Die-casting die

Abstract

The utility model relates to a die-casting die. The die-casting die comprises a movable die mechanism, a fixed die mechanism and a sliding block mechanism. The movable mold mechanism comprises a movable mold base and a movable mold plate installed on the top face of the movable mold base, the fixed mold mechanism comprises a fixed mold base, a fixed mold plate installed on the bottom face of the fixed mold base and a pouring runner installed on the fixed mold base, a main body part die-casting forming space is formed between the movable mold plate and the fixed mold plate, and the pouring runner communicates with the main body part die-casting forming space. The sliding block mechanism comprises a driver installed on one side of the movable mold base, a sliding block connected with the driver and a forming column installed at the end, away from the driver, of the sliding block, the sliding block is provided with a forming groove and a heating liquid pipeline, the heating liquid pipeline is arranged along the periphery of the forming groove, and part of the forming column extends out along the center of the forming groove. And a water nozzle part forming space is formed between the forming column and the forming groove. According to the scheme, the cold shut problem is avoided, the yield is high, and the production efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting molds, in particular to a die-casting mold. Background Art

[0002] With the development of society, new energy vehicles have become increasingly popular. Since heat dissipation in new energy vehicles is crucial and traditional air cooling is difficult to meet the requirements, a liquid cooling solution has started to be used. The liquid cooling solution requires a liquid cooling plate, which is mainly made in two ways. The first way is to press a steel water nozzle into a processed die-cast part. This method has high costs, a long process flow, and low efficiency. The second way is to directly form it integrally using die-casting technology. This method has high efficiency, but the forming position of the water nozzle part is far from the pouring gate, and the temperature is relatively low during forming, resulting in serious surface cold shut problems during forming, causing the overall yield rate of the product to be too low, often only 70%-75%, and thus the cost performance is low. Content of the Utility Model

[0003] Based on this, in view of the problems existing in the production and processing of the existing liquid cooling plate, it is necessary to provide a die-casting mold with high production efficiency, no cold shut problems, and a high yield rate.

[0004] A die-casting mold includes: a moving mold mechanism, a fixed mold mechanism assembled with the moving mold mechanism, and a sliding block mechanism installed on one side of the moving mold mechanism; the moving mold mechanism includes a moving mold base and a moving mold plate installed on the top surface of the moving mold base; the fixed mold mechanism includes a fixed mold base, a fixed mold plate installed on the bottom surface of the fixed mold base, and a pouring runner installed on the fixed mold base. A main body part die-casting forming space is formed between the moving mold plate and the fixed mold plate, and the pouring runner is communicated with the main body part die-casting forming space; the sliding block mechanism includes a driver installed on one side of the moving mold base, a sliding block connected to the driver, and a forming column installed at the end of the sliding block away from the driver; a forming groove and a heating liquid pipeline are provided on the sliding block, the heating liquid pipeline is arranged along the periphery of the forming groove, a part of the forming column extends out along the center of the forming groove, and a water nozzle part forming space is formed between the forming column and the forming groove. After the sliding block moves inward a preset distance under the action of the driver, the water nozzle part forming space is communicated with the main body part die-casting forming space.

[0005] When the above die-casting mold is used for die-casting, since the forming groove and the heating liquid pipeline are provided on the sliding block, and the heating liquid pipeline is arranged along the periphery of the forming groove, during use, a high-temperature resistant heat-conducting oil at a preset temperature is continuously circulated and supplied to the heating liquid pipeline through a mold temperature controller. Because the high-temperature resistant heat-conducting oil can provide a stable high temperature around the forming groove, the forming temperature during the forming of the nozzle part is guaranteed, and there will be no problem of surface cold shut due to low temperature. Therefore, the forming of the nozzle part will not have surface cold shut problems, the yield rate of the product is improved, and the production efficiency is correspondingly increased.

[0006] In one embodiment, a plurality of guide posts are installed on the top surface of the moving mold base, and a plurality of guide holes are provided at the bottom of the fixed mold base, and the guide holes are adapted to the guide posts.

[0007] In one embodiment, the sliding block mechanism further includes a support seat fixed on one side of the moving mold base, and the support seat is connected to the driver.

[0008] In one embodiment, the sliding block mechanism further includes a stroke rod, one end of the stroke rod is connected to the driver, and one end of the stroke rod is clamped with the sliding block.

[0009] In one embodiment, a clamping head is provided on the stroke rod, a clamping groove is provided on the sliding block, and the clamping head is adapted to the clamping groove.

