A mold with a movable mold core pulling mechanism

Abstract

The application discloses a mold with a movable mold core-pulling mechanism, which comprises a lower mold frame, an upper mold frame arranged above the lower mold frame, a gas cylinder arranged at the middle top of the upper mold frame, a fixed mold arranged at the top of the lower mold frame, a movable mold arranged below the upper mold frame and corresponding to the fixed mold and driven to ascend and descend by the gas cylinder, and a guide column arranged at the top of the movable mold and movably connected with the upper mold frame through a guide sleeve; the mold further comprises a core-pulling mechanism, which comprises a first accommodating groove arranged at the top of the inner cavity of the movable mold, and the first accommodating groove movably arranged with a first ejection plate used for pushing out products. The mold with the movable mold core-pulling mechanism can push down and press the products in the movable mold to pull the cores in the process of product forming, ascending and resetting through the mutual cooperation of the first ejection plate, the first vertical plate, the second vertical plate, the first inclined block, the locking socket, the fixed plate, the first spring, the vertical column, the first limiting cap and the locking mechanism, so that the products are conveniently taken down, the structure is simple and compact, and the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of molds, and in particular to a mold with a moving mold core-pulling mechanism. Background Technology

[0002] Injection molding is a processing method used for mass production of certain complex-shaped parts. The specific principle is as follows: heated and molten plastic raw materials are pushed into the mold cavity of a plastic mold by the screw of an injection molding machine. After cooling and solidification, a plastic molded product is obtained. Then, the mold is demolded and the plastic part is taken out. The plastic mold consists of two parts: a moving mold and a fixed mold.

[0003] In existing technologies, the removal of molded products generally relies on the ejection mechanism on the fixed mold. However, during actual production, the product may adhere to the inner wall of the moving mold during injection molding, which can lead to the moving mold carrying the product away and making it difficult to remove the product from the moving mold. Although some moving molds in existing technologies are equipped with core-pulling mechanisms, these mechanisms are generally separate from the ejection mechanism on the fixed mold and require separate control, which affects efficiency and has poor practicality.

[0004] Therefore, it is necessary to propose a mold with a moving mold core-pulling mechanism to solve the above problems. Summary of the Invention

[0005] The main objective of this invention is to provide a mold with a moving mold core-pulling mechanism, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A mold with a moving mold core-pulling mechanism includes a lower mold frame, an upper mold frame disposed above the lower mold frame, a cylinder disposed at the top center of the upper mold frame, a fixed mold disposed at the top of the lower mold frame, a moving mold disposed below the upper mold frame corresponding to the fixed mold and driven to rise and fall by the cylinder, and a guide post disposed at the top of the moving mold and movably connected to the upper mold frame through a guide sleeve.

[0008] It also includes a core-pulling mechanism, which includes a first receiving groove disposed at the top of the moving mold cavity. The first receiving groove is movably equipped with a first ejector plate for pushing out the product. A first through hole is disposed at the top of the upper mold frame near the cylinder. A first vertical plate corresponding to the first ejector plate is movably connected to the first through hole, and the lower end of the first vertical plate extends into the cavity of the first receiving groove and is fixedly connected to the top of the first ejector plate. A second through hole is disposed on the side of the first through hole away from the cylinder, and a second vertical plate corresponding to the second through hole is fixedly connected to the top of the moving mold. The top of the second upright plate is fixedly connected to a first inclined block. The upper end of the first upright plate extends to the top of the upper mold frame and is fixedly connected to a fixing plate. The two ends of the fixing plate are symmetrically and movably connected to columns. The bottom of the columns is fixedly connected to the top of the upper mold frame. The top of the columns is fixedly connected to a first limiting cap. The part of the column located between the fixing plate and the first limiting cap is fitted with a first spring. A locking socket is provided on the upper end of the first upright plate away from the cylinder. A locking mechanism for locking the locking socket is provided on the side of the second through hole away from the first through hole.

