An on-line reject device

Abstract

The utility model discloses an online defective product removing device relates to automatic production equipment technical field, including chain conveyer, detection device and removing mechanism, the chain conveyer includes a plurality of chain plate unit that links in turn, and the bearing surface of each chain plate unit is fixedly connected with the guide strip, and the discharge end and the bottom of chain conveyer are fixedly connected with the material guide plate, the detection device sets up the top of chain conveyer, is used for detecting the material on the chain plate unit, the removing mechanism sets up the inner side of chain conveyer discharge end, and the removing mechanism includes the driving cylinder for driving chain conveyer, the inner side rotation of driving cylinder is connected with the gas pipe, a plurality of gas holes are seted up to one side of gas pipe, and the position corresponding with driving cylinder and gas hole is seted up with the blow -off port. This online defective product removing device can realize the efficient removal of defective material, and the precision of removing operation is improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of automated production equipment technology, specifically to an online defective product rejection device. Background Technology

[0002] In industrial production lines, material quality inspection and defective product rejection are crucial steps in ensuring the pass rate of outgoing products. Traditional rejection methods often rely on manual sorting, which is inefficient and susceptible to fatigue and subjective factors, resulting in a high rate of misjudgment. This often leads to the wrong rejection of qualified products or the failure to detect defective products, making it difficult to guarantee the stability of sorting quality.

[0003] To improve the sorting efficiency and automation level of production lines and replace traditional manual sorting, the industry currently often adopts a structure that combines detection devices with mechanical or pneumatic rejection devices to achieve online rejection of defective products. Among them, mechanical baffle rejection uses cylinders to drive baffles and other structures to push defective products out of the production line, but the baffles will have direct physical contact with the materials, which can easily cause scratches and collision damage to the material surface. Although pneumatic jet rejection can avoid physical contact with the materials, the airflow generated during the jet process can easily create disturbances, causing adjacent qualified materials to shift positions or even fall off the conveyor path, thereby affecting the normal operation of subsequent processes and reducing the overall sorting accuracy.

[0004] Therefore, it is necessary to propose an online defect rejection device to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved The purpose of this invention is to provide an online defect rejection device to solve the problems mentioned in the background art.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: an online defective product rejection device, comprising: A chain conveyor, comprising multiple chain plate units that are hinged together in sequence, with a guide bar fixedly connected to the bearing surface of each chain plate unit, and a guide plate fixedly connected to the discharge end and the bottom end of the chain conveyor. A detection device is installed directly above the chain conveyor and is used to detect the material on the chain unit. The rejection mechanism is located inside the discharge end of the chain conveyor. The rejection mechanism includes an active cylinder for driving the chain conveyor. An air supply pipe is rotatably connected to the inner side of the active cylinder. Multiple air outlets are opened on one side of the air supply pipe. A blow nozzle is opened at the position corresponding to the air outlet on the active cylinder.

[0007] Preferably, the active cylinder is driven to rotate by a servo motor, and both ends of the active cylinder are fixedly connected to sprockets, which mesh with the conveyor chain of the chain conveyor.

[0008] Preferably, the active cylinder is rotatably connected to the frame via a bearing seat, the air supply pipe is rotatably connected to the active cylinder via a bearing, one end of the air supply pipe is connected to an air inlet pipe, and the air inlet pipe extends to the outside of the active cylinder.

[0009] Preferably, the outer side of the active cylinder is provided with a plurality of spray nozzles along its circumference, and the opening position of the spray nozzles corresponds to the gap between two adjacent chain plate units.

[0010] Preferably, the spacing between the guide plate and the chain plate unit is adapted to the height of the guide bar.

[0011] Preferably, the top end of the guide bar has an inclined surface along its direction of movement.

[0012] Preferably, both sides of the chain conveyor are fixedly connected with limit plates.

[0013] Preferably, a guide block is provided below the conveyor chain, and a guide wheel is provided on the inner side of the conveyor chain.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides an online defective product rejection device, which has the following beneficial effects: 1. This online defective product rejection device uses a chain conveyor to transport materials. When the material flow passes through the detection area of ​​the detection device, the device detects and judges the defects in the materials. Defective materials are rejected by the rejection mechanism, while qualified materials are directionally discharged through the guide plate at the discharge end of the chain conveyor. This combination improves the rejection efficiency of defective materials.

