CN106077356A - Five roller gradation type axle push shaping apparatus - Google Patents
Five roller gradation type axle push shaping apparatus Download PDFInfo
- Publication number
- CN106077356A CN106077356A CN201610463394.3A CN201610463394A CN106077356A CN 106077356 A CN106077356 A CN 106077356A CN 201610463394 A CN201610463394 A CN 201610463394A CN 106077356 A CN106077356 A CN 106077356A
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- Prior art keywords
- pushing away
- machine
- roller
- hydraulic
- axle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
Abstract
Five roller gradation type axle push shaping apparatus, belong to axletree and manufacture field.It is characterized in being sequentially connected with constituted by hydraulic feed device, the side's of pushing away machine, automatic charging machine, automatic emptying machine and stop device；The side's of pushing away machine is made up of housing, at least five group rolls and base, and five groups of rolls are located in housing vertically, constitutes and is faded to chamber, the foursquare side of pushing away by circumference, and base is connected with housing, and base is fixed in ground base；Hydraulic feed device is connected with the side's of pushing away machine by connecting rod, is placed in the rear of the side's of pushing away machine；Automatic charging machine is vertically fixed on the side of hydraulic feed device and the side's of pushing away arbor line；Automatic emptying machine is vertically fixed on the side of machine front, the side of pushing away axis；Stop device is located at automatic emptying machine front.Advantage is novel, and compact conformation is easy to operate, safe and reliable, convenience for device maintenance, and cold-drawn deformation quantity of axletree is little, is prevented effectively from the fine cracks that ferrous materials produces because of drastic deformation, improves axletree qualification rate, and work efficiency is high, and labor cost is low.
Description
Technical field
The invention belongs to axletree manufacturing technology field, particularly relate to a kind of axle push shaping apparatus.
Background technology
Along with the raising of the level of the productive forces, the circulation of goods becomes the important step that daily work produces, and the stream of goods
Logical be unableing to do without transport, and trailer plays key player in goods transports, Trailer car shaft is important in Trailer axle simultaneously
Parts.The axletree of the semitrailer of China's goods transport selects square axle, i.e. axletree two ends to be circular spindle nose, and centre is 150
× 150 millimeters square, is made by the seamless steel pipe that external diameter is 178 millimeters, wall thickness 12～18 millimeters, first will on milling train
The mode of the spindle nose hot rolling at axletree two ends is rolled, then by the mode of cold deformation by mid portion by the seamless steel of 178 millimeters
Tubular become 150 × 150 square.Use now a cold drawing die, deformation of seamless steel pipe of 178 millimeters is become 150
× 150 square.Shortcoming is that in a Cold Drawing Process, axletree deformation quantity is big, is easily generated tiny splitting in an angle of 90 degrees corner of cube
Stricture of vagina, affects the quality of axletree, and conforming product rate is low；The cold conditions side of the pushing away process completed under huge thrust or pulling force, axletree pair
Mould has the biggest pressure, and mould parts is easily damaged, and mould parts involves great expense and spare part needs to look for manufacturer to have made to order.
Summary of the invention
For overcoming the deficiencies in the prior art, it is an object of the invention to provide a kind of five roller gradation type axle push shaping apparatus,
Compact conformation, operation, easy to maintenance, the axletree yield rate of the side of pushing away molding height.
Five roller gradation type axle push shaping apparatus, are characterized in that this device is by hydraulic feed device, the side's of pushing away machine, automatic charging
Machine, automatic emptying machine and stop device are sequentially connected with composition；The described side's of pushing away machine by rectangular shaped post housing, at least five group rolls and
Base forms, and five groups of rolls are located in housing vertically, constitutes and is faded to chamber, the foursquare side of pushing away by circumference, cylindrical during rolling
Axletree blank rolls into square axle in chamber, the side of pushing away, and base is connected with housing, and base is fixed in ground base；Described hydraulic pressure
Propulsion plant is connected with the side's of pushing away machine by connecting rod, is placed in the rear of the side's of pushing away machine, and the push rod of hydraulic feed device promotes axletree blank to enter
Enter in the side's of pushing away machine and roll；Described automatic charging machine is vertically fixed on the side of hydraulic feed device and the side's of pushing away arbor line,
And it is matched；Described automatic emptying machine is vertically fixed on the side of machine front, the side of pushing away axis, is connected with the side's of pushing away machine, automatically unloads
The axletree of lower roll forming；Described stop device is located at automatic emptying machine rear；Described hydraulic feed device, the side's of pushing away machine and
Stop device is fixed in ground base, and its center axis is on the same line.
