CN218024523U - Deviation correcting system for steel strip galvanizing production line - Google Patents

Abstract

The utility model discloses a steel band galvanizing line deviation correcting system, the roller cover of rectifying has cylindric protective sheath, and this protective sheath divide into two half a section of thick bamboos of symmetry, and this deviation correcting system is equipped with first connecting piece and second connecting piece and links together two half a section of thick bamboos of protective sheath. When the steel band takes place the skew, for example the steel band when moving to left, electric putter lifts the roller left end of rectifying, and the roller left end of rectifying can not wear and tear, and the protective sheath is as friction spare, applys the power of rectifying to the right to the steel band. The workman only needs to pull out first connecting piece and second connecting piece after the protective sheath damages, just can lift old protective sheath off from rectifying the roller, then sheathes new protective sheath in rectifying roller periphery side, and the reuse links together two half a section of thick bamboos of new protective sheath, easy operation, and it is short to consume time. Because it is short consuming time to change the protective sheath, the steel band also only takes place the skew in the short time even take place the skew in this section of time, and the roller of rectifying just corrects the steel band after the protective sheath is changed, is difficult to lead to the decline of quality.

Description

Deviation correcting system for steel strip galvanizing production line

Technical Field

The utility model relates to a steel band galvanizing line technical field, concretely relates to steel band galvanizing line deviation correcting system.

Background

The steel strip galvanizing production line is sequentially provided with a steel strip uncoiling device, a steel strip buffering loop device, a steel strip coating device and the like from back to front, and uncoiling, buffering, coating and the like are respectively carried out on the steel strip. The steel belt moves from back to front in the steel belt galvanizing production line, and the deviation caused by the problems of uneven stress and the like is difficult to avoid. In order to correct the deviated steel strip, a deviation correcting system can be arranged between any two devices on the steel strip galvanizing production line, for example, the deviation correcting system is arranged between the steel strip buffering loop device and the steel strip coating device, the deviation correcting system comprises a rear tension roller and a front deviation correcting device, the tension roller provides tension for the steel strip, and the deviation correcting device can detect whether the steel strip deviates or not and correct the deviated steel strip. Patent document CN201815451U discloses a deviation correcting device, which is provided with a position sensor above a steel belt, a deviation correcting roller in front of the position sensor, and an electric push rod connected to an end of the deviation correcting roller, and the device includes a controller electrically connected to the position sensor and the electric push rod, wherein the steel belt passes below the position sensor and then passes above the deviation correcting roller, the position sensor detects a position of the steel belt, when a deviation of the steel belt is detected, for example, when the steel belt is detected to be deviated to the left, the position sensor sends a left deviation signal to the controller, the controller receives the left deviation signal to control the electric push rod to lift a left end of the deviation correcting roller, so that the left end of the deviation correcting roller swings to the upper right, the deviation correcting roller serves as a friction member, the left end of the deviation correcting roller rubs a left side wall of the steel belt, and applies a deviation correcting force to the steel belt to move to the right until the steel belt does not deviate to the left. The deviation rectifying roller is easy to wear because of the friction with the side wall of the steel belt when in deviation rectification, and needs to be replaced in time after being damaged. The workman need be separated old roller and the electric putter of rectifying, just can take off old roller of rectifying, after changing new roller of rectifying, still need be connected new roller of rectifying and electric putter, complex operation, consume long time, because steel band galvanizing line can not shut down, if the steel band takes place the skew in this section of time, will lead to the quality to descend because of can't be corrected for a long time.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a steel band galvanizing line rectifying system's hardware architecture, after software engineer programs the controller in this hardware architecture, the workman just can accomplish the change of friction spare through simple operation.

