Sorting device for plastic gears

By using a motor-driven gear and rack to clamp materials and utilizing an electromagnetic slide rail sorting device, the problem of material adhesion is solved, and the efficiency and accuracy of plastic gear detection and sorting are improved.

CN223832913UActive Publication Date: 2026-01-27NINGBO FENGHUA RUIHUI AUTOMOBILE PLASTIC PARTS CO LTD
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Patent Information

Application Number
CN202520148750.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-22
Publication Date
2026-01-27
Estimated Expiration
2035-01-22

AI Technical Summary

Technical Problem

In existing plastic gear detection and sorting devices, materials tend to adhere to the bottom of the air tube nozzle, making it impossible to adsorb the next material and affecting the detection and sorting efficiency.

Method used

A second motor drives the gear to rotate, which in turn moves the rack and toothed block closer to clamp the material. The electromagnetic slide rail, in conjunction with the electromagnetic slider, moves the defective material to the defective product conveyor belt. The gear rotates in the opposite direction to disengage from the material and prevent the material from moving with the toothed block.

Benefits of technology

It achieves effective clamping and sorting of materials, prevents material adhesion from affecting detection, improves detection and sorting efficiency, and ensures the accuracy of subsequent material detection and sorting results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a plastic gear sorting device which comprises a bottom plate, a material conveying belt used for conveying materials and a first detector used for detecting the bottom faces of the materials are arranged at the top of the bottom plate, a frame is arranged at the top of the bottom plate, an installation frame is movably arranged in the frame, and a threaded block is movably arranged in the installation frame. An electric push rod is arranged at the bottom of a threaded block, a second motor is started to drive a gear to rotate, the two racks are further driven to get close to each other, meanwhile, connecting blocks and tooth blocks at the bottoms of the racks can get close to each other at the same time, and materials are clamped through the two tooth blocks; and then an electromagnetic sliding rail is matched with an electromagnetic sliding block to work to move unqualified materials to a defective product conveying belt, when the materials need to be sorted and conveyed, only a second motor needs to rotate reversely, a gear can be disengaged from the materials, and it is prevented that the materials move along with a gear block, and subsequent material detection and sorting are affected.
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Description

Technical Field

[0001] This utility model relates to the technical field of plastic gear processing equipment, specifically to a plastic gear sorting device. Background Technology

[0002] Plastic gears are gears made of plastic materials, primarily used for power transmission. Their applications in mechanical transmission are becoming increasingly widespread, spanning aerospace, automotive, toys, office supplies, and home appliances. The trend of replacing steel with plastic has become irresistible. However, during the injection molding process, plastic gears often encounter problems such as impurities, air bubbles, and poor shrinkage. These issues severely affect the transmission accuracy, efficiency, and service life of plastic gears.

[0003] Chinese Patent (Grant No. CN218956437U) discloses an automatic detection and sorting device for plastic gears, including a base, a moving component, a lifting component, a suction nozzle component, a vision component, and a streamlined component. The moving component is mounted on the base; the lifting component is mounted on the moving component, and a mounting base is fixedly mounted on the end face of the extended end of the hydraulic cylinder; the suction nozzle component is mounted on the mounting base and includes a suction nozzle head and a suction nozzle seat, with an air tube suction nozzle also provided on the suction nozzle head; the suction nozzle seat is fixedly mounted on the mounting base, and the suction nozzle head is mounted on the suction nozzle seat; the streamlined component is located on the side of the base where the moving component is located; the vision component includes an upper vision mechanism and a lower vision mechanism, with the upper vision mechanism located on the suction nozzle head and the upper vision component fixedly positioned in a second opening; the lower vision component is located on one side of the streamlined component. This application achieves convenient detection of both sides of the plastic gears while also performing sorting.

