CN103831354A - Production method for compressing cylindrical hollow pipe to form conical pipe by utilizing mold - Google Patents
Production method for compressing cylindrical hollow pipe to form conical pipe by utilizing mold Download PDFInfo
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- CN103831354A CN103831354A CN201310756934.3A CN201310756934A CN103831354A CN 103831354 A CN103831354 A CN 103831354A CN 201310756934 A CN201310756934 A CN 201310756934A CN 103831354 A CN103831354 A CN 103831354A
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Abstract
The invention relates to a production method for compressing a cylindrical hollow pipe to form a conical pipe by utilizing a mold. Conical through holes are formed in the middle of a first mold block, the middle of a second mold block, the middle of a third mold block, the middle of a fourth mold block and the middle of a fifth mold block, the first mold block, the second mold block, the third mold block, the fourth mold block and the fifth mold block are arranged from top to bottom to form a moulding mold set, a conical through hole which is narrow in upper portion and wide in lower portion is formed in the middle of the plastic mold set, the plastic mold set is arranged on a base, the base is placed on a working platform, a pressing-down column is arranged on the lower face of a hydraulic cylinder, the pressing-down column is of a hollow cylindrical structure, a pressing-down plate is arranged on the lower face of the pressing-down column, a round hole is formed in the pressing-down plate, the round hole in the pressing-down plate and a cavity in the pressing-down column are oppositely arranged, and a fixed lock chain is further arranged on the side face of the pressing-down column. The structure is simple, use is convenient, seamless machining can be carried out, a user only needs to coat lubricating oil on the wall of a machined pipe, high temperature does not need, energy is saved, the strength of the machined conical pipe is large, and the service life is long.
Description
Technical field
The present invention relates to a kind of set of molds of utilizing by the compressing cylinder type hollow pipe production method for conical pipe, be applied to the upper conical rod conical pipe of processing ribbon conveyer.
Background technology
The conical pipe that in prior art, the upper conical rod of ribbon conveyer is used is generally steel plate crimping and is welded, the conical pipe that process is welded so not only processing difficulties is wasted time and energy, and appearance is rough attractive in appearance, and weld seam easily ftractures and causes the generation of peril, service life is short, and maintain and replace is frequent.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, provide a kind of set of molds of utilizing by the compressing cylinder type hollow pipe production method for conical pipe, the technical solution adopted for the present invention to solve the technical problems is: mould structure of the present invention comprises mould piece one, mould piece two, mould piece three, mould piece four, mould piece five, mould plug, handle, by mould piece one, mould piece two, mould piece three, the plastotype set of molds that mould piece four and mould piece five form, hydraulic cylinder, lower compression leg, lower platen, fixing chain, hydraulic press, base, workbench, control panel, wherein mould piece one, mould piece two, mould piece three, in the middle of on mould piece four and mould piece five, be all provided with the through hole of taper, on the upper surface of mould piece one, be provided with groove B, on the lower surface of mould piece one, be provided with protruding A, the upper surface of mould piece two is provided with groove B, on the lower surface of mould piece two, be provided with protruding B, the upper surface of mould piece three is provided with groove C, on the lower surface of mould piece three, be provided with protruding C, the upper surface of mould piece four is provided with groove D, on the lower surface of mould piece four, be provided with protruding D, the upper surface of mould piece five is provided with groove E, is provided with protruding E, mould piece one on the lower surface of mould piece five, mould piece two, mould piece three, mould piece four, the material of mould piece five adopt hard metal and or alloy make, it is characterized in that the groove B on protruding A and mould piece two upper surfaces on mould piece one lower surface matches, groove C on protruding B on mould piece two lower surfaces and mould piece three upper surfaces matches, groove D on protruding C on mould piece three lower surfaces and mould piece four upper surfaces matches, groove E on protruding D on mould piece four lower surfaces and mould piece five upper surfaces matches, groove on protruding E and base on mould piece five lower surfaces matches, the bottom diameter of mould piece one inner via hole equates with the upper-end inner diameter of mould piece two inner via holes, the bottom diameter of mould piece two inner via holes equates with the upper-end inner diameter of mould piece three inner via holes, the bottom diameter of mould piece three inner via holes equates with the upper-end inner diameter of mould piece four inner via holes, the bottom diameter of mould piece four inner via holes equates with the upper-end inner diameter of mould piece five inner via holes, mould piece one, mould piece two, mould piece three, mould piece four, mould piece five rearranges plastotype set of molds from top to bottom, in the middle of plastotype set of molds, form a up-narrow and down-wide conical through-hole, plastotype set of molds is arranged on base, base is placed on workbench, is provided with lower compression leg, the cylindrical structure that lower compression leg is hollow below hydraulic cylinder, below lower compression leg, be provided with lower platen, on lower platen, be provided with circular hole, the cavity in the circular hole on lower platen and lower compression leg is oppositely arranged, and the side of lower compression leg is also provided with fixing chain.
