CN115106397B - Split-flow die for aluminum alloy extrusion molding and working method thereof - Google Patents
Split-flow die for aluminum alloy extrusion molding and working method thereof Download PDFInfo
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- CN115106397B CN115106397B CN202211023730.4A CN202211023730A CN115106397B CN 115106397 B CN115106397 B CN 115106397B CN 202211023730 A CN202211023730 A CN 202211023730A CN 115106397 B CN115106397 B CN 115106397B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/21—Presses specially adapted for extruding metal
- B21C23/211—Press driving devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a split-flow die for aluminum alloy extrusion molding and a working method thereof, comprising a bracket, wherein a plurality of elastic telescopic rods are arranged on the bracket, and lower dies are arranged at the upper ends of the plurality of elastic telescopic rods; the invention also discloses a working method of the split-flow die for aluminum alloy extrusion molding, which comprises the following steps: s1, extruding, namely placing an aluminum alloy material into a cavity of a lower die, driving an upper die to move downwards to be attached to the lower die through a power mechanism, and enabling the upper die to abut against the lower die and continuously move downwards along with driving of the power mechanism, wherein at the moment, a first top wheel and a second top wheel abut against the bottom of the lower die. According to the invention, the first top wheel can be used for extruding the lower die in a reciprocating and annular mode, so that the die splitting effect is greatly improved, meanwhile, the lower die can be stably supported, and meanwhile, when the first top wheel moves downwards, the second top wheel can be used for supporting the lower die and extruding the lower die, so that the die splitting effect is improved again.
Description
Technical Field
The invention relates to the technical field of dies, in particular to a split die for aluminum alloy extrusion molding and a working method thereof.
Background
Extrusion molding is a common industrial processing technology and is commonly used for processing products such as radiator profiles, aluminum/titanium pipes, building aluminum profiles, tool special-shaped aluminum products and the like. In extrusion die production, the pipe is divided into a seamed pipe and a seamless pipe, wherein the seamed pipe is produced by adopting a planar split-flow extrusion die, and the pressure-bearing and pressure-resisting properties of the seamed pipe are poor due to the existence of welding seams. The existing aluminum alloy split-flow extrusion die is matched with an upper die and a lower die mostly, and forms a product in a forced extrusion mode through external force, but the aluminum alloy split-flow extrusion die does not have a guiding function during extrusion, the extrusion stress area is relatively dispersed, the extrusion forming speed is low, and the forming efficiency is low.
The prior art discloses a cantilever type aluminum alloy split-flow extrusion die with the application number of CN201910428684.8, and particularly relates to an extrusion die with a split-flow guiding function for accelerating the pressurized split-flow speed of an aluminum alloy material in a lower die, so that the problems that the existing aluminum alloy extrusion die naturally splits flow through single extrusion, has no guiding function and is low in split-flow speed are solved. The top end of the upright post is fixedly connected with a top plate, a cantilever provided with an upper die is arranged in front of the upright post, two sides of the rear part of the cantilever are respectively penetrated on a guide rod, the upper end and the lower end of the guide rod are respectively fixed on the top plate and a supporting plate fixed on the lower part of the upright post through a reinforcing rib, and the lower die is fixed on the lower surface of the cantilever; the cantilever rear portion central authorities are connected on being used for driving its extrusion subassembly that reciprocates, and the lower mould is fixed on the workstation, and the workstation four corners is fixed in the telescopic link top of cover in sleeve upper portion, and the sleeve lower extreme is fixed on the bottom plate, and is provided with the gyro wheel subassembly that promotes the material reposition of redundant personnel efficiency in the lower mould in one side of bottom plate.
The prior art has the following two defects:
1. the aluminum alloy material in the die is extruded by utilizing a single top wheel, and the top wheel can only extrude in one direction, so that the aluminum alloy material in the die cannot be uniformly pressed;
2. the telescopic link is clearance fit with the sleeve, but does not design specific inner structure, and the diaphragm is after receiving the pressure that the mould applyed, can't guarantee the bearing effect to the top wheel to can't guarantee the extrusion effect of top wheel to the workstation, and then can't guarantee the extrusion to the inside aluminum alloy material of lower mould.
