CN1318157C - Three roller plate bending machine with adjustable bottom roller horizontal central distance - Google Patents
Three roller plate bending machine with adjustable bottom roller horizontal central distance Download PDFInfo
- Publication number
- CN1318157C CN1318157C CNB2004100608386A CN200410060838A CN1318157C CN 1318157 C CN1318157 C CN 1318157C CN B2004100608386 A CNB2004100608386 A CN B2004100608386A CN 200410060838 A CN200410060838 A CN 200410060838A CN 1318157 C CN1318157 C CN 1318157C
- Authority
- CN
- China
- Prior art keywords
- roll
- centre
- lower roll
- short screw
- bending machine
- 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.)
- Expired - Fee Related
Links
- 238000005452 bending Methods 0.000 title claims abstract description 19
- 238000005242 forging Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The present invention relates to a forging apparatus-a three-roller bending machine for bending and processing metal sheets, concretely to a three-roller bending machine of which the central distance of the two lower rollers can be adjusted in the horizontal direction. The three-roller bending machine of which the central distance of the lower rollers can be adjusted horizontally comprises a lathe bed (6), a machine frame (18), an upper roller (19), a lower roller device, a main transmission mechanism (20) and a horizontal drive device (17) of the lower rollers, wherein the lower roller device comprises two lower rollers (1), a support seat (16) of the lower rollers; both ends of each lower roller is fixedly connected with the support seat (16) of the lower rollers by bearings. The present invention is characterized in that a horizontal adjustment device for the central distance is arranged at the outer end of the support seat (16) of the lower rollers. The present invention has the advantages of simple structure, adjustable central distance in different shifts, convenient adjustment and low cost.
Description
Technical field
The present invention relates to sheet metal is carried out the forging equipment of bending machining---three rolls plate bending machine, be specifically related to the adjustable in the horizontal direction three rolls plate bending machine of two lower roll centre-to-centre spacing.
Background technology
The adjustable in the horizontal direction three rolls plate bending machine of existing two lower roll centre-to-centre spacing has two kinds of forms, and a kind of is that lower roll does not have backing roll, and two lower rolls are adjusted the centre-to-centre spacing of two lower rolls respectively in the horizontal direction by two cover hydraulic pressure or mechanical actuation device, and control the parallel of two lower rolls.The advantage of this form is easy to adjust, and is stepless adjustment; Shortcoming is that the parallel accuracy of two rollers is relatively poor, and the error of two cover drive units may superpose in the same way, and two lower rolls can not be fully synchronously in moving, and workpiece and roll surface have the possibility that slides over each other, and the horizontal component that every cover drive unit bears is bigger, can not cancel each other.
Another kind is that two lower rolls carry out moving of horizontal direction by hydraulic pressure or mechanical horizontal drive apparatus, and two lower rolls and back-up chock move by bearing pin or Bolt Connection together, and bearing pin and thread connector are in the centre of two lower rolls.By artificial degree of tightness (extract or insert) connector, adjust the centre-to-centre spacing of two lower rolls and backing roll, the advantage of this form is that two lower rolls and back-up chock connect together mobile, the depth of parallelism remains unchanged, the horizontal component of two lower rolls and backing roll is born by connector can cancel each other part or all, and the horizontal component that horizontal drive apparatus bears is less.Shortcoming is that connector (bearing pin, bolt or screw mandrel) is in the middle of two lower rolls, oxide skin and dust are more, cause the corrosion of connector, and intermediate space is narrow, manually-operated inconvenience, the screw thread of bolt is long or bolt kind quantity is more, needs during adjustment connector is taken apart fully, connects after having adjusted again.The cushion block of centre-to-centre spacing lengthening usefulness gets rusty easily or loses.Backing roll is a strutbeam, and promptly each backing roll has two bearing blocks, lays respectively at the bearing place at backing roll two ends.The adjustment of lower roll centre-to-centre spacing has only 2 grades, and backing roll can have one or more groups, owing to adjust inconvenience, this mode is used not general.
Summary of the invention
At above-mentioned deficiency, the object of the present invention is to provide a kind of adjustable three rolls plate bending machine of lower roll centre-to-centre spacing level easy to adjust.
