CN1042155C - Full rotating shuttle and sewing method - Google Patents

Full rotating shuttle and sewing method Download PDF

Info

Publication number
CN1042155C
CN1042155C CN94120472A CN94120472A CN1042155C CN 1042155 C CN1042155 C CN 1042155C CN 94120472 A CN94120472 A CN 94120472A CN 94120472 A CN94120472 A CN 94120472A CN 1042155 C CN1042155 C CN 1042155C
Authority
CN
China
Prior art keywords
shuttle
peg
bobbin case
spindle
guide rail
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN94120472A
Other languages
Chinese (zh)
Other versions
CN1124794A (en
Inventor
中村洁
广濑德三
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hirose Manufacturing Co Ltd
Original Assignee
Hirose Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP6026985A external-priority patent/JPH07231992A/en
Priority claimed from JP6246592A external-priority patent/JP3014021B2/en
Application filed by Hirose Manufacturing Co Ltd filed Critical Hirose Manufacturing Co Ltd
Publication of CN1124794A publication Critical patent/CN1124794A/en
Application granted granted Critical
Publication of CN1042155C publication Critical patent/CN1042155C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B57/00—Loop takers, e.g. loopers
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B57/00—Loop takers, e.g. loopers
    • D05B57/08—Loop takers, e.g. loopers for lock-stitch sewing machines
    • D05B57/10—Shuttles
    • D05B57/16—Shuttles with bobbin casings guided in tracks
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B57/00—Loop takers, e.g. loopers
    • D05B57/08—Loop takers, e.g. loopers for lock-stitch sewing machines
    • D05B57/10—Shuttles

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Detergent Compositions (AREA)

Abstract

In rotary hook assemblies (101) and oscillating shuttle hook assemblies (321), a bearing rib (108,325) on a bobbin case basket (106, 311) or at least its surface layer (217, 324) is composed of a synthetic resin such as a liquid crystal polymer, which has such properties that the amount of the rotating frictional force of the slide contact portion, between the surface layer (217, 324) of the bearing rib (108, 325) and the inside circumference layer (326) of the groove shaped bearing raceway (128, 322) where the bearing rib (108, 325) is fitted, is lower in cases without industrial sewing machine oil than in other cases with the industrial sewing machine oil. By this construction, the hook assembly (101, 321) which has the good durability of the rotating portion without any hook lubrication is realized. Accordingly, the oil stains of threads and sewing materials by hook lubricant is disappeared and the sewing quality enhances.

