Die casting mold pin high-pressure point cooling mechanism

Abstract

The utility model discloses a die casting die type pin high pressure point cold mechanism, including slider seat, slider and high pressure point cold unit, slider seat and slider detachable connection setting, the slider is provided with type pin along the transverse in, high pressure point cold unit includes point cold water inlet pipe subassembly, point cold water outlet pipe subassembly and high pressure point cold pipe core, and point cold water inlet pipe subassembly includes the first point cold water inlet pipe of being worn in the slider seat and the second point cold water inlet pipe of being worn in the slider, and the first point cold water inlet pipe is connected with the second point cold water inlet pipe, and point cold water outlet pipe subassembly includes the first point cold water outlet pipe of being worn in the slider seat and the second point cold water outlet pipe of being worn in the slider, and the first point cold water outlet pipe is connected with the second point cold water outlet pipe, high pressure point cold pipe core is worn in the inner chamber of type pin, and the water inlet channel is formed to the second point cold water inlet pipe in high pressure point cold pipe core, and the water outlet channel is formed between high pressure point cold pipe core and type pin inner wall, and the water outlet channel is connected with the second point cold water outlet pipe.

Description

Technical Field

[0001] This utility model belongs to the field of gearbox mold technology, specifically relating to a high-pressure cooling mechanism for die-casting mold pins. Background Technology

[0002] Die-casting mold pins are core components for forming the internal holes, threads, and complex structural features of die-cast parts. Under the intense impact of high-pressure, high-speed molten metal, the mold pin area often experiences problems such as localized overheating, thermal fatigue, and aluminum adhesion. These problems not only significantly shorten the mold's lifespan but also severely degrade the quality of the castings. Combining die-casting mold pins with high-pressure spot cooling technology can significantly improve mold life, casting quality, and production efficiency. High-pressure spot cooling technology directly inserts a high-pressure spot cooling core into the mold pin, forcing heat exchange and upgrading traditional surface cooling to point-to-point precise cooling. This effectively overcomes the shortcomings of traditional cooling methods in terms of efficiency, precision, and mold life, becoming an important way to solve shrinkage cavities in die-casting parts.

[0003] However, in the design process of die casting molds, the structure of some gearboxes determines that there is not enough space at the rear of the pin tube for arranging cooling water channels, which makes it impossible to implement the existing high-pressure cooling arrangement method of the straight die casting pin, resulting in serious shrinkage defects in the castings, affecting the casting qualification rate, and urgently requiring improvement. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a high-pressure cooling mechanism for die-casting mold pins, so as to solve the technical problem that the existing technology cannot use a straight pipe to directly insert into the inside of the pin tube for cooling.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A high-pressure cooling mechanism for die-casting mold pins includes a slider seat, a slider, and a high-pressure cooling unit;

[0007] The slider seat is detachably connected to the slider; a shaped pin is provided laterally inside the slider.

[0008] The high-pressure cooling unit includes a cooling water inlet pipe assembly, a cooling water outlet pipe assembly, and a high-pressure cooling core. The cooling water inlet pipe assembly includes a first cooling water inlet pipe and a second cooling water inlet pipe passing through the slider seat, with the first cooling water inlet pipe and the second cooling water inlet pipe communicating with each other. The cooling water outlet pipe assembly includes a first cooling water outlet pipe and a second cooling water outlet pipe passing through the slider seat, with the first cooling water outlet pipe and the second cooling water outlet pipe communicating with each other. The high-pressure cooling core passes through the inner cavity of the pin, and a water inlet channel is provided inside the high-pressure cooling core, which communicates with the second cooling water inlet pipe. A water outlet channel is formed between the high-pressure cooling core and the inner wall of the pin, and the water outlet channel communicates with the second cooling water outlet pipe.

[0009] This utility model also has the following technical features:

[0010] Specifically, the slider seat includes an integrally connected support part and a mounting part. A wedge block is inclinedly arranged on the upper surface of the support part, and the front end face of the wedge block is connected to the rear end face of the mounting part.

[0011] Furthermore, the mounting part has a first mounting hole and a second mounting hole laterally opened inside, the first mounting hole is through which the first point cold water inlet pipe passes, and the second mounting hole is through which the first point cold water outlet pipe passes.

[0012] Furthermore, the slider has a vertically accommodating space and a third mounting hole in the horizontal direction; the accommodating space is provided with the second cold water inlet pipe and the second cold water outlet pipe; and the third mounting hole is provided with the pin.

[0013] Furthermore, the rear part of the pin protrudes outward to form a mounting platform, and a sealing port coaxially communicating with the inner cavity is provided on the rear end face of the mounting platform; a fifth mounting hole and a sixth mounting hole communicating with the accommodating space are provided on the side wall of the mounting platform.

