CN211140982U

CN211140982U - Steel band mounting structure of steel band unreeling machine

Info

Publication number: CN211140982U
Application number: CN201921805484.1U
Authority: CN
Inventors: 丁胜仁; 张异孟; 郭俊虎; 耿伟
Original assignee: Henan Xingtian Equipment Technology Co ltd
Current assignee: Henan Xingtian Equipment Technology Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-07-31
Anticipated expiration: 2029-10-23

Abstract

The utility model relates to a steel band mounting structure of steel band machine of unreeling, it includes frame and center pin, and the center pin level sets up, and the one end gyration of center pin is supported in the frame, the one end that the center pin is close to the frame is provided with the rotary disk, and the outside of center pin is provided with a plurality of supporting shoes, a plurality of supporting shoes along the circumference evenly distributed of center pin, supporting shoe sliding connection is on the rotary disk, and the supporting shoe is at the slip direction of rotary disk along the radial direction of rotary disk, be connected with two connecting rods on the supporting shoe, connecting rod one end articulates on the supporting shoe, and the. The utility model discloses have the contact surface that increases supporting shoe and steel band book, improve the effect to the fixed fastness of steel band roll up.

Description

Steel band mounting structure of steel band unreeling machine

Technical Field

The utility model belongs to the technical field of a steel band unreels and specifically relates to a steel band mounting structure of steel band machine of unreeling is related to.

Background

Door plant or curtain board are when carrying out production, and the raw materials of using need unreel in the coiled raw materials use in need unreeling to need use the steel band to unreel with being coiled steel band book, make the steel band book exhibition flat monolayer steel band of becoming, cut out the steel band again, punch a hole and bend, thereby accomplish the production of door plant and curtain board.

Patent document No. CN105312355B discloses a steel strip uncoiler, which comprises a frame, wherein the frame is rotatably connected to a central shaft, the central shaft is connected to a driving device, the central shaft is provided with a supporting block, a supporting column is arranged between the supporting block and the central shaft, the central shaft is provided with a sliding seat, the sliding seat is connected to a hydraulic cylinder, one end of the supporting column is hinged to the sliding seat, the other end of the supporting column is hinged to the supporting block, one end of the supporting block is hinged to a rotating disk fixed on the central shaft, when the hydraulic cylinder outputs, the sliding seat moves along the length direction of the central shaft, so that the supporting column pushes the supporting block to move towards the central direction far away from the central shaft, the frame is also provided with a pinch roller device, the pinch roller device comprises a rotating shaft arranged on the frame, the rotating shaft, and the steel strip coil is extruded to prevent the steel strip coil from loosening.

However, in such a structure, because the supporting block is close to the central axis at the side far from the rotating disk under the action of the support column, the steel strip coil is sleeved on the central axis, and the supporting block is positioned at the center of the steel strip coil.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a steel band mounting structure of steel band unreeling machine, it has the contact surface that increases supporting shoe and steel band and rolls up, improves the effect to the fixed fastness of steel band book.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a steel band mounting structure of steel band machine of unreeling, includes frame and center pin, and the center pin level sets up, and the one end gyration of center pin is supported in the frame, the one end that the center pin is close to the frame is provided with the rotary disk, and the outside of center pin is provided with a plurality of supporting shoes, a plurality of supporting shoes along the circumference evenly distributed of center pin, supporting shoe sliding connection is on the rotary disk, and the supporting shoe is at the slip direction of rotary disk along the radial direction of rotary disk, be connected with two connecting rods on the supporting shoe, connecting rod one end articulates on the supporting shoe.

Through adopting the above technical scheme, during the use, the center pin level sets up, the one end gyration of center pin is supported in the frame, with the steel band book cover on the center pin, the centre bore of steel band book is greater than the size of center pin, and the supporting shoe is located the inside of steel band book, supporting shoe sliding connection is on the rotary disk, the supporting shoe is connected with two connecting rods, the connecting rod is under overspeed device tensioner's effect, can remove along the radial direction of rotary disk, thereby when making the supporting shoe outwards open, can make the supporting shoe wholly lean on the inner wall to the centre bore, the contact surface of supporting shoe with the centre bore inner wall has been improved, reduce not hard up of steel band book, thereby improve the fixed fastness to the.

