Alloy bar extrusion die

Abstract

The utility model discloses an alloy bar extrusion die, which relates to the technical field of extrusion dies, and comprises a die holder, a positive die, a die sleeve, an extrusion rod, a pressure relief groove, a water injection port and a flow guide device, the positive die is arranged on the die holder, a die hole matched with the section shape of a required bar is formed in the die holder, and the die sleeve is sleeved outside the positive die to protect the positive die and help to uniformly distribute extrusion force. The extrusion rod is arranged between the front die and the die sleeve in a penetrating mode, a pressure relief groove is formed between the die sleeve and the front die and used for guiding redundant materials or assisting in releasing pressure generated in the extrusion process, the water injection port is formed in the side face of the front die and serves as an inlet for providing cooling water for the die, and the flow guiding device is arranged at the front end of the front die. According to the die, the efficient, stable and accurate bar extrusion process is achieved, the product quality and the production efficiency are improved, and meanwhile the damage risk and the maintenance cost of the die are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion dies, in particular to an alloy bar extrusion die. Background Art

[0002] The mechanical properties of alloy materials, such as strength, hardness and toughness, can be significantly improved by extrusion processing. The pressure and heat during the extrusion process help to refine the grains and eliminate internal defects of the material, so that the final product has a more uniform structure and better overall performance. To achieve this goal, specially designed dies are needed to control the material flow and ensure that the material can be evenly distributed when it is compressed and deformed. Extrusion is an efficient forming technology that can produce continuous long materials with simple to complex cross-sectional shapes. Alloy bars may need to have specific cross-sectional shapes, dimensional accuracy and surface quality to meet the needs of subsequent processing or direct application. The design of the extrusion die needs to accurately match the required product shape, including variable section design, which requires the die to have a high degree of precision and durability. Different alloy materials have different requirements for extrusion conditions due to their different physical properties such as melting point, thermal expansion coefficient, plasticity, etc. The extrusion die needs to select suitable materials and surface treatment technologies according to the characteristics of the alloy being processed (such as high-temperature alloys, aluminum alloys, copper alloys, etc.), such as boron treatment, PVD / CVD coating, etc., to enhance the wear resistance, heat resistance and anti-adhesion of the die, extend the die life and ensure product quality. In summary, the design and manufacturing of alloy bar extrusion dies are not only related to product quality and production efficiency, but also an important link in promoting the advancement of materials science and the sustainable development of the manufacturing industry. Utility Model Content

[0003] The utility model aims to solve one of the technical problems of alloy bar extrusion dies at least to a certain extent. To this end, the utility model proposes an alloy bar extrusion die.

[0004] The technical solution adopted by the utility model to solve its technical problems is: an alloy bar extrusion die, which specifically includes a die base, a positive die, a die sleeve, an extrusion rod, a pressure relief groove, a water injection port and a guide device. The positive die is arranged on the die base, and a die hole matching the required cross-sectional shape of the bar is opened inside. The die sleeve is sleeved on the outside of the positive die to protect the positive die and help to evenly distribute the extrusion force, and also helps to cool the die. The extrusion rod is arranged between the positive die and the die sleeve, and a pressure relief groove is arranged between the die sleeve and the positive die. The pressure relief groove is used to guide excess material or help release the pressure generated during the extrusion process. The water injection port is arranged on the side of the positive die to provide an inlet for cooling water for the die, and the guide device is at the front end of the positive die.

[0005] In a preferred embodiment of the present invention, the shape of the die sleeve is circular, so that the die sleeve matches the circumference of the outer circle of the accommodated rod.

[0006] In a preferred embodiment of the utility model, the guide device includes a rear mold pad, a guide pipe and a guide pad. The rear mold pad is arranged under the mold sleeve and fixed by bolts. The guide pipe connects and passes through the rear mold pad and the mold sleeve. The guide pad is arranged at one end of the guide pipe.

[0007] In a preferred embodiment of the utility model, guide pins and guide sleeves are arranged between the mold base and the positive mold. The guide pins are installed on the four corners inside the mold base and cooperate with the corresponding parts of the guide sleeve on the positive mold to guide the opening and closing action of the mold and ensure the accuracy of the movement.

[0008] In a preferred embodiment of the present invention, the other end of the extrusion rod is fixedly connected to a pressing plate, and the lower surface of the pressing plate at the lower end of the extrusion rod abuts against the upper surface of the positive mold.

