; 3. Controller; 4. Conveyor belt; 5. Guide assembly; 6. Guide hopper; 7. General product; 8. Storage box; 9. Support frame; 10. Casters; 11. Scrap box; 12. Limit frame; 13. First hydraulic cylinder; 14. Push plate; 15. Second hydraulic cylinder; 16. Image detection mechanism; 501. Guide plate; 502. First connecting rod; 503. First connecting plate; 504. First fastening bolt; 505. Second connecting rod; 506. Second connecting plate; 507. Second fastening bolt. Detailed Implementation

[0028] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] Refer to the instruction manual appendix Figure 1-5 The universal nut detection device of this embodiment includes a housing 1, a controller 3, a conveyor belt 4, and three universal products 7. The controller 3 is fixedly installed on the front side of the housing 1, the conveyor belt 4 is fixedly installed inside the housing 1, and the three universal products 7 are all located on top of the conveyor belt 4. A second hydraulic cylinder 15 is fixedly connected inside the housing 1 and behind the conveyor belt 4. An image detection mechanism 16 is fixedly connected to the front end of the second hydraulic cylinder 15. A first hydraulic cylinder 13 is fixedly connected inside the housing 1 and to one side of the second hydraulic cylinder 15. A push plate 14 is fixedly connected to the front side of the first hydraulic cylinder 13. A limit frame 12 is fixedly connected inside the housing 1 and to the front side of the conveyor belt 4. A scrap box 11 is movably arranged at the bottom of the limit frame 12.

[0030] Furthermore, a guide hopper 6 is fixedly connected to one side of the housing 1, and the guide hopper 6 is fixedly installed on the outside of the conveyor belt 4. A support frame 9 is movably provided at the bottom of the guide hopper 6, and a storage box 8 is movably provided inside the support frame 9. Multiple movable doors 2 are movably connected to the housing 1 via hinges, and casters 10 are fixedly connected to the bottom of the housing 1 near the four corners.

[0031] Furthermore, the guide hopper 6 is provided with a guide assembly 5, which includes two guide plates 501, four first connecting rods 502, four first connecting plates 503, and multiple first fastening bolts 504. One end of each of the four first connecting rods 502 is fixedly connected to the two guide plates 501, and one end of each of the four first connecting rods 502 passes through the four first connecting plates 503. The multiple first fastening bolts 504 are threadedly connected to the four first connecting plates 503. Each of the four first connecting plates 503 is movably provided with a second connecting rod 505, and each of the four second connecting rods 505 is movably fitted with a second connecting plate 506. Each of the four second connecting plates 506 is threadedly connected with a second fastening bolt 507, and one side of each of the four second connecting plates 506 is fixedly connected to the conveyor belt 4.

[0032] The second connecting plate 506 is bolted to the outer shell of the conveyor belt 4. The top end of the second connecting rod 505 passes through the second connecting plate 506, and the distance between the top end of the second connecting rod 505 and the second connecting plate 506 is adjusted as needed. Finally, the second connecting rod 505 is fixed to the second connecting plate 506 by the second fastening bolt 507. Similarly, the top end of the second connecting rod 505 is fixed to the first connecting plate 503 by one of the first fastening bolts 504, and the first connecting rod 502 is fixed to the first connecting plate 503 by the other first fastening bolt 504. This fixes the guide plate 501 to the conveyor belt 4, and the position of the guide plate 501 on the conveyor belt 4 can be adjusted as needed to facilitate the guidance of different general-purpose products 7. The structure is simple and easy to use.

[0033] The usage method of this embodiment is as follows:

[0034] In use, the operator places the general-purpose product 7 on the conveyor belt 4. The controller 3 controls the operation of the conveyor belt 4, the first hydraulic cylinder 13, the second hydraulic cylinder 15, and the image detection mechanism 16. The operation of the conveyor belt 4 moves the general-purpose product 7 horizontally. When the general-purpose product 7 moves to the bottom of the image detection mechanism 16, the image detection mechanism 16 extracts the features of the nut, such as shape, size, and color, through image processing algorithms. These features are compared with standard nuts to identify missing or abnormal nuts. The extracted nut features are matched with preset standard nut features. If the match is successful, it is considered that a nut exists at that position; if the match fails, it is considered that a nut is missing at that position.

[0035] The general-purpose product 7 with no missing nuts enters the storage box 8 through the guide hopper 6. When the general-purpose product 7 with missing nuts moves to the front of the push plate 14, the first hydraulic cylinder 13 works to drive the push plate 14 forward. The push plate 14 pushes the general-purpose product 7 with missing nuts towards the limit frame 12. The scrap box 11 collects the general-purpose product 7 with missing nuts. There is no need to manually remove the unqualified products, which effectively reduces the labor intensity of the workers. Finally, the movable door 2 is opened and the scrap box 11 in the housing 1 is taken out. It is worth noting that the three general-purpose products 7 are three different models. In addition, this detection device is applicable to many general-purpose products 7 of different sizes. At the same time, the image detection mechanism 16 can be replaced with a laser marking mechanism to mark the general-purpose products 7.

[0036] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A universal nut detection device, comprising a shell (1), a controller (3), a conveying belt (4) and three universal products (7), and the controller (3) is fixedly installed on the front side of the shell (1), the conveying belt (4) is fixedly installed inside the shell (1), and the three universal products (7) are all located on the top of the conveying belt (4), characterized in that: The inside of the shell (1) and the rear side of the conveying belt (4) are fixedly connected with a second hydraulic cylinder (15), the front end of the second hydraulic cylinder (15) is fixedly connected with an image detection mechanism (16), the inside of the shell (1) and the side of the second hydraulic cylinder (15) are fixedly connected with a first hydraulic cylinder (13), the front side of the first hydraulic cylinder (13) is fixedly connected with a push plate (14), the inside of the shell (1) and the front side of the conveying belt (4) are fixedly connected with a limiting frame (12), and the bottom of the limiting frame (12) is movably provided with a waste box (11). ​ 2. The universal nut inspection apparatus of claim 1, wherein: One side of the shell (1) is fixedly connected with a guide hopper (6), and the guide hopper (6) is fixedly installed outside the conveying belt (4).

3. The universal nut detection device of claim 2, wherein: The bottom of the guide hopper (6) is movably provided with a support frame (9), and the inside of the support frame (9) is movably provided with a storage box (8).

4. The universal nut inspection apparatus of claim 1, wherein: A plurality of swing doors (2) are hingedly connected to the shell (1), and universal wheels (10) are fixedly connected to the bottom end of the shell (1) near the four corners.

5. The universal nut detection device of claim 2, wherein: The guide hopper (6) is provided with a guide assembly (5), and the guide assembly (5) comprises two guide plates (501), four first connecting rods (502), four first connecting plates (503) and a plurality of first fastening bolts (504).

6. The universal nut detection device of claim 5, wherein: One end of each of the four first connecting rods (502) is fixedly connected with the two guide plates (501), one end of each of the four first connecting rods (502) penetrates through the four first connecting plates (503), and the plurality of first fastening bolts (504) are threadedly connected with the four first connecting plates (503).

7. The universal nut detection device of claim 5, wherein: The four first connecting plates (503) are movably provided with a second connecting rod (505), the four second connecting rods (505) are movably sleeved with a second connecting plate (506), the four second connecting plates (506) are threadedly connected with a second fastening bolt (507), and one side of the four second connecting plates (506) is fixedly connected with the conveying belt (4).

Citation Information

Patent Citations

  • Welding nut detection device

    CN210665007U