Multiple cooling formula cutting mechanism of light steel villa fossil fragments machine
Technical Field
The embodiment of the invention relates to the technical field of light steel villa keel machines, in particular to a multiple cooling type cutting mechanism of a light steel villa keel machine.
Background
The keel machine uses strip steel as raw material, and produces complex section profile through continuous cold rolling forming, and the product is as follows: the light steel keel, the baking finish keel, the clamping keel, various building profiles, steel structures, steel lining door frame profiles, high-speed guard rails and the like, and cold bending and baking finish unit equipment with different specifications are controlled by a PLC. The keel machine has the processing technology of discharging, straightening, roll forming, cutting and receiving. The keel machine equipment comprises a discharging machine, a guide rack, a forming host, a correcting device, a fixed-length cutting part, a material receiving platform, an electric appliance control part and the like.
Cutting mechanism is one of the important structure of fossil fragments machine, can produce a large amount of heats because of the friction when using the cutter to cut light gauge steel, if these heats dispel in time, then can all cause the damage to fossil fragments and cutter, not only influence product quality easily to often change the cutter easily, increase cost.
Disclosure of Invention
Therefore, the embodiment of the invention provides a multiple cooling type cutting mechanism of a light steel villa keel machine, which can timely dissipate a large amount of heat generated by friction between an annular blade and a raw material when the annular blade is cut by multiple cooling, reduce the damage to the raw material and the annular blade, effectively improve the product quality, effectively prolong the replacement period of the annular blade and save the cost, and solve the problems that in the prior art, a large amount of heat is generated by friction when a cutter cuts a light steel keel, if the heat is not dissipated in time, the keel and the cutter are damaged, the product quality is easily influenced, the cutter is easily replaced frequently, and the cost is increased.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: a multiple cooling type cutting mechanism of a light steel villa keel machine comprises a cutting mechanism arranged on the light steel villa keel machine, wherein the cutting mechanism comprises a cutting component, one side of the cutting component is provided with a limiting component, the outer end of the limiting component is provided with a cooling component, and the rear side of the cutting component is provided with a driving component;
the cutting assembly comprises a movable frame, a movable ring and a hollow rotating rod are arranged in the movable frame, the movable ring is arranged at the outer end of the hollow rotating rod, two ends of the movable ring are movably connected with the outer end of the hollow rotating rod through a bearing, one end of the hollow rotating rod extends out of one side of the movable frame, the outer end of the hollow rotating rod is fixedly provided with a hollow ring through bolts, the hollow ring is arranged at one side of the movable ring, the outer end of the hollow ring is fixedly provided with an annular blade, both sides of the annular blade are respectively embedded and fixed with a polishing piece, one side of the hollow ring is provided with a plurality of first through holes around the hollow rotating rod, the other side of the hollow ring is fixedly provided with a sealing plate through bolts, the inner wall of the hollow ring is fixedly provided with an arc-shaped filter screen, the plurality of first through holes are uniformly distributed around the arc-shaped filter screen, the arc-shaped filter, the second through hole is arranged on the inner side of the arc-shaped filter screen, the outer end of the hollow rotating rod is fixedly provided with two fan blades, the two fan blades are respectively arranged on two sides of the hollow circular ring, the fan blades are arranged on one side of the movable ring, the outer end of the hollow rotating rod is fixedly provided with a gear, the rear side of the gear is meshed with a rack, the rack is fixedly arranged on the rear wall in the movable frame through a connecting rod, the gear and the rack are both arranged between the hollow circular ring and the fan blades, a cooling pipe is arranged in the hollow rotating rod, the two ends of the cooling pipe both extend out of the other end of the hollow rotating rod, one end of the hollow rotating rod is provided with an air pipe, the air pipe is movably connected with the hollow rotating rod through a sealing bearing, the top end of the movable ring is fixedly provided with an electric push rod, the electric push rod penetrates, the first infrared emitter is arranged on the rear side of the annular blade;
the limiting assembly comprises two fixing plates, the fixing plates are arranged on one side of the movable frame, movable limiting plates are arranged on the inner sides of the two fixing plates, two first springs are fixedly arranged between the outer ends of the movable limiting plates and the inner ends of the fixing plates, a top limiting assembly is fixedly arranged on one side of the top ends of the two fixing plates, and one side of each of the two movable limiting plates is in a splayed shape;
the cooling subassembly includes a plurality of well cavitys, and is a plurality of well cavity frame rear side is equipped with the second bellows, and is a plurality of well cavity frame is all through first bellows and second bellows intercommunication, and is a plurality of well cavity frame one side is all fixed and is equipped with two sliders, well cavity is erect in two fixed plate outer ends, the slider is established in the fixed plate outer end, the fixed first infrared receiver that is equipped with in slider top, first infrared receiver is in the position of one side under first infrared transmitter, a plurality of exhaust vents have been seted up to well cavity frame inboard, the exhaust vent is established at the fixed plate top.
