CN114558892A - Seamless steel pipe perforating device - Google Patents
Seamless steel pipe perforating device Download PDFInfo
- Publication number
- CN114558892A CN114558892A CN202210276456.5A CN202210276456A CN114558892A CN 114558892 A CN114558892 A CN 114558892A CN 202210276456 A CN202210276456 A CN 202210276456A CN 114558892 A CN114558892 A CN 114558892A
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- CN
- China
- Prior art keywords
- feeding
- perforation
- guide rail
- seat
- seamless steel
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 35
- 239000010959 steel Substances 0.000 title claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 210000004907 gland Anatomy 0.000 claims description 10
- 238000004080 punching Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 4
- 230000002146 bilateral effect Effects 0.000 abstract 1
- 238000003825 pressing Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention provides a seamless steel tube perforating device, which comprises a feeding table, a feeding cylinder, a feeding sliding seat, a workbench, a perforating movable seat, a perforating driving mechanism, a perforating assembly and a die, wherein the feeding cylinder is arranged on the feeding table; the top of pay-off platform is equipped with the pay-off guide rail, input one side of pay-off guide rail is equipped with pipe bearing platform, and output one side is equipped with the workstation, but pipe bearing platform's top is equipped with reciprocating motion's pay-off push rod, the telescopic link of material loading cylinder links to each other with the pay-off push rod, pay-off slide movable mounting is on the pay-off guide rail, the bilateral symmetry of pay-off slide is equipped with mould clamping mechanism, be equipped with walking guide rail and perforation actuating mechanism on the workstation, movable mounting has the perforation sliding seat on the walking guide rail, perforation subassembly detachably installs on the perforation sliding seat, the perforation subassembly includes ejector pin and detachably's top. The device makes things convenient for the material loading operation, and the security is high, can change the top alone moreover, can practice thrift the cost.
Description
[ technical field ] A
The invention relates to the technical field of seamless steel pipe production, in particular to a seamless steel pipe perforating device.
[ background of the invention ]
The steel pipe has a hollow cross section with a length much greater than the diameter or circumference of the steel. The production process includes seamless steel pipe and welded steel pipe, and the seamless steel pipe includes hot rolling and cold rolling. The existing production process flow of the seamless steel tube needs to use a puncher to punch and manufacture the heated square billet or billet, however, the existing seamless steel tube puncher on the market has a complex structure, the operation of loading the billet or square billet into a circular die in actual use is limited to a certain extent, and the operation is inconvenient.
In order to solve the above technical problem, utility model patent publication No. CN212682043U discloses a seamless steel pipe piercing mill, which has certain advantages, but still has the following defects:
1. when the die is used for loading a workpiece, the mode of loading the workpiece in the vertical direction and then rotating the workpiece to be fixed in the horizontal direction is adopted, so that the operation is complex, the workpiece is easy to slip off during loading, and certain potential safety hazards exist; and the positioning of the die is not firm enough, which affects the accuracy of the subsequent punching operation.
2. The whole formula structure as an organic whole of jumper bar can't dismantle the top portion alone, and the steel pipe perforation top need bear higher temperature and the great frictional force that comes from the pipe billet, and the surface is easy to wear seriously, influences the smooth finish of seamless steel pipe hole.
3. The movable block and the plunger are fixed in a direct threaded connection mode, so that looseness and deflection are easy to occur, and the quality of the seamless steel pipe is affected.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides a seamless steel tube perforating device which is convenient for feeding operation, high in safety, capable of independently replacing a top and capable of saving cost.
In order to achieve the purpose, the invention provides a seamless steel tube perforating device, which comprises a feeding table, a feeding cylinder, a feeding sliding seat, a workbench, a perforating movable seat, a perforating driving mechanism, a perforating assembly and a die, wherein the feeding cylinder is arranged on the feeding table; a feeding guide rail is arranged above the feeding table, a tube blank supporting table is arranged on one side of the input end of the feeding guide rail, a workbench is arranged on one side of the output end of the feeding guide rail, a feeding push rod capable of moving back and forth is arranged above the tube blank supporting platform, the telescopic rod of the feeding cylinder is connected with the feeding push rod, the feeding slide seat is movably arranged on the feeding guide rail, and is provided with a power mechanism, the two sides of the feeding sliding seat are symmetrically provided with mould clamping mechanisms, the moulds are loaded between the mould clamping mechanisms, the workbench is provided with a traveling guide rail and a perforation driving mechanism, the traveling guide rail is movably provided with a perforation movable seat, the perforation driving mechanism is used for driving the perforation movable seat to move on the walking guide rail in a reciprocating mode, the perforation assembly is detachably installed on the perforation movable seat, and the perforation assembly comprises a push rod and a push head detachably installed at the end portion of the push rod.
