Quick demolding die-casting die for die casting

Abstract

The utility model relates to the technical field of die casting, and discloses a quick demoulding die-casting die for die castings, which comprises a lower die and an upper die, the upper die is provided with a demoulding device, the demoulding device comprises a second demoulding part, and the second demoulding part comprises a second moving plate and a second pushing block. According to the rapid demolding die-casting die for the die casting, by arranging a first pushing block, a first spring, a first moving plate, a first mounting groove, a third spring, a telescopic block, a pulling rod, an extrusion rod, a second pushing block, a second moving plate, a second spring and a second mounting groove, upward movement is controlled during demolding, and the die casting is rapidly demolded through the elastic force of the first spring and the second spring; the top end of the first pushing block extends out of the first through hole, the bottom end of the second pushing block extends out of the second through hole, meanwhile, the pulling rod pulls the telescopic block upwards to move upwards, direct pressure transmission is achieved without depending on the elastic force of a first spring, and the first pushing block jacks up a workpiece clamped in the lower die.

Description

Technical Field

[0001] This utility model relates to the field of die casting technology, specifically to a quick-release die casting mold for die casting parts. Background Technology

[0002] Die casting molds are tools used to cast metal parts.

[0003] Chinese patent disclosure CN217858729U discloses a die-casting mold for easy demolding, comprising an upper die-casting mold, a lower die-casting mold, and an ejection mechanism. The upper die-casting mold is positioned directly above the lower die-casting mold. The lower die-casting mold has a forming cavity at its top, and slots are formed at the four corners of the bottom of the forming cavity. Each of the four slots has a receiving groove at its bottom. Four ejection mechanisms are respectively disposed within the four receiving grooves. Each ejection mechanism consists of a telescopic rod, a compression spring, and a top plate. The bottom end of the telescopic rod is fixedly connected to the bottom of the receiving groove. This invention, by setting the ejection mechanism within the forming cavity of the lower die-casting mold, allows the ejection mechanism to be pressed into the receiving groove during mold closing, avoiding any impact on the forming of the product blank. After the upper and lower molds separate, the ejection mechanism returns to its extended state and lifts the finished product upwards, achieving automatic ejection of the finished product. This facilitates the pickup of the finished product by workers and improves production efficiency.

[0004] However, it still has the following drawbacks: when the upper mold moves upward, the device uses the elastic force of the compression spring to push the workpiece in the lower mold upward by the top plate. However, when the extrusion pressure between the workpiece and the mold is large, the workpiece is difficult to eject relying solely on the elastic force of the spring. To address this issue, we propose a quick-release die casting mold for die casting parts. Utility Model Content

[0005] The purpose of this invention is to provide a quick-release die casting mold for die casting parts, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-release die casting mold for die casting parts, comprising a lower mold and an upper mold, wherein the upper mold is provided with a demolding device, and the demolding device includes a second demolding part;

[0007] The second demolding part includes a second movable plate and a second pushing block. A second mounting groove is provided on the outer surface of the upper mold. The outer surface of the second movable plate is slidably connected to the inner wall of the second mounting groove. The top surface of the second pushing block is fixedly connected to the bottom surface of the second movable plate.

[0008] The lower mold is provided with a first demolding part;

[0009] The first demolding part includes a first pushing block and a first moving plate. A first mounting groove is provided on the outer surface of the lower mold. The outer surface of the first moving plate is slidably connected to the inner wall of the first mounting groove. The top surface of the first moving plate is fixedly connected to the bottom surface of the first pushing block.

[0010] A further improvement is that the second demolding part also includes a second extrusion column and a second spring. The bottom end of the second spring is fixedly connected to the top surface of the second moving plate, and the top end of the second spring is fixedly connected to the inner wall of the second mounting groove. The bottom surface of the upper mold is provided with a second through hole. The outer surface of the second pushing block extends into the second through hole and is slidably connected to the inner wall of the second through hole. The bottom surface of the second pushing block is flush with the bottom surface of the upper mold. By setting the second spring, the second moving plate, and the second pushing block, when demolding, the second spring extends, causing the second pushing block to push the workpiece stuck on the upper mold down.

[0011] A further improvement is that the top surface of the second extrusion column is fixedly connected to the bottom surface of the second moving plate, and the outer surface of the bottom end of the second extrusion column slides through the inner wall of the upper mold and presses against the top surface of the lower mold. By setting the second extrusion column, when the mold is closed, the lower mold pushes the second extrusion column upward, so that the second pushing block moves into the interior of the upper mold, which facilitates casting.

