CN114311328A

CN114311328A - Cutting device

Info

Publication number: CN114311328A
Application number: CN202011050849.1A
Authority: CN
Inventors: 邬全兵; 张琼; 李宁
Original assignee: Guangdong Bozhilin Robot Co Ltd
Current assignee: Guangdong Bozhilin Robot Co Ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2022-04-12

Abstract

The invention discloses a cutting device, comprising: the cutting machine comprises a rack, a cutter and a cutter frame, wherein the rack is used for placing a supporting piece, and the supporting piece is used for placing a piece to be cut; the main cutting part and the auxiliary cutting part are movably arranged on the rack, the main cutting part and the auxiliary cutting part can move from one side of the part to be cut to the other side, and the auxiliary cutting part is positioned at the rear end of the main cutting part along the moving direction of the main cutting part; the main cutting piece comprises a main blade and a supporting piece, wherein the main blade is used for cutting the piece to be cut, and a fourth gap is formed between the bottom of the main blade and the supporting piece in the cutting process; the secondary cutting part comprises a secondary blade, the secondary blade moves along the cutting track of the primary blade to cut the piece to be cut, and the bottom of the secondary blade is elastically stopped against the bearing part in the cutting process. The invention can thoroughly cut off the to-be-cut piece, ensures the cut to be uniform and beautiful, has better integral consistency of the to-be-cut piece, and simultaneously can play a role of protecting the supporting piece at the bottom, thereby saving the cost and improving the economic benefit.

Description

Cutting device

Technical Field

The invention relates to the technical field of cutting equipment, in particular to a cutting device.

Background

In recent years, with the policy promotion in the aspect of comprehensive waste utilization in China, particularly the treatment of construction waste and the implementation of the commercialization of the construction parts in China, the industry of the construction partition board is rapidly developed. The hollow concrete wall board is a porous light wall board made up by using cement as cementing material, using sand, stone and proper quantity of building wastes as aggregate, and adopting one-step extrusion-forming process by means of extrusion-forming machine and natural curing process. The composite material has low production cost and light weight, and is widely applied to the field of assembly type buildings. The wall board is formed on a template by continuous extrusion of an extruder and then cut into corresponding lengths by a concrete cutter. Generally, a concrete cutting machine performs cutting of a wall panel by a cutting blade rotating at a high speed, and the cutting blade has a large diameter and a small thickness, and inevitably generates a bounce when rotating at a high speed.

At present, in order to prevent the cutting saw blade rotating at a high speed from damaging the template, the cutting saw blade is arranged above the template for a certain distance during cutting, so that continuously extruded concrete is not broken by the undercut, and then is forced to be broken during forward conveying, so that the end part of a produced wallboard often has defects, the cut is uneven and attractive, the consistency of the produced wallboard is poor, and the quality and the appearance of the wallboard are seriously influenced.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the cutting device, the cutting device can thoroughly cut off concrete by arranging the auxiliary cutting part which is elastically stopped at the front or the rear of the high-speed rotating cutting saw blade, the cut is uniform and attractive, and the produced wallboard has good consistency.

A cutting device according to an embodiment of the present invention includes: the cutting machine comprises a machine frame, a cutter and a cutter support, wherein the machine frame is used for placing a support, and the support is used for placing a to-be-cut piece; the cutting device comprises a main cutting part and an auxiliary cutting part, wherein the main cutting part and the auxiliary cutting part are movably arranged on the machine frame, can move from one side of the part to be cut to the other side, and are positioned at the rear end of the main cutting part along the moving direction of the main cutting part; the main cutting piece comprises a main blade and is used for cutting the piece to be cut, and a fourth gap is formed between the bottom of the main blade and the supporting piece in the cutting process; the secondary cutting part comprises a secondary blade, the secondary blade moves along the cutting track of the primary blade to cut the piece to be cut, and the bottom of the secondary blade is elastically stopped on the bearing part during the cutting process.

According to the cutting device provided by the embodiment of the invention, the main cutting part and the auxiliary cutting part are arranged, the fourth gap is formed between the bottom of the main blade and the supporting part, the bottom of the auxiliary blade is elastically stopped against the supporting part, the to-be-cut part can be thoroughly cut off, the cut is ensured to be uniform and attractive, the integral consistency of the to-be-cut part is better, meanwhile, the effect of protecting the supporting part at the bottom can be achieved, the cost is saved, and the economic benefit is improved.

In some embodiments, the number of the secondary cutting members is two, and the two secondary cutting members are respectively arranged on two opposite sides of the moving direction of the main cutting member; the auxiliary cutting part has a rising state and a falling state in the vertical direction in the cutting process, when the auxiliary cutting part is in the rising state, the bottom of the auxiliary blade is higher than the part to be cut, and when the auxiliary cutting part is in the falling state, the auxiliary blade elastically stops against the bearing part; the main cutting member moves to cut the member to be cut, and the sub-cutting member located at the front side of the main cutting member is in the raised state and the other sub-cutting member located at the rear side of the main cutting member is in the lowered state in the moving direction of the main cutting member.

Optionally, the rack is a conveying frame, and the conveying part is provided with a roller to convey the supporting part; the cutting device further comprises a detection piece, the detection piece is arranged on the conveying frame, and when the detection piece detects the piece to be cut, the two auxiliary cutting pieces are respectively in the rising state and the descending state.

In some embodiments, the secondary cutting member further comprises: a fixed seat; the mounting base is connected with a plurality of elastic pieces, a mounting area is defined by the mounting base and a plurality of joints of the elastic pieces, the auxiliary blade is arranged below the mounting base, and the projection of the auxiliary blade on the mounting base passes through the center of the mounting area; the other ends of the elastic pieces are connected to the fixed seat.

In some embodiments, the number of the main cutting members is two, the number of the auxiliary cutting members is two, the two main cutting members are arranged at intervals along the moving direction, the two main cutting members are located between the two auxiliary cutting members, and the rotation directions of the main blades of the two main cutting members are opposite.