Preferably, the two sides of the output end of the feeding guide rail are symmetrically provided with slide positioning mechanisms, and each slide positioning mechanism comprises two second clamping cylinders and a second clamping plate connected with the telescopic rods of the second clamping cylinders.
Preferably, the outer side of the second clamping plate is provided with a limiting block, and two ends of the feeding sliding seat are provided with limiting grooves matched with the limiting block.
Preferably, a clamping groove is formed in the feeding sliding seat, the mold clamping mechanisms are symmetrically installed on two sides of the clamping groove, and each mold clamping mechanism comprises two first clamping cylinders and a first clamping plate connected with telescopic rods of the first clamping cylinders.
Preferably, a threaded connector is arranged at the end of the ejector rod, a threaded connection cavity matched with the threaded connector is arranged in the ejector head, an annular groove is formed in the bottom of the threaded connection cavity, an elastic anti-loosening pad is installed in the annular groove, and the threaded connector abuts against the elastic anti-loosening pad.
Preferably, the piercing assembly further comprises an adjusting screw, a threaded adjusting cavity is formed in the ejector rod, the adjusting screw is installed in the threaded adjusting cavity, a spring is arranged at one end, facing the ejector head, of the adjusting screw, and the spring abuts against the threaded connecting cavity of the ejector head.
Preferably, the perforation sliding seat comprises a fixed mounting seat, a sliding block and a gland, the sliding block is arranged at the bottom of the fixed mounting seat and matched with the walking guide rail, a mounting groove with an upward opening is formed in the fixed mounting seat, the gland is mounted above the fixed mounting seat through a fastener, a positioning seat is further extended below the gland, a closed circular groove is formed by the lower end face of the positioning seat and the mounting groove, the end part of the ejector rod is mounted in the closed circular groove, a flange connecting part is arranged on the ejector rod, and the flange connecting part is connected with the end walls of the fixed mounting seat and the gland through fasteners.
Preferably, the pressing cover is further provided with a pressing screw, and the end part of the pressing screw abuts against the ejector rod.
The invention has the beneficial effects that: according to the invention, through the matching of the feeding table, the feeding cylinder, the feeding sliding seat, the workbench, the perforation movable seat, the perforation driving mechanism, the perforation assembly, the die and the like, the tube blank can be automatically pushed into the die by using the feeding cylinder, and the die loaded with the tube blank is conveyed to the perforation station through the feeding sliding seat, so that the feeding is convenient, and the safety is high. In addition, the mould and the sliding seat can be positioned by utilizing the mould clamping mechanism and the sliding seat positioning mechanism, so that the accuracy of subsequent punching operation is ensured. The perforation assembly adopts a split structure, and can independently replace the top head part with the easily worn and serious surface, thereby ensuring the smooth finish of the inner hole of the seamless steel pipe.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic top view of a seamless steel tube piercing apparatus according to the present invention;
FIG. 2 is a front view of a seamless steel pipe piercing apparatus according to the present invention;
FIG. 3 is a cross-sectional view of a movable piercing seat and a piercing assembly of the seamless steel tube piercing apparatus according to the present invention;
FIG. 4 is a right side view of a movable piercing seat of the seamless steel tube piercing apparatus according to the present invention;
FIG. 5 is a schematic left side view of a tube blank supporting table of the seamless steel tube piercing apparatus according to the present invention.