Description

Rotation rib of Sewing machines
The present invention relates to the peg or spindle and the bobbin case of the full rotating shuttles that machine had such as sewing machine for covering chain stitch.
The peg or spindle that sewing machine for covering chain stitch etc. had, be split into guide rail on its outer peripheral face, this guide rail is embedded in the guide groove that forms on the inner peripheral surface of bobbin case, this peg or spindle is to be in by the peg or spindle spline member that is fixed on the Sewing machines fuselage to stop its state to the rotation of bobbin case direction of rotation downstream side, and just bobbin case is by rotation driving at a high speed.Especially the bobbin case of industrial sewing machines is to drive with the high-speed rotation about 6000-10000rpm.Sliding-contact meeting by guide rail and guide groove produces bigger frictional force like this, makes the bobbin case rotation just need big torque.When the friction between guide rail and guide groove is big, because should end the inner face that ends the shuttle recess of shuttle member embedding peg or spindle contacts with big power with the shuttle part that ends that stops the peg or spindle rotation, thereby can not carry out the line of taking out of upper thread sleekly, the tension variation of upper thread is undesirable thus, can occur making sewing quality to reduce, simultaneously, the problem that reduces durability because of guide rail and guide groove friction is arranged.
Be head it off, known solutions has the structure of supplying lubricating oil between the superficial layer of the guide rail outer peripheral face of peg or spindle and bobbin case guide groove inner peripheral surface, but upper thread is arranged, the possibility that lubricated oil such as bottom line and cloth are made dirty.
Therefore, the past also has the fluororesin that has low-friction coefficient in the coating of peg or spindle rail sections; For example be coated with the structure of teflon etc.
With above-mentioned prior art, under the situation of coating fluororesin etc., their pressurizations are burnt till, and when its thickness was the common 10-20 μ m left and right sides, because too thin, durability was low, particularly not under the oil condition, has the problem that comes off easily.
In addition, in order to prevent that Sewing machines is when running up, the slipper of peg or spindle and bobbin case generates heat because of friction and takes place deadlocked and make a noise etc., Japanese Utility Model discloses 1985 No. 64777 and discloses a kind of full rotating shuttle, the sliding friction of this shuttle partly use coefficient of friction little, have a rotary steering guide rail that ABRASION RESISTANCE and stable on heating synthetic resin are made, the guide rail that uses this resin to make, when Sewing machines turns round, can reduce the sliding friction between guide rail and guide groove to a certain extent, it is deadlocked to prevent to generate heat between the two.This utility model has only specifically proposed a kind of resin, i.e. thermosetting polyimide resin; To the desired performance of resin, also only be " coefficient of friction little, have ABRASION RESISTANCE and heat resistance ".And the performance of this thermosetting polyimide resin is under the situation of fuel feeding not, also is difficult to adapt to the demand of the industrial sewing machines of 6000-10000rpm rotating speed.
As mentioned above, according to industry technical staff's general general knowledge, for the shuttle of the Sewing machines of rotation at a high speed, if use industrial sewing machines oil, bobbin case is rotation easily just, makes little that the essential torque of bobbin case rotation just can be when not adding sewing machine oil; And if do not supply with sewing machine oil, the frictional resistance during rotation will increase, and makes the essential torque of bobbin case rotation bigger just must be than the supply sewing machine oil time, just generates heat because of friction easily even takes place deadlocked.Therefore, especially, it is generally acknowledged for the industrial sewing machines of rotating speed about up to 6000-10000rpm, must be to the slipper supplying lubricating oil of its shuttle.
The object of the present invention is to provide a kind ofly the friction of the slipper of peg or spindle and bobbin case to be diminished as far as possible not under the oil condition, can be slick and sly and also stably at a high speed rotation drive the peg or spindle and the bobbin case of the full rotating shuttle of bobbin case.
The invention provides a kind of peg or spindle of full rotating shuttle of Sewing machines, it is characterized in that, the guide rail surface layer of the peg or spindle at least in the full rotating shuttle is to be made of aromatic polyimide resin, and this aromatic polyimide resin is that the torque when making rotation when industrial sewing machines oil is arranged between the inner peripheral surface of guide rail surface layer and bobbin case guide groove drive the needed torque ratio of bobbin case not add this industrial sewing machines oil is also big.
The invention provides a kind of peg or spindle of full rotating shuttle of Sewing machines, it is characterized in that, the guide rail surface layer of the peg or spindle at least in the full rotating shuttle is to be made of liquid crystal polymer, and the torque when this liquid crystal polymer makes the rotation when industrial sewing machines oil is arranged between the inner peripheral surface of guide rail surface layer and bobbin case guide groove drive this industrial sewing machines oil of the needed torque ratio of bobbin case is also big.
The invention provides a kind of bobbin case of full rotating shuttle of Sewing machines, it is characterized in that, at least the interior surface layers of the bobbin case guide groove of full rotating shuttle is made of aromatic polyimide resin, and this aromatic polyimide resin is that the torque when making rotation when industrial sewing machines oil is arranged between the surface of guide groove interior surface layers and peg or spindle guide rail drive the needed torque ratio of bobbin case not have industrial sewing machines oil is also big.
In addition, the invention provides the bobbin case of the full rotating shuttle of another Sewing machines, it is characterized in that, at least the interior surface layers of the bobbin case guide groove of full rotating shuttle is made of liquid crystal polymer, and this liquid crystal polymer is that the torque when making rotation when industrial sewing machines oil is arranged between the surface of guide groove interior surface layers and peg or spindle guide rail drive the needed torque ratio of bobbin case not have industrial sewing machines oil is also big.
The invention provides a kind of full rotating shuttle, it is under the state that guide rail at peg or spindle is embedded in the guide groove of bobbin case and the rotation of peg or spindle is prevented from, bobbin case is driven in rotation around its rotation, it is characterized in that the above-mentioned bobbin case side face that included forms reeded bobbin case body and is fixed in the bobbin case body recess and has the sliding component of above-mentioned guide groove; Above-mentioned sliding component is made of aromatic polyimide resin, and this aromatic polyimide resin is that the torque when making rotation when industrial sewing machines oil is arranged between the surface of guide groove interior surface layers and peg or spindle guide rail drive the needed torque ratio of bobbin case not have industrial sewing machines oil is also big.
The invention provides another full rotating shuttle, it is under the state that guide rail at peg or spindle is embedded in the guide groove of bobbin case and the rotation of peg or spindle is prevented from, bobbin case is driven in rotation around its rotation, it is characterized in that the above-mentioned bobbin case side face that included forms reeded bobbin case body and is fixed in the bobbin case body recess and has the sliding component of above-mentioned guide groove; Above-mentioned sliding component is made of liquid crystal polymer, and this liquid crystal polymer is that the torque when making rotation when industrial sewing machines oil is arranged between the surface of guide groove interior surface layers and peg or spindle guide rail drive the needed torque of bobbin case not have industrial sewing machines oil is also big.
The invention provides a kind of shuttle that partly rotates shuttle, it is characterized in that, the superficial layer that partly rotates the guide rail of the shuttle at least in the shuttle is made of by resin aromatic series polyamides Asia, and this aromatic polyimide resin is that the torque that makes rotation when between the inner peripheral surface of guide groove of the superficial layer of guide rail and shuttle race industrial sewing machines oil being arranged drive the needed torque of bobbin case meeting when not have industrial sewing machines oily is also big.
The invention provides a kind of shuttle that partly rotates shuttle, it is characterized in that, the superficial layer that partly rotates the guide rail of the shuttle at least in the shuttle is made of liquid crystal polymer, and this liquid crystal polymer is that the torque that makes rotation when between the inner peripheral surface of guide groove of the superficial layer of guide rail and shuttle race industrial sewing machines oil being arranged drive the needed torque of bobbin case meeting when not have industrial sewing machines oily is also big.
The invention provides a kind of shuttle race that partly rotates shuttle, it is characterized in that, the inner peripheral surface that partly rotates the guide groove of the shuttle race at least in the shuttle is made of aromatic polyimide resin, and this aromatic polyimide resin is that the torque that makes rotation when industrial sewing machines oil is arranged between the guide rail surface layer of guide groove inner peripheral surface and shuttle drive the needed torque of bobbin case meeting when not have industrial sewing machines oily is also big.
The invention provides a kind of shuttle race that partly rotates shuttle, it is characterized in that, the inner peripheral surface that partly rotates the guide groove of the shuttle race at least in the shuttle is made of liquid crystal polymer, and this liquid crystal polymer is that the torque that makes rotation when industrial sewing machines oil is arranged between the guide rail surface layer of guide groove inner peripheral surface and shuttle drive the needed torque of bobbin case meeting when not have industrial sewing machines oily is also big.
The invention provides a kind of shuttle of Sewing machines, it comprises the spool that the bottom line of reeling is housed, and form at peripheral part circumferential extension guide rail peg or spindle case circle and, surround the bobbin case geosphere, catch upper thread, be rotated or swing, and in interior perimembranous, along circumferentially extending to form the guide groove that is embedded into guide rail, to keep the shuttle race circle of shuttle case, it is characterized in that the superficial layer of guide rail at least or either party of inner peripheral surface layer of guide groove at least, be made of aromatic polyimide resin, this aromatic polyimide resin is that the torque that makes the rotation that industrial sewing machines when oil arranged between these superficial layers and the inner peripheral surface layer drive the needed torque of bobbin case meeting when not have industrial sewing machines oily is also big.
The invention provides a kind of shuttle of Sewing machines, it comprises the spool that the bottom line of reeling is housed, and form at peripheral part circumferential extension guide rail peg or spindle case circle and, surround the bobbin case geosphere, catch upper thread, be rotated or swing, and in interior perimembranous, along circumferentially extending to form the guide groove that is embedded into guide rail, to keep the shuttle race circle of shuttle case, it is characterized in that the superficial layer of guide rail at least or either party of inner peripheral surface layer of guide groove at least, be made of liquid crystal polymer, this liquid crystal polymer is that the torque that makes the rotation that industrial sewing machines when oil arranged between these superficial layers and the inner peripheral surface layer drive the needed torque of bobbin case meeting when not have industrial sewing machines oily is also big.
The guiding of sewing machine shuttle peg of the present invention is to be made of a kind of among liquid crystal polymer or the aromatic polyimide resin with the superficial layer at least of the guide groove of guide rail and/or bobbin case, because the also big characteristic of torque that the rotation when this liquid crystal polymer or aromatic polyimide resin have the industrial sewing machines oil that has between the inner peripheral surface that makes guide rail surface layer and guide groove as lubricating oil drives the needed torque ratio of bobbin case when not having industrial sewing machines oil, therefore, between guide rail and guide groove, needn't supply with this class industrial sewing machines wet goods lubricating oil, thereby can prevent by the stained upper thread of industrial sewing machines wet goods and bottom line and cloth of being sewed etc.
In addition, because the present invention can make the bobbin case that caused by bobbin case rotation and the frictional force between peg or spindle reduce, therefore can make the spline recess of peg or spindle and be embedded in this peg or spindle spline recess and stop the power between the peg or spindle spline member of peg or spindle rotation to diminish, like this, make the upper thread coil easily by between peg or spindle spline tang and the peg or spindle spline member, do not have big tension force to act on the upper thread coil, thereby can improve sewing quality.
Again because the present invention has used liquid crystal polymer and aromatic polyimide resin, thus less traction within the inner peripheral surface of the superficial layer that can make the guide rail that liquid crystal polymer constitutes and guide groove, and improved mar proof, so can improve the durability of peg or spindle.
According to the present invention at least the superficial layer of peg or spindle guide rail by constituting as synthetic resin such as liquid crystal polymers, because this synthetic resin has between the inner peripheral surface that makes guide rail surface layer and bobbin case guide groove, the also big characteristic of torque that has the rotation in industrial sewing machines when oil to drive the needed torque of bobbin case meeting when not have industrial sewing machines oily, thereby oil supply not, can reach and can prevent that the upper thread that caused by industrial sewing machines wet goods lubricating oil and bottom line and cloth etc. are by the stained excellent effect of leading.
Like this, oil supply not, thereby just do not consume industrial sewing machines wet goods lubricating oil, and do not need to form the structure of supplying with this class lubricating oil, but bar structure simplify, and then be convenient to maintenance.
