Precise electronic product mold

Abstract

The utility model discloses a precise electronic product mould, which belongs to the technical field of moulds and comprises a base, a top plate is arranged at the top of the base, a split bottom mould is slidably mounted at the top of the base, a top mould is arranged above the bottom mould, and a lifting oil cylinder is fixedly mounted at the top of the top plate. The telescopic end of the lifting oil cylinder penetrates through the top plate and extends to the position below the top plate to be fixedly connected with the top of the top die, and a transmission assembly is installed between the top die and the bottom die. Through the arrangement of the transmission assembly, when the top mold moves downwards, the first split mold and the second split mold can be driven to be assembled to form a finished bottom mold, after injection molding is finished, the top mold moves upwards, and at the moment, the first split mold and the second split mold can be separated under the driving of the transmission assembly; through the arrangement of the auxiliary demolding device, the auxiliary demolding device has the advantage that auxiliary demolding can be reliably carried out on the formed product.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a precision electronic product mold. Background Art

[0002] Injection molding is a molding process that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automation of operation, a variety of flower patterns and varieties, the shape can be from simple to complex, the size can be from large to small, and the product size is accurate. Injection molds are also used in the production of precision electronic products.

[0003] A Chinese patent with the publication number of CN220517424U discloses an injection mold for precision structural parts of electronic products, belonging to the technical field of precision part injection molds, including a mold base, a bottom mold, a connecting frame, a hydraulic pump and a pressing mold. A mold cavity is opened at the top of the bottom mold. An inner groove body is arranged inside the mold base near the lower part of the bottom mold, and a moving plate is arranged to move up and down inside the inner groove body. Through holes are penetrated and opened at opposite sides of the top of the bottom mold near the opening of the mold cavity. Pressing plates are fixedly connected to positions of the bottom of the pressing mold opposite to the through holes, and the pressing plates are adaptively inserted into the through holes. A spring is fixedly connected between the bottom of the moving plate and the inner groove wall of the bottom of the mold base; the demoulding push plate of the utility model inserts the pressing plate into the through hole, then pushes the moving plate downward to drive the push plate to move downward, and at the same time squeezes the spring to contract. After injection molding is completed, when the upper and lower molds are separated, when the moving plate is not pressed, the spring can rebound to push the push plate to demould the injection-molded precision part, and manual intervention is not required during the process, improving the efficiency of injection production and demoulding.

[0004] For the injection mold involved in the above patent, during demoulding, the injection-molded product is demoulded by the push plate moving upward. However, during the product forming process, the molten plastic solution may flow into the gap between the push plate and the card slot, resulting in the possibility that the push plate and the card slot solidify together during cooling and forming, so that the push plate cannot move upward to achieve the demoulding function, and the practical reliability is poor. Therefore, we need to propose a precision electronic product mold. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a precision electronic product mold, which has the advantage of being able to assist in demoulding the formed product more reliably, so as to solve the problems raised in the above background art.

[0006] To achieve the above-mentioned purpose, the utility model provides a precision electronic product mold, including a base, a top plate is arranged on the top of the base, a split-design bottom mold is slidably installed on the top of the base, a top mold is arranged above the bottom mold, a lifting cylinder is fixedly installed on the top of the top plate, the telescopic end of the lifting cylinder passes through the top plate and extends to the bottom of the top plate and is fixedly connected to the top of the top mold, a transmission assembly is installed between the top mold and the bottom mold, and the top mold drives the bottom mold to split or close the mold through the transmission assembly when moving.

[0007] Preferably, the transmission assembly includes a first tooth plate fixedly mounted on the front and rear sides of the top mold, a connecting plate fixedly mounted on the bottom of the bottom mold, the bottom of the connecting plate passes through the base and extends to the bottom of the base where a second tooth plate is fixedly mounted, and the first tooth plate and the second tooth plate are connected via a gear set.

[0008] Preferably, the gear group includes two groups of fixed plates fixedly installed on the bottom of the base, and a rotating shaft is rotatably installed on the inner side of the two groups of fixed plates. Two groups of first gears meshing with the first tooth plate are fixedly installed on the surface of the rotating shaft, and a second gear meshing with the second tooth plate is installed on the surface of the rotating shaft and located on the inner side of the two groups of the first gears.

[0009] Preferably, a movable groove is provided on the surface of the base at a position corresponding to the connecting plate, and the surface of the connecting plate is slidably connected to the inner wall of the movable groove.

