Die-casting die capable of easily extruding and pushing die casting

Abstract

The utility model discloses a die-casting die capable of easily extruding and pushing a die casting, which belongs to the technical field of die-casting dies and comprises an upper die connected with a lower die in a sliding manner. A demolding structure is arranged on the lower mold; and the demolding structure comprises a connecting piece installed on the side, close to the upper mold, of the lower mold, a motor is installed on the inner wall, away from the connecting piece, of the lower mold, a threaded rod is installed at the output end of the motor, the outer wall of the threaded rod is in threaded connection with a circular plate, and a pushing piece is arranged at the top of the circular plate. Through the arrangement of the demolding structure, liquid metal is injected into the position between the upper mold and the lower mold through the upper mold, then a motor is started to drive a pushing piece to move, a telescopic rod and a second spring are driven to contract, and the extrusion effect of the upper mold and the lower mold on a die casting is improved; and the pushing piece is driven to push the die casting, so that the demolding and film pressing effects are effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of die-casting molds. Specifically, it relates to a die-casting mold that is easy to extrude and push die-castings. Background Art

[0002] A die-casting mold is a mold used in the pressure casting process. It is used to quickly fill the mold cavity with liquid or semi-liquid metal under high pressure and quickly solidify under pressure to obtain castings. The molten metal is first cast into the mold cavity at low or high speed. The mold has a movable cavity surface, which is forged under pressure as the molten metal cools.

[0003] However, after the die-casting of die-castings is completed by the die-casting mold, some die-castings have irregular shapes, such as protrusions or depressions, which will increase the friction between the casting and the mold, form a resistance force, and thus affect the demolding problem of the die-casting.

[0004] To solve the above problems, a die-casting mold that is easy to extrude and push die-castings is proposed in this application. Summary of the Utility Model

[0005] In view of the problems in the related art, the utility model proposes a die-casting mold that is easy to extrude and push die-castings to overcome the above technical problems existing in the existing related technologies.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A die-casting mold that is easy to extrude and push die-castings includes an upper mold, and a lower mold is slidably connected to the upper mold;

[0008] A demolding structure is arranged on the lower mold;

[0009] The demolding structure includes a connecting piece installed on the side of the lower mold close to the upper mold. A motor is installed on the inner wall of the lower mold away from the connecting piece. A threaded rod is installed at the output end of the motor. A round plate is threadedly connected to the outer wall of the threaded rod. A pushing piece is arranged at the top of the round plate. A connecting block is slidably connected to the inner wall of the pushing piece. A fixed die piece is installed on the outer wall of the connecting block. The outer wall of the fixed die piece is slidably connected to the inner wall of the pushing piece, and the outer wall of the fixed die piece is inserted into the inner wall of the upper mold.

[0010] A fixing plate is installed on the top wall of the round plate. The pushing piece is located above the fixing plate. By setting the fixing plate, it is convenient to move the pushing piece.

[0011] A balance plate is installed on the outer wall of the fixing plate. The balance plate is located below the pushing piece. By setting the balance plate, it is used to increase the range of the fixing plate and improve the movement of the pushing piece.

[0012] A first spring is installed on the top wall of the balance plate. A rubber pad is installed on the top wall of the first spring. The top wall of the rubber pad is fixedly connected to the bottom wall of the pushing member. By providing the first spring, the effect of moving the pushing member is further enhanced.

[0013] A limiting plate is installed on the top wall of the threaded rod. The bottom wall of the limiting plate is not in contact with the top wall of the circular plate. By providing the limiting plate, the threaded rod is effectively prevented from detaching from the circular plate.

[0014] An expansion rod is installed on the inner bottom wall of the pushing member. An expansion rod is installed on the inner bottom wall of the pushing member. The expansion rod is located inside the second spring. The telescopic end of the expansion rod is fixedly connected to the bottom wall of the fixed mold member. The top end of the second spring is fixedly connected to the bottom wall of the fixed mold member. By providing the expansion rod and the second spring, the effect of extruding the die-casting part is improved.

