A press ejector rod removal device

CN224702641UActive Publication Date: 2026-09-01SHAANXI HEAVY DUTY AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202521576270.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-28
Publication Date
2026-09-01
Estimated Expiration
2035-07-28

AI Technical Summary

Technical Problem

[0002]压力机工作台上的顶杆在长期使用后易因变形、锈蚀或油污粘连而卡死,传统方法(如锤击、撬棍)存在以下问题:人力操作效率低,存在安全隐患;易损伤顶杆表面或工作台顶杆孔;无法控制施力方向和强度,可能引发二次卡死;在现有方案上引用液压顶推装置,但该结构复杂且难以适配不同规格顶杆

Benefits of technology

[0013]本实用新型结构简单,便于操作,能够适应不同规格顶杆,适应性强;

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a press ejector pin removal device, including a pull rod, a spring, a magnet, and a sleeve; the pull rod is provided with a sleeve, and the spring and magnet are respectively sleeved on the pull rod, with the spring and magnet slidably connected to the inner wall of the sleeve; this utility model has a simple structure, is easy to operate, can adapt to ejector pins of different specifications, and has strong adaptability; it can also significantly shorten the ejector pin removal time, improve mold changing efficiency, and reduce the labor intensity of operation.
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Description

Technical Field

[0001] This utility model relates to the field of press technology, and in particular to a press ejector rod removal device. Background Technology

[0002] After long-term use, the push rods on the press worktable are prone to jamming due to deformation, corrosion, or oil stains. Traditional methods (such as hammering and prying) have the following problems: low efficiency of manual operation and safety hazards; easy damage to the push rod surface or push rod hole on the worktable; inability to control the direction and intensity of force, which may cause secondary jamming; the existing solution uses a hydraulic jacking device, but the structure is complex and difficult to adapt to push rods of different specifications. Utility Model Content

[0003] The purpose of this invention is to provide a press ejector rod removal device to solve the problems mentioned in the background art.

[0004] This utility model is achieved using the following technical solution:

[0005] A press ejector rod removal device includes a pull rod, a spring, a magnet, and a sleeve; the sleeve is provided on the pull rod, and the spring and the magnet are respectively sleeved on the pull rod, and the spring and the magnet are slidably connected to the inner wall of the sleeve.

[0006] Preferably, a buffer pad is also fitted on the pull rod, the buffer pad is disposed between the spring and the magnet, and the buffer pad is slidably connected to the inner wall of the sleeve; one end of the spring is connected to the buffer pad, and the other end is connected to the inner wall of the sleeve.

[0007] Preferably, one end of the sleeve is provided with a hole and the other end is provided with an opening; the hole of the sleeve passes through the pull rod, and the opening of the sleeve is provided with a pressure cap.

[0008] Preferably, the pull rod is provided with a screw hole, and a screw is provided in the screw hole, the screw passing through the pressure cap and screwed into the screw hole.

[0009] Preferably, the handle of the lever is provided with a pull ring.

[0010] Preferably, the sleeve has a chamfered structure away from the handle portion of the pull rod.

[0011] Preferably, the tie rod is a metal tube.

[0012] Compared with the prior art, the press ejector rod removal device provided by this utility model has at least the following beneficial effects:

[0013] This utility model has a simple structure, is easy to operate, and can adapt to different specifications of top rods, making it highly adaptable.

[0014] This invention can significantly shorten the ejector pin removal time, improve mold changing efficiency, and reduce the labor intensity of operations. Attached Figure Description

[0015] Fig. 1 This is a schematic diagram of the internal structure of the present invention.

[0016] Fig. 2 This is a schematic diagram of the overall structure of this utility model.

[0017] In the diagram: 1. Pull rod; 2. Spring; 3. Buffer pad; 4. Magnet; 5. Pressure cap; 6. Screw; 7. Sleeve. Detailed Implementation

[0018] The present invention will be further described below with reference to the embodiments.

