CN108213081A - The cold rolling process of aximal deformation value ultra-thin tube - Google Patents
The cold rolling process of aximal deformation value ultra-thin tube Download PDFInfo
- Publication number
- CN108213081A CN108213081A CN201810255145.4A CN201810255145A CN108213081A CN 108213081 A CN108213081 A CN 108213081A CN 201810255145 A CN201810255145 A CN 201810255145A CN 108213081 A CN108213081 A CN 108213081A
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- feeder
- internal model
- cold
- rolling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
- B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
Abstract
The present invention relates to steel pipe rolling technical field, specially a kind of cold rolling process of aximal deformation value ultra-thin tube.This method is mainly：Steel pipe is sent into cold-rolling mill and is rolled, while steel pipe is kept to be sent into；In the operation of rolling, while keeping steel pipe feeding, rotate steel pipe, under the collective effect of interior external mold, steel pipe subtracts wall tube reducing, forms tube rolling.Using ultra-thin tube produced by the present invention, than using ultra-thin tube better quality made from cold-drawing process in the market, wall thickness is up to 0.15 0.20mm, and inner wall and outer wall are more smooth, impulse- free robustness, and without following process, production efficiency higher has a vast market prospect.
Description
Technical field：
The present invention relates to steel pipe rolling technical field more particularly to a kind of cold rolling process of aximal deformation value ultra-thin tube.
Background technology：
Thin-wall tube is that hollow billet is made with steel ingot or solid pipe billet perforated, and then hot rolled, cold rolling or cold-drawn are made.It is thin
Wall pipe has consequence in China's steel pipe industry.
Cold rolling or solid drawn tube except a point general steel pipe, low Boiler Tube, Hi-pressure Boiler Tube, alloy pipe,
Stainless steel tube, petroleum cracking tube, outside other steel pipes, further include carbon thin-wall steel tube, alloy thin-wall steel pipe, stainless thin-wall steel tube,
Steel tubes.Diameter can arrive 6mm at cold rolling seamless steel, and wall thickness can arrive 0.25mm, and OD of Thin Wall Welded Pipe can arrive 5mm, and wall thickness is less than
0.25mm。
In the prior art, this kind of pipe is divided into cold-rolling process, cold-drawing technology and cold-drawn cold rolling process integration.Cold-drawing technology is
A kind of pulling method, it be by steel pipe from one restriction shape interior external mold coordinate openning in, pull out it is molding, therefore hold
All kinds of problems such as inner wall burr, inner wall coarse are also easy to produce, and in process of tube plug drawing mill, tube wall also more difficult control on metal fluidity
, easily there is the problem of wall unevenness is even in system.Cold rolling is a kind of rolling process, by the cooperation of interior external mold to tube extrusion, per pass
Secondary cast deformation quantity is small, therefore one cold rolled tube of making needs the rolling of multi-pass, although pipe is high-quality, technique is numerous
Multiple, production cost remains high.The way of usual enterprise be preceding road by cold drawing treatment, make the basic machine-shaping of pipe, then
Cold-rolling process is reused, finally makes Pipe forming.This is a kind of scheme of compromise in fact, and the quality of either pipe still produces
Cost all has much room for improvement.
Invention content：
The purpose of the present invention is in view of the drawbacks of the prior art, providing a kind of cold rolling process of aximal deformation value ultra-thin tube,
Eight procedure of the prior art is integrated into a procedure, the ultra-thin tube wall thickness rolled by this method can reach
0.15-0.20mm, far below 0.25mm most thin in the market.
The present invention is achieved through the following technical solutions：A kind of cold rolling process of aximal deformation value ultra-thin tube, including with
Lower step：
A, steel pipe is sent into cold-rolling mill, steel pipe inner wall is made to be nested in internal model, outer wall of steel pipe connects with the annular groove of external mold
It touches, and is sent into steel pipe；
B, the external mold of cold-rolling mill is made to carry out reciprocal rolling to steel pipe, metal occurs for the tube wall for making steel pipe by squeezing action
Flowing occurs tube reducing and subtracts wall；
In the operation of rolling, while steel pipe is kept to be sent into, rotate steel pipe；
The external mold includes symmetrically arranged upper die and lower die, and upper die and lower die are respectively provided with annular groove, and the depth of the annular groove
Degree is gradually deepened in its rolling direction；
The internal model is the shaft of a smooth outer surface, if a diameter of d；Diameter corresponding to the annular groove of external mold is set as
D, then Dmin-d ≯ 2mm.
