Efficient aluminum profile extrusion forming machine and forming process thereof

Abstract

The invention belongs to the technical field of aluminum profile extrusion forming, and discloses an efficient aluminum profile extrusion forming machine and a forming process thereof.The efficient aluminum profile extrusion forming machine comprises a base, a supporting frame and a rotating assembly, the rotating assembly is movably connected to the interior of the supporting frame, and a first mold and a second mold are symmetrically clamped to the upper end and the lower end of an inner cavity of the rotating assembly; through cooperation of the supporting frame, the rotating disc, the mold frames and other structures, the effect of rapid mold replacement without shutdown is achieved, two different preheating molds are conveniently inserted into the rotating disc through the two mold frames, and through cooperation of the positioning blocks and the mold grooves, mold preliminary positioning can be rapidly completed, and insertion deviation is avoided; the rotating disc rotates by 180 or more under the action of external force, so that position exchange of a new mold and an old mold is achieved, and due to the fact that the diameters of the two molds are the same, the molds after mold exchange, the extrusion assembly and the extrusion cylinder are still located on the central axis, rapid mold exchange is achieved, and the continuous production efficiency of equipment is effectively improved.

Description

Technical Field

[0001] This invention belongs to the field of aluminum profile extrusion molding technology, specifically a high-efficiency aluminum profile extrusion molding machine and its molding process. Background Technology

[0002] An efficient aluminum profile extrusion molding machine is a specialized piece of equipment that applies high pressure to heated aluminum ingots, forcing them through a die cavity with a specific cross-section to obtain aluminum profiles of the desired shape and size. Extrusion machines are suitable for producing door frame borders, door sills, and decorative door profiles. Their core system includes an extrusion cylinder, small dies, and a traction mechanism, and they are widely used in the production of aluminum materials for home decoration doors and windows, and small commercial stores.

[0003] For example, the invention with publication number CN116641006A relates to the field of aluminum profile manufacturing, specifically an aluminum profile manufacturing system and process, including a cooling device for cooling the pressed aluminum profile. This cooling device includes a cooling box with a base plate connected to its lower end, and two through-plates coaxially mounted on the front and rear sides of the cooling box. Coolant enters from the lower end of the cooling box and exits from the upper end. The process includes the following steps: S1, mixing aluminum alloy raw materials evenly and heating them to a molten state, then casting the molten aluminum alloy into a billet of the desired cross-sectional shape; S2, heating the billet after cutting and grinding; S3, extruding the heated billet using an extruder to obtain an aluminum profile; S4, inserting the extruded aluminum profile through the through-plates into the cooling box for rapid, efficient, and continuous immersion cooling; S5, performing surface treatment on the cooled aluminum profile. This invention enables continuous immersion cooling of extruded aluminum profiles. While the aforementioned device can perform immersion cooling on the extruded aluminum profiles, it also has significant drawbacks. For example, when changing molds, operators need to manually remove the clamping bolts of the old mold, position and install the new mold. The entire process is cumbersome and requires high operator skills. Furthermore, the equipment needs to be stopped and waited during the mold change process, resulting in a single mold change time typically lasting 10 to 30 minutes. This severely impacts the continuous operating efficiency of the production line and makes it difficult to adapt to the production rhythm of multiple styles and short batches of small door aluminum profiles. Therefore, a high-efficiency aluminum profile extrusion molding machine and its molding process are proposed. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides an efficient aluminum profile extrusion molding machine and its molding process.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency aluminum profile extrusion molding machine, comprising a base and a support frame; A rotating assembly is movably connected inside the support frame, and the upper and lower ends of the inner cavity of the rotating assembly are symmetrically engaged with the first mold and the second mold. A limiting component, which is movably connected inside the rotating component; A compression assembly is mounted on one side of a base, and a traction assembly is mounted on the other side of the base; An extrusion cylinder is installed between the rotating assembly and the extrusion assembly, and the extrusion cylinder, the extrusion assembly, and the second mold are located on the same central axis. One side of the extrusion cylinder is in close contact with the second mold. The rotating assembly includes a turntable, a first gear is fixedly connected to the outer wall of the turntable, a motor is fixedly connected to the top of the base, a second gear is fixedly connected to the output shaft end of the motor, and two mold frames are opened in the inner cavity of the turntable. The limiting component includes a first disk and a second disk.