In order to solve the above technical problem, the deviation rectifying system of the steel strip galvanizing production line of the utility model is provided with a left and a right two optical signal transmitters which downwards transmit optical signals above the left and right sides of the steel strip respectively, a left and a right two optical signal receivers below the left and right sides of the steel strip respectively, the left and right two optical signal receivers are respectively aligned with the left and the right two optical signal transmitters and respectively receive the optical signals transmitted by the two optical signal transmitters, a deviation rectifying roller is arranged in front of the two optical signal transmitters and the two optical signal receivers for the steel strip to pass through from the upper part, the left and the right two ends of the deviation rectifying roller are respectively connected with a left and a right two electric push rods, the left and the right two electric push rods respectively correct the deviated steel strip by lifting up the left and the right two ends of the deviation rectifying roller, the deviation rectifying system comprises a controller which is electrically connected with the two optical signal receivers and the two electric push rods, the cylindrical protective sleeve is sleeved on the whole peripheral side of the deviation rectifying roller of the deviation rectifying system, the protective sleeve is divided into two symmetrical half cylinders along two buses on the outer surface of the cylinder, the two half cylinders are spliced together to form the cylindrical protective sleeve, the end face of the first half cylinder is provided with a first connecting hole and a second connecting hole, the same end face of the second half cylinder is provided with a third connecting hole and a fourth connecting hole, the same end face of the deviation rectifying roller is provided with a fifth connecting hole and a sixth connecting hole, the deviation rectifying system is provided with a first connecting piece and a second connecting piece, each connecting piece is provided with three connecting columns, the three connecting columns of the first connecting piece are respectively inserted into the first connecting hole, the third connecting hole and the fifth connecting hole, and the three connecting columns of the second connecting piece are respectively inserted into the second connecting hole, the fourth connecting hole and the sixth connecting hole, so that the two half cylinders of the protective sleeve are connected together.

Furthermore, the first connecting holes are respectively provided with a left connecting hole and a right connecting hole which are respectively arranged on the left end surface and the right end surface of the first half cylinder of the protective sleeve, the third connecting holes are respectively provided with a left connecting hole and a right connecting hole which are respectively arranged on the left end surface and the right end surface of the second half cylinder of the protective sleeve, the fifth connecting holes are respectively provided with a left connecting hole and a right connecting hole which are respectively arranged on the left end surface and the right end surface of the rectification roller, the first connecting piece is respectively provided with a left connecting hole and a right connecting hole, three connecting columns of the left first connecting piece are respectively inserted into the left first connecting hole, the Zuo Di three connecting holes and the left fifth connecting hole, and three connecting columns of the right first connecting piece are respectively inserted into the right first connecting hole, the right third connecting hole and the right fifth connecting hole.

Furthermore, the second connecting holes are respectively provided with a left connecting hole and a right connecting hole which are respectively arranged on the left end face and the right end face of the first half cylinder of the protective sleeve, the fourth connecting holes are respectively provided with a left connecting hole and a right connecting hole which are respectively arranged on the left end face and the right end face of the second half cylinder of the protective sleeve, the sixth connecting holes are respectively provided with a left connecting hole and a right connecting hole which are respectively arranged on the left end face and the right end face of the rectification roller, the second connecting piece is respectively provided with a left connecting hole and a right connecting hole, three connecting columns of the Zuo Di two connecting pieces are respectively inserted into the Zuo Di two connecting holes, the Zuo Di four connecting holes and the left sixth connecting hole, and three connecting columns of the right second connecting piece are respectively inserted into the right second connecting hole, the right fourth connecting hole and the right sixth connecting hole.

Furthermore, a cylindrical first accommodating groove in the left-right direction is formed in the circle center of the left end of the rectifying roller, the notch of the first accommodating groove faces to the left, a cylindrical first supporting piece in the left-right direction is movably mounted in the first accommodating groove, the first supporting piece can rotate around the axis of the first supporting piece relative to the groove wall of the first accommodating groove and can move left and right relative to the groove wall of the first accommodating groove, the left end of the first supporting piece extends out of the first accommodating groove towards the left and is hinged to the upper end of the left electric push rod, a first convex part for blocking the left end of the rectifying roller is arranged on the outer peripheral side of the left end of the first supporting piece, the left end of the rectifying roller is connected with the left electric push rod in such a way, and the left electric push rod lifts the first supporting piece upwards to lift the left end of the rectifying roller so that the first supporting piece moves left relative to the groove wall of the first accommodating groove.

Furthermore, a cylindrical second accommodating groove in the left-right direction is formed in the circle center of the right end of the correction roller, the notch of the second accommodating groove faces the right, a cylindrical second supporting piece in the left-right direction is movably mounted in the second accommodating groove, the second supporting piece can rotate around the axis of the second supporting piece relative to the groove wall of the second accommodating groove and can move left and right relative to the groove wall of the second accommodating groove, the right end of the second supporting piece extends out of the second accommodating groove towards the right, the upper end of the right electric push rod is hinged to the upper end of the right electric push rod, a second convex part for blocking the right end of the correction roller is arranged on the outer peripheral side of the right end of the second supporting piece, the right end of the correction roller is connected with the right electric push rod in this way, and the right electric push rod lifts the second supporting piece upwards, so that the right end of the correction roller moves right relative to the groove wall of the second supporting piece.

