Liquid-cooled sand core forming mold

Abstract

The utility model relates to the technical field of dies, in particular to a liquid-cooled sand core forming die which comprises a core shooter body, the core shooter body comprises two dies and two sets of grooves, the two sets of grooves are formed in the side walls of the two dies respectively, the two grooves are arranged to form a concave cavity of a snakelike structure when the two dies are attached to each other, and the two sets of grooves are arranged on the side walls of the two dies respectively. A cooling pipe is arranged on one side of the concave cavity, a cold water tank is installed on one side of the cooling pipe, a supporting seat is fixedly installed on one side of the upper surface of the cold water tank, a threaded rod is rotationally sleeved with the supporting seat, a threaded block is sleeved with the threaded rod, and a fixing frame is fixedly welded to the upper surface of the threaded block; when demolding and coring need to be carried out, the cooling pipe is inserted into the S-shaped concave cavity composed of the grooves in a sliding mode, cold water in the cold water tank is injected into the cooling pipe at the moment, and therefore the cooling pipe cools the outer wall of the mold, a cavity in the mold is cooled, and an operator is prevented from being scalded when opening the mold to take out a sand core. And the sand core is further prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and particularly relates to a liquid-cooled sand core forming mold. Background Technique

[0002] A sand core is a material used to manufacture a core in foundry production, which is composed of foundry sand, sand binder, etc. In the manufacturing process, a sand core forming mold is usually used to facilitate the formation of the sand core.

[0003] In the prior art, sand core production is divided into hot core production and cold core production. The hot core production uses coated sand. After inspecting and cleaning the mold, the mold is heated by a core shooter with the machine temperature maintained at 220°C. Then, the mold is closed and sand is injected. After the sand core is cured in the cavity for a period of time, it is then demolded and taken out for curing. However, after the mold is opened, the temperature in the mold cavity is still relatively high, and the efficiency of static cooling is low. At the same time, even if the operator wears gloves to take out the sand core, it is easy to be scalded, which may cause damage to the sand core and thus affect the processing progress. Content of the Utility Model

[0004] The purpose of the utility model is to provide a liquid-cooled sand core forming mold to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A liquid-cooled sand core forming mold, comprising: a core shooter body, the core shooter body includes two molds, and the two molds are arranged to fit together during work.

[0006] Grooves, there are two groups, and are respectively opened on the side walls of the two molds. The two grooves are arranged to form a serpentine cavity when the two molds fit together. A cooling pipe is arranged on one side of the cavity, and a cold water tank is installed on one side of the cooling pipe.

[0007] On one side of the upper surface of the cold water tank, a support seat is fixedly installed. A threaded rod is rotatably sleeved in the support seat. A threaded block is sleeved on the threaded rod, and a fixed frame is fixedly welded on the upper surface of the threaded block.

[0008] Preferably, both sides of the top of the core shooter body are fixedly connected with support frames, and a fan is fixedly installed at one end of the support frames.

[0009] Preferably, the cooling pipe is fixedly sleeved in the fixed frame, and both the input end and the output end of the cooling pipe are fixedly installed with docking sleeves, and connecting sleeves are threadedly sleeved on the docking sleeves.

[0010] Preferably, a circulating pump is arranged on one side of the support seat. The lower surface of the circulating pump is fixedly connected with the cold water tank. A semiconductor refrigerator is installed on the lower side of the circulating pump, and the semiconductor refrigerator is fixedly connected with the cold water tank.

[0011] Preferably, there are two support seats in a group and they are symmetrically arranged about the central plane of the mold. A limiting plate is fixedly connected between the two support seats.

