Aluminum alloy extrusion forming die convenient to replace

Abstract

The utility model relates to the technical field of extrusion die equipment, and discloses an aluminum alloy extrusion forming die convenient to replace, the upper end of a base is fixedly connected with a lower die, the inner side of the lower die is provided with a forming box, the lower die is internally provided with a mounting groove, and a limiting clamping block driven by a movable block is arranged in a first sealing groove; an external air pump is used for introducing air into the pipeline connector and the air inlet hole, the air enters a first sealing cavity to push a first alloy piston, then a movable block is driven to move towards the inner side, limiting clamping blocks on the movable block move inwards along with the movable block and are clamped into clamping grooves in the two sides of the forming box, mounting and fixing of the forming box are completed, and on the contrary, the air is exhausted from the air inlet hole; the first alloy piston drives the movable block to move outwards under the action of air pressure difference, the limiting clamping block is separated from the clamping groove, the forming box can be easily taken out, the mold replacement time is greatly shortened, and compared with a traditional overall mold replacement mode, the production efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of extrusion die equipment technology, and in particular to an easily replaceable aluminum alloy extrusion die. Background Technology

[0002] In modern industrial production, aluminum alloy extrusion molding dies are widely used in many fields. In the construction industry, the manufacturing of aluminum alloy doors, windows, and curtain wall profiles is inseparable from these dies; in the automotive industry, aluminum alloy extrusion molding dies play a key role in the manufacturing of aluminum alloy wheels, body frames, and other parts; in the aerospace field, to meet the stringent requirements for lightweight and high-strength materials, a large number of aluminum alloy structural components are also produced using these dies.

[0003] Currently, the internal shape of the forming groove of most molds is designed as an integrated and fixed unit. Once the production task needs to be adjusted, the entire mold has to be replaced. Not only do the workers need to remove the mold from the extrusion equipment, but they also have to spend a lot of time and energy to remove the various auxiliary parts connected to it, which causes the production line to stop for a long time and seriously affects production efficiency. Utility Model Content

[0004] The internal shape of the forming groove in most molds is designed as an integral and fixed unit. Once the production task needs to be adjusted, the entire mold has to be replaced. Not only do the workers need to disassemble the mold from the extrusion equipment, but they also have to spend a lot of time and energy to remove the various auxiliary components connected to it, resulting in long-term production line shutdowns and seriously affecting production efficiency. This utility model provides an easily replaceable aluminum alloy extrusion mold with the advantage of quick replacement of the forming groove module, which solves the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: an easily replaceable aluminum alloy extrusion molding die, including a base, a lower die fixedly connected to the upper end of the base, a forming box provided on the inner side of the lower die, an installation groove opened inside the lower die, symmetrical slots opened on both sides of the forming box, and first sealing cavities symmetrically opened on both sides of the lower die. Movable blocks are slidably connected inside the two first sealing cavities, and a first alloy piston is fixedly connected to one end of each movable block. A limit block is fixedly connected to the side of the movable block away from the first alloy piston. The inner side of the limit block passes through the installation groove and is connected to the inner side of the slot. Two air inlets are opened on the outer sides of each of the two first sealing cavities. Pipe joints are fixedly connected to both sides of the lower die, and the inner side of the pipe joints communicates with the air inlets. Limit blocks are symmetrically fixedly connected to the upper and lower ends inside the first sealing cavities.

[0006] Preferably, the bottom of the first sealing cavity is provided with an air guide channel, the bottom of the air guide channel is provided with a second sealing cavity, and the interior of the second sealing cavity is slidably connected with a limiting tooth plate.

[0007] By opening a gas guide channel at the bottom of the first sealed cavity, gas can smoothly enter the second sealed cavity.

[0008] Preferably, a second alloy piston is fixedly connected to the inner side of the limiting tooth plate, and two rectangular grooves are symmetrically opened on both sides of the bottom of the mounting groove. The rectangular grooves are connected to the second sealing cavity, and a rack top block is provided at the upper end of the rectangular groove.

