CN104385357A - Mechanism and method for automatically rectifying deviation of cutting knife in cutting bed - Google Patents
Mechanism and method for automatically rectifying deviation of cutting knife in cutting bed Download PDFInfo
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- CN104385357A CN104385357A CN201410603916.6A CN201410603916A CN104385357A CN 104385357 A CN104385357 A CN 104385357A CN 201410603916 A CN201410603916 A CN 201410603916A CN 104385357 A CN104385357 A CN 104385357A
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Abstract
The invention provides a mechanism for automatically rectifying the deviation of a cutting knife in a cutting bed. The mechanism comprises a rotating mechanism, the cutting knife, a knife fixing mechanism and a rotating cutterhead, wherein a knife rail seat is fixed on the rotating cutterhead; a plurality of bearings are mounted in the knife rail seat; the upper end of the cutting knife is fixed in the knife fixing mechanism, and the lower end of the cutting knife is arranged in a penetrating manner and supported in the multiple bearings; the knife fixing mechanism is mounted in the rotating mechanism; the rotating mechanism is also fixedly connected with the rotating cutterhead through a connecting shaft; the mechanism further comprises an industrial control computer, a sensor controller, a sensor stop block fixed on the rotating cutterhead, a sensor probe and a motor for driving the rotating mechanism to operate; the sensor stop block is fixedly connected with the knife rail seat; the sensor probe is opposite to the sensor stop block and is connected with the sensor controller; the sensor controller and a driver of the motor are connected with the industrial control computer. The mechanism for automatically rectifying the deviation of the cutting knife can be used for realizing automatic deviation rectification of the cutting knife, so that the cutting knife can always run on a correct cutting trace.
Description
Technical field
The present invention relates to a kind of cutting, particularly relate to cut-off knife automatic deviation rectifying mechanism and method in a kind of cutting.
Background technology
Cutting is a kind of sewing device being used for automatic cutting cloth, and be widely used in clothes manufacturing, it utilizes the data of computer settings to control the movement locus (i.e. cutting track) of cut-off knife, and then cuts out required cut-parts.Cutting mainly comprises Cutting table, cut-off knife, solid cutter mechanism, rotating mechanism, guidance panel and vacuum breathing apparatus etc.; In cutting process, cut-off knife does the rotary motion of upper and lower rectilinear motion and 360 degree, and the upper end of cut-off knife is arranged in solid cutter mechanism, Gu cutter mechanism is connected with rotating mechanism again, thus makes cut-off knife complete the cutting of various curve or straight line.
The cut-off knife used in current cutting is the longer and cut-off knife of thinner thickness of length, when the cloth of institute's cutting is thicker or cloth is comparatively hard or cut-off knife cutting speed is too high, the resistance that cut-off knife lower end is subject to is larger, thus cut-off knife lower end is deformed under the effect of this resistance, cause cut-off knife to depart from default cutting track, cause the scale error occurred during cutting between fluctuating plate cut-parts, finally affect cutting quality, increase production cost, reduce enterprises production efficiency.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of can automatically correct cut-off knife distortion, make cut-off knife operate on correct cutting track all the time cutting in cut-off knife automatic deviation rectifying mechanism.
For achieving the above object, the invention provides cut-off knife automatic deviation rectifying mechanism in a kind of cutting, comprise rotating mechanism, cut-off knife, Gu cutter mechanism and rotary head, described rotary head is fixed with a cutter rail chair, in this cutter rail chair, multiple bearing is installed, the upper end of described cut-off knife is fixed in solid cutter mechanism, lower end wears and is supported in multiple bearing, described solid cutter mechanism is arranged in rotating mechanism, rotating mechanism is also fixedly connected with rotary head by a connecting axle, described rotary head and cut-off knife synchronous axial system, also comprise industrial computer, sensor controller, be fixed on the sensor block on rotary head and sensor probe, and drive the motor of rotating mechanism action, described sensor block is fixedly connected with cutter rail chair, described sensor probe and sensor block are oppositely arranged, for the position offset of measuring transducer block, described sensor probe is connected with sensor controller, described sensor controller, the driver of motor is all connected with industrial computer.
Preferably, described bearing has six, is positioned at the left side of cut-off knife, rear side and right side, and the left side of cut-off knife, rear side and right side are equipped with about two bearings distributed.
