Die-casting die with ejection mechanism

Abstract

The utility model belongs to the technical field of die-casting dies, and particularly relates to a die-casting die with an ejection mechanism, which comprises a mounting seat, a die-casting lower die is placed at the upper end of the mounting seat, a motor is fixedly mounted in the middle of the upper end of the mounting seat, and the tail end of an output shaft of the motor is fixedly connected with a threaded shaft. The outer side of a shaft body of the threaded shaft is connected with a linkage plate through threads. The mounting seat is mounted below the die-casting lower die, then the linkage plate driven by the motor and the threaded rod to ascend and descend is arranged in the middle of the upper end of the mounting seat, the linkage plate enables the push rod to ascend synchronously in the ascending process, and the rotating sleeve on the outer side of the push rod can ascend and descend under the cooperation of the lifting pin. The lower die-casting die can be lifted up and down and can rotate in the lifting process, so that a product formed in the lower die-casting die can be separated from the die and separated from the rotating sleeve at the same time, and demolding is more thorough.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting molds, in particular to a die-casting mold with an ejection mechanism. Background Art

[0002] A die casting mold is a tool used to make die casting products. Die casting is a process in which molten metal is injected into a mold and then solidified into shape by applying high pressure. A die casting mold usually consists of two parts: an upper mold and a lower mold. The shape of the cavity between the upper and lower molds corresponds to the shape of the final product. Moreover, in order to facilitate demoulding of the product, a general die-casting mold will be provided with an ejection mechanism. For example, the utility model patent with the announcement number CN215902702U discloses a die-casting mold with a fixed mold ejection mechanism, including a bottom plate, the upper surface of the bottom plate is fixedly connected to two support blocks, the upper surfaces of the two support blocks are commonly fixedly connected to a fixed mold body, the bottom surface of the fixed mold body is provided with a groove, the upper surface of the bottom plate is fixedly inlaid with two bearings, the inner wall of each bearing is fixedly connected to a threaded barrel, the inner top wall of the groove is provided with two through holes, and the inner wall of each threaded barrel is threadedly connected to a threaded rod; the die-casting mold has a reasonable design structure, it can indirectly drive the threaded barrel to rotate by the operation of the servo motor, and then use the cooperation of the provided clamping block and the slide groove to realize the up and down movement of the threaded rod, and the height of the threaded rod can be limited, which can prevent the threaded rod from rising too high, and can better eject the objects in the mold, and can improve the quality of demoulding.

[0003] However, when the ejection mechanism of the existing die-casting mold ejects the product from the mold, it contacts the product before the product is cooled and formed, causing the product to stick to it after forming, resulting in incomplete demoulding of the product. Therefore, improvement is needed. Utility Model Content

[0004] The utility model aims to provide a die-casting mold with an ejection mechanism, which solves the problem that the ejection mechanism of the die-casting mold is not demoulding thoroughly enough.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a die-casting mold with an ejection mechanism, comprising a mounting seat, a die-casting lower mold is placed on the upper end of the mounting seat, a motor is fixedly mounted in the middle of the upper end of the mounting seat, a threaded shaft is fixedly connected to the end of the output shaft of the motor, a linkage plate is threadedly connected to the outer side of the shaft body of the threaded shaft, a push rod is fixedly connected to the upper end of the linkage plate and located on both sides of the threaded shaft, a rotating sleeve is rotatably connected to the outside of the push rod, the rotating sleeve passes through the die-casting lower mold and is movably connected to the die-casting lower mold, a top plate is mounted on the top of the threaded shaft through a bearing, and the top plate is in contact with the die-casting lower mold, a push pin is fixedly connected to the side of the top plate, and the push pin is slidably connected to the rotating sleeve.

[0006] Preferably, a spiral groove is formed on the outer surface of the rotating sleeve, and the end of the ejector pin is located in the spiral groove. The spiral groove cooperates with the ejector pin to enable the rotating sleeve to rotate during the ascending process.

[0007] Preferably, a positioning block is fixedly connected to the top of the top plate, and the positioning block is clamped with the die-casting lower die. The positioning block has a positioning effect on the top plate.

[0008] Preferably, a guide rod is fixedly connected to the upper end of the mounting seat, and the guide rod penetrates the linkage plate and is slidably connected to the linkage plate. The setting of the guide rod has a guiding effect on the lifting and lowering of the linkage plate.

[0009] Preferably, the upper edge of the mounting seat is fixedly connected with a mounting block, and the mounting block contacts the die-casting lower die, the top of the mounting block is clamped with a clamping block, the clamping block is fixedly connected with the die-casting lower die, the interior of the mounting block is slidably connected with a locking pin, the locking pin is plugged with the clamping block, the outer side of the pin body of the locking pin is fixedly connected with a limiting ring, and the limiting ring is slidably connected to the interior of the mounting block, the side of the mounting block away from the die-casting lower die is hinged with a pressure rod, and the pressure rod is slidably connected with the locking pin. By pressing the pressure rod, the locking pin moves laterally, thereby controlling the clutch of the locking pin and the clamping block.

