Five-way valve pipe structure forming die of electromagnetic valve

Abstract

The utility model discloses a forming die for a five-way valve pipe structure of an electromagnetic valve, and relates to the technical field of dies. Comprising an upper die and a lower die. Through the double-cooling-water-path design of the upper mold core and the lower mold core, efficient and uniform cooling is achieved, the forming period is remarkably shortened, the product consistency is improved, it is guaranteed that the upper mold core and the lower mold core are rapidly cooled through circulating cooling liquid of multiple sets of independent cooling water paths, local overheating deformation is avoided, and the forming precision is guaranteed; the functions of long-stroke stable core pulling and automatic demolding are combined, the mold splitting distance is large, movement is reliable, an ejector pin demolding mechanism is matched with spring reset and four-corner stabilizer bar guiding, rapid demolding and precise reset are achieved, the blocking risk is eliminated, the overall module structure is compact, injection and cooling of forming raw materials are synchronously optimized, the production takt is shortened, and the production efficiency is improved. And the advantages of efficient forming and stable operation are achieved, and the product quality and the production efficiency are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a molding die for a five-way valve tube structure of an electromagnetic valve. Background Technology

[0002] Molds are core tools in industrial manufacturing used for shaping products. Their design and application directly affect molding efficiency and precision. Five-way valve tubes require mold forming during production. Five-way valve tubes are key components in fluid control systems used for multi-directional flow switching, commonly found in solenoid valves. A five-way valve tube typically refers to a valve with five fluid channels (interfaces), commonly found in "two-position five-way" solenoid valve designs. However, existing five-way valve tube production molds have the following shortcomings in use:

[0003] In the existing technology, the existing five-way valve pipe mold has a single function and generally adopts natural heat dissipation or air cooling, which seriously affects the product molding efficiency and causes serious trouble for users. Utility Model Content

[0004] This utility model provides a molding die for a five-way valve tube structure of an electromagnetic valve to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a molding die for a five-way valve tube structure of an electromagnetic valve, comprising an upper die and a lower die, wherein an upper core and a lower core are respectively provided inside the upper die and the lower die, wherein at least one set of upper cooling water channels are provided inside the upper core and at least one set of lower cooling water channels are provided inside the lower core.

[0006] Furthermore, the number of upper cooling water channels is no less than two sets, and the inlet and outlet of the two sets of upper cooling water channels pass through the upper core and extend to both sides of the upper mold.

[0007] Furthermore, the number of the lower cooling water channels is no less than two sets, and the inlet and outlet of the two sets of lower cooling water channels pass through the lower core and extend to both sides of the lower mold.

[0008] Furthermore, the top of the lower mold is slidably provided with a main slider and several secondary sliders, and a core-pulling rod is provided on one side of both the main slider and the secondary sliders, with one end of the core-pulling rod extending between the upper core and the lower core.

[0009] Furthermore, a hydraulic cylinder for driving the main slider is provided on one side of the lower mold, and a set of inclined guide rods are provided at the bottom of the upper mold in the same number as the auxiliary sliders and are fitted one-to-one. A guide groove for avoiding the inclined guide rods is also provided on the outer side wall of the lower mold away from the hydraulic cylinder.

[0010] Furthermore, the bottom of the lower mold is connected to a base plate via two mold feet, and a cover plate is movably disposed on the top of the base plate between the two mold feet. An ejector plate is disposed on the top of the cover plate, and a plurality of ejector pins are disposed inside the ejector plate, with one end extending into the interior of the lower core.

[0011] Furthermore, each of the four corners of the ejector plate is provided with a lifting rod whose top extends to the top of the lower mold, and a spring is sleeved on the outside of the lifting rod between the ejector plate and the lower mold.

[0012] Furthermore, each of the four corners of the base plate is provided with a stabilizing rod whose top end passes through the cover plate and the ejector plate in sequence and extends into the lower mold. The cover plate, the ejector plate and the stabilizing rod are movably connected.

