Die machining device for mechanical casting

Abstract

The utility model provides a mold processing device for mechanical casting, which relates to the technical field of mold processing and comprises a casting mechanism and a heat exchange mechanism. According to the utility model, when cooling water is accurately injected into the heat exchange tank through the water inlet valve, the cooling water rotates at a high speed through the rotating blade, the pushing rotating shaft and the mixing paddle, so that the cooling water sufficiently exchanges heat with the hot water pipe, waste heat conducted by the mold is quickly absorbed, and the extreme temperature difference between the initial cooling water and the mold is greatly reduced; then preheated cooling water enters the mold core through the cold water pipe, the temperature of the cooling water is in gradient matching with the surface layer of the mold, stable heat absorption is achieved, the heated cooling water flows back to the heat exchange tank through the hot water pipe, gradient preheating is continuously provided for subsequent cooling water, and the dynamic heat balance mechanism ensures that the cooling rates of all parts of the mold are consistent; the cracking and deformation risks caused by thermal stress are remarkably reduced, the service life of the mold is prolonged, and the casting precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of mold processing technology, and in particular to a mold processing device for mechanical casting. Background Technology

[0002] Mold processing is a crucial link in the manufacturing industry. It involves the design, manufacturing, debugging, and maintenance of molds, aiming to produce high-precision, high-quality molds to meet the production needs of various industrial products. As a basic process equipment in industrial production, the quality and precision of molds directly affect the quality of the final product and production efficiency.

[0003] In mechanical casting production, cooling water is usually needed to achieve rapid cooling and hardening. However, when there is a large temperature difference between the cooling water and the mold, the surface of the mold will shrink rapidly due to sudden cooling, while the inside will remain at a high temperature. This significant internal and external temperature difference will cause uneven thermal expansion and contraction, which will lead to mold deformation and cracking, seriously affecting its dimensional accuracy and shape stability, and deteriorating the performance of the mold material and shortening its life. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the large temperature difference between the cooling water and the mold affects the performance of the final mold during the use of the above-mentioned equipment, and thus proposes a mold processing device for mechanical casting.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a mold processing device for mechanical casting, comprising a casting mechanism and a heat exchange mechanism;

[0006] The casting mechanism, as the main forming structure, is used for casting molds;

[0007] The heat exchange mechanism, which is connected to the outer wall of the casting mechanism, is used to gradually reduce the water temperature and prevent the mold from experiencing a sudden temperature drop due to the low temperature of the cooling water.

[0008] The heat exchange mechanism includes a heat exchange tank, a shaft hole at the top of the heat exchange tank, an inlet valve fixedly connected to the top of the heat exchange tank, a cold water pipe fixedly connected to the output end of the heat exchange tank, a hot water pipe fixedly inserted inside the heat exchange tank, a rotating shaft movably inserted into the inner wall of the shaft hole, a set of mixing blades fixedly installed on the outer wall of the rotating shaft, a filter screen fixedly sleeved on the outer wall of the rotating shaft, the outer wall of the filter screen movably inserted into the inner wall of the heat exchange tank, and a set of rotating blades fixedly installed on the outer wall of the rotating shaft.

[0009] When mold cooling is required, cooling water is first injected into the heat exchange tank through the inlet valve. When the cooling water comes into contact with the internal rotating blades, the blades drive the shaft to rotate inside the shaft hole. At the same time, a set of mixing blades located on the outer wall of the shaft rotates accordingly, ensuring full contact with the internal hot water pipes. The water remaining inside the hot water pipes is heated by the high-temperature mold and transfers heat to the cooling water, thus preventing excessive temperature difference between the cooling water and the mold. When the subsequently heated cooling water is transported to the mold core through the cold water pipe, it begins to absorb heat from the mold. After cooling is complete, the heated cooling water is discharged through the hot water pipe and heats the subsequent cooling water inside the heat exchange tank, ensuring that the cooling rate of each part of the mold is consistent, reducing the risk of mold cracking and deformation, and improving the service life and quality of the mold. By heating the subsequent cooling water with the heat-absorbing cooling water, it is ensured that the cooling water temperature drops as the mold temperature decreases, further ensuring that the cooling water temperature is stable and not much different from the mold temperature, achieving smooth cooling.

