Demolding mechanism of injection mold

Abstract

The demolding mechanism comprises a fixed mold assembly and a movable mold assembly, the fixed mold assembly and the movable mold assembly are combined together, the fixed mold assembly comprises a fixed mold, two first rubber capsule sleeves are installed on one side of the inner wall of the fixed mold through bolts, and a mold core is installed at one ends of the two first rubber capsule sleeves through bolts; a placement groove is formed in the outer wall of one side of the mold core, an ejection block is slidably inserted into the placement groove, and a second rubber bag sleeve is mounted on one side of the inner wall of the fixed mold through a bolt; when an injection product in the mold needs to be demolded, equipment such as an air cylinder connected with the mold can be closed firstly, and then the rubber capsule sleeve II and the rubber capsule sleeve III can be unfolded under the rebound action of media in the power element I and the power element II, so that the product sleeved on the mold core is ejected off, and the product is separated from the fixed mold; and along with the expansion of the third rubber capsule sleeve, the third rubber capsule sleeve can drive the piston plate to eject out the product in the movable mold, so that a worker can conveniently take the formed product.

Description

Technical Field

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

[0002] An injection mold is a mold that is used for both injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a wide variety of patterns and colors, shapes from simple to complex, sizes from large to small, and precise product dimensions. The product is easy to update and can be made into parts with complex shapes. Injection molding is suitable for mass production and molding processing fields such as products with complex shapes. Demolding refers to the operation of removing the molded workpiece from the injection mold.

[0003] For example, the demoulding mechanism of an injection mold with application number CN202122296557.2 and authorization announcement date 20220215 includes a main support plate, a demoulding unit and a die pressing unit; a fixed-end injection molding box is installed on the left side of the upper end of the main support plate; the demoulding unit includes a demoulding arch bar, a push plate, a demoulding rotating plate, a demoulding motor, a demoulding screw, a lower end vertical plate and a trapezoidal slide, the left end of the main support plate is slidably connected with a demoulding arch bar, the upper right end of the demoulding arch bar passes through the middle of the left end of the fixed-end injection molding box to connect the push plate, the demoulding rotating plate is installed at the lower end of the main support plate, the demoulding motor is installed on the left side of the lower end of the main support plate, and the output shaft of the demoulding motor is connected to the left end of the demoulding screw. The demoulding mechanism of the injection mold can not only realize injection molding, but also cool the injection molded parts and push them out, improve the demoulding effect, and better meet the demoulding requirements of the mold.

[0004] At present, the injection molds on the market are generally equipped with automatic demoulding structures, but the demoulding structures require more electrical equipment such as motors or cylinders to drive them, and the cost of use is relatively high. In addition, the demoulding speed of the demoulding structures using electrical equipment such as motors or cylinders is fast, which will cause greater pulling on the molded injection molded products, resulting in product damage. Therefore, it is urgent to design a demoulding mechanism for injection molds to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a demoulding mechanism for an injection mold to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A demoulding mechanism for an injection mold comprises a fixed mold component and a movable mold component, wherein the fixed mold component and the movable mold component are combined together, the fixed mold component comprises a fixed mold, two rubber bag sleeves 1 are installed on one side of the inner wall of the fixed mold by bolts, and one end of the two rubber bag sleeves 1 is installed with a mold core by bolts, an outer wall on one side of the mold core is provided with a placement groove, and a top block is slidably inserted in the placement groove, a rubber bag sleeve 2 is installed on one side of the inner wall of the fixed mold by bolts, and one end of the rubber bag sleeve 2 is fixedly connected with the top block, the movable mold component comprises a movable mold, three rubber bag sleeves 3 are installed on one side of the inner wall of the movable mold by bolts, and one end of the three rubber bag sleeves 3 is installed with a piston plate by bolts, a power element 2 is installed on the outer wall on one side of the bottom of the fixed mold component by bolts, and the power element 2 is communicated with the rubber bag sleeve 1 and the rubber bag sleeve 2 through a pipeline, and a power element 1 is provided on the outer wall on one side of the bottom of the movable mold component, and the power element 1 is communicated with the three rubber bag sleeves 3 through a pipeline.

