CN102228912A

CN102228912A - Extrusion system

Info

Publication number: CN102228912A
Application number: CN2011100565183A
Authority: CN
Inventors: 岳光明; 陈学模; 向晓红
Original assignee: Hefei Smarter Technology Co Ltd
Current assignee: Hefei Smarter Technology Co Ltd
Priority date: 2009-07-08
Filing date: 2009-07-08
Publication date: 2011-11-02

Abstract

The invention relates to an extrusion system. The rack of the extrusion system is provided with two extrusion wheels of which two spindles are parallel with each other; the rotation directions of the extrusion wheels are opposite, and the wheel ring of each extrusion wheel is provided with at least one extrusion race in the circumference direction; the extrusion races are respectively provided with guide bases which are matched with the extrusion races; the guide bases and the extrusion races form extrusion cavities through which blanks pass; a die seat is arranged between the extrusion wheels; the inside of the die seat is provided with a channel through which a cable passes through; holes communicated with the extrusion cavities are symmetrically arranged on two sides of the axial core wire of the die seat in the radial direction; the holes are communicated with the cladding cavity of the die seat; and the outlet of the cladding cavity is arranged at the periphery of a cable outlet end in the channel. After entering into the extrusion cavity, extrusion blanks enter into the cladding cavity through the holes on the die seat; because the holes are symmetrically arranged in the radial direction of the die seat, the extrusion blanks simultaneously enter into the cladding cavity from the upper and lower parts of the die seat, blank runners are shortened, temperature difference is small, the blank flowing through the die seat is abundant, and the yield is increased.

Description

Extrusion system

The present invention is to be on July 8th, 2009 applying date, and application number is 200910144064.8, and denomination of invention is divided an application for the patent of invention of " extruder ".

Technical field

The present invention relates to a kind of extrusion system, is a kind of by the continuously extruded extrusion equipment that makes metal forming specifically.

Background technology

At present, the cable metal oversheath of super-pressure because caliber is big, generally all adopts the metal tape welding fabrication, and seam welding is promptly arranged, and the material crystal grain of this welding method weld is thick, and is very inhomogeneous, influences the electric and mechanical and physical performance of cable.Huge with the continuous aluminium press equipment that aluminium ingot is produced, energy consumption is big, complex structure, involve great expense, and traditional continuously extruded system, it all is the structure of single groove of single-wheel or single-wheel double flute, this structure is simple relatively, because this equipment has only a runner, its extrusion chamber has only a Kong Yuqi to communicate, so the runner of blank in extrusion chamber is long, cause upper and lower temperature difference big, product percent of pass is low, and the structure of single groove of this single-wheel or single-wheel double flute can only be produced the product of little caliber, small bore usually, it is very big to produce big caliber product difficulty, and yield rate is low.

Summary of the invention

The purpose of this invention is to provide a kind of runner weak point, have a narrow range of temperature, can produce the extrusion system of the cable seamless metal sheath of big caliber.

For achieving the above object, the present invention has adopted following technical scheme: extrusion system comprises frame, two squeegee rollers that rotating shaft is parallel to each other are set on the frame, be respectively equipped with the extruding race of at least one circumferencial direction on the opposite and wheel rim of the rotation direction of squeegee roller, be respectively equipped with the guide bracket that matches with it on the extruding race, guide bracket and squeegee roller groove form the extrusion chamber that passes through for blank, be provided with die holder between the squeegee roller, the inside of die holder is provided with the passage that current supply cable passes through, the both sides of die holder shaft core line radially are arranged with the hole that communicates with extrusion chamber, the hole communicates with the coating chamber of die holder, and the outlet that coats the chamber is coated on the periphery of the cable outlet end in the passage; Coat the chamber and be provided with electric heater and thermocouple along its circumferential direction.

