CN212146766U

CN212146766U - Angle cutter

Info

Publication number: CN212146766U
Application number: CN202020619939.7U
Authority: CN
Inventors: 解锰
Original assignee: Dongguan Mau Fung Machinery Co ltd
Current assignee: Dongguan Mau Fung Machinery Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2020-12-15
Anticipated expiration: 2030-04-22

Abstract

The utility model provides an angle cutting machine, which comprises a frame, be equipped with left base, right base and the actuating mechanism of the relative activity of control left base and right base in the frame, be equipped with left corner cut subassembly on the left base, left corner cut subassembly includes left lower cutter, the left upper cutter that corresponds with left lower cutter and controls the left corner cut drive unit of left upper cutter activity, is equipped with right corner cut subassembly on the right base, and right corner cut subassembly includes right lower cutter, the right upper cutter that corresponds with right lower cutter and controls the right corner cut drive unit of right upper cutter activity, and the lower extreme of left base is equipped with left layer board, the lower extreme of right base is equipped with right layer board, left lower cutter is located left layer board, and right lower cutter is located right layer board, is equipped with left locating plate on the left layer board of left lower cutter, is equipped with right locating plate on the layer board on right lower cutter right side, forms article locating position between left locating plate and the right locating plate. The utility model discloses can improve the positioning accuracy of article, make the corner cut uniformity good, neat pleasing to the eye, efficient, reduction in production cost.

Description

Angle cutter

Technical Field

The utility model relates to a corner cut equipment technical field, concretely relates to corner cutter.

Background

After traditional cards, business cards, books and the like are manufactured, the corners of the cards or the books are right angles and have certain sharpness, and in order to meet the requirements of attractiveness and safety, the right angles need to be trimmed into round angles by using a corner cutting machine. Patent document 2011204207385 discloses a double angle machine is cut to oil pressure, this double angle machine is cut to oil pressure includes the workstation, installs adjustable left and right fixing base on the workstation, installs the left hydro-cylinder of the activity of upper left sword and control upper left sword on the left fixing base, installs the right hydro-cylinder of upper right sword and control upper right sword activity on the right fixing base, still installs left and right lower sword on the workstation, this double angle machine is cut to oil pressure can realize once cutting the double angle work, still has following problem: for the article of the different width of adaptation, before the corner cut, need adjust the position of upper left sword and left lower sword respectively, lead to work efficiency low, high in production cost, simultaneously at the corner cut in-process, left backup plate and right backup plate relatively fixed, distance between left backup plate and the right backup plate need be greater than the width of article just can put into article processing position with article, such structure leads to having the clearance between article and the locating plate all the time, do not fix a position article once more, cause article positioning accuracy low, the corner cut uniformity is poor, it is not pleasing to the eye.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the disappearance that prior art exists, provide a cornering machine, its positioning accuracy that can improve article makes the corner cut uniformity good, and the corner cut is neat pleasing to the eye, improves work efficiency simultaneously, reduction in production cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a corner cutting machine, which comprises a frame, wherein the frame is provided with a left base, a right base and a driving mechanism for controlling the relative movement of the left base and the right base, the left base is provided with a left corner cutting assembly, the left corner cutting assembly comprises a left lower cutter, a left upper cutter corresponding to the left lower cutter and a left corner cutting driving unit for controlling the movement of the left upper cutter, the right base is provided with a right corner cutting component, the right corner cutting component comprises a right lower cutter, a right upper cutter corresponding to the right lower cutter and a right corner cutting driving unit for controlling the right upper cutter to move, the lower end of the left base is provided with a left supporting plate, the lower end of the right base is provided with a right supporting plate, the left lower knife is positioned on the left supporting plate, the right lower knife is positioned on the right supporting plate, the left supporting plate on the left side of the left lower knife is provided with a left positioning plate, and a right positioning plate is arranged on the supporting plate on the right side of the right lower knife, and an article placing position is formed between the left positioning plate and the right positioning plate.

