CN100406634C - Uper and lower conveying sewing machine and thread adjuster - Google Patents
Uper and lower conveying sewing machine and thread adjuster Download PDFInfo
- Publication number
- CN100406634C CN100406634C CNB021031908A CN02103190A CN100406634C CN 100406634 C CN100406634 C CN 100406634C CN B021031908 A CNB021031908 A CN B021031908A CN 02103190 A CN02103190 A CN 02103190A CN 100406634 C CN100406634 C CN 100406634C
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- Prior art keywords
- line
- cloth
- control device
- needle
- tension
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/02—Work-feeding means with feed dogs having horizontal and vertical movements
- D05B27/06—Work-feeding means with feed dogs having horizontal and vertical movements arranged above and below the workpieces
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B47/00—Needle-thread tensioning devices; Applications of tensometers
- D05B47/04—Automatically-controlled tensioning devices
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/28—Applications of servo devices for tool-positioning purposes
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The upward/downward feeding sewing machine comprises an upward feeding unit for feeding upper fabric and a downward feeding unit for feeding lower fabric, for controlling the quantity of contraction to be applied to an object to be sewn by changing a difference in the feeding quantities of both the feeding units. It further comprises a thread conditioning device to be driven by an electric driving means to change the thread tension and a control means for controlling the thread conditioning device to change the thread tension corresponding to the contraction quantity, and a setting unit for setting the setting value of the thread tension corresponding to the contraction quantity. The control unit controls the thread conditioning device corresponding to the contraction quantity to provide the thread tension of the setting value set by the setting unit.
Description
Technical field
The present invention relates to a kind of can be while receiving the conveying sewing machine up and down that pleat (indentation stitching-easing, seam contracts) makes.And the invention still further relates to the needle-thread tensioning control device of the Sewing machines that provides the suture line tension.
Background technology
At present, while knowing to have, people receive the conveying sewing machine up and down that pleat makes as described in a kind of can carry out when last sleeve etc. as Japan's patent announcement communique flat 4-66598 number or the flat 3-37958 communique of patent announcement communique are announced.
Here said " receive pleat " for example be meant make western-style clothes sleeve etc. have the part of three-dimensional shape the time, conveying capacity by making outside cloth in 2 overlapping clothes making (going up cloth) forms the stitching that makes outside cloth have certain unnecessary amount greater than the conveying capacity of inboard cloth (following cloth).
In general, not necessarily receive pleat in the portion uniformly all making of making, for example, when sleeve was made on carrying out, pleat containing amount was many near sleeve shoulder (sleeve cap) portion, and did not receive making of pleat in the bottom (oxter) of tucking inside the sleeve.
In the past this received the conveying sewing machine up and down of pleat no matter what of pleat containing amount carry out continuous making with certain thread tension at any time.
In addition, as the needle-thread tensioning control device of Sewing machines, people know to have a kind ofly have a pair of ring-type line transfer dish that can the clamping suture and have the drive rod of fixed platen parts and can make the platen parts push down the Sewing machines needle-thread tensioning control device of the driving mechanism of line transfer dish.In such Sewing machines needle-thread tensioning control device, when being pressed in the platen parts on the line transfer dish, generally be to make the platen parts form circular line to contact, or form circular face contact with the contact site of line transfer dish.
Implement described the making of pleat received, be to make by upper thread and bottom line hook are connected between 2 clothes, but under the many situations of pleat containing amount, promptly when its result forms the overlapping thickness thickening of 2 clothes, if upper thread can not pull bottom line with strength, the mutual hook vicinal set that then can not make upper thread and bottom line is on the suitable position between the cloth up and down.
Promptly, if carry out the continuous chirring system of receiving with certain line tension, then when making pleat containing amount part how, suture can not tighten up (line tension is not enough), cause when having made back expansion cloth, can be observed the phenomenon (being commonly called as " laughing at mouth ") that between cloth and cloth, forms the gap.
Otherwise, if tighten up suture (raising line tension) at the sleeve shoulder portion, then owing to make with undue line tension not implementing to receive the oxter part of pleat, therefore in order to prevent above-mentioned phenomenon, when such clothes is through when lifting arm on one's body, the suture of oxter will be broken.So, need be by the needle-thread tensioning control device of best line tension can be provided at any time, the line tension that provides corresponding pleat containing amount is made.
In addition, described existing Sewing machines needle-thread tensioning control device exists the line tension problem of unstable.
Promptly, in Sewing machines needle-thread tensioning control device in the past, since by with the platen parts of line transfer dish subtend so that the plane of the axle center of drive rod as normal is pressed in the rib portion of line transfer dish endoporus, so when the platen parts tilted, the pressure of platen parts that is pressed in the line transfer dish was just inhomogeneous.The result causes the instability of line tension.
The present invention is making under the situation that has different pleat containing amounts in the portion even its purpose is to provide a kind of, also the conveying sewing machine up and down that can make under the line tension of the best at any time continuously in order to solve the above problems.
In addition, another purpose of the present invention provides a kind of Sewing machines needle-thread tensioning control device that can obtain stability line tension force at any time.
Summary of the invention
In order to solve the above problems, the present invention's 1 conveying sewing machine up and down, be to have to carry the last cloth conveying mechanism of going up cloth and carry the following cloth conveying mechanism of cloth down, and the conveying capacity by changing two conveying mechanisms is poor, regulate the conveying sewing machine up and down of the pleat containing amount that tailoring cloth is implemented, it is characterized in that: have by electric driver and drive to change that the needle-thread tensioning control device of line tension and corresponding described pleat containing amount are controlled the drive unit of described needle-thread tensioning control device and the controlling organization that increases and decreases described line tension.
According to the present invention's 1 conveying sewing machine up and down, by corresponding pleat containing amount needle-thread tensioning control device is controlled, its result makes the corresponding pleat containing amount of line tension and changes.
Thereby even make under the different situation of pleat containing amount in the portion continuous, the suitable tension force of extent control that can corresponding pleat containing amount can be made with the line tension of the best at any time.
Specifically be, continuous making in the process, by carrying out splicing thread tension force when making pleat containing amount part how, pleat containing amount is few or when not implementing to receive the making of pleat part making, reduce line tension, control like this, can realize making with the line tension of the best at any time.
The present invention's 2 conveying sewing machine up and down is in the present invention's 1 conveying sewing machine up and down, it is characterized in that: the set mechanism with the thread tension setting value that can set corresponding pleat containing amount; The corresponding pleat containing amount of described controlling organization is controlled described needle-thread tensioning control device, makes it set the line tension of setting value by described set mechanism.
