CN202509236U - Cutting knife device and cylindrical sewing machine with same - Google Patents
Cutting knife device and cylindrical sewing machine with same Download PDFInfo
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- CN202509236U CN202509236U CN2012200773256U CN201220077325U CN202509236U CN 202509236 U CN202509236 U CN 202509236U CN 2012200773256 U CN2012200773256 U CN 2012200773256U CN 201220077325 U CN201220077325 U CN 201220077325U CN 202509236 U CN202509236 U CN 202509236U
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Abstract
The utility model provides a cutting knife device and a cylindrical sewing machine with the same. The cutting knife device has good durability and can easily increase the overlap of the fabric during sewing so as to increase the sewing quantity of the fabric and a sewing needle. The cutting knife device comprises a pressure plate, and the pressure plate uses two pressure feet which are respectively arranged by extension from a pressure main body configured on a needle plate to the two sides of a needle falling position to press the fabric on the needle plate from the upper part. On the other pressure foot, a movable cutting knife which can slide on a fixed cutting knife and simultaneously perform reciprocating motion is arranged. One pressure foot comprises a carrying surface for carrying the fixed cutting knife and a first conical surface which forms an acute angle with the carrying surface and is in butt joint with one side part of the fixed cutting knife on the carrying surface. A fixed cutting knife holding part comprises a second conical surface, the other side part of the fixed cutting knife on the carrying surface is in butt joint with the second conical surface, and the second conical surface of the fixed cutting knife holding part is used for downwards pressing the fixed cutting knife and holding the fixed cutting knife.
Description
Technical field
The utility model relates to cutter and possesses its cylindrical sewing machine.
Background technology
In the past, as cylindrical sewing machine with tubular support portion, for example shown in the patent documentation 1, the known receipts cuff sewing that has at undershirt or T-shirt etc., the arm-outtake type sewing machine that uses in the crotch seam of Briefs, Ms's underpants, swimming suit.
This arm-outtake type sewing machine is provided with horizontal arm section, and this horizontal arm section is with respect to the tubular support portion of the feeding of carrying out cloth along its length, from oblique the extending of base end side court of support portion.Arm-outtake type sewing machine is crooked and become the shape directly over the leading section that makes its leading section be positioned at support portion from midway with horizontal arm section.
And when making operation, it is overlapping up and down that two clothes that will pass through support portion spread all over Rack from separately ora terminalis, and be clamped in the support portion needle plate and and the pressing plate of needle plate upper surface butt between, be sent to needle downing position then.Particularly, shown in Figure 1A, the end edge portion a1 of two cloth KL, KR, a2 are sent in the path between the left and right sides presser feet on the pressing plate under butt joint and the state holded up.Then, through in the process of this path, shown in Figure 1B, cut off end edge portion a1, the top e1 of a2, the e2 that docks and hold up with fixed cutting tool and movable cutting knife.Then, through guiding part that overlapping b1, the b2 of the cloth KL that trims, KR is superimposed, deliver to needle downing position.The needlework c that drops to the sewing needle of this needle downing position through utilization sews up each other and makes.
For the overlapping width d of the cloth implementing such stitching well, need make to be sent to needle downing position seam width corresponding to this Sewing machines.
In recent years; Known to the Sewing machines shown in the patent documentation 2; This Sewing machines except possess be used to trim as the cutting knife of the cloth ora terminalis of sewing up object be used to guide the cloth that is trimmed and make it superimposed up and down guiding part; The upper-lower position that has also added through regulating fixed cutting tool changes the off-position of cloth, thereby can change the pressing plate of the overlapping width d of cloth.
Movable cutting knife 8 is maintained at a side of separating with a distolateral blade 8a who is formed at length direction.In addition, movable cutting knife bearing 8b is supported by shank type support 8c axle around the axle of above-below direction, and this shank type support 8c is the center swing with not shown pressure bar.In addition, this shank type support 8c is connected as known on the Sewing machines in the not shown Sewing machines arm on the axle, and the rotation through axle on the Sewing machines drives.And, on presser feet 2, be formed with the guide hole 4 of up/down perforation, the chimeric fixed cutting tool bearing 5 that keeping in this guide hole 4.Fixed cutting tool 6 is fixed through the tightening of limit screw 5b that screw thread above fixed cutting tool bearing 5 combines through being inserted into after being located at the fenestra 2a on the presser feet 2 under the state among the maintenance groove 5a on the side face of being located at fixed cutting tool bearing 5.As shown in Figure 3, fixed cutting tool bearing 5 moves up and down along guide hole 4 with respect to presser feet 2, and tightens it is projected in the guide hole 4 through in position screw thread being combined in limit screw 7 on the presser feet 2.Protrude in the par 5c of the front end of the limit screw 7 in the guide hole 4 by the outer peripheral face formation that is pressed in cutting knife bearing 5, fixed cutting tool bearing 5 is fixed on the presser feet 2.
Through this structure; In presser feet 2; In the scope of height H, regulate the position of fixed cutting tool 6 along the vertical direction, the off-position (the engagement height of cutting knife) of the cloth that change forms through fixed cutting tool 6 with in the sliding-contact of the movable cutting knife 8 of the slide of fixed cutting tool 6.
