Aluminum alloy profile hot extrusion die

Abstract

The utility model belongs to the field of production of aluminum alloy sections, particularly relates to a hot extrusion die for aluminum alloy sections, and aims to solve the problem of poor extrusion effect caused by incapability of well controlling the temperature of the conventional hot extrusion die. The number of the supporting blocks is four, and the four supporting blocks are fixedly connected to the bottom plate; the top plate is fixedly connected to the four supporting blocks; the screw device is arranged on the top plate; the limiting device is arranged on the screw rod device; the first preheating device is arranged on the top plate; the chain wheel and chain transmission mechanism is arranged on one side of the lower die; the fan blade cooling device is arranged on the chain wheel and chain transmission mechanism; the temperature of the lower die can be adjusted through the second preheating device, and the extrusion effect is improved.

Description

Technical Field

[0001] The present application relates to the field of aluminum alloy profile production, and in particular to a hot extrusion die for aluminum alloy profiles. Background Art

[0002] The hot extrusion die is the most important component for hot extrusion of aluminum profiles. It not only determines the geometric shape, dimensional accuracy and surface state of the profile, but also affects the extrusion force and the structural properties of the profile. When working, the hot extrusion die is subjected to long-term high temperature, high pressure, high friction and local stress concentration.

[0003] Patent No. CN109772921A discloses a hot extrusion die for aluminum alloy profiles, including an upper die and a lower die, wherein the upper die is provided with a diverter hole, a diverter bridge, a bolt connection hole, a pin hole, a blind hole and a die core, and the lower die is provided with a welding chamber, an empty knife, a working belt, bolts and pins. The bolts and pins on the lower die are inserted into the bolt connection holes and the pin holes on the upper die to connect the upper die and the lower die to be assembled into one, the diverter hole is connected to the welding chamber, and the working belt is arranged at the bottom of the welding chamber and connected to the empty knife; a screw is installed in the middle of the blind hole, and a horizontal adjustment shaft and a vertical adjustment shaft are arranged at the upper and bottom parts thereof, a nut is sleeved on the screw, and the nut is rotatably connected to the connecting block, one end of the umbrella-shaped guide piece is hingedly installed at the bottom of the connecting block, and the other end is connected to the water flow baffle, and the water flow baffle is fixedly connected to the long arc plate through the connecting shaft, and the top center of the long arc plate corresponds to the chute embedded on the horizontal adjustment shaft and the vertical adjustment shaft and is rollingly installed with a ball.

[0004] Patent No. CN109772921 B discloses a hot extrusion die for aluminum alloy profiles, including an upper die and a lower die, wherein the upper die is provided with a diverter hole, a diverter bridge, a bolt connection hole, a pin hole, a blind hole and a die core, and the lower die is provided with a welding chamber, an empty knife, a working belt, bolts and pins, the bolts and pins on the lower die are inserted into the bolt connection holes and the pin holes on the upper die to connect the upper die and the lower die to be assembled into one, the diverter hole is connected to the welding chamber, the working belt is arranged at the bottom of the welding chamber and is connected to the empty knife; a screw is installed in the middle of the blind hole, and a horizontal adjustment shaft and a vertical adjustment shaft are arranged at the upper and bottom parts thereof, a nut is sleeved on the screw, and the nut is rotatably connected to the connecting block, one end of the umbrella-shaped guide piece is hingedly installed at the bottom of the connecting block, and the other end is connected to the water flow baffle, and the water flow baffle is fixedly connected to the long arc plate through the connecting shaft, and the top center of the long arc plate corresponds to the chute embedded on the horizontal adjustment shaft and the vertical adjustment shaft and is rollingly installed with a ball.

[0005] However, the existing hot extrusion die has the problem that the temperature cannot be well controlled, which leads to poor extrusion effect. Therefore, a hot extrusion die for aluminum alloy profiles is proposed. Utility Model Content

[0006] In order to improve the problem that the existing hot extrusion die cannot well control the temperature, thus resulting in poor extrusion effect, the present application provides an aluminum alloy profile hot extrusion die.