Here, be in principle, pleat containing amount preestablishes owing to each is made the interval, so, be the pleat containing amount that is given.
And, in addition, because the present invention possessed set mechanism, so can corresponding pleat containing amount set the setting value of line tension.
In addition, controlling organization is made the interval at each needle-thread tensioning control device is controlled, and makes it provide the line tension of the setting value of the corresponding pleat containing amount in the setting value of setting by set mechanism.
According to the present invention's 2 conveying sewing machine up and down, at first owing to possessed set mechanism, thus can be before making corresponding pleat containing amount set the setting value of line tension.
In addition, needle-thread tensioning control device is controlled, can be controlled line tension and make it equal the setting value that this is set by controlling organization.That is, its result can carry out the control that corresponding pleat containing amount changes line tension.
That is degree that, can corresponding pleat containing amount is made with needed line tension.
Here, when reciprocating eedle leaves sewn object (at eedle to the direction of tension suture when moving), even the tension force that is provided by needle-thread tensioning control device is certain, actual line tension also can increase, so when making, line tension can occur and cross situation strong or the suture broken string.
Therefore, the present invention's 3 conveying sewing machine up and down is in the present invention's 1 or 2 conveying sewing machine up and down, it is characterized in that: have to detect and make the reciprocating machine spindle position of rotation of eedle testing agency; Described controlling organization correspondence is controlled described needle-thread tensioning control device and is provided the suture line tension by the detected position of rotation of described position of rotation testing agency.
3 conveying sewing machine up and down according to the present invention, because the given tension force of Position Control needle-thread tensioning control device that can corresponding eedle, so set the tension force that this provides by the location-appropriate of corresponding eedle, can prevent to break and can make with suitable line tension.
Specifically be, when eedle during away from sewn object, the tension force that reduces to provide (comprising 0 tension force) when eedle during near sewn object (comprising that Sewing needles thrusts the situation of sewn object) strengthen the tension force that provides, control like this.
According to the needle-thread tensioning control device of the present invention's 4 Sewing machines, the platen parts by free yaw be arranged on the drive rod of described driving mechanism.And, by adopting such structure, when making the platen parts push down the line transfer dish, push down orientation that the platen parts of line transfer dish can automatically corresponding line transfer dish and change the orientation of self, the pressure of the platen parts of pushing down the line transfer dish is kept in balance.Therefore, can obtain stable line tension at any time.
In addition, according to the needle-thread tensioning control device of the present invention's 5 Sewing machines, be in the needle-thread tensioning control device of the present invention's 4 Sewing machines, the rotation-preventing mechanism that prevents described platen parts rotation is set.And,, can prevent from effectively between the line transfer dish, to deviate from through the mutual suture of a pair of line transfer dish by adopting such structure.
In addition, the needle-thread tensioning control device of 6 Sewing machines according to the present invention is in the needle-thread tensioning control device of the present invention's 4 or 5 Sewing machines, is provided with and is controlled at the orientation controlling organization that the platen parts are not pushed down the platen component orientations under the line transfer dish open state of line transfer dish.And,, can make in the platen component orientations of line transfer dish under open state certain by adopting such structure.
Description of drawings
Fig. 1 is the stereoscopic figure of the structure of expression Sewing machines needle-thread tensioning control device of the present invention.
Fig. 2 is the local main cutaway view of needle-thread tensioning control device of the present invention.
Fig. 3 is the exploded perspective view of needle-thread tensioning control device of the present invention.
Fig. 4 be presentation graphs 1 needle-thread tensioning control device walk near the wire spring amplification exploded perspective view.
Fig. 5 is near the part section stereogram of line transfer dish of the needle-thread tensioning control device of presentation graphs 1.
Fig. 6 is the stereoscopic figure that expression has the Sewing machines of needle-thread tensioning control device of the present invention.
Fig. 7 is near the amplification stereogram of the major part the expression head of sewing machine of the present invention.
Fig. 8 is near the front view the head of sewing machine of the present invention.
Fig. 9 is the stereogram of the left angle of squint of head of sewing machine part of the present invention.
Figure 10 is the expression block diagram of the main composition of conveying sewing machine up and down of the present invention.
Figure 11 is the schematic diagram of setting picture of the line tension of the corresponding pleat containing amount of explanation.
Figure 12 is the schematic diagram that the angular range of the machine spindle of explanation change thread tension is set picture.
Figure 13 is the flow chart that the corresponding pleat containing amount of explanation carries out thread tension control.
Among the figure: the 1-needle-thread tensioning control device, 2,2A, 2B-line transfer dish, 3-line transfer rod, the 4-drive rod, 5-walks wire spring, 6-line transfer rod platform, the 8-anti-rotation member, 10-line transfer dish fixing spring, 13-platen parts, 13b-(as contact with projection) claw, 16-orientation controlling organization, the 17-rotation-preventing mechanism, 18-driving mechanism, 20-o, the 31-thread take-up tension lever, the 41-department of assembly, 42-carriage configuration portion, 43-solenoid support portion, the 44-assembling stand, the M-Sewing machines, MA-cantilever portion, AH-head of sewing machine portion, the T-upper thread, 101-eedle position-detection sensor (constituting position of rotation testing agency), 102-position of rotation detecting sensor (constituting position of rotation testing agency), 103-ROM (formation controlling organization), 104-RAM (formation set mechanism), 105-guidance panel (formation set mechanism), 107-CPU (formation controlling organization), the last cloth feed drive of 111-circuit (cloth conveying mechanism on the formation), the last cloth transport pulse of 112-motor (cloth conveying mechanism on the formation), cloth feed drive circuit under the 113-(constituting cloth conveying mechanism down), cloth transport pulse motor under the 114-(constituting cloth conveying mechanism down), the 115-line tension is adjusted circuit (controlling organization).
The specific embodiment
At first, referring to figs. 1 through Fig. 5 the embodiment of Sewing machines needle-thread tensioning control device of the present invention is described.