Patent documentation
Patent documentation 1: TOHKEMY 2009-261815 communique
Patent documentation 2: TOHKEMY 2010-69100 communique
But, as shown in Figure 3 in the Sewing machines that can change cutter location in the past, form movable cutting knife 8 in the fenestra 2a of the presser feet 2 of pressing plate 1 (with reference to Fig. 2) along the structure of being slided by the fixed cutting tool of cutting knife bearing 5 cantilever support 6.
Therefore; If along with the increase of making number of times makes the fixed cutting tool 6 and the cloth action frequency of cutting of movable cutting knife 8 increase; Then can not support fixation cutting knife 6 through cantilevered fashion, fixed cutting tool 6 becomes the state of inclination, and existence can not be carried out the problem with the sliding-contact of movable cutting knife 8 preferably.
In addition; Shown in Figure 10 A; Because the lap of cloth is less with respect to the width of seam mark, the pin so the outside of the cloth end after being cut off by cutting knife falls, the cloth end is inconsistent with the needle falling point in the seam stitch width direction outside; Formed wiring insufficient strength of the stitching of two clothes and seam mark become ugly, have the problem of the quality decline of sewings.
The utility model content
The utility model is to make in view of such problem points; The arm-outtake type sewing machine that its purpose is that a kind of cutter is provided and possesses it; Can shown in Figure 10 B, when making, increase the lap of cloth; Make the end that cuts off the overlapping cloth up and down in back consistent, strengthened the formed wiring intensity of seam mark of sewings, can form the seam mark of appearance looks elegant with the needle falling point in the seam stitch width direction outside.
One technical scheme of the cutter of the utility model adopts following structure, promptly possesses: pressing plate, and use from the main body of pushing that is configured on the needle plate and extend two presser feets of setting respectively to the both sides of needle downing position, press the cloth on the eedle presser from the top; Tabular fixed cutting tool, dismounting are installed on the presser feet freely; And movable cutting knife, remain on another presser feet, while on the said fixing cutting knife, slide, move back and forth; And; Utilize the above-mentioned movable cutting knife of said fixing cutting knife and slip; Cut-out is to be inserted into the end edge portion of the cloth between above-mentioned two presser feets at the state of erectting on the above-mentioned needle plate, wherein, an above-mentioned presser feet possesses the fixed cutting tool holding section; This fixed cutting tool holding section has: carry the face of putting, carry and put the said fixing cutting knife; And the 1st conical surface, and put face in above-mentioned year and acutangulate, and with a sidepiece butt of putting the said fixing cutting knife on the face in above-mentioned year; Clipping said fixing cutting knife and above-mentioned the 1st conical surface opposed position; Move along the vertical direction and be provided with the fixed cutting tool holding member freely, this fixed cutting tool holding member possess to the direction that is inclined to symmetry with above-mentioned the 1st conical surface tilt and with the 2nd conical surface of the other side butt of said fixing cutting knife; Put on the face at above-mentioned year, through using said fixing cutting knife holding member the other side of the said fixing cutting knife of an above-mentioned sidepiece and above-mentioned the 1st conical surface butt is pushed downwards, thereby keep fixed cutting tool with above-mentioned the 2nd conical surface.
One technical scheme of the cutter of the utility model adopts following structure, that is: the fixed cutting tool holding member comprises: the fixed cutting tool support possesses above-mentioned the 2nd conical surface with the other side butt of said fixing cutting knife; And the fixed cutting tool bracket screw, screw thread is attached to the above-mentioned presser feet and tightens through connecting the said fixing cutter supporter from the top, and the said fixing cutter supporter is pushed downwards.
One technical scheme of the cutter of the utility model adopts following structure, that is: above-mentioned the 1st conical surface and above-mentioned the 2nd conical surface are to clip the said fixing cutting knife and the tapering of symmetry; One sidepiece of said fixing cutting knife and the other side are to put the face direction accordingly towards above-mentioned year with above-mentioned the 1st conical surface and above-mentioned the 2nd conical surface to launch the taper side that shape forms with the bottom.
One technical scheme of the cutter of the utility model adopts following structure, that is: the utilization of said fixing cutter supporter screw is pushed the said fixing cutter supporter downwards through the screw head that rotates this screw and descend.
One technical scheme of the cutter of the utility model adopts following structure; That is: an above-mentioned presser feet has fenestra; The direction quadrature ground that stretches out of this fenestra and an above-mentioned presser feet connects and forms along level, while insert the fixed cutting tool and the reciprocating movable cutting knife that on fixed cutting tool, slides; Inboard at above-mentioned fenestra is provided with: the face and the 1st conical surface are put in above-mentioned year of said fixing cutting knife holding section; Be connected above-mentioned the 1st conical surface the upper end and with put the opposed end face of face in above-mentioned year; And above-mentioned the 2nd conical surface of above-mentioned cutter supporter.
One technical scheme of the cutter of the utility model adopts following structure; That is: an above-mentioned presser feet has fenestra; The direction quadrature ground that stretches out of this fenestra and an above-mentioned presser feet connects and forms along level, while insert the fixed cutting tool and the reciprocating movable cutting knife that on fixed cutting tool, slides; Putting face in above-mentioned year is the protuberance that forms in the bottom of above-mentioned fenestra.