[0006] Preferably, the surface of the first disk is provided with four first arc grooves in a ring, and the surface of the second disk is provided with four second arc grooves in a ring. The first disk and the second disk are each provided with toothed blocks on opposite sides, and the first disk and the second disk are meshed together.

[0007] Preferably, the first and second arc grooves have the same arc value, the middle part of the first and second disks are both hollowed-out circular shapes, and the first and second disks rotate with the axis of the two mold frames as the center.

[0008] Preferably, square blocks are movably connected inside both the first and second arc grooves, and four square blocks arranged in a ring form a group, with connecting posts provided on both sides of each square block.

[0009] Preferably, an electric telescopic rod is fixedly connected inside the rotating assembly, the output shaft end of the electric telescopic rod is fixedly connected to one of the square blocks, and the inner wall of the support frame is provided with a sliding groove for circumferentially limiting the square block.

[0010] Preferably, the diameter of the mold frame is the same as the diameter of the first mold and the second mold, and four positioning blocks are arranged in a ring on the inner wall of the mold frame. The outer walls of the first mold and the second mold are provided with grooves that are adapted to the positioning blocks.

[0011] Preferably, the interior of both the first mold and the second mold groove is provided with a square groove that matches the square block. One end of the mold frame penetrates the outer wall of the positioning block and extends to the outside of the positioning block. In the initial state, a set of the mold frames is movably engaged inside the square groove of the first mold.

[0012] Preferably, the second gear and the first gear are meshed together, and a baffle is provided on the top of the support frame near the extrusion cylinder, with one side of the first mold abutting against the baffle.

[0013] Preferably, one side of the extrusion cylinder is in close contact with the outer wall of the turntable, and the extrusion cylinder is used to carry the heated aluminum material and maintain the forming temperature.

[0014] This application also proposes a high-efficiency extrusion forming process for aluminum profiles, the steps of which are as follows: S1. The aluminum rods suitable for small aluminum materials are put into the heating furnace and heated to a plastic temperature of 450 to 500 degrees. Then, the servo rod feeding mechanism pushes them into the inside of the extrusion cylinder in a rhythmic manner, ensuring that the aluminum rod temperature is uniform and matches the preheating temperature of the extrusion cylinder. S2. The main hydraulic cylinder drives the extrusion assembly to advance at a predetermined speed. After the aluminum rod is subjected to high pressure in the extrusion cylinder, it is smoothly extruded into the mold cavity preheated to 250 to 300 degrees Celsius, and is continuously extruded after being shaped according to the cross section of the aluminum mold. S3. The traction component pulls out the profile at a synchronous speed. The straightness is corrected by the roller straightener. After being cut to length, it enters the next process. At the same time, the turntable rotates to replace the new mold, realizing rapid mold change and continuous production.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention achieves rapid mold changing without stopping the machine by coordinating the support frame, turntable, and mold frame. Two mold frames facilitate the insertion of two different preheating molds into the turntable. The positioning block engages with the mold groove, quickly completing the initial mold positioning and preventing insertion misalignment. The turntable rotates over 180 degrees under external force, allowing the old and new molds to be swapped. Since the two molds have the same diameter, the mold after film replacement remains aligned with the extrusion assembly and extrusion cylinder on the central axis. This eliminates the need for prolonged downtime, enabling rapid film changing and effectively improving the continuous production efficiency of the equipment.

[0016] This invention facilitates rapid mold fixing through the cooperation of structures such as the first arc groove, the second arc groove, and the square blocks. An electric telescopic rod moves one of the square blocks, which, in turn, drives the first disc to rotate, simultaneously engaging the other three square blocks into the square grooves of the new mold, thus quickly fixing the mold. Simultaneously, during fixing, the first disc drives the second disc to rotate in the opposite direction, which, through the cooperation of the second arc groove and another set of square blocks, causes the other set of square blocks to move in the opposite direction, releasing the old mold from its fixation and facilitating subsequent removal. This achieves rapid fixing of the new mold and release of the old mold from its limiting position, ensuring the accuracy and normal operation of subsequent extrusion processes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the positional relationship between the support frame and the rotating component of the present invention; Figure 3 This is a schematic diagram of the front section structure of the rotating component of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a side sectional view of the support frame of the present invention; Figure 6 for Figure 5 Enlarged view of point B in the middle; Figure 7 This is an enlarged view of the structure of the rotating component of the present invention; Figure 8 This is an enlarged view of the structure of the limiting component of the present invention.