The utility model discloses further set up to: the tensioning device comprises two sliding blocks, the two sliding blocks are respectively connected with a nut, the sliding blocks are in sliding fit with the nuts, the sliding direction of the sliding blocks on the nuts is parallel to the length direction of the central shaft, a compression spring is arranged between the two sliding blocks, two ends of the compression spring are respectively abutted against the two sliding blocks, and one end, away from the supporting block, of the connecting rod is hinged to the sliding blocks.

Through adopting above-mentioned technical scheme, compression spring's both ends butt respectively on two sliders, the equal sliding connection of two sliders to compression spring is a pair of relative power to the power that two sliders produced, and then the effort to two sliders is the same, makes the supporting shoe roll up the effort at both ends to the steel band and equals, further improves and rolls up fixed homogeneity to the steel band.

The utility model discloses further set up to: the nut is connected with a driving device, the driving device comprises a screw rod, the thread turning directions of two ends of the screw rod are opposite, the two nuts are respectively in thread fit with two ends of the screw rod, a driving motor is arranged at the end part of the screw rod, the driving motor is fixed on the rotating disc, and the output end of the driving motor is coaxially fixed on the screw rod; the nut is provided with a sliding chute, and the sliding block is in sliding fit in the sliding chute; one ends, far away from the supporting blocks, of the two connecting rods incline towards the center of the screw, and one ends, far away from the center of the screw, of the sliding chutes are provided with limiting surfaces.

Through adopting above-mentioned technical scheme, driving motor fixes on the rotary disk, and when driving motor started, driving motor's output area drove the screw rod and rotates, and the screw rod rotates and can take nut relative movement, and when spacing face and slider contact, the slider was being pushed to the nut, makes the slider take the supporting shoe to move to the direction that is close to the center pin to make the supporting shoe loosen the steel band book, conveniently change the steel band book.

The utility model discloses further set up to: be provided with uide bushing and guide bar between two sliders, the uide bushing endotheca is equipped with the guide bar, and the guide bar is pegged graft with the uide bushing to the guide bar is kept away from the one end of uide bushing and is fixed on a slider, and the one end that the guide bar was kept away from to the uide bushing is fixed on another slider, and compression spring overlaps on guide bar and uide bushing.

Through adopting above-mentioned technical scheme, the uide bushing is pegged graft with the guide bar, and compression spring overlaps on uide bushing and guide bar, and when two slider relative movement, compression spring receives the support of uide bushing and guide bar, prevents that compression spring from transversely buckling.

The utility model discloses further set up to: the rotary plate is provided with a T-shaped groove, the length direction of the T-shaped groove is along the radial direction of the rotary plate, a T-shaped block is arranged in the T-shaped groove and fixed on the supporting block, and the T-shaped block is in sliding fit with the T-shaped groove.

Through adopting above-mentioned technical scheme, set up the T-slot on the rotary disk, T-shaped piece sliding fit is at the T-slot, and the supporting shoe is fixed on T-shaped piece to make the sliding connection of supporting shoe and rotary disk relatively firm.

The utility model discloses further set up to: the number of the supporting blocks is four.

By adopting the technical scheme, the four supporting blocks are arranged, the four supporting blocks have opposite directions to the acting force of the steel strip coil, and the steel strip coil can be stably supported.

The utility model discloses further set up to: the one end that the rotary disk was kept away from to the center pin is provided with strutting arrangement, and strutting arrangement includes the stand, the vertical setting of stand, and the lower extreme of stand is provided with the base, has seted up the mounting hole on the base, and the lower extreme of stand supports in the mounting hole, and the upper end of stand is provided with flexible subassembly, installs the supporting seat on the flexible subassembly, is provided with two supporting wheels on the supporting seat, and the supporting wheel gyration is supported on the supporting seat, and the distance between two supporting wheels is less than the diameter of center pin.

