Inclined guide ejector pin inner pulling structure
By designing an inclined guide pin with an internal pulling structure, the problem of traditional ejector pins being unable to adapt to complex product structures is solved, achieving non-destructive demolding and efficient production, reducing maintenance costs, and improving yield and production efficiency.
Patent Information
- Application Number
- CN202520132220.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Traditional ejector pin structures are difficult to adapt to products with narrow holes, grooves or other complex structures inside the mold, resulting in damage or incomplete demolding during the demolding process. Furthermore, the repair costs are high, the repair time is long, and production efficiency is affected.
Design an inclined guide pin internal extraction structure, which uses an inclined guide rod to drive the inclined movement of the push block and the sliding block. Through the cooperation of the slide groove and the insert block, the finished product can be demolded without external force. The rotation of the sliding block and the side slide block controls the rotation state of the ejector pin, so as to achieve smooth release of the finished product.
It improved the yield rate of finished products, reduced the cost of equipment maintenance and replacement parts, increased production efficiency, and adapted to the needs of products of different sizes and shapes.
Smart Images
Figure CN223701561U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a ejector pin field especially relates to a slant guide ejector pin inner extraction structure. BACKGROUND
[0002] In the die casting process, the mold ejector pin plays a crucial role. When the plastic is injected into the mold cavity after melting and cools and solidifies, the mold ejector pin is responsible for ejecting the molded plastic product from the mold. During this process, the mold ejector pin needs to ensure the integrity and precision of the product, avoiding damage or deformation of the product during ejection. But the traditional ejection device has some shortcomings in mold production, and some traditional ejector pin structures may not be able to adapt to products with long holes, grooves or other complex structures inside the mold. This limitation may cause damage to the product during demolding or incomplete demolding, and when the ejector pin structure fails or is damaged, it may require longer repair time and higher repair cost, and replacement of parts and debugging will seriously delay the construction period, reducing the production efficiency.
[0003] And the inner extraction type mold ejector pin is particularly suitable for processing products with long holes, grooves or other complex structures inside the mold. This design makes the demolding process smoother, reducing the damage that the product may suffer due to complex structure during demolding, and the inner extraction type mold ejector pin can usually be customized and adjusted according to specific needs to adapt to products of different sizes, shapes and materials. Therefore, how to design an inner extraction type ejector pin structure with high yield and high ejection efficiency has become a problem that needs to be solved by the technical personnel in the field. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a slant guide ejector pin inner extraction structure to solve the problems raised in the background art.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0006] A slant guide ejector pin inner extraction structure is provided, which includes a pushing structure, a die casting structure and a finished product. The pushing structure supports the finished product during die casting and is separated from the finished product to complete demolding after die casting is completed. The pushing structure includes a sliding block, a side sliding block, a pushing block and a slant guide rod. The side sliding block is provided with a top rod connected with the perforation of the finished product on the outer side. The inner side of the side sliding block is provided with an insertion block slidingly connected in the sliding groove on the outer side of the sliding block. The sliding groove has an inclination angle. The side sliding block controls the connection state of the top rod and the perforation of the finished product by sliding in the sliding groove. The rear end of the sliding block is fixed with the pushing block. The top of the pushing block is provided with a slant insertion hole. The slant guide rod can be inserted into the slant insertion hole and control the movement of the pushing block and the sliding block.
[0007] Further, set the sliding block and the finished product connecting end as A1 end, the sliding block and the advancing block connecting end as B1 end, and the side sliding block and the sliding block corresponding two ends as A2 end and B2 end, and the side sliding block and the sliding block corresponding two ends as A2 end and B2 end.
[0008] Further, the sliding groove is internally provided with a flange, and the plug is provided with a corresponding recess, and the flange and the recess are tightly fitted.
[0009] Further, the sliding groove of the sliding block is inwardly inclined from A1 end to B1 end, and the plug of the side sliding block is outwardly inclined from A2 end to B2 end.
[0010] Further, the sliding groove of the sliding block is outwardly inclined from A1 end to B1 end, and the plug of the side sliding block is inwardly inclined from A2 end to B2 end.
[0011] Further, the finished product and the sliding block connecting part are provided with a clamping interface, and the sliding block is provided with a clamping slot matched with the clamping interface.
[0012] Further, the sliding block is provided with a sliding groove on both sides, and the two side sliding blocks are connected with the two sliding grooves through plugs.
