Filtering mesh forming die with filtering hole angle concentric

Abstract

The utility model discloses a filter screen forming die of filter hole angle concentric relates to injection mold field, include : fixed mould, movable mould, forming die, inclined guide pillar subassembly, the recess is equipped with in the middle below fixed mould, movable mould sets up below fixed mould, and the recess is equipped with in the middle upper portion of movable mould, and the recess four sides middle is provided with the sliding slot, the forming die is divided into upper die, lower die, upper die, lower die sets up in the recess of fixed mould, movable mould respectively, and the recess in upper die, lower die closes mould and forms forming cavity in the middle, the inclined guide pillar subassembly includes guide rail frame, guide post, positioning column, sliding block, the guide rail frame sets up in the middle inside fixed mould, movable mould, the guide post sets up in the guide rail frame, the positioning column sets up in the sliding slot outer end, the sliding block sets up in the sliding slot, and the hole hole that cooperates with the guide post is equipped with in the middle of sliding block. The utility model discloses when closing mould, and the inclined guide pillar inserts the sliding block, and the inside of sliding block has a plurality of concentric cylinders, makes the center of filter hole and the circumference concentric, improves production efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a filter screen forming mold with concentric filter hole angles. Background Technology

[0002] The filter screen is installed upstream of the check valve to filter out impurities before the medium enters the check valve. The size and specifications of the filter screen need to be selected according to the actual situation of the pipeline system to ensure that it can effectively filter impurities without causing excessive resistance to the check valve, thus ensuring the normal operation of the pipeline system. An improperly designed filter screen may cause fluid to accumulate at the check valve, or even lead to blockage. This mold uses four large sliders, with each filter hole evenly distributed on the circumference, and the center of each filter hole is concentric with the circumference, allowing for smooth medium flow and preventing impurities from clogging the system. Utility Model Content

[0003] The purpose of this utility model is to provide a filter screen forming mold with concentric filter hole angles to solve the above problems. The moving mold adopts four sets of sliders, the inner side of the slider is arc-shaped, and the angle of each small column on the inner side is concentric, so that the center of the filter hole is concentric with the circumference, the medium flows more smoothly, and the product quality is improved.

[0004] Technical Solution: This utility model provides a filter screen forming mold with concentric filter hole angles, including: a fixed mold, a moving mold, a forming mold, and an inclined guide post assembly. The fixed mold has a groove in the middle of its lower part; the moving mold is located below the fixed mold, and has a groove in the middle of its upper part, with sliding grooves in the middle of the four sides of the groove; the forming mold is divided into an upper mold and a lower mold, which are respectively located in the grooves of the fixed mold and the moving mold, forming a forming cavity when the upper mold and the lower mold are closed; the inclined guide post assembly includes a guide rail frame, guide posts, positioning posts, and sliders. The guide rail frame is inclinedly located in the middle of the inner side of the fixed mold and the moving mold, the guide posts are located in the guide rail frame, the positioning posts are located at the outer end of the sliding grooves, and the sliders are located in the sliding grooves. The sliders have holes in the middle that cooperate with the guide posts, and the positioning posts are used to limit the sliders. When the moving mold and the fixed mold are closed, the guide posts extend into the middle hole of the sliders, causing the sliders to merge together for forming the filter screen.

[0005] Furthermore, in the above-mentioned filter screen forming mold with concentric filter hole angles, a guide post is provided between the fixed mold and the moving mold.

[0006] Furthermore, in the above-mentioned filter screen forming mold with concentric filter hole angles, the inner side of the slider is arc-shaped, and small pillars corresponding to the filter holes are provided on the inner side. The small pillars are concentric in angle, so that the center of the filter hole is concentric with the circumference.

[0007] Furthermore, in the above-mentioned filter screen forming mold with concentric filter hole angles, an injection hole is provided above the fixed mold, and an injection flow channel is connected below the injection hole and enters the forming cavity.

[0008] Furthermore, in the above-mentioned filter screen forming mold with concentric filter hole angles, an ejector pin is provided in the middle of the forming cavity as an ejection structure after the filter screen is formed.

[0009] Furthermore, in the above-mentioned filter screen forming mold with concentric filter hole angles, the fixed mold and the moving mold are provided with clamping plates.

[0010] Furthermore, in the above-mentioned filter screen forming mold with concentric filter hole angles, a spring is provided inside the moving mold, and a spring return rod is provided inside the spring.

[0011] As can be seen from the above technical solution, the mold of this utility model has the following beneficial effects: The filter screen forming mold with concentric filter hole angles described in this utility model, by setting an inclined guide post assembly, the fixed mold guide post enters the guide post hole of the moving mold slider, along the guide rail frame, as the mold closes, the four sets of sliders gather together to form a complete forming cavity. After injection molding, the moving mold opens, and the four sets of sliders are pulled obliquely by the guide posts and open outwards. The product is demolded by the spring and demolding top in the moving mold. The inner side of each set of sliders is arc-shaped, and the angle of each small post on the inner side is concentric, so that the center of the filter hole is concentric with the circumference, the medium flows more smoothly, and the product quality is improved. Moreover, the fixed mold, moving mold and forming mold are closely matched, and the guide post and inclined guide post ensure accurate positioning, which improves the product quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a filter screen forming mold with concentric filter hole angles according to the present invention. Figure 2 This is a top view of a filter screen forming mold with concentric filter hole angles according to the present invention. Figure 3 This is a side view of a filter screen forming mold with concentric filter hole angles according to the present invention.