[0010] Preferably, a sleeve is fixedly connected to the outside of the mounting block, a sliding pin is slidably connected to the inside of the sleeve, the sliding pin contacts the pressure rod, a spring is arranged inside the sleeve, one end of the spring is fixedly connected to the sliding pin, and the other end of the spring is fixedly connected to the inner surface of the sleeve. The sliding pin supports the pressure rod through the elastic force of the spring.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model installs a mounting seat under the die-casting lower die, and then arranges a linkage plate driven by a motor and a threaded rod to lift and lower the mounting seat in the middle of the upper end. The linkage plate causes the push rod to rise synchronously during the rising process, and the rotating sleeve on the outer side of the push rod can not only be lifted and lowered but also rotated during the lifting process with the cooperation of the ejector pin, so that the product formed in the die-casting lower die can be separated from the die and the rotating sleeve at the same time, and the demoulding is more thorough.

[0013] 2. The utility model arranges two mounting blocks on the upper edge of the mounting seat, and the clamping blocks are inserted into the mounting blocks, and the clamping blocks are fixed to the outer wall of the die-casting lower mold. Then, an elastically supported pressure rod is arranged on the side of the mounting block. When the pressure rod is pressed, the pressure rod can make the locking pin move laterally and separate it from the clamping block. In this way, the mounting seat and the components on the mounting seat can be installed on the die-casting lower mold by pressing the pressure rod, which is simple and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 A front cross-sectional view of

[0016] Figure 3 For the utility model Figure 2 A magnified view of the structure of part A;

[0017] Figure 4 For the utility model Figure 1 A three-dimensional diagram of the local structure;

[0018] Figure 5 It is a stereoscopic diagram of the push rod structure of the utility model.

[0019] In the figure: 1. mounting seat; 2. die-casting lower die; 3. motor; 4. threaded shaft; 5. linkage plate; 6. push rod; 7. rotating sleeve; 8. ejector plate; 9. ejector pin; 10. positioning block; 11. guide rod; 12. mounting block; 13. clamping block; 14. locking pin; 15. limiting ring; 16. pressure rod; 17. sleeve; 18. sliding pin; 19. spring. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1 , Figure 2 , Figure 4 , Figure 5A die-casting mold with an ejection mechanism includes a mounting seat 1, a die-casting lower mold 2 is placed on the upper end of the mounting seat 1, a motor 3 is fixedly installed in the middle of the upper end of the mounting seat 1, a threaded shaft 4 is fixedly connected to the end of the output shaft of the motor 3, a linkage plate 5 is connected to the outer side of the shaft body of the threaded shaft 4 through a thread, a push rod 6 is fixedly connected to the upper end of the linkage plate 5 and located on both sides of the threaded shaft 4, a rotating sleeve 7 is rotatably connected to the outside of the push rod 6, and the rotating sleeve 7 passes through the die-casting lower mold 2 and is movably connected to the die-casting lower mold 2.

[0022] See also Figure 2 , Figure 4 , a top plate 8 is installed on the top of the threaded shaft 4 through a bearing, and the top plate 8 contacts the die-casting lower mold 2, and a top pin 9 is fixedly connected to the side of the top plate 8, and the top pin 9 is slidably connected to the rotating sleeve 7. A spiral groove is provided on the outer surface of the rotating sleeve 7, and the end of the top pin 9 is located in the spiral groove. Through the setting of the spiral groove, in cooperation with the top pin 9, the rotating sleeve 7 can rotate during the rising process. A positioning block 10 is fixedly connected to the top of the top plate 8, and the positioning block 10 is clamped with the die-casting lower mold 2. The setting of the positioning block 10 has a positioning effect on the top plate 8. A guide rod 11 is fixedly connected to the upper end of the mounting seat 1, and the guide rod 11 passes through the linkage plate 5 and is slidably connected to the linkage plate 5. Through the setting of the guide rod 11, it has a guiding effect on the lifting and lowering of the linkage plate 5.