[0010] In one embodiment, the sliding block mechanism further includes two slide rail groove blocks installed on the moving mold base, and slide rails adapted to the slide rail groove blocks are provided on both sides of the sliding block.

[0011] In one embodiment, it further includes a stripping plate movably installed below the moving mold base, and a plurality of stripping rods installed on the stripping plate and sequentially passing through the moving mold base and the moving template from bottom to top, and the end of the stripping rod away from the stripping plate is arranged opposite to the die-casting forming space of the main body part.

[0012] In one embodiment, it further includes a guide block installed on the bottom of the moving mold base, and the guide block is adapted to the stripping plate. Description of the Drawings

[0013] Figure 1 Schematic diagram of the liquid cooling plate produced by the die-casting mold of the present invention;

[0014] Figure 2 Schematic diagram of the die-casting mold of the present invention;

[0015] Figure 3 is Figure 2 Schematic diagram of another perspective of the die-casting mold shown;

[0016] Figure 4 is Figure 2 a partial schematic view of the die-casting mold shown;

[0017] Figure 5 is Figure 2 another partial schematic view of the die-casting mold shown;

[0018] Figure 6 is Figure 2 a schematic view of the slider mechanism in the die-casting mold shown;

[0019] Figure 7 is Figure 6 a schematic view of another perspective of the slider mechanism shown;

[0020] Figure 8 is Figure 6 a schematic view of the heating liquid pipeline in the slider mechanism shown;

[0021] Figure 9 is Figure 2 a schematic view of the limit ring model block in the die-casting mold shown;

[0022] Figure 10 is a flowchart of the die-casting method of the present invention. Specific embodiments

[0023] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. In addition, the term "and / or" in this article is only a description of the association relationship of the associated object, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention in this article are only for the purpose of describing specific embodiments. For example, terms such as "inside", "outside", "left", "right" and similar expressions are only for the purpose of illustration and are not intended to limit the present invention.

[0026] Please refer to Figure 1 , for the liquid cooling plate 200 die-cast by the die-casting mold 100 of the present utility model. The liquid cooling plate 200 includes a main body part 210 and a water nozzle part 220 which are integrally formed.

[0027] Please refer to Figures 2 to 9 , for the schematic diagram of the die-casting mold 100 of the present utility model. The die-casting mold 100 is assembled on a die-casting machine for use. The die-casting mold 100 includes: a moving die mechanism 20, a fixed die mechanism 30 assembled with the moving die mechanism 20, and a sliding block mechanism 40 installed on one side of the moving die mechanism 20. Among them, the sliding block mechanism 40 can be partially slid as needed to change the assembly relationship between the moving die mechanism 20 and the fixed die mechanism 30.

[0028] Further, the moving die mechanism 20 includes a moving die base 21 and a moving die plate 22 installed on the top surface of the moving die base 21. The fixed die mechanism 30 includes a fixed die base 31, a fixed die plate 32 installed on the bottom surface of the fixed die base 31, and a pouring runner 33 installed on the fixed die base 31. A main body part die-casting forming space is formed between the moving die plate 22 and the fixed die plate 32. The pouring runner 33 is communicated with the main body part die-casting forming space, so that the liquid metal can enter the main body part die-casting forming space through the pouring runner 33.

[0029] Further, the slider mechanism 40 includes a driver 41 installed on one side of the moving mold base 21, a slider 42 connected to the driver 41, and a forming post 43 installed on the end of the slider 42 away from the driver 41. A forming groove 44 and a heating liquid pipeline 45 are provided on the slider 42, and the heating liquid pipeline 45 is arranged along the periphery of the forming groove 44. A part of the forming post 43 extends out along the center of the forming groove 44, and a nozzle part forming space is formed between the forming post 43 and the forming groove 44. After the slider 42 moves inward a preset distance under the action of the driver 41, the nozzle part forming space communicates with the main body part die-casting forming space. In this embodiment, the driver 41 is specifically an oil cylinder, which is very stable and reliable in operation and has a good driving effect. It can be imagined that in other embodiments, the driver 41 can also be other types of driving mechanisms, as long as it can achieve telescopic driving, and no further limitation will be made here. During use, the heating liquid pipeline 45 is communicated with an external liquid supply device through a connecting pipe 300, and the external liquid supply device can input high-temperature heat-conducting oil heated to a certain temperature into the heating liquid pipeline 45. In this embodiment, the number of the forming grooves 44 and the forming posts 43 is two each, so that a nozzle part 220 for liquid inflow and a nozzle part 220 for liquid outflow can be formed after die-casting. During use, the heating liquid pipeline 45 is communicated with an external liquid supply device through a connecting pipe 300. In this embodiment, the heating liquid pipeline 45 includes two longitudinally arranged parallel pipe sections 451 and a transverse pipe section 452 with both ends respectively communicated with the two longitudinally arranged pipe sections 451. The transverse pipe section 452 is arranged in a right-angled Z shape, with one section passing above one of the forming grooves 44, the middle section extending downward between the two forming grooves 44, and the other section passing below the other forming groove 44. The slider 42 can be integrally formed or assembled in blocks. In this embodiment, it is assembled in two blocks.