[0013] Further, the finished product and the side sliding block connecting part are provided with corresponding two perforations, and the top rods of the two side sliding blocks can be respectively inserted into the two perforations.
[0014] Further, the sliding block and the advancing block connecting part are provided with a protruding block, and the protruding block is embedded in the advancing cavity of the advancing block.
[0015] Further, the sliding block is provided with a fixing seat on both sides, and the inner side of the fixing seat is flush with and fitted with the outer side of the side sliding block.
[0016] Compared with the prior art, the utility model has the advantages of:
[0017] The utility model provides a slanting guide thimble inner extraction structure, because the slanting insertion hole has an inclination angle, when the slanting guide rod moves up and down, the advancing block also moves transversely, the front end of the advancing block is fixed with the sliding block, the both sides of the sliding block are provided with sliding grooves, the side sliding block is connected in the sliding groove through the plug, the sliding groove and the plug are all inclined, and the plug and the sliding groove are tightly fitted, therefore, when the sliding block displaces on the side sliding block, the sliding block also drives the side sliding block to rotate inwardly or outwardly, the top rod of the side sliding block is inserted in the finished product and matched with the perforation on both sides of the finished product, when the top rod rotates inwardly, the finished product is separated, when the top rod rotates outwardly, the top rod is inserted in the perforation and supports the finished product, therefore, as long as the up and down movement of the slanting guide rod is controlled, the demolding process of the finished product can be controlled, and there is almost no external force on the finished product in the demolding process, thereby guaranteeing the good product rate of the finished product, the utility model has the characteristics of reducing equipment cost and improving the good product rate of the finished product. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the perspective view of the inclined guide ejector pin inner extraction structure of the utility model;
[0019] Figure 2 It is the finished product structure view of the inclined guide ejector pin inner extraction structure of the utility model;
[0020] Figure 3 It is the sliding block structure view of the inclined guide ejector pin inner extraction structure of the utility model;
[0021] Figure 4 It is the side sliding block structure view of the inclined guide ejector pin inner extraction structure of the utility model;
[0022] Figure 5 It is the pushing block structure view of the inclined guide ejector pin inner extraction structure of the utility model;
[0023] Figure 6 It is the section view of the inclined guide ejector pin inner extraction structure of the utility model;
[0024] The marks of various components in the drawing are as follows: 1, die casting channel; 2, finished product; 21, clamping interface; 22, perforation; 3, sliding block; 31, clamping groove; 32, sliding slot; 33, protruding block; 34, flange; 4, side sliding block; 41, top rod; 42, insertion block; 43, recess; 5, pushing block; 51, inclined insertion hole; 52, pushing cavity; 6, inclined guide rod; 7, fixed seat. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0026] Please refer to Figures 1 to 6 , provide a kind of inclined guide ejector pin inner extraction structure, including pushing structure, die casting structure and finished product 2, the pushing structure supports finished product 2 when die casting, and it is separated from finished product 2 after die casting is completed to complete demolding, the pushing structure includes: sliding block 3, side sliding block 4, pushing block 5 and inclined guide rod 6, the outer side of side sliding block 4 is equipped with top rod 41 and is connected with the perforation 22 of finished product 2, the inner side of side sliding block 4 is equipped with insertion block 42 and is slidably connected in the sliding slot 32 of the outer side of sliding block 3, the sliding slot 32 has inclination angle, and side sliding block 4 controls the connection state of top rod 41 and finished product 2 perforation 22 by sliding in sliding slot 32, the rear end of sliding block 3 is fixed with pushing block 5, the top of pushing block 5 is equipped with inclined insertion hole 51, and inclined guide rod 6 can be inserted into inclined insertion hole 51 and control pushing block 5 and sliding block 3 move.
[0027] Furthermore, the connection end between the sliding block 3 and the finished product 2 is designated as end A1, and the connection end between the sliding block 3 and the push block 5 is designated as end B1. Similarly, the two ends of the side slider 4 corresponding to the sliding block 3 are designated as ends A2 and B2, respectively. The insert 42 of the side slider 4 matches the groove 32. The groove 32 is provided with a flange 34 inside, and the insert 42 is provided with a corresponding recess 43. The flange 34 and the recess 43 fit tightly together.