Further, drive assembly includes the motor, the fixed lead screw that is equipped with of output of motor, the fixed nut seat that is equipped with in movable frame rear end, the nut seat is connected in the lead screw outer end, the second bellows is established in the lead screw front side, the motor is fixed to be established on light steel villa fossil fragments machine.
Furthermore, two sides of the bottom end of the movable frame are connected with the light steel villa keel machine in a sliding way through slide rails, a second infrared emitter and a second infrared receiver which are opposite are respectively fixed on the front side wall and the rear side wall in the movable frame, the first infrared emitter, the second infrared receiver and the first infrared receiver are all connected with the input end of the controller on the light steel villa keel machine through an A/D converter, the electric push rod and the motor are both connected with the output end of the controller on the light steel villa keel machine through a D/A converter, the vertical central line of the annular blade is mutually vertical to and intersected with a connecting line between the second infrared transmitter and the second infrared receiver, the vertical central line of the first infrared transmitter is perpendicular to and intersected with a connecting line between the second infrared transmitter and the second infrared receiver.
Further, two walls are all fixed around the activity frame is inside and are equipped with the slide, the slide is established in flabellum one side, the slide is established at second infrared emitter and second infrared receiver top, both ends are all fixed around the activity ring and are equipped with the slide, the slide is established at the slide inboard and extend into inside the slide, slide and slide sliding connection.
Furthermore, the other end of the hollow rotating rod is connected with a rotating block through a bearing, and two ends of the cooling pipe penetrate through the rotating block and are fixedly connected with the rotating block.
Further, the inner of the movable limiting plate is fixedly bonded with a first rubber pad, two guide rods are arranged on the outer side of the fixing plate, one end of each guide rod penetrates through the fixing plate to be fixedly connected with the outer end of the movable limiting plate, the guide rods are in contact with the fixing plate, and the first spring sleeves are arranged on the outer sides of the guide rods.
Furthermore, a plurality of rubber check blocks are arranged on the inner wall of the hollow circular ring, one end of each rubber check block is fixedly bonded with the inner wall of the hollow circular ring, and each rubber check block is arranged on one side of the corresponding first through hole.
Further, the top limiting assembly comprises a top plate, the two ends of the top plate are respectively fixedly arranged on one side of the top ends of the two fixed plates, a pressing plate is arranged inside the top plate, the bottom end of the top plate extends out of the bottom end of the top plate, a second spring is fixedly arranged on the top end of the pressing plate, the second spring is fixedly connected with the top end inside the top plate and one end of the top plate, a second rubber pad is bonded to the outer end of the pressing plate, the second rubber pad is arranged inside the top plate and extends out of the bottom end of the top plate, the second rubber pad is arranged at the top of the movable.
Furthermore, the outer end of the sliding block is provided with a fastening bolt in a penetrating mode, one end of the fastening bolt is in contact with the outer end of the fixing plate, and the fastening bolt is in threaded connection with the sliding block.
Further, the second corrugated pipe is communicated with an external fan, the air pipe is communicated with an external exhaust fan, and the cooling pipe is communicated with an external cooling water tank.
