A circulating cooling structure for die casting mold

Abstract

The utility model relates to the technical field of die-casting molds, specifically a circulating cooling structure of a die-casting mold, comprising a bottom plate, a movable mold and a fixed mold are respectively arranged on the top of the bottom plate, a cooling cavity is arranged inside the fixed mold, a cooling box is arranged outside the fixed mold, a liquid suction pipe is connected between the bottom of the cooling box and the bottom of the fixed mold, and a circulating pump is arranged on the top of the cooling box, a liquid outlet pipe is connected between the liquid outlet end of the circulating pump and the top of the fixed mold, and a support plate is installed on the inner wall of one side of the cooling cavity, a plurality of obliquely distributed slow flow plates are evenly arranged on the outer side of the support plate, and a cooling seat is arranged inside the cooling box. The circulating cooling structure of the die-casting mold can effectively slow down the flow rate of the coolant, so that the coolant has a longer contact with the mold, enhance the heat exchange efficiency, and avoid the local overcooling phenomenon caused by high-speed flow.

Description

Technical Field

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

[0002] Die casting mold is a tool for casting metal parts, a tool that completes the die casting process on a special die casting die forging machine. The basic process of die casting is: the molten metal is first cast into the mold cavity at a low speed or high speed. The mold has a movable cavity surface, which is pressurized and forged as the molten metal cools, eliminating the shrinkage and porosity defects of the blank and making the internal structure of the blank reach the broken grains in the forged state.

[0003] During the die-casting production process, the mold is kept at high temperature for a long time. If the heat cannot be dissipated effectively and in time, it will cause problems such as mold deformation, unstable die-casting dimensions, reduced surface quality, and shortened mold life. Traditional direct spraying or single-channel cooling methods often fail to achieve the ideal cooling effect, especially when the cooling medium (such as water) flows too fast, it is even more difficult to ensure uniform heat exchange in each area, which in turn exacerbates the problem of uneven cooling. Utility Model Content

[0004] The purpose of the utility model is to provide a circulating cooling structure for a die-casting mold to solve the problem that the current cooling method of the die-casting mold proposed in the above background technology is difficult to achieve an ideal cooling effect, especially when the cooling medium (such as water) flows too fast, it is more difficult to ensure that each area obtains uniform heat exchange, thereby exacerbating the problem of uneven cooling.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circulating cooling structure of a die-casting mold, comprising a bottom plate, a movable mold and a fixed mold are respectively provided on the top of the bottom plate, a cooling cavity is provided inside the fixed mold, a cooling box is provided outside the fixed mold, a suction pipe is connected between the bottom of the cooling box and the bottom of the fixed mold, and a circulating pump is provided on the top of the cooling box, a liquid outlet pipe is connected between the liquid outlet end of the circulating pump and the top of the fixed mold, and a support plate is installed on the inner wall of one side of the cooling cavity, a plurality of obliquely distributed slow flow plates are evenly provided on the outer side of the support plate, and a cooling seat is provided inside the cooling box.

[0006] Preferably, a plurality of strip-shaped flow guide grooves with arc-shaped inner walls are evenly arranged on the top surface of the slow flow plate, and the outer end of the slow flow plate corresponds to one side of the fixed mold core.

[0007] Preferably, a plurality of through holes are evenly arranged on the slow flow plate, and the through holes are all located in the gaps between the strip-shaped flow guide grooves, and a plurality of rectangular sheets are arranged around the inner walls of the through holes.

[0008] Preferably, a guide channel is provided at the center of the cooling seat, and the guide channel at the center of the cooling seat is provided with a plurality of special-shaped pieces which are staggered up and down.

[0009] Preferably, an annular liquid storage cavity is provided inside the cooling seat, and a liquid inlet and a liquid outlet penetrating to the outside of the cooling box are respectively provided at the upper and lower ends of the cooling seat.

[0010] Preferably, the upper and lower ends of the fixed mold are respectively provided with overflow channels cooperating with the liquid outlet pipe and the liquid suction pipe, and one side of the mold core of the fixed mold corresponds to the position of the movable mold.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the circulating cooling structure of the die-casting mold can effectively slow down the flow rate of the coolant, so that the coolant has a longer contact time with the mold, enhance the heat exchange efficiency, and avoid the local overcooling phenomenon caused by high-speed flow. The circulating cooling structure of the die-casting mold is provided with a plurality of slow-flow plates in the cooling cavity of the fixed mold. When the circulating pump, the liquid outlet pipe, the liquid suction pipe and the cooling box cooperate with each other to make the cooling water circulate in the cooling cavity, the slow-flow plates can concentrate the cooling water to one side of the mold core of the fixed mold, so as to slow down the flow rate of the cooling water so that it can fully contact with the fixed mold, and effectively improve the cooling rate and effect of the fixed mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a circulating cooling structure of a die-casting mold of the utility model;

[0013] Figure 2 This is a schematic diagram of the slow flow plate structure of a circulating cooling structure of a die-casting mold of the utility model;

[0014] Figure 3 The utility model is a schematic diagram of the internal top view of a cooling box of a circulating cooling structure of a die-casting mold.