[0030] Further, a plurality of guide posts 23 are installed on the top surface of the moving mold base 21, and a plurality of guide holes 34 are provided on the bottom of the fixed mold base 31. The guide holes 34 are adapted to the guide posts 23. The number of the guide bodies 23 is four and they are respectively located at the corner positions on the top surface of the moving mold base 21, and the number of the guide holes 34 is four and they are respectively located at the corner positions on the bottom of the fixed mold base 31.

[0031] Further, a limit ring model block 50 is installed on both the moving template 22 and the fixed template 32. Two grooves 51 are provided on the limit ring model block 50. When the limit ring model block 50 on the moving template 22 and the limit ring model block 50 on the fixed template 22 are assembled together, the two opposite grooves 51 form a complete annular groove. By forming the annular groove, a limit ring 230 can be formed on the die-cast nozzle part 220, which is convenient for connecting and fixing the nozzle part 220 with an external connecting pipe during use.

[0032] Further, the sliding block mechanism 40 further includes a support base 411 fixed on one side of the moving die base 21. The support base 411 is connected to the driver 41 to support the driver 41, where the driver 41 is a hydraulic cylinder. Even further, the sliding block mechanism 40 further includes a stroke rod 46. One end of the stroke rod 46 is connected to the driver 41, and one end of the stroke rod 46 is clamped to the sliding block 42. A clamping head 47 is provided on the stroke rod 46, and a clamping groove 48 is provided on the sliding block 42. The clamping head 47 is adapted to the clamping groove 48, so that the stroke rod 46 and the sliding block 42 can be quickly disassembled and assembled, with high convenience and speed.

[0033] Further, the sliding block mechanism 40 further includes two slide rail groove blocks 49 installed on the moving die base 21. Slide rails 421 adapted to the slide rail groove blocks 49 are provided on both sides of the sliding block 42. In this way, under the guiding action of the two slide rail groove blocks 49, the sliding block 42 slides horizontally more smoothly and stably, with good stability. In this embodiment, groove positions 70 are respectively formed on the moving die base 21 and the fixed die base 31. The groove positions 70 are used to install and accommodate the slide rail groove blocks 49 and the sliding block 32, facilitating the reservation of a sliding space for the sliding block 42.

[0034] Further, the die-casting mold 100 further includes a stripper plate 61 movably installed below the moving die base 21 and a plurality of stripping rods 62 installed on the stripper plate 61 and sequentially passing through the moving die base 21 and the moving template 22 from bottom to top. The end of the stripping rod 62 away from the stripper plate 61 is disposed opposite to the die-casting forming space of the main body part. During use, when die-casting forming is completed, the stripper plate 61 can drive the stripping rods 62 to move upward, thereby jacking up the liquid cooling plate 200 on the moving template 22 by a preset distance, and then completing the stripping operation. Among them, in order to ensure that the stripping operation is smoother, the die-casting mold 100 further includes a guiding block 63 installed below the moving die base 21. The guiding block 63 is adapted to the stripper plate 61. The number of the guiding blocks 63 is two, and the two guiding blocks 63 are symmetrically distributed on both sides of the stripper plate 61.