One technical scheme of the cutter of the utility model adopts following structure, that is: in the bottom of fixed cutting tool support, be provided with screw position and separate and outstanding downwards foot.
The structure that one technical scheme of the Sewing machines of the utility model adopts does; Through two clothes are sent to the needle downing position of Sewing machines support portion after superimposed up and down with specific length from separately ora terminalis; Sew up each other, above-mentioned Sewing machines comprises: above-mentioned cutter; At above-mentioned cutter and be configured in the above-mentioned cloth of clamping between the needle plate of upper surface of above-mentioned Sewing machines support portion, above-mentioned two clothes are cut to specific length from separately ora terminalis, deliver to above-mentioned needle downing position.
According to the utility model; Can make the end that cuts off the overlapping cloth up and down in back consistent with the needle falling point in the seam stitch width direction outside; Strengthen the formed wiring intensity of seam mark of sewings, can form outward appearance seam mark more attractive in appearance, so improved the quality of sewings.
Description of drawings
Figure 1A-Fig. 1 D is the flat cutaway view of making that is used to explain arm-outtake type sewing machine in the past.
Fig. 2 is the exploded perspective view of the pressing plate in the arm-outtake type sewing machine in the past.
Fig. 3 is the major part cutaway view of the stationary state of the cutting knife bearing in the pressing plate of presentation graphs 2.
Fig. 4 is the stereogram that possesses the Sewing machines of the cutter that the embodiment of the utility model relates to.
Fig. 5 is the stereogram of structure of the cutter that relates to of embodiment of expression the utility model.
Fig. 6 is the side view of the major part structure of this cutter of expression.
Fig. 7 is the amplification view of X part stationary state, shown in Figure 5 of the cutting knife bearing in the expression pressing plate.
Fig. 8 is a cutaway view of having changed the pressing plate of fixed cutting tool in the cutter that relates to of the embodiment at the utility model.
Fig. 9 A, Fig. 9 B are the figure that makes thing that cutter that expression utilizes the embodiment of the utility model to relate to has carried out cutting cloth.
Figure 10 A, Figure 10 B are the sketch mapes of the state after expression is made.
Figure 11 A, Figure 11 B are the vertical views of making thing.
Description of reference numerals
100 arm-outtake type sewing machines
134 needle plates
200 cutters
210 pressing plates
211 push main body
213 1 presser feets
215 another presser feets
230 fixed cutting tools
One sidepiece of 232 fixed cutting tools
The other side of 233 fixed cutting tools
240 movable cutting knifes
250 fixed cutting tool holding members
252 fixed cutting tool supports
254 fixed cutting tool bracket screws
The 254a screw head
256 the 2nd conical surfaces
The fenestra of 260 1 presser feets
Put face in 261 years
The 261a protuberance
262 the 1st conical surfaces
263 end faces
264 fixed cutting tool holding sections
The fenestra of 280 another presser feets
The fixed cutting tool that 330 thickness are bigger
One sidepiece of the fixed cutting tool that 332 thickness are bigger
The other side of the fixed cutting tool that 333 thickness are bigger
KL, KR cloth
The specific embodiment
Below, with reference to the embodiment of accompanying drawing detailed description the utility model.
Arm-outtake type sewing machine 100 as cylindrical sewing machine shown in Figure 4 has the different Sewing machines framework 110 of the bearing of trend of support portion 112 and arm 114 and Sewing machines framework 110 is fixed to the carriage 120 on the workbench.
In arm 114, front forms to the extended head 118 in the leading section top of support portion to leading section one lateral buckling of support portion 112.
On head 118 as the leading section of this arm 114, towards under can hang down up and downly and supporting pressure bar 130.The pressing plate 210 of cutter 200 is installed in the bottom of this pressure bar 130.
In cutter 200, pressing plate 210 is same with pressing plate in the past, with presser feet 213 about being sent under the state that butt joint is holded up of the end edge portion a1 of two cloth KL, KR, a2, between 215.And the top e1, e2 that cut off end edge portion a1 that butt joint holds up, a2 through fixed cutting tool 230 and movable cutting knife 240 are each other.That is, cloth is cut into separately length b1, b2 (overlapping portion) from end edge portion a1, the a2 that holds up.Then, overlapping the b1 of the cloth KL that trims, KR, b2 through guiding part superimposed (with reference to Fig. 1), are delivered to the needle downing position that is positioned at the cloth feeding direction downstream of support portion 112 than fixed cutting tool 230 and movable cutting knife 240.In other words, arm-outtake type sewing machine 100 is through two cloth KL, KR are sent to the needle downing position of support portion 112, the Sewing machines of sewing up each other after superimposed up and down from separately ora terminalis (end edge portion a1, a2) with specific length.Arm-outtake type sewing machine 100 comprises cutter 200; At cutter 200 and be configured in clamping cloth between the needle plate of upper surface of support portion 112; Two cloth KL, KR are cut to specific length from ora terminalis (end edge portion a1, a2) separately, deliver to needle downing position.
Pressing plate 210 is same with pressing plate in the past, descends through moving down of pressure bar 130, is connected on the needle plate 134 of the leading section upper surface that is set up in support portion 112, to push this needle plate 134.Thus, pressing plate 210 and needle plate 134 between clamping as making the cloth of object.