[0014] Furthermore, a sealing head is connected to the tail end of the high-pressure cooling tube core.

[0015] Furthermore, the high-pressure cooling core has a water inlet hole on its side wall that communicates with the water inlet channel, and the water inlet hole is connected to the second cooling water inlet pipe.

[0016] Furthermore, a diversion cone can be detachably provided at the top of the mounting part, and the front end face of the diversion cone can abut against the rear end face of the sealing head and the rear end face of the mounting platform, respectively.

[0017] Furthermore, the first cold water inlet pipe, the second cold water inlet pipe, the first cold water outlet pipe, and the second cold water outlet pipe have the same structure, and the first cold water inlet pipe has an L-shaped hole inside.

[0018] Furthermore, the inner diameter of the pin is 10mm. The inner diameter of the high-pressure cooling core is 4mm, and the outer diameter of the high-pressure cooling core is 8mm.

[0019] Compared with the prior art, this utility model has the following technical effects:

[0020] (1) This utility model addresses the problem of interference between the axial extension line of the inner hole of the die pin and the water channel of the diversion cone. Through structural design, the interference area is avoided, and continuous cooling of the die pin is achieved. This effectively solves the problem of shrinkage caused by the inability to cool, greatly improves the qualification rate of castings, ensures the quality of products, and ensures the smooth progress of die casting production.

[0021] (2) This utility model is easy to use, has strong applicability, and has great value for promotion and use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram illustrating the use of this utility model;

[0023] Figure 2 This is a cross-sectional view of the present invention;

[0024] Figure 3 This is a schematic diagram of the assembly of the pin and the high-pressure cooling unit;

[0025] Figure 4 This is a schematic diagram of the pin structure.

[0026] The meanings of the labels in the diagram are as follows:

[0027] 1-Slider seat, 2-Slider, 3-High-pressure cooling unit, 4-Pin, 5-Wedge block, 6-Sealing head, 7-Flow divider cone;

[0028] 11-Support section, 12-Mounting section;

[0029] 31 - Point-cooled water inlet pipe assembly; 32 - Point-cooled water outlet pipe assembly; 33 - High-pressure point-cooled pipe core;

[0030] 41-Hanging platform, 42-Blocking opening;

[0031] 311 - First cold water inlet pipe; 312 - Second cold water inlet pipe; 321 - First cold water outlet pipe; 322 - Second cold water outlet pipe;

[0032] 331 - Water inlet.

[0033] The specific content of this utility model will be further explained in detail below with reference to the embodiments. Detailed Implementation

[0034] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0035] The terms “upper,” “lower,” “front,” “rear,” “top,” and “bottom” used in this utility model are for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. “Inner” and “outer” refer to the inner and outer contours of the corresponding components, and the above terms should not be construed as limitations on this utility model.

[0036] Furthermore, the terms "first," "second," and other ordinal numbers are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0037] In this invention, unless otherwise stated, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] Unless otherwise specified, all components in this utility model can be purchased from the market.

[0039] Example 1

[0040] Following the above technical solutions, such as Figures 1 to 4 As shown, this embodiment provides a high-pressure cooling mechanism for die-casting mold pins, including a slider seat 1, a slider 2, and a high-pressure cooling unit 3; the slider seat 1 and the slider 2 are detachably connected, and in this embodiment, the slider seat 1 and the slider 2 are connected by bolts; a mold pin 4 is provided laterally along the inner edge of the slider;

[0041] The high-pressure cooling unit 3 includes a cooling water inlet pipe assembly 31, a cooling water outlet pipe assembly 32, and a high-pressure cooling tube core 33 made of stainless steel. The cooling water inlet pipe assembly 31 includes a first cooling water inlet pipe 311 passing through the slider seat 1 and a second cooling water inlet pipe 312 passing through the slider 2, with the first cooling water inlet pipe 311 and the second cooling water inlet pipe 312 connected. The cooling water outlet pipe assembly 32 includes a first cooling water outlet pipe 321 passing through the slider seat 1 and a second cooling water outlet pipe 322 passing through the slider, with the first cooling water outlet pipe 321 and the second cooling water outlet pipe 322 connected. The high-pressure cooling tube core 33 passes through the inner cavity of the pin 4, and a water inlet channel is provided inside the high-pressure cooling tube core 33, which is connected to the second cooling water inlet pipe 312. A water outlet channel is formed between the high-pressure cooling tube core 33 and the inner wall of the pin 4, and the water outlet channel is connected to the second cooling water outlet pipe 322.

[0042] Preferably, the first cold water inlet pipe 311, the second cold water inlet pipe 312, the first cold water outlet pipe 321, and the second cold water outlet pipe 322 are all made of rigid metal pipes, which have high strength and are easy to assemble and disassemble. The first cold water inlet pipe 311 and the second cold water inlet pipe 312 can be connected by threads, and the first cold water outlet pipe 321 and the second cold water outlet pipe 322 can also be connected by threads.

