A split mold for a netted product

Abstract

The utility model relates to mould technical field, concretely relates to a parting mould for the product with mesh, including upper module, the upper module lower part is provided with upper mould insert, the lower part of upper module is provided with lower module, the lower module upper part is provided with the lower mould insert of cooperation with upper mould insert setting, the lower mould insert is penetrated with lower mould insert needle, the accommodating space for the product body of forming with mesh is arranged between upper mould insert with lower mould insert, the upper part in mesh is provided with the upper lug connected with upper mould insert, lower mould insert upper end stretches into the mesh and is in contact with the lower end surface of upper lug. The utility model discloses in mesh parting, the upper part of mesh stretches into the upper lug, lower mould insert upper end stretches into the lower part of mesh and is in contact with the lower end surface of upper lug, the lower end surface of upper lug and lower mould insert upper end surface contact each other, the product body can form mesh structure after forming, improves the yield of product.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a parting mold for products with mesh. Background Technology

[0002] In the mold manufacturing industry, products with mesh structures have certain requirements for surface precision and appearance quality.

[0003] On December 11, 2020, a patent with publication number CN112060459A, entitled "A Method for Eliminating Insert Lines in Automotive Interior Injection Molds," was published. The method includes the following steps: S1: A fixing and locking device is designed on the back of the mold insert position; S2: The insert size and mold hole size are controlled; S3: The insert undergoes deep cryogenic treatment for 30-40 minutes; S4: After the insert is removed from the cryogenic tank, it is installed into the mold hole within 3-5 seconds; S5: The top of the insert is CNC machined and cut off; S6: Subsequent etching / laser processing is used to create a textured finish. This invention can eliminate insert lines, is low-cost, technologically mature, and easy to operate. However, the above method uses a cutting device to remove insert lines from the product surface, which can easily affect the product's appearance. The cutting process also increases the product's processing steps and time costs, and each cutting operation carries the risk of accumulating processing errors, ultimately leading to a lower product yield. Summary of the Invention

[0004] In view of this, the purpose of this utility model is to propose a parting mold for products with mesh to solve the problem of reducing product yield.

[0005] To achieve the above objectives, this utility model provides a parting mold for products with mesh, comprising an upper module, an upper mold insert at the lower part of the upper module, a lower module below the upper module, a lower mold insert at the upper part of the lower module that cooperates with the upper mold insert, a lower mold insert pin penetrating through the lower mold insert, a receiving space for forming a product body with mesh between the upper mold insert and the lower mold insert, an upper protrusion connected to the upper mold insert at the upper part of the mesh, and the upper end of the lower mold insert pin extending into the mesh and abutting against the lower end face of the upper protrusion.

[0006] Optionally, the upper mold insert and the upper protrusion are integrally formed.

[0007] Optionally, the upper end of the lower die insert is provided with a lower protrusion that extends completely into the mesh.

[0008] Optionally, the upper end face radius of the upper convex head is 0.08 to 0.2 mm larger than the lower end face radius.

[0009] Optionally, the radius of the upper end face of the upper protrusion is 0.1 mm larger than the radius of the lower end face.

[0010] Optionally, the sides of both the upper and lower protrusions are inclined, with the inclination angle of the upper protrusion being greater than that of the lower protrusion.

[0011] Optionally, the angle between the side of the upper convex head and the vertical line is in the range of 5 degrees to 10 degrees, and the angle between the side of the lower convex head and the vertical line is in the range of 0.3 degrees to 1 degree.

[0012] Optionally, the angle between the side of the upper convex head and the vertical line is 6.5 degrees, and the angle between the side of the lower convex head and the vertical line is 0.5 degrees.

[0013] Optionally, the depth to which the upper protrusion is inserted into the mesh is less than the depth to which the lower protrusion is inserted into the mesh.