Improve further, on described rectangular shaped post housing charging section diagonally two jiaos set through hole, connecting rod is through logical
The side's of pushing away machine is linked together with hydraulic feed device by hole by bolt；Five groups of gradation type rolls, two adjacent groups roll is set in housing
Between leave the interval of setpoint distance；Five groups of described roll often groups are made up of the fixing axle in four sides of pushing away and four rollers, push away Fang Gu
Dead axle vertically/be horizontally fixed in the same cross section of housing, four rollers are sleeved on four sides of pushing away and fix on axle, around pushing away Fang Gu
Dead axle is freely rotatable；Described roller is arranged in order to straight roller from right to left by bowed roller, constitutes and is crossfaded into pros by circumference
The chamber, the side of pushing away of shape, the centre normal in chamber, five groups of sides of pushing away is on the same line；The roller roll forming of five groups of rolls is different, its cup depth
Shortening 20% successively from first group of roll, the 5th group of roll is flat shape roller, projection in the middle part of axletree from first group of roll
Shortening 20% the most successively, the 5th group of roll exit is square finished axle.
Improve further, described hydraulic feed device include fuel tank, hydraulic cylinder, two connecting rods, push rod, pusher bar support,
Control system and push rod stop；Described connecting rod one end is connected with the side of pushing away captain square column type housing, the other end and pusher bar support
Connect；Described push rod is cylindrical, and one end is arranged on pusher bar support and is connected with hydraulic plunger, is placed between two connecting rods, separately
One end sets the internal diameter sleeve pipe slightly larger than axle head external diameter, and axle head one end is inserted in sleeve pipe.
Improving further, described automatic charging machine is made up of stock shelf, feeding hydraulic pressure pusher machine；Described feeding hydraulic pressure
Pusher is made up of feeding hydraulic pusher, carrying roller and running mechanism and feeding stop；Described feeding hydraulic pusher is even
Connecing running mechanism, carrying roller is located on running mechanism, and carrying roller matches with stock shelf, position, chamber, the side of pushing away.
Improving further, described automatic emptying machine is by splicing frame, blanking hydraulic pushing machine, aggregate rack and blanking stop
Composition；Described splicing is set up in outlet side, chamber, the machine side of pushing away of the side of pushing away, and height matches with chamber, the side of pushing away, and splicing sets up roller；Institute
The blanking hydraulic pushing machine stated is vertically arranged in splicing frame front, and front end sets the cross bar made by channel-section steel, and height matches with splicing frame
Close；Described aggregate rack is three parallel being configured to propping up of roller, is positioned at rear, splicing frame upright position.
Improving further, described stop device is made up of column, square plate and rubber blanket；Described column lower end is solid
Determining on the ground, square plate welds/is bolted to column upper end, and the center of square plate exists with Ji Tuifangqiang center, the side of pushing away
On same straight line；Described rubber blanket is laid on square plate.
Improving further, a kind of preferably material of described rubber blanket is waste tire, and rubber blanket plays cushioning effect.
During use, pre-actuate hydraulic feed device and preheat, with fork truck, axletree is transported to the upper of automatic charging machine
On bin, manually axletree is shifted onto on the carrying roller of hydraulic thrust material machine, start feeding hydraulic pressure pusher, carrying roller is pushed away along running mechanism
To the side's of pushing away station, feeding stop to send signal hydraulic propeller out of service；Now push rod is inserted in one end of axletree
On sleeve pipe, the other end inserts in first group of roll, starts hydraulic feed device, and axletree is headed into the side's of pushing away machine by push rod, when axletree is complete
When portion is headed into the side's of pushing away machine, push rod stop sends signal, and fuel tank stops advancing and resetting；Axletree proceeds in the side's of pushing away machine
Cold rolling operation, from chamber, the side of pushing away, outlet ejects the axletree of molding, due to huge inertia, ejects along the side's of pushing away cavity direction, runs into backstop
Forming cart axle bumper is lived and bounces back on the splicing frame of automatic emptying machine by device, and blanking stop is signaled to blanking hydraulic thrust
Entering device, parallel for the axletree of molding shifting onto on aggregate rack, is transported to subsequent processing by fork truck by blanking hydraulic pusher.
