CN117644240A - Hand-changing type full-automatic tailing processing device and processing method - Google Patents

Abstract

The invention discloses a hand-changing type full-automatic tailing processing device and a processing method, and relates to the technical field of section bar cutting, wherein the processing device comprises a machine tool body, and the machine tool body comprises a plurality of processing units which are sequentially arranged: the device comprises a feeding part, a cutting part and a hand-changing part, wherein the feeding part is used for conveying a section to be cut towards a cutting end along a feeding direction after positioning and fixing the section, the cutting part is used for cutting the section conveyed to the cutting end, and the hand-changing part is used for conveying a section tailing after positioning and fixing the section; compared with the prior art that only the feeding part is arranged to convey the section bar, the section bar tailing feeding device can automatically feed and cut the section bar tailing part, does not need to manually feed the tailing, reduces labor cost and improves section bar cutting efficiency.

Description

Hand-changing type full-automatic tailing processing device and processing method

Technical Field

The invention relates to the technical field of section bar cutting, in particular to a hand-changing type full-automatic tailing processing device and a processing method.

Background

The profile cutting is a relatively wide basic material preparation process no matter building materials or basic manufacturing industry, the traditional domestic long-strip profile cutting machine is subjected to original manual feeding, manual dragging and feeding and manual pulling of a lever to drive a cutting head to cut, and the manual feeding, automatic feeding, manual intervention of tailing and automatic driving of the cutting head to cut are achieved, so that the evolution from full manual operation to semi-automatic operation is achieved, but because the tailing needs manual intervention, the labor intensity is simply reduced, and the effect of reducing the number of operators cannot be achieved.

The profile cutting machine in the prior art consists of a machine base, clamping clamps and a swinging type cutting power head, has high labor intensity during operation, and is still the main power type of workshop type enterprises and partial small enterprises due to low cost; the semiautomatic section bar cutting machine is the first choice for equipment upgrading and real enterprises because the labor intensity of workers can be reduced;

however, in the practical application process, as only one group of feeding clamps is arranged, the last section (containing the stub bar) of the section bar cannot automatically complete cutting, and the tailing is required to be manually moved to the cutting end for cutting, the manpower use is not substantially reduced as a whole, and the automation degree is still insufficient.

Disclosure of Invention

The invention aims to provide a hand-changing type full-automatic tailing processing device and a processing method, which solve the following technical problems:

for the last section (containing the stub bar) of the section bar, the cutting cannot be automatically completed, the tailing is required to be manually moved to the cutting end for cutting, the manpower use is not reduced substantially as a whole, and the degree of automation is still insufficient.

The aim of the invention can be achieved by the following technical scheme:

the utility model provides a full-automatic tail processing apparatus of hand change formula, includes the lathe body, including laying in proper order on the lathe body:

the feeding part is used for conveying the section to be cut towards the cutting end along the feeding direction after positioning and fixing the section to be cut, and

a cutting part for cutting the profile delivered to the cutting end, an

The hand-changing part is used for conveying the section bar tailing to the cutting end after being positioned and fixed.

Preferably, the feeding part comprises feeding clamps symmetrically arranged on the machine tool body, the feeding clamps are slidably arranged on the feeding box, a first driving piece is arranged in the feeding box and used for driving the feeding clamps on two sides to synchronously approach towards the inner side or separate away from the outer side.

Preferably, the feeding part further comprises a second driving piece arranged on the machine tool body, and the second driving piece is connected with the feeding box body and used for driving the feeding box body to move along the length direction of the machine tool body.

Preferably, the cutting part comprises a cutting knife arranged on the machine tool body, a housing is sleeved on the cutting knife, and a cutting motor fixed with the cutting knife is fixedly arranged on one side of the housing;

the machine tool comprises a machine tool body, a cutting knife and a cover shell, wherein the machine tool body is further provided with a lifting box body, a third driving piece connected with the cover shell is arranged in the lifting box body, and the third driving piece is used for driving the cutting knife to approach or be far away from the cutting end in the direction of the cutting end.

