CN103831354B - Utilize set of molds by compressing for the cylinder type hollow pipe device for conical pipe and production method - Google Patents
Utilize set of molds by compressing for the cylinder type hollow pipe device for conical pipe and production method Download PDFInfo
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- CN103831354B CN103831354B CN201310756934.3A CN201310756934A CN103831354B CN 103831354 B CN103831354 B CN 103831354B CN 201310756934 A CN201310756934 A CN 201310756934A CN 103831354 B CN103831354 B CN 103831354B
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Abstract
The present invention relates to the use of set of molds by compressing for the cylinder type hollow pipe device for conical pipe and production method, wherein mold block one, mold block two, mold block three, the through hole of taper it is both provided with in the middle of in mold block four and mold block five, mold block one, mold block two, mold block three, mold block four, mold block five rearranges set of molds from top to bottom, a up-narrow and down-wide conical through-hole is formed in the middle of set of molds, set of molds is arranged on base, base is placed on the table, hydraulic cylinder is provided below lower compression leg, lower compression leg is the cylindrical structure of hollow, lower compression leg is provided below lower platen, circular hole it is provided with on lower platen, circular hole on lower platen is oppositely arranged with the cavity in lower compression leg, the side of lower compression leg is additionally provided with fixing chain.Present configuration is simple, easy to use, seamless processing, only need on the tube wall of processed pipe coating lubricating oil, it is not necessary to high temperature, save the energy, the conical pipe intensity processed is big, and service life is long.
Description
Technical field
The present invention relates to a kind of utilize set of molds by compressing for the cylinder type hollow pipe device for conical pipe and
Production method, is applied to process ribbon conveyer upper conical rod conical pipe.
Background technology
In prior art, the conical pipe generally steel plate crimping of the upper conical rod of ribbon conveyer is welded,
So conical pipe not only processing difficulties through welding wastes time and energy, and appearance is rough attractive in appearance, and weld seam holds
The generation causing peril easy to crack, service life is short, and maintenance is changed frequently.
Summary of the invention
The technical problem to be solved is to overcome the deficiencies in the prior art, it is provided that one utilizes set of molds
By compressing for the cylinder type hollow pipe device for conical pipe and production method, the present invention solves its technical problem
The structure of the technical scheme is that present invention includes mold block one, mold block two, mold block three, mould
Tool block four, mold block five, mould plug, handle, by mold block one, mold block two, mold block three, mould
Tool block four and the set of molds of mold block five composition, hydraulic cylinder, lower compression leg, lower platen, fixing chain, hydraulic pressure
Machine, base, workbench, control panel, wherein mold block one, mold block two, mold block three, mold block
Four and mold block five in the middle of be both provided with the through hole of taper, the upper surface of mold block one is provided with groove A,
Being provided with protruding A on the lower surface of mold block one, the upper surface of mold block two is provided with groove B, mold block two
Lower surface on be provided with protruding B, the upper surface of mold block three is provided with groove C, the lower surface of mold block three
On be provided with protruding C, the upper surface of mold block four is provided with groove D, the lower surface of mold block four is provided with
Protruding D, the upper surface of mold block five is provided with groove E, and the lower surface of mold block five is provided with protruding E,
Mold block one, mold block two, mold block three, mold block four, mold block five material use hard metal and
Alloy is made, it is characterised in that the protruding A on mold block one lower surface and the groove on mold block two upper surface
B matches, and the protruding B on mold block two lower surface matches with the groove C on mold block three upper surface,
Protruding C on mold block three lower surface matches with the groove D on mold block four upper surface, mold block four times
Protruding D on end face matches with the groove E on mold block five upper surface, convex on mold block five lower surface
Play E to match with the groove on base, the bottom diameter of mold block one inner via hole and mold block two inner via hole
Upper-end inner diameter is equal, and the bottom diameter of mold block two inner via hole is equal with the upper-end inner diameter of mold block three inner via hole,
The bottom diameter of mold block three inner via hole is equal with the upper-end inner diameter of mold block four inner via hole, logical in mold block four
The bottom diameter in hole is equal with the upper-end inner diameter of mold block five inner via hole, mold block one, mold block two, mould
Block three, mold block four, mold block five rearrange set of molds from top to bottom, form one in the middle of set of molds
Individual up-narrow and down-wide conical through-hole, set of molds is arranged on base, and base is placed on the table, hydraulic cylinder
Lower compression leg is provided below, and lower compression leg is the cylindrical structure of hollow, and lower compression leg is provided below lower platen,
Being provided with circular hole on lower platen, the circular hole on lower platen is oppositely arranged with the cavity in lower compression leg, lower compression leg
Side is additionally provided with fixing chain.
