CN102284556A - Large coiler mandrel for cold-rolled strip steel - Google Patents
Large coiler mandrel for cold-rolled strip steel Download PDFInfo
- Publication number
- CN102284556A CN102284556A CN2011101926102A CN201110192610A CN102284556A CN 102284556 A CN102284556 A CN 102284556A CN 2011101926102 A CN2011101926102 A CN 2011101926102A CN 201110192610 A CN201110192610 A CN 201110192610A CN 102284556 A CN102284556 A CN 102284556A
- Authority
- CN
- China
- Prior art keywords
- pyramid
- fanning strip
- transmission section
- section
- hollow shaft
- 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
Images
Landscapes
- Winding Of Webs (AREA)
Abstract
The invention discloses a large coiler mandrel for cold-rolled strip steel. The coiler mandrel comprises a pyramid shaft consisting of a transmission section and a pyramid section, wherein the periphery of the transmission section is sleeved with a gear hollow shaft; fan-shaped plates are uniformly distributed at the periphery of the pyramid section; the periphery of the end of the pyramid section is sleeved with a fan-shaped plate positioning sleeve; a mandrel pull rod is arranged in the pyramid shaft; one end of the mandrel pull rod is connected with a rotating expansion and contraction cylinder, and the other end of the mandrel pull rod is connected with the fan-shaped plate positioning sleeve; the fan-shaped plate positioning sleeve is connected with the fan-shaped plates and panel strips; the rotating expansion and contraction cylinder is arranged in an inner cavity at the tail end of the gear hollow shaft; an inner cavity at the head end of the gear hollow shaft and a corresponding part of the transmission section have a conical surface matched structure; and the gear hollow shaft and the transmission section are fixed through a connecting piece to form a whole. The technical problem that the mandrel has large radial runout because the pyramid shaft and the gear hollow shaft of the conventional mandrel are in clearance sliding fit can be solved, the rotational inertia of the mandrel is reduced, and dents are prevented from being formed on the surface of the strip steel due to a gap between adjacent fan-shaped plates when the mandrel is expanded.
Description
Technical field
The present invention relates to a kind of cold rolled metal strip taking-up equipment, refer to the large-scale coiler mandrel of a kind of cold-strip steel particularly.
Background technology
Increasingly extensive along with the cold-rolled steel strip products range of application, modern cold-strip steel taking-up equipment just develops towards the maximization direction of high speed, rewinding, the wide plate width of cloth.With automobile car plate and household electrical appliances panel is the high-end cold-reduced sheet market of representative, and flat cold-rolled sheet kind, quality have been proposed more and more higher requirement, and the cold coiling machine reel directly related with thin plate also develops towards accurate more direction.
Existing hightension coiler mandrel structurally comes with some shortcomings, mainly show: what 1) existing coiler mandrel adopted is bigger external rotation breathing oil cylinder, increased the reel rotary inertia, thereby coiling machine speed governing, braking ability have been influenced, motion response sensitivity deficiency in the rolling machine system of high automation; 2) adopt the gap to be slidingly matched between the hollow shaft of existing coiler mandrel and the pyramid axle, when reel ran up, reel produced bigger circular runout inevitably, and the dynamic balance performance of reel is relatively poor, and the speed of reel is difficult to further raising; 3) for the wide plate width of cloth, the heavy rolling system of big volume, existing coiler mandrel is relatively poor aspect pyramid axle intensity, fanning strip rigidity, and the band steel that batches also exists quality problems such as impression.In sum, the coiler mandrel of existing structure can't satisfy the cold rolled strip steel production demand that bearing capacity is big, running accuracy is high and reeling quality is good.
Summary of the invention
Purpose of the present invention is exactly the large-scale coiler mandrel of cold-strip steel that will provide that a kind of rotary inertia is little, dynamic balance performance good, can produce no impression band steel.