[0004] The aforementioned device picks up the material through the tracheal suction nozzle, then uses a lower vision mechanism to inspect the bottom surface of the material. After that, a moving component places the inspected material onto different streamline components for sorting. However, because the material is picked up through the tracheal suction nozzle, it tends to stick to the bottom of the nozzle and is difficult to fall off. As a result, when inspecting the next material, the material is still stuck to the bottom of the nozzle, making it impossible to pick up the next material. Utility Model Content

[0005] To address the aforementioned issues, a plastic gear sorting device is provided. A second motor drives the gears to rotate, which in turn moves two racks closer together. Simultaneously, the connecting block and toothed blocks at the bottom of the racks also move closer, using the two toothed blocks to clamp the material. Then, an electromagnetic slide rail, in conjunction with an electromagnetic slider, moves the substandard material onto a defective conveyor belt. When material needs to be sorted and transported, the second motor simply rotates in the opposite direction, causing the gears to disengage from the material, preventing the material from following the toothed blocks and affecting subsequent material detection and sorting.

[0006] To address the problems of existing technologies, this utility model provides a sorting device for plastic gears, including a base plate. A material conveyor belt for transporting materials and a first detector for detecting the bottom surface of the materials are provided on the top of the base plate. A frame is provided on the top of the base plate, and a mounting frame is movably arranged inside the frame. A threaded block is movably arranged inside the mounting frame. An electric push rod is provided at the bottom of the threaded block. An adjustment frame is provided at the telescopic end of the electric push rod. A second detector for detecting the top surface of the materials is provided at the bottom of the adjustment frame. A clamping assembly for clamping the materials is also provided inside the adjustment frame.

[0007] Preferably, the clamping assembly includes a guide rod disposed inside the adjustment frame, symmetrical connecting blocks are movably disposed outside the guide rod, the bottom of both connecting blocks extends to the outside of the adjustment frame and is provided with toothed blocks for clamping materials, the top of both connecting blocks is provided with racks, a second motor is disposed inside the adjustment frame, and the output shaft of the second motor is provided with gears that mesh with the racks.

[0008] Preferably, the sidewalls of both racks are provided with limit blocks, and the inner wall of the adjusting frame is provided with a limit groove for the limit blocks to move.

[0009] Preferably, finished product conveyor belts and defective product conveyor belts are respectively provided on both sides of the material conveyor belt, and guide blocks for guiding materials are provided inside the material conveyor belt, and stop blocks for limiting the movement of materials are also provided inside the material conveyor belt.

[0010] Preferably, the frame is provided with an electromagnetic slide rail inside, and the top of the mounting frame is provided with an electromagnetic slider that slides in cooperation with the electromagnetic slide rail.

[0011] Preferably, a first motor is provided on the side wall of the mounting frame, and a screw is provided on the output shaft of the first motor through a coupling. One end of the screw is rotatably connected to the inner wall of the mounting frame through a bearing, and a threaded block is connected to the external thread of the screw.

[0012] The advantages of this utility model compared to the prior art are:

[0013] 1. The second motor starts and drives the gear to rotate, which in turn drives the two racks to move closer together. At the same time, the connecting block and the toothed block at the bottom of the rack also move closer together. The two toothed blocks clamp the material. Then, the electromagnetic slide rail works with the electromagnetic slider to move the unqualified material to the defective product conveyor belt. When the material needs to be sorted and transported, the second motor simply rotates in the opposite direction, and the gear will disengage from the material to prevent the material from moving with the toothed block and affecting the subsequent material detection and sorting.

[0014] 2. The screw and threaded block work together to move the material above the first detector, thereby detecting the bottom surface of the material. Material that fails the test will be moved to the defective product conveyor belt, while material that passes the test will be moved to the finished product conveyor belt. The first and second detectors can be used to detect the material and then sort it correctly. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a plastic gear sorting device.

[0016] Figure 2 This is a schematic diagram of the structure of the second detector in a plastic gear sorting device.

[0017] Figure 3 This is a schematic diagram of the electromagnetic slide rail in a plastic gear sorting device.

[0018] Figure 4 This is a schematic diagram of the electromagnetic slider in a plastic gear sorting device.

[0019] Figure 5 This is a schematic diagram of the internal structure of the mounting frame in a sorting device for plastic gears.

[0020] Figure 6 This is a schematic diagram of the structure of the first detector in a plastic gear sorting device.

[0021] Figure 7 This is a schematic diagram of the internal structure of the adjusting frame in a plastic gear sorting device.

