CN112404750A

CN112404750A - Cloth laser cutting machine

Info

Publication number: CN112404750A
Application number: CN202011272007.0A
Authority: CN
Inventors: 孙兴广; 王宝
Original assignee: Shaoxing Keqiao Lanmei Digital Textile Technology Co ltd
Current assignee: Shaoxing Keqiao Lanmei Digital Textile Technology Co ltd
Priority date: 2020-11-14
Filing date: 2020-11-14
Publication date: 2021-02-26
Anticipated expiration: 2040-11-14
Also published as: CN112404750B

Abstract

The application relates to the technical field of cloth side cut equipment, in particular to cloth laser cutting machine, this cloth laser cutting machine includes laser cutting device, still includes: the cloth spreading device is used for spreading cloth, is arranged at the feed end of the laser cutting device, and comprises a spreading rack, a lifting roller arranged at the top end of the spreading rack and a primary spreading roller group positioned below the lifting roller, wherein the primary spreading roller group at least comprises two spreading rollers, and double-spiral convex ribs are arranged on the outer surface of each spreading roller; the feeding device is positioned between the scutching device and the laser cutting device, and comprises a driving roller, a driven roller and a swinging rod, wherein the driving roller and the driven roller are mutually abutted, the swinging rod is used for controlling the rotating speed of the driving roller through a swinging angle, continuous cloth conveying can be realized without stopping, the production efficiency is effectively improved, and the production cost is reduced.

Description

Cloth laser cutting machine

Technical Field

The application relates to the technical field of cloth side cut equipment, in particular to a cloth laser cutting machine.

Background

The cloth edge trimmer is used for shearing or cutting the side edge of one side and the side edges of two sides of cloth, and the like, is widely applied to the field of spinning, and enables the edge of the cloth to be flat and attractive through edge trimming or achieves the purpose of preventing the edge from curling and rolling.

There have been apparatuses for trimming edges using laser cutting machines, which have higher aesthetic and efficiency of trimming. The related laser cutting machine is currently used for cutting cloth in a coil form, but in most cases, the processing cost is increased to a great extent only by cutting the coil, for example, for a part of cloth needing pretreatment, the cloth needs to be rolled again after pretreatment to be cut.

And because the feeding form of the coiled material is adopted, the machine needs to be stopped for changing the coiled material after the cloth on the coiled material is used up, the waste on time cost is also caused, in addition, the coiled material is heavy, and the feeding can be completed by a plurality of people, so at least two workers are usually required to attend and operate, the labor cost is also high, and the production cost of the existing laser cutting machine is still high.

Disclosure of Invention

In order to reduce production cost, the application provides a cloth laser cutting machine.

The application provides a cloth laser cutting machine adopts following technical scheme:

a cloth laser cutting machine comprises a laser cutting device and further comprises:

the cloth spreading device is used for spreading cloth, is arranged at the feed end of the laser cutting device, and comprises a spreading rack, a lifting roller arranged at the top end of the spreading rack and a primary spreading roller group positioned below the lifting roller, wherein the primary spreading roller group at least comprises two spreading rollers, and double-spiral convex ribs are arranged on the outer surface of each spreading roller;

and the feeding device is positioned between the scutching device and the laser cutting device and comprises a driving roller, a driven roller and a swinging rod, wherein the driving roller and the driven roller are mutually abutted, and the swinging rod is used for controlling the rotating speed of the driving roller through a swinging angle.

Through adopting above-mentioned technical scheme, scutching device's setting can scutching and rectifying the cloth that scatters, and rethread material feeding unit carries and gets into cutting among the laser cutting device, and wherein, the butt joint can be accomplished very easily to the cloth that scatters, and consequently, the cloth can realize continuous transport, and just a workman can realize connecting. The feeding device is used for providing enough driving force to enable the cloth to pass through the scutching device, the laser cutting device can also provide the driving force, and the two driving parts of the feeding device and the laser cutting device are difficult to be consistent, so that the rotating speed of the driving roller is controlled through the oscillating rod, namely when the driving speed of the laser cutting device is high, the cloth can lift the oscillating rod, and the driving roller can be accelerated; when the driving speed of the laser cutting device is low, the cloth can droop due to the gravity of the oscillating rod, and the rotating speed of the driving roller can be reduced.

Optionally: one end of the oscillating rod is provided with a rotary rheostat which is electrically connected with a driving motor of the driving roller.

Through adopting above-mentioned technical scheme, through the setting of rotation type rheostat, change into the change of resistance with the rotation of swinging arms, and then realize the rotational speed control to the drive roll.

