Aluminum bar thermoplastic forming device

Abstract

The invention discloses an aluminum bar thermoplastic forming device, and relates to the technical field of aluminum product production. A plurality of movable supports are mounted on the bottom surface of the main frame, a vibration motor is mounted on the main frame, a lifting table is mounted on one side in the main frame, a guide rod group is mounted on the other side in the main frame, a top plate is mounted between the lifting table and the guide rod group, a plurality of upper dies are uniformly mounted on the bottom surface of the top plate, and the distance between the top plate and the upper dies is adjustable; a plurality of guide rails are installed at the bottom of the main frame, a bottom plate is fixedly connected between the top ends of the guide rails, a lower die matched with the upper die is installed at the top end of the bottom plate, the moving direction of the upper die is perpendicular to that of the lower die, and a detachable flow dividing pipe is installed between the upper die and the lower die. According to the invention, the upper and lower dies of the plurality of dies are divided into structures which are vertically butted with each other, and the lower die is provided with a plurality of injection ports which are attached to the inner bottom surface of the lower die, so that the device can be demoulded conveniently and efficiently when in use, and the surface smoothness of the produced aluminum bar is improved.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum product production, and in particular to an aluminum rod thermoplastic forming device. Background Art

[0002] Aluminum rods are widely used in various industries due to their light weight, high corrosion resistance and easy processing. When producing aluminum rods, the molten aluminum needs to go through processes such as smelting, casting and cooling. During casting, the filtrate needs to be assisted in forming with the help of a mold to finally complete the manufacture of the aluminum rod.

[0003] The patent specification with publication number CN113385641A discloses a forming device for an aluminum rod, comprising a bottom plate, a mounting frame is fixed on the upper end of the bottom plate, an upper template is fixed on the upper end of the mounting frame, a lower template slidably connected to the mounting frame is installed below the upper template, and the sliding direction is vertical, and a first arc groove and a second arc groove are respectively provided on the upper template and the lower template; a through groove is provided on the upper template, a push rod matched with the through groove is installed in the through groove, and the push rod moves synchronously with the lower template; a step hole is provided on the lower template, and a step pin matched with the step hole is installed in the step hole; a lifting mechanism is fixed on the upper end of the bottom plate, and the lifting mechanism is used to drive the step pin to lift;

[0004] The forming device realizes the opening and closing of the upper and lower molds by installing a screw rod and an adjusting rod between the upper and lower molds, and uses a step pin to position the mold closing process during the docking process, so as to reduce the generation of pores in the aluminum rod; the disadvantage of this technical solution is that the step pin serves to connect and position, and when used, it only makes the upper and lower molds accurately docked, and its effect on reducing pores in the aluminum rod is only to prevent the aluminum liquid from contacting with the air when cooling, but the upper and lower molds are in a sealed state after the mold is closed, and no air will be introduced, so the effect is limited, and the cause of bubbles in the finished aluminum rod is that the aluminum ingot reacts with water in the air to generate hydrogen before entering the mold, that is, in the smelting stage, and the aluminum liquid with hydrogen will cause the aluminum rod to have bubbles after being gradually cooled in the mold. In addition, the gate of the mold is a single gate and is located at the top of the mold. Since air is left in the mold when the aluminum liquid is not injected, when the single gate that is too large is poured from top to bottom, on the one hand, a large amount of air will be carried into the mold due to severe turbulence, and on the other hand, the existing air in the mold is blocked and not easy to be discharged, so that a large number of bubbles are formed on the surface of the aluminum rod after cooling. Summary of the invention

[0005] The purpose of the present invention is to provide an aluminum rod thermoplastic forming device, and the technical problems to be solved are as follows: the existing aluminum rod forming device is inconvenient to demould when in use, and the bubbles in the aluminum liquid cannot be effectively cleaned, resulting in poor surface quality of the finished product.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A thermoplastic forming device for aluminum rods comprises a main frame, a plurality of movable supports are installed on the bottom surface of the main frame, at least one vibration motor is installed on the main frame, and the vibration motor is used to vibrate the main frame; a lifting platform is installed on one side inside the main frame, and a guide rod group is installed on the other side, a top plate is installed between the lifting platform and the guide rod group, a plurality of upper molds are evenly installed on the bottom surface of the top plate, and the distance between the top plate and the upper mold is adjustable; a plurality of guide rails are installed on the bottom of the main frame, a bottom plate is fixedly connected between the top ends of the guide rails, a lower mold is installed on the top end of the bottom plate to adapt to the upper mold, the moving direction of the upper mold is perpendicular to the moving direction of the lower mold, a detachable shunt pipe is installed between the upper mold and the lower mold, and the injection port at the bottom of the shunt pipe is located at the bottom inside the lower mold.

