Extruding machine provided with forging and pressing movable sliding block

Abstract

The extruding machine comprises a machine base, an extruding mechanism and a power mechanism, a front beam is installed at the front end of the machine base, a die holder is installed between an ingot containing barrel and the front beam and can slide to one side of the front beam, and the ingot containing barrel is installed at the position, close to the front beam, of the middle of the machine base and can be movably connected in a front-back positioning mode. A rear beam, a main cylinder, a main plunger and an extrusion rod are installed at the rear end of the machine base, the front beam and the rear beam are fixedly connected through a tension column, a movable sliding block can be installed between the ingot containing barrel and the mold base through a mechanical arm to be tightly pressed and connected in a sealed mode, and the surface of the end, close to the ingot containing barrel, of the movable sliding block is sprayed with a high-temperature-resistant release agent. According to the utility model, the defects of tail shrinkage, interlayer and looseness of an extruded profile can be effectively reduced, so that the density of a metal matrix of a normal high-extrusion-ratio product can be achieved, a product of a high-tonnage extruder can be produced by using a small-tonnage extruder, and the production and investment cost is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of extrusion equipment technology, specifically to an extrusion press equipped with a forging moving slide block. Background Technology

[0002] An extruder is a mechanical device used for processing materials such as metals and plastics. It applies pressure to the material, causing it to plastically deform within a die to obtain the desired shape and size. The working principle of an extruder is to place the material into an extrusion cylinder, then apply pressure through an extrusion rod, forcing the material through the die. During the extrusion process, the material is subjected to high temperature and high pressure, resulting in plastic deformation. There are many types of extruders; different types can be selected depending on the material and processing requirements. For example, metal extruders can be used to process metal materials such as aluminum alloys, copper alloys, and steel; plastic extruders can be used to process plastic materials such as polyethylene, polypropylene, and polystyrene. The advantages of extruders are that they can produce high-precision, high-quality products, and they offer high production efficiency and low cost. Therefore, they are widely used in metal processing, plastics processing, food processing, and other fields.

[0003] Current hot extrusion processes for non-ferrous metals, including aluminum alloys and copper alloys (including forward and reverse extrusion), determine the extrusion ratio (generally 30-80) based on the alloy series (1-8 series) and grade (commonly T4, T5, T6, etc.). A drawback of current extrusion processes is that to ensure product quality (avoiding sandwiching, delamination, and shrinkage) and production yield, large-diameter, high-tonnage extruders must be used to increase the extrusion ratio, while also leaving sufficient scrap length. References: 1. *Practical Technical Handbook for Aluminum Profile Processing*, published by Central South University Press, June 2006, author: Luo Su; 2. *Nonferrous Metals Processing*, Vol. 43, No. 4, August 2014, academic journal sponsored by the China Nonferrous Metals Industry Association and Luoyang Nonferrous Metals Processing Design Institute, author: Wu Xikun.

[0004] Currently, copper and aluminum profile extrusion presses are prone to producing tail shrinkage, delamination, and layering when producing profiles with low extrusion ratios ≤25 or wall thicknesses greater than 5.0mm. This trend is particularly pronounced when producing solid profiles. To ensure product quality, a method is to cut a considerable length of tail material at both ends of the extruded profile, which reduces the yield and increases production costs. Summary of the Invention

[0005] The purpose of this utility model is to address the deficiencies and shortcomings of the existing technology and the aforementioned background technology by providing an extrusion press equipped with a forging moving slide block. This extrusion press has a reliable structure, is automated, and can effectively solve the problem of low product density when producing aluminum profiles with small extrusion ratios, thereby improving the yield of extruded products.

[0006] To achieve the above objectives and solve the above problems, the technical solution adopted by this utility model is: an extrusion press equipped with a forging moving slider, including a machine base, an extrusion mechanism and a power mechanism. The extrusion mechanism includes a front beam, a die base, a billet cylinder, a rear beam, a main cylinder, a main plunger, an extrusion rod, a robot arm and a moving slider. The front beam is installed at the front end of the machine base. The die base is installed between the billet cylinder and the front beam and can slide to one side of the front beam. The billet cylinder is installed in the middle of the machine base near the front beam and can be positioned and moved back and forth. The rear end of the machine base is respectively equipped with a rear beam, a main cylinder, a main plunger and an extrusion rod. The front beam and the rear beam are fixedly connected by a tension column. The moving slider can be installed between the billet cylinder and the die base by the robot arm for tight sealing connection. The surface of the slider near the billet cylinder is sprayed with a high-temperature resistant release agent.

