Die hot runner valve needle dismounting tool

Abstract

The utility model discloses a mold hot runner valve needle dismounting tool which comprises a dismounting tool rod body, a connecting piece is connected to the side wall of the middle of the dismounting tool rod body, a clamping arm is connected to the connecting piece, a dismounting mechanism is arranged at the top end of the dismounting tool rod body, and a clamping mechanism is arranged at the bottom end of the dismounting tool rod body. The top end of the dismounting tool rod body is in inserted connection with the rotating handle through the dismounting mechanism to form limiting, and the top end of the dismounting mechanism penetrates through the top of the rotating handle to be connected with the reinforcing mechanism. According to the design of the device, when the rotating handle is damaged by a user, only the handle part needs to be independently replaced, the whole extractor is not needed, due to the fact that the cost of the handle is relatively low, the maintenance cost is remarkably reduced through the design, due to the fact that replacement of the handle is much faster than replacement of the whole extractor, the downtime of a production line can be greatly shortened, and the production efficiency is improved. Therefore, the production efficiency can be maintained, and the yield loss caused by equipment maintenance can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of valve needle disassembly technology, and in particular to a tooling for disassembling valve needles in hot runner molds. Background Technology

[0002] The hot runner valve pin removal tool is a specialized tool used to conveniently and quickly remove the valve pin assembly in the hot runner system during injection mold repair or replacement. The puller is a commonly used instrument in the hot runner valve pin removal tool. Its main function is to pull out the valve pin. It usually uses mechanical principles. When the operator activates the puller, it generates enough force to pull the valve pin out of the mold.

[0003] The rotating handle on the existing mold hot runner valve pin removal puller is prone to damage after long-term use. This design flaw brings several drawbacks. When the rotating handle is damaged, users often need to replace the entire puller, which means that they have to buy a new puller, increasing maintenance costs. The handle is a relatively low-cost component of the puller, but if the entire device needs to be replaced, this design is not economical. Replacing the entire puller requires a certain amount of time and human resources. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a tooling for disassembling hot runner valve pins in molds. The design of this device allows users to replace only the handle part when the rotating handle is damaged, without having to replace the entire puller. Since the handle is relatively inexpensive, this design significantly reduces maintenance costs. Because replacing the handle is much faster than replacing the entire puller, it can greatly reduce production line downtime, which helps maintain production efficiency and avoid production losses due to equipment maintenance.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a mold hot runner valve needle disassembly fixture, including a disassembly fixture rod, a connector connected to the middle side wall of the disassembly fixture rod, a clamping arm connected to the connector, a disassembly mechanism provided at the top of the disassembly fixture rod, the top of the disassembly fixture rod being inserted into a rotating handle through the disassembly mechanism to form a limit, and the top of the disassembly mechanism penetrating the top of the rotating handle and connecting to a reinforcement mechanism.

[0006] As a preferred technical solution of this utility model, the disassembly mechanism includes an extension rod fixed to the outer wall of the top end of the disassembly tool rod, a through hole opened in the inner wall of the rotating handle, a movable cavity opened in the extension rod, a reset spring provided in the inner wall of the movable cavity, and a limiting rod slidably connected in the movable cavity.

[0007] As a preferred technical solution of this utility model, the through hole is opened vertically inside the rotating handle, and the top end of the extension rod passes through the through hole and is connected to the reinforcement mechanism.

[0008] In a preferred embodiment of this utility model, one end of the reset spring is connected to the outer wall of the limiting rod, and the other end of the reset spring is connected to the inner wall of the movable cavity.

[0009] As a preferred embodiment of this utility model, the diameter of the limiting rod is set to be equal to the diameter of the limiting groove, and the outer wall of the limiting rod is arc-shaped.

[0010] As a preferred technical solution of this utility model, the reinforcement mechanism includes an external thread provided on the outer wall of the extension rod, a nut connected to the external thread, and an internal thread groove provided on the inner wall of the nut and threadedly connected to the outer wall of the external thread.