Further, described sensor block comprises orthogonal fixed part and offset portion, and described fixed part is fixedly connected with the rear end of cutter rail chair, and described offset portion is in the left side of cutter rail chair or right side.
Preferably, described rotating mechanism comprises intermeshing driving gear and driven gear, and described driving gear is fixedly connected with motor, and described driven gear is fixed on a rotor, described solid cutter mechanism is arranged on rotor, and the upper end of described connecting axle is fixedly connected with driven gear.
Further, described rotor is fixed with a dead ring, multiple horizontally disposed Wire channel in building is offered in this dead ring, signals collecting wire is all equipped with in each Wire channel in building, the output of described sensor probe is connected with a monitor signal transfer wire, this monitor signal transfer wire is spirally wound on from the bottom to top after on connecting axle and is connected with many signals collecting wires, and many signals collecting wires are connected with sensor controller.
Preferably, described rotary head is fixed with a sensor stand, described sensor probe is arranged in sensor stand.
Preferably, described motor is a servomotor, and the driver of motor is a servo-driver.
As mentioned above, cut-off knife automatic deviation rectifying mechanism in the cutting that the present invention relates to, has following beneficial effect:
In this cut-off knife automatic deviation rectifying mechanism, the deformation force that cut-off knife is subject to passes to cutter rail chair by bearing, cutter rail chair is fixedly connected with sensor block, therefore the deformation force of cut-off knife is passed to again sensor block by cutter rail chair, make sensor block that position skew occur, this position offset is also passed to sensor controller by the position offset of sensor probe detecting sensor block as electronic signals, thus feed back to industrial computer, industrial computer sends instruction to the driver of motor according to the feedback signal of sensor controller, to reduce the rotating speed of motor, thus reduce the cutting speed of cut-off knife, the actual resistance that final reduction cut-off knife is subject to, ensure that cut-off knife is unlikely to deform under the effect of this actual resistance, and then reach the object of cut-off knife automatic deviation correction, cut-off knife is caused to operate in all the time on correct cutting track.
The object of the present invention is to provide a kind of can automatically correct cut-off knife distortion, make cut-off knife operate on correct cutting track all the time cutting in cut-off knife automatic correction method.
For achieving the above object, the invention provides cut-off knife automatic correction method in a kind of cutting, comprise cut-off knife automatic deviation rectifying mechanism in cutting as above, in described cutting, cut-off knife automatic correction method comprises the steps:
A, preset in industrial computer cut-off knife lower end when deforming suffered minimum drag be F;
B, in cutting process, the first actual resistance that cut-off knife lower end is subject to is F1;
When cut-off knife deforms under the effect of the first actual resistance F1, the deformation force of cut-off knife acts on the bearing in cutter rail chair, this deformation force is passed to sensor block, makes sensor block that position skew occur by cutter rail chair, the position offset X of described sensor probe detecting sensor block, and this position offset X is passed to sensor controller as electronic signals, the signal of telecommunication that sensor controller is received again feeds back to industrial computer;
C, industrial computer calculate the first actual resistance F1 suffered by cut-off knife lower end according to the signal of telecommunication that sensor controller feeds back, and calculate the difference F2 between the first actual resistance F1 and default minimum drag F;
D, industrial computer send instruction to the driver of motor according to the size of described difference F2, make motor reduction, thus make rotary head and the synchronous reduction of speed of cut-off knife by rotating mechanism;
After cut-off knife reduction of speed, the second actual resistance that cut-off knife lower end is subject to is F3, and this second actual resistance F3 is less than or equal to minimum drag F.
As mentioned above, cut-off knife automatic correction method in the cutting that the present invention relates to, has following beneficial effect:
In this cut-off knife automatic correction method, the deformation force that cut-off knife is subject to passes to cutter rail chair by bearing, cutter rail chair is fixedly connected with sensor block, therefore the deformation force of cut-off knife is passed to again sensor block by cutter rail chair, make sensor block that position skew occur, this position offset X is also passed to sensor controller by the position offset X of sensor probe detecting sensor block as electronic signals, thus feed back to industrial computer, industrial computer carries out automatically calculating rear transmission instruction to the driver of motor according to the feedback signal of sensor controller, to reduce the rotating speed of motor, thus reduce the cutting speed of cut-off knife, the actual resistance (even if the second actual resistance F3 is less than or equal to minimum drag F) that final reduction cut-off knife is subject to, ensure that cut-off knife is unlikely to deform under the effect of this actual resistance, and then reach the object of cut-off knife automatic deviation correction, cut-off knife is caused to operate in all the time on correct cutting track.
