A guide device for injection moulds

Abstract

The utility model discloses a kind of guiding devices for injection mold, including movable mould, the four corners of movable mould are provided with mounting hole, the inside of mounting hole is equipped with guide pillar, the guide pillar includes bottom column and top column, detachable fixed connection between bottom column and top column, when guide pillar appears abrasion under long time use, separate bottom column and top column, new top column is assembled with bottom column and forms new guide pillar, realize to replace individual top column, reduce cost, when installing guide pillar, guide pillar is slid into the inside of mounting hole, drive plug rod to be inserted into the inside of slide hole, for the installation and fixing of guide pillar, when removing guide pillar, by pulling the end of plug rod, the end of plug rod is slid out of the inside of insertion hole, guide pillar can be directly taken out from the inside of mounting hole, the installation and removal of guide pillar are facilitated, without using other tools or bolt to fix and cancel the position of guide pillar, convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a guiding device for injection molds. Background Technology

[0002] Injection molds are tools for producing plastic products, and also tools for giving plastic products a complete structure and precise dimensions. Injection molds are equipped with guide pillars and guide sleeves for guiding the fixed mold and the moving mold. The guiding device composed of guide pillars and guide sleeves ensures the stability and accuracy of the moving mold during the mold closing process.

[0003] In existing technologies, guide pillar installation methods mainly include press-fit and quick-installation. In press-fit installation, an interference fit is used, and the guide pillar is manually or with the aid of a press machine pressed into the mounting hole on the moving mold. In quick-installation, the guide pillar is slidably inserted into the mounting hole on the moving mold, and then bolts are used to fix it in place. Both methods require additional tools or bolts to secure the guide pillar, making installation and disassembly cumbersome. Furthermore, existing guide pillars are mostly one-piece designs with a fixed length, meaning a single guide pillar can only be used on one mold. Over time, during injection molding, the guide pillar will wear down, requiring replacement of the entire pillar, resulting in high operating costs. Utility Model Content

[0004] The purpose of this invention is to provide a guiding device for injection molds to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a guiding device for injection molds, comprising a moving mold, wherein mounting holes are provided at the four corners of the moving mold, and guide pillars are installed inside the mounting holes. Each guide pillar includes a bottom pillar and a top pillar, and the bottom pillar and the top pillar are detachably fixedly connected. Sliding holes are provided at the four corners of the moving mold, and insert rods are slidably installed inside the sliding holes. The bottom pillars are slidably installed inside the mounting holes, and insertion holes are provided on the outer side of the ends of the bottom pillars. The insert rods are slidably inserted into the insertion holes.

[0006] As a further preferred embodiment of this technical solution, the moving mold is symmetrically fixedly installed at the internal position of the corresponding mounting hole, and the bottom column is symmetrically provided with a limiting groove, and the limiting block and the limiting groove are slidably inserted into each other.

[0007] As a further preferred embodiment of this technical solution, a receiving hole is provided at a concentric position corresponding to the sliding hole inside the moving mold. The receiving hole passes through the end of the moving mold. A compression spring is sleeved on the outside of the insertion rod. One end of the compression spring is fixedly connected to the outside of the insertion rod. A threaded hole is provided at one end of the receiving hole. A cap is installed inside the end of the receiving hole. An external thread is provided on the outside of the end of the cap. The external thread is threadedly connected to the threaded hole. The end of the compression spring away from the insertion rod is in compression contact with the end of the cap. The insertion rod passes through the middle of the cap.

[0008] As a further preferred embodiment of this technical solution, the bottom end of the bottom post is provided with a bevel, and the end of the insertion rod is provided with a first chamfer, and the bevel and the first chamfer are in compression contact.

[0009] As a further preferred embodiment of this technical solution, a through hole is provided at the end of the insertion rod away from the first chamfer.

[0010] As a further preferred embodiment of this technical solution, a groove is provided at the center of the top of the bottom column, and a protruding column is integrally fixedly installed at the bottom of the top column. The protruding column is slidably inserted into the groove. Positioning holes are symmetrically provided inside the top of the bottom column, and storage grooves are symmetrically provided inside the protruding column. A positioning rod is slidably installed inside the storage groove. A return spring is fixedly installed at one end of the positioning rod, and the end of the return spring away from the positioning rod is fixedly connected to the end of the protruding column corresponding to the storage groove.