[ detailed description ] embodiments
Referring to fig. 1 to 5, the seamless steel tube perforating device of the present invention includes a feeding table 1, a feeding cylinder 2, a feeding slide carriage 3, a worktable 4, a perforating movable seat 5, a perforating driving mechanism 6, a perforating assembly 7 and a mold 8; the device is characterized in that a feeding guide rail 12 is arranged above the feeding table 1, a tube blank supporting table 11 is arranged on one side of the input end of the feeding guide rail 12, a workbench 4 is arranged on one side of the output end of the feeding guide rail 12, a feeding push rod 21 capable of moving in a reciprocating manner is arranged above the tube blank supporting table 11, a telescopic rod of the feeding cylinder 2 is connected with the feeding push rod 21, the feeding slide seat 3 is movably arranged on the feeding guide rail 12 and is provided with a power mechanism, mold clamping mechanisms 32 are symmetrically arranged on two sides of the feeding slide seat 3, a mold 8 is loaded between the mold clamping mechanisms 32, a traveling guide rail 41 and a perforation driving mechanism 6 are arranged on the workbench 4, a perforation movable seat 5 is movably arranged on the traveling guide rail 41, the perforation driving mechanism 6 is used for driving the perforation movable seat 5 to move in a reciprocating manner on the traveling guide rail 41, and the perforation assembly 7 is detachably arranged on the perforation movable seat 5, the piercing assembly 7 includes a carrier rod 71, and a carrier head 72 detachably mounted on an end thereof.
Further, referring to fig. 1, slide positioning mechanisms 13 are symmetrically disposed on two sides of the output end of the feeding rail 12, and each slide positioning mechanism 13 includes two second clamping cylinders 131 and a second clamping plate 132 connected to the telescopic rods of the second clamping cylinders 131. The outside of second clamp plate 132 is equipped with stopper 133, the spacing groove with stopper 133 looks adaptation is seted up at the both ends of pay-off slide 3. The feeding sliding base 3 can be limited by the sliding base positioning mechanism 13, and vibration is reduced during punching operation.
Further, referring to fig. 1, a clamping groove 31 is formed in the feeding slide 3, the mold clamping mechanisms 32 are symmetrically installed on two sides of the clamping groove 31, and each mold clamping mechanism 32 includes two first clamping cylinders and a first clamping plate connected to a telescopic rod of each first clamping cylinder.
Furthermore, a threaded connector 712 is arranged at the end of the ejector rod 71, a threaded connection cavity matched with the threaded connector 712 is arranged in the ejector head 72, an annular groove 722 is arranged at the bottom of the threaded connection cavity, an elastic anti-loosening pad 723 is arranged in the annular groove 722, and the threaded connector 712 abuts against the elastic anti-loosening pad 723. The plug 72 is provided with a wear-resistant alloy layer 721 outside. The anti-loosening pad can improve the reliability of threaded connection.
Further, the punching assembly 7 further includes an adjusting screw 73, the top rod 71 has a threaded adjusting cavity 710 therein, the adjusting screw 73 is installed in the threaded adjusting cavity 710, one end of the adjusting screw 73 facing the top head 72 is provided with a spring 74, the spring 74 abuts against the threaded connecting cavity of the top head 72, and the other end of the adjusting screw 73 has an inner hexagonal groove 731. The position of the adjusting screw 73 can be adjusted as required, so that the spring 74 applies pressing force to the top 72, the anti-loosening effect is improved, and loosening caused by vibration of threaded connection is avoided. The adjusting screw 73 and the ejector rod 71 can be made of different materials, the ejector rod is made of high-strength wear-resistant materials, the requirement on the adjusting screw is low, cost can be saved, and the adjusting screw can provide certain supporting force.
Further, the perforation movable seat 5 comprises a fixed mounting seat 51, a sliding block 52 and a pressing cover 53, the sliding block 52 is arranged at the bottom of the fixed mounting seat 51, the sliding block 52 is matched with the walking guide rail 41, a mounting groove 511 with an upward opening is formed in the fixed mounting seat 51, the pressing cover 53 is mounted above the fixed mounting seat 51 through a fastening piece, a positioning seat 531 further extends below the pressing cover 53, a closed circular groove is formed by the lower end face of the positioning seat 531 and the mounting groove 511, the end portion of the ejector rod 71 is mounted in the closed circular groove, a flange connecting portion 711 is arranged on the ejector rod 71, and the flange connecting portion 711 is connected with the end walls of the fixed mounting seat 51 and the pressing cover 53 through the fastening piece.