Utilize set of molds that compressing for the cylinder type hollow pipe device for conical pipe is produced the producer of conical pipe
Method, its production method step is:
1), first by base it is positioned on workbench and is in the underface of hydraulic cylinder, take external diameter≤mold block
The cylinder type hollow pipe of five lower end maximum inner diameters one, then cylinder type hollow pipe is placed on base；
2), on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, mold block five is placed on cylinder
The upper end of shape hollow pipe, balances and just puts, and operation control panel opens hydraulic press, hydraulic cylinder drive lower compression leg and
Lower platen moves down, and the upper end of cylinder type hollow pipe extend in the circular hole in the middle of lower compression leg simultaneously, passes through hydraulic pressure
Mold block five is depressed into the bottom of cylinder type hollow pipe by the pressure of cylinder；
3), after mold block five is depressed into cylinder type hollow pipe bottom, hydraulic cylinder moves, drives lower compression leg simultaneously
And move on lower platen, on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil the most again, be coated with after wiping
Mold block four is placed on the upper end of cylinder type hollow pipe, balances and just put, hydraulic cylinder drive lower compression leg and under press
Plate moves down, and the upper end of cylinder type hollow pipe extend in the circular hole in the middle of lower compression leg simultaneously, by hydraulic cylinder
Mold block four is depressed into the upper end of mold block five by pressure；
4), when the lower end of mold block four is depressed into and is closely connected with mold block five upper end, hydraulic cylinder moves,
Drive simultaneously and move on lower compression leg and lower platen, on the tube wall of cylinder type hollow pipe, smear last layer profit the most again
Lubricating oil, is coated with the upper end that mold block three is placed on after wiping cylinder type hollow pipe, balances and just put, hydraulic cylinder band
Dynamic lower compression leg and lower platen move down, and the upper end of cylinder type hollow pipe extend in the circular hole in the middle of lower compression leg simultaneously,
By the pressure of hydraulic cylinder, mold block three is depressed into the upper end of mold block four；
5), when the lower end of mold block three is depressed into and is closely connected with mold block four upper end, hydraulic cylinder moves,
Drive simultaneously and move on lower compression leg and lower platen, on the tube wall of cylinder type hollow pipe, smear last layer profit the most again
Lubricating oil, is coated with the upper end that mold block two is placed on after wiping cylinder type hollow pipe, balances and just put, hydraulic cylinder band
Dynamic lower compression leg and lower platen move down, and the upper end of cylinder type hollow pipe extend in the circular hole in the middle of lower compression leg simultaneously,
By the pressure of hydraulic cylinder, mold block two is depressed into the upper end of mold block three；
6), when the lower end of mold block two is depressed into and is closely connected with mold block three upper end, hydraulic cylinder moves,
Drive simultaneously and move on lower compression leg and lower platen, on the tube wall of cylinder type hollow pipe, smear last layer profit the most again
Lubricating oil, is coated with the upper end that mold block one is placed on after wiping cylinder type hollow pipe, balances and just put, hydraulic cylinder band
Dynamic lower compression leg and lower platen move down, and the upper end of cylinder type hollow pipe extend in the circular hole in the middle of lower compression leg simultaneously,
By the pressure of hydraulic cylinder, mold block one is depressed into the upper end of mold block two, the cylinder type hollow pipe in set of molds
I.e. it is pressed and is shaped to conical pipe；
7), at hydraulic cylinder dip mold tool block, for the moment the lower end of fixing chain is hung over the hand on mold block one sidewall
At handle, after suppressing mold block one, on hydraulic cylinder, fixing chain driven mold group and set of molds are crossed by Mobile Communication
The conical pipe one being pressed shaping ibid moves, and is then taken out by base, mould plug is positioned over mold block one
Endoporus upper end, hydraulic cylinder moves down, and the conical pipe of machine-shaping is released and break away from moulds by dip mold tool plug
Group, just can obtain finished product conical pipe.
Operation principle: by the dip mold tool block of repeatedly colding pressing of hydraulic cylinder, cylinder type hollow pipe is pressed into cone
Shape pipe, owing to pressure makes cylinder type hollow pipe crimp, the aspect ratio processing of the conical pipe of machine-shaping
The height of cylinder type hollow pipe before exceeds 2cm-5cm.