As shown in Figure 1, the needle-thread tensioning control device 1 of present embodiment, have a pair of formation ring-type that can clamp upper thread (Fig. 2) line transfer dish 2 (2A, 2B).As shown in Figures 2 and 3, these line transfer dishes 2 are supported on the line transfer rod 3.As Fig. 2 and shown in Figure 4, this line transfer rod 3 forms the outer peripheral face of 4 pitch circle tubulars, and the dextrosinistral order of each outer peripheral face in Fig. 4 is respectively anti-rotation member installation portion 3a, line transfer disc mounting part 3b, spring installation portion 3c and platform installation portion 3d.And the outer peripheral face of line transfer rod 3 is in the diameter maximum at spring installation portion 3c place, and the diameter of line transfer disc mounting part 3b and anti-rotation member installation portion 3a reduces successively, the diameter minimum of platform installation portion 3d.In addition, as Fig. 2 and shown in Figure 5, line transfer disc mounting part 3b by each line transfer dish endoporus 2a, the 2b (Fig. 3) that connect each line transfer dish 2 central parts along thickness direction are inserted line transfer rod 3 can move freely and freely rotate the line transfer dish 2 that is set on the line transfer disc mounting part 3b on direction of principal axis.In addition, as shown in Figure 2, in the endoporus of line transfer rod 3, be supported with the drive rod 4 that can move back and forth at direction of principal axis.This drive rod 4 is such as described later, connects two side RW, the LW of Sewing machines M chain-drive section AH about being configured in the horizontal direction.
On the spring installation portion 3c of described line transfer rod 3, the known in the past wire spring 5 of walking is installed.As shown in Figure 4, this is walked wire spring 5 integral body and is torsion-coil spring, forms to the outstanding button card 5a in inside at left end.The front end of this button card 5a extends along direction of principal axis to the right walking wire spring 5 inside, form roughly L word shape, by this button card 5a is stuck in from buckleing in the draw-in groove 3e that the left side of spring installation portion 3c outer peripheral face axially forms, walking on the outer peripheral face that wire spring 5 is fixed on spring installation portion 3c.In addition, form along the 5b of hanging wire portion that diametric(al) is extended laterally at the right-hand member of walking wire spring 5, this upper end forms the roughly U word shape that can tangle upper thread T (Fig. 2).
As shown in Figure 2, line transfer rod platform 6 is housed on the platform installation portion 3d of described line transfer rod 3.The integral body of this line transfer rod platform 6 forms endoporus and is divided into the cylindric of 2 joints.And minor diameter 6a is set at left end, on the right positions of this minor diameter 6a, forms coaxial holding and is arranged on the large-diameter portion 6b that walks wire spring 5 on the spring installation portion 3c.In addition, as Fig. 2 and shown in Figure 5, the front end by the 1st trip bolt 7 that is screwed into to minor diameter 6a in the left side of the outer peripheral face of line transfer rod platform 6 contacts with the outer peripheral face of platform installation portion 3d, makes line transfer rod 3 be fixed on the inboard of the excellent platform 6 of line transfer.In addition, as shown in Figure 4, on the right side of line transfer rod platform 6 outer peripheral faces, the 5b of hanging wire portion that can be walked wire spring 5 that along the circumferential direction forms specific length inserts the logical spring inserting hole 6c in thickness direction formation perforation.
The described hanging wire 5b of portion, under the effect of the spring force of walking wire spring 5, usually withstood on spring inserting hole 6c in Fig. 4 above on the end face, under the external force that is applied to the 5b of hanging wire portion (effect of upper thread T) effect, in the scope of spring inserting hole 6c, can move in a circumferential direction.This walk wire spring 5 press to the pressure of the end face of inserting hole 6c can be by unclamping the 1st trip bolt 7, line transfer rod platform 6 rotation line transfer rods 3 are adjusted relatively.That is, when the counter rotation line transfer rod 3 of relative line transfer rod platform 6 in Fig. 4, increase the spring force of the hanging wire 5b of portion, when turning clockwise, reduce spring force.
The right side of described line transfer rod platform 6 in Fig. 2, form with the middle body of the approximate diameter direction of the left side of line transfer dish 2B and contact, restriction line transfer dish 2 on the line transfer disc mounting part 3b of line transfer rod 3, carry out direction of principal axis when moving the left in Fig. 2 to the maximum shift position on the left of direction of principal axis.And the left part of line transfer rod platform 6 as describing in detail in the back, is fixed on outstanding being arranged on the large-diameter portion 41ab of the installation portion 41 on the Sewing machines M chain-drive section AH right side wall RW.
On described anti-rotation member installation portion 3a, be equipped with and roughly be anti-rotation member 8 cylindraceous.On the outer peripheral face of this anti-rotation member 8, as shown in Figure 3, be provided with from the center mutually 3 paw groove 8a that extend at direction of principal axis with equal angles with being separated by.In addition, as shown in Figure 2, contact with the outer peripheral face of anti-rotation member installation portion 3a, anti-rotation member 8 is fixed on the anti-rotation member installation portion 3a by the front end that makes the 2nd trip bolt 9 that is screwed into paw groove 8a bottom.In addition, on the right side of anti-rotation member 8, form whole for the spring of the ring-type groove 8b that packs into, in this spring is packed groove 8b into, the fixing spring (compression spring) 10 of packing into and being used for fixing platen parts 13.In addition, as shown in Figure 2, on the outer peripheral face of anti-rotation member 8, the 3rd trip bolt 12 is fixed the open side that formation roughly is the protective cover 11 that the round-ended cylinder shape is arranged, and covers anti-rotation member 8 and is arranged on the right side part of anti-rotation member 8.
As shown in Figure 2, described drive rod 4 on the end of line transfer rod 3 one sides, be provided with platen parts 13.As shown in Figure 3, these platen parts 13 have and form circular matrix part 13a, and the endoporus 13aa that is formed on this matrix part 13a central part is supported on the outer peripheral face of drive rod 4.In addition, be arranged in matrix part 13a on the left side in Fig. 2 left side, contact with the right-hand member of fixing spring 10, under the spring force effect of fixing spring 10, platen parts 13 are pushed up the direction of separating with line transfer rod 3 shown in the right side in Fig. 2 usually.Therefore, on drive rod 4, screw in setscrew nut 14, limit the displacement on drive rod 4 of the platen parts 13 that are installed on the drive rod 4 thus to the right side that is arranged in Fig. 2 right side.
Setscrew nut 14 in the present embodiment, its outer peripheral face that is arranged in left end one side in Fig. 2 left side forms the coniform of tack, forms the thin circumferentia of left side, forms substantial line with the inner periphery portion of the right side that is arranged in Fig. 2 right side of matrix part 13a and contacts.In addition, the endoporus 13aa of matrix part 13a on being inserted in the outer peripheral face of drive rod 4 loosely in, because platen parts 13 are at a distance of the interval of anti-rotation member 8 regulations, so platen parts 13 under the state on the outer peripheral face that is supported on drive rod 4, can change its orientation.That is, the platen parts 13 that are assembled on the drive rod 4 can form free yaw.
