Extrusion die for aluminum alloy multi-union micro-channel flat tube

Abstract

The utility model relates to the technical field of flat pipe forming, in particular to an extrusion die for an aluminum alloy multi-connected micro-channel flat pipe, which comprises an upper die and a lower die, a forming opening is formed in the surface of the upper die, and a die core is inserted in the forming opening; first mounting blocks are symmetrically and fixedly mounted on the surface of the upper die, sliding openings are formed in the surfaces of the first mounting blocks, inserting rods are slidably inserted into the sliding openings and connected with the first mounting blocks through elastic components, one ends of the inserting rods are fixedly sleeved with mounting rings, and clamping plates are symmetrically and fixedly mounted on the surfaces of the mounting rings. Second mounting blocks are symmetrically and fixedly mounted on the surface of the lower die, and penetrating openings are formed in the surfaces of the second mounting blocks. Through cooperation of the inserting rods, the clamping plates and the penetrating openings, the upper die and the lower die can be rapidly assembled and disassembled, the tedious step of using screws and nut fixing pieces is avoided, and the working efficiency of disassembling and assembling the upper die and the lower die is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flat tube forming, in particular to an extrusion die for an aluminum alloy multi-connected microchannel flat tube. Background Art

[0002] Microchannel aluminum flat tube is a thin-walled porous flat tubular material made of refined aluminum rods, through hot extrusion and surface zinc spraying for corrosion protection. The multi-connected microchannel flat tube is a flat tube with multiple channels, which needs to be extruded into shape through an extrusion die during the production process.

[0003] The upper die and the lower die in the existing extrusion die need to be spliced ​​together when in use, and the splicing is generally achieved through screw and nut fixings. The disassembly and assembly steps are relatively cumbersome and take a long time. Utility Model Content

[0004] The purpose of the utility model is to solve the following shortcomings in the prior art: the upper die and the lower die in the existing extrusion die need to be spliced ​​together when in use, and the splicing is generally achieved by screw and nut fixings, and the disassembly and assembly steps are relatively cumbersome and take a long time, and an extrusion die for an aluminum alloy multi-link microchannel flat tube is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An extrusion die for an aluminum alloy multi-link microchannel flat tube comprises an upper die and a lower die, wherein a molding port is provided on the surface of the upper die, a mold core is inserted in the molding port, a welding chamber is provided on the surface of the lower die, a mold cavity is provided on the surface of the welding chamber, and an insert is provided in the welding chamber;

[0007] A first mounting block is symmetrically fixedly installed on the surface of the upper mold, a sliding opening is provided on the surface of the first mounting block, an insertion rod is slidably inserted in the sliding opening, the insertion rod is connected to the first mounting block through an elastic component, a mounting ring is fixedly sleeved on one end of the insertion rod, a clamping plate is symmetrically fixedly installed on the surface of the mounting ring, and a second mounting block is symmetrically fixedly installed on the surface of the lower mold, and a through opening is provided on the surface of the second mounting block for the clamping plate and the insertion rod to pass through.

[0008] Preferably, the elastic component comprises a torsion spring sleeved on an insertion rod, a turntable is fixedly mounted on one end of the insertion rod, and two ends of the torsion spring are respectively fixedly connected to the turntable and the upper mold.

[0009] Preferably, a locking assembly is provided on the upper mold surface, and the locking assembly is used to lock the mold core.

[0010] Preferably, the locking assembly includes two spring rods and two locking blocks fixedly mounted on the ends of the two spring rods, respectively; a mounting plate is symmetrically fixedly mounted on the surface of the upper mold, the two spring rods are fixedly mounted on the two mounting plates, respectively; and locking grooves for inserting the locking blocks are provided on the left and right side walls of the mold core.

[0011] Preferably, the cross section of the locking block is triangular.

[0012] Preferably, a pull rod is fixedly mounted on the upper surface of the locking block, and the surface of the pull rod is provided with anti-slip grooves.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] Through the cooperation between the insertion rod, the clamping plate and the through-hole, the installation and disassembly between the upper mold and the lower mold can be completed quickly, avoiding the tedious steps of using screw and nut fixings, and improving the work efficiency of disassembling and assembling the upper mold and the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the split structure of the front three-dimensional part of an extrusion die for an aluminum alloy multi-connected microchannel flat tube proposed by the utility model;

[0016] Figure 2 for Figure 1 A magnified view of the structure at center;

[0017] Figure 3 for Figure 1 A magnified view of the structure at B in the middle;

[0018] Figure 4 for Figure 1 Enlarged view of the structure at point C in the middle.

[0019] In the figure: 1 upper die, 2 lower die, 3 die core, 4 welding chamber, 5 die cavity, 6 insert, 7 first mounting block, 8 insert rod, 9 clamping plate, 10 second mounting block, 11 through-hole, 12 torsion spring, 13 spring rod, 14 locking block, 15 locking groove, 16 pull rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] The terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present utility model are only for the convenience of description and are not used to limit the scope of application of the present utility model. Changes or adjustments in their relative relationships shall be regarded as the scope of application of the present utility model without substantially changing the technical content.