As a preferred scheme, a left accommodating groove is formed in the left supporting plate, the left lower cutter is adjustably installed in the left accommodating groove, a right accommodating groove is formed in the right supporting plate, and the right lower cutter is adjustably installed in the right accommodating groove.

As an optimal scheme, one side that left side storage tank kept away from left side upper slitter is equipped with left screw hole, the downthehole left side lower slitter adjusting screw that is equipped with of left side screw, left side lower slitter adjusting screw's free end stretches into left side storage tank and contradicts with left lower slitter, one side that right side storage tank kept away from right side upper slitter is equipped with right screw hole, the threaded right side in-hole is equipped with right lower slitter adjusting screw, right side lower slitter adjusting screw's free end stretches into right side storage tank and contradicts with right lower slitter.

As a preferred scheme, the left side of the left positioning plate is provided with a left mounting block, the left positioning plate can be mounted on the left supporting plate in a left-right adjusting mode through the left mounting block, the right side of the right positioning plate is provided with a right mounting block, and the right positioning plate can be mounted on the right supporting plate in a left-right adjusting mode through the right mounting block.

As a preferred scheme, a left baffle and a right baffle for blocking the front end of an article are respectively arranged on the left supporting plate and the right supporting plate.

As a preferred scheme, the left supporting plate is provided with a left punching notch for the downward movement of the left upper knife, and the right supporting plate is provided with a right punching notch for the downward movement of the right upper knife.

As an optimal scheme, left corner cut subassembly is still including the upper left blade holder that is used for installing the upper left sword, be equipped with the left linear guide of vertical setting on the base of a left side, upper left blade holder and left linear guide sliding connection and by left corner cut drive unit control along left linear guide up-and-down motion, be equipped with the left gas blow pipe that drives the activity by upper left blade holder on the upper left blade holder, right corner cut subassembly is still including the upper right blade holder that is used for installing the upper right sword, be equipped with the right linear guide of vertical setting on the base of the right side, upper right blade holder and right linear guide sliding connection and by right corner cut drive unit control along right linear guide up-and-down motion, be equipped with the right gas blow pipe that drives the activity by upper right blade holder on the blade holder of the right side.

As a preferred scheme, be equipped with left mounting groove on the upper left blade holder, one side or both sides of left side mounting groove are equipped with left installation through-hole, the upper left sword passes left installation through-hole through the bolt and installs on the upper left blade holder, be equipped with right mounting groove on the upper right blade holder, one side or both sides of right mounting groove are equipped with right installation through-hole, the upper right sword passes right installation through-hole through the bolt and installs on the upper right blade holder.

As a preferred scheme, a left abutting assembly is arranged above the left lower cutter, a right abutting assembly is arranged above the right lower cutter, the left abutting assembly comprises a left abutting block and a left abutting cylinder for controlling the left abutting block to move up and down, the left abutting cylinder is installed on the left base through a left connecting plate, the right abutting assembly comprises a right abutting block and a right abutting cylinder for controlling the right abutting block to move up and down, and the right abutting cylinder is installed on the right base through a right connecting plate.

As a preferred scheme, actuating mechanism includes location drive unit and regulation drive unit, be equipped with the guide bar in the frame, left side base passes through left uide bushing and guide bar sliding connection and moves along the axial direction of guide bar by location drive unit control, right side base passes through right uide bushing and guide bar sliding connection and moves along the axial direction of guide bar by regulation drive unit control, location drive unit drives actuating cylinder for the location, location drive actuating cylinder installs on left side base, the movable joint that the cylinder was driven in the location is connected with the frame, it includes accommodate the lead screw to adjust drive unit, accommodate the lead screw's axial direction is the same with the axial direction of guide bar, accommodate the lead screw is connected with right base spiral shell, accommodate the lead screw's one end is connected with the adjusting hand wheel.