Through adopting above-mentioned technical scheme, install the supporting seat on the flexible subassembly, be provided with two supporting wheels on the supporting seat and be used for the support center axle, when the steel tape roll needs to be changed, can flexible subassembly with supporting seat downstream, take off the stand from the base again to make things convenient for the installation of steel tape roll relatively, the both ends of center axle support relatively more stable simultaneously.

The utility model discloses further set up to: the telescopic assembly comprises a stud and a check ring, the lower end of the stud is inserted into the upper end of the stand column, the check ring is in threaded connection with the stud and abuts against the upper end of the stand column, and a force application rod is arranged on the side wall of the check ring.

By adopting the technical scheme, the lower end of the stud is inserted into the upper end of the stand column, the check ring is abutted against the upper end of the stand column, the force application rod facilitates the rotation of the check ring by a worker, and the check ring is connected with the screw thread of the stud to enable the stud to move up and down in the stand column, so that the operation is more convenient.

To sum up, the utility model discloses a beneficial technological effect does:

1. one end of the central shaft is rotatably supported on the rack, the steel strip coil is sleeved on the central shaft, the supporting block is positioned in the steel strip coil and is connected to the rotating disk in a sliding manner, the supporting block is connected with two connecting rods, and the connecting rods can move along the radial direction of the rotating disk under the action of the tensioning device, so that the supporting block integrally leans against the inner wall of the central hole, and the fixing firmness of the steel strip coil is improved;

2. the two ends of the compression spring are respectively abutted against the two sliding blocks and the two sliding blocks are connected in a sliding manner, so that the force generated by the compression spring to the two sliding blocks is a pair of opposite force, the acting force to the two sliding blocks is the same, the acting force of the supporting block to the two ends of the steel strip coil is equal, and the fixing uniformity of the steel strip coil is improved;

3. the steel strip coil is fixed on the rotating disc through the driving motor, when the driving motor is started, the output end of the driving motor drives the screw to rotate, the screw rotates to drive the nut to move relatively, when the limiting surface is in contact with the sliding block, the sliding block is pushed by the nut, the sliding block drives the supporting block to move towards the direction close to the central shaft, and therefore the supporting block loosens the steel strip coil and the steel strip coil is convenient to replace.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;

FIG. 3 is a schematic view of the internal structure of the central shaft;

FIG. 4 is a schematic structural view of the present invention without a frame;

FIG. 5 is a schematic structural view of the support device;

figure 6 is a schematic diagram of the construction of the puck assembly.

In the figure, 1, a frame; 2. a central shaft; 21. a support block; 3. a support device; 31. a column; 32. a base; 33. mounting holes; 34. a telescoping assembly; 341. a stud; 342. a retainer ring; 343. a force application rod; 35. a supporting seat; 36. a support wheel; 4. a steel strip coil; 5. rotating the disc; 51. a T-shaped slot; 52. a T-shaped block; 53. teeth; 6. a pinch roller device; 61. a fixed shaft; 62. pressing the arm; 63. a pressing seat; 631. a support; 632. a roller; 64. a tension spring; 65. a hydraulic cylinder; 71. a screw; 72. a drive motor; 73. a nut; 74. a connecting rod; 8. a tensioning device; 81. a slider; 82. a chute; 83. a limiting surface; 84. a compression spring; 85. a guide sleeve; 86. a guide bar; 91. a gear; 92. a worm gear; 93. a worm; 94. a flywheel; 95. three-phase asynchronous machine.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a steel band unreeling machine, including frame 1 and

