CN101374642A - Device for grinding cutting blade of automatic cutting device - Google Patents
Device for grinding cutting blade of automatic cutting device Download PDFInfo
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- CN101374642A CN101374642A CNA2007800033978A CN200780003397A CN101374642A CN 101374642 A CN101374642 A CN 101374642A CN A2007800033978 A CNA2007800033978 A CN A2007800033978A CN 200780003397 A CN200780003397 A CN 200780003397A CN 101374642 A CN101374642 A CN 101374642A
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- Prior art keywords
- shearing knife
- knife
- mentioned
- cutting
- unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/08—Means for treating work or cutting member to facilitate cutting
- B26D7/12—Means for treating work or cutting member to facilitate cutting by sharpening the cutting member
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/3806—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface
- B26F1/3813—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface wherein the tool head is moved in a plane parallel to the work in a coordinate system fixed with respect to the work
- B26F1/382—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface wherein the tool head is moved in a plane parallel to the work in a coordinate system fixed with respect to the work wherein the cutting member reciprocates in, or substantially in, a direction parallel to the cutting edge
Abstract
A device for grinding a cutting blade of an automatic cutting device, which improve durability of the cutting blade and maintains the blade so that it cuts cleanly in the same manner as when it was new. The device for grinding the cutting blade (8) has contact position changing means (55) for changing the position of contact of grinding means (43a, 43b) relative to the cutting edge (8) by changing the position of a supporting shaft for rockably supporting the grinding means (43a, 43b).
Description
Technical field
The present invention relates to the cutting pattern improvement of the lapping device of the shearing knife of the automatic Scissoring device of cutting sheeting continuously that a kind of basis is programmed in advance.
Background technology
As the lapping device of the shearing knife of automatic Scissoring device, the patent documentation 1 that known this case applicant formerly proposes.
The lapping device of the shearing knife that this communique is put down in writing, it constitutes has: rotating cylinder, insert and be connected with shearing knife, can support shearing knife with moving back and forth, and can be that the center rotation changes the cutting direction with the axle parallel with vibration-direction; Grinding unit is arranged to and can be contacted with shearing knife in above-mentioned rotating cylinder and separate; Slip ring is arranged on the periphery of above-mentioned rotating cylinder, can follow the rotation direction of rotating cylinder and rotates; Locking unit is arranged on outside the radial direction of above-mentioned rotating cylinder, can limit above-mentioned slip ring by above-mentioned relatively Cutting table; And switch unit, when slip ring is limited by above-mentioned locking unit, drive rotating cylinder and rotate, when not limiting, keep the state that grinding unit is left from shearing knife above-mentioned grinding unit is contacted with shearing knife by the relative slide displacement between slip ring and the rotating cylinder.
No. the 3390219th, patent documentation 1 Japan Patent
In the lapping device of the shearing knife of the automatic Scissoring device in the above-mentioned scheme formerly, the relative shearing knife of mixing roll always make into the oscillation center of constant position with constant radius swing, from near the part the point of a knife of shearing knife contact and about alternately begin to grind, shearing knife is ground with the diameter of grinding stone itself.
Along with shearing knife continues to grind like this, the size of shearing knife (tread) shortens, and therefore, the point of a knife angle when existing with new product (Figure 11 A) is compared the point of a knife angle and become big tendency (with reference to Figure 11 C).
Like this, when the point of a knife angle became big, the cutting edge of a knife or a sword degree reduced, the cutting precise decreasing.
And when the point of a knife angle became big, the resistance that the cutting of relative shearing knife is advanced also increased, and its result is special under the situation of synthetic fibers system cloth and silk, and the heating that the resistance when also existing owing to cutting causes is easy to generate deposited problem.
And then, make the size of shearing knife shorten in grinding, the rigidity of shearing knife reduces, big thereby the point of a knife angle becomes, under the situation that the resistance that cutting is advanced increases, the shearing knife of having to change early also has problems on durability.
Summary of the invention
The present invention is in view of the above problems and proposes, and its purpose is to provide a kind of lapping device of shearing knife of automatic Scissoring device, can improve durability, and same sharp cutting edge of a knife or a sword degree can keep with new product the time.