As shown from the above technical solution, extrusion system of the present invention is provided with two squeegee rollers that rotating shaft is parallel to each other on frame, be provided with die holder between the squeegee roller, extrusion billet enters extrusion chamber and coats the chamber after the hole on the die holder enters, because the hole is symmetrically arranged in the radial direction of die holder, so on die holder, the upper/lower positions place has extrusion billet to enter extrusion chamber simultaneously, when squeegee roller is worked like this, blank has the charging simultaneously of two points at least at the circumferencial direction that coats the chamber, shortened the runner of blank, and have a narrow range of temperature, the flow through blank abundance of die holder, product quality is improved, and has avoided local scarce material effectively and the depression that causes and the appearance of crackle for the tubing of big caliber, and output also is improved simultaneously.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of squeegee roller die holder;

Fig. 3 is the A-A cutaway view of Fig. 2;

Fig. 4 is the B-B cutaway view of Fig. 2;

Fig. 5 is the structural representation of die holder;

Fig. 6 is the structural representation of guide bracket;

Fig. 7 is the vertical view of extrusion system;

Fig. 8 is that the A of Fig. 7 is to view;

Fig. 9 is that the B of Fig. 7 is to view;

Figure 10 is the A portion enlarged drawing of Fig. 9;

Figure 11 is the C-C cutaway view of Fig. 9;

Figure 12 is the structural representation of extruding wheel shaft.

The specific embodiment

The present invention will be further described below in conjunction with accompanying drawing:

Extrusion system comprises frame 10, frame 10 is the memorial archway shape, two

squeegee rollers

20,30 that rotating shaft is parallel to each other are set on the frame 10, as preferred version of the present invention, selection is arranged to the upper and lower structure that is arranged in parallel with

squeegee roller

20,30, in the following specification also is to describe with the upper and lower structure that is arranged in parallel.

As Fig. 1, shown in Figure 5,

squeegee roller

20,30 rotating shaft 22, on 32, under be arranged in parallel, squeegee roller 20, be respectively equipped with the extruding race 21 of at least one circumferencial direction on the opposite and wheel rim of 30 rotation direction, 31, extruding race 21, be respectively equipped with the guide bracket 50 that matches with it on 31, guide bracket 50 and extruding

race

21,31 form the extrusion chamber that passes through for blank, squeegee roller 20, be provided with die holder 40 between 30, the inside of die holder 40 be provided with the passage that current supply cable 60 passes through, the both sides of die holder 40 shaft core lines radially are arranged with the hole 41 that communicates with extrusion chamber, hole 41 communicates with the coating chamber 44 of die holder 40, and the outlet that coats chamber 44 is coated on the periphery of cable 60 ports of export in the passage.

As preferred version of the present invention, be chosen in and be arranged with two extruding

races

21,31 on the wheel rim of

squeegee roller

20,30 respectively, can in coating chamber 44, the charging of laterally zygomorphic four points be arranged like this, circumference charging abundance, can push and make bigbore tubing 90, one or more extruding race can according to circumstances be set be feasible.

On die holder 40 shaft core lines, the every side in following both sides is provided with two holes that communicate with extrusion chamber 41, on, the hole 41 of following both sides is symmetrical arranged along shaft core line, be exactly so that the level of shaft core line and the face of vertical direction are that the center is symmetrical arranged excessively specifically, with the distance between symmetrically arranged two holes 41 of vertical plane of crossing die holder 40 shaft core lines less than with the distance between symmetrically arranged adjacent two holes 41 of horizontal plane of crossing die holder 40 shaft core lines, this is by die holder 40 and

squeegee roller

20,30 the position of matching relation is determined, blank is entered with the shortest distance coat chamber 44.

As shown in figure 12, rotating

shaft

22,32 1 ends of

squeegee roller

20,30 are provided with transmission mechanism, and the other end is provided with the screw thread that matches with hydraulic nut, and the middle part is provided with the spline that matches with squeegee roller 20,30.Motor 70 provides the power of rotating

shaft

22,32 rotations of ordering about squeegee roller, described transmission mechanism is gear drive, be provided with reductor 80 between motor 70 and the extrusion system, the spline of the rotating

shaft

22,32 of squeegee roller is divided into two sections, and two sections middle part is provided with cooling water hole 221,321.