[0007] The present application provides an aluminum alloy profile hot extrusion die adopting the following technical solution:

[0008] A hot extrusion die for an aluminum alloy profile, comprising:

[0009] Base plate;

[0010] Support blocks, four of which are provided and all are fixedly connected to the bottom plate;

[0011] A top plate, which is fixedly connected to four support blocks;

[0012] A lower die, which is fixedly connected to the bottom plate;

[0013] A screw device, wherein the screw device is arranged on the top plate;

[0014] A limiting device, the limiting device is arranged on the screw device;

[0015] A first preheating device, the first preheating device is arranged on the top plate;

[0016] A sprocket chain transmission mechanism, wherein the sprocket chain transmission mechanism is arranged on one side of the lower die;

[0017] The fan blade cooling device is arranged on the sprocket chain transmission mechanism;

[0018] The second preheating device is arranged on one side of the lower mold.

[0019] Furthermore, the screw device includes a rotating motor, a screw and a baffle, the rotating motor is fixedly mounted on the top plate, the output shaft of the rotating motor is fixedly connected to the screw, the screw is threadedly connected to the baffle, the bottom of the baffle is fixedly connected to an extrusion block, and the screw device is used to drive the baffle and the extrusion block to move.

[0020] Furthermore, the limiting device includes two guide rods, the top plate is provided with two first openings, and the two guide rods are slidably connected to the two first openings respectively.

[0021] Furthermore, the first preheating device includes a heating chamber, a plurality of electric heating wires and an electric fan, the top plate is fixedly connected to the heating chamber, a third opening is provided on the heating chamber, the electric fan is fixedly installed on the third opening, the plurality of electric heating wires are fixedly connected to the heating chamber, an air duct is fixedly connected to the bottom of the heating chamber, an air pump is fixedly connected to the baffle, the air pump is fixedly connected to the air duct, a second preheating tube is embedded in the extrusion block, an air outlet is provided on the baffle, the air pump and the air outlet are fixedly connected to both ends of the second preheating tube respectively, and the first preheating device is used to preheat the extrusion block.

[0022] Furthermore, the sprocket chain transmission mechanism includes three sprockets, a chain, a fixed plate, a support frame and a motor, the two ends of the fixed plate are respectively fixedly connected to two of the four support blocks, the fixed plate is fixedly connected to the support frame, the motor is fixedly installed on the support frame, the output shaft of the motor is fixedly connected to one of the three sprockets, and the three sprockets are connected to the chain transmission.

[0023] Furthermore, the fan blade cooling device includes three fan blades, three second openings are opened on the fixed plate, three sprockets are fixedly connected to the three fan blades respectively, and the fan blade cooling device is used to cool the workpiece inside the lower mold.

[0024] Furthermore, the second preheating device includes a heating boiler, a temperature controller and a first preheating tube, the heating boiler is fixedly installed on the bottom plate, the temperature controller is fixedly installed on one side of the heating boiler, a water pump is fixedly connected to the heating boiler, the water pump and the heating boiler are respectively fixedly connected to the two ends of the first preheating tube, and the second preheating device is used to preheat the lower mold.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The temperature of the lower die can be adjusted through the second preheating device to improve the extrusion effect.

[0027] 2. The sprocket chain transmission mechanism and the fan blade cooling device can quickly cool down the extruded workpiece, making it easier for the operator to pick it up. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure in Example 1 of the present application;

[0029] Figure 2 It is a schematic structural diagram of the first preheating device in Example 1 of the present application;

[0030] Figure 3 It is a schematic diagram of the connection structure of the sprocket chain transmission mechanism and the fan blade cooling device in the first embodiment of the present application;

[0031] Figure 4 It is a schematic diagram of the connection structure of the screw device, the first preheating device and the limiting device in Example 1 of the present application;

[0032] Figure 5 It is a schematic diagram of the structure of the first preheating device in Example 1 of the present application.

[0033] Figure numerals: 1. guide rod; 2. rotating motor; 3. first opening; 4. top plate; 5. fixing plate; 6. support block; 7. bottom plate; 8. lower mold; 9. first preheating tube; 10. heating boiler; 11. water pump; 12. temperature controller; 13. second preheating tube; 14. sprocket; 15. support frame; 16. chain; 17. second opening; 18. fan blade; 19. motor; 20. screw; 21. baffle; 22. extrusion block; 23. heating chamber; 24. electric fan; 25. third opening; 26. air pump; 27. heating wire; 28. air guide tube; 29. ​​air outlet. DETAILED DESCRIPTION

[0034] Embodiment 1

[0035] The following is combined with Figure 1-Figure 5 The first embodiment of the present application is described in further detail.