Be clamped in the cloth between pressing plate 210 and the needle plate 134, through being located at the action of the inner not shown cloth feeding mechanism of support portion 112, be sent to front from the base portion of support portion 112.With this work feed synchronously, through not shown needle bar, via pin through hole 219 (with reference to Fig. 5), with up and down the motion many not shown sewing needles sew up.In addition; As well-known; The needle plate 134 that sets by the needle downing position in support portion (being positioned at the below of pin through hole 219) with the pressing plate 210 that is connected to needle plate 134 upper surfaces with cloth by being pressed on the needle plate; And the feeding tooth of inside through being provided in support portion 112 and the cloth feeding mechanism that on needle plate 134, haunts carries out work feed.
The pressing plate 210 of cutter shown in Figure 4 is compared with pressing plate in the past 1 shown in Figure 2, and only the installation constitution of fixed cutting tool 230 is different, and basic structure is identical with pressing plate 1.
That is, as shown in Figure 5 in pressing plate 210, extending pairing left and right presser feet 213,215 from the main body 211 of pushing that is installed in pressure bar 130 (with reference to Fig. 4) lower end towards the base portion (the importing side of cloth KL, KR) of support portion 112.
Mutual opposed of pairing left and right presser feet 213,215 is parallel, on this a pair of presser feet 213,215, be provided with along on the plane that is parallel to needle plate 134 (with reference to Fig. 4) with the fenestra 260,280 of the direction pass through openings of cloth feeding direction quadrature.
In these fenestras 260,280, be located in the fenestra 260 on the presser feet 213,, can insert fixed cutting tool 230 and be configured to overlap the movable cutting knife 240 on the fixed cutting tool 230 to ground shown in Figure 7 like Fig. 5.
To shown in Figure 7, fixed cutting tool 230 forms rectangular tabular, in the plane that is parallel to needle plate 134 (with reference to Fig. 4), is installed on the presser feet 213 along the direction with the cloth feeding direction quadrature with extending like Fig. 5.
In other words, the both sides of fixed cutting tool 230 have surperficial 230a from fixed cutting tool towards the back side of fixed cutting tool 230b gradually away from, launch a sidepiece 232 and the other side 233 that shape tilts with the bottom.Here, a sidepiece 232 of the both sides of formation fixed cutting tool 230 and the inclination of the other side 233 form with respect to the center (centers between the both sides of fixed cutting tool 230) of width symmetrically, but are not limited thereto.A sidepiece 232 and the other side 233 of both sides in the fixed cutting tool 230, that extend as the direction of edge and cloth feeding direction quadrature; As long as the direction that is separated from each other to the back side 230b side from the surperficial 230a side of fixed cutting tool towards fixed cutting tool tilts, can with arbitrarily angled inclination.
This fixed cutting tool 230 is inserted in the fenestra 260 of a presser feet 213; Make the one of which end side be configured on the off-position in presser feet 213, the path between 215 214 (with reference to Fig. 5), be fixed on the presser feet 213 under the state that the cutting knife holding member 250 that is fixed is pushed downwards.
As shown in Figure 7, the fenestra 260 of a presser feet 213 has: as the face 261 of putting that carries of bottom surface; Be connected to carry with the V font and put on the face 261, promptly put face 261 acutangulate the 1st conical surfaces 262 with carrying; And be connected on the 1st conical surface 262 and put the end face 263 of face 261 arranged opposite with carrying.In fenestra 260, dispose fixed cutting tool holding member 250.
The off-position of cloth is corresponding to put the length that adds fixed cutting tool 230 thickness on the face 261 carrying.That is, off-position becomes the height and position of the surperficial 230a of fixed cutting tool 230.According to this structure, through changing the thickness of fixed cutting tool 230, the off-position of variable cloth can change the overlapping width D of cloth.
In a presser feet 213, face 261 and the 1st conical surface 262 formation fixed cutting tool holding sections 264 are put in carrying of fenestra 260, through this fixed cutting tool holding section 264 and fixed cutting tool holding member 250, fixed cutting tool 230 are fixed on the presser feet 213.
The back side (being equivalent to a bottom surface) 230b through making fixed cutting tool 230 and a sidepiece 232 of fixed cutting tool respectively with carry face 261 of putting (in detail, being to carry the protuberance 261a that puts face 261) and the 1st conical surface 262 butts, configuring fixed cutting knife 230.
Fixed cutting tool holding member 250 have along the vertical direction move be located at freely one on the presser feet 213 fixed cutting tool support 252 and fixed cutting tool support 252 is fixed on a fixed cutting tool bracket screw 254 on the presser feet 213 by being pressed on the fixed cutting tool 230 with fixed cutting tool 230.
Fixed cutting tool support 252 is configured in the fenestra 260 in a presser feet 213.