[0008] Furthermore, a slot is provided at one end of the fixed mold, and a buffer bag sleeve is provided inside the slot, and the buffer bag sleeve is communicated with the power element 1 through a pipeline.

[0009] Furthermore, a groove is formed at one end of the movable mold, and one end of the buffer bag sleeve is inserted into the groove.

[0010] Furthermore, the power element 1 and the power element 2 each include two support plates, and the four support plates are respectively installed on the outer walls of the bottom of the fixed mold and the movable mold in groups of two by bolts.

[0011] Furthermore, a plurality of cylinders are welded between the two support plates, a piston is slidably inserted inside the cylinder, and a spring is installed at one end of the piston via a bolt.

[0012] Furthermore, one end of the piston is threadedly connected to a threaded rod passing through the support plate, and the outer portion of the threaded rod is threadedly connected to a nut, the nut is in contact with the support plate, and the threaded rod is located inside the spring.

[0013] Furthermore, hydraulic oil in contact with the piston member is provided inside the cylinder, and valves are installed on the outer walls of one side of the bottom of the fixed mold and the movable mold through bolts, and the valves are connected to the rubber bag sleeve 1, the buffer bag sleeve, the rubber bag sleeve 2, the rubber bag sleeve 3 and the cylinder through pipelines.

[0014] In the above technical solution, the utility model provides a demoulding mechanism for an injection mold, and the beneficial effects are:

[0015] (1) By setting the rubber bag sleeve 2, rubber bag sleeve 3, power element 1 and power element 2, when the product injected in the mold needs to be demolded, the cylinder and other equipment connected to the mold can be closed first, and then under the rebound effect of the medium in the power element 1 and the power element 2, the rubber bag sleeve 2 and the rubber bag sleeve 3 will be expanded, thereby pushing off the product sleeved on the mold core, so that the product is separated from the fixed mold. Subsequently, as the rubber bag sleeve 3 is expanded, the rubber bag sleeve 3 can push out the product inside the movable mold with the piston plate, so that the workers can take the molded product.

[0016] (2) By setting up the buffer bag, when the mold is closed, the design of the buffer bag can reduce the impact force caused by the movable mold on the fixed mold during mold closing, thereby avoiding the situation where the movable mold and the fixed mold collide for a long time and the service life is greatly reduced.

[0017] (3) By means of the provided nuts and threaded rods, when using the mold to produce products with different bottom thicknesses, the nuts corresponding to the rubber bladder sleeve 1 and the rubber bladder sleeve 3 can be rotated to change the position of the nuts on the threaded rods, thereby changing the longest sliding distance of the piston member inside the cylinder, changing the rebound length of the rubber bladder sleeve 1 and the rubber bladder sleeve 3, and changing the extension length of the mold core and the position of the piston plate inside the movable mold, thereby adjusting the distance between the mold core and the piston plate to produce products with different bottom thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 The utility model provides an overall structural schematic diagram of a demoulding mechanism embodiment of an injection mold.

[0020] Figure 2 The present invention is a schematic structural diagram of a fixed mold assembly provided in an embodiment of a demoulding mechanism of an injection mold according to the present invention.

[0021] Figure 3 The present invention is a schematic diagram of the structure of a movable mold assembly provided in an embodiment of a demoulding mechanism of an injection mold according to the present invention.

[0022] Figure 4 A schematic structural diagram of a power element provided in an embodiment of a demoulding mechanism of an injection mold of the utility model.

[0023] Figure 5 The present invention is a schematic diagram of the structure of a second power element provided in an embodiment of a demoulding mechanism of an injection mold according to the present invention.

[0024] Description of reference numerals:

