CA1227673A - Single pivoting bending roll, coilbox - Google Patents
Single pivoting bending roll, coilboxInfo
- Publication number
- CA1227673A CA1227673A CA000443883A CA443883A CA1227673A CA 1227673 A CA1227673 A CA 1227673A CA 000443883 A CA000443883 A CA 000443883A CA 443883 A CA443883 A CA 443883A CA 1227673 A CA1227673 A CA 1227673A
- Authority
- CA
- Canada
- Prior art keywords
- roll
- rolls
- arm
- fixed
- apron
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
- B21C47/08—Winding-up or coiling without making use of a reel or drum, the first turn being formed by a stationary guide
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
SINGLE PIVOTING BENDING ROLL, COILBOX
ABSTRACT OF THE DISCLOSURE
An improved coil box is provided wherein the incoming and bottom bending rolls are mounted in fixed relationship and wherein the offgoing bending roll and apron between the incoming and offgoing rolls are mounted on an arm which in turn is pivoted to the frame of the machine so that pivotal movement of the arm moves the offgoing bending roll and apron relative to the other two rolls to permit improved control of the bar being coiled.
ABSTRACT OF THE DISCLOSURE
An improved coil box is provided wherein the incoming and bottom bending rolls are mounted in fixed relationship and wherein the offgoing bending roll and apron between the incoming and offgoing rolls are mounted on an arm which in turn is pivoted to the frame of the machine so that pivotal movement of the arm moves the offgoing bending roll and apron relative to the other two rolls to permit improved control of the bar being coiled.
Description
~22t76~7'3 SINGLE PIVOTING BENDING ROLL, CALLBACKS
FIELD OF THE INVENTION
The present invention relates to a callbacks.
More specifically the present invention relates to an improved callbacks wherein only one roll of the cooperating bending rolls is movable during the coiling operation.
BACKGROUND TO THE INVENTION
In the manufacture of hot metal strip, specifically hot steel strip, an ingot or bar is heated to approximately 2300F. and is then reduced in thickness by rolling through a series of rolling mill stands, generally in two stages, referred to as the roughing mill and the finishing mill, respectively.
In the roughing mill a bar or ingot is reduced by a series of passes between breaker rolls or roughing until it achieves a thickness of approximately 1 inch and is formed into what is generally termed as a transfer bar.
In many mills the transfer bar is then coiled in a goiter box and is subsequently fed from the so formed coil into the finishing mill.
United States Patent No. 3,805,570, issued April 23, 1974 to Smith describes an example of a callbacks for use between the roughing mill and finishing stand of the mill. In such a device, two ~22~6~73 upper breaking rolls cooperate with a lower or bottom breaking roll to bend the transfer bar to the desired radius for coiling. The two upper rolls are moved in the illustrated patent simultaneously by the same S distance along straight line paths away from the bottom roll as the diameter of the coil is increased thereby to change the curvature applied to the transfer bar in accordance with the outer diameter of the coil being wound.
It has also been proposed to mount the two upper rolls on an arm and pivot the arm about a pivot point located on the entry side of the rolls and above the axis of the two upper rolls when the rolls are in their lowest position cooperating with the bottom bending roll. Such a pivotal mounting improves the access to the bottom bending roll when it has to be changed.
BRIEF DESCRIPTION OF THE PRESENT INVENTION
It is an object of the present invention to simplify this structure of a callbacks and thereby reduce its cost without reducing its capability of forming a coil and in fact generally providing a structure that permits improved coiling operations.
Broadly the present invention relates to an improved goiter box comprising a frame, a first fixed bending roll, and a second fixed bending roll mounted on said frame and forming an oncoming nip, an arm pivot ably mounted on said frame for pivotal movement about a pivot axis, a movable bending roll mounted on said arm and cooperating with said second bending roll to define an off going nip, an apron mounted on said arm adjacent and in fixed relation to said movable bending roll, said apron having an incoming edge adjacent said first roll, the said pivot axis on which said arm is pivoted being positioned so that pivoting movement of said arm moves said apron and said roll 12~:~76'~3 relative to said fixed rolls while keeping said incoming side of said apron adjacent the periphery of said first fixed roll BRIEF DESCRIPTION OF THE DRAWINGS
Further features, objects and advantages will be evident from the following detailed description of the preferred embodiments of the present invention taken in conjunction with the accompanying drawings in which:
Figure l is a schematic side elevation of the callbacks of the present invention showing the initial stage of forming a coil;
Figure 2 is a view similar to Figure l but showing the coil about to be transferred from the forming roll and first cradle roll onto the cradle rolls;
Figure 3 is a view similar to Figure 2 showing the position of the movable roll when winding of the coil is completed and Figure 4 shows the off going upper bending roll and apron plate pivoted into inoperative position to provide access to the other bending rolls.