The side 256 of this fixed cutting tool support 252 is the 1st conical surface 262 the 2nd conical surfaces 256 of configuration opposed to each other mutually that clip fixed cutting tool 230 and a presser feet 213.The 2nd conical surface 256 tilts from the upper end towards the lower end and the 1st conical surface 262 discretely.The fixed cutting tool bracket screw 254 that fixed cutting tool support 252 is tightened from the top is pushed downwards.Along with this is pushed, fixed cutting tool support 252 usefulness are pushed fixed cutting tool 230 downwards with the 2nd conical surface 256 of the other side 233 butts of fixed cutting tool 230 and are fixed.In addition, in the bottom of this fixed cutting tool support 252, be provided with the outstanding 252a of foot downwards.So, a presser feet 213 has fenestra 260, and the direction quadrature ground that stretches out of this fenestra and a presser feet 213 connects and forms along level, while insert the fixed cutting tool 230 and the reciprocating movable cutting knife 240 that on fixed cutting tool 230, slides.Inboard at this fenestra 260 is provided with: the face 261 and the 1st conical surface 262 are put in carrying of fixed cutting tool holding section 264; Be connected the upper end of the 1st conical surface 262 and put face 261 opposed end faces 263 with carrying; And the 2nd conical surface 256 of cutter supporter 252.Carry that to put face 261 are the protuberance 261a that form in the bottom of fenestra 260, carry through this protuberance 261a and put fixed cutting tool 230.In other words, carry the face of putting 261 that carries of putting fixed cutting tool 230 and be protuberance 261a.Thus, when protuberance 261a is ground, in the bottom of fenestra 260 with the concavity part 261b of the side of protuberance 261a as grind, thereby can protuberance 261a easily be ground smoothly, to be suitable for year putting fixed cutting tool 230.
Fixed cutting tool bracket screw 254 is inserted in the screw 267 that forms to the end face 263 of top perforation fenestra 260, and the leading section screw thread is attached to carrying of fenestra 260 and puts among the 268a of box thread portion of face 261 openings.
At this, fixed cutting tool bracket screw 254 forms the diameter of screw head 254a littler but bigger than the diameter of the inserting hole 257 of fixed cutting tool support 252 than screw 267.
Therefore, fixed cutting tool bracket screw 254 has connected in insertion and has inserted under the state of screw 267 in the fixed cutting tool support 252, and screw thread is incorporated into carrying and puts among the 268a of box thread portion of face 261 upper sheds.
In addition, fixed cutting tool bracket screw 254 also can be the state in the fixed cutting tool support 252 that penetrates into that when screw thread combines, inserts.In the case, fixed cutting tool support 252 moves downwards via the screw thread bound fraction with fixed cutting tool bracket screw 254 through fixed cutting tool bracket screw 254 is tightened.At this moment, fixed cutting tool bracket screw 254 becomes the state that can tighten with respect to the 268a of box thread portion, or become can be with respect to carrying the state that face 261 sways of putting.Thus, also can make the diameter of the screw head 254a of fixed cutting tool bracket screw 254 become the diameter littler than the through hole of fixed cutting tool support 252 257.
So, in a presser feet 213, put on the face 261 (protuberance 261a) through via the screw 267 to the top opening fixed cutting tool bracket screw 254 being tightened to carry, the screw head 254a of fixed cutting tool bracket screw 254 pushes fixed cutting tool support 252 downwards.That is, fixed cutting tool bracket screw 254 utilizes through rotating the screw head 254a that this screw descends fixed cutting tool support 252 is pushed downwards.Thus, fixed cutting tool support 252 moves downwards, and the 2nd conical surface 256 also moves downwards.Through moving of the 2nd conical surface 256, through fixed cutting tool 230 being pushed downwards with the other side 233 of the fixed cutting tool of the 2nd conical surface 256 butts.In other words, fixed cutting tool bracket screw 254, screw thread is attached to the presser feet 213 and tightens through connecting fixed cutting tool support 252 from the top, and fixed cutting tool support 252 is pushed downwards.
In addition, in the bottom of this fixed cutting tool support 252, the 252a of foot is giving prominence to downwards.Thus, fixed cutting tool support 252 becomes locational 252a of foot and the fixed cutting tool bracket screw 254 that separates with screw position through being arranged on, and is configured in the state on the face 261 of putting that carries.Thus, if fixed cutting tool bracket screw 254 is tightened, then this screwing force is passed to the 2nd conical surface 256 effectively, can more effectively push the other side 233 of fixed cutting tool 230.
In addition, in this embodiment, the 2nd conical surface 256 becomes the tapering corresponding with the other side of fixed cutting tool 230 233.Therefore, fixed cutting tool support 252 is put on the face 261 and puts face 261 sides and be pressed and move to carrying through fixed cutting tool bracket screw 254 screw threads being combined in carry, and utilize the 2nd conical surface 256 with fixed cutting tool 230 to bottom surface 268 sides, promptly carry the face of putting 261 sides and push.