[0007] The extruder of this invention adds a "forging" action step during operation compared to existing extruders. The hydraulic cylinder pressure of the billet cylinder pushes the front face of the billet cylinder to press against the moving slider and the die holder, so that the rear face of the die holder is in close contact with the moving slider to seal the front face of the billet cylinder. At this time, the main cylinder advances to the machine's highest pressure value, pushing the extrusion rod on the main plunger to extrude the aluminum rod (copper-aluminum alloy rod, etc.) in the billet cylinder. It is pressed into a high-density alloy rod melt by the highest working pressure designed for the extruder, similar to the forging action of metal. After the extruder holds the highest pressure value for ≥1 second, the billet cylinder retracts and the moving slider is removed, and then the normal extrusion and discharge action is performed. With the above structure, the movable slider of this invention can be installed between the ingot cylinder and the die holder by a robotic arm. Since the front and rear end faces of the movable slider are parallel to the front end face of the ingot cylinder and the rear end face of the die holder, respectively, and the working area of ​​the end faces of the movable slider is equivalent to the maximum specification of the corresponding die of the extrusion press, this ensures that the movable slider fits tightly with the ingot cylinder, die, and die holder during operation, guaranteeing the sealing performance of the movable slider over the ingot cylinder. Simultaneously, the surface of the movable slider near the ingot cylinder is sprayed with a high-temperature resistant release agent. After the forging process is completed, the movable slider separates from the surface of the high-density alloy rod melt at high temperature, preventing the high-density alloy rod melt from adhering to the surface of the movable slider. This improves the quality and efficiency of metal processing and ensures smooth extrusion of the extruded profile.

[0008] Furthermore, the robotic arm is mounted on the side between the ingot holder and the front beam, and its movement path is parallel to the rear end face of the mold base.

[0009] With the above structure, the robot arm of this invention pushes the movable slider from the side into the center of the mold end face installed on the mold base, avoiding contact with the mold base and causing damage.

[0010] Furthermore, the movable slider is block-shaped or cylindrical.

[0011] With the above structure, this utility model can use movable sliders of different shapes to cooperate with robotic arms, molds, etc. of different shapes.

[0012] Furthermore, the movable slider is made of H11 steel or H13 steel.

[0013] With the above structure, the H11 steel and H13 steel used in the movable slider of this utility model are both high-performance hot work die steels, which enable the movable slider to maintain good hardness and strength at high temperatures, making it less prone to breakage when subjected to impact, able to resist wear on the die surface, have good thermal fatigue performance, and be able to withstand repeated heating and cooling. The product quality after forging and extrusion is stable and reliable.

[0014] The advantages of this invention over existing extrusion presses are: the matrix metal density of copper-aluminum alloy profiles produced by this invention's extrusion press is higher than that of products produced by conventional extrusion presses, effectively reducing defects such as tail shrinkage, delamination, and porosity in the extruded profiles, and improving the product yield in the copper-aluminum alloy extrusion process; in addition, it can increase the product density when producing low extrusion ratio profiles, making it reach the normal matrix metal density of high extrusion ratio products, thus enabling the production of high-tonnage extrusion products with a small-tonnage extrusion press, greatly reducing production costs and equipment investment costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a cross-sectional structural diagram of a specific embodiment of the present utility model;

[0017] Figure 2 This is a three-dimensional schematic diagram of a specific embodiment of the present utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Base;

[0020] 2. Front beam;

[0021] 3. Mold base;

[0022] 4. Ingot container;

[0023] 5. Rear beam;

[0024] 6. Master cylinder;

[0025] 7. Main plunger;

[0026] 8. Extrusion rod;

[0027] 9. Robotic arm;

[0028] 10. Move the slider;

[0029] 11. Tension column. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] See Figure 1 , Figure 2As shown, the technical solution adopted in this specific embodiment is: an extrusion press equipped with a forging moving slider, including a machine base 1, an extrusion mechanism and a power mechanism. The extrusion mechanism includes a front beam 2, a die base 3, a billet cylinder 4, a rear beam 5, a main cylinder 6, a main plunger 7, an extrusion rod 8, a robot arm 9 and a moving slider 10. The front beam 2 is installed at the front end of the machine base 1. The die base 3 is installed between the billet cylinder 4 and the front beam 2 and can slide to one side of the front beam 2. The billet cylinder 4 is installed in the middle of the machine base 1 near the front beam 2 and can be positioned and moved back and forth. The rear end of the machine base 1 is respectively equipped with the rear beam 5, the main cylinder 6, the main plunger 7 and the extrusion rod 8. The front beam 2 and the rear beam 5 are fixedly connected by a tension column 11. The moving slider 10 can be installed between the billet cylinder 4 and the die base 3 by the robot arm 9 for tight sealing connection. The surface of its end near the billet cylinder 4 is sprayed with a high-temperature resistant release agent. The extruder of this specific embodiment adds a "forging" action step during operation compared to the existing extruder. The hydraulic cylinder pressure of the ingot cylinder 4 pushes the front end face of the ingot cylinder 4 to press the movable slider 10 and the die holder 3, so that the movable slider 10, which is in close contact with the rear end face of the die holder 3, seals the front end face of the ingot cylinder 4. At this time, the main cylinder 6 advances to the machine's highest pressure value, pushing the extrusion rod 8 on the main plunger 7 to extrude the aluminum rod (copper-aluminum alloy rod, etc.) in the ingot cylinder 4. It is pressed into a high-density alloy rod melt by the highest working pressure designed for the extruder, similar to the forging action of metal. After the extruder holds the highest pressure value for ≥1 second, the ingot cylinder 4 retracts and removes the movable slider 10, and then the normal extrusion and discharge action is performed. With the above structure, the movable slider 10 in this specific embodiment can be installed between the ingot cylinder 4 and the die base 3 by the robot arm 9. Since the front and rear end faces of the movable slider 10 are parallel to the front end face of the ingot cylinder 4 and the rear end face of the die base 3, respectively, and the working area of ​​the end face of the movable slider 10 is equivalent to the maximum specification of the corresponding die of the extrusion press, it can be ensured that the movable slider 10 is in close contact with the ingot cylinder 4, the die, and the die base 3 during operation, so as to ensure the sealing of the movable slider 10 to the ingot cylinder 4. At the same time, the surface of the movable slider 10 near the ingot cylinder 4 is sprayed with a high-temperature resistant release agent. After the forging operation is completed, the movable slider is separated from the surface of the high-density alloy rod melt at high temperature to prevent the high-density alloy rod melt from adhering to the surface of the movable slider 10, thereby improving the quality and efficiency of metal processing and ensuring the smooth operation of extruded profile output.

