Expansion and contraction integrated mold for elastic check ring

Abstract

The utility model discloses an elastic collar expansion and contraction integrated die which comprises a lower die base and a guide pillar, the guide pillar is installed at the center of the top end of the lower die base and fixedly connected with the lower die base, an upper die base is arranged above the lower die base, inner sliding blocks are installed at the positions, on the two sides of the guide pillar, of the top end of the lower die base, and the inner sliding blocks are fixedly connected with the guide pillar. An inner sliding block is installed at the top end of the upper die base and slidably connected with the lower die base, a bearing ring is installed at the top end of the inner sliding block and connected with the inner sliding block through a bolt, the bearing ring provides sliding limiting support for the inner sliding block, an inner die block is installed at the top end of the bearing ring, and a limiting ring is installed in the center of the bottom end of the upper die base. And spring guide sleeves are mounted at the bottom end of the upper die base on the two sides of the limiting ring. According to the utility model, the elastic check ring can be conveniently and elastically produced in cooperation with expansion and contraction, the roundness of a workpiece can be conveniently increased, and the production quality of the elastic check ring is improved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to an integrated mold for the expansion and contraction of an elastic retaining ring. Background Technology

[0002] Molds are tools used in industrial production to manufacture products. They shape materials through specific structures and methods to produce parts with specific shapes and sizes. Molds are known as the "mother of industry" and are widely used in industries such as automobiles, electronics, aerospace, military, medical, and building materials. They can efficiently and precisely mass-produce parts, significantly reducing production costs. In the process of tire use, in order to prevent the tire from slipping outward on the rim, the tire needs to be limited. The limiting part suitable for tires is the elastic retaining ring. In order to better produce elastic retaining rings, an integrated mold for expansion and contraction of elastic retaining rings is proposed.

[0003] For example, the molding die for a shaft elastic retaining ring disclosed in the authorization announcement number CN221622743U includes a rectangular chamber, in which two rectangular plates are arranged vertically, and sliding holes are opened on the rectangular plates, and a slider is slidably connected in the sliding holes;

[0004] Although it achieves the integration of two mold bodies and the injection of the raw material slurry required for the production shaft elastic retaining ring into the cavity between them, the raw material slurry for the production shaft elastic retaining ring is formed through the cavity to complete the production. The mold body is inserted between two rectangular plates by positioning blocks. When it is necessary to disassemble the mold body to replace it with a different model, the two rectangular plates can be moved relative to each other or back to back by the installation mechanism, which facilitates the quick replacement of the mold body. Through the clamping of the two rectangular plates and the insertion effect of the positioning blocks, the mold body can be stably and firmly installed in the rectangular chamber, with better stability and easier promotion and use.

[0005] However, this does not solve the problem that existing molds are not conducive to convenient elastic expansion and contraction production of elastic retaining rings, which is not conducive to increasing the roundness of the workpiece and affects the quality of elastic retaining ring production. Utility Model Content

[0006] The purpose of this utility model is to provide an integrated mold for the expansion and contraction of elastic retaining rings, so as to solve the problem mentioned in the background art that the mold is not convenient for the elastic expansion and contraction production of elastic retaining rings, which is not conducive to increasing the roundness of the workpiece and affects the quality of elastic retaining ring production.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an integrated mold for expansion and contraction of an elastic retaining ring, comprising a lower mold base and a guide post. The guide post is installed at the center of the top of the lower mold base and is fixedly connected to the lower mold base. An upper mold base is provided above the lower mold base. Inner sliders are installed on the tops of the lower mold base on both sides of the guide post and are slidably connected to the lower mold base. A bearing ring is installed on the top of the inner slider and is connected to the inner slider by bolts. The bearing ring provides sliding limit support for the inner slider. An inner module is installed on the top of the bearing ring.

[0008] Preferably, a limit ring is installed at the center of the bottom end of the upper mold base, and spring guide sleeves are installed on both sides of the bottom end of the upper mold base.

[0009] Preferably, the surface of each spring guide sleeve is fitted with a material ejection spring, and the bottom end of each spring guide sleeve is fitted with a shrinkage module.

[0010] Preferably, each of the shrinking modules is provided with a guide key on its side wall, and the guide key is slidably connected to the shrinking module.

[0011] Preferably, each of the guide keys has a mold shell installed on its sidewall, and the mold shell is fixedly connected to the guide key and the upper mold base.

[0012] Preferably, an expansion cone is installed at the center of the bottom end of the upper mold base, and the cone angle of the expansion cone is 15°.

[0013] Preferably, the inner wall of the mold shell is conical with an angle of 12°.

