CN204074769U - The expansion plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal - Google Patents

The expansion plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal Download PDF

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Publication number
CN204074769U
CN204074769U CN201420506315.9U CN201420506315U CN204074769U CN 204074769 U CN204074769 U CN 204074769U CN 201420506315 U CN201420506315 U CN 201420506315U CN 204074769 U CN204074769 U CN 204074769U
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cavity
die
die cavity
squeegee roller
symmetry
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刘元文
裴久杨
闫志勇
张旭
宋宝韫
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Dalian Kangfeng Science & Technology Co Ltd
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Dalian Kangfeng Science & Technology Co Ltd
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Abstract

The utility model belongs to for continuously extruded equipment.A kind ofly expand the plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal, after cavity charging aperture and expansion die cavity, divergent die is installed, after divergent die, mould is installed, divergent die and mould are fixed in cavity by cavity lid, and cavity lid is connected with screw with between cavity; The axis of described squeegee roller is substantially vertical with the plane of symmetry of expansion large of die cavity both sides, has the divergent die with "eight" shape splitter box between mould and expansion die cavity.The utility model content is exactly generally change the propagation direction of expansion die cavity into the direction vertical with conventional Extension die cavity, copper bar series products is extruded to change into by original level and vertically vertically to extrude, cavity charging aperture is strengthened greatly in circular arc tangential line direction, and utilize divergent die to adjust the flow velocity of blank in cavity mold, keep the product that squeezes out straight.

Description

The expansion plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal
Technical field
The utility model belongs to non-ferrous metals processing field, relates to for continuously extruded equipment.
Background technology
Existing continuous extrusion apparatus produces large width product, all adopts single-wheel list groove or single-wheel dual-slot structure, and place, product width direction plane is parallel with main-shaft axis, and the large plane of the product namely squeezed out is parallel with main-shaft axis.Product width limits by boots seat width and frame width, if want to produce large width product, just must increase the width of boots seat to ensure that boots seat has enough strength and stiffness, the width increasing boots seat will inevitably make frame width widen, axis system strong point span can be caused like this to increase, rigidity is deteriorated, thus causes each part life of axis system to reduce.In order to avoid the flash be oxidized on squeegee roller surface enters product, therefore general when product quality is had higher requirements, the width dimensions of cavity charging aperture, be generally less than or equal the width dimensions of squeegee roller groove, this just determines and determines that the size of expansion cavity feed gap dimension on cavity propagation direction must be close with blank diameter, want to do large width product, just necessarily adopt large diameter round bar as blank, blank diameter adds the moment of torsion that conference causes equipment, the apparatus of load such as radial load become large, therefore, squeegee roller diameter must be strengthened, increase major axis diameter and bear nip load, this causes motor, reduction box increases rapidly, the continuous extruder producing large width is made to become very huge and expensive.Along with the increase of extruder, frock, the weight of mould as squeegee roller, cavity etc. of extruder also increase rapidly, which results in manufacturing cost and significantly rise, make the operating cost of main equipment apparently higher than mini-plant.
Summary of the invention
The purpose of this utility model is to provide a kind of short span high rigidity continuous extruder, realize the extruding of flakiness ratio product, realize the product squeezing out large width on small extruding machine, solve product flakiness ratio is just difficult on continuous extruder once extruded more than 25, reduces the production run cost that extruder cost effectively can also reduce equipment simultaneously.
The technical scheme that the utility model is adopted for achieving the above object is: a kind ofly expand the plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal, cavity 106 matches with ring-shaped groove 111 squeegee roller 109, cavity is provided with Combined stopping block 107, after cavity charging aperture and expansion die cavity, divergent die 601 is installed, be provided with mould 104 after divergent die, divergent die and mould are fixed in cavity by cavity lid, and cavity lid 110 is connected with screw with between cavity; The axis 108 of described squeegee roller 109 is substantially vertical with the plane of symmetry 501 in expansion large face, die cavity both sides 101, has the divergent die with "eight" shape splitter box between mould and expansion die cavity.
Described expansion die cavity is flat "eight" shape, and the large scale B of expansion die cavity 502 is 5 times to 20 times of bar material diameter D.
The angle beta that the extended boundary envelope of surfaces line of described expansion die cavity is formed between 120 ° to 175 °, preferably 150 °.