[0022] Reference Figure 1-Figure 4 An extrusion die for an aluminum alloy multi-link microchannel flat tube comprises an upper die 1 and a lower die 2. The upper die 1 is provided with a forming opening on its surface, a die core 3 is inserted in the forming opening, a welding chamber 4 is provided on its surface, a die cavity 5 is provided on its surface, and an insert 6 is provided in the welding chamber 4;

[0023] A first mounting block 7 is symmetrically fixedly installed on the surface of the upper mold 1, a sliding opening is provided on the surface of the first mounting block 7, an insertion rod 8 is slidably inserted in the sliding opening, the insertion rod 8 is connected to the first mounting block 7 through an elastic component, the elastic component includes a torsion spring 12 sleeved on the insertion rod 8, a turntable is fixedly installed on one end of the insertion rod 8, the two ends of the torsion spring 12 are respectively fixedly connected to the turntable and the upper mold 1, a mounting ring is fixedly sleeved on one end of the insertion rod 8, a clamping plate 9 is symmetrically fixedly installed on the surface of the mounting ring, and a second mounting block 10 is symmetrically fixedly installed on the surface of the lower mold 2, and a through-opening 11 for the clamping plate 9 and the insertion rod 8 to pass through is provided on the surface of the second mounting block 10;

[0024] When it is necessary to fix the upper mold 1 and the lower mold 2 together for use, it is only necessary to align the ends of the two insertion rods 8 with the two through-holes 11 respectively. At this time, the positions of the two card plates 9 fixedly connected to the insertion rods 8 will not correspond to the positions of the through-holes 11 under the elastic potential energy of the torsion springs 12, that is, they will not overlap. If you want to pass the ends of the insertion rods 8 through the two through-holes 11, you need to first turn the turntable to control the rotation of the insertion rods 8 until the plurality of card plates 9 correspond to the positions of the plurality of through-holes 11 respectively. At this time, the upper mold 1 and the lower mold 2 are brought close to each other, and the ends of the two insertion rods 8 are respectively passed through the two through-holes 11 until the upper mold 1 and the lower mold 2 are abutted. At this time, release the turntable, the insertion rods 8 will quickly rotate and reset under the elastic potential energy of the torsion springs 12, and then the plurality of card plates 9 will also quickly rotate and reset, and abut against the surface of the lower mold 2. At this time, since the card plates 9 do not correspond to the positions of the through-holes 11, the upper mold 1 and the lower mold 2 cannot be separated, thereby completing the installation of the upper mold 1 and the lower mold 2;

[0025] When disassembly is required, it is only necessary to control the rotation of the insert rod 8 by turning the turntable until the insert rod 8 rotates with the clamping plate 9 to correspond to the position of the through-hole 11. At this time, the upper mold 1 and the lower mold 2 can be separated. It is convenient and quick, and the installation and disassembly between the upper mold 1 and the lower mold 2 can be completed quickly, avoiding the tedious steps of using screw and nut fixings, and improving the work efficiency of disassembling and assembling the upper mold 1 and the lower mold 2.

[0026] A locking assembly is provided on the surface of the upper mold 1, and the locking assembly is used to lock the mold core 3. The locking assembly includes two spring rods 13 and two locking blocks 14 respectively fixedly mounted on the ends of the two spring rods 13. A mounting plate is symmetrically fixedly mounted on the surface of the upper mold 1, and the two spring rods 13 are respectively fixedly mounted on the two mounting plates. The left and right side walls of the mold core 3 are both provided with locking grooves 15 for inserting the locking blocks 14. A pull rod 16 is fixedly mounted on the upper surface of the locking block 14, and the surface of the pull rod 16 is provided with anti-slip grooves;

[0027] When the material passes through the space formed between the surface of the core 3 and the wall of the molding port, it will be formed into the desired shape. When the core 3 needs to be replaced, it is only necessary to pull the pull rod 16 to control the two spring rods 13 to shrink together until the two locking blocks 14 are respectively moved out of the two locking grooves 15 to release the lock on the core 3, and then remove the core 3, and then push the new core 3 into the molding port until it moves to the two locking grooves 15 corresponding to the positions of the two locking blocks 14 respectively. At this time, release the two pull rods 16, and the two locking blocks 14 will quickly move and reset under the elastic potential energy of the spring rods 13, and insert into the locking grooves 15 corresponding to their own positions, thereby completing the locking of the core 3, which is convenient and quick.