In some embodiments, the cutting device further comprises: the main body frame is arranged on the rack in a manner of being horizontally displaceable along a transportation direction, and the main body frame is respectively provided with a positioning mechanism at two opposite sides of the transportation direction; wherein, a transportation unit is defined, the transportation unit comprises one piece to be cut and one bearing piece, the transportation unit is supported on the frame and horizontally displaces along the transportation direction, the transportation direction is horizontally crossed with the moving direction of the main cutting piece, the positioning mechanisms at two sides can respectively abut against two opposite sides of the transportation unit, so that the main body frame and the transportation unit jointly displace along the transportation direction; the moving mechanism is arranged on the main body frame, and the main cutting part and the auxiliary cutting part are arranged on the output end of the moving mechanism.

Optionally, the positioning mechanism includes: the positioning piece is arranged on the rack and used for respectively abutting against two opposite sides of the to-be-cut piece; the clamping piece is rotatably arranged on the main body frame and has a clamping state and an opening state, when the clamping state is achieved, the clamping piece rotates and is abutted against two opposite sides of the supporting piece, so that the main body frame and the supporting piece are jointly displaced along the conveying direction, and when the clamping piece is achieved, the clamping piece is separated from the supporting piece.

Optionally, the positioning member includes: the cutting knife comprises a first positioning piece and a second positioning piece, a third gap is formed between the second positioning piece and the first positioning piece, the main blade and the auxiliary blade can penetrate through the third gap to cut the piece to be cut, the main blade forms a cutting seam on the piece to be cut, and the first positioning piece and the second positioning piece are stopped and abutted on two sides of the cutting seam.

Optionally, the first positioning element and the second positioning element have the same structure, and the first positioning element includes: the first rod part is horizontally arranged, the upper surface of the bearing part is a horizontally arranged reference surface, and the first rod part is flush with the reference surface so that the upper surface of the first rod part serves as a reference adjusting surface; the first positioning part is vertically connected to the first rod part to stop against the piece to be cut.

In some embodiments, the cutting device further comprises: push back the extensible member, it establishes to push back the extensible member in the frame, it connects to push back the extensible member main part frame, it has initial cutting position and next cutting position to wait to cut the piece, it drives in cutting process to wait to cut the main part frame and move along the direction of transportation and keep away from initial cutting position, after the cutting is accomplished push back the extensible member can with the main part frame pushes back to next cutting position.

In some embodiments, the primary cutter further comprises: the safety cover, the safety cover has accepts the chamber, main blade establishes it just can independently rotate to accept the intracavity, main blade part stretches out accept the chamber in order to cut treat the cutting member, main blade's moving direction around both ends with accept and be formed with first clearance and second clearance between the chamber respectively, the length in first clearance is greater than the length in second clearance.

In some embodiments, the upper surface of the supporting member is a horizontally disposed reference surface, the bottom of the primary blade and the reference surface form the fourth gap therebetween, and the bottom of the secondary blade extends below the reference surface.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a first schematic perspective view of a cutting apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic diagram showing the positional relationship among the main blade, the sub-blade, the member to be cut, and the supporting member in the embodiment of the present invention;

FIG. 3 is a schematic perspective view of a second embodiment of a cutting device according to the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at I;

FIG. 5 is a first perspective view of a secondary cutting member according to an embodiment of the present invention;

FIG. 6 is a second schematic perspective view of a secondary cutting member according to an embodiment of the present invention;

FIG. 7 is a third schematic perspective view of a cutting device according to an embodiment of the present invention;

FIG. 8 is a first schematic view of a main frame and its upper structure, and a member to be cut and a supporting member according to an embodiment of the present invention;

FIG. 9 is a second schematic structural view of the main frame and its upper structure, and the member to be cut and the supporting member according to the embodiment of the present invention;

FIG. 10 is a perspective view of the primary cutting member and the secondary cutting member in an embodiment of the present invention;

FIG. 11 is a schematic view of the internal structure of the main cutting member according to the embodiment of the present invention.

Reference numerals:

100. a cutting device;

10. a frame; 101. a guide rail;

20. a moving mechanism;

30. a main cutting member; 31. a main blade; 32. a protective cover; 321. an accommodating cavity; 3211. a first gap; 3212. a second gap;

40. a secondary cutting member; 41. a secondary blade; 42. a fixed seat; 421. a connecting plate; 43. a mounting seat; 44. an elastic member; 45. a lifting member; 46. a guide member; 47. a linear bearing;

60. a main body frame; 61. a roller; 62. a positioning mechanism; 621. a positioning member; 6211. a first positioning member; 62111. a first rod portion; 62112. a first positioning portion; 62113. a first cushion block; 6212. a second positioning member; 622. positioning the telescopic member; 623. a clamping member; 624. clamping the telescopic member; 625. a second cushion block; 626. a stopper;

50. a detection member; 70. pushing the telescopic part back;

001. a support member; 0011. a reference plane; 002. a piece to be cut; 003. a fourth gap; 004. an installation area; 005. a third gap; 006. cutting a seam; 007. a reference adjustment surface.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A cutting apparatus 100 according to an embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1 and 2, a cutting apparatus 100 according to an embodiment of the present invention includes: frame 10, main cutting member 30, secondary cutting member 40.

The frame 10 is used for placing a support 001, and the support 001 is used for placing a piece 002 to be cut. The main cutter 30 and the sub cutter 40 are movably provided on the frame 10, the main cutter 30 and the sub cutter 40 are movable from one side to the other side of the member to be cut 002, and the sub cutter 40 is located at the rear end of the main cutter 30 in the moving direction of the main cutter 30, for example, the main cutter 30 and the sub cutter 40 cut in the width direction of the member to be cut 002, and cut off the member to be cut 002 transversely.

The main cutting member 30 includes a main blade 31 for cutting the member to be cut 002, and a fourth gap 003 is formed between the bottom of the main blade 31 and the supporting member 001 during the cutting process; the sub-cutter 40 includes a sub-blade 41, the sub-blade 41 moves along the cutting track of the main blade 31 to cut the member to be cut 002, and the bottom of the sub-blade 41 elastically abuts against the holder 001 during the cutting process. That is, the main blade 31 plays a major part of the cutting action, and during the movement of the main cutter 30 in the moving direction, the part of the workpiece 002 in the fourth gap 003 is not cut, and the auxiliary blade 41 at the rear end is elastically stopped against the support 001, so that the workpiece 002 in the remaining fourth gap 003 can be cut.