[0009] The beneficial effects of the utility model are as follows: after adopting the above structure, the mold design includes key components such as the mold base, the positive mold, the mold sleeve, the extrusion rod, and the pressure relief groove. The components work together to make the extrusion process of the rod more efficient and stable. The positive mold is provided with a mold hole matching the required cross-sectional shape of the rod, which can accurately control the shape and size of the extruded rod, thereby improving product quality. The mold sleeve is sleeved on the outside of the positive mold, which can not only protect the positive mold from direct impact and wear, but also help to evenly distribute the extrusion force and extend the service life of the positive mold. A pressure relief groove is provided between the mold sleeve and the positive mold, which can guide the excess material to flow out and help release the excessive pressure generated during the extrusion process, prevent damage to the mold, and improve production safety. By setting a water injection port, continuous cooling water can be provided to the mold to keep the mold in the working process The stable temperature can prevent mold damage or product quality degradation caused by high temperature. The design of the guide device includes components such as the back pad, the guide pipe and the guide pad, which can effectively guide the flow of materials, improve extrusion efficiency, and reduce material waste. The guide pillars and guide sleeves arranged between the die base and the positive die can accurately guide the opening and closing actions of the mold to ensure the accuracy of the movement, further improve production efficiency and product quality, and the overall structural design is reasonable. The connection and cooperation between the components are tight and smooth, making the mold easy to operate and maintain during use. In summary, the utility model alloy bar extrusion die realizes an efficient, stable and precise bar extrusion process through reasonable structural design and the coordinated work of various components, improves product quality and production efficiency, and reduces the risk of mold damage and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 It is a partial structural schematic diagram of the utility model;

[0012] In the figure: 1-die base, 2-positive die, 3-die sleeve, 4-extrusion rod, 5-pressure relief groove, 6-water injection port, 7-die hole, 8-die back pad, 9-guide pipe, 10-guide pad, 11-guide column, 12-guide sleeve, 13-pressing plate. 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", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the 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 said 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 1As shown, an alloy bar extrusion die, the alloy bar extrusion die specifically comprises a die base 1, a positive die 2, a die sleeve 3, an extrusion rod 4, a pressure relief groove 5, a water injection port 6 and a guide device. The positive die 2 is arranged on the die base 1, and a die hole 7 matching the required cross-sectional shape of the bar is opened inside. The die sleeve 3 is sleeved on the outside of the positive die 2 to protect the positive die 2 and help evenly distribute the extrusion force, and also helps to cool the die. The extrusion rod 4 is arranged between the positive die 2 and the die sleeve 3. A pressure relief groove 5 is arranged between the die sleeve 3 and the positive die 2. The pressure relief groove 5 is used to guide excess material or help release the pressure generated during the extrusion process. The water injection port 6 is arranged on the side of the positive die 2 to provide cooling water for the die. The inlet of the positive mold 2 is provided with a flow guide device at the front end of the positive mold 2. In specific implementation, the mold base 1 has strong stability: as the base of the entire mold, it provides a solid support for other components. It is usually made of high-strength materials and can withstand long-term extrusion force and weight. The design of the mold base 1 usually takes into account the convenience of installation, disassembly and debugging. The mold hole 7 opened inside the positive mold 2 matches the required cross-sectional shape of the rod to ensure the precise forming of the rod. The positive mold material needs to withstand high pressure and friction, so it has good wear resistance. During the extrusion process, the positive mold can withstand high temperatures and maintain a stable shape. The mold sleeve 3 is wrapped around the outside of the positive mold 2 to protect the positive mold 2 from direct impact and wear. It helps to evenly distribute the extrusion force from the extrusion rod 4 to ensure uniform flow of the material. The extrusion rod 4 can effectively transfer the pressure to the material in the mold to ensure the smooth extrusion of the rod. The extrusion rod 4 needs to withstand huge extrusion pressure and has high strength and wear resistance. During the extrusion process, the pressure relief groove 5 can guide excess material into the pressure relief groove 5, thereby helping to regulate and control the pressure in the mold. When the pressure inside the mold is too high, the pressure relief groove can release the pressure and protect the mold from damage. Injecting cooling water into the mold through the water injection port 6 can quickly reduce the mold temperature, improve production efficiency and product quality, and effective cooling can reduce mold wear and thermal fatigue and extend its service life.

[0016] like Figure 1 As shown, on the basis of the above method, the shape of the mold sleeve 3 is circular, so that the mold sleeve 3 cooperates with the circumferential surface of the outer circle of the accommodated rod. In specific implementation, the circular design enables the mold sleeve to better adapt to and protect the positive mold 2, while evenly distributing the pressure during extrusion, reducing the risk of mold damage caused by local overpressure, and promoting the heat exchange efficiency of the mold, thereby improving production efficiency and product quality through good cooling effect.

[0017] like Figure 2As shown, on the basis of the above method, the guide device includes a rear die pad 8, a guide pipe 9 and a guide pad 10. The rear die pad 8 is arranged below the die sleeve 3 and fixed by bolts. The guide pipe 9 connects and passes through the rear die pad 8 and the die sleeve 3. The guide pad 10 is arranged at one end of the guide pipe 9. In a specific implementation, after the diameter bar is extruded, it can move forward along the guide pipe 9. This design helps the bar to have a certain strength after extrusion and can maintain straightness, avoiding severe bending of the bar. The rear die pad 8 is fixed below the die sleeve 3 by bolts to ensure the stability of the entire guide device.

