CN211521048U - Uncoiling machine - Google Patents

Abstract

The utility model relates to an unwinding machine relates to spinning machine's technical field, including frame, work or material rest, drive roller, be provided with the blackboard in the frame, be provided with the positioner to the cloth location in the frame, positioner includes the positioning seat, the registration roller, the slider, the compression roller, a spring, locating component, and the positioning seat setting is in the frame, and the registration roller rotates and sets up on the positioning seat, and the slider slides and sets up on the positioning seat, and the compression roller rotates and sets up on the slider, and the spring both ends are connected with slider and positioning seat respectively, and locating component sets up in the frame and comes to fix a position the cloth. The utility model discloses a compression roller compresses tightly the cloth with the registration roller cooperation under the effect of spring for the cloth pastes tightly on the blackboard, and locating component has reduced the probability that the cloth skidded on the drive roller simultaneously, has reduced the cloth with this and can not paste the probability tightly on the blackboard because shake and skid, thereby has improved the cloth and has examined the efficiency of time measuring.

Description

Uncoiling machine

Technical Field

The utility model belongs to the technical field of spinning machine's technique and specifically relates to an unwinder is related to.

Background

The dyeing and finishing process is a chemical and physical processing process of the fabric on special equipment through dyes, medicaments and auxiliaries under certain process conditions. The cloth needs to be opened before the dyeing and finishing process, and the used machine equipment is an unwinder.

Among the prior art, can refer to the chinese utility model patent that the grant bulletin number is CN208790785U, it discloses an unwinder convenient to inspection cloth, which comprises a frame, the work or material rest, the drive roller, servo motor, just be located in the frame and be provided with the blackboard that supplies cloth conflict between work or material rest and the drive roller, just be located in the frame that the blackboard is close to one side of work or material rest and rotate and be connected with the two-way threaded rod of conflict on cloth, be provided with the driving motor of connection on the two-way threaded rod in the frame, one side that the two-way threaded rod was kept away from to the blackboard is provided with the connecting rod, sets up. When cloth is conveyed to the driving roller from the material rack, the cloth firstly passes through the blackboard, and because the modern blank cloth which is not dyed and finished is usually white, when the cloth passes through the blackboard, the position of the surface of the cloth with the flaw can expose the color of the blackboard, and the black of the blackboard and the white of the cloth can be clearly compared, so that an operator can conveniently check the flaw on the cloth in time.

The technical scheme has the following defects: cloth is defeated under the drive of drive roller, because the transport speed of cloth is very fast, the cloth produces the shake easily, the drive roller rely on simultaneously and the cloth between the frictional force drive cloth remove, the cloth skids easily on the drive roller, consequently the cloth when the blackboard, the cloth can not smooth paste tightly on the blackboard, leads to the staff can not examine the flaw on the cloth very fast when the inspection to the efficiency of inspection cloth has been reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an uncoiling machine, compression roller and registration roller cooperation compress tightly the cloth, and positioning assembly has reduced the probability of skidding of cloth at the drive roller simultaneously to this has reduced the cloth because the shake and the probability that can not paste tightly on the blackboard with skidding, thereby has improved the cloth and has examined the efficiency of time measuring.

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

an uncoiling machine comprises a machine frame, a material rack arranged on the machine frame, a driving roller rotatably arranged on the machine frame, a blackboard which is abutted against the cloth is arranged on the machine frame between the driving roller and the material rack, a positioning device which is used for positioning the cloth is arranged on the machine frame, the positioning device comprises a positioning seat, positioning rollers, a sliding block, a compression roller, a spring and a positioning assembly, the positioning seat is arranged on the machine frame at two groups at intervals along the running direction of the cloth and is respectively positioned on two sides of the blackboard, the positioning rollers are rotatably arranged on the positioning seat, the axes of the positioning rollers are parallel to the axes of the driving rollers, the sliding block is arranged on the positioning seat above the positioning rollers in a sliding manner along the height direction of the positioning seat, the compression roller is rotatably arranged on the sliding block, the axes of the compression roller are parallel to the axes of the positioning rollers, two ends of the spring, the positioning assembly is arranged on the frame and matched with the driving roller to position the cloth.