To achieve these goals, the lapping device of the shearing knife of automatic Scissoring device of the present invention, it is a kind of like this shearing knife lapping device that is used to grind shearing knife, it comprises: rotating cylinder, insert and to be connected with the shearing knife that moves back and forth and the sheeting that is positioned on the Cutting table is carried out cutting, can support above-mentioned shearing knife with moving back and forth, and can be that the center rotation changes the cutting direction with the axle parallel with vibration-direction; Grinding unit is arranged to and can and be separated with the shearing knife contact; Slip ring is arranged on the periphery of above-mentioned rotating cylinder, can follow the rotation direction of rotating cylinder and rotates; Locking unit is arranged on outside the radial direction of above-mentioned rotating cylinder, can limit above-mentioned slip ring by above-mentioned relatively Cutting table; And switch unit, when slip ring is limited by above-mentioned locking unit, driving rotating cylinder rotates, when not limiting above-mentioned grinding unit is contacted with shearing knife by the relative slide displacement between slip ring and the rotating cylinder, the state that maintenance makes grinding unit leave from shearing knife, its topmost being characterised in that, have contact position and change the unit, make the position change of swingably grinding unit being carried out the pivot fulcrum of pivotal support, thereby can change the contact position of the relative shearing knife of grinding unit.
And, the shearing knife lapping device of automatic cutting machines of the present invention, its feature also is, contact position changes the unit to have and be configured to relatively rotate cylindrical shell base member and cross over the drive division that is provided with and is used for producing the rotatable phase difference between base member and the slip ring between rotating cylinder and base member in relative rotation; On slip ring, form the abradant cam path of terminal part of abradant cam path of point of a knife and blade; One side of the grinding unit that is provided with in the both sides of shearing knife contacts with nose part, and the opposing party contacts with the terminal part of blade and grinds shearing knife; And reduce accordingly with the tread of shearing knife, change the contact position of the relative shearing knife of grinding unit.
The invention effect
Shearing knife lapping device according to automatic cutting machines of the present invention, have contact position and change the unit, change the position of the pivot fulcrum of pivotal support grinding unit swingably, thereby can change the contact position of the relative shearing knife of grinding unit, when making grinding unit contact shearing knife, utilizing contact position to change the pivot fulcrum that the unit makes the base end part that leading section is provided with the tilting member of mixing roll carry out pivotal support swingably is subjected to displacement, therefore change the contact position of shearing knife and mixing roll thus, the point of a knife angle of the shearing knife of grinding can be ground to form the acute angle same with new product.
Thus, have in the time of to keep with new product roughly same sharp cutting edge of a knife or a sword degree, keep the advantage of high cutting precision.
And, be located at the side contact nose part of the grinding unit of shearing knife both sides, the opposing party contacts the terminal part of blade and grinds in the structure of shearing knife, the resistance that does not almost have the cutting of relative shearing knife to advance increases, and can eliminate as in the past the heating that causes because of the resistance when the cutting synthetic fibers system cloth and silk deposited problem takes place easily.
And then even grinding makes the tread of shearing knife shorten, the rigidity of shearing knife reduces, the resistance that the cutting of relative shearing knife is advanced also increases hardly, thereby can prolong the time of changing shearing knife, correspondingly can improve durability.
In addition, grind the diverse location of shearing knife respectively at each grinding unit, particularly a side grinding unit grinds the nose part timesharing, the opposing party's grinding unit grind point of a knife the inclined plane peak side end (terminal part of blade) and in the structure that forms, can further reduce the resistance that the cutting of relative shearing knife is advanced, also have when improving cutting speed, the heating that the resistance when preventing because of cutting synthetic fibers system cloth and silk as much as possible causes produces deposited.
Description of drawings
Fig. 1 is the perspective view of automatic cutting machines with lapping device of shearing knife of the present invention.
Fig. 2 is the perspective view that the summary of the cutting head part of expression automatic Scissoring device of the present invention constitutes.
Fig. 3 is the front view with the partly cut-away of the control module of the lapping device of the shearing knife in the automatic Scissoring device of the present invention and R axle unit part.
Fig. 4 is the rotation transfer unit skeleton diagram partly of the lapping device of the shearing knife in the automatic Scissoring device of the present invention.
Fig. 5 is the acting ring structural map partly of the lapping device of the shearing knife in the automatic Scissoring device of the present invention.
Fig. 6 is the acting ring structural map partly of the lapping device of the shearing knife in the automatic Scissoring device of the present invention.