[0015] In the figure: 1. bottom plate; 2. movable mold; 3. fixed mold; 4. cooling chamber; 5. cooling box; 6. liquid suction pipe; 7. circulation pump; 8. liquid outlet pipe; 9. support plate; 10. slow flow plate; 1001. strip guide groove; 1002. through hole; 11. cooling seat; 12. annular liquid storage chamber; 13. special-shaped sheet. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-3The utility model provides a technical solution: a circulating cooling structure of a die-casting mold, comprising a bottom plate 1, a movable mold 2 and a fixed mold 3 are respectively arranged on the top of the bottom plate 1, the bottom end of the movable mold 2 is connected to the top of the bottom plate 1 through a guide rail, and a cylinder is fixedly installed on the outside of the movable mold 2 through a bracket, the output end of the cylinder is fixedly connected to the middle of the back side of the movable mold 2, a cooling cavity 4 is arranged inside the fixed mold 3, a cooling box 5 is arranged outside the fixed mold 3, one side of the top of the cooling box 5 is provided with an armpit, the cooling box 5 is a cylindrical structure and its bottom end is fixed to the corresponding position of the top of the bottom plate 1, a liquid suction pipe 6 is connected between the bottom of the cooling box 5 and the bottom of the fixed mold 3, and a circulating pump 7 is fixedly installed on the top of the cooling box 5 by bolts, and the washing liquid end of the circulating pump 7 is extended into the cooling cavity 4 through a connecting pipe. Inside the cooling box 5, a liquid outlet pipe 8 is connected between the liquid outlet end of the circulation pump 7 and the top of the fixed mold 3, and a support plate 9 is fixedly installed on the inner wall of one side of the cooling chamber 4, and a plurality of inclined slow flow plates 10 are evenly arranged on the outer side of the support plate 9, and the inner end of the slow flow plate 10 is welded and fixed to the inner wall of one side of the cooling chamber 4, and a cooling seat 11 is arranged inside the cooling box 5, and the cooling seat 11 is a cylindrical structure and the two sides of the bottom end are supported in the middle of the cooling box 5 by support blocks. When the circulation pump 7 of this structure is started, the cooling water inside the cooling box 5 can be transported to the inside of the cooling chamber 4 through the liquid outlet pipe 8 to cool the fixed mold 3. After the cooling water flows through the cooling chamber 4, it can flow back to the inside of the cooling box 5 through the liquid suction pipe 6. The cooling water flowing back to the inside of the cooling box 5 can The cooling water can be cooled again by the cooling seat 11, so that the cooling water inside the cooling box 5 circulates and cools the fixed mold 3, and the cooling water will contact with a plurality of slow flow plates 10 when flowing through the cooling chamber 4. The slow flow plates 10 can concentrate the cooling water to the side of the mold core of the fixed mold 3 to slow down the flow of the cooling water so that it can fully contact with the fixed mold 3, thereby achieving a more effective cooling effect on the fixed mold 3, accelerating the cooling speed and improving the cooling effect, avoiding the problem that the existing die-casting mold has a simple design of the cooling channel, resulting in the cooling medium flowing too fast during the flow process and it is difficult to ensure uniform heat exchange in each area. The top surface of the slow flow plate 10 is evenly provided with a plurality of strip guide grooves 1001 with an arc-shaped inner wall, and the outer end of the slow flow plate 10 is in contact with the mold core of the fixed mold 3. Corresponding to one side of the core, the strip guide groove 1001 of this structure can evenly guide the cooling water overflowing to the slow flow plate 10 to the side of the mold core of the cooling chamber 4 close to the fixed mold 3, thereby achieving a more effective cooling effect and effectively slowing down the flow rate of the cooling water. The slow flow plate 10 is also evenly provided with a plurality of through holes 1002, and the through holes 1002 are all located in the gaps between the strip guide grooves 1001, and a plurality of rectangular sheets are arranged around the inner wall of the through hole 1002. The through holes 1002 of this structure can ensure that the cooling water can smoothly pass through the slow flow plate 10 and overflow downward, thereby maintaining the continuous circulation of the cooling water, and the rectangular sheets on the inner wall of the through hole 1002 can also slow down the flow rate of the cooling water. A guide channel is provided at the center of the cooling seat 11.The guide channel at the center of the cooling seat 11 is provided with a plurality of special-shaped pieces 13 which are staggered up and down. The cooling seat 11 is provided with an annular liquid storage cavity 12 inside, and the upper and lower ends of the cooling seat 11 are respectively provided with a liquid inlet and a liquid outlet which penetrate to the outside of the cooling box 5. The cooling seat 11 with this structure can add an appropriate amount of coolant to the inside of the annular liquid storage cavity 12. When the cooling water flows through the guide channel on the cooling seat 11 inside the cooling box 5, the cooling seat 11 can cool the cooling water again through the coolant inside the annular liquid storage cavity 12, and the special-shaped pieces 13 can also slow down the speed of the cooling water when passing through the guide channel of the cooling seat 11, so that the cooling effect is better, which is beneficial to extend the continuity of the cooling water circulation. The upper and lower ends of the fixed mold 3 are respectively provided with overflow channels which cooperate with the liquid outlet pipe 8 and the liquid suction pipe 6, and one side of the mold core of the fixed mold 3 corresponds to the position of the movable mold 2. The overflow channels at the upper and lower ends of the fixed mold 3 with this structure which cooperate with the liquid outlet pipe 8 and the liquid suction pipe 6 can ensure the smooth circulation of the cooling water. ,

