Powder metallurgy gear mold convenient to recycle

Abstract

The utility model discloses a powder metallurgy gear mould convenient to recycle, which relates to the technical field of metallurgy gear moulds and comprises a mould frame, a forming mould, a demoulding device and a powder recycling device, the mould frame comprises an upper mould base, a lower mould base, a guide pillar and a guide sleeve, and the lower mould base and the upper mould base are connected through the guide sleeve and the guide pillar. The guide sleeves are installed on the periphery of the interior of the upper die base, one ends of the guide columns are inserted into the guide sleeves, the other ends of the guide columns are provided with guide column connecting parts, the guide column connecting parts are inserted into the periphery of the interior of the lower die base, and the forming die is arranged between the upper die base and the lower die base and comprises a male die, a female die and a demolding plate. The male die and the female die are matched with each other to form a die cavity in the shape needed by the metallurgical gear, the demolding plate is connected with a demolding device, a powder recovery device is arranged on the side face of the die frame, and the die has high production efficiency, stability and economical efficiency and meanwhile is beneficial to environmental protection.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical gear moulds, in particular to a powder metallurgy gear mould which is easy to recycle. Background Art

[0002] Powder metallurgy is a process technology for manufacturing metal powder and further compressing it into a mold. It is widely used in the fields of automobiles, machinery, aerospace, etc. Powder metallurgy gear molds are key tools for producing powder metallurgy gears. Their quality and performance have a vital impact on the precision, strength and wear resistance of gears. Traditional powder metallurgy gear molds are mostly made of materials such as steel or cemented carbide. Due to the limitations of their material properties and manufacturing processes, their service life is limited and they are difficult to recycle and reuse after being discarded. This not only causes a waste of resources, but also the disposal of discarded molds will bring a certain burden to the environment. At present, the recycling and reuse of powder metallurgy gear molds mainly face the following technical challenges: how to effectively separate and extract useful materials from the mold; how to restore the original performance and precision of the mold; how to achieve environmentally friendly treatment and resource utilization of mold materials, etc. In order to solve the above problems, some researchers have begun to explore new powder metallurgy gear mold materials and manufacturing technologies that are easy to recycle to improve the service life and recycling rate of the mold. Utility Model Content

[0003] The utility model aims to solve the technical problem of a powder metallurgy gear mold that is easy to recycle, at least to a certain extent. To this end, the utility model provides a powder metallurgy gear mold that is easy to recycle.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a powder metallurgy gear mold that is easy to recycle, and the powder metallurgy gear mold that is easy to recycle specifically includes a mold frame, a forming mold, a demoulding device and a powder recovery device, the mold frame includes an upper mold base, a lower mold base, a guide column and a guide sleeve, the lower mold base and the upper mold base are connected through the guide sleeve and the guide column, the guide sleeve is installed around the inside of the upper mold base, one end of the guide column is inserted into the inside of the guide sleeve, and the other end of the guide column is provided with a guide column connecting part, and the guide column connecting part is inserted around the inside of the lower mold base, the forming mold is arranged between the upper mold base and the lower mold base, the forming mold includes a punch, a die and a demoulding plate, the punch and the die cooperate with each other to form a mold cavity of the required shape of the metallurgical gear, the demoulding plate is used to remove the formed product from the punch, the demoulding plate is connected to the demoulding device, and a powder recovery device is arranged on the side of the mold frame.

[0005] In a preferred embodiment of the utility model, the demolding device includes an ejector, a stripper plate and an ejector fixing rod, the ejector is arranged on the lower mold base, the stripper plate should cooperate with the mold cavity, and the ejector fixing rod is fixedly connected to the ejector and the lower mold base.

[0006] In a preferred embodiment of the present utility model, the powder recovery device includes a dust collector and a filter, the dust collector is closely attached to one side of the lower mold base, and the filter is arranged on the dust collector.

[0007] In a preferred embodiment of the present invention, a material guide port with a rounded transition is provided on the circumferential side of the upper end surface of the die.

[0008] In a preferred embodiment of the utility model, an exhaust channel is provided inside the upper mold base, the exhaust channel is connected with the exhaust hole, and the exhaust hole is used to be connected with the mold cavity.

[0009] In a preferred embodiment of the present invention, the surfaces of the male and female molds are provided with demoulding slopes.