Compared with the prior art, the utility model has the obvious advantages and beneficial effects, particularly,

1. the left base is provided with an upper cutter and a left corner cutting driving unit, the right base is provided with a right upper cutter and a right corner cutting driving unit, the lower end of the left base is provided with a left supporting plate, the lower end of the right base is provided with a right supporting plate, the left supporting plate is provided with a left lower cutter, the right supporting plate is provided with a right lower cutter, the left supporting plate on the left side of the left lower cutter is provided with a left positioning plate, the supporting plate on the right side of the right lower cutter is provided with a right positioning plate, an article placing position is formed between the left positioning plate and the right positioning plate, and when the machine works, the driving mechanism controls the left base and the right base to move relatively to enable the left positioning plate and the right positioning plate to press two ends of an article, so that the positioning precision of the article is improved, the corner cutting consistency is good, the corner cutting is neat and attractive, the machine, The position of the lower cutter has high working efficiency and reduces the production cost.

2. The lower extreme through at left base is equipped with left layer board, the lower extreme of right base is equipped with right layer board, be equipped with left storage tank on the layer board of left side, left side lower sword adjustable mounting is in left storage tank, be equipped with right storage tank on the layer board of right side, right side lower sword adjustable mounting is in right storage tank, thereby the vertical distance of adjustable left lower sword and left upper sword, and the vertical distance of adjustable right lower sword and right upper sword, it is tighter to make left lower sword and left upper sword and right lower sword and right upper sword laminate at the corner cut in-process, more be favorable to carrying out the corner cut to article, improve the efficiency of corner cut.

3. The left upper tool apron and the right upper tool apron are respectively connected with the left linear guide rail and the right linear guide rail in a sliding manner, so that the running stability of the left upper tool apron and the right upper tool apron is improved; through setting up left gas blow pipe and right gas blow pipe, in time clear up the waste material, avoid the waste material to pile up.

4. The left positioning plate can be adjusted left and right to be installed on the left supporting plate, the right positioning plate can be adjusted left and right to be installed on the right supporting plate, the distance between the left positioning plate and the right positioning plate can be finely adjusted, the situation that the left positioning plate and the right positioning plate cannot support and press two ends of an article due to overlarge distance is avoided, the problem that the left positioning plate and the right positioning plate deform the article due to too small distance is also avoided, and the article can be effectively protected.

To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions achieved thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

drawings

FIG. 1 is a schematic view of an assembly structure according to an embodiment of the present invention;

FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;

fig. 3 is a schematic view of an assembly structure of the left base, the left corner cut assembly and the left positioning plate according to the embodiment of the present invention;

FIG. 4 is an exploded schematic view of FIG. 3;

FIG. 5 is a schematic view of an assembly structure of the right base, the right corner cutting assembly and the right positioning plate according to the embodiment of the present invention;

fig. 6 is an exploded schematic view of fig. 5.

The attached drawings indicate the following:

10-a frame; 11-a platform; 12-positioning a driving cylinder;

13-a guide bar; 14-adjusting the drive unit; 15-adjusting the screw rod;

16-adjusting the hand wheel; 20-a left base; 21-upper left cutter;

22-left upper tool apron; 221-left mounting groove; 222-left mounting through hole;

223-left gas blowing pipe; 23-left slider; 24-a left linear guide;

25-left connecting arm; 26-a left slipway cylinder; 27-left guide sleeve;

28-left lower cutter; 29-left pallet; 291-left chute;

30-a left baffle; 31-left inductive switch; 32-a left accommodating groove;

33-left hopper; 34-a left positioning plate; 35-a left mounting block;

351-left mounting hole; 36-left positioning plate adjusting screw; 37-left punching an incision;

38-left web; 39-left pressing cylinder; 391-left pressing block;

40-a right base; 401-a nut; 41-upper right knife;

42-right upper tool apron; 421-right mounting groove; 422-right mounting through hole;

423-right blowing pipe; 43-right slider; 44-right linear guide;

45-right connecting arm; 46-right ramp cylinder; 47-right guide sleeve;

48-lower right knife; 481 — right via; 49-right support plate;

491-right chute; 492-right threaded hole; 50-a right baffle;

51-right inductive switch; 52-right receiving groove; 53-right hopper;

54-right positioning plate; 55-right mounting block; 551-right mounting hole;

56-adjusting screw of right positioning plate; 57-punching a cut on the right; 58-right connecting plate;