[0018] Working principle: When using the circulating cooling structure of the die-casting mold, first, when the movable mold 2 is driven by the cylinder to move horizontally on the top of the bottom plate 1 and to close the mold with the fixed mold 3, add a proper amount of cooling water to the inside of the cooling box 5 and start the circulating pump 7. When the circulating pump 7 is started, the cooling water in the cooling box 5 is transported to the inside of the cooling chamber 4 through the outlet pipe 8. When the cooling water flows through the cooling chamber 4, it will contact with several slow flow plates 10. At this time, several strip guide grooves 1001 on the slow flow plates 10 will concentrate most of the cooling water to the mold core of the cooling chamber 4 near the fixed mold 3. On one side, the cooling effect of the core of the fixed mold 3 will be better, and a part of the cooling water will pass through several through holes 1002 and contact with the rectangular sheets to slowly overflow. The cooling water flows through the cooling chamber 4 and then flows back to the interior of the cooling box 5 through the suction pipe 6. The cooling water flowing back to the interior of the cooling box 5 will pass through the guide channel on the cooling seat 11 when it rises and contact with several special-shaped sheets 13. At this time, the cooling seat 11 will cool the cooling water through the coolant added by the annular liquid storage chamber 12, so that the cooling water is circulated to cool the fixed mold 3, thereby completing a series of tasks.

[0019] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A circulating cooling structure for a die-casting mold, comprising a bottom plate (1), a movable mold (2) and a fixed mold (3) are respectively arranged on the top of the bottom plate (1), and a cooling cavity (4) is arranged inside the fixed mold (3), characterized in that: A cooling box (5) is provided outside the fixed mold (3), a liquid suction pipe (6) is connected between the bottom of the cooling box (5) and the bottom of the fixed mold (3), and a circulating pump (7) is provided on the top of the cooling box (5), a liquid outlet pipe (8) is connected between the liquid outlet end of the circulating pump (7) and the top of the fixed mold (3), and a support plate (9) is installed on the inner wall of one side of the cooling chamber (4), a plurality of obliquely distributed slow flow plates (10) are evenly provided on the outer side of the support plate (9), and a cooling seat (11) is provided inside the cooling box (5).

2. The circulating cooling structure of a die-casting mold according to claim 1, characterized in that: The top surface of the slow flow plate (10) is evenly provided with a plurality of strip-shaped flow guide grooves (1001) whose inner walls are arc-shaped structures, and the outer end of the slow flow plate (10) corresponds to one side of the core of the fixed mold (3).

3. The circulating cooling structure of a die-casting mold according to claim 2, characterized in that: The slow flow plate (10) is also evenly provided with a plurality of through holes (1002), and the through holes (1002) are all located in the gaps between the strip-shaped flow guide grooves (1001), and a plurality of rectangular sheets are arranged around the inner walls of the through holes (1002).

4. The circulating cooling structure of a die-casting mold according to claim 1, characterized in that: A flow guide channel is provided at the center of the cooling seat (11), and the flow guide channel at the center of the cooling seat (11) is provided with a plurality of special-shaped pieces (13) that are staggered up and down.

5. The circulating cooling structure of a die-casting mold according to claim 1, characterized in that: An annular liquid storage cavity (12) is provided inside the cooling seat (11), and a liquid inlet and a liquid outlet are respectively provided at the upper and lower ends of the cooling seat (11) and extend to the outside of the cooling box (5).

6. The circulating cooling structure of a die-casting mold according to claim 1, characterized in that: The upper and lower ends of the fixed mold (3) are respectively provided with overflow channels that cooperate with the liquid outlet pipe (8) and the liquid suction pipe (6), and one side of the mold core of the fixed mold (3) corresponds to the position of the movable mold (2).

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