CN111360319A

CN111360319A - Saw blade cutting unit with sawing and positioning functions and double-head saw cutting machine

Info

Publication number: CN111360319A
Application number: CN202010376100.XA
Authority: CN
Inventors: 唐明星
Original assignee: Hunan Jinlixing Machinery Technology Co ltd
Current assignee: Hunan Jinlixing Machinery Technology Co ltd
Priority date: 2019-06-11
Filing date: 2020-05-07
Publication date: 2020-07-03
Also published as: CN111390272A; CN212599349U; CN111360322A; CN111360320A; CN212665052U; CN212665053U; CN111360323A; CN110434396A; CN212665051U; CN212599348U; CN212599350U; CN111360321A

Abstract

The double-end saw cutting machine is characterized by comprising a saw blade cutting base, an angle adjusting seat and a saw blade cutting assembly; the saw blade cutting base is a rigid frame and comprises angle adjusting support plates, namely a front angle adjusting support plate and a rear angle adjusting support plate, which are respectively positioned at the front side and the rear side, the angle adjusting base comprises a main base body, and a front connecting arm and a rear connecting arm which are positioned at the two ends of the main base body, the saw blade cutting assembly comprises a saw blade driving motor and a metal circular saw blade, the metal circular saw blade is arranged on an output shaft of the saw blade driving motor, and the saw blade cutting assembly is arranged on the main base body in a manner of moving back and forth along the front-rear transverse direction; the metal circular saw blade has the beneficial technical effects that the metal circular saw blade is convenient to use under the condition of being debugged at different cutting angles, the cutting table and the saw slot position of the cutting table do not need to be changed, and the cut height and the cut length of the cut section are convenient to determine.

Description

Saw blade cutting unit with sawing and positioning functions and double-head saw cutting machine

Technical Field

The invention relates to a saw blade cutting unit and a double-end saw cutting machine applied to the same.

Background

The existing double-end saw cutting machine comprises a rack, and a fixed cutting unit, a movable cutting unit, a sliding rail and a material supporting frame which are arranged on the rack; the movable cutting unit can be arranged on the sliding rail in a sliding mode, and the material supporting frame moves along with the movable cutting unit. The fixed cutting unit and the movable cutting unit respectively comprise a saw blade driving motor, a guide mounting seat, a saw blade mounting shaft, a saw blade bearing, a saw blade, a belt pulley, a belt and a saw blade driving motor position adjusting seat for adjusting the distance between the saw blade driving motor and the saw blade bearing and adjusting the tension degree of the belt; the saw bit bearing sets up at direction mount pad front portion, and saw bit driving motor position adjusts the seat setting at direction mount pad rear portion, and saw bit driving motor fixes on saw bit driving motor position adjusts the seat, and the saw bit setting is at the front end of saw bit installation axle, and the rear end of saw bit installation axle and the front end of saw bit driving motor output shaft all are equipped with aforementioned belt pulley, and the belt passes through the belt pulley with saw bit driving motor and saw bit installation hub connection. Wherein, the output shaft of the saw blade driving motor is of a common structure, the side surface of the end part is provided with a pin slot, and the belt pulley is arranged on the pin slot in a matching way. Because this saw bit driving motor output shaft does not have the direct mount saw bit, need set up saw bit installation axle and saw bit bearing in addition and install the saw bit to, also need belt pulley and belt to come the transmission, it is not hard up because tensile in order to prevent the belt, need adjust saw bit driving motor and saw bit installation axle distance through adjusting saw bit driving motor position, lead to cutting assembly structure complicacy, high in production cost, the easy trouble, the reliability is low. And the belt transmission is adopted, so that the transmission efficiency is low, and the energy conservation and the environmental protection are not facilitated. Moreover, for relatively long section workpieces, the bearing capacity of the material support frame is limited, and the section workpieces cannot be completely supported. In addition, when the existing double-head saw is used for processing profile type workpieces, the deflection angle of the saw blade cannot be safely and conveniently determined, and the determination of the sawing basic position is also not convenient.

Disclosure of Invention

Aiming at the defects of the existing double-head saw cutting machine, the invention provides a saw blade cutting unit with saw cutting positioning function, which is characterized by comprising a saw blade cutting base, an angle adjusting seat and a saw blade cutting assembly; the saw blade cutting base is a rigid frame and comprises angle adjusting support plates, namely a front angle adjusting support plate and a rear angle adjusting support plate, which are respectively positioned at the front side and the rear side, the angle adjusting base comprises a main base body, and a front connecting arm and a rear connecting arm which are positioned at the two ends of the main base body, the saw blade cutting assembly comprises a saw blade driving motor and a metal circular saw blade, the metal circular saw blade is arranged on an output shaft of the saw blade driving motor, and the saw blade cutting assembly is arranged on the main base body in a manner of moving back and forth along the front-rear transverse direction;

a front rotating shaft is arranged on the front connecting arm, a rear rotating shaft is arranged on the rear connecting arm, the front end and the rear end of the angle adjusting seat are arranged on the front angle adjusting support plate and the rear angle adjusting support plate in a swinging mode through the front rotating shaft and the rear rotating shaft, the swinging axes of the front rotating shaft and the rear rotating shaft define a swinging axis Y0 of the angle adjusting seat, the swinging axis Y0 is transversely arranged in the front-rear direction, and the rotating center line of the metal circular saw blade is perpendicular to the swinging axis Y0; the main seat body deviates from the swinging axis Y0 and is positioned at the side position of the swinging axis Y0, so that the angle adjusting seat is in a crank arm shape, and the main seat body can revolve around the swinging axis Y0;

the metal circular saw blade is horizontally arranged on the front side of the rear angle adjusting support plate, the upper surface of the cutting table or the mathematically prolonged surface of the upper surface of the cutting table is positioned on the rotating axis Y0, the saw slots are arranged on the cutting table or positioned on the side edge of the cutting table, and the saw slots are defined on the swinging axis Y0.

The saw blade cutting base is a basic rigid frame of the whole saw blade cutting unit and is used for supporting the angle adjusting seat; the angle adjusting seat is a supporting base of the saw blade cutting assembly, and the saw blade cutting assembly comprises a saw blade driving motor and a metal circular saw blade. And the metal circular saw blade is arranged on the output shaft of the saw blade driving motor, so that the output shaft of the saw blade driving motor can directly drive the metal circular saw blade to rotate to cut the section bar when the saw blade driving motor rotates.

Wherein the front-back transverse direction defines a direction, i.e. a direction seen in front-back direction. Which is defined in the present invention with respect to the left-right longitudinal direction. In which the horizontal frame of the double-ended saw cutting machine and its guide rails, which will be mentioned later, are arranged in the left-right longitudinal direction, the movable cutting unit also moves in the left-right longitudinal direction. Secondly, in a specific embodiment, the front-back transverse direction may be a horizontal direction, or may not be a horizontal direction but a direction having a certain angle with a horizontal plane; in addition, in a specific embodiment, the front-back transverse direction may be a direction perpendicular to the left-right longitudinal direction, or may be a direction having a certain included angle, that is, a moving direction (not a rotating direction) of the saw blade driving motor may be a direction having a certain angle with the left-right longitudinal direction.

The swing axis of the front rotating shaft and the swing axis of the rear rotating shaft define the swing axis Y0, or the swing axis Y0 is defined on the front rotating shaft and the rear rotating shaft, so that the problem of precedence between the front rotating shaft and the rear rotating shaft does not exist, and a method and a structure for determining the swing axes of the front rotating shaft and the rear rotating shaft or determining the swing axis Y0 are provided from the design angle.

According to the above structure, the whole angle adjusting base rotates with the swing axis Y0 defined by the axes of the front and rear rotating shafts as the center, and the main base revolves around the swing axis Y0; the main body can revolve around the swing axis Y0, which does not mean that the main body must revolve around the swing axis Y0 within 360 °, and has such a capability and only revolves within 45 °, 90 ° or 180 ° according to the need of cutting angle adjustment. The crank arm-shaped structure of the angle adjusting seat can lead the main seat body and the swing axis Y0 to have a space between them, thereby being greatly convenient for providing a convolution avoiding space for the feeding of the metal circular saw blade.

The rotation center line of the metal circular saw blade is also the rotation center line of the output shaft of the saw blade driving motor (the output shaft on which the metal circular saw blade is mounted), and the rotation plane of the metal circular saw blade is a rotation plane which is positioned on the metal circular saw blade and is perpendicular to the rotation center line of the metal circular saw blade. The rotation plane of the metal circular saw blade is the rotation plane of the biting teeth part of the metal circular saw blade in theoretical design. The meat biting teeth are teeth which actually bite meat in all the saw blade teeth to finish cutting the section bar.

Wherein, since the rotation center line of the metal circular saw blade is perpendicular to the swing axis Y0, there are a great many strings parallel to the swing axis Y0 on the rotation plane of the metal circular saw blade, that is, there may be a great many cutting points, but there is only one maximum string located at the maximum diameter, the teeth for cutting the profile located at both ends of the maximum string are the maximum rotation cutting reference points, and the maximum string may be located on the swing axis Y0 (this structure has the maximum rotation cutting reference point also located on the swing axis Y0) or may be higher or lower than the swing axis Y0 (this structure has the maximum rotation cutting reference point not located on the swing axis Y0). In this way, the cutting point of the circular metal saw blade is always located on the pivot axis Y0, irrespective of the deflection on the angle adjustment seat. Thus, the starting point of the cut profile can be determined by using the swing axis Y0 as a reference, so that the length of the cut profile can be accurately calculated, and the structure of the whole machine can be simplified.