center pin

2, 2 levels of center pin set up, the one end gyration of center pin 2 is supported in frame 1, the other end is provided with strutting arrangement 3, be used for the cover to establish steel band book 4 on the center pin 2, and the centre bore diameter of steel band book 4 is greater than the diameter of center pin 2, the one end of keeping away from strutting arrangement 3 at center pin 2 is provided with rotary disk 5, the center of rotary disk 5 coincides with the center of center pin 2, rotary disk 5 fixes on center pin 2, be provided with supporting shoe 21 between center pin 2 and steel band book 4, supporting shoe 21 installs on center pin 2 and the butt is on the central hole inner wall of steel band book 4, thereby make the steel band book 4 and center pin 2 relatively fixed, when center pin 2 rotates, center pin 2 can take steel band.

Referring to fig. 2 and 4, one surface of the rotating disc 5, which is close to the supporting blocks 21, is provided with T-shaped grooves 51, the length direction of the T-shaped grooves 51 is along the radial direction of the rotating disc 5, four supporting blocks 21 are provided, the four supporting blocks 21 are uniformly distributed along the circumferential direction of the central shaft 2, and each supporting block 21 corresponds to one T-shaped groove 51; a T-shaped block 52 is arranged in the T-shaped groove 51, the T-shaped block 52 is in sliding fit with the T-shaped groove 51, and the T-shaped block 52 is fixed on the supporting block 21, so that the supporting block 21 can slide along the length direction of the T-shaped groove 51, and the supporting block 21 can loosen or tightly press the steel strip coil 4.

Referring to fig. 3, a screw 71 is disposed inside the central shaft 2, a central line of the screw 71 coincides with a central line of the central shaft 2, two ends of the screw 71 are rotatably supported on the central shaft 2, a driving motor 72 is disposed at an end of the screw 71, the driving motor 72 is fixed on the rotating disc 5, and an output end of the driving motor 72 is coaxially fixed at an end of the screw 71; the thread directions of the two ends of the screw rod 71 are opposite, one nut 73 is respectively arranged at the two ends of the screw rod 71, the two nuts 73 are in threaded connection with the two ends of the screw rod 71, the nuts 73 are positioned in the central shaft 2, the nuts 73 are in sliding fit on the central shaft 2, when the screw rod 71 rotates, the nuts 73 move along the length direction of the screw rod 71, and the two nuts 73 are relatively close to or far away from each other.

Referring to fig. 3, two links 74 are provided on each support block 21, the two links 74 have the same length, one end of each link 74 is hinged to the support block 21, the other end is connected to the tensioning device 8, and the tensioning device 8 is mounted on two nuts 73. One end of each of the two connecting rods 74, which is far away from the supporting block 21, is inclined towards the middle position of the screw 71, and under the action of the tensioning device 8, the connecting rods 74 rotate around the hinge points with the supporting block 21, so that the two connecting rods 74 push the supporting block 21 to move simultaneously, and the moving distances of the supporting block 21 at the two ends of the central shaft 2 are equal, so that the supporting block 21 can fix the steel strip coils 4 with central holes of various diameters, and when the steel strip coils are fixed, the contact surface between the supporting block 21 and the central holes is large, and the fixation is firm.

Referring to fig. 3, the tensioning device 8 includes two sliding blocks 81, the two sliding blocks 81 are oppositely disposed on the two nuts 73, a sliding groove 82 is disposed on the nuts 73, the sliding blocks 81 are slidably fitted in the sliding groove 82, the length direction of the sliding groove 82 is disposed along the length direction of the screw 71, one end of the sliding groove 82 away from the middle of the screw 71 is provided with a limiting surface 83, and the limiting surface 83 is used for pushing the sliding blocks 81 to move towards the middle of the screw 71; a compression spring 84 is arranged between the two sliding blocks 81, a guide sleeve 85 and a guide rod 86 are arranged in the middle of the compression spring 84, the guide rod 86 is inserted into the guide sleeve 85, one end, far away from the guide sleeve 85, of the guide rod 86 is fixed on one sliding block 81, one end, far away from the guide rod 86, of the guide sleeve 85 is fixed on the other sliding block 81, two ends of the compression spring 84 are respectively abutted to the two sliding blocks 81, and the two sliding blocks 81 are driven to move back and forth by the acting force of the compression spring 84. The ends of the two connecting rods 74 on the same supporting block 21, which ends are far away from the supporting block 21, are respectively hinged on the two sliding blocks 81.