The present invention is by using above-mentioned synthetic resin, can not under the oil condition, reduce rotation and drive the needed torque of bobbin case, therefore can reduce upper thread peg or spindle spline recess and be fixed in the spline member on the body by the time tension force, also can improve sewing quality thus.
The present invention is at the full rotating shuttle of level, vertical full rotating shuttle and partly rotate in the shuttle and can implement.
In addition, the present invention also by to the superficial layer of major general's guide rail by being constituted as liquid crystal polymer or aromatic polyimide resin synthetic resin, therefore can make the superficial layer of guide rail and the less traction between the guide groove inner peripheral surface, can improve mar proof, and can improve the durability of peg or spindle.Can also further improve the rotary speed of bobbin case.
The present invention is on the rail sections of metal peg or spindle body, partly be integrally formed into the lining member that constitutes by synthetic resin from the separated time part of rail sections to taking out line, for example carry out the outer guide rail that forms with being coated with, the phenomenon that the member that just can not be covered easily peels off from rail sections, very big intensity can be arranged make lining member and guide rail component form one, therefore, frictional force between the guide rail of peg or spindle and the guide groove of bobbin case just diminishes, can the garden sliding and stablize, the bobbin case of rotation driving at high speed.Thus, needn't be to guide rail and guide groove supplying lubricating oil, and can prevent that the line that caused by lubricating oil and cloth etc. are stained.Again owing to, metal system guide rail part is relied on bobbin case direction of rotation upstream side ground from the lining member exposes, thereby can prevent that so-called yarn road is stained with in yarn and sliding-contact above-mentioned separated time part partly.
In addition, because above-mentioned lining member forms by synthetic resin such as liquid crystal polymer or aromatic polyimide resins, thereby makes the less traction of slipper, more can improve ABRASION RESISTANCE,, thereby can improve the durability of peg or spindle again because the lining member weares and teares for a short time.
Aforesaid the present invention, because rail sections at metal shuttle braking core body, from the separated time of rail sections part to taking out the line part, be integrally formed into by plastic lining member to form guide rail, in the separated time of the part of passing through as above-mentioned needlework part, with above-mentioned metal system guide rail part, rely on bobbin case direction of rotation upstream side ground from the member that is covered and expose, thereby can improve ABRASION RESISTANCE, simultaneously being stained with of drawing lines can be prevented, also durability can be improved.
In addition,, therefore can further improve durability and ABRASION RESISTANCE, and because processing easily can improve productivity because above-mentioned lining member of the present invention is formed by synthetic resin such as liquid crystal polymer or aromatic polyimide resins.
According to the present invention, on bobbin case, form guide groove, on peg or spindle, form guide rail, this guide rail is embedded in the guide groove, and under the state that the rotation of peg or spindle is prevented from, bobbin case is driven in rotation around its rotating shaft.That part that contains guide rail at least of above-mentioned bobbin case, that is, the part of the whole or formation guide groove of bobbin case, the synthetic resin little by coefficient of friction forms.Therefore, reduce the guide rail of metal shuttle braking core and the friction between the bobbin case guide groove, wear extent is reduced.Like this, by making the vibration little, in the time of can also not producing the bobbin case rotation that causes by eccentric wear of wearing and tearing.In addition, also less because the friction between guide rail and the guide groove is little because of this fricative heat, ablation phenomen can not take place just.
In addition, the present invention is used as the above-mentioned little synthetic resin of coefficient of friction to liquid crystal polymer.
According to the present invention, bobbin case is made of bobbin case body and sliding component.This sliding component is made of the little synthetic resin of coefficient of friction, and for example available inlaying process is shaped, forms one with the bobbin case body.The guide groove of this type of sliding component is embedded in the guide rail on the peg or spindle, can reduce the wear extent between guide rail and guide groove, and can stably rotate bobbin case at a high speed.
The present invention is containing metal dust, ceramic powders or other hardness height and the coefficient of friction little synthetic resin of the synthetic resin of mar proof material powder as the formation sliding component being arranged.Can also reduce the wear extent of guide groove and guide rail by these, and can stablize and rotate bobbin case at high speed.
According to above-mentioned the present invention, that part that comprises guide rail of above-mentioned at least bobbin case, promptly bobbin case is all or constitute the part of guide groove, and the synthetic resin little by coefficient of friction forms.Therefore, can reduce the guide rail of metal shuttle braking core and the friction between the bobbin case guide groove, wear extent is reduced.By making wearing and tearing little, the vibration the when bobbin case that just can not take place to be caused by inclined to one side friction rotates.Again because the friction between guide rail and guide groove is little, thereby the rare heat that causes by friction, just ablation phenomen can not take place.
In addition, according to the present invention, bobbin case is made of bobbin case body and sliding component.This sliding component is made of the little synthetic resin of coefficient of friction, is shaped or coats shaping outward by inlaying on the bobbin case body, can form one with bobbin case.The guide groove of such sliding component is embedded in the guide rail of peg or spindle, just can reduce the wear extent between guide rail and guide groove, can stablize, rotate at high speed bobbin case.
The present invention, containing by metal dust, ceramic powders or other high rigidity and synthetic resin that the powder that wear-resisting material constitutes arranged are as the little synthetic resin of coefficient of friction that constitutes sliding component.By these, also can reduce the wear extent between guide groove and guide rail, and can stablize, rotate at high speed bobbin case.
The present invention is at least the superficial layer of peg or spindle guide rail, constitute with liquid crystal polymer, perhaps, constitute with the high density polyethylene (HDPE) that contains lubricant, therefore, the coefficient of friction between guide rail and guide groove is reduced, the rotation that can reduce bobbin case drives needed torque, thereby can make bobbin case at a high speed, stablize the garden and rotate driving slidingly, can improve sewing quality.
Especially in the present invention, the superficial layer of peg or spindle guide rail is made of liquid crystal polymer at least, thus, just needn't supply with lubricating oil between guide rail and guide groove, can reach the stained good result that can prevent the line that caused by this lubricated wet goods and cloth etc.
These purposes, characteristic and the advantage of the invention described above can more clearly be understood by following detailed description and accompanying drawing.
Fig. 1 is the oblique view of the vertical full rotating shuttle 101 of one embodiment of the present of invention.
Fig. 2 is the integrally-built sectional drawing of the above-mentioned vertical full rotating shuttle 101 of expression.
Fig. 3 is the exploded perspective view of above-mentioned vertical full rotating shuttle 101.
Fig. 4 is the plane of the peg or spindle 106 seen from Fig. 2 top.
Fig. 5 is the back view of the peg or spindle 106 seen from Fig. 2 left side.
Fig. 6 is the sectional drawing of the peg or spindle 106 of vertical full rotating shuttle 101.
Fig. 7 is the amplification profile diagram that the hatching VII-VII from Fig. 4 sees.
Fig. 8 is the sectional drawing of the portions cut of liquid crystal polymer injection moulding spare 28.
Fig. 9 is the amplification profile diagram of the peg or spindle 106 the another embodiment of the present invention seen of the hatching VII-VII from Fig. 4.
Figure 10 is the amplification profile diagram of the peg or spindle 106 another embodiment of the present invention of seeing of the hatching VII-VII from Fig. 4.
Figure 11 is the exploded perspective view of the peg or spindle 71 of another embodiment of the present invention.
Figure 12 is near the sectional drawing the embeded slot 73 of expression peg or spindle 71.
Figure 13 is the oblique view of the peg or spindle 71 of the above embodiment of the present invention.
Figure 14 is the experimental result of expression bobbin case that made by the present inventor, one embodiment of the present of invention and comparative example required torque when being rotated driving.
Figure 15 is the leaving a blank the duration of runs of gap between the guide groove inner peripheral surface of the superficial layer of expression guide rail that made by the inventor, one embodiment of the invention and comparative example and bobbin case, also promptly with the experimental result of the recruitment of the time of sewing.
Figure 16 be that expression is made by the inventor, when washing No. 50 lines of Telon and be used as upper thread and bottom line, the experimental result of the sewing quality of one embodiment of the present of invention and comparative example.
That Figure 17 represents to be made by the inventor, upper thread and bottom line be during with No. 60, polyester fine rule, the experimental result of the sewing quality of one embodiment of the present of invention and comparative example.
When Figure 18 is that expression is made by the inventor, upper thread and bottom line with No. 120, cotton thread, the experimental result of the sewing quality of one embodiment of the present of invention and comparative example.
Figure 19 is an alternative embodiment of the invention, the guide rail 108 that forms epithelium 129 and the part amplification profile diagram of guide groove 128.
Figure 20 is another embodiment of the present invention, have the guide rail 108 of sliding component 131 and near the part amplification profile diagram the guide groove 128.
Figure 21 is the front elevation of biopsy cavity marker devices of the horizontal full rotating shuttle 1 of expression one embodiment of the present of invention.
Figure 22 is the plane of horizontal full rotating shuttle 1.
Figure 23 is the back view of the peg or spindle 4 of horizontal full rotating shuttle 1.
Figure 24 is the back view of peg or spindle 34 of the horizontal full rotation of expression another embodiment of the present invention.
Figure 25 is the oblique view that partly rotates shuttle 321 of another one embodiment of the present invention.
Figure 26 is the side view of the peg or spindle that partly rotates shuttle 321 320 shown in expression Figure 25.
Below, with reference to accompanying drawing, describe most preferred embodiment of the present invention in detail.
Fig. 1 is the oblique view of the vertical full rotating shuttle 101 with horizontal axis of rotation L1 of one embodiment of the present of invention.Fig. 2 is the integrally-built sectional drawing of the full rotating shuttle 101 of this embodiment of expression, and Fig. 3 is the exploded perspective view of full rotating shuttle 101.Bobbin case 102 is fixed on the rotating shaft 104 that horizontal axis of rotation L1 drives along the rotation of arrow 103 directions, round being driven in rotation with the common axis of rotation line L1 of rotating shaft 104 by bolt 105.In such bobbin case 102, adorning peg or spindle 106.
Peg or spindle 106, has a portion 107 at (with reference to the plane of seeing from above of Fig. 4 and the back view of Fig. 5 and total sectional drawing of Fig. 6); The guide rail 108 that on the periphery of tube portion 107, forms; The flange 110 that forms at an end of the peg or spindle open sides (right side of Fig. 4) of tube portion 107 with peg or spindle spline recess 109; At tube portion 107 other ends to the shuttle door bottom that is called as bridge 111 that diametric(al) is formed extended at both sides.On shuttle door bottom 111, open the distolateral 107 axially extending column bolts 112 that erectly are being provided with towards peg or spindle with tube portion, column bolt 112 is inserted yarn passing tubes 113, and fastens peg or spindle case 114 in its top ends.Peg or spindle case 114 is that garden, end tubular is arranged, the bottom 114a that exposes from the peg or spindle open end setting operating sheet 115 with can be by the angular displacement of this operating sheet 115 to the latch sheet 116 of the direction displacement vertical with the paper of Fig. 1, the groove 117 that the top ends of this latch sheet 116 and column bolt 112 forms is fastened.By making aforesaid operations sheet 115, seeing angular displacement to the front from the right side of Figure 19, can make 116 angular displacements of latch sheet to the front vertical of Figure 19 with paper, just can remove and the shape of fastening of 117 of grooves goes.Like this, under the state of fastening of removing peg or spindle case 114 and peg or spindle 106, when the bottom line 118 on being wound on spool 113 runs out,, with peg or spindle case 114 together, from peg or spindle 106, unload, just can change the spool that is wound with new bottom line this spool 113.
The lug boss 120 of the peg or spindle spline member 119 on the fixing Sewing machines body that does not illustrate in the drawings is embedded in the peg or spindle spline recess 109 of above-mentioned flange 110, when bobbin case rotate, stop peg or spindle 106 to rotate.In tube portion 107, form needle falling hole 121, make with the synchronously reciprocating pin 122 of the spinning movement of rotating shaft 104 and bobbin case 102 with the rectangular axis L2 of rotation L1 on insert logical.Make the upper thread 123 that penetrates on the pin 122 be set at shuttle mouth 124 hook positions on the bobbin case 102 by the effect of pin 122, make line cross peg or spindle 106, form a needle tracking.Above-mentioned peg or spindle 106, spool 113, and bobbin case 114 is to be made or made by iron and steel by stainless steel.
On above-mentioned bobbin case 102, has the cylindrical portion 125 of shuttle mouth 124 being fixed with Screw (not illustrating among the figure); Form one, above-mentioned rotating shaft 104 slotting logical base portions 126 with cylindrical portion 125; On the distolateral end of the opening of cylindrical portion 125, with the fixing peg or spindle compressing tablet 127 of Screw (not illustrating among the figure).At the interior week of cylindrical portion 125, the guide groove 128 that formation embeds guide rail 108.Such bobbin case 102 all can promptly be formed by liquid crystal polymer by the little synthetic resin of coefficient of friction, also can be steely.