DESCRIPTIO~_OF THE PREFERRED EMBODIMENTS
As shown in Figure l the goiter 10 it composed of Tao conventional indeed conveyor 12 leading from the roughing mill (not shown), a pair of movable deflector rolls 14 and 16 for directing the transfer bar 18 to the bending station 20, formed by an incoming top or first fixed bending roll 22, an off going top bending roll 24 and a bottom or second fixed bending roll 26 as will be described in more detail hereinbelow. A coil receiving section is provided with a conventional forming roll 28 and a pair of cradle rolls 30 and 32 on which the coil is formed.
Also provided on the machine is a transfer .., ~2Z'7~'7~
station generally indicated at 34 that includes a transfer arm 36 adapted to pick up a coil 38 on a mandrel 40 adapted to be received within the hollow core 42 of the coil and transfer the coil onto a stationary cradle formed by a second pair of cradle rolls 44 and 46 mounted on the machine frame. The second cradle is adapted to support the coil as the transfer bar is unwound from the coil 28 and fed into shear entry guides generally indicated at 48.
conventional peeler generally indicated at 50 is mounted for swinging movement into position to peel the transfer bar as it is unwound from the coil 38, 7 n a manner well known in the art.
Jo detailed description will be given for the majority of the parts illustrated since all era substantially standard equipment on conventional coil boxes. The bending station formed by the rolls 22, 24 and 26 forms the main subject matter of the present invention and will be descried in detail hereinbelow.
The incoming top roll 22 and the bottom roll 26 are fixed in the machine frame generally designated at 52. These rolls may be adjusted in position to accommodate wear but, during the operation of the equipment to form a coil these rolls remain fixed.
The off going movable top bending roll 24 is mounted on an arm 54 which in turn is pivoted to the frame 52 via pivot pin schematically illustrated at 56. The roll 24 is rotatable mounted on the arm 54 which is pivot able about the axis 56 by a suitable drive mechanism that may take the form of a screw jack 64. on apron 58 is mounted on the arm 54 and is interposed between the rolls 22 and 24. This apron 58 has an incoming end 60 that lies adjacent the periphery of the roll 22 and has its surface 62 adjacent thy roll 22 curved to ensure that it clears ~L.22767;~
the roll 22 when the arm 54 is pivoted around pivotal axis 56 (see Figure 3).
During operation the arm 54 is controllable moved around the pivot pin or axis 56 by means of the screw jack generally 64 which extends between the pivot point 66 on the frame and the arm 54 to accurately position the roll 24 in a manner well known in the art, i.e., the position of the roll 24 is adjusted to impart the desired curvature to the transfer bar 18 so that the diameter of curvature of the bar will substantially match with the diameter of the coil at that point in time.
The operation of the device is thus quite similar to the conventional goiter. The transfer bar is introduced via the entry conveyer 12 and is directed by the rolls 14 and 16 into the nip formed between the rolls 22 and 26 into contact with the apron 58 which deflects same against the roll 24 which in the position illustrated in Figure 3 applies a maximum curvature, i.e., minimal radius to commence the formation of the coil.
9 shown in Figure 1 the transfer bar 18 passes from the roll 24, i.e., the nip between the rolls 24 and 26, and is curved on a relatively short radius so that the lead end of the transfer bar 18 contacts the forming roll 28 in the conventional manner. The coil is then built up, the position of the roll 24 being gradually changed by the jack 64 so that the curvature imparted to the bar 18 corresponds to the desired passage of the bar through this bending roll and onto the coil, without causing back bending of the said bar, i.e., curving up around the roll 24.
Initially the coil is built up between the first or lead end cradle roll 30 and the forming roll I until suitable diameter coil is reached. Thereafter, the coil is transferred from the forming roll 28 onto the second cradle roll 32 so that the roll is cradled on 67~
the rolls 30 and 32 as shown in Figure 3. This transfer from the forming roll 28 to the cradle rolls 30 and 32 is accomplished in the normal manner generally by slowing the rotation of the cradle roll 30 relative to the speed of advance of the transfer bar 18 so that the partly formed coil 38 topples over onto the second cradle roll 32. It will be noted that the position of the cradle roll 32 is adjusted to receive the partially formed coil 38 and to complete the winding (see Figures 2 and 3).