When the steel strip coil 4 is used, the steel strip coil 4 is firstly sleeved on the four supporting blocks 21, the four supporting blocks 21 are located in the central hole of the steel strip coil 4, the driving motor 72 works, the driving motor 72 drives the screw rod 71 to rotate, the nut 73 at the end of the screw rod 71 moves back to back, so that under the action of the compression spring 84, the two sliding blocks 81 move along with the nut 73, the supporting blocks 21 move towards the side wall of the central hole, when the supporting blocks 21 abut against the side wall of the central hole, the sliding blocks 81 stop moving, and the nut 73 continues to move independently, so that the sliding blocks 81 are separated from the limiting; even if the nut 73 moves a little along the length direction of the screw 71 in the process of unwinding the steel strip coil 4, the acting force of the compression spring 84 can still ensure the extrusion of the sliding block 81; after the steel strip coil 4 is completely unreeled, the driving motor 72 rotates reversely, the driving motor 72 drives the screw rod 71 to rotate, so that the two nuts 73 move relatively, the limiting surface 83 on the sliding block 81 pushes the two sliding blocks 81 to move relatively, the supporting block 21 moves towards the center of the central shaft 2, and the steel strip coil 4 is loosened.

Referring to fig. 4, the side wall of the rotating disc 5 is provided with teeth 53, the rotating disc 5 is connected with a gear 91, the number of the teeth 53 on the rotating disc 5 is greater than that of the teeth 91, the gear 91 is rotatably supported on the frame 1, and the gear 91 is meshed with the teeth 53 on the side wall of the rotating disc 5, so that the gear 91 is in transmission connection with the rotating disc 5. A worm wheel 92 is coaxially and fixedly arranged on the gear 91, the worm wheel 92 is connected with a worm 93, the worm 93 is meshed with the worm wheel 92, the worm 93 is rotatably supported on the rack 1, the helix angle of the worm 93 is larger than the equivalent friction angle between the worm wheel 92 and the worm 93, so that the worm 93 can drive the worm wheel 92, and the worm wheel 92 can drive the worm 93 reversely. The worm 93 is rotatably supported on the frame 1, one end of the worm 93 is coaxially and fixedly provided with a flywheel 94, the other end of the worm 93 is provided with a three-phase asynchronous motor 95, and the output end of the three-phase asynchronous motor 95 is coaxially fixed on the worm 93. The three-phase asynchronous motor 95 is fixed on the rack 1, when the three-phase asynchronous motor 95 brakes, the three-phase asynchronous motor 95 generates reverse braking force on the worm 93, when the rotating disc 5 rotates, the rotating disc 5 drives the gear 91, the gear 91 drives the worm wheel 92, and the worm wheel 92 is subjected to reverse acting force of the worm 93, so that the rotating speed of the rotating disc 5 is rapidly reduced. When the three-phase asynchronous motor 95 works, the three-phase asynchronous motor 95 drives the worm 93 to rotate, the worm 93 drives the worm wheel 92, and the worm wheel 92 and the gear 91 synchronously rotate, so that the rotating disc 5 rotates to unreel the steel strip coil 4 on the central shaft 2.