[0023] See also Figure 1 , Figure 2 , Figure 3 The upper edge of the mounting seat 1 is fixedly connected with a mounting block 12, and the mounting block 12 contacts the die-casting lower die 2. The top of the mounting block 12 is clamped with a clamping block 13, and the clamping block 13 is fixedly connected with the die-casting lower die 2. The inside of the mounting block 12 is slidably connected with a locking pin 14, and the locking pin 14 is plugged with the clamping block 13. The outer side of the pin body of the locking pin 14 is fixedly connected with a limiting ring 15, and the limiting ring 15 is slidably connected to the inside of the mounting block 12. The side of the mounting block 12 away from the die-casting lower die 2 is hinged with a pressure rod 16, and the pressure rod 16 is slidably connected with the locking pin 14. By pressing the pressure rod 16, the locking pin 14 moves horizontally, thereby controlling the clutch of the locking pin 14 and the clamping block 13. The outer side of the mounting block 12 is fixedly connected with a sleeve 17, and the interior of the sleeve 17 is slidably connected with a sliding pin 18, which contacts the pressure rod 16. A spring 19 is provided inside the sleeve 17, and one end of the spring 19 is fixedly connected with the sliding pin 18, and the other end of the spring 19 is fixedly connected to the inner surface of the sleeve 17. The sliding pin 18 supports the pressure rod 16 through the elastic force of the spring 19.

[0024] The specific implementation process of the utility model is as follows: when in use, after the product in the die-casting lower mold 2 is die-casted, the motor 3 is started, the motor 3 drives the threaded shaft 4 to rotate, and the linkage plate 5 generates an upward displacement through the relative threaded movement with the threaded shaft 4, and then the linkage plate 5 drives the push rod 6 to move upward, and the push rod 6 drives the rotating sleeve 7 upward at the same time, and the rotating sleeve 7 pushes the product out of the die-casting lower mold 2, and the rotating sleeve 7 cooperates with the ejector pin 9 during the rising process, and can rotate, so that the rotating sleeve 7 is separated from the product, which is more convenient for demoulding of the product;

[0025] If the die-casting lower mold 2 needs to be removed for maintenance at a later time, it is only necessary to press the pressure rod 16, and the pressure rod 16 will pull the locking pin 14 horizontally and separate the locking pin 14 from the block 13. Then the mounting seat 1 and the components on the mounting seat 1 can be separated from the die-casting lower mold 2. The operation is simple and convenient.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die-casting mold with an ejection mechanism, comprising a mounting seat (1), characterized in that: A die-casting lower die (2) is placed at the upper end of the mounting seat (1), and a motor (3) is fixedly mounted in the middle of the upper end of the mounting seat (1). The output shaft end of the motor (3) is fixedly connected to a threaded shaft (4), and the outer side of the shaft body of the threaded shaft (4) is connected to a linkage plate (5) through a thread, and the upper end of the linkage plate (5) and both sides of the threaded shaft (4) are fixedly connected to push rods (6), and the outer side of the push rod (6) is rotatably connected to a rotating sleeve (7), and the rotating sleeve (7) passes through the die-casting lower die (2) and is movably connected to the die-casting lower die (2), and the top of the threaded shaft (4) is installed with a top plate (8) through a bearing, and the top plate (8) contacts the die-casting lower die (2), and the side of the top plate (8) is fixedly connected to a push pin (9), and the push pin (9) is slidably connected to the rotating sleeve (7).

2. A die-casting mold with an ejection mechanism according to claim 1, characterized in that: The outer surface of the rotating sleeve (7) is provided with a spiral groove, and the end of the ejector pin (9) is located in the spiral groove.

3. The die-casting mold with an ejection mechanism according to claim 1, characterized in that: A positioning block (10) is fixedly connected to the top of the top plate (8), and the positioning block (10) is clamped with the die-casting lower die (2).

4. The die-casting mold with an ejection mechanism according to claim 1, characterized in that: The upper end of the mounting seat (1) is fixedly connected to a guide rod (11), and the guide rod (11) passes through the linkage plate (5) and is slidably connected to the linkage plate (5).

5. The die-casting mold with an ejection mechanism according to claim 1, characterized in that: The upper edge of the mounting seat (1) is fixedly connected with a mounting block (12), and the mounting block (12) contacts the die-casting lower mold (2); the top of the mounting block (12) is clamped with a clamping block (13), and the clamping block (13) is fixedly connected to the die-casting lower mold (2); the interior of the mounting block (12) is slidably connected with a locking pin (14), and the locking pin (14) is plugged into the clamping block (13); the outer side of the pin body of the locking pin (14) is fixedly connected with a limiting ring (15), and the limiting ring (15) is slidably connected to the interior of the mounting block (12); a pressure rod (16) is hinged on the side of the mounting block (12) away from the die-casting lower mold (2), and the pressure rod (16) is slidably connected to the locking pin (14).

6. The die-casting mold with an ejection mechanism according to claim 5, characterized in that: The outer side of the mounting block (12) is fixedly connected with a sleeve (17), the interior of the sleeve (17) is slidably connected with a sliding pin (18), the sliding pin (18) abuts against the pressure rod (16), a spring (19) is arranged on the inner side of the sleeve (17), one end of the spring (19) is fixedly connected with the sliding pin (18), and the other end of the spring (19) is fixedly connected to the inner surface of the sleeve (17).

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