After the coil 38 is completed, the peeler 50 is lowered to position the head end of coil 38 for unwinding in the normal manner, and the transfer arm 36 carrying the mandrel 38 is moved into a position so that the mandrel 40 may be inserted into the hollow core 42 of the coil 38, i.e., pivoted counterclockwise to about 160 from the position shown in Figures 1 and 4. The mandrel 40 extends into the core 42. When head end of coil 38 is unwound via the shear entry conveyor 48 to finishing mill the peeler 50 is raised to its ready position as shown in Fig. 1 and the arm 36 then pivots in the counterclockwise direction into the position shown in Figures 1 and 4 to position the wound coil on the second set of cradle rolls 44 and 46 from whence uncoiling is completed.
It will be apparent from Figure 4 that when the arm 54 is pivoted to its extreme counterclockwise position as shown the rolls 22 and 26 are easily accessible. This is accomplished by disconnecting the jack 64 from the arm 54 and securing it the mast on which the peeler 50 is mounted to hold out of the way. Then the arm 54 is lifted by the conventional crane normally provided in such a shop to move the arm to the position as illustrated.
The apron 58 does not require replacing as the rolls 22 and 26 are worn down. These rolls 22 and 26, while normally fixed, are adjustable in position so that when the roll, say the roll 22, has been worn and machined, its pivotal axis may be moved toward the roll 24 and 26 into an adjusted position and the same apron 58 used.
The apron 58 need not be changed as the roll size change partly because of the adjustment of the roll 22 (in the prior art techniques it was necessary to use different aprons as the size of the rolls 22 change) and partly because of the location of the apron 58 and the fact that it moves relative to the roll 22 so that the lead edge 60 is always adjacent the roll 22 and line of trajectory of the bar 18 and its central portion guides the bar into contact with the roll 24~
It will be apparent that pivoting of the arm 54 and thereby moving only the roll 24 and apron 58 permits better control of the bar 18 since the nip formed between the rolls 22 and 26 remains constant and does not open as the winding of the coil progresses, whereas in the prior art techniques where both the upper rolls moved, this gap increased and the control of the bar was diminished. Similarly by leaving the roll 22 in position part of the work or bending is always done by the roll 22 whereby the roll 22 thus takes more of the wear and the wear is then more evenly shared between the rolls 22 and 24 than was possible when both rolls 22 and 24 moved simultaneously.
It will be noted that to obtain these results the pivot point 56 of arm 54 is located on the incoming side ox the bending rolls 22, 24 and 26 and is located above the plane defined by the axis of rotation of the rolls 22 and 24 in their operative positions. Generally it is also slightly below the plane passing along the axis of rotation of the rolls ~76'~
22 and 26.
The precise location of the pivot 56 is not critical however, it must be located to permit proper movement of the roll 24 (the longer the arm 54 the better) and ensure clearance of the tip 60 of the apron 58 relative to the roll 22 when the arm 54 is moved to position the roll 24. The preferred location is illustrated.
Having described the invention, modifications will be evident to those skilled in the art without departing from the spirit of the invention as defined in the appended claims.
FIELD OF THE INVENTION
The present invention relates to a callbacks.
More specifically the present invention relates to an improved callbacks wherein only one roll of the cooperating bending rolls is movable during the coiling operation.
BACKGROUND TO THE INVENTION
In the manufacture of hot metal strip, specifically hot steel strip, an ingot or bar is heated to approximately 2300F. and is then reduced in thickness by rolling through a series of rolling mill stands, generally in two stages, referred to as the roughing mill and the finishing mill, respectively.
In the roughing mill a bar or ingot is reduced by a series of passes between breaker rolls or roughing until it achieves a thickness of approximately 1 inch and is formed into what is generally termed as a transfer bar.
In many mills the transfer bar is then coiled in a goiter box and is subsequently fed from the so formed coil into the finishing mill.