[0013] Furthermore, the top of the upper mold is provided with a top plate, and the top plate is provided with a guide rod whose bottom end passes through the upper mold and the lower mold and extends into the mold foot. The top plate is also provided with a material cylinder that communicates with the upper core and the lower core.

[0014] Compared with the prior art, this utility model provides a molding die for a five-way valve tube structure of a solenoid valve, which has the following beneficial effects:

[0015] This five-way valve tube molding die for electromagnetic valves features a dual cooling water circuit design for the upper and lower cores, achieving efficient and uniform cooling, significantly shortening the molding cycle, and improving product consistency. Multiple independent cooling water circuits ensure rapid cooling of the upper and lower cores, preventing localized overheating and deformation, and guaranteeing molding accuracy. The main slider cylinder drive and the auxiliary slider inclined guide rod linkage core-pulling structure, combined with the extended guide groove, balances long-stroke stable core pulling and automatic demolding functions. The mold parting distance is large and the movement is reliable. The ejector pin demolding mechanism, with spring reset and four corner stabilizing rods, achieves rapid demolding and precise reset, eliminating the risk of jamming. The overall module structure is compact, and the injection and cooling of molding materials are optimized simultaneously, shortening the production cycle. It combines the advantages of efficient molding and stable operation, greatly improving product quality and production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the top plate structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the ejector plate structure of this utility model;

[0020] Figure 5 This is an exploded view of the lower mold structure of this utility model;

[0021] Figure 6 for Figure 5 Enlarged view of the structure at point A in the middle;

[0022] Figure 7 This is a schematic diagram of the product molding of this utility model.

[0023] In the diagram: 1. Upper mold; 11. Upper core; 12. Upper cooling water channel; 13. Angled guide rod; 14. Top plate; 15. Guide rod; 16. Material cylinder; 2. Lower mold; 201. Guide groove; 202. Mold foot; 203. Base plate; 21. Lower core; 22. Lower cooling water channel; 23. Main slider; 24. Secondary slider; 25. Core pulling rod; 26. Hydraulic cylinder; 27. Cover plate; 28. Ejector plate; 281. Ejector pin; 282. Lifting rod; 283. Spring; 29. ​​Stabilizing rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-7 This utility model discloses a molding die for a five-way valve tube structure of an electromagnetic valve, including an upper die 1 and a lower die 2. An upper core 11 and a lower core 21 are respectively provided inside the upper die 1 and the lower die 2. At least one set of upper cooling water channels 12 is provided inside the upper core 11, and at least one set of lower cooling water channels 22 is provided inside the lower core 21. (See reference...) Figure 7 A schematic diagram of the product after the five-way valve tube between the upper core 11 and the lower core 21 is formed.

[0026] Specifically, there are no fewer than two sets of upper cooling water channels 12, with the inlet and outlet of each set of upper cooling water channels 12 passing through the upper core 11 and extending to both sides of the upper mold 1. There are no fewer than two sets of lower cooling water channels 22, with the inlet and outlet of each set of lower cooling water channels 22 passing through the lower core 21 and extending to both sides of the lower mold 2.

[0027] In this embodiment, both the upper core 11 and the lower core 21 adopt a dual cooling water circuit design, which enables the five-way valve tube to be processed quickly and the cooling speed of each part is uniform and consistent, thus ensuring the molding quality. Coolant is introduced through the inlet of the upper cooling water circuit 12 and the lower cooling water circuit 22, flows through the interior of the upper core 11 and the lower core 21 to fully cool them, and finally is discharged through the outlet. The cooled coolant can be recycled after cooling.

[0028] Specifically, the top of the lower mold 2 is slidably provided with a main slider 23 and several auxiliary sliders 24. A core-pulling rod 25 is provided on one side of both the main slider 23 and the auxiliary sliders 24. One end of the core-pulling rod 25 extends between the upper core 11 and the lower core 21. A hydraulic cylinder 26 for driving the main slider 23 is provided on one side of the lower mold 2. The bottom of the upper mold 1 is provided with inclined guide rods 13, which are the same number as the auxiliary sliders 24 and are fitted one-to-one. A guide groove 201 for avoiding the inclined guide rods 13 is also provided on the outer side wall of the lower mold 2 away from the hydraulic cylinder 26.