Furthermore, a tension roller is arranged behind the deviation correction roller to enable a steel strip to pass through from the top, a reversing roller is arranged between the tension roller and the deviation correction roller to enable the steel strip to pass through from the bottom, a left support frame and a right support frame are respectively arranged at the left end and the right end of the tension roller, a left sliding chute and a right sliding chute are respectively arranged on the left support frame and the right support frame, the left sliding chute and the right sliding chute are respectively extended into the left sliding chute and the right sliding chute and can respectively move up and down relative to the left sliding chute and the right sliding chute, a first tension spring in a compression state is arranged in the left sliding chute, the upper end of the first tension spring upwards supports against the left end of the tension roller, upward tension is applied to the steel strip through the tension roller, a second tension spring in a compression state is arranged in the right sliding chute, the upper end of the second tension spring upwards supports against the right end of the tension roller, and upward tension is applied to the steel strip through the tension roller.

Furthermore, a first sliding block capable of sliding up and down along the left sliding groove is clamped between the upper end of the first tension spring and the left end of the tension roller, the first tension roller upwards abuts against the left end of the tension roller through the first sliding block, a second sliding block capable of sliding up and down along the right sliding groove is clamped between the upper end of the second tension spring and the right end of the tension roller, and the second tension roller upwards abuts against the right end of the tension roller through the second sliding block.

After a software engineer programs a controller in the hardware structure, when a steel belt deviates to the left, for example, the steel belt deviates to the left, the steel belt is blocked between a left light signal transmitter and a left light signal receiver, so that the left light signal receiver cannot receive a light signal transmitted by the left light signal transmitter, the left light signal receiver transmits a steel belt left deviation signal to the controller, the controller receives the steel belt left deviation signal, and controls a left electric push rod to lift the left end of the deviation rectifying roller, so that the left end of the deviation rectifying roller swings to the upper right. The workman need not to change the roller of rectifying, only need damage the back at the protecting jacket, in time change the protective sheath, the workman pulls out first connecting piece and second connecting piece, just can break off two half section of thick bamboos of old protective sheath off with the fingers and thumb, lift off old protective sheath from the roller of rectifying, then sheathes in new protective sheath at the roller periphery side of rectifying, reuse first connecting piece and second connecting piece link together two half sections of a section of thick bamboos of new protective sheath, accomplish the change of protective sheath so far, easy operation, it is short to consume the time. Because it is consuming time short to change the protective sheath, the steel band also only takes place the skew in the short time even take place the skew in this section of time, and the roller of rectifying just can correct the steel band after the protective sheath is changed, is difficult to lead to the decline of quality.

Drawings

FIG. 1 is an axonometric view of the deviation rectifying system of the steel strip galvanizing line, wherein the view angle is from the oblique left direction to the deviation rectifying system.

FIG. 2 is an axonometric view of the deviation correcting system of the steel strip galvanizing line, wherein the view angle is from the oblique right to the deviation correcting system.

FIG. 3 is an isometric view of the leveling roller, protective sleeve, first lift roller assembly, left first link and Zuo Di link, with the first lift roller assembly, left first link and Zuo Di link detached from the left end of the leveling roller.

FIG. 4 is an isometric view of the deviation rectification roller, the protective sleeve, the second lift roller assembly, the right first connector and the right second connector, with the second lift roller assembly, the right first connector and the right second connector removed from the right end of the deviation rectification roller.

FIG. 5 is an isometric view of the rectification roller, the protective sleeve, the first lift roller assembly, the second lift roller assembly, the left first link and the left second link Zuo Di with the first motorized push rod of the first lift roller assembly lifting the left end of the rectification roller upward.

Detailed Description

The invention will be described in further detail with reference to specific embodiments.

