Automatic ejection structure of hollow pipe die waste

Abstract

The utility model relates to hollow tube die technology field discloses a kind of hollow tube die waste automatic ejection structure, including punch needle main part, the inside sliding connection of punch needle main part has thimble, the one end of thimble is fixedly connected with elastic component, the one end sliding connection of thimble has sliding sleeve, the one end of thimble is connected with replacement component with screw thread, the elastic component includes the positioning rod fixedly connected to the one end of thimble, the surface of the positioning rod is sleeved with support spring;The replacement component includes the threaded bolt connected to the one end of thimble with screw thread.The hollow tube die waste automatic ejection structure, by the setting of elastic component and sliding sleeve, reach the effect that waste is automatically ejected, and the elastic expansion amount of support spring and thimble push-out distance can be adjusted by the screwing of adjusting bolt, reduce the product failure rate caused by waste retention, ensure the final quality of product, improve production quality.

Description

Technical Field

[0001] This utility model relates to the field of hollow tube punching die technology, and in particular to an automatic ejection structure for waste material from hollow tube punching dies. Background Technology

[0002] The automatic scrap ejection structure for hollow tube stamping dies is a device used to automatically remove scrap during metal processing or stamping, typically in the stamping process of hollow tubes. Its main purpose is to ensure that scrap is quickly and effectively removed from the product during stamping, thereby guaranteeing production efficiency and product quality. This structure is widely used in industries such as metal stamping, tube manufacturing, and automotive parts production, especially in production environments requiring rapid and precise stamping and scrap handling.

[0003] The existing hollow tube punching die has an unstable overall die frame structure, which causes the scrap material to move up and down with the punch press during the punching of hollow tube products, making it impossible to completely remove the material. This results in deformation of the product holes and seriously affects product quality. Utility Model Content

[0004] (a) Technical problems to be solved The purpose of this utility model is to provide an automatic ejection structure for waste material from hollow tube punching dies, which solves the problem mentioned in the background art that the overall die frame structure of existing hollow tube punching dies is unstable, causing the waste material to move up and down with the punch press during the punching of hollow tube products, making it impossible to completely remove the material, resulting in deformation of the product holes and seriously affecting product quality.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: an automatic ejection structure for waste material from a hollow tube punch, comprising a punch body, an ejector pin slidably connected inside the punch body, a spring assembly fixedly connected to one end of the ejector pin, a sliding sleeve slidably connected to one end of the ejector pin, and a replacement assembly threadedly connected to one end of the ejector pin. The spring assembly includes a positioning rod fixedly connected to one end of the ejector pin, and a support spring sleeved on the surface of the positioning rod. The replacement assembly includes a threaded bolt threadedly connected to one end of the ejector pin, and a replaceable pressure block fixedly connected to one end of the threaded bolt.

[0006] As a further embodiment of this utility model, a fixing sleeve is fixedly connected to one end of the punch body, and an adjusting bolt is connected to the internal thread of one end of the fixing sleeve. A nut is fixedly connected to one end of the adjusting bolt. The setting of the nut facilitates the rotation of the adjusting bolt.

[0007] As a further embodiment of this utility model, the punch body has a sliding groove inside that matches the ejector pin, and one end of the ejector pin has a threaded hole that matches the threaded bolt. The threaded hole facilitates the rotation and installation of the threaded bolt.

[0008] As a further embodiment of this utility model, a limiting ring is sleeved on one end of the ejector pin. The limiting ring is slidably connected inside the sliding sleeve. The limiting ring serves to limit the ejector pin and prevent it from detaching.

[0009] As a further embodiment of this utility model, the positioning rod is slidably connected to the inside of the sliding sleeve, and the inside of the sliding sleeve is provided with a sliding hole that matches the positioning rod. The sliding hole facilitates the sliding of the positioning rod and maintains stability.

[0010] As a further embodiment of this utility model, the fixed sleeve has a screw hole inside that matches the adjusting bolt, and one end of the adjusting bolt is fixedly connected to a pressing block. The pressing block serves to protect one end of the adjusting bolt.

[0011] As a further embodiment of this utility model, the punch body is made of carbon steel, and the replaceable pressure block is made of tungsten steel. The replaceable pressure block extends the service life of the punch.