In addition, as mentioned above, fixing spring 10 contacts with the neighboring of the matrix part 13a of platen parts 13, because platen parts 13 push down setscrew nut 14, so the orientation of platen parts 13 under free state (the claw 13b described later and the line transfer dish 2a of platen parts 13 do not form state of contact) is controlled in the state of the axis normal of the face direction of its matrix part 13a and drive rod 4.
On the right part of described drive rod 4, also screwing in has the holding nut 15 that forms dual nut with setscrew nut 14, contact with the right side of setscrew nut 14 is fastening, but the installation site of stationary positioned nut on drive rod 4 like this.
In addition, the structure as being assemblied in platen parts 13 on the drive rod 4 also can adopt known in the past spherical bearing group free yaw on drive rod 4.That is, the spherical interior wheel of also can packing into is installed the foreign steamer that has with the roughly the same diameter recess of interior wheel on platen parts 13.
Described fixing spring 10, the platen parts 13 that are formed in present embodiment are not pressed in the orientation controlling organization 16 in the following control of line transfer dish open state platen parts 13 orientation on the line transfer dish 2.
On the neighboring of the matrix part 13a of described platen parts 13, form as 3 claw 13b that lean projection.These claws 13b forms substantially planar, and forms from the center apart from one another by angle same.In addition, each claw 13b extends out along the thickness direction of matrix part 13a in parallel to each other, cover the outer peripheral face of fixing spring 10, by each claw 13b being arranged on the paw groove 8a inside of described anti-rotation member 8, owing to the contacts side surfaces with paw groove 8a can prevent that platen parts 13 from along the circumferential direction rotating.In addition, the length of each claw 13b forms the thickness greater than anti-rotation member 8, though the leading section of each claw 13b separates with line transfer dish 2A in normal circumstances, but when platen parts 13 are revolted the spring force of fixing springs 10 when the direction of anti-rotation member 8 moves, the left side that the leading section of each claw 13b is crossed anti-rotation member 8, and with line transfer dish 2A right side roughly radially middle body contact.And the outer peripheral face of each claw 13b is positioned at the radially inner side of described anti-rotation member 8 outer peripheral faces.
In addition, be not limited to flat claw 13b, also can select to use the columnar protrusions of section as circle, semicircle, ellipse, four jiaos and different shape such as polygonal as leaning projection.And, as the quantity that leans projection, also can be set to more than 3.
By each claw 3b of described platen parts 13 being arranged on the inside of the paw groove 8a of described anti-rotation member 8, constituted the rotation-preventing mechanism 17 that prevents 13 rotations of platen parts of present embodiment.
As shown in Figure 2, be provided with o 20 in the left part of described drive rod 4 as the drive source of driving mechanism 18.This o 20 is such as described later, be installed on the o support portion 43 on the Sewing machines M chain-drive section AH left side wall LW, at the advance and retreat leading section of output shaft 20a of motion of direction of principal axis, fixing the both ends that form the tabular plate with trip bolt 22 along the thickness direction left folding pars convoluta 21L of nut bracket 21 on the left of Fig. 2 of bending shape upward.In addition, the right folding pars convoluta 21R on Fig. 2 right side of nut bracket 21 is inserted logical by the left part of drive rod 4, screwing in setscrew nut 23 in the end of outstanding drive rod 4 to the left from right folding pars convoluta 21R.In addition, at the output shaft 20a of o 20 and an opposite side end on drive rod 4 opposites, (Fig. 8, Fig. 9) fixing limit Cheng Huan 24 with screw 25, can limit the stroke of output shaft 20a by the fixed position of limit Cheng Huan 24.
In the present embodiment, o 20 as drive source, output shaft 20a retreats when inserting power supply, the spring force of the claw 13b resistance fixing spring 10 of platen parts 13 leans on the line transfer dish 2A, the left side that a pair of line transfer dish 2 is pressed among Fig. 2 promotes, make the subtend face contact of a pair of line transfer dish 2 like this, upper thread T is clamped between the subtend face of a pair of line transfer dish 2.That is, the o in the present embodiment 20 is to use the single-lift solenoid that only spurs work.In addition, also can use as o 20 and make output shaft 20a give as security the single-lift solenoid of action forward when the deenergization.In this case, o 20 is arranged on right side among Fig. 2, the right-hand member of drive rod 4 is connected with output shaft 20a, drive drive rod 4 from right to left by inserting power supply.In addition, as drive source, the shuttle solenoid that also can use the high slightly output shaft the controlled 20a of price to advance, retreat.
Constituted the driving mechanism 18 of platen parts 13 being pressed to line transfer dish 2 of present embodiment by described drive rod 4, platen parts 13 and o 20.
The setscrew nut 23 of present embodiment forms the shape identical with described setscrew nut 14.Promptly, it is coniform that the outer peripheral face of the right-hand member that is arranged in Fig. 2 right side one side of setscrew nut 23 is formed tack, and the thin circumferentia that forms the right side contacts with the circumferential edge portions formation substantial line that the right folding pars convoluta 21R of nut bracket 21 goes up the inserting hole 21Ra (Fig. 3) that inserts logical drive rod 4.And, be formed on inserting logical inserting hole 21Ra by drive rod 4 and being enclosed within loosely on the outer peripheral face of drive rod 4 on the right folding pars convoluta 21R, be supported under the state on drive rod 4 outer peripheral faces with nut bracket 21, can change the orientation of nut bracket 21.In addition, if under nut bracket 21 can not the situation of free yaw, the axle center of o 20 output shaft 20a is positioned on the extended line in drive rod 4 axle center determines rigging position exactly, causing needs to spend a lot of time in assembling process.But the nut bracket 21 of present embodiment owing to can be assemblied on the drive rod 4, can easily carry out the assembling of nut bracket 21 and drive rod 4 free yaw.
In the left part of described drive rod 4, be the holding nut 26 of the dual nut of formation that cooperates with setscrew nut 23, be spun on the left end face position contacting with setscrew nut 23, can be fixed on setscrew nut 23 on the fixed position of relative drive rod 4.In addition, as nut bracket 21 free yaws be assemblied in structure on the drive rod 4, also can on drive rod 4, use known in the past spherical bearing group.
Below, the embodiment of Sewing machines of Sewing machines needle-thread tensioning control device 1 that use is had the present embodiment of above-mentioned formation with reference to Fig. 8 to Fig. 9 describes.