The direction indicated by the arrow a in fig. 1 is taken as the front, and the direction indicated by the arrow B in fig. 1 is taken as the left. The deviation rectifying system of the steel strip galvanizing production line is shown in figure 1, a tension roller 2, a reversing roller 6 and a deviation rectifying roller 35 are sequentially arranged from back to front, a steel strip 1 sequentially passes through the three rollers 2, 6 and 35 from back to front, firstly passes through the upper part of the tension roller 2, then passes through the lower part of the reversing roller 6 and then passes through the upper part of the deviation rectifying roller 35.

Referring to fig. 1, a first support frame 21 is arranged at the left end of the tension roller 2, the first support frame 21 is provided with a first chute 22 in the vertical direction, a first tension spring 23 in a compressed state and a first slider 24 capable of moving up and down along the first chute 22 are arranged in the first chute 22, the left end 201 of the tension roller 2 extends into the first chute 22 to the left and is erected above the first slider 24 and can move up and down relative to the first chute 22, that is, the first slider 24 is clamped between the left end 201 of the tension roller 2 and the upper end of the first tension spring 23, the upper end of the first tension spring 23 upwards supports against the first slider 24, and upwards supports against the left end 201 of the tension roller 2 through the first slider 24, so as to apply an upward tension force to the steel strip 1 through the tension roller 2. Referring to fig. 1 and fig. 2, the first support frame 21, the first tension spring 23 and the first slider 24 together form a first tension assembly, a second tension assembly is arranged at the right end 202 of the tension roller 2, and the second tension assembly is bilaterally symmetrical to the first tension assembly in structure, and the specific structure of the second tension assembly is not described in detail in this embodiment, but only briefly described: the right end 202 of the tension roller 2 extends to the right into the second chute 26 of the second support frame 25 of the second tension assembly and is erected above the second slider 27, the upper end of the second tension spring 28 upwards supports against the second slider 27, the upper end of the second tension spring upwards supports against the right end 202 of the tension roller 2 through the second slider 27, and upward tension is applied to the steel strip 1 through the tension roller 2. The first support frame 21 is located at the left support frame 21, and the second support frame 25 is located at the right support frame. The first runner 22 is located at the left runner, and the second runner 26 is located at the right runner.

Referring to fig. 1 and 3, a first electric push rod 37 is provided at the left end of the rectification roller 35, and the left end of the rectification roller 35 is hinged to the first electric push rod 37 in such a way that: a cylindrical first accommodating groove 351 in the left-right direction is formed in the center of the left end of the deviation rectifying roller 35, the notch of the first accommodating groove 351 faces to the left, a cylindrical first supporting piece 352 in the left-right direction is movably installed in the first accommodating groove 351, the first supporting piece 352 can rotate around the axis of the first supporting piece relative to the groove wall of the first accommodating groove 351 and can also move left and right relative to the groove wall of the first accommodating groove 351, and naturally, the deviation rectifying roller 35 can rotate around the axis of the first supporting piece 352; the left end of the first supporting member 352 extends to the left out of the first accommodating groove 351, a first convex portion 353 is arranged on the outer peripheral side of the left end of the first supporting member 352 at the left end of the rectification roller 35, and the first convex portion 353 blocks the left end of the rectification roller 35; the first hinge 371 is fixedly installed at the upper end of the first electric push rod 37, and the first hinge 371 is hinged to the left end of the first support 352, that is, the left end of the first support 352 is hinged to the upper end of the first electric push rod 37 through the first hinge 371. The first support 352 and the first electric push rod 37 together form a first lifting roller assembly, as shown in fig. 1 and fig. 2, a second lifting roller assembly is arranged at the right end of the tension roller 2, the second lifting roller assembly is symmetrical to the first lifting roller assembly in structure, and the specific structure of the second lifting roller assembly is not described in detail in this embodiment, but only briefly described: referring to fig. 2 and 4, a second receiving groove 354 is formed in a circle center portion of the right end of the rectification roller 35, a notch of the second receiving groove 354 faces to the right, a second supporting member 355 is movably installed in the second receiving groove 354, the right end of the second supporting member 355 extends out of the second receiving groove 354 to the right, a second convex portion 356 for blocking the right end of the rectification roller 35 is arranged on the outer peripheral side of the right end of the second supporting member 355, the right end of the second supporting member 355 is hinged to the upper end of the second electric push rod 38 through a second hinge member 381, and the right end of the rectification roller 35 is hinged to the second electric push rod 38 in this way. The first electric push rod 37 is located at the left, and the second electric push rod 38 is located at the right.