[0012] A further improvement is that the first demolding part further includes a first spring, a first extrusion column, a third spring, a telescopic block, a pulling rod, and an extrusion rod. The bottom end of the first spring is fixedly connected to the inner wall of the first mounting groove, the top end of the first spring is fixedly connected to the bottom surface of the first moving plate, and the bottom surface of the first pushing block is fixedly connected to the top surface of the first moving plate. The inner wall of the lower mold is provided with a first through hole, and the outer surface of the first pushing block extends into the first through hole and slides in connection with the inner wall of the first through hole. By setting the first spring, the first moving plate, and the first pushing block, when demolding, the first spring extends, causing the first pushing block to lift the workpiece inside the lower mold.

[0013] A further improvement is that the bottom surface of the first extrusion column is fixedly connected to the top surface of the first moving plate, and the outer surface of the first extrusion column slides through the inner wall of the lower mold and presses against the bottom surface of the upper mold. By setting the first extrusion column, when the mold is closed, the upper mold pushes the first extrusion column downward, so that the first pushing block moves into the lower mold, which facilitates casting.

[0014] A further improvement is that the outer surface of the top of the pull rod slides through the bottom surface of the upper mold and extends to the inner side of the upper mold. The top surface of the pull rod is fixedly connected to the bottom surface of the second moving plate. A groove is provided on the left end face of the first moving plate. The outer surface of the telescopic block extends into the interior of the first moving plate and slides in connection with the inner wall of the first moving plate. By setting the pull rod and the telescopic block, when demolding, the pull rod pulls the telescopic block, the first moving plate and the first pushing block upward, realizing direct pressure transmission, so that the first pushing block pushes the workpiece stuck inside the lower mold upward.

[0015] A further improvement is that the right end of the third spring is fixedly connected to the inner wall of the first moving plate, the left end of the third spring is fixedly connected to the right end face of the telescopic block, and the outer surface of the extrusion rod is fixedly connected to the inner wall of the first mounting groove. By setting the third spring and the extrusion rod, during the upward movement of the first moving rod, the extrusion rod pushes the telescopic block to the right, so that the pulling rod is separated from the telescopic block, which facilitates the separation of the upper mold and the lower mold.

[0016] A further improvement is that water guide holes are provided on the outer surface of the upper mold, and a water pipe is fixedly connected to the right end face of the upper mold. By introducing cold water into the water pipe and the interior of the upper mold, it is convenient to cool down the upper mold and facilitate demolding.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The die-casting part uses a quick-release die-casting mold. By setting a first pushing block, a first spring, a first moving plate, a first mounting groove, a third spring, a telescopic block, a pull rod, a pressing rod, a second pushing block, a second moving plate, a second spring, and a second mounting groove, during demolding, the mold controls the upward movement. Utilizing the elastic force of the first and second springs, the top of the first pushing block extends out of the first through hole, and the bottom of the second pushing block extends out of the second through hole. At the same time, the pull rod pulls the telescopic block upward, achieving direct pressure transmission without relying on the elastic force of the first spring, so that the first pushing block pushes the workpiece stuck inside the lower mold upward.

[0019] 2. By setting the first extrusion column and the second extrusion column, when the upper mold and the lower mold are closed, the upper mold presses down on the first extrusion column, causing the first push block to retract into the lower mold, and the lower mold presses up on the second extrusion column, causing the second push block to retract into the upper mold, which facilitates casting.

[0020] 3. By installing water pipes, the upper mold is cooled, making it easier for the workpiece stuck on the upper mold to separate from it. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 This is a front sectional view of the three-dimensional structure of the demolding device of this utility model;

[0023] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0024] Figure 4 This is a left-side sectional view of the three-dimensional structure of the demolding device of this utility model;

[0025] Figure 5 This is a top view of the three-dimensional structure of the demolding device of this utility model;

[0026] Figure 6 This is a front sectional view of the overall structure of this utility model.

[0027] In the diagram: 1 Lower mold, 2 Upper mold, 3 Demolding device, 4 Water pipe, 31 First demolding part, 32 Second demolding part, 311 First pushing block, 312 First spring, 313 First moving plate, 314 First extrusion column, 315 First mounting groove, 316 Third spring, 317 Telescopic block, 318 Pulling rod, 319 Extrusion rod, 321 Second extrusion column, 322 Second pushing block, 323 Second moving plate, 324 Second spring, 325 Second mounting groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-6 This utility model provides a technical solution: a quick demolding die casting mold for die casting parts, including a lower mold 1 and an upper mold 2. The outer surface of the upper mold 2 is provided with water guiding holes, and a water pipe 4 is fixedly connected to the right end face of the upper mold 2. By setting the water pipe 4, the upper mold 2 is cooled, which facilitates the separation of the workpiece stuck on the upper mold 2 from the upper mold 2.