As shown in Figure 8, have the frame MF of the Sewing machines M of present embodiment needle-thread tensioning control device 1, be set at the bottom of the MB of board portion, be provided with the cantilever portion MA that extends in parallel with the MB of board portion on top.And, by being constituted, MB of board portion and cantilever portion MA link, and whole front forms コ word shape.In addition, the needle-thread tensioning control device 1 of described embodiment is set on the AH of head of sewing machine portion that is arranged in cantilever portion MA free end side (Fig. 8 left side), provides upper thread T tension force by thread take-up tension lever 31 in upper thread supply source one side.
In addition, as Fig. 8 and shown in Figure 9, the needle-thread tensioning control device 1 of present embodiment is set at the lower right of thread take-up tension lever 31, simultaneously the upper thread T that draws from needle-thread tensioning control device 1 is directly supplied with thread take-up tension lever 31.That is, be set on the most influential part of upper thread T tension force.
As shown in Figure 8, in the Sewing machines M of present embodiment, on cantilever portion MA, specifically be on the right side wall RW on right side in Fig. 8 of the AH of head of sewing machine portion, be formed with the installation portion 41 that line transfer rod platform 6 is installed, left side wall LW inner side end is provided with carriage portion 42 is set, and the side end face is provided with solenoid support portion 43 outside.
Described installation portion 41 is arranged on the cantilever portion MA of Sewing machines M so that hollow cylindrical is outstanding, specifically is on the AH of head of sewing machine portion right side wall RW, and the endoporus of this installation portion 41 (hollow bulb) 41a forms continuous 2 sections.And, in forming Fig. 2 of installation portion 41, form and the minor diameter 41aa of endoporus 41a on same axis the right part of inserting drive rod 4 between wherein on the end face of the AH of head of sewing machine portion of left end face.In addition, the inner face of installation portion 41 endoporus 41a is large-diameter portion 41ab, and the outer peripheral face of line transfer rod platform 6 left end is housed.And, contact with the outer peripheral face of line transfer rod platform 6 by making from the front end of the not shown trip bolt of the peripheral part screw-in of installation portion 41, line transfer rod platform 6 is fixed on the large-diameter portion 41ab inside of installation portion 41.
As Fig. 8 and shown in Figure 9, described carriage is provided with on the cantilever portion MA that portion 42 is set at Sewing machines M, specifically is to be set on the inner face of the AH of head of sewing machine portion left side wall LW.Shown in imaginary line among Fig. 2, be provided with in the portion 42 at carriage, form the inserting hole 42a that extends in horizontal direction that inserts drive rod 4 left parts.In addition, as shown in Figure 2, be provided with at carriage on the left-hand end of portion 42, be formed with the concavity that the right folding pars convoluta 21R of the nut bracket 21 of shift position is not to the right reached at o 20 and abdicate the 42b of portion.
In addition, on same axle center, form the minor diameter 41aa of installation portion 41 and the inserting hole 42a that carriage is provided with portion 42, drive rod 4 can be horizontally disposed with.
As shown in Figure 8, described solenoid support portion 43 is set on the cantilever portion MA of Sewing machines M, specifically be to be set on the lateral surface of the AH of head of sewing machine portion left side wall LW, have the flat installation base plate 44 that o 20 is installed and be clipped in installation base plate 44 and left side wall LW between not shown fixed pedestal.Not shown fixed pedestal is fixed on the left side wall LW by the fixing means that requires, and utilizes a plurality of screw 44a that installation base plate 44 is fixed on this fixed pedestal, and, on installation base plate 44, utilize a plurality of screws 45 fixing o 20.
Because other structure is identical with in the past Sewing machines M, the explanation that the Therefore, omited is detailed.
In addition, the illustrated Sewing machines M of present embodiment tucks inside the sleeve, makes the sleeve Sewing machines that the solid of suitcase etc. is made on being used to carry out, but described needle-thread tensioning control device also can be used in the existing known various Sewing machiness of electronic cycle sewing machine, sewing machine for covering chain stitch etc.
In the conveying sewing machine up and down that the main square frame of representing in Figure 10 constitutes, the operation that is provided with by corresponding starter pedal 106 at cantilever portion MA left end (Fig. 6) drives, and makes to be arranged on the electrical motor of sewing machine 110 that the machine spindle (not shown) in the cantilever portion MA is rotated.
Omitted illustrated machine spindle, be connected, be fixed with eedle at the front end of this shank by the shank on circular motion being converted to reciprocating conversion equipment (switching mechanism) and being arranged on the AH of head of sewing machine portion.And, when driving the machine spindle rotation by electrical motor of sewing machine 110, eedle is along with shank moves up and down, make the upper thread T that is through on the eedle and not shown bottom line form mutual hook and connect, thereby the tailoring cloth that can be transferred by delivery board up and down described later (cloth and the cloth down gone up described later) is gone up and formed stitching.
At this moment, the tension force of upper thread T is strong more, and bottom line can be pulled by upper thread T more.
And, conveying sewing machine up and down, have to drive the last cloth transport pulse motor 112 of carrying the last cloth delivery board (diagram slightly) of going up cloth and drive and carry the following cloth transport pulse motor 114 of the following cloth delivery board of cloth (diagram slightly) down, when making, last cloth and down cloth carry with the speed (conveying capacity of regulation) of regulation respectively, constitute therefrom and go up cloth conveying mechanism and cloth conveying mechanism down.
At this moment, the conveying capacity by making cloth can form the pleat of receiving of cloth greater than the conveying capacity of cloth down, and in addition, the amount of the conveying capacity by cloth about changing is poor, can regulate pleat containing amount.That is, the conveying capacity of last cloth can obtain many pleat containing amounts more greater than the conveying capacity of following cloth.
In addition, can preestablish pleat containing amount according to making classification and each being made the zone.
Conveying sewing machine up and down, by import in advance based on this setting receive the pleat data, when making, automatically corresponding each make the area change conveying capacity of cloth up and down, thereby realize regulating making of pleat containing amount.
In addition, the conveying of cloth is moment above eedle is positioned at cloth to carry out synchronous conveying.
Conveying sewing machine up and down, have the regulation that detects eedle the position that moves up and down eedle position-detection sensor 101 and detect the position of rotation detecting sensor (for example being to carry out the sensor that angle detects) 102 of machine spindle position of rotation (anglec of rotation) with encoder.
Here, the anglec of rotation of machine spindle is 0 degree that the last summit of eedle is defined as rotatable phase.
And, detect the eedle vertex position of eedle arrival regulation at eedle position-detection sensor 101 after, detect from this detected moment machine spindle to have rotated how many degree (0 degree～360 degree) by position of rotation detecting sensor 102, according to this detected angle, above being positioned at cloth, carries eedle cloth when (needle plate top).That is, constitute position of rotation testing agency by eedle position-detection sensor 101 and position of rotation detecting sensor 102.
