Electric direct-pressure mold opening and closing device

Abstract

The utility model discloses an electric direct-pressure mold opening and closing device which comprises a base, a vertical plate is fixedly installed on the right side of the top of the base, a fixed mold is fixedly installed in the middle of the left side of the vertical plate, a notch is formed in the middle of the left end of the fixed mold, and a mold core is arranged in the notch. The mold core and the fixed mold are connected through a limiting assembly, a support is fixedly installed on the left side of the vertical plate, an electric push cylinder is fixedly installed on the left side of the support, and the telescopic end of the electric push cylinder is fixedly connected with a push-pull plate. Through the arrangement of the ejection block, the cross rod and the driving mechanism, when a formed product is clamped in the mold core and is difficult to take down, a worker can drive the cross rod to drive the connecting rod and the ejection block to move leftwards through operation of the driving mechanism, and due to the movement of the ejection block, the product clamped in the mold core can be ejected out; the quick demoulding device has the advantages that the quick demoulding effect of a product is realized, and the continuous working efficiency can be further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mold opening and closing, and particularly relates to an electric direct-pressure mold opening and closing device. Background Art

[0002] In the production process of plastic products, a mold opening and closing device is required. The function of the mold opening and closing device is to ensure the closing and opening of the mold. Secondly, after the mold is closed, the mold opening and closing device applies sufficient clamping force to the mold to resist the cavity pressure generated by the molten plastic entering the mold cavity, preventing the mold from opening and causing poor quality of the products. Its performance and structure have a great impact on the production capacity of the injection molding machine and the quality of the molded products. The existing electric direct-pressure mold opening and closing device has sufficient strength and stiffness.

[0003] However, there are some problems in the existing technology: Although the existing electric direct-pressure mold opening and closing device can basically realize the stamping and forming production of plastic products, in the actual use process, due to the large extrusion force, the formed plastic often gets stuck in the mold core of the fixed mold, making it difficult for the staff to remove it, thus affecting the continuous production efficiency. Therefore, we propose an electric direct-pressure mold opening and closing device. Summary of the Utility Model

[0004] Aiming at the problems existing in the existing technology, the purpose of the utility model is to provide an electric direct-pressure mold opening and closing device, which drives the ejector block to eject the formed plastic through the driving mechanism, facilitating the staff to remove the product, thereby improving the work efficiency.

[0005] The utility model is realized as follows: An electric direct-pressure mold opening and closing device includes a base. A vertical plate is fixedly installed on the right side of the top of the base. A fixed mold is fixedly installed in the middle of the left side of the vertical plate. A notch is opened in the middle of the left end of the fixed mold. A mold core is arranged inside the notch. The mold core and the fixed mold are connected by a limiting component. A bracket is fixedly installed on the left side of the vertical plate. An electric push cylinder is fixedly installed on the left side of the bracket. The telescopic end of the electric push cylinder is fixedly connected with a push-pull plate. A movable mold is fixedly installed on the right end of the push-pull plate. A ejector block is movably installed at the bottom of the inner wall of the notch. The top of the ejector block extends into the mold core. The other end of the ejector block is fixedly connected with a connecting rod. The other end of the connecting rod is fixedly connected with a cross bar. A through hole is opened in the cross bar. The cross bar and the fixed mold are connected by a driving mechanism.

[0006] Optionally, the driving mechanism includes a servo motor. The servo motor is fixedly installed at the bottom of the fixed mold. The output shaft of the servo motor is fixedly sleeved with a rotating shaft. The top end of the rotating shaft is fixedly connected with a disc. A round block located inside the through hole is fixedly installed on the disc.

[0007] Optionally, side grooves are formed on both sides of the left end of the fixed mold. Square blocks located inside the side grooves are fixedly connected to both sides of the mold core. Round grooves are formed in the square blocks. The limiting component includes a plug rod which is movably inserted into the fixed mold. One end of the plug rod extends into the round groove, and the other end of the plug rod is fixedly connected to a pull handle.

[0008] Optionally, a first spring is movably sleeved on the outer surface of the plug rod. Two ends of the first spring are respectively fixedly connected to the pull handle and the fixed mold.

[0009] Optionally, moving blocks are movably installed on both sides of the movable mold. A round rod is fixedly connected to the left end of the moving block. The left end of the round rod extends to the left side of the push-pull plate and is fixedly connected to a connecting plate.

[0010] Optionally, a second spring is movably sleeved on the outer surface of the round rod. Two ends of the second spring are respectively fixedly connected to the push-pull plate and the connecting plate.

