Raw material hot extrusion device for aluminum material processing based on intelligent control
By designing intelligently controlled diversion die and drainage channels in the aluminum hot extrusion device, the problem of dead zone in the internal mold is solved, and the extrusion quality and flow uniformity of aluminum are improved.
Patent Information
- Application Number
- CN202411861852.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-04-15
AI Technical Summary
In the existing aluminum hot extrusion process, flow dead zones are prone to occur inside the mold, resulting in a decrease in the extrusion quality of the aluminum.
A thermal extrusion device for raw materials for aluminum processing based on intelligent control is designed, using a split die and drainage channel to guide the metal at the edge of the welding chamber to the molding channel through the drainage channel to improve the flowability of the flow dead zone.
It effectively improves the flowability of the flow dead zone, improves the hot extrusion quality and the uniformity of metal flow, and reduces the occurrence of the flow dead zone.
Smart Images
Figure CN119819745A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of aluminum material processing and forming, and in particular to a raw material hot extrusion device for aluminum material processing based on intelligent control. Background Art
[0002] Aluminum hot extrusion is a process of extruding heated aluminum alloy materials through a die of a specific shape. This process can produce aluminum profiles of various complex shapes and is widely used in many fields such as construction, transportation, and electronics. The specific steps are generally: heating of aluminum billets, die assembly, hot extrusion, quenching and stretching, shearing and cooling, post-processing and final inspection.
[0003] However, in the prior art, a dead zone, that is, an area with insufficient flow, may appear inside the mold due to factors such as temperature, metal shaping and flow cavity. The dead zone will reduce the extrusion quality of aluminum. Summary of the invention
[0004] The present invention provides a raw material hot extrusion device for aluminum material processing based on intelligent control, which can guide the metal in the flow dead zone in the welding cavity to the forming channel, improve the flow in the flow dead zone, and can also make the metal near the flow dead zone flow centripetally toward the opening and mix, thereby improving the hot extrusion quality and metal flow uniformity.
[0005] In order to achieve the above object, the present invention provides the following technical solutions:
[0006] A raw material hot extrusion device for aluminum material processing based on intelligent control, comprising:
[0007] A diverter die can be assembled on a die base of an aluminum extruder; the diverter die comprises an A die and a B die which can be assembled in combination, the B die is provided with a welding cavity, a die hole is provided inside the welding cavity, and the A die is designed with a diverter portion and a die core; after the A die and the B die are combined, the diverter portion is communicated with the welding cavity, the die core cooperates with the die hole and forms a molding channel; a drainage channel is provided inside the B die, the two ends of the drainage channel are respectively connected to the molding channel and the welding cavity, and one end of the drainage channel is close to the edge of the welding cavity; a lock core portion for controlling the opening and closing of the two ends of the drainage channel is designed inside the B die.
[0008] Optionally, one end of the drainage channel located in the welding cavity is a collecting end, and one end of the drainage channel located in the molding channel includes a plurality of dispersing ends.
[0009] Optionally, the lock core portion includes a travel groove opened inside the B mold and connected to the drainage channel, the travel groove is colinear with the radial line of the B mold, a core block is slidably installed in the travel groove, the core block closes both ends of the drainage channel when it is in a preset locking position, the core block can slide outward to release the closure of the drainage channel, and the flow rate of the drainage channel is regulated by the sliding distance of the core block, and the lock core portion also includes a traction member installed on the aluminum extruder, and the traction member can control the displacement of the core block in the travel groove.
[0010] Optionally, an auxiliary rod is rotatably installed in the welding cavity, one end of the auxiliary rod is rotated to pass through the outer wall of the B mold, a driver for controlling the rotation of the auxiliary rod is installed on the aluminum extruder, and a diverter blade is spirally installed on the outer wall of the auxiliary rod, the diverter blade and the auxiliary rod are integrally formed, and the auxiliary rod is colinear with the radial line of the B mold.
[0011] Optionally, a pressure-bearing parting piece is fixedly installed inside the welding cavity, and the pressure-bearing parting piece has a parting angle, the parting angle faces the diversion part, the pressure-bearing parting piece semi-surrounds the outside of the diversion blade, and there is a gap between the pressure-bearing parting piece and the edge of the diversion blade.