[0025] 1. Fixed mold assembly; 2. Moving mold assembly; 3. Power element 1; 4. Power element 2; 5. Fixed mold; 6. Rubber bag sleeve 1; 7. Mold core; 8. Slot; 9. Buffer bag sleeve; 10. Placement groove; 11. Ejector block; 12. Rubber bag sleeve 2; 13. Valve; 14. Moving mold; 15. Rubber bag sleeve 3; 16. Piston plate; 17. Groove; 18. Support plate; 19. Cylinder; 20. Threaded rod; 21. Nut; 22. Spring; 23. Piston member; 24. Hydraulic oil. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] like Figure 1-5 As shown, a demoulding mechanism of an injection mold provided by an embodiment of the utility model comprises a fixed mold assembly 1 and a movable mold assembly 2. The fixed mold assembly 1 and the movable mold assembly 2 are combined together. The fixed mold assembly 1 comprises a fixed mold 5. Two rubber bag sleeves 6 are installed on one side of the inner wall of the fixed mold 5 by bolts, and a mold core 7 is installed on one end of the two rubber bag sleeves 6 by bolts. A placement groove 10 is opened on the outer wall of one side of the mold core 7, and a top block 11 is slidably inserted in the placement groove 10. A rubber bag sleeve 2 12 is installed on one side of the inner wall of the fixed mold 5 by bolts, and the rubber bag sleeve 2 12 One end is fixedly connected to the top block 11, the movable mold assembly 2 includes a movable mold 14, three rubber bag sleeves 3 15 are installed on one side of the inner wall of the movable mold 14 by bolts, and one end of the three rubber bag sleeves 3 15 is installed with a piston plate 16 by bolts, a power element 2 4 is installed on the outer wall of one side of the bottom of the fixed mold assembly 1 by bolts, and the power element 2 4 is connected with the rubber bag sleeve 1 6 and the rubber bag sleeve 2 12 through a pipeline, and a power element 1 3 is provided on the outer wall of one side of the bottom of the movable mold assembly 2, and the power element 1 3 is connected with the three rubber bag sleeves 3 15 through a pipeline.

[0028] Specifically, in this embodiment, a fixed mold assembly 1 and a movable mold assembly 2 are included. The fixed mold assembly 1 and the movable mold assembly 2 are combined together. The fixed mold assembly 1 includes a fixed mold 5. Two rubber bag sleeves 6 are installed on one side of the inner wall of the fixed mold 5 by bolts, and one end of the two rubber bag sleeves 6 is installed with a mold core 7 by bolts. A placement groove 10 is opened on the outer wall of one side of the mold core 7, and a top block 11 is slidably inserted in the placement groove 10. A rubber bag sleeve 2 12 is installed on one side of the inner wall of the fixed mold 5 by bolts, and one end of the rubber bag sleeve 2 12 is fixedly connected to the top block 11. The movable mold assembly 2 includes a movable mold 14. The inner wall of the movable mold 14 Three rubber bag sleeves 15 are installed on one side by bolts, and piston plates 16 are installed on one end of the three rubber bag sleeves 15 by bolts. When the injection material is injected between the fixed mold 5 and the movable mold 14 of the mold, the injection material will squeeze the piston plate 16 and the mold core 7, so that the piston plate 16 and the mold core 7 are retracted into the deep inside of the movable mold 14 and the fixed mold 5. At the same time, the rubber bag sleeve 16, the rubber bag sleeve 2 12, and the rubber bag sleeve 3 15 will be squeezed, so that the hydraulic oil 24 inside them will flow into the power element 1 3 and the power element 2 4. When demolding, the cylinder and other devices connected to the mold can be closed first. Then, since there is no strong restriction between the fixed mold 5 and the movable mold 14, under the action of the power element 1 3 and the power element 2 4, the hydraulic oil 24 will flow back into the corresponding rubber bag sleeve 1 6, rubber bag sleeve 2 12, and rubber bag sleeve 3 15, so that the rubber bag sleeve 1 6, rubber bag sleeve 2 12, and rubber bag sleeve 3 15 are expanded, thereby pushing off the product sleeved on the mold core 7, so that the product is separated from the fixed mold 5, and the product falls into the movable mold 14. Subsequently, as the rubber bag sleeve 3 15 is expanded, the rubber bag sleeve 3 15 can push out the product inside the movable mold 14 with the piston plate 16, so as to facilitate the work. People take the formed product, a power element 2 4 is installed on the outer wall of one side of the bottom of the fixed mold assembly 1 through bolts, and the power element 2 4 is interconnected with the rubber bag sleeve 1 6 and the rubber bag sleeve 2 12 through a pipeline, and a power element 1 3 is provided on the outer wall of one side of the bottom of the movable mold assembly 2. The power element 1 3 and the power element 2 4 can temporarily store the hydraulic oil 24 in the rubber bag sleeve 1 6, the rubber bag sleeve 2 12 and the rubber bag sleeve 3 15, and provide power for the rubber bag sleeve 1 6, the rubber bag sleeve 2 12 and the rubber bag sleeve 3 15 during demolding, and the power element 1 3 is interconnected with the three rubber bag sleeves 3 15 through a pipeline.