When cold rolling just starts, since internal model can not form steel pipe inner wall effective reaction force, steel pipe not by
In the case of resistance, outer diameter significantly becomes smaller, and its wall thickness does not change.And work as, the outer diameter of steel pipe changes to the interior of pipe
When wall is in contact with internal model, under the action of external mold, comprehensive mutually extruding just occurs for external mold, steel pipe and internal model, from this
Start, internal model starts the anticaustic inner wall in steel pipe, and steel pipe subtracts the twofold motion of wall from single tube reducing variation for tube reducing, final to make
Into cold rolled tube.Traditional cold-rolling practice, for steel pipe in forming process, every time variable quantity is very little, typically need through
The tandem rolling for crossing multi-pass is realized.And the external mold that the present invention uses has following characteristics, " depth of the annular groove is in its rolling direction
It is upper gradually to deepen ", therefore, in each operation of rolling, extruding force is rapid to increase in a manner of pulse cycle, is equivalent to ancient method
It forges, this has the function of to dramatically speed up for the formation of tube wall, therefore can be realized by single cold rolling.
During the entire process of rolling, the tube reducing of early period is operated since resistance is relatively small, may be used outside reducing
Mould carries out acceleration rolling process, can save the operation of multi-pass in this way, and final product quality is not influenced.
In order to achieve the effect that ultra-thin tube, the present invention carries out special set by calculation formula to the axial cross section of internal model
Meter makes two long sides of the axial cross section of internal model form curve, i.e. the diameter of a circle that the outer profile of internal model cross section is formed becomes
Small rate is gradually reduced, diameter change rate formed parabola, and its diameter change rate always with the annular groove on external mold
Change in depth rate match.
As a preferred embodiment of the above technical solution, the curve is formed by two curve connections, and smoothed in its joining place
It crosses.
As a preferred embodiment of the above technical solution, two curves constitute two sections of rolling, and first segment is large deformation section,
The section is subtracted with tube reducing (i.e. diameter) based on wall (i.e. wall thickness), and second segment is gentle section, and the section is to subtract based on wall, supplemented by tube reducing.
As a preferred embodiment of the above technical solution, this method is full-automatic using one kind of Patent No. CN 106001117A
Steel pipe rolling system is achieved；The Full-automatic steel pipe rolling system includes at least feeder and cold-rolling mill, the feeding
The first pre- feeder and the second pre- feeder are equipped between machine and cold-rolling mill, the first pre- feeder is arranged on the feeder
Discharge end, the second pre- feeder is arranged on the feed end of cold-rolling mill, and the first pre- feeder is equipped with oil filling mechanism,
Steel pipe market is carried out oiling by the feeder to the described first pre- feeder, the steel pipe market after oiling to described second it is pre- on
Material machine is kept in.
As a preferred embodiment of the above technical solution, the described first pre- feeder includes the first loading rack and is arranged on the first charging
The first slideway on frame, the oil filling mechanism are arranged on the feed end of first loading rack；The second pre- feeder includes
Second loading rack and the second slideway being arranged on the second loading rack, the first pre- feeder are equipped with the second pre- feeder
Clamp and swing mechanism and the delivery device for pushing the steel pipe in the first slideway or the second slideway, second loading rack
Discharge end be equipped with movable feed mechanism, steel pipe is sent into cold-rolling mill by the activity feed mechanism with intermittent mode to be rolled
System.
As a preferred embodiment of the above technical solution, the clamp and swing mechanism includes being arranged on the charging of first loading rack
End the first internal model chuck, be arranged on first loading rack discharge end the second internal model chuck, be arranged on it is described second dress
The third internal model chuck of the feed end of rack, be arranged on second loading rack discharge end the 4th internal model chuck, Yi Jilian
Connect the first internal model chuck and the second internal model chuck and the rotating shaft of third internal model chuck and the 4th internal model chuck, the oiling
Centering machine is equipped between mechanism and the first internal model chuck, one end of the rotating shaft extends to form forward guide bar, institute
Guide bar is stated between the first internal model chuck and the oil filling mechanism, the centering machine makes steel pipe by certralizing ability
Axis overlapped with the axis of the guide bar.
As a preferred embodiment of the above technical solution, the centering machine includes centering installing plate, a pair is symmetrical set
Upper transmission arm, a pair of underdrive arm being symmetrical set are arranged on the centring chuck of transmission arm upper end and are articulated with described
The push component of the lower end of underdrive arm, the centering installing plate, which is equipped with, makes the through-hole that steel pipe passes through, the upper transmission arm
Upper end be articulated with it is described centering installing plate on, the upper end of the underdrive arm and the lower end of the upper transmission arm are hinged, it is described on
Transmission arm forms diamond structure with the underdrive arm, and the centring chuck sets up the upper end of transmission arm on described at two and shape separately
Into for clamping the clamping opening of steel pipe.
