CN117301239A

CN117301239A - Fly cutter roller with reversing anti-collision function

Info

Publication number: CN117301239A
Application number: CN202311253208.XA
Authority: CN
Inventors: 满浩; 满成河; 黄允欢; 巩磊; 王光明; 陈文静; 吕晶
Original assignee: Shandong Daxing Roller Shaft Manufacturing Co ltd
Current assignee: Shandong Daxing Roller Shaft Manufacturing Co ltd
Priority date: 2023-09-26
Filing date: 2023-09-26
Publication date: 2023-12-29

Abstract

The invention discloses a fly cutter roller with a reverse anti-collision function, and relates to the technical field of accessories of chippers, comprising a fly cutter roller body, wherein blades are fixedly connected to the outer peripheral wall of the fly cutter roller body; the fly cutter roller body is arranged in the shell in a rotating way, the inner wall of the shell is provided with a groove for the fly cutter roller body to horizontally slide, the inside of the shell is fixedly connected with a bidirectional motor, the bidirectional motor is used for driving the fly cutter roller body to rotate, one side of the shell is provided with a feeding shell, the feeding shell is used for feeding wood, the blade is fixedly arranged on the fly cutter roller body, the mounting effect is stable, the situation that the blade is blocked by the linear translation and the reverse rotation of the fly cutter roller body is avoided, the cutting of the wood part which cannot be cut can be performed in real time, the blade is convenient for continuously cutting the wood, the shutdown operation is not needed, and the wood processing efficiency is stable and rapid.

Description

Fly cutter roller with reversing anti-collision function

Technical Field

The invention relates to the technical field of chipper accessories, in particular to a fly cutter roller with a reverse anti-collision function.

Background

The chipper is also called a wood slicer, belongs to one of wood processing series equipment, is widely applied to a material preparation section in the production process of industries such as textile, papermaking, pulping, artificial boards and the like, when the chipper chips materials such as wood and the like, once the fly cutter is clamped in the middle of the materials such as wood and the like, the motor can not rotate, the motor can be burnt when the fly cutter forcibly rotates for a long time, in general, the fly cutter can be withdrawn through the reverse rotation of the motor, and when the fly cutter roller body drives the fly cutter to reversely rotate, the rear fly cutter reversely contacts with the surface of the wood, so that fly cutter damage is easy to cause.

Chinese patent with publication No. CN114311187a discloses a chipper fly cutter roller and fly cutter with reverse anti-collision function, including roll body mechanism, roll body mechanism's inside joint has fly cutter mechanism, use fixed establishment to carry out spacingly between roll body mechanism and the fly cutter mechanism, roll body mechanism includes the cutter roller main part, the surface fixedly connected with connecting axle of cutter roller main part, fixedly connected with knife rest between the cutter roller main part, the protection slot has been seted up to one side of knife rest. This chipper fly cutter roller and fly cutter with reversal anticollision function is through seting up the protection slot on the knife rest to set up the elastic component in the protection slot, cooperate the tool bit through protection slot and connecting block simultaneously and spacing, and cooperate whole fly cutter mechanism through threaded rod and spacing groove spacing, when the knife roller main part is reversed, can shrink backward after tool bit and timber contact pressurized in order to reduce the striking dynamics, reached the effect of protection fly cutter.

However, the following problems are also present in the above patents: when the elastic piece is used for fixing the cutter head, the firmness of the cutter head is not strong, the cutter head is always in an unstable state when slicing wood, the slicing effect is unstable, and after the cutter head is reversed, the wood position needs to be manually adjusted, so that the wood part clamped with the cutter head can be deflected, and then the wood slicing work can be continued.

Disclosure of Invention

The invention aims to provide a fly cutter roller with a reverse anti-collision function, so as to solve the problems in the background art.

The technical scheme of the invention is as follows: a fly roll with reverse anti-collision function, comprising:

the fly cutter roller body is fixedly connected with a blade on the peripheral wall of the fly cutter roller body;

the fly cutter roller comprises a shell, wherein the fly cutter roller body is rotatably arranged in the shell, a groove for the fly cutter roller body to horizontally slide is formed in the inner wall of the shell, a bidirectional motor is fixedly connected in the shell and used for driving the fly cutter roller body to rotate, a feeding shell is arranged on one side of the shell and used for feeding wood;

the supporting components are in two groups and are rotationally connected with the fly cutter roller body, the supporting components comprise a connecting rod and a screw rod component, one end of the connecting rod is rotationally connected with the peripheral wall of the fly cutter roller body, the other end of the connecting rod is connected with the screw rod component, the screw rod component is fixed in the shell, and the screw rod component is used for driving the connecting rod to linearly reciprocate;

the transmission mechanism is used for connecting the screw rod assembly with the bidirectional motor;

the hydraulic rod is fixed on the inner wall of the shell, and the bottom of the hydraulic rod is fixedly connected with a cutter.

