Low-temperature non-ferrous extrusion direct forming machine, forming method and production line

Abstract

The present application belongs to the technical field of low-temperature non-ferrous metal extrusion forming, and particularly relates to a low-temperature non-ferrous metal extrusion direct forming machine, a forming method and a production line, which are convenient for extruding raw materials such as cutting materials, broken materials, corner materials, waste materials and broken materials into low-temperature non-ferrous metal finished products. First, the raw material variety is diversified. Second, most of the impurities on the surface of the raw material can be removed. Third, inert gas is introduced into the inner cavity of the extrusion cylinder, and the air in the inner cavity of the extrusion cylinder and the inner cavity of the forming die is discharged to prevent the metal from being oxidized. Fourth, the raw material is softened first and then extruded, and the pressure of each extrusion is reduced through multiple extrusions, thereby improving the processing reliability. Fifth, multi-stage feeding is realized, the technical problems of uneven feeding and insufficient feeding are solved, and the yield is increased. Sixth, the piston body extrudes the material to be formed in the extrusion direction L2, and the cutting edge of the scraper cuts off the softened raw material entering the material bin section from the discharge port of the feeding structure, thereby reducing the resistance received by the extrusion device. Seventh, the forming die is replaceable.

Description

Technical Field

[0001] This invention belongs to the field of low-temperature non-ferrous metal extrusion molding technology, specifically relating to a low-temperature non-ferrous metal extrusion direct forming machine, forming method and production line. Background Technology

[0002] Low-temperature non-ferrous metals, such as lead, zinc, and tin, are characterized by their softness and low melting point. The production of low-temperature non-ferrous metal strips using cold extrusion requires pressing ingots or bars through an extruder. Existing extruders employ a side-feeding and extrusion method. Specifically, the ingot or bar is first lifted to a position corresponding to the extruder's feed inlet, then pushed into the extruder's inner cavity from the side, and further extruded along the direction near the extruder's outlet to form strip. Because the extruder's inner cavity shape is adapted to the shape of the ingot or bar to be extruded, it cannot process raw materials such as cut materials, scrap, offcuts, waste, and broken pieces. These raw materials must be re-melted in a melting furnace, recast into ingots or bars using a continuous casting machine, traction machine, and shearing machine, and then extruded again into strip through an extruder. It has drawbacks such as inconvenient operation, numerous procedures, high loss of non-ferrous metals, energy waste, and large workload. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a low-temperature non-ferrous metal extrusion direct forming machine, forming method and production line, which facilitates the extrusion of raw materials such as cut materials, scraps, offcuts, waste materials and broken materials into low-temperature non-ferrous metal finished products.

[0004] The technical solution adopted by this invention to solve its technical problem is: a low-temperature non-ferrous metal extrusion direct forming machine, including a horizontally arranged extrusion cylinder and a feeding structure; the feeding structure has a feeding chamber connected to the extrusion cylinder, and the feeding structure conveys raw materials into the inner cavity of the extrusion cylinder in a direction close to the extrusion cylinder and perpendicular to the axis of the extrusion cylinder, forming a raw material conveying direction L1; an extrusion device is installed at the fixed end of the extrusion cylinder, the extrusion end of the extrusion device is located in the inner cavity of the extrusion cylinder, and a piston body adapted to the cross-section of the inner cavity of the extrusion cylinder is provided; a forming mold is installed at the mounting end of the extrusion cylinder, the inner cavity of the forming mold is connected to the inner cavity of the extrusion cylinder, and the end of the forming mold away from the extrusion cylinder is provided with its own inner cavity. The extrusion cylinder has a connected mold outlet; the piston body extrudes the material to be formed along the direction from the fixed end to the installation end, forming an extrusion direction L2; the extrusion cylinder has an initial feeding station A and a pre-heating initial station B, and the fixed end, the initial feeding station A, the pre-heating initial station B, and the installation end are arranged alternately in pairs along the extrusion direction L2; the section of the extrusion cylinder between the initial feeding station A and the pre-heating initial station B is the hopper section, and the section of the extrusion cylinder between the pre-heating initial station B and the installation end is the pre-heating section; the feed inlet of the feeding structure is away from the extrusion cylinder, and the discharge outlet of the feeding structure is located in the hopper section; a first heating device is provided on both the pre-heating section of the extrusion cylinder and the mold.

[0005] Furthermore, the feeding structure includes a vertical extrusion feeding structure and / or a horizontal extrusion feeding structure.

[0006] Furthermore, the vertical extrusion feeding structure includes a vertical feeding pipe connected to the extrusion cylinder, and a vertical extrusion feeding device used in conjunction with the vertical feeding pipe;

[0007] The vertical feeding pipe is located above the extrusion cylinder. The upper end of the vertical feeding pipe is open as the feed inlet of the feeding structure, and the lower end of the vertical feeding pipe is welded to the top wall of the extrusion cylinder and serves as the discharge outlet of the feeding structure.

[0008] Furthermore, the vertical extrusion feeding device includes a first drive motor and a first screw feeding mechanism; the first screw feeding mechanism is coaxially arranged in the inner cavity of the vertical feeding tube;

[0009] The upper end of the rotating shaft of the first spiral feeding mechanism is rotatably mounted on the first rotating seat, and the output shaft of the first drive motor is connected to the upper end of the rotating shaft of the first spiral feeding mechanism. The first drive motor is located outside the vertical feeding tube.

[0010] Furthermore, the upper end of the vertical feeding pipe is connected to a first feeding hopper, the top of the first feeding hopper is connected to a horizontal support plate, and one or both sides of the horizontal support plate have a feeding distance from the top opening edge of the first feeding hopper.

[0011] The first drive motor is mounted on a horizontal support plate, and a first bearing is mounted on the horizontal support plate, which serves as the first rotating seat.

[0012] Furthermore, the horizontal extrusion feeding structure includes a horizontal feeding pipe connected to the extrusion cylinder, and a horizontal extrusion feeding device used in conjunction with the horizontal feeding pipe.

