Push-out device
By designing an ejection device that utilizes the combination of a push-out cylinder and a return spring, the problem of pallets not being properly conveyed on unpowered roller conveyors was solved, achieving efficient and low-cost pallet conveying and ensuring the continuity and safety of logistics transportation.
Patent Information
- Application Number
- CN202520345503.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-28
AI Technical Summary
In logistics conveyor lines, when powered conveyor lines connect with unpowered roller conveyor lines, pallets cannot be effectively transported to their positions, affecting the next process. Furthermore, manual transfer is inefficient and costly.
Design a push-out device including a pusher, a roller mounting base, an arc-shaped push plate, a return spring, a pin, a guide roller, and a guide rail. The pusher cylinder provides continuous and controllable thrust, and the arc-shaped push plate contacts the pallet to push the pallet to the lower section of the unpowered roller line, reducing the risk of equipment vibration and deviation.
It achieves efficient and accurate pallet delivery, reduces equipment costs, decreases the need for additional motors, improves delivery efficiency, and ensures safe and reliable operation.
Smart Images

Figure CN223765491U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of logistics equipment technology, specifically a push-out device. Background Technology
[0002] In the field of automated loading of logistics conveyor lines, there are many situations where powered conveyor lines are connected to unpowered roller conveyor lines. For example, there is no space to place a motor on the loading mechanism, and using electric rollers has the problems of high cost and low roller load capacity. Ultimately, the pallet cannot be delivered to the correct position, affecting the next process. Using manual conveying for transition is inefficient. Utility Model Content
[0003] This invention provides an ejection device that overcomes the shortcomings described in the background art.
[0004] The technical solution adopted by this utility model to solve its technical problem is:
[0005] An ejection device includes a pusher, a roller mounting base, an arc-shaped push plate, a return spring, a pin, a guide roller, a pressure plate, and a guide rail. The arc-shaped push plate is rotatably mounted on the roller mounting base via the pin, and a return spring for cooperating in lifting and releasing the arc-shaped push plate is nested on the pin. A guide roller is mounted on the side end of the roller mounting base and rolls along the guide rail. In the initial state, a pressure plate is mounted above the arc-shaped push plate.
[0006] A preferred technical solution: The jacking component is a jacking cylinder, the hydraulic system pressure is balanced, the thrust is continuous and controllable, and the risk of equipment shaking or displacement caused by sudden load changes during the pushing process is reduced.
[0007] A preferred technical solution: A limiting part is integrally set at one end of the pin shaft, and a limiting component is inserted at the other end.
[0008] A preferred technical solution: the limiting component is an iron plate.
[0009] A preferred technical solution: The return spring includes a coiled portion and an extended portion.
[0010] A preferred technical solution: The coiled part is wound around the surface of the pin shaft, and the extension part abuts against the back of the arc-shaped push plate. The extension part provides elastic potential energy to the arc-shaped push plate, so that the arc-shaped push plate changes from the initial horizontal state to the vertical state.
[0011] A preferred technical solution: The arc-shaped push plate bounces up under the action of the return spring, and the front end of the arc-shaped push plate contacts the front tray, pushing the entire tray to the lower section of the unpowered roller line.
[0012] A preferred technical solution: After the arc-shaped push plate pops up, the angle between it and the roller mounting base is ninety degrees.
[0013] A preferred technical solution: The roller mounting base is provided with a limiting port to restrict the backward movement of the arc-shaped push plate, so as to maintain the relative state of the arc-shaped push plate after it is erected.
[0014] A preferred technical solution: At least two guide rollers are installed on both sides of the roller mounting base.
[0015] By adopting the above technical solution, the beneficial effects of this utility model are:
[0016] The ejection device in this invention solves the problem of slippage caused by insufficient power when a pallet carrying materials is conveyed to the front-end unpowered roller conveyor. A pusher cylinder pushes an arc-shaped push plate along the guide rail. The arc-shaped push plate bounces up under the action of a return spring, and its surface contacts the side of the pallet, completely pushing the entire pallet down to the lower unpowered roller conveyor line. The overall structure has low cost, requires little space in the lower conveyor line, does not require an additional motor, has high conveying efficiency, all functions can be precisely controlled, and it is safe and reliable. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a front view of the present invention;
[0020] Figure 3 A schematic diagram of the structure for mounting the ejection device onto the roller conveyor.
[0021] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;
[0022] Figure 5 This is a schematic diagram of the roller structure;
[0023] Figure 6 A schematic diagram of the structure for the ejection device and the jacking component to work together.