Fig. 6 is the sectional drawing of peg or spindle 106 of the vertical full rotating shuttle of the above embodiment of the present invention.Peg or spindle 106 has the cylindrical portion 107 that forms guide rail 108 on its periphery; At an end of the axis direction of cylindrical portion 107, with the guide rail bridge 111 that direction is formed by connecting that meets at right angles; On bridge 111, towards the column bolt 112 of the distolateral upright setting of opening of peg or spindle 106.On the distolateral end of the opening of peg or spindle 106, form the flange 110 that extends outwardly along radial direction.Above-mentioned guide rail 108 is made of rail sections 216 and lining member 217.
In the above-described embodiments, lining member 217 does not form in separated time portion 18, but in other embodiments of the invention, also can cover separated time portion ground to such lining member 217 and form, in another embodiment, can also not only partly cover separated time, and off-line portion mulched ground is constituted.
Peg or spindle body and guide rail 216 except with the iron and steel manufacturing, also can be used other materials, for example with metals such as stainless steel, synthetic resin and inorganic material, for example make with pottery etc.
The peg or spindle 106 of the vertical full rotating shuttle shown in Fig. 1-6 and bobbin case 102, combination constitutes vertical full rotating shuttle 101 as illustrated in fig. 18.In the spline projection 120 that embeds the peg or spindle spline member 119 on the body that is fixed on the sewing machine for covering chain stitch device on the peg or spindle spline recess 110 lentamente, and thus, when bobbin case 102 rotates driving at a high speed by arrow 103 directions, can stop peg or spindle 106 to rotate.Fixing the rotating shaft 104 of horizontal axis on the bobbin case 102, this rotating shaft 104 is driven by drive sources such as motors.
Fig. 7 is the amplification profile diagram that the hatching VII-VII along Fig. 4 sees.The peg or spindle body 204a of peg or spindle 106 and rail sections 216 all are that iron and steel is made, on the outer surface 216a of above-mentioned rail sections 216, the lining member 217 that is made of liquid crystal polymer is integrally formed into the selected thickness t of 0.3-0.5mm, for example, forms with epiboly.Because lining member 217 is made and is had enough like this thickness, thereby can improve durability, and, because the part of lining member 217 at this moment is entrenched in the groove 220 that forms on the rail sections 216, thereby can also prevent to come off.
Describe the liquid crystal polymer of using in the above-mentioned lining member 217 below in detail.The above-mentioned liquid crystal polymer that on high polymer main chain, has bar-shaped rigidity straight chain composition, because the molecular separating force between the rigidity straight chain composition is big, and crystallographic orientation well when being shaped, thereby its heat resistance is very good, even temperature is uprised by rotating the rubbing action of the bobbin case 102 that drives at a high speed, because its heat distortion temperature is high, thereby can not be out of shape.In addition, because above-mentioned liquid crystal polymer is made of rigidity straight chain molecule chain, when being shaped, the streamwise high orientation, thereby it is high strength, the high elasticity rate, and since strand with state that orientation direction extends relevantly under orientation, even thereby have the tensile force of adding, also can be stretched to the creep properties of the above excellence of above-mentioned state hardly.In addition, linear expansion coefficient is very little, and particularly the linear expansion coefficient of flow direction is 1 * 10 -5About cm/cm/ ℃.Such linear expansion coefficient just can access the DIMENSIONAL STABILITY that equates with metal than other low 1 magnitude of synthetic resin.Thus, the change in size that is caused by the ambient temperature differences and the psychrometric difference in summer to winter is almost nil.Also high owing to the liquid crystal polymer weather fastness again, thereby can use for a long time.In addition, because the structural similarity the when molten condition of liquid crystal polymer and solid state, thereby phase transformation is very little, the Volume Changes during curing is also few.
In addition, the absorbing characteristic of above-mentioned liquid crystal polymer is the characteristic of damped vibration.Generally, the characteristic of damped vibration is the better of flexible material as rubber, and the face liquid crystal polymer not only has the high elasticity rate but also has the characteristic of big damped vibration concurrently.In order to improve mar proof, make the specific wear quantitative change of above-mentioned liquid crystal polymer little, and, little for making the coefficient of kinetic friction, also can mix 30% carbon fiber.In addition, above-mentioned liquid crystal polymer is made of the copolymer of P-hydroxybenzoic acid and 2-hydroxyl-6 naphthoic acid.In addition, can also be to become the naphthyl more than 3 kinds to constitute as a kind of constituent of main chain combination and the copolymer of other constituent with 2 kinds.Above-mentioned naphthyl is to be selected from 1,2,1,4, and 1,5,1,8,2,3,2,6, have functional group's compound on 2 above the position of substitution in 2,7, the functional group is so long as can form functional group all passable of polyester and/or polyesteramide.That is to say that the functional group is selected for use by hydroxyl, carboxyl, amino, ester group etc.
In addition, above-mentioned naphthyl also can be hydroxynaphthoic acid, dihydroxy naphthlene and/or naphthyl dicarboxylic acids.
Constituent beyond the naphthyl is a contraposition phenyl, 4,4 '-xenyl and/or by the general formula of Chemical formula 1, promptly
Figure C9412047200191
(wherein X be selected from alkylidene (carbon number 1-4) alkylidene (carbon number 1-4) ,-O-,-S-,-SO-,-SO 2-,-base of CO-, R, R 1Being hydroxyl, carboxyl isoreactivity base or their ester) compound and their substitutive derivative of expression form.In addition, the bonding unit of polymerization is ester and/or esteramides preferably, the functional group who forms these is selected from hydroxyl, carboxyl, amino, ester group etc., be selected from terephthalic acid (TPA), quinhydrones, P-diacetyl phenylene, P-hydroxybenzoic acid and their ester class and be preferably, 4-4 '-dihydroxybiphenyl, 4,4 '-dicarboxylate biphenyl, 4-hydroxyl-4 '-carboxyl biphenyl and their ester class, the X in the general formula of Chemical formula 1 can be selected from methylene, propenyl or conduct-SO 2-various dihydroxy matrixes, the dicarboxyl matrix, hydroxyl carboxysome and their ester class in addition, preferably are selected from terephthalic acid (TPA), hydroxybenzoic acid, 4,4 '-dihydroxybiphenyl, 4,4 '-dicarboxylate biphenyl and ester class thereof.
Fig. 8 is the sectional drawing of partly cut-away of the liquid crystal polymer injection moulding goods 28 of lining member 217.Above-mentioned liquid crystal polymer contain flow direction, its strand directed to heavens outside epidermal area 29 and, inboard epidermal area 30 Hes, directed unconspicuous sandwich layer 31.No matter the thickness of molded article how, the thickness of above-mentioned epidermal area 29,30 is the certain thickness of 0.3-0.2mm.Above-mentioned liquid crystal polymer by heating by prestigeization and being pressed in the closed mould, through cooling, is solidified die sinking afterwards and is taken out.Like this,, liquid crystal polymer just can make the lining member because being carried out die forming, thereby handling ease, can improve productivity.
Above-mentioned liquid crystal polymer because each epidermal area 29,30 carries out very strong orientation at flow direction, thereby has excellent mechanical property such as high strength, high elasticity rate.But, because easily directed, also just be easy to generate anisotropy, thereby add reinforcing agent for reducing anisotropy, being preferably on the rigidity straight chain skeleton.In addition, since directed easily, be easy to generate the fibrillation that strips down by each epidermal area 29,30.Thick fibrillation 32 is 5 μ m, and fibrillation 33 is 0.5 μ m, and fine fibrillation 27 is 0.05 μ m.Above-mentioned liquid crystal polymer has outside epidermal area 29, inboard epidermal area 30, sandwich layer 31 sandwich constructions such as grade, though have the high elasticity rate, but big damped vibration characteristic is shown.
Use has the peg or spindle 106 lining member 217, that form guide rail 108 that is made of this class liquid crystal polymer, even through the sewing of rotation action at a high speed for a long time, the wearing and tearing on its guide rail 108 surfaces are minimum.And, as another embodiment, in the separated time portion 18 of yarn,, thereby just can prevent being stained with of so-called drawing lines owing to the guide rail 216 that iron and steel is made exposes from lining member 217 by part.
By using this class liquid crystal polymer, even through sewing action at a high speed for a long time, the surface abrasion of its guide rail 108 and guide groove 128 is minimum, thereby can improve durability significantly.And construction weight is alleviated, when rotating shaft 104 rotations, the end 120a of the end 109a of the recess 109 of direction of rotation 103 upstream sides of bobbin case 102 and direction of rotation 103 upstream sides of lug boss 120 relay mutually diminishes.Therefore, upper thread passes end 109a, and the tension variation in the time of between the 120a is little, can improve sewing quality.
The amplification profile diagram that Fig. 9 is another embodiment of the present invention, see from the hatching VII-VII of Fig. 4.Peg or spindle body 204a and the rail sections 236 with aperture 238 are made by iron and steel, be integrally formed on the outer surface 236a of above-mentioned rail sections 236 that to have selected thickness t be lining member 217 0.3-0.5mm, that be made of liquid crystal polymer, this moment also break-through and filling liquid crystal polymer in aperture 238.Like this, by on rail sections 236, setting aperture 238, and fill this aperture, the dislocation of the member 217 that just more can prevent to be covered with liquid crystal polymer.Other embodiment of the present invention as shown in figure 10, are that lining member 217 and the rail sections 236 of t forms guide rail 108 by thickness
Figure 11 is the oblique view of peg or spindle 71 that is used for the vertical full rotating shuttle of other embodiments of the invention.The guide rail component 74 that this peg or spindle 71 has peg or spindle body 72 basically and fixes in the embeded slot 73 that the periphery of this peg or spindle body 72 forms chimericly.The bottom 78 that peg or spindle body 72 has garden tube portion 75, the flange 77 that peg or spindle spline recess 76 is arranged that forms in the end of this cylindrical portion 75, forms in the end of this cylindrical portion 75.
Figure 12 is near the sectional drawing the embeded slot 73.In embeded slot 73, embed guide rail component 74.The mosaic process 80 that guide rail component 74 has guide rail 79 and gives prominence to inwards at its radial direction.Mosaic process 80 separates certain intervals ground, is wholely set a plurality of with guide rail 79 formation in the solid direction of circle.Guide rail 79 is embedded in the guide groove 83 of the bobbin case of narrating below 82, and bobbin case 82 at full speed rotates.
Figure 13 is the oblique view of the confined state of expression peg or spindle 71.The chimeric guide rail component 74 of fixing on peg or spindle body 72.Such peg or spindle 71 is installed in the bobbin case 82, and on this peg or spindle 71 assembling peg or spindle case, the spline projection that is fixed on the Sewing machines body is embedded in the spline recess 76 of peg or spindle 71, and when bobbin case 82 was pressed the rotation of direction shown in the arrow 86 driving, the rotation of peg or spindle 71 was stoped.The rotating shaft of bobbin case 82 has horizontal axis.So just constituted vertical full rotating shuttle.
Guide rail component 74 is by constituting as the liquid crystal polymer of synthetic resin or the synthetic material of aromatic polyimide resin, the guide rail 79 of this non junction ring-type has elastic force, the guide rail of guide rail component 74 can be pressed shown in the reference symbol 89 of Figure 11 on the cylindrical portion 75 or bottom 78 that is embedded in peg or spindle body 71 like that by this elastic force.This moment chimeric protruding 80 just in time with the embeded slot 73 of peg or spindle body 72 on the assembling recess 91 of the circumferential extension that forms flexibly chimeric, like this, guide rail 79 can be fixed on the peg or spindle body 72 with unloading, just can change when it wear and tear.Guide rail component 74 can not be unloaded with changing to be fixed on the peg or spindle body 72.Inner surface configuration and chimeric protruding 80 the external surface shape of assembling recess 91 are roughly the same, and this is chimeric protruding 80, and chimeric just as described above being fixed on assembled in the recess 91.For guide rail 79 can be fixed on the peg or spindle body 72 with unloading, can also use bonding agent.Guide rail component 74 is formed the non junction ring-type in the above-described embodiments, but in other embodiments, and what also can form only remaining guide rail 79 is roughly the C font.
The present invention, as the various embodiments described above, by the superficial layer at least of the guide rail of peg or spindle is made is liquid crystal polymer or aromatic polyimide resin, just can reach the coefficient of friction that can reduce between guide rail and guide groove, just can make the object of the invention of bobbin case rotation with little torque.By using these liquid crystal polymers or aromatic polyimide resin, can reach three following important result a, b, c, also,
(a) with little torque the bobbin case rotation is driven, torque when particularly in the guide groove of the superficial layer of guide rail and bobbin case, adding the industrial sewing machines oil as lubricating oil between week, the torque of comparing when processing industry is not with sewing machine oil is also big, in other words, promptly can under the state of oil supply not, just can reduce torque;
(b) even not under the oil condition, the recruitment of the gap surplus between the inner peripheral surface of the superficial layer of guide rail and the guide groove of bobbin case is also minimum, and wear extent is than other synthetic resin, as it is much smaller to wash Te Lun fluororesin such as (trade names), so durability is very good;
Much less when (c) phenomenon of toe-in ball when oil supply not and broken string is than oil supply, this with peg or spindle and bobbin case by steely, comparing to the shuttle of sewing under the oil condition, can improve sewing quality.
Constitute by liquid crystal polymer by the superficial layer at least that makes guide rail, just can reduce with the bobbin case guide groove between coefficient of friction, thereby just can make bobbin case rotate driving with little torque, this Figure 14 from the experimental result of representing the inventor can know and see.