[0013] The axial direction of the horizontal feeding pipe is perpendicular to the axial direction of the extrusion cylinder and is located on one side of the extrusion cylinder. One end of the horizontal feeding pipe is welded to the side wall of the extrusion cylinder and serves as the outlet of the feeding structure. The other end of the horizontal feeding pipe extends away from the axis of the extrusion cylinder. A feeding window is provided on the top wall of the end of the horizontal feeding pipe away from the extrusion cylinder, and the feeding window serves as the inlet of the feeding structure.

[0014] Furthermore, the horizontal extrusion feeding device includes a second drive motor and a second spiral feeding mechanism; the second spiral feeding mechanism is coaxially disposed in the inner cavity of the horizontal feeding tube;

[0015] The end of the rotating shaft of the second spiral feeding mechanism away from the extrusion cylinder is rotatably mounted on the second rotating seat. The output shaft of the second drive motor is connected to the end of the rotating shaft of the second spiral feeding mechanism away from the extrusion cylinder. The second drive motor is located outside the horizontal feeding pipe.

[0016] Furthermore, a support vertical plate is provided at the end of the horizontal feeding pipe away from the extrusion cylinder, and a second bearing is installed on the support vertical plate, which serves as the second rotating seat.

[0017] Furthermore, it also includes a vertically arranged material drop pipe; the lower end of the material drop pipe is connected to the horizontal feeding pipe and is connected through the feeding window.

[0018] Furthermore, both the vertical extrusion feeding structure and the horizontal extrusion feeding structure have a pre-extrusion reinforcing section arranged adjacent to the extrusion cylinder, which gradually reduces the space through which the raw material passes.

[0019] Furthermore, a second heating device is provided on both the vertical feeding pipe and the horizontal feeding pipe; the second heating device on the vertical feeding pipe is arranged corresponding to the pre-extrusion reinforcing section of the vertical extrusion feeding structure; the second heating device on the horizontal feeding pipe is arranged corresponding to the pre-extrusion reinforcing section of the horizontal extrusion feeding structure.

[0020] Furthermore, it also includes an inert gas inlet disposed on the side wall of the extrusion cylinder and connected to its own inner cavity. The inert gas inlet is located in the hopper section and close to the pre-stored heating initial station B. An inert gas inlet pipe located outside the extrusion cylinder is connected to the inert gas inlet.

[0021] Furthermore, a scraper is mounted on the end face of the piston body facing the forming mold. The scraper is arranged on the edge of the piston body and has a cutting edge adjacent to the inner wall of the extrusion cylinder and arranged circumferentially along the extrusion cylinder.

[0022] Furthermore, both the vertical extrusion feeding structure and the horizontal extrusion feeding structure have a slag removal section, and the slag removal section and the pre-extrusion reinforcing section are arranged sequentially along the raw material conveying direction L1.

[0023] Both the rotating shafts of the first and second spiral feeding mechanisms have slag collection blind holes located in the slag removal section, with the opening end of the slag collection blind hole facing away from the extrusion cylinder. Both the rotating shafts of the first and second spiral feeding mechanisms have multiple slag inlet holes located in the slag removal section, each of which communicates with the inner cavity of the slag collection blind hole. The slag inlet inlet on the rotating shaft of the first spiral feeding mechanism is located within the first spiral groove formed by the spiral blades of the first spiral feeding mechanism; the slag inlet on the rotating shaft of the second spiral feeding mechanism is located within the second spiral groove formed by the spiral blades of the second spiral feeding mechanism.

[0024] Both the vertical and horizontal feeding pipes are provided with multiple slag discharge holes; the multiple slag discharge holes on the vertical feeding pipe are evenly distributed in the slag removal section of the vertical extrusion feeding structure; the multiple slag discharge holes on the horizontal feeding pipe are evenly distributed in the slag removal section of the horizontal extrusion feeding structure.

[0025] The forming method uses a low-temperature non-ferrous metal extrusion direct forming machine, and includes the following steps:

[0026] S1, the end face of the piston body facing the forming mold is located at the initial feeding position A, and then the raw material is conveyed to the hopper section of the extrusion cylinder along the raw material conveying direction L1 through the feeding structure;

[0027] S2, the feeding structure stops conveying raw materials, and the extrusion device drives the piston to extrude the material to be formed along the extrusion direction L2;

[0028] S3, the extrusion device drives the piston body to retract towards the end face of the forming mold to the initial feeding position A, repeating steps S1 and S2 to fill the pre-stored heating section and the inner cavity of the forming mold with the material to be formed. The first heating device heats the material to be formed in the pre-stored heating section and the forming mold to make it molten.

[0029] S4, the extrusion device drives the piston body to extrude the molten material to be formed along the extrusion direction L2, so that the low-temperature non-ferrous metal finished product is output from the discharge port of the forming mold.

[0030] Furthermore, the pre-heating section includes a pre-heating unit, which is provided with at least two sections, and the at least two pre-heating units are arranged adjacent to each other along the axial direction of the extrusion cylinder.

[0031] In step S4, the extrusion device drives the piston body to extrude the molten material to be formed along the extrusion direction L2, so that the low-temperature non-ferrous metal finished product is output from the discharge port of the forming mold, and at least one section of the pre-stored heating unit retains the material to be formed along the direction from the installation end to the fixed end.

[0032] The production line includes a low-temperature non-ferrous metal extrusion direct forming machine, as well as a first traction machine, a looper mechanism, a second traction machine, a cold rolling mill, an edge trimmer, a shearing machine, and a coiler. The low-temperature non-ferrous metal extrusion direct forming machine, the first traction machine, the looper mechanism, the second traction machine, the cold rolling mill, the edge trimmer, the shearing machine, and the coiler are arranged sequentially along the strip output direction L3.

[0033] Compared with existing technologies, the beneficial effects of this invention are: This invention provides a low-temperature non-ferrous metal extrusion direct forming machine, forming method, and production line, which facilitates the extrusion of raw materials such as cut materials, scraps, offcuts, waste materials, and broken materials into low-temperature non-ferrous metal finished products. This results in low-temperature non-ferrous metal finished products with high density, good quality, and fewer impurities. It also has the following advantages:

[0034] First, the raw materials are diverse. The raw materials can be cut materials, scraps, offcuts, waste materials and broken materials, as well as blocks of materials cut from ingots or bars.

