A PPH socket valve fitting mold

Abstract

The utility model discloses a PPH socket type valve joint mould belongs to injection mould technical field, include : fixed mould, movable mould, forming die, oil cylinder core -pulling subassembly, demoulding mechanism, movable mould is set below fixed mould, and the recess is equipped with in movable mould, fixed mould middle, the forming die is set in the recess of fixed mould, movable mould, and the middle forms forming cavity, and the forming cavity has two side -by -side symmetry, oil cylinder core -pulling subassembly sets up in the recess of fixed mould, movable mould outside middle, and stretches into forming cavity middle, is used for the forming of PPH socket type valve joint internal stepped through -hole, the demoulding mechanism includes spring, demoulding ejector pin, the spring sets up in movable mould, and the demoulding ejector pin sets up in spring. The utility model one mould double holes, sets up oil cylinder core -pulling subassembly, and mould combination is convenient and stable, reduces production error, improves production quality, and the demoulding ejector pin corresponds two forming cavities respectively, and the demoulding efficiency is high, and reduces the damage to product.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a PPH socket valve connector mold. Background Technology

[0002] PPH socket valve fittings are pipe fittings made of high molecular weight polypropylene (PPH) material. They are used for quick installation through socket connection and are widely used in corrosive media transportation systems.

[0003] However, in the existing technology, the processing and production of PPH socket valve connectors usually uses injection molds for injection molding. However, the existing injection molding process has low production efficiency, low production quality, time-consuming mold closing and assembly, which affects production efficiency, inconvenient demolding, easy damage to products, and affects use. Utility Model Content

[0004] The purpose of this utility model is to provide a PPH socket valve connector mold to solve the above problems. The mold adopts a two-cavity design and is equipped with a hydraulic cylinder for core pulling, which improves production efficiency. The demolding mechanism efficiently and smoothly demolds the product, thereby improving production quality.

[0005] Technical Solution: This utility model provides a PPH socket valve connector mold, including: a fixed mold, a moving mold, a forming mold, a hydraulic cylinder core-pulling assembly, and a demolding mechanism. 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; 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, respectively. The upper and lower molds are closed to form a forming cavity, which has two symmetrically arranged side-by-side; the hydraulic cylinder core-pulling assembly includes a fixed frame, a hydraulic cylinder, a push rod, a sliding component, and a hydraulic cylinder core-pulling mechanism. The cylinder has two cylinders, symmetrically arranged on the sliding member and extending into the middle of the forming cavity. The outermost diameter of the cylinder cylinder is smaller than that of the inner end, forming a two-stage stepped structure for forming the stepped through hole inside the PPH socket valve connector. The demolding mechanism includes a spring and a demolding pin. The spring is located inside the moving mold, and the demolding pin is located inside the spring.

[0006] Furthermore, in the aforementioned PPH socket valve connector mold, a guide post is provided between the fixed mold and the moving mold.

[0007] Furthermore, in the aforementioned PPH socket valve connector mold, an injection hole is provided in the middle of the upper part of the fixed mold, and an injection flow channel is connected below the injection hole, which then flows into each molding cavity.

[0008] Furthermore, in the aforementioned PPH socket valve connector mold, the four corners of the grooves in the fixed mold and the moving mold have a rounded chamfer design.

[0009] Furthermore, in the aforementioned PPH socket valve connector mold, the fixed mold and the moving mold are provided with a pad.

[0010] Furthermore, in the aforementioned PPH socket valve connector mold, the width of the sliding element is equal to the width of the groove.

[0011] Furthermore, in the aforementioned PPH socket valve connector mold, the springs and ejector pins are symmetrically arranged in two rows, four in each row, and divided into two groups, respectively aligned with the two sides of the two forming cavities. The ejector pins are cylindrical, and the ejection contact area is less than or equal to one-quarter of the top of the ejector pin.

