Mold ejection device for injection mold

Abstract

The utility model relates to the technical field of injection molds, and provides a mold ejection device for an injection mold, which comprises a convex molding block and a concave molding block, and further comprises a mounting seat, the bottom end of the mounting seat is connected with an ejection mechanism, the ejection mechanism comprises a first working plate, a second working plate and a third working plate, the first working plate is provided with a mounting port, and the second working plate is provided with a mounting hole; the convex forming block is slidably connected with the mounting opening, an ejection opening is formed in the convex forming block, an ejection block is slidably connected into the ejection opening, an ejection rod is fixedly connected to the ejection block, the other end of the ejection rod is connected with the second working plate, a plurality of connecting rods are connected to the convex forming block, and the other ends of the connecting rods are connected with an adjusting plate; according to the device, by moving the convex forming block, the ejection block is moved out of the convex forming block to eject a finished product, meanwhile, air enters through the ejection opening to prevent vacuum from occurring in the interior, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a mold ejection device for an injection mold. Background Art

[0002] An injection mold is a tool for producing plastic products. It is composed of several groups of parts, and there is a molding cavity in this combination. During injection molding, the mold is clamped on the injection molding machine, and the molten plastic is injected into the molding cavity, where it is cooled and shaped. Then the upper and lower molds are separated, and the product is ejected from the mold cavity by the ejection system. Finally, the mold is closed for the next injection molding. The entire injection molding process is carried out in a cycle.

[0003] When the existing injection mold ejects the finished product, because the finished product and the molding cavity are in a vacuum state, ejecting too quickly can easily cause a vacuum inside, causing the finished product to break and deform. When inflation and ejection are coordinated, the inflation volume and ejection speed need to be adjusted, which has low practicality. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a mold ejection device for an injection mold to solve the problems of the prior art mentioned in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above object, the utility model provides the following technical solution: a mold ejection device for an injection mold, comprising a convex molding block and a concave molding block, and also comprising a mounting seat, the bottom end of which is connected with:

[0008] The moving mechanism includes a fixed plate, the fixed plate is fixedly connected to the mounting seat, a first electric push rod is installed on the fixed plate, an output end of the first electric push rod passes through the fixed plate and is fixedly connected to the concave forming block, a plurality of guide holes are opened on the fixed plate, a guide rod is slidably connected in the guide hole, and the guide rod is fixedly connected to the concave forming block;

[0009] The ejection mechanism comprises a first working plate, a second working plate and a third working plate, the first working plate, the second working plate and the third working plate are all fixedly connected to the mounting seat, a plurality of fixing rods are fixedly connected between the first working plate and the second working plate, a plurality of connecting plates are fixedly connected between the second working plate and the third working plate, a mounting opening is provided on the first working plate, the convex forming block is slidably connected to the mounting opening, a ejection outlet is provided on the convex forming block, a ejection block is slidably connected in the ejection outlet, a ejection rod is fixedly connected to the ejection block, and the other end of the ejection rod is fixedly connected to the second working plate, a plurality of connecting rods are fixedly connected to the convex forming block, the other ends of the plurality of connecting rods penetrate the second working plate and are connected to the adjusting plate, the adjusting plate is slidably connected to the plurality of connecting plates, a motor is installed on the third working plate, an output end of the motor penetrates the third working plate and is connected to a screw, and the other end of the screw penetrates the adjusting plate and is rotatably connected to the second working plate;

[0010] The clamping mechanism is used to clamp the convex forming block.

[0011] By adopting the above technical solution, the first electric push rod can drive the concave forming block to move, so that the concave forming block and the convex forming block cooperate to perform injection molding. At the same time, the motor can drive the adjusting plate to move through the screw rod, and the adjusting plate can drive the convex forming block to move through multiple connecting rods, so that the ejector block can be moved out of the convex forming block, and the ejector block and the first fixed plate can be used for unloading, and air can be taken in through the ejector port to eject the finished product.

[0012] Optionally, the clamping mechanism includes a lifting plate, a clamping slot is provided on the convex forming block, a through slot is provided on the first working plate, a clamping plate is slidably connected in the through slot, the clamping plate cooperates with the clamping slot, the bottom end of the clamping plate is fixedly connected to the lifting plate, and second electric push rods are installed on both sides of the first working plate, and the output end of the second electric push rod is connected to the lifting plate.

[0013] By adopting the above technical solution, the second electric push rod drives the lifting plate to move, so that the clamping plate is clamped with the clamping groove to fix the convex forming block.

[0014] Optionally, a plurality of reinforcement plates are connected to the top end of the mounting seat, and a top plate is fixedly connected to the top end of the plurality of reinforcement plates.

[0015] By adopting the above technical solution, the force borne by the mounting seat is distributed through the cooperation of multiple reinforcement plates and the top plate, thereby preventing the mounting seat from being deformed due to excessive force.

[0016] Optionally, a plurality of U-shaped grooves are provided on the top plate.