[0029] In this embodiment, the main slider 23 and the auxiliary slider 24, together with the core-pulling rods 25, correspond to the five ports of the five-way valve pipe. One of the auxiliary sliders 24 has two core-pulling rods 25. The core-pulling rods 25 on the main slider 23 are longer and have a larger stroke, so they are driven by the hydraulic cylinder 26. The core-pulling rods 25 on the auxiliary slider 24 are shorter. Through the mold separation action of the upper mold 1 and the lower mold 2, they are automatically pulled by sliding driven by the inclined guide rod 13. The operation is simple and the structure is ingeniously designed. The guide groove 201 design allows the length of the inclined guide rod 13 to be increased, increasing the mold separation distance between the upper mold 1 and the lower mold 2, while preventing the inclined guide rod 13 from leaving the interior of the auxiliary slider 24, making the use more stable.

[0030] Specifically, the bottom of the lower mold 2 is connected to a base plate 203 via two mold feet 202. A cover plate 27 is movably disposed on the top of the base plate 203 between the two mold feet 202. An ejector plate 28 is disposed on the top of the cover plate 27. A plurality of ejector pins 281 with one end extending into the lower core 21 are disposed inside the ejector plate 28. Lifting rods 282 with their top ends extending into the top of the lower mold 2 are disposed inside the four corners of the ejector plate 28. A spring 283 is sleeved on the outside of the lifting rods 282 and located between the ejector plate 28 and the lower mold 2.

[0031] In this embodiment, during use, an ejector drive mechanism is set at the bottom of the lower mold 2 to drive the rear cover and ejector plate 28 to move upward. The ejector drive mechanism can be a hydraulic cylinder or a motor and ball screw mechanism. The rear cover is driven to move the ejector plate 28 upward. The ejector plate 28 drives the lifting rod 282 to lift the upper mold 1. At the same time, the ejector plate 28 drives the ejector pins 281 to lift the molded product and demold it from the inside of the lower core 21. When the ejector plate 28 rises, it compresses the spring 283. When the ejector drive mechanism that drives the ejector plate 28 descends, the spring 283 rebounds and drives the ejector plate 28 to quickly descend and reset. This makes the use more flexible and prevents jamming.

[0032] Specifically, each of the four corners of the base plate 203 is provided with a stabilizing rod 29, the top of which passes through the cover plate 27 and the ejector plate 28 and extends into the lower mold 2. The cover plate 27, the ejector plate 28 and the stabilizing rod 29 are movably connected.

[0033] In this embodiment, the setting of the stabilizer bar 29 makes the rising or falling movement of the cover plate 27 and the ejector plate 28 more stable, prevents deviation, and makes the movement more precise.

[0034] Specifically, the top of the upper mold 1 is provided with a top plate 14, and the top plate 14 is provided with a guide rod 15 whose bottom end passes through the upper mold 1 and the lower mold 2 and extends into the mold foot 202. The top plate 14 is provided with a material cylinder 16 that communicates with the upper core 11 and the lower core 21.

[0035] Specifically, the molding material is injected between the upper core 11 and the lower core 21 through the material cylinder 16. After injection, coolant is delivered to flow inside the upper cooling water channel 12 and the lower cooling water channel 22 to cool the upper core 11 and the lower core 21, so that the product can be formed quickly.