59-right pressing cylinder; 591-right pressing block.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 1-6, a corner cutting machine includes a frame 10, a left base 20, a right base 40 and a driving mechanism for controlling the relative movement of the left base 20 and the right base 40 are disposed on the frame 10, the driving mechanism includes a positioning driving unit and an adjusting driving unit 14, a guide rod 13 is disposed on the frame 10, the left base 20 is slidably connected to the guide rod 13 through a left guide sleeve 27 and is controlled by the positioning driving unit to move along the axial direction of the guide rod 13, the right base 40 is slidably connected to the guide rod 13 through a right guide sleeve 47 and is controlled by the adjusting driving unit 14 to move along the axial direction of the guide rod 13, the positioning driving unit is a positioning driving cylinder 12, the positioning driving cylinder 12 is mounted on the left base 20, a movable joint of the positioning driving cylinder 12 is connected to the frame 10, the adjusting driving unit 14 includes an adjusting screw rod 15, the axial direction of the adjusting screw rod 15 is the same as the axial direction of the guide rod 13, the right base 40 is provided with a nut 401, the adjusting screw rod 15 is in threaded connection with the nut 401, one end of the adjusting screw rod 15 is connected with an adjusting hand wheel 16, the left base 20 is provided with a left corner cut assembly, the left corner cut assembly comprises a left lower cutter 28, a left upper cutter 21 corresponding to the left lower cutter 28 and a left corner cut driving unit for controlling the movement of the left upper cutter 21, the right base 40 is provided with a right corner cut assembly, the right corner cut assembly comprises a right lower cutter 48, a right upper cutter 41 corresponding to the right lower cutter 48 and a right corner cut driving unit for controlling the movement of the right upper cutter 41, the lower end of the left base 20 is provided with a left supporting plate 29, the lower end of the right base 40 is provided with a right supporting plate 49, the left lower cutter 28 is positioned on the left supporting plate 29, the right lower cutter 48 is positioned on the right supporting plate 49, the left supporting plate 29 of the left lower cutter, the supporting plate on the right side of the right lower knife 48 is provided with a right positioning plate 54, an article placing position is formed between the left positioning plate 34 and the right positioning plate 54, one side of the article placing position is provided with a platform 11, a left pressing component is arranged above the left lower knife 28, a right pressing component is arranged above the right lower knife 48, the left pressing component comprises a left pressing block 391 and a left pressing cylinder 39 for controlling the left pressing block 391 to move up and down, the left pressing cylinder 39 is mounted on the left base 20 through a left connecting plate 38, the right pressing component comprises a right pressing block 591 and a right pressing cylinder 59 for controlling the right pressing block 591 to move up and down, and the right pressing cylinder 59 is mounted on the right base 40 through a right connecting plate 58.

The left supporting plate 29 is provided with a left accommodating groove 32, the left lower cutter 28 is adjustably installed in the left accommodating groove 32, the right supporting plate 49 is provided with a right accommodating groove 52, the right lower cutter 48 is adjustably installed in the right accommodating groove 52, one side of the left accommodating groove 32, which is far away from the left upper cutter 28, is provided with a left threaded hole (not shown), the left threaded hole is internally provided with a left lower cutter adjusting screw rod (not shown), the free end of the left lower cutter adjusting screw rod extends into the left accommodating groove 32 to be abutted against the left lower cutter 28, one side of the right accommodating groove 52, which is far away from the right upper cutter 48, is provided with a right threaded hole 492, the right threaded hole 492 is internally provided with a right lower cutter adjusting screw rod (not shown), the free end of the right lower cutter adjusting screw rod extends into the right accommodating groove 52 to be abutted against the right lower cutter 48, the left lower cutter 28 is provided with a left through hole (not shown) extending along the, the right lower knife 48 is provided with a right through hole 481 extending along the length direction of the right lower knife, a right screw hole (not shown) corresponding to the right through hole 481 is arranged in the right accommodating groove 52, during assembly, the upper surface of the left lower knife 28 and the upper surface of the left supporting plate 29 are parallel and level, the upper surface of the right lower knife 48 and the upper surface of the right supporting plate 49 are parallel and level, the internal degree of the left lower knife adjusting screw extending into the left accommodating groove 32 and the depth of the right lower knife adjusting screw extending into the right accommodating groove 52 are increased by rotating the left lower knife adjusting screw and the right lower knife adjusting screw, the vertical distances between the left lower knife 28 and the left upper knife 21 and between the right lower knife 48 and the right upper knife 41 are reduced, the left lower knife 28 and the left upper knife 21 and between the right lower knife 48 and the right upper knife 41 are more tightly attached in the corner cutting process, the corner cutting of articles is more facilitated, and the efficiency of the

