A double-slider mold ejection mechanism

Abstract

The present invention relates to the technical field of injection molds, and specifically discloses a double-slider mold ejection mechanism, including a fixed mold and a movable mold installed on a mold frame, a first mold core installed inside the fixed mold, a second mold core installed inside the movable mold, a first slider slidably connected to the fixed mold, and the first slider is located between the first mold core and the second mold core; a linkage member for driving the first slider to slide is provided on the movable mold; and a power assembly is provided between the movable mold and the mold frame. In the mold opening stroke of the movable mold and the fixed mold, the first slider is made to slide out between the first mold core and the second mold core through the linkage member. At this moment, there is no need to separately set a driving source to drive the first slider to slide out, so the working efficiency of the injection mold can be greatly improved. At the same time, the sliding of the first slider is realized in the mold opening stroke, and there is no need to separately operate the mold opening and the sliding of the first slider, which can save costs and improve the working efficiency of the entire injection mold.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to a double-slider mold ejection mechanism. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. In short, molds are tools used to shape objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of objects by changing the physical state of the molded material, and is known as the "mother of industry".

[0003] Plastic molds are tools used in the plastic processing industry to match plastic molding machines and give plastic products a complete configuration and precise size. Due to the wide variety of plastics and processing methods, the structures of plastic molding machines and plastic products vary in complexity, and the types and structures of plastic molds are also diverse. Plastic molds are a tool for producing plastic products. They are composed of several groups of parts, and this combination contains a molding cavity.

[0004] During injection molding, the mold is clamped on the injection molding machine, the molten plastic is injected into the molding cavity, and cooled and shaped in the cavity, then the upper and lower molds are separated, and the product is ejected from the mold cavity by the ejection system, and finally the mold is closed for the next injection molding. The entire injection molding process is cyclic. There are many types of molds. According to the processing object and processing technology, they can be divided into: molds for processing metals, molds for processing non-metals and powder metallurgy, including plastic molds (such as two-color molds, compression molds and extrusion molds, etc.), rubber molds and powder metallurgy molds, etc. According to the structural characteristics, the mold can be divided into flat punching molds and cavity molds with space. The mold is generally a single piece and small batch production.

[0005] For example, the Chinese patent with application number 201920111111.8, authorization announcement number CN209599742U, and name "A kind of injection mold slider ejection mechanism", discloses an injection mold slider ejection mechanism, including a movable template, a slider, an ejector plate and an ejector block mechanism, the slider includes a lower slider and an upper slider fixedly connected to the lower slider, the lower slider is provided with a guide block, and the ejector plate is provided with an ejector and a forced reset block; the ejector plate is located between the lower slider and the upper slider, and the forced reset block is abutted against the movable template at one end away from the ejector plate, so that a set distance h is provided between the ejector plate and the upper slider; the ejector block mechanism is arranged on the movable template; the guide block is clamped in the ejector block mechanism, so that the ejector block mechanism is abutted against the ejector plate.

[0006] In the above patents, the separation of the slider and the product and the ejector pin and the product is completed by the cooperation of the guide block and the ejector block mechanism, avoiding direct separation of the slider and the product and causing damage to the product. In the prior art such as the above patents, when the product needs to be demolded after injection molding and cooling, since the slider is located inside the mold core, before demolding the product, the slider needs to be slid out of the sliding mold core where it is located. The operation method in the prior art drives the movable mold and the fixed mold to open the mold, and then uses an additional drive member to slide the slider out of the sliding mold core where it is located, which is not only complicated to operate, but also increases production costs. Summary of the invention

[0007] The object of the present invention is to provide a double-slider mold ejection mechanism to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-slider mold ejection mechanism, comprising a fixed mold and a movable mold installed on a mold frame, a first mold core installed inside the fixed mold, a second mold core installed inside the movable mold, a first slider slidably connected to the fixed mold, and the first slider is located between the first mold core and the second mold core; a linkage member for driving the first slider to slide is provided on the movable mold; and a power component is provided between the movable mold and the mold frame, which is used to drive the movable mold to slide on the mold frame to realize mold opening and mold closing between the movable mold and the fixed mold; when the power component drives the movable mold to slide inside the mold frame to open the mold, the first slider is driven to slide out of the area where it is located through the linkage member.