[0009] Preferably, the first receiving groove is symmetrically arranged at both ends of the top of the moving mold cavity; the first upright plate is located on both sides of the cylinder and corresponds one-to-one with the first ejector plate; the second upright plate is located on the side of the two first upright plates away from the cylinder.

[0010] Preferably, the locking mechanism includes a fixing block fixedly connected to the top of the upper mold frame and corresponding to the second through hole. The fixing block has an opening facing the cylinder, and a third spring is provided inside the opening. A locking plug corresponding to and adapted to the locking socket is movably connected to the end of the opening away from the third spring. A through groove corresponding to the second through hole is opened on the locking plug. A second inclined block corresponding to and adapted to the first inclined block is fixedly connected to the side of the through groove near the fixing block. The second inclined block and the inclined surface of the first inclined block are engaged. An opening corresponding to and adapted to the second inclined block is provided at the top end of the fixing block.

[0011] Preferably, in the mold closing state of the fixed mold and the moving mold, the first ejector plate is located inside the first receiving groove, and at this time, one end of the locking block is inserted into the locking socket, and at this time, the first inclined block is located below the locking block.

[0012] Preferably, the end of the fixed plate away from the first upright plate corresponds to the second through hole, so that when the moving mold moves upward, it drives the second upright plate and the first inclined block to move upward, and then the second upright plate drives the first inclined block to pass through the second through hole and through groove and abut against the bottom of the fixed plate.

[0013] Preferably, it further includes a demolding mechanism linked to the core-pulling mechanism. The demolding mechanism includes a second receiving groove disposed at both ends of the bottom of the fixed mold cavity. A second ejector plate adapted to the second receiving groove is movably disposed on the inner side of the second receiving groove. A lifting groove is disposed at the bottom of the lower mold frame. A lifting plate is movably connected to the inner side of the lifting groove. Lifting columns are symmetrically fixedly connected to the four corners of the top of the lifting plate. The upper end of the lifting column extends to the top of the lower mold frame and is fixedly connected to a second limiting cap. A second spring is sleeved on the part of the lifting column located in the inner cavity of the lifting groove. Push columns corresponding to the second ejector plate are symmetrically fixedly connected to both ends of the top of the lifting plate. Driving blocks corresponding to the lifting columns are fixedly connected to both sides of the moving mold.

[0014] Preferably, the upper end of the pusher extends into the inner cavity of the second receiving groove and is fixedly connected to the bottom of the second ejector plate, so that the second ejector plate can be pushed upward by the pusher when the lifting plate rises.

[0015] Preferably, the upper end of the lifting column extends above the driving block, and the moving mold is movablely engaged with the driving block.

[0016] Preferably, the driving block contacts and engages with the second limiting cap, so that when the moving mold rises to a certain extent, the lifting plate can be driven to rise through the engagement of the driving block and the second limiting cap.

[0017] Preferably, the moving mold is provided with an injection port for injection molding. Beneficial effects

[0018] Compared with the prior art, the present invention provides a mold with a moving mold core-pulling mechanism, which has the following beneficial effects:

[0019] 1. This mold with a moving mold core-pulling mechanism, through the cooperation of a first ejector plate, a first upright plate, a second upright plate, a first inclined block, a locking socket, a fixed plate, a first spring, a column, a first limit cap, and a locking mechanism, can push the product in the moving mold downwards to pull the core during the product forming and resetting process. When the moving mold starts to rise, the first ejector plate remains stationary, which facilitates the separation of the product from the inner cavity of the moving mold. After the product is pushed away, the first ejector plate can rise with the moving mold, increasing the distance between the first ejector plate and the fixed mold, which facilitates the subsequent removal of the product. The structure is simple and compact, improving work efficiency.