[0029] The utility model provides a demoulding mechanism for an injection mold. When the product injected in the mold needs to be demoulded, the cylinder and other equipment connected to the mold can be closed first. Subsequently, under the rebound effect of the medium in the power element 1 3 and the power element 2 4, the rubber bag sleeve 2 12 and the rubber bag sleeve 3 15 will be expanded, so as to push out the product sleeved on the mold core 7, so that the product is separated from the fixed mold 5. Subsequently, as the rubber bag sleeve 3 15 is expanded, the rubber bag sleeve 3 15 can push out the product inside the movable mold 14 with the piston plate 16, so that the workers can take the molded products.

[0030] In one embodiment provided by the present utility model, Figure 2 As shown, a slot 8 is provided at one end of the fixed mold 5, and a buffer bag sleeve 9 is provided inside the slot 8. When the mold is closed, the design of the buffer bag sleeve 9 can reduce the impact force of the movable mold 14 on the fixed mold 5 during mold closing, thereby avoiding the situation where the service life of the movable mold 14 and the fixed mold 5 is greatly reduced due to long-term collision. The buffer bag sleeve 9 is connected to the power element 3 through a pipeline, and a groove 17 is provided at one end of the movable mold 14, and one end of the buffer bag sleeve 9 is inserted into the groove 17.

[0031] In another embodiment provided by the present utility model, Figure 4-5As shown, the power element 1 3 and the power element 2 4 each include two support plates 18, and the four support plates 18 are respectively installed on the outer wall of the bottom of the fixed mold 5 and the movable mold 14 in pairs by bolts. A plurality of cylinders 19 are welded between the two support plates 18, and a piston 23 is inserted and slidably connected inside the cylinder 19, and a spring 22 is installed at one end of the piston 23 by bolts. When demoulding, since there is no strong restriction between the fixed mold 5 and the movable mold 14, under the action of the spring 22, the piston 23 will slide inside the cylinder 19 with the threaded rod 20, so that the piston 23 pushes the hydraulic oil 24 inside the cylinder 19 into the valve 13. , and then enter the corresponding rubber bag sleeve 1 6, rubber bag sleeve 2 12, rubber bag sleeve 3 15, and buffer bag sleeve 9 through the valve 13, so that the rubber bag sleeve 1 6, rubber bag sleeve 2 12, rubber bag sleeve 3 15, and buffer bag sleeve 9 are expanded, thereby pushing off the product on the mold core 7, so that the product is separated from the fixed mold 5, and the product falls into the movable mold 14. Subsequently, as the rubber bag sleeve 3 15 is expanded, the rubber bag sleeve 3 15 can push out the product inside the movable mold 14 with the piston plate 16. One end of the piston member 23 is threadedly connected to a threaded rod 20 passing through the support plate 18, and the threaded rod 20 is externally threadedly connected to Nut 21, when using the mold to produce products with different bottom thicknesses, the nut 21 corresponding to the rubber bag sleeve 16 and the rubber bag sleeve 3 15 can be rotated to change the position of the nut 21 on the threaded rod 20, so that the longest sliding distance of the piston member 23 inside the cylinder 19 changes, so that the rebound length of the rubber bag sleeve 16 and the rubber bag sleeve 3 15 changes, so that the extension length of the mold core 7 and the position of the piston plate 16 inside the movable mold 14 change, thereby adjusting the distance between the mold core 7 and the piston plate 16 to produce products with different bottom thicknesses. The nut 21 contacts with the support plate 18, and the threaded rod 20 is located inside the spring 22. A hydraulic oil 24 in contact with the piston member 23 is provided inside the cylinder 19. The hydraulic oil 24 is not only stored in the cylinder 19, but is mainly stored in the rubber bag sleeve 1 6, the rubber bag sleeve 2 12, the rubber bag sleeve 3 15, and the buffer bag sleeve 9. The outer walls of one side of the bottom of the fixed mold 5 and the movable mold 14 are both installed with valves 13 by bolts. There are two types of valves 13, one is a three-way valve and the other is a four-way valve. The four-way valve is installed on the fixed mold 5 with the buffer bag sleeve 9, and the valve 13 is connected to the rubber bag sleeve 1 6, the buffer bag sleeve 9, the rubber bag sleeve 2 12, the rubber bag sleeve 3 15 and the cylinder 19 through pipelines.

