Anti-loose ejector plate for die casting mold

Abstract

The utility model belongs to die casting die technical field, specifically disclose a kind of anti-loose ejector plate of die casting die.The utility model includes movable die holder and fixed plate, the side fixed connection of fixed plate has a plurality of ejector pin, the side of fixed plate is equipped with a plurality of bolts, movable die holder and fixed plate between being equipped with anti-loose component, the cooperation of anti-loose lock ring and L-shaped locking block in anti-loose component, for the ejector pin fixed plate of die casting die provides double protection, this double locking structure effectively resists the impact of high-frequency vibration and alternating stress in die casting process, avoid the displacement of ejector pin fixed plate, deformation due to bolt loosening, reduce the risk of ejector pin jam, fracture, guarantee die casting demould smoothly, significantly improve mould operation stability and reliability, reduce equipment failure frequency and maintenance cost, prolong the service life of mould simultaneously, ensure die casting quality stability, improve production efficiency and enterprise economic benefit.

Description

Technical Field

[0001] This application relates to the field of die casting mold technology, and more specifically, to an anti-loosening ejector plate for a die casting mold. Background Technology

[0002] In the die-casting production process, the ejection mechanism is a crucial component. After each die-cast part is produced, the ejection mechanism must perform a reciprocating ejection and resetting motion. Because the clamping force of different parts of the die-cast part on the mold varies, each ejector pin experiences different forces during operation.

[0003] In existing die-casting molds, ejector pins are generally fixed to ejector plates, which are typically installed and fixed using bolts and locating pins. During the die-casting process, the ejection mechanism needs to frequently perform reciprocating ejection and resetting actions, and the ejector plate continuously bears alternating stress and strong vibrations during operation. Under these conditions, ordinary bolt connections are prone to loosening due to reduced friction between the threaded pairs caused by vibration. Locating pins may also wear and deform due to long-term impact, thus losing their precise positioning effect. This can lead to displacement and deformation of the ejector plate, causing ejector pin jamming or breakage, or resulting in poor demolding of die-cast parts and quality defects, seriously affecting the stability of die-casting production and product quality. Utility Model Content

[0004] To address the aforementioned issues, this application provides an anti-loosening ejector plate for a die-casting mold.

[0005] The anti-loosening ejector plate for a die-casting mold provided in this application adopts the following technical solution: An anti-loosening ejector plate for a die-casting mold includes a moving mold base and a fixed plate. Multiple ejector pins are fixedly connected to one side of the fixed plate, and multiple bolts are provided on one side of the fixed plate. An anti-loosening component is provided between the moving mold base and the fixed plate. The anti-loosening assembly includes an anti-loosening locking ring and an L-shaped locking block, which are used to lock the bolts to prevent loosening.

[0006] Furthermore, the moving mold base has multiple threaded grooves on one side, the fixed plate has multiple through holes inside, each bolt includes a threaded post, one side of each bolt is fixedly connected to the corresponding threaded post, and each threaded post passes through the corresponding through hole and is threadedly connected to the corresponding threaded groove.

[0007] Furthermore, a fixed post is rotatably connected to one side of the outer wall of each threaded post, and a sliding groove is provided on both sides of the outer wall of each fixed post. An anti-loosening locking ring is fitted on the outer wall of each fixed post, and each anti-loosening locking ring is slidably connected to the corresponding sliding groove.

[0008] Furthermore, each through hole has a fixing groove inside, and the structure of the fixing groove is adapted to the anti-loosening locking ring structure.

[0009] Furthermore, each through hole has an L-shaped groove on one side, and an L-shaped locking block is slidably connected inside each L-shaped groove. Each anti-loosening locking ring has an inclined surface at its bottom, and the L-shaped locking block is inclined on the side closest to the corresponding bolt.

[0010] Furthermore, at least one return spring is fixedly connected to one side of the inner wall of each L-shaped groove, and each return spring is fixedly connected to the corresponding L-shaped locking block.

[0011] Through the above technical solution,

[0012] Furthermore, each anti-loosening locking ring has a locking groove on one side of its outer wall, and each locking groove is inserted into one end of the corresponding L-shaped locking block.

[0013] The above technical solution provides double protection for the ejector pin fixing plate of the die-casting mold by cooperating with the anti-loosening locking ring and the L-shaped locking block in the anti-loosening component.

[0014] Furthermore, the outer wall of each anti-loosening locking ring is provided with anti-slip ridges, which are made of elastic material.