2, according to utilizing set of molds by the compressing cylinder type hollow pipe production method for conical pipe described in claims 1, it is characterized in that utilizing set of molds by the compressing cylinder type hollow pipe production stage for conical pipe to be:
1), first base is positioned on workbench and under hydraulic cylinder, gets one of the semi-finished product cylinder type hollow pipe of external diameter≤mould piece five lower end maximum inner diameters, then cylinder type hollow pipe is placed on base;
2), on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, mould piece five is placed on to the upper end of cylinder type hollow pipe, balance and just put, operation control panel is opened hydraulic press, hydraulic cylinder drives lower compression leg and lower platen to move down, the upper end of semi-finished product cylinder type hollow pipe extend in the middle circular hole of lower compression leg simultaneously, by the pressure of hydraulic cylinder, mould piece five is depressed into the bottom of semi-finished product cylinder type hollow pipe;
3), mould piece five is depressed into behind cylinder type hollow pipe bottom, on hydraulic cylinder, move, drive on lower compression leg and lower platen simultaneously and move, and then on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, after painting wipes, mould piece four is placed on to the upper end of cylinder type hollow pipe, balance and just put, hydraulic cylinder drives lower compression leg and lower platen to move down, the upper end of semi-finished product cylinder type hollow pipe extend in the middle circular hole of lower compression leg simultaneously, by the pressure of hydraulic cylinder, mould piece four is depressed into the upper end of mould piece five;
4), when the lower end of mould piece four is depressed into while being closely connected with mould piece five upper ends, on hydraulic cylinder, move, drive on lower compression leg and lower platen simultaneously and move, and then on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, after painting wipes, mould piece three is placed on to the upper end of cylinder type hollow pipe, balance and just put, hydraulic cylinder drives lower compression leg and lower platen to move down, the upper end of semi-finished product cylinder type hollow pipe extend in the middle circular hole of lower compression leg simultaneously, by the pressure of hydraulic cylinder, mould piece three is depressed into the upper end of mould piece four;
5), when the lower end of mould piece three is depressed into while being closely connected with mould piece four upper ends, on hydraulic cylinder, move, drive on lower compression leg and lower platen simultaneously and move, and then on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, after painting wipes, mould piece two is placed on to the upper end of cylinder type hollow pipe, balance and just put, hydraulic cylinder drives lower compression leg and lower platen to move down, the upper end of semi-finished product cylinder type hollow pipe extend in the middle circular hole of lower compression leg simultaneously, by the pressure of hydraulic cylinder, mould piece two is depressed into the upper end of mould piece three;
6), when the lower end of mould piece two is depressed into while being closely connected with mould piece three upper ends, on hydraulic cylinder, move, drive on lower compression leg and lower platen simultaneously and move, and then on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, after painting wipes, mould piece one is placed on to the upper end of cylinder type hollow pipe, balance and just put, hydraulic cylinder drives lower compression leg and lower platen to move down, the upper end of semi-finished product cylinder type hollow pipe extend in the middle circular hole of lower compression leg simultaneously, by the pressure of hydraulic cylinder, mould piece one is depressed into the upper end of mould piece two, semi-finished product cylinder type hollow pipe in plastotype set of molds is pressed moulding is conical pipe,
7), press down mould piece at hydraulic cylinder and for the moment the lower end of fixing chain is hung over to the handle place on mould piece one sidewall, suppress after mould piece one, on hydraulic cylinder, Mobile Communication crosses fixing chain and drives the same the moving of the conical pipe that is pressed moulding one in plastotype set of molds and plastotype set of molds, then base is taken out, mould plug is positioned over to the endoporus upper end of mould piece one, hydraulic cylinder moves down, press down mould plug and the conical pipe of machine-shaping is released and departed from plastotype set of molds, just can obtain finished product conical pipe.