To achieve these goals, technical scheme of the present invention is: the three rolls plate bending machine that lower roll centre-to-centre spacing level is adjustable, it comprises lathe bed 6, frame 18, top roll 19, following roller arrangement, main drive gear 20, lower roll horizontal drive apparatus 17, following roller arrangement comprises lower roll 1, bottom roll bearing block 16, fixedlyed connected with bottom roll bearing block 16 by bearing in the two ends of lower roll 1, lower roll 1 is 2; One of them the outer end of two bottom roll bearing blocks 16 at two ends of 2 lower rolls 1 is connected with lower roll horizontal drive apparatus 17, and lower roll horizontal drive apparatus 17 is connected with lathe bed 6; It is characterized in that: the outer end of two bottom roll bearing blocks 16 at the two ends of another lower roll 1 is provided with the centre-to-centre spacing leveling device; Described centre-to-centre spacing leveling device comprises nut, short screw, adjustment cushion block, have screw vent on two bottom roll bearing blocks 16 at the two ends of another lower roll 1, short screw passes the bottom screw vent of a bottom roll bearing block 16, and be fixed on the bottom roll bearing block 16 that is connected with lower roll horizontal drive apparatus 17, nut is on the short screw of bottom roll bearing block 16 outer ends of being passed, the adjustment cushion block is a U-shaped, adjusts cushion block and is inserted on the short screw.
Short screw is provided with draw-in groove, gib 15 is a U-shaped, and be stuck in the short screw head draw-in groove, between gib 15 and adjustment cushion block 11, place hydraulic pre-tightening device, hydraulic pre-tightening device is made up of cylinder body 14, annular plunger 13, gib 15, short screw passes the endoporus of cylinder body 14, and annular plunger 13 is positioned at cylinder body 14.
The present invention can adjust lower roll convex-concave degree in the horizontal direction by the hydraulic pressure or the mechanical horizontal drive apparatus of back-up chock, and local fine setting lower roll centre-to-centre spacing plays the effect of pre-bending, improves the precision of workpiece or remedies top roll and the insufficient rigidity of lower roll.Backing roll has improved the strength and stiffness of lower roll greatly, can make down roller diameter less, and two lower roll centre-to-centre spacing are less, improves the veneer reeling machine performance.Lower roll centre-to-centre spacing can be adjusted easily, promptly only adjusts the centre-to-centre spacing of bottom roll bearing block, and the cylindrical workpieces of suitable length and the steel plate of big thickness range be rolling of high-strength steel sheet particularly.
The present invention adopts as Fig. 4, Fig. 5, structure shown in Figure 6, simple in structure, centre-to-centre spacing can many grades adjustment, easy to adjust, cost is low.
The present invention both had been applicable to symmetrical expression, be applicable to that also top roll or lower roll horizontal adjusting are the three rolls plate bending machine of asymmetric, when lower roll has backing roll, backing roll can be simply supported beam, also can be cantilever beam, be that backing roll is distributed in the back-up chock both sides and becomes cantilever position, can reduce the quantity of back-up chock, have only half of simply supported beam with cantilever beam.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is that Fig. 1 is along A-A line cutaway view (embodiments of the invention 1)
Fig. 3 is that Fig. 1 is along B-B line cutaway view (embodiments of the invention 2)
Fig. 4 is 3 structural representations of embodiments of the invention
Fig. 5 is 4 structural representations of embodiments of the invention
Fig. 6 is 5 structural representations of embodiments of the invention
Fig. 7 be embodiments of the invention 5 in the enlarged drawing of hydraulic pre-tightening device
Among the figure: 1-lower roll, 2-backing roll, 3-back-up chock, 4-guide pin bushing, the 5-plunger, 6-lathe bed, 7-support, 8-guide rail, the 9-nut, the 10-screw rod, 11-adjusts cushion block, the 12-short screw, 13-annular plunger, 14-cylinder body, the 15-gib, 16-bottom roll bearing block, 17-lower roll horizontal drive apparatus, the 18-frame, 19-top roll, 20-main drive gear.