Fig. 7 is the angle shift mechanism perspective view partly of the lapping device of the shearing knife in the automatic Scissoring device of the present invention.
Fig. 8 is the acting ring action specification figure partly of the lapping device of the shearing knife in the automatic Scissoring device of the present invention.
Fig. 9 is the acting ring action specification figure partly of the lapping device of the shearing knife in the automatic Scissoring device of the present invention.
Figure 10 is the key diagram of grinding state of the lapping device of the shearing knife in the automatic Scissoring device of the present invention.
Figure 11 is the cutaway view of the shearing knife that compares of the shearing knife after the lapping device grinding of shearing knife and shearing knife of the present invention after in the past lapping device is ground.
The specific embodiment
Below, the preferred implementation of lapping device of the shearing knife of automatic Scissoring device of the present invention is described with reference to the accompanying drawings.
Embodiment
Fig. 1 is the overall perspective of automatic cutting machines, number in the figure 1 whole expression automatic cutting machines.
This automatic cutting machines (being called cutter) 1, stack a plurality of sheetings 4 of putting as the grey cloth of clothes etc. on smooth supporting surface (Cutting table) 3 upper stratas that constitute by a plurality of bristle brush 2, cover by airtight thin slice 5 on it, thus this sheeting 4 is absorbed and fixed on the supporting surface 3.
Be used for these sheetings 4 are cut into the cutting 6 of regulation shape, be configured in movably along on the mobile beam 7 of the length direction (X-direction) of cutter 1 along the width (Y direction) of cutter 1.
The basic comprising of cutting 6 comprises: shearing knife 8 as shown in Figure 2; Utilize shearing knife vibration to make a cutting body 9 of vertical direction (Z-direction) double vibrations of shearing knife 8 edges and above-mentioned supporting surface 3 with motor (not shown); Make the air pressure cylinder 10 of a cutting body 9 along Z-direction lifting displacement; Mobile unit 12 makes above-mentioned air pressure cylinder 10 move along Z-direction, so that the front end 8a of shearing knife 8 has predetermined interval apart from the surperficial 4a of sheeting 4; As the presser feet 13 of push part, be placed on sheeting 4 on the supporting surface 3 with the pushing of the circumference of shearing knife 8; Detect the position detection unit 14 of the position on the Z-direction of above-mentioned presser feet 13; Response is from the output of this position detection unit 14 and control the control module 15 of above-mentioned mobile unit 12.
In an above-mentioned cutting body 9, be built-in with not shown crank mechanism, utilize this crank mechanism to make above-mentioned shearing knife 8 along Z axle double vibrations.
Be provided with that to be used to make shearing knife 8 be the R axle main body 16 that angular displacement takes place at the center with the Z axle, constitute and make point of a knife carry out the cutting action towards the cutting direction of programmed settings in advance.Such cutting body 9 drives with shearing knife 8 oscilaltions by above-mentioned air pressure cylinder 10 along the axis of guide 17,17 of pair of parallel.
In the cutting starting position or to locate than position of wide-angle conversion cutting direction etc., the piston rod 10a of air pressure cylinder 10 shrinks back and keeps shearing knife 8 to thrust the state of sheeting 4, when arriving the cutting end position, piston rod 10a elongation, shearing knife 8 is extracted from sheeting 4.
Like this, the non-cutting position under the state that shearing knife 8 is extracted from sheeting 4, the front end 8a that is set to this shearing knife 8 has above-mentioned predetermined interval.
Above-mentioned mobile unit 12 has: the helical axis 20 that screws togather with the nut part 19 that is fixed on the sliding panel 18; Be fixed on the pulley 21 of the upper end of helical axis 20; Be used for driving the Z axle lifting motor 22 of helical axis 20 along the positive and reverse return veer; Be fixed on the Z axle and promote pulley 24 on the output shaft 23 of motor 22; Across between each pulley 21,24 and the synchronous belt 25 that volume is hung; Detect the upper limit position of above-mentioned nut part 19 and a pair of limit switch 26,27 of lower position.
Above-mentioned Z axle promotes motor 22, is installed on the framework 28 of cutting 6, and when the switch form of any one party of each limit switch 26,27 changed, control module 15 output stop signals made above-mentioned Z axle promote motor 22 to stop.Above-mentioned sliding panel 18 formed gathering sill (not shown) on the framework 28 of cutting 6 is free to slide on Z-direction.