The cut profile has left and right end parts after being cut, the lowest point or the highest point of the end surface is the position formed by cutting chips of the cutting point in practical application, namely, the rotary cutting point of the metal circular saw blade is the tooth part corresponding to the lowest point or the highest point of the end surface of the cut profile, and the lowest point or the highest point of the end surface of the cut profile is also positioned on the swing axis Y0.

The kerf is defined on the swing axis Y0, that is, the extending direction of the kerf is the same as the extending direction of the swing axis Y0, the kerf is arranged on the swing axis Y0, the kerf is an avoidance groove with a certain width, and the swing axis Y0 belongs to one of lines in the kerf, so that the metal circular saw blade can extend into or withdraw from the kerf.

The mathematically extended surface of the cutting table is a virtual extended surface drawn mathematically based on the upper surface of the cutting table, and the extended surface and the upper surface of the cutting table are coplanar. Thus, the upper surface of the cutting table is not only the positioning surface of the cut section, but also is a reference for determining the cut height of the cut section mathematically. Wherein the upper surface of the cutting table or its mathematically elongated surface is located at the rotation axis Y0, meaning that the rotation axis Y0 falls on the upper surface of the cutting table or its mathematically elongated surface, and the rotation axis Y0 not only extends along the upper surface of the cutting table or its mathematically elongated surface but also has the same height.

Since the saw kerf is defined on the pivot axis Y0, the plane of rotation of the metal circular saw blade at the biting point is maintained at the pivot axis Y0, and this structure is not changed even when the angle adjustment base pivots. It is also acceptable that there may be some mounting or machining variation between them in a real product, for example, a variation of around ± 3 mm, and a smaller value of the variation means a higher machining accuracy of the machine. If the rotation center line of the metal circular saw blade is higher or lower than the rotation axis Y0, only the position of the biting serrated part of the metal circular saw blade is changed, and the rotation plane of the biting serrated part of the metal circular saw blade is not separated from the rotation axis Y0 in a theoretical design, namely the rotation plane of the biting serrated part of the metal circular saw blade is always located on the rotation axis Y0.

According to the technical scheme, the beneficial technical effects are that firstly, the position of the cutting table and the saw slits of the cutting table are not required to be changed when the metal circular saw blade is debugged at different cutting angles, and the cut height and the cut length of the cut profile are convenient to determine; secondly, the upper surface of the cutting table or the extension surface thereof is positioned on the swinging axis Y0, so that the upper surface or the extension surface of the cutting table can be directly used as a positioning reference of the cut section bar, and the cut height and the cut length of the section bar can be calculated conveniently; thirdly, the angle adjusting seat can rotate under the pushing of the angle adjusting cylinder, so that the deflection angle of the metal circular saw blade can be flexibly adjusted to be suitable for cutting sectional materials with different angles; fourthly, because the metal circular saw blade is directly installed on the output shaft of the saw blade driving motor, the driving mechanism is simplified, and the efficiency is improved.

The technical scheme can also be that an angle adjusting cylinder is arranged between the saw blade cutting base and the angle adjusting seat and used for pushing the angle adjusting seat to swing so as to adjust or determine the inclination angle of the saw blade conveniently.

The technical scheme includes that the cutting table further comprises a material blocking backup plate, the material blocking backup plate is vertically arranged on the front side of the cutting table and connected to the rear angle adjusting support plate or the cutting table, the material blocking backup plate and the cutting table form a right-angle structure, and the material blocking backup plate and the cutting table are combined to support and position cut sectional materials.

The further technical scheme can also be that the saw blade cutting device comprises a blocking arm, wherein the blocking arm is detachably connected to the saw blade cutting base and is positioned on the swing track of the angle adjusting seat; the blocking arm is used for limiting the maximum swing amplitude of the angle adjusting seat which can be realized under the pushing of the angle adjusting cylinder before the angle adjusting seat is fixed by the angle adjusting nut handle from the mechanical limiting angle. The stop arm can comprise a connecting seat connected with the saw blade cutting base and a buffer arranged on the connecting seat, and the buffer is used for abutting against the angle adjusting seat; the buffer can be made of impact-resistant non-metallic materials such as graphite and plastic, so that the buffer is not hard to touch.

The technical scheme can be that an arc angle adjusting groove hole is formed in the front angle adjusting support plate or the rear angle adjusting support plate, an angle adjusting hinge shaft is connected to the lower portion of the angle adjusting seat, one end of the angle adjusting hinge shaft extends out of the arc angle adjusting groove hole, an external thread is arranged on the outward extending portion of the angle adjusting hinge shaft, a step is arranged on the angle adjusting hinge shaft, a locking gasket and an angle adjusting nut handle are sleeved on the outward extending portion over the angle adjusting support plate, and the step, the locking gasket and the angle adjusting nut handle are matched and screwed on the angle adjusting support plate and used for fixing the angle adjusting seat from the angle of mechanical positioning and determining the inclination angle of the angle adjusting seat. Therefore, the metal circular saw blade can be determined at different deflection angles, so that the deflection angle can be adjusted and maintained conveniently.

The saw blade cutting assembly is arranged on the transverse sliding cutting seat, and the transverse sliding cutting seat is arranged on the angle adjusting seat in a manner of being capable of sliding along the front-back transverse direction; the transverse propelling cylinder is arranged between the transverse sliding cutting seat and the angle adjusting seat and used for propelling the saw blade driving motor and the saw blade to move along the front-back transverse direction. According to the scheme, the transverse propelling cylinder can be used for propelling the saw blade driving motor to move (not rotate) along the front-back transverse direction, namely the direction of the swinging axis Y0.

The further technical scheme can also be that the device further comprises a pressing assembly, wherein the pressing assembly comprises a transverse pressing assembly and a vertical pressing assembly, and the transverse pressing assembly and the vertical pressing assembly are used for pressing the cut section bars from two different vertical and transverse angles which are perpendicular to each other; the transverse compressing assembly and the vertical compressing assembly comprise compressing assemblies, each compressing assembly comprises a compressing cylinder and an elastic compressing head arranged on a cylinder rod of the compressing cylinder, and the elastic compressing heads are located in an operation space above the cutting table.

The technical scheme can be further characterized in that the compressing assembly further comprises a compressing fixing seat, a longitudinal position adjusting groove is formed in the compressing fixing seat, a compressing adjusting screw handle is arranged on the longitudinal position adjusting groove, a clamping hole for fixing the compressing cylinder is formed in the upper end of the compressing fixing seat, an elastic adjusting groove communicated with the clamping hole is formed in the upper end of the compressing fixing seat, adjusting threaded holes are formed in two sides of the elastic adjusting groove, the elastic adjusting screw handle is arranged in the adjusting threaded holes, the compressing cylinder is clamped in the clamping hole, and the elastic compressing head is arranged on the compressing cylinder.

The technical scheme includes that a safety shield capable of being turned over is arranged above the cutting table and used for covering the saw kerf position of the cut section bar to prevent saw dust from splashing when the cutting table is used for cutting.

Further technical scheme can also be, still include the shielding plate, be provided with on the shielding plate and be used for letting the saw bit that the saw bit passed dodges the seam, the shielding plate is connected to on the angle adjustment seat and can follow the swing of angle adjustment seat, the shielding plate is located the rear of metal circular saw blade, thereby the saw bit dodges the seam and is located thereby work as on the rotation plane of metal circular saw blade can stretch into or withdraw from when the lateral shifting around along the metal circular saw blade the seam is dodged to the saw bit.

The shielding plate can be directly mounted on the angle adjusting seat, or can be indirectly mounted on the angle adjusting seat by being connected with other components mounted on the angle adjusting seat.

The metal circular saw blade is characterized by further comprising a safety cover at least capable of containing the metal circular saw blade, the safety cover is detachably and vertically arranged on the angle adjusting seat, and the rear vertical wall body of the safety cover is the shielding plate.

In a further aspect, the shielding plate is located at the front side of the cutting table.

The invention also provides a double-head saw cutting machine which comprises a horizontal frame, a fixed cutting unit and a movable cutting unit, wherein the horizontal frame extends along the left-right longitudinal direction, the fixed cutting unit is fixedly arranged on the horizontal frame, the movable cutting unit is movably arranged on the horizontal frame along the left-right longitudinal direction, and the fixed cutting unit and the movable cutting unit are arranged on the left side and the right side and respectively comprise the saw blade cutting unit as claimed in any one of claims 1 to 12.

The technical scheme includes that the saw dust collecting device comprises a saw dust collecting slide rail, the saw dust collecting slide rail is detachably arranged on the side edge of the cutting table, a top inlet of the saw dust collecting slide rail is close to the saw slot position, and the saw dust collecting slide rail is used for collecting saw dust and cut section bar tails.

Wherein the top inlet of the sawdust recovery chute is close to the kerf position, and the first implementation case is that when the kerf is arranged on the cutting table, the top inlet of the sawdust recovery chute is overlapped on the cutting table and is close to the kerf position; secondly, when the sawdust recycling chute is combined with the cutting table, a gap is reserved between the sawdust recycling chute and the cutting table, and the gap is formed by the gap, the top end of the sawdust recycling chute is a boundary of the saw slot, and therefore the top end inlet of the sawdust recycling chute is close to the position of the saw slot.

Wherein the sawdust recovery chute has a chute for collecting and discharging the metal scraps sawed by the metal circular saw blade. In one embodiment of the process of the present invention,

the further technical scheme can also be that the cutting device further comprises a driving device, wherein the driving device comprises a sliding driving motor arranged on the movable cutting unit, a sliding driving speed reducer connected with an output shaft of the sliding driving motor, and a sliding driving gear in transmission connection with the sliding driving speed reducer; the horizontal rack is provided with a transmission rack, the sliding driving gear is in meshing transmission with the transmission rack, and the sliding driving motor is a servo motor and is used for driving the movable cutting unit to move to a specified position on the horizontal rack.