In addition, conveying sewing machine has this CPU107 (formation controlling organization) of conveying sewing machine integral body up and down of control up and down, with the ROM103 of the control program that stores this CPU107 etc. with have the storage area of preserving the thread tension setting value and a RAM104 of CPU107 operating area.
And, conveying sewing machine up and down, has the electrical motor of sewing machine drive circuit 109 that drives the driver of electrical motor of sewing machine 110 as control, drive the following cloth feed drive circuit 113 of the driver of cloth transport pulse motor 114 down and the line tension regulating circuit 115 of the driver that moves as control needle-thread tensioning control device 1 (o 20) with the last cloth feed drive circuit 111 of driver that drive to go up cloth transport pulse motor 112 as control with as control.
CPU107, behind the initiating signal that receives starter pedal 106, by electrical motor of sewing machine drive circuit 109, go up cloth feed drive circuit 111, cloth feed drive circuit 113 and line tension regulating circuit 115 down, to electrical motor of sewing machine 110, go up cloth transport pulse motor 112, the action of cloth transport pulse motor 114 and needle-thread tensioning control device 1 etc. is controlled down.
In addition, ROM103, the RAM104 in the above-mentioned formation, CPU107, electrical motor of sewing machine drive circuit 109, go up cloth feed drive circuit 111, cloth feed drive circuit 113 and line tension regulating circuit 115 are housed in circuit and are provided with in the case 108 down.
Conveying sewing machine up and down has and is used for correspondence and receives pleat grade (pleat containing amount) and set the guidance panel 105 of thread tension setting value, and CPU107 controls needle-thread tensioning control device 1 according to the setting value that configures.
In addition, when each being received after the pleat grade imported the recruitment of line tension, that is, and imported corresponding each receive after the setting value of pleat grade, the setting value of this input just is saved among the RAM104.
In addition, here be to receive the pleat grade since the just increase more of 0 grade of big more pleat containing amount of progression.In addition, the recruitment of line tension is used and is represented by the increment rate that the given tension force of needle-thread tensioning control device 1 is compared hour receiving the pleat grade.
In addition, correspondence is received pleat grade control line tension force and is only limited to upper thread, and the line tension of bottom line is constant.
In addition, by guidance panel 105, for example,, can set the angular range (rotation angle range of machine spindle) that provides line tension by needle-thread tensioning control device 1 according to setting picture G2 shown in Figure 12.That is specifically be to import beginning angle (line provides tension force and begins angle) that (setting) needle-thread tensioning control device 1 provides line tension and the angle at the end (line provides the tension force angle at the end) that provides line tension.This input value is stored among the RAM104.
In addition, CPU107 is when the line that reaches setting (input) provides tension force and begins angle, and control needle-thread tensioning control device 1 begins to provide line tension, when reaching line and provide the tension force angle at the end, finishes to provide line tension.
Below, the effect of present embodiment with above-mentioned formation is described.
Fig. 2 is illustrated in the needle-thread tensioning control device 1 of present embodiment, clamping upper thread T between the subtend face of a pair of line transfer dish 2, and upper thread T provided the state that the line transfer dish of suitable tension force clamps.Under the state that this line transfer dish clamps, o 20 is connected power supply, output shaft 20a retreats drive rod 4 is moved to the left.Then, along with the running fix nut 14 of drive rod 4 is also mobile to the left, the spring force of platen parts 13 resistance fixing springs 10 is moved to the left.By moving to the left of these platen parts 13,3 claw 13b that make platen parts 13 lean projection lean on line transfer dish 2A, the left side of a pair of line transfer Pan2Ding in Fig. 2, and its right-hand member with line transfer rod platform 6 are contacted.Thereby be formed between the subtend face of a pair of line transfer dish 2 and clamp upper thread T, and provide its suitable tension force.
At this moment, needle-thread tensioning control device 1 according to present embodiment, owing to be installed on the drive rod 4 of driving mechanism 18 platen parts 13 free yaws, so in the time of on platen parts 13 being pressed in line transfer dish 2A, be pressed in the orientation of the orientation change automatically that platen parts 13 on the line transfer dish 2A can corresponding line transfer dish 2 itself, the pressure that is pressed in the platen parts 13 on the line transfer dish 2A is kept in balance.Therefore, can keep stable line tension.
In addition, needle-thread tensioning control device 1 according to present embodiment, because on the position of platen parts 13 and line transfer dish 2A subtend, be provided with from the center as 3 the claw 13b that lean projection that lean with line transfer dish 2 with being separated by equal angles mutually, form at inevitable 3 with line transfer dish 2A and contact, institute is so that be pressed in the pressure of the platen parts 13 on the line transfer dish 2A and keeping in balance substantially on week entirely.Therefore, can keep stable line tension.
In addition, needle-thread tensioning control device 1 according to present embodiment, owing to be provided with the rotation-preventing mechanism 17 that prevents 13 rotations of platen parts, specifically be the inside that each claw 13b of platen parts 13 is arranged on the paw groove 8a of anti-rotation member 8, so line transfer dish 2 can not rotate, can keep stable line tension, can prevent rotation simultaneously, the phenomenon of upper thread T from deviating between the line transfer dish 2 takes place because of line transfer dish 2.
On the other hand, when disconnecting the power supply of o 20, output shaft 20a moves forward, and the state of drive rod 4 from Fig. 2 moved to the right.At this moment, drive rod 4 is moved to the right.Promptly, when output shaft 20a is mobile to the right, though the nut bracket 21 that is fixed thereon also moves to the right, because drive rod 4 forms movably slotting leading on the right folding pars convoluta 21R of nut bracket 21, so nut bracket 21 locomotivities can not conduct to drive rod 4 substantially.And because fixing spring 10 applies spring force to the right by 13 pairs of setscrew nuts 14 of platen parts, so after o 20 is cut off power supply, drive rod 4 is moved to the right by setscrew nut 14.By these platen parts 13 are moved to the right, the projection that leans of platen parts 13 is separated with line transfer dish 2, make between the subtend face of a pair of line transfer dish 2 and form the gap, do not exchange the line transfer dish open state that drum 2A applies power thereby form platen parts 13.