As a preferred embodiment of the above technical solution, the oil filling mechanism includes mounting bracket, is slidably connected on the mounting bracket
Sliding rack, be hinged on the sliding rack mounting blocks, be fixed in the oiling end of mounting blocks lower end and push the cunning
The Pneumatic assembly that moving frame is slided, the top of the mounting bracket are equipped with limiting plate, and the limiting plate is equipped with sliding slot, the mounting blocks
Upper end be slidably connected in the sliding slot.
As a preferred embodiment of the above technical solution, the sliding slot includes the first sliding groove being obliquely installed with horizontal plane and is parallel to
The second sliding slot of horizontal plane, the first sliding groove form the angle more than 90 ° and less than 180 ° with the second sliding slot；The peace
The upper end of block is filled to the mounting blocks and the line of the hinge joint of sliding rack, with the oiling end to the mounting blocks with sliding
The line of the hinge joint of frame forms the angle more than 90 ° and less than 180 °.
The present invention realizes automatic charging by feeder, steel pipe market to the first pre- feeder is carried out oiling, by oiling
Steel pipe market afterwards to the second pre- feeder is kept in, and waits for cold rolling mill that will immediately be temporarily stored in the after completing a steel pipe
Steel pipe market on two pre- feeders to cold rolling into being rolled, make cold-rolling mill carry out continuous rolling, avoid cold-rolling mill shut down or
Idle running.
Beneficial effects of the present invention：
1st, the present invention produces ultra-thin tube, and realize the molding rolling mill practice of a time using cold-rolling practice, avoids
The rolling of continuous multi-pass；
2nd, using ultra-thin tube made from the method for the present invention, than using ultra-thin tube quality made from cold-drawing process more in the market
Good, wall thickness is up to 0.15-0.20mm, and inner wall and outer wall are more smooth, impulse- free robustness, without following process, tolerance ±
Within 0.01mm；
3rd, high degree of automation of the present invention can realize automation feeding, oiling, temporary and rolling, realize cold-rolling mill
Continuous rolling, avoid cold-rolling mill causes multiple start and stop or idle running when expecting because lacking, improve production efficiency.
Description of the drawings：
Fig. 1 is the structure diagram that the method for the present invention relies on equipment；
Fig. 2 is the structure diagram of feeder；
Fig. 3 is the structure diagram of oil filling mechanism；
Fig. 4 is the structure diagram of centering machine；
Fig. 5 is the structure diagram of expeller and pusher pusher dog；
Fig. 6 is the attachment structure schematic diagram of pusher pusher dog and rotating shaft；
Fig. 7 is the structure diagram of movable feed mechanism；
Fig. 8 is the vertical view of movable feed mechanism；
Fig. 9 is the attachment structure schematic diagram of fixed feed mechanism；
Figure 10 is the structure diagram of internal model；
In figure：10- feeders, 1- loading frames, 2-V shape slots, 3- steel pipe delivery devices, 31- push framves, 32- drive chains,
33- pushing pieces, 331- insertion sections, 34- protective covers, 4- stoppers, 5- transition frames, 6- steel pipe supporting mechanisms, 61- support blocks, 62-
Swing arm, 63- STATEMENT OF FEDERALLY SPONSOREDs, 64- hinged seats, 65- drive components, 7- sensors, the first pre- feeders of 20-, 201- oil filling mechanisms,
2011- mounting brackets, 2012- sliding racks, 2013- mounting blocks, 2014- oilings end, 2015- Pneumatic assemblies, 2016- limiting plates,
2017- sliding slots；202- centering machines, 2021- centering installing plates, the upper transmission arms of 2022-, 2023- underdrive arms, 2024- centering
Collet, 2025- push components, 203- the first internal model chucks, 204- delivery devices, 2041- expellers, 2042- pusher pusher dogs,
2043- buckling parts, 205- the second internal model chucks, 206- guide bars, the second pre- feeders of 30-, 301- third internal model chucks, 302-
4th internal model chuck, 303- activity feed mechanisms, the first fixed frames of 3031-, 3032- installing arms, 3033- telescopic components, 3034-
First is sent into wheel, 3035- driving motors, 3036- transmission gears, 304- fixation feed mechanisms, the second fixed frames of 3041-, 3042-
Second is sent into wheel, 40- cold-rolling mills, 4011- large deformation sections, the gentle sections of 4012-.
Specific embodiment：
The present invention is further detailed below in conjunction with attached drawing.
Present embodiment is only explanation of the invention, is not limitation of the present invention, art technology
Personnel can as needed make the present embodiment modification after this specification is read, but as long as in the claim of the present invention
In the range of all protected by Patent Law.The direction term that the present invention is previously mentioned, for example, " on ", " under ", "front", "rear", "
A left side ", " right side ", " top ", " bottom " etc. are only the directions with reference to annexed drawings.Therefore, the direction term used is to illustrate and manage
Solution is of the invention rather than to limit the present invention.