[0018] In the diagram: 1. Base; 2. Support frame; 3. Rotating assembly; 31. Turntable; 32. First gear; 33. Second gear; 34. Motor; 35. Mold frame; 36. Positioning block; 4. Limiting assembly; 41. First disc; 42. Second disc; 43. First arc groove; 44. Second arc groove; 45. Square block; 46. Electric telescopic rod; 5. First mold; 6. Second mold; 7. Extrusion assembly; 8. Extrusion cylinder; 9. Traction assembly. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1 to 8 As shown, the present invention provides a high-efficiency aluminum profile extrusion molding machine, including a base 1 and a support frame 2. Rotating component 3 is movably connected inside the support frame 2, and the upper and lower ends of the inner cavity of rotating component 3 are symmetrically engaged with the first mold 5 and the second mold 6. Limiting component 4 is movably connected inside the rotating component 3; The extrusion assembly 7 is installed on one side of the base 1, and the traction assembly 9 is installed on the other side of the base 1. The extrusion cylinder 8 is installed between the rotating assembly 3 and the extrusion assembly 7, and the extrusion cylinder 8, the extrusion assembly 7 and the second mold 6 are on the same central axis. One side of the extrusion cylinder 8 is in close contact with the second mold 6. The rotating assembly 3 includes a turntable 31, a first gear 32 is fixedly connected to the outer wall of the turntable 31, a motor 34 is fixedly connected to the top of the base 1, a second gear 33 is fixedly connected to the output shaft end of the motor 34, and two mold frames 35 are opened in the inner cavity of the turntable 31. The limiting component 4 includes a first disk 41 and a second disk 42.

[0021] The above solution allows for the convenient insertion of two different preheating molds into the turntable 31 by providing two mold frames 35. The positioning block 36 engages with the mold groove to quickly complete the initial positioning of the mold and avoid insertion misalignment. The turntable 31 rotates more than 180 times under external force to swap the positions of the old and new molds. Since the two molds have the same diameter, the mold after film replacement remains on the central axis of the extrusion assembly 7 and the extrusion cylinder 8. This eliminates the need for long downtime and enables rapid film replacement, effectively improving the continuous production efficiency of the equipment.

[0022] like Figure 3 , Figure 4 and Figure 8 As shown, the surface of the first disk 41 is provided with four first arc grooves 43 in a ring, and the surface of the second disk 42 is provided with four second arc grooves 44 in a ring. Toothed blocks are provided on the opposite side of the first disk 41 and the second disk 42. The first disk 41 and the second disk 42 are meshed and connected. The arc values ​​of the first arc grooves 43 and the second arc grooves 44 are the same. The middle part of the first disk 41 and the second disk 42 is a hollow circle shape. The first disk 41 and the second disk 42 rotate about the axis of the two mold frames 35 respectively. Square blocks 45 are movably connected inside the first arc grooves 43 and the second arc grooves 44. Four square blocks 45 distributed in a ring form a group. Connecting posts are provided on both sides of the square blocks 45.

[0023] The above solution involves using an electric telescopic rod 46 to move one of the square blocks 45. This, in turn, with the cooperation of the first arc groove 43 and the square block 45, drives the first disc 41 to rotate, simultaneously engaging the remaining three square blocks 45 into the square groove of the new mold, thus quickly fixing the mold. Simultaneously, during the fixing process, the first disc 41 drives the second disc 42 to rotate in the opposite direction. This, through the cooperation of the second arc groove 44 and another set of square blocks 45, causes the other set of square blocks 45 to move in the opposite direction, releasing the old mold from its fixation and facilitating subsequent removal. This achieves the effect of quickly fixing the new mold and releasing the old mold from its limiting position, ensuring the accuracy and normal operation of subsequent extrusion work.

[0024] like Figures 2 to 8 As shown, an electric telescopic rod 46 is fixedly connected inside the rotating assembly 3. The output shaft end of the electric telescopic rod 46 is fixedly connected to one of the square blocks 45. The inner wall of the support frame 2 is provided with a sliding groove for circumferentially limiting the square block 45. The diameter of the mold frame 35 is the same as the diameter of the first mold 5 and the second mold 6. Four positioning blocks 36 are arranged in a ring on the inner wall of the mold frame 35. The outer walls of the first mold 5 and the second mold 6 are provided with grooves that fit the positioning blocks 36. The interior of the grooves of the first mold 5 and the second mold 6... Each mold frame 35 has a square slot that matches the square block 45. One end of the mold frame 35 passes through the outer wall of the positioning block 36 and extends to the outside of the positioning block 36. In the initial state, a set of mold frames 35 is movably locked inside the square slot of the first mold 5. The second gear 33 and the first gear 32 are meshed and connected. A baffle is provided on the top of the support frame 2 near the extrusion cylinder 8. One side of the first mold 5 abuts against the baffle. One side of the extrusion cylinder 8 is tightly fitted to the outer wall of the turntable 31. The extrusion cylinder 8 is used to carry the heated aluminum material and maintain the molding temperature.