For achieving the above object, the large-scale coiler mandrel of cold-strip steel that the present invention is designed, comprise the pyramid axle, described pyramid axle is made of transmission section and pyramid section, the periphery of described transmission section is set with the gear hollow shaft, the periphery four directions of described pyramid section is evenly equipped with fanning strip, and the end periphery of described pyramid section is set with the fanning strip positioning sleeve.The inside of described transmission section and pyramid section is provided with the reel pull bar of slip, the end that described reel pull bar is positioned at the transmission section links to each other with the rotation contract cylinder, the end that described reel pull bar is positioned at the pyramid section links to each other with the outer end of fanning strip positioning sleeve, and the inner of described fanning strip positioning sleeve links to each other with fanning strip.Described rotation contract cylinder is arranged in the tail end inner chamber of gear hollow shaft, and the head end inner chamber of described gear hollow shaft and the counterpart of described transmission section are the taper seat fit structure, and described gear hollow shaft and described transmission section are fixed as one by connector.
Further, in order to guarantee pyramid axle intensity and fanning strip rigidity, axially be symmetrically arranged with dovetail groove on the pyramid section of described pyramid axle, axially be provided with corresponding swallow-tail form boss on the described fanning strip, the both sides of described swallow-tail form boss are provided with axial sloping platform face.The swallow-tail form boss of described fanning strip and the dovetail groove of pyramid axle are slidingly connected, the axial sloping platform face of described fanning strip and pyramid axle butt.
Again further, impression is caused at belt steel surface in the slit when avoiding the reel distending between adjacent fanning strip, is provided with panel between the described adjacent fanning strip.The seamed edge place of described pyramid axle is provided with the panel mounting groove, and described panel and panel mounting groove are slidingly connected.The installed surface that the working end of described panel is provided with the supporting surface that adapts with fanning strip outside radian and connects with the axial sloping platform face of fanning strip.
Further, described rotation contract cylinder has cylinder body, oil cylinder protecgulum and oil cylinder bonnet.Described oil cylinder protecgulum links to each other with the transmission section of pyramid axle, and the arranged outside of described oil cylinder bonnet has the rotation oil feeder, is provided with piston in the described cylinder body, and described piston links to each other by the end that bolt assembly and reel pull bar are positioned at the transmission section.
Be provided with connecting key between described gear hollow shaft and the described transmission section, the junction of described transmission section and pyramid section is provided with annular lip, and described gear hollow shaft is connected by bolt assembly and annular lip.The gear hollow shaft is with after pyramid axial cone face cooperates, and annular lip can be fixing reliably with the gear hollow shaft.
The end that described reel pull bar is positioned at the pyramid section is provided with the end face flange, described end face flange links to each other by the outer end of bolt assembly with the fanning strip positioning sleeve, the axially-movable of reel pull bar can pass to fanning strip and panel by the fanning strip positioning sleeve, realizes the bloated footpath and the undergauge of reel.
The inner of described fanning strip positioning sleeve is provided with flange, and described fanning strip corresponding end is connected with cambered plate by screw, and the corresponding end of described panel is provided with groove, and the flange of described fanning strip positioning sleeve cooperates with the groove clamping of cambered plate and panel simultaneously.
The invention has the advantages that: the rotation contract cylinder of the large-scale coiler mandrel of designed cold-strip steel is positioned at gear hollow shaft inside, both can save the arrangement space of equipment, improve the oil cylinder reliability of operation, can reduce the rotary inertia of reel again to greatest extent, improve the speed adjusting performance of coiling machine; Between the transmission section of gear hollow shaft and pyramid axle for taper seat cooperates, precision positioning between the two, the bigger technical problem of reel circular runout that is slidingly matched and causes owing to the employing gap between the pyramid axle that can solve existing reel and the gear hollow shaft; Be provided with panel between the adjacent fanning strip, panel becomes a complete cylindrical surface with the synchronous breathing of fanning strip behind the reel distending, and impression is caused at belt steel surface in the slit in the time of can avoiding the reel distending between adjacent fanning strip; The swallow-tail form boss of fanning strip and the dovetail groove of pyramid axle are slidingly connected, the axial sloping platform face of fanning strip and pyramid axle butt, and the bearing surface transmission moment of torsion by both can guarantee that pyramid axle intensity and fanning strip rigidity satisfy the demands.
Description of drawings
Fig. 1 is the rotation cross-sectional view of the large-scale coiler mandrel of a kind of cold-strip steel.
Fig. 2 is the A-A section structure for amplifying schematic diagram among Fig. 1.