[0009] Furthermore, the linkage member comprises an inclined guide column mounted on the movable mold, an inclined guide groove is provided on the first sliding block, and the inclined guide column is mounted in the inclined guide groove.

[0010] Furthermore, a second slider is installed on the movable mold, and a reset member is arranged between the second slider and the movable mold; a shovel is arranged on the fixed mold, and an adaptation groove adapted to the shovel is opened on the fixed mold. When the movable mold and the fixed mold are closed, the second slider is driven by the shovel to slide toward the inside of the first slider.

[0011] Furthermore, the reset member includes a limit block fixedly connected to the second slider, a limit groove matched with the limit block is opened on the movable mold, the limit block is slidably connected in the limit groove, and a reset spring is arranged between the limit block and the limit groove.

[0012] Furthermore, a bottom plate is provided at the bottom of the movable mold, the power cylinder includes a power frame fixedly connected to the bottom plate, and a power cylinder for driving the power frame to slide is provided on the mold frame.

[0013] Furthermore, an ejector assembly is provided on the movable mold; the ejector assembly includes an ejector plate installed on the movable mold, and multiple groups of ejectors are provided on the ejector plate; multiple groups of buffer springs are provided between the positioning plate and the power frame, and an installation unit is provided between the mold frame and the ejector plate.

[0014] Furthermore, the installation unit comprises a positioning plate, the positioning plate is in the mold frame via a protrusion, the positioning plate is connected to the ejector plate via a connecting rod, and the connecting rod is slidably connected to the bottom plate.

[0015] Furthermore, the power frame is slidably connected to the mold frame via a limit bar.

[0016] Furthermore, a positioning member is provided between the mold frame and the power frame; the positioning member includes a positioning block, and the positioning block is installed on the mold frame through an elastic member; a positioning groove adapted to the positioning block is opened on the power frame, and the elastic force of the elastic member drives the positioning block to be clamped in the positioning groove.

[0017] Furthermore, the elastic member includes a sleeve fixedly connected to the mold frame, a sliding rod is fixedly connected to the positioning block, the sliding rod is slidably connected in the sleeve, and a pressure spring is arranged between the sliding rod and the sleeve.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the double-slider mold ejection mechanism, during the actual use of the injection mold, after the product in the injection mold is injection molded, a power component will be used to drive the movable mold and the fixed mold to separate, so as to realize the mold opening of the fixed mold and the movable mold; during the mold opening stroke of the movable mold and the fixed mold, the first slider is made to slide out between the first mold core and the second mold core through a linkage part, and at this moment, there is no need to set a separate driving source to drive the first slider to slide out, thereby greatly improving the working efficiency of the injection mold, and at the same time, the sliding of the first slider is realized during the mold opening stroke, and there is no need to separate the mold opening and the sliding of the first slider, which can save costs and improve the working efficiency of the entire injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A partial front view schematic diagram provided for an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the overall top view structure provided by an embodiment of the present invention;

[0022] Figure 3A structural schematic diagram of a movable mold installation method provided in an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of the structure of the power cylinder and the movable mold installation method provided in an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of the installation position structure of the positioning member provided in an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of the structure of the positioning plate installation method provided in an embodiment of the present invention;

[0026] Figure 7 A front view of a power assembly provided by an embodiment of the present invention;

[0027] Figure 8 A top view of a power assembly provided by an embodiment of the present invention;

[0028] Fig. 9 for Figure 8 Schematic diagram of the AA section structure along the middle edge;

[0029] Fig.10 A schematic diagram of the structure of the bump installation method provided in an embodiment of the present invention;

[0030] Fig.11 A schematic diagram of the structure of the positioning member in the exploded state provided by an embodiment of the present invention.