The line L1 of Figure 14, L2 are that expression uses in the structure of Figure 11 in illustrations-shown in Figure 13, bobbin case body 72 is housed is steely and with the characteristic of the Sewing machine shuttle period of the day from 11 p.m. to 1 a.m of the guide rail component 74 of the fluororesin formation of washing Te Lun (trade name).
Table 1
Figure 14 The superficial layer of guide rail Oil supply
L1 L2 L3 L4 L5 Fluororesin fluororesin liquid crystal polymer liquid crystal polymer iron and steel Not having has
Rotary speed at bobbin case 82 is in the industrial sewing machines of 4000-7000rpm, and under the condition of running up, and oil supply ground does not use fluororesin, and this point like that, is impossible shown in line L1.Use fluororesin under the industrial sewing machines oil condition, then such shown in line L2, anxious the subtracting of torque that the rotation of bobbin case 82 is driven caused upper thread and bottom line but can produce by industrial sewing machines oil when using this industrial sewing machines oil, and the big problem damaged of the pollution of cloth.
Use peg or spindle and the Sewing machines of bobbin case by the vertical full rotating shuttle in steely past, such shown in the line L5 of Figure 14, even sewing under the state of industrial sewing machines oil, the active force to peg or spindle 71 that is formed by bobbin case 82 rotations becomes big, like this, because peg or spindle spline recess 109 and and the power of 120 of its spline projections of joining become big, the tensile stress of upper thread during by this recess 109 and protruding 120 joining parts becomes big, thereby sewing quality is reduced.
In the vertical full rotating shuttle of the present invention, peg or spindle body 72 is steely, and guide rail component 74 is made of liquid crystal polymer, shown in line L3, with the structure of oil supply not, even during the high-speed rotation in industrial sewing machines, bobbin case 82 rotations drive needed torque, also than oil supply, little, even and compare, also be quite little with vertical full rotation peg or spindle with past characteristic, oil supply shown in the line L5 that makes with iron and steel with the line L2 of the peg or spindle of fluororesin.
Have in the above-mentioned vertical full rotating shuttle of the guide rail component that such liquid crystal polymer constitutes, when between the inner peripheral surface of the superficial layer of guide rail and bobbin case guide groove, adding industrial sewing machines oil, can confirm, shown in line L4, make the bobbin case rotation drive needed torque and increase.Therefore, in the present invention, this point is important, the superficial layer at least that is about to guide rail with liquid crystal polymer such, have when adding industrial sewing machines wet goods lubricant, it is big that bobbin case 82 rotations drive needed torque, and the sort of synthetic resin of the little characteristic of the torque of processing industry when the sewing machine oil constitutes, and can also understand this point, promptly by oil supply not torque is fully reduced.
Constitute with liquid crystal polymer by superficial layer at least guide rail, can make the gap surplus between the inner peripheral surface of guide groove of the superficial layer of guide rail component 74 and bobbin case roughly keep certain, and make wearing and tearing minimum, this point can obviously be found out from Figure 15 of expression inventor experimental result.
Table 2
Figure 15 Gap surplus direction The guide rail surface layer Oil supply
L11 L12 L13 L14 L15 Diameter of axle diameter of axle axle and footpath Fluororesin fluororesin liquid crystal polymer liquid crystal polymer iron and steel Do not have
In Figure 15, bobbin case 82 is that iron and steel is made, and the peg or spindle body made from iron and steel 72.Line L13, L14 are the structures with fixing guide rail component 74 that constitutes with liquid crystal polymer.In Figure 15, the rotary speed of bobbin case 82 is 6500rpm.With line L11, the L12 of the guide rail component of fluororesin system, in that its gap surplus is anxious not to be increased to just making under the oil condition, in than the short period, thereby be unsuitable for doing vertical full rotating shuttle and use.Expression will be led line L13, the L14 of the characteristic when changeing member 74 usefulness liquid crystal polymers formation, even make Sewing machines for a long time in sewing operation, the recruitment of its gap surplus is also very little, and it is stable, this characteristic is similar to steely shuttle shown in the line L15, the past, i.e. shuttle, the characteristic when oil supply all made with iron and steel of bobbin case and peg or spindle.But steely shuttle can not be used for rotation at a high speed under the oil supply situation, the present invention by as line L13, L14, use the peg or spindle that forms the guide rail component superficial layer by liquid crystal polymer at least, even not under the oil condition, also can make the recruitment of gap surplus very little, and can stablize for a long time, therefore noise can be reduced, and good sewing performance can be kept for a long time.
In addition, the present invention is the peg or spindle of the guide rail component 74 that constitutes with liquid crystal polymer by using superficial layer at least, just can as the number of times that produces of the defect of Figure 16 of expression inventor experimental result-reduce yarn knotting and broken string shown in Figure 180ly, improve sewing quality.
Table 3
Figure The superficial layer of guide rail Oil supply Face, bottom line
Figure 15 (1) Liquid crystal polymer No Wash No. 50, special human relations
(2) Liquid crystal polymer Have
(3) Iron and steel Have
Figure 16 (1) Liquid crystal polymer No No. 60, polyester staple fiber
(2) Liquid crystal polymer Have
(3) Iron and steel Have
Figure 17 (1) Liquid crystal polymer No No. 120, cotton thread
(2) Liquid crystal polymer Have
(3) Iron and steel Have
Especially use the structure of liquid crystal polymer,, can further improve its sewing quality by oil supply not.In Figure 16-Figure 18, the rotary speed of bobbin case 82 is 6000rpm.
In Figure 16-Figure 18, the superficial layer of guide rail is the peg or spindle structure of liquid crystal polymer, and peg or spindle body 72 is that iron and steel is made, and guide rail component 74 is that liquid crystal polymer is made.The superficial layer of guide rail is the peg or spindle that iron and steel is made, and peg or spindle all is that iron and steel is made.In these experiments, bobbin case is that iron and steel is made.In the experiment of oil supply, experimentize with industrial sewing machine oil.According to these experimental results as can be known, no matter its upper thread, the material of bottom line and the variation of yam count, the unfavorable condition frequency of yarn balling and broken string, with the peg or spindle of liquid crystal polymer the time, be lowered, especially when oil supply not, still can reduce its bad phenomenon frequency, therefore can improve sewing quality.
Hence one can see that, makes liquid crystal polymer by the superficial layer at least with guide rail, can obtain above-mentioned effect a, b, c.
Can obtain among each embodiment of Fig. 1-Figure 11 and the same experimental result of Figure 15-Figure 17, this is confirmed to be the advantage of structure of the present invention.
Replace liquid crystal polymer with aromatic polyimide resin fully, carry out and above-mentioned same experiment, obtained same good result.
An alternative embodiment of the invention also can be used synthetic resin with above-mentioned characteristic, for example liquid crystal polymer or the aromatic polyimide resin material as whole peg or spindles.So long as have the synthetic resin of above-mentioned characteristic, not only available liquid crystal polymer and aromatic polyimide, but also available other synthetic resin.
An alternative embodiment of the invention is the part that contains guide groove 128 at least of bobbin case 102 as shown in Figure 19, can be formed the film 129 with 0.1-0.3mm left and right thickness, and this film 129 forms the inner peripheral surface layer of guide groove 128.This film 129 can carry out outer the shaping to liquid crystal polymer and constitute.
Polytetrafluoroethylene (PTFE) (being called for short PTFE) as the little synthetic resin of above-mentioned coefficient of friction.Can use in another embodiment of the present invention more suitably.This PTFE is the co-polymer of tetrafluoroethylene, and good heat resistance is arranged, chemical proofing and resistance to impact, and handling ease, and also this class polytetrafluoroethylene (PTFE) price is cheap, because of face can be implemented the present invention at lower cost with respect to existing bobbin case.
Figure 20 is the guide rail 108 of another embodiment of the present invention and near the local amplification profile diagram the guide groove 128.In the present embodiment, the inner peripheral surface of bobbin case 102 forms groove 130, and fixing section in this groove 130 is the sliding component 131 of U word shape.Above-mentioned groove 130 is by the 1st end face 132 of locating, extending in the plane vertical with the rotating shaft of bobbin case 102 in the open end of cylindrical portion 107; Link squarely with the 1st end face 132 and with the straight cylinder face of the rotating shaft coaxle of bobbin case 102 in the 1st inner peripheral surface 133 that extends; The 2nd inner peripheral surface 135 that in the inwardly protruding portion 134 of peg or spindle compressing tablet 127, with above-mentioned the 1st inner peripheral surface 133, conjointly extends; In the inwardly protruding portion 134 of peg or spindle, with the 2nd inner peripheral surface, vertically link to each other and constitute with the 2nd end face 136 of above-mentioned the 1st end face 132 opposing parallel.
Sliding component 131 only is bonded on the 2nd inner peripheral surface 135 and the 2nd end face 136 by bonding agent, and not bonding with the 1st end face 132 and the 1st inner peripheral surface 133 of cylindrical portion 7.Thus, with sliding component 131 when groove unloads,, just can unload sliding component 131 together from cylindrical portion 125 by unloading peg or spindle compressing tablet 127 from cylindrical portion 125.The thickness of this sliding component 131 can be chosen to as 0.3-1.2mm.When the thickness of sliding component 131 surpasses 1.2mm, can make the peripheral part 137 that forms the 1st inner peripheral surface 133 become meticulous, too reduce intensity, thereby be easy to generate distortion.In addition, when the thickness of sliding component 131 is discontented with 0.3mm, because the service life that frictional wear forms shortening, and reduced the assimilation effect that vibrates.Therefore, the thickness of sliding component 131 is selected to 0.3-1.2mm.
This sliding component 131 is made of synthetic resin such as liquid crystal polymer or aromatic polyimide resins, this liquid crystal polymer material identical with the foregoing description 1.
By using this class synthetic resin, even for a long time, sew at high speed, the mantle friction loss of guide rail 108 and guide groove 128 is also still minimum to improve durability significantly.And torque in light weight, rotating shaft 104 is little, can will drive the motor miniaturization of rotating shaft 104 thus.
An alternative embodiment of the invention, sliding component 131 are that the synthetic resin of ceramic powders or other the powder with high rigidity and mar proof material formation constitutes with the little synthetic resin of coefficient of friction, as containing metal dust.
Preferably, can improve mechanical strength thus the epoxy injection shaping resin that is filled into as metal dust aluminium powder or iron powder in the epoxy resin.
In addition, ceramic powders is normally used aluminium oxide (Al 2O 3) or add a spot of other metal oxides or bond therein, with sintering after the pressure forming, be used in the gas atomization manufactured that atomizes in the inert atmosphere again, approximately till 1100 ℃, its hardness is constant.Specific heat is 4 times of superhard alloy approximately, and pyroconductivity is 1/2nd of superhard alloy approximately, and thermal expansion is less.And, superhard alloy is about just quite easy oxidation deterioration more than 1000 ℃, but pottery remains stable till about 2000 ℃, because it is all lower to the compatibility of most of metal, thereby be difficult to produce fusion with other objects, have the strong characteristic of abrasion resistance.
As mentioned above,, form, therefore,, made, can reduce the back labor content significantly by injection moulding though pottery is a difficult to machine material by injection moulding because the part of bobbin case 102 is with after ceramic powders and the synthetic resin mixing.In addition, the mar proof of pottery, good heat resistance can provide the sliding component that can use for a long time.
The powder that other the material with high rigidity and mar proof constitutes can add carbon dust or carbon fiber in nickel alloy, superalloy and these alloys.Like this, one or several powder of selecting the powder that constitutes from metal dust, ceramic powders or by the material with high rigidity and mar proof mix with synthetic resin, just can form sliding component with injection moulding.Particularly in sliding component, needing on the high-intensity part, with above-mentioned metal dust, ceramic powders or other are increased by the blending ratio with powder that high rigidity and mar proof material constitute, when improving intensity, need the part of intensity to compare with those, do not needing on the high-intensity part, the mixed proportion of various powder is dwindled.Thus, the amount of powder that is mixed in the synthetic resin is reduced, just can reduce manufacturing cost, improve economy.
Below, further doing to replenish narration for this class by the structure of the vertical full rotating shuttle shown in Fig. 1-Figure 20, the whole 204a of peg or spindle can be made by stainless steel, iron and steel makes.Peg or spindle body 204a also can be formed by above-mentioned synthetic resin and intermetallic complex.Above-mentioned synthetic resin and intermetallic complex for example can constitute by metal fibre such as filling aluminum or brass in epoxy resin.The thickness of above-mentioned metal fibre is to use about 0.01mm.Can improve mechanical strengths such as tensile strength, compression strength thus,, make 4 times of the increases of tensile strength by adding 35% metal fibre.
In addition, also available aluminium powder or iron powder are filled into the resin that epoxy injection is shaped in the epoxy resin, strengthen mechanical strength thus.
As an alternative embodiment of the invention, also can in synthetic resin, add carbon dust, to replace the above-mentioned metal in the complex of synthetic resin and metal.