Compared with prior art, advantage is novel, and compact conformation is easy to operate, safe and reliable, device maintenance side
Just, cold-drawn deformation quantity of axletree is little, and the main body mechanism side of pushing away machine is made up of five groups of gradation type rolls, often one hole of group four composition
Type, five groups of passes form one by circle to square progressive formation, and seamless steel pipe thickness is usually 12mm to 18mm, uses this five
The most cold rolling molding of cold deformation mode of group gradual change completely avoid stress and excessively concentrates, and is prevented effectively from ferrous materials because of drastic deformation
And the fine cracks produced, improving the axletree qualification rate of the side's of pushing away molding, work efficiency is high, and labor cost is low.
Accompanying drawing explanation
Fig. 1 is five axle gradation type axle push shaping apparatus front view schematic diagrams.
Fig. 2 is five axle gradation type axle push shaping apparatus top view schematic diagrams.
Fig. 3 is the A-A cross-sectional view of Fig. 1.
Fig. 4 is the B-B cross-sectional view of Fig. 1.
In figure: 1, hydraulic feed device 11, connecting rod 12, push rod 13, push rod stop 2, the side's of pushing away machine 21, chamber, the side of pushing away
211, chamber, the side of pushing away import 212, chamber, the side of pushing away outlet 22, shell 23, roll 231, the side of pushing away fix axle 232, push away square shaft hold 24,
Base 3, automatic charging machine 31, stock shelf 32, hydraulic pressure pusher 321, feeding hydraulic pusher 322, carrying roller 323, walk
Row mechanism 324, feeding stop 4, automatic emptying machine 41, splicing frame 42, blanking hydraulic pusher 43, aggregate rack 44, under
Material stop 5, stop device 51, column 52, square plate 53, rubber blanket.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention will be further described.
By Fig. 1, Fig. 2, Fig. 3 it can be seen that five roller gradation type axle push shaping apparatus, it is characterized in that this device is by hydraulic drive
Device 1, the side's of pushing away machine 2, automatic charging machine 3, automatic emptying machine 4 and stop device 5 are sequentially connected with composition；The described side's of pushing away machine 2 by
Rectangular shaped post housing 22, at least five group roll 23 and base 24 form, and five groups of rolls 23 are located in housing 22 vertically, constitute by
Circumference fades to chamber, the foursquare side of pushing away 21, and during rolling, cylinder axletree blank rolls into square axle, base in chamber, the side of pushing away 21
24 are connected with housing 22, and base 24 is fixed in ground base；Described hydraulic feed device 1 is by connecting rod 11 with the side's of pushing away machine 2 even
Connecing, be placed in the rear of the side's of pushing away machine 2, the push rod 12 of hydraulic feed device 1 promotes axletree blank to enter in the side's of pushing away machine 2 and rolls；
Described automatic charging machine 3 is vertically fixed on the side of hydraulic feed device 1 and the side's of pushing away machine 2 axis, and matched；Described
Automatic emptying machine 4 is vertically fixed on the side of the side's of pushing away machine 2 front axis, is connected with the side's of pushing away machine 2, automatically unloads the car of roll forming
Axle；Described stop device 5 is located at automatic emptying machine 4 rear；Described hydraulic feed device 1, the side's of pushing away machine 2 and stop device 5
Being fixed in ground base, its center axis is on the same line.
By Fig. 1, Fig. 2, Fig. 3 it can be seen that described rectangular shaped post housing 22 feed on section diagonally two jiaos set logical
Hole, the side's of pushing away machine 2 is linked together with hydraulic feed device 1 by bolt by connecting rod 11 through through hole；Five groups of gradual changes are set in housing 22
Type roll 23, leaves the interval of setpoint distance between two adjacent groups roll 23；Five groups of described roll 23 often groups are pushed away Fang Gu by four
Dead axle 231 and four rollers 232 form, the fixing axle in the side of pushing away 231 vertically/be horizontally fixed in the same cross section of housing, four rollers
Cylinder 232 is sleeved on the fixing axle in four sides of pushing away, and around the side of pushing away, fixing axle 231 is freely rotatable；Described roller by bowed roller to flat
Straight roller is arranged in order from right to left, constitutes and is crossfaded into chamber, the foursquare side of pushing away 21, the centre normal in chamber, five groups of sides of pushing away 21 by circumference
On the same line；The roller roll forming of five groups of rolls 23 is different, and its cup depth shortens 20% from first group of roll 23 successively,
5th group of roll 23 is flat shape roller, and height protruding in the middle part of axletree from first group of roll 23 shortens 20% successively, the 5th group
Roll 23 outlet is square finished axle.