The invention has the beneficial effects as follows, present configuration is simple, easy to use, can be by cylinder type hollow pipe one
Secondary machine-shaping is conical pipe, seamless processing, is cold presswork in process, only need to be in processed pipe
Tube wall on coating lubricating oil, it is not necessary to high temperature, save the energy, the conical pipe intensity processed is big, uses the longevity
Life is long.
Accompanying drawing explanation
Fig. 1: embodiment of the present invention set of molds cross-sectional view.
Fig. 2: embodiment of the present invention set of molds side structure schematic diagram.
Fig. 3: embodiment of the present invention set of molds Facad structure schematic diagram.
Fig. 4: embodiment of the present invention mold block one above structure schematic diagram.
Fig. 5: embodiment of the present invention mold block one structural representation below.
Fig. 6: embodiment of the present invention mold block two above structure schematic diagram.
Fig. 7: embodiment of the present invention mold block two structural representation below.
Fig. 8: embodiment of the present invention mold block three above structure schematic diagram.
Fig. 9: embodiment of the present invention mold block three structural representation below.
Figure 10: embodiment of the present invention mold block four above structure schematic diagram.
Figure 11: embodiment of the present invention mold block four structural representation below.
Figure 12: embodiment of the present invention mold block five above structure schematic diagram.
Figure 13: embodiment of the present invention mold block five structural representation below.
Figure 14: embodiment of the present invention tapered tube configuration schematic diagram.
Figure 15: embodiment of the present invention mould stopper structure schematic diagram.
Figure 16: embodiment of the present invention set of molds and hydraulic press integrated structure schematic diagram.
In figure: mold block 1, mold block 22, mold block 33, mold block 44, mold block 55, mould
Tool plug 6, handle 7, by mold block 1, mold block 22, mold block 33, mold block 44 and mould
The set of molds 8 of block 55 composition, hydraulic cylinder 9, lower compression leg 10, lower platen 11, fixing chain 12, hydraulic pressure
Machine 13, base 14, workbench 15, control panel 16, conical pipe 17.
Detailed description of the invention
It is described with reference to the present invention is made detailed description in detail below.As shown in drawings, the present invention utilizes
Compressing for the cylinder type hollow pipe production method for conical pipe, production method step are by set of molds:
1), first by base 14 it is positioned on workbench 15 and is in the underface of hydraulic cylinder 9, take external diameter
The cylinder type hollow pipe one of≤mold block 55 lower end maximum inner diameter, then cylinder type hollow pipe is placed on the end
On seat 14；
2), on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, mold block 55 is placed on circle
The upper end of cylindricality hollow pipe, balances and just puts, and operation control panel 16 opens hydraulic press 13, and hydraulic cylinder 9 drives
Lower compression leg 10 and lower platen 11 move down, and the upper end of cylinder type hollow pipe extend in the middle of lower compression leg 10 simultaneously
In circular hole, by the pressure of hydraulic cylinder 9, mold block 55 is depressed into the bottom of cylinder type hollow pipe；
3), after mold block 55 is depressed into cylinder type hollow pipe bottom, hydraulic cylinder 9 moves, under driving simultaneously
Move on compression leg 10 and lower platen 11, on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil the most again,
Being coated with the upper end that mold block 44 is placed on after wiping cylinder type hollow pipe, balance and just put, hydraulic cylinder 9 drives
Lower compression leg 10 and lower platen 11 move down, and the upper end of cylinder type hollow pipe extend in the middle of lower compression leg 10 simultaneously
In circular hole, by the pressure of hydraulic cylinder 9, mold block 44 is depressed into the upper end of mold block 55；
4), when the lower end of mold block 44 is depressed into and is closely connected with mold block 55 upper end, hydraulic cylinder 9
Upper shifting, drives simultaneously and moves, the most again on the tube wall of cylinder type hollow pipe on lower compression leg 10 and lower platen 11
Smear last layer lubricating oil, be coated with the upper end that after wiping, mold block 33 is placed on cylinder type hollow pipe, balance
Just putting, hydraulic cylinder 9 drives lower compression leg 10 and lower platen 11 to move down, and the upper end of cylinder type hollow pipe is stretched simultaneously
Enter in the circular hole in the middle of lower compression leg 10, by the pressure of hydraulic cylinder 9, mold block 33 is depressed into mold block four
The upper end of 4；
5), when the lower end of mold block 33 is depressed into and is closely connected with mold block 44 upper end, hydraulic cylinder 9
Upper shifting, drives simultaneously and moves, the most again on the tube wall of cylinder type hollow pipe on lower compression leg 10 and lower platen 11
Smear last layer lubricating oil, be coated with the upper end that after wiping, mold block 22 is placed on cylinder type hollow pipe, balance
Just putting, hydraulic cylinder 9 drives lower compression leg 10 and lower platen 11 to move down, and the upper end of cylinder type hollow pipe is stretched simultaneously
Enter in the circular hole in the middle of lower compression leg 10, by the pressure of hydraulic cylinder 9, mold block 22 is depressed into mold block three
