Modular injection mold positioning pin assembly

Abstract

The utility model discloses the positioning pin subassembly of modularization injection mold in the technical field of injection mold parts, including base body and pin body, the quantity of base body has two, the both ends threaded connection of pin body body has base body, the inside of one side of base body is equipped with guide groove, the inside fixedly connected with first threaded column of guide groove, the other side of base body is equipped with hidden circle groove, the inside of hidden circle groove is opened and is passed through and has locking screw hole, the quantity of locking screw hole has four, the inside screw thread fixedly connected with locking bolt of locking screw hole. This setting adopts the design mode of base and pin body, can split type dismounts pin body and replaces, need not to replace the whole, saves certain resource, avoided waste.

Description

Technical Field

[0001] This utility model belongs to the technical field of injection mold parts, specifically relating to a modular injection mold positioning pin assembly. Background Technology

[0002] In injection molds, locating pins are key components that ensure precise alignment of the moving and fixed molds during mold closing. Traditional locating pins are typically one-piece structures, meaning the pin head, pin body, and mounting flange are integrated into a single unit.

[0003] Positioning pins are widely used in mold making in the current market. For example, an injection molding device for producing headphones, as proposed in publication number CN216873375U, includes a base and square iron. Square irons are fixedly installed on both sides of the upper surface of the base. A baffle is fixedly installed on the upper surface of the square iron. A lower module is fixedly installed on the upper surface of the baffle. An upper module is provided above the lower module.

[0004] The most easily worn part of the existing locating pin during long-term use is the pin body that mates with the guide sleeve, especially the end near the parting surface. Once this part wears down and causes a decrease in accuracy, even if other parts are intact, the entire locating pin must be replaced, which is wasteful and has certain limitations. Utility Model Content

[0005] The purpose of this invention is to provide a modular injection mold positioning pin assembly to solve the problem mentioned in the background art that existing injection mold positioning pins require replacement of the entire assembly after damage, which easily leads to waste. This device adopts a separate design of the pin body and the base, which allows the pin body to be replaced separately after damage, without replacing the entire assembly, thus avoiding the waste of resources. Compared with the traditional integrated positioning pin, this device has significant advantages.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular injection mold positioning pin assembly, comprising a base body and a pin body, wherein there are two base bodies, and both ends of the pin body are threadedly connected to the base bodies. A guide groove is provided inside one side of the base body, and a first threaded post is fixedly connected inside the guide groove. A concealed ring groove is provided on the other side of the base body, and a locking screw hole is inserted through the concealed ring groove. There are four locking screw holes, and a locking bolt is fixedly connected inside the locking screw hole by a thread.

[0007] Preferably, the base body has a placement groove fixedly provided inside, and the center of the placement groove has a through hole.

[0008] Preferably, the pin body includes a connecting pin, and there are several connecting pins. A guide plate is fixedly connected to one side of the connecting pin, and a threaded fixing hole is fixedly opened in the center of the guide plate.

[0009] Preferably, a connecting guide groove is fixedly provided on the other side of the connecting pin body, and a connecting threaded rod is fixedly connected to the center of the connecting guide groove. The connecting threaded rod can be threaded into the interior of the next threaded fixing hole.

[0010] Preferably, a length scale is fixedly provided on one side of the surface of the connecting pin.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model adopts a base and pin design, which allows for the separate disassembly and replacement of the pin without replacing the whole unit, thus saving resources and avoiding waste.

[0012] 2. This utility model uses several segments to connect the pin body, which allows the length of the pin body to be adjusted according to actual needs during use. It has a wide range of applications and avoids the problem of fixed pin bodies being unable to be adjusted, making it more convenient. At the same time, it can further replace the worn parts of the pin body one by one without replacing the whole body, which is more economical. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the base body of this utility model; Figure 3 This is a schematic diagram of the bottom structure of the base body of this utility model; Figure 4 This is a schematic diagram of the connecting pin body of this utility model; Figure 5 This is a schematic diagram of the bottom structure of the connecting pin of this utility model.

[0014] In the diagram: 1. Base body; 2. Pin body; 3. Guide groove; 4. First threaded post; 5. Placement groove; 6. Mounting hole; 7. Locking screw hole; 8. Concealed ring groove; 9. Locking bolt; 21. Connecting pin body; 22. Guide platform; 23. Threaded fixing hole; 24. Connecting guide groove; 25. Connecting threaded rod; 26. Length scale. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-5 This utility model provides a technical solution: a modular injection mold positioning pin assembly, including a base body 1 and a pin body 2. There are two base bodies 1. The two ends of the pin body 2 are threadedly connected to the base bodies 1. A guide groove 3 is opened inside one side of the base body 1. A first threaded post 4 is fixedly connected inside the guide groove 3. A concealed ring groove 8 is opened on the other side of the base body 1. A locking screw hole 7 is opened through the concealed ring groove 8. There are four locking screw holes 7. A locking bolt 9 is fixedly connected inside the locking screw hole 7.