[0035] Secondly, it can not only remove most of the impurities on the surface of the raw materials, but also discharge the gas in the raw materials that have been pre-compressed in the vertical and horizontal feeding pipes, resulting in fewer impurities and better quality in the finished low-temperature non-ferrous metal products.

[0036] Third, inert gas is introduced into the inner cavity of the extrusion cylinder to remove air from the inner cavity of the extrusion cylinder and the inner cavity of the forming mold, thus preventing metal oxidation.

[0037] Fourth, softening before extrusion: the material to be extruded in the pre-heated section and forming mold is heated to further soften it before being extruded by the extrusion device. Multiple extrusions reduce the pressure of each extrusion and improve processing reliability.

[0038] Fifth, the extrusion cylinder can be equipped with a vertical extrusion feeding structure, a horizontal extrusion feeding structure, and a raw material tilting extrusion conveying mechanism at the same time to realize multi-stage feeding, solve the technical problems of uneven feeding and insufficient feeding, and increase output.

[0039] Sixth, the piston body extrudes the material to be shaped along the extrusion direction L2, and the blade of the scraper cuts off the softened raw material that has entered the hopper section from the discharge port of the feeding structure, reducing the resistance experienced by the extrusion device.

[0040] Seventh, the forming mold is replaceable, and it can process both strip and profile. Attached Figure Description

[0041] Figure 1 This is a three-dimensional structural schematic diagram of one embodiment of the present invention;

[0042] Figure 2 yes Figure 1 The front view schematic diagram of the embodiment shown;

[0043] Figure 3 yes Figure 2 A cross-sectional view along the section line CC;

[0044] Figure 4 This is a cross-sectional view of the horizontal extrusion feeding structure and the extrusion cylinder when the feeding structure in this invention includes a horizontal extrusion feeding structure.

[0045] Figure 5 This is a side view schematic diagram of another embodiment of the present invention;

[0046] Figure 6 This is a schematic diagram showing that the slag collection blind hole and the slag inlet hole are located on the rotating shaft of the first spiral feeding mechanism, and the slag outlet hole is located on the vertical feeding pipe.

[0047] Figure 7 This is a schematic diagram showing that the slag collection blind hole and slag inlet hole are located on the rotating shaft of the second spiral feeding mechanism, and the slag outlet hole is located on the horizontal feeding pipe.

[0048] Figure 8 This is a schematic diagram of the production line structure;

[0049] Figure label:

[0050] 1-Extrusion cylinder; 101-Hopper section; 102-Pre-heating section; 103-Fixed end; 104-Mounting end; 105-Air inlet;

[0051] 2-Vertical extrusion feeding structure; 201-Vertical feeding pipe; 202-First drive motor; 203-First screw feeding mechanism; 2031-Rotating shaft of the first screw feeding mechanism; 2032-Screw blade of the first screw feeding mechanism; 204-First feed hopper; 205-Horizontal support plate; 206-First gear set;

[0052] 3-Horizontal extrusion feeding structure; 301-Horizontal feeding pipe; 3011-Feeding window; 302-Second drive motor; 303-Second spiral feeding mechanism; 3031-Rotating shaft of the second spiral feeding mechanism; 3032-Spiral blade of the second spiral feeding mechanism; 304-Supporting vertical plate; 305-Discharge pipe; 306-Second feeding hopper; 307-Second gear set;

[0053] 4-Extrusion device; 401-Piston body; 402-Scraper;

[0054] 5-Forming die; 6-Forming die outlet; 7-Slag outlet; 8-Pre-extrusion reinforcing section; 9-Slag removal section; 10-Slag collection blind hole; 11-Slag inlet hole; 12-First heating device; 13-Second heating device; 14-Low-temperature non-ferrous metal extrusion direct forming machine; 15-First traction machine; 16-Looper mechanism; 17-Second traction machine; 18-Cold rolling mill; 19-Edge trimmer; 20-Shearing machine; 21-Winding machine. Detailed Implementation

[0055] The following is in conjunction with the appendix Figure 1 , 2 The invention is further illustrated by references 3, 4, 5, 6, 7, and 8, as well as by the embodiments.

[0056] A low-temperature non-ferrous metal extrusion direct forming machine includes a horizontally arranged extrusion cylinder 1 and a feeding structure. The feeding structure has a feeding chamber connected to the extrusion cylinder 1. The feeding structure conveys raw materials into the inner cavity of the extrusion cylinder 1 in a direction close to the extrusion cylinder 1 and perpendicular to the axis of the extrusion cylinder 1, forming a raw material conveying direction L1. An extrusion device 4 is installed on the fixed end 103 of the extrusion cylinder 1. The extrusion end of the extrusion device 4 is located inside the inner cavity of the extrusion cylinder 1 and is provided with a piston body 401 adapted to the cross-section of the inner cavity of the extrusion cylinder 1. A forming mold 5 is installed on the mounting end 104 of the extrusion cylinder 1. The inner cavity of the forming mold 5 is connected to the inner cavity of the extrusion cylinder 1. The end of the forming mold 5 away from the extrusion cylinder 1 is provided with a forming mold outlet 6 connected to its own inner cavity. The piston... The body 401 extrudes the material to be formed along the direction from the fixed end 103 to the mounting end 104, forming an extrusion direction L2; the extrusion cylinder 1 has an initial feeding station A and a pre-heating initial station B, and the fixed end 103, the initial feeding station A, the pre-heating initial station B and the mounting end 104 are arranged alternately in pairs along the extrusion direction L2; the section of the extrusion cylinder 1 between the initial feeding station A and the pre-heating initial station B is the hopper section 101, and the section of the extrusion cylinder 1 between the pre-heating initial station B and the mounting end 104 is the pre-heating section 102; the feed inlet of the feeding structure is away from the extrusion cylinder 1, and the discharge outlet of the feeding structure is located in the hopper section 101; the pre-heating section 102 of the extrusion cylinder 1 and the forming mold 5 are both provided with a first heating device 12.