[0010] Preferably, the casting mechanism includes a base, and a set of guide columns are fixedly installed on the top of the base to prevent the movement direction of the related structure from deviating.

[0011] Preferably, a top plate is fixedly installed between the tops of a group of guide columns, and a cylinder is fixedly installed on the top of the top plate. The cylinder serves as a power source and can drive the relevant components to move.

[0012] Preferably, a piston rod is fixedly installed at the output end of the cylinder, the outer wall of the piston rod is movably inserted into the interior of the top plate, a movable plate is fixedly installed at the bottom of the piston rod, and the outer walls of a group of guide pillars are movably inserted into the interior of the movable plate. The cylinder drives the bottom movable plate to descend through the piston rod, thereby causing the mold core to begin closing and completing the preparation work.

[0013] Preferably, a set of dampers is fixedly installed at the bottom of the movable plate, and a set of springs is fixedly installed at the bottom of the movable plate. An upper mold core is fixedly installed between the telescopic ends of the set of dampers. The input end of the upper mold core is fixedly connected to the output end of the cold water pipe. The top of the upper mold core is fixedly connected to the bottom of the set of springs. The upper mold core and the movable plate are connected by dampers and springs. The two can effectively absorb and disperse impact energy, avoid damage caused by direct collision of the mold core, and reduce maintenance costs.

[0014] Preferably, the bottom of the upper mold core is fixedly connected to a set of flow pipes, and the top of the base is fixedly installed with a lower mold core. The output end of the lower mold core is fixedly connected to the input end of the hot water pipe. The top of the lower mold core is provided with a set of flow holes. When the upper mold core descends, it will drive the flow pipes at the bottom to insert into the flow holes. Since both mold cores are provided with water cavities, it is convenient for cooling water to absorb the heat of the mold. At this time, the two water cavities begin to form a whole, which facilitates the flow of cooling water inside both.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, when cooling water is precisely injected into the heat exchange tank through the inlet valve, the cooling water drives the rotating shaft and mixing paddle to rotate at high speed through the rotating blades, thereby fully exchanging heat with the hot water pipe and quickly absorbing the residual heat conducted by the mold. This significantly reduces the extreme temperature difference between the initial cooling water and the mold. Subsequently, the preheated cooling water enters the mold core through the cold water pipe, and its temperature has formed a gradient match with the surface of the mold, achieving stable heat absorption. The heated cooling water flows back to the heat exchange tank through the hot water pipe, continuously providing gradient preheating for subsequent cooling water. This dynamic thermal balance mechanism ensures that the cooling rate of each part of the mold is consistent, significantly reducing the risk of cracking and deformation caused by thermal stress, extending the service life of the mold and improving the precision of the casting. Attached Figure Description

[0017] Figure 1 This utility model provides a front view perspective of a mold processing device for mechanical casting.

[0018] Figure 2 This utility model provides a top perspective view of the casting mechanism in a mold processing device for mechanical casting;

[0019] Figure 3 This utility model provides a three-dimensional schematic diagram of a heat exchange mechanism in a mold processing device for mechanical casting.

[0020] Figure 4 This utility model provides a sectional perspective view of a heat exchange mechanism in a mold processing device for mechanical casting.