[0012] As can be seen from the above technical solution, this utility model has the following beneficial effects: The PPH socket valve connector mold of this utility model adopts a single mold with two cavities. A hydraulic cylinder core-pulling assembly is set on the outside of the forming mold, and two forming cavities are symmetrically arranged. After injection molding, the hydraulic cylinder pulls the core, and then ejects it through the ejector pin. After the product is demolded, the cylinder core re-enters the mold, the mold assembly closes, and the next production step is carried out. This reduces product production errors and improves production quality. Eight ejector pins are evenly arranged, with four in each group corresponding to two forming cavities. This results in high demolding efficiency, reduces damage to the product, and thus improves production efficiency. A pad is set on the outside of the fixed mold and the moving mold to reduce direct impact on the mold and improve the service life of the mold. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a PPH socket valve connector mold according to the present invention;

[0014] Figure 2 This is a top view of a PPH socket valve connector mold according to the present invention.

[0015] Figure 3 This is a side view of a PPH socket valve connector mold according to the present invention.

[0016] In the diagram: 1. Fixed mold; 2. Moving mold; 3. Molding mold; 4. Hydraulic cylinder core-pulling assembly; 5. Demolding mechanism; 6. Guide pillar; 7. Pad; 11. Injection hole; 31. Molding cavity; 41. Fixing frame; 42. Hydraulic cylinder; 43. Ejector rod; 44. Sliding part; 45. Hydraulic cylinder core; 51. Spring; 52. Demolding ejector pin. Detailed Implementation

[0017] Example 1

[0018] like Figure 1-3The PPH socket valve connector mold shown includes: a fixed mold 1, a moving mold 2, a forming mold 3, a hydraulic cylinder core-pulling assembly 4, and a demolding mechanism 5. The fixed mold 1 has a groove in the middle of its lower part; the moving mold 2 is located below the fixed mold 1, and has a groove in the middle of its upper part; the forming mold 3 is divided into an upper mold and a lower mold, which are respectively located in the grooves of the fixed mold 1 and the moving mold 2. The upper and lower molds are closed to form a forming cavity 31, which has two symmetrically arranged side-by-side; the hydraulic cylinder core-pulling assembly 4 includes a fixed frame 41, a hydraulic cylinder 42, a push rod 43, a sliding component 44, and a hydraulic cylinder core 45. 41 is located in the middle of the outer side of the fixed mold 1 and the moving mold 2. The oil cylinder 42 is located in the middle of the outer end of the fixed frame 41. The ejector rod 43 is connected to the oil cylinder 42. The sliding member 44 is connected to the ejector rod 43 and slides in the groove. There are two cylinder cores 45, which are symmetrically arranged on the sliding member 44 and extend into the middle of the molding cavity 31. The outermost diameter of the cylinder core 45 is smaller than that of the inner end, forming a two-stage stepped structure, which is used for molding the stepped through hole inside the PPH socket valve connector. The demolding mechanism 5 includes a spring 51 and a demolding ejector pin 52. The spring 51 is located inside the moving mold 2 and the demolding ejector pin 52 is located inside the spring 51. A set of molds has two molding cavities 31. By setting up a cylinder core-pulling assembly 4, the cylinder core 45 is inserted into the molding cavity 31. The cylinder core 45 has a stepped structure, forming a two-stage stepped structure, which is used for molding the stepped through hole inside the PPH socket valve connector. Before each injection molding, the cylinder core 45 extends into the molding cavity 31, the mold closes, and after molding, the cylinder core 45 is pulled out. The demolding mechanism 5 ejects the product and demolds it, which improves production efficiency.

[0019] like Figure 1 The diagram shows a PPH socket-type valve connector mold, in which a guide post 6 is provided between the fixed mold 1 and the moving mold 2. The fixed mold 1, moving mold 2, and forming mold 3 fit together tightly, and the guide post 6 ensures accurate positioning, thus improving product quality.