[0031] Explanation of the reference numerals: 1. mold frame; 2. fixed mold; 3. movable mold; 4. bottom plate; 5. power cylinder; 6. power frame; 7. ejector plate; 8. positioning plate; 9. connecting rod; 10. first mold core; 11. second mold core; 12. first slide block; 13. inclined guide column; 14. second slide block; 15. shovel; 16. bump; 17. buffer spring; 18. limit strip; 19. positioning groove; 20. positioning block; 21. elastic member; 211. sleeve; 212. slide bar; 213. pressure spring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 11The present invention provides a technical solution: a double-slider mold ejection mechanism, comprising a fixed mold 2 and a movable mold 3 installed on a mold frame 1, a first mold core 10 is installed inside the fixed mold 2, a second mold core 11 is installed inside the movable mold 3, a first slider 12 is slidably connected to the fixed mold 2, and the first slider 12 is located between the first mold core 10 and the second mold core 11; a linkage member for driving the first slider 12 to slide is provided on the movable mold 3; and a power component is provided between the movable mold 3 and the mold frame 1, for driving the movable mold 3 to slide on the mold frame 1, so as to realize mold opening and mold closing between the movable mold 3 and the fixed mold 2; when the power component drives the movable mold 3 to slide inside the mold frame 1 to open the mold, the first slider 12 is driven to slide out of the area where it is located through the linkage member.

[0034] Specifically, the double-slider mold ejection mechanism includes a fixed mold 2 and a movable mold 3 installed on a mold frame 1, a first mold core 10 is installed inside the fixed mold 2, and a second mold core 11 is installed inside the movable mold 3. Specifically, the first mold core 10 and the second mold core 11 can meet the injection molding needs of the entire workpiece. A first slider 12 is slidably connected to the fixed mold 2, and the first slider 12 is located between the first mold core 10 and the second mold core 11, which is convenient for injection molding of the workpiece. At the same time, a linkage member for driving the first slider 12 to slide is provided on the movable mold 3, so as to facilitate driving the first slider 12 to slide out of a predetermined area, and the use effect is better. A power component is provided between the movable mold 3 and the mold frame 1, which is used to drive the movable mold 3 to slide on the mold frame 1, so as to realize the opening and closing of the mold between the movable mold 3 and the fixed mold 2; when the power component drives the movable mold 3 to slide inside the mold frame 1 to open the mold, the first slider 12 is driven to slide out of the area where it is located through the linkage member. Therefore, during use, after the product in the injection mold is injection molded, the power component will be used to drive the movable mold 3 to separate from the fixed mold 2, so as to realize the mold opening of the fixed mold 2 and the movable mold 3; during the mold opening stroke of the movable mold 3 and the fixed mold 2, the first slider 12 is made to slide out between the first mold core 10 and the second mold core 11 through the linkage parts. At this moment, there is no need to set a separate driving source to drive the first slider 12 to slide out, so the working efficiency of the injection mold can be greatly improved. At the same time, the sliding of the first slider 12 is realized in the mold opening stroke, and there is no need to separate the mold opening and the sliding of the first slider 12. It can save costs and improve the working efficiency of the entire injection mold.

[0035] In the embodiment provided by the present invention, the linkage part includes an inclined guide column 13 installed on the movable mold 3, an inclined guide groove is opened on the first slider 12, and the inclined guide column 13 is installed in the inclined guide groove. Therefore, when the inclined guide column 13 moves, the first slider 12 will be driven to slide through the cooperation between the inclined guide groove and the inclined guide column 13 to meet the working needs.

