Inner pulling structure with sliding blocks on two sides

By designing an internal pulling structure on both sides and using inclined guide rods to drive the advance and retreat of the conductive structure and the tooth joint structure, the problems of uneven force, severe wear and product deformation of the thimble during the zinc alloy die-casting process of traditional ejection devices are solved, and efficient ejection and improvement of finished product yield is achieved.

CN119703003APending Publication Date: 2025-03-28DONGGUAN WANGJIA HARDWARE PROD CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202411936505.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

During the zinc alloy die casting process, traditional ejectors have problems such as uneven force, severe wear, difficulty in mold removal and product deformation and damage, which is difficult to ensure the yield of the finished product and the service life of the mold.

Method used

A two-side slider internal pulling structure is designed, including an inclined guide rod, a conductive structure and a tooth joint structure. The inclined movement of the inclined guide rod drives the advance and retreat of the conductive structure and the tooth joint structure to achieve efficient ejection of the finished product.

Benefits of technology

This structure reduces the wear of the thimble and the deformation of the product by reducing the effect of external forces on the finished product, improves the yield rate of the finished product, and reduces the cost of equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119703003A_ABST
    Figure CN119703003A_ABST
Patent Text Reader

Abstract

The inner pulling structure comprises an inclined guide rod, a conduction structure and a tooth connection structure, the tooth connection structure is fixed to the front end of the conduction structure, die casting of a finished product is completed at the end of the conduction structure, and the inclined guide rod is inserted into the conduction structure in a penetrating mode to control advancing and retreating of the conduction structure and the tooth connection structure. The tooth connection structure comprises a pushing block, a first rotating rod and a second rotating rod, a protruding block is arranged at the adjacent connection position of the pushing block and the first rotating rod, the first bevel edge of the protruding block is close to the second bevel edge of the first transmission block, the first rotating rod is fixed to the rotating shaft, and when the pushing block advances and retreats, the first rotating rod can be driven to rotate; the first rotating rod is connected with the second rotating rod in a clamping tooth mode, the first rotating rod rotates to drive the second rotating rod to rotate, the second rotating rod is driven by the first rotating rod to be separated from a finished product, and due to the fact that the second rotating rod rotates inwards and has no external force on the finished product, the yield of the finished product is guaranteed; the method has the characteristics of improving the yield of finished products and the like.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the field of ejector pins, and in particular to an inner-drawing structure of sliders on both sides. Background Art

[0002] In the zinc alloy die-casting process, the mold ejector plays a vital role. When the plastic is melted and injected into the mold cavity and cooled and solidified, the mold ejector is responsible for ejecting the molded plastic product from the mold. In this process, the mold ejector needs to ensure the integrity and accuracy of the product to prevent the product from being damaged or deformed during the ejection process. However, there are some shortcomings in the traditional ejector device in mold production, which are mainly reflected in the following aspects:

[0003] In the zinc alloy die-casting process, if the ejection system of the mold is not designed properly or the ejection pressure of the die-casting machine is uneven, the ejector pin will be unevenly stressed when ejecting the product, causing breakage or bending. As the number of uses increases, the friction between the ejector pin and the mold will gradually increase, causing serious wear of the ejector pin. If the severely worn ejector pin is not replaced in time, it will affect the demoulding effect of the product and the service life of the mold. If the design of the inclined ejector mechanism fails to fully consider the structure and demoulding requirements of the product, it may also cause demoulding difficulties or product damage. In addition, due to the problem of thin product walls in the zinc alloy die-casting process, forced demoulding or improper demoulding methods can easily cause product deformation or even damage during the demoulding process.

[0004] The inclined ejector structure can be pushed forward at a certain angle to the parting surface. This oblique movement can more effectively eject products with internal barbs or complex structures, ensuring that the products can be smoothly ejected from the mold to avoid damage or deformation. Therefore, how to design an inclined ejector structure with high yield and high ejection efficiency has become an urgent problem that technicians in this field need to solve. Summary of the invention

[0005] The object of the present invention is to provide a double-sided slider inner-drawing structure to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A two-side slider inner-drawing structure is provided, comprising an inclined guide rod, a conducting structure and a tooth connection structure, wherein the tooth connection structure is fixed at the front end of the conducting structure, and the finished product is die-cast at the end of the conducting structure. The inclined guide rod is inserted into the conducting structure to control the advance and retreat of the conducting structure and the tooth connection structure, and the tooth connection structure comprises a propulsion block, a first rotating rod and a second rotating rod. A protrusion is provided at the adjacent position of the propulsion block and the first rotating rod, and the first oblique side of the protrusion is close to the second oblique side of the first rotating rod. The first rotating rod is fixed on the rotating shaft, and the first rotating rod can be driven to rotate when the propulsion block advances and retreats. The first rotating rod is connected to the second rotating rod with a clamping tooth, and the rotation of the first rotating rod drives the rotation of the second rotating rod accordingly, and the second rotating rod is separated from the finished product under the drive of the first rotating rod.