[0035] When the above die-casting mold 100 is used for die-casting, since the forming groove 44 and the heating liquid pipeline 45 are provided on the sliding block 42, and the heating liquid pipeline 45 is arranged along the periphery of the forming groove 44, during use, a high-temperature resistant heat-conducting oil at a preset temperature is continuously circulated and supplied to the heating liquid pipeline 45 through a mold temperature controller. Because the high-temperature resistant heat-conducting oil can provide a stable high temperature around the forming groove 44, the forming temperature during the forming of the nozzle part 220 is guaranteed, and there will be no problem of surface cold shut due to low temperature. Therefore, the forming of the nozzle part 220 will not have the problem of surface cold shut, the yield rate of the product is improved, and the production efficiency is correspondingly increased. The temperature of the high-temperature resistant heat-conducting oil is controlled between 180°C and 220°C, so that the temperature of the forming groove 44 can be maintained between 180°C and 220°C. In this way, when the liquid metal flow injected into the die-casting forming space of the main body part through the pouring runner 33 finally flows to the farthest forming groove 44, the forming groove 44 maintains the preset high temperature under the action of the high-temperature resistant heat-conducting oil, and there will be no problem of surface cold shut on the surface of the nozzle part 220 after forming due to low temperature.

[0036] On the other hand, please refer to Figure 10 , the present invention also provides a die-casting method, which uses the die-casting mold 100 of any one of the above to produce, and is characterized in that it includes the following steps:

[0037] S101: Spraying a release agent on the moving die mechanism, the fixed die mechanism, and the sliding block mechanism and closing the mold;

[0038] S102: Continuously circulating and supplying a high-temperature resistant heat-conducting oil at a preset temperature to the heating liquid pipeline through a mold temperature controller;

[0039] S103: Injecting a certain amount of liquid metal into the die-casting forming space of the main body part through the pouring runner;

[0040] S104: Pressurizing the moving die mechanism and the fixed die mechanism to obtain a cast product.

[0041] Further, in step S101, the release agent is sprayed on the surfaces of the moving die plate 22, the fixed die plate 32, and the forming groove 44. In step S102, the preset temperature is 180°C - 220°C, so that the temperature of the forming groove 44 can be maintained between 180°C and 220°C. In order to ensure the die-casting forming effect of the liquid cooling plate 200, before step S101, it also includes preheating the fixed die mechanism, the fixed die mechanism, and the sliding block mechanism.

[0042] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0043] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A die-casting mold, characterized in that: include: A movable mold mechanism, a fixed mold mechanism assembled with the movable mold mechanism, and a sliding block mechanism installed on one side of the movable mold mechanism; the movable mold mechanism includes a movable mold base and a movable mold plate installed on the top surface of the movable mold base; the fixed mold mechanism includes a fixed mold base, a fixed mold plate installed on the bottom surface of the fixed mold base and a pouring runner installed on the fixed mold base, a main body die-casting molding space is formed between the movable mold plate and the fixed mold plate, and the pouring runner is connected to the main body die-casting molding space; the sliding block mechanism includes a driver installed on one side of the movable mold base, a sliding block connected to the driver, and a molding column installed on the end of the sliding block away from the driver; a molding groove and a heating liquid pipeline are arranged on the sliding block, the heating liquid pipeline is arranged along the periphery of the molding groove, a part of the molding column extends out along the center of the molding groove, a faucet molding space is formed between the molding column and the molding groove, and the faucet molding space is connected to the main body die-casting molding space after the sliding block moves inward by a preset distance under the action of the driver.

2. The die-casting mold according to claim 1, characterized in that: A plurality of guide columns are installed on the top surface of the movable mold base, and a plurality of guide channels are arranged on the bottom of the fixed mold base, and the guide channels are adapted to the guide columns.

3. The die-casting mold according to claim 1, characterized in that: The sliding block mechanism also includes a support seat fixed on one side of the movable mold base, and the support seat is connected to the driver.

4. The die-casting mold according to claim 1, characterized in that: The sliding block mechanism further comprises a travel rod, one end of which is connected to the driver, and one end of which is engaged with the sliding block.

5. The die-casting mold according to claim 4, characterized in that: The travel rod is provided with a clamping joint, the sliding block is provided with a clamping groove, and the clamping joint is adapted to the clamping groove.

6. The die-casting mold according to claim 1, characterized in that: The sliding block mechanism also includes two sliding rail slot blocks installed on the movable mold base, and sliding rails adapted to the sliding rail slot blocks are arranged on both sides of the sliding block.

7. The die-casting mold according to claim 1, characterized in that: It also includes a stripping plate movably installed below the movable mold base, and a plurality of stripping rods installed on the stripping plate and passing through the movable mold base and the movable mold plate from bottom to top in sequence. The end of the stripping rod away from the stripping plate is arranged opposite to the die-casting molding space of the main body.

8. The die-casting mold according to claim 7, characterized in that: It also includes a guide block installed on the bottom of the movable mold base, and the guide block is adapted to the stripping plate.

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