Push rod removing device

By using a push rod rejection device driven by a high-speed solenoid valve and cylinder, combined with a hollow push surface and corner straight plate design, the problem of rejecting heavier products on high-speed production lines has been solved, achieving fast and accurate waste rejection and improving production line efficiency and product quality.

CN223960101UActive Publication Date: 2026-03-03TECHIK INSTR SHANGHAI
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Patent Information

Application Number
CN202423112542.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2026-03-03
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

Existing technologies are difficult to effectively remove defective products on production lines for heavier products weighing over 400g. Furthermore, the air-blowing removal method may damage the products. Traditional push rod removal devices have excessively long strokes and slow operating speeds, making them unsuitable for high-speed production line requirements.

Method used

The push rod rejection device, driven by a high-speed solenoid valve and cylinder, achieves fast and accurate rejection by shortening the push rod stroke and setting hollow and corner straight plates on the push surface, combined with precise control by the host computer.

Benefits of technology

It improved rejection efficiency, reduced production line failures, enhanced rejection accuracy, ensured product quality stability and consistency, and reduced the defect rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a push rod removing device which comprises a push rod housing, a push rod, a push surface, a transmission module, a conveying belt, an electromagnetic valve and an air cylinder. The front end of the push rod is a push surface, and the push surface is provided with a circular push surface hollow for reducing the resistance on the push surface. A push face corner straight plate is arranged at the front end of the push rod and used for preventing the push rod from bringing back a next product in the return stroke. The push face corner straight plate is perpendicular to the push face, and an oval straight plate hollow is formed in the push face corner straight plate and used for reducing the weight of the push face corner straight plate. The air cylinder pushes the push rod to push forwards through the connecting rod. Compared with the prior art, the device has the advantages of high efficiency, few faults, high accuracy and the like.
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Description

Technical Field

[0001] This utility model relates to the field of automated production lines, and in particular to a push rod rejection device. Background Technology

[0002] Ensuring product quality and production efficiency are key objectives on modern automated production lines. Automated production lines are widely used in manufacturing to increase production speed, reduce labor costs, minimize human error, and guarantee high-quality output. In some production lines, when products fail to meet quality standards, such as dimensional deviations, material defects, or bottle tilting, they need to be rejected. Air-blowing rejection is a commonly used method for rapid rejection. However, in certain production environments, such as on production lines handling heavier products exceeding specifications by 400g, air-blowing rejection may not be effective. Therefore, adapting rejection devices to production lines handling heavier products while ensuring high-speed response is a technical challenge that needs to be addressed. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the existing technology and provide a push rod rejection device. Through a high-speed solenoid valve and a high-speed cylinder, the push rod can be rejected quickly and powerfully. At the same time, by shortening the push rod stroke and setting hollow and corner straight plates on the push surface, the rejection efficiency and accuracy are further guaranteed.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] According to one aspect of the present invention, a push rod rejection device is provided, comprising: a push rod cover, a push rod, a push surface, a transmission module, a conveyor belt, a solenoid valve, and a cylinder.

[0006] The push rod cover is disposed outside the push rod, solenoid valve and cylinder; the front end of the push rod is a push surface; the transmission module includes a transmission drive module and a conveyor belt, the transmission drive module is disposed below the conveyor belt; the push rod is disposed on the side of the transmission module, and the travel direction of the push rod is perpendicular to the conveying direction of the conveyor belt.

[0007] Furthermore, the push surface is provided with a push surface hollowing.

[0008] Furthermore, the hollowed-out surface is circular in shape.

[0009] Furthermore, the front end of the push rod is also provided with a push surface corner straight plate, which is installed perpendicular to the push surface.

[0010] Furthermore, the corner straight plate of the push surface has a straight plate cutout.

[0011] Furthermore, the shape of the hollowed-out straight plate is elliptical.

[0012] Furthermore, the solenoid valve and the cylinder are connected by an air pipe.

[0013] Furthermore, the cylinder pushes the push rod forward via a connecting rod.

[0014] Furthermore, the transmission module is provided with a sheet metal square support plate and support frame.

[0015] Furthermore, universal support feet are installed below the support frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) Improve the efficiency of rejecting waste in the production line: The push rod is driven by a high-speed solenoid valve and a cylinder to achieve rapid action of the push rod. Compared with the existing technology, the push rod stroke is shortened and the efficiency is improved. It is also suitable for high-speed production lines. The push surface is hollowed out to reduce resistance. In addition, the hollowed-out push surface and the hollowed-out straight plate on the corner of the push surface reduce the weight and thus reduce the push rod force, which is also conducive to improving the rejection efficiency.

[0018] (2) Reduced production line failures: A push surface corner straight plate is set at the front end of the push rod. During the push rod return stroke, it is used to intercept the next product. The push surface brings the next product back and jams it on the discharge device. At the same time, the shorter push rod stroke makes it easier to accurately control the length of the push rod push out, thereby preventing the push surface from bringing back the product during the return stroke and causing line blockage, reducing failures caused by products carried back during the return stroke.

[0019] (3) Enhance rejection accuracy: By sending appropriate short-time signals from the host computer to control the high-speed solenoid valve and cylinder, the device can accurately control the action time and force of the push rod, thereby ensuring the accurate rejection of waste. This precision helps maintain the stability and consistency of product quality and reduce the defect rate caused by improper rejection. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the push rod rejection device;

[0021] Figure 2 This is a structural diagram of the push rod drive device inside the push rod cover.

[0022] The markings in the diagram are as follows: 1. Push rod cover; 2. Push rod; 21. Push surface; 22. Push surface cutout; 23. Push surface corner straight plate; 24. Straight plate cutout; 3. Transmission module; 31. Conveyor belt; 4. Support plate; 5. Support frame; 6. Universal support foot; 7. Solenoid valve; 8. Cylinder. Detailed Implementation

[0023] 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, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.

