阅读说明：本技术 一种用于织物的数控切割机 (Numerical control cutting machine for fabric ) 是由 钱来钊 于 2021-07-14 设计创作，主要内容包括：本发明涉及纺织技术领域,且公开了一种用于织物的数控切割机,包括用于切割织物的切割机构,所述切割机构包括刀片,刀片的两侧固定连接有导向块,刀片的两侧活动连接有修边机构,刀片和修边机构的轴心均设置有传动机构,传动机构的外部设置有切割电机。通过修边轮内部的配重块由于离心力作用向外侧滑动,则配重块带动活动触块和连接杆向外侧方向移动,达到切割时自动启动,停止时自动关闭,且结束时,烧边头自动收缩与修边轮的内部,不仅防止烧边头在闲置时因磕碰而损坏,同时达到防止停止切割时,烧边头因未及时冷却,同时工作人员操作不当而烧伤的问题,有效保证使用的安全性。(The invention relates to the technical field of textiles and discloses a numerical control cutting machine for fabrics, which comprises a cutting mechanism for cutting fabrics, wherein the cutting mechanism comprises a blade, two sides of the blade are fixedly connected with guide blocks, two sides of the blade are movably connected with trimming mechanisms, the axes of the blade and the trimming mechanisms are respectively provided with a transmission mechanism, and a cutting motor is arranged outside the transmission mechanism. Through the inside balancing weight of edging wheel because centrifugal force effect slides to the outside, then the balancing weight drives movable feeler block and the outside direction of connecting rod and removes, automatic start when reaching the cutting, self-closing when stopping, and when finishing, the automatic shrink of burning edge head and the inside of edging wheel, not only prevent to burn the edge head and damage because of colliding with when idle, reach simultaneously when preventing to stop the cutting, the burning edge head is because of not in time cooling, the problem of staff's misoperation and burn simultaneously, effectively guarantee the security of using.)

1. A numerically controlled cutting machine for fabrics, comprising a cutting mechanism (4) for cutting the fabric, characterized in that: the cutting mechanism (4) comprises a blade (41), guide blocks (411) are fixedly connected to two sides of the blade (41), trimming mechanisms (42) are movably connected to two sides of the blade (41), transmission mechanisms (43) are arranged on the axes of the blade (41) and the trimming mechanisms (42), and a cutting motor (44) is arranged outside the transmission mechanisms (43).

2. A numerically controlled cutting machine for fabrics according to claim 1, characterized in that: the trimming mechanism (42) comprises a trimming wheel (421), a plurality of balancing weights (423) are movably connected to the inner side of the trimming wheel (421), movable contact blocks (424) are fixedly connected to the inner sides of the balancing weights (423), fixed contact blocks (422) are arranged on the two sides of the outer portions of the movable contact blocks (424), connecting rods (425) are fixedly connected to the bottoms of the balancing weights (423), return springs (426) are arranged between the connecting rods (425) and the trimming wheel (421), loop bars (427) are movably connected to the outer portions of the connecting rods (425), buffer springs (428) are arranged between the connecting rods (425) and the loop bars (427), positioning sliders (429) are fixedly connected to the outer portions of the loop bars (427), stoppers (4210) are arranged on the outer portions of the positioning sliders (429), and trimming heads (4211) are fixedly connected to the bottoms of the loop bars (427).

3. A numerically controlled cutting machine for fabrics according to claim 2, characterized in that: the edge burning head (4211) is electrically connected with the fixed contact block (422), the fixed contact block (422) is fixedly connected to two sides of an inner cavity of the edge trimming wheel (421), the fixed contact block (422) is electrically connected with an external circuit, and the edge burning head (4211) is close to one side of the blade (41) and protrudes towards the side direction of the edge of the blade (41).

4. A numerically controlled cutting machine for fabrics according to claim 1, characterized in that: the transmission mechanism (43) comprises an outer shaft (431), a sleeve shaft (432) is movably sleeved in the outer shaft (431), an inner shaft (433) is movably sleeved in the sleeve shaft (432), the outer shaft (431) and the inner shaft (433) are fixedly connected with the trimming mechanisms (42) on the two sides of the blade (41) respectively, the sleeve shaft (432) is fixedly connected with the blade (41), the transmission mechanism (43) further comprises a main shaft (435), the main shaft (435) is fixedly connected with a rotating shaft of the cutting motor (44), a gear set (434) is arranged between the main shaft (435) and the outer shaft (431), between the sleeve shaft (432) and the inner shaft (433), the transmission ratio of the main shaft (435) to the outer shaft (431) is the same as that of the inner shaft (433), and the transmission ratio of the main shaft (435) to the sleeve shaft (432) is larger than that of the main shaft (435) to the outer shaft (431).

5. A numerically controlled cutting machine for fabrics according to claim 1, characterized in that: still including supporting mechanism (5) that is used for supporting the fabric, supporting mechanism (5) are including supporting wheel (51), knife edge groove (52) have been seted up to the inside of supporting wheel (51), supporting wheel (51) are located the both sides of knife edge groove (52) and have seted up inner grove (53), ventilation groove (54) have been seted up to the interior bottom of inner grove (53), the inside fixedly connected with hollow shaft (55) of supporting wheel (51), the one end of hollow shaft (55) and the pivot fixed connection of supporting motor (56), the other end of hollow shaft (55) is provided with dust absorption subassembly (57).

6. A numerically controlled cutting machine for textile fabrics according to claim 5, characterized in that: the knife edge groove (52) is arranged at the bottom of the blade (41), the size of the knife edge groove (52) is matched with the size of the edge part of the blade (41), and the ventilation groove (54) is communicated with the inner cavity of the hollow shaft (55).

7. A numerically controlled cutting machine for fabrics according to claim 1, characterized in that: the cutting mechanism (4) and the supporting mechanism (5) are externally provided with a knife rest (3), the knife rest (3) is movably connected to the bottom of the sliding seat (2), and a cantilever (1) is arranged inside the sliding seat (2).

8. A numerically controlled cutting machine for fabrics according to claim 1, characterized in that: the bottom of the knife rest (3) is provided with a guide knife.

Technical Field

The invention relates to the technical field of textiles, in particular to a numerical control cutting machine for fabrics.

Background

In the textile processing industry, in order to improve production efficiency and technological requirements, a woven fabric is often a whole large fabric composed of a plurality of independent fabrics with the same patterns, and when a finished product is produced, the fabric is usually required to be cut.

The conventional fabric numerical control cutting device is generally used for cutting a straight knife edge, the cutting knife only cuts rectangular pattern fabrics in blocks, and when non-rectangular patterns are cut, the non-rectangular patterns are often cut in a partition mode firstly and then are trimmed for the second time, so that the processing efficiency is low, and the labor cost is increased.

And current fabric cutting device is when the cutting, can not trim the cutting edge of fabric simultaneously, leads to cutting the fabric and often has deckle edge phenomenon, influences the quality of fabric.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the numerical control cutting machine for the fabric, which has the advantages that the cutting route can be reasonably adjusted according to the shape of the fabric, the straight knife cutting is replaced by the point route cutting, the processing efficiency is effectively improved, the processing cost is reduced, trimming can be carried out while cutting, burrs are reduced, and the quality of the fabric is effectively improved.

In order to achieve the purpose, the invention provides the following technical scheme: a numerical control cutting machine for fabrics comprises a cantilever, a sliding seat, a tool rest, a cutting mechanism, a blade, a guide block, a trimming mechanism, a trimming wheel, a fixed contact block, a balancing weight, a movable contact block, a connecting rod, a return spring, a loop bar, a buffer spring, a positioning sliding block, a stop block, a trimming head, a transmission mechanism, an outer shaft, a sleeve shaft, an inner shaft, a gear set, a main shaft, a cutting motor, a supporting mechanism, a supporting wheel, a tool opening groove, an inner groove, a ventilation groove, a hollow shaft, a supporting motor and a dust collection assembly.

The positions and the connection relations of the structures are as follows:

the cutting mechanism comprises a blade, guide blocks are fixedly connected to two sides of the blade, trimming mechanisms are movably connected to two sides of the blade, transmission mechanisms are arranged at the axes of the blade and the trimming mechanisms, and a cutting motor is arranged outside the transmission mechanisms.

Preferably, the trimming mechanism comprises a trimming wheel, a plurality of balancing weights are movably connected to the inner side of the trimming wheel, movable contact blocks are fixedly connected to the inner sides of the balancing weights, fixed contact blocks are arranged on the two outer sides of each movable contact block, a connecting rod is fixedly connected to the bottom of each balancing weight, a reset spring is arranged between each connecting rod and the trimming wheel, a loop bar is movably connected to the outer portion of each connecting rod, a buffer spring is arranged between each connecting rod and the corresponding loop bar, a positioning slider is fixedly connected to the outer portion of each loop bar, a stop block is arranged on the outer portion of each positioning slider, and a trimming head is fixedly connected to the bottom of each loop bar.

Preferably, the edge burning head is electrically connected with the fixed contact block, the fixed contact block is fixedly connected to two sides of the inner cavity of the edge trimming wheel, the fixed contact block is electrically connected with an external circuit, and the edge burning head is close to one side of the blade and protrudes laterally from the edge cutting opening of the blade.

Preferably, the transmission mechanism comprises an outer shaft, a sleeve shaft is movably sleeved in the outer shaft, an inner shaft is movably sleeved in the sleeve shaft, the outer shaft and the inner shaft are fixedly connected with the trimming mechanisms on the two sides of the blade respectively, the sleeve shaft is fixedly connected with the blade, the transmission mechanism further comprises a main shaft, the main shaft is fixedly connected with a rotating shaft of the cutting motor, gear sets are arranged between the main shaft and the outer shaft, between the sleeve shaft and the inner shaft, the transmission ratios of the main shaft to the outer shaft and between the main shaft and the sleeve shaft are the same, and the transmission ratio of the main shaft to the sleeve shaft is larger than that of the main shaft to the outer shaft.

Preferably, still including the supporting mechanism who is used for supporting the fabric, supporting mechanism includes the supporting wheel, and the knife edge groove has been seted up to the inside of supporting wheel, and the supporting wheel is located the both sides in knife edge groove and has seted up the inner groovy, and the ventilation groove has been seted up to the interior bottom of inner groovy, and the inside fixedly connected with hollow shaft of supporting wheel, the one end of hollow shaft and the pivot fixed connection of support motor, the other end of hollow shaft is provided with dust absorption assembly.

Preferably, the knife edge groove is formed in the bottom of the blade, the size of the knife edge groove is matched with the size of the edge portion of the blade, and the ventilation groove is communicated with the hollow cavity in the hollow shaft.

Preferably, the cutting mechanism and the supporting mechanism are externally provided with a tool rest which is movably connected to the bottom of the sliding seat, and the sliding seat is internally provided with a cantilever.

Has the advantages that:

1. this a numerical control cutting machine for fabric cuts through the blade, makes the cutting of straight sword become the point cutting, makes the cutting shape that can adapt to complicacy more, avoids the trouble of secondary repairment, improves cutting efficiency and reduces the processing cost. And meanwhile, trimming is carried out on the trimmed edges by the trimming mechanism while cutting, so that the quality of the fabric is further improved, and the using effect of the device is effectively ensured.

2. This a numerical control cutting machine for fabric, through the inside balancing weight of edging wheel because centrifugal force effect slides to the outside, then the balancing weight drives the outside direction removal of activity feeler block and connecting rod, automatic start when reaching the cutting, self-closing when stopping, and when finishing, burn the inside of limit head automatic contraction and edging wheel, not only prevent to burn the limit head because of colliding with and damaging when idle, reach simultaneously when preventing to stop the cutting, burn the limit head because of not in time cooling, staff's misoperation and the problem of burning simultaneously, effectively guarantee the security of using.

3. According to the numerical control cutting machine for the fabric, the transmission ratios of the main shaft, the outer shaft and the inner shaft are the same, the transmission ratio of the main shaft and the sleeve shaft is larger than that of the main shaft and the outer shaft, and the rotating speeds of the trimming wheels at two sides are larger than the rotating speed of the blade, so that the trimming effect of the trimming mechanism is ensured, and the problem of omission due to the existence of intervals of the edge burning heads is effectively avoided.

4. This a numerical control cutting machine for fabric drives the hollow shaft through supporting motor and rotates, and the hollow shaft drives the supporting wheel and rotates, and the supporting wheel reaches the effect that supports cutting mechanism and cut and carry out the direction to the fabric. In the cutting process, when producing the dust of burning edge, dust absorption assembly produces the negative pressure in the hollow shaft cavity, because ventilation groove and the inside cavity intercommunication of hollow shaft, the ventilation groove has been seted up to the interior bottom of inner groovy, then the inside negative pressure that produces of inner groovy to reach the effect of adsorbing the dust of burning edge, further improve the device's result of use.

Drawings

FIG. 1 is a schematic view of a cutting mechanism according to the present invention;

FIG. 2 is a schematic view of a structural trimming mechanism of the present invention;

FIG. 3 is an enlarged view of part A of FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the transmission mechanism of the present invention;

FIG. 5 is a schematic view of a structural support mechanism of the present invention;

fig. 6 is a schematic view of a structural fabric point cutting device of the present invention.

In the figure: 1. a cantilever; 2. a slide base; 3. a tool holder; 4. a cutting mechanism; 41. a blade; 411. a guide block; 42. a trimming mechanism; 421. trimming wheels; 422. fixing the contact block; 423. a balancing weight; 424. a movable contact block; 425. a connecting rod; 426. a return spring; 427. a loop bar; 428. a buffer spring; 429. positioning the sliding block; 4210. a stopper; 4211. burning the edge head; 43. a transmission mechanism; 431. an outer shaft; 432. a sleeve shaft; 433. an inner shaft; 434. a gear set; 435. a main shaft; 44. cutting the motor; 5. a support mechanism; 51. a support wheel; 52. a knife edge groove; 53. an inner groove; 54. a ventilation slot; 55. a hollow shaft; 56. a support motor; 57. a dust collection assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1, a numerical control cutting machine for fabric includes a cutting mechanism 4 for cutting fabric, the cutting mechanism 4 includes a blade 41, two sides of the blade 41 are fixedly connected with a guide block 411, two sides of the blade 41 are movably connected with an edge trimming mechanism 42, axes of the blade 41 and the edge trimming mechanism 42 are both provided with a transmission mechanism 43, and a cutting motor 44 is arranged outside the transmission mechanism 43.

Preferably, the transmission mechanism 43 includes an outer shaft 431, a sleeve shaft 432 is movably sleeved inside the outer shaft 431, an inner shaft 433 is movably sleeved inside the sleeve shaft 432, the outer shaft 431 and the inner shaft 433 are respectively and fixedly connected with the trimming mechanisms 42 at two sides of the blade 41, the sleeve shaft 432 is fixedly connected with the blade 41, the transmission mechanism 43 further includes a main shaft 435, the main shaft 435 is fixedly connected with a rotating shaft of the cutting motor 44, a gear set 434 is arranged between the main shaft 435 and the outer shaft 431, the sleeve shaft 432 and the inner shaft 433, the transmission ratio of the main shaft 435 is the same as that of the outer shaft 431 and the inner shaft 433, and the transmission ratio of the main shaft 435 to the sleeve shaft 432 is greater than that of the main shaft 435 and the outer shaft 431.

During cutting, the cutting motor 44 drives the main shaft 435 to rotate, the main shaft 435 drives the outer shaft 431, the sleeve shaft 432 and the inner shaft 433 to rotate through the transmission mechanism 43, the outer shaft 431 and the inner shaft 433 drive the trimming mechanisms 42 on the two sides to rotate, the sleeve shaft 432 drives the blade 41 to rotate, and because the transmission ratio of the main shaft 435 to the outer shaft 431 and the transmission ratio of the main shaft 432 to the sleeve shaft 435 are the same as those of the outer shaft 431 and the outer shaft 431, the rotating speeds of the trimming mechanisms 42 on the two sides are the same, and the rotating speed of the trimming mechanisms 42 is greater than that of the blade 41.

Meanwhile, when the blade 41 cuts off the fabric, the fabric trimming edge slides away from the blade 41 due to certain tension of the fabric, so that the guide block 411 enables the fabric trimming edge to turn upwards, and the guide block 411 enables the fabric trimming edge to be in contact with the trimming mechanism 42.

Example two

Referring to fig. 1-3, a numerical control cutting machine for fabric includes a cutting mechanism 4 for cutting fabric, the cutting mechanism 4 includes a blade 41, two sides of the blade 41 are fixedly connected with a guide block 411, two sides of the blade 41 are movably connected with an edge trimming mechanism 42, axes of the blade 41 and the edge trimming mechanism 42 are both provided with a transmission mechanism 43, and a cutting motor 44 is arranged outside the transmission mechanism 43.

The trimming mechanism 42 comprises a trimming wheel 421, a plurality of balancing weights 423 are movably connected to the inner side of the trimming wheel 421, movable contact blocks 424 are fixedly connected to the inner portions of the balancing weights 423, fixed contact blocks 422 are arranged on two outer sides of the movable contact blocks 424, connecting rods 425 are fixedly connected to the bottoms of the balancing weights 423, return springs 426 are arranged between the connecting rods 425 and the trimming wheel 421, sleeve rods 427 are movably connected to the outer portions of the connecting rods 425, buffer springs 428 are arranged between the connecting rods 425 and the sleeve rods 427, positioning sliders 429 are fixedly connected to the outer portions of the sleeve rods 427, stoppers 4210 are arranged on the outer portions of the positioning sliders 429, and trimming heads 4211 are fixedly connected to the bottoms of the sleeve rods 427.

The edge burning head 4211 is electrically connected with the fixed contact block 422, the fixed contact block 422 is fixedly connected to two sides of the inner cavity of the edge trimming wheel 421, the fixed contact block 422 is electrically connected with an external circuit, and one side of the edge burning head 4211, which is close to the blade 41, protrudes laterally towards the edge of the blade 41.

The transmission mechanism 43 comprises an outer shaft 431, a sleeve shaft 432 is movably sleeved in the outer shaft 431, an inner shaft 433 is movably sleeved in the sleeve shaft 432, the outer shaft 431 and the inner shaft 433 are respectively and fixedly connected with the trimming mechanisms 42 on the two sides of the blade 41, the sleeve shaft 432 is fixedly connected with the blade 41, the transmission mechanism 43 further comprises a main shaft 435, the main shaft 435 is fixedly connected with a rotating shaft of the cutting motor 44, a gear set 434 is arranged between the main shaft 435 and the outer shaft 431, the sleeve shaft 432 and the inner shaft 433, the transmission ratio of the main shaft 435 to the inner shaft 433 is the same as that of the outer shaft 431 and the inner shaft 433, and the transmission ratio of the main shaft 435 to the sleeve shaft 432 is larger than that of the main shaft 435 to the outer shaft 431.

Compared with the first embodiment, the difference lies in that the trimming wheel 421 of the trimming mechanism 42 rotates, the weight block 423 inside the trimming wheel 421 slides outwards due to the centrifugal force, the weight block 423 drives the movable contact block 424 and the connecting rod 425 to move outwards, the movable contact block 424 contacts with the fixed contact blocks 422 on the two sides, the weight block 423 compresses the return spring 426, the connecting rod 425 and the sleeve rod 427 are provided with the buffer spring 428, the connecting rod 425 drives the sleeve rod 427 to slide outwards, the positioning slider 429 and the stopper 4210 ensure the maximum displacement distance of the sleeve rod 427, the sleeve rod 427 drives the edge burning head 4211, the edge burning head 4211 contacts with the fabric trimming, the edge burning effect is achieved, the yarn end of the fabric trimming is removed, the trimming of the fabric is effectively performed, and the quality of the fabric is improved.

EXAMPLE III

Referring to fig. 5, the numerical control cutting machine for fabric includes a supporting mechanism 5 for supporting fabric, the supporting mechanism 5 includes a supporting wheel 51, a knife edge groove 52 is formed inside the supporting wheel 51, inner grooves 53 are formed on two sides of the supporting wheel 51, which are located on the knife edge groove 52, a ventilation groove 54 is formed on the inner bottom of the inner groove 53, a hollow shaft 55 is fixedly connected inside the supporting wheel 51, one end of the hollow shaft 55 is fixedly connected with a rotating shaft of a supporting motor 56, and a dust suction assembly 57 is arranged on the other end of the hollow shaft 55.

The knife edge groove 52 is arranged at the bottom of the blade 41, the size of the knife edge groove 52 is matched with that of the blade part of the blade 41, and the ventilation groove 54 is communicated with the inner cavity of the hollow shaft 55.

In the processing process, the supporting motor 56 drives the hollow shaft 55 to rotate, the hollow shaft 55 drives the supporting wheel 51 to rotate, and the supporting wheel 51 achieves the effects of supporting the cutting mechanism 4 to cut and guiding the fabric.

In the cutting process, when producing the dust of burning edge, dust absorption assembly 57 produces the negative pressure in hollow shaft 55 cavity, because ventilation groove 54 and the inside cavity intercommunication of hollow shaft 55, ventilation groove 54 has been seted up to the interior bottom of inner groovy 53, then the inside negative pressure that produces of inner groovy 53 to reach the effect of adsorbing the dust of burning edge, further improve the device's result of use.

Example four

Referring to fig. 1-6, a numerical control cutting machine for fabric comprises a cutting mechanism 4 for cutting fabric, the cutting mechanism 4 comprises a blade 41, two sides of the blade 41 are fixedly connected with guide blocks 411, two sides of the blade 41 are movably connected with an edge trimming mechanism 42, the axes of the blade 41 and the edge trimming mechanism 42 are both provided with a transmission mechanism 43, and the outside of the transmission mechanism 43 is provided with a cutting motor 44.

The trimming mechanism 42 comprises a trimming wheel 421, a plurality of balancing weights 423 are movably connected to the inner side of the trimming wheel 421, movable contact blocks 424 are fixedly connected to the inner portions of the balancing weights 423, fixed contact blocks 422 are arranged on two outer sides of the movable contact blocks 424, connecting rods 425 are fixedly connected to the bottoms of the balancing weights 423, return springs 426 are arranged between the connecting rods 425 and the trimming wheel 421, sleeve rods 427 are movably connected to the outer portions of the connecting rods 425, buffer springs 428 are arranged between the connecting rods 425 and the sleeve rods 427, positioning sliders 429 are fixedly connected to the outer portions of the sleeve rods 427, stoppers 4210 are arranged on the outer portions of the positioning sliders 429, and trimming heads 4211 are fixedly connected to the bottoms of the sleeve rods 427.

The edge burning head 4211 is electrically connected with the fixed contact block 422, the fixed contact block 422 is fixedly connected to two sides of the inner cavity of the edge trimming wheel 421, the fixed contact block 422 is electrically connected with an external circuit, and one side of the edge burning head 4211, which is close to the blade 41, protrudes laterally towards the edge of the blade 41.

The transmission mechanism 43 comprises an outer shaft 431, a sleeve shaft 432 is movably sleeved in the outer shaft 431, an inner shaft 433 is movably sleeved in the sleeve shaft 432, the outer shaft 431 and the inner shaft 433 are respectively and fixedly connected with the trimming mechanisms 42 on the two sides of the blade 41, the sleeve shaft 432 is fixedly connected with the blade 41, the transmission mechanism 43 further comprises a main shaft 435, the main shaft 435 is fixedly connected with a rotating shaft of the cutting motor 44, a gear set 434 is arranged between the main shaft 435 and the outer shaft 431, the sleeve shaft 432 and the inner shaft 433, the transmission ratio of the main shaft 435 to the inner shaft 433 is the same as that of the outer shaft 431 and the inner shaft 433, and the transmission ratio of the main shaft 435 to the sleeve shaft 432 is larger than that of the main shaft 435 to the outer shaft 431.

Wherein, still including the supporting mechanism 5 that is used for supporting the fabric, supporting mechanism 5 includes supporting wheel 51, and knife edge groove 52 has been seted up to the inside of supporting wheel 51, and supporting wheel 51 is located the both sides of knife edge groove 52 and has seted up inner groovy 53, and ventilation groove 54 has been seted up to the interior bottom of inner groovy 53, and the inside fixedly connected with hollow shaft 55 of supporting wheel 51, the one end of hollow shaft 55 and the pivot fixed connection of support motor 56, and the other end of hollow shaft 55 is provided with dust absorption subassembly 57.

The knife edge groove 52 is arranged at the bottom of the blade 41, the size of the knife edge groove 52 is matched with that of the blade part of the blade 41, and the ventilation groove 54 is communicated with the inner cavity of the hollow shaft 55.

Wherein, the cutting mechanism 4 and the supporting mechanism 5 are externally provided with a knife rest 3, the knife rest 3 is movably connected with the bottom of the sliding seat 2, and the sliding seat 2 is internally provided with a cantilever 1.

In the cutting process, the positions of the cantilever 1 and the slide seat 2 are controlled through numerical control equipment, the effect of controlling a cutting route is achieved, and the cutter rest 3 moves the fabric to cut.

During cutting, the cutting motor 44 drives the main shaft 435 to rotate, the main shaft 435 drives the outer shaft 431, the sleeve shaft 432 and the inner shaft 433 to rotate through the transmission mechanism 43, the outer shaft 431 and the inner shaft 433 drive the trimming mechanisms 42 on the two sides to rotate, the sleeve shaft 432 drives the blade 41 to rotate, and because the transmission ratio of the main shaft 435 to the outer shaft 431 and the transmission ratio of the main shaft 432 to the sleeve shaft 435 are the same as those of the outer shaft 431 and the outer shaft 431, the rotating speeds of the trimming mechanisms 42 on the two sides are the same, and the rotating speed of the trimming mechanisms 42 is greater than that of the blade 41.

Meanwhile, when the blade 41 cuts off the fabric, the fabric trimming edge slides away from the blade 41 due to certain tension of the fabric, so that the guide block 411 enables the fabric trimming edge to turn upwards, and the guide block 411 enables the fabric trimming edge to be in contact with the trimming mechanism 42.

The trimming wheel 421 of the trimming mechanism 42 rotates, the balancing weight 423 in the trimming wheel 421 slides outwards due to the centrifugal force, the balancing weight 423 drives the movable contact block 424 and the connecting rod 425 to move outwards, the movable contact block 424 contacts with the fixed contact blocks 422 on the two sides, meanwhile, the balancing weight 423 compresses the return spring 426, the connecting rod 425 and the loop bar 427 are provided with the buffer spring 428, the connecting rod 425 drives the loop bar 427 to slide outwards, the positioning slide block 429 and the stop block 4210 ensure the maximum displacement distance of the loop bar 427, the loop bar 427 drives the edge burning head 4211, the edge burning head 4211 is in contact with the fabric trimming edge, the edge burning effect is achieved, the yarn head of the fabric trimming edge is removed, the trimming edge of the fabric is effectively trimmed, and the quality of the fabric is improved.

Meanwhile, when the blade 41 cuts off the fabric, the fabric trimming edge slides away from the blade 41 due to certain tension of the fabric, so that the guide block 411 enables the fabric trimming edge to turn upwards, and the guide block 411 enables the fabric trimming edge to be in contact with the trimming mechanism 42.

During cutting, the supporting motor 56 drives the hollow shaft 55 to rotate, the hollow shaft 55 drives the supporting wheel 51 to rotate, and the supporting wheel 51 achieves the effects of supporting the cutting mechanism 4 to cut and guiding the fabric.

In the cutting process, when producing the dust of burning edge, dust absorption assembly 57 produces the negative pressure in hollow shaft 55 cavity, because ventilation groove 54 and the inside cavity intercommunication of hollow shaft 55, ventilation groove 54 has been seted up to the interior bottom of inner groovy 53, then the inside negative pressure that produces of inner groovy 53 to reach the effect of adsorbing the dust of burning edge, further improve the device's result of use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.