[0021] Legend:

[0022] 1. Casting mechanism; 101. Base; 102. Guide column; 103. Top plate; 104. Cylinder; 105. Piston rod; 106. Moving plate; 107. Damper; 108. Spring; 109. Upper mold core; 110. Flow pipe; 111. Lower mold core; 112. Flow hole; 2. Heat exchange mechanism; 201. Heat exchange tank; 202. Shaft hole; 203. Water inlet valve; 204. Cold water pipe; 205. Hot water pipe; 206. Rotating shaft; 207. Mixing paddle; 208. Filter screen; 209. Rotating blade. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Please see Figures 1-4 This utility model provides a technical solution: a mold processing device for mechanical casting, including a casting mechanism 1 and a heat exchange mechanism 2;

[0026] Casting mechanism 1, as the main forming structure, is used for casting molds;

[0027] The heat exchange mechanism 2 is connected to the outer wall of the casting mechanism 1 and is used to gradually reduce the water temperature to prevent the mold from experiencing a sudden temperature drop due to the low temperature of the cooling water.

[0028] The heat exchange mechanism 2 includes a heat exchange tank 201. A shaft hole 202 is provided on the top of the heat exchange tank 201. A water inlet valve 203 is fixedly connected to the top of the heat exchange tank 201. A cold water pipe 204 is fixedly connected to the output end of the heat exchange tank 201. A hot water pipe 205 is fixedly inserted inside the heat exchange tank 201. A rotating shaft 206 is movably inserted into the inner wall of the shaft hole 202. A set of mixing blades 207 is fixedly installed on the outer wall of the rotating shaft 206. A filter screen 208 is fixedly sleeved on the outer wall of the rotating shaft 206. The outer wall of the filter screen 208 is movably inserted into the inner wall of the heat exchange tank 201. A set of rotating blades 209 is fixedly installed on the outer wall of the rotating shaft 206.

[0029] When mold cooling is required, cooling water can be injected into the heat exchange tank 201 through the water inlet valve 203. When the cooling water comes into contact with the internal rotating blades 209, the rotating blades 209 will drive the rotating shaft 206 to rotate inside the shaft hole 202. At this time, a set of mixing blades 207 located on the outer wall of the rotating shaft 206 will also rotate, allowing them to fully contact the internal hot water pipe 205. The water remaining inside the hot water pipe 205 will be heated by the high-temperature mold, transferring heat to the cooling water, thus preventing excessive temperature difference between the cooling water and the mold. The post-heated cooling water is transported to the mold core through the cold water pipe 204 to begin absorbing heat from the inside of the mold. After cooling is complete, the heated cooling water is discharged through the hot water pipe 205 and heated in the heat exchange tank 201 to ensure that the cooling rate of each part of the mold is consistent, reducing the risk of mold cracking and deformation, and improving the service life and quality of the mold. By heating the subsequent cooling water with the heat-absorbing cooling water, it can be ensured that the cooling water temperature drops as the mold temperature drops, further ensuring that the cooling water temperature is stable and not much different from the mold temperature, thus achieving smooth cooling.

[0030] like Figures 1-2 As shown, the casting mechanism 1 includes a base 101, and a set of guide columns 102 are fixedly installed on the top of the base 101. The guide columns 102 are used to prevent the movement direction of the related structure from deviating.

[0031] like Figures 1-2 As shown, a top plate 103 is fixedly installed between the tops of a set of guide columns 102, and a cylinder 104 is fixedly installed on the top of the top plate 103. The cylinder 104 serves as a power source and can drive the relevant components to move.

[0032] like Figures 1-2 As shown, a piston rod 105 is fixedly installed at the output end of the cylinder 104. The outer wall of the piston rod 105 is movably inserted into the interior of the top plate 103. A movable plate 106 is fixedly installed at the bottom of the piston rod 105. A set of guide pillars 102 are movably inserted into the interior of the movable plate 106 between the outer walls. The cylinder 104 drives the bottom movable plate 106 to descend through the piston rod 105, thereby causing the mold core to begin closing and completing the preparation work.

