A rapid ejection mechanism for injection mold

Abstract

The utility model belongs to die ejection technical field, and disclose a kind of injection mold quick ejection mechanism, including lower mould, recess is established in the inside of lower mould, the lower end surface of recess is established with round groove, and round groove is inside lower mould, the inside fixed with cylinder of round groove, the inside of cylinder is equipped with connecting rod, the upper end surface fixed with thread groove of connecting rod, the outside rotation of thread groove is equipped with piston, by cylinder, connecting rod, piston, can make finished product quickly eject lower mould, by recess, can make cylinder better place inside lower mould, by piston, thread groove, can adjust the height of ejection, make finished product quickly separate from mould, adjust height production efficiency, by connecting rod, to the limiting effect of piston, make piston not to separate from cylinder.

Description

Technical Field

[0001] This utility model belongs to the field of mold ejection technology, specifically a rapid ejection mechanism for injection molds. Background Technology

[0002] When demolding injection molds, complex injection molded products with many corners and long protrusions may experience significant adhesion due to the deep formation of these protrusions within the lower mold core (deep grooves on the lower mold core) after injection molding. Using conventional ejection mechanisms results in slow ejection speeds, difficulty in ejecting the product, low ejection yield, and low production efficiency. Therefore, a fast ejection mechanism for injection molds is needed.

[0003] Meanwhile, CN212498801U discloses a rapid ejection mechanism for injection molds, including a lower mold plate and a lower mold core. A pad is fixedly connected to the lower part of the lower mold plate. Rectangular grooves are opened on the front and rear sides of the pad. A base plate is fixedly connected to the lower part of the pad. A first guide post is fixedly connected to the base plate. A first fixed plate, a second fixed plate, a third fixed plate, and a fourth fixed plate are arranged sequentially from bottom to top on the guide post. The four corners of the second fixed plate and the third fixed plate are all provided with clearance grooves. A rapid ejection block is provided in each clearance groove of the second fixed plate. The rapid ejection block includes a rotating plate, a pulley, and a fixed block. A first ejector rod is fixedly connected to the first fixed plate, and a second ejector rod is fixedly connected to the fourth fixed plate.

[0004] The aforementioned rapid ejection mechanism for injection molds has an overly cumbersome ejection structure, requires a large space, is difficult to replace or repair if damaged, is not very fast at ejecting finished products, and makes it easy for finished products to stick to the mold, which is cumbersome to clean and results in long downtime, thus reducing production efficiency.

[0005] Therefore, a rapid ejection mechanism for injection molds is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a rapid ejection mechanism for injection molds, which has the advantages of enabling rapid demolding of finished products and reducing mechanical wear and impact.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rapid ejection mechanism for injection molds, including a lower mold, wherein a groove is formed inside the lower mold, a circular groove is formed on the lower end face of the groove, and the circular groove is inside the lower mold, a cylinder is fixedly installed inside the circular groove, a connecting rod is provided inside the cylinder, a threaded groove is fixedly provided on the upper end face of the connecting rod, and a piston is rotatably provided on the outer side of the threaded groove. Through the cylinder, connecting rod, and piston, the finished product can be rapidly ejected from the lower mold.

[0008] Preferably, the piston is internally threaded, and a flexible support block is fixedly provided on the upper end face of the piston. The upper side of the flexible support block is provided with a screw hole, and an elastic rope is attached to the upper end face of the flexible support block.

[0009] By adopting the above technical solution, elastic ropes and flexible support blocks can be used with finished products of different sizes, making it easier for the piston to fit into the finished product.

[0010] Preferably, the elastic rope has screw holes on both sides inside, and a screw is rotatably installed inside the screw hole, and the screw is rotatably connected to the flexible support block.

[0011] By adopting the above technical solution, the flexible support block and elastic rope can be fixed together using screws.

[0012] Preferably, the lower mold has an air inlet hole inside, an air inlet fixedly provided on the front end face of the lower mold, and a vent valve rotatably provided on the rear end face of the lower mold.

[0013] By adopting the above technical solution, the device can be operated through the air inlet.

[0014] Preferably, a pneumatic telescopic rod one is fixedly provided inside the lower mold, a pneumatic telescopic rod two is slidably provided inside the pneumatic telescopic rod one, and an upper mold is fixedly provided on the upper end face of the pneumatic telescopic rod two.