By Fig. 1, Fig. 2 it can be seen that described hydraulic feed device 1 includes fuel tank, hydraulic cylinder, two connecting rods 11, push rods
12, pusher bar support, control system and push rod stop 13；Described connecting rod 11 one end is connected with the side of pushing away captain square column type housing,
The other end is connected with pusher bar support；Described push rod 12 is cylindrical, and one end is arranged on pusher bar support and is connected with hydraulic plunger,
Being placed between two connecting rods, the other end sets the internal diameter circular sleeve slightly larger than axle head external diameter, and axle head one end is inserted in sleeve pipe.
By Fig. 1, Fig. 2 it can be seen that described automatic charging machine 3 is made up of stock shelf 31, feeding hydraulic pressure pusher 32；Institute
The feeding hydraulic pressure pusher 32 stated is by feeding hydraulic pusher 321, carrying roller 322 and running mechanism 323 and feeding stop 324 groups
Becoming, feeding stop 324 is arranged on immediately below the import of chamber, the side of pushing away；Described feeding hydraulic pusher 321 connects running mechanism
323, carrying roller 322 is located on running mechanism 323, and carrying roller 322 matches with stock shelf 32, position, chamber, the side of pushing away 21.
By Fig. 1, Fig. 2 it can be seen that described automatic emptying machine 4 is by splicing frame 41, blanking hydraulic pushing machine 42, aggregate rack
43 and blanking stop 44 form；Described splicing frame 41 is located at chamber, the machine side of pushing away of the side of pushing away and is exported 212 sides, height and chamber, the side of pushing away 21
Matching, splicing frame 41 sets roller；Described blanking hydraulic pushing machine 42 is vertically arranged in splicing frame 41 front, and front end sets by channel-section steel
The cross bar made, height matches with splicing frame 41；Described aggregate rack 43 is three parallel being configured to propping up of roller,
It is positioned at rear, splicing frame 41 upright position.
By Fig. 1, Fig. 2 it can be seen that described stop device 5 is made up of column 51, square plate 52 and rubber blanket 53；Institute
Column 51 lower end stated fixes on the ground, and square plate 52 welds/be bolted to column 51 upper end, in square plate 51
The heart and the side's of pushing away machine push away Fang Qiang 21 center on the same line；Described rubber blanket 53 is laid on square plate 52.
52 1 kinds of preferred materials of described rubber blanket are waste tire, and rubber blanket 52 plays cushioning effect.
During use, pre-actuate hydraulic feed device 1 and preheat, with fork truck, axletree is transported to automatic charging machine 3
On stock shelf 31, manually axletree is shifted onto on the carrying roller 322 of hydraulic thrust material machine 32, start feeding hydraulic pressure pusher 32, by carrying roller
322 shift the side's of pushing away station onto along running mechanism 323, feeding stop 32 to send signal hydraulic propeller out of service；Now
One end of axletree is inserted on the sleeve pipe of push rod, and the other end inserts in first group of roll 23, starts hydraulic feed device 1, push rod 12
Axletree heads into the side's of pushing away machine 2, and when axletree is all headed into the side's of pushing away machine 2, push rod stop 13 sends signal, and fuel tank stops advancing
And reset；Axletree proceeds cold rolling operation in the side's of pushing away machine 2, and the axletree of molding ejects, due to huge from chamber, the side of pushing away outlet 212
Inertia, ejects along the side's of pushing away cavity direction, runs into stop device 5 and forming cart axle bumper is lived and bounce back into the splicing of automatic emptying machine 4
On frame 41, blanking stop 44 is signaled to blanking hydraulic pusher 42, and the axletree of molding is put down by blanking hydraulic pusher 42
Row is shifted onto on aggregate rack 43, fork truck be transported to subsequent processing.