[0020] like Figure 2 The PPH socket valve connector mold shown has an injection hole 11 in the middle of the upper part of the fixed mold 1. The injection hole 11 is connected to the injection flow channel below and the flow is divided into each molding cavity 31.

[0021] Example 2

[0022] Based on Example 1, in this example, as... Figure 1 The PPH socket valve connector mold shown has a pad 7 on the outside of the fixed mold 1 and the moving mold 2. When the mold is closed and the fixed mold 1 and the moving mold 2 are pressed together, the pad 7 acts as a liner to reduce damage to the mold itself and improve the service life of the mold.

[0023] In this embodiment, the four corners of the grooves in the fixed mold 1 and the moving mold 2 are designed with rounded chamfers. This avoids the four corners of the forming mold 3 during installation, making installation easier and preventing damage to the forming mold 3.

[0024] like Figure 2 The PPH socket valve connector mold shown has a sliding member 44 with a width equal to the groove width. This limits the sliding member 44 within the groove, ensuring a stable sliding trajectory and improving product quality.

[0025] like Figure 2 , 3 The PPH socket-type valve connector mold shown has springs 51 and ejector pins 52 symmetrically arranged in two rows, four in each row, divided into two groups, each aligned with both sides of two molding cavities 31. The ejector pins 52 are cylindrical, and the ejection contact area is less than or equal to one-quarter of the top of the ejector pin 52. Eight ejector pins 52 are evenly arranged, with four in each group corresponding to two molding cavities 31, resulting in high demolding efficiency, reduced damage to the product, and thus improved production efficiency.

[0026] 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 PPH socket valve connector mold, 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), and a groove is provided in the middle of the upper part of the moving mold (2); The molding mold (3) is divided into an upper mold and a lower mold. The upper mold and the lower mold are respectively set in the grooves of the fixed mold (1) and the moving mold (2). The upper mold and the lower mold are closed to form a molding cavity (31). The molding cavity (31) has two symmetrically arranged side by side. The cylinder core-pulling assembly (4) includes a fixed frame (41), a cylinder (42), a push rod (43), a sliding member (44), and a cylinder core (45). The fixed frame (41) is located in the middle of the outer side of the fixed mold (1) and the moving mold (2). The cylinder (42) is located in the middle of the outer end of the fixed frame (41). The push rod (43) is connected to the cylinder (42). The sliding member (44) is connected to the push rod (43) and slides in the groove. There are two cylinder cores (45), which are symmetrically arranged on the sliding member (44) and extend into the middle of the forming cavity (31). The outermost diameter of the cylinder core (45) is smaller than that of the inner end, forming a two-stage stepped structure, which is used for forming the stepped through hole inside the PPH socket valve connector. The demolding mechanism (5) includes a spring (51) and a demolding ejector pin (52). The spring (51) is disposed in the moving mold (2), and the demolding ejector pin (52) is disposed in the spring (51).

2. The PPH socket valve connector mold 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 PPH socket valve connector mold according to claim 1, characterized in that: An injection hole (11) is provided in the middle of the upper part of the fixed mold (1). The injection hole (11) is connected to the injection flow channel below and flows into each molding cavity (31).

4. The PPH socket valve connector mold according to claim 1, characterized in that: The four corners of the grooves in the fixed mold (1) and the moving mold (2) are designed with rounded chamfers.

5. A PPH socket valve connector mold according to claim 1, characterized in that: The width of the sliding member (44) is equal to the width of the groove.

6. A PPH socket valve connector mold according to claim 1, characterized in that: The fixed mold (1) and the moving mold (2) are provided with a pad (7).

7. A PPH socket valve connector mold according to claim 1, characterized in that: The springs (51) and ejector pins (52) are arranged symmetrically in two rows, with four in each row, and are divided into two groups, which are respectively aligned with the two sides of the two molding cavities (31). The ejector pins (52) are cylindrical, and the ejection contact area is less than or equal to one-quarter of the top of the ejector pin (52).

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