According to the cutting device 100 provided by the embodiment of the invention, by arranging the main cutting part 30 and the auxiliary cutting part 40, the fourth gap 003 is formed between the bottom of the main blade 31 and the bearing part 001, and the bottom of the auxiliary blade 41 is elastically stopped against the bearing part 001, so that the to-be-cut part 002 can be thoroughly cut off, the cut is uniform and attractive, the integral consistency of the to-be-cut part 002 is better, the effect of protecting the bearing part 001 at the bottom can be achieved, the cost is saved, and the economic benefit is improved.

In some embodiments, as shown in fig. 3 and 4, there are two secondary cutting members 40, and the two secondary cutting members 40 are respectively disposed at opposite sides of the moving direction of the main cutting member 30; the auxiliary cutting element 40 has a rising state and a falling state in the vertical direction in the cutting process, when the auxiliary cutting element 40 is in the rising state, the bottom of the auxiliary blade 41 is higher than the element to be cut 002, and when the auxiliary cutting element 40 is in the falling state, the auxiliary blade 41 elastically stops against the bearing element 001; the main cutter 30 is moved to cut the member to be cut 002, and the sub-cutter 40 positioned at the front side of the main cutter 30 is in a raised state and the other sub-cutter 40 positioned at the rear side of the main cutter 30 is in a lowered state in the moving direction of the main cutter 30. That is, since two sub-cutters 40 are provided, when cutting in the forward direction, i.e., in the direction from left to right in fig. 3, the sub-cutter 40 on the right side is in the raised state, the bottom of the sub-blade 41 is higher than the member to be cut 002 and does not perform a cutting function, the sub-cutter 40 on the left side is in the lowered state, the bottom of the sub-blade 41 elastically abuts against the member to be cut 002 and performs a cutting function, and the member to be cut 002 is completely cut off as the main cutter 30 moves in the forward direction. After the completion of one cutting operation, the main cutting member 30 is located at the right end, and the cutting operation starts in the reverse direction, i.e., from right to left in fig. 3, the left sub-cutting member 40 is in the descending state, and the right sub-cutting member 40 is in the ascending state, and the member to be cut 002 is completely cut off as the main cutting member 30 moves in the reverse direction. By the mode, bidirectional cutting can be realized, the stroke distance in the primary cutting process can be shortened, the time is saved, and the cutting efficiency is improved.

In some embodiments, the main blade 31 is a high speed rotating saw blade with independent drive, which can better cut the piece to be cut 002.

In some embodiments, the moving mechanism 20 is any one of a pneumatic cylinder, an electric push rod, a hydraulic cylinder, and a linear module to drive the main cutting member 30 and the sub-cutting member 40 to move. For example, as shown in fig. 4, the moving mechanism 20 is a rodless cylinder, and the output end of the rodless cylinder is connected to the main cutting member 30 and the auxiliary cutting member 40, so that the main cutting member 30 and the auxiliary cutting member 40 can be driven to move.

Alternatively, as shown in fig. 1, the frame 10 is a conveying frame, and the conveying member has rollers to convey the supporting member 001, for example, the conveying frame is a roller conveying frame, and the supporting member 001 can be conveyed in a direction from the back to the front to convey the member to be cut 002. As shown in fig. 7, the cutting device 100 further includes a detecting member 50, the detecting member 50 is disposed on the conveying frame, when the detecting member 50 detects the workpiece 002, the two sub-cutting members 40 are in a rising state and a falling state, respectively, the workpiece 002 conveys the workpiece 002 forward from the rear, the detecting member 50 may be disposed at the front end of the conveying frame, when the detecting member 50 detects that the workpiece 002 reaches a preset position, the sub-cutting member 40 controlling the front end of the moving direction of the main cutting member 30 is in the rising state, and the sub-cutting member 40 controlling the rear end of the moving direction of the main cutting member 30 is in the falling state.

Optionally, the part to be cut of the piece to be cut 002 each time is a target piece, the distance from the detecting piece 50 to the main cutting piece 30 is equal to the length of the target piece, and when the detecting piece 50 detects the front end of the piece to be cut 002, the main cutting piece 30 cuts the piece to be cut 002.

In some embodiments, the detecting member 50 is a proximity sensor capable of detecting whether the member to be cut 002 is in proximity. Of course, the detecting element 50 may also be a distance sensor, an infrared sensor, etc., and will not be described herein.

In some embodiments, as shown in fig. 5 and 6, the secondary cutting member 40 further comprises: a fixed base 42; a mounting seat 43, a plurality of elastic members 44 are connected above the mounting seat 43, a mounting area 004 is defined by the mounting seat 43 and a plurality of joints of the plurality of elastic members 44, the secondary blade 41 is arranged below the mounting seat 43, and a projection of the secondary blade 41 on the mounting seat 43 passes through the center of the mounting area 004; the other ends of the plurality of elastic members 44 are connected to the fixing base 42. It can be understood that the connection point between the plurality of elastic members 44 and the mounting seat 43 defines a mounting area 004 by means of a connecting line, and the plurality of elastic members 44 provide an elastic force to elastically stop the secondary blade 41 against the supporting member 001. The position relationship between the elastic members 44 and the virtual polygon 004 is beneficial to keeping stress balance, so that the downward action points of the elastic members 44 and the positions where the secondary blade 41 abuts on the supporting member 001 are in the same plane, and the secondary blade 41 is beneficial to keeping the abutting state in the cutting process.

In some embodiments, as shown in fig. 5 and 6, the secondary cutting member 40 further includes a plurality of guiding members 46, the plurality of guiding members 46 are disposed in a one-to-one correspondence with the plurality of elastic members 44, the elastic members 44 are springs, the guiding members 46 are sleeved on the springs, one end of each guiding member 46 is connected to the mounting seat 43, and the other end of each guiding member 46 is vertically slidably disposed on the fixing seat 42.

Alternatively, as shown in fig. 5 and 6, the guiding elements 46 are guiding pillars, and the guiding pillars can be set to two, three or four groups, for example, the guiding pillars are set to three groups, the corresponding elastic elements 44 are three, and the virtual polygon 004 is a triangle. Of course, the number of guide members 46 may be other and will not be described in detail herein.