[0011] Compared with the prior art, the beneficial effects that this utility model can achieve are:

[0012] 1. The design of this device allows users to replace only the handle section when the handle is damaged, without having to replace the entire puller. Since the handle is relatively inexpensive, this design significantly reduces maintenance costs. Because replacing the handle is much faster than replacing the entire puller, it can greatly reduce production line downtime, which helps maintain production efficiency and avoid output loss due to equipment maintenance.

[0013] 2. It avoids unnecessary expenses caused by replacing the entire puller, making maintenance work more economical and efficient. This design takes into account the independence and replaceability of the components, avoiding the waste of resources caused by replacing the whole unit. The process of replacing the handle is simple and does not require complicated operating steps or special tools, which reduces the difficulty of maintenance and allows even ordinary technicians to quickly complete the replacement work.

[0014] 3. Production line flexibility is improved as maintenance becomes easier and faster. Equipment can be quickly repaired in emergencies, minimizing disruption to production schedules. The design enhances the reliability of the entire disassembly fixture by allowing for individual replacement of vulnerable parts. There's no longer a worry about the entire machine becoming unusable due to a damaged handle. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a front view schematic diagram of the structure of this utility model;

[0017] Figure 3This is a three-dimensional schematic diagram of the connection between the disassembly tooling rod and the rotating handle of this utility model.

[0018] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0019] Figure 5 This is a front sectional view of a portion of the disassembly mechanism and reinforcement mechanism of this utility model.

[0020] The components are labeled as follows: 1. Disassembly tooling rod; 2. Connector; 3. Clamping arm; 4. Rotating handle; 5. Disassembly mechanism; 51. Extension rod; 52. Through hole; 53. Movable cavity; 54. Limiting groove; 55. Return spring; 56. Limiting rod; 6. Reinforcing mechanism; 61. External thread; 62. Nut; 63. Internal thread groove. Detailed Implementation

[0021] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified. Example

[0022] like Figure 1-5 As shown, a mold hot runner valve needle disassembly fixture includes a disassembly fixture rod 1, a connector 2 connected to the middle side wall of the disassembly fixture rod 1, a clamping arm 3 connected to the connector 2, a disassembly mechanism 5 provided at the top of the disassembly fixture rod 1, the top of the disassembly fixture rod 1 being inserted into a rotating handle 4 through the disassembly mechanism 5 to form a limit, and the top of the disassembly mechanism 5 penetrating the top of the rotating handle 4 and being connected to a reinforcing mechanism 6.

[0023] The disassembly mechanism 5 includes an extension rod 51 fixed to the outer wall of the top of the disassembly tool rod 1, a through hole 52 opened in the inner wall of the rotating handle 4, a movable cavity 53 opened in the extension rod 51, a return spring 55 set in the inner wall of the movable cavity 53, and a limiting rod 56 slidably connected in the movable cavity 53. The reinforcement mechanism 6 includes an external thread 61 set in the outer wall of the extension rod 51, a nut 62 connected to the external thread 61, and an internal thread groove 63 set in the inner wall of the nut 62 and threadedly connected to the outer wall of the external thread 61.

[0024] When the operator needs to disassemble the rotating handle 4, first turn the internal thread groove 63 upward, so that the internal thread groove 63 drives the nut 62 to cooperate with the external thread 61 to rotate upward until the nut 62 moves out of the external thread 61 at the top of the extension rod 51. At this time, press the limiting rod 56 on both sides of the outer wall of the rotating handle 4, so that the limiting rod 56 moves inward, thereby squeezing the return spring 55 to deform. First, squeeze the limiting rod 56 into the limiting groove 54. The inner end of the limiting groove 54 is set in a funnel shape. Pull the disassembly tooling rod 1 downward with force, which drives the extension rod 51 to pull downward. At this time, the extension rod 51 drives the limiting rod 56 to slide downward from the funnel opening until the extension rod 51 moves out of the through hole 52 to complete the disassembly.