[0028] The following provides two embodiments of the connection structure between the slider 3 and the side slider 4. Please refer to them. Figure 3 and Figure 4 The figure only shows the structure of the sliding block 3 and the side slider 4 in the second embodiment:
[0029] In the first specific case, the sliding groove 32 of the sliding block 3 is inclined inward from end A1 to end B1, and the insert block 42 of the side slider 4 is inclined outward from end A2 to end B2. The sliding block 3 is in front of the side slider 4. When end B1 of the sliding block 3 slides from end A2 to end B2 of the side slider 4, the sliding groove 32 of the sliding block 3 presses the side slider 4 outward, and the push rod 41 of the side slider 4 rotates outward. After the die casting is completed, the sliding block 3 slides out from end A2. The side wall of the sliding groove 32 of the sliding block 3 closes the side slider 4 inward, and the push rod 41 of the side slider 4 rotates inward. The push rod 41 is pulled out from the through hole 22, completing the separation of the mold from the finished product 2.
[0030] In the second specific configuration, the sliding groove 32 of the sliding block 3 slopes outward from end A1 to end B1, and the insert block 42 of the side slider 4 slopes inward from end A2 to end B2. The sliding block 3 is behind the side slider 4. When end A1 of the sliding block 3 slides from end B2 to end A2 of the side slider 4, the sliding groove 32 of the sliding block 3 presses the side slider 4 outward, and the push rod 41 of the side slider 4 rotates outward. After the die casting is completed, the sliding block 3 slides out from end B2. The side wall of the sliding groove 32 of the sliding block 3 closes the side slider 4 inward, and the push rod 41 of the side slider 4 rotates inward. The push rod 41 is pulled out from the through hole 22, completing the separation of the mold from the finished product 2.
[0031] Please see Figure 3 The finished product 2 and the sliding block 3 are connected by a locking interface 21, and the sliding block 3 is provided with a locking groove 31 that matches it. When the sliding block 3 slides to the top of the side slider 4, the die casting begins. After the die casting is completed, the finished product 2 forms a locking interface 21 at the locking groove 31. The sliding block 3 is pulled out from the locking interface 21 to complete the separation. The sliding block 3 can be die-cast with the corresponding finished product 2 in the corresponding mold shape. When die-casting different finished products 2, only the corresponding sliding block 3 needs to be replaced.
[0032] Specifically, in order to increase the connection stability between the product 2 and the structure requirement of the special product 2, the sliding block 3 is provided with a sliding groove 32 on both sides, the two side sliding blocks 4 are connected with the two sliding grooves 32 through the insertion blocks 42, and the top rods 41 of the two side sliding blocks 4 can rotate inwards or outwards under the action of the sliding block 3. Correspondingly, the product 2 is provided with two corresponding perforations 22 at the connection position of the product 2 and the side sliding block 4, and the top rods 41 of the two side sliding blocks 4 can be inserted into the two perforations 22 respectively.
[0033] Please refer to Figure 3 and Figure 5 Specifically, the sliding block 3 is provided with a convex block 33 at the connection position of the sliding block 3 and the pushing block 5, the convex block 33 is embedded in the pushing cavity 52 of the pushing block 5, in the pushing process, the inclined guide rod 6 is inserted into the inclined insertion hole 51, the pushing block 5 drives the sliding block 3 through the convex block 33 to push the sliding block 3 forward, when the inclined guide rod 6 is extracted from the inclined insertion hole 51, the pushing block 5 can extract the sliding block 3 through the convex block 33, because the pushing block 5 and the sliding block 3 are respectively arranged, when different products 2 are pressure cast, the pushing block 5 does not need to be replaced, and only the corresponding sliding block 3 needs to be replaced, the sliding groove 32 and the convex block 33 of each different sliding block 3 are respectively matched with the side sliding block 4 and the pushing block, and the setting can reduce the equipment replacement cost and improve the work efficiency.
[0034] Please refer to Figure 1 The fixed seat 7 is arranged on both sides of the sliding block 3, the inner side of the fixed seat 7 is flush with and attached to the outer side of the side sliding block 4, and the pressure casting channel 1 starts to pressure cast after the top rod 41 rotates outwards.