Preferably, the cutting part further comprises a positioning box body fixedly arranged on the machine tool body, the positioning box body is symmetrically and slidingly provided with two groups of cutting clamps, the two groups of cutting clamps are connected with a fourth driving piece arranged in the positioning box body, and the fourth driving piece is used for driving the cutting clamps at two sides to synchronously approach towards the inner side or separate away from the outer side.

Preferably, the hand-changing part comprises a hand-changing box body arranged on the machine tool body, hand-changing clamps are symmetrically arranged on the hand-changing box body, and a fifth driving piece connected with the hand-changing clamps at two sides is arranged in the hand-changing box body and used for driving the hand-changing clamps at two sides to synchronously approach towards the inner side or keep away from the outer side.

Preferably, a sixth driving piece connected with the hand-changing box body is further arranged on the machine tool body, and the sixth driving piece is used for driving the feeding box body to move along the length direction of the machine tool body.

Preferably, the first driving piece, the fourth driving piece and the fifth driving piece comprise screws which are rotatably arranged in the box body, the end parts of the screws are fixed with the output end of the driving motor, and the threads on the two sides of the screws are opposite in rotation direction;

the screw rod is symmetrically and spirally sleeved with nuts, and the nuts penetrate through the sliding grooves and are fixed with the corresponding clamps.

Preferably, the first driving piece, the fourth driving piece and the fifth driving piece comprise gears which are rotatably arranged in the box body, the gears are fixed with the output end of the motor equipment, racks which are synchronously meshed with the gears are arranged on two sides of the gears in a parallel and staggered mode, and the racks on two sides of the gears are respectively fixed with corresponding clamps by penetrating through the sliding grooves through connecting rods.

Preferably, the method comprises the following steps:

the section bar is embedded between the two groups of feeding clamps, and the feeding clamps at the two sides are driven to be close to each other by the first driving piece so as to position and fix the section bar;

the second driving piece drives the feeding box body to move towards the cutting end direction so as to enable the section bar to move to the cutting end;

the cutting motor drives the cutting knife to rotate, the cutting knife is driven to move towards the direction of the profile by the third driving piece, and the cutting knife performs segmentation treatment on the profile in the rotating process;

when the section is cut to the residual tailing part, the cutting clamp is loosened, and the feeding clamp positions and fixes the tailing and then performs feeding action;

the fifth driving piece drives the two-side hand-changing clamps to synchronously face the inner side to be close to the position fixing of the tailings, and the feeding clamp is loosened and reset;

the sixth driving piece drives the hand-changing box body to move towards the direction far away from the cutting end so as to enable the end part of the tailing to be conveyed to the cutting end, and then the tailing is positioned and fixed through the cutting clamp and then subjected to cutting treatment;

the cut stub bar and the cut material are pushed to a receiving chute rail by the next material for collection.

The invention has the beneficial effects that:

(1) According to the invention, firstly, the section bar to be cut is positioned and fixed through the feeding part and then is conveyed to the cutting end along the feeding direction, when the section bar is conveyed to the cutting end, the section bar is subjected to cutting treatment through the cutting part, when the section bar is cut to the residual tail material, the feeding part stops positioning and conveying the tail material, and the section bar tail material is conveyed to the cutting end for cutting through the hand-changing part, compared with the prior art that the section bar is conveyed only through the feeding part, the section bar cutting machine can automatically realize feeding and cutting of the section bar tail material part, the feeding operation of the tail material does not need to be manually carried out, the labor cost is reduced, and the section bar cutting efficiency is improved;

(2) The change of the clamping cross section shape of the clamp disclosed by the invention can be respectively suitable for single cutting and multiple simultaneous cutting of pipes, bars and special-shaped sectional materials, the feeding part can be connected with an automatic feeding frame to realize automatic feeding, the discharging end of the switching part can be connected with on-line detection and subsequent processing procedures to realize lean stream production, the rapid switching of products can be realized when a cutting object is replaced, and the clamp conforms to the rapid switching capability which is urgent for the manufacturing industry to cope with the small-batch production of multiple varieties and has very good application benefits.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a full-automatic tail handling device with a hand-change mechanism according to the present invention;

FIG. 2 is a schematic view of the structure of a cutting end of a full-automatic tail stock handling device according to the present invention;

FIG. 3 is a schematic view of the structure of a screw in a full-automatic handchange type tailing processing apparatus according to the present invention;

FIG. 4 is a schematic view of the structure of a gear in a full-automatic tail stock handling device with a hand-change function according to the present invention;

FIG. 5 is a schematic diagram showing a structure of a full-automatic tail stock processing apparatus according to the present invention during tail stock cutting;

fig. 6 is a schematic diagram II of a structure of the invention when the tail of the hand-changing type full-automatic tail material processing device is cut.