Through adopting above-mentioned technical scheme, place the work or material rest with the yardage roll, then the lifting compression roller and pass the cloth between registration roller and the compression roller, loosen the compression roller, the compression roller compresses tightly the cloth with the registration roller cooperation under the effect of spring, make the cloth paste tightly on the blackboard, at last walk around the cloth between drive roller and the locating component, the drive roller rotates and drives the cloth and remove, consequently, compress tightly the cloth with the registration roller cooperation under the effect of spring through the compression roller, make the cloth paste tightly on the blackboard, locating component has reduced the probability that the cloth skidded at the drive roller simultaneously, thereby reduced the cloth because shake and skid and can not paste tightly the probability on the blackboard, thereby the efficiency of cloth detection time measuring has been improved.

Preferably, locating component includes mount pad, dwang, live-rollers, location cylinder, the mount pad sets up in the frame, the dwang rotates to set up on the mount pad, the live-rollers rotates to set up on the dwang and is located the drive roller top and compresses tightly the cloth with the drive roller cooperation, the location cylinder rotates to set up in the frame and the piston rod rotates with the dwang to be connected.

Through adopting above-mentioned technical scheme, location cylinder starts to drive the dwang and rotates, and the dwang rotates and drives the live-rollers rotation, and the live-rollers rotates and adjusts the distance between live-rollers and the drive roller to this thickness that adapts to the cloth compresses tightly the purpose of cloth, has reduced the probability that the cloth skidded on the drive roller.

Preferably, the rotating roller and the driving roller are sleeved with rubber layers.

Through adopting above-mentioned technical scheme, through the setting of rubber layer, further reduced the probability that the cloth skidded on the drive roller.

Preferably, the positioning seat is provided with two fixed plates at intervals on the rack close to one side of the rack, the two fixed plates rotate at intervals along the height direction of the fixed plates on the side wall on the opposite side of the fixed plates and are provided with two human open width screws abutting against the cloth, the cloth passes through the two open width screws, threads with opposite thread line directions are arranged on the open width screws, and the thread spiral lines with one ends close to each other of the two open width screws are opposite in direction.

Through adopting above-mentioned technical scheme, the cloth is through two open width screw rods, and two open width screw rods expand the cloth, therefore the cloth can both expand when not only to that orientation fold to this probability that takes place the fold when having reduced the cloth and having pasted tightly on the blackboard, thereby efficiency when having improved the detection cloth.

Preferably, a sliding groove for sliding the sliding block along the height direction of the positioning seat is formed in the positioning seat above the positioning roller, a pull rod extending into the sliding groove and connected with the sliding block is arranged at the top end of the positioning seat in a sliding mode, a handle disc is arranged at one end, far away from the sliding block, of the pull rod, and the spring is sleeved on the pull rod.

Through adopting above-mentioned technical scheme, it moves and drives the pull rod removal to grab the commentaries on classics hand dish, and the pull rod removes and drives slider and compression roller removal for the compression roller moves towards the direction of keeping away from the registration roller, has increased the distance between registration roller and the compression roller with this, thereby can pass the cloth between registration roller and the compression roller, then loosens the tongs dish, and the compression roller compresses tightly the cloth with the registration roller cooperation under the effect of spring.

Preferably, the work or material rest includes mounting bracket, backing roll, backup pad, the mounting bracket sets up in the frame, the backing roll rotates to set up on the mounting bracket and horizontal interval is provided with two and supports the yardage roll, the backup pad interval sets up on the mounting bracket and contradicts on the both ends of yardage roll.

Through adopting above-mentioned technical scheme, carry on spacingly through the backup pad to the yardage roll, reduced the yardage roll probability that slides on the backing roll at the roll-off in-process, reduced the cloth and removed the interference that produces when examining the cloth, efficiency when having improved the inspection cloth.

Preferably, the mounting frame is provided with an adjusting device for adjusting the distance between the two supporting plates.

Through adopting above-mentioned technical scheme, when the yardage roll width changed, the distance between two backup pads also need adjust the width that adapts to the yardage roll to can be better play limiting displacement to the yardage roll, consequently adjust the width that the distance between two backup pads adapts to the yardage roll through adjusting device.