Fig. 3 analyses and observe the structure for amplifying schematic diagram for the B-B among Fig. 1.
Fig. 4 is the structural representation of Fig. 1 middle gear hollow shaft.
Fig. 5 is the cross-sectional view of pyramid axle among Fig. 1.
Fig. 6 is the cross-sectional view of panel among Fig. 1.
Fig. 7 is the cross-sectional view of fanning strip among Fig. 1.
The specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the large-scale coiler mandrel of cold-strip steel of the present invention comprises pyramid axle 2, and it is made of transmission section 2c and pyramid section 2d, and the junction of transmission section 2c and pyramid section 2d is provided with annular lip 2e.The periphery of transmission section 2c is set with gear hollow shaft 3, is provided with connecting key 16 between gear hollow shaft 3 and the transmission section 2c.The counterpart of the head end inner chamber 3a of gear hollow shaft 3 and described transmission section 2c is the taper seat fit structure, and gear hollow shaft 3 is connected with annular lip 2e by bolt assembly 15.The external cylindrical surface of gear hollow shaft 3 is installed rear end bearing 11, travelling gear 12 and preceding end bearing 10 successively.Uniform four fanning strips 1 in periphery four directions of pyramid section 2d, axially be symmetrically arranged with dovetail groove 2a on the pyramid section 2d of pyramid axle 2, axially be provided with corresponding swallow-tail form boss 1a on the fanning strip 1, the both sides of swallow-tail form boss 1a are provided with axial sloping platform face 1b, the swallow-tail form boss 1a of fanning strip 1 and the dovetail groove 2a of pyramid axle 2 are slidingly connected, the axial sloping platform face 1b of fanning strip 1 and pyramid axle 2 butts.Be provided with panel 5 between the adjacent fanning strip 1, the seamed edge place of pyramid axle 2 is provided with panel mounting groove 2b, and panel 5 is slidingly connected with panel mounting groove 2b.The installed surface 5b that the working end of panel 5 is provided with the supporting surface 5a that adapts with fanning strip 1 outside radian and connects with the axial sloping platform face 1b of fanning strip 1.The syndeton of fanning strip 1 and panel 5 and pyramid axle 2 as shown in Figure 2.
The end periphery of pyramid section 2d is set with fanning strip positioning sleeve 6, the inner of fanning strip positioning sleeve 6 is provided with flange 6a, fanning strip 1 corresponding end is connected with cambered plate 7 by screw, the corresponding end of panel 5 is provided with groove 5c, the flange 6a of fanning strip positioning sleeve 6 cooperates with the groove 5c clamping of cambered plate 7 and panel 5 simultaneously, can drive fanning strip 1 and panel 5 synchronously and move to the left or to the right, realize the bloated footpath and the undergauge of reel.
The inside of transmission section 2c and pyramid section 2d is provided with the reel pull bar 4 of slip, and the end that reel pull bar 4 is positioned at transmission section 2c links to each other with rotation contract cylinder 13.Rotation contract cylinder 13 is arranged among the tail end inner chamber 3b of gear hollow shaft 3, it comprises cylinder body 13a, oil cylinder protecgulum 13c and oil cylinder bonnet 13d, oil cylinder protecgulum 13c links to each other by screw 17 with the transmission section 2c of pyramid axle 2, the arranged outside of oil cylinder bonnet 13d has rotation oil feeder 14, be provided with piston 13b in the cylinder body 13a, piston 13b links to each other with the end that reel pull bar 4 is positioned at transmission section 2c by nut assembly 13e.The end that reel pull bar 4 is positioned at pyramid section 2d is provided with end face flange 4a, and end face flange 4a links to each other by the outer end of bolt with fanning strip positioning sleeve 6.The end face flange 4a arranged outside of reel pull bar 4 is useful on the gland 8 of fixing outer spring bearing 9, and gland 8 is fixedlyed connected with end face flange 4a.
During this coiler mandrel need of work undergauge, the piston 13b of rotation oil feeder 14 control rotation contract cylinders 13 protracts, piston 13b drives fanning strip positioning sleeve 6 by reel pull bar 4 and moves right, fanning strip positioning sleeve 6 drives fanning strip 1 simultaneously and panel 5 is creeped to the right, promptly creep to the small end of pyramid section 2d, thus the undergauge of realization reel.