Preferably, the shell is also symmetrically and fixedly connected with two L-shaped plates, and the bottom of each L-shaped plate is elastically connected with a polishing plate.

Preferably, the chain wheels which are symmetrically arranged are connected to the two sides of the fly cutter roller body, the chain wheels are fixedly connected to the output shaft of the bidirectional motor, and the two chain wheels on the same side are connected through a chain.

Preferably, the feeding shell bilateral symmetry sets up tensioning assembly, every side tensioning assembly all includes the installation shell, installation shell middle part fixedly connected with diaphragm, diaphragm bilateral symmetry is provided with the spring, spring end fixedly connected with conflict piece, the spacing groove has been seted up in the installation shell, spacing inslot internal rotation is connected with two take-up pulleys, the take-up pulley is contradicted with the conflict piece of corresponding side, the take-up pulley carries out chain connection with the chain.

Preferably, the screw rod assembly comprises a screw rod and a screw rod sleeve, one end of the screw rod is rotatably arranged on the side wall of the shell, the screw rod sleeve is in threaded connection with the screw rod, the connecting rod is fixedly connected with the side wall of the screw rod sleeve, the connecting rod is far away from one end of the screw rod sleeve, sliding grooves are symmetrically formed in two sides of the fly cutter roller body, the sliding blocks are slidably clamped in the sliding grooves, and the screw rod is connected with the bidirectional motor through a transmission mechanism.

Preferably, the transmission mechanism comprises a first bevel gear and a second bevel gear, the first bevel gear and the second bevel gear are rotatably arranged on the inner wall of the shell, the first bevel gear is meshed with the second bevel gear and connected with a connecting shaft fixedly connected with one end of the first bevel gear, a clutch sleeve is sleeved on the connecting shaft, a clutch assembly is arranged in the clutch sleeve, the clutch sleeve is connected with the connecting shaft through the clutch assembly, the clutch sleeve is connected with the bidirectional motor in a chain mode, the second bevel gear is fixedly connected with one screw rod, and the second bevel gear is connected with the other screw rod in a chain mode.

Preferably, the clutch assembly comprises a plurality of clutch blocks and a plurality of clutch grooves, all the clutch blocks are elastically arranged on the inner peripheral wall of the clutch sleeve, and the clutch grooves are formed in the outer peripheral wall of the connecting shaft.

Preferably, the fly cutter roller body is provided with a mounting groove, and the blade is fixed in the mounting groove through a bolt.

Preferably, a plurality of driving rollers are arranged below the feeding shell, and a plurality of spurs are fixedly connected to the peripheral wall of the driving rollers.

Preferably, the shell is provided with a blanking groove.

Compared with the prior art, the fly cutter roller with the reverse anti-collision function provided by the invention has the following improvements and advantages:

the method comprises the following steps: according to the invention, the blades are fixedly arranged on the fly cutter roller body, the installation effect is stable, the situation that the blades are blocked by the linear translation and the reverse rotation of the fly cutter roller body is avoided, the cutting action of the blades on the wood which cannot be cut can be carried out in real time, the cutting action of the blades on the wood is facilitated, the shutdown operation is not needed, and the wood processing efficiency is stable and rapid.

And two,: according to the invention, when the fly cutter roller body linearly reciprocates, the blade can be contacted with the polishing plate and can be matched with the reverse or forward rotation of the fly cutter roller body to polish on the polishing plate, so that the sharpness of the blade is ensured, the polishing plate can elastically move up and down, the distance change generated by the rotation of the blade is adapted, and meanwhile, the polishing area of the blade can be increased.

And thirdly,: according to the fly cutter, the tensioning wheel can move up and down in a straight line under the action of the spring, and when the fly cutter body moves horizontally and in a straight line, the tensioning wheel moves up and down to ensure the tensioning state of the chain, so that the chain can adapt to the movement of the fly cutter body, and the transmission effect of the bidirectional motor on the fly cutter body is effectively ensured.

Fourth, it is: according to the invention, when wood is chopped, the bidirectional motor is in a continuous rotation state, and when the connecting rod moves to the leftmost side or the rightmost side, the clutch block is elastically separated from the clutch groove, so that the screw rod assembly equipment is prevented from being broken.

