CN213140814U

CN213140814U - Soft metal strip rolling tension system

Info

Publication number: CN213140814U
Application number: CN202020444126.9U
Authority: CN
Inventors: 王志彬; 李振波
Original assignee: Baoji Accurate Machine Co ltd
Current assignee: Baoji Accurate Machine Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2021-05-07
Anticipated expiration: 2030-03-31

Abstract

A stand column and a ball screw mechanism are fixed on a base of a soft metal strip rolling tension system, a guide rail is arranged on the stand column, a sliding plate is connected onto the guide rail, the left side of the sliding plate is connected with a transition beam, the right side of the sliding plate is connected with a support, and the transition beam is connected with the ball screw mechanism; the bracket is provided with an air bag type pressing plate mechanism and a leveling machine, and a pressing roller mechanism, a reversing roller and a material distributing roller mechanism are arranged between supporting beams connected with the outer end of the transition beam; the supporting beam is provided with a distance sensor through a sensor bracket, and the metal strip passes through an air bag type pressing plate mechanism, a leveling machine, a press roller mechanism, a reversing roller and a material distributing roller mechanism in sequence and then is wound on a winding drum; the distance sensor controls the transmission device according to the detected displacement signal of the continuously increased rolling diameter, the transmission device drives the ball screw mechanism to drive the sliding plate to gradually rise along with the increase of the rolling diameter, so that the wrap angle alpha between the metal strip passing through the reversing roller and the wound material roll is always kept consistent, the rolling tension is stable, and the rolling precision is high.

Description

Soft metal strip rolling tension system

Technical Field

The utility model belongs to the technical field of metal strip shearing equipment, concretely relates to soft attitude metal strip rolling tension system.

Background

The soft metal strip is a key material of nonferrous metals applied to the electronic industry, the solar photovoltaic industry and the new energy automobile industry, and along with the continuous upgrade of the industries, the requirements on the quality and the supply state of the soft metal strip are higher and higher. The soft metal strip shearing production line mainly comprises an unreeling machine, a tractor, a slitting machine, a tension system and a reeling machine, is used for longitudinally slitting the soft metal strips and rewinding the slit finished strip materials into coils according to certain tension so as to obtain high-quality soft metal strip finished coils with different width specifications and meet the high-quality requirements of downstream industries on the soft metal strips.

As known to those skilled in the art, before the metal strip is wound, a proper tension must be applied to the finished strip, and only the proper tension can ensure the winding quality, while the soft metal strip provides higher requirements for a winding tension system, and the existing pressing plate type tension system cannot meet the tension control requirement for winding the soft metal strip.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem: the soft metal strip winding tension system gradually rises along with the continuous increase of the winding diameter, so that the winding wrap angle of the soft metal strip is always kept consistent, the winding tension is stable, and the winding precision is improved.

The technical solution of the utility model is as follows: a soft metal strip rolling tension system comprises a base, wherein an upright post and a ball screw mechanism are fixed on the base, a guide rail is vertically arranged on the right end face of the upright post, and the ball screw mechanism is driven by a transmission device arranged at the top of the upright post; the guide rail is connected with a sliding plate, the left side of the sliding plate is fixedly connected with a transition beam, the right side of the sliding plate is fixedly connected with a support, and the transition beam is connected with a ball screw mechanism to drive the sliding plate to lift along the guide rail; the bracket is provided with an air bag type pressing plate mechanism and a leveling machine, and the leveling machine is positioned between the sliding plate and the air bag type pressing plate mechanism; the outer end of the transition beam is fixedly connected with a pair of supporting beams, a compression roller mechanism, a reversing roller and a distributing roller mechanism are arranged between the supporting beams, and the reversing roller is arranged between the compression roller mechanism and the distributing roller mechanism; a sensor bracket is fixed on the support beam, a distance sensor is arranged on the sensor bracket, and the signal output end of the distance sensor is electrically connected with the control end of the transmission device; the metal strip passes through the air bag type pressing plate mechanism, the leveling machine, the press roller mechanism, the reversing roller and the material distributing roller mechanism in sequence and then is wound on the winding drum; the distance sensor controls the transmission device to work according to the detected displacement signal of the continuously increased rolling diameter, and then the sliding plate is driven by the ball screw mechanism to gradually rise along with the increase of the rolling diameter, so that the wrap angle alpha between the metal strip passing through the reversing roller and the wound material roll is always kept consistent.