[0008] As a further solution of the present invention: the movable support includes a plurality of springs fixedly connected to the bottom surface of the main frame, a support plate is installed on the bottom surface of the springs, and the support plate is fixedly connected to the support surface.

[0009] As a further solution of the present invention: the lifting platform includes vertical rails on both sides, a slide is slidably connected between the two vertical rails, a screw is rotatably connected to the middle of the lifting platform, the screw is rotatably connected to the slide, and a turning handle is fixedly connected to the top, a mounting seat is installed on one side of the slide, the guide rod group includes two guide rods fixedly connected to the side of the main frame away from the lifting platform, a slide cylinder is fixedly connected to the top of the top plate to adapt to the guide rods, and the guide rod is slidably connected to the slide cylinder.

[0010] As a further solution of the present invention: the top end of the upper die is fixedly connected to two rotating seats, the top end of the rotating seat is rotatably connected to a positioning rod, and the positioning rod is threadedly connected to the top plate.

[0011] As a further solution of the present invention: the top of the bottom plate is adapted to the lower mold and is fixedly connected to two mold lower plates, the lower mold is installed between the tops of the two mold lower plates, and a handle is fixedly connected to one side of the bottom plate.

[0012] As a further solution of the present invention: the bottom surface of the base plate is adapted to the guide rail and a plurality of sliders are installed, the width of the base plate does not exceed half the length of the guide rail, and the bottom surface of the main frame is fixedly connected to a limiting plate on one side away from the handle.

[0013] As a further solution of the present invention: the diversion pipe includes a main flow pipe that passes through the top plate, the main flow pipe is connected to two secondary flow pipes at the bottom of the top plate, the secondary flow pipe is connected to two liquid injection top pipes on one side of the upper mold, and the bottom surface of the lower mold is adapted to be equipped with a liquid injection bottom pipe for each of the liquid injection top pipes.

[0014] As a further solution of the present invention: a locking nut is installed between adjacent surfaces of the liquid injection top tube and the liquid injection bottom tube, the diameter of the liquid injection bottom tube is smaller than the diameter of the main pipe, and the port at the bottom of the liquid injection bottom tube is arranged on the bottom surface inside the lower mold and is tangent to the adjacent arc surface.

[0015] Beneficial effects of the present invention:

[0016] 1. By installing a spring-loaded movable support on the bottom of the main frame and installing vibration motors on both sides of the main frame, after the liquid injection into each mold is completed, the bubbles of aluminum liquid in the mold can be crushed and merged by vibrating the main frame, so that the bubbles are gathered and discharged or crushed into extremely fine bubbles that cannot be detected by the naked eye, thereby improving the surface quality of the aluminum rod after demolding;

[0017] 2. By installing a detachable shunt pipe between the upper and lower molds, the existing single injection port is divided into multiple injection bottom pipes set at the bottom of the lower mold. The technical advantage is that avoiding a large flow rate of single-port injection can effectively reduce the generation of eddies during the injection process, thereby reducing the phenomenon of external gas being drawn in by the eddies; further, since the aluminum liquid enters the bottom of the lower mold as a multi-point thin stream during injection, and the injection end is tangent to the inside of the lower mold, the aluminum liquid enters the cavity more smoothly and stably, and is injected from bottom to top. This injection method can reduce the external air from being drawn in, and can also gradually exhaust the air originally trapped in the cavity, thereby reducing the air content inside the aluminum liquid. That is, after adopting a shunt pipe and setting the injection port at multiple points inside the lower mold, the quality of the aluminum rod generated can be improved by reducing the tape and improving the air exhaust efficiency.

[0018] 3. By installing a lifting platform and a guide rod group on both sides of the main frame respectively, installing a top plate between the lifting platform and the top of the guide rod group, and installing multiple upper molds on the bottom of the top plate, and setting a positioning rod that can independently adjust the height for the upper mold, cooperating with the lower mold installed at the bottom of the main frame that can move laterally and adapt to the upper mold, the lower mold can be pulled out after the aluminum rod is generated, and then the mold is removed, avoiding the one-way splitting mode when the upper and lower molds are split in the prior art, and making the moving directions of the upper and lower molds perpendicular to each other while ensuring that the upper and lower molds can be accurately docked. The technical advantage is that it avoids insufficient mold removal space during demoulding, improves demoulding efficiency, and reduces the risk of collision with opposite mold cavities; that is, when the device is in use, it can quickly prepare and demould multiple high-quality aluminum rods with smooth surfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 The present invention Figure 1A magnified detail of the center A;

[0022] Figure 3 It is a schematic diagram of the back structure of the present invention;

[0023] Figure 4 The present invention Figure 3 A magnified view of the detail at B in the middle;

[0024] Figure 5 It is a partial detail enlarged view of the present invention;

[0025] Figure 6 The present invention Figure 5 Enlarged detail of point C in the middle.