When this coiler mandrel need of work expands the footpath, receive behind the piston 13b of rotation oil feeder 14 control rotation contract cylinders 13, piston 13b drives fanning strip positioning sleeve 6 by reel pull bar 4 and is moved to the left, fanning strip positioning sleeve 6 drives fanning strip 1 simultaneously and panel 5 is creeped left, promptly creep to the big end of pyramid section 2d, thus the bloated footpath of realizing reel.
Claims (8)
1. large-scale coiler mandrel of cold-strip steel, comprise pyramid axle (2), described pyramid axle (2) is made of transmission section (2c) and pyramid section (2d), the periphery of described transmission section (2c) is set with gear hollow shaft (3), the periphery four directions of described pyramid section (2d) is evenly equipped with fanning strip (1), and the end periphery of described pyramid section (2d) is set with fanning strip positioning sleeve (6); The inside of described transmission section (2c) and pyramid section (2d) is provided with the reel pull bar (4) of slip, the end that described reel pull bar (4) is positioned at transmission section (2c) links to each other with rotation contract cylinder (13), the end that described reel pull bar (4) is positioned at pyramid section (2d) links to each other with the outer end of fanning strip positioning sleeve (6), the inner of described fanning strip positioning sleeve (6) links to each other with fanning strip (1), it is characterized in that: described rotation contract cylinder (13) is arranged in the tail end inner chamber (3b) of gear hollow shaft (3), the head end inner chamber (3a) of described gear hollow shaft (3) is the taper seat fit structure with the counterpart of described transmission section (2c), and described gear hollow shaft (3) is fixed as one by connector with described transmission section (2c).
2. the large-scale coiler mandrel of cold-strip steel according to claim 1, it is characterized in that: axially be symmetrically arranged with dovetail groove (2a) on the pyramid section (2d) of described pyramid axle (2), axially be provided with corresponding swallow-tail form boss (1a) on the described fanning strip (1), the both sides of described swallow-tail form boss (1a) are provided with axial sloping platform face (1b); The swallow-tail form boss (1a) of described fanning strip (1) is slidingly connected with the dovetail groove (2a) of pyramid axle (2), the axial sloping platform face (1b) of described fanning strip (1) and pyramid axle (2) butt.
3. the large-scale coiler mandrel of cold-strip steel according to claim 1 and 2 is characterized in that: be provided with panel (5) between the described adjacent fanning strip (1); The seamed edge place of described pyramid axle (2) is provided with panel mounting groove (2b); Described panel (5) is slidingly connected with panel mounting groove (2b); The installed surface (5b) that the working end of described panel (5) is provided with the supporting surface (5a) that adapts with fanning strip (1) outside radian and connects with the axial sloping platform face (1b) of fanning strip (1).
4. the large-scale coiler mandrel of cold-strip steel according to claim 1 and 2, it is characterized in that: described rotation contract cylinder (13) has cylinder body (13a), oil cylinder protecgulum (13c) and oil cylinder bonnet (13d), described oil cylinder protecgulum (13c) links to each other with the transmission section (2c) of pyramid axle (2), the arranged outside of described oil cylinder bonnet (13d) has rotation oil feeder (14), be provided with piston (13b) in the described cylinder body (13a), described piston (13b) links to each other with the end that reel pull bar (4) is positioned at transmission section (2c) by nut assembly (13e).
5. the large-scale coiler mandrel of cold-strip steel according to claim 3, it is characterized in that: described rotation contract cylinder (13) has cylinder body (13a), oil cylinder protecgulum (13c) and oil cylinder bonnet (13d), described oil cylinder protecgulum (13c) links to each other with the transmission section (2c) of pyramid axle (2), the arranged outside of described oil cylinder bonnet (13d) has rotation oil feeder (14), be provided with piston (13b) in the described cylinder body (13a), described piston (13b) links to each other with the end that reel pull bar (4) is positioned at transmission section (2c) by nut assembly (13e).