Optionally: the scutching device further comprises a primary correcting mechanism, the primary correcting mechanism is located below the primary scutching roller set and comprises an infrared probe and a correcting roller set controlled by the infrared probe to swing, the correcting roller set comprises two parallel correcting rollers, two ends of the correcting roller set are respectively connected with swing arms, the two swing arms are arranged in parallel, and two detection points for respectively controlling the swing arms to swing left and right are arranged on the infrared probe.

By adopting the technical scheme, when one of the two detection points detects that the cloth and the other one does not detect the cloth, the deviation is not generated, otherwise, the two swing arms are controlled to swing, the deviation rectifying roller set is controlled to swing to adjust the cloth, and the deviation rectifying work is realized.

Optionally: the scutching device also comprises a primary correcting mechanism, the primary correcting mechanism comprises an infrared probe and two correcting components controlled by the infrared probe, and the two correcting components are arranged at two ends of the scutching roller; the two ends of the scutching roller are provided with hollow optical axis sections, a plurality of telescopic holes are spirally distributed on the optical axis sections along the thread lines, and the deviation rectifying assembly comprises a telescopic rod inserted into the telescopic holes and a driving piece used for driving the telescopic rod to extend out or retract on the optical axis sections.

By adopting the technical scheme, the device is mainly used for the cloth with large width, and the width of the device is larger than the length between the two optical axis sections of the scutching roller. Wherein, when the skew takes place for the cloth, lie in the driving piece of keeping away from skew direction one end through the drive, control the telescopic link and stretch out from the concertina hole on the optical axis section, form the protruding structure of spiral, strengthen the produced axial tension of this end, the telescopic link can restrict the continuation skew of cloth at once when stretching out and contacting with the cloth simultaneously to have very good effect of rectifying.

Optionally: the deviation rectifying assembly also comprises a plurality of mounting seats arranged along the axial lead direction of the scutching roller, and the telescopic rods are mounted on the mounting seats; the driving piece comprises a control cylinder and a connecting rod, wherein the piston rod is provided with a connector, and the two ends of the connecting rod are respectively hinged with the connector and the mounting seat.

Through adopting above-mentioned technical scheme, when the flexible action takes place for piston rod on the control cylinder, can drive the connecting rod and take place the swing to drive mount pad and telescopic link and radially take place to remove along the expander roll, thereby realize the telescopic link and stretch out and retract the operation on the flexible hole.

Optionally: the deviation rectifying assembly also comprises a plurality of mounting seats arranged along the axial lead direction of the scutching roller, and the telescopic rods are mounted on the mounting seats; the driving piece is the control cylinder who is provided with the building block on the piston rod, and the cover is equipped with the reset spring of both ends respectively with mount pad and scutching roller inner wall butt on the telescopic link, and the one end terminal surface and the building block lateral wall laminating of telescopic link are kept away from to the mount pad.

Through adopting above-mentioned technical scheme, when the flexible action takes place for piston rod on the control cylinder, because mount pad and building block keep the laminating state under the reset spring effect, the mount pad can only follow scutching roller radial movement under the telescopic link is injectd, consequently, the building block is when doing along scutching roller axial displacement, relative movement can take place between mount pad and building block, and the inclined plane of building block can drive the mount pad and be radial movement, realizes the flexible action control of telescopic link.

Optionally: the deviation rectifying assembly also comprises a plurality of mounting seats arranged along the axial lead direction of the scutching roller, and the telescopic rods are mounted on the mounting seats; the driving piece is a control cylinder provided with a building block on a piston rod, one end face, away from the telescopic rod, of the mounting seat is attached to the outer side wall of the building block, and the building block is connected with the mounting seat in a magnetic absorption mode.

Through adopting above-mentioned technical scheme, when the flexible action takes place for piston rod on the control cylinder, because the effect of magnetism is inhaled down mount pad and building block and is kept the laminating state, the mount pad can only be along the open width roller radial movement under the telescopic link is injectd, consequently, the building block is when doing along open width roller axial displacement, relative movement can take place between mount pad and building block, and the inclined plane of building block can drive the mount pad and be radial movement, realizes the flexible action control of telescopic link.

Optionally: the deviation rectifying assembly also comprises a plurality of mounting seats arranged along the axial lead direction of the scutching roller, and the telescopic rods are mounted on the mounting seats; the driving piece comprises an air inlet pipe extending into the optical shaft section and an inflatable sleeve sleeved outside the air inlet pipe, an air outlet hole is formed in the part, located in the inflatable sleeve, of the air inlet pipe, and the mounting seat is connected to the outer wall of the inflatable sleeve.

