CN219135877U

CN219135877U - Anti-rollback device for preventing cloth rollback on cloth slitting machine

Info

Publication number: CN219135877U
Application number: CN202223337199.6U
Authority: CN
Inventors: 吴文锋
Original assignee: Quanzhou Xianfeng Precision Machinery Co ltd
Current assignee: Quanzhou Xianfeng Precision Machinery Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-06-06
Anticipated expiration: 2032-12-12

Abstract

The utility model provides an anti-rollback device for preventing cloth rollback on a cloth slitting machine, which has a simple structure and can be used for placing cloth rollback, and comprises a cloth slitting machine body and an anti-rollback device arranged on the cloth slitting machine body and used for preventing cloth from being rolled back by slitting, wherein the anti-rollback device comprises an anti-rollback roller which is rotationally arranged on the cloth slitting machine body, a top pressing roller which is propped against the anti-rollback roller and used for preventing cloth from being recovered is also arranged on the cloth slitting machine body, the top pressing roller and the anti-rollback roller resist when the cloth slitting device slit cloth, and a top pressing release device used for driving the top pressing roller to press the top of the cloth and release the cloth when the cloth is rolled is arranged on the cloth slitting machine body.

Description

Anti-rollback device for preventing cloth rollback on cloth slitting machine

Technical Field

The utility model relates to the technical field of textile machinery equipment, in particular to an anti-rollback device for preventing cloth rollback on a slitting machine.

Background

After the cloth is rolled, the existing cloth slitting machine needs a worker to push a cloth cutting device to cut the cloth; after the cutting is finished, the air expansion shaft of the coiled cloth is disassembled by a worker, a new air expansion shaft is assembled to roll the cloth, the existing cloth rolling machine is time-consuming and labor-consuming in operation, the operation is complex, the labor intensity of the worker is high, the production efficiency is influenced, the intelligent degree is low, and the production is not facilitated. Therefore, the applicant develops a six-axis cloth slitting machine capable of realizing automatic roll changing and automatic cutting and changing, and the cloth can be rewound after being slit during roll changing, so that the cloth is not beneficial to the cloth roller after being changed for cloth rolling. To solve this problem, the present utility model has been made.

Disclosure of Invention

Therefore, in order to solve the above problems, the utility model provides an anti-rollback device for preventing cloth rollback on a slitting machine, which has a simple structure and can be used for placing cloth rollback.

In order to achieve the above purpose, the technical scheme of the utility model is to provide an anti-rollback device for preventing cloth from rolling back on a cloth slitting machine, which comprises a cloth slitting machine body and an anti-rollback device arranged on the cloth slitting machine body and used for preventing cloth from rolling back after slitting, wherein the anti-rollback device comprises an anti-rollback roller which is rotationally arranged on the cloth slitting machine body, a top pressing roller which is propped against the anti-rollback roller and used for preventing cloth from being recovered is also arranged on the cloth slitting machine body, the top pressing roller and the anti-rollback roller resist when the cloth slitting device slit cloth, and a top pressing release device used for driving the top pressing roller to press cloth top and release cloth during cloth rolling is arranged on the cloth slitting machine body.

The further improvement is that: the pressing release device comprises: the device comprises an L-shaped top pressing rod, wherein the L-shaped top pressing rod is hinged to a cloth slitting machine body, one end of the L-shaped top pressing rod is arranged at one end of the top pressing rod, the other end of the L-shaped top pressing rod resists against a connecting plate when the connecting plate returns to slide into the cloth slitting machine body, so that the L-shaped top pressing rod is driven to turn over to enable the top pressing rod to be separated from an anti-rollback roller, and a second return device for turning over and returning the L-shaped top pressing rod and resisting the anti-rollback roller when the connecting plate is separated from the L-shaped top pressing rod is arranged between the L-shaped top pressing rod and the cloth slitting machine.

The further improvement is that: the second return device comprises a fixing rod, the fixing rod is fixedly arranged on the slitting machine body, a fixing sleeve is sleeved on the fixing rod, and a second elastic piece is arranged between the fixing sleeve and the L-shaped top pressing rod.