In the present embodiment, in order to detect the stacked thickness t of sheeting 4, use presser feet 13.
From the state that the piston rod 31 that makes air pressure cylinder 30 extends, utilize the Z axle to promote motor 22 sliding panel 18 is descended, between decrement phase, if the surperficial 4a butt of presser feet 13 and sheeting 4 then stops above-mentioned Z axle and promotes motor 22.The butt state of this presser feet 13 is detected by position detection unit 14.
The formation of above-mentioned position detection unit 14 comprises: from the roller 33 with peripheral part, the upper end butt of presser feet 13 being carried out the tooth bar 34 that installation sheet 32 that axle supports erects upward; Pinion 35 with these tooth bar 34 engagements; And the rotary encoder 36 that detects the rotation amount of pinion 35.
On the above-mentioned cutting body 9, hang down along the driving shaft 38 of Z axle double vibrations, and on this driving shaft 38, be provided with above-mentioned shearing knife 8 and make this shearing knife 8 can freely carry out angle displacement and loading and unloading.
R axle main body 16 is fixed on the above-mentioned sliding panel 18.The other end of the above-mentioned axis of guide 29,29 remains in the acting ring 39.
As shown in Figure 2, initial point cam 56 is installed above acting ring 39, origin detector 57 closely is installed with the circumference of initial point cam 56.With the protruding part of initial point cam 56 when the position of origin detector 57 as the point of a knife of shearing knife 8 towards benchmark.
And, label 48 among Fig. 2 is tread detecting units of shearing knife 8, this tread detecting unit 48, when making shearing knife 8 be pulled to the non-cutting position of setting by above-mentioned mobile unit 12 making air pressure cylinder 10 elongation, make before the action pin 49 and then pushing test pin 50 retreats and allows, according to the tread of the above-mentioned shearing knife 8 of variation instrumentation of amount of movement and pushing force.
That is, before test pin 50 so that contact detect pushing force during point of a knife, and test pin 50 is made a concession, when pushing force disappears, show in the structure of position of point of a knife, if the tread of shearing knife 6 reduces, the then inlet of test pin 50 increase.
Fig. 3～Fig. 6 represents the formation relevant with the grinding of shearing knife 8, and Fig. 3 is that Fig. 4 represents to rotate the skeleton diagram of transfer unit 52 parts with the front view of the partly cut-away of R axle main body 16 parts, and Fig. 5 and Fig. 6 represent the structural map of acting ring 39 parts.
What the rotation of planetary gear 51 that is engaged on interior all sides of internal-gear 44 was delivered to each mixing roll (grinding unit) 43a, 43b is rotation transfer unit 52, with the rotation fastening of cam ring 45 (slip ring) and that remove this fastening state is locking unit 53 (with reference to Fig. 3, Fig. 4).
And, as shown in Figure 3, acting ring 39, rotate the earth's axis freely via a pair of bearing 54,54 up and down and be supported on the fixing R axle main body 16 of relative sliding panel 18, the contact position that is provided for changing the contact position of the relative shearing knife 8 of mixing roll 43a, 43b below acting ring 39 changes unit 55.
Fixed installation sheet 75a on R axle main body 16, have air pressure cylinder 75 on the installation sheet 75a and be fixed on butt sheet 76 on the leading section of piston rod of air pressure cylinder 75, this butt sheet 76 be provided with the 45a of tooth portion of cam ring 45 relatively outer peripheral face fastening/separation and with the rotation fastening of cam ring 45 and remove the above-mentioned locking unit 53 (with reference to Fig. 3) of this fastening state.
As Fig. 5 and shown in Figure 6, above-mentioned contact position changes unit 55, and to have shearing knife 8 with the core that connects acting ring 39 be center and rotating base member 58 and the drive division 62 that base member 58 is carried out rotating operation.
Clip shearing knife 8 and be provided with paired mixing roll 43a, 43b, when cutting, leave from shearing knife 8 and form contactless state.
When grinding, the coaxial cam ring 45 that is arranged on the below of above-mentioned internal-gear 44 is locked unit 53 from outside limits.Follow the direction of rotation of acting ring 39, mixing roll 43a, 43b swing in the mode of contact shearing knife 8.Above-mentioned internal-gear 44 is transmitted the power drive that comes from motor 46 via synchronous belt 47 and pulley 46a and is rotated (with reference to Fig. 2 and Fig. 3).