[0022] The following are the labels in the diagram: 1. Base plate; 2. Frame; 3. Finished product conveyor belt; 4. Defective product conveyor belt; 5. Material conveyor belt; 6. First detector; 7. Stop block; 8. Guide block; 9. Mounting frame; 10. Electromagnetic slide rail; 11. Adjustment frame; 12. Electric push rod; 13. Electromagnetic slider; 14. First motor; 15. Connecting block; 16. Gear block; 17. Threaded block; 18. Screw; 19. Second detector; 20. Second motor; 21. Gear; 22. Rack; 23. Guide rod; 24. Limit block. Detailed Implementation

[0023] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0024] like Figures 1 to 7 As shown, this utility model provides:

[0025] A sorting device for plastic gears includes a base plate 1. A material conveyor belt 5 for transporting materials and a first detector 6 for detecting the bottom surface of the materials are provided on the top of the base plate 1. A frame 2 is provided on the top of the base plate 1. A mounting frame 9 is movably arranged inside the frame 2. A threaded block 17 is movably arranged inside the mounting frame 9. An electric push rod 12 is provided at the bottom of the threaded block 17. An adjustment frame 11 is provided at the telescopic end of the electric push rod 12. A second detector 19 for detecting the top surface of the materials is provided at the bottom of the adjustment frame 11. A clamping assembly for clamping the materials is also provided inside the adjustment frame 11.

[0026] The top surface of the material can be detected by the second detector 19. Then, the material can be clamped and moved by the clamping assembly. When the material moves to the designated area, the bottom surface of the material is detected by the first detector 6 to prevent any missed positions from being detected. Finally, the material is sorted onto different conveyor belts based on the detection results.

[0027] like Figure 7 As shown, the clamping assembly includes a guide rod 23 disposed inside the adjusting frame 11. Symmetrical connecting blocks 15 are movably disposed outside the guide rod 23. The bottom of both connecting blocks 15 extends to the outside of the adjusting frame 11 and is provided with toothed blocks 16 for clamping materials. The top of both connecting blocks 15 is provided with racks 22. A second motor 20 is disposed inside the adjusting frame 11. The output shaft of the second motor 20 is provided with a gear 21 that meshes with the racks 22.

[0028] The second motor 20 starts and drives the gear 21 to rotate, which in turn drives the two racks 22 to move closer to each other. At the same time, the connecting block 15 and the tooth block 16 at the bottom of the rack 22 also move closer. The two tooth blocks 16 clamp the material. Then, the electromagnetic slide rail 10 works in conjunction with the electromagnetic slider 13 to move the unqualified material to the defective conveyor belt 4. When the material needs to be sorted and transported, the second motor 20 simply rotates in the opposite direction, and the gear 21 will disengage from the material to prevent the material from moving with the tooth block 16 and affecting the subsequent material detection and sorting.

[0029] like Figure 7 As shown, the side walls of both racks 22 are provided with limit blocks 24, and the inner wall of the adjusting frame 11 is provided with a limit groove for the limit blocks 24 to move.

[0030] The limiting groove ensures that the limiting block 24 will not shift its position when moving, and also prevents the gear 21 and rack 22 from losing their teeth.

[0031] like Figure 2As shown, finished product conveyor belt 3 and defective product conveyor belt 4 are respectively provided on both sides of the material conveyor belt 5. The material conveyor belt 5 is provided with guide block 8 for guiding materials, and the material conveyor belt 5 is also provided with stop block 7 for limiting the material.

[0032] The finished product conveyor belt 3 and the defective product conveyor belt 4 can be used to sort and transport different materials. During transportation, the materials will move to the designated area under the guidance of the guide block 8 and the stop block 7, which facilitates the inspection of the top surface of the materials and allows for quick clamping of the materials.

[0033] like Figure 2 and Figure 4 As shown, the interior of the frame 2 is provided with an electromagnetic slide rail 10, and the top of the mounting frame 9 is provided with an electromagnetic slider 13 that slides in cooperation with the electromagnetic slide rail 10.

[0034] The electromagnetic slide rail 10 works in conjunction with the electromagnetic slider 13 to facilitate the movement of the tested materials onto the finished product conveyor belt 3 and the defective product conveyor belt 4, thereby improving the efficiency of material sorting.

[0035] like Figure 5 As shown, a first motor 14 is provided on the side wall of the mounting frame 9. The output shaft of the first motor 14 is provided with a screw 18 through a coupling. One end of the screw 18 is rotatably connected to the inner wall of the mounting frame 9 through a bearing. A threaded block 17 is connected to the external thread of the screw 18.

