Product forming die with external threads

Abstract

The utility model belongs to the field of molds, and provides a product forming mold with external threads, which comprises a top plate, an upper mold plate, a lower mold plate, an inner mold core, a support plate, an ejector plate, an ejector and a bottom plate, the inner mold core is mounted between the lower mold plate and the upper mold plate, is matched with the upper mold plate and is used for molding an injection product; a sliding groove is formed in the upper die plate, two sliding blocks are connected into the sliding groove in a sliding mode, and internal threads are arranged on the opposite faces of the two sliding blocks inwards. When the two sliding blocks are folded, external threads of the injection molding product are formed through the internal threads; the top plate is connected with two inclined guide columns which are movably inserted into the sliding blocks respectively; the top plate moves upwards, and the inclined guide column drives the two sliding blocks to move relatively. During mold closing, the two sliding blocks are closed through the inclined guide column, so that a product and a thread are formed; during mold splitting, the two sliding blocks are driven by the inclined guide columns to move towards the two sides for mold opening; rapid mold opening and closing of the mold are achieved, and the forming and demolding efficiency of a threaded product is improved.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a product molding mold with external threads. Background Art

[0002] In modern industrial production, products with threads are widely used in various types of machinery, equipment and tools. These products usually need to be formed through processes such as injection molding and die casting. However, traditional threaded product molding molds often have low efficiency during the mold opening and closing processes. Especially for complex thread structures, due to the limitations of mold design and manufacturing, the demoulding process may take a lot of time, affecting production efficiency. In addition, during the molding process of traditional molds, if the operation is improper or the mold design is unreasonable, it may also lead to problems such as insufficient product thread accuracy and poor surface quality.

[0003] In order to solve the above problems, there are some improvement schemes in the prior art. For example, a rotating mechanism or a special ejection mechanism is used to assist in the demoulding of threaded products. However, these schemes still have disadvantages such as complex structure, high manufacturing cost, and inconvenient maintenance to a certain extent. Therefore, how to design a mold with a simple structure, convenient operation, and the ability to quickly realize the molding and demoulding of threaded products has become a problem to be solved in the current technical field. Utility Model Content

[0004] The utility model discloses a product forming die with external threads, which is used to solve relevant technical problems in the background technology.

[0005] The technical solution provided by the utility model is as follows: a product forming mold with external threads, comprising: a top plate, an upper mold plate, a lower mold plate, an inner mold core, a support plate, an ejector plate, an ejector, and a bottom plate, wherein the top plate, the upper mold plate, the lower mold plate, the support plate, and the bottom plate are arranged in sequence from top to bottom;

[0006] The inner mold core is installed between the lower mold plate and the upper mold plate, and cooperates with the upper mold plate to form the injection molded product;

[0007] A sliding groove is provided in the upper template, and two sliders are slidably connected in the sliding groove, and internal threads are provided inwardly on the opposite surfaces of the two sliders; when the two sliders are closed, the external threads of the injection molded product are formed through the internal threads;

[0008] Two inclined guide pillars are connected to the top plate, and the inclined guide pillars are movably inserted into the sliding blocks respectively; when the top plate moves upward, the inclined guide pillars drive the two sliding blocks to move relative to each other.

[0009] Furthermore, the two inclined guide pillars are arranged in an "eight" shape.

[0010] Furthermore, two tightening blocks are connected under the top plate, and the two tightening blocks are on both sides of the two sliding blocks, and the surfaces of the tightening blocks and the sliding blocks that are opposite and in contact with each other are both inclined surfaces.

[0011] Furthermore, the inclined surface is parallel to the inclined guide column.

[0012] Furthermore, the sliding groove is opened downward from the surface of the upper template, the cross section of the sliding groove is an inverted T-shaped structure, and the cross section of the sliding block is an inverted T-shaped structure, which is clamped in the sliding groove.

[0013] Furthermore, a countersunk hole is opened in the upper template, and a screw is connected in the countersunk hole. One end of the screw passes through the countersunk hole and is connected to the top plate, and the other end of the screw is movable in the countersunk hole. There is a movable gap between the nut end of the screw and the countersunk hole; when the top plate moves upward and the nut interferes with the countersunk hole, the upper template is driven to move upward together.

