A plastic mold facilitating demolding

Abstract

The utility model relates to mould technical field, especially a plastic mould convenient to demould, including bottom plate, all fixedly connected with support rod in bottom plate upper end four corners department, four support rod upper end common fixedly connected with the top plate, four support rod between common fixedly connected with the fixed mould component, the bottom plate upper end middle part fixedly connected with the ejection assembly, the top plate upper end inserts and installs the movable mould component, a plastic mould convenient to demould, after injection moulding is completed, the movable mould component resets, and the first cylinder drive ejector plate in the ejection assembly rises along the fixed mould body inner wall steadily, and the balanced telescopic rod guarantees the ejection process stability, can quickly ejects the shaped product from the fixed mould body, realizes automatic demoulding, does not need manual intervention, reduces the labor intensity, avoids the damage of manual demoulding to the product, improves production efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a plastic mold that is easy to demold. Background Technology

[0002] In the production and processing of plastic products, plastic molds are key equipment for achieving mass production and are widely used in many fields such as electronics, automobiles, home appliances, and medical devices. By injecting molten plastic raw materials into the mold cavity and allowing them to cool and solidify, a plastic product with a shape consistent with the cavity is obtained, which greatly improves the production efficiency and consistency of plastic products.

[0003] However, with traditional plastic molds, after the plastic product has cooled and solidified, there is often a certain degree of adhesion or friction between the product and the inner wall of the mold cavity. This often requires manual demolding with the aid of tools. This manual demolding method is not only labor-intensive and inefficient, but also prone to causing scratches, deformation, or even damage to the product due to improper operation, thus affecting product quality. Therefore, we have introduced a plastic mold that facilitates demolding. Utility Model Content

[0004] The main objective of this invention is to provide a plastic mold that facilitates demolding, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A plastic mold for easy demolding includes a base plate, with support rods fixedly connected to the four corners of the upper part of the base plate, a top plate fixedly connected to the upper ends of the four support rods, a fixed mold assembly fixedly connected between the four support rods, an ejection assembly fixedly connected to the middle of the upper part of the base plate, and a moving mold assembly inserted into the upper part of the top plate.

[0007] Preferably, the ejection assembly includes a fixed plate, a first cylinder is fixedly installed at the middle of the upper part of the fixed plate, an ejection plate is fixedly installed at the output end of the first cylinder, a balance telescopic rod is fixedly connected to each of the four corners of the lower end of the ejection plate, and the lower ends of the four balance telescopic rods are respectively fixedly connected to the four corners of the upper end of the fixed plate. The lower end of the fixed plate is fixedly connected to the upper end of the base plate.

[0008] By adopting the above technical solution: the first cylinder can drive the ejector plate to achieve stable ejection action, and the balance telescopic rod can ensure the balance of the ejector plate when it rises and falls, avoid tilting during the ejection process, and improve demolding stability.

[0009] Preferably, the fixed mold assembly includes a fixed mold body, the lower inner wall of the fixed mold body has an ejection hole that passes through both the inside and outside in the middle, the lower inner wall of the fixed mold body has movable holes that pass through both the inside and outside in the four corners, the upper edge of the fixed mold body has a sealing groove, and the fixed mold body is fixedly connected between four support rods.

[0010] By adopting the above technical solution, the sealing groove can work with the moving mold assembly to achieve mold closing sealing, ensuring the sealing performance of the injection molding process.

[0011] Preferably, the output end of the first cylinder is movably sleeved in the ejector hole, and the upper parts of the four balance telescopic rods are respectively movably sleeved in the corresponding movable holes.

[0012] By adopting the above technical solution, the first cylinder output end and the balance telescopic rod are respectively matched with the ejection hole and the movable hole, which not only ensures the normal movement of each component of the ejection assembly, but also limits its movement trajectory, ensuring that the ejection action is accurate and orderly.

[0013] Preferably, the ejector plate is movably sleeved within the fixed mold body, and the outer surface of the ejector plate is in close contact with the inner wall surface of the fixed mold body without any gaps.

[0014] By adopting the above technical solution, the tight fit between the ejector plate and the fixed mold body can prevent molten plastic from leaking out of the gap during injection, ensuring molding quality. At the same time, it can be evenly stressed during ejection, smoothly pushing out the molded plastic.

[0015] Preferably, the moving mold assembly includes a second cylinder, the output end of which is fixedly mounted with a moving mold body, a sealing frame is fixedly connected to the lower edge of the moving mold body, two balance guide sliders are fixedly connected to the left and right ends of the moving mold body, an injection pipe is inserted and fixedly connected to the right end of the moving mold body at a position between the corresponding two balance guide sliders, a switching valve is movably installed on the outer surface of the injection pipe, the lower end of the second cylinder is fixedly connected to the upper end of the top plate, and the output end of the second cylinder passes through the upper end of the top plate and extends to the lower end of the top plate.

[0016] By adopting the above technical solution: the second cylinder can drive the moving mold body to complete the mold closing and opening actions, the sealing frame enhances the mold closing sealing performance, the balanced guide slider improves the moving stability of the moving mold body, the injection pipe and the switch valve facilitate the control of the plastic injection process, and the overall structure meets the requirements of injection molding and mold opening.

[0017] Preferably, the size of the sealing frame is adapted to the size of the sealing groove, and the positions of the sealing frame and the sealing groove are distributed vertically in correspondence.

[0018] By adopting the above technical solution, the matching of the sealing frame and the sealing groove can form an effective seal when the mold is closed, preventing molten plastic from overflowing the cavity and ensuring the molding integrity of the plastic product.

[0019] Preferably, each of the four balance guide sliders has a through guide hole at its upper end, and the four balance guide sliders are movably sleeved on the corresponding support rods through the corresponding guide holes.

[0020] By adopting the above technical solution, the cooperation between the balanced guide slider and the support rod provides accurate guidance for the up and down movement of the moving mold body, avoids the moving mold body from shifting during the movement, and ensures the accuracy of alignment with the fixed mold assembly when the mold is closed.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In this invention, the fixed mold assembly and the moving mold assembly cooperate. When the mold is closed, the second cylinder drives the moving mold body to move downward. The sealing frame and the sealing groove are sealed together. The balance guide slider slides smoothly along the support rod to ensure good cavity sealing. After injection molding is completed, the moving mold assembly is reset. The first cylinder in the ejection assembly drives the ejection plate to rise smoothly along the inner wall of the fixed mold body. The balance telescopic rod ensures the stability of the ejection process. The molded product can be quickly ejected from the fixed mold body, realizing automatic demolding without manual intervention. This reduces labor intensity, avoids damage to the product caused by manual demolding, and improves production efficiency and product quality. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a plastic mold that facilitates demolding according to this utility model;

[0024] Figure 2 This is a schematic diagram of the fixed mold assembly of a plastic mold that facilitates demolding, according to the present invention.

[0025] Figure 3 This is a schematic diagram of the ejection assembly of a plastic mold that facilitates demolding, according to the present invention.

[0026] Figure 4 This is a schematic diagram of the combined connection structure of the ejection assembly and the fixed mold assembly of a plastic mold that is easy to demold (the fixed mold body is cut out).

[0027] Figure 5 This is a schematic diagram of the moving mold assembly of a plastic mold that facilitates demolding, according to the present invention.

[0028] Figure 6 This is a cross-sectional view of the moving mold assembly of a plastic mold that is easy to demold according to the present invention (the moving mold body is cut out).

[0029] In the diagram: 1. Base plate; 2. Support rod; 3. Top plate; 4. Fixed mold assembly; 5. Ejection assembly; 6. Moving mold assembly; 41. Fixed mold body; 42. Ejection hole; 43. Movable hole; 44. Sealing groove; 51. Fixing plate; 52. First cylinder; 53. Ejection plate; 54. Balance telescopic rod; 61. Second cylinder; 62. Moving mold body; 63. Sealing frame; 64. Balance guide slider; 65. Injection pipe; 66. Switch valve. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Please see Figure 1-6 This utility model provides a technical solution:

[0034] A plastic mold that is easy to demold includes a base plate 1, with support rods 2 fixedly connected to the four corners of the upper end of the base plate 1, a top plate 3 fixedly connected to the upper ends of the four support rods 2, a fixed mold assembly 4 fixedly connected between the four support rods 2, an ejection assembly 5 fixedly connected to the middle of the upper end of the base plate 1, and a moving mold assembly 6 inserted into the upper end of the top plate 3.

[0035] In this embodiment, the ejection assembly 5 includes a fixed plate 51, a first cylinder 52 is fixedly installed at the middle of the upper end of the fixed plate 51, an ejection plate 53 is fixedly installed at the output end of the first cylinder 52, and a balance telescopic rod 54 is fixedly connected to each of the four corners of the lower end of the ejection plate 53. The lower ends of the four balance telescopic rods 54 are respectively fixedly connected to the four corners of the upper end of the fixed plate 51, and the lower end of the fixed plate 51 is fixedly connected to the upper end of the base plate 1. The fixed mold assembly 4 includes a fixed mold body 41, and the lower inner wall surface of the fixed mold body 41 has a... The fixed mold body 41 has an ejector hole 42 that passes through both the inside and outside. At each of the four corners of the lower inner wall of the fixed mold body 41, there is a movable hole 43 that passes through both the inside and outside. A sealing groove 44 is formed at the upper edge of the fixed mold body 41. The fixed mold body 41 is fixedly connected between four support rods 2. The output end of the first cylinder 52 is movably fitted into the ejector hole 42, and the upper parts of the four balance telescopic rods 54 are movably fitted into their corresponding movable holes 43. The ejector plate 53 is movably fitted into the fixed mold body 41, and the outer surface of the ejector plate 53 is flush with the fixed mold body. The inner wall of body 41 is in close contact without gaps; the moving mold assembly 6 includes a second cylinder 61, the output end of the second cylinder 61 is fixedly mounted with a moving mold body 62, a sealing frame 63 is fixedly connected to the lower edge of the moving mold body 62, two balance guide sliders 64 are fixedly connected to the left and right ends of the moving mold body 62, an injection pipe 65 is inserted and fixedly connected to the right end of the moving mold body 62 and located between the corresponding two balance guide sliders 64, a switch valve 66 is movably installed on the outer surface of the injection pipe 65, the lower end of the second cylinder 61 is fixedly connected to the upper end of the top plate 3, and the output end of the second cylinder 61 passes through the upper end of the top plate 3 and extends to the lower end of the top plate 3; the size of the sealing frame 63 is adapted to the size of the sealing groove 44, and the positions of the sealing frame 63 and the sealing groove 44 are distributed vertically; the upper ends of the four balance guide sliders 64 are all opened with vertically penetrating guide holes, and the four balance guide sliders 64 are movably sleeved on the corresponding support rods 2 through the corresponding guide holes.