As preferred version of the present invention, rotating

shaft

22,32 is cooperated with

squeegee roller

20,30 usefulness splines, the one, assembling for convenience, spline can also transmit the moment of torsion of a part in rotation process in addition.

Rotating shaft

22,32 is divided into two sections settings, is conveniently at the vacant position of centre cooling water hole 221,321 to be set, and when

squeegee roller

20,30 rotates it is cooled off.The inside of rotating

shaft

22,32 is provided with two water routes, and one is the water inlet path, and another is the backwater path.

As Fig. 1, Fig. 4, shown in Figure 6, face and

squeegee roller

20,30 concentric settings that guide bracket 50 matches with extruding

race

21,31, guide bracket 50 comprises the envelope piece 51 of leading portion and the plug 52 of back segment, the end of plug 52 is provided with lug boss 521, lug boss 521 matches with the cross section of extruding

race

21,31, plug 52 is provided with through hole 53 with the junction of lug boss 521, in other words, lug boss 521 matches with extruding

race

21,31, aluminium liquid is flowed through be plugged herein, can only enter through hole 53 and flow to die holder 40.Through hole 53 communicates with hole 41 on the die holder 40, and the through hole 53 on the described plug 52 be a bellmouth with the hole 41 on the die holder 40, and both coincide by axis, the position in the hole 41 on the die holder 40 with

push race

21,31 residing positions and be positioned at same plane.

As preferred version of the present invention, to select the envelope piece 51 of guide bracket 50 leading portions and the plug 52 design mix body structures of back segment, this structure one is easy to process, the 2nd, assembling is simple.In the present embodiment, guide bracket 50 is whole curved, and it also is feasible being arranged to other shape, but will guarantee all the time and

push race

21,31 match curved portions and squeegee roller the 20, the 30th, with one heart setting.

As shown in Figure 5, die holder 40 integral body are similar duckbill design, its upper and lower arc sections is provided with the groove that matches with guide bracket 50, be that die holder 40 is provided with the groove that matches with guide bracket 50 along its radial direction, be provided with the hole 41 that communicates with through hole 53 on the guide bracket 50 in the groove, the left and right side of die holder 40 is provided with groove.As shown in figure 10, the inboard of frame 10 is provided with the boss 14 consistent with cable 60 direct of travels, the groove secure fit on boss 14 and the die holder 40, and boss 14 is provided with limbers 141.As shown in Figure 1, circumference has cable water-cooling protective sleeve 45 and metal cooling-pipe 46 on the die holder 40, by the setting of above-mentioned limbers 141, water-cooling protective sleeve 45 and metal cooling-pipe 46, can implement cooling to region of interest and parts.

As preferred version of the present invention, die holder 40 is arranged to duck-beak type, be to utilize two squeegee rollers 20 like this, space between the wheel that 30 match constitutes, make die holder 40 as much as possible near wheel body, the path that blank is flowed through is the shortest, it also is feasible being arranged to other form, as long as assurance cooperates with guide bracket 50, die holder 40 adopts concavo-convex the cooperation with the boss 14 of frame 10 inboards, boss 14 places are provided with the boss pad, the boss pad is divided into horizontal pad and vertical pad, can adjust the height of die holder 40 vertical direction by increasing and decreasing horizontal pad, pad by the increase and decrease vertical direction can be adjusted the height of die holder 40 horizontal directions, can make the arc sections and the squeegee roller at die holder 40 duckbilled places be in concentric by adjusting like this.Be provided with water-cooling protective sleeve 45 and metal cooling-pipe 46 on die holder, water-cooling protective sleeve 45 is arranged on the position of blank import department, and during extruding, outer cooling water is protected cable 60 by water-cooling protective sleeve 45 by die holder 40 time, and the crust of cable 40 is not scorched; Metal cooling-pipe 46 is arranged on the position in blank exit, and tubing 90 1 goes out mould, and just the water by the ejection of metal cooling-pipe 46 circumference surrounds, and tubing 90 is cooled very soon, help the further shaping of tubing, and the crust of cable 60 can not scorched yet.

As Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, coating chamber 44 is in the core rod 42 of die holder 40 and the circular passage between the die sleeve 43, coating chamber 44 communicates with hole 41 on the die holder 40, the exit that coats chamber 44 is around in the periphery of the channel exit that current supply cable 60 passes through, and blank is consistent with the direct of travel of cable 60 at the flow direction that coats 44 exits, chamber.Coat chamber 44 and be provided with electric heater 441 and thermocouple 442 along its circumferential direction.

As preferred version of the present invention, on the circumference that coats chamber 44, be provided with electric heater 441 and thermocouple 442, be for the temperature that will coat chamber 44 is controlled in certain scope, help the extruding of tubing 90.

As shown in figure 11, the horizontal direction and the vertical direction of die holder 40 are equipped with hold-down mechanism, the hold-down mechanism of described horizontal direction is the block 47 that is hinged on frame 10 inboards, block 47 can rotate around pin joint, the block middle part is provided with the hole 472 of matching with die holder 40, block 47 tops are provided with inclined-plane 471, and the locking of block 47 is provided by the hydraulic cylinder 49 that matches with inclined-plane 471, and the hold-down mechanism of described vertical direction is the hydraulic cylinder 48 that is provided with perpendicular to die holder 40 heart yearn directions.When needs take off die holder 40, block 47 rotates around anchor point, die holder 40 can take out when being horizontal level, block 47 is in plumbness when extruding work, the horizontal direction of die holder 40 is blocked by block 47, block 47 is by hydraulic cylinder 49 lockings that match with the inclined-plane 471 of last setting, and vertical direction is locked by the hydraulic cylinder 48 that die holder 40 tops are provided with again, and die holder 40 just can not be moved when extrude tubes 90 like this.

As Fig. 1, shown in Figure 11, extrusion system is provided with the guiding mechanism that the guiding blank enters, described guiding mechanism comprises the contact roller 11 that matches with extruding

race

21,31, contact roller 11 is provided with directive wheel 12 with the tangential direction of extruding

race

21,31, be that contact roller 11 has a common tangential with extruding

race

21,31, the wheel rim of directive wheel 12 and this tangent line are tangent.Extrusion system is provided with and squeegee roller 20, the 30 adjustable doctor blade devices that are connected 13, the linear velocity direction of scraper 131 edges of a knife of the doctor blade device 13 and edge of a knife tangent with the wheel rim of

squeegee roller

20,30 is opposite with the rotation direction of

squeegee roller

20,30, linear velocity direction herein is meant the direction of scraper 131 with respect to the relative velocity of

squeegee roller

20,30, and scraper 131 can be regulated with the relative position of

squeegee roller

20,30.

As preferred version of the present invention, it is to coat chamber 44 for the pressure ram material can be entered smoothly that contact roller 11 is set, can regulate before and after the position of contact roller 11, be that contact roller 11 can be regulated with the distance of the extruding

race

21,31 of upper and

lower squeegee roller

20,30, be provided with directive wheel 12 in contact roller 11 and the tangential direction of pushing

race

21,31, the existence of directive wheel 12 is in order to change the feedstock direction of bar material, pressing material turns to through directive wheel 12 and sends into extruding

race

21,31, compress by contact roller 11,

squeegee roller

20,30 rotations then, pressing material is sent into extrusion chamber.During operate as normal, the position of doctor blade device 13 is fixed with respect to frame 10, and in

squeegee roller

20,30 rotating process, the extruding clout that overflows extruding

race

21,31 is just swept by scraper 131, guarantee the cleaning of rim outer surface like this, avoided clout impurity to sneak in the extrusion chamber.

As Fig. 8, shown in Figure 9, frame 10 is provided with the conveying mechanism of mounting or dismounting die holder 40, described conveying mechanism comprises two hydraulic cylinders 15 that are hinged on frame 10 lateral surfaces, the piston rod head of two hydraulic cylinders 15 links to each other with plate 16 respectively, plate 16 is provided with the hole 161 of matching with die holder 40, be provided with bearing 17 at the position near the pin joint of two hydraulic cylinders 15, bearing 17 is hinged with other two piston rod heads that are hinged on the hydraulic cylinder 18 on frame 10 lateral surfaces respectively.

As preferred version of the present invention, on frame 10, be provided with the conveying mechanism of mounting or dismounting die holder 40 usefulness, be to consider that die holder 40 itself is very heavy, waste time and energy by manually carrying in process of production, but also have certain accident potential.

The concrete course of work is as follows:

Extrusion billet enters directive wheel 12 by feed appliance, through directive wheel 12 turn to enter the

extruding race

21,31, compress by contact roller 11 again, make it be positioned at extruding race 21 all the time, in 31, at this

moment squeegee roller

20,30 rotations, extrusion billet is arrived by the hole 41 of the hole on the guide bracket 50 53 on die holder 40 and coats chamber 44, when extrusion billet enters coating chamber 44, cable 60 is entered simultaneously by the inner passage of die holder, change the exit periphery that is located at the passage that current supply cable 60 passes through owing to coat the exit in chamber 44, push the outside that the tubing 90 that comes out directly is coated on cable 60 like this.

In sum, the present invention adopts on die holder 40, two sides are provided with squeegee roller 20 down, 30, and squeegee roller 20, be respectively equipped with two extruding races on 30, extrusion billet is simultaneously from die holder 40 like this, totally four feed points of following two sides enter coating chamber 44 simultaneously, extrusion billet arrives at the shortest path and is full of and coats chamber 44, on the circumference in coating chamber 44 electric heater 441 and thermocouple 442 are housed, coating chamber 44 circumference temps and pressure all are consistent, and the feed points of four direction makes the circumference feed abundance of die holder 40, can push and make bigbore tubing 90, having avoided in the past effectively, the bassoon diameter pipes lacks depression and the seminess that material causes because of the part, product quality is improved, and also having had significantly of PR single-wheel structure in the past improved.

Claims

1. extrusion system, it is characterized in that: extrusion system comprises frame (10), two squeegee rollers (20 that rotating shaft is parallel to each other are set on the frame (10), 30), squeegee roller (20,30) be respectively equipped with the extruding race (21 of at least one circumferencial direction on the opposite and wheel rim of rotation direction, 31), extruding race (21,31) be respectively equipped with the guide bracket (50) that matches with it on, guide bracket (50) and extruding race (21,31) form the extrusion chamber that passes through for blank, squeegee roller (20,30) be provided with die holder (40) between, the inside of die holder (40) is provided with the passage that current supply cable (60) passes through, the both sides of die holder (40) shaft core line radially are arranged with the hole (41) that communicates with extrusion chamber, hole (41) communicates with the coating chamber (44) of die holder (40), and the outlet that coats chamber (44) is coated on the periphery of cable (60) port of export in the passage; Coat chamber (44) and be provided with electric heater (441) and thermocouple (442) along its circumferential direction.

2. extrusion system according to claim 1, it is characterized in that: face and the concentric setting of squeegee roller (20,30) that guide bracket (50) matches with extruding race (21,31), guide bracket (50) comprises the envelope piece (51) of leading portion and the plug (52) of back segment, the end of plug (52) is provided with lug boss (521), lug boss (521) matches with the cross section of extruding race (21,31), the junction of plug (52) and lug boss (521) is provided with through hole (53), and through hole (53) communicates with hole (41) on the die holder (40).