Cross over this fan-shaped circular-arc periphery and form the bracket support 58b of portion, support with carriage 60 in the two sides of the 58b of bracket support portion part installation shaft, and axle support with the end of carriage 60 swingably pivotal support be used to support mixing roll 43a, 43b spool the base end part of tilting member 61.
Thus, mixing roll 43a, 43b, when the state that cam ring 45 is not locked because of locking unit 53, the center line C that is configured to shearing knife 8 is the position (with reference to Fig. 5) of line of symmetry.
On cam ring 45, as shown in Figure 5, from inner peripheral surface towards cam path 77a, 77b, 78a, the 78b of radial direction outside incision and be the position of line of symmetry at the center line C that two groove 80a, 80b of the extension of the both sides of abutting part 79 are formed on shearing knife 8 along Zhou Fangxiang, the grinding of the peak side end on the inclined plane that the cam path 77a of one side, 77b are used for point of a knife (terminal part of blade), cam path 78a, the 78b of opposite side are used to grind point of a knife.
In the other end of each tilting member 61a, 61b, formation is formed on follower 73a, the 73b that above-mentioned cam path 77a, 77b, 78a, 78b on the cam ring 45 guide.Described each tilting member 61a, 61b are used for being supported on relatively axle to support with the 8 switching mixing roll 43a of the shearing knife on the carriage 60, the contact of 43b, the switch unit that leaves.
In addition, each tilting member 61a, 61b and each support be with having compression helical spring 81 between the carriage 60, towards near the direction of shearing knife 8 to mixing roll 43a, the 43b application of force.
Thus, each follower 73a, 73b when promptly each follower 73a, 73b are in the face of each cam path 77a, 77b, 78a, 78b, apply spring force towards the direction with each cam surface butt in the face of the radial direction outside.
Thus, each mixing roll 43a, 43b for circular driving belt 11 is driven, constitute the direction rotation that relative shearing knife 8 is ground towards point of a knife part 8a along the terminal part from blade via the cross section.
Above-mentioned drive division 62 has gripper shoe 63 as shown in Figure 7; Drive with arm 65, its base end part is installed in the central top of gripper shoe 63 swingably with the neck portion of bolt 64; The bearing part 68 of rectangle is provided with and drives with the chimeric recess 67 of the jut 66 of the mid portion of arm 65, and bearing part 68 is fixed on the above-mentioned bracket support 58b of portion by installed part 69, and gripper shoe 63 is fixed on the acting ring 39 by bolt 63a.
Drive with the leading section 65a of arm 65 be formed on operation usefulness recess 70 on the cam ring 45 chimeric the time, base end part 65b is fixed on the acting ring 39 and constitutes.
Thus, locking unit 53 is when the outer peripheral face of the 45a of tooth portion of cam ring 45 leaves, acting ring 39, cam ring 45, base member 58 and each mixing roll 43a, 43b rotates with cam ring 45, under the state of butt sheet 76 rotation of restriction cam ring 45 of locking unit 53 with the 45a of the tooth portion engagement of cam ring 45, drive the rotation of R axle drive motor 40, when acting ring 39 rotates a little, the rotation of acting ring 39 is delivered on the base member 58 that is formed with bracket support portion 59 via the driving of drive division 62 jut 66 with arm 65, with the core of the acting ring 39 that shearing knife 8 was connected as center of rotation and rotating operation base member 58, therefore, the anglec of rotation of base member 58 becomes the angle littler than the anglec of rotation of acting ring 39, this angulation poor (rotatable phase is poor).
This differential seat angle, as described later, when the grinding of shearing knife 8, make the contact position of the relative shearing knife 8 of mixing roll 43a, 43b move to the terminal part side of blade, therefore, cause tread to reduce accordingly with the wearing and tearing of the grinding of shearing knife 8 etc., undertaken by the amount of spin increase that makes the acting ring 39 that under the state of the rotation of restriction cam ring 45, rotates.
Rotation by acting ring 39 changes the above-mentioned shearing knife 8 of direction, as Fig. 5 and shown in Figure 6, embeds and erects in the gathering sill that is arranged on the guide member 82 in the acting ring 39 and be directed, and is fixed with installation sheet 83 in guide member 82.