Operation principle: press down mould piece by repeatedly colding pressing of hydraulic cylinder, semi-finished product cylinder type hollow pipe is pressed into conical pipe, because pressure makes the crimp of semi-finished product cylinder type hollow pipe, the height of the semi-finished product cylinder type hollow pipe of the aspect ratio first being processed of the conical pipe of machine-shaping exceeds 2cm-5cm.
The invention has the beneficial effects as follows, the present invention is simple in structure, easy to use, cylinder type hollow pipe time processing can be shaped to conical pipe, seamless processing, it in process, is cold presswork, only need be on the tube wall of processed pipe coating lubricating oil, without high temperature, save the energy, the conical pipe intensity processing is large, long service life.
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 mould piece one structural representation above.
Fig. 5: embodiment of the present invention mould piece one structural representation below.
Fig. 6: embodiment of the present invention mould piece two structural representation above.
Fig. 7: embodiment of the present invention mould piece two structural representation below.
Fig. 8: embodiment of the present invention mould piece three structural representation above.
Fig. 9: embodiment of the present invention mould piece three structural representation below.
Figure 10: embodiment of the present invention mould piece four structural representation above.
Figure 11: embodiment of the present invention mould piece four structural representation below.
Figure 12: embodiment of the present invention mould piece five structural representation above.
Figure 13: embodiment of the present invention mould piece five structural representation below.
Figure 14: embodiment of the present invention conical pipe structural representation.
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: mould piece 1, mould piece 22, mould piece 33, mould piece 44, mould piece 55, mould plug 6, handle 7, the plastotype set of molds 8 being formed by mould piece 1, mould piece 22, mould piece 33, mould piece 44 and mould piece 55, hydraulic cylinder 9, lower compression leg 10, lower platen 11, fixing chain 12, hydraulic press 13, base 14, workbench 15, control panel 16, conical pipe 17.
The specific embodiment
With reference to the accompanying drawings of the present invention being done to following concrete detailed description.As shown in drawings, the present invention utilizes set of molds by the compressing cylinder type hollow pipe production stage for conical pipe to be:
1), first base 14 is positioned on workbench 15 and under hydraulic cylinder 9, gets one of the semi-finished product cylinder type hollow pipe of external diameter≤mould piece 55 lower end maximum inner diameters, then cylinder type hollow pipe is placed on base 14;
2), on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, mould piece 55 is placed on to the upper end of cylinder type hollow pipe, balance and just put, operation control panel 16 is opened hydraulic press 13, hydraulic cylinder 9 drives lower compression leg 10 and lower platen 11 to move down, the upper end of semi-finished product cylinder type hollow pipe extend in the middle circular hole of lower compression leg 10 simultaneously, by the pressure of hydraulic cylinder 9, mould piece 55 is depressed into the bottom of semi-finished product cylinder type hollow pipe;
3), mould piece 55 is depressed into behind cylinder type hollow pipe bottom, on hydraulic cylinder 9, move, drive on lower compression leg 10 and lower platen 11 simultaneously and move, and then on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, after painting wipes, mould piece 44 is placed on to the upper end of cylinder type hollow pipe, balance and just put, hydraulic cylinder 9 drives lower compression leg 10 and lower platen 11 to move down, the upper end of semi-finished product cylinder type hollow pipe extend in the middle circular hole of lower compression leg 10 simultaneously, by the pressure of hydraulic cylinder 9, mould piece 44 is depressed into the upper end of mould piece 55;