So; Be fixed in the structure on the presser feet 213 at fixed cutting tool 230 with fixed cutting tool 230; With the both sides of fixed cutting tool 230 (in detail, being a sidepiece 232 and the other side 233 of fixed cutting tool) and keep the shape of the parts (the 1st conical surface the 262, the 2nd conical surface 256) of these both sides made from the top towards the below away from, launch the taper that shape tilts with the bottom.In other words, the 1st conical surface 262 and the 2nd conical surface 256 are to clip fixed cutting tool 230 and the tapering of symmetry.A sidepiece 232 and the other side 233 of this fixed cutting tool 230 is to put face 261 directions are launched shape formation with the bottom taper side towards carrying accordingly with the 1st conical surface 262 and the 2nd conical surface 256.And; Through by with the 1st conical surface 262 of a sidepiece 232 butts of fixed cutting tool 230 and with the 1st conical surface 262 and the 2nd conical surface 256 of the other side 233 butts of fixed cutting tool 230; Fixed cutting tool 230 is pushed from the top, limited fixed cutting tool 230 moving to the top.In addition; Only changed at the tapering that the sidepiece 232 do not change fixed cutting tool and the other side 233 are installed under the situation of fixed cutting tool (fixed cutting tool 330 for example shown in Figure 8) of thickness, also can the fixed cutting tool after this replacing 330 be fixed on the presser feet 213 reliably.Through regulating the thickness of fixed cutting tool 230, can regulate the upper surface position of fixed cutting tool 230.
Like this, movably cutting knife 240 is being fixed on the fixed cutting tool 230 enterprising line slips on the presser feet 213 removably.
In detail, movable cutting knife 240 at one end portion's (leading section) side has blade 241, in the base end part side, is likewise kept by not shown cutting knife bearing with in the past movable cutting knife 240.This cutting knife bearing is same with in the past movable cutting knife 240, rotate through jog to be supported on freely on the shank type support 290 (with reference to Fig. 4), but and the spring force that is supported for antagonistic spring move freely along the vertical direction.As known, it is that swing freely at the center that this shank type support 290 is mounted to the pressure bar, and this pressure bar is connected on the not shown driving mechanism that is disposed in the arm 114.
Thus, movable cutting knife 240 is moved in fenestra 280 by fenestra 280 guidings of another presser feet 215, and in fenestra 260, sliding-contact is on one side moved on one side on fixed cutting tool 230.Particularly, in Fig. 5 along left and right directions (B direction), i.e. the direction reciprocating motion of edge and cloth feeding direction (making direction) quadrature in the plane that is parallel to needle plate 134 (with reference to Fig. 4).
Like this; Movable cutting knife 240 be provided in through spring from the top with more weak spring pressure be pressed carry put on fixed cutting tool 230 sliding in state moving freely, so can be corresponding and mobile along the vertical direction with the height and position of the surperficial 230a of fixed cutting tool 230.
In the pressing plate 210 that constitutes like this, end edge portion a1, the a2 of two cloth KL, KR is sent under the state that butt joint is holded up in the cloth path 214 between a presser feet 213 and another presser feet 215.And; Through fixed cutting tool 230 and movable cutting knife 240, be that movable cutting knife 240 carries out sliding-contact for fixed cutting tool 230 on one side and moves on one side; The cloth KL that in the cloth of sending into, butt joint is holded up, the end edge portion a1 of KR, the top e1 of a2, e2 cut away; Make overlapping the b1 of cloth KL, KR, the length unanimity of b2 thus, deliver to the needle downing position of the front of support portion 112 then.At needle downing position,, in the width corresponding, make with the not shown sewing needle (for example 4 pins) of motion up and down with overlapping width with trimming back overlapping cloth KL, overlapping the b1 of KR, b2 up and down.
In the arm-outtake type sewing machine 100 of the pressing plate with such formation 210; Through the position of change conduct end above movable cutting knife 240 cuts off the position of cloth in fixed cutting tool 230, can regulate the cut-out height and position of the cloth that is inserted between the presser feet.
That is,, in arm-outtake type sewing machine, can change off-position with pressing plate 210 through used thickness different fixed cutting knife 230.
Fig. 8 is illustrated in the cutter shown in Figure 5 200 to replace fixed cutting tool 230 and the figure with the pressing plate 210 of the fixed cutting tool 330 of fixed cutting tool 230 different-thickness has been installed.
As shown in Figure 8, in pressing plate 210, the fixed cutting tool corresponding with the height of sewing position 330 is installed on a presser feet 213.
When this fixed cutting tool 330 is installed, at first, in cutter shown in Figure 5 200, fixed cutting tool bracket screw 254 is unscrewed, the pressed state of fixed cutting tool support 252 formed fixed cutting tools 230 is removed.Thus, fixed cutting tool 230 is disengaged for carrying the pressed state of putting face 261, can be from fenestra 260 plugs.
Then, fixed cutting tool 230 and the fixed cutting tool 330 (with reference to Fig. 8) that for example has the thickness bigger than fixed cutting tool 230 are changed, be engaged in the fixed cutting tool holding section 264.
Then, as shown in Figure 8, Yi Bian another side 333 butts of the bigger fixed cutting tool 330 of the 2nd conical surface 256 that makes fixed cutting tool support 252 and thickness, Yi Bian configuring fixed cutter supporter 252.Then, be tightened in to carry via fixed cutting tool support 252 and put among the 268a of box thread portion of face 261 insert connecting fixed cutting tool bracket screw 254 in screw 267.Thus, fixed cutting tool support 252 is pushed downwards through the other side 333 of the 2nd conical surface 256 fixed cutting tool 330 that thickness is bigger.One sidepiece 332 of the fixed cutting tool 330 that at this moment, thickness is bigger slides on the 1st conical surface 262 of a presser feet 213 smoothly.Thus, the bigger fixed cutting tool of thickness 330 self is only through tightening fixed cutting tool bracket screw 254, is pressed to be fixed on to carry with regard to moving downwards and puts on the face 261.