[0057] The forming method uses a low-temperature non-ferrous metal extrusion direct forming machine, and includes the following steps:

[0058] S1, the end face of the piston body 401 facing the forming mold 5 is located at the initial feeding position A, and then the raw material is conveyed to the material hopper section 101 of the extrusion cylinder 1 along the raw material conveying direction L1 through the feeding structure.

[0059] S2, the feeding structure stops conveying raw materials, and the extrusion device 4 drives the piston body 401 to extrude the material to be formed along the extrusion direction L2.

[0060] S3, the extrusion device 4 drives the piston body 401 to retract toward the end face of the molding die 5 to the initial feeding position A, repeating steps S1 and S2, so that the material to be formed fills the pre-stored heating section 102 and the inner cavity of the molding die 5, and the first heating device 12 heats the material to be formed in the pre-stored heating section 102 and the molding die 5 to make it melt.

[0061] S4, the extrusion device 4 drives the piston body 401 to extrude the molten material to be formed along the extrusion direction L2, so that the low-temperature non-ferrous metal finished product is output from the discharge port 6 of the forming mold.

[0062] Low-temperature non-ferrous metal products can be either strips or profiles.

[0063] Preferably, the pre-heating section 102 includes a pre-heating unit, which has at least two sections arranged adjacent to each other along the axial direction of the extrusion cylinder 1. In step S4, the extrusion device 4 drives the piston body 401 to extrude the molten material to be formed along the extrusion direction L2, so that the low-temperature non-ferrous metal product is output from the discharge port 6 of the forming mold. Along the direction from the mounting end 104 to the fixed end 103, at least one pre-heating unit retains the material to be formed. Extending the heating time of the first heating device 12 on the pre-heating section 102 and the material to be formed in the forming mold 5 makes the heating more thorough. Furthermore, through the multiple extrusions of the piston body 401, air bubbles in the molten material to be formed can be effectively eliminated, resulting in high density and good quality of the low-temperature non-ferrous metal product output from the discharge port 6 of the forming mold. It should be noted that when the extrusion device 4 drives the piston body 401 to extrude the molten material to be formed along the extrusion direction L2, the feeding structure suspends the conveying of raw materials.

[0064] The extrusion cylinder 1 is mounted on the frame.

[0065] The mounting end 104 of the extrusion cylinder 1 is detachably connected to the forming mold 5 through a threaded structure and a snap-fit ​​structure.

[0066] The first heating device 12 can be an electric heating wire, an inductor coil, an electric heating rod, etc.

[0067] The piston body 401 is adapted to the cross-section of the inner cavity of the extrusion cylinder 1. Specifically, the cross-section of the extrusion cylinder 1 perpendicular to its own axis is the same shape and size as the piston body 401.

[0068] The feeding structure includes a vertical extrusion feeding structure, a horizontal extrusion feeding structure, and / or an inclined extrusion feeding structure.

[0069] Preferably, the feeding structure includes a vertical extrusion feeding structure 2 and / or a horizontal extrusion feeding structure 3.

[0070] In Example 1, the feeding structure only includes the vertical extrusion feeding structure 2. This can easily lead to technical problems such as uneven or insufficient feeding.

[0071] In Example 2, the feeding structure includes only one set of horizontal extrusion feeding structures 3. This easily leads to technical problems such as uneven and insufficient material supply. Two sets of horizontal extrusion feeding structures 3 can be provided, with the two sets of horizontal extrusion feeding structures 3 having the axis of symmetry of the extrusion cylinder 1 as the axis of symmetry, forming an axially symmetrical structure. This solves the technical problems of uneven and insufficient material supply and increases output.

[0072] In Example 3, the feeding structure includes both a vertical extrusion feeding structure 2 and a horizontal extrusion feeding structure 3. The horizontal extrusion feeding structure 3 can be configured as one set or two sets. When two sets of the horizontal extrusion feeding structure 3 are configured, the two sets of horizontal extrusion feeding structures 3 are axially symmetrical about the axis of the extrusion cylinder 1. This solves the technical problems of uneven and insufficient material supply, increasing output.

[0073] Specifically, the vertical extrusion feeding structure 2 includes a vertical feeding pipe 201 connected to the extrusion cylinder 1, and a vertical extrusion feeding device used in conjunction with the vertical feeding pipe 201. The vertical feeding pipe 201 is located above the extrusion cylinder 1, with its upper end serving as the feed inlet of the feeding structure and its lower end welded to the top wall of the extrusion cylinder 1, serving as the discharge outlet of the feeding structure. In this case, the inner cavity of the vertical feeding pipe 201 serves as the feeding chamber of the feeding structure.

[0074] The vertical extrusion feeding device can be a hydraulic cylinder, a pneumatic cylinder, an electric push rod, etc. Preferably, the vertical extrusion feeding device includes a first drive motor 202 and a first spiral feeding mechanism 203; the first spiral feeding mechanism 203 is coaxially disposed in the inner cavity of the vertical feeding tube 201; the upper end of the rotating shaft 2031 of the first spiral feeding mechanism is rotatably mounted on a first rotating seat, and the output shaft of the first drive motor 202 is connected to the upper end of the rotating shaft 2031 of the first spiral feeding mechanism. The first drive motor 202 is located outside the vertical feeding tube 201. The first rotating seat provides rotational support for the rotating shaft 2031 of the first spiral feeding mechanism. The first drive motor 202 drives the rotating shaft 2031 of the first spiral feeding mechanism to rotate around its own axis. Through the cooperation of the first spiral feeding mechanism 203 and the vertical feeding tube 201, the raw material is conveyed into the hopper section 101 of the extrusion cylinder 1.

[0075] The first spiral feeding mechanism 203 pre-extrudes the raw material in the inner cavity of the vertical feeding pipe 201.