[0017] By adopting the above technical solution, the top plate is installed to the required position through the U-shaped groove.

[0018] Optionally, a plurality of balancing blocks are connected to the concave block.

[0019] By adopting the above technical solution, the vibration of the mold during operation can be balanced, thereby improving the working stability and processing quality of the mold.

[0020] (III) Beneficial effects

[0021] In summary, the present invention includes at least one of the following beneficial technical effects:

[0022] 1. The injection mold uses a mold ejection device, which enables the first electric push rod to drive the concave molding block to move, so that the concave molding block cooperates with the convex molding block for injection molding, and at the same time, the motor drives the adjustment plate to move through the screw, so that the adjustment plate drives the convex molding block to move through multiple connecting rods, so that the ejector block moves out of the convex molding block, so as to unload the material through the cooperation of the ejector block and the first fixed plate, and air is taken in through the ejector port, so as to eject the finished product.

[0023] 2. The mold ejection device for the injection mold drives the lifting plate to move through the second electric push rod, so that the clamping plate is clamped with the clamping groove to fix the convex forming block, so as to reduce the force borne by the screw and increase the service life of the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0025] Figure 2 For this utility model Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0026] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 4 It is a side structural schematic diagram of the utility model.

[0028] In the figure: 1. convex forming block; 2. concave forming block; 3. mounting seat; 4. fixing plate; 5. first electric push rod; 6. guide rod; 7. first working plate; 8. second working plate; 9. third working plate; 10. fixing rod; 11. connecting plate; 12. top block; 13. top rod; 14. connecting rod; 15. adjusting plate; 16. motor; 17. screw rod; 18. lifting plate; 19. clamping plate; 20. second electric push rod; 21. reinforcement plate; 22. top plate; 23. U-shaped groove; 24. balancing block. DETAILED DESCRIPTION

[0029] 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.

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0031] Reference Figure 1-Figure 4A mold ejection device for an injection mold includes a convex molding block 1 and a concave molding block 2, and also includes a mounting seat 3. The top of the mounting seat 3 is connected to a plurality of reinforcing plates 21, and the tops of the plurality of reinforcing plates 21 are fixedly connected to a top plate 22. Through the cooperation of the plurality of reinforcing plates 21 and the top plate 22, the force borne by the mounting seat 3 is shared to prevent the mounting seat 3 from being deformed due to excessive force. The top plate 22 is provided with a plurality of U-shaped grooves 23, and the top plate 22 is installed to a desired position through the U-shaped grooves 23. The bottom end of the mounting seat 3 is connected to: a fixing plate 4, which is fixedly connected to the mounting seat 3, and a first electric push rod 5 is installed on the fixing plate 4. The output end of the first electric push rod 5 passes through the fixed plate 4 and is fixedly connected to the concave forming block 2. The concave forming block 2 is driven to move by the first electric push rod 5. A plurality of guide holes are provided on the fixed plate 4. A guide rod 6 is slidably connected in the guide hole. The guide rod 6 is fixedly connected to the concave forming block 2. The concave forming block 2 is guided by the guide rod 6. The first working plate 7, the second working plate 8 and the third working plate 9 are all fixedly connected to the mounting seat 3. A plurality of fixing rods 10 are fixedly connected between the first working plate 7 and the second working plate 8. A plurality of connecting plates 11 are fixedly connected between the second working plate 8 and the third working plate 9. The first working plate 7 A mounting port is provided on the top, the convex forming block 1 is slidably connected to the mounting port, a top outlet is provided on the convex forming block 1, a top block 12 is slidably connected in the top outlet, a top rod 13 is fixedly connected to the top block 12, the other end of the top rod 13 is fixedly connected to the second working plate 8, a plurality of connecting rods 14 are fixedly connected to the convex forming block 1, the other ends of the plurality of connecting rods 14 penetrate the second working plate 8 and are connected to an adjustment plate 15, the adjustment plate 15 is slidably connected to the plurality of connecting plates 11, a motor 16 is installed on the third working plate 9, the output end of the motor 16 penetrates the third working plate 9 and is connected to a screw 17, the other end of the screw 17 penetrates the adjustment plate 15 is rotatably connected with the second working plate 8, so that the first electric push rod 5 drives the concave forming block 2 to move, so that the concave forming block 2 cooperates with the convex forming block 1 for injection molding, and at the same time, the motor 16 drives the adjusting plate 15 to move through the screw 17, so that the adjusting plate 15 drives the convex forming block 1 to move through multiple connecting rods 14, so that the ejector block 12 moves out of the convex forming block 1, so as to unload the material through the cooperation of the ejector block 12 and the first fixed plate 4, and air is introduced through the ejector port to eject the finished product. A plurality of balancing blocks 24 are connected to the concave forming block 2 to balance the vibration of the mold during operation, thereby improving the working stability and processing quality of the mold.