[0009] The rack and pinion mechanism allows the molded box to be easily lifted within the mounting slot.

[0010] Preferably, when the limiting toothed plate moves closer to the rack top block, it engages with the side of the rack top block, and a telescopic rod is fixedly connected to the bottom of the rack top block.

[0011] The telescopic rod limits the vertical movement of the rack top block, allowing it to move only vertically.

[0012] Preferably, the bottom of the telescopic rod is fixedly connected to the bottom of the rectangular groove, and a return spring is provided on the outer side of the telescopic rod, with the upper end of the return spring fixedly connected to the bottom of the rack top block.

[0013] The reset spring provides elastic force to the rack top block, making it easy to lift and remove the rack top block.

[0014] Preferably, the molding box is inserted into the mounting groove, and the outside of the pipe joint is connected to an external air pump.

[0015] The air pressure environment inside the two sealed chambers is controlled by an external air pump. Under negative pressure, the limit block disengages from the limit slot, making it easier to disassemble the molding box.

[0016] This utility model has the following advantages:

[0017] 1. By using a movable block with a limiting block inside the first sealing groove, gas is introduced into the pipe joint and air inlet using an external air pump. The gas enters the first sealing cavity and pushes the first alloy piston, which in turn moves the movable block inward. The limiting block on the movable block moves inward and engages with the slots on both sides of the molding box, thus completing the installation and fixing of the molding box. Conversely, gas is discharged from the air inlet, and the first alloy piston moves the movable block outward under the action of air pressure difference. The limiting block disengages from the slot, and the molding box can be easily removed. This greatly shortens the mold change time and significantly improves production efficiency compared to the traditional method of replacing the entire mold.

[0018] 2. Through the interaction of the limiting toothed plate and the rack top block, the molding box will squeeze the two rack top blocks downward during installation. When gas is injected, some gas enters the second sealing chamber through the gas guide channel. The gas entering the second sealing chamber pushes the second alloy piston, which drives the limiting toothed plate to move and engage with the rack top block, thereby limiting the two rack top blocks and preventing them from moving randomly during the extrusion process. This enhances the stability of the molding box in the installation groove. When disassembling the molding box, the gas is extracted from the air inlet, and the air pressure in the first and second sealing chambers decreases. The limiting toothed plate disengages from the rack top block. At this time, under the action of the return spring, the two rack top blocks move upward, lifting the molding box to a certain height, making it convenient for operators to pick up the molding box and further improving the convenience of mold replacement. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall central sectional view of the present invention;

[0021] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B.

[0023] In the diagram: 1. Base; 2. Lower mold; 3. Molding box; 4. Slot; 5. Mounting slot; 6. First sealing cavity; 71. Movable block; 72. Limiting block; 73. First alloy piston; 74. Air inlet; 75. Pipe joint; 76. Limiting block; 8. Air guide channel; 9. Second sealing cavity; 10. Limiting toothed plate; 11. Second alloy piston; 12. Rack top block; 13. Rectangular groove; 14. Telescopic rod; 15. Return spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1The easily replaceable aluminum alloy extrusion molding die includes a base 1, a lower die 2 fixedly connected to the upper end of the base 1, a molding box 3 provided on the inner side of the lower die 2, an installation groove 5 opened inside the lower die 2, and slots 4 symmetrically opened on both sides of the molding box 3.