[0076] The first drive motor 202 can be mounted on a frame. Preferably, the upper end of the vertical feeding pipe 201 is connected to a first feed hopper 204, and the top of the first feed hopper 204 is connected to a horizontal support plate 205. One or both sides of the horizontal support plate 205 have a feeding gap with the top opening edge of the first feed hopper 204. The first drive motor 202 is mounted on the horizontal support plate 205, and a first bearing is mounted on the horizontal support plate 205, which serves as the first rotating seat. By setting the first feed hopper 204, it is convenient to feed raw materials. The first feed hopper 204 provides connecting support for the horizontal support plate 205. The horizontal support plate 205 is welded to the first feed hopper 204. The horizontal support plate 205 provides mounting support for the rotating shaft 2031 of the first drive motor 202 and the first screw feeding mechanism.

[0077] Preferably, the horizontal support plate 205 is disposed in the middle of the top opening of the first feed hopper 204, and both sides of the horizontal support plate 205 have a feeding gap with the edge of the top opening of the first feed hopper 204. The raw material enters the first feed hopper 204 through the feeding gap.

[0078] The inner wall of the first feed hopper 204 is provided with a first magnet layer for adsorbing iron filings in the raw material.

[0079] The output shaft of the first drive motor 202 and the upper end of the rotating shaft 2031 of the first screw feeding mechanism can be connected by a spline drive. Preferably, the output shaft of the first drive motor 202 and the upper end of the rotating shaft 2031 of the first screw feeding mechanism are connected by a first gear set 206.

[0080] Specifically, the horizontal extrusion feeding structure 3 includes a horizontal feeding pipe 301 connected to the extrusion cylinder 1, and a horizontal extrusion feeding device used in conjunction with the horizontal feeding pipe 301. The axial direction of the horizontal feeding pipe 301 is perpendicular to the axial direction of the extrusion cylinder 1 and is located on one side of the extrusion cylinder 1. One end of the horizontal feeding pipe 301 is welded to the side wall of the extrusion cylinder 1 and serves as the outlet of the feeding structure. The other end of the horizontal feeding pipe 301 extends away from the axis of the extrusion cylinder 1. A feed window 3011 is provided on the top wall of the end of the horizontal feeding pipe 301 away from the extrusion cylinder 1, and the feed window 3011 serves as the feed inlet of the feeding structure. At this time, the inner cavity of the horizontal feeding pipe 301 serves as the feeding cavity of the feeding structure.

[0081] The horizontal extrusion feeding device can be a hydraulic cylinder, a pneumatic cylinder, an electric push rod, etc. Preferably, the horizontal extrusion feeding device includes a second drive motor 302 and a second spiral feeding mechanism 303; the second spiral feeding mechanism 303 is coaxially arranged in the inner cavity of the horizontal feeding pipe 301; the end of the rotating shaft 3031 of the second spiral feeding mechanism away from the extrusion cylinder 1 is rotatably mounted on a second rotating seat, and the output shaft of the second drive motor 302 is drively connected to the end of the rotating shaft 3031 of the second spiral feeding mechanism away from the extrusion cylinder 1, and the second drive motor 302 is located outside the horizontal feeding pipe 301. The second rotating seat provides rotational support for the rotating shaft 3031 of the second spiral feeding mechanism. The second drive motor 302 drives the rotating shaft 3031 of the second spiral feeding mechanism to rotate, and through the cooperation of the second spiral feeding mechanism and the horizontal feeding pipe 301, the raw material is conveyed into the hopper section 101 of the extrusion cylinder 1. The second spiral feeding mechanism 303 pre-extrudes the raw material in the inner cavity of the horizontal feeding pipe 301.

[0082] Preferably, a support vertical plate 304 is provided at the end of the horizontal feed pipe 301 away from the extrusion cylinder 1. A second bearing is mounted on the support vertical plate 304, which serves as the second rotating seat. The second drive motor 302 is mounted on the frame. The support vertical plate 304 provides mounting support for the rotating shaft 3031 of the second screw feeding mechanism. Specifically, the end of the horizontal feed pipe 301 away from the extrusion cylinder 1 is welded to the support vertical plate 304.

[0083] The output shaft of the second drive motor 302 and the end of the rotating shaft 3031 of the second screw feeding mechanism away from the extrusion cylinder 1 can be connected by a spline drive. Preferably, the output shaft of the second drive motor 302 and the end of the rotating shaft 3031 of the second screw feeding mechanism away from the extrusion cylinder 1 are connected by a second gear set 307.

[0084] To facilitate the placement of raw materials into the horizontal feeding pipe 301, a vertically arranged drop pipe 305 is preferably included; the lower end of the drop pipe 305 is connected to the horizontal feeding pipe 301 and communicates with it through the feed window 3011. Specifically, the lower end of the drop pipe 305 is welded to the edge of the feed window 3011 of the horizontal feeding pipe 301.

[0085] As a further preferred embodiment, the upper end of the discharge pipe 305 is connected to a second feed hopper 306. A second magnet layer is provided on the inner wall of the second feed hopper 306 for adsorbing iron filings in the raw material.

[0086] Preferably, both the vertical extrusion feeding structure 2 and the horizontal extrusion feeding structure 3 have a pre-extrusion reinforcing section 8 arranged adjacent to the extrusion cylinder 1, which gradually reduces the space through which the raw material passes. By setting the pre-extrusion reinforcing section 8, it is beneficial to further pre-compact the loose raw material and eliminate the gaps between the loose raw materials.

[0087] The pre-extrusion reinforcing section 8 has multiple implementation methods, including but not limited to the following two:

[0088] In Embodiment 1, the vertical feeding pipe 201 is a vertically arranged cylindrical tube. Along the raw material conveying direction L1, the blade spacing of the spiral blades 2032 of the first spiral feeding mechanism gradually decreases in the pre-extrusion reinforcing section 8 of the vertical extrusion feeding structure 2. The horizontal feeding pipe 301 is a horizontally arranged cylindrical tube. Along the raw material conveying direction L1, the blade spacing of the spiral blades 3032 of the second spiral feeding mechanism gradually decreases in the pre-extrusion reinforcing section 8 of the horizontal extrusion feeding structure 3.