[0015] The above technical solution uses an anti-slip texture made of elastic material, which can tightly fit the inner wall of the fixing groove through elastic deformation during the bolt tightening process, increasing frictional resistance and preventing the anti-loosening locking ring from sliding. At the same time, when the L-shaped locking block is inserted into the locking groove, it provides buffering and enhances the engagement stability, further improving the anti-loosening effect.

[0016] In summary, this application includes at least one of the following beneficial technical effects: (1) This utility model provides double protection for the ejector pin fixing plate of the die casting mold by cooperating with the anti-loosening locking ring and the L-shaped locking block in the anti-loosening component. In the axial direction, the anti-loosening locking ring is embedded in the fixing groove to achieve initial positioning and restrict the axial movement of the bolt. In the circumferential direction, the L-shaped locking block is inserted into the locking groove to prevent the anti-loosening locking ring and the bolt from rotating. This double locking structure effectively resists the impact of high-frequency vibration and alternating stress during the die casting process, avoids displacement and deformation of the ejector pin fixing plate due to bolt loosening, reduces the risk of ejector pin jamming and breakage, ensures smooth demolding of die castings, significantly improves the stability and reliability of mold operation, reduces the frequency of equipment failure and maintenance costs, and extends the service life of the mold, ensures stable quality of die castings, and improves production efficiency and enterprise economic benefits. (2) The present invention is made of elastic material with anti-slip embossing, which can fit tightly against the inner wall of the fixing groove through elastic deformation during the bolt tightening process, increase frictional resistance and prevent the anti-loosening locking ring from sliding. At the same time, when the L-shaped locking block is inserted into the locking groove, it provides buffer and enhances the engagement stability, further improving the anti-loosening effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a plan view of the overall connection structure of this utility model; Figure 3 This is a schematic diagram of the overall structure of the threaded groove and through hole of this utility model; Figure 4 This is a schematic diagram of the overall bolt structure of this utility model; Figure 5 For the present utility model Figure 1 Enlarged view of the structure at point A; Figure 6 For the present utility model Figure 2 Enlarged view of the structure at point B.

[0018] Explanation of reference numerals in the attached drawings: 1. Moving mold base; 2. Fixing plate; 3. Ejector pin; 4. Bolt; 5. Threaded groove; 6. Through hole; 7. Fixing groove; 8. Slide groove; 9. Anti-loosening locking ring; 10. Inclined surface; 11. Locking groove; 12. L-shaped groove; 13. L-shaped locking block; 14. Return spring; 15. Anti-slip ridge; 16. Fixing post; 17. Threaded post. Detailed Implementation

[0019] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0020] Reference Figures 1-5 An anti-loosening ejector plate for a die-casting mold includes a moving mold base 1 and a fixed plate 2. A plurality of ejector pins 3 are fixedly connected to one side of the fixed plate 2, and a plurality of bolts 4 are provided on one side of the fixed plate 2. An anti-loosening component is provided between the moving mold base 1 and the fixed plate 2. The anti-loosening assembly includes an anti-loosening locking ring 9 and an L-shaped locking block 13, which are used to lock the bolt 4 to prevent loosening.

[0021] Reference Figures 1-5The moving mold base 1 has multiple threaded grooves 5 on one side, and the fixing plate 2 has multiple through holes 6 inside. Each bolt 4 includes a threaded post 17, and one side of each bolt 4 is fixedly connected to the corresponding threaded post 17. Each threaded post 17 passes through the corresponding through hole 6 and is threadedly connected to the corresponding threaded groove 5. A fixing post 16 is rotatably connected to one side of the outer wall of each threaded post 17. Each fixing post 16 has sliding grooves 8 on both sides of its outer wall, and each fixing post 16 has an anti-loosening locking ring 9 fitted on its outer wall. Each anti-loosening locking ring 9 is slidably connected to the corresponding sliding groove 8. A fixing groove 7 is opened inside each through hole 6. The structure of the groove 7 is adapted to the structure of the anti-loosening locking ring 9. An L-shaped groove 12 is provided on one side of each through hole 6. An L-shaped locking block 13 is slidably connected inside each L-shaped groove 12. An inclined surface 10 is provided at the bottom of each anti-loosening locking ring 9. The L-shaped locking block 13 is inclined on the side near the corresponding bolt 4. At least one return spring 14 is fixedly connected to the inner wall of one side of each L-shaped groove 12. Each return spring 14 is fixedly connected to the corresponding L-shaped locking block 13. A locking groove 11 is provided on one side of the outer wall of each anti-loosening locking ring 9. Each locking groove 11 is inserted into one end of the corresponding L-shaped locking block 13.