[0026] In the figure: 1. main frame; 2. movable support; 3. vibration motor; 4. lifting platform; 5. guide rod group; 6. top plate; 7. upper mold; 8. guide rail; 9. bottom plate; 10. lower mold; 11. diverter pipe; 12. vertical rail; 13. slide; 14. screw; 15. handle; 16. mounting seat; 17. guide rod; 18. slide cylinder; 19. rotating seat; 20. adjustment rod; 21. lower mold plate; 22. handle; 23. slide block; 24. limit plate; 25. main flow pipe; 26. secondary flow pipe; 27. injection top pipe; 28. injection bottom pipe; 29. ​​locking nut. DETAILED DESCRIPTION

[0027] 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.

[0028] like Figures 1 to 6 As shown, a thermoplastic forming device for aluminum rods comprises a main frame 1, movable supports 2 are installed at the four corners of the bottom end of the main frame 1, vibration motors 3 are installed on both sides of the main frame 1, and the vibration motors 3 are used to vibrate the main frame 1; a lifting platform 4 is installed on one side of the main frame 1, and a guide rod group 5 is installed on the other side, a top plate 6 is installed between the lifting platform 4 and the guide rod group 5, three upper molds 7 are evenly installed on the bottom surface of the top plate 6, and the distance between the top plate 6 and the upper mold 7 is adjustable; two guide rails 8 are installed at the bottom of the main frame 1, a bottom plate 9 is fixedly connected between the top ends of the two guide rails 8, and a lower mold 10 is installed on the top end of the bottom plate 9 to adapt to each upper mold 7, the moving direction of the upper mold 7 is perpendicular to the moving direction of the lower mold 10, a detachable shunt pipe 11 is installed between the upper mold 7 and the lower mold 10, and the injection port at the bottom of the shunt pipe 11 is located at the bottom of the lower mold 10;

[0029] It should be noted that the main frame 1 is U-shaped as a whole, and two vibration motors 3 are installed on the outer sides of the side panels on both sides. The two sides perpendicular to the side panels are in an open state. The upper mold 7 moves vertically during the entire use of the casting mold, and the lower mold 10 moves horizontally when shifting. The main frame 1 with an open state in the middle is convenient for separating the lower mold 10 from the upper mold 7 after the aluminum rod is formed, that is, it is convenient for demolding; the movable support 2 includes four springs fixedly connected to the bottom surface of the main frame 1, and a support plate is installed on the bottom surface of the spring. The support plate and the support surface are fixedly connected to ensure that the main frame 1 will not be displaced during the vibration of the vibration motor 3. The vibration motor 3 causes the main frame 1 to deviate from the originally predetermined vibration trajectory; when working, it will drive the main frame 1 to vibrate. Since four spring brackets are installed on the bottom surface of the main frame 1, the vibration will cause the three molds installed on it to vibrate synchronously. The purpose of the vibration is to disturb the bubbles inside the aluminum liquid after the aluminum liquid in each mold is injected, thereby reducing its stability in the aluminum liquid and making it easier for it to overflow from the aluminum liquid. The increased fluidity caused by the vibration makes the tiny bubbles gather into larger bubbles, making them easy to discharge. That is, the discharge efficiency of the bubbles in the aluminum liquid is improved by vibration, thereby improving the surface quality of the aluminum rod after forming.

[0030] like Figures 1 to 3 As shown, the lifting platform 4 includes vertical rails 12 on both sides, a slide 13 is slidably connected between the two vertical rails 12, a screw rod 14 is rotatably connected to the middle of the lifting platform 4, the screw rod 14 is rotatably connected to the slide 13, and extends to the top of the lifting platform 4 and is fixedly connected to a handle 15, a mounting seat 16 is installed on one side of the slide 13, the guide rod group 5 includes two guide rods 17 fixedly connected to the side of the main frame 1 away from the lifting platform 4, and the top plate 6 is adapted to the two guide rods 17 and fixedly connected to the slide 18;

[0031] The top of the upper die 7 is fixedly connected to two rotating seats 19, the top of the rotating seat 19 is rotatably connected to the adjusting rod 20, and the adjusting rod 20 is threadedly connected to the top plate 6;