The automatic controller is connected with the data sampling device through signals, and the data sampling device is used for picking up the section length, the cutting angle and the cutting height data in the cutting direction of the cut section and transmitting the picked data to the automatic controller; the sliding driving motor is used for executing the command of the automatic controller to drive the movable cutting unit to move on the horizontal rack; the automatic controller is used for obtaining the distance data between the fixed cutting unit and the movable cutting unit according to the data provided by the data sampling device and driving the movable cutting unit to move to a specified position on the horizontal rack by controlling a sliding driving motor of the driving device so as to determine the specific space distance between the fixed cutting unit and the movable cutting unit. According to this solution, that is, first the automatic controller derives, within its program, the spacing data between the fixed cutting unit and the movable cutting unit, and then controls, according to this internal data, the movement of the movable cutting unit to the given position in order to determine the specific spatial distance between them.

The data sampling device comprises a material height measuring device in signal connection with the automatic controller, and the material height measuring device is used for detecting the cutting height of the cut section bar in the cutting direction and transmitting the detection data to the automatic controller; the data sampling device further comprises a control box, wherein a control button which is in signal connection with the automatic controller is arranged on the control box, and the control button is used for transmitting the data of the length and the cutting angle of the cut section bar, which are input by an operator, to the automatic controller in a man-machine conversation mode.

Drawings

The invention and the advantageous technical effects thereof are further explained in detail with reference to the accompanying drawings and the specific implementation method.

FIG. 1 is a perspective view of a double-ended saw cutter assembly of the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a rear view of fig. 1.

Fig. 4 is a right side view of fig. 1.

Fig. 5 is an enlarged view of fig. 4 at a.

Fig. 6 is a front view of the blade cutting unit.

Fig. 7 is a perspective view of fig. 6.

Fig. 8 is an internal view of fig. 7 with the rear angle adjustment plate 900b removed.

Fig. 9 is a perspective view of the swaging assembly.

Fig. 10 is a diagram showing an operation state in cutting the workpiece shown in fig. 1.

Fig. 11 is a perspective view of the blade cutting assembly.

Fig. 12 is a front view of fig. 11.

Fig. 13 is an exploded view of the saw blade mounted on the blade drive motor.

Fig. 14 is a front view of the material level measuring device.

Fig. 15 is a right side view of fig. 14.

Fig. 16 is an exploded perspective view of fig. 14.

Fig. 17 is an exploded perspective view of fig. 14 with the housing removed.

Fig. 18 is an enlarged view of fig. 17 at a.

Fig. 19 is a schematic structural view of a magnetic scale assembly.

Fig. 20 is a side view schematically showing the structure of the blade cutting unit 2.

Fig. 21 is an exploded view of the blade cutting unit 2.

Description of the labeling:

0-section bar workpiece, 1-horizontal frame, 2-saw blade cutting unit, 3-material height measuring device, 4-linear horizontal rail, 5-fixed seat, 6-sliding seat, 7-material supporting frame, 8-movable material frame, 9-electric cabinet frame and 10-control box; 11-transmission frame, 12-driving device; 13-a limiting seat, 14-a transmission rack, 15-a scale, 16-a fixed cutting unit, 17-a movable cutting unit, 18-an electric appliance cabinet and 19-an operation button;

120-slide drive motor, 121-slide drive reducer, 122-slide drive gear;

70-material supporting seats, 71-material supporting flat plates, 72-material supporting vertical plates, 73-material supporting roller rods and 74-transverse hole grooves;

80-I-shaped sliding seat, 81-lifting rod, 82-roller frame and 83-material frame roller rod;

20-a tilt angle adjustment assembly; 21-saw blade, 22-rotating plate, 23-fixing plate, 24-hinge, 25-ejector rod, 26-square ejector block, 27-saw blade driving motor, 28-guide mounting seat and 29-positioning nut; 210-a saw blade driving motor output shaft, 211-a fixing ring steel ring, 212-a circular clamping steel ring, 213-a locking nut, 214-an inner hexagonal auxiliary mounting hole, 215-a momentum compensating flywheel, 216-a baffle plate, 2016 a-a saw blade avoiding gap and 217-a safety cover; 30-a housing; 31-slide block, 32-measuring cylinder, 33-guide rail, 34-magnetic ruler seat, 35-magnetic sensor, 36-magnetic reading head seat, 37-movable pressing plate, 38-slide block mounting seat and 39-auxiliary backup plate; 310-auxiliary material pressing support plate, 3100-positioning reference plane of the auxiliary material pressing support plate, 311-digital display meter, 312-square fixing plate, 313-measuring component, 314-height measuring pressure plate component and 316-flexible magnetic scale; 317, a non-magnetic steel belt, 318, a protective steel belt, 319, a magnetic scale component, 320, a longitudinal scale groove, 321, a meter head mounting opening, 322, a longitudinal long groove, 324, a longitudinal groove, 325, a shell fixing part, 326, an opening backup plate square hole, 327, a pressure plate fixing part and 328, a pressure plate pressing part;

90-a saw blade cutting base, 91-an angle adjusting seat, 92-a transverse sliding cutting seat, 920-a supporting guide rail pair of the transverse sliding cutting seat, 93-a transverse propelling cylinder, 94-a saw blade cutting assembly, 95-a saw dust recycling slideway and 96-a material pressing assembly; 97-cutting table, 98-material stopping backup plate, 99-protective arm, 9 a-safety shield, 9 b-saw slot, 9 c-transparent observation window, 9 d-heat dissipation cover plate and 9 e-saw blade cover; the angle adjusting device comprises a 900 a-front angle adjusting support plate, a 900 b-rear angle adjusting support plate, a connecting plate body between the 900 c-front angle adjusting support plate and the rear angle adjusting support plate, a 901-arc angle adjusting groove and a 902-angle adjusting nut handle; 910-a main seat body of an angle adjusting seat, a front rotating shaft of a 911-angle adjusting seat, a rear rotating shaft of a 912-angle adjusting seat, a 911 a-front angle adjusting support plate rotating positioning hole, a 912 a-rear angle adjusting support plate rotating positioning hole, 913-a front connecting arm and 914-a rear connecting arm;

991-beam, 992-gas spring; 960-a transverse pressing component, 961-a vertical pressing component, 962-a pressing fixed seat, 963-a pressing air cylinder, 964-an elastic pressing head, 965-an elasticity adjusting groove, 966-a longitudinal position adjusting groove, 967-a pressing adjusting screw handle, 968-a clamping hole, 969-an adjusting threaded hole and 96 a-an elasticity adjusting screw handle;

970-an angle adjusting hinge shaft, 971-an angle adjusting cylinder and 972-a locking gasket; 973 a-left stop arm, 973 b-right stop arm, 974-step on the angular adjustment hinge, 975-outward extension of the angular adjustment hinge.

Detailed Description

The invention and its advantageous effects are explained in further detail below with reference to the drawings and preferred embodiments, wherein the description of the orientation and position is only for convenience of description relative to the position, not absolute.

Referring to fig. 1 to 4, a double-end saw cutting machine assembly comprises a

horizontal frame

1, 2 groups of saw blade cutting units 2 arranged along the left and right longitudinal extension, a material

height measuring device

3, 2 linear horizontal rails 4 arranged on the horizontal frame 1, a fixed seat 5, a sliding seat 6, a material supporting frame 7, a movable material frame 8, an electric cabinet frame 9, a control box 10, an automatic controller, a transmission frame 11, and a driving device 12 driving the sliding seat 6 to slide and controlled by the automatic controller. Wherein the automatic controller (also called central controller, CPU or PLC, not shown in the figure) is used to implement the overall control of the machine.

The middle of the top of the horizontal rack 1 is transversely provided with a trapezoidal groove structure, two sides of the trapezoidal groove structure are trapezoidal edges, 2 linear horizontal rails 4 are respectively arranged at the tops of the two trapezoidal edges along the left and right longitudinal directions, the right end part of each linear horizontal rail 4 is provided with a limiting seat 13, and the limiting seats 13 are used for preventing the movable rack 8 and the like from sliding out; the fixed seat 5 is fixed at the left end of the horizontal rack 1, and the sliding seat 6 is slidably arranged on the 2 linear horizontal rails 4 and is positioned at the right side of the fixed seat 5; the transmission frame 11 is fixed on the outer side of the trapezoidal edge of the horizontal rack 1, a transmission rack 14 is arranged in the transmission frame 11, a scale 15 is arranged on the upper portion of the transmission frame 11, and the scale 15 is used for helping a user to directly read the position of the movable cutting unit 17. In another embodiment, one of the transmission racks 14 may be disposed outside each of the two trapezoidal sides of the horizontal rack 1.

The left side of the horizontal rack 1 is fixedly connected with a fixed cutting unit 16 through the fixed seat 5, the right side of the fixed cutting unit 16 is provided with a movable cutting unit 17, and the movable cutting unit 17 is movably arranged on 2 linear horizontal rails 4 of the horizontal rack 1 in a left-right longitudinal sliding mode through the sliding seat 6 contained in the movable cutting unit 17. The fixed cutting unit 16 and the movable cutting unit 17 are distributed with one saw blade cutting unit 2, and the saw blade cutting unit 2 comprises a metal circular saw blade 21 for sawing, and is used for cutting one end of the section bar by using the metal circular saw blade 21 mounted on the metal circular saw blade 21.