[0013] In the diagram: 1. Fixed mold; 2. Moving mold; 3. Forming mold; 4. Angled guide post assembly; 5. Clamping plate; 6. Guide post; 7. Injection hole; 21. Spring; 22. Spring return rod; 31. Upper mold; 32. Lower mold; 33. Forming cavity; 41. Guide rail frame; 42. Angled guide post; 43. Positioning post; 44. Slider; 331. Ejector pin. Detailed Implementation

[0014] Example

[0015] like Figure 1-3The illustrated filter screen forming mold with concentric filter hole angles includes: a fixed mold 1, a moving mold 2, a forming mold 3, and an inclined guide post assembly 4. The fixed mold 1 has a groove in the center of its lower part; the moving mold 2 is located below the fixed mold 1, and has a groove in the center of its upper part, with sliding grooves on the four sides of the groove; the forming mold 3 is divided into an upper mold 31 and a lower mold 32, which are respectively located within the grooves of the fixed mold 1 and the moving mold 2, forming a forming cavity 33 when the upper mold 31 and the lower mold 32 are closed; the inclined guide post assembly 4 includes a guide rail frame 41, guide posts 42, positioning posts 43, and a slider 44, with the guide rail frame 41 inclinedly positioned inside the middle of the fixed mold 1 and the moving mold 2. The guide post 42 is disposed inside the guide rail frame 41, the positioning post 43 is disposed at the outer end of the slide groove, and the slider 44 is disposed inside the slide groove. The slider 44 has a hole in the middle that mates with the guide post 42. The positioning post 43 is used to limit the slider 44. The inner side of the slider 44 is arc-shaped and has small posts corresponding to the filter holes. The angles of the small posts are concentric, so that the center of the filter hole is concentric with the circumference, making the medium flow smoother when the molded product is used, thus improving the product quality. When the moving mold 2 and the fixed mold 1 are closed, the guide post 42 extends into the middle hole of the slider 44, so that the slider 44 is joined together for the molding of the filter screen. After injection molding, the product is ejected and demolded, which improves production efficiency.

[0016] like Figure 1 , 2 The diagram illustrates a filter screen forming mold with concentric filter hole angles. A guide post 6 is provided between the fixed mold 1 and the moving mold 2; the inclined guide post assembly 4 is positioned between the fixed mold 1 and the moving mold 2, surrounding the forming mold 3. The fixed mold 1, moving mold 2, and forming mold 3 fit together tightly, and the guide post 6 and inclined guide post assembly 4 ensure accurate positioning, thus improving product quality.

[0017] like Figure 2 The diagram shows a filter screen forming mold with concentric filter hole angles. The fixed mold 1 has an injection hole 7 above it, and the injection hole 7 is connected to an injection flow channel below it, which enters the forming cavity 33.

[0018] In this embodiment, there is an ejector pin 331 in the lower middle of the molding cavity 33, which serves as a product demolding and ejection structure.

[0019] like Figure 3 The diagram shows a filter screen forming mold with concentric filter hole angles. The moving mold 2 is provided with a spring 21, and the spring 21 is provided with a spring return rod 22. After the mold is opened, the ejector pin ejects the product. When ejecting, the spring 21 is compressed. As the return rod 22 rebounds, the ejector pin returns to its original position to facilitate the forming of the next mold.

[0020] It should be noted that the above description is merely a technical solution of the utility model and not a limitation. Although the present utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of the utility model without departing from the scope of the present utility model, and all such modifications and substitutions should be covered within the scope of the claims of the present utility model.

Claims

1. A filter screen forming mold with concentric filter hole angles, characterized in that: include: A fixed mold (1) is provided with a groove in the middle of its lower part; The moving mold (2) is located below the fixed mold (1). The upper part of the moving mold (2) has a groove in the middle, and the groove has a sliding groove in the middle of its four sides. The molding mold (3) is divided into an upper mold (31) and a lower mold (32). The upper mold (31) and the lower mold (32) are respectively set in the grooves of the fixed mold (1) and the moving mold (2). The upper mold (31) and the lower mold (32) form a molding cavity (33) when they are closed. The inclined guide post assembly (4) includes a guide rail frame (41), a guide post (42), a positioning post (43), and a slider (44). The guide rail frame (41) is inclinedly arranged in the middle of the inner side of the fixed mold (1) and the moving mold (2). The guide post (42) is arranged inside the guide rail frame (41). The positioning post (43) is arranged at the outer end of the slide groove. The slider (44) is arranged in the slide groove. The middle of the slider (44) is provided with a hole that cooperates with the guide post (42). The positioning post (43) is used to limit the slider (44). When the moving mold (2) and the fixed mold (1) are closed, the guide post (42) extends into the middle hole of the slider (44) so ​​that the slider (44) is merged together for the forming of the filter screen.

2. The filter screen forming mold with concentric filter hole angles according to claim 1, characterized in that: A guide post (6) is provided between the fixed mold (1) and the moving mold (2).

3. The filter screen forming mold with concentric filter hole angles according to claim 1, characterized in that: The inner side of the slider (44) is arc-shaped, and small pillars corresponding to the filter holes are provided on the inner side. The small pillars are concentric in angle, so that the center of the filter hole is concentric with the circumference.

4. The filter screen forming mold with concentric filter hole angles according to claim 1, characterized in that: An injection hole (7) is provided above the fixed mold (1), and an injection flow channel is connected below the injection hole (7) and enters the molding cavity (33).

5. The filter screen forming mold with concentric filter hole angles according to claim 1, characterized in that: A ejector pin (331) is provided in the lower middle of the molding cavity (33).

6. The filter screen forming mold with concentric filter hole angles according to claim 1, characterized in that: The fixed mold (1) and the moving mold (2) are provided with clamping plates (5).

7. The filter screen forming mold with concentric filter hole angles according to claim 1, characterized in that: A spring (21) is provided at the bottom inside the moving mold (2), and a spring return rod (22) is provided inside the spring (21).

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