[0026] Please see Figures 1-3 The lower mold 2 has symmetrically arranged first sealing cavities 6 on both sides. Movable blocks 71 are slidably connected inside the two first sealing cavities 6. A first alloy piston 73 is fixedly connected to one end of each movable block 71. A limiting block 72 is fixedly connected to the side of the movable block 71 away from the first alloy piston 73. The inner side of the limiting block 72 passes through the mounting groove 5 and is connected to the inner side of the slot 4. When gas enters the first sealing cavity 6, it pushes the first alloy piston 73, thereby causing the movable block 71 to move inward. The limiting block 72 on the movable block 71 moves inward accordingly and engages with the slots 4 on both sides of the molding box 3, completing the installation and fixing of the molding box 3. Conversely, gas is discharged from the air inlet 74. Under the action of the air pressure difference, the first alloy piston 73 drives the movable block 71... 1. Move outward, the limiting block 72 disengages from the slot 4, and the molding box 3 can be easily removed, greatly shortening the mold replacement time. Compared with the traditional method of replacing the mold as a whole, it significantly improves production efficiency. Two air inlets 74 are opened on the outer side of the two first sealing cavities 6. Pipe joints 75 are fixedly connected to both sides of the lower mold 2. Limiting blocks 76 are symmetrically fixedly connected to the upper and lower ends inside the first sealing cavity 6. The limiting blocks 76 are used to limit the movement distance of the limiting block 72 to avoid blocking the air guide channel 8. The inner side of the pipe joint 75 is connected to the air inlet 74. Through the limiting block 72 driven by the movable block 71 set in the first sealing groove, gas is introduced into the pipe joint 75 and the air inlet 74 by an external air pump.

[0027] Please see Figures 3-4 The bottom of the first sealing cavity 6 is provided with a gas guide channel 8, and the bottom of the gas guide channel 8 is provided with a second sealing cavity 9. Through the mutual cooperation of the limiting tooth plate 10 and the rack top block 12, the molding box 3 will squeeze the two rack top blocks 12 to move downward during the installation process. When gas is injected, some gas enters the second sealing cavity 9 through the gas guide channel 8. The limiting tooth plate 10 is slidably connected inside the second sealing cavity 9. The inner side of the limiting tooth plate 10 is fixedly connected with a second alloy piston 11. The gas entering the second sealing cavity 9 pushes the second alloy piston 11 and drives the limiting tooth plate 10 to move. Two rectangular grooves 13 are symmetrically opened on both sides of the bottom of the mounting groove 5. The rectangular grooves 13 are connected to the second sealing cavity 9.

[0028] Please see Figures 3-4The upper end of the rectangular groove 13 is provided with a rack top block 12. When the limiting toothed plate 10 moves towards one side of the rack top block 12, it engages with the side of the rack top block 12. A telescopic rod 14 is fixedly connected to the bottom of the rack top block 12. The bottom of the telescopic rod 14 is fixedly connected to the bottom of the rectangular groove 13. A return spring 15 is provided on the outside of the telescopic rod 14. The upper end of the return spring 15 is fixedly connected to the bottom of the rack top block 12. When the limiting toothed plate 10 moves to engage with the rack top block 12, the two rack top blocks 12 are limited, preventing them from moving randomly during the extrusion process. This enhances the stability of the molding box 3 in the mounting groove 5. When disassembling the molding box 3, it is pulled out from the air inlet 74. As the gas pressure in the first sealing chamber 6 and the second sealing chamber 9 decreases, the limiting tooth plate 10 disengages from the rack top block 12. At this time, under the action of the return spring 15, the two rack top blocks 12 move upward, lifting the molding box 3 to a certain height, making it convenient for operators to pick up the molding box 3 and further improving the convenience of mold replacement. The molding box 3 is inserted into the mounting slot 5, allowing operators to operate quickly, greatly saving the time of mold replacement and improving production efficiency. The outside of the pipe joint 75 is connected to an external air pump. By connecting it to an external air pump, the gas pressure environment in the first sealing chamber 6 and the second sealing chamber 9 can be easily controlled.

