Structure capable of quickly replacing front end of ejector sleeve inner needle on injection molding machine

Abstract

The utility model discloses a structure capable of quickly replacing the front end of an ejector sleeve inner needle on an injection molding machine, particularly relates to the technical field of injection molding machines, and comprises a sleeve, an inner needle front end assembly is arranged at the top of the sleeve, an inner needle rear end assembly is arranged at the bottom of the sleeve, and a hexagonal transmission seat is welded at the bottom of the inner needle front end assembly. And a thread connector is welded to the bottom of the hexagonal transmission seat. According to the utility model, the hexagonal transmission seat and the thread connector are arranged, and the internal hexagonal wrench is sleeved on the hexagonal transmission seat to rotate, so that the internal needle can be disassembled without disassembling a mold, and the internal needle can be replaced on an injection molding machine, so that the actual use effect of the internal needle is better.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, and more specifically, to a structure that enables quick replacement of the front end of the ejector pin in an injection molding machine. Background Technology

[0002] An injection molding machine is a plastic molding equipment. Its working principle is similar to that of a syringe. It uses the thrust of a screw (or plunger) to inject molten plastic into a closed mold cavity. After solidification, the product is obtained. The existing injection molding machines have an integrated inner needle. When replacing the inner needle, the mold needs to be removed from the injection molding machine, which is very inconvenient.

[0003] Therefore, there is an urgent need for a structure that can quickly replace the front end of the ejector pin on an injection molding machine to solve the above problems. Utility Model Content

[0004] To overcome the aforementioned deficiencies of the prior art, embodiments of this utility model provide a structure that enables quick replacement of the inner pin tip on an injection molding machine. By providing a hexagonal transmission seat and a threaded connector, the pin can be removed by rotating an internal hexagonal wrench on the hexagonal transmission seat without disassembling the mold. This allows for replacement of the inner pin on the injection molding machine, resulting in better practical performance and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a structure that enables quick replacement of the inner needle front end on an injection molding machine, comprising a sleeve, an inner needle front end assembly disposed at the top of the sleeve, an inner needle rear end assembly disposed at the bottom of the sleeve, a hexagonal transmission seat welded to the bottom of the inner needle front end assembly, and a threaded connector welded to the bottom of the hexagonal transmission seat.

[0006] In a preferred embodiment, the inner needle front end assembly is connected to the inner needle rear end assembly via a threaded connector.

[0007] The technical effects and advantages of this utility model are as follows:

[0008] This invention features a hexagonal transmission seat and a threaded connector. Disassembly can be achieved by rotating an internal hex wrench on the hexagonal transmission seat without removing the mold. This allows for the replacement of the inner needle on the injection molding machine, resulting in better practical performance. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0010] The attached diagram is labeled as follows: 1. Sleeve; 2. Inner needle front end assembly; 3. Inner needle rear end assembly; 4. Hexagonal transmission seat; 5. Threaded connector. Detailed Implementation

[0011] 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.

[0012] As attached Figure 1 As shown, this utility model provides a structure that enables quick replacement of the inner needle front end on an injection molding machine, including a sleeve 1, an inner needle front end assembly 2 at the top of the sleeve 1, an inner needle rear end assembly 3 at the bottom of the sleeve 1, a hexagonal transmission seat 4 welded to the bottom of the inner needle front end assembly 2, and a threaded connector 5 welded to the bottom of the hexagonal transmission seat 4.

[0013] The inner needle front end assembly 2 is connected to the inner needle rear end assembly 3 via a threaded connector 5.

[0014] The specific implementation method is as follows: When using this utility model, the inner needle is divided into an inner needle front end assembly 2 and an inner needle rear end assembly 3, which achieves a split-type effect. Then, when disassembly is required, the inner needle can be removed by rotating the hexagonal transmission seat 4 with an Allen wrench. There is no need to disassemble the mold, which enables the inner needle to be replaced on the injection molding machine, making the actual use effect of this utility model better.

[0015] Working principle of this utility model:

[0016] Refer to the instruction manual appendix Figure 1 When using this utility model, the hexagonal transmission seat 4 and the threaded connector 5 are provided. The internal hexagonal wrench can be used to rotate on the hexagonal transmission seat 4 to remove the internal needle without removing the mold. This allows the internal needle to be replaced on the injection molding machine, resulting in a better practical effect of this utility model.

[0017] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0018] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0019] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A structure capable of quickly replacing the front end of the inner needle of the plunger barrel on an injection molding machine, comprising a sleeve (1), characterized in that: The sleeve (1) is provided with an inner needle front end assembly (2) at the top, and is provided with an inner needle rear end assembly (3) at the bottom, the inner needle front end assembly (2) is welded with a hexagonal transmission seat (4) at the bottom, and the hexagonal transmission seat (4) is welded with a screw thread connector (5) at the bottom.

2. The structure capable of quickly replacing the front end of the inner needle of the plunger barrel on the injection molding machine according to claim 1, characterized in that: The inner needle front end assembly (2) is connected with the inner needle rear end assembly (3) through the screw thread connector (5).

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