The stand column and the ball screw mechanisms are symmetrically arranged, a pair of guide rails are symmetrically arranged on the right end faces of the stand columns, the sliding plates are symmetrically connected to the guide rails, the transmission device synchronously drives the ball screw mechanisms to rotate, and the transition beam is symmetrically connected with the ball screw mechanisms.

The air bag type pressing plate mechanism comprises a lower seat, an upper seat, a first distributor, a second distributor and a third distributor; the lower seat is fixed on the bracket, and the upper end surface of the lower seat is provided with an air bag; one side of the upper seat is hinged with one side of the lower seat through a pin shaft, and the other side of the upper seat is locked through a first locking device; a square box is arranged in an inner cavity of the upper seat, a first oil cylinder is arranged at the top of the upper seat, the square box is connected with a piston end of the first oil cylinder and is positioned right above the air bag, the first distributor and the third distributor are respectively positioned at the left side and the right side of the air bag, and the second distributor is positioned between the air bag and the first distributor; the metal strip passes through the first distributor and the second distributor in sequence, then passes through the space between the opposite surfaces of the square box and the air bag, then enters the seven-roller leveling machine through the third distributor, and is driven by the first oil cylinder to move down to extrude the air bag to provide tension for the metal strip.

The leveling machine is a seven-roller leveling machine and comprises an upper rack, a lower rack, an upper straightening roller, a lower roller seat, an upper roller seat and a first lifting mechanism; the lower rack is fixed on the bracket, the first lifting mechanism is arranged in the lower rack and fixed on the bracket, and the lower roller seat is fixed above the first lifting mechanism; the upper frame is hinged with one side of the lower frame, and the other side of the upper frame is locked by a second locking device; the upper roll seats are symmetrically fixed in the upper rack, three upper straightening rolls are arranged below the upper roll seat side by side, and four lower straightening rolls are arranged above the lower roll seat side by side; the metal strip passes through the space between the upper straightening roll and the lower straightening roll, the first lifting mechanism is used for adjusting the upward displacement of the lower straightening roll so as to adjust the superposed quantity of the upper straightening roll and the lower straightening roll, level the metal strip and provide tension for the metal strip.

The compression roller mechanism comprises a left wall plate and a right wall plate which are fixed on a pair of supporting beams, a lower compression roller is arranged between the left wall plate and the right wall plate, a first left sliding block and a first right sliding block are symmetrically arranged on the left wall plate and the right wall plate, an upper compression roller is arranged between the first left sliding block and the first right sliding block, and the upper compression roller is positioned right above the lower compression roller; the upper ends of the left wall plate and the right wall plate are respectively provided with a second lifting mechanism and a third lifting mechanism, and the second lifting mechanism and the third lifting mechanism are respectively connected with the first left sliding block and the first right sliding block; the metal strip passes between upper press roll and the lower pressure roller, drives the upper press roll through second elevating system and third elevating system in step and moves down with the metal strip centre gripping, levels the metal strip once more and provides tension for the metal strip, drives upper press roll and lower pressure roller along with the motion of metal strip simultaneously and rotates.

The distributing roller mechanism comprises a left guide rail, a right guide rail, a fourth lifting mechanism and a fifth lifting mechanism which are fixed on a pair of supporting beams, and the fourth lifting mechanism and the fifth lifting mechanism are respectively positioned above the left guide rail and the right guide rail; a second left sliding block and a second right sliding block are symmetrically arranged on the left guide rail and the right guide rail, the fourth lifting mechanism and the fifth lifting mechanism are respectively connected with the second left sliding block and the second right sliding block, a material distributing roller shaft is arranged between the second left sliding block and the second right sliding block, and the material distributing roller shaft is synchronously driven to lift through the fourth lifting mechanism and the fifth lifting mechanism; the material distributing roll shaft is provided with a material distributing roll, and the material distributing roll is provided with a material distributing spacing ring.