[0032] It should be noted that after rotating the handle 15 at the top of the lifting platform 4, the slide 13 moves in the vertical plane accordingly. The mounting seat 16 is L-shaped, and the bottom surface of one side thereof is fixedly connected to the top of the top plate 6 by screws. Then the top plate 6 moves along with the mounting seat 16, and the slide cylinder 18 installed on the other side of the top plate 6 slides along the two guide rods 17, so as to realize the vertical movement control of the top plate 6. During the vertical movement, the top plate 6 drives the upper mold 7 installed thereon to move, thereby completing the overall vertical displacement of each upper mold 7; after completing the overall movement of each upper mold 7, since the upper mold 7 and the lower mold 10 need to ensure the sealing state when the mold is closed, it is also necessary to vertically fine-tune the final position of the upper mold 7. The height of each single upper mold 7 can be adaptively adjusted by rotating the adjusting rod 20 to ensure that the corresponding lower mold 10 is accurately closed. The purpose is to improve the casting efficiency while taking into account the sealing performance of each mold when the mold is closed.

[0033] like Figures 3 to 5 As shown, the top of the bottom plate 9 is adapted to the lower mold 10 and fixedly connected to two mold lower plates 21, the lower mold 10 is installed between the tops of the two mold lower plates 21, and a handle 22 is fixedly connected to one side of the bottom plate 9;

[0034] Four sliders 23 are installed on the bottom surface of the bottom plate 9 to match the guide rail 8. The width of the bottom plate 9 does not exceed half the length of the guide rail 8. A limit plate 24 is fixedly connected to the side of the bottom surface of the main frame 1 away from the handle 22.

[0035] It should be noted that the upper mold 7 needs to be molded with the lower mold 10 before the aluminum liquid can be injected into the cavity. It can be seen from the above content that after the upper mold 7 is collectively moved downward, the vertical position can be fine-tuned by the positioning rod 20 for positioning, and the lower mold 10 installed at the bottom of the main frame 1 can be moved horizontally along the guide rail 8. Since the width of the bottom plate 9 does not exceed half the length of the guide rail 8, each slider 23 is installed on one side of the guide rail 8, so it can be moved horizontally by the handle 22, and its moving end point is limited by the limiting plate 24, so that the two half molds can be accurately docked by moving vertically to each other. The purpose is to avoid a single-direction mold clamping method. Since the mold clamping is a periodic action, the travel distance between the two half molds is usually short. When the aluminum rod is demolded in the single-direction mold clamping direction, there is a risk of damaging the opposite mold cavity due to collision, and it is also inconvenient to demold and remove the parts in a limited space. In contrast, in this device, after the mold is cooled, the peripheral bolts locked when the two half molds are clamped are loosened (see Figure 1 ), then use the turning handle 15 to separate each upper mold 7 from the lower mold 10, and finally pull the handle 22 to pull out the lower mold 10 together with the aluminum rod. At this time, the upper mold 7 and the lower mold 10 are separated from each other at different heights and different horizontal positions. When taking out the mold in the lower mold 10, there will be no risk of collision with the inner cavity of the upper mold 7, and taking out is also more convenient.

[0036] like Figure 5 and Figure 6 As shown, the flow distribution pipe 11 includes a main flow pipe 25 penetrating the top plate 6, the main flow pipe 25 is located at the bottom of the top plate 6 and connected to two secondary flow pipes 26, the secondary flow pipe 26 is located on one side of the upper mold 7 and connected to two injection top pipes 27, and the bottom surface of the lower mold 10 is adapted to each injection top pipe 27 and installed with an injection bottom pipe 28;

[0037] A locking nut 29 is installed between the adjacent surfaces of the top injection pipe 27 and the bottom injection pipe 28. The diameter of the bottom injection pipe 28 is smaller than the diameter of the main pipe 25. The bottom injection pipe 28 is located at the bottom surface inside the lower mold 10, and the port is tangent to the adjacent surface.

[0038] It should be noted that after the upper mold 7 and the lower mold 10 are closed, the injection top pipe 27 and the injection bottom pipe 28, which were originally in a separate state, are docked and locked by the locking nut 29, and then the aluminum liquid is injected from the main pipe 25 to the secondary flow pipes 26 on both sides of the upper mold 7, and then injected from the secondary flow pipes 26 to the injection top pipe 27 and the injection bottom pipe 28 on both sides. Since the aluminum liquid finally injected into the lower mold 10 is injected from four points, and the injection flow column is smaller due to the limitation of the pipe diameter, its purpose is to reduce the entry of the rolled gas into the mold cavity caused by the injection of a single large pipe through the multi-point micro-pipeline injection method. In addition, since the aluminum liquid is continuously injected along the cross section from the inner surface of the lower mold 10 in four directions, the cavity containing air in the mold will be gradually emptied from bottom to top by the injected aluminum liquid, that is, the bottom injection method with multiple points can gradually empty the air in the cavity while injecting the liquid, avoiding the air in the cavity being blocked by the aluminum liquid when injecting the aluminum liquid, causing gas retention. This improves the efficiency of gas exhaust during the injection process, reduces the possibility of gas entrainment, and improves the quality of the finished product.