The further improvement is that: the anti-rewinding roller and the top pressing roller are arranged on the slitting machine body through a one-way bearing.

The further improvement is that: tension sensors for sensing cloth tension are arranged at two ends of the cloth slitting machine body, which are positioned at two ends of the anti-rewinding roller.

The further improvement is that: the L-shaped top pressing rod is provided with a fluent device for enabling the connecting plate to press the L-shaped top pressing rod in a propping mode to smoothly turn over.

The further improvement is that: the fluent device is as follows: the roller bearing is arranged on the L-shaped top pressing rod and is positioned at the end of the contact surface of the top pressing rod and the connecting plate, and the roller bearing can resist with the connecting plate.

The utility model has the advantages and beneficial effects that:

simple structure and convenient use. When cloth is cut, the top pressing roller on the L-shaped top pressing rod is turned over to return and is resisted with the anti-unreeling roller, so that cloth bypassing the anti-unreeling roller is tightly propped on the anti-unreeling roller, and cloth shrinkage is avoided. When the cloth is to be rolled, the L-shaped top pressing rod is turned over, so that the top pressing roller 24 is turned over to separate the cloth from the anti-rollback roller, and the cloth can be wound around the anti-rollback roller smoothly. Thereby realizing preventing cloth from backwinding and smoothly winding cloth.

Drawings

FIG. 1 is a schematic view of the overall structure of a slitting machine according to an embodiment of the utility model.

Fig. 2 is an enlarged schematic view of the structure of embodiment a of the present utility model.

Fig. 3 is a schematic structural diagram of a second limiting device according to an embodiment of the utility model.

Fig. 4 is a schematic structural diagram of a pressing device according to an embodiment of the utility model.

Fig. 5 is a schematic view of a partial structure of a rack according to an embodiment of the present utility model.

FIG. 6 is a schematic diagram illustrating an initial state of a buffer according to an embodiment of the utility model.

FIG. 7 is a schematic diagram illustrating a buffer termination status according to an embodiment of the utility model.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

As shown in fig. 1-7, an anti-backwinding device for preventing cloth from backwinding on a cloth slitting machine is arranged on a six-shaft cloth slitting machine with automatic cutting and changing rollers, and comprises a chassis with a digital speed changing function, a cloth slitting machine body 1 arranged on the chassis, and a PLC (not shown in the drawing) which is arranged on the cloth slitting machine body 1 and can communicate with the chassis, wherein the upper end of the cloth slitting machine body 1 is provided with two upper section rubber rollers 2, the upper section rubber rollers 2 are respectively sleeved with upper section rubber roller gears which are mutually meshed to drive the upper section rubber rollers to rotate, the cloth slitting machine body is provided with a rubber roller driving motor which is used for driving the upper section rubber roller gears to rotate, the upper rubber roller driving motor is in communication connection with the PLC, the middle section rubber rollers 3 are respectively arranged on the middle section rubber rollers 3 and are mutually meshed to drive the middle section rubber roller gears which are rotated, the middle section rubber roller driving motor is used for driving the rubber roller gears to rotate is arranged on the cloth slitting machine body 1 and is in communication connection with the PLC,