In some embodiments, as shown in fig. 5 and 6, the fixing base 42 has a connecting plate 421 extending along one horizontal side, the guiding element 46 is disposed on the connecting plate 421, the guiding element 46 partially passes through the connecting plate 421 and is installed as a linear bearing 47, and the linear bearing 47 can prevent the guiding element 46 from falling off the connecting plate 421.

In some embodiments, as shown in fig. 4, the secondary cutting member 40 further includes a lifting member 45, the lifting member 45 is disposed on the moving mechanism 20, and an output end of the lifting member 45 is connected to the fixing seat 42, so as to control the secondary blade 41 to be in the raised state and the lowered state.

In some embodiments, the lifting member 45 is any one of an air cylinder, a hydraulic cylinder, and an electric push rod, and of course, the lifting member 45 is not limited thereto and will not be described herein again.

In some embodiments, there are two main cutting members 30, two sub-cutting members 40, two main cutting members 30 are spaced apart in the moving direction, two main cutting members 30 are located between the two sub-cutting members 40, the main blade 31 is a rotary saw blade having independent driving, and the rotation directions of the main blades 31 of the two main cutting members 30 are opposite. That is to say, two main cutting member 30 are close to two vice cutting member 40 settings, when cutting, left main cutting member 30 and vice cutting member 40 can move right, cut half width of treating cutting member 002, transfer the moving direction of main cutting member 30 this moment, main cutting member 30 and vice cutting member 40 on right side move left, treat another half width of cutting member 002, just so can solve the problem that the cutting is easily glued, can also solve the problem of cutting out the easy broken limit of cutting mouth department.

In some embodiments, as shown in fig. 7-9, the cutting device 100 further comprises: a main body frame 60 and a moving mechanism 20, wherein the main body frame 60 is arranged on the frame 10 in a horizontally displaceable manner along the transportation direction, and two opposite sides of the main body frame 60 in the transportation direction are respectively provided with a positioning mechanism 62; wherein, define a transport unit, the transport unit includes one and waits to cut 002 and a supporting piece 001, the transport unit bearing in frame 10 and along transportation direction horizontal displacement, the transportation direction is crossing with the moving direction level of main cutting member 30, the positioning mechanism 62 of both sides can be supported respectively in the relative both sides of transport unit to make main body frame 60 and transport unit along transportation direction common displacement. The moving mechanism 20 is arranged on the main body frame 60, the main cutting part 30 and the auxiliary cutting part 40 are arranged on the output end of the moving mechanism 20, and the moving mechanism 20 is used for driving the main cutting part 30 and the auxiliary cutting part 40 to move.

In some embodiments, as shown in fig. 7 to 9, the main body frame 60 has rollers 61 on two opposite sides, the frame 10 has guide rails 101 on two ends in the moving direction of the main cutting member 30, and the rollers 61 are disposed on the guide rails 101, so that the main body frame 60 can move horizontally on the frame 10, that is, the main body frame 60 can drive the moving mechanism 20, the main cutting member 30, and the auxiliary cutting member 40 to move actively, and move along the length direction (i.e., the front-back direction) of the workpiece 002 after one cutting is completed, so as to cut the workpiece 002 at the next position.

Alternatively, as shown in fig. 8, the positioning mechanism 62 includes: the positioning piece 621 and the clamping piece 623, the positioning piece 621 is arranged on the frame 10, and the positioning piece 621 is used for respectively stopping against two opposite sides of the to-be-cut piece 002; the clamping piece 623 is rotatably arranged on the main body frame 60, the clamping piece 623 has a clamping state and an opening state, when in the clamping state, the clamping piece 623 rotates and is stopped against two opposite sides of the supporting piece 001, so that the main body frame 60 and the supporting piece 001 are jointly displaced along the transportation direction, and when in the opening state, the clamping piece 623 is separated from the supporting piece 001.

Optionally, as shown in fig. 8, the positioning mechanism 62 further includes: positioning telescoping member 622 and clamping telescoping member 624. The location extensible member 622 is established on frame 10, and the location extensible member 622 is connected the setting element 621 to drive the setting element 621 flexible and end and treat cutting the piece 002 on, the positioning mechanism 62 during operation of both sides, left location extensible member 622 drives the setting element 621 flexible, and the location extensible member 622 on right side drives the setting element 621 flexible, thereby adjusts the interval of two setting elements 621, will treat that cutting the piece 002 location compresses tightly. The clamping member 623 and the positioning member 621 are provided at a distance in the moving direction of the main body frame 60, so that the main body frame 60 is prevented from being deviated in the front-rear direction with respect to the member 002 to be cut. One end of the clamping retractor 624 is attached to the clamping member 623; the other end of the clamping telescopic piece 624 is connected to the clamping piece 623 of the positioning mechanism 62 on the other side, when the clamping telescopic piece 624 contracts, the clamping pieces 623 on the two sides rotate and abut against the two sides of the supporting piece 001, that is, one clamping telescopic piece 624 drives the two clamping pieces 623 to rotate, so that the cost is reduced, the control is simpler, for example, the clamping piece 623 on the left side rotates anticlockwise, and the clamping piece 623 on the right side rotates clockwise, so that the main body frame 60 can be clamped on the supporting piece 001. Positioning mechanism 62 fixes a position through setting element 621 and presss from both sides the left and right sides of tightly waiting to cut 002, press from both sides the left and right sides of tightly holding through clamping piece 623 to holding 001, make waiting to cut 002 and holding 001 keep relative static, main part frame 60 can follow holding 001 and move together, in the in-process of motion, setting element 621 presss from both sides tightly waiting to cut 002 in the left and right sides, the relative static of waiting to cut 002 is kept in the in-process of cutting, be favorable to the cutting effect, and main part frame 60 follows holding board 001 and moves together, make the transportation assembly line rhythm smooth and easy, unnecessarily let the transportation line pause, reduce the time cost.

Optionally, the positioning telescopic member 622 and the clamping telescopic member 624 are any one of an air cylinder, a hydraulic cylinder, and an electric push rod, and certainly, the positioning telescopic member 622 and the clamping telescopic member 624 are not limited thereto and are not described herein again.