[0025] It is worth noting that the through hole 52 is open at both the top and bottom inside the rotating handle 4. The top of the extension rod 51 passes through the through hole 52 and is connected to the reinforcement mechanism 6. The extension rod 51 passes through the through hole 52 and is connected to the reinforcement mechanism 6, which can ensure the stability of the entire disassembly mechanism during operation and avoid structural damage caused by improper operation. The through hole 52 serves as a guide channel to ensure the movement trajectory of the extension rod 51 during disassembly, reducing errors and deviations.

[0026] One end of the return spring 55 is connected to the outer wall of the limiting rod 56, and the other end of the return spring 55 is connected to the inner wall of the movable cavity 53. The design of the two ends of the return spring 55 provides a double limiting function, ensuring the relative position of the limiting rod 56 inside the movable cavity 53, preventing it from moving too much during operation, and maintaining the stability of the structure. When the operator presses the limiting rod 56, the deformation of the return spring 55 can be controlled, so that the limiting rod 56 can be squeezed into the limiting groove 54. This design ensures the accuracy of operation and the safety of the components. The diameter of the limiting rod 56 is equal to the diameter of the limiting groove 54. The outer wall of the limiting rod 56 is arc-shaped. The fact that the diameter of the limiting rod 56 is equal to the diameter of the limiting groove 54 ensures that the limiting rod 56 can smoothly enter the limiting groove 54 and will not easily fall off, improving the reliability of the disassembly operation. The arc-shaped design of the outer wall of the limiting rod 56 can reduce friction with the inner wall of the limiting groove 54, making the sliding of the limiting rod 56 inside the limiting groove 54 smoother, reducing resistance during operation, thereby reducing labor intensity and improving operation efficiency.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A mold hot runner valve pin disassembly fixture, comprising a disassembly fixture rod (1), characterized in that: A connector (2) is connected to the middle side wall of the disassembly tooling rod (1), and a clamping arm (3) is connected to the connector (2). A disassembly mechanism (5) is provided at the top of the disassembly tooling rod (1). The top of the disassembly tooling rod (1) is connected to the rotating handle (4) through the disassembly mechanism (5) to form a limit. The top of the disassembly mechanism (5) passes through the top of the rotating handle (4) and is connected to the reinforcement mechanism (6).

2. The mold hot runner valve pin disassembly fixture according to claim 1, characterized in that: The disassembly mechanism (5) includes an extension rod (51) fixed on the outer wall of the top of the disassembly tool rod (1), a through hole (52) opened on the inner wall of the rotating handle (4), an active cavity (53) opened in the extension rod (51), a reset spring (55) set on the inner wall of the active cavity (53), and a limiting rod (56) slidably connected in the active cavity (53).

3. The mold hot runner valve pin disassembly fixture according to claim 2, characterized in that: The through hole (52) is opened through the top and bottom of the rotating handle (4), and the top end of the extension rod (51) passes through the through hole (52) and is connected to the reinforcement mechanism (6).

4. The mold hot runner valve pin disassembly fixture according to claim 2, characterized in that: One end of the reset spring (55) is connected to the outer wall of the limiting rod (56), and the other end of the reset spring (55) is connected to the inner wall of the movable cavity (53).

5. The mold hot runner valve pin disassembly fixture according to claim 2, characterized in that: The diameter of the limiting rod (56) is equal to the diameter of the limiting groove (54), and the outer wall of the limiting rod (56) is arc-shaped.

6. The mold hot runner valve pin disassembly fixture according to claim 3, characterized in that: The reinforcement mechanism (6) includes an external thread (61) on the outer wall of the extension rod (51), a nut (62) connected to the external thread (61), and an internal thread groove (63) on the inner wall of the nut (62) and threadedly connected to the outer wall of the external thread (61).

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