[0032] It should also be noted that a card slot is provided on the convex forming block 1, and a through slot is provided on the first working plate 7. A card plate 19 is slidably connected in the through slot. The card plate 19 cooperates with the card slot. The bottom end of the card plate 19 is fixedly connected to the lifting plate 18. Second electric push rods 20 are installed on both sides of the first working plate 7. The output end of the second electric push rod 20 is connected to the lifting plate 18, so that the second electric push rod 20 drives the lifting plate 18 to move, so that the card plate 19 is engaged with the card slot to fix the convex forming block 1.

[0033] In summary, the working principle and working process of the mold ejection device for the injection mold are as follows: when in use, the device is first installed on the existing injection molding machine, and the first electric push rod 5 is turned on, so that the first electric push rod 5 drives the concave molding block 2 to move, so that the concave molding block 2 contacts the convex molding block 1, and then poured into the injection molding machine, so that the plastic particles are heated and melted and then pushed to between the concave molding block 2 and the convex molding block 1 for injection molding. After the injection molding is completed, the concave molding block 2 is driven to move by the first electric push rod 5 to separate the concave molding block 2 from the convex molding block 1, and then the second electric push rod 20 is turned on, so that the second electric push rod 20 drives the card plate 19 to move through the lifting plate 18, so that the card plate 19 is disengaged from the card slot, and then the motor 16 is turned on, so that the motor 16 drives the adjustment plate 15 to move through the screw 17, so that the adjustment plate 15 drives the convex molding block 1 to move through multiple connecting rods 14, so that the ejector block 12 moves out of the convex molding block 1, and air is taken in through the ejector outlet, so as to unload the material through the cooperation of the ejector block 12 and the first fixed plate 4.

[0034] The above-mentioned injection molding machine is a prior art and has not been modified.

[0035] The above embodiments only express the specific implementation of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. The above-mentioned injection molding machine is a prior art and has not been modified. It should be pointed out that for ordinary technicians in this field, several deformations and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A mold ejection device for an injection mold, comprising a convex molding block (1) and a concave molding block (2), characterized in that: It also includes a mounting seat (3), the bottom end of which is connected with: The moving mechanism comprises a fixed plate (4), the fixed plate (4) is fixedly connected to the mounting seat (3), a first electric push rod (5) is mounted on the fixed plate (4), an output end of the first electric push rod (5) passes through the fixed plate (4) and is fixedly connected to the concave forming block (2), a plurality of guide holes are formed on the fixed plate (4), guide rods (6) are slidably connected in the guide holes, and the guide rods (6) are fixedly connected to the concave forming block (2); The ejection mechanism comprises a first working plate (7), a second working plate (8) and a third working plate (9), the first working plate (7), the second working plate (8) and the third working plate (9) are all fixedly connected to the mounting seat (3), a plurality of fixing rods (10) are fixedly connected between the first working plate (7) and the second working plate (8), a plurality of connecting plates (11) are fixedly connected between the second working plate (8) and the third working plate (9), a mounting opening is provided on the first working plate (7), the convex forming block (1) is slidably connected to the mounting opening, a ejection outlet is provided on the convex forming block (1), and an ejection block (11) is slidably connected in the ejection outlet. 2), a top rod (13) is fixedly connected to the top block (12), the other end of the top rod (13) is fixedly connected to the second working plate (8), a plurality of connecting rods (14) are fixedly connected to the convex forming block (1), the other ends of the plurality of connecting rods (14) pass through the second working plate (8) and are connected to an adjustment plate (15), the adjustment plate (15) is slidably connected to the plurality of connecting plates (11), a motor (16) is installed on the third working plate (9), the output end of the motor (16) passes through the third working plate (9) and is connected to a screw rod (17), the other end of the screw rod (17) passes through the adjustment plate (15) and is rotatably connected to the second working plate (8); A clamping mechanism is used to clamp the convex forming block (1).

2. The mold ejection device for an injection mold according to claim 1, characterized in that: The clamping mechanism comprises a lifting plate (18), a clamping slot is provided on the convex forming block (1), a through slot is provided on the first working plate (7), a clamping plate (19) is slidably connected in the through slot, the clamping plate (19) cooperates with the clamping slot, the bottom end of the clamping plate (19) is fixedly connected to the lifting plate (18), second electric push rods (20) are installed on both sides of the first working plate (7), and the output end of the second electric push rod (20) is connected to the lifting plate (18).

3. The mold ejection device for an injection mold according to claim 1, characterized in that: The top end of the mounting seat (3) is connected to a plurality of reinforcing plates (21), and the top ends of the plurality of reinforcing plates (21) are fixedly connected to a top plate (22).

4. The mold ejection device for an injection mold according to claim 3, characterized in that: The top plate (22) is provided with a plurality of U-shaped grooves (23).

5. The mold ejection device for an injection mold according to claim 4, characterized in that: A plurality of balancing blocks (24) are connected to the concave-shaped block (2).

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