Alternatively, as shown in fig. 8, the positioning member 621 includes: the first positioning member 6211 and the second positioning member 6212 are provided at intervals in the front-rear direction, a third gap 005 is provided between the second positioning member 6212 and the first positioning member 6211, the main blade 31 and the sub-blade 41 can cut the member to be cut 002 through the third gap 005 in the left-right direction, the main blade 31 forms the cutting slit 006 on the member to be cut 002, and the first positioning member 6211 and the second positioning member 6212 are stopped on both sides of the cutting slit 006. It can be understood that, in this way, the first positioning element 6211 and the second positioning element 6212 can effectively fix the two sides of the cutting slot 006, so as to ensure that the stability of the to-be-cut piece 002 with the main blade 31 and the auxiliary blade 41 in the cutting process is strong, which is beneficial to improving the cutting reliability and the cutting quality. And the third gap 005 can play a role of avoiding, so that the main blade 31 and the auxiliary blade 41 after the cutting is finished are convenient to place.

Alternatively, as shown in fig. 2 and 8, the first positioning member 6211 and the second positioning member 6212 have the same structure, and the first positioning member 6211 includes: a first stem portion 62111 and a first locator portion 62112. The first rod part 62111 is horizontally arranged, the upper surface of the supporting part 001 is a reference surface 0011 which is horizontally arranged, the first rod part 62111 is flush with the reference surface 0011, so that the upper surface of the first rod part 62111 serves as a reference adjusting surface 007, when cutting is not started in an initial state, the reference adjusting surface 007 is arranged below the main blade 31, a gap is formed between the bottom of the main blade 31 and the reference adjusting surface 007, the gap is equal to a fourth gap 003, due to the fact that a piece 002 to be cut is placed on the supporting part 001, observation is not facilitated, and the fourth gap 003 between the main blade 31 and the supporting part 001 can be indirectly adjusted through the reference adjusting surface 007. The first positioning portion 62112 is vertically connected to the first rod portion 62111 to stop against the member 002 to be cut.

In some embodiments, as shown in fig. 8, the first positioning portion 62112 is provided with a first pad 62113, and the first pad 62113 contacts the member to be cut 002 for protection, for example, the first pad 62113 is made of rubber, and has an elastic buffer effect, so that the protection effect is better. Of course, the first block 62113 may be made of other materials, and will not be described in detail here.

In some embodiments, as shown in fig. 8 and 9, a second pad block 625 is disposed on the clamping member 623, and the second pad block 625 is configured to abut on the supporting member 001 for protection. For example, the second pad 625 is made of rubber, and has an elastic buffering effect and a good protection effect. Of course, the second pad 625 may be made of other materials, which will not be described herein.

In some embodiments, as shown in fig. 8 and 9, the side of the clamping member 623 remote from the member 002 to be cut is provided with a stopper 626, and the stopper 626 is provided on the main body frame 60 for preventing the clamping member 623 from being excessively tilted.

In some embodiments, as shown in fig. 8 and 9, the cutting device 100 further comprises: push back extensible member 70, push back extensible member 70 and establish on frame 10, push back extensible member 70 and connect main part frame 60, it has initial cutting position and next cutting position to wait that cutting member 002 drives main part frame 60 and moves and keep away from initial cutting position along the direction of transportation in cutting process, push back extensible member 70 can push back main part frame 60 to next cutting position after the cutting is accomplished. For example, the push-back expansion piece 70 is a cylinder, the main cutting piece 30 and the auxiliary cutting piece 40 cut the piece 002 to be cut, the supporting plate 001 moves on the frame 10 along the conveying direction, the main body frame 60 moves together with the supporting plate 001, so that the conveying line is smooth in rhythm, the conveying line does not pause, the push-back expansion piece 70 is in a compressed state, after the cutting is finished, the push-back expansion piece 70 extends backwards to drive the main body frame 60 to move to the next cutting position, and the main cutting piece 30 and the auxiliary cutting piece 40 cut the piece 002 to be cut next time.

Back-push expansion piece

Optionally, the initial cutting position coincides with the next cutting position, the push-back extensible member 70 extends to drive the main body frame 60 to reset, and the extension amount of the push-back extensible member 70 is equal to the length of the target piece obtained after the to-be-cut piece 002 is cut, so that the length of the target piece obtained after each cutting is guaranteed to be consistent.

Optionally, the initial cutting position is not overlapped with the next cutting position, that is, the length of the target piece obtained after the to-be-cut piece 002 is cut from the initial cutting position is not equal to the length of the target piece obtained after the to-be-cut piece 002 is cut at the next cutting position, so that, after adjustment, the elongation of the push-back telescopic piece 70 can be larger than the length of the target piece obtained after the to-be-cut piece 002 is cut, and the to-be-cut piece 002 reaches the next cutting position; alternatively, the extension amount of the backward pushing telescopic member 70 may be smaller than the length of the target member obtained after the member to be cut 002 is cut, so that the member to be cut 002 reaches the next cutting position. The telescoping member 70 is pushed back as needed to adjust its elongation and thus the length of the target member to meet different usage requirements.

In some embodiments, as shown in fig. 4 and 10, the main cutter 30 further includes: the protective cover 32, the protective cover 32 has a receiving cavity 321, the main blade 31 is disposed in the receiving cavity 321 and can rotate independently, the main blade 31 partially extends out of the receiving cavity 321 to cut the piece 002 to be cut, and the protective cover 32 can improve the safety of the main blade 31 in the cutting process. A first gap 3211 and a second gap 3212 are respectively formed between the front end and the rear end of the main blade 31 in the moving direction and the accommodating cavity 321, the length of the first gap 3211 is greater than that of the second gap 3212, when the main blade 31 rotates independently, the cut crushed slag can be effectively prevented from splashing due to the longer length of the first gap 3211, and the reservation of the second gap 3212 is beneficial to taking out the cut crushed slag from the accommodating cavity 321, so as to avoid blocking the accommodating cavity 321.

In some embodiments, as shown in fig. 2, the upper surface of the supporting member 001 is a horizontally disposed reference plane 0011, and a fourth gap 003 is formed between the bottom of the main blade 31 and the reference plane 0011, and since the member to be cut 002 is placed on the supporting member 001, the reference plane 0011 can be used for adjusting the fourth gap 003 between the main blade 31 and the supporting member 001. The bottom of the secondary blade 41 extends below the datum plane 0011, so that the initial position of the secondary blade 41 can be adjusted, and the secondary blade 41 can be elastically stopped against the bearing piece 001 during cutting.