Through adopting above-mentioned technical scheme, when ventilating in the inlet tube, gaseous from the venthole enter into the physiosis cover, continue to aerify when atmospheric pressure reaches a definite value and make the physiosis cover take place to expand to drive the connecting seat and take the telescopic link to take place to follow the radial movement of expander roll together, realize the flexible action control of telescopic link.

Optionally: the deviation rectifying assembly also comprises a plurality of mounting seats arranged along the axial lead direction of the scutching roller, and the telescopic rods are mounted on the mounting seats; the driving piece comprises an air inlet pipe extending into the optical shaft section and an air expansion sleeve sleeved outside the air inlet pipe, an air outlet hole is formed in the part, located in the air expansion sleeve, of the air inlet pipe, and a reset spring is sleeved on the telescopic rod, wherein two ends of the reset spring are respectively abutted to the inner wall of the mounting seat and the inner wall of the scutching roller.

Optionally: a deviation correcting device is arranged between the feeding device and the laser cutting device and comprises a secondary open width roller set and a secondary deviation correcting roller set, the secondary open width roller set is identical to the primary open width roller set in structure, and the secondary deviation correcting roller set is identical to the primary deviation correcting roller set in structure.

By adopting the technical scheme, the scutching and the deviation correction are carried out again before the cutting device is sent into the laser cutting device, so that the cutting precision is improved.

Drawings

FIG. 1 is a schematic structural diagram of the first embodiment;

FIG. 2 is a schematic structural diagram of a scutching device in the first embodiment;

FIG. 3 is a schematic structural view of a feeding device according to a first embodiment;

FIG. 4 is a schematic structural view of the second embodiment;

FIG. 5 is a schematic structural view of a tenter device in the second embodiment;

FIG. 6 is a schematic structural view of a scutching roll and a deviation correcting member in the second embodiment;

FIG. 7 is a schematic structural diagram of a deviation correcting assembly according to the second embodiment;

FIG. 8 is a schematic structural diagram of a deviation correcting assembly according to a third embodiment;

FIG. 9 is a schematic structural diagram of a deviation rectifying assembly according to the fifth embodiment.

In the figure, 10, cloth; 100. an scutching device; 110. an scutching frame; 120. a lift roller; 130. an opening roller set; 131. an opening roller; 1311. a double threaded rib; 1312. a light axis segment; 1313. a telescopic hole; 140. a primary deviation correcting mechanism; 141. an infrared probe; 142. a correction roller set; 1421. a deviation rectifying roller; 1422. swinging arms; 200. a feeding device; 210. a drive roll; 211. a drive motor; 220. a driven roller; 221. a lifting pneumatic cylinder; 230. a swing lever; 231. a rotary varistor; 300. a deviation correcting device; 310. a secondary expander roll set; 320. a secondary correction roller set; 400. a laser cutting device; 500. a material receiving device; 600. a deviation rectifying component; 610. a telescopic rod; 620. a mounting seat; 630. a drive member; 631. controlling the cylinder; 6311. a connector; 6312. building blocks; 632. a connecting rod; 633. a return spring; 634. an air inlet pipe; 6341. an air outlet; 6342. a baffle plate; 635. and (5) inflating the sleeve.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

In the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

Example 1: a cloth laser cutting machine comprises an opening device 100, a feeding device 200, a deviation correcting device 300, a laser cutting device 400 and a material receiving device 500 which are sequentially arranged along the conveying direction of cloth 10, as shown in figure 1.

As shown in fig. 2, the scutching device 100 includes an initial scutching roller set 130, a lifting roller 120 and an initial deviation correcting mechanism 140, the lifting roller 120 is disposed at the top of the scutching frame 110, the scutching roller set 130 includes two or more scutching rollers 131, in this example, three scutching rollers 131 are taken as an example, the three scutching rollers 131 are disposed in parallel, and two scutching rollers 131 are located on the same vertical plane, and the other scutching roller 131 is located on a parallel vertical plane, so as to form a triangular structure. The number of the expander rollers 131 is not limited to three, and the expander rollers can be adjusted according to actual requirements and expanding conditions. The expanding roller 131 is provided with a double screw rib 1311, and the double screw rib 1311 is symmetrically spirally formed at the middle position of the expanding roller 131 to both sides.