[0032] Example 1

[0033] A demoulding mechanism for an injection mold, comprising a fixed mold assembly 1 and a movable mold assembly 2, wherein the fixed mold assembly 1 and the movable mold assembly 2 are combined together, the fixed mold assembly 1 comprises a fixed mold 5, two rubber bag sleeves 6 are installed on one side of the inner wall of the fixed mold 5 by bolts, and a mold core 7 is installed on one end of the two rubber bag sleeves 6 by bolts, a placement groove 10 is opened on the outer wall of one side of the mold core 7, and a top block 11 is slidably inserted in the placement groove 10, a rubber bag sleeve 2 12 is installed on one side of the inner wall of the fixed mold 5 by bolts, and one end of the rubber bag sleeve 2 12 is fixedly connected to the top block 11, and the movable mold assembly 2 comprises a movable mold 14, and the movable mold 14 has a mold core 7 installed on one end of the two rubber bag sleeves 6 by bolts. Three rubber bag sleeves 15 are installed on one side of the wall by bolts, and a piston plate 16 is installed on one end of the three rubber bag sleeves 15 by bolts. When the injection material is injected between the fixed mold 5 and the movable mold 14 of the mold, the injection material will squeeze the piston plate 16 and the mold core 7, so that the piston plate 16 and the mold core 7 are retracted into the deep inside of the movable mold 14 and the fixed mold 5. At the same time, the rubber bag sleeve 16, the rubber bag sleeve 2 12, and the rubber bag sleeve 3 15 will be squeezed, so that the hydraulic oil 24 inside them will flow into the power element 1 3 and the power element 2 4. When demolding, the cylinder connected to the mold can be closed first. The equipment is then operated, and since there is no strong restriction between the fixed mold 5 and the movable mold 14, under the action of the power element 1 3 and the power element 2 4, the hydraulic oil 24 will flow back into the corresponding rubber bag sleeve 1 6, rubber bag sleeve 2 12, and rubber bag sleeve 3 15, so that the rubber bag sleeve 1 6, rubber bag sleeve 2 12, and rubber bag sleeve 3 15 are expanded, thereby pushing off the product sleeved on the mold core 7, so that the product is separated from the fixed mold 5, and the product falls into the movable mold 14. Subsequently, as the rubber bag sleeve 3 15 is expanded, the rubber bag sleeve 3 15 can push out the product inside the movable mold 14 with the piston plate 16, so as to facilitate A worker takes the molded product. A power element 2 4 is installed on the outer wall of one side of the bottom of the fixed mold assembly 1 through bolts, and the power element 2 4 is interconnected with the rubber bag sleeve 1 6 and the rubber bag sleeve 2 12 through a pipeline. A power element 1 3 is provided on the outer wall of one side of the bottom of the movable mold assembly 2. The power element 1 3 and the power element 2 4 can temporarily store the hydraulic oil 24 in the rubber bag sleeve 1 6, the rubber bag sleeve 2 12 and the rubber bag sleeve 3 15, and provide power for the rubber bag sleeve 1 6, the rubber bag sleeve 2 12 and the rubber bag sleeve 3 15 during demolding, and the power element 1 3 is interconnected with the three rubber bag sleeves 3 15 through a pipeline.