[0089] In Example 2, the vertical feeding pipe 201 is a vertically arranged cylindrical tube. Along the raw material conveying direction L1, the spiral blades 2032 of the first spiral feeding mechanism are located at the outer edge of the pre-extrusion reinforcing section 8 of the vertical extrusion feeding structure 2, and the distance between them and the outer circumferential surface of the rotating shaft 2031 of the first spiral feeding mechanism gradually decreases. The horizontal feeding pipe 301 is a horizontally arranged cylindrical tube. Along the raw material conveying direction L1, the spiral blades 3032 of the second spiral feeding mechanism are located at the outer edge of the pre-extrusion reinforcing section 8 of the horizontal extrusion feeding structure 3, and the distance between them and the outer circumferential surface of the rotating shaft 3031 of the second spiral feeding mechanism gradually decreases.

[0090] As a further preferred embodiment, both the vertical feed pipe 201 and the horizontal feed pipe 301 are funnel-shaped cylindrical structures with a larger inner diameter at one end and a smaller inner diameter at the other end. The lower end of the funnel-shaped vertical feed pipe 201 has a smaller inner diameter, while the upper end has a larger inner diameter. The upper end of the funnel-shaped horizontal feed pipe 301 has a smaller inner diameter at the end connected to the extrusion cylinder 1, while the end furthest from the extrusion cylinder 1 has a larger inner diameter. By further reducing the space for material passage, the pre-compression effect on the material is improved.

[0091] Preferably, both the vertical feeding pipe 201 and the horizontal feeding pipe 301 are equipped with a second heating device 13; the second heating device 13 on the vertical feeding pipe 201 is arranged corresponding to the pre-extrusion reinforcing section 8 of the vertical extrusion feeding structure 2; the second heating device 13 on the horizontal feeding pipe 301 is arranged corresponding to the pre-extrusion reinforcing section 8 of the horizontal extrusion feeding structure 3. The pre-compressed raw material is softened by heating with the second heating device 13, which can further improve the compression effect of the raw material.

[0092] The second heating device 13 can be an electric heating wire, an inductor coil, an electric heating rod, etc.

[0093] The extrusion device 4 can be a hydraulic piston cylinder, a pneumatic piston cylinder, an electric push rod, etc.

[0094] Preferably, the device further includes an inert gas inlet 105 disposed on the side wall of the extrusion cylinder 1 and connected to its own inner cavity. The inert gas inlet 105 is located in the hopper section 101 and close to the pre-stored heating initial station B. An inert gas inlet pipe located outside the extrusion cylinder 1 is connected to the inert gas inlet 105. Inert gas is introduced into the inner cavity of the extrusion cylinder 1 through the inert gas inlet 105 to expel air from the inner cavity of the extrusion cylinder 1 and the forming mold 5, thereby preventing metal oxidation. The inert gas is nitrogen, helium, etc.

[0095] Preferably, a scraper 402 is mounted on the end face of the piston body 401 facing the forming mold 5. The scraper 402 is arranged along the edge of the piston body 401 and has a cutting edge adjacent to the inner wall of the extrusion cylinder 1 and arranged circumferentially along the extrusion cylinder 1. The piston body 401 extrudes the material to be formed along the extrusion direction L2, and the cutting edge of the scraper 402 cuts off the softened raw material entering the material bin section 101 from the outlet of the feeding structure, reducing the resistance experienced by the extrusion device 4.

[0096] Preferably, both the vertical extrusion feeding structure 2 and the horizontal extrusion feeding structure 3 have a slag removal section 9. Along the raw material conveying direction L1, the slag removal section 9 and the pre-extrusion reinforcing section 8 are arranged sequentially. Both the rotating shaft 2031 of the first spiral feeding mechanism and the rotating shaft 3031 of the second spiral feeding mechanism have slag collection blind holes 10 located in the slag removal section 9, with the opening end of the slag collection blind hole 10 facing away from the extrusion cylinder 1. Both the rotating shaft 2031 of the first spiral feeding mechanism and the rotating shaft 3031 of the second spiral feeding mechanism have multiple slag inlet holes 11 located in the slag removal section 9, and each slag inlet hole 11 communicates with the inner cavity of the slag collection blind hole 10. The slag inlet 11 on the rotating shaft 2031 of the first spiral feeding mechanism is located in the first spiral groove formed by the spiral blades 2032 of the first spiral feeding mechanism; the slag inlet 11 on the rotating shaft 3031 of the second spiral feeding mechanism is located in the second spiral groove formed by the spiral blades 3032 of the second spiral feeding mechanism; both the vertical feeding pipe 201 and the horizontal feeding pipe 301 are provided with multiple slag outlet holes 7; the multiple slag outlet holes 7 on the vertical feeding pipe 201 are evenly distributed in the slag removal section 9 of the vertical extrusion feeding structure 2; the multiple slag outlet holes 7 on the horizontal feeding pipe 301 are evenly distributed in the slag removal section 9 of the horizontal extrusion feeding structure 3. When the raw material surface has impurities such as scale, dust, and dirt, during the conveying process through the vertical feeding pipe 201 and the horizontal feeding pipe 301, the raw material is subjected to compression and friction. The scale on the raw material surface breaks off, and the dust and dirt fall off, then enter the slag collection blind hole 10 through the slag inlet hole 11 for collection, and are discharged through the slag outlet hole 7. This process removes most of the surface impurities from the raw material, resulting in less impurity and better quality finished profiles after subsequent processing. The slag outlet hole 7 also serves to vent air.

[0097] like Figure 8 As shown, the production line includes a low-temperature non-ferrous metal extrusion direct forming machine, and also includes a first traction machine 14, a looper mechanism 16, a second traction machine 17, a cold rolling mill 18, an edge trimmer 19, a shearing machine 20, and a coiler 21. The low-temperature non-ferrous metal extrusion direct forming machine 14, the first traction machine 15, the looper mechanism 16, the second traction machine 17, the cold rolling mill 18, the edge trimmer 19, the shearing machine 20, and the coiler 21 are arranged sequentially along the strip output direction L3.