United States Patent No. 3,805,570, issued April 23, 1974 to Smith describes an example of a callbacks for use between the roughing mill and finishing stand of the mill. In such a device, two ~22~6~73 upper breaking rolls cooperate with a lower or bottom breaking roll to bend the transfer bar to the desired radius for coiling. The two upper rolls are moved in the illustrated patent simultaneously by the same S distance along straight line paths away from the bottom roll as the diameter of the coil is increased thereby to change the curvature applied to the transfer bar in accordance with the outer diameter of the coil being wound.
It has also been proposed to mount the two upper rolls on an arm and pivot the arm about a pivot point located on the entry side of the rolls and above the axis of the two upper rolls when the rolls are in their lowest position cooperating with the bottom bending roll. Such a pivotal mounting improves the access to the bottom bending roll when it has to be changed.
BRIEF DESCRIPTION OF THE PRESENT INVENTION
It is an object of the present invention to simplify this structure of a callbacks and thereby reduce its cost without reducing its capability of forming a coil and in fact generally providing a structure that permits improved coiling operations.
Broadly the present invention relates to an improved goiter box comprising a frame, a first fixed bending roll, and a second fixed bending roll mounted on said frame and forming an oncoming nip, an arm pivot ably mounted on said frame for pivotal movement about a pivot axis, a movable bending roll mounted on said arm and cooperating with said second bending roll to define an off going nip, an apron mounted on said arm adjacent and in fixed relation to said movable bending roll, said apron having an incoming edge adjacent said first roll, the said pivot axis on which said arm is pivoted being positioned so that pivoting movement of said arm moves said apron and said roll 12~:~76'~3 relative to said fixed rolls while keeping said incoming side of said apron adjacent the periphery of said first fixed roll BRIEF DESCRIPTION OF THE DRAWINGS
Further features, objects and advantages will be evident from the following detailed description of the preferred embodiments of the present invention taken in conjunction with the accompanying drawings in which:
Figure l is a schematic side elevation of the callbacks of the present invention showing the initial stage of forming a coil;
Figure 2 is a view similar to Figure l but showing the coil about to be transferred from the forming roll and first cradle roll onto the cradle rolls;
Figure 3 is a view similar to Figure 2 showing the position of the movable roll when winding of the coil is completed and Figure 4 shows the off going upper bending roll and apron plate pivoted into inoperative position to provide access to the other bending rolls.
DESCRIPTIO~_OF THE PREFERRED EMBODIMENTS
As shown in Figure l the goiter 10 it composed of Tao conventional indeed conveyor 12 leading from the roughing mill (not shown), a pair of movable deflector rolls 14 and 16 for directing the transfer bar 18 to the bending station 20, formed by an incoming top or first fixed bending roll 22, an off going top bending roll 24 and a bottom or second fixed bending roll 26 as will be described in more detail hereinbelow. A coil receiving section is provided with a conventional forming roll 28 and a pair of cradle rolls 30 and 32 on which the coil is formed.
Also provided on the machine is a transfer .., ~2Z'7~'7~
station generally indicated at 34 that includes a transfer arm 36 adapted to pick up a coil 38 on a mandrel 40 adapted to be received within the hollow core 42 of the coil and transfer the coil onto a stationary cradle formed by a second pair of cradle rolls 44 and 46 mounted on the machine frame. The second cradle is adapted to support the coil as the transfer bar is unwound from the coil 28 and fed into shear entry guides generally indicated at 48.
conventional peeler generally indicated at 50 is mounted for swinging movement into position to peel the transfer bar as it is unwound from the coil 38, 7 n a manner well known in the art.
Jo detailed description will be given for the majority of the parts illustrated since all era substantially standard equipment on conventional coil boxes. The bending station formed by the rolls 22, 24 and 26 forms the main subject matter of the present invention and will be descried in detail hereinbelow.
The incoming top roll 22 and the bottom roll 26 are fixed in the machine frame generally designated at 52. These rolls may be adjusted in position to accommodate wear but, during the operation of the equipment to form a coil these rolls remain fixed.
The off going movable top bending roll 24 is mounted on an arm 54 which in turn is pivoted to the frame 52 via pivot pin schematically illustrated at 56. The roll 24 is rotatable mounted on the arm 54 which is pivot able about the axis 56 by a suitable drive mechanism that may take the form of a screw jack 64. on apron 58 is mounted on the arm 54 and is interposed between the rolls 22 and 24. This apron 58 has an incoming end 60 that lies adjacent the periphery of the roll 22 and has its surface 62 adjacent thy roll 22 curved to ensure that it clears ~L.22767;~
the roll 22 when the arm 54 is pivoted around pivotal axis 56 (see Figure 3).
