Support powder metallurgy die sharing hot runner

Abstract

The utility model discloses a support powder metallurgy die sharing a hot runner, which belongs to the technical field of powder metallurgy dies and comprises a bottom plate and a panel, a feeding hopper is arranged on the panel, the hot runner is arranged at the bottom of the panel, a front die is connected to the bottom of the hot runner, and a rear die is arranged at the bottom of the front die. One side of the front mold is communicated with an upper liquid inlet pipe and an upper liquid outlet pipe, one side of the rear mold is communicated with a lower liquid inlet pipe and a lower liquid outlet pipe, the bottom of one side of the rear mold is further communicated with a bottom liquid inlet pipe and a bottom liquid outlet pipe, a bottom mold core is further arranged in the rear mold, and a part of the bottom liquid inlet pipe is located in the bottom mold core. By arranging the bottom die core, the bottom liquid inlet pipe and the bottom liquid outlet pipe, the cooling efficiency of products in the forming cavity can be improved, then the production efficiency of the products is improved, then the products with different thicknesses can be produced by replacing adjusting blocks with different lengths, and then the using effect of the die is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder metallurgy molds, in particular to a bracket powder metallurgy mold with a shared hot runner. Background Art

[0002] In the metal powder processing industry, with the continuous development of hot runner technology and powder injection molding technology, it has been widely used in hardware, molds, and injection molding in electrical appliances and other industrial fields. The application of hot runner technology can greatly reduce the generation of runner waste, effectively improve the product yield and production efficiency, reduce the formation of injection defects and injection deformation, and greatly improve the stability of the metal powder injection molding process, so as to facilitate automated mass production, improve production efficiency and reduce production costs. The shape and internal structure of the original metal bracket are all machined and formed by metal stamping according to conventional processes, but the processing time of CNC machine tools and metal stamping is long, because the processing cost has too many process steps and the tolerance of the process stacking is large, so the cost of turning is high and the tolerance defect rate will vary due to different batches of tools.

[0003] The above technical conditions still have defects: since the raw material for injection molding is metal, it needs to dissipate more heat during the cooling process. The existing method is to cool it by setting liquid cooling channels on the top and bottom, but the cooling effect is still not ideal, which in turn affects the molding efficiency of the product.

[0004] Based on this, the utility model designs a powder metallurgy mold for a bracket with a shared hot runner to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a powder metallurgy mold for a bracket with a shared hot runner to solve the above technical problems.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a powder metallurgy mold for a bracket with a shared hot runner, comprising a base plate and a panel, a filling hopper being provided on the panel, a hot runner being provided at the bottom of the panel, a front mold being connected to the bottom of the hot runner, a rear mold being provided at the bottom of the front mold, square irons being provided on both sides of the top of the base plate, a ejector mechanism being provided on the base plate and between the two groups of square irons, an upper liquid inlet pipe and an upper liquid outlet pipe being connected on one side of the front mold, a lower liquid inlet pipe and a lower liquid outlet pipe being connected on one side of the rear mold, a bottom liquid inlet pipe and a bottom liquid outlet pipe being connected on the bottom of one side of the rear mold, a bottom mold core being provided inside the rear mold, and part of the bottom liquid inlet pipe being located inside the bottom mold core.

[0007] By adopting the above technical solution, the formed product can be cooled from the bottom at the same time, thereby increasing its forming efficiency.

[0008] Preferably, an upper mold core is provided inside the front mold, a lower mold core is provided inside the rear mold, an adjustment block can be inserted into the upper mold core, and a molding cavity is provided between the lower mold core and the upper mold core.

[0009] By adopting the above technical solution, the thickness of the formed product can be changed according to the adjustment blocks of different lengths.

[0010] Preferably, a slider is further provided on one side of the lower mold core.

[0011] By adopting the above technical solution, it is convenient to clamp and install the lower mold core.

[0012] Preferably, the upper liquid inlet pipe is arranged inside the upper mold core in a circular curved shape, and the upper liquid outlet pipe is connected to an external liquid cooling conveying device.

[0013] Preferably, the lower liquid inlet pipe is arranged inside the lower mold core in a circular curved shape, and the lower liquid outlet pipe is connected to an external liquid cooling conveying device.

[0014] To sum up, the present application has the following beneficial technical effects: by setting the bottom mold core, bottom liquid inlet pipe and bottom liquid outlet pipe, the cooling efficiency of the product inside the molding cavity can be improved, thereby increasing the production efficiency of the product, and by replacing the adjustment blocks of different lengths, products of different thicknesses can be produced, thereby increasing the use effect of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0017] Figure 2 A schematic cross-sectional view of the structure of this embodiment;

[0018] Figure 3 Schematic diagram of the structure of the upper mold core and the lower mold core in this embodiment.

[0019] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0020] 1. Bottom plate; 2. Panel; 3. Injection hopper; 4. Hot runner; 5. Front mold; 6. Rear mold; 7. Square iron; 8. Ejector mechanism; 9. Upper liquid inlet pipe; 10. Upper liquid outlet pipe; 11. Lower liquid inlet pipe; 12. Lower liquid outlet pipe; 13. Bottom liquid inlet pipe; 14. Bottom liquid outlet pipe; 15. Bottom mold core; 16. Upper mold core; 17. Lower mold core; 18. Adjustment block; 19. Molding cavity; 20. Slider. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0022] The following is combined with Figure 1-3 This application is described in further detail.