Disclosure of Invention
The invention aims to solve the technical problems and provides a split-flow die for aluminum alloy extrusion molding and a working method thereof.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides an aluminum alloy extrusion is with reposition of redundant personnel mould, includes the support, install a plurality of elastic telescopic links on the support, a plurality of the lower mould is installed to the upper end of elastic telescopic link, the top of lower mould is equipped with the mould, be equipped with the cross plate between support and the lower mould, fixedly connected with four first locating pieces and four second locating pieces on the cross plate, rotationally be connected with reciprocating screw on the first locating piece, reciprocating screw runs through the second locating piece and rotates rather than being connected with the reciprocating screw, four first bevel gears are all installed to reciprocating screw opposite end, the cross plate middle part runs through and is equipped with the dwang that rotates to be connected, the upper end fixedly connected with of dwang and four first bevel gears engaged with second bevel gears, sliding connection has four sliders on the cross plate, four reciprocating screw runs through the slider of homonymy and is connected with its cooperation, rotationally be connected with first top wheel on the slider, install drive gear on the first top wheel, install the tooth on the cross plate, the drive gear runs through with the rectangle carrier, be equipped with the rectangle collar and rotate the rectangle collar, the rectangle collar is connected with the rectangle collar, the rectangle collar is connected with on the rectangle collar, the rectangle collar is connected with the rectangle collar, and the rotation collar is connected with the rectangle collar.
Preferably, a guide groove is formed in the upper end of the cross plate, and the first top wheel is located in the guide groove.
Preferably, the driving mechanism comprises a mounting plate arranged at the bottom of the bracket, a motor is arranged on the mounting plate, a first transmission rod is arranged at the output end of the motor, a second transmission rod is rotatably connected on the mounting plate, driving wheels are arranged on the first transmission rod and the second transmission rod, two driving wheels are connected through a belt, a third bevel gear is arranged on the rectangular pipe and the first transmission rod, the two third bevel gears are meshed, and a propping mechanism for driving the rectangular rod to move up and down is arranged on the second transmission rod.
Preferably, the pushing mechanism comprises a circular plate coaxial with the second transmission rod, guide ring grooves are formed in two sides of the circular plate, a U-shaped block is rotationally connected to the bottom of the rectangular rod, a driven block is fixedly connected to the inner wall of the U-shaped block, the circular plate is located in the U-shaped block, and the two driven blocks are located in the guide ring grooves on the same side respectively.
Preferably, the stop gear is including fixing the pole setting on the support, fixedly connected with locking piece in the pole setting, sheathed tube outer wall is equipped with annular distribution's roll over the groove, the upper end bottom inner wall in roll over the groove, the top is all rotated and is installed the guide block in the lower extreme, the second torsional spring is installed with roll over the groove inner wall to the guide block.
Preferably, the auxiliary stay reposition of redundant personnel mechanism is including fixing first mounting bracket and the second mounting bracket in ring upper end, install the direction spacing wheel on the first mounting bracket, install driven gear on the second mounting bracket, the meshing has the second rack board that offsets with the direction spacing wheel on the driven gear, install L type rack board on the lantern ring, L type rack board and driven gear mesh mutually, the upper end fixedly connected with rectangle post of second rack board, the both sides of rectangle post are rotated and are connected with diagonal brace, install the second top wheel on the diagonal brace, the upper end fixedly connected with fixed block of rectangle post, fixedly connected with spring between fixed block and the two diagonal brace.
Preferably, four rectangular columns are distributed in a staggered manner with the cross plate.