Accompanying drawing explanation
Fig. 1 is principle framework of the present invention.
Fig. 2, Fig. 3 are structural representation of the present invention.
Fig. 4 is the connection diagram of cut-off knife and cutter rail chair in Fig. 2.
Element numbers explanation
1 cut-off knife
2 rotating mechanisms
21 driving gears
22 driven gears
23 rotors
3 solid cutter mechanisms
4 rotary heads
41 hold wire casing
5 cutter rail chairs
6 bearings
7 connecting axles
8 sensor blocks
81 fixed parts
82 offset portion
9 sensor probes
10 motors
11 dead rings
12 signals collecting wires
13 monitor signal transfer wires
14 sensor stands
141 horizontal parts
142 vertical component effects
15 pressing plates
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this description can understand other advantages of the present invention and effect easily.
Notice, structure, ratio, size etc. that this description institute accompanying drawings illustrates, content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this description as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
As shown in Figure 1 to Figure 3, the invention provides cut-off knife automatic deviation rectifying mechanism in a kind of cutting, comprise rotating mechanism 2, cut-off knife 1, Gu cutter mechanism 3 and rotary head 4, described rotating mechanism 2 is arranged on fixed mount, described rotary head 4 is fixed with a cutter rail chair 5, in this cutter rail chair 5, multiple bearing 6 is installed, the upper end of described cut-off knife 1 is fixed in solid cutter mechanism 3, lower end wears and is supported in multiple bearing 6, described solid cutter mechanism 3 is arranged in rotating mechanism 2, rotating mechanism 2 is also fixedly connected with rotary head 4 by a connecting axle 7, described rotating mechanism 2 driven rotary cutterhead 4 and cut-off knife 1 synchronous axial system, simultaneously, described cut-off knife 1 also does upper and lower rectilinear motion.In cutting process, when cut-off knife 1 lower end deforms because of the effect by resistance, particularly when flexural deformation left or flexural deformation to the right occur cut-off knife 1, cut-off knife 1 departs from its correct cutting track, in order to the distortion of cut-off knife 1 automatically can be corrected, the present invention also comprises industrial computer, sensor controller, be fixed on the sensor block 8 on rotary head 4 and sensor probe 9, and drive the motor 10 of rotating mechanism 2 action, described sensor block 8 is fixedly connected with cutter rail chair 5, described sensor probe 9 is oppositely arranged with sensor block 8, for the position offset of measuring transducer block 8, described sensor probe 9 is connected with sensor controller, described sensor controller, the driver of motor 10 is all connected with industrial computer.Preferably, described motor 10 is a servomotor, and the driver of motor 10 is a servo-driver.
The present invention also provides cut-off knife automatic correction method in a kind of cutting, and comprise cut-off knife automatic deviation rectifying mechanism in cutting as above, in described cutting, cut-off knife automatic correction method comprises the steps:
A, preset in industrial computer cut-off knife 1 lower end when deforming suffered minimum drag be F, this minimum drag F is the critical value of cut-off knife 1 suffered drag size when deforming, and when the resistance be namely subject to when cut-off knife 1 is greater than F, cut-off knife 1 deforms; When the resistance that cut-off knife 1 is subject to is less than or equal to F, cut-off knife 1 can not deform;
B, in cutting process, the first actual resistance that cut-off knife 1 lower end is subject to is F1;
When cut-off knife 1 deforms under the effect of the first actual resistance F1, the deformation force causing cut-off knife 1 to deform equals F1-F, the deformation force of cut-off knife 1 acts on the bearing 6 in cutter rail chair 5, this deformation force is passed to sensor block 8, makes sensor block 8 that position skew occur by cutter rail chair 5, the position offset X of described sensor probe 9 detecting sensor block 8, and this position offset X is passed to sensor controller as electronic signals, the signal of telecommunication that sensor controller is received again feeds back to industrial computer;
C, industrial computer calculate the first actual resistance F1 suffered by cut-off knife 1 lower end according to the signal of telecommunication that sensor controller feeds back, and calculate the difference F2 between the first actual resistance F1 and default minimum drag F;
D, industrial computer send instruction to the driver of motor 10 according to the size of described difference F2, make motor 10 reduction of speed, thus make rotary head 4 and the synchronous reduction of speed of cut-off knife 1 by rotating mechanism 2;
After cut-off knife 1 reduction of speed, the second actual resistance that cut-off knife 1 lower end is subject to is F3, this second actual resistance F3 is less than or equal to minimum drag F, therefore cut-off knife 1 can not deform under the effect of the second actual resistance F3, thus the automatic distortion corrected cut-off knife 1 and produce in cutting process, ensure that cut-off knife 1 operates on correct cutting track all the time, the cutting quality of final raising cutting precision, cut-parts and cutting efficiency.