[0030] The upper mold 2 is provided with a demolding device 3, which includes a second demolding part 32;

[0031] The second demolding part 32 includes a second moving plate 323 and a second pushing block 322. A second mounting groove 325 is provided on the outer surface of the upper mold 2. The outer surface of the second moving plate 323 is slidably connected to the inner wall of the second mounting groove 325. The top surface of the second pushing block 322 is fixedly connected to the bottom surface of the second moving plate 323. The second demolding part 32 also includes a second extrusion column 321 and a second spring 324.

[0032] The top surface of the second extrusion column 321 is fixedly connected to the bottom surface of the second moving plate 323. The outer surface of the bottom end of the second extrusion column 321 slides through the inner wall of the upper mold 2 and presses against the top surface of the lower mold 1. The bottom surface of the upper mold 2 is provided with a second through hole. The outer surface of the second push block 322 extends into the second through hole and slides with the inner wall of the second through hole. The bottom surface of the second push block 322 is flush with the bottom surface of the upper mold 2.

[0033] The bottom end of the second spring 324 is fixedly connected to the top surface of the second movable plate 323, and the top end of the second spring 324 is fixedly connected to the inner wall of the second mounting groove 325.

[0034] The lower mold 1 is provided with a first demolding part 31;

[0035] The first demolding part 31 includes a first pushing block 311 and a first moving plate 313. A first mounting groove 315 is provided on the outer surface of the lower mold 1. The outer surface of the first moving plate 313 is slidably connected to the inner wall of the first mounting groove 315. The top surface of the first moving plate 313 is fixedly connected to the bottom surface of the first pushing block 311. The first demolding part 31 also includes a first spring 312, a first extrusion column 314, a third spring 316, a telescopic block 317, a pulling rod 318, and an extrusion rod 319.

[0036] The bottom surface of the first extrusion column 314 is fixedly connected to the top surface of the first moving plate 313. The outer surface of the first extrusion column 314 slides through the inner wall of the lower mold 1 and presses against the bottom surface of the upper mold 2. The bottom surface of the first pushing block 311 is fixedly connected to the top surface of the first moving plate 313. The inner wall of the lower mold 1 is provided with a first through hole. The outer surface of the first pushing block 311 extends into the first through hole and slides against the inner wall of the first through hole. By setting the first extrusion column 314 and the second extrusion column 321, when the upper mold 2 and the lower mold 1 are closed, the upper mold 2 presses down on the first extrusion column 314, causing the first pushing block 311 to retract into the lower mold 1. The lower mold 1 presses up on the second extrusion column 321, causing the second pushing block to retract into the upper mold 2, which facilitates casting.

[0037] The bottom end of the first spring 312 is fixedly connected to the inner wall of the first mounting groove 315, and the top end of the first spring 312 is fixedly connected to the bottom surface of the first movable plate 313.

[0038] The outer surface of the top end of the pull rod 318 slides through the bottom surface of the upper mold 2 and extends to the inner side of the upper mold 2. The top surface of the pull rod 318 is fixedly connected to the bottom surface of the second moving plate 323. A sliding groove is opened on the left end face of the first moving plate 313. The outer surface of the telescopic block 317 extends into the interior of the first moving plate 313 and slides in connection with the inner wall of the first moving plate 313.

[0039] The right end of the third spring 316 is fixedly connected to the inner wall of the first moving plate 313, and the left end of the third spring 316 is fixedly connected to the right end face of the telescopic block 317. The outer surface of the extrusion rod 319 is fixedly connected to the inner wall of the first mounting groove 315. By setting the first pushing block 311, the first spring 312, the first moving plate 313, the first mounting groove 315, the third spring 316, the telescopic block 317, the pulling rod 318, the extrusion rod 319, the second pushing block 322, the second moving plate 323, the second spring 324, and the second mounting groove 325, when demolding, the control 2 moves upward. Using the elastic force of the first spring 312 and the second spring 324, the top end of the first pushing block 311 extends out of the first through hole, and the bottom end of the second pushing block 322 extends out of the second through hole. At the same time, the pulling rod 318 pulls the telescopic block 317 upward. Without relying on the elastic force of the first spring 312, the pressure is directly transmitted, so that the first pushing block 311 pushes the workpiece stuck inside the lower mold 1 upward.