6. the large-scale coiler mandrel of cold-strip steel according to claim 3, it is characterized in that: be provided with connecting key (16) between described gear hollow shaft (3) and the described transmission section (2c), the junction of described transmission section (2c) and pyramid section (2d) is provided with annular lip (2e), and described gear hollow shaft (3) is connected by bolt assembly (15) and annular lip (2e).
7. the large-scale coiler mandrel of cold-strip steel according to claim 3, it is characterized in that: the end that described reel pull bar (4) is positioned at pyramid section (2d) is provided with end face flange (4a), and described end face flange (4a) links to each other by the outer end of bolt assembly with fanning strip positioning sleeve (6).
8. the large-scale coiler mandrel of cold-strip steel according to claim 3, it is characterized in that: the inner of described fanning strip positioning sleeve (6) is provided with flange (6a), described fanning strip (1) corresponding end is connected with cambered plate (7) by screw, the corresponding end of described panel (5) is provided with groove (5c), and the flange (6a) of described fanning strip positioning sleeve (6) cooperates with groove (5c) clamping of cambered plate (7) and panel (5) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110192610.2A CN102284556B (en) | 2011-07-11 | 2011-07-11 | Large coiler mandrel for cold-rolled strip steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110192610.2A CN102284556B (en) | 2011-07-11 | 2011-07-11 | Large coiler mandrel for cold-rolled strip steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102284556A true CN102284556A (en) | 2011-12-21 |
| CN102284556B CN102284556B (en) | 2014-06-18 |
Family
ID=45331462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110192610.2A Expired - Fee Related CN102284556B (en) | 2011-07-11 | 2011-07-11 | Large coiler mandrel for cold-rolled strip steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102284556B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291167A (en) * | 2014-10-24 | 2015-01-21 | 无锡市众程通用机电有限公司 | Connecting rod type uncoiling head |
| CN104338797A (en) * | 2014-10-24 | 2015-02-11 | 无锡市众程通用机电有限公司 | Coiling head for uncoiling machine |
| CN104338793A (en) * | 2014-10-24 | 2015-02-11 | 无锡市众程通用机电有限公司 | Winding spindle for winding unit of unwinding machine |
| CN105084128A (en) * | 2015-08-13 | 2015-11-25 | 江苏甬金金属科技有限公司 | Special second-stage expansion/shrinkage roller structure for coiling machine |
| CN106140876A (en) * | 2015-04-28 | 2016-11-23 | 宝山钢铁股份有限公司 | A kind of spool pre-set parameter optimization method based on strip coiling quality |
| CN113118240A (en) * | 2021-04-23 | 2021-07-16 | 武汉钢铁有限公司 | Coiler mandrel capable of preventing strip steel from being clamped |
| CN113996658A (en) * | 2021-09-30 | 2022-02-01 | 云南冶金昆明重工有限公司 | Quadrangular pyramid type winding drum fixing cone shaft head device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5524777A (en) * | 1978-08-14 | 1980-02-22 | Hitachi Ltd | Hydraulic driving apparatus |
| JPS5865514A (en) * | 1981-10-16 | 1983-04-19 | Hitachi Ltd | Uncoiler |
| EP0504296B1 (en) * | 1989-12-13 | 1994-06-22 | SUNDWIGER EISENHÜTTE MASCHINENFABRIK GmbH & CO. | WINDER FOR WINDING AND UNWINDING METAL STRIPS WITH STRIP TENSIONING FORCES BETWEEN 10 kN and 1000 kN |
| CN1225597A (en) * | 1996-05-24 | 1999-08-11 | Sms舒路曼-斯玛公司 | Direct-drive coiller |
| CN1406157A (en) * | 2000-02-28 | 2003-03-26 | Sms德马格英斯股份公司 | Strip winding and unwinding device with automatic centering |
| CN201257459Y (en) * | 2008-09-03 | 2009-06-17 | 武汉钢铁(集团)公司 | Coiler mandrel capable of eliminating stamp |
| CN201381140Y (en) * | 2009-03-31 | 2010-01-13 | 武汉钢铁(集团)公司 | Winding drum for novel band steel winder |
-
2011
- 2011-07-11 CN CN201110192610.2A patent/CN102284556B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5524777A (en) * | 1978-08-14 | 1980-02-22 | Hitachi Ltd | Hydraulic driving apparatus |
| JPS5865514A (en) * | 1981-10-16 | 1983-04-19 | Hitachi Ltd | Uncoiler |
| EP0504296B1 (en) * | 1989-12-13 | 1994-06-22 | SUNDWIGER EISENHÜTTE MASCHINENFABRIK GmbH & CO. | WINDER FOR WINDING AND UNWINDING METAL STRIPS WITH STRIP TENSIONING FORCES BETWEEN 10 kN and 1000 kN |
| CN1225597A (en) * | 1996-05-24 | 1999-08-11 | Sms舒路曼-斯玛公司 | Direct-drive coiller |
| CN1406157A (en) * | 2000-02-28 | 2003-03-26 | Sms德马格英斯股份公司 | Strip winding and unwinding device with automatic centering |
| CN201257459Y (en) * | 2008-09-03 | 2009-06-17 | 武汉钢铁(集团)公司 | Coiler mandrel capable of eliminating stamp |
| CN201381140Y (en) * | 2009-03-31 | 2010-01-13 | 武汉钢铁(集团)公司 | Winding drum for novel band steel winder |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291167A (en) * | 2014-10-24 | 2015-01-21 | 无锡市众程通用机电有限公司 | Connecting rod type uncoiling head |
| CN104338797A (en) * | 2014-10-24 | 2015-02-11 | 无锡市众程通用机电有限公司 | Coiling head for uncoiling machine |
| CN104338793A (en) * | 2014-10-24 | 2015-02-11 | 无锡市众程通用机电有限公司 | Winding spindle for winding unit of unwinding machine |
| CN106140876A (en) * | 2015-04-28 | 2016-11-23 | 宝山钢铁股份有限公司 | A kind of spool pre-set parameter optimization method based on strip coiling quality |
| CN105084128A (en) * | 2015-08-13 | 2015-11-25 | 江苏甬金金属科技有限公司 | Special second-stage expansion/shrinkage roller structure for coiling machine |
| CN113118240A (en) * | 2021-04-23 | 2021-07-16 | 武汉钢铁有限公司 | Coiler mandrel capable of preventing strip steel from being clamped |
| CN113996658A (en) * | 2021-09-30 | 2022-02-01 | 云南冶金昆明重工有限公司 | Quadrangular pyramid type winding drum fixing cone shaft head device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102284556B (en) | 2014-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102284556B (en) | Large coiler mandrel for cold-rolled strip steel | |
| CN101633000B (en) | Axial moving device of intermediate rolls | |
| CN101108400A (en) | Support rolling wheel composite structure of flattener | |
| CN214767823U (en) | Fixed type bending and channeling roller assembly structure and roller channeling device | |
| CN207138541U (en) | A kind of Wedge type batches reel of uncoiler | |
| CN204294620U (en) | A kind of multi-roll mill | |
| CN201061803Y (en) | Axes-holding device of strip mill | |
| CN202270775U (en) | Winding drum precise-machining tool | |
| CN202790147U (en) | Axial positioning structure for upper automobile bearing | |
| CN217474475U (en) | Uncoiler drum with large expansion and contraction range | |
| CN215543833U (en) | Double-expansion type strip uncoiling mechanism | |
| CN216297511U (en) | Quadrangular pyramid type winding drum fixing cone shaft head device | |
| CN201183063Y (en) | Convexity adjusting apparatus of multi-roller cold rolling mill | |
| US20150033816A1 (en) | Double Ended Hemming Roller | |
| CN210586472U (en) | Winding drum device | |
| CN200988154Y (en) | Aluminum row on crystal surface grinder | |
| CN202015756U (en) | Expandable copper strip crimping head | |
| CN216027195U (en) | Elastic winding drum | |
| JP2922097B2 (en) | Rolling mill | |
| CN105668282A (en) | Winding device used for textile fabric processing | |
| JP2000074051A (en) | Bearing device for strip coiler | |
| CN215557643U (en) | Automatic slitting and winding structure for digital printer | |
| CN219425295U (en) | Novel uncoiler winding drum with compensation device | |
| CN113649434A (en) | Elastic winding drum | |
| CN212310727U (en) | Stable form ring rolling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20170711 |