The initial deviation correcting mechanism 140 is located below the scutching roller set 130, and comprises an infrared probe 141 and a deviation correcting roller set 142, the deviation correcting roller set 142 comprises two parallel deviation correcting rollers 1421, the plane where the deviation correcting roller set 142 is located is parallel to the conveying direction of the cloth 10, two ends of the deviation correcting roller set 142 are respectively connected with swing arms 1422 in a rotating mode, the other ends of the swing arms 1422 are rotatably connected with the scutching frame 110, the distance between the ends, far away from the deviation correcting roller set 142, of the two swing arms 1422 is smaller than the length of the deviation correcting rollers 1421, so that a structure that extension lines of the two swing arms 1422 are in crossed arrangement is formed, and one of the swing arms 1422 is controlled by a.

The infrared probe 141 is provided with two detection points, the two detection points are mounted on two limit rods below the deviation correction roller set 142, and the swing of the swing arm 1422 is controlled by the infrared probe 141. When one of the two detection points detects the cloth 10 and the other does not detect the cloth 10, it indicates that there is no deviation, otherwise, the two swing arms 1422 are controlled to swing.

As shown in fig. 3, the feeding device 200 is fixed on the scutching frame 110, and includes a driving roller 210, a driven roller 220 and a swing rod 230, the driving roller 210 and the driven roller 220 are both mounted on the scutching frame 110, the driving roller 210 is controlled by a driving motor 211 to rotate, the driven roller 220 is located above the driving roller 210, and the driven roller 220 can be lifted and lowered along a vertical direction by two lifting pneumatic cylinders 221 to be abutted against the driving roller 210.

Both ends of the swing lever 230 are rotatably connected to the scutching frame 110, a rotary varistor 231 is mounted on the scutching frame 110, and one end of the swing lever 230 is connected to the rotary varistor 231. The rotary rheostat 231 is electrically connected with the driving motor 211, and the resistance value of the rotary rheostat 231 is adjusted through the rotation angle of the swing rod 230, so that the rotation speed of the driving motor 211 is controlled.

As shown in fig. 1, the deviation correcting device 300 includes a secondary opening roller set 130 and a secondary deviation correcting roller set 320, the secondary opening roller set 130 has the same structure as the primary opening roller set 130, and the difference between the secondary opening roller set 130 and the primary opening roller set 130 is that the primary opening roller set 130 is arranged in the vertical direction, and the secondary opening roller set 130 is arranged in the horizontal direction; the secondary deviation correcting roller set 320 and the primary deviation correcting roller set 142 have the same structure, and the difference between the secondary deviation correcting roller set 320 and the primary deviation correcting roller set 142 is that the primary deviation correcting roller set 142 is arranged along the vertical direction, and the secondary deviation correcting roller set 320 is arranged along the horizontal direction.

The material receiving device 500 may be a winding type or a swing type, for example, the swing type in this embodiment.

The working principle is as follows:

the cloth 10 is fed into the scutching device 100, scutched by the scutching roller set 130, primarily corrected by the primary correction mechanism 140, conveyed by the feeding device 200, and fed into the correction device 300 for secondary scutching and correction, so that the cloth 10 is flat and has high accuracy. During the transportation of the cloth 10, the swing lever 230 presses on the cloth 10, and when the transportation speed of the feeding device 200 is too fast, the swing lever 230 swings downwards to control the deceleration of the driving roller 210, and conversely, the acceleration of the driving roller 210 is controlled.

The cloth 10 adjusted by the deviation correcting device 300 enters a laser cutting machine for cutting, and is sent into the material receiving device 500 after being cut, and the cloth 10 is stacked in an upper layer and a lower layer through the material receiving device 500.

Example 2: as shown in fig. 4 and 5, the difference from embodiment 1 is that the scutching device 100 includes a lifting roller 120, an initial scutching roller set 130, and an initial deviation correcting mechanism 140, the arrangement of the lifting roller 120 is the same as that of embodiment 1, referring to fig. 6, a hollow optical axis section 1312 is provided at both ends of a deviation correcting roller 1421 in this embodiment, the optical axis section 1312 is located at both sides of a double-threaded rib 1311, and a plurality of telescopic holes 1313 are spirally distributed along a thread on the optical axis section 1312.