[0014] Optionally, the height of the upper protrusion is one-third of the mesh depth, and the depth to which the lower protrusion is inserted into the mesh is two-thirds of the mesh depth.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a parting mold for products with mesh holes. The parting mold is formed within the mesh holes. An upper protrusion extends into the upper part of the mesh holes, and the upper end of the lower mold insert extends into the lower part of the mesh holes and contacts the lower end face of the upper protrusion. The lower end face of the upper protrusion and the upper end face of the lower mold insert are in contact with each other. After the product body is formed, a mesh structure can be formed. The insert lines of the product body come into the mesh holes and are not on the surface of the product body. This reduces the depth of the upper mold insert and lower mold insert that are enclosed in the product body, making it easier to demold. In this way, there are no insert lines on the surface of the product body, which reduces the possibility of the product being scratched or deformed, and improves the product yield. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 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 a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 3 for Figure 2 Schematic diagram of section AA;

[0020] Figure 4 for Figure 3Enlarged structural diagram at point B;

[0021] Figure 5 This is a schematic diagram of the exploded structure of this utility model.

[0022] In the diagram: 1. Upper mold insert; 2. Lower mold insert; 3. Lower mold pin; 4. Product body; 5. Mesh; 6. Upper protrusion; 7. Lower protrusion. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0024] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] like Figures 1 to 5 As shown, a parting mold for products with mesh holes includes an upper module, an upper mold insert 1 at the lower part of the upper module, a lower module below the upper module, a lower mold insert 2 at the upper part of the lower module that cooperates with the upper mold insert 1, a lower mold insert pin 3 penetrating the lower mold insert 2, a receiving space for forming a product body 4 with mesh holes 5 between the upper mold insert 1 and the lower mold insert 2, an upper protrusion 6 connected to the upper mold insert 1 at the upper part of the mesh hole 5, and the upper end of the lower mold insert pin 3 extending into the mesh hole 5 and abutting against the lower end face of the upper protrusion 6.

[0026] The parting is performed within the mesh 5. The upper protrusion 6 extends into the upper part of the mesh 5, and the upper end of the lower mold insert 3 extends into the lower part of the mesh 5 and contacts the lower end face of the upper protrusion 6. The lower end face of the upper protrusion 6 contacts the upper end face of the lower mold insert 3. After the product body 4 is formed, the mesh 5 structure can be formed. The insert line of the product body 4 comes into the mesh 5 and is not on the surface of the product body 4. This reduces the depth of the part of the upper mold insert 1 and the lower mold insert 2 that are enclosed in the product body 4, making it easier to demold. In this way, there is no insert line on the surface of the product body 4, which reduces the possibility of the product being scratched or deformed and improves the product yield.

[0027] On the one hand, the depth of the upper mold insert 1 and the lower mold insert 2 inside the product body 4 is reduced, which reduces the friction between the insert and the product body 4 when the mold is opened and closed, greatly improving the smoothness of demolding and avoiding squeezing damage to the product during demolding. On the other hand, since the insert line is not on the product surface, the hidden danger of product scratches and deformation caused by the surface insert line of traditional molds is eliminated.

[0028] The upper mold insert 1 and the upper protrusion 6 are integrally formed, which improves the structural strength and stability. The shape of the upper protrusion 6 matches the upper contour of the mesh 5, and the upper structure of the mesh 5 can be formed directly during the molding process of the product body 4.

[0029] The upper end of the lower die insert 3 is provided with a lower protrusion 7 that extends completely into the mesh 5. The lower protrusion 7 is integrally formed on the lower die insert 3, which improves the structural strength and stability.

[0030] The upper end face diameter of the upper protrusion 6 is larger than the lower end face diameter by 0.16 to 0.4 mm. Preferably, the upper end face radius of the upper protrusion 6 is larger than the lower end face radius by 0.1 mm.

[0031] When using it, the upper protrusion 6 on the upper mold needs to be drawn with a large draft angle at the corresponding hole position. The upper end face radius of the upper protrusion 6 is larger than the lower end face radius by 0.1mm. This increases the draft angle, reduces costs, improves efficiency and product quality, and shortens the delivery time.

[0032] Both the upper protrusion 6 and the lower protrusion 7 are inclined, with the inclination angle of the upper protrusion 6 being greater than that of the lower protrusion 7. This facilitates the pulling of the upper mold insert 1, the lower mold insert 2, and the lower mold pin 3, thereby improving efficiency and product quality. The upper protrusion 6 has an inverted frustum shape, and the lower protrusion 7 has a regular frustum shape, which facilitates the upward pulling of both the upper and lower protrusions, increasing the draft space, reducing the difficulty of mold processing, reducing processing costs, and significantly shortening the product molding cycle, improving production efficiency. At the same time, it avoids problems such as scratches and tears on the product surface caused by poor drafting, further improving product quality.