So, in the cut-off knife automatic deviation rectifying mechanism that the present invention relates to and method, the deformation force of cut-off knife 1 passes to cutter rail chair 5 by bearing 6, cutter rail chair 5 is fixedly connected with sensor block 8, therefore the deformation force of cut-off knife 1 is passed to again sensor block 8 by cutter rail chair 5, make sensor block 8 that position skew occur, this position offset is also passed to sensor controller by the position offset of sensor probe 9 detecting sensor block 8 as electronic signals, thus feed back to industrial computer, industrial computer sends instruction to the driver of motor 10 according to the feedback signal of sensor controller, to reduce the rotating speed of motor 10, thus reduce the cutting speed of cut-off knife 1, the actual resistance that final reduction cut-off knife 1 is subject to, and make the size of this actual resistance be not enough to make cut-off knife 1 produce distortion, and then reach the object of cut-off knife 1 automatic deviation correction in cutting process, cut-off knife 1 is caused to operate in all the time on correct cutting track.
Preferably, the material reply elasticity making described cutter rail chair 5 is very responsive, with make cutter rail chair 5 exactly perception cut-off knife 1 pass to the deformation force of bearing 6, and this deformation force is passed to sensor block 8 exactly, thus ensure the accuracy that deformation force transmits, the accuracy of final guarantee industrial computer result of calculation, improves the degree of accuracy of cut-off knife 1 automatic deviation correction.
In the present embodiment, as shown in Figure 4, described bearing 6 has six, is positioned at the left side of cut-off knife 1, rear side and right side, and the left side of cut-off knife 1, rear side and right side are equipped with about two bearings distributed 6.In Fig. 4, all directions are defined as follows: above-below direction refers to the length direction of cut-off knife 1; Fore-and-aft direction refers to the moving direction of cut-off knife 1, and to be front towards the direction of cut-off knife 1 blade to, the direction towards cut-off knife 1 knife back be rear to; Left and right directions and fore-and-aft direction perpendicular and in same level.Cut-off knife 1 is in cutting process, flexural deformation left, to the right flexural deformation, bend forward distortion or flexural deformation backward may be there is, when cut-off knife 1 occur bend forward distortion or backward flexural deformation time, because deformation direction is parallel with the moving direction (i.e. cutting course bearing) of cut-off knife 1, therefore the distortion of the bend forward of cut-off knife 1 and backward flexural deformation can not make cut-off knife 1 depart from correct cutting track.But, when there is flexural deformation left or flexural deformation to the right in cut-off knife 1, because deformation direction is vertical with the moving direction (i.e. cutting course bearing) of cut-off knife 1, therefore the flexural deformation left of cut-off knife 1 and flexural deformation to the right cause cut-off knife 1 to depart from correct cutting track.Therefore, the application carries out automatic deviation correction mainly for the flexural deformation left of cut-off knife 1 and flexural deformation to the right, now, as shown in Figure 4, described sensor block 8 comprises orthogonal fixed part 81 and offset portion 82, described fixed part 81 is fixedly connected with the rear end of cutter rail chair 5, and described offset portion 82 is positioned at left side or the right side of cutter rail chair 5, and described sensor probe 9 is positioned at the left side of offset portion 82 or right side and is oppositely arranged with offset portion 82.After adopting said structure, when flexural deformation left or flexural deformation to the right occur cut-off knife 1, described sensor block 8 offsets left or offsets to the right, makes the spacing between sensor probe 9 and sensor block 8 become large or diminish.In addition, described rotary head 4 is fixed with a sensor stand 14, this sensor stand 14 comprises orthogonal horizontal part 141 and vertical component effect 142, described horizontal part 141 is fixedly connected with by screw with rotary head 4, about one through installing hole is provided with in described vertical component effect 142, described sensor probe 9 is fixed in this installing hole, thus described sensor probe 9 is arranged in sensor stand 14.