A specific embodiment of the cutting device 100 of the present invention will be described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1 to 2 and 5 to 11, a cutting apparatus 100 includes: the cutting device comprises a machine frame 10, a moving mechanism 20, a main cutting part 30, an auxiliary cutting part 40, a detection part 50, a main body frame 60 and a push-back telescopic part 70.

The frame 10 is used for placing a support 001, and the support 001 is used for placing a piece 002 to be cut. The moving mechanism 20 is provided on the frame 10. The main cutting member 30 and the auxiliary cutting member 40 are both connected to the moving mechanism 20 to move from one side of the piece 002 to be cut to the other side under the driving of the moving mechanism 20, and the auxiliary cutting member 40 is located at the rear end of the main cutting member 30 along the moving direction of the main cutting member 30. The frame 10 is a conveyor frame, and the conveyor has rollers for conveying the carrier 001.

The piece 002 to be cut is a concrete wall plate, and the supporting piece 001 is a template.

The moving mechanism 20 is a rodless cylinder, and the output end of the rodless cylinder is connected with the main cutting member 30 and the auxiliary cutting member 40.

The main cutter 30 includes a main blade 31 and a protective cover 32 for cutting the piece 002 to be cut, and a fourth gap 003 is formed between the bottom of the main blade 31 and the supporting member 001 during the cutting process, and the main blade 31 is a high-speed rotating saw blade with independent driving. The protective cover 32 has a receiving cavity 321, the main blade 31 is disposed in the receiving cavity 321 and can rotate independently, the main blade 31 partially extends out of the receiving cavity 321 to cut the to-be-cut piece 002, a first gap 3211 and a second gap 3212 are respectively formed between the front end and the rear end of the main blade 31 in the moving direction and the receiving cavity 321, and the length of the first gap 3211 is greater than the length of the second gap 3212.

The sub-cutter 40 includes a sub-blade 41, the sub-blade 41 moves along the cutting track of the main blade 31 to cut the member to be cut 002, and the bottom of the sub-blade 41 elastically abuts against the holder 001 during the cutting process.

The auxiliary cutting element 40 further comprises a fixed seat 42, a mounting seat 43, three elastic elements 44 and three guide elements 46, wherein the fixed seat 42 is arranged on the moving mechanism 20; the mounting seat 43 is provided with a mounting area 004, the mounting area 004 is a virtual triangle, the auxiliary blade 41 is arranged on the mounting seat 43, and the auxiliary blade 41 passes through the center of the virtual triangle; one end of each of the three elastic members 44 is respectively arranged at three end points of the virtual triangle, the other end of each of the three elastic members 44 is connected to the fixed seat 42, the three guide members 46 are arranged in one-to-one correspondence with the three elastic members 44, each of the elastic members 44 is a spring, each of the guide members 46 is sleeved on the spring, one end of each of the guide members 46 is connected to the mounting seat 43, the other end of each of the guide members 46 is vertically slidably arranged on the fixed seat 42, each of the guide members 46 is a guide post, the fixed seat 42 is provided with a connecting plate 421 extending out along one horizontal side, each of the guide members 46 is arranged on the connecting plate 421, part of each of the guide members 46 penetrates through the connecting plate 421 and is arranged as a linear bearing 47, and each of the linear bearings 47 can prevent the guide member 46 from falling off the connecting plate 421.

The detection part 50 is a proximity sensor, the proximity sensor is arranged on the conveying frame, and when the detection part 50 detects the to-be-cut part 002, the moving mechanism 20 is controlled to drive the main cutting part 30 and the auxiliary cutting part 40, and meanwhile, the main blade 31 is controlled to rotate.

The main body frame 60 is arranged between the moving mechanism 20 and the frame 10, and the moving mechanism 20 is arranged on the main body frame 60; wherein, the two opposite sides of the main body frame 60 are provided with rollers 61, the two ends of the frame 10 located in the moving direction of the main cutting member 30 are provided with guide rails 101, the rollers 61 are arranged on the guide rails 101, so that the main body frame 60 can move horizontally on the frame 10, the two opposite sides of the main body frame 60 are provided with positioning mechanisms 62, and the positioning mechanisms 62 at the two sides can be abutted against the member to be cut 002 and the supporting member 001, so that the member to be cut 002 and the supporting member 001 can be kept relatively still.

The positioning mechanism 62 includes: positioning member 621, positioning telescopic member 622, clamping member 623, and clamping telescopic member 624. The positioning telescopic member 622 is arranged on the frame 10, the positioning telescopic member 622 is connected with the positioning member 621 to drive the positioning member 621 to stretch and stop against the member to be cut 002, the clamping member 623 and the positioning member 621 are arranged at intervals along the moving direction of the main body frame 60, the clamping member 623 is pivotably arranged on the main body frame 60, and one end of the clamping telescopic member 624 is connected to the clamping member 623; the other end of the clamping retractor 624 is connected to the clamping member 623 of the other positioning mechanism 62, and when the clamping retractor 624 contracts, the clamping members 623 on both sides rotate and abut against both sides of the supporting member 001, and the positioning retractor 622 and the clamping retractor 624 are cylinders.

The positioning member 621 includes: the first positioning member 6211 and the second positioning member 6212, and the third gap 005 is provided between the second positioning member 6212 and the first positioning member 6211, the main blade 31 and the sub-blade 41 can pass through the third gap 005 to cut the member 002 to be cut, the main blade 31 forms the cutting slit 006 on the member 002 to be cut, and the first positioning member 6211 and the second positioning member 6212 stop on both sides of the cutting slit 006.

The first positioning member 6211 and the second positioning member 6212 have the same structure, and the first positioning member 6211 includes: a first stem portion 62111 and a first locator portion 62112. The first rod part 62111 is horizontally arranged, the upper surface of the supporting member 001 is a reference surface 0011 which is horizontally arranged, the first rod part 62111 is flush with the reference surface 0011, so that the upper surface of the first rod part 62111 serves as a reference adjusting surface 007, and the first positioning part 62112 is vertically connected to the first rod part 62111 to stop against the member to be cut 002.