[0028] The cross section of the locking block 14 is triangular. When the mold core 3 is installed and the end of the mold core 3 is aligned with the molding port and inserted, the end faces of the mold core 3 will slide in contact with the inclined surfaces of the two locking blocks 14. Under the action of the inclined surface pressure, the two spring rods 13 will shrink together until the mold core 3 moves to a point where the two locking grooves 15 opened on its surface correspond to the positions of the two locking blocks 14 respectively. When the pressure applied by the mold core 3 to the locking blocks 14 disappears, the locking blocks 14 will quickly move and reset under the elastic potential energy of the spring rods 13, and be inserted into the locking grooves 15 corresponding to their own positions. There is no need to manually control the extension and retraction of the two spring rods 13 when installing the mold core 3, which is more convenient.

[0029] In the present invention, when it is necessary to fix the upper mold 1 and the lower mold 2 together for use, it is only necessary to align the ends of the two insertion rods 8 with the two through-holes 11 respectively. At this time, the positions of the two card plates 9 fixedly connected to the insertion rods 8 will not correspond to the positions of the through-holes 11 under the elastic potential energy of the elastic component, that is, they will not overlap. If you want to pass the ends of the insertion rods 8 through the two through-holes 11, you need to first rotate the turntable to control the rotation of the insertion rods 8 until multiple card plates 9 are rotated to correspond to the positions of multiple through-holes 11 respectively. At this time, the upper mold 1 and the lower mold 2 are brought close to each other, and the ends of the two insertion rods 8 are respectively passed through the two through-holes 11 until the upper mold 1 and the lower mold 2 are abutted. At this time, the turntable is released, and the insertion rods 8 are It will quickly rotate and reset under the elastic potential energy of the elastic component, and then the multiple card plates 9 will also quickly rotate and reset, and abut against the surface of the lower mold 2. At this time, since the card plates 9 do not correspond to the position of the through-hole 11, the upper mold 1 and the lower mold 2 cannot be separated, and then the installation of the upper mold 1 and the lower mold 2 is completed. When disassembly is required, it is only necessary to control the rotation of the turntable until the insert rod 8 rotates with the card plates 9 to correspond to the position of the through-hole 11. At this time, the upper mold 1 and the lower mold 2 can be separated. It is convenient and fast, and the installation and disassembly between the upper mold 1 and the lower mold 2 can be completed quickly, avoiding the tedious steps of using screw and nut fixings, and improving the work efficiency of disassembling and assembling the upper mold 1 and the lower mold 2.

[0030] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An extrusion die for an aluminum alloy multi-linked microchannel flat tube, comprising an upper die (1) and a lower die (2), characterized in that: The upper mold (1) has a molding opening on its surface, a mold core (3) is inserted into the molding opening, the lower mold (2) has a welding chamber (4) on its surface, a mold cavity (5) is formed on its surface, and an insert (6) is arranged in the welding chamber (4); A first mounting block (7) is symmetrically fixedly mounted on the surface of the upper mold (1), a sliding opening is provided on the surface of the first mounting block (7), an insertion rod (8) is slidably inserted in the sliding opening, the insertion rod (8) is connected to the first mounting block (7) through an elastic component, one end of the insertion rod (8) is fixedly sleeved with a mounting ring, a clamping plate (9) is symmetrically fixedly mounted on the surface of the mounting ring, and a second mounting block (10) is symmetrically fixedly mounted on the surface of the lower mold (2), and a through opening (11) is provided on the surface of the second mounting block (10) for the clamping plate (9) and the insertion rod (8) to pass through.

2. The extrusion die of the aluminum alloy multi-connected microchannel flat tube according to claim 1, characterized in that: The elastic component comprises a torsion spring (12) sleeved on an insertion rod (8), a turntable is fixedly mounted on one end of the insertion rod (8), and two ends of the torsion spring (12) are respectively fixedly connected to the turntable and the upper mold (1).

3. The extrusion die of the aluminum alloy multi-connected microchannel flat tube according to claim 1, characterized in that: The surface of the upper mold (1) is provided with a locking component, and the locking component is used to lock the mold core (3).

4. The extrusion die of the aluminum alloy multi-connected microchannel flat tube according to claim 3, characterized in that: The locking assembly comprises two spring rods (13) and two locking blocks (14) respectively fixedly mounted on the ends of the two spring rods (13); a mounting plate is symmetrically fixedly mounted on the surface of the upper mold (1); the two spring rods (13) are respectively fixedly mounted on the two mounting plates; and the left and right side walls of the mold core (3) are both provided with locking grooves (15) for inserting the locking blocks (14).

5. The extrusion die of the aluminum alloy multi-connected microchannel flat tube according to claim 4, characterized in that: The cross section of the locking block (14) is triangular.

6. The extrusion die of the aluminum alloy multi-connected microchannel flat tube according to claim 4, characterized in that: A pull rod (16) is fixedly mounted on the upper surface of the locking block (14), and the surface of the pull rod (16) is provided with anti-slip grooves.

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