[0015] By adopting the above technical solution, the upper mold and the lower mold can be separated by pneumatic telescopic rod one and pneumatic telescopic rod two, so that the cylinder can eject the finished product.

[0016] Preferably, an intake valve is fixedly provided on the upper side of the front end face of the cylinder, and an exhaust valve is fixedly provided on the upper side of the rear end face of the cylinder.

[0017] By adopting the above technical solution, the piston can be made to work through the intake valve and the exhaust valve.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. This utility model allows the cylinder to be better placed inside the lower mold through the groove. The ejection height can be adjusted through the piston and threaded groove, so that the finished product can be quickly separated from the mold, thereby improving production efficiency. The connecting rod plays a limiting role for the piston, so that the piston will not detach from the cylinder.

[0020] 2. This utility model uses screws to fix the flexible support block and elastic rope. The flexible support block and elastic rope can be adapted to finished products of different sizes, better fit the finished product, and make the finished product eject from the lower mold. The finished product will not shake randomly and can be kept in place steadily. The pneumatic telescopic column one and pneumatic telescopic column two can separate the upper mold and the lower mold more quickly. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the mounting structure of the groove in this utility model;

[0023] Figure 3 This is a schematic diagram of the installation structure of the exhaust valve of this utility model;

[0024] Figure 4 This is a schematic diagram of the screw installation structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the installation structure of the circular groove of this utility model.

[0026] In the diagram: 1. Lower mold; 2. Upper mold; 3. Pneumatic telescopic rod one; 4. Air release valve; 5. Air inlet; 6. Groove; 7. Cylinder; 8. Connecting rod; 9. Piston; 10. Air inlet valve; 11. Flexible support block; 12. Elastic rope; 13. Screw; 14. Screw hole one; 15. Screw hole two; 16. Air inlet; 17. Threaded groove; 18. Circular groove; 19. Thread; 20. Pneumatic telescopic rod two; 21. Exhaust valve. Detailed Implementation

[0027] 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.

[0028] The following describes an embodiment of this utility model based on its overall structure.

[0029] like Figures 1 to 5As shown, this utility model provides a rapid ejection mechanism for injection molds, including a lower mold 1. The lower mold 1 has a groove 6 inside, and a circular groove 18 is formed on the lower end face of the groove 6. The circular groove 18 is inside the lower mold 1. A cylinder 7 is fixedly installed inside the circular groove 18. A connecting rod 8 is installed inside the cylinder 7. A threaded groove 17 is fixedly installed on the upper end face of the connecting rod 8. A piston 9 is rotatably installed on the outside of the threaded groove 17. The groove 6 allows the cylinder 7 to be better positioned inside the lower mold 1. The piston 9 and the threaded groove 17 can be used to adjust the ejection height, allowing the finished product to be quickly separated from the mold, thus improving production efficiency. The connecting rod 8 limits the piston 9, preventing it from detaching from the cylinder 7.

[0030] In this embodiment, the piston 9 is further provided with a thread 19 inside, and a flexible support block 11 is fixedly provided on the upper end face of the piston 9. A screw hole 15 is opened on the upper side inside the flexible support block 11, and an elastic rope 12 is attached to the upper end face of the flexible support block 11. Through the elastic rope 12 and the flexible support block 11, it can be used with finished products of different sizes, making it easier for the piston 9 to fit into the finished product, so that the finished product will not shake randomly when it is ejected from the mold.

[0031] The elastic rope 12 has screw holes 14 on both sides inside. Screws 13 are rotatably installed inside the screw holes 14 and are rotatably set with the flexible support block 11. The flexible support block 11 and the elastic rope 12 can be fixed by the screws 13.

[0032] The lower mold 1 has an air inlet 16 inside, an air inlet 5 is fixedly provided on the front end face of the lower mold 1, and an air vent 4 is rotatably provided on the rear end face of the lower mold 1. The device can be operated through the air inlet 16.

[0033] The lower mold 1 is fixedly equipped with a pneumatic telescopic rod 3, and a pneumatic telescopic rod 20 is slidably installed inside the pneumatic telescopic rod 3. The upper mold 2 is fixedly installed on the upper end face of the pneumatic telescopic rod 20. The upper mold 2 and the lower mold 1 can be separated by the pneumatic telescopic rod 3 and the pneumatic telescopic rod 20, so that the cylinder 7 can eject the finished product.