The present invention provides a kind of cold rolling process of aximal deformation value ultra-thin tube, includes the following steps：
A, steel pipe is sent into cold-rolling mill, steel pipe inner wall is made to be nested in internal model, outer wall of steel pipe connects with the annular groove of external mold
It touches, and is sent into steel pipe；
B, the external mold of cold-rolling mill is made to carry out reciprocal rolling to steel pipe, metal occurs for the tube wall for making steel pipe by squeezing action
Flowing occurs tube reducing and subtracts wall；
In the operation of rolling, while steel pipe is kept to be sent into, rotate steel pipe；
The external mold includes symmetrically arranged upper die and lower die, and upper die and lower die are respectively provided with annular groove, and the depth of the annular groove
Degree is gradually deepened in its rolling direction；
The internal model is the shaft of a smooth outer surface, if a diameter of d；Diameter corresponding to the annular groove of external mold is set as
D, then Dmin-d ≯ 2mm.
Internal model as shown in Figure 10, two long sides composition curve of the axial cross section of the internal model, i.e. internal model cross section
The rate that the diameter of a circle that outer profile is formed becomes smaller is gradually reduced.The curve is formed by two curve connections, and in its rank
The place of connecing seamlessly transits.Two curves constitute two sections of rolling, and first segment is large deformation section 4011, which subtracts wall with tube reducing
Based on, second segment is gentle section 4012, and the section is to subtract based on wall, supplemented by tube reducing.
As shown in Figure 1, a kind of Full-automatic steel pipe rolling system, is to implement a kind of system used required for the above method；
It includes feeder 10 and cold-rolling mill 40, and it is pre- that the first pre- feeder 20 and second is equipped between the feeder 10 and cold-rolling mill 40
Feeder 30, the first pre- feeder 20 are arranged on the discharge end of the feeder 10, and the second pre- feeder 30 is set
In the feed end of cold-rolling mill 40, the first pre- feeder 20 is equipped with oil filling mechanism 201, and the feeder 10 is by steel pipe market
Oiling is carried out to the described first pre- feeder 20, the steel pipe market after oiling is kept in the described second pre- feeder 30.
First pre- feeder 20 includes the first loading rack and the first slideway being arranged on the first loading rack, the oiling machine
Structure 201 is arranged on the feed end of first loading rack.The second pre- feeder 30 includes the second loading rack and is arranged on the
The second slideway on two loading racks, the first pre- 20 and second pre- feeder 30 of feeder are equipped with clamp and swing mechanism and use
In the delivery device 204 of steel pipe of the push in the first slideway or the second slideway, the discharge end of second loading rack is equipped with
Movable feed mechanism 303, steel pipe is sent into cold-rolling mill 40 by the activity feed mechanism 303 with intermittent mode to be rolled.Make
Steel pipe inner wall is nested in the internal model of cold-rolling mill 40, and outer wall of steel pipe is in contact with the annular groove of external mold, and is sent into steel pipe；Cold-rolling mill
40 external mold and internal model carries out steel pipe reciprocal rolling, and metal flow occurs for the tube wall for making steel pipe by squeezing action, occurs
Tube reducing subtracts wall；In the operation of rolling, while steel pipe is kept to be sent into, steel pipe is made constantly to rotate, so as to gradually obtain 0.15-
The ultra-thin tube of 0.20mm.
Clamp and swing mechanism includes being arranged on the first internal model chuck 203 of the feed end of first loading rack, be arranged on
In second internal model chuck 205 of the discharge end of first loading rack, the third for the feed end for being arranged on second loading rack
Mould chuck 301 is arranged on the 4th internal model chuck 302 of discharge end of second loading rack and connection first internal model
203 and second internal model chuck 205 of chuck and the rotating shaft of third internal model chuck 301 and the 4th internal model chuck 302, the oiling machine
Centering machine 202 is equipped between structure 201 and the first internal model chuck 203, one end of the rotating shaft, which extends to form forward, leads
Draw bar 206, the guide bar 206 is between the first internal model chuck 203 and the oil filling mechanism 201, the centring machine
Structure 202 makes the axis of steel pipe be overlapped with the axis of the guide bar 206 by certralizing ability.