Furthermore, the gland 53 is further provided with a compression screw 54, the end of the compression screw 54 abuts against the top rod 71, and the inner wall of the positioning seat 531 is provided with a non-slip mat, so that the positioning reliability can be further improved, and the vibration can be reduced.
Further, the perforation driving mechanism 6 comprises a perforation motor 61 and a screw driving assembly 62 connected with an output end of the perforation motor 61, and the perforation movable seat 5 is provided with a driving nut assembly 50 installed in cooperation with the screw driving assembly 62.
Further, a guide input groove 110 is formed in the tube blank supporting platform 11, and the section of the guide input groove 110 is in a V shape.
The working process of the invention is as follows:
before the seamless steel tube perforating device works, a die 8 is firstly installed on a feeding sliding seat 3, and the die 8 is clamped through a die clamping mechanism 32. When the device works, the feeding cylinder 2 is started, and the pipe blank placed on the pipe blank supporting platform 11 is pushed into the die 8 by the feeding push rod 21; and then, the die 8 loaded with the tube blank is conveyed to a punching station through the feeding slide seat 3, and after the feeding slide seat 3 is in place, the slide seat is positioned by the slide seat positioning mechanism in a reinforcing way, so that the accuracy of subsequent punching operation is ensured. And then starting the perforating motor 61, driving the perforating assembly 7 to reciprocate under the driving of the perforating movable seat 5, further driving the perforating assembly 7 to punch a round hole in the center of the tube blank, enabling the extruded metal in the center of the tube blank to just fill the gap between the outer wall of the tube blank and the die 8, and cooling to obtain the seamless welded steel tube.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (8)
1. A seamless steel pipe perforating device is characterized in that: comprises a feeding table (1), a feeding cylinder (2), a feeding sliding seat (3), a workbench (4), a perforation movable seat (5), a perforation driving mechanism (6), a perforation component (7) and a die (8); the device is characterized in that a feeding guide rail (12) is arranged above the feeding table (1), a tube blank supporting table (11) is arranged on one side of the input end of the feeding guide rail (12), a workbench (4) is arranged on one side of the output end of the feeding guide rail (12), a feeding push rod (21) capable of moving in a reciprocating mode is arranged above the tube blank supporting table (11), a telescopic rod of a feeding cylinder (2) is connected with the feeding push rod (21), a feeding sliding seat (3) is movably arranged on the feeding guide rail (12) and is provided with a power mechanism in a matched mode, mold clamping mechanisms (32) are symmetrically arranged on two sides of the feeding sliding seat (3), molds (8) are loaded between the mold clamping mechanisms (32), a walking guide rail (41) and a perforation driving mechanism (6) are arranged on the workbench (4), and a perforation movable seat (5) is movably arranged on the walking guide rail (41), perforation actuating mechanism (6) are used for the drive perforation movable seat (5) reciprocating motion on walking guide rail (41), perforation subassembly (7) detachably installs on perforation movable seat (5), perforation subassembly (7) include ejector pin (71) and detachably install top (72) at its tip.
2. A seamless steel tube piercing apparatus as claimed in claim 1, characterized in that: the two sides of the output end of the feeding guide rail (12) are symmetrically provided with a sliding seat positioning mechanism (13), and the sliding seat positioning mechanism (13) comprises two second clamping cylinders (131) and a second clamping plate (132) connected with telescopic rods of the second clamping cylinders (131).
3. A seamless steel pipe piercing apparatus as claimed in claim 2, wherein: the outside of second clamp plate (132) is equipped with stopper (133), the spacing groove with stopper (133) looks adaptation is seted up at the both ends of pay-off slide (3).
4. A seamless steel tube piercing apparatus as claimed in claim 1, wherein: the feeding sliding seat (3) is internally provided with a clamping groove (31), the die clamping mechanisms (32) are symmetrically arranged on two sides of the clamping groove (31), and each die clamping mechanism (32) comprises two first clamping cylinders and a first clamping plate connected with telescopic rods of the first clamping cylinders.
5. A seamless steel tube piercing apparatus as claimed in claim 1, characterized in that: the end of the ejector rod (71) is provided with a threaded connector (712), a threaded connection cavity matched with the threaded connector (712) is arranged in the ejector head (72), the bottom of the threaded connection cavity is provided with an annular groove (722), an elastic anti-loosening pad (723) is installed in the annular groove (722), and the threaded connector (712) abuts against the elastic anti-loosening pad (723).