4), when the lower end of mould piece 44 is depressed into while being closely connected with mould piece 55 upper ends, on hydraulic cylinder 9, move, drive on lower compression leg 10 and lower platen 11 simultaneously and move, and then on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, after painting wipes, mould piece 33 is placed on to the upper end of cylinder type hollow pipe, balance and just put, hydraulic cylinder 9 drives lower compression leg 10 and lower platen 11 to move down, the upper end of semi-finished product cylinder type hollow pipe extend in the middle circular hole of lower compression leg 10 simultaneously, by the pressure of hydraulic cylinder 9, mould piece 33 is depressed into the upper end of mould piece 44;
5), when the lower end of mould piece 33 is depressed into while being closely connected with mould piece 44 upper ends, on hydraulic cylinder 9, move, drive on lower compression leg 10 and lower platen 11 simultaneously and move, and then on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, after painting wipes, mould piece 22 is placed on to the upper end of cylinder type hollow pipe, balance and just put, hydraulic cylinder 9 drives lower compression leg 10 and lower platen 11 to move down, the upper end of semi-finished product cylinder type hollow pipe extend in the middle circular hole of lower compression leg 10 simultaneously, by the pressure of hydraulic cylinder 9, mould piece 22 is depressed into the upper end of mould piece 33;
6), when the lower end of mould piece 22 is depressed into while being closely connected with mould piece 33 upper ends, on hydraulic cylinder 9, move, drive on lower compression leg 10 and lower platen 11 simultaneously and move, and then on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, after painting wipes, mould piece 1 is placed on to the upper end of cylinder type hollow pipe, balance and just put, hydraulic cylinder 9 drives lower compression leg 10 and lower platen 11 to move down, the upper end of semi-finished product cylinder type hollow pipe extend in the middle circular hole of lower compression leg 10 simultaneously, by the pressure of hydraulic cylinder 9, mould piece 1 is depressed into the upper end of mould piece 22, semi-finished product cylinder type hollow pipe in plastotype set of molds 8 is pressed moulding is conical pipe 17,
7), press down mould piece at hydraulic cylinder 9 and the lower end of fixing chain 12 is hung over to handle 7 places on mould piece one 1 sidewalls at one 1 o'clock, suppress after mould piece 1, on hydraulic cylinder 9, Mobile Communication crosses fixing chain 12 and drives the same the moving of the conical pipe that is pressed moulding 17 1 in plastotype set of molds 8 and plastotype set of molds 8, then base 14 is taken out, mould plug 6 is positioned over to the endoporus upper end of mould piece 1, hydraulic cylinder 9 moves down, press down mould plug 6 and the conical pipe of machine-shaping 17 is released and departed from plastotype set of molds 8, just can obtain finished product conical pipe 17.
Embodiment recited above is described the preferred embodiment of the present invention; not the spirit and scope of the present invention are limited; do not departing under the prerequisite of design concept of the present invention; various modification and improvement that in this area, common engineers and technicians make technical scheme of the present invention; all should fall into protection scope of the present invention; the technology contents of request protection of the present invention, has all been documented in claims.