[0036] A method for installing a hot extrusion die for aluminum alloy profiles Figure 1 ,include:

[0037] Bottom plate 7;

[0038] Support blocks 6, four of which are provided and all of which are fixedly connected to the bottom plate 7;

[0039] A top plate 4, the top plate 4 is fixedly connected to four support blocks 6;

[0040] A lower die 8, the lower die 8 is fixedly connected to the bottom plate 7;

[0041] A screw device, the screw device is arranged on the top plate 4;

[0042] A limiting device, the limiting device is arranged on the screw device;

[0043] A first preheating device, the first preheating device is arranged on the top plate 4;

[0044] A sprocket chain transmission mechanism, which is arranged on one side of the lower mold 8;

[0045] The fan blade cooling device is arranged on the sprocket chain transmission mechanism;

[0046] The second preheating device is arranged on one side of the lower mold 8.

[0047] Reference Figure 2 The second preheating device includes a heating boiler 10, a temperature controller 12 and a first preheating tube 9. The heating boiler 10 is fixedly installed on the bottom plate 7. The temperature controller 12 is fixedly installed on one side of the heating boiler 10. A water pump 11 is fixedly connected to the heating boiler 10. The water pump 11 and the heating boiler 10 are respectively fixedly connected to the two ends of the first preheating tube 9. The second preheating device is used to preheat the lower mold 8.

[0048] Reference Figure 3 The sprocket chain transmission mechanism includes three sprockets 14, a chain 16, a fixed plate 5, a support frame 15 and a motor 19. The two ends of the fixed plate 5 are respectively fixedly connected to two of the four support blocks 6, the fixed plate 5 is fixedly connected to the support frame 15, the motor 19 is fixedly installed on the support frame 15, the output shaft of the motor 19 is fixedly connected to one of the three sprockets 14, the three sprockets 14 are transmission-connected to the chain 16, the fan blade cooling device includes three fan blades 18, three second openings 17 are opened on the fixed plate 5, the three sprockets 14 are respectively fixedly connected to the three fan blades 18, and the fan blade cooling device is used to cool the workpiece inside the lower mold 8.

[0049] Reference Figure 4 and Figure 5 The screw device includes a rotating motor 2, a screw 20 and a baffle 21. The rotating motor 2 is fixedly installed on the top plate 4. The output shaft of the rotating motor 2 is fixedly connected to the screw 20. The screw 20 is threadedly connected to the baffle 21. The bottom of the baffle 21 is fixedly connected with an extrusion block 22. The screw device is used to drive the baffle 21 and the extrusion block 22 to move. The limiting device includes two guide rods 1. Two first openings 3 are provided on the top plate 4. The two guide rods 1 are respectively slidably connected to the two first openings 3. The first preheating device includes a heating chamber 23, a plurality of electric heating wires 27 and an electric fan 24. The top plate 4 and The heating chamber 23 is fixedly connected, a third opening 25 is provided on the heating chamber 23, an electric fan 24 is fixedly installed on the third opening 25, a plurality of electric heating wires 27 are fixedly connected to the heating chamber 23, an air duct 28 is fixedly connected to the bottom of the heating chamber 23, an air pump 26 is fixedly connected to the baffle 21, the air pump 26 is fixedly connected to the air duct 28, a second preheating tube 13 is embedded in the extrusion block 22, an air outlet 29 is provided on the baffle 21, the air pump 26 and the air outlet 29 are fixedly connected to both ends of the second preheating tube 13 respectively, and the first preheating device is used to preheat the extrusion block 22.

[0050] The implementation principle of the hot extrusion die for aluminum alloy profiles in the embodiment of the present application is as follows: when in use, the electric fan 24 is started, the electric fan 24 absorbs air into the heating chamber 23, and the air is heated by multiple electric heating wires 27. The hot air is sucked into the second preheating tube 13 by the air pump 26 to preheat the extrusion block 22. The air that has completed the heat replacement is discharged from the air outlet 29. Then, the heating boiler 10 is started, and the temperature controller 12 is adjusted to heat the water inside the heating boiler 10 to the required temperature. The water pump 11 is started, and the water pump 11 draws water into the first preheating tube 9. The first preheating tube 9 preheats the lower die 8. Then, the rotating motor 2 is started, The rotating motor 2 drives the screw 20 to rotate, and the rotation of the screw 20 drives the two guide rods 1, the baffle 21 and the extrusion block 22 to move downward, and the aluminum alloy profile placed on the lower mold 8 is extruded into a required shape, and then the rotating motor 2 is started again, and the rotating motor 2 drives the screw 20 to rotate, and the screw 20 returns the two guide rods 1, the baffle 21 and the extrusion block 22 to their original positions, and the motor 19 is started. The motor 19 drives one of the three sprockets 14 to rotate, and the sprocket 14 drives the other two sprockets 14 to rotate through the chain 16. The three sprockets 14 respectively drive the three fan blades 18 to rotate, and the three fan blades 18 cool the workpiece placed on the lower mold 8.