[0036] In the embodiment provided by the present invention, a second slider 14 is installed on the movable mold 3, and a reset member is arranged between the second slider 14 and the movable mold 3; a shovel 15 is arranged on the fixed mold 2, and an adaption groove adapted to the shovel 15 is provided on the fixed mold 2. When the movable mold 3 and the fixed mold 2 are molded, the second slider 14 is driven to slide inside the first slider 12 by the shovel 15. The reset member includes a limit block fixedly connected to the second slider 14, a limit groove adapted to the limit block is provided on the movable mold 3, the limit block is slidably connected in the limit groove, and a reset spring is arranged between the limit block and the limit groove. Therefore, when the movable mold 3 and the fixed mold 2 are molded, the second slider 14 can be driven to be located at a predetermined position by the shovel 15, so as to meet the injection molding needs of the entire injection mold. After the injection molding of the product is completed, when the movable mold 3 and the fixed mold 2 are opened, the shovel 15 will contact the restriction on the second slider 14, and the elastic force of the reset spring at this moment drives the second slider 14 to slide out, and the effect is better.

[0037] In the embodiment provided by the present invention, a base plate 4 is provided at the bottom of the movable mold 3, the power cylinder 5 includes a power frame 6 fixedly connected to the base plate 4, and a power cylinder 5 for driving the power frame 6 to slide is provided on the mold frame 1. When in use, the power frame 6 is driven to slide by the power cylinder 5, which can drive the movable mold 3 to slide, thereby meeting working needs.

[0038] In the embodiment provided by the present invention, an ejector assembly is provided on the movable mold 3; the ejector assembly includes an ejector plate 7 installed on the movable mold 3, and multiple groups of ejectors are provided on the ejector plate 7; multiple groups of buffer springs 17 are provided between the positioning plate 8 and the power frame 6, and an installation unit is provided between the mold frame 1 and the ejector plate 7, and the installation unit includes a positioning plate 8, the positioning plate 8 is in the mold frame 1 through a protrusion 16, and the positioning plate 8 and the ejector plate 7 are connected by a connecting rod 9, and the connecting rod 9 is slidably connected to the bottom plate 4. When the power cylinder 5 drives the power frame 6 to slide, which can drive the movable mold 3 to slide, the ejector plate 7 at this moment will not slide, so that the product can be ejected through the ejector plate 7.

[0039] In the embodiment provided by the present invention, the power frame 6 is slidably connected to the mold frame 1 through the limit strip 18, thereby improving the stability of the power frame 6 when sliding vertically.

[0040] In the embodiment provided by the present invention, a positioning member is also provided between the mold frame 1 and the power frame 6. By providing the positioning member, the stability of the movable mold 3 during installation can be improved. In the mold opening stroke, the power cylinder 5 drives the driving frame to slide into the mold frame 1 until the positioning member is located, and the power frame 6 is restricted by the positioning member. At this moment, the supporting force of the entire movable mold 3 is not entirely dependent on the power cylinder 5, and the supporting force of the power cylinder 5 can be reduced. When the mold needs to be closed, the power cylinder 5 at this moment drives the movable mold 3 and the fixed mold 2 to close the mold under the restriction of the positioning member to meet the working needs. The positioning member includes a positioning block 20, and the positioning block 20 is installed on the mold frame 1 through an elastic member 21; a positioning groove 19 adapted to the positioning block 20 is provided on the power frame 6, and the elastic force of the elastic member 21 drives the positioning block 20 to be clamped in the positioning groove 19. Specifically, the upper and lower sides of the positioning block 20 are provided with a wedge shape, and the use effect is better.

[0041] In the embodiment provided by the present invention, the elastic member 21 includes a sleeve 211 fixedly connected to the mold frame 1, a sliding rod 212 is fixedly connected to the positioning block 20, the sliding rod 212 is slidably connected in the sleeve 211, and a pressure spring 213 is arranged between the sliding rod 212 and the sleeve 211.