In installation sheet 83,2 swing arm 84a, 84b are connected freely by pin 85a, 85b swing, and free end 86a, the 86b of each swing arm 84a, 84b embeds among above-mentioned groove 80a, the 80b.
Each swing arm 84a, 84b make each free end 86a, 86b be subjected to the spring force of approaching mutually direction by draft helical spring 87.At butt sheet 76 when the 45a of tooth portion of cam ring 45 leaves, cam ring 45 and base member 58 and the rotation of acting ring 39 one, follower 73a, 73b rest on the central A of two cam path 77a, 77b, 78a, 78b.
Under this state, when the air pressure cylinder 75 of locking unit 53 is supplied with compressed air, its piston rod elongation and make and the outer peripheral face butt of butt sheet 76 and the 45a of tooth portion stop the rotation of cam ring 45 thus.
Abrasive action to the lapping device that as above constitutes describes below.
8 pairs of the shearing knife that utilization is controlled by control module 15 are layered in sheeting 4 on the cutter 1 when cutting off, as shown in Figure 5, follower 73a, 73b rest on the central A of two cam path 77a, 77b, 78a, 78b, mixing roll 43a, 43b back and forth drive shearing knife 8, cutting sheeting 4 in the state lower edge Z-direction of leaving from shearing knife 8.
Then make air pressure cylinder 10 elongations and make shearing knife 8 be promoted to the non-cutting position of setting by above-mentioned mobile unit 12, thereby under the situation that the shearing knife 8 that the nose part 8a of shearing knife 8 rises from the upper surface of sheeting 4 is ground, under locking unit 53 makes the state that the rotation of cam ring 45 stops, when driving motor 40 rotations of R axle driving usefulness, acting ring 39 rotates to (for example counterclockwise) a little to folk prescription.
Its result, the anglec of rotation of base member 58 become the angle littler than the anglec of rotation of acting ring 39, and the pivot fulcrum portion of base end part of tilting member 61a, 61b that makes pivotal support mixing roll 43a, 34b is to peak side shifting (displacement).
In addition, under the state of the free end 86b of a side swing arm 84b and abutting part 79 butts, the spring force of the follower 73b resistance draft helical spring 87 of the tilting member 61b of one side, in the time of the expansion of the direction generation angular displacement ground of the swing arm 84a that leaves opposite side, embed among the abradant cam path 78b of point of a knife of cam ring 45, its result, tilting member 61b swings along clockwise direction, and the nose part of mixing roll 43b and shearing knife 8 is divided and is contacted and grind the point of a knife part.
In addition, the follower 73a of opposite side embeds among the abradant cam path 77a of terminal part of blade, tilting member 61a swings in the counterclockwise direction, and this mixing roll 43a contacts (with reference to Fig. 8) with the peak side end (terminal part of blade) on the inclined plane of point of a knife the face that it contacted is ground.
Like this, after the peak side end (terminal part of blade) on the inclined plane of the part of the side tool point that forms shearing knife 8 and opposite side point of a knife ground, under the situation that the terminal part of the blade of the point of a knife of the opposite side of shearing knife 8 and a side is ground, acting ring 39 is rotated in a clockwise direction, as shown in Figure 5, mixing roll 43a, 43b begin further to be rotated in a clockwise direction from the state that leaves shearing knife 8.
Like this, with foregoing roughly similarly, in Fig. 8, below follower 73b embed the abradant cam path 77b of terminal part of the blade of cam ring 45, under the state of the free end 86a of the swing arm 84a of opposite side and abutting part 79 butts, the spring force of opposing draft helical spring 87, mixing roll 43b is to the direction generation angular displacement of the swing arm 84b that leaves a side, and mixing roll 43b contacts with the terminal part of blade and grinds the surface that it contacts.
In Fig. 8, the follower 73a of top embeds among the abradant cam path 78a of point of a knife, and mixing roll 43a contacts with the nose part branch, grinds its surface that contacts (point of a knife part).
As mentioned above, when shearing knife 8 is ground by mixing roll 43a, 43b repeatedly, the tread of shearing knife 8 for example from the A condition of 10 new product through B and reduce to the C state.
Cause tread to reduce accordingly with the wearing and tearing of the grinding of shearing knife 8 etc., the amount of spin of the acting ring 39 that rotates under the confined state of the rotation of cam ring 45 increases, thereby as shown in Figure 9, the position of the pivot fulcrum of pivotal support tilting member 61a, 61b is swingably changed, supported relative shearing knife 8 position contacting of mixing roll 43a, 43b can be moved be adjusted to the peak side.