During operation the arm 54 is controllable moved around the pivot pin or axis 56 by means of the screw jack generally 64 which extends between the pivot point 66 on the frame and the arm 54 to accurately position the roll 24 in a manner well known in the art, i.e., the position of the roll 24 is adjusted to impart the desired curvature to the transfer bar 18 so that the diameter of curvature of the bar will substantially match with the diameter of the coil at that point in time.
The operation of the device is thus quite similar to the conventional goiter. The transfer bar is introduced via the entry conveyer 12 and is directed by the rolls 14 and 16 into the nip formed between the rolls 22 and 26 into contact with the apron 58 which deflects same against the roll 24 which in the position illustrated in Figure 3 applies a maximum curvature, i.e., minimal radius to commence the formation of the coil.
9 shown in Figure 1 the transfer bar 18 passes from the roll 24, i.e., the nip between the rolls 24 and 26, and is curved on a relatively short radius so that the lead end of the transfer bar 18 contacts the forming roll 28 in the conventional manner. The coil is then built up, the position of the roll 24 being gradually changed by the jack 64 so that the curvature imparted to the bar 18 corresponds to the desired passage of the bar through this bending roll and onto the coil, without causing back bending of the said bar, i.e., curving up around the roll 24.
Initially the coil is built up between the first or lead end cradle roll 30 and the forming roll I until suitable diameter coil is reached. Thereafter, the coil is transferred from the forming roll 28 onto the second cradle roll 32 so that the roll is cradled on 67~
the rolls 30 and 32 as shown in Figure 3. This transfer from the forming roll 28 to the cradle rolls 30 and 32 is accomplished in the normal manner generally by slowing the rotation of the cradle roll 30 relative to the speed of advance of the transfer bar 18 so that the partly formed coil 38 topples over onto the second cradle roll 32. It will be noted that the position of the cradle roll 32 is adjusted to receive the partially formed coil 38 and to complete the winding (see Figures 2 and 3).
After the coil 38 is completed, the peeler 50 is lowered to position the head end of coil 38 for unwinding in the normal manner, and the transfer arm 36 carrying the mandrel 38 is moved into a position so that the mandrel 40 may be inserted into the hollow core 42 of the coil 38, i.e., pivoted counterclockwise to about 160 from the position shown in Figures 1 and 4. The mandrel 40 extends into the core 42. When head end of coil 38 is unwound via the shear entry conveyor 48 to finishing mill the peeler 50 is raised to its ready position as shown in Fig. 1 and the arm 36 then pivots in the counterclockwise direction into the position shown in Figures 1 and 4 to position the wound coil on the second set of cradle rolls 44 and 46 from whence uncoiling is completed.
It will be apparent from Figure 4 that when the arm 54 is pivoted to its extreme counterclockwise position as shown the rolls 22 and 26 are easily accessible. This is accomplished by disconnecting the jack 64 from the arm 54 and securing it the mast on which the peeler 50 is mounted to hold out of the way. Then the arm 54 is lifted by the conventional crane normally provided in such a shop to move the arm to the position as illustrated.
The apron 58 does not require replacing as the rolls 22 and 26 are worn down. These rolls 22 and 26, while normally fixed, are adjustable in position so that when the roll, say the roll 22, has been worn and machined, its pivotal axis may be moved toward the roll 24 and 26 into an adjusted position and the same apron 58 used.
The apron 58 need not be changed as the roll size change partly because of the adjustment of the roll 22 (in the prior art techniques it was necessary to use different aprons as the size of the rolls 22 change) and partly because of the location of the apron 58 and the fact that it moves relative to the roll 22 so that the lead edge 60 is always adjacent the roll 22 and line of trajectory of the bar 18 and its central portion guides the bar into contact with the roll 24~
It will be apparent that pivoting of the arm 54 and thereby moving only the roll 24 and apron 58 permits better control of the bar 18 since the nip formed between the rolls 22 and 26 remains constant and does not open as the winding of the coil progresses, whereas in the prior art techniques where both the upper rolls moved, this gap increased and the control of the bar was diminished. Similarly by leaving the roll 22 in position part of the work or bending is always done by the roll 22 whereby the roll 22 thus takes more of the wear and the wear is then more evenly shared between the rolls 22 and 24 than was possible when both rolls 22 and 24 moved simultaneously.