[0034] Example 2

[0035] This embodiment is further limited on the basis of the embodiment 1, wherein a slot 8 is provided at one end of the fixed mold 5, and a buffer bag sleeve 9 is provided inside the slot 8. When the mold is closed, the design of the buffer bag sleeve 9 can reduce the impact force caused by the movable mold 14 on the fixed mold 5 during mold closing, and avoid the movable mold 14 and the fixed mold 5 from being greatly reduced in service life due to long-term collision. The buffer bag sleeve 9 is interconnected with the power element 1 3 through a pipeline, and a groove 17 is provided at one end of the movable mold 14, and one end of the buffer bag sleeve 9 is inserted into the groove 17; the power element 1 3 and the power element 2 4 each include two support plates 18, and the four support plates 18 are respectively installed on the outer wall of the bottom of the fixed mold 5 and the movable mold 14 by bolts in a group of two, and a plurality of cylinders 19 are welded between the two support plates 18. , a piston member 23 is slidably inserted inside the cylinder 19, and a spring 22 is installed at one end of the piston member 23 through a bolt. When demolding, since there is no strong restriction between the fixed mold 5 and the movable mold 14, under the action of the spring 22, the piston member 23 will slide inside the cylinder 19 with the threaded rod 20, so that the piston member 23 pushes the hydraulic oil 24 inside the cylinder 19 into the valve 13, and then enters the corresponding rubber bag sleeve 1 6, rubber bag sleeve 2 12, rubber bag sleeve 3 15, and buffer bag sleeve 9 through the valve 13, so that the rubber bag sleeve 1 6, rubber bag sleeve 2 12, rubber bag sleeve 3 15, and buffer bag sleeve 9 are unfolded, thereby pushing off the product sleeved on the mold core 7, so that the product is separated from the fixed mold 5, and the product falls into the movable mold 14. Subsequently, as the rubber bag sleeve 3 15 is unfolded, the rubber bag sleeve 3 15 can carry the piston plate 16 to eject the product inside the movable mold 14. One end of the piston member 23 is threadedly connected to a threaded rod 20 passing through the support plate 18, and the outer surface of the threaded rod 20 is threadedly connected to a nut 21. When the mold is used to produce products with different bottom thicknesses, the nut 21 corresponding to the rubber bag sleeve 1 6 and the rubber bag sleeve 3 15 can be rotated to change the position of the nut 21 on the threaded rod 20, so that the longest sliding distance of the piston member 23 inside the cylinder 19 changes, so that the rebound length of the rubber bag sleeve 1 6 and the rubber bag sleeve 3 15 changes, so that the extension length of the mold core 7 and the position of the piston plate 16 inside the movable mold 14 change, thereby adjusting the distance between the mold core 7 and the piston plate 16. In order to produce products with different bottom thicknesses, the nut 21 is in contact with the support plate 18, the threaded rod 20 is located inside the spring 22, and the cylinder 19 is provided with hydraulic oil 24 in contact with the piston member 23. The hydraulic oil 24 is not only stored in the cylinder 19, but is mainly stored in the rubber bag sleeve 1 6, the rubber bag sleeve 2 12, the rubber bag sleeve 3 15, and the buffer bag sleeve 9. The outer wall of the bottom side of the fixed mold 5 and the movable mold 14 is installed with a valve 13 by bolts. There are two types of valves 13, one is a three-way valve and the other is a four-way valve. The four-way valve is installed on the fixed mold 5 with the buffer bag sleeve 9, and the valve 13 is connected to the rubber bag sleeve 1 6, the buffer bag sleeve 9, the rubber bag sleeve 2 12, the rubber bag sleeve 3 15 and the cylinder 19 through pipelines.

[0036] Working principle: When the mold is closed, the design of the buffer bag sleeve 9 can reduce the impact force of the movable mold 14 on the fixed mold 5 during mold closing, and avoid the movable mold 14 and the fixed mold 5 from colliding for a long time, which greatly reduces the service life of the mold. The hydraulic oil 24 inside the buffer bag sleeve 9 will flow into one of the cylinders 19. When the injection molding material is subsequently injected between the closed fixed mold 5 and the movable mold 14, the injection molding material will squeeze the piston plate 16 and the mold core 7, so that the piston plate 16 and the mold core 7 retract into the deep inside of the movable mold 14 and the fixed mold 5. At the same time, the rubber bag sleeve 1 6, the rubber bag sleeve 2 12, and the rubber bag sleeve 3 15 will be squeezed, so that the hydraulic oil 24 inside them will flow into the corresponding cylinder 19. When demolding, the cylinder and other equipment connected to the mold can be closed first, and then due to There is no strong restriction between the fixed mold 5 and the movable mold 14. Under the action of the spring 22, the piston member 23 will slide inside the cylinder 19 with the threaded rod 20, so that the piston member 23 pushes the hydraulic oil 24 inside the cylinder 19 into the valve 13, and then enters the corresponding rubber bag sleeve 1 6, rubber bag sleeve 2 12, rubber bag sleeve 3 15, and buffer bag sleeve 9 through the valve 13, so that the rubber bag sleeve 1 6, rubber bag sleeve 2 12, rubber bag sleeve 3 15, and buffer bag sleeve 9 are expanded, thereby pushing off the product on the mold core 7, so that the product is separated from the fixed mold 5, and the product falls into the movable mold 14. Subsequently, as the rubber bag sleeve 3 15 is expanded, the rubber bag sleeve 3 15 can push out the product inside the movable mold 14 with the piston plate 16, so that the workers can take the formed products.