It should be noted that the adjusting screw may be replaced by an adjusting screw, or the adjusting screw may be replaced by a spacer or a cushion block.

The left positioning plate 34 is provided with a left mounting block 35 on the left side, the left positioning plate 34 is mounted on the left support plate 29 by the left mounting block 35 in a left-right adjustable manner, the right positioning plate 54 is provided with a right mounting block 55 on the right side, the right positioning plate 54 is mounted on the right support plate 49 by the right mounting block 55 in a left-right adjustable manner, the left support plate 29 is provided with a left sliding groove 291 corresponding to the left mounting block 35, the left sliding groove 291 extends in the left-right direction, the left positioning plate 34 is movably arranged on the left sliding groove 291 by the left mounting block 35, the left mounting block 35 is provided with a left mounting hole 351, the left mounting hole 351 is a strip-shaped mounting hole 491 extending in the moving direction of the left mounting block 35, the left sliding groove 291 is provided with a left connecting hole (not shown) corresponding to the left mounting hole 351, the right support plate 49 is provided with a right sliding groove 491 corresponding to the right mounting block 55, the right positioning plate 54, the right chute 491 extends along the left-right direction, a right mounting hole 551 is arranged on the right mounting block 55, the right mounting hole 551 is a strip-shaped mounting hole formed by extending along the moving direction of the right mounting block 55, a right connecting hole (not shown) corresponding to the right mounting hole 551 is arranged in the right chute 491, a left positioning plate adjusting screw 36 is arranged on the left supporting plate 29, a right positioning plate adjusting screw 56 is arranged on the right supporting plate 49, the extending end of the left positioning plate adjusting screw 36 is abutted against the left mounting block 35, the extending end of the right positioning plate adjusting screw 56 is abutted against the right mounting block 55, the distance between the left positioning plate 34 and the right positioning plate 54 can be finely adjusted by arranging the left positioning plate adjusting screw 36 and the right positioning plate adjusting screw 56, the problem that the left positioning plate 34 and the right positioning plate 54 cannot be pressed against the two ends of an article due to overlarge distance is avoided, and the problem that the left positioning plate 34 and the right positioning plate, can effectively protect article, be equipped with left baffle 30 and the right baffle 50 that is used for blocking the article front end on left side layer board 29 and the right layer board 49 respectively, be equipped with left inductive switch 31 and right inductive switch 51 on left side baffle 30 and the right baffle 50 respectively, left side layer board 29 is equipped with the left side that supplies upper left sword 21 downward activity and dashes incision 37, right side layer board 49 is equipped with the right die-cut mouth 57 that supplies upper right sword 41 downward activity, die-cut mouth 37 in a left side runs through the upper and lower surface of left layer board 29, die-cut mouth 57 in the right side runs through the upper and lower surface of right layer board 49, die-cut mouth 37 in a left side and die-cut mouth 57 below in the right side are equipped with left hopper 33 and right hopper 53 respectively.