[0011] As a further preferred embodiment of this technical solution, the end of the protruding post is provided with a second chamfer.

[0012] This utility model provides a guiding device for injection molds, which has the following advantages:

[0013] (1) This utility model uses a steel wire or other tool to insert into the positioning hole and push the positioning rod out of the positioning hole to separate the bottom column and the top column. Then, the protrusion on the new top column is slid into the groove in the middle of the top of the bottom column and the positioning rod is completely stored in the storage groove. At this time, the return spring is in a compressed state. When the positioning rod moves to the position of the corresponding positioning hole, the push of the positioning rod by the return spring can drive the internal positioning rod to be inserted into the positioning hole for assembling the bottom column and the top column, realizing the replacement of the individual top column and reducing the cost.

[0014] (2) This utility model slides the guide post into the installation hole and slides the limiting block inside the installation hole into the limiting groove on the outside of the bottom post to control the placement of the plug rod corresponding to the plug hole on the outside of the bottom post. The inclined surface on the outside of the bottom end of the bottom post forms the first chamfer of the end of the household plug rod, which can control the plug rod to slide inside the sliding hole. At this time, the compression spring is in a compressed state. When the plug rod corresponds to the plug hole, the compression spring pushes the plug rod to drive the plug rod into the sliding hole for the installation and fixing of the guide post. When the guide post is removed, the end of the plug rod is pulled to slide the end of the plug rod out of the plug hole. The guide post can be directly removed from the installation hole, which is convenient for the installation and removal of the guide post. There is no need to use other tools or bolts to fix the position of the guide post or cancel the positioning. The operation is convenient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial cross-sectional exploded view of the present invention;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of a partial explosion structure of the present invention;

[0019] In the diagram: 1. Moving mold; 2. Mounting hole; 3. Guide post; 4. Sliding hole; 5. Insert rod; 6. Insertion hole; 7. Limiting block; 8. Limiting groove; 9. Storage hole; 10. Compression spring; 11. Threaded hole; 12. Screw cap; 13. External thread; 14. Bevel; 15. First chamfer; 16. Through hole; 17. Groove; 18. Protruding post; 19. Positioning hole; 20. Storage groove; 21. Positioning rod; 22. Return spring; 23. Second chamfer; 31. Bottom post; 32. Top post. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figures 1 to 4As shown in this embodiment, a guiding device for injection molds includes a moving mold 1. The moving mold 1 has mounting holes 2 at its four corners. Guide pillars 3 are installed inside the mounting holes 2. Each guide pillar 3 includes a bottom pillar 31 and a top pillar 32, which are detachably fixedly connected. Sliding holes 4 are provided at each of the four corners of the moving mold 1. Inserted rods 5 are slidably installed inside the sliding holes 4. The bottom pillar 31 is slidably installed inside the mounting holes 2. Insertion holes 6 are provided on the outer side of the end of the bottom pillar 31. The inserted rods 5 are slidably inserted into the insertion holes 6. When the guide pillars 3 wear down after prolonged use, the bottom pillar 31 and the top pillar 32 will... The top post 32 is separated, and then the new top post 32 is assembled with the bottom post 31 to form a new guide post 3, which allows for the replacement of the individual top post 32, reducing costs. When installing the guide post 3, the guide post 3 is slidably inserted into the interior of the mounting hole 2, which drives the insert rod 5 into the interior of the sliding hole 4 for installation and fixation of the guide post 3. When removing the guide post 3, by pulling the end of the insert rod 5, the end of the insert rod 5 is slid out of the interior of the insertion hole 6, and the guide post 3 can be directly removed from the interior of the mounting hole 2. This facilitates the installation and removal of the guide post 3 without the need to use other tools or bolts to fix or remove the positioning of the guide post 3, making the operation convenient.

[0022] like Figures 1 to 4 As shown, the moving mold 1 is symmetrically fixedly installed with a limiting block 7 at the internal position corresponding to the mounting hole 2, and the bottom column 31 is symmetrically provided with a limiting groove 8 on the outer side, and the limiting block 7 and the limiting groove 8 are slidably inserted into each other.