[0023] Reference Figure 1 and Figure 2 A powder metallurgy mold for a bracket with a shared hot runner includes a bottom plate 1 and a panel 2. A hopper 3 is provided on the panel 2. A hot runner 4 is provided at the bottom of the panel 2 to continuously heat the injected liquid raw material. A front mold 5 is connected to the bottom of the hot runner 4. A rear mold 6 is provided at the bottom of the front mold 5. Square irons 7 are provided on both sides of the top of the bottom plate 1. An ejector mechanism 8 is provided on the bottom plate 1 and between the two sets of square irons 7. The ejector mechanism 8 can eject the molded and cooled product, making it easy to achieve Automatic unloading, one side of the front mold 5 is connected with an upper liquid inlet pipe 9 and an upper liquid outlet pipe 10, and one side of the rear mold 6 is connected with a lower liquid inlet pipe 11 and a lower liquid outlet pipe 12, which can cool the mold core from two positions, so that the product can be quickly formed. The bottom of one side of the rear mold 6 is also connected with a bottom liquid inlet pipe 13 and a bottom liquid outlet pipe 14, and a bottom mold core 15 is also provided inside the rear mold 6. Part of the bottom liquid inlet pipe 13 is located inside the bottom mold core 15, and the formed product can be cooled from the bottom center position.

[0024] Further, refer to Figure 3 An upper mold core 16 is provided inside the front mold 5, and a lower mold core 17 is provided inside the rear mold 6. An adjustment block 18 can be inserted into the upper mold core 16. Adjustment blocks 18 of different lengths are used according to different product thicknesses to increase the use effect of the mold. A molding cavity 19 is opened between the lower mold core 17 and the upper mold core 16. The molding cavity 19 is used for injection molding of the product.

[0025] Furthermore, a slider 20 is provided on one side of the lower mold core 17 , which can facilitate the clamping and installation of the lower mold core 17 .

[0026] Furthermore, the upper liquid inlet pipe 9 is arranged inside the upper mold core 16 in a circular curved shape, and the upper liquid outlet pipe 10 is connected to an external liquid cooling conveying device.

[0027] Furthermore, the lower liquid inlet pipe 11 is arranged inside the lower mold core 17 in a circularly bent shape, and the lower liquid outlet pipe 12 is connected to an external liquid cooling conveying device.

[0028] The implementation principle of this embodiment is as follows: when in use, the raw materials are injected into the interior of the molding cavity 19 through the injection hopper 3 through an external device. During the transportation process, the heating function of the hot runner 4 is turned on to continuously heat the input material to maintain its temperature. Then, after it is injected into the molding cavity 19, the coolant is continuously input through the upper liquid inlet pipe 9, the lower liquid inlet pipe 11 and the bottom liquid inlet pipe 13, and then the coolant is output through the upper liquid outlet pipe 10, the lower liquid outlet pipe 12 and the bottom liquid outlet pipe 14 respectively, which can quickly take away the heat emitted by the product molding, thereby improving the efficiency of product molding.

[0029] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0031] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder metallurgy mold for a bracket with a shared hot runner, comprising a base plate (1) and a panel (2), characterized in that: A material injection hopper (3) is provided on the panel (2), a hot runner (4) is provided at the bottom of the panel (2), a front mold (5) is connected to the bottom of the hot runner (4), a rear mold (6) is provided at the bottom of the front mold (5), square irons (7) are provided on both sides of the top of the bottom plate (1), a ejector mechanism (8) is provided on the bottom plate (1) and located between the two groups of square irons (7), an upper liquid inlet pipe (9) and an upper liquid outlet pipe (10) are connected on one side of the front mold (5), a lower liquid inlet pipe (11) and a lower liquid outlet pipe (12) are connected on one side of the rear mold (6), a bottom liquid inlet pipe (13) and a bottom liquid outlet pipe (14) are also connected at the bottom of one side of the rear mold (6), a bottom mold core (15) is also provided inside the rear mold (6), and a portion of the bottom liquid inlet pipe (13) is located inside the bottom mold core (15).

2. The powder metallurgy mold for a bracket with a shared hot runner according to claim 1, characterized in that: An upper mold core (16) is further provided inside the front mold (5), a lower mold core (17) is further provided inside the rear mold (6), an adjustment block (18) can be plugged into the upper mold core (16), and a molding cavity (19) is provided between the lower mold core (17) and the upper mold core (16).

3. The powder metallurgy mold for a bracket with a shared hot runner according to claim 2, characterized in that: A slider (20) is also provided on one side of the lower mold core (17).

4. The powder metallurgy mold for a bracket with a shared hot runner according to claim 2, characterized in that: The upper liquid inlet pipe (9) is arranged inside the upper mold core (16) in a circularly bent shape, and the upper liquid outlet pipe (10) is connected to an external liquid cooling conveying device.

5. The powder metallurgy mold for a bracket with a shared hot runner according to claim 2, characterized in that: The lower liquid inlet pipe (11) is arranged inside the lower mold core (17) in a circularly bent shape, and the lower liquid outlet pipe (12) is connected to an external liquid cooling conveying device.

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