[0040] In use, cold water is introduced into the upper mold 2 through the water pipe 4, controlling the upper mold 2 to move upward, so that the upper mold 2 no longer squeezes the first extrusion column 314, and the lower mold 1 no longer squeezes the second extrusion column 321, causing the first spring 312 and the second spring 324 to extend. The second spring 324 pushes the second moving plate 323 to move downward, and the second moving plate 323 drives the second pushing block 322 to move, so that the bottom end of the second pushing block 322 extends out of the upper mold 2, and the first pushing block 311 extends upward into the lower mold 1. At the same time, the upper mold 2 drives the pulling rod 318 to pull the telescopic block 317 to move upward, and the telescopic block 317 drives the first moving plate 313 and the first pushing block 311 to move upward, pushing the workpiece stuck inside the lower mold 1 upward. Then, the extrusion rod 319 squeezes and pushes the telescopic block 317 to move to the right, so that the bottom end of the telescopic block 317 is no longer stuck to the outer surface of the pulling rod 318, so that the pulling rod 318 separates from the telescopic block 317, and the pulling rod 318 moves upward out of the lower mold 1.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-release die casting mold for die casting parts, comprising a lower mold (1) and an upper mold (2), characterized in that: The upper mold (2) is provided with a demolding device (3), which includes a second demolding part (32). The second demolding part (32) includes a second moving plate (323) and a second pushing block (322). The outer surface of the upper mold (2) is provided with a second mounting groove (325). The outer surface of the second moving plate (323) is slidably connected to the inner wall of the second mounting groove (325). The top surface of the second pushing block (322) is fixedly connected to the bottom surface of the second moving plate (323). The lower mold (1) is provided with a first demolding part (31); The first demolding part (31) includes a first pushing block (311) and a first moving plate (313). The outer surface of the lower mold (1) is provided with a first mounting groove (315). The outer surface of the first moving plate (313) is slidably connected to the inner wall of the first mounting groove (315). The top surface of the first moving plate (313) is fixedly connected to the bottom surface of the first pushing block (311).

2. The quick-release die-casting mold for die-casting parts according to claim 1, characterized in that: The second demolding part (32) also includes a second extrusion column (321) and a second spring (324). The bottom end of the second spring (324) is fixedly connected to the top surface of the second moving plate (323), and the top end of the second spring (324) is fixedly connected to the inner wall of the second mounting groove (325). The bottom surface of the upper mold (2) is provided with a second through hole. The outer surface of the second pushing block (322) extends into the second through hole and slides in connection with the inner wall of the second through hole. The bottom surface of the second pushing block (322) is flush with the bottom surface of the upper mold (2).

3. The quick-release die-casting mold for die-casting parts according to claim 2, characterized in that: The top surface of the second extrusion column (321) is fixedly connected to the bottom surface of the second moving plate (323), and the outer surface of the bottom end of the second extrusion column (321) slides through the inner wall of the upper mold (2) and makes extrusion contact with the top surface of the lower mold (1).

4. The quick-release die-casting mold for die-casting parts according to claim 1, characterized in that: The first demolding part (31) further includes a first spring (312), a first extrusion column (314), a third spring (316), a telescopic block (317), a pulling rod (318), and an extrusion rod (319). The bottom end of the first spring (312) is fixedly connected to the inner wall of the first mounting groove (315), the top end of the first spring (312) is fixedly connected to the bottom surface of the first moving plate (313), the bottom surface of the first pushing block (311) is fixedly connected to the top surface of the first moving plate (313), and the inner wall of the lower mold (1) is provided with a first through hole. The outer surface of the first pushing block (311) extends into the first through hole and slides in connection with the inner wall of the first through hole.

5. A quick-release die-casting mold for die-casting parts according to claim 4, characterized in that: The bottom surface of the first extrusion column (314) is fixedly connected to the top surface of the first moving plate (313), and the outer surface of the first extrusion column (314) slides through the inner wall of the lower mold (1) and makes extrusion contact with the bottom surface of the upper mold (2).

6. A quick-release die-casting mold for die-casting parts according to claim 4, characterized in that: The outer surface of the top end of the pull rod (318) slides through the bottom surface of the upper mold (2) and extends to the inner side of the upper mold (2). The top surface of the pull rod (318) is fixedly connected to the bottom surface of the second moving plate (323). A sliding groove is provided on the left end face of the first moving plate (313). The outer surface of the telescopic block (317) extends into the interior of the first moving plate (313) and slides in connection with the inner wall of the first moving plate (313).

7. A quick-release die-casting mold for die-casting parts according to claim 4, characterized in that: The right end of the third spring (316) is fixedly connected to the inner wall of the first moving plate (313), the left end of the third spring (316) is fixedly connected to the right end face of the telescopic block (317), and the outer surface of the extrusion rod (319) is fixedly connected to the inner wall of the first mounting groove (315).

8. A quick-release die-casting mold for die-casting parts according to claim 1, characterized in that: The upper mold (2) has water guide holes on its outer surface, and a water pipe (4) is fixedly connected to the right end face of the upper mold (2).

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