Referring to fig. 5 and 6, the primary correction mechanism 140 includes an infrared probe 141 and a correction assembly 600, and the arrangement of the infrared probe 141 is the same as that of embodiment 1. The two deviation rectifying assemblies 600 are respectively disposed at two ends of the deviation rectifying roller 1421, each deviation rectifying assembly 600 includes a telescopic rod 610, a mounting seat 620 and a driving member 630, the number of the telescopic rods 610 is the same as that of the telescopic holes 1313, and the telescopic rods 610 are inserted into the telescopic holes 1313 one by one in the optical axis segment 1312.

The plurality of mounting seats 620 are provided, and the plurality of mounting seats 620 are distributed around the axial line of the tenter roller 131. The mounting seat 620 is rectangular and is arranged along the axial lead direction of the scutching roller 131, and one end of the telescopic rod 610 far away from the telescopic hole 1313 is fixedly mounted on the mounting seat 620.

Referring to fig. 6 and 7, the driver 630 includes a control cylinder 631 and a plurality of connecting rods 632, the number of the connecting rods 632 being the same as the number of the mounting seats 620. The end of the piston rod of the control cylinder 631 is provided with a connector 6311, and two ends of the connecting rod 632 are respectively hinged to the connector 6311 and the mounting seat 620, wherein the telescopic rod 610 is always inserted into the telescopic hole 1313 during the reciprocating movement of the connector 6311.

Example 3: as shown in fig. 8, the difference from embodiment 2 is that in this embodiment, the driving member 630 is a control cylinder 631 having a piston rod provided with a block 6312, a return spring 633 is sleeved on the telescopic rod 610, two ends of the return spring 633 respectively abut against the mounting seat 620 and the inner wall of the scutching roller 131, the thickness of the mounting seat 620 is gradually increased along the axial line direction of the scutching roller 131, and the thickness of the mounting seat 620 at the end far from the driving cylinder is increased.

Example 4: the difference from embodiment 3 is that the return spring 633 is not provided in this embodiment, but one of the block 6312 and the mounting seat 620 is made of a magnetically attractive material having magnetism, and the other is made of a magnetic material that can be attracted by the magnetically attractive material, so that the interference between the mounting seat 620 and the block 6312 is maintained by magnetic force.

Example 5: as shown in fig. 9, the difference from embodiment 2 is that the driving member 630 includes an air inlet pipe 634 and an air inflation sleeve 635, a baffle 6342 is disposed at one end of the air inlet pipe 634, the air inflation sleeve 635 is located in the optical axis segment 1312 and is sleeved outside the air inlet pipe 634, and one end of the air inflation sleeve 635 is connected to the baffle 6342. The part of the air inlet pipe 634 located in the inflatable sleeve 635 is provided with a plurality of air outlet holes 6341, the mounting seat 620 is connected to the outer wall of the inflatable sleeve 635, wherein the inflatable sleeve 635 is made of rubber.

Example 6: the difference from embodiment 5 is that a return spring 633 is sleeved on the expansion link 610, and both ends of the return spring 633 are respectively abutted against the inner walls of the mounting seat 620 and the expanding roller 131, so that the mounting seat 620 is kept abutted against the inflatable sleeve 635.

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

1. The utility model provides a cloth laser cutting machine, includes laser cutting device (400), characterized by still includes:

the cloth spreading device (100) is used for spreading cloth (10), is arranged at the feeding end of the laser cutting device (400), and comprises a spreading rack (110), a lifting roller (120) arranged at the top end of the spreading rack (110), and a primary spreading roller set (130) positioned below the lifting roller (120), wherein the primary spreading roller set (130) at least comprises two spreading rollers (131), and double-spiral convex ribs are arranged on the outer surface of each spreading roller (131);

the feeding device (200) is positioned between the scutching device (100) and the laser cutting device (400) and comprises a driving roller (210), a driven roller (220) and a swinging rod (230), wherein the driving roller (210) and the driven roller are mutually abutted, and the swinging rod is used for controlling the rotating speed of the driving roller (210) through a swinging angle.

2. The laser cutting machine for cloth (10) according to claim 1, characterized in that: a rotary rheostat (231) is arranged at one end of the swinging rod (230), and the rotary rheostat (231) is electrically connected with a driving motor (211) of the driving roller (210).

3. The laser cutting machine for cloth (10) according to claim 1, characterized in that: the scutching device (100) further comprises a primary rectifying mechanism (140), the primary rectifying mechanism (140) is located below the primary scutching roller set (130), the primary rectifying mechanism (140) comprises an infrared probe (141) and a rectifying roller set (142) controlled by the infrared probe (141) to swing, the rectifying roller set (142) comprises two parallel rectifying rollers (1421), two ends of the rectifying roller set (142) are respectively connected with swing arms (1422), the two swing arms (1422) are arranged in parallel, and the infrared probe (141) is provided with two detection points for respectively controlling the swing arms (1422) to swing left and right.