Claims (2)
1. utilize mould by the compressing cylinder type hollow pipe production method for conical pipe, described mould structure comprises mould piece one (1), mould piece two (2), mould piece three (3), mould piece four (4), mould piece five (5), mould plug (6), handle (7), by mould piece one (1), mould piece two (2), mould piece three (3), the plastotype set of molds (8) of mould piece four (4) and mould piece five (5) compositions, hydraulic cylinder (9), lower compression leg (10), lower platen (11), fixing chain (12), hydraulic press (13), base (14), workbench (15), control panel (16), wherein mould piece one (1), mould piece two (2), mould piece three (3), in the middle of mould piece four (4) and mould piece five (5) are upper, be all provided with the through hole of taper, on the upper surface of mould piece one (1), be provided with groove B (1.2), on the lower surface of mould piece one (1), be provided with protruding A (1.1), the upper surface of mould piece two (2) is provided with groove B (2.2), on the lower surface of mould piece two (2), be provided with protruding B (2.1), the upper surface of mould piece three (3) is provided with groove C (3.2), on the lower surface of mould piece three (3), be provided with protruding C (3.1), the upper surface of mould piece four (4) is provided with groove D (4.2), on the lower surface of mould piece four (4), be provided with protruding D (4.1), the upper surface of mould piece five (5) is provided with groove E (5.2), on the lower surface of mould piece five (5), be provided with protruding E (5.1), mould piece one (1), mould piece two (2), mould piece three (3), mould piece four (4), the material of mould piece five (5) adopt hard metal and or alloy make, it is characterized in that the protruding A (1.1) on mould piece one (1) lower surface matches with the groove B (2.2) on mould piece two (2) upper surfaces, protruding B (2.1) on mould piece two (2) lower surfaces and the groove C (3.2) on mould piece three (3) upper surfaces match, protruding C (3.1) on mould piece three (3) lower surfaces and the groove D (4.2) on mould piece four (4) upper surfaces match, protruding D (4.1) on mould piece four (4) lower surfaces and the groove E (5.2) on mould piece five (5) upper surfaces match, protruding E (5.1) on mould piece five (5) lower surfaces matches with the groove on base (14), the bottom diameter of mould piece one (1) inner via hole equates with the upper-end inner diameter of mould piece two (2) inner via holes, the bottom diameter of mould piece two (2) inner via holes equates with the upper-end inner diameter of mould piece three (3) inner via holes, the bottom diameter of mould piece three (3) inner via holes equates with the upper-end inner diameter of mould piece four (4) inner via holes, the bottom diameter of mould piece four (4) inner via holes equates with the upper-end inner diameter of mould piece five (5) inner via holes, mould piece one (1), mould piece two (2), mould piece three (3), mould piece four (4), mould piece five (5) rearranges plastotype set of molds (8) from top to bottom, in the middle of plastotype set of molds (8), form a up-narrow and down-wide conical through-hole, plastotype set of molds (8) is arranged on base (14), base (14) is placed on workbench (15), hydraulic cylinder (9) is provided with lower compression leg (10) below, the cylindrical structure that lower compression leg (10) is hollow, lower compression leg (10) is provided with lower platen (11) below, lower platen is provided with circular hole on (11), cavity in circular hole on lower platen (11) and lower compression leg (10) is oppositely arranged, the side of lower compression leg (10) is also provided with fixing chain (12).
2. according to utilizing set of molds by the compressing cylinder type hollow pipe production method for conical pipe described in claims 1, it is characterized in that utilizing set of molds by the compressing cylinder type hollow pipe production stage for conical pipe to be:
1), first base (14) is positioned on workbench (15) and under hydraulic cylinder (9), get one of the semi-finished product cylinder type hollow pipe of external diameter≤mould piece five (5) lower end maximum inner diameters, then cylinder type hollow pipe is placed on base (14);
2), on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, mould piece five (5) is placed on to the upper end of cylinder type hollow pipe, balance and just put, operation control panel (16) is opened hydraulic press (13), hydraulic cylinder (9) drives lower compression leg (10) and lower platen (11) to move down, the upper end of semi-finished product cylinder type hollow pipe extend in the middle circular hole of lower compression leg (10) simultaneously, by the pressure of hydraulic cylinder (9), mould piece five (5) is depressed into the bottom of semi-finished product cylinder type hollow pipe;
3), mould piece five (5) is depressed into behind cylinder type hollow pipe bottom, hydraulic cylinder moves on (9), drive on lower compression leg (10) and lower platen (11) simultaneously and move, and then on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, after painting wipes, mould piece four (4) is placed on to the upper end of cylinder type hollow pipe, balance and just put, hydraulic cylinder (9) drives lower compression leg (10) and lower platen (11) to move down, the upper end of semi-finished product cylinder type hollow pipe extend in the middle circular hole of lower compression leg (10) simultaneously, by the pressure of hydraulic cylinder (9), mould piece four (4) is depressed into the upper end of mould piece five (5),
