Accelerated demolding device for plastic one-piece puller mold

Abstract

The utility model belongs to the technical field of molds, particularly relates to an accelerated demolding device for a plastic connected puller mold, and belongs to the technical field of molds. According to the device, two small ejector plates and a seesaw are additionally arranged on the basis of a traditional mold aiming at the problems that the number of pitched roof inserts of a connected puller mold is large, and demolding is unstable. The mold is composed of a plate A, a plate B, a plate C, a mold foot D, a small ejector plate E, a large ejector plate F, a bottom plate G, a seesaw H and the like. Through cooperative work of all the components, in the ejection process of the large ejector plate, the small ejector plate moves in an accelerated mode through the seesaw, a product can be separated from a mold more quickly and stably, the problem of unstable demolding is effectively solved, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, specifically relating to an accelerated demolding device for plastic one-piece zipper pull molds. Background Technology

[0002] In the injection molding process of plastic products, the demolding process is crucial. For complex plastic products such as one-piece pull heads with numerous angled ejector inserts, traditional mold structures face many challenges during demolding. Traditional molds typically have only two large ejector plates, and their ejection distance is limited by the angled ejectors, resulting in the product not being able to stably detach from the cavity. In actual production, this unstable demolding prevents the mold from functioning properly, not only reducing production efficiency but also potentially causing product damage and increasing production costs, failing to meet the high-efficiency, high-quality production demands of modern plastic products. Utility Model Content

[0003] To address the problems mentioned in the background section, this invention provides an accelerated demolding device for plastic one-piece zipper pull molds. This device solves the problems of unstable demolding and products failing to properly detach from the mold cavity in existing one-piece zipper pull molds, thereby improving production efficiency and product quality.

[0004] This device is an improvement on the traditional mold, adding two small ejector plates and a seesaw. The mold is mainly composed of components such as plate A, plate B, plate C, mold base D, small ejector plate E, large ejector plate F, base plate G, and seesaw H.

[0005] Plate A is used to install the mold nozzle and fix the mold to the injection molding machine with screws or pressure plates, so that the mold nozzle is aligned with the machine nozzle to achieve product injection molding.

[0006] Plates B and C together form the product cavity. Plate B has guide pillars, and plate C has guide sleeves, return pins, ejector pins, and other accessories. Plate B is fixed to plate A with screws and serves as the fixed mold, stationary on the machine. Plate C moves with the machine and serves as the moving mold.

[0007] The D-shaped mold foot is used to support the entire mold. Through precise machine processing calculations, the position of the H-shaped seesaw and the product ejection distance are reserved to ensure that the product can completely detach from the mold.

[0008] E. Some ejector pins are fixed on the small ejector plate. During the ejection process of the large ejector plate, they first move synchronously with the large ejector plate for a certain distance. Then, the ejection is accelerated by the action of the H seesaw, so that the product leaves the mold faster and more stably.

[0009] The large ejector plate (F) fixes most of the ejector pins and the seesaw (H). After injection molding, the ejector rod of the injection molding machine pushes the large ejector plate to perform the product demolding movement.

[0010] The base plate G is fixed to the machine, and the D mold foot and C plate are connected and fixed by screws, which plays a role in stabilizing the mold structure.

[0011] H, the seesaw, utilizes the lever principle and is fixed to the large ejector plate F. When the large ejector plate moves to a certain position, H, the seesaw, is subjected to force and moves, which in turn pries the small ejector plate E to accelerate its movement, thereby achieving rapid and stable demolding of the product.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By adding a small ejector plate and a seesaw, the problem of unstable demolding caused by multiple angled ejector inserts in the one-piece pull head mold is effectively solved. The product can be released from the mold faster and more stably, improving production efficiency, reducing product damage caused by demolding problems, lowering production costs, and ensuring the normal operation of the mold. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

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

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

[0017] In the picture:

[0018] Plate A 1, Plate B 2, Plate C 3, Mold foot D 4, Small ejector plate E 5, Large ejector plate F 6, Base plate G 7, Seesaw H 8. Detailed Implementation

[0019] 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.

[0020] Example 1

[0021] like Figure 1-2 As shown;

[0022] Accelerated demolding device for plastic one-piece pull head mold.

[0023] This implementation plan addresses the technical problems existing in the prior art, such as those disclosed in the background section above: "In the injection molding process of plastic products, the demolding process is crucial. For plastic products with complex structures and numerous angled ejector inserts, such as one-piece zipper pulls, traditional mold structures face many challenges during demolding. Traditional molds typically have only two large ejector plates, and their ejection distance is limited by the angled ejectors, causing the product to be unable to stably detach from the cavity. In actual production, this unstable demolding prevents the mold from working properly, not only reducing production efficiency but also potentially causing product damage and increasing production costs, failing to meet the high-efficiency and high-quality production requirements of modern plastic products." Considering practical application, this problem is clearly a real and difficult-to-solve issue. Therefore, to solve this technical problem, an accelerated demolding device for one-piece plastic zipper pull molds is provided.

[0024] like Figure 1-2 As shown in the figure;

[0025] Based on the above, the components include plate A, plate B, plate C, mold base D, small ejector plate E, large ejector plate F, base plate G, and seesaw H. Plate A is used to install the mold nozzle and fix it on the injection molding machine. Plates B and C together form the product cavity, with plate B connected and fixed to plate A, and plate C moving with the machine. Mold base D is used to support the mold and reserves space for seesaw H and the product ejection distance.

[0026] E. A portion of the ejector pins are fixed on the small ejector plate E, which can move synchronously with the large ejector plate F and be accelerated out under the action of the seesaw H.

[0027] The F large ejector plate fixes most of the ejector pins and the H seesaw, which is driven by the ejector rod of the injection molding machine; the G base plate is fixed on the machine and connects the D mold foot and the C plate; the H seesaw is fixed on the F large ejector plate and uses the lever principle to pry the E small ejector plate to accelerate its movement.

[0028] Plate B is equipped with guide posts, and plate C is equipped with guide sleeves, return pins, and ejector pins that mate with the guide posts.

[0029] Plate A is fixed to the injection molding machine with screws or a pressure plate.

[0030] The base plate G is fixed to the mold feet D and plate C by screws.

[0031] Mold Installation: First, embed the mold nozzle into plate A. Then, use screws or clamping plates to fix plate A to the injection molding machine, ensuring the mold nozzle is accurately aligned with the machine's injection nozzle. Next, fix plate B to plate A with screws, completing the installation of the fixed mold section. Then, assemble plate C, mold base D, and base plate G. The guide sleeve on plate C mates with the guide post on plate B. Mold base D supports the entire mold set. Base plate G is fixed to the machine and connects mold base D and plate C.

[0032] Ejector plate and seesaw installation: Fix most of the ejector pins and the H seesaw to the F large ejector plate, and fix some ejector pins to the E small ejector plate. Install the E small ejector plate and the F large ejector plate in the corresponding positions of the mold so that they can move synchronously in the initial state.

[0033] Injection and Demolding Process: During injection, molten plastic is injected into the cavity composed of plates B and C through the machine nozzle and mold nozzle. After cooling and solidification, the injection molding machine ejector pins push the large ejector plate F. In the initial ejection stage, the small ejector plate E moves synchronously with the large ejector plate F. When the large ejector plate F moves to a certain position, the seesaw plate H is subjected to force, using the lever principle to pry the small ejector plate E to accelerate its movement. The ejector pins on the small ejector plate E and the large ejector plate F work together to make the product quickly and stably detach from the mold cavity.

[0034] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for accelerating demolding of a plastic one-piece zipper pull mold, characterized in that, It includes plate A (1), plate B (2), plate C (3), mold foot D (4), small ejector plate E (5), large ejector plate F (6), base plate G (7), and seesaw H (8); plate A (1) is used to install the mold nozzle and fix it on the injection molding machine; plate B (2) and plate C (3) together form the product cavity, plate B (2) is connected and fixed on plate A (1), and plate C (3) moves with the machine; mold foot D (4) is used to support the mold and reserve the position of seesaw H (8) and the product ejection distance.

2. The accelerated demolding device for plastic one-piece zipper pull mold according to claim 1, characterized in that, The small ejector plate (5) has a fixed ejector pin that can move synchronously with the large ejector plate (6) and be accelerated out under the action of the seesaw (8).

3. The accelerated demolding device for plastic one-piece zipper pull mold according to claim 1, characterized in that: The F large ejector plate (6) fixes most of the ejector pins and the H seesaw (8), and is driven by the ejector rod of the injection molding machine; the G base plate (7) is fixed on the machine and connects the D mold foot (4) and the C plate (3); the H seesaw (8) is fixed on the F large ejector plate (6) and uses the lever principle to pry the E small ejector plate (5) to accelerate the movement.

4. The accelerated demolding device for plastic one-piece zipper pull mold according to claim 1, characterized in that: The B plate (2) is provided with a guide post, and the C plate (3) is provided with a guide sleeve, a return pin and a ejector pin that cooperate with the guide post.

5. The accelerated demolding device for plastic one-piece zipper pull mold according to claim 1, characterized in that: The A plate (1) is fixed to the injection molding machine by screws or pressure plates.

6. The accelerated demolding device for plastic one-piece zipper pull mold according to claim 1, characterized in that: The base plate G (7) is fixed to the mold base D (4) and the plate C (3) by screws.

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