[0010] Preferably, the bottom mold includes a first split mold and a second split mold, the bottoms of the first split mold and the second split mold are both slidably connected to the top of the base, and the bottoms of the first split mold and the second split mold are respectively fixedly connected to the tops of the corresponding connecting plates, one side of the first split mold is connected to an injection tube, and a sealing assembly is also provided between the first split mold and the second split mold.

[0011] Preferably, the sealing assembly includes a sealing gasket fixedly mounted on one side of the second split mold, a sealing groove is provided on one side of the first split mold at a position corresponding to the sealing gasket, and a surface of the sealing gasket is in contact with an inner wall of the sealing groove.

[0012] Preferably, support rods are fixedly installed at the four corners of the top of the base, and the top of the support rods is fixedly connected to the bottom of the top plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] Through the arrangement of the transmission component, when the top mold moves downward, it will drive the first split mold and the second split mold to close the mold to form a complete bottom mold. After the injection molding is completed, the top mold moves upward. At this time, driven by the transmission component, the first split mold and the second split mold will separate, thereby exposing the molded product and achieving the purpose of assisting demolding. Through the setting of this device, it has the advantage of being able to assist in demolding the molded product more reliably. Brief Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the product demolding state of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the transmission component of the present utility model;

[0018] Figure 4 is a schematic structural diagram of the sealing component of the present utility model.

[0019] In the figure: 1, base; 2, top plate; 3, bottom mold; 4, top mold; 5, lifting oil cylinder; 6, first toothed plate; 7, connecting plate; 8, second toothed plate; 9, fixing plate; 10, rotating shaft; 11, first gear; 12, second gear; 13, moving groove; 14, first split mold; 15, second split mold; 16, injection pipe; 17, sealing gasket; 18, sealing groove; 19, support rod. Specific Embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4 , the present utility model provides a precision electronic product mold, including a base 1. A top plate 2 is arranged on the top of the base 1. Support rods 19 are fixedly installed at the four corners of the top of the base 1. The top of the support rods 19 is fixedly connected to the bottom of the top plate 2. The main frame of the device is constituted by the base 1, the support rods 19 and the top plate 2 in this device.

[0022] Preferably, a split bottom mold 3 is slidably installed on the top of the base 1, a top mold 4 is arranged above the bottom mold 3, a lifting cylinder 5 is fixedly installed on the top of the top plate 2, the telescopic end of the lifting cylinder 5 passes through the top plate 2 and extends to the bottom of the top plate 2 and is fixedly connected to the top of the top mold 4, a transmission assembly is installed between the top mold 4 and the bottom mold 3, and the top mold 4 drives the bottom mold 3 to split or close the mold through the transmission assembly when moving, and the transmission assembly includes a first tooth plate 6 fixedly installed on the front and rear sides of the top mold 4, and a connecting rod is fixedly installed on the bottom of the bottom mold 3. Plate 7, the bottom of the connecting plate 7 passes through the base 1 and extends to the bottom of the base 1, where a second tooth plate 8 is fixedly installed. The first tooth plate 6 and the second tooth plate 8 are connected through a gear set. The gear set includes two groups of fixed plates 9 fixedly installed on the bottom of the base 1, and a rotating shaft 10 is rotatably installed on the inner side of the two groups of fixed plates 9. Two groups of first gears 11 meshing with the first tooth plate 6 are fixedly installed on the surface of the rotating shaft 10. A second gear 12 meshing with the second tooth plate 8 is installed on the surface of the rotating shaft 10 and located on the inner side of the two groups of first gears 11.

[0023] By setting the transmission component, the top mold 4 and the bottom mold 3 can be connected together. During injection molding, the user can use the lifting cylinder 5 to drive the top mold 4 to move downward and close the mold with the bottom mold 3. When it moves, it will drive the first gear 11 to rotate through the first tooth plate 6. The rotation of the first gear 11 will drive the second gear 12 to rotate through the rotating shaft 10, and then drive the second tooth plate 8 to move. The movement of the second tooth plate 8 will drive the first split mold 14 and the second split mold 15 to move and close the mold through the connecting plate 7, so that the bottom mold 3 and the top mold 4 are closed together, and injection molding can be carried out at this time.

[0024] After the product is injection molded, the top mold 4 is driven to move upward by the lifting cylinder 5. Similarly, when it moves, it will drive the first gear 11 to rotate through the first tooth plate 6. The rotation of the first gear 11 will drive the second gear 12 to rotate through the rotating shaft 10, and then drive the second tooth plate 8 to move. The movement of the second tooth plate 8 will drive the first split mold 14 and the second split mold 15 to move and separate through the connecting plate 7, exposing the injection molded product to achieve the purpose of auxiliary demolding.