[0033] The angle between the side of the upper protrusion 6 and the vertical line is between 5 and 10 degrees, preferably 6.5 degrees. This results in low pulling resistance and good demolding effect, which can ensure the product molding quality and minimize mold wear.

[0034] The angle between the side of the lower protrusion 7 and the vertical line is between 0.3 degrees and 1 degree, preferably 0.5 degrees. This can ensure that the lower protrusion 7 provides support for the lower part of the mesh 5 while reducing friction with the product during the drawing process, thereby further improving production efficiency and product quality.

[0035] The depth to which the upper protrusion 6 is inserted into the mesh 5 is less than the depth to which the lower protrusion 7 is inserted into the mesh 5.

[0036] The height of the upper protrusion 6 is one-third of the depth of the mesh 5, and the lower protrusion 7 is inserted into the mesh 5 to a depth of two-thirds of the depth of the mesh 5. The parting at about one-third of the mesh 5 serves as the upper mold, increasing the draft angle.

[0037] The upper protrusion 6 has two radial venting grooves on its end face. The upper mold insert 1 has a venting channel. The venting channel includes a horizontally arranged horizontal venting hole and a vertical venting hole that communicates with the upper end of the horizontal venting hole. The horizontal venting hole and the venting groove are connected by a connecting hole. The venting groove is connected to the venting channel in the upper mold insert 1 to ensure that the gas in the front cavity has been discharged before the melt arrives.

[0038] The venting groove is located on the mating end face of the upper protrusion 6 and the lower mold insert 3. The lower mold insert 3 can move up and down relative to the lower mold insert 2 to achieve differential demolding.

[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0040] The embodiments of this utility model are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, 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 parting mold for products with mesh openings, comprising an upper module, characterized in that, The upper module has an upper mold insert at its lower part, and a lower module is located below the upper module. The lower module has a lower mold insert at its upper part that cooperates with the upper mold insert. A lower mold insert pin passes through the lower mold insert. There is a receiving space between the upper mold insert and the lower mold insert for forming a product body with mesh holes. An upper protrusion connected to the upper mold insert is located at the upper part of the mesh hole. The upper end of the lower mold insert pin extends into the mesh hole and abuts against the lower end face of the upper protrusion.

2. A parting mold for products with mesh openings according to claim 1, characterized in that, The upper mold insert and the upper protrusion are integrally formed.

3. A parting mold for products with mesh openings according to claim 1, characterized in that, The upper end of the lower die insert pin is provided with a protruding head that extends completely into the mesh.

4. A parting mold for products with mesh openings according to claim 3, characterized in that, The radius of the upper end face of the upper convex head is 0.08 to 0.2 mm larger than the radius of the lower end face.

5. A parting mold for products with mesh openings according to claim 4, characterized in that, The upper end face radius of the upper convex head is 0.1 mm larger than the lower end face radius.

6. A parting mold for products with mesh openings according to claim 3, characterized in that, Both the upper and lower protrusions are inclined, with the inclination angle of the upper protrusion being greater than that of the lower protrusion.

7. A parting mold for products with mesh openings according to claim 6, characterized in that, The angle between the side of the upper convex head and the vertical line ranges from 5 degrees to 10 degrees, and the angle between the side of the lower convex head and the vertical line ranges from 0.3 degrees to 1 degree.

8. A parting mold for products with mesh openings according to claim 7, characterized in that, The angle between the side of the upper convex head and the vertical line is 6.5 degrees, and the angle between the side of the lower convex head and the vertical line is 0.5 degrees.

9. A parting mold for products with mesh openings according to claim 3, characterized in that, The upper protrusion is inserted into the mesh to a depth less than the lower protrusion is inserted into the mesh.

10. A parting mold for products with mesh openings according to claim 9, characterized in that, The height of the upper protrusion is one-third of the mesh depth, and the depth to which the lower protrusion is inserted into the mesh is two-thirds of the mesh depth.

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