[0024] Explanation of key figure labels:
[0025] 1. Pushing component; 2. Roller mounting base; 21. Limiting port; 3. Arc-shaped push plate; 4. Return spring; 41. Curved part; 42. Extension part; 5. Pin shaft; 51. Limiting part; 52. Limiting component; 6. Guide roller; 7. Pressure plate; 8. Guide rail; 100. Roller conveyor. Detailed Implementation
[0026] like Figures 1-6As shown, a pushing device includes a pusher 1, a roller mounting base 2, an arc-shaped push plate 3, a return spring 4, a pin 5, a guide roller 6, a pressure plate 7, and a guide rail 8. The arc-shaped push plate 3 is rotatably mounted on the roller mounting base 2 via the pin 5, and a return spring 4 for cooperating in lifting and lowering the arc-shaped push plate 3 is nested on the pin 5. A guide roller 6 is mounted on the side end of the roller mounting base 2, and the guide roller 6 rolls along the guide rail 8. In the initial state, a pressure plate 7 is mounted above the arc-shaped push plate 3. The pushing device can be installed on a roller conveyor 100.
[0027] Furthermore, the jacking component 1 is a jacking cylinder with balanced hydraulic system pressure and continuous and controllable thrust, reducing the risk of equipment shaking or displacement caused by sudden load changes during the jacking process.
[0028] Furthermore, a limiting part 51 is integrally provided at one end of the pin shaft 5, and a limiting member 52 is inserted at the other end.
[0029] Furthermore, the limiting component 52 is made of iron plate.
[0030] Furthermore, the return spring 4 includes a coiled portion 41 and an extension portion 42.
[0031] Furthermore, the coiled portion 41 is wound around the surface of the pin 5, and the extension portion 42 abuts against the back of the arc-shaped push plate 3. The extension portion 42 provides elastic potential energy to the arc-shaped push plate 3, causing the arc-shaped push plate 3 to change from the initial horizontal state to the vertical state.
[0032] Furthermore, the arc-shaped push plate 3 bounces up under the action of the return spring 4, and the front end of the arc-shaped push plate 3 contacts the front tray, pushing the entire tray completely down to the unpowered roller line.
[0033] Furthermore, after the arc-shaped push plate 3 pops up, the angle between it and the roller mounting base 2 is ninety degrees.
[0034] Furthermore, the roller mounting base 2 is provided with a limiting port 21 to restrict the backward movement of the arc-shaped push plate 3, so as to maintain the relative state of the arc-shaped push plate 3 after it is erected.
[0035] Furthermore, at least two guide rollers 6 are installed on both sides of the roller mounting base 2.
[0036] The movable end of the push cylinder is rigidly connected to the roller mounting base 2. After startup, the push cylinder outputs hydraulic power, causing the roller mounting base 2 and the arc-shaped push plate 3 fixed thereon to move synchronously along the guide rail 8, achieving directional displacement of the pushing device. When the arc-shaped push plate 3 completely leaves the area covered by the pressure plate 7, the elastic potential energy of the return spring 4 is released, pushing the push plate upward to a vertical position (forming a 90° angle with the top surface of the roller conveyor). In the vertical state, the arc-shaped push plate 3 contacts the material from the side (or contacts the pallet bearing surface), and under the continuous thrust of the push cylinder, accurately transfers the material to the unpowered roller conveyor line.
[0037] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification should still fall within the scope of the present utility model.
Claims
1. A push-out device, characterized in that The utility model provides a pusher, a roller mounting base, an arc push plate, a reset spring, a pin shaft, a guide roller, a pressing plate and a guide rail, the arc push plate is rotatably installed on the roller mounting base through the pin shaft, and the pin shaft is nested with the reset spring for matching the lifting and placing of the arc push plate, the guide roller is installed on the side end of the roller mounting base, the guide roller rolls along the guide rail, and the pressing plate is installed above the arc push plate in the initial state.
2. The push-out device according to claim 1, characterized in that The pusher is a push oil cylinder.
3. The push-out device according to claim 1, characterized in that One end of the pin shaft is integrally provided with a limiting part, and the other end is provided with a limiting piece.
4. The push-out device according to claim 3, characterized in that The limiting piece is an iron plate.
5. The push-out device according to claim 1, characterized in that The reset spring comprises a curling part and an extension part.
6. The push-out device according to claim 5, characterized in that The curling part is wound on the surface of the pin shaft, and the extension part is abutted on the back of the arc push plate.
7. The push-out device according to claim 1, characterized in that The arc push plate is popped up under the action of the reset spring, the front end of the arc push plate is in contact with the tray in front of the front end, and the tray is completely pushed to the lower section of the non-power roller line as a whole.
8. The push-out device according to claim 1, characterized in that The angle between the arc push plate and the roller mounting base is ninety degrees after the arc push plate is popped up.
9. The push-out device according to claim 1, characterized in that The roller mounting base is provided with a limiting opening for limiting the backward movement of the arc push plate.
10. The push-out device according to claim 1, characterized in that At least two guide rollers are installed on both sides of the roller mounting base.