Shown as shown in Figure 1, Figure 3 and Figure 4, centering machine 202 is arranged on the oil filling mechanism 201 and the first internal model chuck
Between 203, one end of the rotating shaft extends to form forward guide bar 206, and the guide bar 206 is located at the first internal model card
Between disk 203 and the oil filling mechanism 201.The centering machine 202 makes the axis of steel pipe and the guiding by certralizing ability
The axis of bar 206 overlaps.Centering machine 202 include centering installing plate 2021, a pair of upper transmission arm 2022 being symmetrical set,
Underdrive arm 2023 that a pair is symmetrical set is arranged on the centring chuck 2024 of 2022 upper end of transmission arm and is articulated with institute
The push component 2025 of the lower end of underdrive arm 2023 is stated, push component 2025 is cylinder, hydraulic cylinder etc..Centering installing plate 2021
Being equipped with makes the through-hole that steel pipe passes through, and the upper end of upper transmission arm 2022 is articulated on the centering installing plate 2021, is passed under described
The upper end of swing arm 2023 and the lower end of the upper transmission arm 2022 are hinged, the upper transmission arm 2022 and the underdrive arm 2023
Diamond structure is formed, the centring chuck 2024 sets up the upper end of transmission arm 2022 on two separately and formed to clamp steel pipe
Clamping opening.
As shown in figures 1 and 3, oil filling mechanism 201 includes mounting bracket 2011, is slidably connected on the mounting bracket 2011
Sliding rack 2012, the mounting blocks 2013 being hinged on the sliding rack 2012, the oiling end for being fixed in 2013 lower end of mounting blocks
2014 and Pneumatic assembly 2015 that the sliding rack 2012 is pushed to slide, Pneumatic assembly 2015 is cylinder.The mounting bracket
2011 top is equipped with limiting plate 2016, and the limiting plate 2016 is equipped with sliding slot 2017, and the upper end of the mounting blocks 2013 is slided
It is dynamic to be connected in the sliding slot 2017.Sliding slot 2017 includes the first sliding groove being obliquely installed with horizontal plane and is parallel to horizontal plane
Second sliding slot, the first sliding groove form the angle more than 90 ° and less than 180 ° with the second sliding slot.Mounting blocks 2013 it is upper
The line of the mounting blocks 2013 and the hinge joint of sliding rack 2012 is held, the mounting blocks are arrived with the oiling end 2014
2013 form the angle more than 90 ° and less than 180 ° with the line of the hinge joint of sliding rack 2012.
As shown in Fig. 1, Fig. 5 and Fig. 6, delivery device 204 includes the transmission chain along steel pipe market directional spreding, driving passes chain
Mobile sprocket wheel and the drive sprocket decelerating motor rotated and the expeller 2041 being fixed on transmission chain, the expeller
2041 are equipped with the pusher pusher dog 2042 being located above slideway, and the pusher pusher dog 2042 is articulated on the expeller 2041,
The lower part of the pusher pusher dog 2042, which is equipped with, is fastened on buckling parts 2043 on the rotating shaft, the buckling parts 2043 be equipped with
The guide groove of the rotating shaft surface engagement, the non-push end of the buckling parts 2043 are equipped with the inclined-plane for entering slideway convenient for steel pipe.
As shown in Fig. 1, Fig. 6, Fig. 7 and Fig. 8, movable feed mechanism 303 with intermittent mode by steel pipe be sent into cold-rolling mill in into
Row rolling.Movable feed mechanism 303 includes that the first fixed frame 3031 being fixed on the second loading rack, to be hinged on described first solid
Determine a pair of of installing arm 3032 on frame 3031, push the telescopic component 3033 of the rotation of installing arm 3032 and be arranged on installing arm 3032
On first be sent into wheel 3034 and driving it is described first be sent into wheel 3034 rotation driving motors 3035.Installing arm 3032 is hinged
One end on first fixed frame 3031 is connected with transmission gear 3036, transmission gear 3036 and adjacent installing arm 3032
On transmission gear 3036 engage.For cylinder, hydraulic cylinder etc., one end of telescopic component 3033 is hinged on described telescopic component 3033
On first fixed frame 3031, the other end is hinged in the installing arm 3032, and the telescopic component 3033 pushes the installing arm
3032 rotate to control the described two first spacing for being sent into wheel 3034.
The discharge end of second loading rack is additionally provided with fixed feed mechanism 304, and the fixed feed mechanism 304 is arranged on described
Movable 303 rear of feed mechanism.
As shown in figure 9, fixed feed mechanism 304 includes the second fixed frame 3041 and is connected on the second fixed frame 3041 to use
Wheel 3042 is sent into a pair second for being clamped in steel pipe both sides, two second spacing for being sent into wheel 3042 are kept in feeding process
It is constant.