Fifth, it is: according to the invention, the plurality of driving rollers are driven to rotate by the rotating motor in the shell, and friction force on wood is increased through the protruding thorns, so that the wood is driven to linearly move, and the wood moves to the lower part of the fly cutter roller body.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of a portion of the overall structure of the present invention;

FIG. 3 is a schematic plan view of the present FIG. 2;

FIG. 4 is a schematic cross-sectional view of an L-shaped plate according to the present invention;

FIG. 5 is a schematic cross-sectional view of a mounting shell of the present invention;

FIG. 6 is an enlarged view at A in FIG. 2;

FIG. 7 is an enlarged view at B in FIG. 2;

FIG. 8 is a schematic cross-sectional view of a clutch sleeve according to the present invention;

FIG. 9 is a schematic cross-sectional view of the driving roller inside the housing of the present invention;

FIG. 10 is a schematic view of the installation of the hydraulic lever in the inner wall of the housing according to the present invention;

FIG. 11 is a schematic plan view of a groove in the present invention.

In the figure: 1. a fly cutter roller body; 101. a blade; 102. a sprocket; 103. a chain; 2. a housing; 201.

an L-shaped plate; 202. polishing the plate; 3. a bi-directional motor; 4. a feed housing; 401. a mounting shell; 402. a cross plate; 403. a spring; 404. a collision block; 405. a limit groove; 406. a tensioning wheel; 5. a connecting rod; 501. a screw rod;

502. a screw rod sleeve; 503. a slide block; 504. a chute; 505. a first bevel gear; 506. a second bevel gear;

507. a connecting shaft; 508. a clutch sleeve; 509. a clutch block; 510. a clutch groove; 6. a driving roller; 601. a spike; 7. discharging groove; 8. a hydraulic rod; 801. a cutter; 9. a groove.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown.

The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 11, an embodiment of the present invention provides a fly cutter roller with a reverse anti-collision function, including: the fly cutter roller body 1, wherein a blade 101 is fixedly connected to the peripheral wall of the fly cutter roller body 1; the fly cutter roller body 1 is rotatably arranged in the shell 2, a groove 9 for the fly cutter roller body 1 to horizontally slide is formed in the inner wall of the shell 2, a bidirectional motor 3 is fixedly connected in the shell 2, the bidirectional motor 3 is used for driving the fly cutter roller body 1 to rotate, a feeding shell 4 is arranged on one side of the shell 2, and the feeding shell 4 is used for feeding wood; the supporting components are in two groups and are rotationally connected with the fly cutter roller body 1, each supporting component comprises a connecting rod 5 and a screw rod component, one end of each connecting rod 5 is rotationally connected with the peripheral wall of the fly cutter roller body 1, the other end of each connecting rod 5 is connected with the screw rod component, the screw rod component is fixed in the shell 2, and the screw rod component is used for driving the connecting rod 5 to linearly reciprocate; the transmission mechanism is used for connecting the screw rod assembly with the bidirectional motor 3; the hydraulic rod 8, the hydraulic rod 8 is fixed on the inner wall of the shell 2, and a cutter 801 is fixedly connected to the bottom of the hydraulic rod 8.

Specific: wood enters from the feeding shell 4 horizontally, the bidirectional motor 3 rotates positively, so that the screw rod assembly and the fly cutter roller body 1 are driven to move, the screw rod assembly drives the connecting rod 5 to move linearly, the connecting rod 5 drives the fly cutter roller body 1 to move towards a shredding area, the fly cutter roller body 1 is ensured to be stably positioned in the shredding area, and the fly cutter roller body 1 drives the fly cutter roller body 1 to rotate positively when the bidirectional motor 3 rotates positively, so that the shredding action of wood is realized;

when the blade 101 is clamped on wood, the bidirectional motor 3 reversely rotates, then the bidirectional motor 3 drives the screw rod assembly to reversely rotate through the transmission mechanism, then the screw rod assembly drives the fly cutter roller body 1 to reset and linearly move through the connecting rod 5, meanwhile, the bidirectional motor 3 drives the fly cutter roller body 1 to reversely rotate, so that the blade 101 reversely rotates out of a wood notch, and the reverse rotation of the blade 101 is matched with the linear movement of reset, so that the fly cutter roller body 1 is flushed out of a wood shredding area, then the hydraulic rod 8 drives the cutter 801 to press down, thereby cutting off the wood, cutting off the part which cannot be shredded by the blade 101, resetting the cutter 801, and finally resetting the fly cutter roller body 1 to continue the shredding work of the wood without stopping operation, thereby improving the shredding efficiency of the wood;