Guide rail component 217 is made of the high density polyethylene (HDPE) that contains lubricant, for example contains lubricating grease.The above-mentioned high density polyethylene (HDPE) that contains lubricating grease is that the synthetic resin powder that will be made of polyethylene mixes with lubricating grease, be heated to 150 ℃, solidifying to form the poly proportion of resinoid above-specified high density is 0.94-0.96, degree of crystallinity is 85-95%, hardness Hs=75, with the oily separating degree of 5700G effect in the time of 1 hour is 5%, and has about 30kg f/cm 2Compression strength.In addition, above-mentioned lubricating grease also can use the high lithium soap base grease of heat resistance or mix the gel silane lubricating oil of silica gel in methyl-monosilane oil.By constituting the guide rail 108 of above-mentioned peg or spindle 106 with this resinoid, the wearing and tearing that the contact between above-mentioned guide rail 108 and the guide groove 128 causes, the oil lubrication that is produced in the high density polyethylene (HDPE) and reducing.
As an alternative embodiment of the invention, such resin only forms the superficial layer of guide rail 108, and the remainder beyond this superficial layer can constitute by having other synthetic resin of forming.
Bobbin case 102 can be made of iron and steel, stainless steel, synthetic resin, inorganic material and other materials.
In another embodiment of the present invention, rail sections 217 is made of liquid crystal polymer.The above-mentioned liquid crystal polymer that on high molecular main chain, has bar-shaped rigidity straight chain composition, because the molecular separating force between rigidity straight chain composition is big, and orientation and crystallization well when being shaped, therefore its heat resistance is very good, even the friction that causes owing to the bobbin case that rotates driving at a high speed uprises temperature, but because its heat distortion temperature is high, thereby do not deform.In addition, because above-mentioned liquid crystal polymer is made of the rigid molecule chain, during shaping on flow direction high orientation, thereby be high strength, the high elasticity rate, again owing under the state that extends relatively with the strand alignment direction, arranging, even thereby add upper pulling force, occur in this above torque characteristics preferably that extends hardly but demonstrate.In addition, linear expansion coefficient is very little, and particularly the linear expansion coefficient on the flow direction is 1 * 10 -5About cm/cm ℃.Such linear expansion coefficient is the low order of magnitude of synthetic resin than other, can obtain the DIMENSIONAL STABILITY equal with metal.Because this point almost is zero from the ambient temperature differences in summer and winter etc. and the change in size that is caused by psychrometric difference.And, because the weather fastness height of this liquid crystal polymer, thereby can use for a long time.In addition, because the molten condition of liquid crystal polymer and the structural similarity of solid state, thereby phase transformation is very little, the Volume Changes during curing is also little.
The present invention is not only vertical full rotating shuttle, and can be with horizontal full rotating shuttle and partly rotate in the relevant scope widely such as shuttle and implement.
Also can use material manufacturing peg or spindle and the bobbin case same with guide rail.
Figure 21 is the front elevation that the part of the horizontal full rotating shuttle 1 of expression one embodiment of the present of invention is dissectd, and Figure 22 is the plane of horizontal full rotating shuttle 1.In the bobbin case 3 of rotating shaft 2 with vertical axis, assembling peg or spindle 4, the guide groove that forms on the inner peripheral surface of the guide rail that forms on the outer peripheral face of this peg or spindle 45 and bobbin case 36 is chimeric.The spool 8 of the bottom line of reeling is housed in the recess 7 of peg or spindle 4.Insert logical garden tubular column bolt 11 in the medium pore 9 of this spool 8, it is to give prominence to be provided with on the end 10 of peg or spindle 4, to the open end of peg or spindle 4.The state that on the end of column bolt 11, along axis direction, extends and along the compressing tablet 12 that can freely carry out the setting of angular displacement ground of 2 enterprising line stabilizations in position of the state of radial direction angular displacement, with compressing tablet 12 as illustrated in fig. 2, under spool 8 is installed in state in the recess 7 of peg or spindle 4, during the stable state of turning around with on the radial direction of peg or spindle 4, extending, spool 8 in the recess 7 is released, and, just spool 8 can be unloaded from peg or spindle 4 by compressing tablet 12 is in the state that erects along the longitudinally of column bolt 11.
Form on the peg or spindle 4 along radial direction, outside outstanding linking part 13, linking peg or spindle spline member (end illustrates among the figure) on this linking part 13 rotates along with the bobbin case rotation to stop peg or spindle 4, under this state, above-mentioned bobbin case 3 is driven in rotation round rotation L1.Be provided with shuttle mouth 14 on bobbin case 3, make by shuttle mouth 14 and grab the upper thread of leaning on, the direction of representing to arrow 15 moves, and along the outer peripheral face threading of peg or spindle 4, combines with the bottom line of pulling out from above-mentioned spool 8, can form needle tracking continuously on sewn object.
Figure 23 is the back view of the peg or spindle 4 of horizontal full rotating shuttle 1.Peg or spindle 4 make close peg or spindle body 4a substantially and in the periphery of this peg or spindle body 4a and on the guide rail 5 that forms, in guide rail 5 upper edges circumferential disjunction formation separated time portion 18 with take out line portion 19.Above-mentioned guide rail 5 is made of rail sections 16 and lining member 17, and in above-mentioned separated time portion 18, rail sections 16 is being exposed from the direction of rotation Y upstream side ground of lining member 17 near bobbin cases 3.Form groove 20 in addition on the rail sections 16, chimeric part lining member 17 on this groove 20.
The section of seeing from the hatching A-A of Figure 23 is identical with above-mentioned structure shown in Figure 4.
Figure 24 is the back view of peg or spindle 34 of the horizontal full rotating shuttle of another embodiment of the present invention.Peg or spindle 34 is made the guide rail 35 that contains peg or spindle body 34a substantially and form on the outer peripheral face of this peg or spindle body 34a, on guide rail 35, separated time part 18 and take out line part 19 with its disjunction forming.Above-mentioned guide rail 35 is made of rail sections 36 and lining member 37, and at above-mentioned separated time part 18 places, guide rail 36 is exposing from the upstream side ground of lining member 37 near the direction of rotation Y of bobbin case 3.And, on rail sections 36, from the central point 39 of peg or spindle 4 towards circumferentially, with the interval about angle θ=50 °, be aperture 38 about 1.0mm forming 5-6 diameter on the guide rail 36, and in this aperture 38 the filling liquid crystal polymer.Along the section that the hatching B-B of Figure 24 sees, identical with above-mentioned Fig. 9, and the section of seeing along hatching C-C is identical with above-mentioned Figure 10.
As another one embodiment of the present invention, be in the horizontal full rotating shuttle of above-mentioned Figure 21-Figure 24, to set and Figure 19 and the identical sliding component 129,131 of embodiment shown in Figure 20, to replace film 17.In this case, the wearing and tearing of sliding component and guide rail can be reduced, durability can be improved.
In each embodiment of Figure 19-Figure 22, film 217 and sliding component 129,131, as mentioned above, can constitute by liquid crystal polymer, but as other embodiment, also can use aromatic polyimide resin, perhaps can also constitute with containing the lubricated high density polyethylene (HDPE) that cuts open.
In the bobbin case 3 of horizontal full rotating shuttle, at the inner face of its guide groove 128, the film 47 that the film of formation and embodiment shown in Figure 19 and Figure 20 129,131 is identical.This film 47 by with the above-mentioned same little synthetic resin of coefficient of friction, that is, by polytetrafluoroethylene (PTFE) or liquid crystal polymer, synthetic resin such as aromatic polyimide resin constitute, and can reach the effect same with vertical full rotating shuttle 1.
In horizontal full rotating shuttle, as another embodiment of the present invention, the whole of bobbin case 3 can be made of tetrafluoroethylene the little synthetic resin of coefficient of friction, also can be made of synthetic resin such as liquid crystal polymer or aromatic polyimide resins.In this case, make the wearing and tearing of guide rail 5 and guide groove 6 also as much as possible little, can reduce the noise of shuttle, energy high speed, garden rotate slidingly and drive bobbin case 3.And, because the guide groove 6 that forms with above-mentioned film 129,131 forms accurately, therefore, for the guide rail 5 that embeds in the guide groove 6, circumferentially pressure can be contacted uniformly, thereby the deflection wearing and tearing can be prevented along it.
Figure 25 is one embodiment of the present of invention, have the whole oblique view that partly rotates shuttle 321 of shuttle 320.Figure 26 is the side view of shuttle 320.Below the needle plate 335 that is set on the Sewing machines panel, disposing have an above-mentioned shuttle 320 partly rotate shuttle 321.Partly rotate shuttle 321, in the guide groove 311 that the inner peripheral surface of shuttle race 310 forms, embed guide rail 336 ground and supporting above-mentioned shuttle 320, adorning the shuttle case on the column bolt 322 that erectly is provided with in the bottom 323 of this shuttle 320, the spool of the bottom line 338 of reeling is being housed at the shuttle case.
On the opposite side of the rotation l2 of above-mentioned shuttle 320, disposing driver 340.This driver 340 has with the rotation l2 of above-mentioned shuttle 320 and becomes collinear rotation.Fixing the lower shaft 343 of Sewing machines on the installation portion 342 that links with actuator body 341.Each rotation L2 of the rotation of lower shaft 343 and above-mentioned shuttle 320 and driver 340 is on same straight line.
When sewing action beginning, lower shaft 343 is in the state that its rotation is prevented from, and the direction that shuttle 320 is pressed arrow D1 is driven by half rotation.And when driver 340 during in the rotation of the direction of arrow D2, the other end 350 of driver 340 and the inner face of above-mentioned recess 27 ground connection are mutually pushed, make shuttle case 337 be in the state that its rotation is prevented from thus, shuttle 320 with the direction of the rightabout arrow D2 of above-mentioned direction of rotation D1 on driven by half rotation.
Like this, by partly rotating in the shuttle 321 that half rotation drives, by the needlework that the pin 344 that pumps is drawn, caught by shuttle mouth 325, shuttle 320 forms the needlework coil by driver 340 effects, in half rotation of arrow D1 direction.At this moment, needlework are placed in lower position, move along the slip limit, guiding face limit of the needlework guide protrusion that forms recess with above-mentioned shuttle mouth 325, around the Sewing machines axis, along arrow D1, the D2 direction is back and forth partly rotated to be driven, simultaneously, with lower shaft 343 pin 344 is moved back and forth up and down,, needlework 346 are guided near the shuttle mouth 325 of shuttle 320 by the pin hole 345 that on above-mentioned needle plate 335, forms.In addition, be contained in the above-mentioned shuttle case bottom line 338 of reeling on the spool in 337, by the bottom line perforation that on shuttle case 337, forms, by bottom line regulating spring 348, the limit flexibly is pressed on the outer peripheral face 334 of shuttle clamshell 337, the limit is directed to the top by above-mentioned pin hole 345 from needle plate 335.
In addition, on shuttle case 337, be integrally formed into spline member 337a, this spline member 337a, be fixed on the support integratedly with sewing machine frame, be embedded in the chimeric recess of pressing member of the shuttle that does not illustrate among the figure, stop shuttle case 337 to rotate along with half spinning movement of shuttle 320.
Above-mentioned driver 340 is driven, is reciprocally driven by half rotation along arrow D1, D2 direction by half rotation of lower shaft 343.When driver 340 when arrow D1 direction is rotated, one end 349 contact shuttles 320, push towards the D1 direction, thus, vertical motion by the take-up spare that do not illustrate among the figure that is provided with on shuttle case 337 bodies, drop on the outer peripheral face of shuttle case 337, along with the rising of above-mentioned take-up spare, needlework 346 are at the slip limit, outer peripheral face top of shuttle case 337 threading.Like this,, choose the needlework 346 of top, fasten and form needle tracking with the bottom line 338 that the spool in the shuttle case 337 is drawn by take-up spare.
Above-mentioned needlework 346 are from shuttle mouth 325, when falling on the outer peripheral face of shuttle case 337, shuttle 320 reverses, gets back to initial position (state shown in Figure 25) along arrow D2 direction, along driving on the arrow D1 direction pin 344 is moved by driver 340 downwards again, catch near the needlework that are introduced to the shuttle mouth 325, form the needlework coil.Repeat a series of action like this and just can form continuous needle tracking.
The guide rail 336 of the shuttle 320 shown in Figure 26, identical with the embodiment of above-mentioned vertical full rotating shuttle and horizontal full rotating shuttle, its superficial layer is plastic by liquid crystal polymer and aromatic polyimide resin etc. at least.At this moment, shuttle race 310 can be steely.
Other embodiment of the present invention, shuttle 320 wherein are by material systems such as iron and steel, and the inner peripheral surface layer of the guide groove 311 of shuttle race 310 can be by making with synthetic resin such as same liquid crystal polymer of the foregoing description or aromatic polyimide resins at least.
An alternative embodiment of the invention, the inner peripheral surface layer of the superficial layer of the guide rail 336 of shuttle 320 at least wherein and the guide groove of shuttle race 310 can be by making with synthetic resin such as same liquid crystal polymer of the foregoing description or aromatic polyimide resins, like this, can reduce the frictional force of 310 of shuttle 320 and shuttle races.Therefore, make and be in contact with one another power between the chimeric recess of the chimeric shuttle pressing member of the spline member 337a of the shuttle case 337 that can fix on the shuttle 320 and this spline member 337a with unloading and diminish, when needlework 346 are pulled through between spline member 337a and the chimeric recess, can prevent to be subjected on the needlework big tension force effect.Can improve sewing quality thus.
The present invention only otherwise break away from its theme or principal character, available various forms is implemented.Therefore, the foregoing description is only represented simple case, and scope of the present invention is as shown in claims, and it is not limit by specification.
In addition, all belong to the distortion that equates with the application's claim scope in the scope or change entirely within the scope of the present invention.