[0011] Optionally, a driving motor is fixedly installed at the bottom on the left side of the push-pull plate. A round shaft is fixedly sleeved on the output shaft of the driving motor. An eccentric wheel is fixedly connected to the top end of the round shaft. The eccentric wheel abuts against the connecting plate.

[0012] Optionally, a water tank is formed in the fixed mold, and the water tank is arranged outside the notch.

[0013] Optionally, the pull handle is strip-shaped, and a sheath is fixedly sleeved on the outer surface of the pull handle.

[0014] Optionally, the diameter dimension of the disc is smaller than the length dimension of the cross bar, and the diameter dimension of the round block is the same as the width dimension of the inner wall of the through hole.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. By providing a top block, a cross bar and a driving mechanism, when the formed product is stuck in the mold core and difficult to remove, the staff can, through the operation of the driving mechanism, make the cross bar drive the connecting rod and the top block to move leftward. Due to the movement of the top block, the product stuck inside the mold core will be pushed out, thus achieving the effect of rapid demoulding of the product and further improving the continuous working efficiency.

[0017] 2. By providing a moving block, a connecting plate, a driving motor and an eccentric wheel, when the formed product is stuck on the movable mold, the staff can start the driving motor to make the round shaft drive the eccentric wheel to rotate, so as to be able to squeeze the connecting plate, make the connecting plate drive the round rod and the moving block to move rightward, and further be able to push and separate the product stuck outside the movable mold, which is also convenient for the staff to remove the product and improves the working efficiency.

[0018] Other features and advantages of the present utility model will become clear through the following detailed description of the exemplary embodiments of the present utility model with reference to the accompanying drawings. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram provided by the present utility model;

[0020] Figure 2 is a schematic structural diagram of the fixed mold provided by the present utility model;

[0021] Figure 3 is a schematic cross-sectional structural diagram inside the water tank provided by the present utility model;

[0022] Figure 4 is a schematic side structural diagram of the fixed mold provided by the present utility model;

[0023] Figure 5 is a schematic cross-sectional structural diagram of the fixed mold provided by the present utility model;

[0024] Figure 6 is a schematic top structural diagram of the movable mold provided by the present utility model;

[0025] Figure 7 is a schematic structural diagram of the movable mold provided by the present utility model.

[0026] In the figure: 1, base; 2, fixed mold; 3, notch; 4, mold core; 5, bracket; 6, electric push cylinder; 7, push-pull plate; 8, top block; 9, connecting rod; 10, cross bar; 11, through hole; 12, servo motor; 13, rotating shaft; 14, disc; 15, round block; 16, side groove; 17, square block; 18, round groove; 19, insertion rod; 20, pull handle; 21, first spring; 22, moving block; 23, round rod; 24, connecting plate; 25, second spring; 26, drive motor; 27, round shaft; 28, eccentric wheel; 29, water tank; 30, sheath; 31, movable mold; 32, vertical plate. Detailed Embodiments

[0027] To further understand the content, features and effects of the present utility model, the following embodiments are hereby cited and described in detail in conjunction with the accompanying drawings.

[0028] As Figures 1 to 7As shown in the figure, an electric direct-pressure mold opening and closing device provided by an embodiment of the present utility model includes a base 1. A vertical plate 32 is fixedly installed on the right side of the top of the base 1. A fixed mold 2 is fixedly installed in the middle of the left side of the vertical plate 32. A notch 3 is opened in the middle of the left end of the fixed mold 2. A mold core 4 is arranged inside the notch 3. The mold core 4 is connected to the fixed mold 2 through a limiting component. A support 5 is fixedly installed on the left side of the vertical plate 32. An electric push cylinder 6 is fixedly installed on the left side of the support 5. The telescopic end of the electric push cylinder 6 is fixedly connected to a push-pull plate 7. A moving mold 31 is fixedly installed at the right end of the push-pull plate 7. A top block 8 is movably installed at the bottom of the inner wall of the notch 3. The top of the top block 8 extends into the mold core 4. The other end of the top block 8 is fixedly connected to a connecting rod 9. The other end of the connecting rod 9 is fixedly connected to a cross bar 10. A through hole 11 is opened in the cross bar 10. The cross bar 10 is connected to the fixed mold 2 through a driving mechanism.

[0029] Further, the driving mechanism includes a servo motor 12. The servo motor 12 is fixedly installed at the bottom of the fixed mold 2. The output shaft of the servo motor 12 is fixedly sleeved with a rotating shaft 13. The top end of the rotating shaft 13 is fixedly connected to a disc 14. A round block 15 located inside the through hole 11 is fixedly installed on the disc 14.