The invention also discloses a working method of the split-flow die for aluminum alloy extrusion molding, which comprises the following steps:
s1, extruding, namely placing an aluminum alloy material into a cavity of a lower die, driving an upper die to move downwards to be attached to the lower die through a power mechanism, and enabling the upper die to abut against the lower die and continuously move downwards along with the driving of the power mechanism, wherein at the moment, a first top wheel and a second top wheel abut against the bottom of the lower die;
s2, splitting, wherein a motor works to drive a first transmission rod and two third bevel gears to rotate, so that rectangular pipes, rectangular rods, rotating rods and second bevel gears are realized, the second bevel gears rotate to drive four first bevel gears to rotate, so that four reciprocating screw rods rotate, the sliding blocks cannot rotate under the limit of a cross plate, the reciprocating screw rods rotate to realize the reciprocating movement of the sliding blocks, a first top wheel and the transmission gears, the transmission gears roll on the first rack plate to drive the first top wheel to rotate, the bottom of a lower die is extruded through the rolling of the first top wheel, the lower die is extruded, the splitting effect of the die is realized, the second top wheel supports the lower die in the downward moving process of the first top wheel, so that the lower die is tightly attached to the upper die, and meanwhile, the second top wheel rolls and extrudes at the bottom of the lower die, so that the splitting effect of the die is realized;
s3, rotating, wherein the sleeve downwards moves to drive the folding groove to move, namely the folding groove and the locking piece relatively slide, the locking piece is propped against the guide block and drives the guide block to rotate when the sleeve downwards moves until the locking piece is separated from the guide block, resetting of the guide block is realized under the action of the second torsion spring, when the driven piece is separated from the concave part of the guide ring groove, the cross plate and the sleeve are driven to upwards move, namely the locking piece downwards moves, the locking piece cannot return in the original way under the action of the guide block, namely the locking piece moves in a V shape in the folding groove and is finally positioned at the same position at the bottom of the folding groove, so that the sleeve, the cross plate and the first top wheel rotate, the position of the first top wheel propped against the lower die is changed, the supporting force of the corresponding second top wheel to the lower die is reduced, and the first top wheel rolls to squeeze different positions at the bottom of the lower die again, so that the shunting effect of the die is greatly improved;
s4, resetting, when the cross plate and the sleeve rotate, the second top wheel pair lower die is propped against and cannot rotate due to friction force, the first torsion spring generates torsion, when the supporting force of the second top wheel pair lower die is reduced, the sleeve ring can rotate under the torsion force of the first torsion spring, and finally the rectangular column keeps the original position with the cross plate.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the first top wheel can carry out reciprocating multi-directional extrusion on the lower die in an annular form, so that the die splitting effect is greatly improved, meanwhile, the lower die can be stably supported, and meanwhile, the second top wheel can support the lower die and extrude the lower die when the first top wheel moves downwards, so that the die splitting effect is improved again.
Drawings
FIG. 1 is a schematic diagram of a split-flow die for extrusion molding of aluminum alloy according to the present invention;
FIG. 2 is a schematic view of a circular plate in a split-flow die for extrusion molding of aluminum alloy according to the present invention;
FIG. 3 is a schematic view of the upper end of a rectangular column in a split-flow die for extrusion molding of aluminum alloy according to the present invention;
FIG. 4 is a side view of a circular plate in a split-flow die for extrusion molding of aluminum alloy according to the present invention;
FIG. 5 is a schematic view of a split-flow die for extrusion molding of aluminum alloy in a folded groove;
fig. 6 is a top view showing the distribution of cross plates and rectangular columns in a split-flow die for extrusion molding of aluminum alloy according to the present invention.
In the figure: 1 support, 2 lower mould, 3 upper mould, 4 elastic telescopic rod, 5 cross plate, 6 first locating block, 7 second locating block, 8 first bevel gear, 9 reciprocating screw rod, 10 second bevel gear, 11 slider, 12 rack plate, 13 first top wheel, 14 drive gear, 15 guide slot, 16 ring, 17 rectangular column, 18 first mounting frame, 19 guide limit wheel, 20 second rack plate, 21 second mounting frame, 22 driven gear, 23L rack plate, 24 lantern ring, 25 folding slot, 26 pole setting, 27 locking block, 28 rotating rod, 29 rectangular rod, 30 rectangular tube, 31 mounting plate, 32 motor, 33 belt, 34 driving wheel, 35 third bevel gear, 36U type block, 37 first driving rod, 38 second driving rod, 39 round plate, 40 guide block, 41 guide block, 42 guide ring groove, 43 diagonal brace, 44 second top wheel, 45 fixed block, 46 spring, and sleeve 47.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-6, a split-type die for extrusion molding of aluminum alloy comprises a bracket 1, wherein a plurality of elastic telescopic rods 4 are arranged on the bracket 1, each elastic telescopic rod 4 is composed of a first guide pipe and a second guide pipe, the second guide pipe is positioned in the first guide pipe and is arranged in a sliding manner, a reset spring is fixedly connected between the bottom of the second guide pipe and the inner bottom of the first guide pipe, and the reset spring is arranged so as to reset a lower die 2; the lower mould 2 is installed to the upper end of a plurality of elastic telescopic links 4, and the top of lower mould 2 is equipped with mould 3, and mould 3 passes through power unit drive, and power unit can be driving motor and lead screw cooperation.