The distance sensor is connected to the sensor support through the angle adjusting support, and the posture of the distance sensor is adjusted through the angle adjusting support.

The transmission device comprises an alternating current variable frequency motor, a first speed reducer, a second speed reducer and a third speed reducer; the main shaft of the alternating-current variable-frequency motor is connected with the input shaft of the first speed reducer, two output shafts of the first speed reducer are respectively connected with the input shafts of the second speed reducer and the third speed reducer, the output shafts of the second speed reducer and the third speed reducer are respectively connected with the pair of ball screw mechanisms, and then the alternating-current variable-frequency motor drives the pair of ball screw mechanisms to synchronously rotate.

And when the first locking device is unlocked, the upper seat is upwards opened around the pin shaft by retracting the second oil cylinder.

And after the second locking device is unlocked, the upper frame is opened upwards around the hinged shaft through the pair of air springs.

The utility model has the advantages and effects:

1. the utility model discloses rise gradually along with the constantly increase of rolling diameter, make the coiling cornerite of soft attitude metal strip remain unanimous throughout to guarantee that rolling tension is stable, improve the rolling precision.

2. The utility model discloses a gasbag formula clamp plate mechanism exerts tension for soft attitude metal strip to through the size of adjusting gasbag atmospheric pressure size adjustment tension, satisfy soft attitude metal strip to tensile sensitive requirement, guarantee that the tension size of applying is suitable and stable, satisfy the strict requirement of soft attitude metal strip rolling to tension.

3. The utility model discloses a seven roller levelers can effectively restore soft attitude metal strip limit portion flaw (like burr, wave limit etc.) and for the strip provides tension after cutting, make rolling tension remain stable, further improve strip quality and rolling precision.

4. The utility model discloses a compression roller mechanism can restore metal strip limit portion flaw once more (like burr, wave limit etc.) and for the strip provides tension, makes rolling tension remain stable, further improves strip quality and rolling precision.

Drawings

Figure 1 is a front view of the structure of the utility model,

FIG. 2 is a schematic view of the layout of the column and ball screw mechanism of the present invention,

figure 3 is a front view of the seven-roll leveler of the present invention,

figure 4 is a cross-sectional view a-a of figure 3,

figure 5 is a front view of the structure of the air bag type pressing plate mechanism of the utility model,

figure 6 is a cross-sectional view B-B of figure 5,

figure 7 is a front view of the structure of the press roller mechanism of the utility model,

figure 8 is a cross-sectional view C-C of figure 7,

FIG. 9 is a front view of the structure of the material distributing roller mechanism of the present invention,

figure 10 is a left side view of figure 9,

figure 11 is a schematic structural view of the reversing roller of the invention,

fig. 12 is a schematic view of the installation structure of the distance sensor of the present invention.

The specific implementation mode is as follows:

the present invention is described in detail below with reference to the accompanying figures 1-12 and the detailed description.

A soft metal strip winding tension system comprises a base 1, wherein an upright post 2 and a ball screw mechanism 4 are fixed on the base 1, a guide rail 3 is vertically arranged on the right end face of the upright post 2, and the ball screw mechanism 4 is driven by a transmission device 5 arranged at the top of the upright post 2; the guide rail 3 is connected with a sliding plate 6, the left side of the sliding plate 6 is fixedly connected with a transition beam 7, the right side of the sliding plate 6 is fixedly connected with a support 9, and the transition beam 7 is connected with a ball screw mechanism 4 to drive the sliding plate 6 to lift along the guide rail 3; the bracket 9 is provided with an air bag type pressing plate mechanism 8 and a seven-roller leveling machine 10, and the seven-roller leveling machine 10 is positioned between the sliding plate 6 and the air bag type pressing plate mechanism 8; the outer end of the transition beam 7 is fixedly connected with a pair of supporting beams 11, a press roll mechanism 12, a reversing roll 13 and a material distributing roll mechanism 14 are arranged between the supporting beams 11, and the reversing roll 13 is arranged between the press roll mechanism 12 and the material distributing roll mechanism 14; a sensor support 15 is fixed on the support beam 11, a distance sensor 18 is arranged on the sensor support 15, and a signal output end of the distance sensor 18 is electrically connected with a control end of the transmission device 5; the metal strip 16 sequentially passes through the air bag type pressing plate mechanism 8, the seven-roller leveling machine 10, the pressing roller mechanism 12, the reversing roller 13 and the material distributing roller mechanism 14 and then is wound on the winding drum 17; the distance sensor 18 controls the transmission device 5 to work according to the detected displacement signal of the continuously increased rolling diameter, and then the sliding plate 6 is driven by the ball screw mechanism 4 to gradually rise along with the increase of the rolling diameter, so that the wrap angle alpha between the metal strip 16 passing through the reversing roller 13 and the wound material roll is always kept consistent.