6. The seamless steel tube piercing apparatus according to claim 1 or 5, wherein: the punching assembly (7) further comprises an adjusting screw rod (73), a thread adjusting cavity (710) is formed in the ejector rod (71), the adjusting screw rod (73) is installed in the thread adjusting cavity (710), a spring (74) is arranged at one end, facing the ejector head (72), of the adjusting screw rod (73), and the spring (74) abuts against the thread connecting cavity of the ejector head (72).
7. A seamless steel tube piercing apparatus as claimed in claim 1, characterized in that: perforation sliding seat (5) are including fixed mounting seat (51), slider (52), gland (53), the bottom of fixed mounting seat (51) is equipped with slider (52), slider (52) and walking guide rail (41) looks adaptation, be equipped with opening mounting groove (511) up on fixed mounting seat (51), gland (53) are installed in the top of fixed mounting seat (51) through the fastener, positioning seat (531) have still been extended to the below of gland (53), the lower terminal surface of positioning seat (531) with confined circular recess is constituteed in mounting groove (511), the tip of ejector pin (71) is installed in the confined circular recess, be equipped with flange joint portion (711) on ejector pin (71), flange joint portion (711) are connected through the fastener with the end wall of fixed mounting seat (51), gland (53).
8. A seamless steel tube piercing apparatus as claimed in claim 1, characterized in that: and a compression screw rod (54) is further installed on the gland (53), and the end part of the compression screw rod (54) is abutted against the ejector rod (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210276456.5A CN114558892B (en) | 2022-03-21 | 2022-03-21 | Seamless steel pipe perforating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210276456.5A CN114558892B (en) | 2022-03-21 | 2022-03-21 | Seamless steel pipe perforating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114558892A true CN114558892A (en) | 2022-05-31 |
| CN114558892B CN114558892B (en) | 2023-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210276456.5A Active CN114558892B (en) | 2022-03-21 | 2022-03-21 | Seamless steel pipe perforating device |
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| Country | Link |
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| CN (1) | CN114558892B (en) |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB687283A (en) * | 1950-01-23 | 1953-02-11 | Stewarts & Lloyds Ltd | Improvements in or relating to a method of and apparatus for the manufacture of seamless metal tubes |
| GB768593A (en) * | 1954-03-16 | 1957-02-20 | Svenska Metallverken Ab | A method and means for passing tube blanks through step rolling mills |
| US3577754A (en) * | 1964-09-09 | 1971-05-04 | Albert H Calmes | Process and apparatus for rolling seamless tubes |
| CN101559436A (en) * | 2009-05-20 | 2009-10-21 | 太原重工股份有限公司 | Quick connecting device for punch top and mandril of perforator |
| CN201799449U (en) * | 2010-09-09 | 2011-04-20 | 无锡西姆莱斯石油专用管制造有限公司 | Locking ejector head device |
| CN204035187U (en) * | 2014-08-19 | 2014-12-24 | 浙江中星钢管机械有限公司 | A kind of piercing mill of seamless steel tube |
| CN107350377A (en) * | 2017-07-04 | 2017-11-17 | 浙江东雄重工有限公司 | A kind of sheet material feeding device |
| CN207343817U (en) * | 2017-11-01 | 2018-05-11 | 中核（天津）机械有限公司 | A kind of axial workpiece collet |
| CN207695324U (en) * | 2018-01-03 | 2018-08-07 | 建湖县富马电子设备有限公司 | A kind of punching machine post rod structure |
| CN109352438A (en) * | 2018-09-05 | 2019-02-19 | 杭州游闻网络科技有限公司 | A kind of port of steel pipe grinding device |