The upper end of 3；
6), when the lower end of mold block 22 is depressed into and is closely connected with mold block 33 upper end, hydraulic cylinder 9
Upper shifting, drives simultaneously and moves, the most again on the tube wall of cylinder type hollow pipe on lower compression leg 10 and lower platen 11
Smear last layer lubricating oil, be coated with the upper end that after wiping, mold block 1 is placed on cylinder type hollow pipe, balance
Just putting, hydraulic cylinder 9 drives lower compression leg 10 and lower platen 11 to move down, and the upper end of cylinder type hollow pipe is stretched simultaneously
Enter in the circular hole in the middle of lower compression leg 10, by the pressure of hydraulic cylinder 9, mold block 1 is depressed into mold block two
The upper end of 2, the cylinder type hollow pipe in set of molds 8 is i.e. pressed and is shaped to conical pipe 17；
7), when hydraulic cylinder 9 dip mold tool block 1, the lower end of fixing chain 12 is hung over mold block 1 side
At handle 7 on wall, after suppressing mold block 1, on hydraulic cylinder 9, fixing chain 12 band dynamic model is crossed by Mobile Communication
The conical pipe 17 1 being pressed shaping in tool group 8 and set of molds 8 ibid moves, and is then taken out by base 14,
Mould plug 6 is positioned over the endoporus upper end of mold block 1, and hydraulic cylinder 9 moves down, dip mold tool plug 6
The conical pipe 17 of machine-shaping is released and break away from moulds group 8, just can obtain finished product conical pipe 17.
Embodiment described above is only to be described the preferred embodiment of the present invention, not to this
Bright spirit and scope are defined, on the premise of without departing from design concept of the present invention, common in this area
Various modification that technical scheme is made by engineers and technicians and improvement, all should fall into the present invention's
Protection domain, the technology contents that the present invention is claimed, all record in detail in the claims.
Claims (2)
1. utilize set of molds that compressing for the cylinder type hollow pipe device for conical pipe, structure are included mold block
One (1), mold block two (2), mold block three (3), mold block four (4), mold block five (5), mould
Plug (6), handle (7), by mold block one (1), mold block two (2), mold block three (3), mould
Set of molds (8) that block four (4) and mold block five (5) form, hydraulic cylinder (9), lower compression leg (10), under
Pressing plate (11), fixing chain (12), hydraulic press (13), base (14), workbench (15), chain of command
Plate (16), wherein mold block one (1), mold block two (2), mold block three (3), mold block four (4)
It is both provided with the through hole of taper in the middle of upper with mold block five (5), the upper surface of mold block one (1) is arranged
Fluted A (1.2), the lower surface of mold block one (1) is provided with protruding A (1.1), mold block two (2)
Upper surface be provided with groove B (2.2), the lower surface of mold block two (2) is provided with protruding B (2.1),
The upper surface of mold block three (3) is provided with groove C (3.2), and the lower surface of mold block three (3) is provided with
Protruding C (3.1), the upper surface of mold block four (4) is provided with groove D (4.2), mold block four (4)
Being provided with protruding D (4.1) on lower surface, the upper surface of mold block five (5) is provided with groove E (5.2), mould
Be provided with protruding E (5.1) on the lower surface of tool block five (5), mold block one (1), mold block two (2),
Mold block three (3), mold block four (4), the material of mold block five (5) use hard metal and alloy to make,
It is characterized in that on the protruding A (1.1) on mold block one (1) lower surface and mold block two (2) upper surface
Groove B (2.2) match, the protruding B (2.1) on mold block two (2) lower surface and mold block three (3)
Groove C (3.2) on upper surface matches, the protruding C (3.1) on mold block three (3) lower surface and mould
Groove D (4.2) on tool block four (4) upper surface matches, the projection on mold block four (4) lower surface
D (4.1) matches with the groove E (5.2) on mold block five (5) upper surface, under mold block five (5)
Protruding E (5.1) on end face matches with the groove on base (14), mold block one (1) inner via hole
Bottom diameter is equal with the upper-end inner diameter of mold block two (2) inner via hole, under mold block two (2) inner via hole
End internal diameter is equal with the upper-end inner diameter of mold block three (3) inner via hole, the lower end of mold block three (3) inner via hole
Internal diameter is equal with the upper-end inner diameter of mold block four (4) inner via hole, in the lower end of mold block four (4) inner via hole
Footpath is equal with the upper-end inner diameter of mold block five (5) inner via hole, mold block one (1), mold block two (2), mould
Tool block three (3), mold block four (4), mold block five (5) rearrange set of molds (8) from top to bottom,
Forming a up-narrow and down-wide conical through-hole in the middle of set of molds (8), set of molds (8) is arranged on base (14)
On, base (14) is placed on workbench (15), and hydraulic cylinder (9) is provided below lower compression leg (10),
Lower compression leg (10) is the cylindrical structure of hollow, and lower compression leg (10) is provided below lower platen (11), under
Circular hole, the circular hole on lower platen (11) and the cavity phase in lower compression leg (10) it is provided with on pressing plate (11)
To setting, the side of lower compression leg (10) is additionally provided with fixing chain (12).