[0015] In summary, the technical effects and advantages of the present utility model are as follows: For the die-casting mold that is easy to extrude and push the die-casting part, through the provision of a demolding structure, the liquid metal is injected through the upper mold to the position between the upper mold and the lower mold. Then, the motor is started to drive the pushing member to move, driving the expansion rod and the second spring to contract, improving the effect of extruding the die-casting part by the upper mold and the lower mold. When the upper mold and the lower mold are separated, the threaded rod is also started to drive the pushing member to push the die-casting part, effectively improving the demolding and die-casting effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 It is a schematic cross-sectional view of the connecting member structure of the present utility model;

[0018] Figure 3 It is a schematic diagram of the threaded rod and the limiting plate of the structure of the present utility model;

[0019] Figure 4 It is a schematic diagram of the expansion rod and the second spring structure of the present utility model.

[0020] In the figure:

[0021] 1. Upper mold;

[0022] 2. Lower mold;

[0023] 3. Demolding structure; 301. Connecting member; 302. Motor; 303. Threaded rod; 304. Circular plate; 305. Fixed plate; 306. Pushing member; 307. Fixed mold member; 308. Connecting block; 309. Balance plate; 310. First spring; 311. Rubber pad; 312. Limiting plate;

[0024] 4. Expansion rod; 5. Second spring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Reference Figures 1-4 A die-casting mold that is easy to extrude and push a die-casting part, including an upper mold 1, on which a lower mold 2 is slidably connected, liquid metal enters the position between the upper mold 1 and the lower mold 2 through the upper mold 1, and the die-casting part is formed by extrusion between the upper mold 1 and the lower mold 2. A demolding structure 3 is provided on the lower mold 2, and the demolding structure 3 includes a connector 301 installed on the side of the lower mold 2 close to the upper mold 1, and the connector 301 is located between the upper mold 1 and the lower mold 2, and is used for the installation of some structures.

[0027] A motor 302 is installed on the inner wall of the lower mold 2 away from the connecting piece 301, and a threaded rod 303 is installed on the output end of the motor 302. The outer wall of the threaded rod 303 is threadedly connected with a circular plate 304. The outer wall of the motor 302 is fixedly connected to the inner wall of the lower mold 2, and the output end of the motor 302 is rotatably connected to the inner wall of the connecting piece 301. When the motor 302 is started, the output end of the motor 302 drives the threaded rod 303 to rotate, and the threaded rod 303 drives the circular plate 304 to move.

[0028] A pushing member 306 is provided on the top of the circular plate 304. There are four pushing members 306, which are symmetrically and evenly distributed around the lower mold 2. The inner wall of the pushing member 306 is slidably connected with a connecting block 308. There are four connecting blocks 308, which are distributed around the fixed mold 307. The outer wall of the connecting block 308 is installed with the fixed mold 307. The side of the connecting block 308 away from the fixed mold 307 is fixedly connected to the inner wall of the lower mold 2.

[0029] The outer wall of the fixed mold 307 is slidably connected to the inner wall of the pushing member 306, and the outer wall of the fixed mold 307 is inserted into the inner wall of the upper mold 1. The side of the fixed mold 307 away from the pushing member 306 is in contact with the inner wall of the upper mold 1. When the die-casting is formed on the fixed mold 307, the pushing member 306 moves upward to drive the die-casting to separate from the surface of the fixed mold 307.

[0030] The top wall of the circular plate 304 is installed with a fixed plate 305. The pusher 306 is located above the fixed plate 305. The number of fixed plates 305 is distributed equidistantly according to the number of the fixed die parts 307. The outer wall of the fixed plate 305 is installed with a balance plate 309. The balance plate 309 is located below the pusher 306. A plurality of balance plates 309 are symmetrically and equidistantly distributed on each fixed plate 305 to increase the area of the fixed plate 305 and improve the effect of pushing the pusher 306.

[0031] The top wall of the balance plate 309 is installed with a first spring 310. The top wall of the first spring 310 is installed with a rubber pad 311. The top wall of the rubber pad 311 is fixedly connected to the bottom wall of the pusher 306. Not only is a first spring 310 and a rubber pad 311 installed on each balance plate 309, but also a plurality of first springs 310 and rubber pads 311 are equidistantly distributed on the top wall of each fixed plate 305. The threaded rod 303 drives the circular plate 304 to move upward. The circular plate 304 drives the fixed plate 305, the balance plate 309, the first spring 310, and the rubber pad 311 to move, and drives the pusher 306 to push the die-casting part on the fixed die part 307, so that the die-casting part effectively detaches from the fixed die part 307.