As shown in Fig. 2, feeder includes loading frame 1, V-shaped groove 2 and steel pipe delivery device 3.Loading frame 1 is to be obliquely installed,
Height of the loading frame far from 2 side of V-shaped groove is higher than loading frame 1 close to the height of 2 side of V-shaped groove.Loading frame 1 is close to V-shaped groove 2
Side is equipped with the stopper 4 that blocking steel pipe enters in V-shaped groove 2.Transition frame 5, transition frame 5 are equipped between V-shaped groove 2 and stopper 4
To be obliquely installed, inclined direction is consistent with 1 inclined direction of loading frame.The upper surface of transition frame 5 higher than V-shaped groove 2 notch or
It is flushed with the notch of V-shaped groove 2.The lower section of V-shaped groove 2 is equipped with sensor 7.
Loading frame 1 is equipped with steel pipe supporting mechanism 6, and the steel pipe at stopper 4 is held up, made by steel pipe supporting mechanism 6
Steel pipe enters V-shaped groove 2.Steel pipe supporting mechanism 6 includes support block 61, the swing arm 62 that drive support block 61 moves up and down and driving pendulum
The drive component 65 that arm 62 is swung.The middle part of swing arm 62 is articulated with the lower section of loading frame 1, and support block 61 is fixed in the upper of swing arm 62
End, drive component 65 move up and down support block 61 by acting on the lower end of swing arm 62.Steel pipe supporting mechanism 6 is at least provided with two
Group, and to be arranged at intervals, STATEMENT OF FEDERALLY SPONSORED 63 is equipped between two adjacent groups steel pipe supporting mechanism 6, the lower end of swing arm 62 is articulated with linkage
On part 63, STATEMENT OF FEDERALLY SPONSORED 63 is connect with drive component 65.The end of STATEMENT OF FEDERALLY SPONSORED 63 is equipped with hinged seat 64, hinged seat 64 and drive component
65 is hinged, and drive component 65 can be cylinder or hydraulic cylinder.
Steel pipe delivery device 3 includes push frame 31, the pushing piece 33 moved along push frame 31 and driving pushing piece 33 and moves
Drive chain 32, drive chain 32 is by motor-driven rotation.V-shaped groove 2 is fixed on push frame 31, and one end of pushing piece 33 is connected to
On drive chain 32, the other end of pushing piece 33 is arranged on the top of V-shaped groove 2, pushes the steel pipe movement being located in V-shaped groove 2.Push
Part 33 is equipped with insertion section 331, and insertion section 331 is used to plug in the steel pipe in V-shaped groove 2 to push steel pipe movement.It pushes away
Frame 31 is sent to be equipped with the protective cover 34 for being provide with drive chain 32.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that those of ordinary skill in the art are come
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.
Claims (10)
1. a kind of cold rolling process of aximal deformation value ultra-thin tube, which is characterized in that include the following steps：
A, steel pipe to be sent into cold-rolling mill, steel pipe inner wall is made to be nested in internal model, outer wall of steel pipe is in contact with the annular groove of external mold, and
It is sent into steel pipe；
B, the external mold of cold-rolling mill is made to carry out reciprocal rolling to steel pipe, metal stream occurs for the tube wall for making steel pipe by squeezing action
It is dynamic, tube reducing occurs and subtracts wall；
In the operation of rolling, while steel pipe is kept to be sent into, rotate steel pipe；
The external mold includes symmetrically arranged upper die and lower die, and upper die and lower die are respectively provided with annular groove, and the depth of the annular groove exists
Gradually deepen in its rolling direction；
The internal model is the shaft of a smooth outer surface, if a diameter of d；Diameter corresponding to the annular groove of external mold is set as D, and
Dmin-d≯2mm。
2. the cold rolling process of aximal deformation value ultra-thin tube according to claim 1, it is characterised in that：The axial direction of the internal model
Two long sides in section form curve, i.e. the rate that the diameter of a circle that the outer profile of internal model cross section is formed becomes smaller gradually subtracts
It is small.
3. the cold rolling process of aximal deformation value ultra-thin tube according to claim 2, it is characterised in that：The curve is by two
Curve connection forms, and is seamlessly transitted in its joining place.
4. the cold rolling process of aximal deformation value ultra-thin tube according to claim 3, it is characterised in that：Two curve structures
Into two sections of rolling, first segment is large deformation section, which is subtracted with tube reducing based on wall, and second segment is gentle section, and the section is to subtract wall
Based on, supplemented by tube reducing.
5. the cold rolling process of aximal deformation value ultra-thin tube according to claim 1, it is characterised in that：This method is using complete
Automatic steel tube rolling system is achieved；The Full-automatic steel pipe rolling system includes at least feeder (10) and cold-rolling mill
(40), the first pre- feeder (20) and the second pre- feeder (30), institute are equipped between the feeder (10) and cold-rolling mill (40)
The discharge end that the first pre- feeder (20) is arranged on the feeder (10) is stated, the second pre- feeder (30) is arranged on cold rolling
The feed end of machine (40), the first pre- feeder (20) are equipped with oil filling mechanism (201), and the feeder (10) is defeated by steel pipe
It is sent to the described first pre- feeder (20) and carries out oiling, the steel pipe market after oiling to the described second pre- feeder (30) carries out temporary
It deposits.