[0025] A movable groove 13 is provided on the surface of the base 1 at a position corresponding to the connecting plate 7 , and the surface of the connecting plate 7 is slidably connected to the inner wall of the movable groove 13 . The setting of the movable groove 13 can provide a movable space for the connecting plate 7 .

[0026] It should be noted that the bottom mold 3 includes a first split mold 14 and a second split mold 15. The bottoms of the first split mold 14 and the second split mold 15 are both slidably connected to the top of the base 1, and the bottoms of the first split mold 14 and the second split mold 15 are respectively fixedly connected to the tops of the corresponding connecting plates 7. An injection pipe 16 is communicated with one side of the first split mold 14. In this embodiment, the bottom mold 3 is composed of the first split mold 14 and the second split mold 15, which is movably arranged and can be opened for demolding or closed for molding. When the bottom mold 3 and the top mold 4 are closed for molding, molten plastic can be injected into the mold cavity between the bottom mold 3 and the top mold 4 through the injection pipe 16.

[0027] Furthermore, a sealing component is also arranged between the first split mold 14 and the second split mold 15. The sealing component includes a sealing gasket 17 fixedly installed on one side of the second split mold 15. A sealing groove 18 is formed on one side of the first split mold 14 corresponding to the sealing gasket 17. The surface of the sealing gasket 17 is attached to the inner wall of the sealing groove 18. Through the arrangement of the sealing component, when the first split mold 14 and the second split mold 15 are closed for molding, the sealing gasket 17 will be stuck into the inner cavity of the sealing groove 18 to improve the sealing performance of the bottom mold 3.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Precision electronic product mold, including a base (1), wherein a top plate (2) is arranged on the top of the base (1), and it is characterized in that: A split bottom mold (3) is slidably mounted on the top of the base (1), a top mold (4) is arranged above the bottom mold (3), a lifting cylinder (5) is fixedly mounted on the top of the top plate (2), a telescopic end of the lifting cylinder (5) passes through the top plate (2) and extends to the bottom of the top plate (2) and is fixedly connected to the top of the top mold (4), a transmission assembly is installed between the top mold (4) and the bottom mold (3), and when the top mold (4) moves, it drives the bottom mold (3) to split or close the mold through the transmission assembly.

2. The precision electronic product mold according to claim 1, wherein: The transmission assembly comprises a first tooth plate (6) fixedly mounted on the front and rear sides of the top mold (4); a connecting plate (7) is fixedly mounted on the bottom of the bottom mold (3); the bottom of the connecting plate (7) passes through the base (1) and extends to the bottom of the base (1) where a second tooth plate (8) is fixedly mounted; the first tooth plate (6) and the second tooth plate (8) are connected to each other through a gear train.

3. The precision electronic product mold according to claim 2, characterized in that: The gear set comprises two groups of fixed plates (9) fixedly mounted on the bottom of the base (1); a rotating shaft (10) is rotatably mounted on the inner side of the two groups of fixed plates (9); two groups of first gears (11) meshing with the first toothed plate (6) are fixedly mounted on the surface of the rotating shaft (10); and a second gear (12) meshing with the second toothed plate (8) is mounted on the surface of the rotating shaft (10) and located on the inner side of the two groups of first gears (11).

4. The precision electronic product mold according to claim 2, wherein: A movable groove (13) is provided on the surface of the base (1) at a position corresponding to the connecting plate (7), and the surface of the connecting plate (7) is slidably connected to the inner wall of the movable groove (13).

5. The precision electronic product mold according to claim 2, wherein: The bottom mold (3) comprises a first split mold (14) and a second split mold (15); the bottoms of the first split mold (14) and the second split mold (15) are both slidably connected to the top of the base (1); the bottoms of the first split mold (14) and the second split mold (15) are respectively fixedly connected to the tops of the corresponding connecting plates (7); one side of the first split mold (14) is connected to an injection molding pipe (16); and a sealing component is also provided between the first split mold (14) and the second split mold (15).

6. The precision electronic product mold according to claim 5, characterized in that: The sealing assembly comprises a sealing gasket (17) fixedly mounted on one side of the second split mold (15); a sealing groove (18) is provided on one side of the first split mold (14) at a position corresponding to the sealing gasket (17); and a surface of the sealing gasket (17) is in contact with an inner wall of the sealing groove (18).

7. The precision electronic product mold according to claim 1, characterized in that: Support rods (19) are fixedly mounted at the four corners of the top of the base (1), and the top of the support rod (19) is fixedly connected to the bottom of the top plate (2).

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