the cloth slitting machine body 1 is provided with a slitting knife 4 which is used for slitting a cylindrical cloth above an upper section rubber roller 2, the cloth slitting machine body 1 is provided with a cloth roller with rolling gears at two ends, the lower end of the cloth slitting machine body 1 is symmetrically provided with a connecting plate 5 in a sliding way and can slide out of the cloth slitting machine body 1 after the cloth roller finishes cloth rolling, the two ends of the cloth slitting machine body 1 are symmetrically provided with sliding rails for driving the connecting plate 5 to slide and symmetrically provided sliding blocks 32, the sliding blocks 32 are slidingly arranged on the sliding rails, the bottom of the connecting plate 5 is provided with a gear row 6, the cloth slitting machine body 1 is rotationally provided with a rotating shaft, the rotating shaft is provided with a gear 7, the gear 7 is meshed with the gear row 6, the other end of the rotating shaft is provided with a first synchronous wheel, a second synchronous wheel is arranged in the cloth slitting machine body 1, the cloth slitting machine body 1 is provided with a driving shaft 8 and the driving shaft 8 is connected with the second synchronous wheel, the cloth slitting machine body 1 is provided with a first servo motor for driving the driving shaft 8 to rotate, the first synchronous wheel 8 is controlled by a motor, the first servo motor drives the driving shaft 8 to drive the first synchronous wheel 8 to rotate, or the first synchronous wheel 5 drives the first synchronous wheel 5 to rotate, the first synchronous wheel 5 rotates, the first synchronous wheel 5 drives the connecting plate 5 to rotate, and the synchronous wheel 5 rotates, and the synchronous wheel 7 rotates, and the synchronous wheel 5 rotates, and the synchronous wheel 5 rotates,

one end of the connecting plate 5 is provided with a first cloth rolling gear 9 for driving the wind-up roller to rotate and automatically wind up cloth and a second cloth rolling gear 10 which can be meshed with the wind-up gear on the cloth rolling roller for transmission, the first cloth rolling gear 9 and the second cloth rolling gear 10 are respectively rotated and arranged on the connecting plate 5, the first cloth rolling gear 9 and the second cloth rolling gear 10 are meshed for transmission, the connecting plate 5 is provided with a second servo motor for driving the first cloth rolling gear 9 to rotate, wherein when the cloth is rolled, the second servo motor rotates to drive the first cloth rolling gear 9 to rotate, the first cloth rolling gear 9 drives the second cloth rolling gear 10 to rotate, the second cloth rolling gear 10 rotates to drive the cloth rolling gear on the cloth rolling roller to rotate, and then the cloth rolling roller is driven to rotate,

the other end of the connecting plate 5 is provided with a third cloth rolling gear 12 and a fourth cloth rolling gear 13 for rolling cloth on a roller to be rolled on a placing frame 14, the third cloth rolling gear 12 and the fourth cloth rolling gear 13 are rotationally arranged on the connecting plate 5, the third cloth rolling gear 12 and the fourth cloth rolling gear 13 are in meshed transmission, the connecting plate 5 is provided with a third servo motor for driving the third cloth rolling gear 12 to rotate, after cloth is rolled out, when the roller to be rolled is used for primary cloth rolling, the PLC controller controls the third servo motor to rotate to drive the third cloth rolling gear 12 to rotate so as to drive the fourth cloth rolling gear 13 to rotate, the fourth cloth rolling gear 13 and the gear on the roller to be rolled are in meshed transmission to drive the roller to be rolled to rotate, so as to realize pre-rolling cloth, the front end of the connecting plate 5, which is provided with a cloth cutting device for cutting the rolled cloth, the cloth cutting device comprises a cloth cutting frame crossing the cloth cutting machine body 1, the cloth cutting frame is arranged on a connecting plate 5, an avoidance opening 20 for the cloth cutting frame to pass through is formed in the cloth cutting machine, an automatic cloth cutting knife 21 is arranged on the cloth cutting frame in a sliding mode, a first cloth cutting knife synchronous wheel and a second cloth cutting knife synchronous wheel for driving the cloth cutting knife to slide are arranged on the cloth cutting frame, a knife rest sliding groove is formed in the cloth cutting frame, the first cloth cutting knife synchronous wheel and the second cloth cutting knife synchronous wheel are respectively arranged in the knife rest sliding groove in a rotating mode, a cutter cutting synchronous belt is wound between the first cloth cutting knife synchronous wheel and the second cloth cutting synchronous wheel, the bottom end of the automatic cloth cutting knife 21 is connected with the cutter cutting synchronous belt, a fourth servo motor for driving the first cloth cutting knife synchronous wheel to rotate is arranged on the cloth cutting frame, when the rolled cloth is cut, the fourth servo motor is controlled by a PLC controller to rotate, the first slitting knife is driven to synchronously rotate, the first slitting knife synchronous wheel drives the slitting knife synchronous belt and the second slitting knife synchronous wheel to rotate, the slitting knife synchronous belt drives the automatic slitting knife 21 to transversely slide on the slitting frame, and the automatic slitting knife 21 slit cloth, so that slitting is realized.