[0043] During cooling, cooling water enters the high-pressure cooling core 33 through the first cooling inlet pipe 311 and the second cooling inlet pipe 312. The cooling water flows inside the high-pressure cooling core 33 and enters the water outlet channel between the high-pressure cooling core 33 and the shaped pin to cool the shaped pin 4. The cooled water flows out through the second cooling outlet pipe 322 and the first cooling outlet pipe 321.

[0044] As a preferred embodiment, the slider seat 1 includes an integrally connected support part 11 and a mounting part 12. A wedge block 5 is inclinedly disposed on the upper end surface of the support part 11, and the front end surface of the wedge block 5 is connected to the rear end surface of the mounting part 12.

[0045] In a preferred embodiment, the mounting portion 12 has a first mounting hole and a second mounting hole laterally formed inside. A first cold water inlet pipe 311 passes through the first mounting hole, and a first cold water outlet pipe 321 passes through the second mounting hole. In this embodiment, the first mounting hole and the second mounting hole are arranged in parallel.

[0046] In a preferred embodiment, the slider 2 has a vertically accommodating space and a horizontally accommodating third mounting hole at one end near the slider seat 1; a second cold water inlet pipe 312 and a second cold water outlet pipe 322 are disposed within the accommodating space; and a pin 4 is disposed within the third mounting hole. The accommodating space has an open rear end and top structure to facilitate the installation and accommodating of the second cold water inlet pipe 312 and the second cold water outlet pipe 322.

[0047] As a preferred embodiment of this invention, such as Figure 4 As shown, the rear of the pin 4 protrudes outward to form a mounting platform 41. The mounting platform 41 can fit against the inner wall of the accommodating space and limit the pin 4. The lateral length of the mounting platform 41 is 55mm. A sealing port 42 coaxially communicating with the inner cavity is provided on the rear end face of the mounting platform 41; a fifth mounting hole and a sixth mounting hole communicating with the accommodating space are provided on the side wall of the mounting platform 41. The fifth mounting hole and the sixth mounting hole are used to pass through the second cold water inlet pipe 312 and the second cold water outlet pipe 322.

[0048] As a preferred embodiment of this invention, such as Figure 3 As shown, the high-pressure cooling tube core 33 has an outward protrusion at its end, with the outer wall of the protrusion fitting snugly against the inner wall of the pin. This prevents cold water entering from the second cooling water inlet pipe 312 from flowing into the space between the high-pressure cooling tube core 33 and the pin 4. A sealing head 6 is connected to the tail end of the high-pressure cooling tube core 33. The sealing head 6 can seal the high-pressure cooling tube core 33, and it can also cooperate with the sealing port to limit the movement of the high-pressure cooling tube core 33.

[0049] As a preferred embodiment, the high-pressure cooling core 33 has a water inlet hole 331 on its side wall that communicates with the water inlet channel, and the water inlet hole 331 is connected to the second cooling water inlet pipe 312.

[0050] As a preferred embodiment, the top of the mounting part 12 may also be detachably provided with a flow divider cone 7, the front end face of which can abut against the rear end face of the sealing head 6 and the rear end face of the mold pin mounting platform 41. When the molten metal is pushed by the injection punch, the flow divider cone 7 is used to evenly distribute the molten metal to the horizontal runner or ingate of the mold to avoid direct impact on the cavity or the formation of turbulence.

[0051] As a preferred embodiment, the first cold water inlet pipe 311, the second cold water inlet pipe 312, the first cold water outlet pipe 321, and the second cold water outlet pipe 322 have the same structure but different lengths. For example, in this embodiment, the length of the second cold water inlet pipe 312 is less than the length of the second cold water outlet pipe 322. An L-shaped hole is provided inside the first cold water inlet pipe 311.

[0052] As a preferred embodiment, the inner diameter of the pin 4 is 10mm; the inner diameter of the high-pressure cooling core 33 is 4mm, and the outer diameter of the high-pressure cooling core 33 is 8mm.

[0053] In this invention, during assembly, the high-pressure cooling core 33 and the sealing head 6 are welded together as a whole, and inserted into the inner cavity of the pin 4 from the rear end; the second cooling inlet pipe 312 and the second cooling outlet pipe 322 are connected to the pin 4 to form a whole; the pin 4 is inserted into the third mounting hole, and the pin 4 is limited by the mounting plate 41, at which time the second cooling inlet pipe 312 and the second cooling outlet pipe 322 remain in the accommodating space; the slider seat 1 and the slider 2 are connected, and the flow divider cone 7 is connected to the slider seat 1 by threads, and the rear end face of the flow divider cone 7 is used to press against the rear end face of the mounting plate 41 and the sealing head 6 to fix the pin 4 and the high-pressure cooling core 33. The first cooling inlet pipe 311 and the first cooling outlet pipe 321 are passed through the slider seat 1 and connected to the assembled second cooling inlet pipe 312 and the second cooling outlet pipe respectively to complete the assembly.