[0025] The above solution is adopted: a baffle is provided on one side of the support frame 2. The baffle is made of a high temperature resistant, deformation resistant and low wear material, generally H13 hot work die steel. By setting the baffle, the depth of the new die inserted into the die frame 35 can be precisely limited, thereby avoiding the coaxiality deviation between the die and the extrusion cylinder 8 and the extrusion assembly 7 due to excessive or shallow insertion, thus ensuring that the aluminum material can flow stably into the die cavity during subsequent extrusion.

[0026] The working principle and usage process of this invention: When the aluminum material extrusion is completed and the film needs to be changed, the operator inserts the preheated first mold 5 into the interior of one of the mold frames 35 through the hoisting assembly. At the same time as the first mold 5 is inserted, the positioning block 36 and the groove of the first mold 5 are engaged to position the first mold 5 during the insertion process, thereby preventing the first mold 5 from shifting. Subsequently, one side of the first mold 5 abuts against the baffle at the top of the support frame 2, thereby limiting the first mold 5. After the first mold 5 is inserted, the operator starts the electric telescopic rod 46 through the remote control terminal, so that the electric telescopic rod 46 drives one of the square blocks 45 to move in a straight line towards the first mold 5. While the first mold 5 moves, the connecting posts on both sides slide along the trajectory of the first arc groove 43, thereby driving the first disc 41 to rotate counterclockwise through the first arc groove 43. After the first disc 41 rotates, the connecting posts of the remaining three square blocks 45 all move in a straight line towards the first mold 5 along the trajectory of the first arc groove 43, so that after a set of square blocks 45 move, they are all stuck into the square groove of the first mold 5, thereby positioning the first mold 5 inserted into the mold frame 35, thus ensuring the stability and normal operation of subsequent extrusion. While the first disc 41 rotates counterclockwise, it will also drive the second disc 42 to rotate clockwise, so that the other set of square blocks 45, under the circumferential limiting action of the slide groove of the support frame 2, will move in a straight line along the trajectory of the second arc groove 44 away from the second mold 6, thereby detaching from the interior of the square groove of the second mold 6, thus releasing the fixation of the second mold 6 inside the mold frame 35. Subsequently, the operator issues a start command to the motor 34 through the remote control terminal, which in turn causes the motor 34 to drive the second gear 33 to rotate. At the same time, the second gear 33 rotates, which in turn drives the turntable 31 to rotate 180 degrees through the first gear 32. During the rotation of the turntable 31, it will drive the limiting component 4, the first mold 5 and the second mold 6 inside to rotate together, thereby causing the positions of the first mold 5 and the second mold 6 to be swapped. After the rotation, the first mold 5 will be on the same central axis as the extrusion cylinder 8 and the extrusion component 7. After the second mold 6 rotates, the operator will use the hoisting component to remove the second mold 6 after it is released from the jamming, so as to carry out the next film replacement operation. Finally, the servo feeding mechanism pushes the aluminum rod into the interior of the extrusion cylinder 8. After being subjected to high pressure inside the extrusion cylinder 8, the aluminum rod is smoothly extruded into the first mold 5, which is preheated to 250 to 300 degrees Celsius. After being shaped according to the cross section, it is continuously extruded. The traction component 9 pulls out the profile at a synchronous speed, thereby achieving rapid film change and improving production efficiency.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aluminum profile high-efficiency extrusion forming machine, comprising a base (1) and a support frame (2), characterized in that: a rotating assembly (3) is movably connected inside the support frame (2), and the upper and lower ends of the inner cavity of the rotating assembly (3) are symmetrically clamped with a first die (5) and a second die (6); a limiting assembly (4) is movably connected inside the rotating assembly (3); an extrusion assembly (7) is installed on one side of the base (1), and a traction assembly (9) is installed on the other side of the base (1); an extrusion cylinder (8) is installed between the rotating assembly (3) and the extrusion assembly (7), and the extrusion cylinder (8), the extrusion assembly (7) and the second die (6) are on the same central axis, and one side of the extrusion cylinder (8) is in close contact with the second die (6); wherein the rotating assembly (3) comprises a turntable (31), the outer wall of the turntable (31) is fixedly connected with a first gear (32), the top of the base (1) is fixedly connected with a motor (34), the output shaft end of the motor (34) is fixedly connected with a second gear (33), and the inner cavity of the turntable (31) is provided with two die holders (35); the limiting assembly (4) comprises a first disc (41) and a second disc (42). The surface of the first disc (41) is annularly provided with four first arc grooves (43), and the surface of the second disc (42) is annularly provided with four second arc grooves (44); the side opposite to the first disc (41) and the second disc (42) is provided with a tooth block, and the first disc (41) and the second disc (42) are engagedly connected. The first arc grooves (43) and the second arc grooves (44) have the same radian value, the middle parts of the first disc (41) and the second disc (42) are in the shape of a hollow circle, and the first disc (41) and the second disc (42) rotate around the central axes of the two die holders (35) respectively. The inner parts of the first arc grooves (43) and the second arc grooves (44) are movably connected with square blocks (45), four annularly distributed square blocks (45) form a group, and the two sides of each square block (45) are provided with a connecting column. An electric telescopic rod (46) is fixedly connected inside the rotating assembly (3), the output shaft end of the electric telescopic rod (46) is fixedly connected with one of the square blocks (45), and the inner wall of the support frame (2) is provided with a sliding groove for circumferentially limiting the square blocks (45). The diameter value of the die holder (35) is the same as that of the first die (5) and the second die (6), the inner wall of the die holder (35) is annularly provided with four positioning blocks (36), and the outer wall of the first die (5) and the second die (6) is provided with grooves matched with the positioning blocks (36). ​ 2. The high efficiency extrusion press for aluminum profiles as claimed in claim 1, characterized in that: ​ ​ 3. The high efficiency extrusion press for aluminum profiles as claimed in claim 2, characterized in that: ​ 4. The high efficiency extrusion press for aluminum profiles as claimed in claim 2, characterized in that: ​ 5. The high efficiency extrusion press for aluminum profiles as claimed in claim 1 characterized in that: ​ 6. The high efficiency extrusion press for aluminum sections as claimed in claim 1, characterized in that: ​ 7. The high efficiency extrusion press for aluminum sections as claimed in claim 1, characterized in that: The first mold (5) and the second mold (6) are provided with square grooves in the interiors of the recesses, the square grooves are adapted to the square blocks (45), one end of the mold frame (35) penetrates through the outer wall of the positioning block (36) and extends to the outside of the positioning block (36), and a group of the mold frames (35) are movably clamped in the interiors of the square grooves of the first mold (5) in the initial state.