[0023] When the guide post 3 is slidably inserted into the interior of the mounting hole 2, the limiting block 7 inside the mounting hole 2 is slidably inserted into the limiting groove 8 on the outside of the bottom post 31, which is used to control the placement of the insertion rod 5 corresponding to the insertion hole 6 on the outside of the bottom post 31.

[0024] like Figures 1 to 4 As shown, a receiving hole 9 is provided inside the moving mold 1 at a concentric position corresponding to the sliding hole 4. The receiving hole 9 passes through the end of the moving mold 1. A compression spring 10 is sleeved on the outside of the insertion rod 5. One end of the compression spring 10 is fixedly connected to the outside of the insertion rod 5. A threaded hole 11 is provided at one end of the receiving hole 9. A cap 12 is installed inside the end of the receiving hole 9. An external thread 13 is provided on the outside of the end of the cap 12. The external thread 13 is threadedly connected to the threaded hole 11. The end of the compression spring 10 away from the insertion rod 5 is in compression contact with the end of the cap 12. The insertion rod 5 passes through the middle of the cap 12. A bevel 14 is provided on the outside of the bottom end of the bottom post 31. A first chamfer 15 is provided on the end of the insertion rod 5. The bevel 14 and the first chamfer 15 are in compression contact.

[0025] The guide post 3 is slidably inserted into the mounting hole 2. The bevel 14 on the outer side of the bottom end of the bottom post 31 chamfers the first chamfer 15 at the end of the household plug rod 5, which can control the plug rod 5 to slide inside the sliding hole 4. At this time, the compression spring 10 is in a compressed state. When the plug rod 5 corresponds to the insertion hole 6, the compression spring 10 pushes the plug rod 5 to drive the plug rod 5 into the sliding hole 4 for the installation and fixation of the guide post 3. When removing the guide post 3, by pulling the end of the plug rod 5, the end of the plug rod 5 is slid out of the insertion hole 6, and the guide post 3 can be directly removed from the inside of the mounting hole 2, which facilitates the installation and removal of the guide post 3.

[0026] like Figures 1 to 4 As shown, the end of the insertion rod 5 away from the first chamfer 15 has a through hole 16.

[0027] A steel wire or other tool can be inserted into the hole 16 to pull the rod 5 to move it.

[0028] like Figures 1 to 4 As shown, a groove 17 is provided in the middle of the top of the bottom post 31, and a protruding post 18 is integrally fixedly installed at the bottom of the top post 32. The protruding post 18 is slidably inserted into the groove 17. A positioning hole 19 is symmetrically provided inside the top of the bottom post 31, and a storage groove 20 is symmetrically provided inside the protruding post 18. A positioning rod 21 is slidably installed inside the storage groove 20. A return spring 22 is fixedly installed at one end of the positioning rod 21, and the end of the return spring 22 away from the positioning rod 21 is fixedly connected to the end of the protruding post 18 corresponding to the end of the storage groove 20.

[0029] Insert a wire or other tool into the positioning hole 19 and push the positioning rod 21 out of the positioning hole 19 to separate the bottom post 31 and the top post 32. Then slide the protrusion 18 on the new top post 32 into the groove 17 in the middle of the top of the bottom post 31 and store the positioning rod 21 completely in the storage groove 20. At this time, the return spring 22 is in a compressed state. When the positioning rod 21 moves to the position of the corresponding positioning hole 19, the push of the positioning rod 21 by the return spring 22 can drive the internal positioning rod 21 to be inserted into the positioning hole 19 for assembling the bottom post 31 and the top post 32.

[0030] like Figures 1 to 4 As shown, the end of the protruding post 18 is provided with a second chamfer 23.

[0031] The design of the second chamfer 23 makes it easy to insert the protrusion 18 into the groove 17.

[0032] This utility model provides a guiding device for injection molds, the specific working principle of which is as follows:

[0033] When the guide post 3 wears out after prolonged use, a wire or other tool can be inserted into the positioning hole 19 to push the positioning rod 21 out of the positioning hole 19, thus separating the bottom post 31 and the top post 32. Then, the protrusion 18 on the new top post 32 is slid into the groove 17 in the middle of the top of the bottom post 31, and the positioning rod 21 is completely stored in the storage groove 20. At this time, the return spring 22 is in a compressed state. When the positioning rod 21 moves to the position of the corresponding positioning hole 19, the push of the positioning rod 21 by the return spring 22 can drive the internal positioning rod 21 to be inserted into the positioning hole 19 for assembling the bottom post 31 and the top post 32, realizing the replacement of the individual top post 32, and reducing costs.