Claims (22)

1. the peg or spindle of the full rotating shuttle of a Sewing machines, it is characterized in that, the guide rail surface layer of the peg or spindle at least in the full rotating shuttle is to be made of aromatic polyimide resin, and this aromatic polyimide resin is that the torque when making rotation when industrial sewing machines oil is arranged between the inner peripheral surface of guide rail surface layer and bobbin case guide groove drive the needed torque ratio of bobbin case not add this industrial sewing machines oil is also big.
2. as the peg or spindle of the full rotating shuttle of the Sewing machines of claim 1 record, it is characterized in that, on the rail sections of metal peg or spindle body, from the separated time portion of rail sections to taking out line portion, be integrally formed into the lining member of above-mentioned aromatic polyimide resin system and form guide rail, and on above-mentioned separated time part, metal rail sections is exposed towards bobbin case direction of rotation upstream side from above-mentioned lining member.
3. as the peg or spindle of full rotating shuttle of the Sewing machiness of claim 1 or 2 records, it is characterized in that above-mentioned guide rail forms first joint ring-type, and on the periphery of the chimeric cylindrical portion that is fixed on the peg or spindle body.
4. the peg or spindle of the full rotating shuttle of a Sewing machines, it is characterized in that, the guide rail surface layer of the peg or spindle at least in the full rotating shuttle is to be made of liquid crystal polymer, and the torque when this liquid crystal polymer makes the rotation when industrial sewing machines oil is arranged between the inner peripheral surface of guide rail surface layer and bobbin case guide groove drive this industrial sewing machines oil of the needed torque ratio of bobbin case is also big.
5. as the peg or spindle of the full rotating shuttle of the Sewing machines of claim 4 record, it is characterized in that, on the rail sections of metal peg or spindle body, from the separated time portion of rail sections to taking out line portion, be integrally formed into the lining member of above-mentioned liquid crystal polymer system and form guide rail, and on above-mentioned separated time part, metal rail sections is exposed towards bobbin case direction of rotation upstream side from above-mentioned lining member.
6. as the peg or spindle of full rotating shuttle of the Sewing machiness of claim 4 or 5 records, it is characterized in that above-mentioned guide rail forms the non junction ring-type, and on the periphery of the chimeric cylindrical portion that is fixed on the peg or spindle body.
7. the bobbin case of the full rotating shuttle of a Sewing machines, it is characterized in that, the interior surface layers of the guide groove of bobbin case at least in the full rotating shuttle is made of aromatic polyimide resin, and this aromatic polyimide resin is that the torque when making rotation when industrial sewing machines oil is arranged between the surface of guide groove interior surface layers and peg or spindle guide rail drive the needed torque ratio of bobbin case not have industrial sewing machines oil is also big.
8. the bobbin case of the full rotating shuttle of a Sewing machines, it is characterized in that, at least the interior surface layers of the bobbin case guide groove of full rotating shuttle is made of liquid crystal polymer, and this liquid crystal polymer is that the torque when making rotation when industrial sewing machines oil is arranged between the surface of guide groove interior surface layers and peg or spindle guide rail drive the needed torque ratio of bobbin case not have industrial sewing machines oil is also big.
9. full rotating shuttle, it is that bobbin case is driven in rotation around its rotation under the state that guide rail at peg or spindle is embedded in the guide groove of bobbin case and the rotation of peg or spindle is prevented from, it is characterized in that,
The above-mentioned bobbin case side face that included forms reeded bobbin case body and is fixed in the bobbin case body recess and has the sliding component of above-mentioned guide groove,
Above-mentioned sliding component is made of aromatic polyimide resin, and this aromatic polyimide resin is that the torque when making rotation when industrial sewing machines oil is arranged between the surface of guide groove interior surface layers and peg or spindle guide rail drive the needed torque ratio of bobbin case not have industrial sewing machines oil is also big.
10. full rotating shuttle, it is that bobbin case is driven in rotation around its rotation under the state that guide rail at peg or spindle is embedded in the guide groove of bobbin case and the rotation of peg or spindle is prevented from, it is characterized in that,
The above-mentioned bobbin case side face that included forms reeded bobbin case body and is fixed in the bobbin case body recess and has the sliding component of above-mentioned guide groove,
Above-mentioned sliding component is made of liquid crystal polymer, and this liquid crystal polymer is that the torque when making rotation when industrial sewing machines oil is arranged between the surface of guide groove interior surface layers and peg or spindle guide rail drive the needed torque ratio of bobbin case not have industrial sewing machines oil is also big.
11. the shuttle of one and half rotation shuttles, it is characterized in that, the superficial layer that partly rotates the guide rail of the shuttle at least in the shuttle is made of by resin aromatic series polyamides Asia, and this aromatic polyimide resin is that the torque when making rotation when between the inner peripheral surface of guide groove of the superficial layer of guide rail and shuttle race industrial sewing machines oil being arranged drive the needed torque ratio of bobbin case not have industrial sewing machines oil is also big.
12. the shuttle of one and half rotation shuttles, the superficial layer that it is characterized in that the guide rail of at least shuttle of half rotation in the shuttle is made of liquid crystal polymer, this liquid crystal polymer be the superficial layer that makes guide rail with the inner peripheral surface of the guide groove of shuttle race between rotation when industrial sewing machines oil the is arranged torque when driving the needed torque ratio of bobbin case and not having industrial sewing machines oily also big.
13. the shuttle race of one and half rotation shuttles, the inner peripheral surface that it is characterized in that the guide groove of at least shuttle race of half rotation in the shuttle is made of aromatic polyimide resin, and this aromatic polyimide resin is that the torque when making rotation when between the guide rail surface layer of guide groove inner peripheral surface and shuttle industrial sewing machines oil being arranged drive the needed torque ratio of bobbin case not have industrial sewing machines oily is also big.
14. the shuttle race of one and half rotation shuttles, it is characterized in that, the inner peripheral surface that partly rotates the guide groove of the shuttle race at least in the shuttle is made of liquid crystal polymer, and this liquid crystal polymer is that the torque when making rotation when industrial sewing machines oil is arranged between the guide rail surface layer of guide groove inner peripheral surface and shuttle drive the needed torque ratio of bobbin case not have industrial sewing machines oil is also big.
15. the shuttle of a Sewing machines, it comprises the spool that the bottom line of reeling is housed, and form at peripheral part circumferential extension guide rail peg or spindle case circle and, surround the bobbin case geosphere, catch upper thread, be rotated or swing, and in interior perimembranous, along circumferentially extending to form the guide groove that is embedded into guide rail, to keep the shuttle race circle of shuttle case, it is characterized in that, at least the superficial layer of guide rail or either party of inner peripheral surface layer of guide groove at least, be made of aromatic polyimide resin, this aromatic polyimide resin is that the torque when making the rotation that industrial sewing machines when oil arranged between these superficial layers and the inner peripheral surface layer drive the needed torque ratio of bobbin case not have industrial sewing machines oil is also big.
16. as the Sewing machines shuttle of claim 15 record, it is full rotation, it is characterized in that the shuttle race circle is the shuttle race circle of rotation.
17. as the Sewing machines shuttle of claim 15 record, it is half rotation, it is characterized in that the shuttle race circle is swung.
18. the Sewing machines shuttle as claim 15 record is characterized in that the peg or spindle case comprises the cylindrical portion that spool is housed, and above-mentioned guide rail forms the non junction ring-type, and on the chimeric periphery that is fixed on above-mentioned cylindrical portion.
19. the shuttle of a Sewing machines, it comprises the spool that the bottom line of reeling is housed, and form at peripheral part circumferential extension guide rail peg or spindle case circle and, surround the bobbin case geosphere, catch upper thread, be rotated or swing, and in interior perimembranous, along circumferentially extending to form the guide groove that is embedded into guide rail, to keep the shuttle race circle of shuttle case, it is characterized in that, at least the superficial layer of guide rail or either party of inner peripheral surface layer of guide groove at least, be made of liquid crystal polymer resin, this liquid crystal polymer is that the torque when making the rotation that industrial sewing machines when oil arranged between these superficial layers and the inner peripheral surface layer drive the needed torque ratio of bobbin case not have industrial sewing machines oil is also big.
20. as the Sewing machines shuttle of claim 19 record, it is full rotation, it is characterized in that the shuttle race circle is the shuttle race circle of rotation.
21. as the Sewing machines shuttle of claim 19 record, it is half rotation, it is characterized in that the shuttle race circle is swung.
22. the Sewing machines shuttle as claim 19 record is characterized in that the peg or spindle case comprises the cylindrical portion that spool is housed, and above-mentioned guide rail forms the non junction ring-type, and on the chimeric periphery that is fixed on above-mentioned cylindrical portion.
CN94120472A 1994-02-24 1994-12-20 Full rotating shuttle and sewing method Expired - Fee Related CN1042155C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP26985/94 1994-02-24
JP6026985A JPH07231992A (en) 1994-02-24 1994-02-24 Full-rotating bobbin case
JP6246592A JP3014021B2 (en) 1994-10-12 1994-10-12 Oil-free full-rotary kettle of industrial sewing machine
JP246592/94 1994-10-12