[0034] An intake valve 10 is fixedly installed on the upper side of the front end face of cylinder 7, and an exhaust valve 21 is fixedly installed on the upper side of the rear end face of cylinder 7. Through the intake valve 10 and the exhaust valve 4, piston 9 can be made to work.

[0035] The working principle and process of a rapid ejection mechanism for injection molds:

[0036] A circular groove 18 is cut below the groove 6 of the lower mold 1. A cylinder 7 is installed inside the circular groove 18, and a connecting rod 8 is installed inside the cylinder 7. A threaded groove 17 is cut on the top of the connecting rod 8, and a piston 9 is installed on the outside of the threaded groove 17. A flexible support block 11 is installed on the top of the piston 9, and an elastic rope 12 is installed on the top of the flexible support block 11. An air inlet 16 is cut inside the lower mold 1. An air inlet 5 is installed at the front of the lower mold 1, and a vent valve 4 is installed at the rear of the lower mold 1. A pneumatic telescopic rod 1 3 is installed inside the lower mold 1, and a pneumatic telescopic rod 20 is installed inside the pneumatic telescopic rod 1 3. After the injection mold is finished, the air inlet 5 at the front of the lower mold 1 is connected to an air pipe, and air is pumped into the air inlet 16 inside the lower mold 1. When there is gas inside the air inlet 16, the pneumatic telescopic rod 1 3 rises and falls. The second pneumatic telescopic rod 20 will also rise and fall, moving the upper mold 2 away from the lower mold 1. The cylinder 7 inside the lower mold 1 will also move upward. Air enters through the air inlet valve 10 on the outside of the cylinder 7, and rises and falls through the piston 9 and connecting rod 8. The piston 9 can be adjusted according to the finished product. There is a flexible support block 11 on the piston 9, and an elastic rope 12 on the flexible support block 11. The elastic rope 12 is fixed to the flexible support block 11 by screws 13. It can be raised according to different models of finished products to prevent them from moving around and to clamp them. When re-injection is required, the operator only needs to open the vent valve 4 behind the lower mold 1 to release the gas inside the lower mold 1. The first pneumatic telescopic rod 3 and the second pneumatic telescopic rod 20 will fall, so that the upper mold 2 and the lower mold 1 fit together, which plays the role of a quick ejection mechanism for injection molds.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] 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 these 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 rapid ejection mechanism for an injection mold, comprising a lower mold (1), characterized in that: The lower mold (1) has a groove (6) inside, and a circular groove (18) is formed on the lower end face of the groove (6). The circular groove (18) is inside the lower mold (1). A cylinder (7) is fixedly installed inside the circular groove (18). A connecting rod (8) is provided inside the cylinder (7). A threaded groove (17) is fixedly provided on the upper end face of the connecting rod (8). A piston (9) is rotatably provided on the outer side of the threaded groove (17).

2. The rapid ejection mechanism for injection molds according to claim 1, characterized in that: The piston (9) is fixedly provided with a thread (19) inside, and a flexible support block (11) is fixedly provided on the upper end face of the piston (9). A screw hole (15) is opened on the upper side inside the flexible support block (11), and an elastic rope (12) is attached to the upper end face of the flexible support block (11).

3. The rapid ejection mechanism for injection molds according to claim 2, characterized in that: The elastic rope (12) has screw holes (14) on both sides inside. A screw (13) is rotatably installed inside the screw hole (14), and the screw (13) is rotatably installed with the flexible support block (11).

4. The rapid ejection mechanism for injection molds according to claim 1, characterized in that: The lower mold (1) has an air inlet (16) inside, an air inlet (5) is fixedly provided on the front end face of the lower mold (1), and an air vent (4) is rotatably provided on the rear end face of the lower mold (1).

5. The rapid ejection mechanism for an injection mold according to claim 1, characterized in that: The lower mold (1) is fixedly provided with a pneumatic telescopic rod one (3), and the pneumatic telescopic rod two (20) is slidably provided inside the pneumatic telescopic rod one (3). The upper mold (2) is fixedly provided on the upper end face of the pneumatic telescopic rod two (20).

6. The rapid ejection mechanism for injection molds according to claim 1, characterized in that: An intake valve (10) is fixedly provided on the upper side of the front end face of the cylinder (7), and an exhaust valve (21) is fixedly provided on the upper side of the rear end face of the cylinder (7).

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