The concrete roll changing structure is characterized in that the cloth slitting machine body 1 is provided with a placing rack 14 which is matched with the connecting plate 5 and symmetrically provided with a rolling roll to be replaced, a limiting groove 30 for enabling the rolling roll to slide into the placing is formed in the joint of the first sliding rail 15 and the second sliding rail 16 and used for limiting the rolling roll to slide into the second sliding rail 16, the placing device is arranged on the connecting plate 5 after the cloth is rolled, the placing device comprises a first sliding rail 15 and a second sliding rail 16 for enabling the rolling roll to be replaced to be placed, the first sliding rail 15 is obliquely arranged on the placing rack 14 from top to bottom so that the rolling roll to be replaced automatically slides down, the second sliding rail 16 is arc-shaped and is arranged at the end part of the placing rack 14, the other end of the second sliding rail 16 passes through the placing frame 14, a first sliding plate 311 capable of limiting the winding roller from falling onto the connecting plate 5 is arranged at the opening of the second sliding rail 16, the first sliding plate 311 is slidably arranged in the placing frame 14, a limiting plate 31 which is opposite to the rotation axis of the winding roller is arranged on the first sliding plate 311, a first sliding groove 312 and an inclined groove are also arranged on the placing frame 14, the inclined groove is communicated with the first sliding groove 312, a first sliding pin 313 and a second sliding pin 314 are arranged on the first sliding plate 311, the first sliding pin 313 and the second sliding pin 314 are arranged in the first sliding groove 312, the first sliding pin 313 is positioned in front of the second sliding pin 314, a first return spring 36 which is used for enabling the first sliding plate 311 to slide out and return is arranged on the placing frame 14, a return groove 361 is arranged on the first sliding plate 311, a fixing pin 315 is arranged on the first sliding plate 311, and the fixing pin 315 is positioned in the return groove 361, the return groove 361 is gradually increased from right to left transversely, so that the fixed pin 315 can not block the second sliding pin 314 from sliding when the second sliding pin 314 slides in the inclined groove, one end of the first return spring 36 is connected with the inner wall of the return groove 361, the other end of the first return spring 36 is connected with the fixed pin 315, a pushing plate for automatically pushing the winding roller into the second track from the first track is arranged on the connecting plate 5, the pushing plate is arranged at the end part of the connecting plate 5 and is positioned at the rear of the connecting plate 5, and a pushing rod 19 which can resist the winding roller from the first slide rail 15 to the second slide rail 16 is arranged at the height position of the winding roller.

According to the principle of a roll changing, after cloth is wound and formed, one end of a connecting plate 5 slides out of a slitting machine body 1, in the sliding process of the connecting plate 5, as a winding gear on a first cloth winding roller after winding the cloth is meshed with a second gear, a limiting plate 31 is pushed to slide, the limiting plate drives a first sliding plate 311 to slide and slide into an inclined groove from a first sliding groove 312, so that the limiting plate 31 can move upwards along the direction of the inclined groove, at the moment, a fixed pin 315 stretches a first return spring 36, then the first cloth winding roller is separated from a second track 16, at the moment, the second return spring 36 drives the limiting plate 31 to return, the first cloth winding roller falls out of the second track and slides out along with the connecting plate 5, then a push rod 19 pushes the second cloth winding roller to be wound in the first track 15 into the second sliding rail 16 from inside the limiting groove 30, and falls to the bottom end of the second sliding rail 16 at the moment, the limiting plate 31 is prevented from falling down, the connecting plate 5 continues to slide, at the moment, a fixed pin 315 stretches a first return spring 36, then the first cloth winding roller is separated from the second track 16, at least one second cloth winding roller is driven by a second return spring 36 drives a second cloth winding roller to rotate around the second winding roller, at least one small winding roller is driven by a second servo motor, at least one winding roller is driven by a second cloth winding roller to be meshed with a second servo motor, then a small winding roller is automatically, a small winding roller is driven to be wound, at least one of the second cloth winding roller is automatically, and then is wound, and a small winding roller is automatically is driven to be meshed with a small winding roller, and then is wound, and then to a small winding roller is wound, and rolled, the automatic roll changing action is completed.