In a conventional design, in order to achieve the basic function of cutting, the saw blade cutting unit 2 at least further includes a rigid frame (i.e., the saw blade cutting base 90 mentioned later), a saw blade driving motor disposed on the rigid frame, and the metal circular saw blade 21 is in transmission connection with an output shaft end of the saw blade driving motor. The fixed cutting unit 16 and the movable cutting unit 17 are arranged left and right, and 2 groups of the saw blade cutting units 2 are arranged on the horizontal frame 1 in a left-right opposite manner, so that one end of the section bar can be cut by one of the saw blade cutting units or two ends of the section bar can be cut by two of the saw blade cutting units.

The double-end saw cutting machine assembly further comprises a data sampling device, the data sampling device is in signal connection with the automatic controller, and the data sampling device is used for picking up the section length, the cutting angle and the cutting height data in the cutting direction of the cut section and transmitting the picked data to the automatic controller.

The driving device 12 is used for executing the command of the automatic controller to drive the movable cutting unit 17 to move left and right on the horizontal frame 1. The automatic controller is used for determining the distance data between the fixed cutting unit and the movable cutting unit according to the data provided by the data sampling device and driving the movable cutting unit 17 to move to a specified position on the horizontal frame 1 by controlling the driving device so as to determine the distance between the fixed cutting unit 16 and the movable cutting unit 17. According to this solution, that is, first the automatic controller calculates the spacing data between the fixed cutting unit 16 and the movable cutting unit 17 within its program, and then controls the movable cutting unit 17 to move to a specified position based on the internal spacing data to determine the specific spatial distance between them.

The data sampling device comprises the material height measuring device 3 and the control box 10, and the material height measuring device 3 and the control box 10 are used for respectively picking up parameters of the section for the automatic controller.

The material height measuring device 3 is connected to the sliding seat 6 or the rigid frame of the movable cutting unit 17, but may be positioned on the horizontal frame 1 and on the side of the movable cutting unit 17, i.e. the feeding side of the movable cutting unit 17, in other embodiments. The material supporting frame 7 is also connected to the sliding seat 6 or the rigid frame and is also positioned at the rear side of the material height measuring device 3, namely the feeding side of the material height measuring device 3. The movable material rack 8 can be slidably arranged at the right part of the 2 linear horizontal rails 4, and the material supporting rack 7 is opposite to the movable material rack 8 in the left-right direction. Due to the combination of the material support frame 7 and the movable material frame 8, the excess part of the material support 7 of the long section type workpiece can be supplemented and supported by the movable material frame 8. However, in other embodiments, neither the material holder 7 nor the movable material holder 8 may be provided or one of them may be selected, and the content of the specific arrangement must be determined according to the actual use of the product.

The driving device 12 is connected to the sliding seat 6 or the rigid frame and located outside the sliding seat 6, and drives the sliding seat 6 and the movable cutting unit 17 to slide left and right on the 2 linear horizontal rails 4 through meshing transmission with the transmission rack 14. The driving device 12 can comprise two structures, the first structure is a single driving structure, namely, the driving device 12 is arranged at one side edge of the horizontal type frame 1 and is meshed with one driving rack 14 to drive the driving device 12; the second is a dual-drive structure, that is, the driving devices 12 are respectively arranged at two sides of the horizontal machine frame 1 and are engaged with the driving racks 14 arranged at two sides of the horizontal machine frame 1 for driving. This second solution makes it possible to make the movable cutting unit 17 more stable to move left and right. In the second solution, the driving device 12 includes a driving motor, and gear boxes respectively disposed at two side positions of the horizontal machine frame 1, the driving motor is in transmission connection with one of the gear boxes, the two gear boxes are in transmission connection through an intermediate transmission shaft, a gear meshed with the transmission rack 14 is disposed on an output shaft of each gear box, and the intermediate transmission shaft is located at the bottom of the movable cutting unit 17 and spans across the horizontal machine frame 1.

The electric cabinet frame 9 is arranged on the left side of the horizontal rack 1 and actually positioned on the left side of the fixed cutting unit 16, and the electric cabinet 18 for installing a control electric appliance is arranged on the electric cabinet frame 9.

The control box 10 is mechanically connected to the horizontal rack 1 and extends out of the horizontal rack 1 and the side edges of the movable cutting units 17, the control box 10 is further provided with a control button 19, a starting switch, a display screen, an alarm device and the like, and is in signal connection with the automatic controller, wherein the control button 19 is used for man-machine conversation information communication and transmitting processing technical information to the automatic controller. In another embodiment, the console box 10 can also be mechanically connected to the sliding seat 6 or the movable cutting unit 17, a wire-passing slot is further provided at the side of the horizontal rack 1, and the strong and weak cables related to the console box 10 are all collected into the wire-passing slot and then connected to the control electrical appliances in the electrical cabinet 18.

The automatic controller comprises a single chip microcomputer or a CPU, can control all parts of the whole double-head saw cutting machine, and can also control only a plurality of important parts such as the fixed cutting unit 16, the movable cutting unit 17, the material height measuring device 3, the control box 10, the sliding driving motor 120 and the like. The automatic controller can be further used for determining the distance between the fixed cutting unit 16 and the movable cutting unit 17 according to the cut height data of the cut profile provided by the material height measuring device 3 and the data of the profile length, the cutting angle and the like of the cut profile input by an operator through the control button 19 on the control box 10 in a man-machine conversation mode. The automatic controller may be disposed in the console box 10, or in the electrical cabinet 18 or other suitable location, so as to meet the requirements of convenient installation, maintenance and wiring. A control switch is arranged in the electric appliance cabinet 18, and the automatic controller is also arranged in the electric appliance cabinet, and simultaneously controls the control switch. In electrical control, the control switch is also called a primary loop switch, and is used for controlling the on and off of a primary loop signal.

Referring to fig. 1 to 10, 20 and 21, the saw blade cutting unit 2 mainly includes a saw blade cutting base 90 (i.e., the aforementioned rigid frame), an angle adjusting seat 91, a transverse sliding cutting seat 92, a transverse pushing cylinder 93, a saw blade cutting assembly 94, a sawdust recycling chute 95, a material pressing assembly 96, a cutting table 97, a material blocking plate 98, a protection arm 99, a safety shield 9a, and the like. Wherein the content of the first and second substances,

referring to fig. 4 to 8, the saw blade cutting base 90 is an integrated rigid frame, and a heat dissipation cover plate 9d with heat dissipation holes is disposed on the left side, the saw blade cutting base 90 includes two angle adjustment support plates, namely, a front angle adjustment support plate 900a and a rear angle adjustment support plate 900b, disposed on both sides of the front and rear transverse directions, the front angle adjustment support plate and the rear angle adjustment support plate are support platforms of the angle adjustment seat 91, the angle adjustment seat 91 is a support platform of the transverse sliding cutting seat 92, the angle adjustment seat 91 is swingably disposed between the front and rear angle adjustment support plates (900 a, 900 b), and a swing axis Y0 of the angle adjustment seat 91 is disposed along the front and rear transverse directions; wherein the front angle adjusting support plate 900a and the rear angle adjusting support plate 900b are connected by a connecting plate body 900c to form an integrated rigid frame; the fixed cutting unit 16 is fixedly arranged on the horizontal frame through a first rigid body formed by a front angle adjusting support plate, a rear angle adjusting support plate and a connecting plate body, the movable cutting unit 17 is arranged on the linear horizontal rail 4 of the horizontal frame 1 in a sliding manner through a second rigid body formed by the front angle adjusting support plate, the rear angle adjusting support plate and the connecting plate body, and the driving device 12 for driving the movable cutting unit 17 to move left and right is arranged on the second rigid body.

As shown in fig. 7, 20 and 21, the rear angle adjustment bracket 900b is provided with an arc angle adjustment slot 901 and a rear rotation positioning hole 912a, and the front angle adjustment bracket 900a is provided with a front rotation positioning hole 911 a. In another equivalent embodiment, the arcuate angle adjustment slots 901 can also be provided in the front angle adjustment strip 900 a.

As shown in fig. 21, the angle adjustment base 91 includes a main base body 910, and a front connecting arm 913 and a rear connecting arm 914 located at two ends of the main base body, the main base body 910 is used for carrying the transverse sliding cutting base 92 and the blade cutting assembly 94 thereon, a front rotating shaft 911 is disposed on the front connecting arm 913, a rear rotating shaft 912 is disposed on the rear connecting arm 914, two ends of the angle adjustment base 91 are respectively swing-disposed in the front rotation positioning hole 911a and the rear rotation positioning hole 912a through the front rotating shaft 911 and the rear rotating shaft 912, and rotation axes of the front rotation positioning hole 911a (the front rotating shaft 911) and the rear rotation positioning hole 912a (the rear rotating shaft 912) define the swing axis Y0; next, the swing axis Y0 defined by the front rotating shaft 911 and the rear rotating shaft 912 is located at the side position of the main seat body 910 and is arranged horizontally in the front-rear direction, so that the angle adjusting seat 91 is in a crank arm shape, and the main seat body 910 can revolve around the swing axis Y0 defined by the front rotation positioning hole 911a and the rear rotation positioning hole 912 a.

As shown in fig. 21, an auxiliary positioning shaft 901b is disposed at a position appropriately far from the front rotating shaft 911, an axis of the auxiliary positioning shaft 901b is parallel to an axis of the front rotating shaft 911, an auxiliary arc-shaped hole 901a adapted to the auxiliary positioning shaft 901b is disposed on the front angle adjusting support plate 900a, one end of the auxiliary positioning shaft 901b is connected to the main body 910, and the other end is inserted into the auxiliary arc-shaped hole 901a, and when the main body 910 swings, the auxiliary positioning shaft 901b can move in the auxiliary arc-shaped hole 901a under the guidance of the auxiliary arc-shaped hole 901 a. Therefore, the auxiliary positioning shaft 901b is matched with the auxiliary arc-shaped hole 901a, so that the stability of the main base body 910 during swinging is greatly improved.