[0042] It should be noted that the electrical equipment involved in this application can be powered by batteries or external power supply.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-slider mold ejection mechanism, comprising a fixed mold (2) and a movable mold (3) mounted on a mold frame (1), wherein a first mold core (10) is mounted inside the fixed mold (2), and a second mold core (11) is mounted inside the movable mold (3), characterized in that: A first sliding block (12) is slidably connected to the fixed mold (2), and the first sliding block (12) is located between the first mold core (10) and the second mold core (11); The movable mold (3) is provided with a linkage member for driving the first slider (12) to slide; A power assembly is provided between the movable mold (3) and the mold frame (1) for driving the movable mold (3) to slide on the mold frame (1) so as to realize mold opening and mold closing between the movable mold (3) and the fixed mold (2); When the power component drives the movable mold (3) to slide inside the mold frame (1) to open the mold, the first sliding block (12) is driven to slide out of the area where it is located through the linkage member.

2. A double-slider mold ejection mechanism according to claim 1, characterized in that: The linkage member comprises an inclined guide column (13) mounted on the movable mold (3); an inclined guide groove is provided on the first sliding block (12); and the inclined guide column (13) is mounted in the inclined guide groove.

3. A double-slider mold ejection mechanism according to claim 1, characterized in that: A second slider (14) is mounted on the movable mold (3), and a reset member is provided between the second slider (14) and the movable mold (3); The fixed mold (2) is provided with a shovel (15), and the fixed mold (2) is provided with an adaption groove adapted to the shovel (15). When the movable mold (3) and the fixed mold (2) are closed, the shovel (15) drives the second slider (14) to slide toward the inside of the first slider (12).

4. A double-slider mold ejection mechanism according to claim 3, characterized in that: The reset member comprises a limit block fixedly connected to the second slider (14); a limit groove matched with the limit block is provided on the movable mold (3); the limit block is slidably connected in the limit groove; and a reset spring is provided between the limit block and the limit groove.

5. The double-slider mold ejection mechanism according to claim 1, characterized in that: A bottom plate (4) is arranged at the bottom of the movable mold (3); the power cylinder (5) comprises a power frame (6) fixedly connected to the bottom plate (4); and a power cylinder (5) for driving the power frame (6) to slide is arranged on the mold frame (1).

6. A double-slider mold ejection mechanism according to claim 5, characterized in that: The movable mold (3) is provided with an ejector assembly; the ejector assembly comprises an ejector plate (7) mounted on the movable mold (3), and a plurality of groups of ejectors are arranged on the ejector plate (7); a plurality of groups of buffer springs (17) are arranged between the positioning plate (8) and the power frame (6), and a mounting unit is arranged between the mold frame (1) and the ejector plate (7).

7. A double-slider mold ejection mechanism according to claim 6, characterized in that: The installation unit comprises a positioning plate (8), wherein the positioning plate (8) is located in the mold frame (1) via a protrusion (16), and the positioning plate (8) is connected to the ejector plate (7) via a connecting rod (9), and the connecting rod (9) is slidably connected to the bottom plate (4).

8. A double-slider mold ejection mechanism according to claim 7, characterized in that: The power frame (6) is slidably connected to the mold frame (1) via a limit strip (18).

9. A double-slider mold ejection mechanism according to claim 5, characterized in that: A positioning member is also provided between the mold frame (1) and the power frame (6); the positioning member comprises a positioning block (20), and the positioning block (20) is mounted on the mold frame (1) via an elastic member (21); a positioning groove (19) adapted to the positioning block (20) is provided on the power frame (6), and the elastic force of the elastic member (21) drives the positioning block (20) to be clamped in the positioning groove (19).

10. A double-slider mold ejection mechanism according to claim 9, characterized in that: The elastic member (21) comprises a sleeve (211) fixedly connected to the mold frame (1); a sliding rod (212) is fixedly connected to the positioning block (20); the sliding rod (212) is slidably connected in the sleeve (211); and a pressure spring (213) is provided between the sliding rod (212) and the sleeve (211).

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