[0030] By starting the servo motor 12, the rotating shaft 13 can drive the disc 14 to rotate, thereby driving the round block 15 to rotate, so that the round block 15 presses the inner wall of the through hole 11, and then the cross bar 10 can drive the connecting rod 9 and the top block 8 to move, so that the product stuck inside the mold core 4 can be ejected.

[0031] Further, side grooves 16 are opened on both sides of the left end of the fixed mold 2. Square blocks 17 located inside the side grooves 16 are fixedly connected to both sides of the mold core 4. Round grooves 18 are opened in the square blocks 17. The limiting component includes an insertion rod 19. The insertion rod 19 is movably inserted into the fixed mold 2. One end of the insertion rod 19 extends into the round groove 18. The other end of the insertion rod 19 is fixedly connected to a pull handle 20.

[0032] When the insertion rod 19 is inside the round groove 18, the square block 17 and the mold core 4 can be limited. By pulling the pull handle 20, the insertion rod 19 is disengaged from the round groove 18, and the staff can remove and replace the mold core 4.

[0033] Further, a first spring 21 is movably sleeved on the outer surface of the insertion rod 19. Both ends of the first spring 21 are respectively fixedly connected to the pull handle 20 and the fixed mold 2.

[0034] By setting the first spring 21 in a stretched state, due to the elastic recovery effect of the first spring 21, the insertion rod 19 will have a tendency to move downward, so that the bottom end of the insertion rod 19 can be kept inside the round groove 18, and the limiting effect on the mold core 4 can be stably maintained.

[0035] Further, moving blocks 22 are movably installed on both sides of the moving die 31. A round rod 23 is fixedly connected to the left end of the moving block 22. The left end of the round rod 23 extends to the left side of the push-pull plate 7 and is fixedly connected to a connecting plate 24.

[0036] Further, a second spring 25 is movably sleeved on the outer surface of the round rod 23. Two ends of the second spring 25 are respectively fixedly connected to the push-pull plate 7 and the connecting plate 24.

[0037] By setting the second spring 25 in a compressed state, due to the elastic force of the second spring 25, the connecting plate 24 and the moving block 22 will have a tendency to move leftward.

[0038] Further, a driving motor 26 is fixedly installed at the bottom on the left side of the push-pull plate 7. A round shaft 27 is fixedly sleeved on the output shaft of the driving motor 26. An eccentric wheel 28 is fixedly connected to the top of the round shaft 27. The eccentric wheel 28 abuts against the connecting plate 24.

[0039] By starting the driving motor 26, the round shaft 27 can be driven to drive the eccentric wheel 28 to rotate, so that the outer surface of the eccentric wheel 28 can squeeze the outer surface of the connecting plate 24, and further the moving block 22 can move rightward to push the product stuck on the moving die 31 away and make it fall off.

[0040] Further, a water tank 29 is opened on the fixed die 2. The water tank 29 is arranged outside the notch 3.

[0041] During injection molding and stamping, by circulating and injecting cooling water into the water tank 29 to absorb heat, it is convenient for the plastic formed in the mold core 4 to be quickly solidified, thus improving the working efficiency.

[0042] Further, the pull handle 20 is arranged in a long strip shape. A sheath 30 is fixedly sleeved on the outer surface of the pull handle 20.

[0043] The sheath 30 can be made of rubber. Due to the soft property of rubber, it can make the staff more comfortable when pulling the pull handle 20 through the sheath 30.

[0044] Further, the diameter dimension of the disc 14 is smaller than the length dimension of the cross bar 10, and the diameter dimension of the round block 15 is the same as the width dimension of the inner wall of the through hole 11.

[0045] Working principle: The operator starts the electric push rod 6 to make the moving die 31 move to the right to seal the die core 4. Then, after injecting the plastic liquid into the die core 4 through the injection molding equipment, the electric push rod 6 is started again to make the push-pull plate 7 drive the moving die 31 to move to the right. The moving die 31 moves into the die core 4 to extrude and form the plastic. At the same time, the operator passes cold water into the water tank 29 for heat absorption, so as to facilitate the rapid curing of the plastic formed in the die core 4 and improve the work efficiency. After forming, the operator starts the electric push rod 6 again to make the moving die 31 move to the left. If the product gets stuck inside the die core 4, the operator can start the servo motor 12 to make the rotating shaft 13 drive the disc 14 and the round block 15 to rotate, so as to be able to extrude the inner wall of the through hole 11, and make the cross bar 10 drive the connecting rod 9 and the top block 8 to move to the left to eject the product. If the product gets stuck on the moving die 31, the operator can start the driving motor 26 to make the round shaft 27 drive the eccentric wheel 28 to rotate, so that the outer surface of the eccentric wheel 28 extrudes the connecting plate 24, so as to be able to make the connecting plate 24 drive the round rod 23 and the moving block 22 to move to the right and compress the second spring 25. Due to the movement of the moving block 22, the product stuck on the moving die 31 will be pushed away and fall off, so as to facilitate the operator to remove the product and improve the overall work efficiency.