2. utilize and utilize set of molds by compressing for cylinder type hollow pipe for conical pipe described in claim 1
Device produces the production method of conical pipe, and its production method step is:
1), first by base (14) it is positioned on workbench (15) and is in the underface of hydraulic cylinder (9),
Take the cylinder type hollow pipe one of external diameter≤mold block five (5) lower end maximum inner diameter, then by cylinder type hollow pipe
It is placed on base (14)；
2), on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, mold block five (5) is placed on
The upper end of cylinder type hollow pipe, balances and just puts, and hydraulic press (13), hydraulic pressure are opened in operation control panel (16)
Cylinder (9) drives lower compression leg (10) and lower platen (11) to move down, and the upper end of cylinder type hollow pipe is stretched into simultaneously
In circular hole in the middle of lower compression leg (10), by the pressure of hydraulic cylinder (9), mold block five (5) is depressed into
The bottom of cylinder type hollow pipe；
3), after mold block five (5) is depressed into cylinder type hollow pipe bottom, hydraulic cylinder (9) is upper to be moved, simultaneously
Drive lower compression leg (10) and the upper shifting of lower platen (11), smear on the tube wall of cylinder type hollow pipe the most again
Last layer lubricating oil, is coated with the upper end that mold block four (4) is placed on after wiping cylinder type hollow pipe, balances and put
Just, hydraulic cylinder (9) drives lower compression leg (10) and lower platen (11) to move down, simultaneously cylinder type hollow pipe
Upper end extend in the circular hole in the middle of lower compression leg (10), by the pressure of hydraulic cylinder (9) by mold block four (4)
It is depressed into the upper end of mold block five (5)；
4), when the lower end of mold block four (4) is depressed into and is closely connected with mold block five (5) upper end,
Hydraulic cylinder (9) is upper to be moved, and drives lower compression leg (10) and lower platen (11) above to move, the most again at cylinder simultaneously
Smear last layer lubricating oil on the tube wall of shape hollow pipe, be coated with after wiping and mold block three (3) is placed on cylinder
The upper end of hollow pipe, balances and just puts, and hydraulic cylinder (9) drives lower compression leg (10) and lower platen (11) to move down,
The upper end of cylinder type hollow pipe extend in the circular hole in the middle of lower compression leg (10) simultaneously, by hydraulic cylinder (9)
Pressure mold block three (3) is depressed into the upper end of mold block four (4)；
5), when the lower end of mold block three (3) is depressed into and is closely connected with mold block four (4) upper end,
Hydraulic cylinder (9) is upper to be moved, and drives lower compression leg (10) and lower platen (11) above to move, the most again at cylinder simultaneously
Smear last layer lubricating oil on the tube wall of shape hollow pipe, be coated with after wiping and mold block two (2) is placed on cylinder
The upper end of hollow pipe, balances and just puts, and hydraulic cylinder (9) drives lower compression leg (10) and lower platen (11) to move down,
The upper end of cylinder type hollow pipe extend in the circular hole in the middle of lower compression leg (10) simultaneously, by hydraulic cylinder (9)
Pressure mold block two (2) is depressed into the upper end of mold block three (3)；
6), when the lower end of mold block two (2) is depressed into and is closely connected with mold block three (3) upper end,
Hydraulic cylinder (9) is upper to be moved, and drives lower compression leg (10) and lower platen (11) above to move, the most again at cylinder simultaneously
Smear last layer lubricating oil on the tube wall of shape hollow pipe, be coated with after wiping and mold block one (1) is placed on cylinder
The upper end of hollow pipe, balances and just puts, and hydraulic cylinder (9) drives lower compression leg (10) and lower platen (11) to move down,