it will be appreciated that: the blade 101 is fixedly arranged on the fly cutter roller body 1, the installation effect is stable, the situation that the blade 101 is blocked by the linear translation and the reverse rotation of the fly cutter roller body 1 is avoided, the wood part which cannot be cut up can be cut off in real time, the blade 101 is convenient for continuously cutting up the wood, the shutdown operation is not needed, and the wood processing efficiency is stable and rapid;

when the bidirectional motor 3 moves forward and the blade 101 is clamped on wood, the bidirectional motor 3 cannot rotate at the moment, the internal current of the bidirectional motor 3 can be changed, and the current sensor is used for detecting the current, so that whether the blade 101 is clamped on the wood or not is determined, then the blade is matched with the PLC intelligent control system to control the bidirectional motor 3 to rotate reversely, and the PLC intelligent control system is used for receiving the information of the current sensor and controlling the bidirectional motor 3 to rotate reversely.

Two L-shaped plates 201 are symmetrically and fixedly connected to the shell 2, and polishing plates 202 are elastically connected to the bottoms of the L-shaped plates 201.

Specific: when the fly cutter roller body 1 moves linearly and reciprocally, the blade 101 contacts with the polishing plate 202, and the blade 101 can perform polishing operation on the polishing plate 202 in cooperation with the reverse or forward rotation of the fly cutter roller body 1, so that the sharpness of the blade 101 is ensured;

referring to fig. 4, the polishing plate 202 can elastically move up and down so as to accommodate a distance change generated by rotation of the blade 101, and also to increase the polishing area of the blade 101.

The fly cutter roller body 1 both sides are connected and are the sprocket 102 that the symmetry set up, also fixedly connected with sprocket 102 on the output shaft of bi-directional motor 3, connect through chain 103 between two sprockets 102 of same side, and bi-directional motor 3 passes through sprocket 102 and chain 103 and drives fly cutter roller body 1 and realize rotating.

The tensioning components are symmetrically arranged on two sides of the feeding shell 4, each side of the tensioning components comprises a mounting shell 401, a transverse plate 402 is fixedly connected to the middle of the mounting shell 401, springs 403 are symmetrically arranged on two sides of the transverse plate 402, abutting blocks 404 are fixedly connected to the ends of the springs 403, limiting grooves 405 are formed in the mounting shell 401, two tensioning wheels 406 are rotationally connected to the limiting grooves 405, the tensioning wheels 406 abut against the abutting blocks 404 on the corresponding side edges, and the tensioning wheels 406 are in chained connection with the chains 103.

Specific: referring to fig. 5, the tensioning wheel 406 can linearly move up and down under the action of the spring 403, and when the fly cutter roller body 1 moves horizontally and linearly, the tensioning state of the chain 103 can be ensured by the up and down movement of the tensioning wheel 406, so that the chain 103 can adapt to the movement of the fly cutter roller body 1, and the transmission effect of the bidirectional motor 3 on the fly cutter roller body 1 can be effectively ensured.

The screw rod assembly comprises a screw rod 501 and a screw rod sleeve 502, one end of the screw rod 501 is rotatably arranged on the side wall of the shell 2, the screw rod sleeve 502 is in threaded connection with the screw rod 501, a connecting rod 5 is fixedly connected with the side wall of the screw rod sleeve 502, one end of the connecting rod 5, which is far away from the screw rod sleeve 502, is fixedly connected with a sliding block 503, sliding grooves 504 are symmetrically formed in two sides of the fly cutter roller body 1, the sliding block 503 is in sliding clamping connection with the sliding grooves 504, and the screw rod 501 is connected with the bidirectional motor 3 through a transmission mechanism.

The transmission mechanism comprises a first bevel gear 505 and a second bevel gear 506, the first bevel gear 505 and the second bevel gear 506 are rotatably arranged on the inner wall of the shell 2, the first bevel gear 505 is connected with the second bevel gear 506 in a meshed mode, one end of the first bevel gear 505 is fixedly connected with a connecting shaft 507, a clutch sleeve 508 is sleeved on the connecting shaft 507, a clutch assembly is arranged in the clutch sleeve 508, the clutch sleeve 508 is connected with the connecting shaft 507 through the clutch assembly, the clutch sleeve 508 is connected with the bidirectional motor 3 in a chain mode, the second bevel gear 506 is fixedly connected with one screw rod 501, the second bevel gear 506 is connected with the other screw rod 501 in a chain mode, and the chain connection is an iron chain and iron chain wheel matched transmission structure.