[0051] Embodiment 2

[0052] The difference between this embodiment and the first embodiment is that two slots are fixedly connected to the lower die 8. The operator aligns the raw material with the slots and pushes it onto the recess of the upper die 8. The two slots limit the position of the raw material to prevent the raw material from being offset during the extrusion process, thereby causing the problem of low product quality.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hot extrusion die for aluminum alloy profiles, characterized in that: include: Bottom plate (7); Support blocks (6), four support blocks (6) are provided, and the four support blocks (6) are all fixedly connected to the bottom plate (7); A top plate (4), the top plate (4) being fixedly connected to four support blocks (6); A lower mold (8), the lower mold (8) is fixedly connected to the bottom plate (7); A screw device, the screw device is arranged on the top plate (4); A limiting device, the limiting device is arranged on the screw device; A first preheating device, the first preheating device is arranged on the top plate (4); A sprocket chain transmission mechanism, wherein the sprocket chain transmission mechanism is arranged on one side of the lower mold (8); The fan blade cooling device is arranged on the sprocket chain transmission mechanism; The second preheating device is arranged on one side of the lower mold (8).

2. The aluminum alloy profile hot extrusion die according to claim 1, characterized in that: The screw device comprises a rotary motor (2), a screw (20) and a baffle (21); the rotary motor (2) is fixedly mounted on the top plate (4); the output shaft of the rotary motor (2) is fixedly connected to the screw (20); the screw (20) is threadedly connected to the baffle (21); the bottom of the baffle (21) is fixedly connected to an extrusion block (22); and the screw device is used to drive the baffle (21) and the extrusion block (22) to move.

3. The aluminum alloy profile hot extrusion die according to claim 2, characterized in that: The limiting device comprises two guide rods (1), two first openings (3) are provided on the top plate (4), and the two guide rods (1) are respectively slidably connected to the two first openings (3).

4. The aluminum alloy profile hot extrusion die according to claim 3, characterized in that: The first preheating device comprises a heating chamber (23), a plurality of electric heating wires (27) and an electric fan (24); the top plate (4) is fixedly connected to the heating chamber (23); a third opening (25) is provided on the heating chamber (23); the electric fan (24) is fixedly mounted on the third opening (25); the plurality of electric heating wires (27) are fixedly connected to the heating chamber (23); an air guide pipe (28) is fixedly connected to the bottom of the heating chamber (23); an air pump (26) is fixedly connected to the baffle (21); the air pump (26) is fixedly connected to the air guide pipe (28); a second preheating pipe (13) is embedded in the extrusion block (22); an air outlet (29) is provided on the baffle (21); the air pump (26) and the air outlet (29) are respectively fixedly connected to two ends of the second preheating pipe (13); and the first preheating device is used for preheating the extrusion block (22).

5. The aluminum alloy profile hot extrusion die according to claim 4, characterized in that: The sprocket chain transmission mechanism comprises three sprockets (14), a chain (16), a fixed plate (5), a support frame (15) and a motor (19); two ends of the fixed plate (5) are respectively fixedly connected to two of the four support blocks (6); the fixed plate (5) is fixedly connected to the support frame (15); the motor (19) is fixedly mounted on the support frame (15); an output shaft of the motor (19) is fixedly connected to one of the three sprockets (14); and the three sprockets (14) are drivingly connected to the chain (16).

6. The aluminum alloy profile hot extrusion die according to claim 5, characterized in that: The fan blade cooling device comprises three fan blades (18), three second openings (17) are provided on the fixed plate (5), and three sprocket wheels (14) are respectively fixedly connected to the three fan blades (18). The fan blade cooling device is used to cool the workpiece inside the lower mold (8).

7. The aluminum alloy profile hot extrusion die according to claim 6, characterized in that: The second preheating device comprises a heating boiler (10), a temperature controller (12) and a first preheating tube (9); the heating boiler (10) is fixedly mounted on a bottom plate (7); the temperature controller (12) is fixedly mounted on one side of the heating boiler (10); a water pump (11) is fixedly connected to the heating boiler (10); the water pump (11) and the heating boiler (10) are respectively fixedly connected to two ends of the first preheating tube (9); and the second preheating device is used to preheat the lower mold (8).

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