Further, the distance sensor 18 is connected to the sensor support 15 through an angle adjusting support 19, and the posture of the distance sensor 18 is adjusted through the angle adjusting support 19, specifically, the posture can be adjusted through a bolt 20, so that a detection signal sent by the distance sensor 18 is perpendicular to the metal strip 16 as far as possible. The distance sensor 18 can be an ultrasonic distance measuring sensor, an infrared distance measuring sensor or a laser distance measuring sensor.

Preferably, the upright posts 2 and the ball screw mechanisms 4 are symmetrically arranged, a pair of guide rails 3 are symmetrically arranged on the right end faces of the pair of upright posts 2, the sliding plates 6 are symmetrically connected on the pair of guide rails 3, the transmission device 5 synchronously drives the pair of ball screw mechanisms 4 to rotate, and the transition beams 7 are symmetrically connected with the pair of ball screw mechanisms 4.

In one embodiment, the wrap angle alpha is 13-19 degrees when the non-ferrous metal strip (copper) is rolled up;

in one embodiment, when the non-ferrous metal strip (aluminum) is coiled, the wrap angle alpha is 14-21 degrees;

in one embodiment, the air bag type pressing plate mechanism 8 comprises a lower seat 8-1, an upper seat 8-2, a first distributor 8-3, a second distributor 8-4 and a third distributor 8-5; the lower seat 8-1 is fixed on the bracket 9, and the upper end surface of the lower seat 8-1 is provided with an air bag 8-6; the upper seat 8-2 is hinged with one side of the lower seat 8-1 through a pin shaft 8-11, and the other side of the upper seat is locked through a first locking device 8-7; a square box 8-8 is arranged in an inner cavity of the upper seat 8-2, a first oil cylinder 8-9 is arranged at the top of the upper seat 8-2, the square box 8-8 is connected with a piston end of the first oil cylinder 8-9 and is positioned right above the air bag 8-6, the first distributor 8-3 and the third distributor 8-5 are respectively positioned at the left side and the right side of the air bag 8-6, and the second distributor 8-4 is positioned between the air bag 8-6 and the first distributor 8-3; the metal strip 16 sequentially passes through a first distributor 8-3 and a second distributor 8-4, passes through the space between the opposite surfaces of the square box 8-8 and the air bag 8-6, enters a seven-roller leveling machine 10 through a third distributor 8-5, and is driven by a first oil cylinder 8-9 to move downwards to extrude the air bag 8-6 to provide tension for the metal strip 16. Furthermore, a second oil cylinder 8-10 is arranged on one hinged side of the upper seat 8-2 and the lower seat 8-1, two ends of the second oil cylinder 8-10 are hinged to the top of the upper seat 8-2 and the bottom of the lower seat 8-1 respectively, and after the first locking device 8-7 is unlocked, the upper seat 8-2 is opened upwards around a pin shaft 8-11 by retracting the second oil cylinder 8-10, so that the metal strip 16 can conveniently penetrate between the opposite surfaces of the square box 8-8 and the air bag 8-6. The first material distributor 8-3, the second material distributor 8-4 and the third material distributor 8-5 are all provided with material distributing rollers, the separation of the metal strips 16 is realized through the material distributing rollers, and the specific structure of the material distributing rollers is basically consistent with that of the material distributing rollers 14-10 which are described later.

