Simple position-limiting device for sliding block

Abstract

A simple slider limiting device belongs to die technology, including a limiting clamp, a supporting and pushing limiting clamp spring, a V-shaped groove arranged at the bottom of the slider and matched with the top of the limiting clamp, and arranged at the slider and the template of the plastic mold. The top of the limiting clamp is inverted V-shaped, which is matched with the V-shaped groove to limit the slider when the mold is closed. When the plastic mold is opened, the inclined guide pillar drives the slider to translate so that the top of the limiting clamp falls into another V-shaped groove, effectively realizing the separation of the slider and the molded product, and further realizing the opening of the plastic mold, reducing the frequency of maintenance and repair, improving the production efficiency, and the effect is remarkable.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, and particularly relates to plastic molds. Specifically, it is a simple limiting device for limiting the position of a slider. Background Technology

[0002] When plastic molds are used in the production of plastic products or parts, mold closing and opening always require the drive of a slanted guide post. The slanted guide post moves a slider, disengaging it from a pre-set notch, thus removing the entire mold from the already shaped plastic part. A slider spring is installed between the slider and the mold plate. As the slanted guide post moves the slider, the slider spring pushes the slider to separate from the mold plate. During this process, the slider spring needs to withstand elastic stress from the compression direction and lateral stress perpendicular to the spring compression direction. This lateral stress affects the stress distribution within the spring, not only weakening its elasticity but also significantly shortening its overall service life, causing parts to easily fail and resulting in unnecessary production problems later on.

[0003] Therefore, it is necessary to find replacement solutions for the slider spring or to protect the slider spring to reduce the need for parts replacement, reduce the frequency of maintenance, and thus improve production efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model proposes a simple slider limiting device.

[0005] The technical problem to be solved by this utility model is achieved through the following technical solution: A simple slider limiting device is provided, which is set between the slider and the template of a plastic mold. The slider is located between two opposing templates. An inclined guide post is provided on one side of the template, and the inclined guide post is inserted into the slider at an angle from the template. In this utility model, a limiting clamp is provided in the template on the other side of the slider. The end of the limiting clamp protrudes from the surface of the template in an inverted V shape. At least one V-shaped limiting groove is provided on the corresponding slider to cooperate with the end of the limiting clamp.

[0006] In this utility model, the template is provided with a T-shaped countersunk hole, and the limiting clamp can freely extend and retract within the T-shaped countersunk hole. The stepped surface of the T-shaped countersunk hole restricts the rotation of the limiting clamp.

[0007] Furthermore, the template at the tail of the limiting clamp is provided with a spring mounting groove, and a limiting clamp spring is provided in the spring mounting groove. Under the elastic support of the limiting clamp spring, the end of the limiting clamp cooperates with the limiting groove of the slider.

[0008] Furthermore, the outer diameter of the limiting clamp is not greater than the inner diameter of the spring mounting groove.

[0009] Furthermore, a wear-resistant plate is provided on the template at the bottom of the slider, and the T-shaped countersunk hole is located on the wear-resistant plate at the bottom of the slider.

[0010] In this invention, the slider has two limiting grooves, which are arranged along the sliding direction of the slider.

[0011] Compared with the prior art, the present invention has the following advantages: (1) By setting a V-groove on the slider and cooperating with the limiting clamp, this application determines at least one accurate limiting position of the slider movement, which can ensure stable closure when the mold is closed and effective separation when the mold is opened. (2) The V-groove provided on the slider in this application is in frictional engagement with the end of the limiting clamp, and the inclined surface contact effectively achieves self-locking, effectively preventing slippage and improving the limiting effect; (3) The limiting clamp of this application is pushed by the limiting clamp spring and elastically cooperates with the slider, so that the overall structure of the mold can be relatively stable when the slider moves horizontally and does not reach the limited position; (4) The limiting structure of this application is protected by the wear-resistant plate at the bottom of the slider, which provides good protection and is also convenient for installation and disassembly; (5) The structure of this application is simple, the processing cost is low, it can be mass-produced, and it can be replaced at any time if there is wear and tear without affecting the production schedule. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the mold closing state in this application; Figure 2 This is a schematic diagram of the mold opening state of this application; Figure 3 This is a schematic diagram of the limiting clamp structure of this application.