The upper end of cylinder type hollow pipe extend in the circular hole in the middle of lower compression leg (10) simultaneously, by hydraulic cylinder (9)
Pressure mold block one (1) is depressed into the upper end of mold block two (2), the cylindrical empty in set of molds (8)
Heart pipe is i.e. pressed and is shaped to conical pipe (17)；
7), when hydraulic cylinder (9) dip mold tool block one (1), the lower end of fixing chain (12) is hung over mould
Handle (7) place on tool block one (1) sidewall, after suppressing mold block one (1), on hydraulic cylinder (9)
The taper being pressed shaping in fixing chain (12) driven mold group (8) and set of molds (8) is crossed by Mobile Communication
Pipe (17) one ibid moves, and is then taken out by base (14), mould plug (6) is positioned over mold block one
(1) endoporus upper end, hydraulic cylinder (9) moves down, and dip mold tool plug (6) is by the conical pipe of machine-shaping
(17) release also break away from moulds group (8), just can obtain finished product conical pipe (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310756934.3A CN103831354B (en) | 2013-12-25 | 2013-12-25 | Utilize set of molds by compressing for the cylinder type hollow pipe device for conical pipe and production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310756934.3A CN103831354B (en) | 2013-12-25 | 2013-12-25 | Utilize set of molds by compressing for the cylinder type hollow pipe device for conical pipe and production method |
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| CN103831354A CN103831354A (en) | 2014-06-04 |
| CN103831354B true CN103831354B (en) | 2016-09-07 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094473A (en) * | 1993-11-10 | 1994-11-02 | 上海异型钢管股份有限公司 | Drawing method for metal conic tube of integrated road lamp pole |
| CN1159371A (en) * | 1997-03-05 | 1997-09-17 | 许福林 | Method for making cone-shaped pipe by extrusion |
| CN103008382A (en) * | 2012-12-17 | 2013-04-03 | 苏州热工研究院有限公司 | Die for manufacturing reducing pipe |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2722298B2 (en) * | 1992-07-31 | 1998-03-04 | 日鐵建材工業株式会社 | Method for manufacturing drawn square tube for connection of square steel tube column |
| JP2006088221A (en) * | 2004-08-27 | 2006-04-06 | Jfe Steel Kk | Manufacturing method of tube having high dimensional accuracy |
-
2013
- 2013-12-25 CN CN201310756934.3A patent/CN103831354B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094473A (en) * | 1993-11-10 | 1994-11-02 | 上海异型钢管股份有限公司 | Drawing method for metal conic tube of integrated road lamp pole |
| CN1159371A (en) * | 1997-03-05 | 1997-09-17 | 许福林 | Method for making cone-shaped pipe by extrusion |
| CN103008382A (en) * | 2012-12-17 | 2013-04-03 | 苏州热工研究院有限公司 | Die for manufacturing reducing pipe |
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| CN103831354A (en) | 2014-06-04 |
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Effective date of registration: 20181224 Address after: 053100 Zhangxin Road, Houbian Village, Zhangxiutun Town, Zaoqiang County, Hengshui City, Hebei Province Patentee after: Hebei Ruixiang conveying machinery Co.,Ltd. Address before: 053000 No. 82, Jiazhuang village, Zhang Xiu village, Zaoqiang County, Hengshui, Hebei Patentee before: Zhao Hengpei |
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Address after: 053100 Zhang Xin Industrial Park, Zaoqiang County, Hengshui, Hebei Patentee after: Hebei Ruixiang conveying machinery Co.,Ltd. Address before: 053100 Zhangxin Road, Houbian Village, Zhangxiutun Town, Zaoqiang County, Hengshui City, Hebei Province Patentee before: Hebei Ruixiang conveying machinery Co.,Ltd. |
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Denomination of invention: Device and production method for pressing cylindrical hollow tube into conical tube by mold group Effective date of registration: 20230105 Granted publication date: 20160907 Pledgee: China Construction Bank Corporation Zaoqiang Sub branch Pledgor: Hebei Ruixiang conveying machinery Co.,Ltd. Registration number: Y2023130000006 |
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