[0039] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An aluminum rod thermoplastic forming device, comprising a main frame (1), characterized in that: The bottom surface of the main frame (1) is equipped with a plurality of movable supports (2), and the main frame (1) is equipped with at least one vibration motor (3), and the vibration motor (3) is used to vibrate the main frame (1); a lifting platform (4) is installed on one side of the main frame (1), and a guide rod group (5) is installed on the other side; a top plate (6) is installed between the lifting platform (4) and the guide rod group (5); a plurality of upper molds (7) are evenly installed on the bottom surface of the top plate (6), and a plurality of upper molds (7) are installed between the top plate (6) and the upper mold (7). The distance between the two molds is adjustable; a plurality of guide rails (8) are installed at the bottom of the main frame (1); a bottom plate (9) is fixedly connected between the top ends of the guide rails (8); a bottom mold (10) is installed at the top end of the bottom plate (9) to fit the upper mold (7); the moving direction of the upper mold (7) is perpendicular to the moving direction of the lower mold (10); a detachable shunt pipe (11) is installed between the upper mold (7) and the lower mold (10); and a liquid injection port at the bottom of the shunt pipe (11) is located at the bottom of the lower mold (10).

2. The aluminum rod thermoplastic forming device according to claim 1, characterized in that: The movable support (2) comprises a plurality of springs fixedly connected to the bottom surface of the main frame (1); a support plate is installed on the bottom surface of the springs; and the support plate is fixedly connected to the support surface.

3. The aluminum rod thermoplastic forming device according to claim 1, characterized in that: The lifting platform (4) includes vertical rails (12) on both sides, a slide (13) is slidably connected between the two vertical rails (12), a screw rod (14) is rotatably connected to the middle of the lifting platform (4), the screw rod (14) is rotatably connected to the slide (13), and a rotating handle (15) is fixedly connected to the top end, a mounting seat (16) is installed on one side of the slide (13), the guide rod group (5) includes two guide rods (17) fixedly connected to the side of the main frame (1) away from the lifting platform (4), the top of the top plate (6) is adapted to the guide rod (17) and fixedly connected to a slide cylinder (18), and the guide rod (17) is slidably connected to the slide cylinder (18).

4. The aluminum rod thermoplastic forming device according to claim 1, characterized in that: The top of the upper die (7) is fixedly connected to two rotating seats (19), the top of the rotating seat (19) is rotatably connected to a positioning rod (20), and the positioning rod (20) is threadedly connected to the top plate (6).

5. The aluminum rod thermoplastic forming device according to claim 1, characterized in that: The top of the bottom plate (9) is adapted to fit the lower die (10) and is fixedly connected to two die lower plates (21); the lower die (10) is installed between the tops of the two die lower plates (21); and a handle (22) is fixedly connected to one side of the bottom plate (9).

6. The aluminum rod thermoplastic forming device according to claim 5, characterized in that: The bottom surface of the base plate (9) is adapted to fit the guide rail (8) and is provided with a plurality of sliding blocks (23); the width of the base plate (9) does not exceed half the length of the guide rail (8); and a limiting plate (24) is fixedly connected to the bottom surface of the main frame (1) on a side away from the handle (22).

7. The aluminum rod thermoplastic forming device according to claim 1, characterized in that: The branch pipe (11) includes a main pipe (25) penetrating the top plate (6); the main pipe (25) is connected to two secondary pipes (26) at the bottom of the top plate (6); the secondary pipe (26) is connected to two liquid injection top pipes (27) at one side of the upper mold (7); and the bottom surface of the lower mold (10) is adapted to fit each of the liquid injection top pipes (27) and is provided with a liquid injection bottom pipe (28).

8. The aluminum rod thermoplastic forming device according to claim 7, characterized in that: A locking nut (29) is installed between the adjacent surfaces of the liquid injection top pipe (27) and the liquid injection bottom pipe (28); the diameter of the liquid injection bottom pipe (28) is smaller than the diameter of the main pipe (25); and the port at the bottom of the liquid injection bottom pipe (28) is arranged on the bottom surface inside the lower mold (10) and is tangent to the adjacent arc surface.

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