Through so preparing thickness different fixed cutting knife 230,330, fixed cutting tool bracket screw 254 is unscrewed changed the fixed cutting tool that is fixed on the pressing plate 210, can freely change off-position, be cutting knife engagement height.Can be through off-position, be the overlapping width of cloth, make seam wide, be that the pin of two outboard ends of 4 pins is consistent with the end limit of overlapping cloth respectively here, and obtain the portion of making as shown in the figure.
The cloth that uses 330 cut-outs of the bigger fixed cutting tool of this thickness after changing is shown in Fig. 9 B; Compare with the situation shown in Fig. 9 A that fixed cutting tool through the fixed cutting tool 330 thin length H2 bigger than thickness cuts off, can make the length of holding up part b1, b2 increase the amount of length H2.
Figure 10 is that the sketch map of state is made in expression, expression with cloth KL, KR overlapping after, utilize 4 not shown sewing needles needlework S1, with not shown on stretch tight that mechanism's interlock makes on stretch tight line S2 and not shown looper thread S3 carried out the state made.
Through cut off top e1, the e2 of the end edge portion of cloth KL, KR in the position of Fig. 9 B; Shown in Figure 10 B; The cloth that can guarantee the width corresponding with seam width d1 is overlapping, shown in Figure 11 B, can carry out the seam width d1 outward appearance consistent with the overlapping width of cloth and better make.Promptly; On the surface that spreads all over the upward overlapping cloth KL of Rack (being equivalent to width d1 here), KL from each ora terminalis; In being equivalent to the scope of overlapping width, arrange the suture that forms by 4 sewing needles needlework S1 separately, and be formed with the seam mark that the line S2 that stretches tight twines regularly on these sutures.In addition, Figure 10 A, Figure 11 A be illustrated respectively in the state that the off-position shown in Fig. 9 A cuts off and make sketch map, make the vertical view of part.
In addition; In the replacing of the fixed cutting tool of this embodiment; The fixed cutting tool 330 that thickness is bigger needs only through being inserted into along just being engaged in the fixed cutting tool holding section 254 in the fenestra 260 of left and right directions opening; And, can tighten fixed cutting tool bracket screw 254 from the top of pressing plate 210 via screw 267, thereby fixed cutting tool 330 is fixed on the presser feet 213.
Therefore; Will pressing plate 210 do not take off from the needle plate 134 of arm-outtake type sewing machine 100; But under the state that is installed on this arm-outtake type sewing machine 100; Just can with fixed cutting tool, according to circumstances also with the different persons' replacings of movable cutting knife 240, change off-position according to the material or the operation of cloth with thickness.Through this change, regulate width as the lap of the cloth of making object.
In addition; Fixed cutting tool 230, the fixed cutting tool 330 that thickness is bigger pass through fixed cutting tool holding section 264 and fixed cutting tool holding member 250; It is fixing (in detail, to be a sidepiece 232 and the other side 233 of fixed cutting tool 230, a sidepiece 332 and the other side 333 of fixed cutting tool that thickness is bigger) in the both sides of launching the taper that shape tilts with the bottom.Therefore, even with the arm-outtake type sewing machine of 4200 rev/mins high-speed driving, in the pressing plate 210 on being disposed at needle plate 134, fixed cutting tool 330 can not break away from yet.Thus, can make the end that is cut off overlapping two clothes up and down in back consistent, can form the seam mark that durability is good, outward appearance is also attractive in appearance with the needle falling point in the seam stitch width direction outside.
So, according to this embodiment, all users' of the character (whether being the cloth of flexible) of the kind of corresponding goods (whether being the goods that need intensity), goods, product requirements (whether requiring outward appearance) etc. demand simple and reliablely.
That is, according to demand, as long as change fixed cutting tool through unscrewing fixed cutting tool bracket screw 254, it is overlapping just can to increase and decrease the cloth of sewing it up, and can tackle with adjusting to changed conditions.For example, through fixed cutting tool is changed to the fixed cutting tool of 1.5mm from thickness 1mm, can make off-position increase the amount of 0.5mm.
More than, the embodiment of the utility model has been described.
Cutter that the utility model relates to and the cylindrical sewing machine that possesses it are not limited to above-mentioned embodiment, can carry out various changes and implement.
The disclosure of specification, accompanying drawing and the specification digest that in No. 201120113668.9 the Chinese utility model application of submitting on April 18th, 2011, comprises is fully incorporated in the application.
Industrial applicibility
Cutter that the utility model relates to and cylindrical sewing machine have durability good, when making, can increase the lap of cloth and easily increase the effect of the amount of making of cloth and sewing needle, have practicality as the cutter that in arm-outtake type sewing machine, uses.