[0020] 2. The mold with the moving mold core-pulling mechanism, through the cooperation of the lifting column, the second limit cap, the driving block, the second ejector plate, the lifting plate, the second spring, and the push column, can easily push the product in the fixed mold upward after the moving mold rises to a certain height, thus facilitating the final removal of the product. The linkage setting with the rising of the moving mold is simple and compact, which increases practicality and improves efficiency. Attached Figure Description

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

[0022] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0023] Figure 3 This is a schematic diagram of the overall structure of the upper mold frame and the moving mold of the present invention;

[0024] Figure 4 This is a structural schematic diagram of the cylinder, moving mold, and upper mold frame of the present invention in their disassembled state;

[0025] Figure 5 This is a schematic diagram of the structure of the first ejector plate and the moving mold in the separated state of the present invention;

[0026] Figure 6 This is a structural schematic diagram of the second upright plate, the first upright plate, and the fixing block of the present invention;

[0027] Figure 7 This is the present invention. Figure 6 Enlarged view of point A in the middle;

[0028] Figure 8 This is a schematic diagram of the structure of the fixing block of the present invention;

[0029] Figure 9 This is a schematic diagram of the upper mold frame of the present invention;

[0030] Figure 10 This is a schematic diagram of the lower mold frame of the present invention;

[0031] Figure 11 This is a schematic diagram of the demolding mechanism and the lower mold frame of the present invention in a disassembled state;

[0032] Figure 12 This is the present invention. Figure 11 A structural diagram from another perspective based on the above.

[0033] In the diagram: 1. Lower mold frame; 2. Upper mold frame; 3. Fixed mold; 4. Moving mold; 5. Cylinder; 6. Guide pillar; 7. Lifting pillar; 8. Lifting plate; 9. Driving block; 10. First upright plate; 11. Second upright plate; 12. Fixing block; 13. First ejector plate; 14. First receiving groove; 15. Pillar; 16. First limit cap; 17. Locking socket; 18. First inclined block; 19. Fixing plate; 20. First spring; 21. Locking plug; 22. Second spring; 23. Through groove; 24. Second inclined block; 25. Third spring; 26. Opening; 27. First through hole; 28. Second through hole; 29. ​​Second limit cap; 30. Second ejector plate; 31. Second receiving groove; 32. Lifting groove; 33. Push pillar. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] like Figure 1-12 As shown, a mold with a moving mold core-pulling mechanism includes a lower mold frame 1, an upper mold frame 2 disposed above the lower mold frame 1, a cylinder 5 disposed at the top center of the upper mold frame 2, a fixed mold 3 disposed at the top of the lower mold frame 1, a moving mold 4 disposed below the upper mold frame 2 corresponding to the fixed mold 3 and driven to rise and fall by the cylinder 5, and a guide post 6 disposed at the top of the moving mold 4 and movably connected to the upper mold frame 2 through a guide sleeve. The moving mold 4 is provided with an injection port for injection molding.

[0036] It also includes a core-pulling mechanism, which includes a first receiving groove 14 disposed at the top of the inner cavity of the moving mold 4. The first receiving groove 14 is symmetrically disposed at both ends of the top of the inner cavity of the moving mold 4. A first ejector plate 13 for pushing out the product is movably disposed in the first receiving groove 14. A first through hole 27 is disposed at the top of the upper mold frame 2 near the cylinder 5. A first upright plate 10 is movably connected to the first through hole 27. The first upright plate 10 is located on both sides of the cylinder 5 and corresponds one-to-one with the first ejector plate 13. The lower end of the first upright plate 10 extends into the inner cavity of the first receiving groove 14 and is fixedly connected to the top of the first ejector plate 13. A second through hole 28 is disposed on the side of the first through hole 27 away from the cylinder 5. A first ejector plate 13 corresponding to the second through hole 28 is fixedly connected to the top of the moving mold 4. The second upright plate 11 is located on the side of the two first upright plates 10 away from the cylinder 5. The top of the second upright plate 11 is fixedly connected to the first inclined block 18. The upper end of the first upright plate 10 extends to the top of the upper mold frame 2 and is fixedly connected to the fixing plate 19. The two ends of the fixing plate 19 are symmetrically and movably connected to the columns 15. The bottom of the columns 15 is fixedly connected to the top of the upper mold frame 2. The top of the columns 15 is fixedly connected to the first limiting cap 16. The part of the columns 15 between the fixing plate 19 and the first limiting cap 16 is fitted with a first spring 20. The upper end of the first upright plate 10 away from the cylinder 5 is provided with a locking socket 17. The second through hole 28 away from the first through hole 27 is provided with a locking mechanism for locking the locking socket 17.