Referring to fig. 5-7, in order to buffer the impact force of the second wind-up roller falling on the second track 16, reduce the generated noise and damage to the second wind-up roller and the rack 14, the connecting plate 5 is further provided with a buffer device for buffering the second wind-up roller falling from the first track 15 to the second track 16, and reducing the damage of the second wind-up roller due to the impact of the second wind-up roller on the rack 14.

Specifically, the buffer device comprises a supporting rod 192, one end of the supporting rod 192 is hinged to a pushing plate 191, the other end of the supporting rod 192 is located at the second track 16 of the placing rack 14 and used for bearing the second winding roller to slide down, a damping spring 194 used for preventing the second winding roller from falling down is further arranged on the pushing plate 191, a damping rod 192 extends downwards on the supporting rod 192, one end of the damping spring 194 is connected with the pushing plate 191, and the other end of the damping spring 194 is connected with the damping rod 192. When the cloth roller to be rolled slides off the second sliding rail, the cloth roller to be rolled is pressed on the supporting rod 192, the supporting rod 192 presses the damping spring 194 downwards, and the damping spring 194 buffers the impact force, so that the second rolling roller cannot directly fall on the placing frame 14 in a heavy manner, noise is reduced, and the second rolling roller and the placing frame 14 are prevented from deforming.

In order to enable the second winding roller to wind up the cloth better, the second winding roller can be better attached to the cloth when the cloth is wound up, the support rod 192 is further provided with an attaching rod 196 for enabling the cloth to be better attached to the cloth roller to roll up the cloth, the attaching rod 196 is rotationally arranged at the end part of the support rod 192, and the attaching rod 196 resists the cloth roller after the cloth roller falls down.

Preferably, the attaching rod 196 is a stainless steel tube.

In order to enable the second winding roller to press the supporting rod 192 better, the supporting rod 192 is prevented from interfering with the second winding roller to roll cloth, so that the second winding roller is stabilized, and an avoidance arc-shaped groove is formed in the contact surface of the supporting rod 192 and the roller to be rolled.

In order to place the supporting rod 192 in a returning state, the supporting rod 192 is excessively swung up, so that the supporting rod 192 can be always positioned at an optimal lower damping position, a limiting pin 195 is arranged on the pushing plate 191 above the supporting rod 192, and the limiting pin 195 resists against the supporting rod 192.

In order to prevent the connecting plate 5 from sliding out of the cloth slitting machine, after the winding roller is separated from the second sliding rail 16, the winding roller falls off from the second winding gear 10, and a pressing device for positioning the winding roller on the connecting plate 5 to enable the winding roller to be stably placed on the second winding gear 10 is arranged on the connecting plate 5.

Specifically, the jacking device comprises a jacking plate 11, one end of the jacking plate 11 is arranged on the connecting plate 5, the other end of the jacking plate 11 extends upwards to form the connecting plate 5, the jacking plate 11 is opposite to the shaft of the winding roller, a connecting pin 38 for jacking the jacking plate 11 and returning is arranged between the connecting plate 5 and the jacking plate 11, the connecting pin 38 is arranged on the connecting plate 5, a jacking groove 37 is formed in the jacking plate 11 from top to bottom, the connecting pin 38 is arranged in the jacking groove 37, and a first spring 39 is arranged between the connecting plate 5 and the jacking plate 11.