Claims (8)
1. cutter possesses: pressing plate, and use from the main body of pushing that is configured on the needle plate and extend two presser feets of setting respectively to the both sides of needle downing position, press the cloth on the eedle presser from the top; Tabular fixed cutting tool, dismounting are installed on the presser feet freely; And movable cutting knife, remain on another presser feet, while on the said fixing cutting knife, slide, move back and forth; And, utilize the above-mentioned movable cutting knife of said fixing cutting knife and slip, cut off to be inserted into the end edge portion of the cloth between above-mentioned two presser feets at the state of erectting on the above-mentioned needle plate, wherein,
An above-mentioned presser feet possesses the fixed cutting tool holding section, and this fixed cutting tool holding section has: carry the face of putting, carry and put the said fixing cutting knife; And the 1st conical surface, and put face in above-mentioned year and acutangulate, and with a sidepiece butt of putting the said fixing cutting knife on the face in above-mentioned year;
Clipping said fixing cutting knife and above-mentioned the 1st conical surface opposed position; Move along the vertical direction and be provided with the fixed cutting tool holding member freely, this fixed cutting tool holding member possess to the direction that is inclined to symmetry with above-mentioned the 1st conical surface tilt and with the 2nd conical surface of the other side butt of said fixing cutting knife;
Put on the face at above-mentioned year, through using said fixing cutting knife holding member the other side of the said fixing cutting knife of an above-mentioned sidepiece and above-mentioned the 1st conical surface butt is pushed downwards, thereby keep fixed cutting tool with above-mentioned the 2nd conical surface.
2. cutter as claimed in claim 1, wherein,
The fixed cutting tool holding member comprises: the fixed cutting tool support possesses above-mentioned the 2nd conical surface with the other side butt of said fixing cutting knife; And the fixed cutting tool bracket screw, screw thread is attached to the above-mentioned presser feet and tightens through connecting the said fixing cutter supporter from the top, and the said fixing cutter supporter is pushed downwards.
3. according to claim 1 or claim 2 cutter, wherein,
Above-mentioned the 1st conical surface and above-mentioned the 2nd conical surface are to clip the said fixing cutting knife and the tapering of symmetry;
One sidepiece of said fixing cutting knife and the other side are to put the face direction accordingly towards above-mentioned year with above-mentioned the 1st conical surface and above-mentioned the 2nd conical surface to launch the taper side that shape forms with the bottom.
4. cutter as claimed in claim 2, wherein,
The utilization of said fixing cutter supporter screw is pushed the said fixing cutter supporter downwards through the screw head that rotates this screw and descend.
5. cutter as claimed in claim 2, wherein,
An above-mentioned presser feet has fenestra, and the direction quadrature ground that stretches out of this fenestra and an above-mentioned presser feet connects and forms along level, while insert the fixed cutting tool and the reciprocating movable cutting knife that on fixed cutting tool, slides;
Inboard at above-mentioned fenestra is provided with: the face and the 1st conical surface are put in above-mentioned year of said fixing cutting knife holding section; Be connected above-mentioned the 1st conical surface the upper end and with put the opposed end face of face in above-mentioned year; And above-mentioned the 2nd conical surface of above-mentioned cutter supporter.
6. according to claim 1 or claim 2 cutter, wherein,
An above-mentioned presser feet has fenestra, and the direction quadrature ground that stretches out of this fenestra and an above-mentioned presser feet connects and forms along level, while insert the fixed cutting tool and the reciprocating movable cutting knife that on fixed cutting tool, slides;
Putting face in above-mentioned year is the protuberance that forms in the bottom of above-mentioned fenestra.
7. cutter as claimed in claim 2, wherein,
In the bottom of fixed cutting tool support, be provided with screw position and separate and outstanding downwards foot.
8. Sewing machines through two clothes are sent to the needle downing position of Sewing machines support portion after superimposed up and down from separately ora terminalis with specific length, is sewed up each other, wherein,
Possesses the described cutter of claim 1;
At above-mentioned cutter and be configured in the above-mentioned cloth of clamping between the needle plate of upper surface of above-mentioned Sewing machines support portion, above-mentioned two clothes are cut to specific length from separately ora terminalis, deliver to above-mentioned needle downing position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200773256U CN202509236U (en) | 2011-04-18 | 2012-03-02 | Cutting knife device and cylindrical sewing machine with same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120113668.9 | 2011-04-18 | ||
| CN201120113668 | 2011-04-18 | ||
| CN2012200773256U CN202509236U (en) | 2011-04-18 | 2012-03-02 | Cutting knife device and cylindrical sewing machine with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202509236U true CN202509236U (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200773256U Expired - Lifetime CN202509236U (en) | 2011-04-18 | 2012-03-02 | Cutting knife device and cylindrical sewing machine with same |
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| Country | Link |
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| CN (1) | CN202509236U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105420938A (en) * | 2015-12-29 | 2016-03-23 | 杰克缝纫机股份有限公司 | Bird nest removing quick blade replacing blade-attached presser foot for sewing machine |
-
2012
- 2012-03-02 CN CN2012200773256U patent/CN202509236U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105420938A (en) * | 2015-12-29 | 2016-03-23 | 杰克缝纫机股份有限公司 | Bird nest removing quick blade replacing blade-attached presser foot for sewing machine |
| CN105420938B (en) * | 2015-12-29 | 2019-02-22 | 杰克缝纫机股份有限公司 | A kind of sewing machine removes Bird's Nest rapid changing knife band knife presser feet |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121031 |