8. The high efficiency extrusion press for aluminum profiles as claimed in claim 1 characterized in that: The second gear (33) and the first gear (32) are meshedly connected, the support frame (2) is provided with a baffle on the top of the side close to the extrusion cylinder (8), and the first mold (5) is abutted with the baffle on one side.

9. The high efficiency extrusion press for aluminum sections as claimed in claim 1, characterized in that: The extrusion cylinder (8) is tightly combined with the outer wall of the rotating disc (31) on one side, and the extrusion cylinder (8) is used for bearing the heated aluminum material and maintaining the plasticizing temperature.

10. The high-efficiency extrusion forming process of aluminum profile is applied to the high-efficiency extrusion forming machine of aluminum profile in claims 1-9, characterized in that: The steps are as follows: S1, the aluminum bar suitable for small aluminum material is put into the heating furnace, heated to the plasticizing temperature of 450 to 500 degrees, then pushed into the interior of the extrusion cylinder (8) by the servo rod feeding mechanism according to the rhythm, and the temperature of the aluminum bar is uniform and matched with the preheating temperature of the extrusion cylinder (8); S2, the extrusion assembly (7) is driven by the main hydraulic cylinder to advance at a predetermined speed, the aluminum bar is smoothly extruded into the mold cavity preheated to 250 to 300 degrees after being subjected to high pressure in the extrusion cylinder (8), and then continuously extruded after being formed according to the cross section of the aluminum material mold; S3, the profile is drawn out at a synchronous speed by the traction assembly (9), the straightness is corrected by the roller straightening machine, and then enters the next process after being cut to a fixed size, and the rotating disc (31) rotates to change the new mold, so that the rapid mold changing and continuous production are realized.

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