4), when the lower end of mould piece four (4) is depressed into while being closely connected with mould piece five (5) upper ends, hydraulic cylinder moves on (9), drive on lower compression leg (10) and lower platen (11) simultaneously and move, and then on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, after painting wipes, mould piece three (3) is placed on to the upper end of cylinder type hollow pipe, balance and just put, hydraulic cylinder (9) drives lower compression leg (10) and lower platen (11) to move down, the upper end of semi-finished product cylinder type hollow pipe extend in the middle circular hole of lower compression leg (10) simultaneously, by the pressure of hydraulic cylinder (9), mould piece three (3) is depressed into the upper end of mould piece four (4),
5), when the lower end of mould piece three (3) is depressed into while being closely connected with mould piece four (4) upper ends, hydraulic cylinder moves on (9), drive on lower compression leg (10) and lower platen (11) simultaneously and move, and then on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, after painting wipes, mould piece two (2) is placed on to the upper end of cylinder type hollow pipe, balance and just put, hydraulic cylinder (9) drives lower compression leg (10) and lower platen (11) to move down, the upper end of semi-finished product cylinder type hollow pipe extend in the middle circular hole of lower compression leg (10) simultaneously, by the pressure of hydraulic cylinder (9), mould piece two (2) is depressed into the upper end of mould piece three (3),
6), when the lower end of mould piece two (2) is depressed into while being closely connected with mould piece three (3) upper ends, hydraulic cylinder moves on (9), drive on lower compression leg (10) and lower platen (11) simultaneously and move, and then on the tube wall of cylinder type hollow pipe, smear last layer lubricating oil, after painting wipes, mould piece one (1) is placed on to the upper end of cylinder type hollow pipe, balance and just put, hydraulic cylinder (9) drives lower compression leg (10) and lower platen (11) to move down, the upper end of semi-finished product cylinder type hollow pipe extend in the middle circular hole of lower compression leg (10) simultaneously, by the pressure of hydraulic cylinder (9), mould piece one (1) is depressed into the upper end of mould piece two (2), semi-finished product cylinder type hollow pipe in plastotype set of molds (8) is pressed moulding is conical pipe (17),
7), the handle (7) in the time that hydraulic cylinder (9) presses down mould piece one (1), the lower end of fixing chain (12) being hung on mould piece one (1) sidewall is located, suppress after mould piece one (1), the upper Mobile Communication of hydraulic cylinder (9) crosses fixing chain (12) and drives the conical pipe that is pressed moulding (17) one the same the moving in plastotype set of molds (8) and plastotype set of molds (8), then base (14) is taken out, mould plug (6) is positioned over to the endoporus upper end of mould piece one (1), hydraulic cylinder (9) moves down, pressing down mould plug (6) releases the conical pipe of machine-shaping (17) and departs from plastotype set of molds (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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| Publication Number | Publication Date |
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| CN103831354A true CN103831354A (en) | 2014-06-04 |
| CN103831354B CN103831354B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310756934.3A Active 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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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0647434A (en) * | 1992-07-31 | 1994-02-22 | Nippon Steel Metal Prod Co Ltd | Manufacture of drawing square tube for connecting part in square shaped steel tube column |
| 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 |
| JP2006088221A (en) * | 2004-08-27 | 2006-04-06 | Jfe Steel Kk | Manufacturing method of tube having high dimensional accuracy |
| CN103008382A (en) * | 2012-12-17 | 2013-04-03 | 苏州热工研究院有限公司 | Die for manufacturing reducing pipe |
-
2013
- 2013-12-25 CN CN201310756934.3A patent/CN103831354B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0647434A (en) * | 1992-07-31 | 1994-02-22 | Nippon Steel Metal Prod Co Ltd | Manufacture of drawing square tube for connecting part in square shaped steel tube column |
| 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 |
| JP2006088221A (en) * | 2004-08-27 | 2006-04-06 | Jfe Steel Kk | Manufacturing method of tube having high dimensional accuracy |
| 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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| Publication number | Publication date |
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| CN103831354B (en) | 2016-09-07 |
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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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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
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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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
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 |