When the connecting plate 5 slides out, the cloth roller is separated from the second sliding rail 16 and falls on the second gear, and at the moment, the top rebound spring returns to drive the top pressing plate 11 to return, so that the top pressing plate 11 and the cloth roller resist against each other in the axial direction, the cloth roller is limited on the second rolling gear 10, the phenomenon that the cloth roller slides off the second rolling gear 10 due to too heavy weight is avoided, and the cloth roller can be stably conveyed to the outside of the slitting machine body 1.

In order to prevent the cloth from being rewound after being split, the cloth is rolled up in the later stage, an anti-rewinding device for preventing the cloth from being rewound after being split is arranged behind the connecting plate 5 on the splitting machine body 1.

Specifically, the anti-backwinding device comprises an anti-backwinding roller 23, the anti-backwinding roller 23 is rotationally arranged on the slitting machine body 1, a top pressing roller 24 which is propped against the anti-backwinding roller 23 and used for avoiding cloth recovery is further arranged on the slitting machine body 1, the top pressing roller 24 is propped against the anti-backwinding roller 23 when the slitting device slitting cloth, an L-shaped top pressing rod 25 which is used for driving the top pressing roller 24 to prop down the cloth and release the cloth when the cloth is rolled is arranged on the slitting machine body 1, the L-shaped top pressing rod 25 is hinged on the slitting machine body 1, one end of the top pressing rod 24 is arranged at one end of the L-shaped top pressing rod 25, the other end of the L-shaped top pressing rod 25 is propped against the connecting plate 5 when the connecting plate 5 returns to slide into the slitting machine body 1, so that the top pressing roller 24 is overturned against the anti-backwinding roller 23, and a second device which is used for overturning the L-shaped top pressing rod 25 and resisting the anti-backwinding roller 23 when the connecting plate 5 is separated from the L-shaped top pressing rod 25 is arranged between the L-shaped top pressing rod 25 and the slitting machine.

Preferably, the second return device comprises a fixing rod 28, the fixing rod 28 is fixedly arranged on the slitting machine body 1, a fixing sleeve is sleeved on the fixing rod 28, and a second spring 26 is arranged between the fixing sleeve and the L-shaped top pressing rod 25.

Working principle: when the connecting plate 5 slides to the outside of the cloth slitting machine, the second spring 26 elastically returns, the L-shaped top pressing rod 25 overturns and returns under the action of the second spring 26, and at the moment, the top pressing roller 24 on the L-shaped top pressing rod 25 overturns and returns to be opposite to the anti-rewinding roller 23, so that cloth bypassing the anti-rewinding roller 23 is tightly propped against the anti-rewinding roller 23, and then the cloth is split, and when the cloth is split, the cloth is tightly propped against the end of the anti-rewinding roller 23, so that the shrinkage of the cloth is avoided. When the connecting plate 5 returns, the connecting plate 5 resists against the L-shaped top pressing rod 25 and drives the top pressing rod to turn over, so that the top pressing roller 24 turns over to be separated from the anti-rewinding roller 23, and the second spring 26 is stretched. Then, when the cloth is reeled, the cloth can be smoothly reeled from the anti-unreeling roller 23.

In order to facilitate pushing of the L-shaped pushing rod 25, a roller bearing 27 which resists the connecting plate 5 is arranged on the contact surface of the L-shaped pushing rod 25 and the connecting plate 5.

In order to further avoid shrinkage and return of the cloth on the anti-backwinding roller 23, the anti-backwinding roller 23 and the top pressing roller 24 are arranged on the slitting machine body 1 through a one-way bearing.

In order to enable the cloth to be rolled up with better tension, tension sensors 29 for sensing the tension of the cloth are arranged at two ends of the anti-back-rolling roller 23 of the cloth slitting machine body 1.