Further, the arrangement in which the rotation center line of the metal circular saw blade 21 is perpendicular to the swing axis Y0 may be a cross arrangement (i.e., the maximum rotational cutting reference point K0 of the metal circular saw blade 21 in the direction of the swing axis Y0 is also located on the swing axis Y0) or a staggered arrangement in the up-down direction (e.g., the rotation center line of the metal circular saw blade 21 is higher than the swing axis Y0, and the maximum rotational cutting reference point K0 of the metal circular saw blade 21 in the direction of the swing axis Y0 is higher than the swing axis Y0).

Here, the rotation center line of the metal circular saw blade 21 is also the rotation center line of the output shaft of the saw blade driving motor 27 (the output shaft to which the metal circular saw blade 21 is attached), and the rotation plane of the metal circular saw blade 21 is a rotation plane which is located on the metal circular saw blade 21 and is perpendicular to the rotation center line of the metal circular saw blade 21. In the theoretical design, the rotation plane of the metal circular saw blade 21 refers to the rotation plane of the biting teeth. The biting teeth are the teeth which actually complete the cutting of the profile in all the blade teeth. Since the center line of rotation of the metal circular saw blade 21 is perpendicular to the swing axis Y0 and since the saw cuts 9b are parallel to the swing axis Y0 and defined on the swing axis Y0, the rotation plane actually defining the biting and cutting portion of the metal circular saw blade 21 is always maintained on the rotation axis Y0 in the theoretical design, but a deviation of about ± 1 mm may be acceptable in the actual product. For this purpose, there are a very large number of strings parallel to the axis of oscillation Y0 in the plane of rotation of the metal circular saw blade 21, i.e. there may be a very large number of cutting points, but only one maximum string Y1 at the maximum diameter, the teeth for cutting the profile at both ends of the maximum string being the maximum rotary cutting reference point KO; if the maximum chord line Y1 is also located on the swing axis Y0 (both overlap each other), that is, the maximum rotation cutting reference point KO is also located on the swing axis Y0. No matter how the metal circular saw blade 21 is deflected on the angle adjustment seat 91, a string to be cut (for example, the maximum string Y1 or another string) is always located on the pivot axis Y0. Thus, the starting point of the cut profile can be determined by using the swing axis Y0 as a reference, so that the length of the cut profile can be accurately calculated. According to the scheme, the swing axis Y0 is designed, so that the design and calculation can be simplified, and the whole machine structure can be simplified. Secondly, the cut profile has left and right end parts after cutting, the lowest point or the highest point of the end surface is the position formed by the meat which is cut in the beginning by rotation in practical application, that is, the swing axis Y0 is the tooth part corresponding to the lowest point or the highest point of the end surface of the cut profile, and the lowest point or the highest point of the end surface of the cut profile is also positioned on the swing axis Y0. According to the technical scheme, the position of the cutting table 97 and the saw slits 9b thereof is not required to be changed when the metal circular saw blade 21 is debugged at different cutting angles, and the cut height and the cut length of the cut section bar are determined conveniently.

Because the angle adjustment seat 91 is crank-shaped, when the saw blade cutting assembly 94 is mounted in place, the rotation center line of the metal circular saw blade 21 is perpendicular to the swing axis Y0, the position of the rotation center line of the metal circular saw blade 21 can be offset from the swing axis Y0, and the rotation plane of the biting teeth of the metal circular saw blade 21 is also located on the swing axis Y0, so that no matter which angle the angle adjustment seat 91 swings and positions, the rotation plane of the metal circular saw blade 21 is always parallel to and intersects with the swing axis Y0, and the metal circular saw blade 21 can always extend into the saw slot 9b, so that the cutting table 97 can be fixedly connected with the saw blade cutting base 90. The main holder body 910 can revolve around the swing axis Y0, which does not mean that the main holder body 910 must revolve around the swing axis Y0 within a range of 360 °, but has such a capability and is only provided according to the requirement of cutting angle adjustment, for example, within a range of 45 °, 90 ° or 180 °. The crank arm-shaped structure can lead a space to be arranged between the main base body 910 and the swinging axis Y0, thereby being greatly convenient for providing a rotary avoiding space for feeding the metal circular saw blade 27.

As shown in fig. 20 and 21, the saw blade protection device further comprises a safety cover 217, wherein the safety cover 217 contains the saw blade driving motor 27 and the metal circular saw blade 21, and the safety cover 217 is detachably and vertically arranged on the angle adjusting seat 91; the rear vertical wall body of the safety cover 217 is a shielding plate 216 vertically installed, a saw blade avoiding slit 216a for allowing the metal circular saw blade 21 to pass through is formed in the shielding plate 216, the shielding plate 216 is located behind the metal circular saw blade 21, and the saw blade avoiding slit 216a is located on a rotating plane of the metal circular saw blade 21, so that when the saw blade driving motor 27 and the metal circular saw blade 21 move back and forth in the transverse direction, the metal circular saw blade 21 can extend into or withdraw from the saw blade avoiding slit 216 a.

Wherein the safety cover 217 and the shielding plate 216 are located at the front side of the cutting table 97 but can rotate relative to the cutting table 97, the shielding plate 216 and the cutting table 97 are arranged perpendicular to each other, and the saw blade avoiding slit 216a and the saw slit 9b are kept continuous when seen from the front view direction. Secondly, in another mounting structure, the shielding plate 216 may be a separate member directly detachably mounted on the angle adjusting seat 91. Since the shielding plate 216 is detachably fixed to the angle adjustment base 91 and the blade cutting assembly 94 is movable on the angle adjustment base 91 in the front-rear direction, the circular saw blade 21 can be moved relative to the shielding plate 216 and can be inserted into or withdrawn from the blade escape slit 216 a. The shielding plate 216 can prevent foreign matters such as sawdust from entering the angle adjusting seat 91, thereby improving safety.

An angle adjusting hinge shaft 970 is arranged at the lower part of the angle adjusting seat 91, an angle adjusting cylinder 971 for driving the angle adjusting seat 91 to swing is arranged below the angle adjusting seat 91, the tail part of the angle adjusting cylinder 971 is hinged on a connecting plate body 900c of the saw blade cutting base 90, a push rod of the angle adjusting cylinder 971 is hinged on the angle adjusting hinge shaft 970, the outer end of the angle adjusting hinge shaft 970 extends outwards from the arc-shaped angle adjusting slot hole 901, an outwards extending part 975 of the angle adjusting hinge shaft 970 is provided with an external thread, the diameter of the outwards extending part 975 is smaller than that of the other parts, so that a step 974 is formed on the angle adjusting hinge shaft 970, and the outer diameter of the step 974 is larger than the width of the arc-shaped angle adjusting slot hole 901; the outward extension portion 975 of the outward extension portion 975 crossing the rear angle adjustment support plate 900b is sleeved with a locking washer 972 and screwed with the angle adjustment nut handle 902, and the step 974, the locking washer 972 and the angle adjustment nut handle 902 are respectively arranged on the inner side and the outer side of the rear angle adjustment support plate 900b, so that when the angle adjustment seat 91 is fixed from a mechanically positioned angle and an inclination angle of the angle adjustment seat is determined, the angle adjustment cylinder 971 pushes the angle adjustment seat 91 to further lock a deflection angle of the angle adjustment seat 91 on the basis of deflection. In another embodiment, the step 974 may be formed by welding a flange having an outer diameter greater than that of the angle adjusting hinge shaft 970.

As shown in fig. 20 and 21, the front angle adjusting device further includes a left blocking arm 973a and a right blocking arm 973b (not visible in fig. 7 and 8 due to being blocked) detachably connected to the front angle adjusting support plate 900a, the left blocking arm 973a and the right blocking arm 973b are arranged at left and right intervals and located on a swing track of the angle adjusting seat 91, and the blocking arms (973 a and 973 b) are used for limiting a maximum swing or an angle that the angle adjusting seat 91 can achieve when pushed by the angle adjusting cylinder 971, such as 30 °, 45 °, 60 °, 90 °, and the like before being fixed by the angle adjusting nut handle 902 from a mechanical limit angle. Before the fixed positioning of the angle adjustment seat 91 and the deflection angle of the metal circular saw blade 21 is realized, the maximum swing of the angle adjustment seat 91 in the positive or negative direction pushed by the angle adjustment cylinder 971 is limited by the stop arms (973 a, 973 b) (at this time, the left stop arm 973a or the right stop arm 973b applies a reverse acting force to the angle adjustment seat 91 to stop the angle adjustment seat 91 from continuing to rotate), or the maximum swing formed by the self-resetting of the angle adjustment seat 91 in the positive or negative direction is limited by the stop arms (973 a, 973 b). The locking is implemented on the basis of the limitation of the maximum swing amplitude, so that the convenience is realized, the positioning precision is high, and the locking difficulty is reduced. In another embodiment, the left and right blocking

arms

973a and 973b may be detachably connected to the front and rear

angle adjustment brackets

900a and 900b, respectively, or all of them may be detachably connected to the rear angle adjustment bracket 900 b.

The blocking arms (973 a, 973 b) may include a connection seat connected to the saw blade cutting base 90 and a buffer provided on the connection seat, the buffer being used to abut against the angle adjustment seat 91; the buffer can be made of impact-resistant non-metallic materials such as graphite and plastic, so that the buffer is not hard to touch.