Described expansion die cavity, extrudes one, direction with drafting angle at product, drafting angle 1 ° to 10 °, preferred 5-6 °.
The large scale C of described cavity charging aperture 503 is the line direction along feeding guide-plate and material blocking block, and large scale C is 1.2-3 times of blank 101 diameter D, and preferred 1.5-2.5 doubly.
Described divergent die structure is in "eight" shape divergent die and centre with projection, and protruding both sides are blank flowing divergent die grooves 602, are greater than the length L2 of the splitter box near material blocking block side near the length L1 of the splitter box of feeding guide-plate side.
Described divergent die and extrusion die are integrative-structure, or Split type structure.
Described die inlet is with choked flow angle, and the angular range at choked flow angle is 1 ° to 8 °, preferably 3 ° to 6 °, and calibrating strap is below choked flow angle, and the length of calibrating strap is 1.5-4mm, preferred 2-3mm.
Described cavity corner is provided with heater 201, and heater is made up of heater watch box and electrothermal tube, and electrothermal tube is placed in hot device watch box.
, with cooling device 202, there is mutual UNICOM water flow channel described cavity bottom surface in cooling device.
Continuous extruder be on rotary squeezing wheel with circumferencial direction ring-shaped groove, maintain certain interval with squeegee roller and with material blocking block on the cavity coordinated with squeegee roller, be provided with mould in cavity, product squeezes out in mould.
Continuous extruder of the present utility model, the propagation direction of expansion die cavity carries out along the squeegee roller groove plane of symmetry, also the plane of symmetry namely expanding large of the die cavity left and right sides is substantially vertical with squeegee roller axis, for approximate rectangular section copper bar product, the large plane of the product squeezed out vertical with the rotation centerline of squeegee roller; Cavity charging aperture is of a size of 1.2 to 2.5 times of blank diameter by this device in feeding guide-plate and material blocking block line direction; And utilize divergent die to adjust the flow velocity of blank in cavity mold, keep the product that squeezes out straight.
The utility model content is exactly generally change the propagation direction of expansion die cavity into the direction vertical with conventional Extension die cavity, copper bar series products is extruded to change into by original level and vertically vertically to extrude, cavity charging aperture is strengthened greatly in circular arc tangential line direction, and utilize divergent die to adjust the flow velocity of blank in cavity mold, keep the product that squeezes out straight.
The utility model goes out charging rate near material blocking block side because continuously extruded characteristic determines at cavity charging aperture will faster than near feeding guide-plate side, therefore technological difficulties of the present utility model are that how to keep product to squeeze out the speed up and down of product after mould consistent, also namely how to keep that product is straight to be squeezed out.In order to solve cavity charging aperture place speed uneven cause product extrusion die time flow velocity uneven, the utility model has a divergent die before a mold, adjusts the flow velocity of blank, ensures that the product that squeezes out is straight.
The utility model cavity corner can with electric hot plate, and electric hot plate adopts heater watch box and electrothermal tube to form.This electric hot plate can improve the temperature of cavity expansion slot both sides, is conducive to expanding with blank flowing.
The utility model divergent die is used to adjust the plane of symmetry and the substantially vertical institute's blank caused of squeegee roller axis owing to expanding large of the die cavity left and right sides to expand upper and lower flow velocity in die cavity asymmetric, and then cause product extrusion die mouth to the problem of curving, described divergent die is turned down at the blank flow velocity near material blocking block side or flow, and will heighten near feeding guide-plate side blank flow velocity or flow, upper and lower flow velocity uniformity when making final blank flow to mould outlet, can ensure the straight extrusion die mouth of product.
The large plane of the products export width on the boots seat of the utility model continuous extruder is vertical with the rotation direction of squeegee roller.The large scale of the products export of boots seat is consistent with the height dimension direction of boots seat, the width of boots seat can be greatly reduced, also the span of extruder frame is greatly reduced, shorten the distance of main shaft left and right sides bearing, improve the strength and stiffness of boots seat and axis system, improve the service life of main shaft and main shaft bearing, considerably reduce manufacturing cost and the use cost of extruder, the larger product of flakiness ratio can be extruded simultaneously.