Preferably, adjusting device includes fixing base, fixed block, adjusting screw, slide bar, drive assembly, the fixing base setting is provided with two on the mounting bracket and the interval, just the backup pad is located between two fixing bases, the fixed block sets up in the backup pad, adjusting screw rotates to set up on the lateral wall of two relative one sides of fixing base and offers two sections opposite screw threads of helix and respectively with fixed block threaded connection, the slide bar setting just slides on the lateral wall of two relative one sides of fixing base and wears to establish on the fixed block, drive assembly sets up on the fixing base and drives adjusting screw and rotate.

By adopting the technical scheme, the driving component is started to drive the adjusting screw to rotate, the adjusting screw rotates to drive the fixed block to slide along the sliding rod, and the fixed block moves to drive the supporting plate to move, so that the aim of driving the supporting plate to move by starting the driving component is fulfilled.

Preferably, the driving assembly comprises a first gear, a driving motor and a second gear, the first gear is arranged on the adjusting screw, the driving motor is arranged on the fixed seat, and the second gear is arranged on an output shaft of the driving motor and meshed with the first gear.

Through adopting above-mentioned technical scheme, driving motor starts to drive the second gear and rotates, and the second gear rotates and drives first gear rotation, and first gear rotation drives adjusting screw to rotate to this reaches driving motor and starts to drive adjusting screw pivoted purpose.

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

1. the press roller is matched with the positioning roller under the action of the spring to press the cloth, so that the cloth is attached to the blackboard, and meanwhile, the positioning assembly reduces the probability of slipping of the cloth on the driving roller, so that the probability that the cloth cannot be attached to the blackboard due to shaking and slipping is reduced, and the efficiency of cloth detection is improved;

2. the cloth is unfolded through the two open-width screws, so that the cloth can be unfolded no matter the cloth is folded in the direction in the cloth conveying process, the probability of folding when the cloth is attached to a blackboard is reduced, and the cloth detection efficiency is improved;

3. the cloth roll is limited by the supporting plate, so that the probability of slippage of the cloth roll on the supporting roller in the unwinding process is reduced, the interference generated when the cloth moves to inspect the cloth is reduced, and the cloth inspecting efficiency is improved;

4. the driving motor is started to drive the supporting plates to move, so that the distance between the two supporting plates is adjusted to adapt to the width of the cloth roll.

Drawings

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

FIG. 2 is a schematic view of the structure of the adjustment device;

fig. 3 is a schematic view of a partial structure of the present invention, which mainly shows the positioning seat, the positioning roller, the compression roller, the slider and the spring;

fig. 4 is a schematic structural view of the positioning assembly.

Reference numerals: 1. a frame; 11. a drive roller; 12. rotating the motor; 13. a fixing plate; 14. an open width screw; 15. a blackboard; 16. a rotating seat; 17. a rubber layer; 2. a material rack; 21. a mounting frame; 22. a support roller; 23. a support plate; 3. an adjustment device; 31. a fixed seat; 32. a fixed block; 33. adjusting the screw rod; 34. a slide bar; 35. a drive assembly; 351. a first gear; 352. a drive motor; 353. a second gear; 4. a positioning device; 41. positioning seats; 411. a chute; 42. a positioning roller; 43. a slider; 431. a pull rod; 432. a gripper disc; 44. a compression roller; 45. a spring; 46. a positioning assembly; 461. a mounting seat; 462. rotating the rod; 463. a rotating roller; 464. and (5) positioning the air cylinder.

Detailed Description

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

Referring to fig. 1 and fig. 2, for the utility model discloses an uncoiling machine, which comprises a frame 1, the work or material rest 2 of setting in frame 1 that is close to frame 1 bottom one side, rotate and install the drive roller 11 in frame 1 that is located work or material rest 2 top, fixed mounting has the rotation motor 12 of being connected with drive roller 11 in frame 1, work or material rest 2 includes mounting bracket 21, backing roll 22, backup pad 23, mounting bracket 21 fixed mounting is in frame 1 that is close to frame 1 bottom one side, backing roll 22 horizontal interval is provided with two and rotates and installs on mounting bracket 21, the yardage roll is placed on two backing rolls 22 simultaneously, and backing roll 22 is parallel with the axis of drive roller 11, backup pad 23 interval is provided with two, and backup pad 23 installs on the mounting bracket 21 that is located backing roll 22 top and contradicts.