[0033] like Figures 1-2 As shown, a set of dampers 107 are fixedly installed at the bottom of the movable plate 106, and a set of springs 108 are fixedly installed at the bottom of the movable plate 106. An upper mold core 109 is fixedly installed between the telescopic ends of the set of dampers 107. The input end of the upper mold core 109 is fixedly connected to the output end of the cold water pipe 204. The top of the upper mold core 109 is fixedly connected to the bottom of the set of springs 108. The upper mold core 109 and the movable plate 106 are connected by the dampers 107 and the springs 108. The two can effectively absorb and disperse impact energy, avoid damage caused by direct collision of the mold core, and reduce maintenance costs.

[0034] like Figures 1-2 As shown, a set of flow pipes 110 are fixedly connected to the bottom of the upper mold core 109, and a lower mold core 111 is fixedly installed on the top of the base 101. The output end of the lower mold core 111 is fixedly connected to the input end of the hot water pipe 205. A set of flow holes 112 are opened on the top of the lower mold core 111. When the upper mold core 109 descends, it will drive the flow pipes 110 at the bottom to insert into the flow holes 112. Since both mold cores have water cavities, it is convenient for the cooling water to absorb the heat of the mold. At this time, the two water cavities begin to form a whole, which facilitates the flow of cooling water inside both.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A mold processing device for mechanical casting, characterized in that, include: Casting mechanism (1) and heat exchange mechanism (2); The casting mechanism (1) serves as the main forming structure and is used for casting molds; The heat exchange mechanism (2) is connected to the outer wall of the casting mechanism (1) and is used to gradually reduce the water temperature to prevent the mold from experiencing a sudden drop in temperature due to the low temperature of the cooling water. The heat exchange mechanism (2) includes a heat exchange tank (201), a shaft hole (202) is provided at the top of the heat exchange tank (201), a water inlet valve (203) is fixedly connected to the top of the heat exchange tank (201), a cold water pipe (204) is fixedly connected to the output end of the heat exchange tank (201), a hot water pipe (205) is fixedly inserted inside the heat exchange tank (201), a rotating shaft (206) is movably inserted into the inner wall of the shaft hole (202), a set of mixing paddles (207) is fixedly installed on the outer wall of the rotating shaft (206), a filter screen (208) is fixedly sleeved on the outer wall of the rotating shaft (206), the outer wall of the filter screen (208) is movably inserted into the inner wall of the heat exchange tank (201), and a set of rotating blades (209) is fixedly installed on the outer wall of the rotating shaft (206).

2. The mold processing device for mechanical casting according to claim 1, characterized in that: The casting mechanism (1) includes a base (101), and a set of guide columns (102) are fixedly installed on the top of the base (101).

3. The mold processing device for mechanical casting according to claim 2, characterized in that: A top plate (103) is fixedly installed between the tops of a group of guide columns (102), and a cylinder (104) is fixedly installed on the top of the top plate (103).

4. The mold processing device for mechanical casting according to claim 3, characterized in that: A piston rod (105) is fixedly installed at the output end of the cylinder (104). The outer wall of the piston rod (105) is movably inserted into the interior of the top plate (103). A movable plate (106) is fixedly installed at the bottom of the piston rod (105). A set of guide columns (102) are movably inserted into the interior of the movable plate (106) between their outer walls.

5. A mold processing device for mechanical casting according to claim 4, characterized in that: A set of dampers (107) is fixedly installed at the bottom of the movable plate (106), and a set of springs (108) is fixedly installed at the bottom of the movable plate (106). An upper mold core (109) is fixedly installed between the telescopic ends of the set of dampers (107). The input end of the upper mold core (109) is fixedly connected to the output end of the cold water pipe (204), and the top of the upper mold core (109) is fixedly connected to the bottom of the set of springs (108).

6. A mold processing device for mechanical casting according to claim 5, characterized in that: The bottom of the upper mold core (109) is fixedly connected to a set of flow pipes (110), and the top of the base (101) is fixedly installed with a lower mold core (111). The output end of the lower mold core (111) is fixedly connected to the input end of the hot water pipe (205), and a set of flow holes (112) are opened on the top of the lower mold core (111).

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