The embodiment of the invention has the following advantages:
1. according to the invention, the raw material enters between the splayed sides of the movable limiting plates and is simultaneously contacted with the arc-shaped surface at the bottom end of the pressing plate, then the light steel villa keel machine continuously conveys the raw material, so that the raw material pushes the movable limiting plates in the front and back directions, the movable limiting plates compress the first spring to enable the first spring to generate elastic force, and at the moment, the movable limiting plates positioned at the front and back ends of the raw material limit the front and back positions of the raw material;
2. the invention drives the movable ring, the hollow rotating rod, the hollow circular ring, the annular blade, the fan blade and the gear to move downwards through the electric push rod, and simultaneously, the gear rotates along the rack when moving downwards, so as to drive the hollow rotating rod, the hollow circular ring and the annular blade to rotate, so that the annular blade cuts raw materials, the fan blade rotates to generate wind power to cool a cutting position when cutting, simultaneously, an external cooling water tank inputs cooling water into a cooling pipe to reduce the temperature of the hollow rotating rod for secondary cooling, simultaneously, an external exhaust fan generates suction inside the hollow rotating rod through an air pipe, thereby generating suction inside the hollow circular ring through a second through hole, performing tertiary cooling on the cutting position, simultaneously, air blown out by an external fan enters a second corrugated pipe, then enters the hollow frame through a first corrugated pipe, and then is blown out around the cutting position through an air outlet hole, compared with the prior art, the cutting position is cooled for four times, and multiple cooling can timely dissipate a large amount of heat generated by friction when the annular blade and the raw material are cut, so that the damage to the raw material and the annular blade is reduced, the product quality is effectively improved, the replacement period of the annular blade is effectively prolonged, and the cost is saved;
3. according to the invention, after the annular blade cuts the raw material, the polishing piece on the annular blade enters the cut of the raw material next, and the polishing piece rotates along with the annular blade, so that the cut is polished;
4. according to the invention, when the first infrared emitters on the movable frame move to the state that the infrared rays emitted by the first infrared emitters are sequentially received by the infrared receivers, the annular blade moves to the position right above the position to be cut at the next position of the raw material, and then cutting is carried out.
Drawings
FIG. 1 is a schematic view of a mounting structure provided by the present invention;
FIG. 2 is a schematic sectional view of a cutting mechanism according to the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2 according to the present invention;
FIG. 4 is a schematic side view of a cutting assembly according to the present invention;
FIG. 5 is a schematic side view of a movable frame according to the present invention;
FIG. 6 is a front view of a ring blade according to the present invention;
FIG. 7 is a schematic view of the right side of the ring blade of the present invention;
FIG. 8 is a left side view of the ring blade of the present invention;
FIG. 9 is a schematic top view of the cutting mechanism provided in the present invention;
FIG. 10 is a schematic top view of the spacing assembly and the cooling assembly of the present invention;
FIG. 11 is an enlarged view of portion B of FIG. 2 according to the present invention;
FIG. 12 is a schematic side view of a top stop assembly according to the present invention;
fig. 13 is a schematic perspective view of the movable limiting plate and the first rubber pad provided by the invention;
in the figure: 1 cutting mechanism, 2 cutting-off component, 3 limiting component, 4 cooling component, 5 driving component, 6 movable frame, 7 movable ring, 8 hollow rotating rod, 9 hollow ring, 10 annular blade, 11 polishing piece, 12 first through hole, 13 sealing plate, 14 annular filter screen, 15 second through hole, 16 fan blade, 17 gear, 18 rack, 19 cooling pipe, 20 air pipe, 21 electric push rod, 22 motor, 23 screw rod, 24 nut seat, 25 first infrared emitter, 26 second infrared emitter, 27 second infrared receiver, 28 fixing plate, 29 movable limiting plate, 30 first spring, 31 top limiting component, 32 hollow frame, 33 first corrugated pipe, 34 second corrugated pipe, 35 sliding block, 36 first infrared receiver, 37 air outlet, 38 slideway, 39 sliding plate, 40 first rubber pad, 41 guide rod, 42 rubber block, 43 top plate, 44 pressing plate, 45 second spring, 43, The second rubber pad 46 and 47 are fastened with bolts.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the attached drawings 1-13 of the specification, the multiple cooling type cutting mechanism of the light steel villa keel machine comprises a cutting mechanism 1 installed on the light steel villa keel machine, wherein the cutting mechanism 1 comprises a cutting component 2, a limiting component 3 is arranged on one side of the cutting component 2, a cooling component 4 is arranged at the outer end of the limiting component 3, and a driving component 5 is arranged on the rear side of the cutting component 2;