The specific embodiment
Embodiment 1:
As shown in Figure 1, the three rolls plate bending machine that lower roll centre-to-centre spacing level is adjustable, it comprises lathe bed 6, frame 18, top roll 19, following roller arrangement, backing roll device, main drive gear 20, lower roll horizontal drive apparatus 17, following roller arrangement comprises lower roll 1, bottom roll bearing block 16, fixedlyed connected with bottom roll bearing block 16 by bearing in the two ends of lower roll 1, lower roll 1 is 2; 2 lower rolls 1 have 1-10 group backing roll device, and every group of backing roll device formed and laid respectively at the below of 2 lower rolls 1 by 2 backing roll devices; Each backing roll device comprises 1 or 3,2 or 1 backing roll 2 of 2 back-up chocks; (backing roll is a cantilever beam) fixed 2 backing rolls 2 when back-up chock 3 was 1 on the back-up chock 3, and (backing roll is a simply supported beam) fixed 1 backing roll 2 when back-up chock 3 was 2 on the back-up chock 3; The outer end of the back-up chock 3 of every group of backing roll device is provided with the centre-to-centre spacing leveling device of 2 back-up chocks 3.
As shown in Figure 2, described centre-to-centre spacing leveling device is hydraulic means or mechanical horizontal drive apparatus, hydraulic means or mechanical horizontal drive apparatus are fixed on the lathe bed 6 by support 7, the outer face A of the hydraulic cylinder of hydraulic means or the moving component of mechanical horizontal drive apparatus and the back-up chock 3 or outer face B of flange contacts or fixing, under the effect of centre-to-centre spacing leveling device, can adjust lower roll convexity in the horizontal direction, bear horizontal component.Be when contact, back-up chock 3 and bottom roll bearing block 16 move respectively, and for fixedly the time, back-up chock 3 and bottom roll bearing block 16 are mobile simultaneously.The machinery horizontal drive apparatus is a screw pair, can be electronic also can be manual.Do not draw the centre-to-centre spacing leveling device among the figure.
Embodiment 2:
As shown in Figure 3, described centre-to-centre spacing leveling device is a hydraulic means, the plunger 5 of the hydraulic cylinder of hydraulic means is fixed on the support 7 by nut 9, support 7 is fixed on the lathe bed 6 by bolt, key, the cylinder body of back-up chock 3 double as horizontal drive plunger cases among the figure, plunger 5 passes guide pin bushing 4, and guide pin bushing 4 is fixed on the cylinder body, under the effect of plunger case, can adjust lower roll convexity in the horizontal direction, bear horizontal component.All be provided with hydraulic means on 2 back-up chocks 3 of every group of backing roll device.
If nut is made in guide pin bushing 4 changes, plunger 5 becomes makes rotatable screw rod, can become the horizontal mechanical drive unit.Dust cover with plunger between the back-up chock does not draw.
Embodiment 3:
As shown in Figure 4, described centre-to-centre spacing leveling device is a nut 9, screw rod 10, adjust cushion block 11, have screw vent on 2 back-up chocks 3 of every group of backing roll device, screw rod 10 runs through the screw vent of 2 back-up chocks, one end is established flange head, the other end is provided with screw thread and is rotary with nut 9, and the degree of tightness of nut 9 is adjusted cushion block 11 and had four in the outer end of back-up chock 3, be U-shaped, opening is adjusted cushion block 11 and is inserted on the screw rod 10 down, needn't withdraw from screw rod after nut 9 becomes flexible, adjust cushion block 11 and can adjust the position arbitrarily, change the size of lower roll centre-to-centre spacing L, if four adjustment pad thickness are identical, lower roll centre-to-centre spacing L has five grades.
Embodiment 4:
As shown in Figure 5, described centre-to-centre spacing leveling device is a nut 9, short screw 12, adjust cushion block 11, have screw vent on one of 2 back-up chocks 3 of every group of backing roll device, have tapped blind hole on another back-up chock 3, short screw 12 passes the bottom screw vent of a back-up chock 3, and be fixed in the blind hole of internal thread of another back-up chock 3, adjust cushion block 11 and have 3, be U-shaped, opening down, adjust cushion block 11 and be inserted on the short screw 12, the degree of tightness of nut 9 is in the outer end of the back-up chock 3 that is passed, after nut 9 becomes flexible, adjust cushion block 11 and can adjust the position arbitrarily, change the size of lower roll centre-to-centre spacing L, if three adjustment pad thickness are identical, lower roll centre-to-centre spacing L has fourth gear.