[0036] It should be noted that this utility model is a plastic mold that is easy to demold. In use, the second cylinder 61 drives the moving mold body 62 to move downward, so that the sealing frame 63 is inserted into the sealing groove 44 to complete the mold closing. The balance guide slider 64 slides along the support rod 2 to ensure smooth movement. Molten plastic is injected into the cavity formed by the fixed mold body 41 and the moving mold body 62 through the injection pipe 65. The switch valve 66 controls the injection process. After the plastic cools and solidifies, the second cylinder 61 drives the moving mold body 62 to reset upward. Then, the first cylinder 52 drives the ejector plate 53 to move upward. The balance telescopic rod 54 extends and retracts synchronously along the movable hole 43 to keep the ejection smooth. The ejector plate 53 ejects the molded plastic from the fixed mold body 41. After demolding is completed, the first cylinder 52 drives the ejector plate 53 to reset.

[0037] 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 illustrative of the principles of this 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A plastic mold for easy demolding, comprising a base plate (1), characterized in that: Support rods (2) are fixedly connected to the four corners of the upper end of the base plate (1). The upper ends of the four support rods (2) are fixedly connected to the top plate (3). The four support rods (2) are fixedly connected to the fixed mold assembly (4). The middle of the upper end of the base plate (1) is fixedly connected to the ejection assembly (5). The upper end of the top plate (3) is interspersed with the moving mold assembly (6). The moving mold assembly (6) includes a second cylinder (61), the output end of which is fixedly mounted with a moving mold body (62), a sealing frame (63) is fixedly connected to the lower edge of the moving mold body (62), two balance guide sliders (64) are fixedly connected to the left and right ends of the moving mold body (62), an injection pipe (65) is inserted and fixedly connected to the right end of the moving mold body (62) and located between the two corresponding balance guide sliders (64), a switch valve (66) is inserted and movably mounted on the outer surface of the injection pipe (65), the lower end of the second cylinder (61) is fixedly connected to the upper end of the top plate (3), and the output end of the second cylinder (61) passes through the upper end of the top plate (3) and extends to the lower end of the top plate (3); The fixed mold assembly (4) includes a fixed mold body (41), an ejection hole (42) with through-holes is opened in the middle of the lower inner wall surface of the fixed mold body (41), and movable holes (43) with through-holes are opened at the four corners of the lower inner wall surface of the fixed mold body (41). A sealing groove (44) is opened at the upper edge of the fixed mold body (41). The fixed mold body (41) is fixedly connected between four support rods (2). The ejection assembly (5) includes a fixed plate (51), a first cylinder (52) is fixedly installed in the middle of the upper end of the fixed plate (51), an ejection plate (53) is fixedly installed at the output end of the first cylinder (52), and a balance telescopic rod (54) is fixedly connected at the four corners of the lower end of the ejection plate (53). The lower ends of the four balance telescopic rods (54) are respectively fixedly connected to the four corners of the upper end of the fixed plate (51), and the lower end of the fixed plate (51) is fixedly connected to the upper end of the base plate (1).

2. The plastic mold for easy demolding according to claim 1, characterized in that: The output end of the first cylinder (52) is movably sleeved in the ejector hole (42), and the upper parts of the four balance telescopic rods (54) are respectively movably sleeved in the corresponding movable holes (43).

3. The plastic mold for easy demolding according to claim 1, characterized in that: The ejector plate (53) is movably sleeved inside the fixed mold body (41), and the outer surface of the ejector plate (53) is in close contact with the inner wall surface of the fixed mold body (41) without leaving any gaps.

4. A plastic mold for easy demolding according to claim 1, characterized in that: The size of the sealing frame (63) is matched with the size of the sealing groove (44), and the positions of the sealing frame (63) and the sealing groove (44) are distributed vertically in correspondence.

5. A plastic mold for easy demolding according to claim 1, characterized in that: Each of the four balance guide sliders (64) has a guide hole that passes through from top to bottom at the upper end. The four balance guide sliders (64) are movably sleeved on the corresponding support rods (2) through the corresponding guide holes.

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