[0014] Preferably, the interior of the expansion cone is slidably connected to the guide post, and the inner module is slidably connected to the contraction module.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the mold not only realizes the convenient elastic expansion and contraction production of elastic retaining rings, which facilitates the increase of the roundness of the workpiece, but also improves the quality of elastic retaining ring production;

[0016] (1) Connect the device to a hydraulic press. Place the workpiece on the inner module's surface. After the workpiece is placed, the hydraulic press drives the upper mold base and spring guide sleeve to move downwards. The spring guide sleeve drives the shrinking module to move downwards. The ejector spring provides elastic support for the shrinking module. At the same time, the hydraulic press drives the mold shell to move downwards. The shrinking module will first press against the surface of the workpiece and the lower mold base. Simultaneously, the shrinking module drives the ejector spring to shrink. The mold shell has a 12° conical surface inside. As the mold shell continues to press down, the shrinking module shrinks upwards along the 12° conical surface along the guide key. The further the mold shell is pressed down, the smaller the diameter of the shrinking mold shell becomes, which allows the shrinking module to squeeze the workpiece inwards. At the same time, during the pressing process, the expanding cone drives the inner module. The workpiece is expanded and compressed outwards. Because the expanding cone has a 15° conical surface, it just enters the inner module (the inner module is an equally divided circle with a 10mm gap between modules) when pressed downwards. The further downwards the expanding cone is pressed, the more the inner module slides and expands outwards. The expanding cone contacts the inner module through the 15° conical surface. During the downward pressing process, the expanding cone pushes the inner module to expand outwards. After the workpiece has expanded and contracted, the return button is pressed to move the upper mold base upwards, and the inner module contracts. After the return stroke, the workpiece can be removed. After resetting, the ejector spring rebounds, and the ejector spring drives the contraction module to reset. The expansion and contraction are carried out simultaneously, which can ensure better roundness of the workpiece. It realizes convenient elastic coordination expansion and contraction to produce elastic retaining rings, which facilitates increasing the roundness of the workpiece and improves the quality of elastic retaining ring production. Attached Figure Description

[0017] Figure 1 This is a frontal cross-sectional view of the present invention.

[0018] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Lower mold base; 2. Mold shell; 3. Guide key; 4. Upper mold base; 5. Limiting ring; 6. Spring guide sleeve; 7. Unloading spring; 8. Shrinking module; 9. Inner module; 10. Bearing ring; 11. Inner slider; 12. Expansion cone; 13. Guide post. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] Please see Figure 1-2This utility model provides an embodiment of an elastic retaining ring expansion and contraction integrated mold, including a lower mold base 1 and a guide post 13. The guide post 13 is installed at the center of the top of the lower mold base 1 and is fixedly connected to the lower mold base 1. An upper mold base 4 is provided above the lower mold base 1. Inner sliders 11 are installed on the top of the lower mold base 1 on both sides of the guide post 13 and are slidably connected to the lower mold base 1. A bearing ring 10 is installed on the top of the inner slider 11 and is connected to the inner slider 11 by bolts. The bearing ring 10 provides sliding limit support for the inner slider 11. An inner module 9 is installed on the top of the bearing ring 10.

[0022] A limit ring 5 is installed at the center of the bottom of the upper mold base 4, and spring guide sleeves 6 are installed on both sides of the bottom of the upper mold base 4.

[0023] All surfaces of the spring guide sleeve 6 are fitted with ejector springs 7, and all bottom ends of the spring guide sleeve 6 are fitted with shrink modules 8. All side walls of the shrink modules 8 are provided with guide keys 3, and the guide keys 3 are slidably connected to the shrink modules 8.

[0024] Mold shells 2 are installed on the side walls of the guide key 3, and the mold shells 2 are fixedly connected to the guide key 3 and the mold shells 2 are fixedly connected to the upper mold base 4. An expansion cone 12 is installed at the center of the bottom end of the upper mold base 4, and the cone angle of the expansion cone 12 is 15°.

[0025] The inner wall of the mold shell 2 is conical with an angle of 12°. The interior of the expansion cone 12 is slidably connected to the guide post 13, and the inner module 9 is slidably connected to the shrinking module 8.

[0026] First, connect the device to the hydraulic press. Place the workpiece onto the inner module 9. After the workpiece is placed, turn on the hydraulic press. The hydraulic press drives the upper mold base 4 and the spring guide sleeve 6 to move downwards. The spring guide sleeve 6 drives the shrinking module 8 to move downwards. The ejector spring 7 provides elastic support for the shrinking module 8. At the same time, the hydraulic press drives the mold shell 2 to move downwards. The shrinking module 8 will first press against the surface of the workpiece and the lower mold base 1. Simultaneously, the shrinking module 8 drives the ejector spring 7 to shrink. The mold shell 2 has a 12° conical surface inside. As the mold shell 2 continues to press down, the shrinking module 8 shrinks upwards along the 12° conical surface along the guide key 3. The further the mold shell 2 is pressed down, the smaller the diameter of the shrinking mold shell 2 becomes, which allows the shrinking module 8 to squeeze the workpiece inwards. At the same time, during the pressing process, the expanding cone 12 carries... The inner module 9 expands and compresses the workpiece outward. Because the expansion cone 12 has a 15° conical surface, it just enters the inner module 9 (the inner module 9 is a circle divided into 10 equal parts, with a gap of 10mm between modules) when it is pressed down. The more it is pressed down, the more the expansion cone 12 can slide and expand the inner module 9 outward. The expansion cone 12 contacts the inner module 9 through the 15° conical surface. During the downward pressing process of the expansion cone 12, it pushes the inner module 9 to expand outward. After the workpiece has expanded and contracted, the return button is pressed to move the upper mold base 4 upward, and the inner module 9 contracts. After the return, the workpiece can be taken out. After resetting, the ejector spring 7 rebounds, and the ejector spring 7 drives the shrinking module 8 to reset. The simultaneous expansion and contraction ensures better roundness of the workpiece. It realizes convenient elastic expansion and contraction production of elastic retaining rings, which facilitates increasing the roundness of the workpiece and improves the quality of elastic retaining ring production.