Referring to fig. 6 to 8, the transverse sliding cutting block 92 is arranged on a supporting guide rail pair 920 on the angle adjusting block 91 in a manner of being capable of moving back and forth in a transverse direction, the supporting guide rail pair 920 comprises a guide rail fixed on the angle adjusting block 91 and a slide block slidably arranged on the guide rail, and the transverse pushing cylinder 93 is connected and arranged between the transverse sliding cutting block 92 and the angle adjusting block 91 and used for pushing the transverse sliding cutting block 92 to slide transversely on the angle adjusting block 91; the blade driving motor 27 of the blade cutting assembly 94 is disposed on the transversely sliding cutting base 92, and the blade driving motor 27 is used for driving the metal circular saw blade 21 to rotate and carrying the metal circular saw blade 21 to move in the front-rear transverse direction.

Referring to fig. 4 to 8, a cutting table 97 and saw slits 9b are also included. Wherein the saw slits 9b are horizontally arranged in the front-rear transverse direction and parallel to the rotation axis Y0 and defined on the swing axis Y0, the saw slits 9b have a width so as to facilitate the insertion or withdrawal of the metal circular saw blade 21 in the front-rear transverse direction, so that not only the saw blade drive motor 27 can carry the metal circular saw blade 21 in the front-rear transverse direction into or out of the saw slits 9b, but also the saw slits 9b can be inserted regardless of the deflection of the metal circular saw blade 21. The kerf 9b is defined on the pivot axis Y0 in that the kerf 9b is arranged on the pivot axis Y0 or in that the kerf 9b is arranged in the direction defined by the pivot axis Y0, for which purpose the pivot axis Y0 belongs to one of the lines lying in the kerf 9b, since the kerf 9b has a certain working width. The saw slot 9b can be arranged on the cutting table 97 and the top entrance of the sawdust recovery chute 95 is close to the position of the saw slot 9 b; the meaning includes two implementation cases, the first is that when the saw slot 9b is arranged on the cutting table 97, the top inlet of the sawdust recovery chute 95 overlaps the cutting table 97 and approaches the position of the saw slot 9 b; secondly, when the saw dust recovery chute 95 is combined with the cutting table 97, a gap is reserved between the saw dust recovery chute 95 and the saw slit 9b is formed by the gap, the top end of the saw dust recovery chute 95 is a boundary of the saw slit 9b, and therefore the top end entrance of the saw dust recovery chute 95 is close to the position of the saw slit 9 b. The sawdust recovery chute 95 has an inner chute for collecting and discharging the sawdust sawn by the metal circular saw blade 21 and the cut-out section bar end material, and the sawdust recovery chute 95 is overlapped to the cutting table 97 in a manner inclined from the rear to the front and engages with the saw slits 9 b.

The cutting table 97 is disposed on a rear angle adjusting plate 900b of the saw blade cutting base 90 and in a space between the saw blade driving motor 27 and the rear angle adjusting plate 900b, that is, the cutting table 97 is located at a front side of the rear angle adjusting plate 900b, the cutting table 97 is horizontally disposed, and, if the saw slot 9b is disposed on the cutting table 97, an upper surface of the cutting table 97 is located at the rotation axis Y0; if the kerf 9b is arranged between the cutting table 97 and the sawdust recovery chute 95, the kerf 9b and the rotation axis Y0 are located at the side of the upper surface of the cutting table 97, and the mathematically extended surface of the upper surface of the cutting table 97 is also located at the rotation axis Y0. The mathematically extended surface of the cutting table 97 means a virtual extended surface mathematically drawn based on the upper surface of the cutting table 97, and the extended surface is the same plane as the upper surface of the cutting table 97. Thus, the upper surface of the cutting table 97 is not only the positioning surface of the cut profile, but also the mathematical reference for determining the cut height of the cut profile. Wherein, the upper surface of the cutting table 97 or the mathematically extended surface thereof is located at the rotation axis Y0, which means that the rotation axis Y0 falls into the upper surface of the cutting table 97 or the mathematically extended surface thereof, and the rotation axis Y0 not only extends along the upper surface of the cutting table 97 or the mathematically extended surface thereof but also has the same height.

The cutting table 97 is arranged on the front side of the rear angle adjusting support plate 900b, and the material blocking backup plate 98 is vertically arranged on the front side of the cutting table 97; the material blocking backup plate 98 is vertically arranged on the rear angle adjusting support plate 900b or vertically arranged on the cutting table 97, the material blocking backup plate 98 and the cutting table 97 form a right-angle structure, and the material blocking backup plate 98 and the cutting table 97 are combined to be used for supporting and positioning cut sections.

Guard arm 99 is the arc arm structure, guard arm 99 sets up saw bit cutting base 90's front portion, guard arm 99 top is equipped with to the crossbeam 991 that saw bit cutting base 90 rear portion extended, safety guard 9a articulates on the crossbeam 991 and will cutting bed 97 covers in the safety guard 9a, it has air spring 992 to articulate between crossbeam 991 and the safety guard 9a inboard, air spring 992 is used for the drive safety guard 9a is in the upset that resets on the crossbeam 991. The pressing assemblies 96 are 3 groups and comprise 2 groups of transverse pressing assemblies 960 and 1 group of vertical pressing assemblies 961, the transverse pressing assemblies 960 are connected to the rear angle adjusting support plate 900b, and the vertical pressing assemblies 961 are connected to the material baffle plate 98; the transverse pressing component 960 and the vertical pressing component 961 both comprise pressing components, the pressing components refer to fig. 9 and comprise a pressing fixing base 962, a pressing air cylinder 963 and an elastic pressing head 964, a longitudinal position adjusting groove 966 is formed in the pressing fixing base 962, a pressing adjusting screw handle 967 is formed in the longitudinal position adjusting groove 966, a clamping hole 968 for fixing the pressing air cylinder 963 is formed in the upper end of the pressing fixing base 962, a tightness adjusting groove 965 communicated with the clamping hole 968 is formed in the upper end of the pressing fixing base 962, adjusting screw holes 969 are formed in two sides of the tightness adjusting groove 965, and a tightness adjusting screw handle 96a is formed in the adjusting screw hole 969; the hold-down cylinder 963 is clamped in the clamp hole 968, the elastic hold-down head 964 is disposed on the hold-down cylinder 963, and the elastic hold-down head 964 is located in the working space above the cutting table 97 so as to be able to hold down incoming workpieces when it is moved.

Referring to fig. 4 to 8, the driving device 12 includes a slide driving motor 120 connected to the slide base 6, a slide driving reducer 121, and a slide driving gear 122; the sliding driving motor 120 is arranged outside the sliding seat 6, the sliding driving reducer 121 is in transmission connection with an output shaft of the sliding driving motor 120 and is located below the sliding driving motor 120, the sliding driving gear 122 is in transmission connection with an output end of the sliding driving reducer 121 and is in meshing transmission with the driving rack 14 in the driving frame 11, and the sliding driving motor 120 can adopt one of servo motors in absolute positioning or relative positioning, so that the positioning precision can be greatly improved.

Referring to fig. 1, the material supporting frame 7 includes a material supporting support seat 70, a material supporting flat plate 71, a material supporting vertical plate 72, and a material supporting roller 73; the left end of the material supporting support seat 70 is fixed on the right side of the sliding seat 6, namely the feeding side, and the right end of the material supporting support seat 70 is suspended and extends out towards the right side; the material supporting flat plate 71 is arranged on the material supporting seat 70 in a lying manner, the right end of the material supporting seat 70 is suspended and extends out towards the right side, and the material supporting flat plate 71 is flush with the cutting table 97 of the movable cutting unit 17; the material supporting vertical plate 72 is arranged on the material supporting support seat 70 close to the rear side of the material supporting flat plate 71 in a side-standing manner, and the right end of the material supporting vertical plate is suspended and extends out towards the right side; the material supporting flat plate 71 and the material supporting vertical plate 72 are both provided with a plurality of transverse hole grooves, and the material supporting roller rods 73 can be arranged in the transverse hole grooves in a rolling manner.

Referring to fig. 1, the movable rack 8 includes an i-shaped slide carriage 80, a lifting rod 81, a roller frame 82, and a rack roller rod 83, the i-shaped slide carriage 80 is slidably disposed on 2 linear horizontal rails 4, the lifting rod 81 is disposed on the i-shaped slide carriage 80, the roller frame 82 is disposed at an upper end of the lifting rod 81, and the rack roller rod 83 is disposed on the roller frame 82.

Referring to fig. 11 to 13, the saw blade cutting assembly 94 includes a saw blade driving motor 27, a guide mounting seat 28, a metal circular saw blade 21, a clamping assembly for fixing the metal circular saw blade 21, and an inclination angle adjusting assembly 20 for adjusting an operating inclination angle of the metal circular saw blade 21; the saw blade driving motor 27 is fixed on the guide mounting seat 28, the metal circular saw blade 21 is arranged at the front end of the output shaft 210 of the saw blade driving motor, and the inclination angle adjusting assembly 20 is arranged below the guide mounting seat 28; referring to fig. 12 to 13, the saw blade driving motor output shaft 210 is provided with a fixing ring steel ring 211, the fixing ring steel ring 211 and the saw blade driving motor output shaft 210 are fixed into a whole, and the end of the saw blade driving motor output shaft 210 is provided with a locking external thread; referring to fig. 12 to 13, the clamping assembly includes a circular clamping steel ring 212 and a locking nut 213, the locking nut 213 is detachably disposed on the external locking thread of the saw blade driving motor output shaft 210, the circular clamping steel ring 212 is movably sleeved on the saw blade driving motor output shaft 210, the metal circular saw blade 21 is disposed between the fixing ring steel ring 211 and the circular clamping steel ring 212, the locking nut 213 screws the circular clamping steel ring 212 through the external locking thread of the saw blade driving motor output shaft 210, and the metal circular saw blade 21 is pressed tightly on the fixing ring steel ring 211 by the clamping steel ring.