The first positioning portion 62112 is provided with a first pad block 62113, and the first pad block 62113 contacts the member 002 to be cut for protection.

Be equipped with second cushion block 625 on clamping piece 623, second cushion block 625 is used for stopping on waiting to cut the piece 002, plays the guard action, and the one side of keeping away from waiting to cut the piece 002 of clamping piece 623 all is equipped with stopper 626, and stopper 626 is established on main part frame 60 and is used for preventing clamping piece 623 excessive slope.

Push back extensible member 70 and establish on frame 10, push back extensible member 70 and connect main part frame 60, and it has initial cutting position and next cutting position to wait to cut the piece 002, and it drives main part frame 60 and moves and keep away from initial cutting position along the direction of transportation to wait to cut the piece 002 in the cutting process, and it can drive main part frame 60 and remove to next cutting position to push back extensible member 70 after the cutting is accomplished. The upper surface of the supporting member 001 is a reference surface 0011 horizontally arranged, a fourth gap 003 is formed between the bottom of the main blade 31 and the reference surface 0011, and the bottom of the sub-blade 41 extends below the reference surface 0011.

The method of use of the embodiments of the invention is described below:

the cutting process is as follows: the extruder (not shown) continuously extrudes the concrete wall plate, which is placed on the template, when the template runs to be detected by the proximity sensor, the rodless cylinder pushes the main blade 31 rotating at high speed and the auxiliary blade 41 stopped elastically to move along the direction vertical to the movement direction of the concrete wall plate, so as to completely cut the concrete wall plate. After that, the rodless cylinder pushes the main blade 31 and the auxiliary blade 41 in reverse to reset rapidly, and waits for the next cutting.

In summary, in embodiment 1, the moving mechanism 20 drives the main cutting element 30 and the sub-cutting element 40 to move left and right, so as to realize unidirectional cutting of the template. The cutting device 100 can completely cut off the concrete wall panel by arranging the auxiliary cutting member 40 which is elastically stopped in front of or behind the high-speed rotating cutting saw blade, the cut is uniform and beautiful, and the produced wall panel has good consistency.

Example 2

As shown in fig. 2 to 11, a structure of a cutting apparatus 100 is disclosed, and the cutting apparatus 100 of embodiment 2 has a structure substantially the same as the cutting apparatus 100 of embodiment 1, and the same parts will not be described again.

In contrast, in embodiment 2, there are two sub-cutting members 40, and the two sub-cutting members 40 are respectively disposed on opposite sides of the moving direction of the main cutting member 30; the auxiliary cutting element 40 has a rising state and a falling state in the vertical direction in the cutting process, when the auxiliary cutting element 40 is in the rising state, the bottom of the auxiliary blade 41 is higher than the element to be cut 002, and when the auxiliary cutting element 40 is in the falling state, the auxiliary blade 41 elastically stops against the bearing element 001; the main cutter 30 is moved to cut the member to be cut 002, and the sub-cutter 40 positioned at the front side of the main cutter 30 is in a raised state and the other sub-cutter 40 positioned at the rear side of the main cutter 30 is in a lowered state in the moving direction of the main cutter 30.

The auxiliary cutting member 40 further includes a lifting member 45, the lifting member 45 is disposed on the moving mechanism 20, an output end of the lifting member 45 is connected to the fixing seat 42, so as to control the auxiliary blade 41 to be in a lifting state and a descending state, and the lifting member 45 is an air cylinder.

The method of use of the embodiments of the invention is described below:

the cutting process is as follows: an extruder (not shown) continuously extrudes the concrete wall plate, which is placed on the template, when the template runs to a position where the proximity sensor detects a signal, the lifting piece 45 lifts the auxiliary blade 41, so that the auxiliary blade 41 on the left side does not contact the concrete wall plate, and the rodless cylinder pushes the main blade 31 rotating at a high speed and the auxiliary blade 41 on the right side to move along a direction perpendicular to the movement direction of the concrete wall plate, so that the concrete wall plate is completely cut. Thereafter, the left lifter 45 lowers the left sub-blade 41, and the right lifter 45 lifts the right sub-blade 41 so that the right sub-blade 41 does not contact the concrete wall panel. When the proximity sensor detects a signal, the main blade 31 is reversed, and the rodless cylinder reversely pushes the main blade 31 rotating at a high speed and the auxiliary blade 41 on the left side to move along the direction perpendicular to the moving direction of the concrete wallboard, so that the concrete wallboard is completely cut.

In summary, in embodiment 2, the moving mechanism 20 drives the main cutting member 30 and the auxiliary cutting member 40 to move left and right, when cutting along the left-to-right direction, the auxiliary cutting member 40 on the right side is in a raised state, and the bottom of the auxiliary blade 41 is higher than the member to be cut 002; when cutting along the direction from right to left, left vice cutting member 40 is in the decline state, and right side vice cutting member 40 is in the state of rising, can realize two-way cutting through this mode, shortens the stroke distance among the cutting process, saves time, improves cutting efficiency.

Example 3

As shown in fig. 5 to 11, the structure of a cutting device 100 is disclosed in embodiment 3, and the cutting device 100 of embodiment 3 has substantially the same structure as the cutting device 100 of embodiment 1, and the same parts are not explained here.

In contrast, in embodiment 3, there are two sub-cutting members 40, and the two sub-cutting members 40 are respectively provided on opposite sides of the moving direction of the main cutting member 30; the auxiliary cutting element 40 has a rising state and a falling state in the vertical direction in the cutting process, when the auxiliary cutting element 40 is in the rising state, the bottom of the auxiliary blade 41 is higher than the element to be cut 002, and when the auxiliary cutting element 40 is in the falling state, the auxiliary blade 41 elastically stops against the bearing element 001; the main cutter 30 is moved to cut the member to be cut 002, and the sub-cutter 40 positioned at the front side of the main cutter 30 is in a raised state and the other sub-cutter 40 positioned at the rear side of the main cutter 30 is in a lowered state in the moving direction of the main cutter 30.

The main cutting members 30 are two, the two main cutting members 30 are spaced apart in the moving direction, the two main cutting members 30 are located between the two sub-cutting members 40, the main blade 31 is a rotary saw blade having independent driving, and the rotation directions of the main blades 31 of the two main cutting members 30 are opposite.