In the figure: 1. a machine tool body; 2. a feeding box body; 3. positioning a box body; 4. a cutting knife; 5. a handoff box; 6. a driving motor; 7. a gear; 101. a mounting frame; 102. a slide rod; 201. a first chute; 202. a feeding clamp; 203. a second driving member; 301. a second chute; 302. cutting pliers; 303. a knife slot; 401. a housing; 402. a cutting motor; 403. lifting the box body; 501. a third chute; 502. a sixth driving member; 503. a hand-changing clamp; 601. a screw; 602. a nut; 701. a rack.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.

Example 1

Referring to fig. 1-2, the invention discloses a full-automatic tail material processing device with a hand-changing function, which comprises a machine tool body 1, wherein a feeding part, a cutting part and a hand-changing part are sequentially arranged on the machine tool body 1;

specifically, in this embodiment, the feeding portion is configured to position and fix a section to be cut and then convey the section to be cut toward the cutting end along the feeding direction;

the cutting part is used for cutting the section bar conveyed to the cutting end;

the hand-changing part is used for conveying the profile tailing to the cutting end after positioning and fixing;

it can be stated that, in this embodiment, firstly, the section bar to be cut is fixed by the feeding portion and then is conveyed to the cutting end along the feeding direction, when the section bar is conveyed to the cutting end, the section bar is cut by the cutting portion, when the section bar is cut to the residual tailing, the feeding portion stops conveying the tailing by the positioning, and the section bar tailing is conveyed to the cutting end by the switching portion for cutting, compared with the section bar is conveyed by the feeding portion in the prior art, the section bar cutting device can automatically realize feeding and cutting of the section bar tailing portion, and does not need to manually carry out feeding operation of the tailing, thereby reducing labor cost and improving section bar cutting efficiency;

it should be noted that the specific structure of the profile is not limited in this embodiment, and includes, but is not limited to, single cutting and multiple simultaneous cutting of pipes, bars, and profiled profiles.

Example 2

On the basis of embodiment 1, referring to fig. 1-2, the feeding part comprises feeding clamps 202 symmetrically arranged on the machine tool body 1, the feeding clamps 202 are slidably arranged on the feeding box body 2, and a first driving member is arranged in the feeding box body 2 and is used for driving the feeding clamps 202 on two sides to synchronously approach towards the inner side or separate from the outer side; it can be noted that when the profile is conveyed and fed, the first driving piece drives the feeding clamps 202 at two sides to be far away from each other, then the profile is embedded between the two groups of feeding clamps 202, and the second driving piece drives the feeding clamps 202 at two sides to be close to each other so as to fix the profile;

the feeding part further comprises a second driving piece 203 which is arranged on the machine tool body 1, and the second driving piece 203 is connected with the feeding box body 2 and is used for driving the feeding box body 2 to move along the length direction of the machine tool body 1; it may be noted that, after the profile is positioned and fixed by the feeding clamp 202, the second driving member 203 drives the feeding box 2 to move toward the cutting end, so as to move the profile to the cutting end;

in addition, after the section bar is cut, the first driving piece drives the feeding clamp 202 to be far away from each other, then the second driving piece 203 drives the feeding box 2 to move towards the direction far away from the cutting end and reset to the original point, and then the first driving piece drives the feeding clamp 202 again to fix the section bar, and the cutting operation is continuously repeated, so that the equidistant cutting of the section bar can be realized.