A cross plate 5 is arranged between the bracket 1 and the lower die 2, four first positioning blocks 6 and four second positioning blocks 7 are fixedly connected to the cross plate 5, and the four second positioning blocks 7 are arranged close to each other; the first positioning block 6 is rotationally connected with a reciprocating screw rod 9, the reciprocating screw rod 9 penetrates through the second positioning block 7 and is rotationally connected with the second positioning block, first bevel gears 8 are respectively installed at opposite ends of the four reciprocating screw rods 9, a rotating rod 28 which is rotationally connected with the middle of the cross plate 5 is penetrated through, the upper end of the rotating rod 28 is fixedly connected with a second bevel gear 10 which is meshed with the four first bevel gears 8, the cross plate 5 is slidingly connected with four sliding blocks 11, the four reciprocating screw rods 9 penetrate through the sliding blocks 11 on the same side and are cooperatively connected with the sliding blocks, the sliding blocks 11 are rotationally connected with first top wheels 13, guide grooves 15 are formed in the upper ends of the cross plate 5, the first top wheels 13 are located in the guide grooves 15, transmission gears 14 are coaxially installed on the first top wheels 13, toothed plates 12 are installed on the cross plate 5, and the transmission gears 14 are meshed with the toothed plates 12.
The bottom fixedly connected with sleeve pipe 47 of cross board 5 is equipped with two stop gear to sleeve pipe 47 on the support 1, and stop gear is including fixing the pole setting 26 on support 1, fixedly connected with locking piece 27 on the pole setting 26, and the outer wall of sleeve pipe 47 is equipped with annular distributed's roll over groove 25, and the guide block 41 is installed in the upper end bottom inner wall of roll over groove 25, the top is all rotated to the lower extreme in, and the second torsional spring is installed with roll over groove 25 inner wall to guide block 41, as shown in fig. 5.
The dwang 28 runs through sleeve 47 setting, and dwang 28 fixedly connected with rectangular bar 29, the bottom rotation of support 1 is connected with rectangular pipe 30, rectangular bar 29 runs through rectangular pipe 30 and rather than sliding connection, the actuating mechanism of drive rectangular bar 29 activity is installed to support 1 bottom, actuating mechanism is including installing the mounting panel 31 in support 1 bottom, install motor 32 on the mounting panel 31, first transfer line 37 is installed to the output of motor 32, rotate on the mounting panel 31 and be connected with second transfer line 38, all install drive wheel 34 on first transfer line 37 and the second transfer line 38, two drive wheels 34 are connected through belt 33, all install third bevel gear 35 on rectangular pipe 30 and the first transfer line 37, two third bevel gears 35 mesh.
The second transmission rod 38 is provided with a propping mechanism for driving the rectangular rod 29 to move up and down, the propping mechanism comprises a circular plate 39 coaxial with the second transmission rod 38, guide ring grooves 42 are arranged on two sides of the circular plate 39, the bottom of the rectangular rod 29 is rotationally connected with a U-shaped block 36, the inner wall of the U-shaped block 36 is fixedly connected with a driven block 40, the circular plate 39 is positioned in the U-shaped block 36, the two driven blocks 40 are respectively positioned in the guide ring grooves 42 on the same side, the guide ring grooves 42 are partially inwards arranged, and inwards sunk parts are semicircular as shown in fig. 4.
The bracket 1 is provided with a circular ring 16 which is rotationally connected with the bracket, a sleeve 47 is rotationally connected with a sleeve 24, a first torsion spring is arranged between the sleeve 24 and the sleeve 47, four auxiliary support and shunt mechanisms are arranged on the circular ring 16, each auxiliary support and shunt mechanism comprises a first mounting frame 18 and a second mounting frame 21 which are fixed at the upper end of the circular ring 16, a guide limit wheel 19 is arranged on the first mounting frame 18, a driven gear 22 is arranged on the second mounting frame 21, a second rack plate 20 which is abutted against the guide limit wheel 19 is meshed on the driven gear 22, an L-shaped rack plate 23 is arranged on the sleeve 24, the L-shaped rack plate 23 is meshed with the driven gear 22, a rectangular column 17 is fixedly connected with the upper end of the second rack plate 20, inclined support rods 43 are rotationally connected with the two sides of the rectangular column 17, the angle between the inclined support rods 43 and the rectangular column 17 is 60 DEG at most, and the inclined support rods 43 can be supported and limited by a mounting bolt on the rectangular column 17; the second top wheel 44 is arranged on the diagonal brace 43, the upper end of the rectangular column 17 is fixedly connected with a fixed block 45, springs 46 are fixedly connected between the fixed block 45 and the two diagonal braces 43, and the four rectangular columns 17 and the cross plate 5 are distributed in a staggered mode.