6. the cold rolling process of aximal deformation value ultra-thin tube according to claim 5, it is characterised in that：The first pre- feeding
Machine (20) includes the first loading rack and the first slideway being arranged on the first loading rack, and the oil filling mechanism (201) is arranged on institute
State the feed end of the first loading rack；The second pre- feeder (30) is including the second loading rack and is arranged on the second loading rack
Second slideway, the first pre- feeder (20) are equipped with clamp and swing mechanism and for pushing position with the second pre- feeder (30)
In the delivery device (204) of the steel pipe in the first slideway or the second slideway, the discharge end of second loading rack is sent equipped with activity
Into mechanism (303), steel pipe is sent into cold-rolling mill (40) by the activity feed mechanism (303) with intermittent mode to be rolled.
7. the cold rolling process of aximal deformation value ultra-thin tube according to claim 6, it is characterised in that：The clamping turn-around machine
Structure includes being arranged on the first internal model chuck (203) of the feed end of first loading rack, is arranged on first loading rack
Second internal model chuck (205) of discharge end, be arranged on second loading rack feed end third internal model chuck (301), set
Put the discharge end of second loading rack the 4th internal model chuck (302) and connection the first internal model chuck (203) with
The rotating shaft of second internal model chuck (205) and third internal model chuck (301) and the 4th internal model chuck (302), the oil filling mechanism
(201) centering machine (202) is equipped between the first internal model chuck (203), one end of the rotating shaft extends forward shape
Into guide bar (206), the guide bar (206) positioned at the first internal model chuck (203) and the oil filling mechanism (201) it
Between, the centering machine (202) makes the axis of steel pipe be overlapped with the axis of the guide bar (206) by certralizing ability.
8. the cold rolling process of aximal deformation value ultra-thin tube according to claim 7, it is characterised in that：The centering machine
(202) it is symmetrical set including centering installing plate (2021), a pair of upper transmission arm (2022) being symmetrical set, a pair
Underdrive arm (2023), the centring chuck (2024) for being arranged on transmission arm (2022) upper end and it is articulated with the underdrive arm
(2023) the push component (2025) of lower end, the centering installing plate (2021), which is equipped with, makes the through-hole that steel pipe passes through, described
The upper end of upper transmission arm (2022) is articulated on the centering installing plate (2021), the upper end of the underdrive arm (2023) and institute
The lower end for stating transmission arm (2022) is hinged, and the upper transmission arm (2022) forms diamond shape knot with the underdrive arm (2023)
Structure, the centring chuck (2024) set up the upper end of transmission arm (2022) on described at two separately and form folder for clamping steel pipe
Mouthful.
9. the cold rolling process of aximal deformation value ultra-thin tube according to claim 8, it is characterised in that：The oil filling mechanism
(201) including mounting bracket (2011), the sliding rack (2012) being slidably connected on the mounting bracket (2011), be hinged on the cunning
Mounting blocks (2013) in moving frame (2012), the oiling end (2014) for being fixed in mounting blocks (2013) lower end and described in pushing
The Pneumatic assembly (2015) that sliding rack (2012) slides, the top of the mounting bracket (2011) is equipped with limiting plate (2016), described
Limiting plate (2016) is equipped with sliding slot (2017), and the upper end of the mounting blocks (2013) is slidably connected at the sliding slot (2017)
It is interior.