It will be noted that to obtain these results the pivot point 56 of arm 54 is located on the incoming side ox the bending rolls 22, 24 and 26 and is located above the plane defined by the axis of rotation of the rolls 22 and 24 in their operative positions. Generally it is also slightly below the plane passing along the axis of rotation of the rolls ~76'~
22 and 26.
The precise location of the pivot 56 is not critical however, it must be located to permit proper movement of the roll 24 (the longer the arm 54 the better) and ensure clearance of the tip 60 of the apron 58 relative to the roll 22 when the arm 54 is moved to position the roll 24. The preferred location is illustrated.
Having described the invention, modifications will be evident to those skilled in the art without departing from the spirit of the invention as defined in the appended claims.
Claims (4)
1. An improved coilbox comprising a frame, a first fixed bending roll, a second fixed bending roll forming an incoming nip with said second bending roll, an arm pivotably mounted on said frame for pivoting about a pivot axis, a movable bending roll mounted on said arm and cooperating with said second bending roll to define an offgoing nip with said second roll, an apron mounted on said arm adjacent and in fixed relation to said movable roll and between said movable and said first fixed roll when said movable roll is in an operative position, said apron having an incoming edge adjacent said first roll, said pivot axis being positioned so that pivoting of said arm moves said apron and said roll relative to said fixed rolls while keeping the incoming edge of said apron adjacent said first fixed roll.
2. An improved coiler as defined in Claim 1 wherein the pivot axis of said arm is located above the plane defined by the axis of rotation of said first fixed and said movable rolls when in said operative position and below the plane defined by the axes of rotation of said first and second fixed rolls.
3. An improved coiler as defined in Claim 1 wherein said arm is moved about said pivot axis by means of a screw jack which accurately positions said movable roll relative to said fixed rolls to define the curvature of a bar being formed into a coil.
4. An improved coiler as defined in Claim 1 wherein said arm is pivotable to an inoperative position moving said apron and said movable roll away
4. An improved coiler as defined in Claim 1 wherein said arm is pivotable to an inoperative position moving said apron and said movable roll away
Claim 4 continued:
from said first and second fixed rolls to permit free access to said first and second fixed rolls for maintainance.
from said first and second fixed rolls to permit free access to said first and second fixed rolls for maintainance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000443883A CA1227673A (en) | 1983-12-21 | 1983-12-21 | Single pivoting bending roll, coilbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000443883A CA1227673A (en) | 1983-12-21 | 1983-12-21 | Single pivoting bending roll, coilbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1227673A true CA1227673A (en) | 1987-10-06 |
Family
ID=4126797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000443883A Expired CA1227673A (en) | 1983-12-21 | 1983-12-21 | Single pivoting bending roll, coilbox |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1227673A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0933147A2 (en) * | 1998-01-28 | 1999-08-04 | Sms Schloemann-Siemag Aktiengesellschaft | Method and device for transferring coils |
| US20150151345A1 (en) * | 2013-12-04 | 2015-06-04 | Sms Siemag Ag | Apparatus for and method of winding-up a metal strip, and plant for producing a metal strip windable into a coil |
| CN108213084A (en) * | 2018-01-03 | 2018-06-29 | 河钢股份有限公司承德分公司 | The progress control method and system of Coil Box |
-
1983
- 1983-12-21 CA CA000443883A patent/CA1227673A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0933147A2 (en) * | 1998-01-28 | 1999-08-04 | Sms Schloemann-Siemag Aktiengesellschaft | Method and device for transferring coils |
| EP0933147A3 (en) * | 1998-01-28 | 2001-06-27 | SMS Demag AG | Method and device for transferring coils |
| US20150151345A1 (en) * | 2013-12-04 | 2015-06-04 | Sms Siemag Ag | Apparatus for and method of winding-up a metal strip, and plant for producing a metal strip windable into a coil |
| US9566626B2 (en) * | 2013-12-04 | 2017-02-14 | Sms Group Gmbh | Apparatus for and method of winding-up a metal strip, and plant for producing a metal strip windable into a coil |
| CN108213084A (en) * | 2018-01-03 | 2018-06-29 | 河钢股份有限公司承德分公司 | The progress control method and system of Coil Box |
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| Date | Code | Title | Description |
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| MKEX | Expiry |