The invention also discloses a working method of the split-flow die for aluminum alloy extrusion molding, which comprises the following steps:
s1, extruding, namely placing an aluminum alloy material into a cavity of a lower die 2, driving an upper die 3 to move downwards to be attached to the lower die 2 through a power mechanism, and enabling the upper die 3 to abut against the lower die 2 and continuously move downwards along with the driving of the power mechanism, wherein at the moment, a first top wheel 13 and a second top wheel 44 abut against the bottom of the lower die 2;
s2, splitting, the motor 32 works to drive the first transmission rod 37 and the two third bevel gears 35 to rotate, so that the rectangular tube 30, the rectangular rod 29, the rotating rod 28 and the second bevel gears 10 are rotated, the second bevel gears 10 rotate to drive the four first bevel gears 8 to rotate, so that the four reciprocating screw rods 9 rotate, the sliding block 11 cannot rotate under the limit of the cross plate 5, the reciprocating screw rods 9 rotate to enable the sliding block 11, the first top wheel 13 and the transmission gears 14 to reciprocate, the transmission gears 14 roll on the first rack plates 12 to drive the first top wheel 13 to rotate, the bottom of the lower die 2 is extruded through the rolling of the first top wheel 13, the lower die 2 is extruded, the splitting effect of the die is achieved, the second top wheel 44 supports the lower die 2 in the process of moving the first top wheel 13 downwards, the lower die 2 is tightly attached to the upper die 3, and meanwhile, the second top wheel 44 rolls and extrudes at the bottom of the lower die 2, and the splitting effect of the die is achieved;
s3, rotating, the sleeve 47 moves downwards to drive the folding groove 25 to move, namely the folding groove 25 and the locking piece 27 slide relatively, the locking piece 27 abuts against the guide block 41 and drives the guide block 41 to rotate when the sleeve 47 moves downwards until the locking piece 27 is separated from the guide block 41, resetting of the guide block 41 is achieved under the action of the second torsion spring, when the driven piece 40 is separated from the concave part of the guide ring groove 42, the cross plate 5 and the sleeve 47 are driven to move upwards, namely the locking piece 27 moves downwards, the locking piece 27 does not return in the original way under the action of the guide block 41, namely the locking piece 27 moves in a V shape in the folding groove 25 and is finally located at the same position at the bottom of the folding groove 25, so that the sleeve 47, the cross plate 5 and the first top wheel 13 rotate, the position of the first top wheel 13 abutting against the lower die 2 is changed, the supporting force of the corresponding second top wheel 44 on the lower die 2 is reduced, and the first top wheel 13 rolls again to press different positions at the bottom of the lower die 2, so that the flow dividing effect of the die is greatly improved;
s4, when the cross plate 5 and the sleeve 47 are reset to rotate, the second top wheel 44 props against the lower die 2 and cannot rotate due to friction force, the first torsion spring generates torsion force, when the supporting force of the second top wheel 44 to the lower die 2 is reduced, the collar 24 can rotate under the torsion force of the first torsion spring, and finally the rectangular column 17 keeps the original position with the cross plate 5.