Referring to fig. 5, the supporting device 3 includes an upright column 31, the upright column 31 is vertically disposed, a base 32 is disposed at a lower end of the upright column 31, a mounting hole 33 is formed in the base 32, a lower end of the upright column 31 abuts against the mounting hole 33, a telescopic assembly 34 is disposed at an upper end of the upright column 31, the telescopic assembly 34 includes a stud 341 and a retainer ring 342, the upright column 31 is of a hollow structure, a lower end of the stud 341 is inserted into an upper end of the upright column 31, a support seat 35 is disposed at an upper end of the stud 341, the retainer ring 342 is threadedly connected to the stud 341 and abuts against an upper end surface of the upright column 31, a force applying rod 343 is disposed on a side wall of the retainer ring 342, the force applying rod 343 is disposed along a radial direction of the retainer ring 342, the support seat 35 is fixed at the upper end of the stud 341 so that the support seat 35 is supported on a side wall of the central shaft 2, two supporting, the distance between the two support wheels 36 is smaller than the diameter of the central shaft 2, so that when the support wheels 36 are supported on the central shaft 2, the two support wheels 36 are simultaneously tangent to the side wall of the central shaft 2. When in use, the stud 341 can be moved up or down by rotating the retainer ring 342, and when moving down, the support wheel 36 can be separated from the side wall of the central shaft 2, and the column 31 can be removed from the base 32.

Referring to fig. 1 and 6, a pinch roller device 6 is arranged on the outer wall of the steel strip coil 4, the pinch roller device 6 comprises a fixed shaft 61, two pressure arms 62 and a pinch seat 63, the fixed shaft 61 is fixed on the frame 1, the length direction of the fixed shaft 61 is parallel to the length direction of the central shaft 2, the pressure arms 62 are integrally arc-shaped, the number of the pressure arms 62 is two, two arc-shaped openings of the pressure arms 62 are oppositely arranged, and the steel belt coil 4 is arranged between the two pressure arms 62, one end of each pressure arm 62 is rotatably connected to the fixed shaft 61, the pressing seat 63 is provided with one end of each pressure arm 62 far away from the fixed shaft 61, a tension spring 64 is arranged between the two pressure arms 62, two ends of each tension spring 64 are respectively fixed at the middle parts of the two pressure arms 62, the two pressure arms 62 are driven to contract inwards by the acting force direction of the tension spring 64, so that the pressing base 63 abuts against the outer wall of the steel strip coil 4, and further presses the steel strip coil 4, and the loosening of the steel strip coil 4 is reduced.

Referring to fig. 6, the pressing base 63 includes a support 631 and a roller 632, the support 631 is arc-shaped, the arc-shaped opening of the support 631 faces the steel strip coil 4, the middle of the support 631 is rotatably connected to the pressing arm 62, and the rotation axes of the support 631 and the pressing arm 62 are parallel to the center line of the central shaft 2; the number of the rollers 632 is two, the two rollers 632 are respectively rotatably connected to two ends of the support 631, the center line of the roller 632 is parallel to the center line of the central shaft 2, and the roller 632 is pressed on the outer wall of the steel strip coil 4 under the action of the tension spring 64. Be provided with pneumatic cylinder 65 between two pressure arms 62, the both ends of pneumatic cylinder 65 articulate respectively on two pressure arms 62, and pneumatic cylinder 65 is the single-action work, and the direction of work is outside extension, and when pneumatic cylinder 65 worked, pneumatic cylinder 65 pushed two pressure arms 62 and opens, makes pressure arm 62 rotate around fixed axle 61 to compress tightly seat 63 and break away from steel band book 4, conveniently put into next steel band book 4.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a steel band mounting structure of steel band decoiler, includes frame (1) and center pin (2), center pin (2) level setting, and the one end gyration of center pin (2) is supported in frame (1), the one end that center pin (2) are close to frame (1) is provided with rotary disk (5), and the outside of center pin (2) is provided with a plurality of supporting shoes (21), a plurality of supporting shoes (21) along the circumference evenly distributed of center pin (2), its characterized in that: the supporting block (21) is connected to the rotating disk (5) in a sliding mode, the supporting block (21) is connected to the radial direction of the rotating disk (5) in the sliding direction of the rotating disk (5), two connecting rods (74) are connected to the supporting block (21), one end of each connecting rod (74) is hinged to the supporting block (21), and the other end of each connecting rod (74) is connected with a tensioning device (8).