[0032] Refer to Figures 3-4 The top wall of the threaded rod 303 is installed with a limit plate 312. The bottom wall of the limit plate 312 is not in contact with the top wall of the circular plate 304. The provided limit plate 312 effectively prevents the circular plate 304 from pushing against the threaded rod 303.

[0033] The inner bottom wall of the pusher 306 is installed with a telescopic rod 4. The inner bottom wall of the pusher 306 is installed with a telescopic rod 4. The telescopic rod 4 is located inside the second spring 5. The telescopic end of the telescopic rod 4 is fixedly connected to the bottom wall of the fixed die part 307. The top end of the second spring 5 is fixedly connected to the bottom wall of the fixed die part 307. Three telescopic rods 4 and second springs 5 are equidistantly distributed on each pusher 306. When the rubber pad 311 drives the pusher 306 to move upward, the telescopic rod 4 and the second spring 5 are squeezed and contract inward, and drive the fixed die part 307 to push and squeeze the die-casting part.

[0034] Working principle:

[0035] After the upper die 1 and the lower die 2 are mutually extruded, the liquid metal is injected through the upper die 1 to the position between the upper die 1 and the lower die 2. Then, the motor 302 is started, and the output end of the motor 302 drives the threaded rod 303 to rotate. The threaded rod 303 drives the round plate 304, the fixing plate 305, the pushing member 306, the balance plate 309, the first spring 310, and the rubber pad 311 to move upward. At the same time, under the push of the pushing member 306, the telescopic rod 4 and the second spring 5 drive the telescopic rod 4 and the second spring 5 to contract, improving the extrusion effect of the upper die 1 and the lower die 2 on the die-casting part. After the upper die 1 and the lower die 2 are separated, the threaded rod 303 is also started to drive the pushing member 306 to push the die-casting part, effectively improving the demoulding and die-casting film effects.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A die-casting mold for easily extruding and pushing die-cast parts, including an upper mold (1), characterized in that, The lower die (2) is slidably connected to the upper die (1); A demolding structure (3) is arranged on the lower die (2); The demolding structure (3) includes a connecting member (301) installed on one side of the lower die (2) close to the upper die (1). A motor (302) is installed on the inner wall of the lower die (2) far from the connecting member (301). A threaded rod (303) is installed at the output end of the motor (302). A circular plate (304) is threadedly connected to the outer wall of the threaded rod (303). A pushing member (306) is arranged on the top of the circular plate (304). A connecting block (308) is slidably connected to the inner wall of the pushing member (306). A fixed die member (307) is installed on the outer wall of the connecting block (308). The outer wall of the fixed die member (307) is slidably connected to the inner wall of the pushing member (306). The outer wall of the fixed die member (307) is inserted into the inner wall of the upper die (1).

2. The die-casting mold for easily extruding and pushing die-castings according to claim 1, characterized in that, A fixing plate (305) is installed on the top wall of the circular plate (304). The pushing member (306) is located above the fixing plate (305).

3. A die-casting mold for easily extruding and pushing die-castings according to claim 2, characterized in that, A balancing plate (309) is installed on the outer wall of the fixing plate (305). The balancing plate (309) is located below the pushing member (306).

4. A die-casting mold for easily extruding and pushing die-castings according to claim 3, characterized in that, A first spring (310) is installed on the top wall of the balancing plate (309). A rubber pad (311) is installed on the top wall of the first spring (310). The top wall of the rubber pad (311) is fixedly connected to the bottom wall of the pushing member (306).

5. A die-casting mold for easily extruding and pushing die-cast parts according to claim 1, characterized in that, A limiting plate (312) is installed on the top wall of the threaded rod (303). The bottom wall of the limiting plate (312) is not in contact with the top wall of the circular plate (304).

6. The die-casting mold for easily extruding and pushing die-castings according to claim 1, characterized in that, A telescopic rod (4) is installed on the inner bottom wall of the pushing member (306). A telescopic rod (4) is installed on the inner bottom wall of the pushing member (306). The telescopic rod (4) is located inside the second spring (5). The telescopic end of the telescopic rod (4) is fixedly connected to the bottom wall of the fixed die member (307). The top end of the second spring (5) is fixedly connected to the bottom wall of the fixed die member (307).

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