Thus, the point of a knife angle of shearing knife 8 always can be ground to form the acute angle same with new product, the point of a knife angle of the shearing knife of grinding shown in Figure 10 (C) can be ground to form the acute angle same with new product.
For the minimizing of above-mentioned tread, the action pin 49 of tread detecting unit 48 is advanced with pushing test pin 50, it is made a concession, detect the wear extent of the point of a knife of shearing knife 8 according to the variation of amount of movement and pushing force.
As mentioned above, under the state of butt sheet 76 rotation of restriction cam ring 45 of locking unit 53 with the 45a of the tooth portion engagement of cam ring 45, the rotation of the acting ring 39 that rotates is passed to base member 58 via drive division 62, the base member 58 that carries out rotating operation has differential seat angle with respect to the anglec of rotation of acting ring 39 and rotates (rotatable phase is poor), when the grinding of shearing knife 8, make mixing roll 43a thus, therefore the contact position of the relative shearing knife 8 of 43b moves to the peak side, the point of a knife angle of the shearing knife of being ground can be ground to form the acute angle same with new product (with reference to Fig. 1 (B).
In addition, shown in Figure 11 (B), after grinding formed the terminal part of blade, the resistance that the cutting of relative shearing knife 8 is advanced reduced, and can also improve cutting speed.
In the shearing knife lapping device of automatic cutting machines of the present invention, no matter which position of rotation is shearing knife 8 be in, the state that can both utilize locking unit 53 formation that the rotation of cam ring 45 is stopped, thereby make mixing roll 43a, 43b contact and grind with shearing knife 8, therefore for to other cutting design transfer etc., shearing knife 8 is extracted and is interrupted cutting when action from sheeting 4, and though shearing knife towards how, can both grind equably and promptly.
Like this, the action of the cutting below when abrasive action finishes, transferring to.
When the grinding of shearing knife 8, each mixing roll 43a, 43b can utilize the spring force of above-mentioned draft helical spring 81 to adjust towards the butt pressure of each shearing knife 8.
In addition, in the above-described embodiment, each relative mixing roll 43a of shearing knife 8 will be clipped, the side of 43b is used to grind point of a knife, opposite side is used to grind the terminal part of blade and acts on shearing knife 8 simultaneously, but be not limited thereto, even omit the abradant cam path 77a of terminal part of blade, 77b, perhaps tilting member 61a, the follower 73a of 61b, 73b embeds this cam path 77a, 77b, by being provided for preventing mixing roll 43a, the limiting part (adjustable stops) that 43b contacts with the terminal part of blade etc., also can be with mixing roll 43a, 43b is used for point of a knife and grinds, and makes it alternately act on shearing knife 8.
Claims (5)
1. the shearing knife lapping device of an automatic cutting machines is the shearing knife lapping device that is used to grind shearing knife, and it comprises:
Rotating cylinder is inserted to be connected with and is moved back and forth and to the shearing knife that the sheeting that is positioned on the Cutting table carries out cutting, can support above-mentioned shearing knife with moving back and forth, and can be that the center rotation changes the cutting direction with parallel with vibration-direction;
Grinding unit is arranged to and can and be separated with the shearing knife contact;
Slip ring is arranged on the periphery of above-mentioned rotating cylinder, can follow the rotation direction of rotating cylinder and rotates;
Locking unit is arranged on outside the radial direction of above-mentioned rotating cylinder, can limit above-mentioned slip ring by above-mentioned relatively Cutting table; And
Switch unit, when slip ring is limited by above-mentioned locking unit, drive rotating cylinder and rotate, when not limiting above-mentioned grinding unit is contacted with shearing knife by the relative slide displacement between slip ring and the rotating cylinder, the state that maintenance makes grinding unit leave from shearing knife
It is characterized in that having contact position and change the unit, make the position change of swingably grinding unit being carried out the pivot fulcrum of pivotal support, thereby can change the contact position of the relative shearing knife of grinding unit.
2. the shearing knife lapping device of automatic cutting machines as claimed in claim 1, it is characterized in that contact position changes the unit to have and be configured to relatively rotate cylindrical shell base member and cross over the drive division that is provided with and is used for producing the rotatable phase difference between base member and the slip ring between rotating cylinder and base member in relative rotation.