When the extrusion molding of aluminum alloy is carried out, firstly, an aluminum alloy material is placed in a cavity of a lower die 2, then an upper die 3 is driven to move downwards to be attached to the lower die 2 by a power mechanism, the upper die 3 is propped against the lower die 2 and continuously moves downwards along with the driving of the power mechanism, at the moment, a first top wheel 13 and a second top wheel 44 are propped against the bottom of the lower die 2, and then a motor 32 is started;
the motor 32 works to drive the first transmission rod 37 and the two third bevel gears 35 to rotate, so that the rectangular tube 30, the rectangular rod 29, the rotating rod 28 and the second bevel gears 10 are realized, the second bevel gears 10 rotate to drive the four first bevel gears 8 to rotate, so that the four reciprocating screw rods 9 rotate, and as the sliding block 11 cannot rotate under the limit of the cross plate 5, the reciprocating screw rods 9 rotate to realize the reciprocating movement of the sliding block 11, the first top wheel 13 and the transmission gear 14, the transmission gear 14 rolls on the first rack plate 12 to drive the first top wheel 13 to rotate, the bottom of the lower die 2 is extruded through the rolling of the first top wheel 13, the effect of extruding the lower die 2 is further realized, and the flow dividing effect of the die is realized;
the first transmission rod 37 rotates to drive the transmission wheel 34, the belt 33 and the second transmission rod 38 to rotate, the second transmission rod 38 rotates to drive the circular plate 39 and the guide ring groove 42 to rotate, the driven block 40 slides in the guide ring groove 42, when the driven block 40 moves to the inward sinking position of the guide ring groove 42, the U-shaped block 36, the rectangular rod 29, the rotating rod 28, the cross plate 5 and the sleeve 47 can be driven to move downwards under the limit of the guide ring groove 42, namely the first top wheel 13 does not prop against the bottom of the lower die 2, the sleeve 47 moves downwards to drive the L-shaped rack plate 23 to move downwards, the L-shaped rack plate 23 moves downwards to drive the driven gear 22 to rotate, the second rack plate 20 and the rectangular column 17 can move upwards under the transmission of the driven gear 22, and when the rectangular column 17 moves upwards, the two inclined support rods 43 rotate oppositely, the second top wheel 44 rolls on the bottom of the lower die 2 and supports the lower die 2, namely the second top wheel 44 supports the lower die 2 in the process of moving downwards, so that the first top wheel 13 does not prop against the bottom of the lower die 2, and the second top wheel 44 rolls tightly against the upper die 2, and the lower die 44 rolls tightly against the bottom of the lower die 2, and the lower die 44 simultaneously, so that is tightly rolls and rolls is tightly against the lower die 2 is tightly and is pressed;
the sleeve 47 moves downwards to drive the folding groove 25 to move, namely the folding groove 25 and the locking piece 27 slide relatively, the locking piece 27 abuts against the guide block 41 and drives the guide block 41 to rotate when the sleeve 47 moves downwards until the locking piece 27 is separated from the guide block 41, the guide block 41 is reset under the action of the second torsion spring, when the driven piece 40 is separated from the concave part of the guide ring groove 42, the cross plate 5 and the sleeve 47 are driven to move upwards, namely the locking piece 27 moves downwards, the locking piece 27 does not return in the original way under the action of the guide block 41, namely the locking piece 27 moves in a V shape in the folding groove 25 and finally is positioned at the same position of the bottom of the folding groove 25, so that the sleeve 47, the cross plate 5 and the first top wheel 13 rotate, the positions of the first top wheel 13 abutting against the lower die 2 are changed, the supporting force of the corresponding second top wheel 44 on the lower die 2 is reduced, and the first top wheel 13 rolls again to squeeze the different positions of the bottom of the lower die 2, and thus the flow dividing effect of the die is greatly improved;
when the cross plate 5 and the sleeve 47 rotate, the second top wheel 44 resists the lower die 2 and cannot rotate due to friction force, so that the first torsion spring generates torsion force, when the supporting force of the second top wheel 44 to the lower die 2 is reduced, the rotation of the sleeve ring 24 can be realized under the torsion force of the first torsion spring, and finally the rectangular column 17 keeps the original position with the cross plate 5;
