Plunger cut-off device for mechanical production

By linking the hydraulic cylinder, servo motor, and winding drum within the housing, the problem of the plunger cutting device being unable to automatically feed material and control the cutting size is solved, thus realizing automatic feeding and precise cutting of the plunger.

CN223833595UActive Publication Date: 2026-01-27TIANJIN JINYUAN MACHINERY MFG
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Patent Information

Application Number
CN202520451004.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-01-27
Estimated Expiration
2035-03-14

AI Technical Summary

Technical Problem

Existing plunger cutting equipment cannot achieve automatic feeding and cannot control the cutting size in a coordinated manner.

Method used

The system employs components such as a housing, hydraulic cylinder, servo motor, winding drum, and return spring. The traction rope is released through the winding drum, the return spring drives the support plate to move, and the top rod pushes the tilting plate to rotate, thus achieving automatic material unloading. The servo motor controls the winding drum to adjust the position of the support plate, ensuring consistent cut dimensions.

Benefits of technology

It enables automatic feeding of the plunger and precise control of the cut-off size, ensuring consistent cut-off size each time, thus improving production efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plunger cut-off, and discloses a plunger cut-off device for mechanical production, which comprises a box body, a feed port is arranged at the upper end of the box body, positioning wheels are fixedly mounted on two sides of the upper end of the feed port, a hydraulic cylinder is fixedly mounted at the upper end of one side of the box body, and a cutter is mounted at the output end of the hydraulic cylinder. According to the technical scheme, the winding reel can release a wound pulling rope, the reset spring drives the supporting plate to move downwards, then the ejector rod makes contact with the overturning plate, the ejector rod pushes the overturning plate, the overturning plate is driven to rotate upwards, and then the cut-off plunger is automatically discharged; when the plunger is cut off, the winding reel can wind the traction rope, then the supporting plate is driven to move upwards to be reset, it is conveniently guaranteed that the cut-off size of the plunger is consistent every time, meanwhile, the winding length of the traction rope can be controlled, the distance between the supporting plate and the cutter is adjusted, and therefore the cut-off size of the plunger is controlled.
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Description

Technical Field

[0001] This utility model relates to the field of plunger cutting technology, specifically a plunger cutting device for mechanical production. Background Technology

[0002] A plunger, also called a positioning ball or ball bearing, is a load-bearing device consisting of a housing, spring, and balls or cylinders. It is widely used in medical devices, lubrication systems, pneumatic tools, and other products.

[0003] The existing plunger cutting device, while capable of cutting the plunger, suffers from at least the following drawbacks: it lacks automatic feeding capabilities and cannot control the cutting dimensions of the plunger in a coordinated manner, necessitating improvement. Therefore, we propose a plunger cutting device for mechanical production. Utility Model Content

[0004] The purpose of this utility model is to provide a plunger cutting device for mechanical production, which solves the problems mentioned in the background art that although the plunger can be cut off, it is inconvenient to automatically feed the material and cannot control the cutting size of the plunger in a linkage manner.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plunger cutting device for mechanical production, comprising a housing, an inlet at the upper end of the housing, positioning wheels fixedly installed on both sides of the upper end of the inlet, a hydraulic cylinder fixedly installed on the upper side of one side of the housing, a cutter installed at the output end of the hydraulic cylinder, an outlet at the lower side of one side of the housing, and a servo motor fixedly installed on the other side of the inner cavity of the housing;

[0006] The output end of the servo motor is equipped with a transmission rod, and a winding drum is fixedly installed at the front end of the transmission rod. A sliding groove is opened on the other side of the inner cavity of the housing. A support plate is provided at the lower end of the inner cavity of the housing. A slider is fixedly installed at one end of the support plate. A flip plate is rotatably installed in the hollow part at the upper end of the support plate. A top rod is welded to the lower end of the inner cavity of the housing, and the top rod is located below the flip plate.