[0010] The beneficial effects of the utility model are as follows: after adopting the above structure, the mold is designed with a powder recovery device, which can effectively collect and reuse the powder generated in the production process, reduce the production cost, and also help protect the environment; the demoulding device includes an ejector, a stripping plate and an ejection fixing rod, and this design can ensure that the formed product is smoothly removed from the punch, thereby improving the production efficiency; a material guide port with a rounded transition is provided on the circumferential side of the upper end face of the die, which is conducive to the flow of powder, thereby ensuring the quality of the product and the stability of production; an exhaust channel is provided inside the upper die seat, and the exhaust channel is connected with the exhaust hole, and the exhaust hole is used to be connected with the mold cavity, and this design helps to reduce the gas retention in the mold cavity, avoiding the problem of pores in the product; a demoulding slope is set on the surface of the punch and the die, which can reduce the friction between the mold and the material, thereby extending the service life of the mold; the overall structural design is reasonable, and the forming mold is arranged between the upper die seat and the lower die seat. This structure makes the mold more stable as a whole; the mold design fully considers the various needs in the powder metallurgy gear manufacturing process, from forming to demolding, to powder recovery, each link has been optimized; it not only improves production efficiency, but also makes the production process more environmentally friendly and sustainable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the cross-sectional structure of the main body of the utility model;

[0012] In the figure: 1-upper die base, 2-lower die base, 3-guide post, 4-guide sleeve, 5-guide post connecting part, 6-punch, 7-die, 8-stripping plate, 9-mold cavity, 10-ejector, 11-stripping plate, 12-ejection fixing rod, 13-dust collector, 14-filter, 15-feeding port, 16-exhaust channel, 17-exhaust hole. DETAILED DESCRIPTION

[0013] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0014] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0015] like Figure 1 As shown, a powder metallurgy gear mold that is easy to recycle, the powder metallurgy gear mold that is easy to recycle specifically includes a mold frame, a forming mold, a demoulding device and a powder recovery device, the mold frame includes an upper mold base 1, a lower mold base 2, a guide column 3 and a guide sleeve 4, the lower mold base 2 and the upper mold base 4 are connected through the guide sleeve 4 and the guide column 3, the guide sleeve 4 is installed around the inside of the upper mold base 1, one end of the guide column 3 is inserted into the inside of the guide sleeve 4, and the other end of the guide column 3 is provided with a guide column connecting part 5, which is inserted around the inside of the lower mold base 2, and the forming mold is arranged between the upper mold base 1 and the lower mold base 2. In implementation, the upper mold base 1 and the lower mold base 2 of the mold frame provide a stable installation platform for the forming mold, ensuring Ensure the precise alignment of the mold; the guide devices of the guide column 3 and the guide sleeve 4 ensure the accurate alignment of the upper and lower molds and the smooth opening and closing of the mold; the forming mold includes a punch 6, a die 7 and a stripper plate 8. The punch 6 and the die 7 cooperate with each other to form a mold cavity 9 of the shape required for the metallurgical gear. The stripper plate 8 is used to remove the formed product from the punch 3. The stripper plate 8 is connected to the stripping device. A powder recovery device is set on the side of the mold frame. In specific implementation, the punch 6 and the die 7 form a mold cavity 9 of the shape required for the metallurgical gear through cooperation between them, which is used to press the powder and form the gear shape. The stripper plate 8 is connected to the stripping device to ensure that the formed product can be smoothly removed from the punch, thereby improving the stripping efficiency.

[0016] like Figure 1 As shown, on the basis of the above method, the demoulding device includes an ejector 10, a stripper plate 11 and an ejector fixing rod 12. The ejector 10 is arranged on the lower die base 2. The stripper plate 11 should cooperate with the die cavity 9. The ejector fixing rod 12 is fixedly connected with the ejector 10 and the lower die base 2. The ejector 10 on the demoulding device: provides sufficient force to ensure that the product is ejected from the punch smoothly. The stripper plate 11 cooperates with the die cavity 9 to ensure that the product will not deviate during the ejection process. The ejector fixing rod 12 is fixed to the ejector 10 and the lower die base 2 to ensure the stability of the overall structure.

[0017] like Figure 1 As shown, on the basis of the above method, the powder recovery device further includes a vacuum cleaner 13 and a filter 14, the vacuum cleaner 13 is closely attached to one side of the lower mold base 2, and the filter 14 is arranged on the vacuum cleaner 13; the vacuum cleaner 13 on the powder recovery device is used to absorb and recover the powder scattered during the forming process to reduce waste and environmental pollution; the filter 14 filters the air sucked by the vacuum cleaner 13 to prevent the powder from being scattered again.

[0018] like Figure 1 As shown, based on the above method, a material guide port 15 with a rounded transition is provided on the circumferential side of the upper end surface of the die 7. The material guide port 15 on the die 7 helps guide the metal powder into the mold cavity to ensure uniform filling.