Referring to fig. 12, the reclining assembly 20 includes the rotating plate 22 rotatably hinged to the fixed plate 23 by the hinge 24, forming an acute angle therebetween; the fixed plate 23 is provided with an angle adjusting assembly for ejecting the rotating plate 22 at a certain angle, the guide mounting seat 28 is arranged on the fixed plate 23, and the fixed plate 23 is arranged on the transverse sliding cutting seat 92.

Referring to fig. 12, preferably, the recliner assembly 20 includes a carrier rod 25, a square top block 26, and a pair of positioning nuts 29; the ejector rod 25 is arranged on the fixed plate 23, the square ejector block 26 is movably sleeved on the ejector rod 25, an inclined surface is arranged on the upper side of the square ejector block 26, and the square ejector block 26 is in contact with the lower surface of the rotating plate 22 through the inclined surface and jacks up the rotating plate 22; the upper part of the ejector rod 25 is provided with an external thread, and the positioning nut 29 is arranged on the upper part of the ejector rod 25 through the external thread of the ejector rod 25 one above the other and clamps the square ejector block 26 in the middle. Referring to fig. 12 to 13, in order to make the metal circular saw blade 21 operate more smoothly, an impulse compensating flywheel 215 having an outer diameter smaller than that of the fixing ring steel ring 211 is coupled to a rear portion of the fixing ring steel ring 211. Referring to fig. 11, in order to mount the metal circular saw blade 21, the saw blade driving motor output shaft 210 is fixed by inserting a hexagon key tool into the hexagon socket auxiliary mounting hole 214, the locking nut 213 is conveniently operated to lock the circular clamping steel ring 212, and the front end of the saw blade driving motor output shaft 210 is provided with the hexagon socket auxiliary mounting hole 214 which is axially arranged. Through angle adjustment assembly 20 realizes right the metal circular saw blade 21 of saw blade cutting assembly 94's inclination is adjustable, the installation of metal circular saw blade 21 is more convenient, metal circular saw blade 21 work is more steady. The fixing ring steel ring 211 is preferably integrally formed with the output shaft 210 of the saw blade driving motor, so that the structure is stable.

Referring to fig. 7 to 8, the safety guard 9a has an arc structure, and a transparent observation window 9c for observing the cutting condition of the cutting table 97 is arranged on the front surface of the safety guard 9 a; the outer side of the saw blade is provided with a saw blade cover 9e, and the saw blade cover 9e is used for covering the saw position of the cut section workpiece 0 during cutting to prevent saw dust from splashing and collect the saw dust.

Referring to fig. 14 to 19, the material height measuring device 3 includes a measuring component 313, a measuring cylinder 32 and a housing 30, and the housing 30 is sleeved outside the measuring component 313; the measuring component 313 comprises an auxiliary material pressing supporting plate 310, a height measuring pressure plate component 314, an auxiliary backup plate 39 and a magnetic height measuring component; the auxiliary material pressing support plate 310 serves as a reference platform for measuring the cut profile workpiece 0, the upper surface of the auxiliary material pressing support plate is provided with a reference plane 3100 for measuring the cut profile workpiece 0, and the auxiliary material pressing support plate also serves as a mounting seat of the material measuring height device 3; the auxiliary material pressing support plate 310 is arranged in a lying manner, and the height measurement pressure plate component 314 and the magnetic height measurement component are both arranged on the auxiliary material pressing support plate 310; the measuring cylinder 32 is arranged below the auxiliary material pressing support plate 310, and a push rod of the measuring cylinder 32 extends upwards from the lower part of the auxiliary material pressing support plate 310; referring to fig. 17, the height-measuring pressure plate assembly 314 includes a guide rail 33, a slider 31, a slider mounting seat 38 and a movable pressure plate 37, wherein the slider 31 is fixed on one side of the slider mounting seat 38, the slider 31 is slidably clamped on the guide rail 33, and the guide rail 33 is vertically fixed on the upper side of the auxiliary material pressing support plate 310; the tail end of the movable pressing plate 37 is fixed on the outer side of the slider mounting seat 38, and the head end of the movable pressing plate 37 extends outwards and is parallel to the auxiliary material pressing supporting plate 310; the push rod of the measuring cylinder 32 is connected to the bottom of the slider mounting seat 38, but the push rod may be directly connected to the slider 31 in another embodiment. For this purpose, the movable pressing plate 37 is located above the auxiliary material supporting plate 310 and connected to the push rod of the measuring cylinder 32, and the movable pressing plate 37 is used for matching with the auxiliary material supporting plate 310 and clamping the outer surface of the measured profile workpiece 0 under the driving of the measuring cylinder 32.

Referring to fig. 17 to 19, the magnetic height measuring assembly further includes a digital display meter 311, a magnetic sensor 35, a magnetic scale base 34, a flexible magnetic scale 316, a non-magnetic steel strip 317 and a protective steel strip 318; the magnetic scale seat 34 is vertically fixed on the upper side of the auxiliary material pressing support plate 310 in parallel with the guide rail 33, and a longitudinal scale groove 320 is formed in the rear side of the magnetic scale seat 34; the soft magnetic scale 316 is flatly stacked between the non-magnetic-conductive steel belt 317 and the protective steel belt 318, the soft magnetic scale, the non-magnetic-conductive steel belt 317 and the protective steel belt 318 form a magnetic scale component 319, the outer side of the protective steel belt 318 is a magnetic induction surface, and the magnetic scale component 319 is arranged in the longitudinal scale groove 320 of the magnetic scale base 34; the magnetic sensor 35 is fixed on the slider mounting seat 38 close to the outer side of the tail end of the movable pressing plate 37, the magnetic sensing head of the magnetic sensor 35 extends into the longitudinal ruler groove 320 of the magnetic ruler seat 34, and the distance between the magnetic sensing head of the magnetic sensor 35 and the protective steel belt 318 is 0.8 mm-1.0 mm; the digital display meter 311 is fixed on the housing 30 through a square fixing plate 312. The magnetic sensor 35 is pushed by the push rod of the measuring cylinder 32 to synchronously move up and down with the movable pressing plate; the magnetic scale assembly 319 is used for cooperating with the magnetic sensor 35 to sense the height of the measured profile workpiece 0 clamped by the movable platen 37 and the auxiliary press supporting plate 310 in pair and provide the sensed signal to the automatic controller.

The digital display meter 311 is internally provided with a singlechip control circuit, the magnetic sensor 35 is in electrical signal connection with the singlechip control circuit in the digital display meter 311, the singlechip control circuit is in signal connection with the automatic controller, and the singlechip control circuit is used for responding to a profile height signal transmitted by the magnetic sensor 35, displaying the profile height signal through a display of the digital display meter 311 and providing the profile height signal for the automatic controller. The automatic controller is used for controlling the fixed cutting unit 16 and the movable cutting unit 17 to cut the end part of the cut section 0 through the metal circular saw blade 21; the automatic controller is used for determining the distance between the fixed cutting unit 16 and the movable cutting unit 17 according to the height data of the cut profile 0 provided by the material height measuring device 3 and the acquired data of the required profile length, the cutting angle and the like; secondly, the automatic controller can also control and drive the driving device 12, and the driving device 12 is used for executing the instruction of the automatic controller to drive the movable cutting unit 17 to move to the specified position on the horizontal type frame 1 so as to determine the distance between the fixed cutting unit 16 and the movable cutting unit 17.

Referring to fig. 17, the auxiliary backup plate 39 is fixed on the auxiliary material pressing support plate 310, and abuts against the front sides of the guide rail 33 and the magnetic scale base 34, the guide rail 33 and the magnetic scale base 34 are fixed on the back side of the electric auxiliary backup plate 39 through fixing members, and the auxiliary backup plate 39 is provided with a longitudinal groove 324 which is opened above and is used for the up-and-down movement of the movable pressure plate 37; referring to fig. 14 and 16, the housing 30 is fixed to the auxiliary pressing support plate 310, a meter head mounting opening 321 through which a display portion (display) of the digital display meter 311 is exposed is formed in an upper portion of the housing 30, a longitudinal long groove 322 through which the movable pressure plate 37 is exposed and moves up and down is formed in a lower portion of the meter head mounting opening 321, and an opening backup plate square hole 326 for accommodating the auxiliary backup plate 39 is formed in a lower portion of the longitudinal long groove 322. The housing 30 is fitted over the auxiliary back plate 39 through the open back plate square hole 326.

Referring to fig. 16, preferably, the housing 30 is provided at both bottom wings thereof with housing fixing portions 325 protruding downward; the shell 30 is clamped on the side edge of the auxiliary material pressing support plate 310 and fixed by screws; the front end of the digital display meter 311 is provided with a square fixing plate larger than the meter body, four corners of the square fixing plate are provided with fixing holes, and the digital display meter 311 is fixed at a meter head mounting port 321 of the shell 30 through the square fixing plate 312.

Referring to fig. 17 and 18, preferably, the movable platen 37 is a vertically-arranged flat plate structure, the tail end of the movable platen 37 is a platen fixing portion 327, the head end of the movable platen 37 is a platen pressing portion 328 for pressing the cut profile workpiece 0 when the height is measured, the platen pressing portion 328 extends downwards at a section where the platen pressing portion 328 and the platen fixing portion 327 are joined to form a step-shaped structure, the bottom edge of the platen pressing portion 328 is a smooth flat-bottom structure, and the top edge of the platen pressing portion 328 is an arc-shaped transition structure with a high front edge and a low rear edge. Referring to fig. 17, a magnetic reader base 36 for mounting the magnetic sensor 35 is preferably provided on the outer side of the pressing plate fixing portion 327 of the movable pressing plate 37.