[0012] Optionally, the diverter portion is connected to the interior of the welding cavity, and the opening of the welding cavity is larger than the access end of the diverter portion.
[0013] Optionally, the end of the A mold is a convex part, and the end of the B mold is a concave part, the convex part and the concave part are interference fitted, and there is an assembly gap between the A mold and the B mold, and the assembly gap is filled with a rubber pad.
[0014] Optionally, a group of positioning pins are provided on the outer walls of the A mold and the B mold.
[0015] Optionally, the diversion part includes a pressure-bearing column integrally formed with the A mold, a plurality of diversion holes are opened through the A mold, the pressure-bearing column is located on the axis of the A mold, and the circumferential inner wall of the diversion hole is designed as an arc-shaped transition.
[0016] Optionally, a guide column is integrally formed at the end of the pressure-bearing column, the end of the guide column is fixedly connected to the mold core, and the connection between the guide column and the mold core is a smooth transition zone.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. The edge of the welding cavity is most likely to produce a dead zone or poor flow. By setting a drainage channel, the drainage channel can guide the metal near the dead zone to the forming channel, so that the metal near the dead zone can be lost and replenished reciprocally, thereby increasing the flow frequency of the metal.
[0019] Second, by designing drainage channels, when metal flows from the gathering end to the dispersion end, the openings formed by multiple dispersion ends will change the metal flow, thereby providing more directions for the metal flow, changing the flow path of the metal, avoiding poor flow, and improving the filling effect.
[0020] 3. Since the stroke groove is in line with the radial line of the B mold, the core block will move centrifugally under the drive of the traction member, so that the opening and closing of the drainage channel of the core block can be controlled, so that the metal in the dead zone of the welding cavity edge can be lost and replenished, thereby improving the fluidity of the metal at the edge of the welding cavity.
[0021] 4. When the auxiliary rod drives the diverter blade to work, it can distribute the metal flow inside the welding cavity. At this time, a specific flow pattern will be formed, and the metal flow near the edge of the welding cavity will be guided centripetally toward the opening. Not only that, the rotation of the diverter blade also has a mixing effect, which can realize the redistribution of metal flow, so that the metal in the flow dead zone can move and reduce the flow dead zone.
[0022] 5. By designing pressure-bearing parting parts, the auxiliary rods and diverter blades can be protected, and the parting angle can change the metal flow, which is used to guide the metal flow direction and distribution and reduce eddy currents and dead zones during the metal flow process. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the combination of the A mold and the B mold of the present invention;
[0024] Figure 2 For the present invention Figure 1 A right view structural diagram of ;
[0025] Figure 3 For the present invention Figure 2 A schematic diagram of the structure cut away at CC in the middle;
[0026] Figure 4 It is a schematic diagram of the state of the drainage channel after the lock core part of the present invention works;
[0027] Figure 5 For the present invention Figure 1 Schematic diagram of the internal three-dimensional structure;
[0028] Figure 6 Schematic diagram of the three-dimensional structure of the A mold in the present invention;
[0029] Figure 7 Schematic diagram of the three-dimensional structure of the B mold in the present invention;
[0030] Figure 8 It is a structural schematic diagram of another viewing angle when the A mold and the B mold are combined in the present invention.
[0031] In the figure: 1. A mold; 2. B mold; 3. diversion hole; 4. mold hole; 5. mold core; 6. welding cavity; 7. pressure-bearing parting piece; 8. auxiliary rod; 9. core block; 11. drainage channel; 12. guide column; 13. pressure-bearing column; 15. positioning pin. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0033] See also Figures 1 to 8 The present invention provides a technical solution: a raw material hot extrusion device for aluminum material processing based on intelligent control, comprising:
[0034] A diverter die can be assembled on a die base of an aluminum extruder; the diverter die comprises an A die 1 and a B die 2 which are assembled in combination; the B die 2 is provided with a welding cavity 6, a die hole 4 is provided inside the welding cavity 6, and the A die 1 is provided with a diverter portion and a die core 5; after the A die 1 and the B die 2 are combined, the diverter portion is communicated with the welding cavity 6, the die core 5 cooperates with the die hole 4 and forms a molding channel; a drainage channel 11 is provided inside the B die 2, the two ends of the drainage channel 11 are respectively connected to the molding channel and the welding cavity 6, and one end of the drainage channel 11 is close to the edge of the welding cavity 6; a lock core portion for controlling the opening and closing of the two ends of the drainage channel 11 is provided inside the B die 2.