At this moment, needle-thread tensioning control device 1 according to present embodiment, owing to be provided with the orientation controlling organization 16 of not exchanging control platen parts 13 orientation under the line transfer dish open state that drum 2 applies power at platen parts 13, specifically be to be provided with the matrix part 13a of platen parts 13 is leaned fixing spring 10 on setscrew nut 14, so, the orientation that under line transfer dish open state, platen parts 13 are maintained fixed.Therefore, because when being pressed in platen parts 13 on the line transfer dish 2, the constant bearing that platen parts 13 are kept, each claw 13b of platen parts 13 almost contacts with line transfer dish 2A simultaneously, so the pressure inequality that can not total head causes on line transfer dish 2 because of each claw 13b can not take place, uniform pressure can be provided after contacting forming, the long-time stable tension of upper thread T can be provided with line transfer dish 2A.In addition, under line transfer dish opened state, owing to claw 13b does not contact with line transfer dish 2A, so under line transfer dish opened state, can guarantee upper thread is removed tension force.
Below, the action of making to conveying sewing machine up and down of the present invention describes with reference to flow chart (Figure 13).
At first, at step S1, by the operation of guidance panel 105 input being gone up " receive pleat data " of sleeve.That is, corresponding each make the zone input and receive the pleat grade.So this is received the pleat data and is stored among the RAM104.
Then, forward step S2 to, by to the operating and setting of guidance panel 105 corresponding each receive the recruitment of line tension of pleat grade.
Under the situation of present embodiment, for example as shown in Figure 9, for receive the pleat grade be divided into 0 grade, 1 grade, 2 grades, 3 grades ... 16 grades situation, corresponding line tension recruitment be set at 0%, 5%, 8%, 12% respectively ... 35%.
Here, the recruitment of setting line tension along with receive the pleat grade raising and increase.This is because the overlapping thickness of 2 clothes increases under the many situations of pleat containing amount, so must strengthen the line tension of upper thread, upper thread is pulled the bottom line brute force.
Behind completing steps S2, enter step S3, set the angular range that provides tension force.
Under the situation of present embodiment, for example as shown in Figure 12, set and to provide tension force to begin angle be 50 degree, providing the tension force angle at the end is 270 degree.That is to say, the anglec of rotation that makes machine spindle in the scopes of 270 degree～50 degree, that is, and be set in eedle be positioned at the summit neighbouring during, needle-thread tensioning control device 1 does not provide upper thread T tension force.Even needle-thread tensioning control device 1 does not provide tension force, because eedle is away from the cloth of being made near last summit, upper thread also is tightened up, and therefore, does not provide tension force by being set in the summit, can prevent that near the line tension last summit from increasing.
Then, in step S4, judge stepped on starter pedal 106 before, make electrical motor of sewing machine 110 be in the driving holding state, enter step S5 when being stepped on when judging, the amount of entering into of corresponding starter pedal 106 is carried out drive controlling to electrical motor of sewing machine.
Then in step S6, read out in that step S1 sets receive the pleat data receive the pleat grade, enter step S7, begin to make at step S7.
When this step S7 makes, in the pleat grade (pleat containing amount) of receiving of pleat data received of step S1 input transport pulse motor 112,114 is up and down carried out drive controlling according to beginning.
Then in step S8, whether the anglec of rotation of judging machine spindle arrives and provides tension force and begin angle, promptly is in the present embodiment 50 to spend, and reaches when providing tension force and beginning angle when being judged as, and enters step S9.
In step S9, by control needle-thread tensioning control device 1, correspondence is received the pleat grade and is provided line tension.That is, if receiving the pleat grade is 1 grade, the recruitment of then controlling line taking tension force is 5%.
Thereby correspondence is received the pleat grade, and promptly corresponding pleat containing amount is controlled by predefined line tension.
After completing steps S9, or in step S8, be judged as also not reach and provide under the situation that tension force begins angle, enter step S10, judge whether to arrive and provide the tension force angle at the end, promptly be 270 degree in the present embodiment, arrive when providing the tension force angle at the end when being judged as, enter step S11, finish to provide tension force by needle-thread tensioning control device 1.
After step S11, or also do not reach when providing the tension force angle at the end, enter step S12, judge whether starter pedal is stepped on when being judged as at step S10.
Be judged as under the situation about being stepped at step S12, carry out the following processing of step S5, be judged as under the situation about not stepped on, finish to make.
As mentioned above, according to conveying sewing machine up and down of the present invention, control the o 20 of needle-thread tensioning control device 1 by the anglec of rotation of corresponding machine spindle, because can be to making with each pleat grade control line tension force of receiving of making the corresponding setting in zone in advance, so can keep best line tension ground to make at any time.
Thereby even make under the different situation of pleat containing amount in the portion continuous, degree that also can corresponding pleat containing amount is controlled at any time with suitable line tension and is made.
Specifically be that corresponding each received the pleat grade by pre-set setting value control line tension force.
And, owing to can set the anglec of rotation of the machine spindle when providing line tension, so, can prevent excessive increase in the line tension of eedle away from the time by tailoring cloth by avoiding near last summit, providing the setting of line tension by needle-thread tensioning control device 1.
In addition, in the above-described embodiment, to the anglec of rotation (rotatable phase) that detects machine spindle earlier, example according to the given line tension of anglec of rotation control needle-thread tensioning control device is illustrated, the zone of making that also can separate cloth up and down, when for example on carrying out, tucking inside the sleeve, separately sleeve is takeed on, near the sleeve shoulder, the oxter make the zone, each is made pleat containing amount and the line tension that will set in the zone sets, the subtend cloth carries the pulse of motor input to count, and make the zone to should umber of pulse detecting, and make the pleat containing amount in zone by corresponding each, the drive unit (o) of control needle-thread tensioning control device increases and decreases line tension.
In addition, though taked to set the increase and decrease amount of line tension, also can take the form of thread tension value (gram) to set with the form of percentage.
In addition, illustrated with the needle-thread tensioning control device of o, but be not limited thereto, also can use the needle-thread tensioning control device as drive source such as oil cylinder, voice coil motor, stepper motor as drive source.
In addition, in the present embodiment, though be to drive the cloth material conveying device with pulse motor to reach cloth material conveying device down, the difference of respective pulses motor-driven amount changes the line tension that needle-thread tensioning control device provides, but also applicable to the conveying sewing machine up and down with well known device that the conveying capacity of mechanically carrying out each transport sets.That is, the variable resistance with mechanical type conveying capacity setting device interlock can be set also, go out the conveying capacity of each transport, difference that should detection limit is changed the line tension that needle-thread tensioning control device provides according to the resistance value detection of this variable resistance.
In addition, in the present embodiment, when detecting main axis rotation position (rotatable phase) arrival assigned position by position of rotation testing agency, begin or finish to provide tension force, but also can and provide line tension corresponding to position of rotation segmentation increase and decrease by needle-thread tensioning control device.