When in processing, the automatic controller, the starting switch on the control box 10, the control button 19 and the like are started, the material supporting frame 7 and the movable material frame 8 drive the cut section material workpiece 0 to be loaded, and the cut profile workpiece 0 is passed through between the auxiliary material holding plate 310 and the movable platen 37, the measuring cylinder 32 is connected with the control switch or the automatic controller, when the height of the cut section bar workpiece 0 needs to be measured, the automatic controller starts the measuring cylinder 32, drives the slide block mounting seat 38 to descend, the slide block mounting seat 38 drives the movable pressing plate 37 to press down, so as to press the cut profile workpiece 0 tightly, the magnetic sensor 35 can transmit the height data of the cut profile workpiece 0 to the single-chip microcomputer control circuit in the digital display 311 and further to the automatic controller, and convert the height data into the top edge length of the cut profile workpiece 0 required by the height and display the top edge length. Then, adjusting processing parameters according to the measured height data of the section bar, the length of the section bar planned to be cut and the cutting angle of the end part; subsequently, the automatic controller controls the driving device 12 to operate, drives the movable cutting unit 17 to a specified processing position, moves the cut profile workpiece 0 to the cutting table 97, and controls the fixed cutting unit 16 and the metal circular saw blade 21 on the movable cutting unit 17 to simultaneously perform both-end cutting on the cut profile workpiece 0 placed on the cutting table 97. The metal circular saw blade 21 extends at a desired cutting angle and penetrates into the saw kerf 9b, and after the sawing operation, it is automatically retracted, and the saw dust produced by the cutting operation and the cut profile tailings etc. slide out of the saw dust recovery chute 95.

The invention is not limited in any way by the above description and the specific examples, which are not limited to the specific embodiments disclosed and described above, but rather, several modifications and variations of the invention are possible within the scope of the invention as defined in the claims.

Claims

1. The saw blade cutting unit with the sawing and positioning function is characterized by comprising a saw blade cutting base, an angle adjusting seat and a saw blade cutting assembly; the saw blade cutting base is a rigid frame and comprises angle adjusting support plates, namely a front angle adjusting support plate and a rear angle adjusting support plate, which are respectively positioned at the front side and the rear side, the angle adjusting base comprises a main base body, and a front connecting arm and a rear connecting arm which are positioned at the two ends of the main base body, the saw blade cutting assembly comprises a saw blade driving motor and a metal circular saw blade, the metal circular saw blade is arranged on an output shaft of the saw blade driving motor, and the saw blade cutting assembly is arranged on the main base body in a manner of moving back and forth along the front-rear transverse direction;

2. The saw blade cutting unit as claimed in claim 1, wherein an angle adjustment cylinder is disposed between the saw blade cutting base and the angle adjustment seat, and the angle adjustment cylinder is used for pushing the angle adjustment seat to swing so as to adjust or determine the inclination angle of the saw blade.

3. The blade cutting unit of claim 1, further comprising a laterally sliding cutting block on which the blade cutting assembly is disposed, a laterally advancing cylinder, the laterally sliding cutting block slidably disposed on the angle adjustment block in a front-to-back lateral direction; the transverse propelling cylinder is arranged between the transverse sliding cutting seat and the angle adjusting seat and used for propelling the saw blade driving motor and the saw blade to move along the front-back transverse direction.

4. The saw blade cutting unit of claim 1, further comprising a material blocking backup plate vertically arranged at the front side of the cutting table and connected to the rear angle adjusting plate or the cutting table, wherein the material blocking backup plate and the cutting table form a right-angle structure, and the material blocking backup plate and the cutting table are combined to support and position the cut profile.

5. The saw blade cutting unit as claimed in claim 1, wherein the front angle adjustment strip or the rear angle adjustment strip is provided with an arc-shaped angle adjustment slot, the lower portion of the angle adjustment seat is connected with an angle adjustment hinge shaft, one end of the angle adjustment hinge shaft extends outwards from the arc-shaped angle adjustment slot, an outwards extending portion of the angle adjustment hinge shaft is provided with an external thread, the angle adjustment hinge shaft is provided with a step, a locking gasket is sleeved on the outwards extending portion over the angle adjustment strip and is screwed with an angle adjustment nut handle, and the step is screwed on the angle adjustment strip in cooperation with the locking gasket and the angle adjustment nut handle, so as to fix the angle adjustment seat and determine the inclination angle thereof from the angle of mechanical positioning.

6. The saw blade cutting unit as claimed in claim 5, comprising a blocking arm detachably connected to the saw blade cutting base and located on a swing track of the angle adjustment seat; the blocking arm is used for limiting the maximum swing amplitude of the angle adjusting seat which can be realized under the pushing of the angle adjusting cylinder before the angle adjusting seat is fixed by the angle adjusting nut handle from the mechanical limiting angle.

7. The saw blade cutting unit as claimed in claim 1, further comprising a swaging assembly including a lateral and vertical pinching assembly for pinching the cut profiles from two different angles, lateral and vertical, perpendicular to each other; the transverse compressing assembly and the vertical compressing assembly comprise compressing assemblies, each compressing assembly comprises a compressing cylinder and an elastic compressing head arranged on a cylinder rod of the compressing cylinder, and the elastic compressing heads are located in an operation space above the cutting table.

8. The saw blade cutting unit according to claim 7, wherein the pressing assembly further comprises a pressing fixing base, a longitudinal position adjusting groove is formed in the pressing fixing base, a pressing adjusting screw handle is arranged on the longitudinal position adjusting groove, a clamping hole for fixing the pressing cylinder is formed in the upper end of the pressing fixing base, a tightness adjusting groove communicated with the clamping hole is formed in the upper end of the pressing fixing base, adjusting threaded holes are formed in two sides of the tightness adjusting groove, a tightness adjusting screw handle is arranged in the adjusting threaded hole, the pressing cylinder is clamped in the clamping hole, and the elastic pressing head is arranged on the pressing cylinder.

9. The saw blade cutting unit as claimed in claim 1, wherein a safety guard capable of turning is provided above the cutting table, the safety guard is used for covering the position of the saw cut of the cut section bar to prevent sawdust from splashing when cutting.

10. The saw blade cutting unit as claimed in claim 1, further comprising a shielding plate, wherein a saw blade avoiding slit for allowing the saw blade to pass through is formed in the shielding plate, the shielding plate is connected to the angle adjustment seat and can swing along with the angle adjustment seat, the shielding plate is located behind the metal circular saw blade, and the saw blade avoiding slit is located on a rotation plane of the metal circular saw blade so as to be capable of extending into or exiting from the saw blade avoiding slit when the metal circular saw blade moves in a front-back transverse direction.

11. Saw blade cutting unit according to claim 10, wherein the shutter is located at the front side of the cutting table.

12. The saw blade cutting unit as claimed in claim 10, further comprising a safety cover capable of housing at least the metal circular saw blade, the safety cover being detachably mounted upright on the angle adjustment base, a rear end vertical wall of the safety cover being the shielding plate.

13. The double-head saw cutting machine comprises a horizontal frame, a fixed cutting unit and a movable cutting unit, wherein the horizontal frame extends along the left and right longitudinal directions, the fixed cutting unit is fixedly arranged on the horizontal frame, the movable cutting unit is movably arranged on the horizontal frame along the left and right longitudinal directions, and the fixed cutting unit and the movable cutting unit are arranged on the left and right sides and respectively comprise the saw blade cutting unit as claimed in any one of claims 1 to 12.

14. The double-ended saw cutting machine according to claim 13, further comprising a sawdust recovery chute detachably provided at a side of the cutting table, a top entrance of the sawdust recovery chute being close to the kerf position, the sawdust recovery chute being for collecting sawdust and cut profile tailings.

15. The double-ended saw cutting machine according to claim 14, further comprising a driving device, the driving device comprising a slide driving motor provided on the movable cutting unit, a slide driving reducer connected to an output shaft of the slide driving motor, a slide driving gear drivingly connected to the slide driving reducer; the horizontal rack is provided with a transmission rack, the sliding driving gear is in meshing transmission with the transmission rack, and the sliding driving motor is a servo motor and is used for driving the movable cutting unit to move to a specified position on the horizontal rack.

16. The double-end saw cutting machine according to claim 15, further comprising an automatic controller and a data sampling device, wherein the data sampling device is in signal connection with the automatic controller, and is used for picking up profile length, cutting angle and cutting height data in the cutting direction of a cut profile and transmitting the picked data to the automatic controller; the sliding driving motor is used for executing the command of the automatic controller to drive the movable cutting unit to move on the horizontal rack; the automatic controller is used for obtaining the distance data between the fixed cutting unit and the movable cutting unit according to the data provided by the data sampling device and driving the movable cutting unit to move to a specified position on the horizontal rack by controlling a sliding driving motor of the driving device so as to determine the specific space distance between the fixed cutting unit and the movable cutting unit.

17. The double-end saw cutting machine according to claim 16, wherein the data sampling device comprises a material height measuring device in signal connection with the automatic controller, and the material height measuring device is used for detecting the cutting height of the cut profile workpiece in the cutting direction and transmitting the detection data to the automatic controller; the data sampling device further comprises a control box, wherein a control button which is in signal connection with the automatic controller is arranged on the control box, and the control button is used for transmitting the data of the section length and the cutting angle of the cut section workpiece, which are input by an operator, to the automatic controller through man-machine conversation.