[0035] In the prior art, the function of the welding chamber 6 is to collect the aluminum materials after diversion, and then guide the aluminum materials to the working belt and the forming slit or the forming channel, and use uniform and continuous extrusion to enable the aluminum materials to be stably output and shaped. However, in order to meet the depth and volume of the internal space of the welding chamber 6, the welding chamber is prone to flow dead zones. Among them, the volume of the welding chamber 6 affects the hydrostatic pressure of the metal, and the height and depth of the welding chamber 6 affect the stress distribution or flow uniformity, resulting in the welding chamber 6 inevitably generating flow dead zones due to size limitations, and temperature and material factors will also lead to the generation of flow dead zones. In this case, by designing the drainage channel 11, the two ends of the drainage channel 11 can be connected to the edge positions of the forming channel and the welding chamber 6, so that the metal at the edge position of the welding chamber 6 can be directly discharged through the drainage channel 11. It is directly introduced into the forming channel. In the welding cavity 6, in order to make the forming channel receive the metal more evenly, the forming channel is generally centered or at the center of gravity, so that the pressure of the metal in the welding cavity 6 at any position entering the forming channel can be consistent. Generally, the flow dead zone is far away from the opening or the slit. The metal is subjected to a greater extrusion force at a position close to the mold outlet, which helps to promote the flow of the metal, and the friction force at the outlet is smaller than that at the inlet. Because the surface area of the metal in contact with the mold is reduced, the edge position of the welding cavity 6 is most likely to produce a flow dead zone or poor flow. By setting the drainage channel 11, the drainage channel 11 can guide the metal near the flow dead zone to the molding channel, so that the metal near the flow dead zone can be reciprocated and replenished, thereby increasing the flow frequency of the metal.
[0036] Secondly, by designing the lock core, the opening of both ends of the drainage channel 11 can be controlled.
[0037] Among them, in a more preferred embodiment, one end of the drainage channel 11 located in the welding cavity 6 is a collecting end, and the drainage channel 11 is located at one end of the forming channel and includes multiple dispersed ends. In this embodiment, when the metal flows from the collecting end to the dispersed end, it is equivalent to adding multiple openings. The multiple openings will change the metal flow, thereby providing more directions for the metal flow, changing the flow path of the metal, avoiding poor flow, and improving the filling effect.
[0038] In a more preferred embodiment, the lock core part includes a travel groove opened inside the B mold 2 and connected to the drainage channel 11. The travel groove is colinear with the diameter of the B mold 2. A core block 9 is slidably installed in the travel groove. When the core block 9 is located at a preset locking position, the two ends of the drainage channel 11 are closed. The core block 9 slides outward to release the closure of the drainage channel 11, and the flow rate of the drainage channel 11 is regulated by the sliding distance of the core block 9. The lock core part also includes a traction member installed on the aluminum extruder, which can control the displacement of the core block 9 in the travel groove. Please refer to Figures 3 to 7In this embodiment, since the stroke groove is in line with the radial line of the B mold 2, the core block 9 will move centrifugally under the drive of the traction member, so that the core block 9 can be controlled to open and close the drainage channel 11, wherein the drainage channel 11 can be Figure 4 As shown in the enlarged detail diagram, it has a stepped design. When the end of the core block 9 is located at the lowest and narrowest step, the core block 9 closes the drainage channel 11. Similarly, the other end of the core block 9 will also close the opening at the inner wall of the welding cavity 6, thereby completing the closure of the drainage channel 11 and preventing the metal inside the welding cavity 6 from flowing into the drainage channel 11. When the core block 9 performs centrifugal motion, the core block 9 steps into the second step. At this time, the lowest step is unlocked, and the drainage channel 11 also loses the right to close the other end of the drainage channel 11. The drainage channel 11 is unobstructed, and the metal near the edge of the welding cavity 6 can be transferred to the forming channel through the drainage channel 11 under pressure, so that the metal in the dead zone of the flow at the edge of the welding cavity 6 can be lost and replenished, thereby improving the fluidity of the metal at the edge of the welding cavity 6.