In one embodiment, the seven-roller leveling machine 10 comprises an upper frame 10-1, a lower frame 10-2, an upper straightening roller 10-3, a lower straightening roller 10-4, a lower roller seat 10-5, an upper roller seat 10-6 and a first lifting mechanism 10-7; the lower rack 10-2 is fixed on the support 9, the first lifting mechanism 10-7 is arranged in the lower rack 10-2 and fixed on the support 9, and the lower roller seat 10-5 is fixed above the first lifting mechanism 10-7; the upper frame 10-1 is hinged with one side of the lower frame 10-2, and the other side of the upper frame is locked by a second locking device 10-8; the upper roller seat 10-6 is symmetrically fixed in the upper rack 10-1, three upper straightening rollers 10-3 are arranged below the upper roller seat 10-6 side by side, and four lower straightening rollers 10-4 are arranged above the lower roller seat 10-5 side by side; the metal strip 16 passes through the space between the upper straightening roll 10-3 and the lower straightening roll 10-4, and the first lifting mechanism 10-7 adjusts the upward displacement of the lower straightening roll 10-4 so as to adjust the overlapping amount of the upper straightening roll 10-3 and the lower straightening roll 10-4, thereby leveling the metal strip 16 and providing tension for the metal strip 16. Further, a pair of air springs 10-9 are symmetrically arranged on the front side and the rear side of the upper rack 10-1 and the lower rack 10-2, two ends of each air spring 10-9 are respectively hinged to the upper rack 10-1 and the lower rack 10-2, and after the second locking device 10-8 is unlocked, the upper rack 10-1 is opened upwards around a hinge shaft 10-11 through the pair of air springs 10-9, so that a metal strip 16 can conveniently pass through, and an upper straightening roller 10-3 and a lower straightening roller 10-4 can be cleaned and maintained; the first lifting mechanism 10-7 is driven by a first hand wheel 10-10 connected thereto.

In one embodiment, the pressing roller mechanism 12 comprises a left wall plate 12-1 and a right wall plate 12-2 fixed on a pair of support beams 11, a lower pressing roller 12-3 is arranged between the left wall plate 12-1 and the right wall plate 12-2, a first left slide block 12-4 and a first right slide block 12-5 are symmetrically arranged on the left wall plate 12-1 and the right wall plate 12-2, an upper pressing roller 12-6 is arranged between the first left slide block 12-4 and the first right slide block 12-5, and the upper pressing roller 12-6 is positioned right above the lower pressing roller 12-3; the upper ends of the left wall plate 12-1 and the right wall plate 12-2 are respectively provided with a second lifting mechanism 12-7 and a third lifting mechanism 12-8, and the second lifting mechanism 12-7 and the third lifting mechanism 12-8 are respectively connected with a first left slide block 12-4 and a first right slide block 12-5; the metal strip 16 passes through the space between the upper press roll 12-6 and the lower press roll 12-3, the upper press roll 12-6 is synchronously driven to move downwards by the second lifting mechanism 12-7 and the third lifting mechanism 12-8 to clamp the metal strip 16, the metal strip 16 is leveled and tension is provided for the metal strip 16, and the upper press roll 12-6 and the lower press roll 12-3 are driven to rotate along with the movement of the metal strip 16. Further, the second lifting mechanism 12-7 and the third lifting mechanism 12-8 are connected through a synchronizing shaft 12-9, the second lifting mechanism 12-7 and the third lifting mechanism 12-8 are respectively driven through a second hand wheel 12-10 and a lifting motor 12-11, the lifting motor 12-11 is adopted for driving during quick lifting, and the second hand wheel 12-10 is adopted for driving during fine adjustment.