Referring to fig. 3 and 4, a cylindrical copper protective sleeve 39 is sleeved on the whole outer periphery of the rectification roller 35, the protective sleeve 39 is cut into two symmetrical half cylinders 391 and 392 along two generatrices of the outer surface of the cylinder, the two half cylinders 391 and 392 are spliced together to form the cylindrical protective sleeve 39, the left and right end faces of the first half cylinder 391 are provided with a first connecting hole 41 and a second connecting hole 42, the left and right end faces of the second half cylinder 392 are provided with a third connecting hole 43 and a fourth connecting hole 44, and the left and right end faces of the rectification roller 35 are provided with a fifth connecting hole 45 and a sixth connecting hole 46. The deviation correcting system comprises a left stainless steel first connecting piece 51, a right stainless steel first connecting piece 51, a left stainless steel second connecting piece 52 and a right stainless steel second connecting piece 52, wherein each connecting piece is provided with three connecting columns, the three connecting columns of the left stainless steel first connecting piece 51 are respectively inserted into a left first connecting hole 41, a Zuo Di three connecting holes 43 and a left fifth connecting hole 45, the three connecting columns of the right first connecting piece 51 are respectively inserted into a right first connecting hole 41, a right third connecting hole 43 and a right fifth connecting hole 45, the three connecting columns of the Zuo Di two connecting pieces 52 are respectively inserted into a Zuo Di two connecting holes 42, a Zuo Di four connecting holes 44 and a left sixth connecting hole 46, the three connecting columns of the right second connecting piece 52 are respectively inserted into a right second connecting hole 42, a right fourth connecting hole 44 and a right sixth connecting hole 46, after insertion, the three connecting columns are shown in figures 1 and 2, the left and right two first connecting pieces 51 and the left connecting pieces 52 are connected with a half cylinder 391 of a protective sleeve 39 and a second half cylinder 391 in this way.

Referring to fig. 1 and 2, a left and a right optical signal transmitters 31 and 32 and a left and a right optical signal receivers 33 and 34 are disposed between the reversing roller 6 and the correcting roller 35, the left and the right optical signal transmitters 31 and 32 are respectively located above the left and the right sides of the steel strip 1 and respectively transmit optical signals downward, the left and the right optical signal receivers 33 and 34 are respectively located below the left and the right sides of the steel strip 1 and respectively face upward to the left and the right optical signal transmitters 31 and 32 and respectively receive optical signals transmitted by the left and the right optical signal transmitters 31 and 32. The deviation correcting system for the steel strip galvanizing production line comprises a controller (not shown in the figure), wherein the controller is electrically connected with a left optical signal receiver 33, a right optical signal receiver 34 and two electric push rods 37, 38, when a steel strip 1 deviates, for example, the steel strip 1 deviates to the left, the steel strip 1 is blocked between a left optical signal transmitter 31 and a left optical signal receiver 33, so that the left optical signal receiver 33 cannot receive an optical signal, the left optical signal receiver 33 sends a left deviation signal of the steel strip 1 to the controller, after the controller receives the left deviation signal of the steel strip 1, see fig. 5, the first electric push rod 37 is controlled to lift up a first support 352, so that the left end of the deviation correcting roller 35 is lifted, so that the left end of the deviation correcting roller 35 swings to the upper right, in the process, the first support 352 moves to the left relative to a first containing groove 351 (see fig. 3) of the deviation correcting roller 35, and a cylindrical protective sleeve 39 is sleeved on the whole peripheral side wall of the deviation correcting roller 35, so that the deviation correcting roller 35 cannot directly rub against the side wall of the steel strip 1 (see fig. 1) and cannot be abraded, and the protective sleeve 39 does not exert a left deviation correcting force on the side wall of the steel strip 1, i.e., the steel strip 1, so that the left deviation correcting roller 1 does not move to the left side wall of the correcting roller 35, i.e., the left side wall of the correcting roller 1, and the steel strip 1, i.e., the correcting roller 35 moves to pass through the left deviation correcting roller 1. Because the second lifting roller assembly and the first lifting roller assembly are bilaterally symmetrical in structure, the action of the second lifting roller assembly when the steel strip 1 deviates to the right and the action of the first lifting roller assembly when the steel strip 1 deviates to the left are bilaterally symmetrical, and the embodiment is not described in detail, but only briefly described: referring to fig. 2 and 4, the second electric push rod 38 lifts the second support member 355 upward to lift the right end of the rectification roller 35, so that the right end of the rectification roller 35 swings to the left and upward, and the steel strip 1 which has been shifted to the right is rectified, in the process, the second support member 355 moves to the right relative to the groove wall of the second receiving groove 354 of the rectification roller 35.