Further, as shown in Figures 2 and 3, described rotating mechanism 2 comprises intermeshing driving gear 21 and driven gear 22, described driving gear 21 is fixedly connected with motor 10, described driven gear 22 is fixed on a rotor 23, described solid cutter mechanism 3 is arranged on rotor 23, and the upper end of described connecting axle 7 is fixedly connected with driven gear 22.Motor 10 drives driving gear 21 to rotate, and driving gear 21 is meshed with driven gear 22, therefore driven gear 22 rotor driven 23, connecting axle 7 rotate together, thus realizes the synchronous axial system of solid cutter mechanism 3, cut-off knife 1 and rotary head 4.
Preferably, as shown in Figures 2 and 3, the output of described sensor probe 9 is connected with a monitor signal transfer wire 13, this monitor signal transfer wire 13 is connected with many signals collecting wires 12, many signals collecting wires 12 are connected with described sensor controller again, after sensor probe 9 detects the position offset X of sensor block 8, sensor probe 9 exports the current signal of a 0-100mA, this current signal is successively by passing to sensor controller after monitor signal transfer wire 13 and Duo Gen signals collecting wire 12, sensor controller feeds back to industrial computer after this current signal being converted to the DC voltage analog signal of a 0-5V.Further, described rotor 23 is fixed with a dead ring 11, multiple horizontally disposed Wire channel in building is offered in this dead ring 11, many signals collecting wires 12 are located in multiple Wire channel in building respectively, described monitor signal transfer wire 13 is spirally wound on connecting axle 7 from the bottom to top, therefore rotating mechanism 2 is when rotating, rotor 23 drives dead ring 11 to rotate together, the driven gear 22 of rotating mechanism 2 drives connecting axle 7 to rotate together, thus monitor signal transfer wire 13 is rotated with rotating mechanism 2 together with signals collecting wire 12, there is kink to prevent monitor signal transfer wire 13 because of the rotation of rotating mechanism 2 to be wound around, ensure that the position shifted signal that sensor probe 9 detects passes to industrial computer exactly, the normal operation of final guarantee cut-off knife 1 automatic deviation rectifying mechanism.
More preferably, as shown in Figure 4, the upper surface of described rotary head 4 offers an appearance wire casing 41, one end of this appearance wire casing 41 extends to sensor probe 9 place, the other end extends to the lower end of connecting axle 7, and described monitor signal transfer wire 13 is arranged in and holds wire casing 41, and the upper end holding wire casing 41 is provided with a pressing plate 15 be fixedly connected with rotary head 4, thus monitor signal transfer wire 13 is fixed in appearance wire casing 41, prevent the kink of monitor signal transfer wire 13 to be wound around further.
In sum, the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (8)
1. cut-off knife automatic deviation rectifying mechanism in a cutting, comprise cut-off knife (1), rotating mechanism (2), Gu cutter mechanism (3) and rotary head (4), described rotary head (4) is fixed with a cutter rail chair (5), in this cutter rail chair (5), multiple bearing (6) is installed, the upper end of described cut-off knife (1) is fixed in solid cutter mechanism (3), lower end wears and is supported in multiple bearing (6), described solid cutter mechanism (3) is arranged in rotating mechanism (2), rotating mechanism (2) is also fixedly connected with rotary head (4) by a connecting axle (7), described rotary head (4) and cut-off knife (1) synchronous axial system, it is characterized in that: also comprise industrial computer, sensor controller, be fixed on the sensor block (8) on rotary head (4) and sensor probe (9), and drive the motor (10) of rotating mechanism (2) action, described sensor block (8) is fixedly connected with cutter rail chair (5), described sensor probe (9) and sensor block (8) are oppositely arranged, for the position offset of measuring transducer block (8), described sensor probe (9) is connected with sensor controller, described sensor controller, the driver of motor (10) is all connected with industrial computer.