[0027] Working principle: First, connect the device to the hydraulic press. Place the workpiece onto the inner module 9. After the workpiece is placed, the hydraulic press drives the upper mold base 4 and the spring guide sleeve 6 to move downwards. The spring guide sleeve 6 drives the shrinking module 8 to move downwards. The ejector spring 7 provides elastic support for the shrinking module 8. At the same time, the hydraulic press drives the mold shell 2 to move downwards. The shrinking module 8 will first press against the surface of the workpiece and the lower mold base 1. Simultaneously, the shrinking module 8 drives the ejector spring 7 to shrink. The mold shell 2 has a 12° conical surface inside. As the mold shell 2 continues to press down, the shrinking module 8 shrinks upwards along the 12° conical surface along the guide key 3. The further the mold shell 2 is pressed down, the smaller the diameter of the shrinking mold shell 2 becomes, which allows the shrinking module 8 to squeeze the workpiece inwards. At the same time, during the pressing process, the expanding cone 12... 2. The inner module 9 expands and squeezes the workpiece outward. Because the expansion cone 12 has a 15° conical surface, it just enters the inner module 9 (the inner module 9 is a circle divided into 10 equal parts, with a gap of 10mm between modules) when pressed down. The more it is pressed down, the more the expansion cone 12 can slide and expand the inner module 9 outward. The expansion cone 12 contacts the inner module 9 through the 15° conical surface. During the downward pressing process, the expansion cone 12 pushes the inner module 9 to expand outward. After the workpiece expands and contracts, press the return button to move the upper mold base 4 upward. The inner module 9 contracts. After the return, the workpiece can be taken out. After resetting, the ejector spring 7 rebounds. The ejector spring 7 drives the shrinking module 8 to reset. The simultaneous expansion and contraction can ensure better roundness of the workpiece, so as to better process the elastic retaining ring. The above is the complete usage of the elastic retaining ring expansion and contraction integrated mold.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A mold for the expansion and contraction of an elastic retaining ring, comprising a lower mold base (1) and a guide post (13), characterized in that: A guide post (13) is installed at the center of the top of the lower mold base (1), and the guide post (13) is fixedly connected to the lower mold base (1). An upper mold base (4) is provided above the lower mold base (1). Inner sliders (11) are installed on the top of the lower mold base (1) on both sides of the guide post (13), and the inner sliders (11) are slidably connected to the lower mold base (1). A bearing ring (10) is installed on the top of the inner slider (11), and the bearing ring (10) is connected to the inner slider (11) by bolts. The bearing ring (10) provides sliding limit support for the inner slider (11). An inner module (9) is installed on the top of the bearing ring (10).

2. The elastic retaining ring expansion and contraction integrated mold according to claim 1, characterized in that: A limit ring (5) is installed at the center of the bottom end of the upper mold base (4), and spring guide sleeves (6) are installed on the bottom ends of the upper mold base (4) on both sides of the limit ring (5).

3. The elastic retaining ring expansion and contraction integrated mold according to claim 2, characterized in that: The surface of each spring guide sleeve (6) is fitted with a material ejection spring (7), and the bottom end of each spring guide sleeve (6) is fitted with a shrinkage module (8).

4. The elastic retaining ring expansion and contraction integrated mold according to claim 3, characterized in that: Guide keys (3) are provided on the side walls of the shrinking module (8), and the guide keys (3) are slidably connected to the shrinking module (8).

5. The elastic retaining ring expansion and contraction integrated mold according to claim 4, characterized in that: Each guide key (3) has a mold shell (2) installed on its side wall, and the mold shell (2) is fixedly connected to the guide key (3) and the mold shell (2) is fixedly connected to the upper mold base (4).

6. The elastic retaining ring expansion and contraction integrated mold according to claim 1, characterized in that: An expansion cone (12) is installed at the center of the bottom end of the upper mold base (4), and the cone angle of the expansion cone (12) is 15°.

7. The elastic retaining ring expansion and contraction integrated mold according to claim 5, characterized in that: The inner wall of the mold shell (2) is conical with an angle of 12°.

8. The elastic retaining ring expansion and contraction integrated mold according to claim 6, characterized in that: The inside of the expansion cone (12) is slidably connected to the guide post (13), and the inner module (9) is slidably connected to the contraction module (8).

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