[0036] The first motor 14 drives the screw 18 to rotate, which in turn drives the threaded block 17 to move, facilitating the movement of the clamping assembly at the bottom of the threaded block 17. At the same time, it can also quickly detect the top and bottom surfaces of the material, facilitating the next step of sorting.

[0037] When materials need to be inspected and sorted, they are first placed on the material conveyor belt 5. During transport, the materials move to the designated area under the guidance of the guide block 8 and the stop block 7. At this time, the top surface of the materials is inspected by the second detector 19 at the bottom of the mounting frame 9. When the top surface of the materials fails the inspection, the second motor 20 starts and drives the gear 21 to rotate, which in turn drives the two racks 22 to move closer to each other. At the same time, the connecting block 15 and the tooth block 16 at the bottom of the rack 22 also move closer. The two tooth blocks 16 clamp the materials. Then, the electromagnetic slide rail 10 works in conjunction with the electromagnetic slider 13 to move the unqualified materials to the defective product transport area. When materials need to be sorted and transported on conveyor belt 4, the second motor 20 simply rotates in the opposite direction, and the gear 21 disengages from the material to prevent the material from moving with the toothed block 16 and affecting the subsequent material detection and sorting. When the top surface of the material passes the inspection, the screw 18 works in conjunction with the threaded block 17 to move the material above the first detector 6, thereby inspecting the bottom surface of the material. Materials that fail the inspection will be moved to the defective conveyor belt 4, while materials that pass the inspection will be moved to the finished product conveyor belt 3. The first detector 6 and the second detector 19 can be used to inspect the materials, and then they can be sorted correctly.

[0038] The above embodiments merely illustrate a sorting device for plastic gears or several implementation methods of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

[0039] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A sorting device for plastic gears, characterized in that, The system includes a base plate (1), on the top of which is provided a material conveyor belt (5) for transporting materials and a first detector (6) for detecting the bottom surface of the materials. A frame (2) is provided on the top of the base plate (1), and a mounting frame (9) is movably provided inside the frame (2). A threaded block (17) is movably provided inside the mounting frame (9). An electric push rod (12) is provided at the bottom of the threaded block (17). An adjustment frame (11) is provided at the telescopic end of the electric push rod (12). A second detector (19) for detecting the top surface of the materials is provided at the bottom of the adjustment frame (11). A clamping assembly for clamping the materials is also provided inside the adjustment frame (11).

2. The plastic gear sorting device according to claim 1, characterized in that, The clamping assembly includes a guide rod (23) disposed inside the adjustment frame (11). Symmetrical connecting blocks (15) are movably disposed outside the guide rod (23). The bottom of both connecting blocks (15) extends to the outside of the adjustment frame (11) and is provided with toothed blocks (16) for clamping materials. The top of both connecting blocks (15) is provided with racks (22). A second motor (20) is disposed inside the adjustment frame (11). The output shaft of the second motor (20) is provided with a gear (21) that meshes with the rack (22).

3. The plastic gear sorting device according to claim 2, characterized in that, Both racks (22) are provided with limit blocks (24) on their side walls, and the inner wall of the adjusting frame (11) is provided with a limit groove for the limit blocks (24) to move.

4. The plastic gear sorting device according to claim 1, characterized in that, The material conveyor belt (5) is provided with a finished product conveyor belt (3) and a defective product conveyor belt (4) on both sides respectively. The material conveyor belt (5) is provided with a guide block (8) for guiding the material. The material conveyor belt (5) is also provided with a stop block (7) for limiting the material.

5. The plastic gear sorting device according to claim 1, characterized in that, The frame (2) is provided with an electromagnetic slide rail (10) inside, and the top of the mounting frame (9) is provided with an electromagnetic slider (13) that slides in cooperation with the electromagnetic slide rail (10).

6. The plastic gear sorting device according to claim 1, characterized in that, The side wall of the mounting frame (9) is provided with a first motor (14), and the output shaft of the first motor (14) is provided with a screw (18) through a coupling. One end of the screw (18) is rotatably connected to the inner wall of the mounting frame (9) through a bearing, and the external thread of the screw (18) is connected with a threaded block (17).