the cutting-off assembly 2 comprises a movable frame 6, a movable ring 7 and a hollow rotating rod 8 are arranged in the movable frame 6, the movable ring 7 is arranged at the outer end of the hollow rotating rod 8, two ends of the movable ring 7 are movably connected with the outer end of the hollow rotating rod 8 through a bearing, one end of the hollow rotating rod 8 extends out of one side of the movable frame 6, a hollow circular ring 9 is fixedly arranged at the outer end of the hollow rotating rod 8 through bolts, the hollow circular ring 9 is arranged at one side of the movable ring 7, an annular blade 10 is fixedly arranged at the outer end of the hollow circular ring 9, polishing pieces 11 are embedded and fixed at two sides of the annular blade 10, a plurality of first through holes 12 are formed in one side of the hollow circular ring 9 around the hollow rotating rod 8, a sealing plate 13 is fixedly arranged at the other side of the hollow circular ring 9 through bolts, the sealing plate 13 is convenient to be detached from the hollow circular ring 9 so as to conveniently clean debris in the hollow circular, a plurality of the first through holes 12 are uniformly distributed around the arc-shaped filter screen 14, the arc-shaped filter screen 14 is in contact with the outer end of the hollow rotating rod 8, the outer end of the hollow rotating rod 8 is provided with a plurality of second through holes 15, the second through holes 15 are arranged on the inner side of the arc-shaped filter screen 14, the outer end of the hollow rotating rod 8 is fixedly provided with two fan blades 16, the two fan blades 16 are respectively arranged on two sides of the hollow ring 9, the fan blades 16 are arranged on one side of the movable ring 7, the outer end of the hollow rotating rod 8 is fixedly provided with a gear 17, the rear side of the gear 17 is engaged with a rack 18, the rack 18 is fixedly arranged on the rear wall inside the movable frame 6 through a connecting rod, the gear 17 and the rack 18 are both arranged between the hollow ring 9 and the fan blades 16, the inside of the hollow rotating rod 8 is provided with a cooling pipe 19, the other end of the hollow, the air pipe 20 is movably connected with the hollow rotating rod 8 through a sealing bearing, an electric push rod 21 is fixedly arranged at the top end of the movable ring 7, the electric push rod 21 penetrates through the top end of the movable frame 6 and is fixedly connected with the movable frame 6, a first infrared emitter 25 is fixedly arranged at the top end inside the movable frame 6, and the first infrared emitter 25 is arranged on the rear side of the annular blade 10;
the limiting assembly 3 comprises two fixing plates 28, the fixing plates 28 are arranged on one side of the movable frame 6, movable limiting plates 29 are arranged on the inner sides of the two fixing plates 28, two first springs 30 are fixedly arranged between the outer ends of the movable limiting plates 29 and the inner ends of the fixing plates 28, a top limiting assembly 31 is fixedly arranged on one side of the top ends of the two fixing plates 28, and one side of each of the two movable limiting plates 29 is in a splayed shape;
cooling module 4 is including a plurality of well hollows frame 32, and is a plurality of well hollows frame 32 rear side is equipped with second bellows 34, and is a plurality of well hollows frame 32 all communicates through first bellows 33 and second bellows 34, and is a plurality of well hollows frame 32 one side is all fixed and is equipped with two sliders 35, well hollows frame 32 is established in two fixed plate 28 outer ends, slider 35 is established in fixed plate 28 outer end, the fixed first infrared receiver 36 that is equipped with in slider 35 top, first infrared receiver 36 is located the position of one side under first infrared emitter 25, a plurality of exhaust vents 37 have been seted up to well hollows frame 32 inboard, exhaust vents 37 are established at fixed plate 28 top.
Further, drive assembly 5 includes motor 22, the fixed lead screw 23 that is equipped with of output of motor 22, the fixed nut seat 24 that is equipped with in 6 rear ends of movable frame, nut seat 24 is connected in the outer end of lead screw 23, second bellows 34 is established at lead screw 23 front side, motor 22 is fixed to be established on light steel villa fossil fragments machine, drives lead screw 23 through motor 22 and rotates for nut seat 24 moves about along lead screw 23, thereby drives movable frame 6 and moves about along the slide rail.
Further, two sides of the bottom end of the movable frame 6 are slidably connected with the light steel villa keel machine through slide rails, a second infrared emitter 26 and a second infrared receiver 27 which are opposite to each other are respectively fixedly arranged on the front side wall and the rear side wall inside the movable frame 6, the first infrared emitter 25, the second infrared emitter 26, the second infrared receiver 27 and the first infrared receiver 36 are all connected with the input end of a controller on the light steel villa keel machine through A/D converters, the electric push rod 21 and the motor 22 are all connected with the output end of the controller on the light steel villa keel machine through D/A converters, the vertical central line of the annular blade 10 is mutually perpendicular and intersected with the connecting line between the second infrared emitter 26 and the second infrared receiver 27, the vertical central line of the first infrared emitter 25 is mutually perpendicular and intersected with the connecting line between the second infrared emitter 26 and the second infrared receiver 27, when the first infrared emitter 25 moves along with the movable frame 6 to emit infrared rays which are received by the first infrared receiver 36, the annular blade 10 moves to a position right above the position where the raw material needs to be cut, and the controller receives a signal to start the electric push rod 21 to cut.