The left corner cut assembly further comprises an upper left tool apron 22 used for installing an upper left tool 21, a left linear guide rail 24 vertically arranged is arranged on the left base 20, the upper left tool apron 22 is connected with the left linear guide rail 24 in a sliding mode through a left sliding block 23 and is controlled to move up and down along the left linear guide rail 24 by a left corner cut driving unit, the left corner cut driving unit is a left sliding table cylinder 26, the upper left tool apron 22 is connected with a movable joint of the left sliding table cylinder 26 through a left connecting arm 25, a left blowing pipe 223 driven to move by the upper left tool apron 22 is arranged on the upper left tool apron 22, the right corner cut assembly further comprises an upper right tool apron 42 used for installing the upper right tool 21, a right linear guide rail 44 vertically arranged is arranged on the right base 40, the upper right tool apron 42 is connected with the right linear guide rail 44 in a sliding mode through a right sliding block 43 and is controlled to move up and down along the right linear guide rail 44, the right corner cut drive unit is a right sliding table cylinder 46, the right upper cutter holder 42 is connected with a movable joint of the right sliding table cylinder 46 through a right connecting arm 45, a right air blowing pipe 423 which is driven to move by the right upper cutter holder 42 is arranged on the right upper cutter holder 42, the cut waste materials are cleaned in time by arranging a left air blowing pipe 223 and a right air blowing pipe 423, waste material accumulation is avoided, a left mounting groove 221 is arranged on the left upper cutter holder 22, a left mounting through hole 222 is arranged on one side of the left mounting groove 221, the left upper cutter 21 is mounted on the left upper cutter holder 22 through the left mounting through hole 222 by a bolt, a right mounting groove 421 is arranged on the right upper cutter holder 42, a right mounting through hole 422 is arranged on one side of the right mounting groove 421, the right upper cutter 41 is mounted on the right upper cutter holder 42 by the right mounting through hole 422 by the bolt, when the left upper cutter 21 is mounted, the extending, when the right upper blade 41 is mounted, the extending end of the bolt abuts against the side wall surface of the right upper blade 41, in this embodiment, the left mounting through hole 222 may be disposed on both sides of the left mounting groove 221, and the right mounting through hole 422 may be disposed on both sides of the right mounting groove 421.

The working principle of the utility model is as follows: an operator places an article (such as a book) at an article placement position between the left positioning plate 34 and the right positioning plate 54, pushes the article to move forward to enable the article to be in pressing contact with the left baffle 30 and the right baffle 50, after the left inductive switch 31 and the right inductive switch 51 sense the article, the positioning driving cylinder 12 controls the left base 20 to move toward the right base 40, so that the left positioning plate 34 and the right positioning plate 54 are respectively in pressing contact with two ends of the article, the article is positioned, the left pressing cylinder 39 and the right low-pressure cylinder respectively control the left pressing block 391 and the right pressing block 591 to move down to press corners at two ends of the article, the left sliding table cylinder 26 and the right sliding table cylinder 46 respectively control the left upper knife 21 and the right upper knife 41 to move down to cut off corners at two ends of the article, and the left blowing pipe 223 and the right blowing pipe 423 respectively blow the cut waste into the left die-cutting opening 37 and.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, so any modifications, equivalent replacements, improvements, etc. made to the above embodiments by the technology of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. A corner cutting machine is characterized by comprising a frame, wherein the frame is provided with a left base, a right base and a driving mechanism for controlling the relative movement of the left base and the right base, the left base is provided with a left corner cutting assembly, the left corner cutting assembly comprises a left lower cutter, a left upper cutter corresponding to the left lower cutter and a left corner cutting driving unit for controlling the movement of the left upper cutter, the right base is provided with a right corner cutting component, the right corner cutting component comprises a right lower cutter, a right upper cutter corresponding to the right lower cutter and a right corner cutting driving unit for controlling the right upper cutter to move, the lower end of the left base is provided with a left supporting plate, the lower end of the right base is provided with a right supporting plate, the left lower knife is positioned on the left supporting plate, the right lower knife is positioned on the right supporting plate, the left supporting plate on the left side of the left lower knife is provided with a left positioning plate, and a right positioning plate is arranged on the supporting plate on the right side of the right lower knife, and an article placing position is formed between the left positioning plate and the right positioning plate.

2. The corner cutting machine according to claim 1, wherein the left support plate is provided with a left receiving groove, the left lower blade is adjustably mounted in the left receiving groove, the right support plate is provided with a right receiving groove, and the right lower blade is adjustably mounted in the right receiving groove.