10. the cold rolling process of aximal deformation value ultra-thin tube according to claim 9, it is characterised in that：The sliding slot
(2017) including the first sliding groove that is obliquely installed with horizontal plane and the second sliding slot for being parallel to horizontal plane, the first sliding groove and institute
State the angle that second sliding slot forms more than 90 ° and is less than 180 °；The upper end of the mounting blocks (2013) is to the mounting blocks
(2013) with the line of the hinge joint of sliding rack (2012), with the oiling end (2014) to the mounting blocks (2013) with it is sliding
The line of the hinge joint of moving frame (2012) forms the angle more than 90 ° and less than 180 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810255145.4A CN108213081A (en) | 2018-03-27 | 2018-03-27 | The cold rolling process of aximal deformation value ultra-thin tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810255145.4A CN108213081A (en) | 2018-03-27 | 2018-03-27 | The cold rolling process of aximal deformation value ultra-thin tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108213081A true CN108213081A (en) | 2018-06-29 |
Family
ID=62660102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810255145.4A Pending CN108213081A (en) | 2018-03-27 | 2018-03-27 | The cold rolling process of aximal deformation value ultra-thin tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108213081A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2616690B1 (en) * | 1987-06-17 | 1994-12-09 | Westinghouse Electric Corp | COLD ROLLING MACHINE WITH PILGRIMS |
| CN101234397A (en) * | 2007-01-29 | 2008-08-06 | 杨连明 | Cold rolling coning pipe fitting mold |
| CN101687232A (en) * | 2007-12-05 | 2010-03-31 | 住友金属工业株式会社 | Method for producing ultra thin wall metallic tube by cold rolling method |
| CN102365136A (en) * | 2009-04-03 | 2012-02-29 | 住友金属工业株式会社 | Method of manufacturing ultra-thin-walled seamless metal tube by cold rolling method |
| CN204544970U (en) * | 2015-03-31 | 2015-08-12 | 湖州至诚精密金属科技有限公司 | Aximal deformation value finish rolling pipe process units |
| CN106001117A (en) * | 2016-07-13 | 2016-10-12 | 湖州至诚精密金属科技有限公司 | Full-automatic steel tube rolling system |
-
2018
- 2018-03-27 CN CN201810255145.4A patent/CN108213081A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2616690B1 (en) * | 1987-06-17 | 1994-12-09 | Westinghouse Electric Corp | COLD ROLLING MACHINE WITH PILGRIMS |
| CN101234397A (en) * | 2007-01-29 | 2008-08-06 | 杨连明 | Cold rolling coning pipe fitting mold |
| CN101687232A (en) * | 2007-12-05 | 2010-03-31 | 住友金属工业株式会社 | Method for producing ultra thin wall metallic tube by cold rolling method |
| CN102365136A (en) * | 2009-04-03 | 2012-02-29 | 住友金属工业株式会社 | Method of manufacturing ultra-thin-walled seamless metal tube by cold rolling method |
| CN204544970U (en) * | 2015-03-31 | 2015-08-12 | 湖州至诚精密金属科技有限公司 | Aximal deformation value finish rolling pipe process units |
| CN106001117A (en) * | 2016-07-13 | 2016-10-12 | 湖州至诚精密金属科技有限公司 | Full-automatic steel tube rolling system |
Non-Patent Citations (2)
| Title |
|---|
| 白连海等: "我国冷轧管设备工艺技术的发展", 《钢管》 * |
| 眭本才: "周期式二辊冷轧管机芯棒设计探讨", 《钢管》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106001117B (en) | A kind of Full-automatic steel pipe rolling system | |
| CN103357696A (en) | Production manufacturing process of large-diameter copper-nickel alloy seamless pipe | |
| CN111151580B (en) | Automatic loading and unloading manipulator for rolled tube core rods | |
| CN210907528U (en) | Car pipe fitting processing is with equipment of bending fast | |
| CN104511495B (en) | The processing method that a kind of thin-walled strip prepares square tube | |
| CN102350445A (en) | Cold-drawing machine for seamless steel tube | |
| CN105268793A (en) | Spiral pipe bending machine and pipe bending method | |
| CN116833237B (en) | Three-roller rotary rolling production line of thin-wall metal tube blank difficult to deform | |
| CN114871297A (en) | Gantry type bending forming machine for large straight welded pipe and forming method thereof | |
| CN101172287A (en) | Limiting core rod cold drawn tube technique and equipment thereof | |
| CN214321580U (en) | Steel pipe protection device for steel pipe straightening machine | |
| CN108213081A (en) | The cold rolling process of aximal deformation value ultra-thin tube | |
| CN219881014U (en) | Automatic flanging equipment for lining oil pipe | |
| CN210412231U (en) | Pipe two-end necking processing machine tool | |
| CN203649185U (en) | Metal pipe riveting port forming machine | |
| CN107583954A (en) | Hot pull tandem rolling tubulation production line and pipe-making method | |
| CN108405621A (en) | The cold rolling process of heavy caliber hyper-thick pipe pipe | |
| CN215543778U (en) | Cold drawing machine for seamless steel tube | |
| CN101116878A (en) | Cold drawing accurate steel tube wall thickness adjusting mechanism | |
| CN210059361U (en) | Metal draws in succession self-adaptation regulation draw-off gear | |
| CN114683398A (en) | Precast concrete component and pouring device thereof | |
| CN1775417A (en) | Large-diameter water-cooled centrifugal pipe-casting machine | |
| CN108465701A (en) | The cold rolling process of interior special pipe double roller mould for cold milling, processing method and interior special pipe | |
| CN102974633B (en) | Swell-shrink drawing molding process and device for reducing pipes | |
| CN208275953U (en) | A kind of prestressed steel bar automatic drawing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |
|
| RJ01 | Rejection of invention patent application after publication |