| CN210756465U (en) * | 2019-07-06 | 2020-06-16 | 江阴市南方不锈钢管有限公司 | Centering machine before perforation of stainless steel pipe |
| CN210953333U (en) * | 2019-07-18 | 2020-07-07 | 常州市常光光学仪器有限公司 | Center prospecting device for different focal length positions of optical center instrument lens |
| CN212264585U (en) * | 2019-12-31 | 2021-01-01 | 江苏路乔金属科技有限公司 | Centering machine for processing seamless steel pipe |
| CN112170631A (en) * | 2020-09-24 | 2021-01-05 | 杭州亦和水电安装工程有限公司 | Seamless steel pipe perforating equipment with location structure |
| JP2021164958A (en) * | 2020-04-02 | 2021-10-14 | Ｊｆｅスチール株式会社 | Plug for manufacture of seamless steel pipe, piercing mill for manufacture of seamless steel pipe, and method of manufacturing seamless steel pipe |
| CN214443265U (en) * | 2021-03-15 | 2021-10-22 | 天津市大地工贸有限公司 | Perforating machine for seamless steel pipe production |
| WO2022001110A1 (en) * | 2020-06-29 | 2022-01-06 | 浙江佛尔泰智能设备有限公司 | Transmission shaft production line |
| CN216064848U (en) * | 2021-07-05 | 2022-03-18 | 江苏久恒新材料科技有限公司 | Seamless steel pipe piercing plug |
-
2022
- 2022-03-21 CN CN202210276456.5A patent/CN114558892B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB687283A (en) * | 1950-01-23 | 1953-02-11 | Stewarts & Lloyds Ltd | Improvements in or relating to a method of and apparatus for the manufacture of seamless metal tubes |
| GB768593A (en) * | 1954-03-16 | 1957-02-20 | Svenska Metallverken Ab | A method and means for passing tube blanks through step rolling mills |
| US3577754A (en) * | 1964-09-09 | 1971-05-04 | Albert H Calmes | Process and apparatus for rolling seamless tubes |
| CN101559436A (en) * | 2009-05-20 | 2009-10-21 | 太原重工股份有限公司 | Quick connecting device for punch top and mandril of perforator |
| CN201799449U (en) * | 2010-09-09 | 2011-04-20 | 无锡西姆莱斯石油专用管制造有限公司 | Locking ejector head device |
| CN204035187U (en) * | 2014-08-19 | 2014-12-24 | 浙江中星钢管机械有限公司 | A kind of piercing mill of seamless steel tube |
| CN107350377A (en) * | 2017-07-04 | 2017-11-17 | 浙江东雄重工有限公司 | A kind of sheet material feeding device |
| CN207343817U (en) * | 2017-11-01 | 2018-05-11 | 中核（天津）机械有限公司 | A kind of axial workpiece collet |
| CN207695324U (en) * | 2018-01-03 | 2018-08-07 | 建湖县富马电子设备有限公司 | A kind of punching machine post rod structure |
| CN109352438A (en) * | 2018-09-05 | 2019-02-19 | 杭州游闻网络科技有限公司 | A kind of port of steel pipe grinding device |
| CN210756465U (en) * | 2019-07-06 | 2020-06-16 | 江阴市南方不锈钢管有限公司 | Centering machine before perforation of stainless steel pipe |
| CN210953333U (en) * | 2019-07-18 | 2020-07-07 | 常州市常光光学仪器有限公司 | Center prospecting device for different focal length positions of optical center instrument lens |
| CN212264585U (en) * | 2019-12-31 | 2021-01-01 | 江苏路乔金属科技有限公司 | Centering machine for processing seamless steel pipe |
| JP2021164958A (en) * | 2020-04-02 | 2021-10-14 | Ｊｆｅスチール株式会社 | Plug for manufacture of seamless steel pipe, piercing mill for manufacture of seamless steel pipe, and method of manufacturing seamless steel pipe |
| WO2022001110A1 (en) * | 2020-06-29 | 2022-01-06 | 浙江佛尔泰智能设备有限公司 | Transmission shaft production line |
| CN112170631A (en) * | 2020-09-24 | 2021-01-05 | 杭州亦和水电安装工程有限公司 | Seamless steel pipe perforating equipment with location structure |
| CN214443265U (en) * | 2021-03-15 | 2021-10-22 | 天津市大地工贸有限公司 | Perforating machine for seamless steel pipe production |
| CN216064848U (en) * | 2021-07-05 | 2022-03-18 | 江苏久恒新材料科技有限公司 | Seamless steel pipe piercing plug |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114558892B (en) | 2023-12-22 |
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