Further, two walls are all fixed and are equipped with slide 38 around the movable frame 6 is inside, slide 38 is established in flabellum 16 one side, slide 38 is established at second infrared emitter 26 and second infrared receiver 27 top, both ends are all fixed and are equipped with slide 39 around the activity ring 7, slide 39 is established at slide 38 inboard and is extended into inside the slide 38, slide 39 and slide 38 sliding connection, the up-and-down motion of activity ring 7 drives slide 39 along slide 38 up-and-down motion, realizes the up-and-down motion direction of activity ring 7.
Further, the other end of the hollow rotating rod 8 is connected with a rotating block through a bearing, and two ends of the cooling pipe 19 penetrate through the rotating block and are fixedly connected with the rotating block, so that the cooling pipe 19 is prevented from rotating along with the hollow rotating rod 8.
Further, the inner bonding of activity limiting plate 29 is fixed with first rubber pad 40, reduces the wearing and tearing that the raw materials received, the fixed plate 28 outside is equipped with two guide arms 41, fixed plate 28 and the fixed connection of activity limiting plate 29 outer end are passed to guide arm 41 one end, guide arm 41 contacts with fixed plate 28, first spring 30 cover is established in the guide arm 41 outside, realizes the seesaw direction to activity limiting plate 29.
Further, be equipped with a plurality of rubber dog 42 on the hollow ring 9 inner wall, rubber dog 42 one end and hollow ring 9 inner wall bonding are fixed, rubber dog 42 is established in first through-hole 12 one side, can seal first through-hole 12, prevents during the inoperative that the bits of broken glass from overflowing in the hollow ring 9.
Further, the top limit component 31 includes the roof 43, roof 43 both ends are fixed respectively and are established in two fixed plate 28 top one sides, the inside clamp plate 44 that is equipped with of roof 43, roof 43 bottom is extended to clamp plate 44 bottom, the fixed second spring 45 that is equipped with in clamp plate 44 top, second spring 45 establishes at roof 43 inside and one end and the inside top fixed connection of roof 43, clamp plate 44 outer end bonds and has second rubber pad 46, second rubber pad 46 establishes in roof 43 inside and extend roof 43 bottom, second rubber pad 46 establishes at activity limiting plate 29 top, the arcwall face is processed into to clamp plate 44 bottom, realizes that the position is spacing about the raw materials, prevents raw materials one end perk when the cutting.
Furthermore, the outer end of the sliding block 35 is provided with a fastening bolt 47 in a penetrating manner, one end of the fastening bolt 47 is in contact with the outer end of the fixing plate 28, and the fastening bolt 47 is in threaded connection with the sliding block 35 to fix the sliding block 35.
Further, second bellows 34 is linked together with external fan, and the wind-force transmission of external fan is used for the cooling to second bellows 34, tuber pipe 20 is linked together with external air exhauster, and the suction of external air exhauster is used for absorbing the piece through the transmission of tuber pipe 20, cooling tube 19 is linked together with external cooling water tank, and the cooling water is used for cooling to the cooling in transmitting to cooling tube 19.