[0008] Furthermore, the conduction structure includes a first conduction block and a second conduction block, the first conduction block and the second conduction block are slidably connected by bolts, and the first conduction block is provided with an oblique insertion hole adapted to the oblique guide rod.

[0009] Furthermore, the first conducting block is provided with a first clamping groove, the pushing block is provided with a groove corresponding thereto, and the pushing block passes through the second conducting block and is connected to the first clamping groove.

[0010] Furthermore, the tooth connection structure includes a main frame, which wraps the first rotating rod and the second rotating rod in the middle, and the main frame is fixed to the second conductive block, and the second conductive block is provided with a second clamping groove corresponding thereto.

[0011] Furthermore, the first rotating rod is provided with a first tooth, and the second rotating rod is provided with a second tooth corresponding thereto, and when the first tooth rotates, the second tooth rotates in the opposite direction.

[0012] Furthermore, the first teeth and the second teeth are both triangular convex teeth arranged continuously, and the convex teeth of the first teeth and the second teeth are snap-fitted in sequence.

[0013] Furthermore, the first teeth are convex arc portions arranged continuously, and the second teeth are concave arc portions arranged continuously corresponding thereto, and the convex arc portions of the first teeth and the concave arc portions of the second teeth are snap-fitted and fitted in sequence.

[0014] Furthermore, the second rotating rod is provided with a push rod, and the push rod can rotate along with the rotation of the second tooth.

[0015] Furthermore, when the first tooth is not in contact with the second tooth, the outer end of the push rod is supported on the inner wall of the finished product.

[0016] Furthermore, when the first tooth drives the second tooth to rotate, the push rod rotates inwardly, and the push rod is separated from the inner wall of the finished product.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention provides a double-sided sliding block inner-drawing structure, wherein the inclined guide rod is inserted into the first conducting block, and because of the inclined angle, when the inclined guide rod moves up and down, the first conducting block is also moved laterally, and the pushing block is fixed to the first conducting block. When the first conducting block moves, the pushing block is pushed to perform an ejection movement, and a protrusion is arranged at the front end of the pushing block, and the first oblique sides on both sides of the protrusion are in conflict with the second oblique sides of the first rotating rod, thereby driving the first rotating rod to rotate around the rotating shaft, and a first tooth is arranged at the front end of the first rotating shaft, and the first tooth is tightly engaged with the second tooth of the second rotating rod, and the rotation of the first tooth drives the second tooth to rotate, and after the second rotating rod rotates inwardly, the ejector rod is separated from the finished product, thereby completing the ejection effect and taking out the finished product, and since the ejector rod of the second rotating rod rotates inwardly, there is almost no external force acting on the finished product, thereby ensuring the yield rate of the finished product, and the present invention has the characteristics of reducing equipment cost and improving the yield rate of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural diagram of the inner-drawing structure of the sliders on both sides of the present invention;

[0020] Figure 2 It is a top view of the inner-drawing structure of the sliders on both sides of the present invention;

[0021] Figure 3 It is a cross-sectional view of the inner-drawing structure of the sliders on both sides of the present invention;

[0022] Figure 4 This is an internal structural diagram of the inner drawer structure of the sliders on both sides of the present invention;

[0023] Figure 5 It is a structural diagram of the push block of the inner-drawing structure of the sliders on both sides of the present invention;

[0024] Figure 6 This is a structural diagram of the clamping blocks of the inner draw structure of the sliders on both sides of the present invention;

[0025] Figure 7 It is a cross-sectional view of the conductive structure of the inner pumping structure of the sliders on both sides of the present invention;