In one embodiment, the material distributing roller mechanism 14 comprises a left guide rail 14-1, a right guide rail 14-2, a fourth lifting mechanism 14-5 and a fifth lifting mechanism 14-6 fixed on a pair of support beams 11, and the fourth lifting mechanism 14-5 and the fifth lifting mechanism 14-6 are respectively positioned above the left guide rail 14-1 and the right guide rail 14-2; a second left slide block 14-3 and a second right slide block 14-4 are symmetrically arranged on the left guide rail 14-1 and the right guide rail 14-2, the fourth lifting mechanism 14-5 and the fifth lifting mechanism 14-6 are respectively connected with the second left slide block 14-3 and the second right slide block 14-4, a material distributing roller shaft 14-11 is arranged between the second left slide block 14-3 and the second right slide block 14-4, and the material distributing roller shaft 14-11 is synchronously driven to lift through the fourth lifting mechanism 14-5 and the fifth lifting mechanism 14-6. The material distributing roll shaft 14-11 is provided with a material distributing roll 14-10, and the material distributing roll 14-10 is provided with a material distributing spacing ring 14-12. Furthermore, the left slide block 14-3 is hinged with one end of the material separating roller shaft 14-11 through a hinge 14-13, the right slide block 14-4 is detachably connected with the other end of the material separating roller shaft 14-11 through a locking block 14-14, and when the material separating ring 14-12 is replaced or adjusted, the material separating roller shaft 14-11 is rotated out around the hinge 14-13 by manually loosening the locking block 14-14. Furthermore, a fourth lifting mechanism 14-5 and a fifth lifting mechanism 14-6 are connected through a connecting shaft 14-7 to realize synchronous lifting, and the fourth lifting mechanism 14-5 and the fifth lifting mechanism 14-6 are respectively driven by a third hand wheel 14-8 or a third hand wheel 14-9 connected with the fourth lifting mechanism.

In one embodiment, the transmission device 5 comprises an alternating current variable frequency motor 5-1, a first speed reducer 5-2, a second speed reducer 5-3 and a third speed reducer 5-4; the main shaft of the alternating current variable frequency motor 5-1 is connected with the input shaft of a first speed reducer 5-2, two output shafts of the first speed reducer 5-2 are respectively connected with the input shafts of a second speed reducer 5-3 and a third speed reducer 5-4, the output shafts of the second speed reducer 5-3 and the third speed reducer 5-4 are respectively connected with a pair of ball screw mechanisms 4, and then the alternating current variable frequency motor 5-1 drives the pair of ball screw mechanisms 4 to synchronously rotate.

In one embodiment, the reversing roller 13 is mounted between a pair of support beams 11 by a pair of bearings.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that all equivalent changes made by the contents of the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A soft metal strip rolling tension system is provided with a base (1) and is characterized in that: an upright post (2) and a ball screw mechanism (4) are fixed on the base (1), a guide rail (3) is vertically arranged on the right end face of the upright post (2), and the ball screw mechanism (4) is driven by a transmission device (5) arranged at the top of the upright post (2); the guide rail (3) is connected with a sliding plate (6), the left side of the sliding plate (6) is fixedly connected with a transition beam (7), the right side of the sliding plate (6) is fixedly connected with a support (9), and the transition beam (7) is connected with a ball screw mechanism (4) to drive the sliding plate (6) to lift along the guide rail (3); the air bag type pressing plate mechanism (8) and the leveling machine (10) are arranged on the support (9), and the leveling machine (10) is positioned between the sliding plate (6) and the air bag type pressing plate mechanism (8); the outer end of the transition beam (7) is fixedly connected with a pair of supporting beams (11), a compression roller mechanism (12), a reversing roller (13) and a distributing roller mechanism (14) are arranged between the supporting beams (11), and the reversing roller (13) is arranged between the compression roller mechanism (12) and the distributing roller mechanism (14); a sensor support (15) is fixed on the support beam (11), a distance sensor (18) is arranged on the sensor support (15), and a signal output end of the distance sensor (18) is electrically connected with a control end of the transmission device (5); the metal strip (16) sequentially passes through an air bag type pressing plate mechanism (8), a leveling machine (10), a pressing roller mechanism (12), a reversing roller (13) and a material distributing roller mechanism (14) and then is wound on a winding drum (17); the distance sensor (18) controls the transmission device (5) to work according to the detected displacement signal of the continuously increased rolling diameter, and then the sliding plate (6) is driven by the ball screw mechanism (4) to gradually rise along with the increase of the rolling diameter, so that the wrap angle alpha between the metal strip (16) passing through the reversing roller (13) and the wound material roll is always kept consistent.