[0037] In a preferred embodiment, the locking mechanism includes a fixing block 12 fixedly connected to the top of the upper mold frame 2 and corresponding to the second through hole 28. The fixing block 12 has an opening facing the cylinder 5, and a third spring 25 is provided inside the opening. A locking insert 21 corresponding to and adapted to the locking socket 17 is movably connected to the end of the opening away from the third spring 25. A through groove 23 corresponding to the second through hole 28 is provided on the locking insert 21. A second inclined block 24 corresponding to and adapted to the first inclined block 18 is fixedly connected to the side of the through groove 23 near the fixing block 12. The second inclined block 24 and the inclined surface of the first inclined block 18 cooperate to lock the cylinder 5. When the mold 3 and the moving mold 4 are closed, the first ejector plate 13 is located inside the first receiving groove 14, and at this time, one end of the locking plug 21 is inserted into the locking socket 17, and the first inclined block 18 is located below the locking plug 21. The end of the fixing plate 19 away from the first upright plate 10 corresponds to the second through hole 28. Thus, when the moving mold 4 moves upward, it drives the second upright plate 11 and the first inclined block 18 to move upward. Then, the second upright plate 11 drives the first inclined block 18 to pass through the second through hole 28 and the through groove 23 and abut against the bottom of the fixing plate 19. The top end of the fixing block 12 is provided with an opening 26 that corresponds to and matches the second inclined block 24.

[0038] Furthermore, it also includes a demolding mechanism linked to the core-pulling mechanism. The demolding mechanism includes second receiving grooves 31 located at both ends of the bottom of the inner cavity of the fixed mold 3. A second ejector plate 30 adapted to the second receiving groove 31 is movably disposed on the inner side of the second receiving groove 31. A lifting groove 32 is provided at the bottom of the lower mold frame 1. A lifting plate 8 is movably connected to the inner side of the lifting groove 32. Lifting columns 7 are symmetrically fixedly connected to the four corners of the top of the lifting plate 8. The upper end of the lifting column 7 extends to the top of the lower mold frame 1 and is fixedly connected to a second limit cap 29. A second spring 22 is sleeved on the part of the lifting column 7 located in the inner cavity of the lifting groove 32. The top of the lifting plate 8... The two ends of the part are symmetrically fixedly connected with push pins 33 corresponding to the second ejector plate 30. The upper end of the push pin 33 extends into the inner cavity of the second receiving groove 31 and is fixedly connected to the bottom of the second ejector plate 30. Thus, the lifting plate 8 can be raised by pushing the second ejector plate 30 upward through the push pin 33. The two sides of the moving mold 4 are fixedly connected with driving blocks 9 corresponding to the lifting pin 7. The upper end of the lifting pin 7 extends above the driving block 9, and the moving mold 4 and the driving block 9 are movablely engaged. The driving block 9 contacts and engages with the second limit cap 29. Thus, when the moving mold 4 rises to a certain extent, the lifting plate 8 can be driven to rise through the engagement of the driving block 9 and the second limit cap 29.