Referring to fig. 3 and 4, a worker does not need to replace the rectification roller 35, only needs to replace the protection sleeve 39 after the protection sleeve is damaged, only needs to pull out two first connecting pieces 51 and two second connecting pieces 52 to break off two half cylinders 391 and 392 of the old protection sleeve 39, detaches the old protection sleeve 39 from the rectification roller 35, installs the new protection sleeve 39 on the rectification roller 35, and then connects the two half cylinders 391 and 392 of the new protection sleeve 39 together by using the two first connecting pieces 51 and the two second connecting pieces 52 again, so that the protection sleeve 39 is replaced, the operation is simple, and the consumed time is short. Referring to fig. 1, since it takes a short time to replace the protective cover 39, even if the steel strip 1 is deviated in this time, the deviation is generated only in a short time, and the deviation correcting roller 35 can correct the steel strip 1 after the protective cover 39 is replaced, which is not easy to cause quality degradation.

In other embodiments, see fig. 3, the protective sleeve 39 may instead be made of other materials, such as rubber or aluminum.

The above description is only the embodiments of the present invention, and the scope of protection is not limited thereto. The insubstantial changes or substitutions will now be made by those skilled in the art based on the teachings of the present invention, which fall within the scope of the claims.

Claims (7)

1. Steel band galvanizing line rectifying system, on the left of the steel band, right side both sides top is equipped with a left side respectively, two optical signal transmitter that send light signal down on the right side, on the left of the steel band, right side both sides below is equipped with a left side respectively, two optical signal receiver on the right side, a left side is aimed at respectively to two optical signal receiver on the right side, two optical signal transmitter on the right side, receive the light signal that two optical signal transmitter sent respectively, it supplies the steel band from the top process to be equipped with the roller of rectifying in two optical signal transmitter and two optical signal receiver the place ahead, on the roller of rectifying a left side, right side both ends are connected with a left side respectively, two electric putter on the right side, a left side, two electric putter on the right side are respectively through lifting up the left side of the roller of rectifying, the steel band that has squinted is corrected at right side both ends, this rectifying system includes the controller, two optical signal receiver and two electric putter are connected to the controller electricity, its characterized in that: the cylindrical protective sleeve is sleeved on the whole peripheral side of the deviation rectifying roller of the deviation rectifying system, the protective sleeve is cut into two symmetrical half cylinders along two buses on the outer surface of the cylinder, the two half cylinders are spliced together to form the cylindrical protective sleeve, the end face of the first half cylinder is provided with a first connecting hole and a second connecting hole, the same end face of the second half cylinder is provided with a third connecting hole and a fourth connecting hole, the same end face of the deviation rectifying roller is provided with a fifth connecting hole and a sixth connecting hole, the deviation rectifying system is provided with a first connecting piece and a second connecting piece, each connecting piece is provided with three connecting columns, the three connecting columns of the first connecting piece are respectively inserted into the first connecting hole, the third connecting hole and the fifth connecting hole, and the three connecting columns of the second connecting piece are respectively inserted into the second connecting holes, the fourth connecting holes and the sixth connecting holes, so that the two half cylinders of the protective sleeve are connected together.

2. The deviation rectifying system for steel strip galvanizing line according to claim 1, characterized in that: the first connecting holes are respectively arranged on the left end face and the right end face of the first half cylinder of the protective sleeve, the third connecting holes are respectively arranged on the left end face and the right end face of the second half cylinder of the protective sleeve, the fifth connecting holes are respectively arranged on the left end face and the right end face of the rectification roller, the first connecting pieces are respectively arranged on the left end face and the right end face, the three connecting columns of the left first connecting piece are respectively inserted into the left first connecting hole, the left Zuo Di three connecting holes and the left fifth connecting hole, and the three connecting columns of the right first connecting piece are respectively inserted into the right first connecting hole, the right third connecting hole and the right fifth connecting hole.