[0014] Furthermore, a movable cavity is formed between the support plates, the ejector plate is movably arranged in the movable cavity, the ejector is connected to the ejector plate, and the ejector moves with the ejector plate to pass through the lower mold plate and the inner mold core to eject the injection molded product.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The product forming mold with external threads of the utility model, when closing the mold, the two slide blocks are closed by the inclined guide pins, so as to form the product and the threads; when separating the mold, the two slide blocks are driven to move to both sides to open the mold by the inclined guide pins; thus, the mold can be opened and closed quickly, and the efficiency of molding and demolding of threaded products is improved.

[0017] (2) In the product forming mold with external threads of the utility model, when the mold is closed, the clamping block contacts the inclined surface of the slider, which can hold the slider, ensuring the tightness of the two sliders after the mold is closed, thereby improving the production quality and the stability of mold production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the external structure of a product forming mold with external threads of the utility model;

[0019] Figure 2 It is a sectional stereoscopic diagram of a product forming mold with external threads of the utility model;

[0020] Figure 3 It is a cross-sectional view of a product forming mold with external threads of the utility model;

[0021] Figure 4 It is a cross-sectional view of the countersunk hole and the screw of the utility model.

[0022] The accompanying drawings are marked as follows: 1. top plate; 2. upper template; 3. lower template; 4. inner mold core; 5. support plate; 6. ejector plate; 7. ejector; 8. bottom plate; 9. sliding groove; 10. slider; 11. inclined guide column; 12. tightening block; 13. countersunk hole; 14. screw. DETAILED DESCRIPTION

[0023] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0024] like Figure 1-4 As shown, the utility model is a product molding mold with external threads, comprising: a top plate 1, an upper template 2, a lower template 3, an inner mold core 4, a support plate 5, an ejector plate 6, an ejector 7, and a bottom plate 8, wherein the top plate 1, the upper template 2, the lower template 3, the support plate 5, and the bottom plate 8 are arranged in sequence from top to bottom; the inner mold core 4 is installed between the lower template 3 and the upper template 2, and cooperates with the upper template 2 for molding injection molded products; an active cavity is formed between the support plates 5, the ejector plate 6 is movably arranged in the active cavity, the ejector 7 is connected to the ejector plate 6, and the ejector 7 moves with the ejector plate 6, passes through the lower template 3 and the inner mold core 4 to eject the injection molded product.

[0025] A sliding groove 9 is provided in the upper mold plate 2, and two sliders 10 are slidably connected in the sliding groove 9, and the opposite surfaces of the two sliders 10 are provided with internal threads inwardly; when the two sliders 10 are closed, the external threads of the injection molded product are formed by the internal threads; two inclined guide pillars 11 are connected to the top plate 1, and the inclined guide pillars 11 are movably inserted into the sliders 10 respectively; when the top plate 1 moves upward, the inclined guide pillars 11 drive the two sliders 10 to move relative to each other; when closing the mold, the two sliders 10 are closed by the inclined guide pillars 11, so as to form the product and the thread; when parting the mold, the two sliders 10 are driven to move to both sides to open the mold by the inclined guide pillars 11; the rapid opening and closing of the mold is realized, and the efficiency of molding and demolding of threaded products is improved.

[0026] In this embodiment, the two inclined guide pillars 11 are arranged in an "eight" shape. When the top plate 1 moves upward, the inclined guide pillars 11 drive the sliders 10 to separate to both sides respectively. When the top plate 1 moves downward, the inclined guide pillars 11 drive the sliders 10 to move inward and close. The purpose of demolding and closing the threaded part is achieved, thereby improving the production efficiency of external thread injection molding products.

[0027] In this embodiment, two tightening blocks 12 are connected under the top plate 1, and the two tightening blocks 12 are on both sides of the two sliding blocks 10. The surfaces of the tightening blocks 12 and the sliding blocks 10 that are opposite and in contact with each other are both inclined surfaces, and the inclined surfaces are parallel to the inclined guide pillars 11; when the top plate 1 moves downward, the inclined guide pillars 11 drive the sliding blocks 10 to move inward and close, and the tightening blocks 12 move downward with the top plate 1, and the inclined surfaces of the tightening blocks 12 contact with the inclined surfaces of the sliding blocks 10. When closing, the tightening blocks 12 contact with the sliding blocks 10, thereby ensuring the tightness of the two sliding blocks 10 after mold closing, and improving the production quality and the stability of mold production.