The mounting frame 21 is provided with an adjusting device 3 for adjusting the distance between the two support plates 23, the adjusting device 3 comprises a fixed seat 31, a fixed block 32, an adjusting screw 33, a sliding rod 34 and a driving assembly 35, the fixed seat 31 is fixedly mounted at the top end of the mounting frame, the fixed seat 31 is arranged at intervals along the axis of the support roller 22, the two support plates 23 are positioned between the two fixed seats 31, and the fixed seat 31 is positioned at one side of the support plate 23 close to the rack 1; the fixed block 32 is fixedly arranged on the vertical side wall of one side of the support plate 23 close to the rack 1; the adjusting screw 33 is rotatably installed on the side wall of one side opposite to the two fixed seats 31, one end of the adjusting screw 33 penetrates out of the fixed seats 31, and meanwhile, two sections of threads with opposite spiral lines are formed in the adjusting screw 33 and are respectively in threaded connection with the two fixed blocks 32; the sliding rod 34 is fixedly installed on the side wall of the opposite side of the two fixing seats 31, and the sliding rod 34 is located below the adjusting screw 33 and slidably arranged on the fixing block 32.

Drive assembly 35 sets up on the fixing base 31 that adjusting screw 33 wore out, and drive assembly 35 is located two fixing base 31 lateral wall that carry on the back the opposite side mutually, drive assembly 35 drives adjusting screw 33 simultaneously and rotates, drive assembly 35 includes first gear 351, driving motor 352, second gear 353, first gear 351 fixed mounting is on adjusting screw 33 wears out the outer one end of fixing base 31, driving motor 352 fixed mounting is on fixing base 31, second gear 353 is installed on driving motor 352's output shaft, and second gear 353 and first gear 351 meshing. The driving motor 352 is started to drive the second gear 353 to rotate, the second gear 353 rotates to drive the first gear 351 to rotate, the first gear 351 rotates to drive the adjusting screw 33 to rotate, the adjusting screw 33 rotates to drive the fixing block 32 to slide along the sliding rod 34, and the fixing block 32 moves to drive the supporting plates 23 to move, so that the distance between the two supporting plates 23 is adjusted.

Two fixing plates 13 are fixedly installed on the rack 1 between the driving roller 11 and the mounting rack 21 at intervals along the driving roller 11, two open width screws 14 are installed on the side wall of the opposite side of the fixing plate 13 at intervals along the height direction of the fixing plate 13, cloth passes through the two open width screws 14, the two open width screws 14 abut against the cloth, threads with opposite thread lines are arranged on the open width screws 14, and the thread spiral lines of the two open width screws 14 close to one end are opposite in direction.

Referring to fig. 1 and 3, a blackboard 15 abutting against the cloth is fixedly mounted on a frame 1 between a driving roller 11 and a fixing plate 13, a positioning device 4 for positioning the cloth is arranged on the frame 1, and the positioning device 4 comprises a positioning seat 41, a positioning roller 42, a sliding block 43, a pressing roller 44, a spring 45 and a positioning assembly 46; two groups of positioning seats 41 are arranged at intervals along the cloth running direction, each group of positioning seats 41 is provided with two positioning seats and is fixedly arranged on the side wall of one side of the rack 1 opposite to the side wall, and meanwhile, the two groups of positioning seats 41 are respectively positioned on two sides of the blackboard 15; the positioning rollers 42 are rotatably mounted on the side walls of the two opposite sides of the positioning seats 41, and the axes of the positioning rollers 42 are parallel to the axis of the driving roller 11; the two positioning seats 41 are provided with two sliding grooves 411 on the side wall of the opposite side, the sliding grooves 411 are located above the positioning rollers 42, and the sliding blocks 43 are arranged on the sliding grooves 411 in a sliding manner along the height direction of the positioning seats 41.