2. The soft metal strip take-up tension system of claim 1, wherein: stand (2), ball screw mechanism (4) are a pair of and the symmetry sets up, symmetrical arrangement has a pair of guide rail (3) on the right-hand member face of a pair of stand (2), slide (6) symmetric connection is on a pair of guide rail (3), transmission (5) synchronous drive is a pair of ball screw mechanism (4) rotatory, cross cab apron (7) and a pair of ball screw mechanism (4) symmetric connection.

3. A soft metal strip take-up tension system as claimed in claim 1 or claim 2, wherein: the air bag type pressure plate mechanism (8) comprises a lower seat (8-1), an upper seat (8-2), a first distributor (8-3), a second distributor (8-4) and a third distributor (8-5); the lower seat (8-1) is fixed on the bracket (9), and the upper end surface of the lower seat (8-1) is provided with an air bag (8-6); one side of the upper seat (8-2) is hinged with one side of the lower seat (8-1) through a pin shaft (8-11), and the other side of the upper seat is locked through a first locking device (8-7); a square box (8-8) is arranged in an inner cavity of the upper seat (8-2), a first oil cylinder (8-9) is arranged at the top of the upper seat (8-2), the square box (8-8) is connected with a piston end of the first oil cylinder (8-9) and is positioned right above the air bag (8-6), the first distributor (8-3) and the third distributor (8-5) are respectively positioned at the left side and the right side of the air bag (8-6), and the second distributor (8-4) is positioned between the air bag (8-6) and the first distributor (8-3); the metal strip (16) sequentially passes through the first distributor (8-3) and the second distributor (8-4), then passes through the space between the opposite surfaces of the square box (8-8) and the air bag (8-6), then enters the seven-roller leveling machine (10) through the third distributor (8-5), and drives the square box (8-8) to move downwards through the first oil cylinder (8-9) to extrude the air bag (8-6) to provide tension for the metal strip (16).

4. A soft metal strip take-up tension system as claimed in claim 1 or claim 2, wherein: the leveling machine (10) is a seven-roller leveling machine and comprises an upper rack (10-1), a lower rack (10-2), an upper straightening roller (10-3), a lower straightening roller (10-4), a lower roller seat (10-5), an upper roller seat (10-6) and a first lifting mechanism (10-7); the lower rack (10-2) is fixed on the support (9), the first lifting mechanism (10-7) is arranged in the lower rack (10-2) and fixed on the support (9), and the lower roller seat (10-5) is fixed above the first lifting mechanism (10-7); the upper frame (10-1) is hinged with one side of the lower frame (10-2), and the other side of the upper frame is locked by a second locking device (10-8); the upper roll seats (10-6) are symmetrically fixed in the upper rack (10-1), three upper straightening rolls (10-3) are arranged below the upper roll seats (10-6) side by side, and four lower straightening rolls (10-4) are arranged above the lower roll seats (10-5) side by side; the metal strip (16) passes through the space between the upper straightening roll (10-3) and the lower straightening roll (10-4), the upward displacement of the lower straightening roll (10-4) is adjusted through the first lifting mechanism (10-7), so that the overlapping amount of the upper straightening roll (10-3) and the lower straightening roll (10-4) is adjusted, the metal strip (16) is leveled, and tension is provided for the metal strip (16).

