Light object defective product removing device and removing system

Abstract

The utility model discloses a light object defective product rejecting device and rejecting system, and particularly relates to the technical field of defective product rejecting equipment, the light object defective product rejecting device comprises a jacking blowing assembly and a rejecting assembly, the jacking blowing assembly and the rejecting assembly are both used for being fixedly connected with a conveying device for conveying light objects, the jacking blowing assembly comprises a jacking piece and a blowing piece, the jacking piece is used for jacking the light object defective products from the conveying device, the blowing piece is used for blowing the jacked light object defective products, and the removing assembly is used for removing the blown light object defective products from the position above the conveying device. The light object rejecting device is simple in structure and convenient to operate, can accurately reject defective light objects, improves the rejecting efficiency, and ensures smooth operation of a high-speed production line.

Description

Technical Field

[0001] This utility model relates to the technical field of defective product rejection equipment, and in particular to a defective product rejection device and system for lightweight objects. Background Technology

[0002] With the continuous improvement of production line automation, especially in high-speed production lines, accurately removing defective products has become a significant technical challenge. Traditional removal methods often use cylinders for direct removal. While this method can handle most defective products, it is not effective for removing lightweight items such as soft, thin, and lightweight plastic bags. Due to insufficient suction, pressure, or other removal power of the device, mis-removal or incomplete removal can easily occur, resulting in some unqualified or removable plastic bags not being completely removed from the production line and mixing with qualified products, thus affecting the product pass rate. Utility Model Content

[0003] The purpose of this invention is to provide a lightweight defective product rejection device and system to solve the problems existing in the prior art. It has a simple structure, is easy to operate, can accurately reject lightweight defective products, improve rejection efficiency, and ensure the smooth operation of high-speed production lines.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] This utility model provides a device for rejecting defective lightweight objects, including a lifting and blowing assembly and a rejection assembly. Both the lifting and blowing assembly and the rejection assembly are fixedly connected to a conveying device for conveying lightweight objects. The lifting and blowing assembly includes a lifting member and a blowing member. The lifting member is used to lift the defective lightweight object from the conveying device, the blowing member is used to blow up the lifted defective lightweight object, and the rejection assembly is used to remove the blown defective lightweight object from above the conveying device.

[0006] Preferably, the lifting component includes a lifting cylinder and a lifting rod, the output end of the lifting cylinder is fixedly connected to the lifting rod, and the lifting rod is used to lift lightweight defective objects from the conveying device.

[0007] Preferably, the lifting member further includes an arched plate, which is fixedly connected to the top end of the lifting rod.

[0008] Preferably, the size of the arched plate is not larger than the size of the lightweight object.

[0009] Preferably, the air blowing component includes an air blowing head and an air source communicating with the air blowing head, and the air blowing head is fixedly connected to the lifting cylinder.

[0010] Preferably, the rejection assembly includes a telescopic cylinder and a pressure plate, the pressure plate being fixedly connected to the output end of the telescopic cylinder, and the pressure plate being used to restrict the upward movement of lightweight defective objects.

[0011] Preferably, the rejection assembly further includes a scraping brush, which is fixedly connected to one end of the pressure plate near the telescopic cylinder, and the bristles of the scraping brush protrude downwards from the bottom surface of the pressure plate.

[0012] Preferably, it also includes a receiving hopper, which is fixedly connected to the conveying device and is used to collect lightweight defective products.

[0013] This utility model also provides a lightweight object defective product rejection system, including a controller, a conveying device, a detection device, and the lightweight object defective product rejection device. The detection device is used to detect the mass of the lightweight object, the conveying device is used to continuously convey the lightweight object, and the conveying device, the detection device, and the lightweight object defective product rejection device are all signal connected to the controller.

[0014] Preferably, the conveying device includes a support and a conveyor belt, the lifting air assembly and the rejection assembly are both connected to the support, the conveyor belt is evenly provided with a plurality of through holes, and the output end of the lifting air assembly can extend out from the through holes to lift lightweight defective products.

[0015] The present invention achieves the following technical advantages over the prior art:

[0016] This invention provides a lightweight defective item rejection device and system. A lifting component lifts the lightweight defective item from the conveyor, effectively overcoming the adhesion and inertia between the lightweight item and the conveyor belt, facilitating separation of the lightweight item from the conveyor belt, reducing rejection difficulty, and enabling precise rejection of lightweight items such as ultra-thin bags. While the lifting component lifts the lightweight defective item, an air blowing component blows air from above the conveyor, preventing it from falling back onto the conveyor belt under gravity. This also facilitates the removal of the blown-up lightweight defective item from above the conveyor, ensuring effective rejection of ultra-thin bags. It avoids the errors and operational difficulties of traditional methods, can operate stably in high-speed production lines without affecting the overall operating speed of the production line, and ensures smooth operation of the production line. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.