A pull rod 431 penetrating through the top end of the positioning seat 41 is fixedly installed on the upper surface of the sliding block 43, the pull rod 431 is slidably installed on the positioning seat 41, and a gripper disc 432 is fixedly installed at one end, far away from the sliding block 43, of the pull rod 431; the press roller 44 is rotatably arranged on the side wall at the opposite side of the two slide blocks 43, and the axis of the press roller 44 is parallel to the axis of the positioning roller 42; the spring 45 is sleeved on the pull rod 431 in the sliding groove 411, two ends of the spring 45 respectively abut against the upper surface of the sliding block 43 and the horizontal side wall of the sliding groove 411 above the sliding block 43, the positioning roller 42 is matched with the press roller 44 under the action of the spring 45 to press the cloth, and the cloth passes through the positioning roller 42 and is pressed and attached to the blackboard 15. The gripping handle disc moves to drive the pull rod 431 to move, the pull rod 431 moves to drive the sliding block 43 and the pressing roller 44 to move, so that the pressing roller 44 moves towards the direction far away from the positioning roller 42, the distance between the positioning roller 42 and the pressing roller 44 is increased, the cloth can penetrate between the positioning roller 42 and the pressing roller 44, then the gripping handle disc 432 is released, and the pressing roller 44 is matched with the positioning roller 42 under the action of the spring 45 to press the cloth.

Referring to fig. 1 and 4, the positioning assembly 46 is disposed on the frame 1 above the driving roller 11, and the positioning assembly 46 and the driving roller 11 cooperate to position the cloth, the positioning assembly 46 includes two installation bases 461, a rotating rod 462, a rotating roller 463 and a positioning cylinder 464, the installation bases 461 are disposed at intervals along the driving roller 11, and the installation bases 461 are fixedly mounted on the frame 1 above the driving roller 11; two rotating rods 462 are arranged, and one ends of the two rotating rods 462 are respectively and rotatably installed on the side wall of the opposite side of the two installation seats 461; the rotating roller 463 is rotatably installed on the side wall on the opposite side of the two rotating rods 462, and the rotating roller 463 is located on the side away from the installation seat 461 and above the driving roller 11; a rotating seat 16 is fixedly installed on the frame 1 below the rotating rod 462, the positioning cylinder 464 is rotatably installed on the rotating seat 16, and a piston rod of the positioning cylinder 464 is rotatably connected with a side wall of the rotating rod 462 far away from one side of the installation seat 461.

Place the yardage roll on backing roll 22, then pass the cloth between two open width screw rods 14 in proper order, between registration roller 42 and the compression roller 44, then location cylinder 464 starts to drive dwang 462 rotation, dwang 462 rotates and drives the dwang 463 rotation, the dwang 463 rotates and has increased the distance between dwang 463 and the drive roller 11, consequently, can pass the cloth between dwang 463 and the drive roller 11, location cylinder 464 drives the dwang 463 rotation and comes to compress tightly the cloth with the 11 cooperations of drive roller, rotation motor 12 starts to drive the 11 rotations of drive roller, drive roller 11 rotates and drives the cloth and remove the unwinding of accomplishing the cloth, thereby reduced the cloth because the shake and skid and can not paste the probability on blackboard 15. The rotating roller 463 and the driving roller 11 are both sleeved with a rubber layer 17, and the rubber layer 17 further reduces the probability of the cloth slipping on the driving roller 11.

The implementation principle of the embodiment is as follows:

place the yardage roll on backing roll 22, then pass the cloth between two open width screw rods 14 in proper order, between positioning roller 42 and the compression roller 44, then location cylinder 464 starts to drive rotor 463 and rotates and has increased the distance between rotor 463 and the drive roller 11, consequently can pass the cloth between rotor 463 and the drive roller 11, positioning cylinder 464 drives rotor 463 and rotates and come to compress tightly the cloth with the 11 cooperations of drive roller, it drives the 11 rotations of drive roller to rotate motor 12, drive roller 11 rotates and drives the cloth removal and accomplish the roll-off of cloth, thereby reduced the cloth because the shake can not paste the probability tightly on blackboard 15 with skidding, thereby the efficiency of cloth detection time measuring has been improved.

The gripping rotating disc drives the press roller 44 to move towards the direction far away from the positioning roller 42, so that the distance between the positioning roller 42 and the press roller 44 is increased, cloth can penetrate between the positioning roller 42 and the press roller 44, then the gripping rotating disc 432 is loosened, the press roller 44 is matched with the positioning roller 42 under the action of the spring 45 to press the cloth tightly, so that the cloth can penetrate between the positioning roller 42 and the press roller 44 conveniently, time is saved, and the detection efficiency is improved.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (9)