[0037] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A demoulding mechanism for an injection mold, comprising a fixed mold assembly (1) and a movable mold assembly (2), characterized in that: The fixed mold assembly (1) and the movable mold assembly (2) are combined together, and the fixed mold assembly (1) comprises a fixed mold (5), and two rubber bag sleeves (6) are installed on one side of the inner wall of the fixed mold (5) by bolts, and one end of the two rubber bag sleeves (6) is installed with a mold core (7) by bolts, and an outer wall of one side of the mold core (7) is provided with a placement groove (10), and a top block (11) is slidably inserted in the placement groove (10), and a rubber bag sleeve (2) (12) is installed on one side of the inner wall of the fixed mold (5) by bolts, and one end of the rubber bag sleeve (2) (12) is fixedly connected to the top block (11), and the movable mold assembly The component (2) comprises a movable mold (14), one side of the inner wall of the movable mold (14) is installed with three rubber bag sleeves (15) by bolts, and one end of the three rubber bag sleeves (15) is installed with a piston plate (16) by bolts, the outer wall of the bottom side of the fixed mold component (1) is installed with a power element (4) by bolts, and the power element (4) is connected to the rubber bag sleeve (6) and the rubber bag sleeve (12) by pipelines, and the outer wall of the bottom side of the movable mold component (2) is provided with a power element (3), and the power element (3) is connected to the three rubber bag sleeves (15) by pipelines.

2. The demoulding mechanism of an injection mold according to claim 1, characterized in that: A slot (8) is provided at one end of the fixed mold (5), and a buffer bag sleeve (9) is provided inside the slot (8). The buffer bag sleeve (9) is communicated with the power element 1 (3) through a pipeline.

3. The demoulding mechanism of an injection mold according to claim 2, characterized in that: A groove (17) is formed at one end of the movable mold (14), and one end of the buffer bag sleeve (9) is inserted into the groove (17).

4. The demoulding mechanism of an injection mold according to claim 2, characterized in that: The power element 1 (3) and the power element 2 (4) each include two support plates (18), and the four support plates (18) are respectively mounted on the outer walls of the bottom of the fixed mold (5) and the movable mold (14) in groups of two by bolts.

5. The demoulding mechanism of an injection mold according to claim 4, characterized in that: A plurality of cylinders (19) are welded between the two support plates (18), a piston (23) is slidably inserted inside the cylinder (19), and a spring (22) is installed at one end of the piston (23) via a bolt.

6. The demoulding mechanism of an injection mold according to claim 5, characterized in that: One end of the piston member (23) is threadedly connected to a threaded rod (20) passing through the support plate (18), and the outer portion of the threaded rod (20) is threadedly connected to a nut (21), the nut (21) and the support plate (18) are in contact with each other, and the threaded rod (20) is located inside the spring (22).

7. The demoulding mechanism of an injection mold according to claim 5, characterized in that: The cylinder (19) is provided with hydraulic oil (24) in contact with the piston member (23). The outer walls of the bottom side of the fixed mold (5) and the movable mold (14) are both provided with valves (13) by bolts, and the valves (13) are respectively connected with the rubber bag sleeve 1 (6), the buffer bag sleeve (9), the rubber bag sleeve 2 (12), the rubber bag sleeve 3 (15) and the cylinder (19) through pipelines.

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