[0039] It should be noted that this invention is a mold with a moving mold core-pulling mechanism. During use, the moving mold 4 and the fixed mold 3 are closed for injection molding. After the product is formed, the cylinder 5 drives the moving mold 4 to rise, and the second vertical plate 11 is also driven to rise by the moving mold 4. In the initial state, one end of the locking insert 21 is inserted into the locking socket 17. The first vertical plate 10 and the first ejector plate 13 remain stationary, while the moving mold 4 rises. Therefore, the product inside the moving mold 4 can be pushed open by the first ejector plate 13. As the moving mold 4 rises, the first ejector plate 13 pushes open the core-pulling mechanism at the top of the second vertical plate 11. A first inclined block 18 enters the through slot 23, and then the first inclined block 18 and the second inclined block 24 abut against each other, forming an inclined surface engagement. The second inclined block 24 then moves the locking insert 21 to compress the third spring 25, causing one end of the locking insert 21 to disengage from the locking socket 17. The first vertical plate 10 is then unlocked. The moving mold 4 continues to move upwards, at which point the first inclined block 18 contacts the bottom end of the fixed plate 19. As the moving mold 4 rises, the fixed plate 19, the first vertical plate 10, and the first ejector plate 13 are completely disengaged by the first... The inclined block 18 pushes upward, and the fixed plate 19, in conjunction with the first limit cap 16, compresses the first spring 20. After the moving mold 4 moves to a certain height, it causes the block 9 to contact the second limit cap 29. Finally, the second limit cap 29 drives the lifting column 7 to move upward, and the lifting column 7 drives the lifting plate 8 to move upward. The second spring 22 is compressed, and the lifting plate 8, through the push column 33, drives the second ejector plate 30 to move upward, thereby ejecting the product. Then the mechanism is removed. In addition, when the moving mold 4 moves downward to close the mold, the second spring 22 returns to its original position, and the second ejector plate 30... The ejector plate 30 is hidden in the second receiving groove 31, the first spring 20 is reset, the first upright plate 10 is moved downward and reset, then the first inclined block 18 separates from the second inclined block 24 and the third spring 25 is reset, one end of the locking insert 21 is inserted into the locking socket 17 until the moving mold 4 and the fixed mold 3 are closed, and the first ejector plate 13 is located in the inner cavity of the first receiving groove 14 in the closed state. The device can realize the demolding of the product from the fixed mold 3 and the moving mold 4 while the moving mold 4 rises, which is convenient to remove, has a simple and compact structure, and improves efficiency.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A mold with a moving mold core pulling mechanism, comprising a lower mold frame (1), an upper mold frame (2) disposed above the lower mold frame (1), a cylinder (5) disposed at the top center of the upper mold frame (2), a fixed mold (3) disposed at the top of the lower mold frame (1), a moving mold (4) disposed below the upper mold frame (2) corresponding to the fixed mold (3) and driven to rise and fall by the cylinder (5), and a guide post (6) disposed at the top of the moving mold (4) and movably connected to the upper mold frame (2) through a guide sleeve; Its features are: It also includes a core-pulling mechanism, which includes a first receiving groove (14) disposed at the top of the inner cavity of the moving mold (4). The first receiving groove (14) is movably provided with a first ejector plate (13) for pushing out the product. The top of the upper mold frame (2) is provided with a first through hole (27) near the cylinder (5). The first through hole (27) is movably connected with a first upright plate (10) corresponding to the first ejector plate (13). The lower end of the first upright plate (10) extends into the inner cavity of the first receiving groove (14) and is fixedly connected to the top of the first ejector plate (13). A second through hole (28) is provided on the side of the first through hole (27) away from the cylinder (5). The top of the moving mold (4) is fixedly connected with a second upright plate (11) corresponding to the second through hole (28). A first inclined block (18) is fixedly connected to the top of the plate (11). The upper end of the first upright plate (10) extends to the top of the upper mold frame (2) and is fixedly connected to a fixed plate (19). The two ends of the fixed plate (19) are symmetrically connected to columns (15). The bottom of the column (15) is fixedly connected to the top of the upper mold frame (2). The top of the column (15) is fixedly connected to a first limiting cap (16). The part of the column (15) between the fixed plate (19) and the first limiting cap (16) is fitted with a first spring (20). A locking socket (17) is provided on the side of the upper end of the first upright plate (10) away from the cylinder (5). A locking mechanism for locking the locking socket (17) is provided on the side of the second through hole (28) away from the first through hole (27). The locking mechanism includes a fixing block (12) fixedly connected to the top of the upper mold frame (2) and corresponding to the second through hole (28). The fixing block (12) has an opening facing the cylinder (5), and a third spring (25) is provided inside the opening. A locking plug (21) corresponding to and adapted to the locking socket (17) is movably connected to the end of the opening away from the third spring (25). A through groove (23) corresponding to the second through hole (28) is opened on the locking plug (21). A second inclined block (24) corresponding to and adapted to the first inclined block (18) is fixedly connected to the side of the cavity of the through groove (23) near the fixing block (12). The second inclined block (24) and the first inclined block (18) are inclined to cooperate. An opening (26) corresponding to and adapted to the second inclined block (24) is provided at the top end of the fixing block (12).