[0054] In use, cooling water enters the high-pressure cooling core 33 through the first cooling inlet pipe 311 and the second cooling inlet pipe 312. The cooling water flows inside the high-pressure cooling core 33 and enters the water outlet channel between the high-pressure cooling core 33 and the shaped pin to cool the shaped pin 4. The cooled water flows out through the second cooling outlet pipe 322 and the first cooling outlet pipe 321.

[0055] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0056] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0057] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A high-pressure cooling mechanism for die-casting mold pins, characterized in that, It includes a slider seat (1), a slider (2) and a high-pressure cooling unit (3); the slider seat (1) and the slider (2) are detachably connected; a pin (4) is provided laterally inside the slider. The high-pressure cooling unit (3) includes a cooling water inlet pipe assembly (31), a cooling water outlet pipe assembly (32), and a high-pressure cooling core (33). The cooling water inlet pipe assembly (31) includes a first cooling water inlet pipe (311) passing through the slider seat (1) and a second cooling water inlet pipe (312) passing through the slider (2). The first cooling water inlet pipe (311) and the second cooling water inlet pipe (312) are connected. The cooling water outlet pipe assembly (32) includes a first cooling water outlet pipe (321) passing through the slider seat (1). The first cold water outlet pipe (321) is connected to the second cold water outlet pipe (322) and the second cold water outlet pipe (322) are inserted into the slider. The high-pressure cold water core (33) is inserted into the inner cavity of the pin (4). The high-pressure cold water core (33) is provided with a water inlet channel, which is connected to the second cold water inlet pipe (312). A water outlet channel is formed between the high-pressure cold water core (33) and the inner wall of the pin (4), which is connected to the second cold water outlet pipe (322).

2. The high-pressure cooling mechanism for die-casting mold pins as described in claim 1, characterized in that, The slider seat (1) includes a support part (11) and a mounting part (12) that are integrally connected. A wedge block (5) is inclinedly arranged on the upper surface of the support part (11), and the front end face of the wedge block (5) is connected to the rear end face of the mounting part (12).

3. The high-pressure cooling mechanism for die-casting mold pins as described in claim 2, characterized in that, The mounting part (12) has a first mounting hole and a second mounting hole in the transverse direction. The first cold water inlet pipe (311) is inserted into the first mounting hole, and the first cold water outlet pipe (321) is inserted into the second mounting hole.

4. The high-pressure cooling mechanism for die-casting mold pins as described in claim 2, characterized in that, The slider (2) has a vertically accommodating space and a third mounting hole in the horizontal direction; the accommodating space is provided with the second cold water inlet pipe (312) and the second cold water outlet pipe (322); the third mounting hole is provided with the pin (4).

5. The high-pressure cooling mechanism for die-casting mold pins as described in claim 4, characterized in that, The rear part of the pin (4) protrudes outward to form a mounting platform (41), and a sealing port (42) coaxially communicating with the inner cavity is provided on the rear end face of the mounting platform (41); a fifth mounting hole and a sixth mounting hole communicating with the accommodating space are provided on the side wall of the mounting platform (41).

6. The high-pressure cooling mechanism for die-casting mold pins as described in claim 5, characterized in that, The high-pressure cooling core (33) is connected to a sealing head (6) at its tail end.

7. The high-pressure cooling mechanism for die-casting mold pins as described in claim 1, characterized in that, The high-pressure cooling core (33) has a water inlet hole (331) on its side wall that communicates with the water inlet channel. The water inlet hole (331) is connected to the second cooling water inlet pipe (312).

8. The high-pressure cooling mechanism for die-casting mold pins as described in claim 6, characterized in that, The top of the mounting part (12) can also be detachably provided with a diversion cone (7), the front end face of the diversion cone (7) can abut against the rear end face of the sealing head (6) and the rear end face of the mounting platform (41) respectively.

9. The high-pressure cooling mechanism for die-casting mold pins as described in claim 1, characterized in that, The first cold water inlet pipe (311), the second cold water inlet pipe (312), the first cold water outlet pipe (321) and the second cold water outlet pipe (322) have the same structure. An L-shaped hole is opened in the first cold water inlet pipe (311).

10. The high-pressure cooling mechanism for die-casting mold pins as described in claim 1, characterized in that, The inner diameter of the pin (4) is 10mm; the inner diameter of the high-pressure cooling core (33) is 4mm, and the inner and outer diameters of the high-pressure cooling core (33) are 8mm.

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