[0007] By adopting the above technical solution, the winding drum can release the wound traction rope, the return spring can drive the support plate to move downward, and then the top rod can contact the tilting plate. The top rod pushes the tilting plate, thereby driving the tilting plate to rotate upward, thus realizing automatic feeding of the cut plunger. After feeding is completed, the servo motor can be controlled to rotate forward, so that the winding drum can wind up the traction rope, thereby driving the support plate to move upward and reset. This makes it easy to ensure that the cutting size of the plunger is consistent each time. At the same time, the winding length of the traction rope can be controlled, thereby adjusting the distance between the support plate and the cutter, thus achieving control of the plunger cutting size.

[0008] Optionally, a traction rope is wound around the outer wall of the winding drum, and the other end of the traction rope is fixedly connected to the upper end of the support plate.

[0009] By adopting the above technical solution and setting up traction ropes, the support plate can be moved by traction.

[0010] Optionally, the size of the slider is adapted to the size of the groove, and the slider and the groove are slidably connected.

[0011] By adopting the above technical solution, the stability of the support plate movement can be guaranteed through the cooperation of the slider and the groove.

[0012] Optionally, a scale is provided on the front side of the support plate, and the lower end of the scale is fixedly connected to the lower end of the inner cavity of the box.

[0013] By adopting the above technical solution and setting a scale, it is convenient to observe the adjustment position of the support plate, thereby ensuring the accuracy of the plunger cut-off.

[0014] Optionally, a return spring is fixedly installed in the inner cavity of the slide, and the other end of the return spring is fixedly connected to the slider.

[0015] By adopting the above technical solution and setting a reset spring, the support plate can be easily moved downwards to reset.

[0016] Optionally, a door is mounted on the front end of the box via a hinge.

[0017] By adopting the above technical solution, it is convenient to maintain the internal components.

[0018] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0019] This technical solution, through the design of a housing, positioning wheels, hydraulic cylinders, servo motors, scales, a tilting plate, and a door, allows the winding drum to release the wound traction rope. A return spring then moves the support plate downwards, causing the push rod to contact the tilting plate. The push rod pushes the tilting plate, causing it to rotate upwards, thus automatically feeding the cut plunger. After feeding, the servo motor can be controlled to rotate forward, causing the winding drum to wind up the traction rope, which in turn moves the support plate upwards to reset. This ensures consistent plunger cutting dimensions for each operation. Furthermore, the winding length of the traction rope can be controlled, adjusting the distance between the support plate and the cutter to control the plunger cutting dimensions. Attached Figure Description

[0020] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a three-dimensional structural schematic diagram of a plunger cutting device for mechanical production according to the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of a plunger cutting device for mechanical production according to this utility model;

[0023] Figure 3 This is a side view of the servo motor structure of a plunger cutting device for mechanical production according to this utility model.

[0024] In the diagram: 1. Box body; 11. Feed inlet; 12. Positioning wheel; 13. Hydraulic cylinder; 14. Cutter; 15. Discharge outlet; 2. Servo motor; 21. Transmission rod; 22. Winding drum; 23. Traction rope; 24. Slide groove; 25. Scale; 3. Support plate; 31. Slider; 32. Return spring; 4. Flip plate; 5. Top rod; 6. Box door. Detailed Implementation

[0025] Please see Figure 1-3 This utility model provides a technical solution: a plunger cutting device for mechanical production, including a housing 1, an inlet 11 at the upper end of the housing 1, positioning wheels 12 fixedly installed on both sides of the upper end of the inlet 11, a hydraulic cylinder 13 fixedly installed on the upper side of one side of the housing 1, a cutter 14 installed at the output end of the hydraulic cylinder 13, an outlet 15 at the lower side of one side of the housing 1, and a servo motor 2 fixedly installed on the other side of the inner cavity of the housing 1.