[0036] In summary, this five-way solenoid valve pipe molding die achieves efficient and uniform cooling through a dual cooling water circuit design for the upper core 11 and lower core 21, significantly shortening the molding cycle and improving product consistency. Multiple independent cooling water circuits ensure rapid cooling of the upper core 11 and lower core 21, preventing localized overheating and deformation, and guaranteeing molding accuracy. The main slider 23 driven by the hydraulic cylinder 26 and linked to the auxiliary slider 24 with the inclined guide rod 13, combined with the extended guide groove 201, balances long-stroke stable core pulling with automatic demolding. It features a large parting distance and reliable movement. The ejector pin 281 demolding mechanism, with spring 283 for reset and four corner stabilizing rods 29 for guidance, achieves rapid demolding and precise reset, eliminating the risk of jamming. The overall module structure is compact, and the injection and cooling of molding materials are optimized simultaneously, shortening the production cycle. It combines efficient molding with stable operation, significantly improving product quality and production efficiency.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molding die for forming the structure of a five-way solenoid valve pipe, comprising an upper die (1) and a lower die (2), characterized in that: The upper mold (1) and the lower mold (2) are respectively provided with an upper core (11) and a lower core (21). The upper core (11) is provided with at least one set of upper cooling water channels (12), and the lower core (21) is provided with at least one set of lower cooling water channels (22).

2. The forming mold for a five-way valve pipe structure of a solenoid valve according to claim 1, characterized in that: The number of the upper cooling water channels (12) is not less than two sets, and the inlet and outlet of the two sets of upper cooling water channels (12) pass through the upper core (11) and extend to both sides of the upper mold (1).

3. The forming mold for a five-way valve pipe structure of a solenoid valve according to claim 1, characterized in that: The number of the lower cooling water channels (22) is no less than two sets, and the inlet and outlet of the two sets of lower cooling water channels (22) pass through the lower core (21) and extend to both sides of the lower mold (2).

4. The forming mold for a five-way valve pipe structure of a solenoid valve according to claim 1, characterized in that: The top of the lower mold (2) is slidably provided with a main slider (23) and several auxiliary sliders (24). A core-pulling rod (25) is provided on one side of both the main slider (23) and the auxiliary sliders (24). One end of the core-pulling rod (25) extends between the upper core (11) and the lower core (21).

5. The forming mold for a five-way valve pipe structure of a solenoid valve according to claim 1, characterized in that: The lower mold (2) is provided with a hydraulic cylinder (26) for driving the main slider (23) on one side. The bottom of the upper mold (1) is provided with inclined guide rods (13) that are the same number as the auxiliary sliders (24) and are sleeved one by one. The outer side wall of the lower mold (2) away from the hydraulic cylinder (26) is also provided with a guide groove (201) for avoiding the inclined guide rods (13).

6. The forming mold for a five-way valve pipe structure of a solenoid valve according to claim 1, characterized in that: The bottom of the lower mold (2) is connected to a base plate (203) via two mold feet (202). A cover plate (27) is movably disposed on the top of the base plate (203) between the two mold feet (202). An ejector plate (28) is disposed on the top of the cover plate (27). A plurality of ejector pins (281) are disposed inside the ejector plate (28), one end of which extends into the lower core (21).

7. The forming mold for a five-way valve pipe structure of a solenoid valve according to claim 6, characterized in that: The ejector plate (28) has four corners with lifting rods (282) extending to the top of the lower mold (2). The lifting rods (282) are fitted with springs (283) between the ejector plate (28) and the lower mold (2).

8. The forming mold for a five-way valve pipe structure of a solenoid valve according to claim 6, characterized in that: The bottom plate (203) has a stabilizing rod (29) with its top end passing through the cover plate (27) and the ejector plate (28) and extending into the lower mold (2) inside each of its four corners. The cover plate (27), the ejector plate (28) and the stabilizing rod (29) are movably connected.

9. The forming mold for a five-way valve tube structure of a solenoid valve according to claim 1, characterized in that: The top of the upper mold (1) is provided with a top plate (14), and the top plate (14) is provided with a guide rod (15) whose bottom end passes through the upper mold (1) and the lower mold (2) and extends into the mold foot (202). The top plate (14) is provided with a material cylinder (16) that communicates with the upper core (11) and the lower core (21).

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