[0022] The anti-loosening component prevents the fixing plate 2 of the ejector pin 3 from becoming loose. Specifically, during installation, first align the locking groove 11 with the L-shaped locking block 13. Then, pass the threaded post 17 of the bolt 4 through the through hole 6 of the fixing plate 2. At this time, the anti-loosening locking ring 9 can slide freely within the groove 8 of the fixing post 16, maintaining a locked state. Next, screw the threaded post 17 into the threaded groove 5 of the moving mold base 1. During tightening, because the threaded post 17 and the fixing post 16 are rotatably connected, under the axial pressure at the top of the bolt 4, the anti-loosening locking ring 9 gradually embeds itself into the fixing groove 7 within the through hole 6 along the groove 8 until it is fully embedded in a vertical position, thus achieving initial axial positioning of the bolt 4. As the anti-loosening locking ring 9 slowly inserts, the inclined surface 10 at the bottom of the anti-loosening locking ring 9 contacts the inclined surface 10 of the L-shaped locking block 13 near the bolt 4, pushing the L-shaped locking block 13 to overcome the preload of the return spring 14, slide along the L-shaped groove 12 and stretch the return spring 14. When the anti-loosening locking ring 9 is fully inserted into the fixing groove 7, the L-shaped locking block 13 quickly rebounds under the elastic force of the return spring 14, and its end is precisely inserted into the locking groove 11 on the outer wall of the anti-loosening locking ring 9, forming a double locking structure of axial limiting and circumferential anti-rotation. In this way, during the die casting process, even if the bolt 4 is subjected to high-frequency vibration and alternating stress, the anti-loosening locking ring 9 is restricted from axial movement by the fixing groove 7, and the L-shaped locking block 13 prevents its circumferential rotation, thereby effectively suppressing the loosening of the bolt 4, ensuring the reliable connection between the fixing plate 2 and the moving mold base 1, and ensuring the stable operation of the ejector pin 3. During disassembly, by applying external force to pull the L-shaped locking block 13, it is disengaged from the locking groove 11, releasing the constraint on the anti-loosening locking ring 9, allowing it to rotate smoothly and unscrew the bolt 4, thus completing the disassembly operation.

[0023] The anti-loosening locking ring 9 and the L-shaped locking block 13 in the anti-loosening assembly provide double protection for the ejector pin 3 fixing plate 2 of the die-casting mold. In the axial direction, the anti-loosening locking ring 9 is embedded in the fixing groove 7 to achieve initial positioning and restrict the axial movement of the bolt 4. In the circumferential direction, the L-shaped locking block 13 is inserted into the locking groove 11 to prevent the anti-loosening locking ring 9 and the bolt 4 from rotating. This double locking structure effectively resists the impact of high-frequency vibration and alternating stress during the die-casting process, avoids displacement and deformation of the ejector pin 3 fixing plate 2 due to loosening of the bolt 4, reduces the risk of ejector pin 3 jamming and breakage, ensures smooth demolding of die-cast parts, significantly improves the stability and reliability of mold operation, reduces the frequency of equipment failure and maintenance costs, extends the service life of the mold, ensures stable quality of die-cast parts, and improves production efficiency and enterprise economic benefits.

[0024] Reference Figures 1-5 Each anti-loosening locking ring 9 has anti-slip ridges 15 on its outer wall, which are made of elastic material.

[0025] The anti-slip ridges 15 are made of elastic material, which can fit tightly against the inner wall of the fixing groove 7 through elastic deformation during the tightening of the bolt 4, increasing the frictional resistance and preventing the anti-loosening locking ring 9 from sliding. At the same time, when the L-shaped locking block 13 is inserted into the locking groove 11, it provides buffering and enhances the engagement stability, further improving the anti-loosening effect.