[0026] A transmission rod 21 is installed at the output end of the servo motor 2. A winding drum 22 is fixedly installed at the front end of the transmission rod 21. A slide groove 24 is provided on the other side of the inner cavity of the housing 1. A support plate 3 is provided at the lower end of the inner cavity of the housing 1. A slider 31 is fixedly installed at one end of the support plate 3. A flip plate 4 is rotatably installed in the hollow part at the upper end of the support plate 3. A top rod 5 is welded to the lower end of the inner cavity of the housing 1 and is located below the flip plate 4. A scale 25 is provided on the front side of the support plate 3. The lower end of the scale 25 is fixedly connected to the lower end of the inner cavity of the housing 1. The scale 25 facilitates the observation of the adjustment position of the support plate 3, thereby ensuring the accuracy of the plunger cutoff. A return spring 32 is fixedly installed in the inner cavity of the slide groove 24. The other end of the return spring 32 is fixedly connected to the slider 31. The return spring 32 facilitates the downward movement and reset of the support plate 3. A door 6 is installed at the front end of the housing 1 by a hinge, which facilitates the maintenance of the internal components.

[0027] The outer wall of the winding drum 22 is wound with a traction rope 23, and the other end of the traction rope 23 is fixedly connected to the upper end of the support plate 3. The support plate 3 can be moved by traction through the setting of the traction rope 23.

[0028] The size of the slider 31 is matched with the size of the slide groove 24, and the slider 31 and the slide groove 24 are slidably connected. The stability of the movement of the support plate 3 can be ensured by the cooperation between the slider 31 and the slide groove 24.

[0029] During cutting, the material is first inserted into the feed inlet 11, passing between the two positioning wheels 12. Then, the hydraulic cylinder 13 is opened, causing the cutter 14 to move to the right, cutting the material. The cut material falls onto the support plate 3. Then, the servo motor 2 is reversed, causing the transmission rod 21 to reverse, releasing the winding drum 22 from the wound traction rope 23. The return spring 32 moves the support plate 3 downward, causing the top rod 5 to contact the tilting plate 4. The top rod 5 pushes the tilting plate 4, causing it to rotate upward, thus automatically feeding the cut plunger. After feeding, the servo motor 2 is rotated forward, causing the winding drum 22 to wind the traction rope 23, moving the support plate 3 upward to reset. This ensures consistent cutting dimensions for each plunger and allows control of the winding length of the traction rope 23, adjusting the distance between the support plate 3 and the cutter 14 to control the plunger cutting dimensions.

Claims

1. A plunger cutting device for mechanical production, comprising a housing (1), characterized in that: The upper end of the box (1) is provided with a feed inlet (11), and positioning wheels (12) are fixedly installed on both sides of the upper end of the feed inlet (11). A hydraulic cylinder (13) is fixedly installed on the upper side of one side of the box (1), and a cutter (14) is installed on the output end of the hydraulic cylinder (13). A discharge port (15) is provided on the lower side of one side of the box (1), and a servo motor (2) is fixedly installed on the other side of the inner cavity of the box (1). The output end of the servo motor (2) is equipped with a transmission rod (21), and a winding drum (22) is fixedly installed at the front end of the transmission rod (21). A sliding groove (24) is opened on the other side of the inner cavity of the box (1). A support plate (3) is provided at the lower end of the inner cavity of the box (1). A slider (31) is fixedly installed at one end of the support plate (3). A flip plate (4) is rotatably installed in the hollow part at the upper end of the support plate (3). A top rod (5) is welded to the lower end of the inner cavity of the box (1), and the top rod (5) is located below the flip plate (4).

2. The plunger cutting device for mechanical production according to claim 1, characterized in that: The outer wall of the winding drum (22) is wound with a traction rope (23), and the other end of the traction rope (23) is fixedly connected to the upper end of the support plate (3).

3. The plunger cutting device for mechanical production according to claim 1, characterized in that: The size of the slider (31) is adapted to the size of the groove (24), and the slider (31) and the groove (24) are slidably connected.

4. The plunger cutting device for mechanical production according to claim 1, characterized in that: A scale (25) is provided on the front side of the support plate (3), and the lower end of the scale (25) is fixedly connected to the lower end of the inner cavity of the box (1).

5. The plunger cutting device for mechanical production according to claim 1, characterized in that: A return spring (32) is fixedly installed in the inner cavity of the slide (24), and the other end of the return spring (32) is fixedly connected to the slider (31).

6. The plunger cutting device for mechanical production according to claim 1, characterized in that: The front end of the box (1) is fitted with a door (6) via a hinge.