1. The utility model provides an uncoiling machine, includes frame (1), sets up work or material rest (2) in frame (1), rotates drive roller (11) of setting in frame (1), is located be provided with blackboard (15) of contradicting on the cloth on frame (1) between drive roller (11) and work or material rest (2), its characterized in that: the cloth positioning device is characterized in that a positioning device (4) for positioning cloth is arranged on the rack (1), the positioning device (4) comprises positioning seats (41), positioning rollers (42), a sliding block (43), a pressing roller (44), a spring (45) and a positioning assembly (46), the positioning seats (41) are arranged on the rack (1) at two groups at intervals along the cloth running direction and are respectively positioned on two sides of the blackboard (15), the positioning rollers (42) are rotatably arranged on the positioning seats (41) and are parallel to the axis of the driving roller (11), the sliding block (43) is arranged on the positioning seats (41) above the positioning rollers (42) in a sliding manner along the height direction of the positioning seats (41), the pressing roller (44) is rotatably arranged on the sliding block (43) and is parallel to the axis of the positioning rollers (42), two ends of the spring (45) are respectively connected with the sliding block (43) and the positioning seats (41), and the press roller (44) is matched with the positioning roller (42) to press the cloth under the action of a spring (45), and the positioning assembly (46) is arranged on the frame (1) and is matched with the driving roller (11) to position the cloth.

2. An unwinder as claimed in claim 1, wherein: locating component (46) include mount pad (461), dwang (462), live-rollers (463), location cylinder (464), mount pad (461) sets up on frame (1), dwang (462) rotate to set up on mount pad (461), live-rollers (463) rotate to set up on dwang (462) and be located drive roller (11) top and compress tightly the cloth with drive roller (11) cooperation, location cylinder (464) rotate to set up on frame (1) and the piston rod is connected with dwang (462) rotation.

3. An unwinder as claimed in claim 2, wherein: the rotating roller (463) and the driving roller (11) are sleeved with rubber layers (17).

4. An unwinder as claimed in claim 1, wherein: the positioning seat (41) is close to the fixed plate (13) on the frame (1) of work or material rest (2) one side at an interval, it is provided with two open width screw rods (14) and the cloth of contradicting on the cloth and passes through from between two open width screw rods (14) to rotate along fixed plate (13) direction of height interval on the lateral wall of the relative one side of fixed plate (13), set up the opposite screw thread of thread line direction and two open width screw rods (14) and be close to the opposite screw thread helix direction of one end each other on open width screw rod (14).

5. An unwinder as claimed in claim 1, wherein: be located set up on positioning seat (41) of positioning roller (42) top and supply slider (43) to follow positioning seat (41) direction of height to slide spout (411), positioning seat (41) top is slided and is worn to be equipped with and extends in spout (411) and pull rod (431) be connected with slider (43), the one end that slider (43) were kept away from in pull rod (431) is provided with tongs dish (432), spring (45) cover is established on pull rod (431).

6. An unwinder as claimed in claim 1, wherein: work or material rest (2) are including mounting bracket (21), backing roll (22), backup pad (23), mounting bracket (21) set up in frame (1), backing roll (22) rotate set up on mounting bracket (21) and horizontal interval be provided with two and support the yardage roll, backup pad (23) interval sets up on mounting bracket (21) and contradicts on the both ends of yardage roll.

7. An unwinder as claimed in claim 6, wherein: and the mounting rack (21) is provided with an adjusting device (3) for adjusting the distance between the two supporting plates (23).

8. An unwinder as claimed in claim 7, wherein: adjusting device (3) are including fixing base (31), fixed block (32), adjusting screw (33), slide rod (34), drive assembly (35), fixing base (31) set up on mounting bracket (21) and the interval is provided with two, just backup pad (23) are located between two fixing base (31), fixed block (32) set up on backup pad (23), adjusting screw (33) rotate the setting on the lateral wall of two fixing base (31) relative one side and set up two sections opposite screw threads of helix and respectively with fixed block (32) threaded connection, slide rod (34) set up on the lateral wall of two fixing base (31) relative one side and slide and wear to establish on fixed block (32), drive assembly (35) set up on fixing base (31) and drive adjusting screw (33) and rotate.

9. An unwinder as claimed in claim 8, wherein: the driving assembly (35) comprises a first gear (351), a driving motor (352) and a second gear (353), wherein the first gear (351) is arranged on the adjusting screw rod (33), the driving motor (352) is arranged on the fixed seat (31), and the second gear (353) is arranged on an output shaft of the driving motor (352) and meshed with the first gear (351).

Images