[0035] The utility model provides a kind of inclined guide thimble inner extraction structure, since inclined insertion hole 51 has inclination angle, when inclined guide rod 6 moves up and down, pushing block 5 will also be driven to move transversely, and the front end of pushing block 5 is fixed with sliding block 3, sliding block 3 is provided with sliding groove 32 on both sides, side sliding block 4 is connected in sliding groove 32 by insertion block 42, sliding groove 32 and insertion block 42 are all inclined, and insertion block 42 is closely attached to sliding groove 32, so when sliding block 3 displaces on side sliding block 4, sliding block 3 will also drive side sliding block 4 to rotate inwards or outwards, and the top rod 41 of side sliding block 4 is arranged in product 2, and is matched with the perforation 22 of both sides of product 2, when top rod 41 rotates inwards, product 2 is separated, and when top rod 41 rotates outwards, top rod 41 is inserted in perforation 22, and supports product 2, so as long as the up-and-down movement of inclined guide rod 6 is controlled, the demoulding process of product 2 can be controlled, and there is almost no external force on product 2 in the demoulding process, thereby ensuring the good product rate of product 2, and the utility model has the characteristics of reducing equipment cost and improving the good product rate of product 2.
[0036] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A slanted guide pin internal extraction structure comprising a push-on structure, a die cast structure and a finished product (2), characterized in that: The propelling structure supports the finished product (2) during die casting, and is separated from the finished product (2) to complete demolding after die casting is completed, and the propelling structure comprises a sliding block (3), a side sliding block (4), a propelling block (5) and an inclined guide rod (6), the outer side of the side sliding block (4) is provided with a top rod (41) connected with the perforation (22) of the finished product (2), and the inner side of the side sliding block (4) is provided with an insertion block (42) slidingly connected in the sliding groove (32) on the outer side of the sliding block (3), the sliding groove (32) has an inclination angle, the side sliding block (4) controls the connection state of the top rod (41) and the perforation (22) of the finished product (2) by sliding in the sliding groove (32), the rear end of the sliding block (3) is fixed with the propelling block (5), the top of the propelling block (5) is provided with an inclined insertion hole (51), and the inclined guide rod (6) can be inserted into the inclined insertion hole (51) and control the movement of the propelling block (5) and the sliding block (3).
2. The bevelled guide pin inner extraction structure of claim 1, wherein: The connection end of the sliding block (3) and the finished product (2) is set as A1 end, the connection end of the sliding block (3) and the propelling block (5) is set as B1 end, and the two ends of the side sliding block (4) corresponding to the sliding block (3) are set as A2 end and B2 end, and the insertion block (42) of the side sliding block (4) is matched with the sliding groove (32).
3. The bevelled guide pin internal extraction structure of claim 2, wherein: The sliding groove (32) is internally provided with a flange (34), and the insertion block (42) is provided with a corresponding recess (43), and the flange (34) is tightly matched with the recess (43).
4. The bevelled guide pin internal extraction structure of claim 3, wherein: The sliding groove (32) of the sliding block (3) is inwardly inclined from the A1 end to the B1 end, and the insertion block (42) of the side sliding block (4) is outwardly inclined from the A2 end to the B2 end.
5. The bevelled guide pin internal extraction structure of claim 3, wherein: The sliding groove (32) of the sliding block (3) is outwardly inclined from the A1 end to the B1 end, and the insertion block (42) of the side sliding block (4) is inwardly inclined from the A2 end to the B2 end.
6. The bevelled guide pin internal extraction structure of claim 1, wherein: The connection part of the finished product (2) and the sliding block (3) is provided with a clamping port (21), and the sliding block (3) is provided with a clamping groove (31) matched therewith.
7. The bevelled guide pin internal extraction structure of claim 1, wherein: The sliding block (3) is provided with a sliding groove (32) on both sides, and the two side sliding blocks (4) are connected with the two sliding grooves (32) through the insertion blocks (42) respectively.
8. The bevelled guide pin internal extraction structure of claim 7, wherein: The connection part of the finished product (2) and the side sliding block (4) is provided with two corresponding perforations (22), and the top rods (41) of the two side sliding blocks (4) can be inserted into the two perforations respectively.
9. The bevelled guide pin internal extraction structure of claim 1, wherein: The connection part of the sliding block (3) and the propelling block (5) is provided with a protruding block (33), and the protruding block (33) is embedded in the propelling cavity (52) of the propelling block (5).
10. The bevelled guide pin internal extraction structure of claim 9, wherein: The fixed seat (7) is provided on both sides of the sliding block (3), and the inner side of the fixed seat (7) is flush and matched with the outer side of the side sliding block (4).