Fixed mold anti-sticking springing structure

Abstract

The utility model discloses an anti-sticking springing structure of a fixed mold, which comprises a fixed mold insert and a springing piece, a fixed plate is arranged on the outer side of the fixed mold, a transmission cavity is arranged in the fixed plate, the springing piece is movably arranged in the transmission cavity, a through hole which penetrates through the side wall of the fixed mold to enable the cavity of the fixed mold to be communicated with the outside is arranged on the side wall of the fixed mold, and the fixed mold insert is arranged in the through hole. One end of the transmission cavity penetrates through the fixed plate and is communicated with the through hole, the fixed mold insert is movably mounted in the through hole and seals the through hole, one end of the fixed mold insert extends into the fixed mold cavity and abuts against the movable mold for limiting, and the other end of the fixed mold insert abuts against the springing piece in the transmission cavity. According to the fixed mold anti-sticking springing structure disclosed by the utility model, through reasonable and reliable structural matching, the springing piece and the fixed mold insert are driven by the spring, and a product can be quickly ejected out of the deep cavity after molding is finished, so that the sticking product is quickly demolded, and the demolding stability of the product is improved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a fixed mold anti-sticking elastic structure. Background Technology

[0002] Injection molds are tools used in industrial fields to produce plastic products. They generally include a moving mold (male mold) and a fixed mold (female mold). During molding, the male and female molds fit tightly together and use the cavity on the fitted side to shape the product. After molding, the male and female molds are separated for demolding. However, during demolding, products with deep cavities or denser plastic areas often have strong clamping forces, causing plastic to stick to the mold and making demolding difficult. Forcing demolding can easily damage the product.

[0003] Currently, in order to reduce the difficulty of demolding, ejector pins are usually set on one side of the moving mold. During demolding, the ejector pins are manually controlled to push out, making it easier for the product to separate from the moving mold. However, due to the differences in structure and installation method between the fixed mold and the moving mold, it is difficult for the ejector pins used for the moving mold to be compatible with the fixed mold. This also means that the fixed mold usually does not have an ejection device, making it difficult to demold when film sticks to the fixed mold.

[0004] Therefore, considering the aforementioned technical problems, it is necessary to provide a new technical solution. Utility Model Content

[0005] The purpose of this invention is to provide an anti-sticking elastic structure that can assist in the rapid demolding of the fixed mold, reduce the phenomenon of mold sticking, and improve product quality.

[0006] To solve the above-mentioned technical problems, this utility model provides a fixed mold anti-sticking elastic structure, the specific technical solution of which is as follows:

[0007] A fixed mold anti-sticking elastic structure includes a fixed mold insert and an elastic member. A fixed plate is installed on the outer side of the fixed mold, and a transmission cavity is opened in the fixed plate. The elastic member is movably installed in the transmission cavity. A through hole is opened in the side wall of the fixed mold to connect the fixed mold cavity with the outside. One end of the transmission cavity penetrates the fixed plate and communicates with the through hole. The fixed mold insert is movably installed in the through hole and closes the through hole. One end of the fixed mold insert extends into the fixed mold cavity and abuts against the moving mold for limitation. The other end of the fixed mold insert abuts against the elastic member in the transmission cavity. In the mold-opening and mold-separated state, the fixed mold insert is driven by the elastic member to move one side of the fixed mold cavity.

[0008] Preferably, the transmission cavity is further provided with a spring, which is mounted on the spring member to drive the spring member to move along the transmission cavity.

[0009] Preferably, a limiting hole is provided on the side of the fixed plate away from the fixed mold. The limiting hole is coaxial with the transmission cavity and is connected to the end of the transmission cavity away from the fixed mold. The size of the limiting hole is larger than the size of the transmission cavity, and a fixing plug is detachably installed in the limiting hole.

[0010] Preferably, the spring-loaded component includes a push rod, a transmission seat, and a mounting rod. The transmission seat is axially perpendicular to the transmission cavity. The push rod is fixedly connected to the side of the transmission seat near the fixed mold to facilitate lifting the fixed mold insert. The mounting rod is fixedly connected to the side of the transmission seat away from the fixed mold. The spring is sleeved on the mounting rod, and under normal conditions, the length of the spring is greater than the length of the mounting rod.

[0011] Preferably, the fixed plate has a lifting hole on the side near the fixed mold for the ejector rod to pass through. The lifting hole is located between the transmission cavity and the through hole of the fixed mold, and the transmission cavity is connected to the through hole of the fixed mold through the lifting hole. The diameter of the lifting hole is smaller than the diameter of the transmission cavity and the diameter of the ejector rod is not greater than the diameter of the lifting hole.

[0012] Preferably, the fixing plug is a hexagonal socket plug.

[0013] The mold-fixing anti-sticking elastic structure of this utility model has the following beneficial effects:

[0014] The fixed mold anti-sticking elastic structure of this utility model, through reasonable and reliable structural matching, uses a spring to drive the elastic part and the fixed mold insert, which can quickly push the product out of the deep cavity after molding, so that the sticking product can be quickly demolded, and the demolding stability of the product is improved.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an exploded schematic diagram of a fixed mold anti-sticking elastic structure.

[0018] Among them, 1-fixed mold insert; 2-fixed plate; 21-transmission cavity; 22-lifting hole; 23-limiting hole; 3-spring element; 31-push rod; 32-transmission seat; 33-mounting rod; 4-spring; 5-fixing plug. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Example

[0020] Please see Figure 1 A fixed mold anti-sticking elastic structure includes a fixed mold insert 1 and an elastic member 3. A fixed plate 2 is installed on the outside of the fixed mold, and a transmission cavity 21 is opened in the fixed plate. The elastic member 3 is movably installed in the transmission cavity. A through hole is opened in the side wall of the fixed mold to connect the fixed mold cavity with the outside. One end of the transmission cavity penetrates the fixed plate and communicates with the through hole. The fixed mold insert is movably installed in the through hole and closes the through hole. One end of the fixed mold insert extends into the fixed mold cavity and abuts against the moving mold for limitation. The other end of the fixed mold insert abuts against the elastic member in the transmission cavity. When the fixed mold and the moving mold are separated, the fixed mold insert is driven by the elastic member to move one side of the fixed mold cavity.