[0039] In a more preferred embodiment, an auxiliary rod 8 is rotatably installed in the welding chamber 6, one end of the auxiliary rod 8 rotates and penetrates the outer wall of the B mold 2, a driver for controlling the rotation of the auxiliary rod 8 is installed on the aluminum extruder, and a diverter blade is spirally installed on the outer wall of the auxiliary rod 8, the diverter blade and the auxiliary rod 8 are integrally formed, and the auxiliary rod 8 is colinear with the radial line of the B mold 2, please refer to Figures 3 to 5 In this embodiment, the driver is not shown. When the auxiliary rod 8 drives the diverter blade to work, the metal flow inside the welding chamber 6 can be distributed. At this time, a specific flow pattern will be formed, and the metal flow near the edge of the welding chamber 6 will be guided centripetally toward the opening. Not only that, the rotation of the diverter blade also has a mixing effect, which can realize the redistribution of metal flow, so that the metal in the flow dead zone can move and reduce the flow dead zone.
[0040] Furthermore, a pressure-bearing parting piece 7 is fixedly installed inside the welding cavity 6. The pressure-bearing parting piece 7 has a parting angle, which faces the diversion part. The pressure-bearing parting piece 7 half surrounds the outside of the diversion blade. There is a gap between the pressure-bearing parting piece 7 and the edge of the diversion blade. Please refer to Figure 3 and Figure 4 In this embodiment, the pressure-bearing parting piece 7 can be used to protect the auxiliary rod 8 and the diverter blades, and the parting angle can change the metal flow to guide the metal flow direction and distribution and reduce eddy currents and dead zones during the metal flow process.
[0041] Furthermore, the shunt portion is connected to the inside of the welding cavity 6, and the opening of the welding cavity 6 is larger than the access end of the shunt portion.
[0042] Furthermore, in order to better assemble and ensure the assembly sealing performance between mold A 1 and mold B 2, the end of mold A 1 is a convex part, and the end of mold B 2 is a concave part, and the convex part and the concave part are interference fitted, and there is an assembly gap between mold A 1 and mold B 2, and the assembly gap is filled with a rubber pad.
[0043] Furthermore, in order to position and lock the diverter mold, a group of positioning pins 15 are provided on the outer walls of the A mold 1 and the B mold 2 .
[0044] Among them, a more preferred embodiment is that the diversion part includes a pressure-bearing column 13 integrally formed with the A-mold 1, and a plurality of diversion holes 3 are opened through the A-mold 1. The pressure-bearing column 13 is located on the axis of the A-mold 1, and the circumferential inner wall of the diversion hole 3 is an arc-shaped transition design. In this embodiment, the pressure-bearing column 13 is a component of the diversion mold. When the metal passes through the pressure-bearing column 13, the flow direction changes, which helps to ensure the uniformity of the metal flow. The arc-shaped transition design can improve the continuity and uniformity of the metal entering the welding cavity 6.
[0045] Furthermore, a guide column 12 is integrally formed at the end of the pressure-bearing column 13, and the end of the guide column 12 is fixedly connected to the mold core 5. The connection between the guide column 12 and the mold core 5 is a smooth transition zone, which can reduce the flow resistance of the metal in the final stage and make the metal flow more uniform.
[0046] In summary, by utilizing the above-mentioned structures, the metal in the dead zone of the flow in the welding cavity 6 can be guided to the forming channel to improve the flow in the dead zone of the flow. The metal near the dead zone of the flow can also flow centripetally toward the opening and mix, thereby improving the hot extrusion quality and metal flow uniformity.
[0047] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.