[0032] In this specific embodiment, the robotic arm 9 is installed on the side between the ingot container 4 and the front beam 2, and its movement path is parallel to the rear end face of the mold base 3. When the robotic arm 9 pushes the movable slider 10 from the side into the center position of the mold end face installed on the mold base 3, it avoids contact with the mold base 3 and damage.

[0033] In this specific embodiment, the movable slider 10 is block-shaped or cylindrical. Different shapes of movable sliders 10 can be used in this specific embodiment to accommodate different shapes of robotic arms 9, molds, etc.

[0034] In this specific embodiment, the movable slider 10 is made of H11 steel or H13 steel. Both H11 and H13 steels used in the movable slider 10 of this specific embodiment are high-performance hot-work die steels, enabling the movable slider 10 to maintain good hardness and strength at high temperatures. It is not easily broken under impact, can resist wear on the die surface, has good thermal fatigue performance, and can withstand repeated heating and cooling. The extruded product after forging has stable and reliable quality.

[0035] The advantages of this invention over existing extrusion presses are as follows: the matrix metal density of the copper-aluminum alloy profiles produced by the extrusion press of this invention is higher than that of products produced by conventional extrusion presses, which can effectively reduce defects such as tail shrinkage, delamination, and porosity in the extruded profiles and improve the product yield in the copper-aluminum alloy extrusion process; in addition, it can increase the product density when producing low extrusion ratio profiles to achieve the normal matrix metal density of high extrusion ratio products, enabling the production of high-tonnage extrusion products with small-tonnage extrusion presses, which greatly reduces production costs and equipment investment costs.

[0036] The above description is only used to illustrate the technical solution of this utility model, and is not intended to limit other modifications or equivalent substitutions that can be made by those skilled in the art to the technical solution of this utility model. As long as they do not depart from the spirit and scope of the technical solution of this utility model, they should be covered within the scope of the claims of this utility model.

Claims

1. An extrusion press equipped with a forging moving slide block, comprising a base (1), an extrusion mechanism, and a power mechanism, characterized in that: The extrusion mechanism includes a front beam (2), a mold base (3), a billet cylinder (4), a rear beam (5), a main cylinder (6), a main plunger (7), an extrusion rod (8), a robot (9), and a moving slider (10). The front beam (2) is installed at the front end of the machine base (1). The mold base (3) is installed between the billet cylinder (4) and the front beam (2) and can slide to one side of the front beam (2). The billet cylinder (4) is installed in the middle of the machine base (1) near the front beam (2) and can be positioned and moved back and forth. The rear end of the machine base (1) is respectively equipped with a rear beam (5), a main cylinder (6), a main plunger (7), and an extrusion rod (8). The front beam (2) and the rear beam (5) are fixedly connected by a tension column (11). The moving slider (10) can be installed between the billet cylinder (4) and the mold base (3) by the robot (9) and is tightly sealed. The surface of the end of the slider near the billet cylinder (4) is sprayed with a high-temperature release agent.

2. The extrusion press with a forging moving slide block according to claim 1, characterized in that: The robotic arm (9) is installed on the side between the ingot container (4) and the front beam (2), and its movement path is parallel to the rear end face of the mold base (3).

3. The extrusion press equipped with a forging moving slide block according to claim 1, characterized in that: The movable slider (10) is block-shaped or cylindrical.

4. The extrusion press equipped with a forging moving slide block according to claim 1, characterized in that: The movable slider (10) is made of H11 steel or H13 steel.

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