[0019] like Figs. 1-2 As shown: A push rod removal device for a press includes a pull rod 1, a spring 2, a magnet 4, and a sleeve 7. The sleeve is mounted on the pull rod 1, and the spring 2 and magnet 4 are slidably mounted on the pull rod 1. The spring 2 and magnet 4 are slidably connected to the inner wall of the sleeve 7. The magnet 4 is a powerful magnet, which is used to remove the push rod from the press worktable.

[0020] A buffer pad 3 is also fitted on the pull rod 1. The buffer pad 3 is positioned between the spring 2 and the magnet 4. The buffer pad 3 is slidably connected to the inner wall of the sleeve 7. One end of the spring 2 abuts against the buffer pad 3, and the other end abuts against the inner wall of the sleeve 7. The buffer pad 3 is made of a rubber pad with a buffering function.

[0021] The sleeve 7 has a hole at one end and an opening at the other end; the hole of the sleeve 7 passes through the pull rod 1, and the opening of the sleeve 7 is fitted with a pressure cap 5.

[0022] The pull rod 1 has a screw hole, and a screw 6 is installed in the screw hole. The screw 6 passes through the pressure cap 5 and is screwed into the screw hole. The spring 2, buffer pad 3, magnet 4 and sleeve 7 on the pull rod 1 are fastened and pressed together by the pressure cap 5 and screw 6, which makes it easy to disassemble and assemble, and facilitates daily maintenance.

[0023] The handle of lever 1 is equipped with a pull ring. The pull ring has a polygonal ring structure, which makes it easy to grip and apply force.

[0024] The sleeve 7, located away from the handle of the pull rod 1, has a chamfered structure to facilitate alignment with the push rod hole, adsorption, and gripping of the push rod, thus avoiding scratches.

[0025] The pull rod 1 is made of metal tubing. Furthermore, the handle of the pull rod 1 is formed by bending a single piece of metal tubing.

[0026] Working principle: The chamfered structure of the sleeve 7 is vertically inserted into the top rod hole of the worktable by the pull ring of the pull rod 1. The magnet 4 at the sleeve 7 attracts the top rod to complete the removal action. After the top rod is removed, the magnet 4 is separated from the top rod, and the top rod is placed. The spring 2 returns to its original position, which facilitates the reset of the magnet 4 and makes it easy to use next time.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A press ejector rod removal device, characterized in that, It includes a pull rod (1), a spring (2), a magnet (4), and a sleeve (7); the sleeve is provided on the pull rod (1), and the spring (2) and the magnet (4) are respectively sleeved on the pull rod (1), and the spring (2) and the magnet (4) are slidably connected to the inner wall of the sleeve (7).

2. The press ejector rod removal device as described in claim 1, characterized in that, The pull rod (1) is also fitted with a buffer pad (3), which is located between the spring (2) and the magnet (4). The buffer pad (3) is slidably connected to the inner wall of the sleeve (7). One end of the spring (2) is connected to the buffer pad (3), and the other end is connected to the inner wall of the sleeve (7).

3. The press ejector rod removal device as described in claim 1, characterized in that, The sleeve (7) has a hole at one end and an opening at the other end; the hole of the sleeve (7) passes through the pull rod (1), and the opening of the sleeve (7) is provided with a pressure cap (5).

4. The press ejector rod removal device as described in claim 3, characterized in that, The pull rod (1) is provided with a screw hole, and a screw (6) is provided in the screw hole. The screw (6) passes through the pressure cap (5) and is screwed into the screw hole.

5. The press ejector rod removal device as described in claim 1, characterized in that, The handle (1) is provided with a pull ring.

6. The press ejector rod removal device as described in claim 1, characterized in that, The sleeve (7) is provided with a chamfered structure at the handle part away from the pull rod (1).

7. The press ejector rod removal device as described in claim 5, characterized in that, The tie rod (1) is a metal tube.