as described above, the first top wheel 13 can reciprocate the lower die 2 and extrude the lower die 2 in a ring shape, so that the die split effect is greatly improved, and meanwhile, the lower die 2 can be stably supported, and meanwhile, the second top wheel 44 can support the lower die 2 and extrude the lower die 2 when the first top wheel 13 moves down, so that the die split effect is improved again.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. The utility model provides a shunting mould for aluminum alloy extrusion, includes support (1), its characterized in that, install a plurality of elasticity telescopic links (4) on support (1), a plurality of lower mould (2) are installed to the upper end of elasticity telescopic links (4), the top of lower mould (2) is equipped with mould (3), be equipped with cross plate (5) between support (1) and lower mould (2), four first locating pieces (6) and four second locating pieces (7) of fixedly connected with on cross plate (5), be connected with reciprocating lead screw (9) on first locating piece (6) rotation, reciprocating lead screw (9) run through second locating piece (7) and rather than rotate to be connected, four reciprocating lead screw (9) opposite ends all install first bevel gear (8), cross plate (5) middle part runs through and is equipped with rotation connected's dwang (28), the upper end fixedly connected with four first bevel gear (8) engaged with second bevel gear (10), cross plate (5) are connected with four first bevel gear (8) and four on the slider (11) are connected with, one and four slider (13) are connected with on the slider (13) are connected with one and are connected with the slider (13) coaxially, the novel double-sided rack is characterized in that a rack plate (12) is mounted on the cross plate (5), the transmission gear (14) is meshed with the rack plate (12), a sleeve (47) is fixedly connected to the bottom of the cross plate (5), two limiting mechanisms limiting the sleeve (47) are arranged on the support (1), a rotating rod (28) penetrates through the sleeve (47), a rectangular rod (29) is fixedly connected to the rotating rod (28), a rectangular pipe (30) is rotatably connected to the bottom of the support (1), the rectangular rod (29) penetrates through the rectangular pipe (30) and is slidably connected with the rectangular pipe, a driving mechanism for driving the rectangular rod (29) to move is mounted at the bottom of the support (1), a circular ring (16) rotatably connected with the circular ring (16) is arranged on the support (1), a first torsion spring is mounted between the sleeve (24) and the sleeve (47), and four auxiliary supporting and distributing mechanisms are mounted on the circular ring (16);
the driving mechanism comprises a mounting plate (31) arranged at the bottom of the bracket (1), a motor (32) is arranged on the mounting plate (31), a first transmission rod (37) is arranged at the output end of the motor (32), a second transmission rod (38) is rotatably connected to the mounting plate (31), driving wheels (34) are arranged on the first transmission rod (37) and the second transmission rod (38), two driving wheels (34) are connected through a belt (33), a third bevel gear (35) is arranged on each rectangular pipe (30) and each first transmission rod (37), the two third bevel gears (35) are meshed, and a pushing mechanism for driving the rectangular rod (29) to move up and down is arranged on the second transmission rod (38);
the pushing mechanism comprises a circular plate (39) coaxial with the second transmission rod (38), guide ring grooves (42) are formed in two sides of the circular plate (39), a U-shaped block (36) is rotatably connected to the bottom of the rectangular rod (29), driven blocks (40) are fixedly connected to the inner wall of the U-shaped block (36), the circular plate (39) is located in the U-shaped block (36), and the two driven blocks (40) are located in the guide ring grooves (42) on the same side respectively;
the limiting mechanism comprises a vertical rod (26) fixed on the support (1), a locking block (27) is fixedly connected to the vertical rod (26), an annular folding groove (25) is formed in the outer wall of the sleeve (47), guide blocks (41) are rotatably arranged on the inner wall of the bottom of the upper end and the inner top of the lower end of the folding groove (25), and a second torsion spring is arranged on the guide blocks (41) and the inner wall of the folding groove (25);
the auxiliary stay reposition of redundant personnel mechanism is including fixing first mounting bracket (18) and second mounting bracket (21) in ring (16) upper end, install direction spacing wheel (19) on first mounting bracket (18), install driven gear (22) on second mounting bracket (21), meshing has second rack board (20) that offsets with direction spacing wheel (19) on driven gear (22), install L type rack board (23) on lantern ring (24), L type rack board (23) and driven gear (22) mesh mutually, the upper end fixedly connected with rectangle post (17) of second rack board (20), both sides rotation of rectangle post (17) are connected with diagonal brace (43), install second top wheel (44) on diagonal brace (43), the upper end fixedly connected with fixed block (45) of rectangle post (17), fixedly connected with spring (46) between fixed block (45) and two diagonal brace (43).
2. The split die for aluminum alloy extrusion molding according to claim 1, wherein a guide groove (15) is formed at the upper end of the cross plate (5), and the first top wheel (13) is located in the guide groove (15).
3. A split die for extrusion of aluminum alloy according to claim 1, wherein four of the rectangular columns (17) are staggered with respect to the cross plate (5).
4. A method of operating a split die for extrusion of aluminum alloys according to any of claims 1-3, comprising the steps of:
s1, extruding, namely placing an aluminum alloy material into a cavity of a lower die (2), driving an upper die (3) to move downwards to be attached to the lower die (2) through a power mechanism, and enabling the upper die (3) to abut against the lower die (2) and move downwards continuously along with the driving of the power mechanism, wherein a first top wheel (13) and a second top wheel (44) abut against the bottom of the lower die (2);
s2, splitting, a motor (32) works to drive a first transmission rod (37) and two third bevel gears (35) to rotate, so that a rectangular pipe (30), a rectangular rod (29), a rotating rod (28) and a second bevel gear (10) are realized, the second bevel gear (10) rotates to drive four first bevel gears (8) to rotate, and therefore four reciprocating screw rods (9) rotate, as a sliding block (11) cannot rotate under the limit of a cross plate (5), the reciprocating screw rods (9) rotate to realize the reciprocating movement of the sliding block (11), a first top wheel (13) and a transmission gear (14), the transmission gear (14) rolls on a first toothed plate (12) to drive the first top wheel (13) to rotate, the bottom of a lower die (2) is extruded through the rolling of the first top wheel (13), the splitting effect of the die is realized, and in the process of downward movement of the first top wheel (13), the second top wheel (44) can support the lower die (2) to ensure that the lower die (2) is tightly attached to the upper die (3), and the bottom of the second die (44) is extruded at the same time;
s3, rotating, the sleeve (47) moves downwards to drive the folding groove (25) to move, namely the folding groove (25) and the locking block (27) slide relatively, when the sleeve (47) moves downwards, the locking block (27) abuts against the guide block (41) and drives the guide block (41) to rotate until the locking block (27) is separated from the guide block (41), resetting of the guide block (41) is achieved under the action of the second torsion spring, when the driven block (40) is separated from the concave part of the guide ring groove (42), namely the cross plate (5) and the sleeve (47) are driven to move upwards, namely the locking block (27) moves downwards, the locking block (27) does not return in a primary way under the action of the guide block (41), namely the locking block (27) moves in a V shape in the folding groove (25), and is finally positioned at the same bottom of the folding groove (25), so that the sleeve (47), the cross plate (5) and the first top wheel (13) rotate, the position of the first top wheel (13) abuts against the lower die (2) is changed, and finally the first top wheel (13) abuts against the bottom die (2) and the corresponding lower die (44) is greatly reduced, and the rolling force of the lower die (2) is greatly reduced;
s4, resetting, when the cross plate (5) and the sleeve (47) rotate, the second top wheel (44) can not rotate against the lower die (2) due to friction force, so that the first torsion spring generates torsion, when the supporting force of the second top wheel (44) on the lower die (2) is reduced, the rotation of the sleeve ring (24) can be realized under the torsion force of the first torsion spring, and finally the rectangular column (17) keeps the original position with the cross plate (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211023730.4A CN115106397B (en) | 2022-08-25 | 2022-08-25 | Split-flow die for aluminum alloy extrusion molding and working method thereof |
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| CN202211023730.4A CN115106397B (en) | 2022-08-25 | 2022-08-25 | Split-flow die for aluminum alloy extrusion molding and working method thereof |
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| CN115106397B true CN115106397B (en) | 2023-08-29 |
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| CN2825147Y (en) * | 2005-08-30 | 2006-10-11 | 天津锐新电子热传技术有限公司 | Extrusion forming mould for aluminium alloy shell of frequency hopping radio |
| CN110125205A (en) * | 2019-05-22 | 2019-08-16 | 湖南科技大学 | A kind of cantilevered aluminium alloy Splicing Mechanism mold |
| CN211679351U (en) * | 2020-01-13 | 2020-10-16 | 辽宁方圆实业有限公司 | Shunting die structure of bullet train body hook plate profile extrusion die |
| CN111822537A (en) * | 2020-07-28 | 2020-10-27 | 刘占国 | Shunting type die for aluminum alloy extrusion forming and working method thereof |
| CN212329290U (en) * | 2020-04-30 | 2021-01-12 | 佛山长铭铝业有限公司 | Novel aluminium alloy extrusion reposition of redundant personnel mould |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2825147Y (en) * | 2005-08-30 | 2006-10-11 | 天津锐新电子热传技术有限公司 | Extrusion forming mould for aluminium alloy shell of frequency hopping radio |
| CN110125205A (en) * | 2019-05-22 | 2019-08-16 | 湖南科技大学 | A kind of cantilevered aluminium alloy Splicing Mechanism mold |
| CN211679351U (en) * | 2020-01-13 | 2020-10-16 | 辽宁方圆实业有限公司 | Shunting die structure of bullet train body hook plate profile extrusion die |
| CN212329290U (en) * | 2020-04-30 | 2021-01-12 | 佛山长铭铝业有限公司 | Novel aluminium alloy extrusion reposition of redundant personnel mould |
| CN111822537A (en) * | 2020-07-28 | 2020-10-27 | 刘占国 | Shunting type die for aluminum alloy extrusion forming and working method thereof |
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