[0026] The markings of the components in the accompanying drawings are as follows: 1. inclined guide rod; 2. conduction structure; 21. first conduction block; 211. first clamping groove; 212. slide groove; 22. second conduction block; 221. second clamping groove; 222. bolt; 3. tooth connection structure; 31. main frame; 32. first rotating rod; 321. first tooth; 322. second bevel; 33. rotating shaft; 34. pushing block; 341. groove; 342. protrusion; 343. first bevel; 35. second rotating rod; 351. push rod; 352. second tooth; 4. finished product. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figures 1 to 7 , a double-sided slider inner-drawing structure is provided, comprising an inclined guide rod 1, a conducting structure 2 and a gear connection structure 3, wherein the gear connection structure 3 is fixed at the front end of the conducting structure 2, and the finished product 4 is die-cast at the end of the conducting structure 2, and the inclined guide rod 1 is inserted into the conducting structure 2 to control the advance and retreat of the conducting structure 2 and the gear connection structure 3, and the gear connection structure 3 comprises a propulsion block 34, a first rotating rod 32 and a second rotating rod 35, wherein a protrusion 342 is provided at a position adjacent to the propulsion block 34 and the first rotating rod 32, and a first oblique side 343 of the protrusion 342 is close to a second oblique side 322 of the first rotating rod 32, and the first rotating rod 32 is fixed on the rotating shaft 33, and when the propulsion block 34 advances and retreats, the first rotating rod 32 can be driven to rotate, and the first rotating rod 32 is connected with the second rotating rod 35 by a tooth connection, and the rotation of the first rotating rod 32 drives the rotation of the second rotating rod 35 accordingly, and the second rotating rod 35 is separated from the finished product 4 under the drive of the first rotating rod 32.

[0029] The conductive structure 2 includes a first conductive block 21 and a second conductive block 22, the first conductive block 21 and the second conductive block 22 are slidably connected by bolts 222, and the first conductive block 21 is provided with an oblique insertion hole adapted to the oblique guide rod 1. The first conductive block 21 is provided with a first clamping groove 211, and the push block 34 is provided with a groove 341 corresponding thereto, and the push block 34 passes through the second conductive block 22 and is connected to the first clamping groove 211. The tooth connection structure 3 includes a main frame 31, the main frame 31 wraps the first rotating rod 32 and the second rotating rod 35 in the middle, the main frame 31 is fixed to the second conductive block 22, the second conductive block 22 is provided with a second clamping groove 221 corresponding thereto, the main frame 31 wraps the outer side of the push block 34 and is fixed to the second conductive block 22, when the push block 34 moves, the main frame 31 is fixed, the rotating shaft 33 is also fixed on the main frame 31, and the first rotating rod 32 rotates relative to the rotating shaft 33.

[0030] See also Figure 6 The first rotating rod 32 is provided with a first tooth 321, and the second rotating rod 35 is provided with a second tooth 352 corresponding thereto. When the first tooth 321 rotates, the second tooth 352 rotates in the opposite direction. There are many forms of teeth, as long as they can complete the fitting rotation. The present invention provides the following two preferred embodiments:

[0031] First embodiment: the first teeth 321 and the second teeth 352 are both triangular convex teeth arranged continuously, and the convex teeth of the first teeth 321 and the second teeth 352 are snap-fitted with each other in sequence.

[0032] Second embodiment: the first teeth 321 are convex arc portions arranged continuously, and the second teeth 352 are concave arc portions arranged continuously corresponding thereto. The convex arc portions of the first teeth 321 and the concave arc portions of the second teeth 352 are snap-fitted and fitted in sequence.

[0033] See also Figure 4 The second rotating rod 35 is provided with a push rod 351, and the push rod 351 can rotate along with the rotation of the second tooth 352. When the first tooth 321 and the second tooth 352 are not in contact, the outer end of the push rod 351 is supported on the inner wall of the finished product 4. When the second tooth 352 drives the first tooth 321 to rotate, the push rod 351 rotates inward, and the push rod 351 is separated from the inner wall of the finished product 4.

[0034] See also Figure 7 The first conduction block 21 is connected to the second conduction block 22 by a bolt 222. The first conduction block 21 is provided with a slide groove 212, and the bolt 222 is inserted into the slide groove 212. When the first conduction block 21 moves, the bolt 222 slides in the slide groove 212, and the bolt 222 is consistent with the slide groove 212, ensuring that the propulsion direction of the propulsion block 34 remains consistent, thereby improving the yield rate of the finished product 4.

[0035] Specifically, after the die-cast product 4 is completed, the inclined guide rod 1 moves downward. Due to the inclined socket, the first conduction block 21 is moved laterally to the left by the inclined guide rod 1, and the push block 34 also moves to the left relative to the main frame 31. Since the first rotating rod 32 is fixed to the main frame 31 through the rotating shaft 33, the first bevel 343 of the protrusion 342 of the push block 34 contacts the second bevel 322 of the first rotating rod 32, forcing the first rotating rod 32 to rotate outward through the rotating shaft 33, and the first tooth 321 of the first rotating rod 32 is tightly fitted with the second tooth 352 of the second rotating rod 35. The rotation of the first rotating rod 32 also causes the second rotating rod 35 to rotate inward, and the ejector rod 351 supporting the finished product 4 also rotates inward, causing the ejector rod 351 to separate from the finished product 4, completing the ejection action.