[0012] Preferably, a handwheel is fixedly sleeved at one end of the threaded rod. Slide rods are fixedly connected to both sides of the threaded block. The slide rods are inserted into the limiting plate and are slidably connected with the limiting plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The cooling pipe abuts against the inner wall of the concave cavity. At this time, the circulating pump is first started, so that the circulating pump first extracts the cooling water in the cold water tank through the suction pipe at its input end, and the cooling water enters from the input end of the cooling pipe. The cooling pipe is also in a snake shape, so that the heat exchange area can be increased, the cooling efficiency can be improved, the cooling water in the cooling pipe cools down the outer wall of the mold, quickly dissipates heat from the mold, and then accelerates the cooling of the inner cavity of the mold, thereby quickly cooling the core. The cooling water flows out from the output end of the snake-shaped cooling pipe, and the cooling water returns to the cold water tank through the water outlet telescopic hose. Then, under the action of the semiconductor refrigerator, it can be quickly cooled, so that the cooling water realizes the recycled use after cooling, avoiding the waste of water resources. The circulating pump pumps water again at this time, and so on, so that the cooling water continuously circulates in the cooling pipe, thus greatly accelerating the cooling speed of the mold, effectively improving the cooling efficiency of the mold, and further improving the production efficiency of the core. Then, by starting the fan, the fan blows air on the surface of the mold, thereby assisting in dissipating heat from the mold, further improving the cooling efficiency of the mold, quickly cooling the inner cavity of the mold, and thus preventing the operator from being scalded when taking out the core and affecting the quality of the core. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a top view schematic diagram of the overall structure of the present utility model;

[0016] Figure 3 is a bottom view schematic diagram of the entire structure of the present utility model;

[0017] Figure 4 is a side view schematic diagram of the internal structure of the present utility model.

[0018] In the figure: 1, core shooter body; 2, mold; 3, groove; 4, concave cavity; 5, cooling pipe; 6, cold water tank; 7, support seat; 8, threaded rod; 9, threaded block; 10, fixed frame; 11, support frame; 12, fan; 13, docking sleeve; 14, connecting sleeve; 15, circulating pump; 16, semiconductor refrigerator; 17, limiting plate; 18, handwheel; 19, slide rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to clearly and completely describe the purpose, technical solution of the present utility model and make the advantages more clearly understood, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0020] Embodiment 1: Please refer to Figures 1 - 4 , the present utility model provides a technical solution: a liquid-cooled sand core forming mold, including: a core shooter body 1, the core shooter body 1 includes two molds 2, the two molds 2 are arranged to fit together during operation, grooves 3, there are two groups, and are respectively opened on the side walls of the two molds 2, the two grooves 3 are arranged to form a serpentine cavity 4 when the two molds 2 fit together, a cooling pipe 5 is arranged on one side of the cavity 4, a cold water tank 6 is installed on one side of the cooling pipe 5, a support seat 7 is fixedly installed on one side of the upper surface of the cold water tank 6, a threaded rod 8 is rotatably sleeved in the support seat 7, a threaded block 9 is sleeved on the threaded rod 8, and a fixing frame 10 is welded and fixed on the upper surface of the threaded block 9.

[0021] After the two molds 2 are closed, the machine is heated, and sand is injected into the mold 2 through the core shooter body 1. The sand core is cured in the cavity of the mold 2 for a period of time. Then, when demolding and taking out the core, first rotate the threaded rod 8 installed on the support seat 7. The threaded rod 8 is provided with two sections of threads with opposite helix directions. Thus, under the rotation of the threaded rod 8, the threaded block 9 can be driven to move towards each other, so that the threaded block 9 drives the cooling pipe 5 to move towards the mold 2 through the fixing frame 10, so that the cooling pipe 5 is slidably inserted into the serpentine cavity 4 composed of the grooves 3. At this time, cold water in the cold water tank 6 is injected into the cooling pipe 5, so that the cooling pipe 5 cools down the outer wall of the mold 2, thereby cooling the inner cavity of the mold 2. The serpentine cooling pipe 5 can increase the heat exchange area, improve the air cooling efficiency, enhance the cooling effect of the sand core, and further avoid the operator from being scalded when opening the mold 2 to take out the sand core, and further avoid the damage of the sand core.