[0021] The transmission cavity 21 is also provided with a spring 4, which is installed on the spring member 3 to drive the spring member to move along the transmission cavity.

[0022] The fixed plate 2 has a limiting hole 23 on the side away from the fixed mold. The limiting hole is coaxial with the transmission cavity 21 and is connected to the end of the transmission cavity 21 away from the fixed mold. The size of the limiting hole is larger than the size of the transmission cavity. A fixing plug 5 is detachably installed in the limiting hole.

[0023] The spring element 3 includes a push rod 31, a transmission seat 32, and a mounting rod 33. The transmission seat is axially perpendicular to the transmission cavity. The push rod 31 is fixedly connected to the side of the transmission seat near the fixed mold to facilitate lifting the fixed mold insert 1. The mounting rod 33 is fixedly connected to the side of the transmission seat away from the fixed mold. The spring is sleeved on the mounting rod, and under normal conditions, the length of the spring is greater than the length of the mounting rod. When the spring is in operation, one end abuts against the fixing plug, and the other end abuts against the transmission seat.

[0024] The fixed plate 2 is also provided with a lifting hole 22 on the side near the fixed mold for the ejector rod to pass through. The lifting hole is located between the transmission cavity and the fixed mold through hole, and the transmission cavity is connected to the fixed mold through hole through the lifting hole. The diameter of the lifting hole is smaller than the diameter of the transmission cavity and the diameter of the ejector rod is not greater than the diameter of the lifting hole.

[0025] The fixing plug 5 is specifically an internal hexagonal plug.

[0026] In this embodiment, the fixed mold anti-sticking elastic structure, when the fixed mold and the moving mold are molded together, is affected by the moving mold. The fixed mold insert 1 retracts into the through hole on the fixed mold, and at the same time, the ejector rod 31 is squeezed to make the elastic member 3 be in a compressed state in the transmission cavity 21. When the molding is completed and the mold is opened, the fixed mold and the moving mold separate, the fixed mold insert loses the pressure of the moving mold, and under the action of the spring 4, the elastic member 3 lifts the fixed mold insert, so that the fixed mold insert is ejected to one side of the mold cavity, thereby achieving the effect of ejecting the product.

[0027] The beneficial effects of this utility model are: through reasonable and reliable structural matching, and by using spring-driven elastic parts and fixed mold inserts, the product can be quickly ejected from the deep cavity after molding, so that the sticky product can be quickly demolded, thus improving the stability of product demolding.

[0028] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications and variations to the above embodiments within the scope of the present invention.

Claims

1. A fixed-mold anti-sticking elastic structure, characterized in that: The device includes a fixed mold insert (1) and a spring-loaded component (3). A fixed plate (2) is installed on the outside of the fixed mold, and a transmission cavity (21) is opened in the fixed plate. The spring-loaded component (3) is movably installed in the transmission cavity. A through hole is opened on the side wall of the fixed mold to connect the fixed mold cavity with the outside. One end of the transmission cavity penetrates the fixed plate and communicates with the through hole. The fixed mold insert is movably installed in the through hole and closes the through hole. One end of the fixed mold insert extends into the fixed mold cavity and abuts against the moving mold to limit its position. The other end of the fixed mold insert abuts against the spring-loaded component in the transmission cavity. When the fixed mold and the moving mold are separated, the fixed mold insert is driven by the spring-loaded component to move one side of the fixed mold cavity.

2. The fixed mold anti-sticking elastic structure according to claim 1, characterized in that: A spring (4) is also provided in the transmission cavity (21), and the spring is installed on the spring member (3) to drive the spring member to move along the transmission cavity.

3. The fixed mold anti-sticking elastic structure according to claim 1, characterized in that: The fixed plate (2) has a limiting hole (23) on the side away from the fixed mold. The limiting hole is coaxial with the transmission cavity (21) and the limiting hole is connected to the end of the transmission cavity (21) away from the fixed mold. The size of the limiting hole is larger than the size of the transmission cavity. A fixing plug (5) is detachably installed in the limiting hole.

4. The fixed mold anti-sticking elastic structure according to claim 2, characterized in that: The spring (3) includes a push rod (31), a transmission seat (32) and a mounting rod (33). The transmission seat is perpendicular to the axis of the transmission cavity. The push rod (31) is fixedly connected to the side of the transmission seat near the fixed mold to facilitate lifting the fixed mold insert (1). The mounting rod (33) is fixedly connected to the side of the transmission seat away from the fixed mold. The spring is sleeved on the mounting rod, and the length of the spring is greater than the length of the mounting rod under normal conditions.

5. The fixed mold anti-sticking elastic structure according to claim 4, characterized in that: The fixed plate (2) is also provided with a lifting hole (22) for the ejector rod to pass through on the side near the fixed mold. The lifting hole is located between the transmission cavity and the fixed mold through hole, and the transmission cavity is connected to the fixed mold through hole through the lifting hole. The diameter of the lifting hole is smaller than the diameter of the transmission cavity and the diameter of the ejector rod is not greater than the diameter of the lifting hole.

6. The fixed mold anti-sticking elastic structure according to claim 3, characterized in that: The fixing plug (5) is specifically an internal hexagonal plug.

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