[0017] In this embodiment, by threading the two ends of the pin body 2 to the base body 1, and then threading the locking bolt 9 through the locking screw hole 7 inside the concealed ring groove 8, the two ends of the pin body 2 can be locked to prevent rotation and loosening, thus improving the connection effect. After the pin body 2 wears down, the base body 1 and the pin body 2 can be disassembled as a whole. At this time, by unlocking the locking bolt 9, the pin body 2 can be released from the locked state, so that the pin body 2 can be replaced without replacing the whole. This design method, by adopting the design of the base and the pin, allows for the separate disassembly and replacement of the pin, without replacing the whole, saving resources and avoiding waste.

[0018] Specifically, the base body 1 has a fixed placement groove 5 inside, and a mounting hole 6 is opened through the center of the placement groove 5.

[0019] In this embodiment, by fixing the bolt inside the mounting hole 6, the base body 1 can be threaded and fixed. At this time, the bolt can be hidden inside the placement groove 5 to avoid the protrusion affecting the operation of the moving mold.

[0020] Specifically, the pin body 2 includes a connecting pin 21, and there are several connecting pins 21. A guide plate 22 is fixedly connected to one side of the connecting pin 21, and a threaded fixing hole 23 is fixedly opened in the center of the guide plate 22.

[0021] In this embodiment, by connecting the pin body 2 with several connecting pins 21, the pin body 2 can be adjusted according to actual needs, making it more applicable. It can be adjusted according to different molds during use, which is more convenient. This design method connects the pin body with several segments, and the length of the pin body can be adjusted according to actual needs during use, which is more applicable and avoids the inability to adjust the fixed pin body, making it more convenient. At the same time, the worn parts of the pin body can be replaced one by one without replacing the whole body, which is more economical.

[0022] Specifically, a connecting guide groove 24 is fixedly opened on the other side of the connecting pin 21, and a connecting threaded rod 25 is fixedly connected to the center of the connecting guide groove 24. The connecting threaded rod 25 can be threaded into the interior of the next threaded fixing hole 23.

[0023] In this embodiment, by threading the guide platform 22 at the upper end of a connecting pin 21 into the connecting guide groove 24 at the bottom of the first connecting pin 21, the guide platform 22 is precisely fitted inside the connecting guide groove 24, allowing for stable docking.

[0024] Specifically, a length scale mark 26 is fixedly opened on one side of the surface of the connecting pin 21.

[0025] In this embodiment, different lengths of connecting pins 21 can be designed for connection. Each connecting pin 21 is marked with a length scale 26, which facilitates quick and accurate finding of the corresponding length and makes assembly easier. During use, by pre-determining the length of the pins, several connecting pins 21 are threaded together to form the pin body 2. At this time, the base body 1 is threaded onto both ends of the pin body 2 for connection. Locking bolts 9 are threaded onto both ends of the pin body 2 to lock the base body 1 and the pin body 2 together. The locking bolts 9 are located inside the concealed groove 8, which can prevent protrusions from affecting the fixation of the base body 1. The base body 1 is then fixedly connected to the mounting base through the through-hole 6 on the surface of the base body 1. The bolts can be hidden inside the placement groove 5 for better results.

[0026] 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 modular injection mold positioning pin assembly, comprising a base body (1) and a pin body (2), characterized in that: There are two base bodies (1). The two ends of the pin body (2) are threaded to the base bodies (1). A guide groove (3) is opened inside one side of the base body (1). A first threaded post (4) is fixedly connected inside the guide groove (3). A concealed ring groove (8) is opened on the other side of the base body (1). A locking screw hole (7) is opened through the concealed ring groove (8). There are four locking screw holes (7). A locking bolt (9) is fixedly connected inside the locking screw hole (7).

2. The modular injection mold positioning pin assembly according to claim 1, characterized in that: The base body (1) has a fixed placement groove (5) inside, and a mounting hole (6) is opened through the center of the placement groove (5).

3. The modular injection mold positioning pin assembly according to claim 1, characterized in that: The pin body (2) includes a connecting pin (21), and there are several connecting pins (21). A guide plate (22) is fixedly connected to one side of the connecting pin (21), and a threaded fixing hole (23) is fixedly opened in the center of the guide plate (22).

4. The modular injection mold positioning pin assembly according to claim 3, characterized in that: A connecting guide groove (24) is fixedly opened on the other side of the connecting pin (21). A connecting threaded rod (25) is fixedly connected to the center of the connecting guide groove (24). The connecting threaded rod (25) can be threaded into the interior of the next threaded fixing hole (23).

5. The modular injection mold positioning pin assembly according to claim 4, characterized in that: A length scale (26) is fixedly opened on one side of the surface of the connecting pin (21).

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