Specific: the bidirectional motor 3 drives the clutch sleeve 508 to rotate, the clutch sleeve 508 drives the connecting shaft 507 and the first bevel gear 505 to rotate through the clutch assembly, so that the second bevel gear 506 is driven to rotate, the screw rod 501 is driven to rotate positively and negatively, linear reciprocating movement of the connecting rod 5 is realized, the connecting rod 5 drives the fly cutter roller body 1 to synchronously perform linear reciprocating movement, and the connecting rod 5 can ensure that the fly cutter roller body 1 can normally perform rotary motion through the sliding block 503 when the connecting rod 5 collides and pulls the fly cutter roller body 1 to move.

The clutch assembly comprises a plurality of clutch blocks 509 and a plurality of clutch grooves 510, all clutch blocks 509 are elastically arranged on the inner peripheral wall of the clutch sleeve 508, and the plurality of clutch grooves 510 are arranged on the outer peripheral wall of the connecting shaft 507.

Specific: referring to fig. 8, when wood is cut, the bi-directional motor 3 is in a continuous rotation state, and when the link 5 moves to the leftmost or rightmost side, the clutch block 509 is elastically disengaged from the clutch groove 510, so that the clutch sleeve 508 cannot continuously drive the connection shaft 507 to rotate, thereby avoiding collapse of the screw assembly apparatus.

The fly cutter roller body 1 is provided with a mounting groove, the blade 101 is fixed in the mounting groove through a bolt, the blade 101 can be disassembled and assembled through the bolt, and the mounting effect is firm.

A plurality of driving rollers 6 are arranged below the feeding shell 4, a plurality of protruding thorns 601 are fixedly connected to the peripheral wall of the driving rollers 6, the driving rollers 6 are driven to rotate by a rotating motor inside the shell 2, and friction force to wood is increased through the protruding thorns 601, so that the wood is driven to linearly move, and the wood moves to the lower side of the fly cutter roller body 1.

A blanking groove 7 is arranged on the shell 2, and the blanking groove 7 collects chopped timber.

Working principle: the timber enters horizontally from the feeding shell 4, the friction force to the timber is increased through the protruding thorns 601, so that the timber is driven to linearly move, the timber moves below the fly cutter roller body 1, the bidirectional motor 3 rotates positively, the screw rod assembly and the fly cutter roller body 1 are driven to move, the screw rod assembly drives the connecting rod 5 to linearly move, the connecting rod 5 drives the fly cutter roller body 1 to move towards a shredding area, the fly cutter roller body 1 is ensured to be stably positioned in the shredding area, and the fly cutter roller body 1 drives the fly cutter roller body 1 to rotate positively when the bidirectional motor 3 rotates positively, so that the shredding action of the timber is realized;

when blade 101 card is on timber, bi-directional motor 3 counter-rotating, thereby make bi-directional motor 3 drive lead screw subassembly counter-rotating through drive mechanism, afterwards lead screw subassembly drive fly-cutter roller body 1 through connecting rod 5 and reset rectilinear movement, simultaneously bi-directional motor 3 drive fly-cutter roller body 1 counter-rotating, make blade 101 follow timber incision reverse rotation, consequently reverse rotation and the rectilinear movement cooperation that resets of blade 101, can make fly-cutter roller body 1 follow timber shredding area and wash out, see next fig. 10, hydraulic stem 8 drives cutter 801 and pushes down, thereby cut off the operation to timber, thereby cut off the unable partial cutting of blade 101, then cutter 801 resets, finally fly-cutter roller body 1 resets and continues the shredding work of timber, need not the shutdown operation, improve timber shredding efficiency.