2. cut-off knife automatic deviation rectifying mechanism in cutting according to claim 1, it is characterized in that: described bearing (6) has six, be positioned at the left side of cut-off knife (1), rear side and right side, and the left side of cut-off knife (1), rear side and right side are equipped with about two bearings distributed (6).
3. cut-off knife automatic deviation rectifying mechanism in cutting according to claim 1, it is characterized in that: described sensor block (8) comprises orthogonal fixed part (81) and offset portion (82), described fixed part (81) is fixedly connected with the rear end of cutter rail chair (5), and described offset portion (82) is positioned at left side or the right side of cutter rail chair (5).
4. cut-off knife automatic deviation rectifying mechanism in cutting according to claim 1, it is characterized in that: described rotating mechanism (2) comprises intermeshing driving gear (21) and driven gear (22), described driving gear (21) is fixedly connected with motor (10), described driven gear (22) is fixed on a rotor (23), described solid cutter mechanism (3) is arranged on rotor (23), and the upper end of described connecting axle (7) is fixedly connected with driven gear (22).
5. cut-off knife automatic deviation rectifying mechanism in cutting according to claim 4, it is characterized in that: described rotor (23) is fixed with a dead ring (11), multiple horizontally disposed Wire channel in building is offered in this dead ring (11), signals collecting wire (12) is all equipped with in each Wire channel in building, the output of described sensor probe (9) is connected with a monitor signal transfer wire (13), this monitor signal transfer wire (13) is spirally wound on from the bottom to top after on connecting axle (7) and is connected with many signals collecting wires (12), many signals collecting wires (12) are connected with sensor controller.
6. cut-off knife automatic deviation rectifying mechanism in cutting according to claim 1, it is characterized in that: described rotary head (4) is fixed with a sensor stand (14), described sensor probe (9) is arranged in sensor stand (14).
7. cut-off knife automatic deviation rectifying mechanism in cutting according to claim 1, is characterized in that: described motor (10) is a servomotor, and the driver of motor (10) is a servo-driver.
8. a cut-off knife automatic correction method in cutting, is characterized in that: comprise cut-off knife automatic deviation rectifying mechanism in the cutting as described in any one of claim 1-7, in described cutting, cut-off knife automatic correction method comprises the steps:
A, preset in industrial computer cut-off knife (1) lower end when deforming suffered minimum drag be F;
B, in cutting process, the first actual resistance that cut-off knife (1) lower end is subject to is F1;
When cut-off knife (1) deforms under the effect of the first actual resistance F1, the deformation force of cut-off knife (1) acts on the bearing (6) in cutter rail chair (5), this deformation force is passed to sensor block (8), makes sensor block (8) that position skew occur by cutter rail chair (5), the position offset X of described sensor probe (9) detecting sensor block (8), and this position offset X is passed to sensor controller as electronic signals, the signal of telecommunication that sensor controller is received again feeds back to industrial computer;
C, industrial computer calculate the first actual resistance F1 suffered by cut-off knife (1) lower end according to the signal of telecommunication that sensor controller feeds back, and calculate the difference F2 between the first actual resistance F1 and default minimum drag F;
D, industrial computer send instruction to the driver of motor (10) according to the size of described difference F2, make motor (10) reduction of speed, thus make rotary head (4) and the synchronous reduction of speed of cut-off knife (1) by rotating mechanism (2);
After cut-off knife (1) reduction of speed, the second actual resistance that cut-off knife (1) lower end is subject to is F3, and this second actual resistance F3 is less than or equal to minimum drag F.
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| CN201410603916.6A CN104385357A (en) | 2014-10-31 | 2014-10-31 | Mechanism and method for automatically rectifying deviation of cutting knife in cutting bed |
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| DE3218564A1 (en) * | 1982-05-17 | 1983-11-24 | Atlas Handelskontor GmbH, 7421 Mehrstetten | Apparatus for manually controlled cutting out |
| CA2147570A1 (en) * | 1994-04-26 | 1995-10-27 | Investronica Sistemas, S.A. | Pilot device for a suspended knife of a cutting machine for cutting sheet material |
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Application publication date: 20150304 |