[0046] 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. An electric direct-pressure mold opening and closing device, comprising a base (1), characterized in that: On the right side of the top of the base (1), a vertical plate (32) is fixedly installed. In the middle of the left side of the vertical plate (32), a fixed mold (2) is fixedly installed. In the middle of the left end of the fixed mold (2), a notch (3) is formed. Inside the notch (3), a mold core (4) is arranged. The mold core (4) is connected to the fixed mold (2) through a limiting component. On the left side of the vertical plate (32), a bracket (5) is fixedly installed. On the left side of the bracket (5), an electric push cylinder (6) is fixedly installed. The telescopic end of the electric push cylinder (6) is fixedly connected to a push-pull plate (7). On the right end of the push-pull plate (7), a movable mold (31) is fixedly installed. At the bottom of the inner wall of the notch (3), a top block (8) is movably installed. The top of the top block (8) extends into the mold core (4). The other end of the top block (8) is fixedly connected to a connecting rod (9). The other end of the connecting rod (9) is fixedly connected to a cross bar (10). A through hole (11) is formed in the cross bar (10). The cross bar (10) is connected to the fixed mold (2) through a driving mechanism.

2. The electric direct-pressure mold opening and closing device according to claim 1, wherein: The driving mechanism includes a servo motor (12). The servo motor (12) is fixedly installed at the bottom of the fixed mold (2). The output shaft of the servo motor (12) is fixedly sleeved with a rotating shaft (13). The top end of the rotating shaft (13) is fixedly connected to a disc (14). On the disc (14), a round block (15) located inside the through hole (11) is fixedly installed.

3. The electric direct-pressure mold opening and closing device according to claim 1, wherein: On both sides of the left end of the fixed mold (2), side grooves (16) are formed. On both sides of the mold core (4), square blocks (17) located inside the side grooves (16) are fixedly connected. A round groove (18) is formed in the square block (17). The limiting component includes an insertion rod (19). The insertion rod (19) is movably inserted into the fixed mold (2). One end of the insertion rod (19) extends into the round groove (18). The other end of the insertion rod (19) is fixedly connected to a pull handle (20).

4. The electric direct-pressure mold opening and closing device according to claim 3, wherein: A first spring (21) is movably sleeved on the outer surface of the insertion rod (19). The two ends of the first spring (21) are respectively fixedly connected to the pull handle (20) and the fixed mold (2).

5. The electric direct-pressure mold opening and closing device according to claim 1, wherein: On both sides of the movable mold (31), moving blocks (22) are movably installed. The left end of the moving block (22) is fixedly connected to a round rod (23). The left end of the round rod (23) extends to the left side of the push-pull plate (7) and is fixedly connected to a connecting plate (24).

6. The electric direct-pressure mold opening and closing device according to claim 5, wherein: A second spring (25) is movably sleeved on the outer surface of the round rod (23). The two ends of the second spring (25) are respectively fixedly connected to the push-pull plate (7) and the connecting plate (24).

7. An electric direct-pressure mold opening and closing device according to claim 1, characterized in that: At the bottom of the left side of the push-pull plate (7), a driving motor (26) is fixedly installed. The output shaft of the driving motor (26) is fixedly sleeved with a round shaft (27). The top end of the round shaft (27) is fixedly connected to an eccentric wheel (28). The eccentric wheel (28) abuts against the connecting plate (24).

8. An electric direct-pressure mold opening and closing device according to claim 1, characterized in that: A water tank (29) is formed in the fixed mold (2). The water tank (29) is arranged outside the notch (3).

9. The electric direct-pressure mold opening and closing device according to claim 3, wherein: The pull handle (20) is arranged in a long strip shape, and a sheath (30) is fixedly sleeved on the outer surface of the pull handle (20).

10. The electric direct-pressure mold opening and closing device according to claim 2, wherein: The diameter dimension of the disc (14) is smaller than the length dimension of the cross bar (10), and the diameter dimension of the round block (15) is the same as the width dimension of the inner wall of the through hole (11).

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