Publications (2)

Publication Number Publication Date
CN1124794A CN1124794A (en) 1996-06-19
CN1042155C true CN1042155C (en) 1999-02-17

Family

ID=26364851

Family Applications (1)

Application Number Title Priority Date Filing Date
CN94120472A Expired - Fee Related CN1042155C (en) 1994-02-24 1994-12-20 Full rotating shuttle and sewing method

Country Status (6)

Country Link
EP (1) EP0669415B1 (en)
KR (1) KR0121874B1 (en)
CN (1) CN1042155C (en)
AT (1) ATE219533T1 (en)
DE (1) DE69527103T2 (en)
TW (1) TW316935B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19983955B8 (en) * 1999-05-28 2009-12-10 Hirose Manufacturing Co. Ltd. Circumferential gripper
JP4502788B2 (en) * 2004-11-24 2010-07-14 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー Horizontal rotary hook
KR101484935B1 (en) * 2014-01-03 2015-01-22 (주)신진스틸 Loop expansion device for sewing machine
CN104060412B (en) * 2014-04-28 2016-03-16 宁波市鄞州勇耀缝制机械有限公司 The interior shuttle of sewing-machine rotating shuttle and manufacturing technique thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6064777U (en) * 1983-10-13 1985-05-08 ブラザー工業株式会社 Inner pot of full-rotation pot
JPS6170075A (en) * 1984-09-12 1986-04-10 水島　繁三郎 Shape memory silk yarn and its production

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2348718A (en) * 1942-03-21 1944-05-16 Samuel A Bethune Shuttle case bearing
NL107894C (en) * 1952-03-26
DE1017894B (en) * 1954-08-18 1957-10-17 Phoenix Naehmaschinen A G Baer Gripper arrangement for freely running grippers for sewing machines
JPS60149388U (en) * 1984-03-14 1985-10-03 ジャガー株式会社 sewing machine pot

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6064777U (en) * 1983-10-13 1985-05-08 ブラザー工業株式会社 Inner pot of full-rotation pot
JPS6170075A (en) * 1984-09-12 1986-04-10 水島　繁三郎 Shape memory silk yarn and its production

Also Published As

Publication number Publication date
EP0669415A1 (en) 1995-08-30
TW316935B (en) 1997-10-01
CN1124794A (en) 1996-06-19
DE69527103T2 (en) 2003-01-16
DE69527103D1 (en) 2002-07-25
ATE219533T1 (en) 2002-07-15
KR950025132A (en) 1995-09-15
KR0121874B1 (en) 1997-11-18
EP0669415B1 (en) 2002-06-19

Similar Documents

Publication Publication Date Title
CN1042155C (en) Full rotating shuttle and sewing method
CN101079560A (en) Spindle motor
CN101076679A (en) V ribbed belt and belt transmission gear for automobile ancillary drive utilizing the same
CN1255477C (en) Polyamide resin composition
CN1904399A (en) Hydrodynamic bearing device, motor, and disk driving apparatus
CN1510199A (en) Cylindrical washing machine
CN86100995A (en) Emery wheel
CN1906401A (en) Fuel supply pump and tappet structure body
CN1541237A (en) Thermotropic liquid-crystal polymer
CN1776249A (en) Timing belt
CN1605766A (en) Friction material containing partially carbonized carbon fibers
CN1520012A (en) Exciting dynamo
JP4946498B2 (en) Resin pulley
CN1655913A (en) Tape-shaped molding and belt for ball chain
CN1087401C (en) Fluid compressor
CN1135776A (en) Spinning ring
CN1254822C (en) Optical disk device
CN1293273A (en) Rotary shuttle of sewing machine
CN1300487C (en) Tooth belt and its prepn. method
CN1107750C (en) Filament-yarn curtain thread for reinforing hose, production method and hose thereof
CN1623051A (en) Composite friction element and pultrusion method of making
CN1193476C (en) Mainshaft motor
CN1540088A (en) Combination of oil preparation of spun fabric cord
JPH11166603A (en) Belt tension adjusting device
JPH06327873A (en) Hook retainer in final sewing machine

Legal Events

Date Code Title Description
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 19990217

Termination date: 20111220