[0015] 2. Compared with mechanical rejection, this online defective product rejection device will not damage the workpiece. At the same time, by setting up upper and lower conveying channels and separating the materials by guide bars, it avoids airflow disturbance during air jet rejection from affecting the transmission of good products, thereby improving the accuracy of rejection. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the structure of this utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a side sectional view of the structure of this utility model; Figure 4 This is a cross-sectional schematic diagram of the rejection mechanism of this utility model; Figure 5This is a partial cross-sectional schematic diagram of the structure of this utility model.

[0017] In the diagram: 1. Rejection mechanism; 2. Detection device; 3. Chain conveyor; 4. Frame; 5. Servo motor; 6. Limiting side plate; 7. Guide bar; 8. Chain plate unit; 9. Conveyor chain; 10. Guide block; 11. Guide plate; 12. Air inlet pipe; 13. Bearing; 14. Air delivery pipe; 15. Air outlet; 16. Drive cylinder; 17. Spray nozzle; 18. Sprocket; 19. Bearing seat; 20. Guide sprocket. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figure 1-5 As shown, an online defective product rejection device includes a rejection mechanism 1, a detection device 2, and a chain conveyor 3. The chain conveyor 3 includes multiple chain plate units 8 that are hinged sequentially. Each chain plate unit 8 has a guide bar 7 fixedly connected to its bearing surface. The discharge end and bottom end of the chain conveyor 3 are both fixedly connected to guide plates 11. The detection device 2 is located directly above the chain conveyor 3 and is used to detect the material on the chain plate units 8. The rejection mechanism 1 is located inside the discharge end of the chain conveyor 3. The rejection mechanism 1 includes an active cylinder 16 for driving the chain conveyor 3. An air supply pipe 14 is rotatably connected to the inner side of the active cylinder 16. Multiple air outlets 15 are opened on one side of the air supply pipe 14. A blow nozzle 17 is opened at a position corresponding to the air outlet 15 on the active cylinder 16. Multiple blow nozzles 17 are opened on the outer side of the active cylinder 16 along its circumference. The opening position of the blow nozzle 17 corresponds to the gap between two adjacent chain plate units 8. Specifically, the air supply pipe 14 is connected to a compressed air source, and its inlet end is equipped with a solenoid valve. The outlet port 15 is offset from the guide plate 11, and its angle is fixed. A gap is provided between two adjacent guide bars 7 so that the compressed gas can remove the workpiece from the chain plate unit 8. Depending on the item to be inspected, a matching inspection device 2 is configured; for example, an X-ray inspection device is used to inspect the internal defects of the material, or a visual inspection device is used to inspect the external dimensions and surface defects of the material.

[0020] During use, the material to be inspected is placed on the bearing surface of the chain plate unit 8 of the chain plate conveyor 3. The guide bars 7 on each chain plate unit 8 limit and separate the material to prevent it from shifting during the conveying process. When the material to be inspected passes through the inspection area of ​​the inspection device 2 with the chain plate conveyor 3, the inspection device 2 inspects the material and determines whether there are any defects. If the inspection determines that the material is defective, a delay time is matched according to the preset conveying speed of the chain plate conveyor 3. When the defective material is conveyed to the rejection area corresponding to the rejection mechanism 1 with the chain plate conveyor 3, the solenoid valve is opened and the compressed gas forms a directional blowing airflow through the air outlet 15 and the blow nozzle 17 in sequence, which removes the defective material from the bearing surface of the chain plate unit 8. When the qualified product passes through the rejection area, the solenoid valve is closed. The qualified product moves with the chain plate conveyor 3 and falls onto the guide plate 11, and is then pushed by the guide bars 7, thereby realizing the separation of defective and qualified materials. Among them, the guide plate 11 is made of 304 stainless steel in one piece, and its surface is smooth and flat, which avoids wear on the material during the conveying process and thus ensures the surface quality of the material.