The length dimension of cavity charging aperture is consistent with the width of product, be conducive to the extension forming of blank, along cavity blank propagation direction, cavity feed gap dimension can be lengthened like this, increase the area of cavity charging aperture, the unit pressure on material blocking block can be reduced, improve the service life of material blocking block.Such structure just makes the length dimension of cavity charging aperture no longer be subject to the restriction of blank diameter and squeegee roller groove width, cavity feed gap dimension can be far longer than the width of squeegee roller groove, therefore can realize using the blank of minor diameter on small extruding machine, squeeze out wider product.
Accompanying drawing explanation
Fig. 1 is the expansion plane of symmetry of large of die cavity and the continuous extruder schematic diagram of squeegee roller axes normal;
Fig. 2 is cavity assembly relation schematic diagram;
Fig. 3 is heater 201 schematic diagram;
Fig. 4 is cooling device 202 structural representation;
Fig. 5 is cavity 106 sectional view;
Fig. 6 is divergent die 601 structural representation;
Fig. 7 is mould 104 structure chart;
In figure: 101 expansion large of die cavities, 102 compact wheels, 103 feeding guide-plates, 104 moulds, 106 cavitys, 107 material blocking blocks, 108 squeegee roller axis, 109 squeegee rollers, 110 cavity lids, 111 ring-shaped grooves;
201 heaters, 202 cooling devices, 203 guide plate mounting grooves, 301 heater watch boxes, 302 electrothermal tubes;
401 coldplates, 402 water inlet pipes, 403 return pipes;
501 cavitys spread die cavity large plane of symmetry, 502 expansion die cavities, 503 charging apertures, 601 divergent dies, 602 divergent die grooves, θ is splitter box angle on divergent die, γ mould choked flow angle, β expands the angle of the left and right sides of die cavity flat " eight ", L1 is near the splitter box length of feeding guide-plate side, and L2 is near the splitter box length of material blocking block side, and C cavity charging aperture is in the length of propagation direction, B expands the greatest width dimension of flat " eight " type of die cavity, and E expansion slot is near mould place width.
Detailed description of the invention
Below in conjunction with specific embodiment and accompanying drawing, the utility model is described in further detail, but the utility model is not limited to specific embodiment.
As shown in Figure 1, a rotary squeezing with ring-shaped groove 111 takes turns 109 to the utility model extruder, and this squeegee roller 109 is arranged on the prestressing force axis system of string nested structure; A cavity 106 with arc surface, the centre of gyration of this cambered surface aligns substantially with the axis 108 of the circular arc of squeegee roller 109, certain gap is kept between two cambered surfaces, there is not direct contact when working, cavity 106 has a charging hole 503, what be connected with this charging hole is that die cavity 502 expanded by a blank; The feeding guide-plate 103 of circular shape, is arranged in the guide plate mounting groove 203 above cavity cambered surface; Material blocking block 107 is arranged on cavity, and its bossing stretches in the ring-shaped groove 111 of squeegee roller 109; Pressure wheel 102 extend in squeegee roller groove 111, and the maximum interspace that ring-shaped groove 111 and the pressure wheel 102 of squeegee roller 109 are formed is less than blank diameter; Mould 104 is arranged in cavity 106, has a divergent die 601 before a mold, connects between cavity 106 and cavity lid 110 with bolt, makes cavity 106, divergent die 601, and mould 104, cavity lid 110 form a component parts body; Four angles of cavity 106 are separately installed with a heater 201(as shown in Figure 3), this this device is made up of heater watch box 301 and electrothermal tube 302, the wire of electrothermal tube 302 is connected with power supply, the position of heater 201 can regulate, after cavity 106 installs, regulate the position of heater 201, make itself and cavity 106 close contact, be conducive to the conduction of heat; The bottom surface of cavity 106 has a cooling device 202(as shown in Figure 4), be made up of coldplate 401, water inlet pipe 402 and return pipe 403, coldplate 401 inside is processed with the hole be interconnected, and ensures cooling water circulation flowing.
As shown in Fig. 2, Fig. 5, the expansion die cavity 502 of described cavity 106 carries out to external expansion along the squeegee roller groove plane of symmetry, and the plane of symmetry 501 also namely expanding large face, die cavity 502 left and right sides 101 is substantially vertical with squeegee roller axis 108.
Described cavity charging aperture 503 is 1.5 to 3 times of blank diameter at the size C of extended pattern cavity direction, preferably 2 to 2.5 times.
Described expansion die cavity 502, extrudes one, direction with drafting angle at product, drafting angle 1 ° to 10 °, preferred 5-6 °.