Embodiment 5:
As Fig. 6, shown in Figure 7, described centre-to-centre spacing leveling device is for being nut 9, short screw 12, adjust cushion block 11, hydraulic pre-tightening device, have screw vent on one of 2 back-up chocks 3 of every group of backing roll device, have tapped blind hole on another back-up chock 3, short screw 12 passes the bottom screw vent of a back-up chock 3, and be fixed in the blind hole of internal thread of another back-up chock 3, adjust cushion block 11 and have 3, be U-shaped, opening down, adjusting cushion block 11 is inserted on the short screw 12, gib 15 is a U-shaped, opening down and be stuck in the short screw 12 head draw-in grooves, between gib 15 and adjustment cushion block 11, place hydraulic pre-tightening device, hydraulic pre-tightening device is by cylinder body 14, annular plunger 13, gib 15 is formed, short screw 12 passes the endoporus of cylinder body 14, annular plunger 13 is positioned at cylinder body 14, the gap appears between pressurization back nut 9 and the adjustment cushion block 11, degree of tightness nut 9 in the breach of pre-tightening apparatus and adjustment cushion block adjacent, pretightning force acts on gib 15 and adjusts between the cushion block 11, make short screw 12 elasticity elongated, remove the pretension reinforcing, connector is fastening with 2 back-up chocks 3 and adjustment cushion block automatically.
Hydraulic pre-tightening device can replace with modes such as pneumatic, electric heating, machineries.Use modes such as hydraulic pressure, pneumatic, electric heating, machinery to 2 back-up chocks 3 with adjust cushion block and carry out afterburning pretension, afterburning pretension back nut the gap occurs with the plane of being close to, nut or the easier usefulness of bearing pin that is inserted in the hole are openhanded moving, this moment, nut can change the gib that is inserted in connector groove and the cannelure into, occurred can extracting out or insert behind the gap.
Embodiment 6:
The three rolls plate bending machine that lower roll centre-to-centre spacing level is adjustable, it comprises lathe bed 6, frame 18, top roll 19, following roller arrangement, main drive gear 20, lower roll horizontal drive apparatus 17, following roller arrangement comprises lower roll 1, bottom roll bearing block 16, fixedlyed connected with bottom roll bearing block 16 by bearing in the two ends of lower roll 1, lower roll 1 is 2; The outer end of bottom roll bearing block 16 is provided with the centre-to-centre spacing leveling device.The centre-to-centre spacing leveling device can be the version of embodiment 3, embodiment 4, embodiment 5, and just backing roll 2 and the back-up chock 3 of embodiment 3, embodiment 4, embodiment 5 correspond to bottom roll bearing block 16.
Embodiment 7:
The three rolls plate bending machine that lower roll centre-to-centre spacing level is adjustable, it comprises lathe bed 6, frame 18, top roll 19, following roller arrangement, backing roll device, main drive gear 20, lower roll horizontal drive apparatus 17, following roller arrangement comprises lower roll 1, bottom roll bearing block 16, fixedlyed connected with bottom roll bearing block 16 by bearing in the two ends of lower roll 1, lower roll 1 is 2; The outer end of bottom roll bearing block 16 is provided with the centre-to-centre spacing leveling device.The centre-to-centre spacing leveling device can be the version of embodiment 3, embodiment 4, embodiment 5, and just backing roll 2 backing rolls 2 and the back-up chock 3 with embodiment 3, embodiment 4, embodiment 5 changes bottom roll bearing block 16 into.
The outer end of the back-up chock 3 of every group of backing roll device is provided with the centre-to-centre spacing leveling device.The centre-to-centre spacing leveling device can be the version of embodiment 1, embodiment 2, embodiment 3, embodiment 4, embodiment 5.