[0019] like Figure 1 As shown, on the basis of the above method, an exhaust channel 16 is further provided inside the upper mold base 1, and the exhaust channel 16 is connected with the exhaust hole 17, and the exhaust hole 17 is used to be connected with the mold cavity 9. The exhaust channel 16 and the exhaust hole 17 in the mold base 1; the exhaust channel 16 helps to exhaust gas to avoid the formation of pores during the forming process, and the exhaust hole 17 is connected with the mold cavity 9 to ensure that the gas can be discharged smoothly.

[0020] like Figure 1 As shown, on the basis of the above method, a demolding slope is further set on the surface of the punch 6 and the die 7. The demolding slope of the punch 6 and the die 7 increases the smoothness of demolding, reduces the friction between the product and the mold, and extends the service life of the mold.

[0021] In the specific working process of the new type of powder metallurgy gear mold that is easy to recycle, installation and positioning: the upper mold base 1 and the lower mold base 2 are connected by guide sleeves 4 and guide pillars 3 to form a stable mold frame. The guide pillars 3 and guide sleeves 4 ensure the accurate alignment of the upper and lower molds, and ensure the smooth opening and closing of the molds. Forming process: the punch 6 and the die 7 cooperate to form a mold cavity 9 of the required shape of the metallurgical gear; the powder enters the mold cavity 9 through a specific channel and forms a gear shape under pressure. Demolding process: when the pressing is completed, the stripping plate 8 is connected to the demolding device and the ejector 10 is started; the ejector 10 provides force to smoothly remove the molded product from the punch 3; the stripper plate 11 ensures that the product will not deviate during the ejection process. Powder recovery and cleaning: the vacuum cleaner 13 absorbs the powder scattered during the forming process for recycling; the filter 14 filters the air sucked by the vacuum cleaner to prevent the powder from being scattered again. Exhaust: The exhaust channel 16 in the upper die base 1 helps to exhaust gas and avoid the formation of pores during the forming process; the exhaust hole 17 ensures that the gas can be smoothly discharged and connected to the mold cavity 9. The surfaces of the punch 6 and the die 7 have a demolding slope to increase the smoothness of demolding, reduce friction, and extend the service life of the mold. Through the above steps, the powder metallurgy gear mold that is easy to recycle can efficiently produce high-quality powder metallurgy gears while ensuring recycling and environmental protection.

[0022] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0023] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A powder metallurgy gear mold that is easy to recycle, the powder metallurgy gear mold that is easy to recycle specifically comprises a mold frame, a forming mold, a demoulding device and a powder recovery device, characterized in that: The mold frame includes an upper mold base, a lower mold base, a guide column and a guide sleeve. The lower mold base and the upper mold base are connected by a guide sleeve and a guide column. The guide sleeve is installed around the inside of the upper mold base. One end of the guide column is inserted into the guide sleeve. The other end of the guide column is provided with a guide column connecting part. The guide column connecting part is inserted around the inside of the lower mold base. The forming mold is arranged between the upper mold base and the lower mold base. The forming mold includes a punch, a die and a stripping plate. The punch and the die cooperate with each other to form a mold cavity of the required shape of the metallurgical gear. The stripping plate is used to remove the formed product from the punch. The stripping plate is connected to a stripping device. A powder recovery device is arranged on the side of the mold frame.

2. A powder metallurgy gear mold that is easy to recycle according to claim 1, characterized in that: The demoulding device includes an ejector, a stripper plate and an ejector fixing rod. The ejector is arranged on the lower mold base. The stripper plate should cooperate with the mold cavity. The ejector fixing rod is fixedly connected to the ejector and the lower mold base.

3. The powder metallurgy gear mold that is easy to recycle according to claim 1, characterized in that: The powder recovery device comprises a dust collector and a filter. The dust collector is closely attached to one side of the lower die base, and the filter is arranged on the dust collector.

4. The powder metallurgy gear mold that is easy to recycle according to claim 1, characterized in that: A material guide port with a rounded transition is arranged on the peripheral side of the upper end surface of the concave die.

5. The powder metallurgy gear mold that is easy to recycle according to claim 1, characterized in that: An exhaust channel is provided inside the upper mold base, and the exhaust channel is connected with the exhaust hole, and the exhaust hole is used to be connected with the mold cavity.

6. The powder metallurgy gear mold that is easy to recycle according to claim 1, characterized in that: The surfaces of the male mold and the female mold are provided with a demoulding slope.

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