Described expansion die cavity 502 at extruded product width for being similar to flat "eight" shape, the angle β of flat " eight " left and right sides generally between 120 ° to 175 °, preferably about 150 °.
The greatest width dimension B of flat " eight " type of described expansion die cavity 502 is 5 to 20 times of copper shank diameter D.
As shown in Figure 6 and Figure 7, splitter box 602 on described divergent die 601, for the "eight" shape groove 602 produced on divergent die, groove length near feeding guide-plate side is L1, groove length near material blocking block side is L2, L1 is greater than L2 length dimension 3mm to 20mm, and divergent die inclination angle theta is 3 ° to 60 °, and the inclination angle theta of left and right sides splitter box can be unequal.
Described mould 104, entrance side is with choked flow angle γ, and the scope of choked flow angle γ is 1 ° to 8 °, preferably 3 ° to 6 °, and calibrating strap is below choked flow angle, and the length of calibrating strap is 1.5-4mm, preferred 2mm to 3mm.
Assembled before cavity 106 loads extruder and be heated to predetermined temperature, the electrothermal tube 302 of heater 201 is energized, making the temperature of heater identical with the preheat temperature of cavity 106.Blank is after the extruding of pressure wheel 102, deform, the restriction of trenched side-wall is taken turns because distortion is squeezed, after making distortion blank and squeegee roller groove surface between form larger pressure, due to the existence of stiction, when squeegee roller 109 rotates, blank rotates together with squeegee roller 109, along with the continuous increase of length of nipping, stiction constantly increases, after squeegee roller turns over about 90 °, blank runs into the stop that material blocking block 107 stretches into squeegee roller groove internal projection part, and the stiction now between blank and squeegee roller 109 flute surfaces has enough forced blank to deform, produce a large amount of deformation heat simultaneously, the temperature of blank is raised, resistance of deformation reduces, there is Plastic Flow, blank is entered in expansion die cavity 502 by the charging hole 503 on cavity 106, after divergent die 601 and mould 104, form product 105.
Described extruder, the axis 108 of its squeegee roller 109 is vertical with the symmetrical plane 501 in two large faces 101 about expansion die cavity, and product width by the restriction of frame width, can not reduce frame span, increases axis system rigidity;
Described cavity 106 has a cambered surface match with the cambered surface of squeegee roller, the large scale C of charging hole 203 is at the circumferencial direction of circular arc, and this size is by the restriction of blank diameter, is 1.2 to 3 times of blank diameter, realizes the extruding of large ratio;
A circular blank embeds in the groove of squeegee roller 109 after the extruding of pressure wheel 102, and therewith rotate, after feeding guide-plate 103, cavity 106 is entered after being subject to the stop of material blocking block 107, product 105 is formed after mould 104, device for simultaneous heating 201 is energized, and cooling device 202 passes into cooling water, ensures that cavity works at the temperature preset.
Adopt the plane of symmetry of large of above-mentioned expansion die cavity and the continuous extruder of squeegee roller axes normal, 20mm to draw T2 copper bar for blank, squeegee roller diameter is 400mm, squeegee roller material is H13 hot die steel, cavity charging aperture large scale C is 50mm, the angle β of the left and right sides of expansion die cavity flat " eight " is 150 °, cavity expansion slot width B is 240mm, the width E at expansion slot and mould contact surface place is 25mm, cavity drafting angle is 3 ° of cavity materials is H13 hot die steel, the shunting angle θ of divergent die is 15 °, close material blocking block side size L2 is 100mm, 120mm is of a size of near feeding guide-plate side L1, the drafting angle of divergent die is 3 °, mould choked flow angle γ is 5 °, achieving product is the once extruded of the R angle bus duct copper bar of 230mm × 7mm.This 230mm × 7mm bus duct copper bar cannot be produced on traditional continuous extruder at all, and conventional production methods is the copper bar of extruding 230mm × 11.5mm, then through being rolled down to 230mm × 7mm, more annealed and pickling.Adopt continuous extruder of the present utility model not only to achieve the once extruded of the bus duct copper bar of super large flakiness ratio, eliminate annealing operation and pickling process, also solve the environmental issue of traditional pickling, there is significant economic benefit and social benefit.