[0012] (III) Beneficial Effects This utility model provides an automatic ejection structure for waste material from hollow tube punching dies, which has the following beneficial effects: 1. This hollow tube punching die scrap automatic ejection structure, through the setting of elastic components and sliding sleeves, utilizes the press pressure during punching to force the ejector pin to press against the product surface, thereby causing the ejector pin to retract and slide within the sliding sleeve. This, in turn, forces the support spring to retract and generate elastic force. When the punch body is punched, the support spring returns to its original deformation, pushing the product scrap, thus completely removing the scrap after punching. This achieves the effect of automatically ejecting the scrap. At the same time, the elastic extension and contraction of the support spring and the ejector pin ejection distance can be adjusted by screwing in the adjusting bolt, reducing the product defect rate caused by scrap retention, ensuring the final product quality, and improving production quality.

[0013] 2. The automatic ejection structure for hollow tube punching die scrap, through the setting of replacement components, addresses the issue of wear on the ejector pin end due to continuous ejection during use. Therefore, a replaceable pressure block is designed at the ejector pin end. When the replaceable pressure block wears under pressure, the adjusting bolt is turned to pull out the ejector pin, and then the replaceable pressure block is rotated to remove the threaded bolt at one end of the ejector pin. A new replaceable pressure block is then screwed on, achieving the effect of replacing the replaceable pressure block separately instead of the entire ejector pin when the ejector pin end wears, reducing the cost of core component wear and increasing the service life of the ejector pin. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the disassembled structure of this utility model; Figure 3 This is a schematic diagram of the replacement component and ejector pin structure of this utility model; Figure 4 This is a schematic diagram of the elastic component structure of this utility model.

[0015] In the diagram: 1. Punch body; 2. Ejector pin; 3. Spring assembly; 301. Positioning rod; 302. Support spring; 4. Sliding sleeve; 5. Replacement assembly; 501. Threaded bolt; 502. Replaceable pressure block; 6. Fixing sleeve; 7. Adjusting bolt; 8. Nut; 9. Limiting ring; 10. Extrusion block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0017] Please see Figures 1 to 4This utility model provides a technical solution: an automatic ejection structure for waste material from a hollow tube punching die, comprising a punch body 1, an ejector pin 2 slidably connected inside the punch body 1, and an elastic component 3 fixedly connected to one end of the ejector pin 2. Through the arrangement of the elastic component 3 and the sliding sleeve 4, the waste material is automatically ejected. Simultaneously, the elastic extension and contraction of the support spring 302 and the ejection distance of the ejector pin 2 can be adjusted by screwing in the adjusting bolt 7, reducing the product defect rate caused by waste material retention, ensuring the final product quality, and improving production quality. The ejector pin 2 is slidably connected to... A sliding sleeve 4 is connected to a replacement component 5 threadedly connected to one end of the ejector pin 2. By setting the replacement component 5, the replaceable pressure block 502 can be replaced separately instead of the entire ejector pin 2 when the end of the ejector pin 2 is worn, thereby reducing the wear cost of the core component and improving the service life of the ejector pin 2. The elastic component 3 includes a positioning rod 301 fixedly connected to one end of the ejector pin 2, and a support spring 302 is sleeved on the surface of the positioning rod 301. The replacement component 5 includes a threaded bolt 501 threadedly connected to one end of the ejector pin 2, and a replaceable pressure block 502 is fixedly connected to one end of the threaded bolt 501.

[0018] One end of the punch body 1 is fixedly connected to a fixed sleeve 6. An adjusting bolt 7 is connected to the internal thread of one end of the fixed sleeve 6. A nut 8 is fixedly connected to one end of the adjusting bolt 7. The nut 8 facilitates the rotation of the adjusting bolt 7.

[0019] The punch body 1 has a groove inside that matches the ejector pin 2. One end of the ejector pin 2 has a threaded hole that matches the threaded bolt 501. The threaded hole facilitates the rotation and installation of the threaded bolt 501.

[0020] One end of the ejector pin 2 is fitted with a limiting ring 9, which is slidably connected inside the sliding sleeve 4. The limiting ring 9 serves to limit the ejector pin 2 and prevent it from detaching.