The previous description is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein _。

Claims

1. Fly cutter roller with reverse anti-collision function, characterized by comprising:

the fly cutter roller comprises a fly cutter roller body (1), wherein a blade (101) is fixedly connected to the peripheral wall of the fly cutter roller body (1);

the fly cutter roller comprises a shell (2), wherein the fly cutter roller body (1) is rotatably arranged in the shell (2), a groove (9) for the fly cutter roller body (1) to horizontally slide is formed in the inner wall of the shell (2), a bidirectional motor (3) is fixedly connected in the shell (2), the bidirectional motor (3) is used for driving the fly cutter roller body (1) to rotate, a feeding shell (4) is arranged on one side of the shell (2), and the feeding shell (4) is used for feeding wood;

the supporting components are in two groups and are rotationally connected with the fly cutter roller body (1), the supporting components comprise a connecting rod (5) and a screw rod component, one end of the connecting rod (5) is rotationally connected with the peripheral wall of the fly cutter roller body (1), the other end of the connecting rod (5) is connected with the screw rod component, the screw rod component is fixed in the shell (2), and the screw rod component is used for driving the connecting rod (5) to linearly reciprocate;

the transmission mechanism is used for connecting the screw rod assembly with the bidirectional motor (3);

the hydraulic rod (8), the hydraulic rod (8) is fixed on the inner wall of the shell (2), and a cutter (801) is fixedly connected to the bottom of the hydraulic rod (8).

2. The fly roll with reverse anti-collision function according to claim 1, wherein: two L-shaped plates (201) are symmetrically and fixedly connected to the shell (2), and polishing plates (202) are connected to the bottoms of the L-shaped plates (201).

3. The fly roll with reverse anti-collision function according to claim 1, wherein: the fly cutter roller is characterized in that chain wheels (102) which are symmetrically arranged are connected to two sides of the fly cutter roller body (1), the chain wheels (102) are fixedly connected to the output shaft of the bidirectional motor (3), and the two chain wheels (102) on the same side are connected through a chain (103).

4. A fly roll with reverse anti-collision function according to claim 3, wherein: the utility model discloses a feeding shell (4) bilateral symmetry sets up tensioning assembly, every side tensioning assembly all includes installation shell (401), installation shell (401) middle part fixedly connected with diaphragm (402), diaphragm (402) bilateral symmetry is provided with spring (403), spring (403) end fixedly connected with conflict piece (404), limit groove (405) have been seted up in installation shell (401), limit groove (405) internal rotation is connected with two take-up pulleys (406), take-up pulleys (406) are contradicted with conflict piece (404) of corresponding side, take-up pulleys (406) are connected with chain (103) in the chain.

5. The fly roll with reverse anti-collision function according to claim 1, wherein: the screw rod assembly comprises a screw rod (501) and a screw rod sleeve (502), one end of the screw rod (501) is rotationally arranged on the side wall of the shell (2), the screw rod sleeve (502) is in threaded connection with the screw rod (501), the connecting rod (5) is fixedly connected with the side wall of the screw rod sleeve (502), the connecting rod (5) is far away from one end of the screw rod sleeve (502) and is fixedly connected with a sliding block (503), sliding grooves (504) are symmetrically formed in two sides of the fly cutter roller body (1), the sliding blocks (503) are slidably clamped in the sliding grooves (504), and the screw rod (501) is connected with the bidirectional motor (3) through a transmission mechanism.

6. The fly roll with reverse anti-collision function according to claim 5, wherein: the transmission mechanism comprises a first bevel gear (505) and a second bevel gear (506), the first bevel gear (505) and the second bevel gear (506) are rotatably arranged on the inner wall of the shell (2), the first bevel gear (505) is connected with the second bevel gear (506) in a meshed mode, one end of the first bevel gear (505) is fixedly connected with a connecting shaft (507), a clutch sleeve (508) is sleeved on the connecting shaft (507), a clutch assembly is arranged in the clutch sleeve (508), the clutch sleeve (508) is connected with the connecting shaft (507) through the clutch assembly, the clutch sleeve (508) is connected with the bidirectional motor (3) in a chained mode, the second bevel gear (506) is fixedly connected with one screw rod (501), and the second bevel gear (506) is connected with the other screw rod (501) in a chained mode.

7. The fly roll with reverse anti-collision function according to claim 6, wherein: the clutch assembly comprises a plurality of clutch blocks (509) and a plurality of clutch grooves (510), all the clutch blocks (509) are elastically arranged on the inner peripheral wall of the clutch sleeve (508), and the clutch grooves (510) are formed in the outer peripheral wall of the connecting shaft (507).

8. The fly roll with reverse anti-collision function according to claim 1, wherein: the fly cutter roller body (1) is provided with a mounting groove, and the blade (101) is fixed in the mounting groove through a bolt.

9. The fly roll with reverse anti-collision function according to claim 1, wherein: a plurality of driving rollers (6) are arranged below the feeding shell (4), and a plurality of spurs (601) are fixedly connected to the peripheral wall of the driving rollers (6).

10. The fly roll with reverse anti-collision function according to claim 1, wherein: a discharging groove (7) is formed in the shell (2).