[0036] The present invention provides a two-side slider inner-drawing structure, wherein the oblique guide rod 1 is inserted into the first conduction block 21. Since the oblique guide rod 1 is at an inclined angle, when the oblique guide rod 1 moves up and down, the first conduction block 21 is also moved laterally. The push block 34 is fixed to the first conduction block 21. When the first conduction block 21 moves, the push block 34 is pushed to perform an ejection movement. A protrusion 342 is provided at the front end of the push block 34. The first oblique edges 343 on both sides of the protrusion 342 are in conflict with the second oblique edges 322 of the first rotating rod 32, thereby driving the first rotating rod 32 to rotate around The rotating shaft 33 rotates, and a first tooth 321 is provided at the front end of the first rotating shaft 33. The first tooth 321 is tightly engaged with the second tooth 352 of the second rotating rod 35. The rotation of the first tooth 321 drives the second tooth 352 to rotate. After the second rotating rod 35 rotates inwardly, the ejector rod 351 is separated from the finished product 4, thereby completing the ejection effect and taking out the finished product 4. Since the second transmission shaft rotates inwardly, there is almost no external force on the finished product 4, thereby ensuring the yield of the finished product 4. The present invention has the characteristics of reducing equipment cost and improving the yield of the finished product 4.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-sided slider inner-drawing structure, comprising an inclined guide rod (1), a conducting structure (2) and a gear connection structure (3), characterized in that: The toothed structure (3) is fixed at the front end of the conductive structure (2), and the finished product (4) is die-cast at the end of the conductive structure (2). The oblique guide rod (1) is inserted into the conductive structure (2) to control the advance and retreat of the conductive structure (2) and the toothed structure (3). The toothed structure (3) includes a propulsion block (34), a first rotating rod (32) and a second rotating rod (35). A protrusion (342) is provided at the joint between the propulsion block (34) and the first rotating rod (32). The protrusion (342) is A bevel (343) is close to the second bevel (322) of the first rotating rod (32). The first rotating rod (32) is fixed on the rotating shaft (33). When the pushing block (34) moves forward or backward, it can drive the first rotating rod (32) to rotate. The first rotating rod (32) and the second rotating rod (35) are connected by a tooth. The rotation of the first rotating rod (32) drives the rotation of the second rotating rod (35). The second rotating rod (35) is separated from the finished product (4) under the drive of the first rotating rod (32).

2. The inner-drawing structure of the two-side sliders according to claim 1, characterized in that: The conduction structure (2) comprises a first conduction block (21) and a second conduction block (22); the first conduction block (21) and the second conduction block (22) are slidably connected via bolts (222); the first conduction block (21) is provided with an oblique insertion hole adapted to the oblique guide rod (1).

3. The double-side slider inner-drawing structure according to claim 2, characterized in that: The first conducting block (21) is provided with a first clamping groove (211), the pushing block (34) is provided with a groove (341) corresponding thereto, and the pushing block (34) passes through the second conducting block (22) and is connected to the first clamping groove (211).

4. The double-side slider inner-drawing structure according to claim 3, characterized in that: The tooth connection structure (3) comprises a main frame (31), wherein the main frame (31) wraps the first rotating rod (32) and the second rotating rod (35) in the middle, and the main frame (31) is fixed to the second conductive block (22), and the second conductive block (22) is provided with a second clamping groove (221) corresponding thereto.

5. The double-side slider inner-drawing structure according to claim 1, characterized in that: The first rotating rod (32) is provided with a first tooth (321), and the second rotating rod (35) is provided with a second tooth (352) corresponding thereto. When the first tooth (321) rotates, the second tooth (352) rotates in the opposite direction.

6. The double-side slider inner-drawing structure according to claim 5, characterized in that: The first teeth (321) and the second teeth (352) are both triangular convex teeth arranged continuously, and the convex teeth of the first teeth (321) and the second teeth (352) are snap-fitted and fitted in sequence.

7. The double-side slider inner-drawing structure according to claim 5, characterized in that: The first teeth (321) are convex arc portions arranged continuously, and the second teeth (352) are concave arc portions arranged continuously corresponding thereto. The convex arc portions of the first teeth (321) and the concave arc portions of the second teeth (352) are snap-fitted and fitted in sequence.

8. The double-side slider inner-drawing structure according to claim 1, characterized in that: The second rotating rod (35) is provided with a top rod (351), and the top rod (351) can rotate along with the rotation of the second tooth (352).

9. The double-side slider inner-drawing structure according to claim 8, characterized in that: When the first teeth (321) and the second teeth (352) are not in contact, the outer end of the push rod (351) is supported on the inner wall of the finished product (4).

10. The double-side slider inner-drawing structure according to claim 8, characterized in that: When the first tooth (321) drives the second tooth (352) to rotate, the push rod (351) rotates inwardly, and the push rod (351) is separated from the inner wall of the finished product (4).