5. A soft metal strip take-up tension system as claimed in claim 1 or claim 2, wherein: the compression roller mechanism (12) comprises a left wall plate (12-1) and a right wall plate (12-2) which are fixed on a pair of supporting beams (11), a lower compression roller (12-3) is arranged between the left wall plate (12-1) and the right wall plate (12-2), a first left sliding block (12-4) and a first right sliding block (12-5) are symmetrically arranged on the left wall plate (12-1) and the right wall plate (12-2), an upper compression roller (12-6) is arranged between the first left sliding block (12-4) and the first right sliding block (12-5), and the upper compression roller (12-6) is positioned right above the lower compression roller (12-3); the upper ends of the left wall plate (12-1) and the right wall plate (12-2) are respectively provided with a second lifting mechanism (12-7) and a third lifting mechanism (12-8), and the second lifting mechanism (12-7) and the third lifting mechanism (12-8) are respectively connected with a first left sliding block (12-4) and a first right sliding block (12-5); the metal strip (16) passes through the space between the upper press roll (12-6) and the lower press roll (12-3), the upper press roll (12-6) is synchronously driven to move downwards through the second lifting mechanism (12-7) and the third lifting mechanism (12-8) to clamp the metal strip (16), the metal strip (16) is leveled again and tension is provided for the metal strip (16), and meanwhile the upper press roll (12-6) and the lower press roll (12-3) are driven to rotate along with the movement of the metal strip (16).

6. A soft metal strip take-up tension system as claimed in claim 1 or claim 2, wherein: the material distributing roller mechanism (14) comprises a left guide rail (14-1), a right guide rail (14-2), a fourth lifting mechanism (14-5) and a fifth lifting mechanism (14-6) which are fixed on a pair of supporting beams (11), and the fourth lifting mechanism (14-5) and the fifth lifting mechanism (14-6) are respectively positioned above the left guide rail (14-1) and the right guide rail (14-2); a second left sliding block (14-3) and a second right sliding block (14-4) are symmetrically arranged on the left guide rail (14-1) and the right guide rail (14-2), the fourth lifting mechanism (14-5) and the fifth lifting mechanism (14-6) are respectively connected with the second left sliding block (14-3) and the second right sliding block (14-4), a material distributing roller shaft (14-11) is arranged between the second left sliding block (14-3) and the second right sliding block (14-4), and the material distributing roller shaft (14-11) is synchronously driven to lift through the fourth lifting mechanism (14-5) and the fifth lifting mechanism (14-6); the material distributing roll shaft (14-11) is provided with a material distributing roll (14-10), and the material distributing roll (14-10) is provided with a material distributing spacing ring (14-12).

7. A soft metal strip take-up tension system as claimed in claim 1 or claim 2, wherein: the distance sensor (18) is connected to the sensor support (15) through an angle adjusting support (19), and the posture of the distance sensor (18) is adjusted through the angle adjusting support (19).

8. A soft metal strip take-up tension system as claimed in claim 1 or claim 2, wherein: the transmission device (5) comprises an alternating current variable frequency motor (5-1), a first speed reducer (5-2), a second speed reducer (5-3) and a third speed reducer (5-4); the main shaft of the alternating current variable frequency motor (5-1) is connected with the input shaft of a first speed reducer (5-2), two output shafts of the first speed reducer (5-2) are respectively connected with the input shafts of a second speed reducer (5-3) and a third speed reducer (5-4), the output shafts of the second speed reducer (5-3) and the third speed reducer (5-4) are respectively connected with a pair of ball screw mechanisms (4), and then the alternating current variable frequency motor (5-1) drives the pair of ball screw mechanisms (4) to synchronously rotate.

9. A soft metal strip wind-up tension system as claimed in claim 3, wherein: and a second oil cylinder (8-10) is arranged on one hinged side of the upper seat (8-2) and the lower seat (8-1), two ends of the second oil cylinder (8-10) are respectively hinged to the top of the upper seat (8-2) and the bottom of the lower seat (8-1), and after the first locking device (8-7) is unlocked, the upper seat (8-2) is upwards opened around the pin shaft (8-11) through retraction of the second oil cylinder (8-10).

10. The soft metal strip take-up tension system of claim 4, wherein: the front side and the rear side of the upper rack (10-1) and the lower rack (10-2) are symmetrically provided with a pair of air springs (10-9), two ends of each air spring (10-9) are hinged to the upper rack (10-1) and the lower rack (10-2) respectively, and after the second locking device (10-8) is unlocked, the upper rack (10-1) is opened upwards around the hinged shaft (10-11) through the pair of air springs (10-9).