Claims (14)

1. expand the plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal for one kind, cavity (106) matches with ring-shaped groove (111) squeegee roller (109), cavity is provided with Combined stopping block (107), it is characterized in that: after cavity charging aperture and expansion die cavity, divergent die (601) is installed, be provided with mould (104) after divergent die, divergent die and mould are fixed in cavity by cavity lid, and cavity lid (110) is connected with screw with between cavity; The axis (108) of described squeegee roller (109) is substantially vertical with the plane of symmetry (501) of expansion die cavity both sides large (101), has the divergent die with "eight" shape splitter box between mould and expansion die cavity.
2. according to claim 1ly a kind ofly expand the plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal, it is characterized in that: expansion die cavity be flat "eight" shape, the large scale B expanding die cavity (502) is 5 times to 20 times of bar material diameter D.
3. according to claim 2ly a kind ofly expand the plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal, it is characterized in that: the angle beta that the extended boundary envelope of surfaces line of described expansion die cavity is formed is between 120 ° to 175 °.
4. according to claim 2ly a kind ofly expand the plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal, it is characterized in that: described expansion die cavity, extrude one, direction with drafting angle at product, drafting angle 1 ° to 10 °.
5. according to claim 1ly a kind ofly expand the plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal, it is characterized in that: the large scale C of described cavity charging aperture (503) is the line direction along feeding guide-plate and material blocking block, and large scale C is 1.2-3 times of blank (101) diameter D.
6. according to claim 1ly a kind ofly expand the plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal, it is characterized in that: described divergent die structure is with projection in "eight" shape divergent die and centre, protruding both sides are blanks flowing divergent die groove (602), are greater than the length L2 of the splitter box near material blocking block side near the length L1 of the splitter box of feeding guide-plate side.
7. according to claim 1ly a kind ofly expand the plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal, it is characterized in that: described divergent die and extrusion die are integrative-structure, or Split type structure.
8. according to claim 1ly a kind ofly expand the plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal, it is characterized in that: described die inlet is with choked flow angle, the angular range at choked flow angle is 1 ° to 8 °, and calibrating strap is below choked flow angle, and the length of calibrating strap is 1.5-4mm.
9. according to claim 1ly a kind ofly expand the plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal, it is characterized in that: described cavity corner is provided with heater (201), heater is made up of heater watch box and electrothermal tube, and electrothermal tube is placed in hot device watch box.
10. according to claim 1ly a kind ofly expand the plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal, it is characterized in that:, with cooling device (202), there is mutual UNICOM water flow channel described cavity bottom surface in cooling device.
11. according to claim 2ly a kind ofly expand the plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal, it is characterized in that: the angle beta that the extended boundary envelope of surfaces line of described expansion die cavity is formed is 150 °.
12. according to claim 2ly a kind ofly expand the plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal, and it is characterized in that: described expansion die cavity, extrude one, direction with drafting angle at product, drafting angle is 5-6 °.
13. according to claim 1ly a kind ofly expand the plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal, it is characterized in that: the large scale C of described cavity charging aperture (503) is the line direction along feeding guide-plate and material blocking block, and large scale C is 1.5-2.5 times of blank (101) diameter D.
14. according to claim 1ly a kind ofly expand the plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal, it is characterized in that: described die inlet is with choked flow angle, the angular range at choked flow angle is 3 ° to 6 °, and calibrating strap is below choked flow angle, and the length of calibrating strap is 2-3mm.
CN201420506315.9U 2014-09-04 2014-09-04 The expansion plane of symmetry of large of die cavity and the continuous extruder of squeegee roller axes normal Active CN204074769U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104174678A (en) * 2014-09-04 2014-12-03 大连康丰科技有限公司 Continuous extrusion machine with symmetry plane of large surfaces of expanded cavity perpendicular to axis of extrusion wheel
CN111085558A (en) * 2019-12-31 2020-05-01 重庆鸽牌电线电缆有限公司 Copper bar production device and use method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104174678A (en) * 2014-09-04 2014-12-03 大连康丰科技有限公司 Continuous extrusion machine with symmetry plane of large surfaces of expanded cavity perpendicular to axis of extrusion wheel
CN111085558A (en) * 2019-12-31 2020-05-01 重庆鸽牌电线电缆有限公司 Copper bar production device and use method thereof
CN111085558B (en) * 2019-12-31 2021-05-28 重庆鸽牌电线电缆有限公司 Copper bar production device and use method thereof

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