[0022] Embodiment 2: On the basis of Embodiment 1, on both sides of the top of the core shooter body 1, there are fixedly connected support frames 11. One end of the support frame 11 is fixedly installed with a fan 12. The support frames 11 fixedly installed on both sides of the top of the core shooter body 1 fixedly support the fan 12, so as to facilitate the auxiliary cooling of the mold 2 by the fan 12. The cooling pipe 5 is fixedly sleeved in the fixing frame 10. Docking sleeves 13 are fixedly installed at both the input end and the output end of the cooling pipe 5. A connecting sleeve 14 is threadedly sleeved on the docking sleeve 13. The fixing frame 10 fixedly supports the cooling pipe 5. Docking sleeves 13 are fixedly sleeved at both the input end and the output end of the cooling pipe 5. The docking sleeve 13 and the connecting sleeve 14 are threadedly connected, so as to facilitate installation and disassembly. The connecting sleeve 14 arranged on one side of the input end of the cooling pipe 5 can be fixedly connected to one end of the telescopic hose. The other end of the telescopic hose is communicated with the output end of the circulation pump 15. The input end of the circulation pump 15 is communicated with the cold water tank 6 through a suction pipe. The connecting sleeve 14 arranged on one side of the output end of the cooling pipe 5 can be fixedly connected to one end of the outlet telescopic hose. The other end of the outlet telescopic hose is communicated with the cold water tank 6. A circulation pump 15 is arranged on one side of the support seat 7. The lower surface of the circulation pump 15 is fixedly connected to the cold water tank 6. A semiconductor refrigerator 16 is installed below the circulation pump 15. The semiconductor refrigerator 16 is fixedly connected to the cold water tank 6. The circulation pump 15 facilitates the circulation of cold water in the cooling pipe 5. The semiconductor refrigerator 16 is fixedly installed on one side of the cold water tank 6. The semiconductor refrigerator 16 is formed by sequentially connecting a screw compressor, an evaporator and a condenser through copper pipes to form a loop structure, and the copper pipes are filled with a refrigerant. The refrigerant is compressed in the screw compressor to form steam, and then condensed through the condenser. The condensed refrigerant passes through the evaporator, and is evaporated through the evaporator. During the evaporation process, heat around is absorbed, thereby reducing the temperature of the surrounding air. At the same time, the refrigerant exchanges heat with the cooling water in the cold water tank 6 through the copper pipe for rapid heat exchange and cooling treatment. And the refrigerant steam after absorbing heat is compressed again by the compressor to complete a cycle.

[0023] The fan 12, the circulation pump 15, and the semiconductor refrigerator 16 are all electrically connected to an external terminal control device. When the cooling pipe 5 is slidably inserted into the serpentine cavity 4 formed by the grooves 3 on both sides of the mold 2, the cooling pipe 5 abuts against the inner wall of the cavity 4. At this time, first start the circulation pump 15, so that the circulation pump 15 first extracts the cooling water in the cold water tank 6 through the suction pipe at its input end, and then makes the cooling water enter the telescopic hose through its output end. Under the connection action of the telescopic hose, the connecting sleeve 14, and the docking sleeve 13, the cooling water enters from the input end of the cooling pipe 5. The cooling pipe 5 is also serpentine, so that the heat exchange area can be increased, the cooling efficiency can be improved, the cooling water in the cooling pipe 5 cools down the outer wall of the mold 2, quickly dissipates the heat of the mold 2, and then accelerates the cooling of the inner cavity of the mold 2, so as to quickly cool down the core. After passing through the serpentine cooling pipe 5, the cooling water flows out from its output end. Under the connection action of the docking sleeve 13, the connecting sleeve 14, and the outlet telescopic hose, the cooling water returns to the cold water tank 6 through the outlet telescopic hose. Then, under the action of the semiconductor refrigerator 16, it can be quickly cooled, so that the cooling water realizes the recycled use after cooling, avoiding the waste of water resources. At this time, the circulation pump 15 pumps water again, and so on, so that the cooling water continuously circulates in the cooling pipe 5, thus greatly accelerating the cooling speed of the mold 2, effectively improving the cooling efficiency of the mold 2, and further improving the production efficiency of the core. Then, by starting the fan 12, the fan 12 blows air on the surface of the mold 2, so as to assist in dissipating the heat of the mold 2, further improving the cooling efficiency of the mold 2, quickly cooling down the inner cavity of the mold 2, and thus preventing the operator from being scalded when taking out the core, affecting the quality of the core.