3. The corner cutting machine according to claim 2, wherein a left threaded hole is formed in one side, away from the left upper cutter, of the left accommodating groove, a left lower cutter adjusting screw is arranged in the left threaded hole, a free end of the left lower cutter adjusting screw extends into the left accommodating groove to be abutted against the left lower cutter, a right threaded hole is formed in one side, away from the right upper cutter, of the right accommodating groove, a right lower cutter adjusting screw is arranged in the right threaded hole, and a free end of the right lower cutter adjusting screw extends into the right accommodating groove to be abutted against the right lower cutter.

4. The corner cutting machine according to claim 2, wherein the left side of the left positioning plate is provided with a left mounting block, the left positioning plate is mounted on the left supporting plate in a left-right adjustable mode through the left mounting block, the right side of the right positioning plate is provided with a right mounting block, and the right positioning plate is mounted on the right supporting plate in a left-right adjustable mode through the right mounting block.

5. The corner cutting machine according to claim 1 or 2, wherein the left supporting plate and the right supporting plate are respectively provided with a left baffle and a right baffle for blocking the front end of the article.

6. The corner cutting machine according to claim 1 or 2, wherein the left supporting plate is provided with a left punching notch for downward movement of the left upper cutter, and the right supporting plate is provided with a right punching notch for downward movement of the right upper cutter.

7. The angle cutting machine according to claim 1, wherein the left corner cutting assembly further comprises a left upper cutter holder for mounting a left upper cutter, the left base is provided with a vertically arranged left linear guide rail, the left upper cutter holder is slidably connected with the left linear guide rail and is controlled by the left corner cutting driving unit to move up and down along the left linear guide rail, the left upper cutter holder is provided with a left air blowing pipe driven by the left upper cutter holder to move, the right corner cutting assembly further comprises a right upper cutter holder for mounting a right upper cutter, the right base is provided with a vertically arranged right linear guide rail, the right upper cutter holder is slidably connected with the right linear guide rail and is controlled by the right corner cutting driving unit to move up and down along the right linear guide rail, and the right upper cutter holder is provided with a right air blowing pipe driven by the right upper cutter holder to move.

8. The corner cutting machine according to claim 7, wherein a left mounting groove is formed in the upper left cutter holder, a left mounting through hole is formed in one side or two sides of the left mounting groove, the upper left cutter is mounted on the upper left cutter holder through the left mounting through hole by a bolt, a right mounting groove is formed in the upper right cutter holder, a right mounting through hole is formed in one side or two sides of the right mounting groove, and the upper right cutter is mounted on the upper right cutter holder through the right mounting through hole by a bolt.

9. The corner cutting machine according to claim 1, wherein a left pressing assembly is arranged above the left lower cutter, a right pressing assembly is arranged above the right lower cutter, the left pressing assembly comprises a left pressing block and a left pressing cylinder for controlling the left pressing block to move up and down, the left pressing cylinder is mounted on the left base through a left connecting plate, the right pressing assembly comprises a right pressing block and a right pressing cylinder for controlling the right pressing block to move up and down, and the right pressing cylinder is mounted on the right base through a right connecting plate.

10. The corner cutting machine according to claim 1, wherein the driving mechanism comprises a positioning driving unit and an adjusting driving unit, the machine frame is provided with a guide rod, the left base is connected with the guide rod in a sliding way through a left guide sleeve and is controlled by a positioning driving unit to move along the axial direction of the guide rod, the right base is connected with the guide rod in a sliding way through a right guide sleeve and is controlled by the adjusting and driving unit to move along the axial direction of the guide rod, the positioning driving unit is a positioning driving cylinder which is arranged on the left base, the movable joint of the positioning driving cylinder is connected with the frame, the adjusting driving unit comprises an adjusting screw rod, the axial direction of the adjusting screw rod is the same as that of the guide rod, the adjusting screw rod is screwed with the right base, and one end of the adjusting screw rod is connected with an adjusting hand wheel.