3. The deviation rectifying system for steel strip galvanizing line according to claim 1, characterized in that: the second connecting holes are respectively arranged on the left end face and the right end face of the first half cylinder of the protective sleeve, the fourth connecting holes are respectively arranged on the left end face and the right end face of the second half cylinder of the protective sleeve, the sixth connecting holes are respectively arranged on the left end face and the right end face of the rectification roller, the second connecting piece is respectively arranged on the left end face and the right end face, the three connecting posts of the house Zuo Di second connecting piece are respectively inserted into the house Zuo Di second connecting hole, the house Zuo Di fourth connecting hole and the house left sixth connecting hole, and the three connecting posts of the house right second connecting piece are respectively inserted into the house right second connecting hole, the house right fourth connecting hole and the house right sixth connecting hole.

4. The deviation rectifying system for steel strip galvanizing line according to claim 1, characterized in that: the center of a circle position of the left end of the rectifying roller is provided with a cylindrical first accommodating groove in the left-right direction, the notch of the first accommodating groove faces to the left, a cylindrical first supporting piece in the left-right direction is movably arranged in the first accommodating groove, the first supporting piece can rotate around the axis of the first supporting piece relative to the groove wall of the first accommodating groove and can move left and right relative to the groove wall of the first accommodating groove, the left end of the first supporting piece extends out of the first accommodating groove towards the left, the first supporting piece is hinged to the upper end of the left electric push rod, the outer peripheral side of the left end of the first supporting piece is provided with a first convex part for blocking the left end of the rectifying roller, the left end of the rectifying roller is connected with the left electric push rod in such a way, the left electric push rod lifts the first supporting piece upwards so as to lift the left end of the rectifying roller, and the groove wall of the first supporting piece moves left relative to the first accommodating groove.

5. The deviation rectifying system for steel strip galvanizing line according to claim 1, characterized in that: the circle center part of the right end of the deviation rectifying roller is provided with a cylindrical second accommodating groove in the left-right direction, the notch of the second accommodating groove faces the right, a cylindrical second supporting piece in the left-right direction is movably installed in the second accommodating groove, the second supporting piece can rotate around the axis of the second supporting groove relative to the groove wall of the second accommodating groove and can move left and right relative to the groove wall of the second accommodating groove, the right end of the second supporting piece extends out of the second accommodating groove to the right, the upper end of the right electric push rod is hinged to the right, a second convex part for blocking the right end of the deviation rectifying roller is arranged on the outer peripheral side of the right end of the second supporting piece, the right end of the deviation rectifying roller is connected with the right electric push rod in the mode, and the right electric push rod lifts the second supporting piece upwards, so that the right end of the deviation rectifying roller moves right relative to the groove wall of the second supporting piece.

6. The deviation rectifying system for steel strip galvanizing line according to claim 1, characterized in that: a tension roller is arranged behind the deviation rectifying roller for the steel belt to pass through from the upper part, a reversing roller is arranged between the tension roller and the deviation rectifying roller for the steel belt to pass through from the lower part, a left support frame and a right support frame are respectively arranged at the left end and the right end of the tension roller, a left sliding chute and a right sliding chute in the vertical direction are respectively arranged on the left support frame and the right support frame, the left end and the right end of the tension roller respectively extend into the left sliding chute and the right sliding chute, can be respectively relative left and right twice spout up-and-down motion, be equipped with the first tension spring that is in compression state in the spout of living on the left side, the first tension spring upper end up withstands the tension roller left end, comes to apply up tension to the steel band through the tension roller, is equipped with the second tension spring that is in compression state in the spout of living on the right side, and the second tension spring upper end up withstands the tension roller right-hand member, comes to apply up tension to the steel band through the tension roller.

7. The deviation rectifying system for steel strip galvanizing line according to claim 6, characterized in that: a first sliding block capable of sliding up and down along the left sliding groove is clamped between the upper end of the first tension spring and the left end of the tension roller, the first tension roller is upwards propped against the left end of the tension roller through the first sliding block, a second sliding block capable of sliding up and down along the right sliding groove is clamped between the upper end of the second tension spring and the right end of the tension roller, and the second tension roller is upwards propped against the right end of the tension roller through the second sliding block.

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