2. The steel strip mounting structure of a steel strip unreeling machine according to claim 1, characterized in that: the tensioning device (8) comprises two sliding blocks (81), the two sliding blocks (81) are respectively connected with a nut (73), the sliding blocks (81) are in sliding fit on the nuts (73), the sliding direction of the sliding blocks (81) on the nuts (73) is parallel to the length direction of the central shaft (2), a compression spring (84) is arranged between the two sliding blocks (81), two ends of the compression spring (84) are respectively abutted to the two sliding blocks (81), and one end, away from the supporting block (21), of the connecting rod (74) is hinged to the sliding blocks (81).

3. The steel strip mounting structure of a steel strip unreeling machine according to claim 2, characterized in that: the nut (73) is connected with a driving device, the driving device comprises a screw rod (71), the thread turning directions of two ends of the screw rod (71) are opposite, the two nuts (73) are respectively in thread fit with two ends of the screw rod (71), a driving motor (72) is arranged at the end part of the screw rod (71), the driving motor (72) is fixed on the rotating disc (5), and the output end of the driving motor (72) is coaxially fixed on the screw rod (71); the nut (73) is provided with a sliding groove (82), and the sliding block (81) is in sliding fit in the sliding groove (82); one ends of the two connecting rods (74) far away from the supporting block (21) incline towards the center of the screw rod (71), and one ends of the sliding grooves (82) far away from the center of the screw rod (71) are provided with limiting surfaces (83).

4. The steel strip mounting structure of a steel strip unreeling machine according to claim 2 or 3, characterized in that: be provided with uide bushing (85) and guide bar (86) between two slider (81), uide bushing (85) endotheca is equipped with guide bar (86), guide bar (86) are pegged graft with uide bushing (85), and guide bar (86) are kept away from the one end of uide bushing (85) and are fixed on a slider (81), the one end that guide bar (86) were kept away from in uide bushing (85) is fixed on another slider (81), compression spring (84) cover is on guide bar (86) and uide bushing (85).

5. The steel strip mounting structure of a steel strip unreeling machine according to claim 1, characterized in that: the rotary disc (5) is provided with a T-shaped groove (51), the length direction of the T-shaped groove (51) is along the radial direction of the rotary disc (5), a T-shaped block (52) is arranged in the T-shaped groove (51), the T-shaped block (52) is fixed on the supporting block (21), and the T-shaped block (52) is in sliding fit in the T-shaped groove (51).

6. The steel strip mounting structure of a steel strip unreeling machine according to claim 1, characterized in that: the number of the supporting blocks (21) is four.

7. The steel strip mounting structure of a steel strip unreeling machine according to claim 1, characterized in that: one end of center pin (2) far away from rotary disk (5) is provided with strutting arrangement (3), strutting arrangement (3) are including stand (31), stand (31) vertical setting, the lower extreme of stand (31) is provided with base (32), mounting hole (33) have been seted up on base (32), the lower extreme of stand (31) supports in mounting hole (33), the upper end of stand (31) is provided with flexible subassembly (34), install supporting seat (35) on flexible subassembly (34), be provided with two supporting wheels (36) on supporting seat (35), supporting wheel (36) gyration is supported on supporting seat (35), the distance between two supporting wheels (36) is less than the diameter of center pin (2).

8. The steel strip mounting structure of a steel strip unreeling machine according to claim 7, characterized in that: the telescopic assembly (34) comprises a stud (341) and a check ring (342), the lower end of the stud (341) is inserted into the upper end of the upright post (31), the check ring (342) is in threaded connection with the stud (341), the check ring (342) abuts against the upper end of the upright post (31), and a force application rod (343) is arranged on the side wall of the check ring (342).