[0029] Working principle: In actual use, first align the molding box 3 with the mounting slot 5 of the lower mold 2 and slowly insert it. At this time, the molding box 3 presses down the rack top block 12, which compresses the telescopic rod 14 and squeezes the return spring 15, causing it to move downward. Then, connect the external air pump to the pipe joint 75 and start the air pump to inject gas into the air inlet 74. After the gas enters the first sealing cavity 6, it pushes the first alloy piston 73, causing the movable block 71 to slide inward. The limiting block 72 on the movable block 71 moves inward until it is locked into the slots 4 on both sides of the molding box 3, thus achieving the initial fixation of the molding box 3. At the same time, part of the gas injected into the first sealing cavity 6 enters the second sealing cavity 9 through the air guide channel 8. Inside the chamber 9, the gas pushes the second alloy piston 11, causing the limiting tooth plate 10 to move towards the rack top block 12 until the limiting tooth plate 10 engages with the side of the rack top block 12, preventing displacement during the aluminum alloy extrusion process. When the molding box 3 needs to be replaced, the gas inside the chamber is extracted and a negative pressure is formed. The first alloy piston 73 and the second alloy piston 11 are reset under the action of the air pressure difference. The movable block 71 drives the limiting block 72 to move outward and disengage from the slot 4. At the same time, the limiting tooth plate 10 disengages from the rack top block 12. Under the elastic force of the return spring 15, the telescopic rod 14 extends, pushing the rack top block 12 upward, thereby lifting the molding box 3 to a certain height, making it convenient for the operator to directly remove the molding box 3.

Claims

1. An easily replaceable aluminum alloy extrusion die, including a base (1), characterized in that: The upper end of the base (1) is fixedly connected to a lower mold (2). A molding box (3) is provided on the inner side of the lower mold (2). An installation groove (5) is opened inside the lower mold (2). A slot (4) is symmetrically opened on both sides of the molding box (3). A first sealing cavity (6) is symmetrically opened on both sides of the lower mold (2). A movable block (71) is slidably connected inside the two first sealing cavities (6). A first alloy piston (73) is fixedly connected to one end of the outer side of each movable block (71). A limiting block (72) is fixedly connected to the side away from the first alloy piston (73). The inner side of the limiting block (72) passes through the mounting groove (5) and is connected to the inner side of the groove (4). Two air inlets (74) are opened on the outer side of the two first sealing cavities (6). Pipe joints (75) are fixedly connected to both sides of the lower mold (2). The inner side of the pipe joint (75) is connected to the air inlet (74). Limiting blocks (76) are symmetrically fixedly connected to the upper and lower ends inside the first sealing cavity (6).

2. The easily replaceable aluminum alloy extrusion die according to claim 1, characterized in that: The bottom of the first sealing cavity (6) is provided with an air guide channel (8), and the bottom of the air guide channel (8) is provided with a second sealing cavity (9). The interior of the second sealing cavity (9) is slidably connected with a limiting tooth plate (10).

3. The easily replaceable aluminum alloy extrusion die according to claim 2, characterized in that: The inner side of the limiting toothed plate (10) is fixedly connected to a second alloy piston (11). Two rectangular grooves (13) are symmetrically opened on both sides of the bottom of the mounting groove (5). The rectangular grooves (13) are connected to the second sealing cavity (9). The upper end of the rectangular grooves (13) is provided with a rack top block (12).

4. The easily replaceable aluminum alloy extrusion die according to claim 3, characterized in that: When the limiting tooth plate (10) moves closer to the rack top block (12), it engages with the side of the rack top block (12), and a telescopic rod (14) is fixedly connected to the bottom of the rack top block (12).

5. The easily replaceable aluminum alloy extrusion die according to claim 4, characterized in that: The bottom of the telescopic rod (14) is fixedly connected to the bottom of the rectangular groove (13), and a return spring (15) is provided on the outside of the telescopic rod (14). The upper end of the return spring (15) is fixedly connected to the bottom of the rack top block (12).

6. The easily replaceable aluminum alloy extrusion die according to claim 1, characterized in that: The molding box (3) is inserted into the mounting groove (5), and the outside of the pipe joint (75) is connected to the external air pump.

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