Claims (7)
1. five roller gradation type axle push shaping apparatus, it is characterised in that this device is by hydraulic feed device (1), the side's of pushing away machine (2), automatically
Feeder (3), automatic emptying machine (4) and stop device (5) are sequentially connected with composition；The described side's of pushing away machine (2) is by rectangular shaped post shell
Body (22), at least five group rolls (23) and base (24) composition, five groups of rolls (23) are located in housing (22) vertically, constitute by
Circumference fades to chamber, the foursquare side of pushing away (21), and during rolling, cylinder axletree blank rolls into square axle in chamber, the side of pushing away (21),
Base (24) is connected with housing (22), and base (24) is fixed in ground base；Described hydraulic feed device (1) is by connecting rod
(11) being connected with the side's of pushing away machine (2), be placed in the rear of the side's of pushing away machine (2), the push rod (12) of hydraulic feed device (1) promotes axletree blank
The entrance side of pushing away machine (2) rolls；Described automatic charging machine (3) is vertically fixed on hydraulic feed device (1) and the side's of pushing away machine
(2) side of axis, and matched；Described automatic emptying machine (4) is vertically fixed on the one of the side's of pushing away machine (2) front axis
Side, is connected with the side's of pushing away machine (2)；Described stop device (5) is located at automatic emptying machine (4) rear；Described hydraulic feed device
(1), the side's of pushing away machine (2) and stop device (5) be fixed in ground base, its center axis is on the same line.
Five roller gradation type axle push shaping apparatus the most according to claim 1, it is characterised in that described rectangular shaped post housing
(22) charging section on diagonally two jiaos set through hole, connecting rod (11) through through hole will the side's of pushing away machine (2) and hydraulic drive by bolt
Device (1) links together；Set five groups of gradation type rolls (23) in housing (22), leave between two adjacent groups roll (23) setting away from
From interval；Five groups of described roll (23) often groups are made up of, the side of pushing away the fixing axle (231) in four sides of pushing away and four rollers (232)
Fixing axle (231) vertically/be horizontally fixed in the same cross section of housing, four rollers (232) are sleeved on four sides of pushing away and fix axle
On, around the side of pushing away, fixing axle (231) is freely rotatable；Described roller is arranged in order to straight roller from right to left by bowed roller, structure
Becoming to be crossfaded into chamber, the foursquare side of pushing away (21) by circumference, the centre normal in chamber, five groups of sides of pushing away (21) is with in a straight line；Five groups are rolled
The roll forming of roller (23) is different, and its cup depth shortens 20% from first group of roll (23) successively, and the 5th group of roll (23) is flat
Straight roller, height protruding in the middle part of axletree from first group of roll (23) shortens 20% successively, and the 5th group of roll (23) outlet is
Square finished axle.
Five roller gradation type axle push shaping apparatus the most according to claim 1, it is characterised in that described hydraulic feed device
(1) fuel tank, hydraulic cylinder, two connecting rods (11), push rod (12), pusher bar support, control system and push rod stop (13) are included；Institute
Connecting rod (11) one end stated is connected with the side of pushing away captain square column type housing, and the other end is connected with pusher bar support；Described push rod (12)
For cylinder, one end is arranged on pusher bar support and is connected with hydraulic plunger, is placed between two connecting rods, and the other end sets internal diameter and is slightly larger than
The sleeve pipe of axle head external diameter, axle head inserts in sleeve pipe.
Five roller gradation type axle push shaping apparatus the most according to claim 1, it is characterised in that described automatic charging machine (3)
It is made up of stock shelf (31), feeding hydraulic pressure pusher (32)；Described feeding hydraulic pressure pusher (32) is by feeding hydraulic pusher
(321), carrying roller (322) and running mechanism (323) and feeding stop (324) composition, feeding stop (324) is arranged on the side of pushing away
Immediately below the import of chamber；Described feeding hydraulic pusher (321) connects running mechanism (323), and carrying roller (322) is located at running mechanism
(323), on, carrying roller (322) matches with stock shelf (32), chamber, the side of pushing away (21) position.