The cutting part comprises a cutting knife 4 arranged on the machine tool body 1, a housing 401 is sleeved on the cutting knife 4, a cutting motor 402 fixed with the cutting knife 4 is fixedly arranged on one side of the housing 401, wherein a lifting box 403 is also arranged on the machine tool body 1, a third driving piece connected with the housing 401 is arranged in the lifting box 403, and the third driving piece is used for driving the cutting knife 4 to approach or depart from the direction of a cutting end; specifically, the cutter 4 in the present embodiment is a circular cutter; in practical application, the cutting knife 4 is driven to rotate by the cutting motor 402, and then the cutting knife 4 is driven to move towards the direction of the profile by the third driving piece, and the cutting knife 4 performs cutting treatment on the profile in the rotating process;

the cutting part further comprises a positioning box body 3 fixedly arranged on the machine tool body 1, two groups of cutting clamps 302 are symmetrically and slidingly arranged on the positioning box body 3, the two groups of cutting clamps 302 are connected with a fourth driving piece arranged in the positioning box body 3, and the fourth driving piece is used for driving the cutting clamps 302 at two sides to synchronously approach towards the inner side or separate from the outer side; it can be noted that when the feeding portion conveys the profile to the cutting end, the fourth driving piece drives the cutting clamps 302 at two sides to synchronously move towards the inner side so as to realize positioning and fixing of the profile, and then drives the cutting knife 4 to cut the profile, in the embodiment, when the profile is divided, the cutting clamps 302 are used for clamping and fixing, so that stability in cutting is improved;

as a further scheme of the embodiment, knife slots 303 are formed between two groups of cutting clamps 302; when the cutter 4 cuts the profile, the cutter 4 is inserted into the pocket 303 to perform the feeding operation.

Referring to fig. 5-6, the hand-changing portion includes a hand-changing box 5 disposed on the machine tool body 1, hand-changing clamps 503 are symmetrically disposed on the hand-changing box 5, and a fifth driving member connected to the hand-changing clamps 503 on both sides is disposed in the hand-changing box 5, where the fifth driving member is used for driving the hand-changing clamps 503 on both sides to synchronously approach toward the inner side or to separate toward the outer side; it may be noted that, when the section is cut to the remaining tailing part, the cutting clamp 302 is loosened, the feeding clamp 202 performs feeding action after positioning and fixing the tailing, and then the fifth driving part drives the two side hand-changing clamps 503 to approach to the inner side synchronously, so that positioning and fixing of the tailing can be realized;

in this embodiment, a sixth driving member 502 connected to the hand-changing box 5 is further disposed on the machine tool body 1, and the sixth driving member 502 is used for driving the feeding box 2 to move along the length direction of the machine tool body 1; it may be noted that, after the tailings are positioned and fixed by the hand-changing clamp 503, the hand-changing box 5 is driven by the sixth driving member 502 to move in a direction away from the cutting end, so that the end of the tailings is conveyed to the cutting end, and then the tailings are positioned and fixed by the cutting clamp 302 and then subjected to cutting treatment;

in addition, the cut stub bar and the cut material are pushed by the next piece of material to the receiving chute rail for collection.

In this embodiment, the second driving member 203, the third driving member and the sixth driving member 502 adopt driving cylinders or hydraulic cylinders;

as another embodiment, the second driving member 203, the third driving member and the sixth driving member 502 may also adopt a screw transmission mechanism or a synchronous belt transmission mechanism, which is not limited in this embodiment, so as to be capable of driving the feeding box 2 and the hand changing box 5 to move along the length direction of the machine tool body 1 and driving the cutting knife 4 to approach or separate from the direction of the cutting end, which is not limited in this embodiment;

the feeding box body 2 is provided with a first chute 201, the positioning box body 3 is provided with a second chute 301, and the hand-changing box body 5 is provided with a third chute 501;

in one implementation of the present embodiment:

referring to fig. 3-4, the first driving member, the fourth driving member and the fifth driving member include a screw 601 rotatably disposed in the box, an end of the screw 601 is fixed to an output end of the driving motor 6, threads on two sides of the screw 601 are rotated oppositely, nuts 602 are symmetrically and spirally sleeved on the screw 601, and the nuts 602 pass through the sliding grooves and are fixed to corresponding clamps; it can be noted that when the movement of each clamp is regulated, the screw 601 is driven to rotate by the driving motor 6, the corresponding movement of the clamp can be synchronously driven by the nut 602 in the process of moving on the screw 601, and when the clamp needs to be loosened, the output end of the driving motor 6 reversely rotates;

in another implementation of this embodiment:

the first driving piece, the fourth driving piece and the fifth driving piece comprise gears 7 which are rotatably arranged in the box body, the gears 7 are fixed with the output end of the motor equipment, racks 701 which are synchronously meshed with the gears 7 are arranged on two sides of the gears 7 in parallel in a staggered manner, and the racks 701 on two sides are respectively fixed with corresponding clamps by penetrating through sliding grooves through connecting rods; it may be noted that when adjusting the movement of each clamp, the gear 7 is driven to rotate by the motor device, and the gear 7 is driven to move by being meshed with the rack 701 during the rotation.