In embodiment 3, moving mechanism 20 drives main cutting member 30 and vice cutting member 40 and moves about, when cutting, left main cutting member 30 and vice cutting member 40 can move right, cut half width of treating cutting member 002, transfer the moving direction of main cutting member 30 this moment, main cutting member 30 and vice cutting member 40 on right side move left, treat another half width of cutting member 002, just so can solve the problem of cutting easily adhesion, can also solve the problem of cutting the easy broken edge of department.

Other constructions and the like and operation of the cutting device 100 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cutting device, comprising:

the cutting machine comprises a machine frame, a cutter and a cutter support, wherein the machine frame is used for placing a support, and the support is used for placing a to-be-cut piece;

the cutting device comprises a main cutting part and an auxiliary cutting part, wherein the main cutting part and the auxiliary cutting part are movably arranged on the machine frame, can move from one side of the part to be cut to the other side, and are positioned at the rear end of the main cutting part along the moving direction of the main cutting part; wherein,

the main cutting piece comprises a main blade and is used for cutting the piece to be cut, and a fourth gap is formed between the bottom of the main blade and the supporting piece in the cutting process;

the secondary cutting part comprises a secondary blade, the secondary blade moves along the cutting track of the primary blade to cut the piece to be cut, and the bottom of the secondary blade is elastically stopped on the bearing part during the cutting process.

2. The cutting device according to claim 1, wherein the number of the secondary cutting members is two, and the two secondary cutting members are respectively provided on opposite sides of the moving direction of the main cutting member; wherein,

the auxiliary cutting part has a rising state and a falling state in the vertical direction in the cutting process, when the auxiliary cutting part is in the rising state, the bottom of the auxiliary blade is higher than the part to be cut, and when the auxiliary cutting part is in the falling state, the elasticity of the auxiliary blade is stopped against the bearing part;

the main cutting member moves to cut the member to be cut, and the sub-cutting member located at the front side of the main cutting member is in the raised state and the other sub-cutting member located at the rear side of the main cutting member is in the lowered state in the moving direction of the main cutting member.

3. The cutting device of claim 2, wherein the frame is a carriage, the conveyor having rollers to convey the support;

the cutting device further comprises a detection piece, the detection piece is arranged on the conveying frame, and when the detection piece detects the piece to be cut, the two auxiliary cutting pieces are respectively in the rising state and the descending state.

4. The cutting device of claim 1, wherein the secondary cutting member further comprises:

a fixed seat;

the mounting base is connected with a plurality of elastic pieces, a mounting area is defined by the mounting base and a plurality of joints of the elastic pieces, the auxiliary blade is arranged below the mounting base, and the projection of the auxiliary blade on the mounting base passes through the center of the mounting area; the other ends of the elastic pieces are connected to the fixed seat.

5. A cutting device according to claim 1, wherein there are two primary cutting members and two secondary cutting members, the two primary cutting members being spaced apart in the direction of movement, the two primary cutting members being located between the two secondary cutting members, the primary blades of the two primary cutting members being of opposite sense.

6. The cutting device of claim 1, further comprising:

the main body frame is arranged on the rack in a manner of horizontally moving along the transportation direction, and the two opposite sides of the main body frame in the transportation direction are respectively provided with a positioning mechanism; wherein, a transportation unit is defined, the transportation unit comprises one piece to be cut and one bearing piece, the transportation unit is supported on the frame and horizontally displaces along the transportation direction, the transportation direction is horizontally crossed with the moving direction of the main cutting piece, the positioning mechanisms at two sides can respectively abut against two opposite sides of the transportation unit, so that the main body frame and the transportation unit jointly displace along the transportation direction;

the moving mechanism is arranged on the main body frame, and the main cutting part and the auxiliary cutting part are arranged on the output end of the moving mechanism.

7. The cutting device of claim 6, wherein the positioning mechanism comprises:

the positioning piece is arranged on the rack and used for respectively abutting against two opposite sides of the to-be-cut piece;

the clamping piece is rotatably arranged on the main body frame and has a clamping state and an opening state, when the clamping state is achieved, the clamping piece rotates and is abutted against two opposite sides of the supporting piece, so that the main body frame and the supporting piece are jointly displaced along the conveying direction, and when the clamping piece is achieved, the clamping piece is separated from the supporting piece.

8. The cutting device of claim 7, wherein the positioning member comprises:

the cutting knife comprises a first positioning piece and a second positioning piece, a third gap is formed between the second positioning piece and the first positioning piece, the main blade and the auxiliary blade can penetrate through the third gap to cut the piece to be cut, the main blade forms a cutting seam on the piece to be cut, and the first positioning piece and the second positioning piece are stopped and abutted on two sides of the cutting seam.

9. The cutting device of claim 8, wherein the first and second positioning members are identical in construction, the first positioning member comprising:

the first rod part is horizontally arranged, the upper surface of the bearing part is a horizontally arranged reference surface, and the first rod part is flush with the reference surface so that the upper surface of the first rod part serves as a reference adjusting surface;

the first positioning part is vertically connected to the first rod part to stop against the piece to be cut.

10. The cutting device of claim 6, further comprising:

push back the extensible member, it establishes to push back the extensible member in the frame, it connects to push back the extensible member main part frame, it has initial cutting position and next cutting position to wait to cut the piece, it drives in cutting process to wait to cut the main part frame and move along the direction of transportation and keep away from initial cutting position, after the cutting is accomplished push back the extensible member can with the main part frame pushes back to next cutting position.

11. The cutting device of claim 1, wherein the primary cutting member further comprises:

the safety cover, the safety cover has accepts the chamber, main blade establishes it just can independently rotate to accept the intracavity, main blade part stretches out accept the chamber in order to cut treat the cutting member, main blade's moving direction around both ends with accept and be formed with first clearance and second clearance between the chamber respectively, the length in first clearance is greater than the length in second clearance.

12. The cutting device of claim 1, wherein the upper surface of the support is a horizontally disposed reference surface, the fourth gap is formed between the bottom of the primary blade and the reference surface, and the bottom of the secondary blade extends below the reference surface.