[0098] The raw material is extruded into strip by the low-temperature non-ferrous metal extrusion direct forming machine 14. The strip is pulled into the looper mechanism 16 by the first traction machine 15, then into the second traction machine 17, and then into the cold rolling mill 18 for rolling. The strip is rolled to the required thickness. Then the edge trimmer 19 cuts off the two excess sides in the width direction of the strip so that the strip meets both the thickness and width requirements. Finally, it is wound up by the winding machine 21. When the winding machine 21 wound the strip to the appropriate thickness, the strip is cut by the shearing machine 20.

[0099] Preferably, the first tractor 15 is a tracked tractor.

[0100] Preferably, the second traction machine 17 is a double-roller traction machine.

[0101] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent changes made to the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A low-temperature non-ferrous metal extrusion direct forming machine, characterized in that, The system includes a horizontally arranged extrusion cylinder (1) and a feeding structure; the feeding structure has a feeding chamber connected to the extrusion cylinder (1), and the feeding structure feeds raw materials into the inner cavity of the extrusion cylinder (1) in a direction close to the extrusion cylinder (1) and perpendicular to the axis of the extrusion cylinder (1), forming a raw material feeding direction L1; an extrusion device (4) is installed on the fixed end (103) of the extrusion cylinder (1), the extrusion end of the extrusion device (4) is located in the inner cavity of the extrusion cylinder (1), and a piston body (401) adapted to the cross section of the inner cavity of the extrusion cylinder (1) is provided; a forming mold (5) is installed on the mounting end (104) of the extrusion cylinder (1), the inner cavity of the forming mold (5) is connected to the inner cavity of the extrusion cylinder (1), and a forming mold outlet (6) connected to its own inner cavity is provided on the end of the forming mold (5) away from the extrusion cylinder (1); the piston body (401) is installed on the upper end (104) of the extrusion cylinder (1); the piston body (401) is installed on the lower end (104) of the extrusion cylinder (1); the piston body (401) is installed on the upper ... 1) The material to be formed is extruded along the direction from the fixed end (103) to the installation end (104), forming an extrusion direction L2; the extrusion cylinder (1) has an initial feeding station A and a pre-heating initial station B, and the fixed end (103), the initial feeding station A, the pre-heating initial station B and the installation end (104) are arranged alternately in pairs along the extrusion direction L2; the section of the extrusion cylinder (1) between the initial feeding station A and the pre-heating initial station B is the hopper section (101), and the section of the extrusion cylinder (1) between the pre-heating initial station B and the installation end (104) is the pre-heating section (102); the feed port of the feeding structure is away from the extrusion cylinder (1), and the discharge port of the feeding structure is located in the hopper section (101); the pre-heating section (102) of the extrusion cylinder (1) and the forming mold (5) are both equipped with a first heating device (12). The feeding structure includes a vertical extrusion feeding structure (2) and / or a horizontal extrusion feeding structure (3). The vertical extrusion feeding structure (2) includes a vertical feeding pipe (201) connected to the extrusion cylinder (1). The vertical extrusion feeding device includes a first drive motor (202) and a first spiral feeding mechanism (203). The horizontal extrusion feeding structure (3) includes a horizontal feeding pipe (301) connected to the extrusion cylinder (1). The horizontal extrusion feeding device includes a second drive motor (302) and a second spiral feeding mechanism (303). Both the vertical extrusion feeding structure (2) and the horizontal extrusion feeding structure (3) have a slag removal section (9). Both the rotating shaft (2031) of the first screw feeding mechanism and the rotating shaft (3031) of the second screw feeding mechanism are provided with slag collection blind holes (10) located in the slag removal section (9), and the opening end of the slag collection blind hole (10) is opposite to the extrusion cylinder (1); both the rotating shaft (2031) of the first screw feeding mechanism and the rotating shaft (3031) of the second screw feeding mechanism are provided with multiple slag inlet holes (11) located in the slag removal section (9), and each slag inlet hole (11) is connected to the inner cavity of the slag collection blind hole (10); the inlet of the slag inlet hole (11) on the rotating shaft (2031) of the first screw feeding mechanism is located in the first spiral groove formed by the spiral blade (2032) of the first screw feeding mechanism; the inlet of the slag inlet hole (11) on the rotating shaft (3031) of the second screw feeding mechanism is located in the second spiral groove formed by the spiral blade (3032) of the second screw feeding mechanism. Both the vertical feeding pipe (201) and the horizontal feeding pipe (301) are provided with multiple slag discharge holes (7); the multiple slag discharge holes (7) on the vertical feeding pipe (201) are evenly distributed in the slag removal section (9) of the vertical extrusion feeding structure (2); the multiple slag discharge holes (7) on the horizontal feeding pipe (301) are evenly distributed in the slag removal section (9) of the horizontal extrusion feeding structure (3).

2. The low-temperature non-ferrous metal extrusion direct forming machine as described in claim 1, characterized in that: And a vertical extrusion feeding device used in conjunction with the vertical feeding pipe (201); The vertical feeding pipe (201) is located above the extrusion cylinder (1). The upper end of the vertical feeding pipe (201) is open as the feed inlet of the feeding structure. The lower end of the vertical feeding pipe (201) is welded to the top wall of the extrusion cylinder (1) and serves as the discharge outlet of the feeding structure.

3. The low-temperature non-ferrous metal extrusion direct forming machine as described in claim 2, characterized in that: The first spiral feeding mechanism (203) is coaxially disposed in the inner cavity of the vertical feeding tube (201); The upper end of the rotating shaft (2031) of the first spiral feeding mechanism is rotatably mounted on the first rotating seat. The output shaft of the first drive motor (202) is connected to the upper end of the rotating shaft (2031) of the first spiral feeding mechanism. The first drive motor (202) is located outside the vertical feeding pipe (201).

4. The low-temperature non-ferrous metal extrusion direct forming machine as described in claim 3, characterized in that: The upper end of the vertical feeding pipe (201) is connected to a first feeding hopper (204), and the top of the first feeding hopper (204) is connected to a horizontal support plate (205). One or both sides of the horizontal support plate (205) have a feeding distance from the top opening edge of the first feeding hopper (204). The first drive motor (202) is mounted on a horizontal support plate (205), and a first bearing is mounted on the horizontal support plate (205), which serves as the first rotating seat.