[0024] Traditional rejection methods, such as air-blowing rejection, are suitable for lightweight, easily blown products. However, in some cases, such as when the product is heavy, has a complex shape, or the production line speed is too high, air-blowing rejection often fails to achieve the desired effect. Furthermore, air-blowing rejection can damage the product, affecting its quality. Therefore, a more efficient and reliable rejection method is needed to adapt to the needs of different production environments. To address these issues, some rejection devices based on mechanical structures, such as push-rod rejection devices, exist. These devices use the movement of a mechanical push rod to push defective products or waste off the production line. However, traditional push-rod rejection devices have some problems, such as excessively long stroke and slow operating speed, making them difficult to adapt to the needs of high-speed production lines. In addition, some push-rod rejection devices have complex structures and high maintenance costs, hindering their widespread application on production lines. To address the shortcomings of traditional rejection methods in high-speed production line environments and the problems of traditional push-rod rejection devices, this embodiment discloses a high-speed push-rod rejection device suitable for high-speed production lines. This device shortens the push rod's stroke by optimizing its structural design and achieves rapid push rod movement through the cooperation of a high-speed solenoid valve and a cylinder.

[0025] like Figure 1 As shown, a push rod rejection device includes: a push rod cover 1, a push rod 2, a push surface 21, a transmission module 3, a conveyor belt 31, a solenoid valve 7, and a cylinder 8. The push rod cover 1 is disposed outside the push rod 2, the solenoid valve 7, and the cylinder 8. The front end of the push rod 2 is the push surface 21. The transmission module includes a transmission drive module and a conveyor belt 31, with the transmission drive module disposed below the conveyor belt 31. The push rod 2 is disposed on the side of the transmission module 3, and the traveling direction of the push rod 2 is perpendicular to the conveying direction of the conveyor belt 31.

[0026] A circular perforation 22 is provided on the push surface 21. This circular perforation 22 allows airflow to flow smoothly along the surface, preventing airflow separation and turbulence, which increases resistance. When the push surface 21 pushes, the circular perforation design of the perforation 22 helps the airflow pass through smoothly, avoiding the formation of high-pressure areas on the push surface 21. The perforation 22 also reduces the weight of the push surface 21. A push surface corner plate 23 is also provided at the front end of the push rod 2, installed perpendicularly to the push surface 21. The push surface corner plate 23 has an elliptical perforation 24, which is used to reduce the weight of the push surface corner plate 23.

[0027] To achieve rapid and accurate rejection, this embodiment employs a high-speed solenoid valve 7 and a cylinder 8 as driving components. A short-duration signal is sent from the host computer to control the coordinated operation of the solenoid valve and cylinder, enabling the rapid extension and retraction of the push rod. Figure 2 The diagram shows the internal structure of the push rod drive device within the push rod housing. The solenoid valve 7 and cylinder 8 are connected via an air pipe. Cylinder 8 pushes the push rod 2 forward via a connecting rod. The solenoid valve 7 and cylinder 8 are high-speed drive devices. Compared to standard push rod rejection, the stroke of the push rod body 2 in this embodiment is shorter, allowing for more precise push rod ejection and reducing product retraction. The transmission module 3 is equipped with a sheet metal square support plate 4 and a support frame 5. Universal support feet 6 are installed below the support frame 5. By sending a suitable short-duration signal from the host computer, the coordinated operation of the high-speed solenoid valve and cylinder 7 can be controlled, enabling the push rod body 2 to perform a fast and accurate rejection action.

[0028] During the installation and use of the push rod rejection device, the conveying module 3 is started first. When the host computer detects waste material, it sends an accurate push signal to the solenoid valve 7. When the solenoid valve 7 receives the push signal, it opens the air pipe, allowing airflow to be delivered to the cylinder 8. The cylinder 8 pushes the push rod 2 forward through the connecting rod. When the push rod 2 reaches the designated progress point, the waste material is rejected. When the push signal is interrupted, the airflow is interrupted, and the push rod retracts. Because the push rod 2 has a short stroke and moves quickly, the rejection task can be completed accurately in a very short time without affecting the overall speed of the production line.

[0029] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A push rod ejector device, characterized in that, Include: Push rod cover (1), push rod (2), push face (21), transmission module (3), conveyor belt (31), electromagnetic valve (7) and air cylinder (8), The push rod cover (1) is arranged outside the push rod (2), the electromagnetic valve (7) and the air cylinder (8); the front end of the push rod (2) is the push face (21); the transmission module includes a transmission drive module and a conveyor belt (31), and the transmission drive module is arranged below the conveyor belt (31); the push rod (2) is arranged on the side of the transmission module (3), and the advancing direction of the push rod (2) is perpendicular to the conveying direction of the conveyor belt (31); The push face (21) is provided with a push face hollow (22), the shape of the push face hollow (22) is circular, the front end of the push rod (2) is further provided with a push face corner straight plate (23), the push face corner straight plate (23) is vertically installed with the push face (21), and the push face corner straight plate (23) is provided with a straight plate hollow (24); The transmission module (3) is provided below with a square support plate (4) and a support frame (5) made of sheet metal.

2. A pusher bar removal device according to claim 1, wherein The shape of the straight plate hollow (24) is oval.

3. A push broom removal device according to claim 1, wherein, The electromagnetic valve (7) and the air cylinder (8) are connected through an air pipe.

4. A push broom removal device according to claim 1, wherein, The air cylinder (8) drives the push rod (2) to move forward through a connecting rod.

5. A push broom removal device according to claim 1, wherein, The support frame (5) is installed below with a universal support leg (6).