[0013] In the diagram: 1. Fixed plate; 2. Upper template; 3. Lower template; 4. Inclined guide post; 5. Slider; 6. Slider bottom wear-resistant plate; 7. Limiting clamp; 8. Limiting clamp spring; 9. V-groove; 10. Spring mounting groove; 11. Molded product. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific preferred embodiments, but this does not limit the scope of protection of the present invention.

[0015] A simple slider limiting device is used in plastic molds, such as plastic molds... Figure 1 As shown, it includes an upper template and a lower template. A slider is provided between the upper template and the lower template. The slider seals the injection port of the molded product. A slider base is provided on the outside of the slider. The slider base is fixed by bolts. An inclined guide post passes through the upper template and the slider. A wear-resistant plate is provided at the bottom of the slider.

[0016] The wear-resistant plate at the bottom of the slider has a T-shaped countersunk hole, the width of the upper opening being smaller than the width of the lower opening, creating a stepped surface on both sides of the T-shaped countersunk hole. A limiting clamp passes through the T-shaped countersunk hole. Figure 3 As shown, the middle part of the limiting clamp mates with the stepped surface of the T-shaped countersunk hole. The top of the limiting clamp is inverted V-shape, and the lower end of the limiting clamp is connected to a limiting clamp spring. The limiting clamp spring is located in a pre-set spring mounting groove in the lower template. Under the push of the limiting clamp spring, the top of the limiting clamp protrudes from the upper surface of the wear-resistant plate at the bottom of the slider. Correspondingly, the bottom surface of the slider is provided with two V-shaped grooves, both of which mate with the top of the limiting clamp.

[0017] The aforementioned simple slider limiting device includes a limiting clamp, a limiting clamp spring, and a V-groove on the bottom surface of the slider. The limiting clamp and the V-groove work together to limit the slider's position. When the molded product is completed and the plastic mold is opened, as... Figure 2 As shown, the upper template is lifted, which drives the inclined guide post to move the slider horizontally, so that the top of the limiting clamp falls into another V-shaped groove, effectively separating the slider from the molded product, thereby realizing the opening of the plastic mold, and the finished mold can be taken out of the plastic mold.

[0018] In summary, based on the above structure and working process, it can be seen that the simplified slider limiting device of this application can effectively limit the slider, protect the elastic structure, reduce parts replacement, improve production efficiency, and achieve significant results.

Claims

1. A simple limiting device for a sliding block, which is arranged between a sliding block and a mold plate of a plastic mold, the sliding block being located between two opposite mold plates, and a slanted guide pillar being arranged on one of the mold plates and being inserted obliquely into the sliding block from the mold plate, characterized in that: The template on the other side of the slider is provided with a limiting clip. The end of the limiting clip protrudes from the surface of the template in an inverted V shape. The corresponding slider is provided with at least one V-shaped limiting groove that cooperates with the end of the limiting clip.

2. The position-limiting device of claim 1, wherein: The template has a T-shaped countersunk hole, and the limiting clamp can freely extend and retract within the T-shaped countersunk hole. The stepped surface of the T-shaped countersunk hole restricts the rotation of the limiting clamp.

3. The stop device of claim 2, wherein: The template at the tail of the limiting clamp has a spring mounting groove, and a limiting clamp spring is installed in the spring mounting groove. Under the elastic support of the limiting clamp spring, the end of the limiting clamp cooperates with the limiting groove of the slider.

4. The stop device of claim 3, wherein: The outer diameter of the limiting clamp is not greater than the inner diameter of the spring mounting groove.

5. The stop device of claim 4, wherein: The template at the bottom of the slider is provided with a wear-resistant plate, and the T-shaped countersunk hole is located on the wear-resistant plate at the bottom of the slider.

6. The position-limiting device of claim 1, wherein: The slider has two limiting grooves, which are set along the sliding direction of the slider.

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