When adopting embodiment 1 version, 2 lower rolls 1 have 1-10 group backing roll device, and every group of backing roll device formed and laid respectively at the below of 2 lower rolls 1 by 2 backing roll devices; Each backing roll device comprises 1 or 3,2 of 2 back-up chocks or 1 backing roll 2; (backing roll is a cantilever beam) fixed 2 backing rolls 2 when back-up chock 3 was 1 on the back-up chock 3, and (backing roll is a simply supported beam) fixed 1 backing roll 2 when back-up chock 3 was 2 on the back-up chock 3; The outer end of the back-up chock 3 of every group of backing roll device is provided with the centre-to-centre spacing leveling device of 2 back-up chocks 3.
The lower roll of the version of employing embodiment 3, embodiment 4, embodiment 5 and the centre-to-centre spacing leveling device of backing roll can be by increasing, subtract the adjustment pad between lower roll and back-up chock, adjust lower roll convex-concave degree in the horizontal direction, local fine setting lower roll centre-to-centre spacing.
Claims (2)
1. the adjustable three rolls plate bending machine of lower roll centre-to-centre spacing level, it comprises lathe bed (6), frame (18), top roll (19), following roller arrangement, main drive gear (20), lower roll horizontal drive apparatus (17), following roller arrangement comprises lower roll (1), bottom roll bearing block (16), fixedlyed connected with bottom roll bearing block (16) by bearing in the two ends of lower roll (1), lower roll (1) is 2; One of them the outer end of two bottom roll bearing blocks (16) at two ends of 2 lower rolls (1) is connected with lower roll horizontal drive apparatus (17), and lower roll horizontal drive apparatus (17) is connected with lathe bed (6); It is characterized in that: the outer end of two bottom roll bearing blocks (16) at the two ends of another lower roll (1) is provided with the centre-to-centre spacing leveling device; Described centre-to-centre spacing leveling device comprises nut, short screw, adjustment cushion block, have screw vent on two bottom roll bearing blocks (16) at the two ends of another lower roll (1), short screw passes the bottom screw vent of a bottom roll bearing block (16), and be fixed on the bottom roll bearing block (16) that is connected with lower roll horizontal drive apparatus (17), nut is on the short screw of bottom roll bearing block (16) outer end of being passed, the adjustment cushion block is a U-shaped, adjusts cushion block and is inserted on the short screw.
2. the adjustable three rolls plate bending machine of lower roll centre-to-centre spacing level according to claim 1, it is characterized in that: short screw is provided with draw-in groove, gib (15) is a U-shaped, and be stuck in the short screw head draw-in groove, between gib (15) and adjustment cushion block (11), place hydraulic pre-tightening device, hydraulic pre-tightening device is made up of cylinder body (14), annular plunger (13), gib (15), and short screw passes the endoporus of cylinder body (14), and annular plunger (13) is positioned at cylinder body (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100608386A CN1318157C (en) | 2004-09-13 | 2004-09-13 | Three roller plate bending machine with adjustable bottom roller horizontal central distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100608386A CN1318157C (en) | 2004-09-13 | 2004-09-13 | Three roller plate bending machine with adjustable bottom roller horizontal central distance |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100795057A Division CN100453196C (en) | 2004-09-13 | 2004-09-13 | Three-roller veneer reeling machine with adjusting lower-roller centering distance horizontally |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1586756A CN1586756A (en) | 2005-03-02 |
| CN1318157C true CN1318157C (en) | 2007-05-30 |
Family
ID=34603595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100608386A Expired - Fee Related CN1318157C (en) | 2004-09-13 | 2004-09-13 | Three roller plate bending machine with adjustable bottom roller horizontal central distance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1318157C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006029491B3 (en) * | 2006-06-27 | 2008-04-03 | Sms Meer Gmbh | Internal mold tool for forming a sheet metal to a pipe |