[0024] Embodiment 3: On the basis of Embodiment 2, there are a total of two support seats 7, which are symmetrically arranged about the central plane of the mold 2. A limiting plate 17 is fixedly connected between the two support seats 7. The support seats 7 are arranged on both sides of the core shooting machine body 1, so as to limit and support the threaded rod 8. A hand wheel 18 is fixedly sleeved at one end of the threaded rod 8. Slide rods 19 are fixedly connected to both sides of the threaded block 9. The slide rods 19 are inserted into the limiting plate 17 and are slidably connected with the limiting plate 17. By rotating the hand wheel 18, the threaded rod 8 is driven to rotate in the support seat 7, so as to facilitate the threaded rod 8 to drive the threaded block 9 to move. The slide rods 19 move in the limiting plate 17, so as to ensure the smooth movement of the threaded block 9.

[0025] All pipelines are connected in advance. When it is necessary to open the mold and take out the core, first rotate the handwheel 18, so that the handwheel 18 drives the threaded rod 8 to rotate in the support base 7, thereby driving the movement of the threaded block 9. Two sections of threads with opposite helix directions are provided on the threaded rod 8. The threaded block 9 is limited by the limiting plate 17 to the slide rod 19, so that the threaded block 9 moves on the threaded rod 8. The two threaded blocks 9 drive the fixed frames 10 to move towards each other, so that the fixed frames 10 drive the cooling pipes 5 fixedly installed thereon to move towards the mold 2 until the cooling pipes 5 are inserted into the concave cavity 4, thereby facilitating the cooling of the mold 2. After the cooling is completed, rotate the handwheel 18 in the reverse direction, and the cooling pipes 5 can be slid out of the concave cavity 4, thereby facilitating the subsequent operation of taking out the sand core. The overall operation is simple and convenient, does not affect the normal processing and production, and further improves the production efficiency of the sand core.

[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid-cooled core molding die, characterized in that, Including: A core shooter body (1), the core shooter body (1) includes two molds (2), and the two molds (2) are arranged to fit together during operation; Grooves (3), there are two groups, and are respectively opened on the side walls of the two molds (2). The two grooves (3) are arranged to form a concave cavity (4) with a serpentine structure when the two molds (2) fit together. A cooling pipe (5) is arranged on one side of the concave cavity (4), and a cold water tank (6) is installed on one side of the cooling pipe (5); On one side of the upper surface of the cold water tank (6), a support seat (7) is fixedly installed. A threaded rod (8) is rotatably sleeved in the support seat (7). A threaded block (9) is sleeved on the threaded rod (8). A fixed frame (10) is fixedly welded on the upper surface of the threaded block (9).

2. The liquid-cooled core forming die according to claim 1, wherein: On both sides of the top of the core shooter body (1), support frames (11) are fixedly connected. A fan (12) is fixedly installed at one end of the support frames (11).

3. The liquid-cooled core forming die according to claim 2, wherein: The cooling pipe (5) is fixedly sleeved in the fixed frame (10). Docking sleeves (13) are fixedly installed at both the input end and the output end of the cooling pipe (5). Connecting sleeves (14) are threadedly sleeved on the docking sleeves (13).

4. The liquid-cooled sand core forming die according to claim 3, wherein: A circulation pump (15) is arranged on one side of the support seat (7). The lower surface of the circulation pump (15) is fixedly connected to the cold water tank (6). A semiconductor refrigerator (16) is installed below the circulation pump (15). The semiconductor refrigerator (16) is fixedly connected to the cold water tank (6).

5. The liquid-cooled core forming die according to claim 4, wherein: There is a group of two support seats (7), which are symmetrically arranged with respect to the central plane of the mold (2). A limiting plate (17) is fixedly connected between the two support seats (7).

6. The liquid-cooled core forming die according to claim 5, characterized in that: A handwheel (18) is fixedly sleeved at one end of the threaded rod (8). Slide rods (19) are fixedly connected to both sides of the threaded block (9). The slide rods (19) are inserted into the limiting plate (17) and are slidably connected to the limiting plate (17).

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