The implementation scenario is specifically as follows: the light steel villa keel machine carries the raw materials to the cutting mechanism 1 after sequentially punching dies, roll forming and code spraying identification, at first the raw materials enter between one side of the splayed movable limiting plate 29, simultaneously contact with the arc surface of the bottom end of the pressing plate 44, then the light steel villa keel machine continues to carry the raw materials, make the raw materials push the movable limiting plate 29 to the front and back two directions, the movable limiting plate 29 compresses the first spring 30, make the first spring 30 generate elasticity, at this time, the movable limiting plate 29 at the front and back two ends of the raw materials limits the front and back positions of the raw materials, prevent the front and back positions of the raw materials from offsetting, simultaneously the raw materials upwards support the pressing plate 44, make the pressing plate 44 compress the second spring 45, make the second spring 45 generate elasticity, at this time, the pressing plate 44 at the top end of the raw materials limits the upper and lower positions of the raw materials, prevent the tilting of one end of the raw materials when the raw materials are cut, then one Meanwhile, at this time, the infrared ray emitted by the second infrared emitter 26 is shielded by the raw material, so that the second infrared receiver 27 cannot receive the infrared ray, and thus the signal is transmitted to the controller, the controller controls the light steel villa keel machine to stop conveying the material, then the motor 22 of the driving assembly 5 is started, the motor 22 drives the screw rod 23 to rotate, so that the nut seat 24 moves leftwards along the screw rod 23, and thus the movable frame 6 is driven to move leftwards along the slide rail, when the first infrared emitter 25 on the movable frame 6 moves until the infrared ray emitted by the first infrared emitter 25 is received by the first infrared receiver 36, the controller receives the signal, so that the motor 22 is stopped, at this time, the annular blade 10 moves right above the position where the raw material needs to be cut, at this time, the electric push rod 21 is started, and the electric push rod 21 drives the movable ring 7 to move downwards, so as, The annular blade 10, the fan blade 16 and the gear 17 move downwards, and simultaneously rotate along the rack 18 when the gear 17 moves downwards, because the hollow rotating rod 8 is connected with the movable ring 7 through a bearing, the gear 17 rotates to drive the hollow rotating rod 8 to rotate, so that the hollow circular ring 9 and the annular blade 10 are simultaneously driven to rotate, so that the rotating annular blade 10 cuts the raw material at the bottom, the fan blade 16 rotates along with the hollow rotating rod 8 to generate wind power to cool the cutting position at the same time of cutting, simultaneously, cooling water is input into the cooling pipe 19 through an external cooling water tank, so that the temperature of the hollow rotating rod 8 is reduced, and the temperature around the cutting position is secondarily reduced, because the rotating block fixed on the cooling pipe 19 is connected with the hollow rotating rod 8 through a bearing, the cooling pipe 19 does not rotate along with the hollow rotating rod 8, after the annular blade 10 cuts the raw material, the polishing disc 11 on the annular blade 10 immediately enters the cutting position of the raw material, the polishing disc 11 rotates along with the annular blade 10, so as to polish the cut and improve the quality of raw materials, at this time, the external suction fan makes the inside of the hollow rotating rod 8 generate suction through the air pipe 20, so as to make the inside of the hollow ring 9 generate suction through the second through hole 15, at this time, the end of the rubber stopper 42 which is not fixed is sucked up, the chips generated by polishing enter the inside of the hollow ring 9 through the first through hole 12 on the hollow ring 9, fall down the inside of the hollow ring 9 under the blocking of the arc-shaped filter screen 14, so as to realize the cleaning and collection of the polished chips, because the air pipe 20 is movably connected with the hollow rotating rod 8 through the sealed bearing, the air pipe 20 does not rotate along with the hollow rotating rod 8, at the same time, the wind power generated by the absorbed chips carries out the tertiary cooling on the cut, meanwhile, the wind blown out by the external fan enters the second corrugated pipe 34 and then enters, then the cutting fluid is blown out of the periphery of the cutting position through the air outlet holes 37 to realize cooling of the cutting position for four times, multiple cooling can timely dissipate a large amount of heat generated by friction when the annular blade 10 and the raw material are cut, damage to the raw material and the annular blade 10 is reduced, product quality is effectively improved, the replacement period of the annular blade 10 is effectively prolonged, cost is saved, after one-time cutting is finished, the controller starts the motor 22 to continuously move the movable frame 6, when the first infrared emitter 25 on the movable frame 6 moves until the infrared ray emitted by the first infrared emitter is received by the next first infrared receiver 36, the controller receives a signal to stop the motor 22, the annular blade 10 moves to a position right above the next position of the raw material to be cut, the steps are repeated until the raw material is cut, and fixed-length cutting is realized, and because the position of the multiple first infrared receivers 36 can be adjusted, the adjustment step is to unscrew the fastening bolts 47 on the slide block 35, release the locking between the fixed plate 28 and the slide block 35, then because the two hollow frames 32 are connected through the first corrugated pipe 33 and the second corrugated pipe 34, the hollow frames 32 and the slide block 35 on the hollow frames 32 can be moved left and right along the fixed plate 28 to the required position, then the fastening bolts 47 are screwed to fix the slide block 35, at the moment, the first infrared receivers 36 on the slide block 35 are adjusted accordingly, the distance between the two first infrared receivers 36 is the cutting length of the raw material, further, the fixed length cutting of multiple lengths is realized, the application range is expanded, the implementation mode specifically solves the problems that the prior art generates a large amount of heat due to friction when the cutter cuts the light steel keel, and if the heat is not dissipated in time, the keel and the cutter are damaged, the product quality is easily affected, the cutter is easily replaced frequently, and the cost is increased.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.