| CN102632115B (en) * | 2011-02-11 | 2015-12-02 | 青岛德固特节能装备股份有限公司 | A kind of three rolls plate bending machine |
| CN105013858A (en) * | 2015-07-06 | 2015-11-04 | 浙江大大不锈钢有限公司 | Steel-plate tube coiling machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5115658A (en) * | 1990-04-12 | 1992-05-26 | Chr. Haeusler Ag | Shaping machine for cylindrically bending a plate |
| JPH06182449A (en) * | 1992-12-18 | 1994-07-05 | Fuji Car Mfg Co Ltd | Bending roll machine |
| JPH0952126A (en) * | 1995-08-10 | 1997-02-25 | Kurimoto Ltd | Device for supporting inside of product for bending roll |
| CN1253050A (en) * | 1998-11-04 | 2000-05-17 | 川崎制铁株式会社 | Tube shaping equipment using tube bending roll, its shaping method and tube |
| CN2379231Y (en) * | 1997-01-15 | 2000-05-24 | 湖北重型机器集团有限公司 | Hydraulic type three roller machine for bending metal sheet |
-
2004
- 2004-09-13 CN CNB2004100608386A patent/CN1318157C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5115658A (en) * | 1990-04-12 | 1992-05-26 | Chr. Haeusler Ag | Shaping machine for cylindrically bending a plate |
| JPH06182449A (en) * | 1992-12-18 | 1994-07-05 | Fuji Car Mfg Co Ltd | Bending roll machine |
| JPH0952126A (en) * | 1995-08-10 | 1997-02-25 | Kurimoto Ltd | Device for supporting inside of product for bending roll |
| CN2379231Y (en) * | 1997-01-15 | 2000-05-24 | 湖北重型机器集团有限公司 | Hydraulic type three roller machine for bending metal sheet |
| CN1253050A (en) * | 1998-11-04 | 2000-05-17 | 川崎制铁株式会社 | Tube shaping equipment using tube bending roll, its shaping method and tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1586756A (en) | 2005-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH05337512A (en) | Universal type roll stand | |
| KR101591563B1 (en) | Roll stand | |
| CN107626781B (en) | Adjustable four-roller plate bending machine | |
| CN101549354B (en) | Six-roller mill | |
| CN100453196C (en) | Three-roller veneer reeling machine with adjusting lower-roller centering distance horizontally | |
| CN1318157C (en) | Three roller plate bending machine with adjustable bottom roller horizontal central distance | |
| CN106238480B (en) | Hydraulic type steel pipe drawing machine | |
| CN207770536U (en) | A kind of four-roll plate bending machine | |
| CN210497808U (en) | Roll bending machine | |
| CN213887599U (en) | Aluminum plate rolling device | |
| US3657913A (en) | Crown control | |
| CN1340388A (en) | Rolling mill and its rolling method | |
| CN100591489C (en) | Crankshaft scribing roller bracket | |
| CN212285384U (en) | Strip steel uncoiling transverse crease leveling device | |
| US4614103A (en) | Rolling mill | |
| JP4733629B2 (en) | Roll stand and roll stand adjustment method | |
| CN203725539U (en) | Leveler capable of eliminating transverse arches | |
| CA2533693A1 (en) | Rolling device | |
| US6223575B1 (en) | Tube forming machine using three point bending | |
| CN213288217U (en) | Stainless steel plate rolling mechanism | |
| US4218907A (en) | Rolling mill bearing assembly | |
| CN210231020U (en) | A high accuracy cold rolling mill for steel pipe processing | |
| CN100395045C (en) | Wedge horizontal roller type guid plate equipment | |
| CN216095774U (en) | Three-roller edge rolling machine | |
| US20090064750A1 (en) | Device for Adapting Working Rolls to a Rolling Line |
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 | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Tai'an Hualu Forge Press Co., Ltd. Assignor: Zhang Xianrong Contract fulfillment period: 2008.10.8 to 2013.10.8 Contract record no.: 2008370000025 Denomination of invention: Three-roll plate bending machine capable of adjusting horizontally central distance of lower roll Granted publication date: 20070530 License type: Exclusive license Record date: 20081015 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.10.8 TO 2013.10.8; CHANGE OF CONTRACT Name of requester: TAIAN HUALU FORGING MACHINE TOOL CO., LTD. Effective date: 20081015 |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhang Xianrong Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Xianrong Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070530 Termination date: 20180913 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |