CN111335016A

CN111335016A - Combing cotton net shearing device

Info

Publication number: CN111335016A
Application number: CN201911361726.7A
Authority: CN
Inventors: 王志林; 钱叶龙; 卢文定
Original assignee: Tongling Longjia Electrical Co ltd
Current assignee: Tongling Longjia Electrical Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-06-26
Anticipated expiration: 2039-12-26
Also published as: CN111335016B

Abstract

The invention belongs to the technical field of shearing devices, and particularly relates to a combed cotton net shearing device which comprises a working box, a feeding plate and a supporting frame, wherein the working plate is arranged in the working box, a first push rod is arranged at the top end of the inner part of the working box, the bottom of the first push rod is connected with a shearing plate, a shearing groove is formed in the bottom end of the middle part of the shearing plate, a second push rod is arranged on the top surface of the inner part of the shearing groove, the bottom end of the second push rod is connected with a cutter, the bottom end of the shearing plate is provided with a sliding cavity, a sliding plate is connected to the inner part of the sliding cavity in a sliding manner, a first pressing plate is; according to the invention, the two ends of the combed cotton net can be fixed through the arranged shearing device, the slippage of the two ends of the cotton net during the working of the shearing device is reduced, so that the shearing precision of the shearing device is improved, and meanwhile, the cutting length of the cotton net can be conveniently and quickly adjusted, so that the convenience and the practicability of the shearing device during the working are improved.

Description

Combing cotton net shearing device

Technical Field

The invention belongs to the technical field of shearing devices, and particularly relates to a shearing device for a combed cotton net.

Background

The combed cotton net is formed by overlapping and lapping single separating bundles output by a separating roller of the comber, and the quality of the comber is an important index for evaluating the performance of the comber.

In order to obtain an accurate weight distribution curve of a single separation bundle and a weight distribution curve of a cotton net and predict and evaluate combing quality, the single separation bundle needs to be cut and weighed with the length of 2mm or even shorter; at present, when fibers are cut off, manual cutting and mechanical cutting are generally adopted; the manual work is cut off not only intensity of labour is high, and work efficiency is low, still can not make the length that cuts off carry out effectual control, and traditional shearing mechanism often can not carry out effectual fixed to the cotton web for the cotton web is easy atress in the cutting process and takes place to slide, thereby causes the influence to the cutting precision of cotton web.

In view of the above, the invention provides a shearing device for a combed cotton net, which can fix two ends of the combed cotton net and reduce the sliding of the two ends of the cotton net when the shearing device works, so that the shearing precision of the shearing device is improved, and meanwhile, the cutting length of the cotton net can be conveniently and quickly adjusted, so that the convenience and the practicability of the shearing device during working are improved.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides the combing cotton net shearing device which can fix the two ends of the combing cotton net and reduce the sliding of the two ends of the cotton net when the shearing device works, so that the shearing precision of the shearing device is improved, and meanwhile, the cutting length of the cotton net can be conveniently and quickly adjusted, so that the convenience and the practicability of the shearing device during working are improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: a combed cotton net shearing device comprises a working box, a feeding plate and a supporting frame, wherein the feeding plate is arranged on one side of the working box, and the supporting frame is positioned at the bottom end of the working box; the side surface of the working box is provided with a feeding hole along the extending direction of the feeding plate, the bottom end of the side surface of the working box opposite to the feeding plate is provided with a collecting box, the working box in which the feeding hole is positioned is internally provided with a working plate, the top end of the inner part of the working box is provided with a first push rod, the bottom of the first push rod is connected with a shearing plate, the bottom end of the middle part of the shearing plate is provided with a shearing groove, the top surface of the inner part of the shearing groove is provided with a second push rod, the bottom end of the second push rod is connected with a cutter, the bottom end of one side of the shearing plate close to the collecting box is provided with a sliding cavity, the sliding cavity is connected with a sliding plate in a sliding way, the middle part of the sliding plate is connected with a first pressing plate, the working plate at the bottom end of the sliding plate is provided with a sliding groove, the ball screw is connected with a sliding block in a sliding mode, connecting grooves are symmetrically formed in the top end of the sliding block, connecting rods are arranged on the bottom surface of the sliding plate corresponding to the top ends of the connecting grooves, the bottom ends of the connecting rods are located inside the connecting grooves and can freely slide inside the connecting grooves, and the top surface of the sliding block is connected with the bottom surface of the sliding plate through springs; the bottom end of one side of the shearing plate, which is close to the feeding plate, is connected with a second pressing plate; the controller is arranged in the working box and used for controlling the automatic operation of the device; when the device works, in order to obtain an accurate weight distribution curve of a single separation bundle and a weight distribution curve of a cotton net and predict and evaluate combing quality, the single separation bundle needs to be cut and weighed with the length of 2mm or even shorter; at present, when fibers are cut off, manual cutting and mechanical cutting are generally adopted; the manual cutting has high labor intensity and low working efficiency, the cutting length cannot be effectively controlled, and the traditional cutting device cannot effectively fix the cotton net, so that the cotton net is easily stressed and slides in the cutting process, and the cutting precision of the cotton net is influenced; when the shearing device works, firstly, the cotton net positioned on the feeding plate is pushed into the shearing device from the feeding port of the working box, so that the end part of the cotton net moves to one side of the sliding plate on the working plate, the sliding plate arranged at the moment can limit the cotton net, the distance between the sliding plate and the cutter is the length of the cotton net to be sheared, when the cotton net is sheared, the controller controls the first pressing plate to drive the sliding plate at the bottom end of the shearing plate to move downwards by the first pushing rod, the connecting rod is driven to slide into the connecting groove by applying pressure to the spring at the bottom end when the sliding plate moves downwards, the first pressing plate at one side of the sliding plate moves to the end part of the cotton net at the bottom end and extrudes and fixes the end part of the cotton net, and simultaneously the shearing plate drives the second pressing plate at the other end to extrude and fix the other end of the cotton net to be sheared, and then the second pushing rod pushes the cutter to cut, the slippage of two ends of the cotton net is reduced when the shearing device works, so that the shearing precision of the shearing device is improved, and the sheared cotton net can be collected by the arranged collecting box; and when the shearing length of the cotton net needs to be adjusted, the sliding block at the ball screw on the rotating rod is driven to slide by rotating the rotary table, the sliding block drives the sliding plate at the top to slide in the sliding cavity by penetrating the connecting rod in the connecting groove, so that the cutting distance between the side surface of the sliding plate and the cutter is effectively controlled, the cotton net can be adjusted at will when the cotton net is convenient and fast, and the convenience and the practicability of the shearing device during working are increased.

Preferably, an extrusion groove is formed in one side, close to the cutter, of the bottom end of the sliding plate, an extrusion plate is connected to the inside of the extrusion groove in a sliding mode, the inner end of the extrusion plate is connected with the inner end face of the extrusion groove through a spring, a support cavity is formed in the working plate at the bottom end of the cutter, a support groove is formed in the side wall, close to the extrusion plate, of the support cavity, an arc-shaped first support rod is hinged to the inside of the support groove, one end, close to the extrusion plate, of the first support rod extends into the sliding groove, the other end of the first support rod is connected with a support plate, and a cutting opening is formed; the during operation, when fixing the cotton net both ends, the slide downstream drives the stripper plate and extrudees downwards to a bracing piece outer end of one side in the spout, make the bracing piece atress drive the backup pad upward movement of the other end to the cotton net department that supports the chamber top, the backup pad can be with the cotton net jack-up that the cutting was waited to cut in the cutting cut both sides upwards this moment, when making the cutter cut the cotton net, the outward flange at cutting cut both ends forms crisscross stress from top to bottom on cutter bottom and the backup pad, thereby make things convenient for the cotton net to carry out quick effectual cutting, the high efficiency of shearing mechanism during operation has been increased.

Preferably, the top end of the second pressing plate is connected with the second push rod, a pressing groove is formed in a working plate at the bottom end of the second pressing plate, a locking block is connected to the inside of the pressing groove in a sliding mode, the bottom end of the locking block is connected with the bottom surface of the pressing groove through a spring, a locking groove communicated with the pressing groove is formed in the side wall, close to the supporting cavity, of the pressing groove, a second supporting rod is hinged to the inside of the locking groove, one end, close to the pressing groove, of the second supporting rod extends into the pressing groove, and the other end of the second supporting rod is located at the bottom end of the; when the device works, the shear plate firstly drives the first pressure plate to fix the inner end of the cotton net, and simultaneously drives the second pressure plate to move and be attached to the locking block, then when the second push rod moves downwards, the second push rod firstly drives the second pressure plate to extrude the locking block, so that the cotton net between the two is extruded and fixed under stress, and simultaneously the locking block moving downwards extrudes the outer end of the second support rod at the bottom, thereby make No. two bracing piece outer ends take place to rotate and support the backup pad tip at top, the backup pad tip has strengthened the backup pad to the supporting effect of cotton net by the foretell form that two bracing pieces of transform are synchronous to support by a bracing piece only this moment, drives the cutter when No. two push rods continue downstream afterwards and carries out effective and quick cutting to fixed cotton net, has strengthened the high efficiency and the stability of shearing mechanism during operation.

Preferably, the top surface of the locking block is flush with the upper plane of the working plate in a natural state, and the distance from the bottom end of the second pressure plate to the working plate is greater than the distance from the bottom end of the first pressure plate to the working plate; during operation, top surface through setting up the latch segment flushes with the working plate upper plane mutually under natural state, make the cotton net inner that slides in from the working plate outer end under the initial condition can smooth steady the sliding to slide one side, reduce the cotton net that latch segment top surface protrusion or sunken lead to and the hindrance that the in-process received sliding, and through the difference in height that sets up No. two clamp plate bottoms and a clamp plate bottom, make a clamp plate fix cotton net inner in advance, reduce the sideslip that No. two clamp plates drive the cotton net when fixed to the cotton net outer end in advance, thereby reduce the cutting length that the cotton net sideslips and lead to and take place the deviation, and then improved the accuracy of shearing mechanism during operation.

Preferably, the opening shapes of the locking block and the pressing groove are respectively set to be in a table shape, and the top end of the opening of the pressing groove and the edge of the working plate are set to be in circular arc transition; during operation, through setting up the latch segment and compressing tightly the opening shape in groove, and will compress tightly the edge of groove opening top and working plate and set to the circular arc transition, not only make the convenient light indentation that compresses tightly inslot portion of latch segment slide, can also effectually reduce the indentation that the latch segment drove the cotton net and lead to the cotton net when compressing tightly inslot portion when the cotton net extrudees into, thereby reduce the deformation and the crushing that the cotton net led to when No. two clamp plates and latch segment are fixed, and then reduce the damage that shearing mechanism during operation led to the cotton net.

Preferably, the turntable is provided with a reference block, and the side surface of the working box close to the turntable is provided with annularly and uniformly distributed scale marks; during operation, through setting up the reference block on the carousel, and be provided with the scale mark of annular equipartition on the side that is close to the carousel on the work box, rotate the round through calculating the carousel and drive the gliding distance of slider, and correspond the turned angle of carousel and the sliding distance of slider, can effectually control the sliding distance of slider through reference block and scale mark, thereby can be accurate adjust the cutting length to the cotton net, further reinforcing the accuracy and the validity of shearing mechanism during operation.

The invention has the following beneficial effects:

1. according to the invention, the two ends of the combed cotton net can be fixed through the arranged shearing device, the slippage of the two ends of the cotton net during the working of the shearing device is reduced, so that the shearing precision of the shearing device is improved, and meanwhile, the cutting length of the cotton net can be conveniently and quickly adjusted, so that the convenience and the practicability of the shearing device during the working are improved.

2. The bottom end of the cutter is provided with the supporting plate and the supporting cavity; the cotton net to be cut in the supporting cavity is upwards jacked up through the supporting plate when the sliding plate moves downwards, so that the cotton net is conveniently and effectively cut quickly, and the working efficiency of the shearing device is improved.

Drawings

The invention will be further explained with reference to the drawings.

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

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

FIG. 3 is an enlarged view at A in FIG. 2;

in the figure: the device comprises a working box 1, a feeding port 11, a collecting box 12, a first push rod 13, a feeding plate 2, a supporting frame 3, a working plate 4, a sliding groove 41, a supporting cavity 42, a supporting groove 43, a first supporting rod 44, a supporting plate 45, a cutting port 46, a shearing plate 5, a shearing groove 51, a second push rod 52, a cutter 53, a sliding cavity 54, a sliding plate 55, an extrusion groove 551, an extrusion plate 552, a first pressing plate 56, a second pressing plate 57, a rotating shaft 6, a rotating disc 61, a sliding block 62, a connecting groove 63, a connecting rod 64, a pressing groove 7, a locking block 71, a locking groove 72 and a second supporting rod 73.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the following embodiments.

As shown in fig. 1-3, the combing cotton net shearing device comprises a working box 1, a feeding plate 2 and a supporting frame 3, wherein the feeding plate 2 is arranged at one side of the working box 1, and the supporting frame 3 is positioned at the bottom end of the working box 1; the side surface of the working box 1 is provided with a feeding hole 11 along the extending direction of the feeding plate 2, the bottom end of the side surface of the working box 1 opposite to the feeding plate 2 is provided with a collecting box 12, the inside of the working box 1 where the feeding hole 11 is located is provided with a working plate 4, the top end of the inside of the working box 1 is provided with a first push rod 13, the bottom of the first push rod 13 is connected with a shear plate 5, the bottom end of the middle part of the shear plate 5 is provided with a shear groove 51, the top surface of the inside of the shear groove 51 is provided with a second push rod 52, the bottom end of the second push rod 52 is connected with a cutter 53, the bottom end of one side of the shear plate 5 close to the collecting box 12 is provided with a sliding cavity 54, the inside of the sliding cavity 54 is connected with a sliding plate 55 in a sliding manner, the middle part of the sliding plate 55 is connected with a first press plate 56, the working plate 4, the outer end of the rotating shaft 6 is connected with a rotating disc 61, a ball screw is arranged at the position, corresponding to the sliding plate 55, of the inner end of the rotating shaft 6, a sliding block 62 is connected to the ball screw in a sliding mode, connecting grooves 63 are symmetrically formed in the top ends of the sliding blocks 62, a connecting rod 64 is arranged on the bottom surface, corresponding to the top ends of the connecting grooves 63, of the sliding plate 55, the bottom end of the connecting rod 64 is located inside the connecting grooves 63 and can freely slide inside the connecting grooves 63, and the top surface of the sliding block; the bottom end of one side of the shearing plate 5 close to the feeding plate 2 is connected with a second pressing plate 57; a controller is arranged in the working box 1 and used for controlling the automatic operation of the device; when the device works, in order to obtain an accurate weight distribution curve of a single separation bundle and a weight distribution curve of a cotton net and predict and evaluate combing quality, the single separation bundle needs to be cut and weighed with the length of 2mm or even shorter; at present, when fibers are cut off, manual cutting and mechanical cutting are generally adopted; the manual cutting has high labor intensity and low working efficiency, the cutting length cannot be effectively controlled, and the traditional cutting device cannot effectively fix the cotton net, so that the cotton net is easily stressed and slides in the cutting process, and the cutting precision of the cotton net is influenced; when the shearing device works, firstly, the cotton net positioned on the feeding plate 2 is pushed into the feeding box 1 from the feeding port 11 so that the end part of the cotton net moves to one side of the sliding plate 55 on the working plate 4, the sliding plate 55 arranged at the moment can limit the cotton net, the distance between the sliding plate 55 and the cutter 53 is the length of the cotton net to be sheared, when the cotton net is sheared, the controller controls the first push rod 13 to drive the sliding plate 55 at the bottom end of the shearing plate 5 to move downwards, at the moment, the sliding plate 55 drives the connecting rod 64 to slide into the connecting groove 63 by applying pressure to the spring at the bottom end when moving downwards, so that the first pressing plate 56 at one side of the sliding plate 55 moves to the end part of the cotton net at the bottom end and extrudes and fixes the end part of the cotton net, and simultaneously, the shearing plate 5 drives the second pressing plate 57 at the other end to extrude and fix the other end of the cotton net, and thus the two, then, the second push rod 52 pushes the cutter 53 to cut the cotton net at the bottom, so that the sliding of two ends of the cotton net is reduced when the shearing device works, the shearing precision of the shearing device is improved, and the arranged collecting box 12 can collect the sheared cotton net; and when the shearing length of cotton web needs to be adjusted, slide 62 of ball screw department on the carousel 61 drive bull stick through rotating this moment, slide 62 drives the slide 55 at top in sliding chamber 54 through alternating at the inside connecting rod 64 of spread groove 63 and slides this moment, thereby make the cutting distance between slide 55 side and the cutter 53 carry out effectual control, convenient and fast's while, can adjust the cutting length of cotton web at will, thereby the convenience and the practicality of shearing mechanism during operation have been increased.

As an embodiment of the present invention, a pressing groove 551 is provided at one side of the bottom end of the sliding plate 55 close to the cutting knife 53, a pressing plate 552 is slidably connected inside the pressing groove 551, an inner end of the pressing plate 552 is connected with an inner end surface of the pressing groove 551 through a spring, a supporting cavity 42 is provided on the working plate 4 at the bottom end of the cutting knife 53, a supporting groove 43 is provided on a side wall of the supporting cavity 42 close to the pressing plate 552, an arc first supporting rod 44 is hinged inside the supporting groove 43, one end of the first supporting rod 44 close to the pressing plate 552 extends into the sliding groove 41, the other end of the first supporting rod 44 is connected with a supporting plate 45, and a cutting opening 46 is provided at a position on the supporting plate 45 corresponding to the bottom end of the cutting knife; the during operation, when fixing the cotton net both ends, slide 55 downstream drives the stripper plate 552 and extrudees downwards to a bracing piece 44 outer end of one side in spout 41, make bracing piece atress drive backup pad 45 upward movement of the other end to the cotton net department at support chamber 42 top, backup pad 45 can be with the cotton net jack-up that cutting opening 46 both sides were treated to the cutting this moment, when making cutter 53 cut the cotton net, the outward flange at cutting opening 46 both ends forms crisscross stress from top to bottom on cutter 53 bottom and the backup pad 45, thereby make things convenient for the cotton net to carry out quick effectual cutting, the high efficiency of shearing mechanism during operation has been increased.

As an embodiment of the invention, the top end of the second pressing plate 57 is connected with the second push rod 52, the working plate 4 at the bottom end of the second pressing plate 57 is provided with a pressing groove 7, a locking block 71 is slidably connected inside the pressing groove 7, the bottom end of the locking block 71 is connected with the bottom surface of the pressing groove 7 through a spring, a locking groove 72 communicated with the pressing groove 7 is arranged on the side wall of the pressing groove 7 close to the supporting cavity 42, a second supporting rod 73 is hinged inside the locking groove 72, one end of the second supporting rod 73 close to the pressing groove 7 extends into the pressing groove 7, and the other end of the second supporting rod 73 is located at the bottom end of the supporting plate 45; when the cotton cutting device works, the shearing plate 5 firstly drives the first pressing plate 56 to fix the inner end of the cotton net, and simultaneously drives the second pressing plate 57 to move and fit with the locking block 71, then when the second pushing rod 52 moves downwards, the second pushing rod 52 firstly drives the second pressing plate 57 to extrude the locking block 71, so that the cotton net between the two pressing plates is extruded and fixed under stress, and simultaneously the locking block 71 moving downwards extrudes the outer end of the second supporting rod 73 at the bottom, so that the outer end of the second supporting rod 73 rotates and supports the end part of the supporting plate 45 at the top, at the moment, the end part of the supporting plate 45 is supported and changed into a symmetrical two-supporting-rod synchronous supporting form by the first supporting rod 44, the supporting effect of the supporting plate 45 on the cotton net is enhanced, and then the second pushing rod 52 drives the cutter 53 to cut the fixed cotton net effectively and quickly when continuing to move downwards, the high efficiency and the stability of the shearing device during working are enhanced.

As an embodiment of the present invention, the top surface of the locking block 71 is flush with the upper plane of the working plate 4 in a natural state, and the distance from the bottom end of the second pressing plate 57 to the working plate 4 is greater than the distance from the bottom end of the first pressing plate 56 to the working plate 4; during operation, top surface through setting up latch segment 71 flushes with the last plane of working plate 4 mutually under natural state, the cotton web inner that makes 4 outer ends of working plate slide in under the initial condition can smooth steady the sliding to slide 55 one side, reduce the cotton web that latch segment 71 top surface protrusion or sunken lead to and slide in the hindrance that the in-process received, and through the difference in height that sets up No. two clamp plates 57 bottom and No. one clamp plate 56 bottom, make No. one clamp plate 56 fix cotton web inner in advance, reduce No. two clamp plates 57 and drive the sideslip of cotton web when fixing the cotton web outer end in advance, thereby reduce the cutting length that the cotton web sideslip leads to and take place the deviation, and then improved the accuracy of shearing mechanism during operation.

As an embodiment of the invention, the opening shapes of the locking block 71 and the pressing groove 7 are respectively set to be a table shape, and the top end of the opening of the pressing groove 7 and the edge of the working plate 4 are set to be in circular arc transition; during operation, through setting up latch segment 71 and the opening shape that compresses tightly groove 7, and will compress tightly the edge of groove 7 opening top and working plate 4 and set the circular arc transition into, not only make the convenient light indentation that compresses tightly inside groove 7 of latch segment 71, can also effectually reduce the indentation that results in the cotton web compressing tightly the indentation of groove 7 opening part when latch segment 71 drives the cotton web extrusion and compresses tightly inside groove 7, thereby reduce the deformation and the crushing that the cotton web leads to when No. two clamp plates 57 are fixed with latch segment 71, and then reduce the damage that shearing mechanism during operation led to the cotton web.

As an embodiment of the present invention, a reference block is arranged on the turntable 61, and the side surface of the work box 1 close to the turntable 61 is provided with annularly and uniformly distributed scale marks; during operation, through setting up the reference block on carousel 61, and be provided with the scale mark of annular equipartition on work box 1 on the side that is close to carousel 61, rotate the gliding distance of round drive slider 62 through calculating carousel 61, and corresponding with the turned angle of carousel 61 and the sliding distance of slider 62, can effectually control slider 62's sliding distance through reference block and scale mark, thereby can be accurate adjust the cutting length to the cotton-wadded net, further reinforcing shearing mechanism during operation accuracy and validity.

When the cotton net shearing machine works, firstly, a cotton net positioned on the feeding plate 2 is pushed into the feeding port 11 of the working box 1, so that the end part of the cotton net moves to one side of the sliding plate 55 on the working plate 4, the sliding plate 55 arranged at the moment can limit the cotton net, the distance between the sliding plate 55 and the cutter 53 is the length of the cotton net to be sheared, when the cotton net is sheared, the controller controls the first push rod 13 to drive the sliding plate 55 at the bottom end of the shearing plate 5 to move downwards, the sliding plate 55 at the bottom end applies pressure to the spring to drive the connecting rod 64 to slide into the connecting groove 63 when moving downwards, so that the first pressing plate 56 at one side of the sliding plate 55 moves to the end part of the cotton net at the bottom end and extrudes and fixes the end part of the cotton net, and simultaneously, the shearing plate 5 drives the second pressing plate 57 at the other end to extrude and fix the other end of the cotton net, thereby, then, the second push rod 52 pushes the cutter 53 to cut the cotton net at the bottom, so that the sliding of two ends of the cotton net is reduced when the shearing device works, the shearing precision of the shearing device is improved, and the arranged collecting box 12 can collect the sheared cotton net; and when the shearing length of cotton web needs to be adjusted, slide 62 of ball screw department on the carousel 61 drive bull stick through rotating this moment, slide 62 drives the slide 55 at top in sliding chamber 54 through alternating at the inside connecting rod 64 of spread groove 63 and slides this moment, thereby make the cutting distance between slide 55 side and the cutter 53 carry out effectual control, convenient and fast's while, can adjust the cutting length of cotton web at will, thereby the convenience and the practicality of shearing mechanism during operation have been increased.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A combed cotton net shearing device comprises a working box (1), a feeding plate (2) and a supporting frame (3), wherein the feeding plate (2) is installed on one side of the working box (1), and the supporting frame (3) is located at the bottom end of the working box (1); the method is characterized in that: the side surface of the working box (1) is provided with a feeding hole (11) along the extending direction of the feeding plate (2), the bottom end of the side surface of the working box (1) opposite to the feeding plate (2) is provided with a collecting box (12), the inside of the working box (1) where the feeding hole (11) is located is provided with a working plate (4), the top end inside the working box (1) is provided with a first push rod (13), the bottom of the first push rod (13) is connected with a shear plate (5), the bottom end of the middle part of the shear plate (5) is provided with a shear groove (51), the top surface inside the shear groove (51) is provided with a second push rod (52), the bottom end of the second push rod (52) is connected with a cutter (53), the bottom end of one side of the shear plate (5) close to the collecting box (12) is provided with a sliding cavity (54), the inside of the sliding cavity (54) is slidably connected with a, a sliding groove (41) is formed in the working plate (4) at the bottom end of the sliding plate (55), the bottom end of the sliding plate (55) extends into the sliding groove (41), a rotating shaft (6) is in threaded connection with the working box (1) at the bottom end of the sliding plate (55), a rotating disc (61) is connected to the outer end of the rotating shaft (6), a ball screw is arranged at the position, corresponding to the sliding plate (55), of the inner end of the rotating shaft (6), a sliding block (62) is connected to the ball screw in a sliding mode, connecting grooves (63) are symmetrically formed in the top end of the sliding block (62), a connecting rod (64) is arranged on the bottom surface of the sliding plate (55) corresponding to the top end of each connecting groove (63), the bottom end of each connecting rod (64) is located inside each connecting groove (63) and can freely slide inside; the bottom end of one side, close to the feeding plate (2), of the shearing plate (5) is connected with a second pressing plate (57); the automatic control device is characterized in that a controller is arranged in the working box (1), and the controller is used for controlling the automatic operation of the device.