3. extrusion system according to claim 1, it is characterized in that: the exit that coats chamber (44) is around in the periphery of the channel exit that current supply cable (60) passes through, and blank is consistent with the direct of travel of cable (60) at the flow direction that coats exit, chamber (44).

4. extrusion system according to claim 1, it is characterized in that: extrusion system is provided with the guiding mechanism that the guiding blank enters, described guiding mechanism comprises the contact roller (11) that matches with extruding race (21,31), and contact roller (11) is provided with directive wheel (12) with the tangential direction of extruding race (21,31).

5. extrusion system according to claim 1, it is characterized in that: extrusion system is provided with and squeegee roller (20,30) the adjustable doctor blade devices that are connected (13), and the linear velocity direction of scraper (131) edge of a knife of doctor blade device (13) and the edge of a knife tangent with the wheel rim of squeegee roller (20,30) is opposite with the rotation direction of squeegee roller (20,30).

6. extrusion system according to claim 1, it is characterized in that: the upper and lower side of die holder (40) is provided with the groove that matches with guide bracket (50), be provided with the hole (41) that communicates with through hole (53) on the guide bracket (50) in the groove, the left and right side of die holder (40) is provided with groove.

7. extrusion system according to claim 1, it is characterized in that: rotating shaft (22, a 32) end of squeegee roller (20,30) is provided with transmission mechanism, the other end is provided with the screw thread that matches with hydraulic nut, and the middle part is provided with the spline that matches with squeegee roller (20,30).

8. extrusion system according to claim 1 is characterized in that: coating chamber (44) is the core rod (42) and the circular passage between the die sleeve (43) that is positioned at die holder (40), and coating chamber (44) communicates with hole (41).

9. extrusion system according to claim 1 is characterized in that: die holder (40) is gone up circumference cable water-cooling protective sleeve (45) and metal cooling-pipe (46).

10. extrusion system according to claim 1, it is characterized in that: frame (10) is provided with the conveying mechanism of mounting or dismounting die holders (40), described conveying mechanism comprises two hydraulic cylinders (15) that are hinged on frame (10) lateral surface, the piston rod head of two hydraulic cylinders (15) links to each other with plate (16) respectively, plate (16) is provided with the hole (161) of matching with die holder (40), be provided with bearing (17) at the position near the pin joint of two hydraulic cylinders (15), bearing (17) is hinged with other two piston rod heads that are hinged on the hydraulic cylinder (18) on frame (10) lateral surface respectively.

11. extrusion system according to claim 2 is characterized in that: the hole (41) on through hole (53) on the described plug (52) and the die holder (40) is a bellmouth, and both coincide by axis.

12. extrusion system according to claim 6, it is characterized in that: the inboard of frame (10) is provided with the boss (14) consistent with cable (60) direct of travel, groove secure fit on boss (14) and the die holder (40), boss (14) is provided with limbers (141).

13. extrusion system according to claim 8 is characterized in that: be respectively equipped with two extruding races (21,31) on the wheel rim of squeegee roller (20,30), upper and lower being arranged in parallel of rotating shaft (22,32) of squeegee roller (20,30).

14. extrusion system according to claim 8, it is characterized in that: motor (70) provides the power of rotating shaft (22, the 32) rotation of ordering about squeegee roller, described transmission mechanism is gear drive, be provided with reductor (80) between motor (70) and the extrusion system, the spline of the rotating shaft of squeegee roller (22,32) is divided into two sections, and two sections middle part is provided with cooling water hole (221,321).

15. according to claim 11 or 13 described extrusion systems, it is characterized in that: the every side in upper and lower both sides of die holder (40) shaft core line is provided with two holes that communicate with extrusion chamber (41), the hole of upper and lower both sides (41) is that the center is symmetrical arranged with the level of crossing shaft core line and the face of vertical direction, with the distance between symmetrically arranged two holes of vertical plane (41) of crossing die holder (40) shaft core line less than with the distance between symmetrically arranged adjacent two holes of horizontal plane (41) of crossing die holder (40) shaft core line.