For better rolling, make cloth can laminate the wind-up roll more and roll up, still include pinch roller 33, sliding block 32, pinch roller 33 locates on rack 14, pinch roller 33 offsets the system with the wind-up roll and makes pinch roller 33 press from both sides tightly when rolling up the wind-up roll and let the wind-up roll rolling, pinch roller 33 locates on rack 14 so that pinch roller 33 can slide along with cloth diameter increase on the wind-up roll and give the rolling space of dodging on rack 14, pinch roller 33 rotates and locates on sliding block 32, rack 14 is located first slide rail 15 department and is equipped with first slider 17, the other end that rack 14 is located first slide rail 15 is equipped with second slider 18 and second slider 18 extends to rack 14 lower extreme, sliding block 32 locates between first slider 17 and the second slider 18, be equipped with on the rack 14 and be used for preventing that sliding block 32 breaks away from the stop lever 34 of second slider 18.

In order to enable better cloth passing, the middle of the connecting plate 5 is provided with a transition roller 22.

In order to enable the wind-up roller to be attached to the connecting plate 5 so as to better support the wind-up roller, a bearing is arranged on the shaft of the wind-up roller.

While the basic principles and main features of the present utility model and advantages thereof have been shown and described, it will be understood by those skilled in the art that the present utility model is not limited by the foregoing embodiments, which are described merely by way of illustration of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims and their equivalents.

Claims

1. The utility model provides a prevent rollback device for cutting open cloth and prevent cloth rollback on cloth machine, includes cutting open cloth machine body, sets up and is used for preventing cloth to cut open the backrush device of preventing of back rollback on cutting open cloth machine body, its characterized in that: the anti-unreeling device comprises an anti-unreeling roller, the anti-unreeling roller is rotationally arranged on the cloth slitting machine body, a top pressing roller which is propped against the anti-unreeling roller and used for avoiding cloth recycling is further arranged on the cloth slitting machine body, the top pressing roller and the anti-unreeling roller resist when the cloth slitting device split cloth, and a top pressing release device used for driving the top pressing roller to push the top of the cloth and loosening the cloth when the cloth is rolled is arranged on the cloth slitting machine body.

2. An anti-rollback apparatus for use in a slitting machine for preventing rollback of cloth as claimed in claim 1 wherein: the pressing release device comprises: the device comprises an L-shaped top pressing rod, wherein the L-shaped top pressing rod is hinged to a cloth slitting machine body, one end of the L-shaped top pressing rod is arranged at one end of the top pressing rod, the other end of the L-shaped top pressing rod resists against a connecting plate when the connecting plate returns to slide into the cloth slitting machine body, so that the L-shaped top pressing rod is driven to turn over to enable the top pressing rod to be separated from an anti-rollback roller, and a second return device for turning over and returning the L-shaped top pressing rod and resisting the anti-rollback roller when the connecting plate is separated from the L-shaped top pressing rod is arranged between the L-shaped top pressing rod and the cloth slitting machine.

3. An anti-rollback apparatus for use in a slitting machine for preventing rollback of cloth as claimed in claim 2 wherein: the second return device comprises a fixing rod, the fixing rod is fixedly arranged on the slitting machine body, a fixing sleeve is sleeved on the fixing rod, and a second elastic piece is arranged between the fixing sleeve and the L-shaped top pressing rod.

4. An anti-rollback apparatus for use in a slitting machine for preventing rollback of cloth as claimed in claim 1 wherein: the anti-rewinding roller and the top pressing roller are arranged on the slitting machine body through a one-way bearing.

5. An anti-rollback apparatus for use in a slitting machine for preventing rollback of cloth as claimed in claim 1 wherein: tension sensors for sensing cloth tension are arranged at two ends of the cloth slitting machine body, which are positioned at two ends of the anti-rewinding roller.

6. An anti-rollback apparatus for use in a slitting machine for preventing rollback of cloth as claimed in claim 2 wherein: the L-shaped top pressing rod is provided with a fluent device for enabling the connecting plate to press the L-shaped top pressing rod in a propping mode to smoothly turn over.

7. An anti-rollback apparatus for a cloth slitting machine as claimed in claim 6 wherein: the fluent device is as follows: the roller bearing is arranged on the L-shaped top pressing rod and is positioned at the end of the contact surface of the top pressing rod and the connecting plate, and the roller bearing can resist with the connecting plate.