Claims
1. A raw material hot extrusion device for aluminum processing based on intelligent control, characterized in that: include: A splitter die that can be assembled on the die base of an aluminum extrusion machine; The flow splitter mold comprises an A mold (1) and a B mold (2) which are assembled in combination, the B mold (2) is provided with a welding cavity (6), a mold hole (4) is provided inside the welding cavity (6), and the A mold (1) is provided with a flow splitter and a mold core (5); After the A mold (1) and the B mold (2) are combined, the diversion portion is connected to the welding cavity (6), and the mold core (5) and the mold hole (4) cooperate to form a molding channel; A drainage channel (11) is provided inside the B mold (2), and two ends of the drainage channel (11) are respectively connected to the molding channel and the welding cavity (6), and one end of the drainage channel (11) is close to the edge of the welding cavity (6); The B mold (2) is internally provided with a lock core portion for controlling the opening and closing of both ends of the drainage channel (11).
2. The raw material hot extrusion device for aluminum material processing based on intelligent control according to claim 1 is characterized in that: One end of the drainage channel (11) located in the welding cavity (6) is a collecting end, and one end of the drainage channel (11) located in the molding channel includes a plurality of dispersing ends.
3. The raw material hot extrusion device for aluminum material processing based on intelligent control according to claim 2 is characterized in that: The lock core part comprises a travel groove which is opened inside the B mold (2) and communicates with the drainage channel (11); the travel groove is colinear with the radial line of the B mold (2); a core block (9) is slidably mounted in the travel groove; the core block (9) closes both ends of the drainage channel (11) when located at a preset locking position; the core block (9) can release the closure of the drainage channel (11) by sliding outward, and the flow rate of the drainage channel (11) is regulated by the sliding distance of the core block (9); the lock core part also comprises a traction member mounted on the aluminum extruder; the traction member can control the displacement of the core block (9) in the travel groove.
4. The raw material hot extrusion device for aluminum material processing based on intelligent control according to claim 2 is characterized in that: An auxiliary rod (8) is rotatably mounted in the welding cavity (6), one end of the auxiliary rod (8) is rotatably mounted to penetrate the outer wall of the B mold (2), a driver for controlling the rotation of the auxiliary rod (8) is mounted on the aluminum extruder, a flow dividing blade is spirally mounted on the outer wall of the auxiliary rod (8), the flow dividing blade and the auxiliary rod (8) are integrally formed, and the auxiliary rod (8) and the radial line of the B mold (2) are colinear.
5. The raw material hot extrusion device for aluminum material processing based on intelligent control according to claim 4 is characterized in that: A pressure-bearing parting piece (7) is fixedly installed inside the welding cavity (6), and the pressure-bearing parting piece (7) has a parting angle, and the parting angle faces the diversion part. The pressure-bearing parting piece (7) semi-encloses the outside of the diversion blade, and there is a gap between the pressure-bearing parting piece (7) and the edge of the diversion blade.
6. The raw material hot extrusion device for aluminum material processing based on intelligent control according to claim 5 is characterized in that: The diverter portion is connected to the interior of the welding cavity (6), and the opening of the welding cavity (6) is larger than the access end of the diverter portion.
7. The raw material hot extrusion device for aluminum material processing based on intelligent control according to claim 1 is characterized in that: The end of the A mold (1) is a convex part, and the end of the B mold (2) is a concave part. The convex part and the concave part are fitted with each other in an interference fit. There is an assembly gap between the A mold (1) and the B mold (2), and the assembly gap is filled with a rubber pad.
8. The raw material hot extrusion device for aluminum material processing based on intelligent control according to claim 7 is characterized in that: The outer walls of the A mold (1) and the B mold (2) are each provided with a group of positioning pins (15).
9. The raw material hot extrusion device for aluminum material processing based on intelligent control according to any one of claims 1 to 8, characterized in that: The flow dividing portion comprises a pressure-bearing column (13) integrally formed with the A-mold (1); a plurality of flow dividing holes (3) are formed through the A-mold (1); the pressure-bearing column (13) is located on the axis of the A-mold (1); and the circumferential inner wall of the flow dividing hole (3) is designed as an arc-shaped transition.
10. The raw material hot extrusion device for aluminum material processing based on intelligent control according to claim 9, characterized in that: A flow guide column (12) is integrally formed at the end of the pressure bearing column (13), the end of the flow guide column (12) is fixedly connected to the mold core (5), and the connection between the flow guide column (12) and the mold core (5) is a smooth transition zone.