[0021] Specifically, the drive cylinder 16 is driven to rotate by the servo motor 5. Both ends of the drive cylinder 16 are fixedly connected to sprockets 18, which mesh with the conveyor chain 9 of the chain conveyor 3. The drive cylinder 16 is rotatably connected to the frame 4 via bearing seats 19. The air supply pipe 14 is rotatably connected to the drive cylinder 16 via bearings 13. One end of the air supply pipe 14 is connected to an air inlet pipe 12, which extends to the outside of the drive cylinder 16. Preferably, a reducer is provided between the servo motor 5 and the drive cylinder 16. The reducer adjusts the output speed of the servo motor 5, thereby reducing the conveying speed of the chain conveyor 3, allowing sufficient time for the rejection operation of defective workpieces, and ensuring the reliability and accuracy of the rejection action.

[0022] To ensure the guide bar 7 can effectively push the material, the distance between the guide plate 11 and the chain plate unit 8 is adapted to the height of the guide bar 7. Specifically, the top of the guide bar 7 has an inclined surface along its direction of movement. By setting the inclined surface, the material can be guided into the space between the two guide bars 7.

[0023] To prevent materials from slipping off both sides of the chain conveyor 3, limit plates 6 are fixedly connected to both sides of the chain conveyor 3 to ensure the stability of multi-column material transmission.

[0024] To prevent the conveyor chain 9 from deviating, a guide block 10 is provided below the conveyor chain 9, and a guide wheel 20 is provided on the inner side of the conveyor chain 9. By setting the guide block 10 and the guide wheel 20 to support and constrain the conveyor chain 9, it can be effectively prevented from running off course, shaking or falling off.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An online defective product rejection device, characterized in that, include: Chain conveyor (3), the chain conveyor (3) includes a plurality of chain plate units (8) that are hinged in sequence, each of the chain plate units (8) has a guide bar (7) fixedly connected on its bearing surface, and the chain conveyor (3) has a guide plate (11) fixedly connected to its discharge end and bottom end. The detection device (2) is located directly above the chain conveyor (3) and is used to detect the material on the chain unit (8). The rejection mechanism (1) is located on the inner side of the discharge end of the chain conveyor (3). The rejection mechanism (1) includes an active cylinder (16) for driving the chain conveyor (3). An air supply pipe (14) is rotatably connected to the inner side of the active cylinder (16). A plurality of air outlets (15) are opened on one side of the air supply pipe (14). A blow nozzle (17) is opened at the position corresponding to the air outlet (15) of the active cylinder (16).

2. The online defective product rejection device according to claim 1, characterized in that: The active cylinder (16) is driven to rotate by a servo motor (5). Both ends of the active cylinder (16) are fixedly connected to sprockets (18), which mesh with the conveyor chain (9) of the chain conveyor (3).

3. The online defective product rejection device according to claim 1, characterized in that: The active cylinder (16) is rotatably connected to the frame (4) via a bearing seat (19), and the air supply pipe (14) is rotatably connected to the active cylinder (16) via a bearing (13). One end of the air supply pipe (14) is connected to an air inlet pipe (12), which extends to the outside of the active cylinder (16).

4. The online defective product rejection device according to claim 1, characterized in that: The outer side of the active cylinder (16) is provided with a plurality of spray nozzles (17) along its circumference, and the opening position of the spray nozzles (17) corresponds to the gap between two adjacent chain plate units (8).

5. The online defective product rejection device according to claim 1, characterized in that: The distance between the guide plate (11) and the chain plate unit (8) is adapted to the height of the guide bar (7).

6. The online defective product rejection device according to claim 1, characterized in that: The top of the guide bar (7) has an inclined surface along its moving direction.

7. The online defective product rejection device according to claim 1, characterized in that: Limiting side plates (6) are fixedly connected to both sides of the chain conveyor (3).

8. The online defective product rejection device according to claim 2, characterized in that: A guide block (10) is provided below the conveyor chain (9), and a guide wheel (20) is provided on the inner side of the conveyor chain (9).

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