[0018] Figure 1 A schematic diagram of a device for rejecting defective lightweight objects;

[0019] Figure 2 A front view of a device for rejecting defective lightweight objects;

[0020] Figure 3 Side view of a device for rejecting defective lightweight objects;

[0021] Figure 4 Top view of the device for rejecting defective lightweight objects;

[0022] Figure 5 A schematic diagram of the lifting and blowing assembly of a device for rejecting defective lightweight objects.

[0023] Figure 6 A front view of the lifting and blowing assembly of the device for rejecting defective lightweight objects;

[0024] Figure 7 Side view of the lifting air assembly of the lightweight defective object rejection device;

[0025] Figure 8 A top view of the lifting and blowing assembly of a device for rejecting defective lightweight objects.

[0026] In the diagram: 1-lifting component; 11-lifting cylinder; 12-lifting rod; 13-arched plate; 2-air blowing head; 3-telescopic cylinder; 4-pressure plate; 5-scraper brush; 6-collecting hopper; 7-conveying device; 71-through hole. Detailed Implementation

[0027] 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.

[0028] The purpose of this invention is to provide a lightweight defective product rejection device and system to solve the problems existing in the prior art. It has a large structural component, is easy to operate, can accurately reject lightweight defective products, improve rejection efficiency, and ensure the smooth operation of high-speed production lines.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Example 1

[0031] This embodiment provides a device for rejecting defective lightweight objects, such as... Figure 1-4 As shown, it includes a lifting and blowing assembly and a rejection assembly. Both the lifting and blowing assembly and the rejection assembly are used to be fixedly connected to the conveying device 7 for conveying lightweight objects. The lifting and blowing assembly includes a lifting member 1 and a blowing member. The lifting member 1 is used to lift the lightweight defective object from the conveying device 7, and the blowing member is used to blow up the lifted lightweight defective object. The rejection assembly is used to remove the blown lightweight defective object from above the conveying device 7. The lifting component 1 lifts lightweight defective items from the conveyor device 7, effectively overcoming the adhesion and inertia between the lightweight items and the conveyor belt. This facilitates the separation of lightweight items from the conveyor belt, reduces the difficulty of rejection, and enables precise rejection of lightweight items such as ultra-thin bags. While the lifting component is lifting the lightweight defective item, the air blowing component blows air from above the conveyor device 7, preventing it from falling back onto the conveyor belt under gravity. This also facilitates the removal component from above the conveyor device 7, ensuring effective rejection of ultra-thin bags. This avoids the errors and operational difficulties of traditional methods, allowing for stable operation in high-speed production lines without affecting the overall production line speed and ensuring smooth operation. Compared to traditional complex rejection systems, this device has a simple structure, low cost, and is suitable for most manufacturing enterprises. Its simple structure and easy installation allow for rapid application on existing production lines, reducing equipment modification and debugging time.

[0032] In the implementation of this embodiment, it is further preferred that, as follows: Figure 5-8 As shown, the lifting component 1 includes a lifting cylinder 11 and a lifting rod 12. The output end of the lifting cylinder 11 is fixedly connected to the lifting rod 12. The lifting rod 12 is used to lift lightweight defective objects from the conveying device 7.

[0033] In a further preferred embodiment of this invention, the lifting member 1 further includes an arched plate 13, which is fixedly connected to the top end of the lifting rod 12. The size of the arched plate 13 is no larger than the size of the lightweight object. A lightweight arched plate 13 is installed on the top of the lifting rod 12. The arched curve of the arched plate 13 has low damage to the lightweight object, and the size of the arched plate 13 is just enough to lift a single defective lightweight object, preventing it from being too large and lifting subsequent lightweight objects.

[0034] In a further preferred embodiment of this invention, the air blowing component includes an air blowing head 2 and an air source connected to the air blowing head 2, with the air blowing head 2 fixedly connected to the lifting cylinder 11. The air blowing mechanism generates strong pneumatic force by ejecting airflow, allowing bags detached from the conveyor belt to remain suspended in the air, facilitating the subsequent rejection assembly to accurately remove lightweight defective items from above the conveyor belt without affecting other normally conveyed objects.

[0035] In a further preferred embodiment of this invention, the rejection assembly includes a telescopic cylinder 3 and a pressure plate 4. The pressure plate 4 is fixedly connected to the output end of the telescopic cylinder 3 and is located above the lifting member 1, used to restrict the upward movement of lightweight defective objects. The pressure plate 4 can prevent lightweight defective objects from being blown too high by the air blowing member, making it impossible to collect them.