2. A combing web shearing device according to claim 1, characterised in that: one side of the bottom end of the sliding plate (55) close to the cutter (53) is provided with an extrusion groove (551), the extrusion groove (551) is connected with an extrusion plate (552) in a sliding mode, the inner end of the extrusion plate (552) is connected with the inner end face of the extrusion groove (551) through a spring, a support cavity (42) is formed in the working plate (4) at the bottom end of the cutter (53), a support groove (43) is formed in the side wall, close to the extrusion plate (552), of the support cavity (42), a first arc-shaped support rod (44) is hinged inside the support groove (43), one end, close to the extrusion plate (552), of the first support rod (44) extends into the sliding groove (41), the other end of the first support rod (44) is connected with a support plate (45), and a cutting opening (46) is formed in the position, corresponding to the bottom end of the cutter (53.

3. A combing web shearing device according to claim 1, characterised in that: no. two clamp plate (57) tops link to each other with No. two push rod (52), be provided with on working plate (4) of No. two clamp plate (57) bottoms and compress tightly groove (7), it has latch segment (71) to compress tightly inside sliding connection of groove (7), link to each other with the spring between latch segment (71) bottom and the groove (7) bottom surface that compresses tightly, it is provided with locking groove (72) that communicate with it on being close to the lateral wall that supports chamber (42) to compress tightly groove (7), inside articulated No. two bracing pieces (73) that have of locking groove (72), No. two bracing pieces (73) are close to the one end that compresses tightly groove (7) and stretch into to compressing tightly inside groove (7)), No. two bracing piece (73) other ends are located the bottom of backup pad (45).

4. A combing web shearing device according to claim 3, characterized in that: the top surface of the locking block (71) is flush with the upper plane of the working plate (4) in a natural state, and the distance from the bottom end of the second pressing plate (57) to the working plate (4) is greater than the distance from the bottom end of the first pressing plate (56) to the working plate (4).

5. A combing web shearing device according to claim 4, characterised in that: the opening shapes of the locking block (71) and the pressing groove (7) are respectively set to be in a table shape, and the top end of the opening of the pressing groove (7) and the edge of the working plate (4) are set to be in circular arc transition.

6. A combing web shearing device according to claim 1, characterised in that: the rotary table is characterized in that a reference block is arranged on the rotary table (61), and scale marks which are uniformly distributed in an annular mode are arranged on the side face, close to the rotary table (61), of the working box (1).