Five roller gradation type axle push shaping apparatus the most according to claim 1, it is characterised in that described automatic emptying machine (4)
It is made up of splicing frame (41), blanking hydraulic pushing machine (42), aggregate rack (43) and blanking stop (44)；Described splicing frame
(41) being located at outlet (212) side, chamber, the machine side of pushing away of the side of pushing away, height matches with chamber, the side of pushing away (21), and splicing frame (41) sets roller；Institute
The blanking hydraulic pushing machine (42) stated is vertically arranged in splicing frame (41) front, and front end sets the cross bar made by channel-section steel, height with connect
Bin (41) matches；Described aggregate rack (43) is three parallel being configured to propping up of roller, is positioned at splicing frame (41)
Rear, upright position.
Five roller gradation type axle push shaping apparatus the most according to claim 1, it is characterised in that described stop device (5) by
Column (51), square plate (52) and rubber blanket (53) composition；Described column (51) lower end fixes on the ground, square plate
(52) welding/be bolted to column (51) upper end, the center of square plate (51) and chamber (21) center, the machine side of pushing away of the side of pushing away are same
On one straight line；Described rubber blanket (53) is laid on square plate (52).
Five roller gradation type axle push shaping apparatus the most according to claim 6, it is characterised in that described rubber blanket (52)
Planting preferred material is waste tire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610463394.3A CN106077356A (en) | 2016-06-21 | 2016-06-21 | Five roller gradation type axle push shaping apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610463394.3A CN106077356A (en) | 2016-06-21 | 2016-06-21 | Five roller gradation type axle push shaping apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106077356A true CN106077356A (en) | 2016-11-09 |
Family
ID=57252155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610463394.3A Pending CN106077356A (en) | 2016-06-21 | 2016-06-21 | Five roller gradation type axle push shaping apparatus |
Country Status (1)
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| JP2002361322A (en) * | 2001-06-08 | 2002-12-17 | Nakajima Steel Pipe Co Ltd | Method for manufacturing steel square tube and steel square tube |
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| CN202479338U (en) * | 2012-03-28 | 2012-10-10 | 天津市恒兴冶金机械制造有限公司 | Secondary molding unit for converting circular tube into square tube |
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| CN203778585U (en) * | 2014-03-14 | 2014-08-20 | 石家庄高新区天瑞冶金设备有限公司 | Mechanical rolling type roundness-to-square forming machine |
| CN105057357A (en) * | 2015-08-13 | 2015-11-18 | 大连科睿宝重工设备有限公司 | Flexible forming process and machine set for changing circular tube into square tube |
| CN205673501U (en) * | 2016-06-21 | 2016-11-09 | 安徽马钢和菱实业有限公司 | Five roller gradation type axle push shaping apparatus |
-
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- 2016-06-21 CN CN201610463394.3A patent/CN106077356A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08164425A (en) * | 1994-12-13 | 1996-06-25 | Kawasaki Steel Corp | Production of square steel tube |
| JP2002113517A (en) * | 2000-10-10 | 2002-04-16 | Shin Sanko Kokan:Kk | Method for manufacturing electric resistance welded square tube |
| JP2002361322A (en) * | 2001-06-08 | 2002-12-17 | Nakajima Steel Pipe Co Ltd | Method for manufacturing steel square tube and steel square tube |
| CN2734365Y (en) * | 2004-09-17 | 2005-10-19 | 大连三高重工设备有限公司 | Reforming machine set capable of changing round pipe into square pipe |
| CN202097271U (en) * | 2011-05-12 | 2012-01-04 | 江苏界达特异新材料股份有限公司 | Forming machine on production line for changing round pipes into square pipes |
| CN202479338U (en) * | 2012-03-28 | 2012-10-10 | 天津市恒兴冶金机械制造有限公司 | Secondary molding unit for converting circular tube into square tube |
| CN103433302A (en) * | 2013-06-06 | 2013-12-11 | 安徽马钢和菱实业有限公司 | Automobile axle rolling mill feeding device |
| CN203778585U (en) * | 2014-03-14 | 2014-08-20 | 石家庄高新区天瑞冶金设备有限公司 | Mechanical rolling type roundness-to-square forming machine |
| CN105057357A (en) * | 2015-08-13 | 2015-11-18 | 大连科睿宝重工设备有限公司 | Flexible forming process and machine set for changing circular tube into square tube |
| CN205673501U (en) * | 2016-06-21 | 2016-11-09 | 安徽马钢和菱实业有限公司 | Five roller gradation type axle push shaping apparatus |
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Application publication date: 20161109 |