In addition, the first driving member, the fourth driving member, and the fifth driving member are not limited to the driving mechanism in the present embodiment, but may be devices such as an air cylinder or a hydraulic cylinder, so as to enable synchronous driving of the two-side clamps toward or away from each other, which is not limited in the present embodiment.

Furthermore, a mounting frame 101 is fixedly arranged on the machine tool body 1, at least one group of guide sliding rods 102 is fixedly arranged on one side of the mounting frame 101, and the feeding box body 2 and the hand changing box body 5 are slidingly arranged on the guide sliding rods 102; specifically, in this embodiment, the guiding sliding rod 102 is provided to guide the feeding box 2 and the hand-changing box 5, so as to further improve the stability of the feeding box 2 and the hand-changing box during movement.

It should be further noted that, the cross-sectional shape of each clamp in this embodiment may be set based on the shape of the profile, which is not limited, and meanwhile, the feeding portion may be connected with the automatic feeding frame to realize automatic feeding, and the discharging end of the replacing portion may be connected with on-line detection and subsequent processing procedures to realize lean stream production;

in addition, each driving piece is connected with a servo control device, and each driving piece is mutually independent and is automatically controlled by the servo control device.

A processing method of a hand-changing type full-automatic tailing processing device comprises the following steps:

the section bar is embedded between the two groups of feeding clamps 202, and the feeding clamps 202 at two sides are driven to be close to each other by the first driving piece so as to position and fix the section bar;

the second driving member 203 drives the feeding box 2 to move toward the cutting end direction so as to move the profile to the cutting end;

the cutting motor 402 drives the cutting knife 4 to rotate, the cutting knife 4 is driven to move towards the direction of the profile by the third driving piece, and the cutting knife 4 performs cutting treatment on the profile in the rotating process;

when the section is cut to the residual tailing part, the cutting clamp 302 is loosened, and the feeding clamp 202 positions and fixes the tailing and then performs feeding action;

the fifth driving part drives the two-side hand-changing clamp 503 to synchronously move towards the inner side to locate and fix the tailings, and the feeding clamp 202 is loosened and reset;

the sixth driving piece 502 drives the hand-changing box body 5 to move in a direction away from the cutting end so as to enable the end part of the tailings to be conveyed to the cutting end, and then the tailings are positioned and fixed through the cutting clamp 302 and then subjected to cutting treatment;

the cut stub bar and the cut material are pushed to a receiving chute rail by the next material for collection.

In the description of the present invention, it should be understood that the terms "upper," "lower," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and for simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, as well as a specific orientation configuration and operation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; 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.

The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.

Claims (10)

1. The utility model provides a full-automatic tail processing apparatus of hand change formula, includes lathe body (1), its characterized in that, including laying in proper order on lathe body (1):

the feeding part is used for conveying the section to be cut towards the cutting end along the feeding direction after positioning and fixing the section to be cut, and

a cutting part for cutting the profile delivered to the cutting end, an

The hand-changing part is used for conveying the section bar tailing to the cutting end after being positioned and fixed.

2. The full-automatic tailing processing device capable of changing hands according to claim 1, wherein the feeding part comprises feeding clamps (202) symmetrically arranged on the machine tool body (1), the feeding clamps (202) are slidably arranged on a feeding box body (2), a first driving piece is arranged in the feeding box body (2), and the first driving piece is used for driving the feeding clamps (202) on two sides to synchronously approach towards the inner side or separate from the outer side.