[0026] Working principle: During installation, first align the locking groove 11 with the L-shaped locking block 13. Then, pass the threaded post 17 of the bolt 4 through the through hole 6 of the fixing plate 2. At this time, the anti-loosening locking ring 9 can slide freely in the groove 8 of the fixing post 16, maintaining a locked state. Subsequently, screw the threaded post 17 into the threaded groove 5 of the moving mold base 1. During the tightening process, since the threaded post 17 and the fixing post 16 are rotatably connected, under the axial pressure of the top of the bolt 4, the anti-loosening locking ring 9 gradually embeds into the fixing groove 7 in the through hole 6 along the groove 8 until it is fully embedded in a vertical state, thereby achieving the initial axial limit of the bolt 4. As the anti-loosening locking ring 9 slowly inserts, the inclined surface 10 at the bottom of the anti-loosening locking ring 9 contacts the inclined surface 10 of the L-shaped locking block 13 near the bolt 4, pushing the L-shaped locking block 13 to overcome the preload of the return spring 14, slide along the L-shaped groove 12 and stretch the return spring 14. When the anti-loosening locking ring 9 is fully inserted into the fixing groove 7, the L-shaped locking block 13 quickly rebounds under the elastic force of the return spring 14, and its end is precisely inserted into the locking groove 11 on the outer wall of the anti-loosening locking ring 9, forming a double locking structure of axial limiting and circumferential anti-rotation. In this way, during the die casting process, even if the bolt 4 is subjected to high-frequency vibration and alternating stress, the anti-loosening locking ring 9 is restricted from axial movement by the fixing groove 7, and the L-shaped locking block 13 prevents its circumferential rotation, thereby effectively suppressing the loosening of the bolt 4, ensuring the reliable connection between the fixing plate 2 and the moving mold base 1, and ensuring the stable operation of the ejector pin 3. During disassembly, by applying external force to pull the L-shaped locking block 13, it is disengaged from the locking groove 11, releasing the constraint on the anti-loosening locking ring 9, allowing it to rotate smoothly and unscrew the bolt 4, thus completing the disassembly operation.

[0027] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An anti-loosening ejector plate for a die-casting mold, comprising a moving mold base (1) and a fixed plate (2), characterized in that, A plurality of ejector pins (3) are fixedly connected to one side of the fixed plate (2), and a plurality of bolts (4) are provided on one side of the fixed plate (2). An anti-loosening component is provided between the moving mold base (1) and the fixed plate (2). The anti-loosening component includes an anti-loosening locking ring (9) and an L-shaped locking block (13), which are used to lock the bolt (4) to prevent loosening.

2. The anti-loosening ejector plate of a die-casting mold according to claim 1, characterized in that: The moving mold base (1) has multiple threaded grooves (5) on one side, and the fixed plate (2) has multiple through holes (6) inside. Each bolt (4) includes a threaded post (17). One side of each bolt (4) is fixedly connected to the corresponding threaded post (17). Each threaded post (17) passes through the corresponding through hole (6) and is threadedly connected to the corresponding threaded groove (5).

3. The anti-loosening ejector plate of a die-casting mold according to claim 2, characterized in that: Each of the threaded posts (17) has a fixed post (16) rotatably connected to one side of its outer wall. Each fixed post (16) has a sliding groove (8) on both sides of its outer wall. Each fixed post (16) has an anti-loosening locking ring (9) fitted on its outer wall. Each anti-loosening locking ring (9) is slidably connected to the corresponding sliding groove (8).

4. The anti-loosening ejector plate of a die-casting mold according to claim 3, characterized in that: Each of the through holes (6) has a fixing groove (7) inside, and the structure of the fixing groove (7) is adapted to the structure of the anti-loosening locking ring (9).

5. The anti-loosening ejector plate of a die-casting mold according to claim 4, characterized in that: Each of the through holes (6) has an L-shaped groove (12) on one side, and an L-shaped locking block (13) is slidably connected inside each L-shaped groove (12). Each of the anti-loosening locking rings (9) has an inclined surface (10) at the bottom, and the L-shaped locking block (13) is inclined on the side close to the corresponding bolt (4).

6. The anti-loosening ejector plate of a die-casting mold according to claim 5, characterized in that: At least one reset spring (14) is fixedly connected to one side inner wall of each L-shaped groove (12), and each reset spring (14) is fixedly connected to the corresponding L-shaped locking block (13).

7. The anti-loosening ejector plate of a die-casting mold according to claim 6, characterized in that: Each of the anti-loosening locking rings (9) has a locking groove (11) on one side of its outer wall, and each locking groove (11) is inserted into one end of the corresponding L-shaped locking block (13).

8. The anti-loosening ejector plate of a die-casting mold according to claim 1, characterized in that: Each of the anti-loosening locking rings (9) has anti-slip ridges (15) on its outer wall, the anti-slip ridges (15) being made of an elastic material.

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