4. The laser cutting machine for cloth (10) according to claim 1, characterized in that: the scutching device (100) further comprises a primary correcting mechanism (140), the primary correcting mechanism (140) comprises an infrared probe (141) and two correcting components (600) controlled by the infrared probe (141), and the two correcting components (600) are arranged at two ends of the correcting roller (1421); the two ends of the deviation rectifying roller (1421) are provided with hollow optical axis sections (1312), a plurality of telescopic holes (1313) are spirally distributed on the optical axis sections (1312) along a thread, and the deviation rectifying assembly (600) comprises a telescopic rod (610) inserted into the telescopic holes (1313) and a driving piece (630) used for driving the telescopic rod (610) to extend out or retract on the optical axis sections (1312).

5. The laser cutting machine for cloth (10) according to claim 4, characterized in that: the deviation rectifying assembly (600) further comprises a plurality of mounting seats (620) arranged along the axial lead direction of the deviation rectifying roller (1421), and the telescopic rod (610) is mounted on the mounting seats (620); the driving piece (630) comprises a control cylinder (631) provided with a connecting head (6311) on a piston rod, and a connecting rod (632) with two ends hinged with the connecting head (6311) and the mounting seat (620) respectively.

6. The laser cutting machine for cloth (10) according to claim 4, characterized in that: the deviation rectifying assembly (600) further comprises a plurality of mounting seats (620) arranged along the axial lead direction of the deviation rectifying roller (1421), and the telescopic rod (610) is mounted on the mounting seats (620); the driving piece (630) is a control cylinder (631) provided with a building block (6312) on a piston rod, a return spring (633) with two ends respectively abutted against the inner walls of the mounting seat (620) and the scutching roller (131) is sleeved on the telescopic rod (610), and one end face, away from the telescopic rod (610), of the mounting seat (620) is attached to the outer side wall of the building block (6312).

7. The laser cutting machine for cloth (10) according to claim 4, characterized in that: the deviation rectifying assembly (600) further comprises a plurality of mounting seats (620) arranged along the axial lead direction of the deviation rectifying roller (1421), and the telescopic rod (610) is mounted on the mounting seats (620); the driving piece (630) is a control cylinder (631) provided with a building block (6312) on a piston rod, one end face of the mounting seat (620) far away from the telescopic rod (610) is attached to the outer side wall of the building block (6312), and the building block (6312) is connected with the mounting seat (620) in a magnetic absorption mode.

8. The laser cutting machine for cloth (10) according to claim 4, characterized in that: the deviation rectifying assembly (600) further comprises a plurality of mounting seats (620) arranged along the axial lead direction of the deviation rectifying roller (1421), and the telescopic rod (610) is mounted on the mounting seats (620); the driving piece (630) comprises an air inlet pipe (634) extending into the optical shaft section (1312) and an air expansion sleeve (635) sleeved outside the air inlet pipe (634), an air outlet hole (6341) is formed in the part, located in the air expansion sleeve (635), of the air inlet pipe (634), and the mounting seat (620) is connected to the outer wall of the air expansion sleeve (635).

9. The laser cutting machine for cloth (10) according to claim 4, characterized in that: the deviation rectifying assembly (600) further comprises a plurality of mounting seats (620) arranged along the axial lead direction of the deviation rectifying roller (1421), and the telescopic rod (610) is mounted on the mounting seats (620); the driving piece (630) comprises an air inlet pipe (634) extending into the optical shaft section (1312) and an air expansion sleeve (635) sleeved outside the air inlet pipe (634), an air outlet hole (6341) is formed in the part, located in the air expansion sleeve (635), of the air inlet pipe (634), and a reset spring (633) is sleeved on the telescopic rod (610), wherein two ends of the reset spring are respectively abutted to the inner walls of the mounting seat (620) and the expanding roller (131).

10. The laser cutting machine according to claim 3 or 4, characterized in that: a deviation correcting device (300) is arranged between the feeding device (200) and the laser cutting device (400), the deviation correcting device (300) comprises an auxiliary scutching roller set (130) and an auxiliary deviation correcting roller set (320), the auxiliary scutching roller set (130) and the primary scutching roller set (130) are identical in structure, and the auxiliary deviation correcting roller set (320) and the primary deviation correcting roller set (142) are identical in structure.