2. A mold with a moving mold core-pulling mechanism according to claim 1, characterized in that: The first receiving groove (14) is symmetrically arranged at both ends of the top of the inner cavity of the moving mold (4); the first upright plate (10) is located on both sides of the cylinder (5) and corresponds one-to-one with the first ejector plate (13); the second upright plate (11) is located on the side of the two first upright plates (10) away from the cylinder (5).

3. A mold with a moving mold core-pulling mechanism according to claim 2, characterized in that: When the fixed mold (3) and the moving mold (4) are in the closed state, the first ejector plate (13) is located inside the first receiving groove (14), and at this time, one end of the locking plug (21) is inserted into the locking socket (17), and at this time, the first inclined block (18) is located below the locking plug (21).

4. A mold with a moving mold core-pulling mechanism according to claim 3, characterized in that: The end of the fixed plate (19) away from the first upright plate (10) corresponds to the second through hole (28), so that when the moving mold (4) moves upward, it drives the second upright plate (11) and the first inclined block (18) to move upward, and then the second upright plate (11) drives the first inclined block (18) to pass through the second through hole (28) and through groove (23) and abut against the bottom of the fixed plate (19).

5. A mold with a moving mold core-pulling mechanism according to claim 4, characterized in that: It also includes a demolding mechanism that is linked with the core-pulling mechanism. The demolding mechanism includes a second receiving groove (31) located at both ends of the bottom of the cavity of the fixed mold (3). A second ejector plate (30) adapted to the second receiving groove (31) is movably provided on the inner side of the second receiving groove (31). A lifting groove (32) is provided at the bottom of the lower mold frame (1). A lifting plate (8) is movably connected to the inner side of the lifting groove (32). Lifting columns (7) are symmetrically fixedly connected to the four corners of the top of the lifting plate (8). The upper end of the lifting column (7) extends to the top of the lower mold frame (1) and is fixedly connected to a second limit cap (29). A second spring (22) is sleeved on the part of the lifting column (7) located in the cavity of the lifting groove (32). Push columns (33) corresponding to the second ejector plate (30) are symmetrically fixedly connected to both ends of the top of the lifting plate (8). A driving block (9) corresponding to the lifting column (7) is fixedly connected to both sides of the moving mold (4).

6. A mold with a moving mold core-pulling mechanism according to claim 5, characterized in that: The upper end of the pusher (33) extends into the inner cavity of the second receiving groove (31) and is fixedly connected to the bottom of the second ejector plate (30), so that the lifting plate (8) can be raised by the pusher (33) to push the second ejector plate (30) upward.

7. A mold with a moving mold core-pulling mechanism according to claim 6, characterized in that: The upper end of the lifting column (7) extends above the driving block (9), and the moving mold (4) and the driving block (9) are in movable cooperation.

8. A mold with a moving mold core-pulling mechanism according to claim 7, characterized in that: The driving block (9) contacts and engages with the second limiting cap (29), so that when the moving mold (4) rises to a certain extent, the lifting plate (8) can be driven to rise through the cooperation of the driving block (9) and the second limiting cap (29).

9. A mold with a moving mold core-pulling mechanism according to claim 1, characterized in that: The moving mold (4) is provided with an injection port for injection molding.

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