[0018] like Figure 1 As shown, on the basis of the above method, guide posts 11 and guide sleeves 12 are further arranged between the mold base 1 and the positive mold 2. The guide posts 11 are installed on the four corners inside the mold base 1, and cooperate with the corresponding parts of the guide sleeves 12 on the positive mold 2 to guide the opening and closing action of the mold and ensure the accuracy of the movement. In specific implementation, the guide posts 11 and the guide sleeves 12 ensure the accuracy of the opening and closing action of the mold, improve production efficiency and product quality, and the guide posts 11 and the guide sleeves 12 are usually made of materials with good wear resistance and can withstand long-term friction and use.

[0019] like Figure 1 As shown, on the basis of the above method, the other end of the extrusion rod 4 is further fixedly connected with a pressing plate 13, and the lower surface of the pressing plate 13 at the lower end of the extrusion rod 4 abuts against the upper surface of the positive mold 2. In a specific implementation, the pressing plate 13 is connected to the extrusion rod 4, and can effectively transmit the extrusion force to the material in the mold. The design of the pressing plate 13 helps to maintain the stability and verticality of the extrusion rod 4, thereby improving the accuracy of extrusion.

[0020] In the specific working process of the new alloy bar extrusion die, first, ensure that the die base 1 is firmly installed to provide a stable base for the entire extrusion process. The positive die 2 is placed on the die base 1, and the die hole 7 inside it matches the cross-sectional shape of the required bar. The die sleeve 3 is sleeved on the outside of the positive die 2 to provide protection and help evenly distribute the extrusion force. The extrusion rod 4 runs through the positive die 2 and the die sleeve 3, and the pressure plate 13 at the other end is used to effectively transmit the extrusion force. The guide column 11 and the guide sleeve 12 ensure the accuracy of the opening and closing action of the die. The alloy material to be extruded is heated to an appropriate temperature to improve its plasticity and facilitate extrusion molding. The extrusion rod 4 is pushed by an external pressure device (such as a hydraulic press) so that its downward force is transmitted to the positive die 2 through the pressure plate 13. As the extrusion rod 4 descends, the heated alloy material is forced to pass through the die hole 7 in the positive die 2, and gradually forms a bar that matches the shape of the die hole. During the extrusion process, cooling water can be injected into the mold through the water injection port 6 to quickly reduce the temperature of the mold and the newly extruded bar. Cooling helps the bar to gain sufficient strength faster and maintain its shape. During the extrusion process, if the pressure inside the die is too high, the pressure relief groove 5 can guide the excess material in and help release the internal pressure to protect the die from damage. The extruded bar moves forward through the guide device (including the rear die pad 8, the guide tube 9 and the guide pad 10) to maintain straightness and avoid severe bending. When the bar reaches the required length or the extrusion process is completed, the extrusion is stopped. Take out the formed bar for subsequent processing (such as cutting, heat treatment, etc.). Clean the residue inside the die in preparation for the next extrusion. Check the wear of the die regularly and perform necessary maintenance and replacement. Through such a working process, the new alloy bar extrusion die can efficiently produce bars of precise shape while improving production efficiency and product quality.

[0021] 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.

[0022] 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. An alloy bar extrusion die, characterized in that: The alloy bar extrusion die specifically includes a die base, a positive die, a die sleeve, an extrusion rod, a pressure relief groove, a water injection port and a guide device. The positive die is arranged on the die base, and a die hole matching the required cross-sectional shape of the bar is opened inside. The die sleeve is sleeved on the outside of the positive die to protect the positive die and help evenly distribute the extrusion force, and also helps to cool the die. The extrusion rod is arranged between the positive die and the die sleeve. A pressure relief groove is arranged between the die sleeve and the positive die. The pressure relief groove is used to guide excess material or help release the pressure generated during the extrusion process. The water injection port is arranged on the side of the positive die to provide an inlet for cooling water for the die, and the guide device is at the front end of the positive die.

2. The alloy bar extrusion die according to claim 1, characterized in that: The shape of the die sleeve is circular, so that the die sleeve matches the circumference of the outer circle of the accommodated rod.

3. The alloy bar extrusion die according to claim 1, characterized in that: The flow guide device includes a rear mold pad, a flow guide pipe and a guide pad. The rear mold pad is arranged below the mold sleeve and fixed by bolts. The flow guide pipe connects and passes through the rear mold pad and the mold sleeve. The guide pad is arranged at one end of the flow guide pipe.

4. The alloy bar extrusion die according to claim 1, characterized in that: Guide posts and guide sleeves are arranged between the mold base and the positive mold. The guide posts are installed on the four corners inside the mold base and cooperate with the corresponding parts of the guide sleeves on the positive mold to guide the opening and closing movements of the mold and ensure the accuracy of the movement.

5. The alloy bar extrusion die according to claim 1, characterized in that: The other end of the extrusion rod is fixedly connected with a pressing plate, and the lower surface of the pressing plate at the lower end of the extrusion rod abuts against the upper surface of the positive mold.

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