[0034] When installing the guide post 3, slide the guide post 3 into the installation hole 2. Slide the limiting block 7 inside the installation hole 2 into the limiting groove 8 on the outside of the base post 31 to control the placement of the insertion rod 5 corresponding to the insertion hole 6 on the outside of the base post 31. The inclined surface 14 on the outside of the bottom end of the base post 31 chamfers the first chamfer 15 at the end of the household insertion rod 5, which can control the insertion rod 5 to slide inside the sliding hole 4. At this time, the compression spring 10 is in a compressed state. When the insertion rod 5 corresponds to the insertion hole 6, the compression spring 10 pushes the insertion rod 5 to drive the insertion rod 5 into the sliding hole 4 for the installation and fixation of the guide post 3. When removing the guide post 3, pull the end of the insertion rod 5 to slide the end of the insertion rod 5 out of the insertion hole 6. The guide post 3 can be directly removed from the installation hole 2, which is convenient for the installation and removal of the guide post 3. There is no need to use other tools or bolts to fix the position of the guide post 3 or cancel the positioning. The operation is convenient.

[0035] 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. A guiding device for injection molds, comprising a moving mold (1), wherein mounting holes (2) are provided at the four corners of the moving mold (1), characterized in that: The mounting hole (2) is equipped with a guide post (3), which includes a bottom post (31) and a top post (32). The bottom post (31) and the top post (32) are detachably fixedly connected. The four corners of the moving mold (1) are provided with sliding holes (4). The sliding holes (4) are slidably installed with insert rods (5). The bottom post (31) is slidably installed inside the mounting hole (2). The outer side of the end of the bottom post (31) is provided with an insertion hole (6). The insert rod (5) is slidably inserted into the insertion hole (6).

2. The guiding device for injection molds according to claim 1, characterized in that: The moving mold (1) is symmetrically fixedly installed with a limiting block (7) at the internal position of the mounting hole (2), and the bottom column (31) is symmetrically provided with a limiting groove (8) on the outside. The limiting block (7) and the limiting groove (8) are slidably inserted into each other.

3. The guiding device for injection molds according to claim 1, characterized in that: The moving mold (1) has a receiving hole (9) at the concentric position of the sliding hole (4) inside. The receiving hole (9) passes through the end of the moving mold (1). A compression spring (10) is sleeved on the outside of the insert rod (5). One end of the compression spring (10) is fixedly connected to the outside of the insert rod (5). A threaded hole (11) is opened at one end of the receiving hole (9). A cap (12) is installed inside the end of the receiving hole (9). An external thread (13) is provided on the outside of the end of the cap (12). The external thread (13) is threadedly connected to the threaded hole (11). The end of the compression spring (10) away from the insert rod (5) is pressed and contacted with the end of the cap (12). The insert rod (5) passes through the middle of the cap (12).

4. A guiding device for injection molds according to claim 3, characterized in that: The bottom of the bottom post (31) has a bevel (14) on the outer side, and the end of the insertion rod (5) has a first chamfer (15). The bevel (14) and the first chamfer (15) are in contact.

5. A guiding device for injection molds according to claim 4, characterized in that: The insertion rod (5) has a through hole (16) at the end away from the first chamfer (15).

6. A guiding device for injection molds according to claim 4, characterized in that: The bottom post (31) has a groove (17) in the middle of its top end. The bottom end of the top post (32) is integrally fixed with a protruding post (18). The protruding post (18) is slidably inserted into the groove (17). The top end of the bottom post (31) has symmetrically opened positioning holes (19). The protruding post (18) has symmetrically opened storage grooves (20). The storage groove (20) has a slidably installed positioning rod (21). One end of the positioning rod (21) is fixedly installed with a return spring (22). The end of the return spring (22) away from the positioning rod (21) is fixedly connected to the end of the protruding post (18) corresponding to the storage groove (20).

7. A guiding device for injection molds according to claim 6, characterized in that: The end of the protrusion (18) is provided with a second chamfer (23).

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