5. The low-temperature non-ferrous metal extrusion direct forming machine as described in claim 4, characterized in that: And a horizontal extrusion feeding device used in conjunction with the horizontal feed tube (301); The axial direction of the horizontal feeding pipe (301) is perpendicular to the axial direction of the extrusion cylinder (1) and is located on one side of the extrusion cylinder (1). One end of the horizontal feeding pipe (301) is welded to the side wall of the extrusion cylinder (1) and serves as the outlet of the feeding structure. The other end of the horizontal feeding pipe (301) extends away from the axis of the extrusion cylinder (1). A feeding window (3011) is provided on the top wall of the end of the horizontal feeding pipe (301) away from the extrusion cylinder (1), and the feeding window (3011) serves as the inlet of the feeding structure.

6. The low-temperature non-ferrous metal extrusion direct forming machine as described in claim 5, characterized in that: The second spiral feeding mechanism (303) is coaxially disposed in the inner cavity of the horizontal feeding pipe (301); The rotating shaft (3031) of the second spiral feeding mechanism is rotatably mounted on the second rotating seat at one end away from the extrusion cylinder (1). The output shaft of the second drive motor (302) is connected to the rotating shaft (3031) of the second spiral feeding mechanism at one end away from the extrusion cylinder (1). The second drive motor (302) is located outside the horizontal feeding pipe (301).

7. The low-temperature non-ferrous metal extrusion direct forming machine as described in claim 6, characterized in that: The horizontal feeding pipe (301) is provided with a support vertical plate (304) at one end away from the extrusion cylinder (1). A second bearing is installed on the support vertical plate (304), and the second bearing serves as the second rotating seat.

8. The low-temperature non-ferrous metal extrusion direct forming machine as described in claim 5, characterized in that: It also includes a vertically arranged drop pipe (305); the lower end of the drop pipe (305) is connected to the horizontal feeding pipe (301) and is connected through the feeding window (3011).

9. The low-temperature non-ferrous metal extrusion direct forming machine as described in claim 6, characterized in that: Both the vertical extrusion feeding structure (2) and the horizontal extrusion feeding structure (3) have a pre-extrusion reinforcing section (8) arranged adjacent to the extrusion cylinder (1) and which gradually reduces the space through which the raw material passes.

10. The low-temperature non-ferrous metal extrusion direct forming machine as described in claim 9, characterized in that: A second heating device (13) is provided on both the vertical feeding pipe (201) and the horizontal feeding pipe (301); the second heating device (13) on the vertical feeding pipe (201) is arranged correspondingly to the pre-extrusion reinforcing section (8) of the vertical extrusion feeding structure (2); the second heating device (13) on the horizontal feeding pipe (301) is arranged correspondingly to the pre-extrusion reinforcing section (8) of the horizontal extrusion feeding structure (3).

11. The low-temperature non-ferrous metal extrusion direct forming machine as described in claim 1, characterized in that: It also includes an inert gas inlet (105) disposed on the side wall of the extrusion cylinder (1) and connected to its own inner cavity. The inert gas inlet (105) is located in the hopper section (101) and close to the pre-stored heating initial station B. An inert gas inlet pipe located outside the extrusion cylinder (1) is connected to the inert gas inlet (105).

12. The low-temperature non-ferrous metal extrusion direct forming machine as described in claim 1, characterized in that: A scraper (402) is mounted on the end face of the piston body (401) facing the molding die (5). The scraper (402) is arranged on the edge of the piston body (401) and has a cutting edge that is adjacent to the inner wall of the extrusion cylinder (1) and arranged circumferentially along the extrusion cylinder (1).

13. The low-temperature non-ferrous metal extrusion direct forming machine as described in claim 9, characterized in that: Along the raw material conveying direction L1, the slag removal section (9) and the pre-extrusion reinforcement section (8) are arranged in sequence.

14. A forming method, employing a low-temperature non-ferrous metal extrusion direct forming machine as described in any one of claims 1-13, characterized in that: Including steps, S1, the end face of the piston body (401) facing the molding die (5) is located at the initial feeding position A, and then the raw material is conveyed to the hopper section (101) of the extrusion cylinder (1) along the raw material conveying direction L1 through the feeding structure; S2, the feeding structure stops conveying raw materials, and the extrusion device (4) drives the piston (401) to extrude the material to be formed along the extrusion direction L2; S3, the extrusion device (4) drives the piston body (401) to retract toward the end face of the molding die (5) to the initial feeding position A, repeating steps S1 and S2, so that the material to be formed fills the pre-stored heating section (102) and the inner cavity of the molding die (5), and the first heating device (12) heats the material to be formed in the pre-stored heating section (102) and the molding die (5) to make it into a molten state; S4, the extrusion device (4) drives the piston body (401) to extrude the molten material to be formed along the extrusion direction L2, so that the low-temperature non-ferrous metal finished product is output from the discharge port (6) of the forming mold.

15. The molding method as described in claim 14, characterized in that: The pre-heating section (102) includes a pre-heating unit, which is provided with at least two sections, and the at least two pre-heating units are arranged adjacent to each other along the axial direction of the extrusion cylinder (1). In step S4, the extrusion device (4) drives the piston body (401) to extrude the molten material to be formed along the extrusion direction L2, so that the low-temperature non-ferrous metal finished product is output from the mold outlet (6) and the material to be formed is retained in at least one pre-heated unit along the direction from the installation end (104) to the fixed end (103).

16. A production line, comprising a low-temperature non-ferrous metal extrusion direct forming machine as described in any one of claims 1-13, characterized in that: It also includes a first traction machine (15), a looper mechanism (16), a second traction machine (17), a cold rolling mill (18), an edge trimmer (19), a shearing machine (20), and a coiler (21). The low-temperature non-ferrous metal extrusion direct forming machine (14), the first traction machine (15), the looper mechanism (16), the second traction machine (17), the cold rolling mill (18), the edge trimmer (19), the shearing machine (20), and the coiler (21) are arranged sequentially along the strip output direction L3.

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