[0021] The positioning rod 301 is slidably connected to the inside of the sliding sleeve 4. The inside of the sliding sleeve 4 is provided with a sliding hole that matches the positioning rod 301. The sliding hole facilitates the sliding of the positioning rod 301 and maintains stability.

[0022] The fixed sleeve 6 has a screw hole that matches the adjusting bolt 7. One end of the adjusting bolt 7 is fixedly connected to a pressing block 10. The pressing block 10 serves to protect one end of the adjusting bolt 7.

[0023] The punch body 1 is made of carbon steel, and the replaceable pressure block 502 is made of tungsten steel. The replaceable pressure block 502 extends the service life of the punch 2.

[0024] In this invention, the working steps of the device are as follows: First step: During stamping, the pressure of the punch press is used to make the ejector pin 2 press against the surface of the product, and then the ejector pin 2 retracts and slides in the sliding sleeve 4. Then the support spring 302 is forced to retract and generate elastic force. When the punch body 1 completes the punching, the support spring 302 restores its deformation and pushes the product waste, so that the waste after the product is stamped is completely removed. Second step: During use, as the ejector pin 2 is constantly pushed out, the end of the ejector pin 2 is prone to wear. Therefore, a replaceable pressure block 502 is designed at the end of the ejector pin 2. When the replaceable pressure block 502 is worn by force, the adjusting bolt 7 is turned. The third step: Pull out the ejector pin 2, then rotate the replaceable pressure block 502, causing the threaded bolt 501 to be removed from one end of the ejector pin 2 by threaded rotation, and then tighten the new replaceable pressure block 502 screwed on. It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. The technical details of the device's power mechanism, power supply system, and control system are not fully described. However, those skilled in the art, understanding the principle of the above utility model, can clearly understand the specifics of its power mechanism, power supply system, and control system. The control method in the application document is automatic control via a controller, and the controller's control circuit can be implemented through simple programming by those skilled in the art. All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic ejection structure for waste material from hollow tube punching dies, comprising a punch body (1), characterized in that: The punch body (1) is internally slidably connected to a pin (2), one end of the pin (2) is fixedly connected to a spring component (3), one end of the pin (2) is slidably connected to a sliding sleeve (4), and one end of the pin (2) is threadedly connected to a replacement component (5). The elastic component (3) includes a positioning rod (301) fixedly connected to one end of the ejector pin (2), and a support spring (302) is sleeved on the surface of the positioning rod (301). The replacement component (5) includes a threaded bolt (501) threaded to one end of the ejector pin (2), and a replaceable pressure block (502) is fixedly connected to one end of the threaded bolt (501).

2. The automatic ejection structure for hollow tube punching die waste according to claim 1, characterized in that: One end of the punch body (1) is fixedly connected to a fixed sleeve (6), and an adjusting bolt (7) is connected to the internal thread of one end of the fixed sleeve (6), and a nut (8) is fixedly connected to one end of the adjusting bolt (7).

3. The automatic ejection structure for hollow tube punching die waste according to claim 1, characterized in that: The punch body (1) has a groove inside that is compatible with the ejector pin (2), and one end of the ejector pin (2) has a threaded hole that is compatible with the threaded bolt (501).

4. The automatic ejection structure for hollow tube punching die waste according to claim 1, characterized in that: One end of the ejector pin (2) is fitted with a limiting ring (9), which is slidably connected to the inside of the sliding sleeve (4).

5. The automatic ejection structure for hollow tube punching die waste according to claim 1, characterized in that: The positioning rod (301) is slidably connected to the inside of the sliding sleeve (4), and the inside of the sliding sleeve (4) is provided with a sliding hole that is compatible with the positioning rod (301).

6. The automatic ejection structure for hollow tube punching die waste according to claim 2, characterized in that: The fixed sleeve (6) has a screw hole inside that matches the adjusting bolt (7), and one end of the adjusting bolt (7) is fixedly connected to a pressing block (10).

7. The automatic ejection structure for hollow tube punching die waste according to claim 1, characterized in that: The punch body (1) is made of carbon steel, and the replaceable pressure block (502) is made of tungsten steel.

Images