[0036] In a further preferred embodiment of this invention, the rejection assembly further includes a scraping brush 5, which is fixedly connected to the end of the pressure plate 4 near the telescopic cylinder 3. The bristles of the scraping brush 5 protrude downwards from the bottom surface of the pressure plate 4. Ultra-thin bags may experience positional shifts on the conveyor belt due to airflow, deviating from the normal conveying path. This can affect the accurate operation of the rejection device. When a bag shifts, the scraping brush 5 can contact the bag and apply a lateral force through friction, causing the bag to return to the normal conveying path, facilitating subsequent collection of lightweight objects.

[0037] In a further preferred embodiment of this invention, a receiving hopper 6 is included, which is fixedly connected to the conveying device 7 and is used to collect lightweight defective products.

[0038] Example 2

[0039] This embodiment provides a lightweight defective product rejection system, including a controller, a conveying device 7, a detection device, and the lightweight defective product rejection device of Embodiment 1. The detection device is used to detect the mass of the lightweight object, and the conveying device 7 is used to continuously convey the lightweight object. The conveying device 7, the detection device, and the lightweight defective product rejection device are all signal-connected to the controller. When an item enters the detection area of ​​the detection device, the detection device (such as a sensor, photoelectric sensor, etc.) detects the mass of the lightweight object. If the detection is qualified, the conveying device 7 continues to carry the lightweight object to the next stage normally without intervention. If the detection is unqualified, the controller activates the lifting cylinder 11, which instantly rises and retracts, lifting the lightweight defective product into the air, ready for rejection. Then, the controller controls the air blowing component to blow airflow, blowing the lifted item away from the conveyor belt, ensuring the rejection of the lightweight defective product. Finally, the lightweight defective product is pushed to the receiving hopper 6 by the airflow and the scraper brush 5, completing the rejection action.

[0040] In a further preferred embodiment of this invention, the conveying device 7 includes a support and a conveyor belt. The lifting air assembly and the rejection assembly are both connected to the support. The conveyor belt has a plurality of through holes 71 evenly distributed. Lightweight objects are placed above the through holes. When the detection device detects that the lightweight object is unqualified, the controller controls the output end of the lifting air assembly to extend out from the through hole 71 to lift the defective lightweight object.

[0041] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A device for rejecting defective lightweight objects, characterized in that: The device includes a lifting and blowing assembly and a rejection assembly. Both the lifting and blowing assembly and the rejection assembly are fixedly connected to a conveying device for conveying lightweight objects. The lifting and blowing assembly includes a lifting member and a blowing member. The lifting member is used to lift the lightweight defective object from the conveying device, the blowing member is used to blow up the lifted lightweight defective object, and the rejection assembly is used to remove the blown lightweight defective object from above the conveying device.

2. The lightweight defective product rejection device according to claim 1, characterized in that: The lifting component includes a lifting cylinder and a lifting rod. The output end of the lifting cylinder is fixedly connected to the lifting rod, which is used to lift lightweight defective objects from the conveying device.

3. The lightweight defective product rejection device according to claim 2, characterized in that: The lifting component also includes an arched plate, which is fixedly connected to the top end of the lifting rod.

4. The lightweight defective product rejection device according to claim 3, characterized in that: The size of the arched plate is not greater than the size of the lightweight object.

5. The lightweight defective product rejection device according to claim 2, characterized in that: The air blowing component includes an air blowing head and an air source connected to the air blowing head, and the air blowing head is fixedly connected to the lifting cylinder.

6. The lightweight defective product rejection device according to claim 1, characterized in that: The rejection assembly includes a telescopic cylinder and a pressure plate. The pressure plate is fixedly connected to the output end of the telescopic cylinder and is used to restrict the upward movement of lightweight defective objects.

7. The lightweight defective product rejection device according to claim 6, characterized in that: The rejection assembly also includes a scraping brush, which is fixedly connected to one end of the pressure plate near the telescopic cylinder, with the bristles of the scraping brush protruding downwards from the bottom surface of the pressure plate.

8. The lightweight defective product rejection device according to claim 1, characterized in that: It also includes a receiving hopper, which is fixedly connected to the conveying device and is used to collect lightweight defective products.

9. A system for rejecting defective lightweight objects, characterized in that: The device includes a controller, a conveying device, a detection device, and a lightweight object defective product rejection device as described in any one of claims 1-8. The detection device is used to detect the mass of the lightweight object, the conveying device is used to continuously convey the lightweight object, and the conveying device, the detection device, and the lightweight object defective product rejection device are all signal-connected to the controller.

10. The lightweight defective product rejection system according to claim 9, characterized in that: The conveying device includes a support frame and a conveyor belt. The lifting and blowing assembly and the rejection assembly are both connected to the support frame. The conveyor belt has multiple through holes evenly distributed on it. The output end of the lifting and blowing assembly can extend out of the through holes to lift lightweight defective objects.

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