3. The full-automatic tailing processing device according to claim 2, wherein the feeding portion further comprises a second driving member (203) arranged on the machine tool body (1), and the second driving member (203) is connected with the feeding box body (2) for driving the feeding box body (2) to move along the length direction of the machine tool body (1).

4. The hand-changing type full-automatic tailing processing device according to claim 2, wherein the cutting part comprises a cutting knife (4) arranged on a machine tool body (1), a housing (401) is sleeved on the cutting knife (4), and a cutting motor (402) fixed with the cutting knife (4) is fixedly arranged on one side of the housing (401);

the machine tool comprises a machine tool body (1), and is characterized in that a lifting box body (403) is further arranged on the machine tool body (1), a third driving piece connected with a housing (401) is arranged in the lifting box body (403), and the third driving piece is used for driving a cutting knife (4) to approach or separate from the cutting end in the direction of the cutting end.

5. The full-automatic tailing processing device capable of changing hands according to claim 4, wherein the cutting part further comprises a positioning box body (3) fixedly arranged on the machine tool body (1), two groups of cutting clamps (302) are symmetrically and slidingly arranged on the positioning box body (3), the two groups of cutting clamps (302) are connected with a fourth driving piece arranged in the positioning box body (3), and the fourth driving piece is used for driving the cutting clamps (302) at two sides to synchronously approach towards the inner side or separate from the outer side.

6. The full-automatic handpieces handling device according to claim 4, wherein the handpieces comprise a handpieces box body (5) arranged on the machine tool body (1), the handpieces (503) are symmetrically arranged on the handpieces box body (5), a fifth driving piece connected with the handpieces (503) is arranged in the handpieces box body (5), and the fifth driving piece is used for driving the handpieces (503) on both sides to synchronously approach towards the inner side or separate away from the outer side.

7. The hand-changing type full-automatic tailing processing device according to claim 6, wherein a sixth driving piece (502) connected with the hand-changing box body (5) is further arranged on the machine tool body (1), and the sixth driving piece (502) is used for driving the feeding box body (2) to move along the length direction of the machine tool body (1).

8. The full-automatic tailing processing device according to claim 6, wherein the first driving member, the fourth driving member and the fifth driving member comprise screw rods (601) rotatably arranged in the box body, the end parts of the screw rods (601) are fixed with the output ends of the driving motors (6), and threads on two sides of the screw rods (601) are opposite in rotation direction;

the screw (601) is symmetrically and spirally sleeved with a nut (602), and the nut (602) passes through the chute to be fixed with the corresponding clamp.

9. The full-automatic tailing processing device capable of changing hands according to claim 8, wherein the first driving piece, the fourth driving piece and the fifth driving piece comprise gears (7) which are rotatably arranged in the box body, the gears (7) are fixed with the output end of the motor equipment, racks (701) which are synchronously meshed with the gears (7) are arranged on two sides of the gears (7) in parallel in a staggered mode, and the racks (701) on two sides are respectively fixed with corresponding clamps through connecting rods penetrating through sliding grooves.

10. A method of handling a full-automatic, hand-exchanged tail handling device according to claim 9, comprising the steps of:

the section bar is embedded between two groups of feeding clamps (202), and the feeding clamps (202) at two sides are driven to be close to each other by a first driving piece so as to position and fix the section bar;

the second driving piece (203) drives the feeding box body (2) to move towards the cutting end so as to enable the section bar to move to the cutting end;

the cutting motor (402) drives the cutting knife (4) to rotate, the cutting knife (4) is driven to move towards the direction of the profile by the third driving piece, and the cutting knife (4) performs cutting treatment on the profile in the rotating process;

when the section is cut to the residual tailing part, the cutting clamp (302) is loosened, and the feeding clamp (202) positions and fixes the tailing and then performs feeding action;

the fifth driving part drives the two-side hand-changing clamp (503) to synchronously move towards the inner side to be close to the position and fix the tailings, and the feeding clamp (202) is loosened and reset;

the sixth driving piece (502) drives the hand-changing box body (5) to move towards a direction far away from the cutting end so as to enable the end part of the tailings to be conveyed to the cutting end, and then the tailings are subjected to cutting treatment after being positioned and fixed through the cutting clamp (302);

the cut stub bar and the cut material are pushed to a receiving chute rail by the next material for collection.