[0028] In this embodiment, the sliding groove 9 is opened downward from the surface of the upper template 2, and the cross-section of the sliding groove 9 is an inverted T-shaped structure. The cross-section of the slider 10 is an inverted T-shaped structure and is clamped in the sliding groove 9; by setting the sliding groove 9 and the slider 10 of the T-shaped structure, the slider 10 can only move laterally along the sliding groove 9, avoiding the slider 10 from moving up and down, thereby ensuring the stability of the movement of the slider 10.

[0029] In this embodiment, as shown in the figure, a countersunk hole 13 is opened in the upper template 2, and a screw 14 is connected in the countersunk hole 13. One end of the screw 14 passes through the countersunk hole 13 and is connected to the top plate 1, and the other end of the screw 14 is movable in the countersunk hole 13, and there is a movable gap between the nut end of the screw 14 and the countersunk hole 13; when the mold is opened, the top plate 1 moves upward, and the nut moves upward accordingly. When the nut interferes with the countersunk hole 13, the upper template 2 is driven to move upward together; by arranging the screw 14 and the countersunk hole 13, when demolding, the top plate 1, the tightening block 12, and the slider 10 are used to act first. When the two sliders 10 are separated first, the upper template 2 is driven to rise for demolding, thereby ensuring the stability of the demolding of the threaded part of the injection molded product.

[0030] Working principle: During demoulding, the top plate 1 moves upward, and the two sliders 10 are moved to both sides and separated by two inclined guide pillars 11. After the sliders 10 are separated, the upper template 2 is driven upward by screws 14 to complete demoulding; the ejector plate 6 drives the ejector 7 to move upward to eject the injection molded product.

[0031] In this application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0032] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A product forming mold with external threads, characterized in that: include: A top plate (1), an upper mold plate (2), a lower mold plate (3), an inner mold core (4), a support plate (5), an ejector plate (6), an ejector pin (7), and a bottom plate (8), wherein the top plate (1), the upper mold plate (2), the lower mold plate (3), the support plate (5), and the bottom plate (8) are arranged in sequence from top to bottom; The inner mold core (4) is installed between the lower mold plate (3) and the upper mold plate (2), and cooperates with the upper mold plate (2) to form the injection molded product; The upper mold plate (2) is provided with a sliding groove (9), and two sliders (10) are slidably connected in the sliding groove (9), and the two sliders (10) are provided with internal threads on the opposite surfaces inwardly; when the two sliders (10) are closed, the external threads of the injection molded product are formed through the internal threads; Two inclined guide columns (11) are connected to the top plate (1), and the inclined guide columns (11) are movably inserted into the sliders (10) respectively; when the top plate (1) moves upward, the inclined guide columns (11) drive the two sliders (10) to move relative to each other.

2. A product forming mold with external threads as claimed in claim 1, characterized in that: The two inclined guide pillars (11) are arranged in an "eight" shape.

3. A product forming mold with external threads as claimed in claim 2, characterized in that: Two tightening blocks (12) are connected under the top plate (1), and the two tightening blocks (12) are located on both sides of the two sliding blocks (10). The surfaces of the tightening blocks (12) and the sliding blocks (10) that are opposite and in contact with each other are both inclined surfaces.

4. A product forming mold with external threads as claimed in claim 3, characterized in that: The inclined surface is parallel to the inclined guide column (11).

5. A product forming mold with external threads as claimed in claim 1, characterized in that: The sliding groove (9) is opened downward from the surface of the upper template (2), the cross section of the sliding groove (9) is an inverted T-shaped structure, and the cross section of the sliding block (10) is an inverted T-shaped structure and is clamped in the sliding groove (9).

6. A product forming mold with external threads as claimed in claim 1, characterized in that: A countersunk hole (13) is provided in the upper template (2), and a screw (14) is connected to the countersunk hole (13). One end of the screw (14) passes through the countersunk hole (13) and is connected to the top plate (1), and the other end of the screw (14) is movable in the countersunk hole (13). There is a movable gap between the nut end of the screw (14) and the countersunk hole (13); when the top plate (1) moves upward and the nut interferes with the countersunk hole (13), the upper template (2) is driven to move upward together.

7. A product forming mold with external threads as claimed in claim 1, characterized in that: A movable cavity is formed between the support plates (5), the ejector plate (6) is movably arranged in the movable cavity, the ejector pin (7) is connected to the ejector plate (6), and the ejector pin (7) moves with the ejector plate (6) to pass through the lower mold plate (3) and the inner mold core (4) to eject the injection molded product.

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