3. the shearing knife lapping device of automatic cutting machines as claimed in claim 1 or 2 is characterized in that, forms the abradant cam path of terminal part of abradant cam path of point of a knife and blade on slip ring.
4. the shearing knife lapping device of automatic cutting machines as claimed in claim 3 is characterized in that, a side of the grinding unit that is provided with in the both sides of shearing knife contacts with nose part, and the opposing party contacts with the terminal part of blade and grinds shearing knife.
5. as the shearing knife lapping device of each described automatic cutting machines in the claim 1～4, it is characterized in that, reduce accordingly, change the contact position of the relative shearing knife of grinding unit with the tread of shearing knife.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006015019 | 2006-01-24 | ||
| JP015019/2006 | 2006-01-24 | ||
| PCT/JP2007/050902 WO2007086338A1 (en) | 2006-01-24 | 2007-01-22 | Device for grinding cutting blade of automatic cutting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101374642A true CN101374642A (en) | 2009-02-25 |
| CN101374642B CN101374642B (en) | 2010-08-04 |
Family
ID=38309131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800033978A Expired - Fee Related CN101374642B (en) | 2006-01-24 | 2007-01-22 | Device for grinding cutting blade of automatic cutting device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2007086338A1 (en) |
| CN (1) | CN101374642B (en) |
| WO (1) | WO2007086338A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825231A (en) * | 2017-09-08 | 2018-03-23 | 广东拓荒牛智能切割科技股份有限公司 | A kind of cut-off knife head sharpening system |
| CN107825505A (en) * | 2017-09-08 | 2018-03-23 | 广东拓荒牛智能切割科技股份有限公司 | A kind of head cylinder platen press material structure |
| CN109944049A (en) * | 2017-12-20 | 2019-06-28 | 株式会社岛精机制作所 | Cutter |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8661952B2 (en) | 2007-11-09 | 2014-03-04 | Shima Seiki Mfg., Ltd. | Cutting machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4841822A (en) * | 1986-05-08 | 1989-06-27 | Gerber Scientific, Inc. | Cutter head and knife for cutting sheet material |
| US4732064A (en) * | 1987-03-05 | 1988-03-22 | Gerber Garment Technology, Inc. | Apparatus and method for sharpening edges of reciprocating blade |
| US4984492A (en) * | 1989-06-23 | 1991-01-15 | Gerber Garment Technology, Inc. | Cutting blade and method for cutting sheet material |
| JPH0386493A (en) * | 1989-08-25 | 1991-04-11 | Takatori Haitetsuku:Kk | Cutting device for sheet material |
| FR2652029B1 (en) * | 1989-09-15 | 1995-01-27 | Lectra Systemes Sa | AUTOMATIC SHARPENING METHOD AND DEVICE FOR CUTTING BLADES SUCH AS THOSE USED IN AUTOMATIC CUTTING MACHINES. |
| JPH0584693A (en) * | 1991-09-27 | 1993-04-06 | Shima Seiki Mfg Ltd | Cutting blade |
| JP3390219B2 (en) * | 1993-08-20 | 2003-03-24 | 株式会社島精機製作所 | Cutting blade polishing device |
-
2007
- 2007-01-22 WO PCT/JP2007/050902 patent/WO2007086338A1/en active Application Filing
- 2007-01-22 JP JP2007555924A patent/JPWO2007086338A1/en active Pending
- 2007-01-22 CN CN2007800033978A patent/CN101374642B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825231A (en) * | 2017-09-08 | 2018-03-23 | 广东拓荒牛智能切割科技股份有限公司 | A kind of cut-off knife head sharpening system |
| CN107825505A (en) * | 2017-09-08 | 2018-03-23 | 广东拓荒牛智能切割科技股份有限公司 | A kind of head cylinder platen press material structure |
| CN109944049A (en) * | 2017-12-20 | 2019-06-28 | 株式会社岛精机制作所 | Cutter |
| CN109944049B (en) * | 2017-12-20 | 2022-02-15 | 株式会社岛精机制作所 | Cutting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007086338A1 (en) | 2007-08-02 |
| CN101374642B (en) | 2010-08-04 |
| JPWO2007086338A1 (en) | 2009-06-18 |
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