In addition, the formation of the THICKNESS CONTROL line tension of corresponding cloth also can obtain the effect identical with the present invention.
In addition, because cloth is elongated easily in the part of tape edge, even so the difference of the conveying capacity of transport pulse motor 112,114 is compared the easier pleat (it is many that pleat containing amount becomes) of receiving with the situation that the part outside the tape edge part is made under identical condition up and down.Therefore, if partly increase the control of line tension, then can partly carry out making of suitable line tension to tape edge at the tape edge of cloth.
According to the present invention's 1 conveying sewing machine up and down, can corresponding pleat containing amount control line tension force.Thereby even make under the different situation of pleat containing amount in the portion continuous, the suitable tension force of extent control that can corresponding pleat containing amount can keep best line tension to make at any time.
According to the present invention's 2 conveying sewing machine up and down, owing to have set mechanism, so, the setting value of can be making before corresponding predetermined pleat containing amount setting line tension.And, can control the line tension of needle-thread tensioning control device according to this setting value that is set by controlling organization.
According to the present invention's 3 conveying sewing machine up and down, because therefore Position Control line tension that can corresponding Sewing needles, by the suitable line tension of the set positions of corresponding eedle, can prevent to break and can form suitable sewing needle distance.
And, according to the needle-thread tensioning control device of the present invention's 4 Sewing machines, when the platen parts are pushed down the line transfer dish, push down the orientation of change automatically, orientation that the platen parts of line transfer dish can corresponding line transfer dish itself, the platen parts pressure of pushing down the line transfer dish is kept in balance.Thereby can obtain the fabulous effects such as line tension that keep stable at any time.
And, according to the needle-thread tensioning control device of the present invention's 5 Sewing machines, can obtain reliably to prevent that the suture that passes through between mutually from a pair of line transfer dish from fabulous effect such as deviating from from the line transfer dish.
And the needle-thread tensioning control device according to the present invention's 6 Sewing machines can obtain can make under line transfer dish open state the orientation of platen parts to keep certain fabulous effect that waits.
Claims (3)
1. a conveying sewing machine up and down has and carries the last cloth conveying mechanism of going up cloth and carry the following cloth conveying mechanism of cloth down, and the conveying capacity by changing two conveying mechanisms poor regulated the pleat containing amount to tailoring cloth enforcement; It is characterized in that:
Have that the needle-thread tensioning control device that can change line tension that driven by electric driver and corresponding described pleat containing amount are controlled the drive unit of described needle-thread tensioning control device and the controlling organization that increases and decreases described line tension.
2. conveying sewing machine up and down according to claim 1 is characterized in that:
Set mechanism with the thread tension setting value that can set corresponding pleat containing amount; Described controlling organization, corresponding pleat containing amount is controlled described needle-thread tensioning control device, makes it provide the line tension of the setting value of setting by described set mechanism.
3. conveying sewing machine up and down according to claim 1 and 2 is characterized in that:
Have and detect the position of rotation testing agency make the machine spindle position of rotation that eedle moves back and forth; Described controlling organization, corresponding to the detected position of rotation of described position of rotation testing agency, control the line tension that described needle-thread tensioning control device provides suture.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP200127071 | 2001-02-02 | ||
| JP2001027071 | 2001-02-02 | ||
| JP2001379877 | 2001-12-13 | ||
| JP2001379877A JP3836362B2 (en) | 2001-02-02 | 2001-12-13 | Sewing thread tension device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101009840A Division CN101063258B (en) | 2001-02-02 | 2002-02-04 | Thread tension device for sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1369587A CN1369587A (en) | 2002-09-18 |
| CN100406634C true CN100406634C (en) | 2008-07-30 |
Family
ID=26608859
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101009840A Expired - Lifetime CN101063258B (en) | 2001-02-02 | 2002-02-04 | Thread tension device for sewing machine |
| CNB021031908A Expired - Lifetime CN100406634C (en) | 2001-02-02 | 2002-02-04 | Uper and lower conveying sewing machine and thread adjuster |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101009840A Expired - Lifetime CN101063258B (en) | 2001-02-02 | 2002-02-04 | Thread tension device for sewing machine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3836362B2 (en) |
| KR (2) | KR100809165B1 (en) |
| CN (2) | CN101063258B (en) |
| DE (2) | DE10262180B4 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007202679A (en) * | 2006-01-31 | 2007-08-16 | Juki Corp | Thread tension device of sewing machine |
| JP2007202833A (en) | 2006-02-02 | 2007-08-16 | Juki Corp | Thread tension device of sewing machine |
| JP2008036192A (en) * | 2006-08-08 | 2008-02-21 | Brother Ind Ltd | Thread tension guide of sewing machine |
| JP2008148833A (en) * | 2006-12-15 | 2008-07-03 | Brother Ind Ltd | Sewing machine |
| JP5271744B2 (en) * | 2009-02-16 | 2013-08-21 | Ｊｕｋｉ株式会社 | Sewing thread tension device |
| DE202012100110U1 (en) | 2011-01-12 | 2012-02-27 | Xi'an Typical Europe Gmbh | Upper thread tensioner |
| CN102061577B (en) * | 2011-01-21 | 2013-04-10 | 佛山市源田床具机械有限公司 | Turntable upper thread supply system of quilting embroidery machine |
| JP2017192573A (en) | 2016-04-21 | 2017-10-26 | Juki株式会社 | Thread tension device of sewing machine |
| CN106637727B (en) * | 2016-11-30 | 2022-03-04 | 西安标准工业股份有限公司 | Electronic control wire tension upper thread end stabilizing mechanism and control method thereof |
| JP6995474B2 (en) * | 2016-12-19 | 2022-01-14 | 株式会社ジャノメ | sewing machine |
| CN107988723B (en) * | 2017-12-30 | 2023-07-28 | 舒普智能技术股份有限公司 | Device for automatically adjusting suture tension of sewing machine |
| CN107956050A (en) * | 2017-12-30 | 2018-04-24 | 宁波舒普机电股份有限公司 | A kind of tension disk of automatic tension adjusting |
| DE102018207426A1 (en) * | 2018-05-14 | 2019-11-14 | Dürkopp Adler AG | Thread tensioning device for a machine |
| KR102460783B1 (en) | 2020-12-11 | 2022-10-28 | 김기석 | Automatic adjustment device of upper thread tension for the sewing machine |
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| DE2809848C2 (en) * | 1977-03-07 | 1983-01-05 | Janome Sewing Machine Co., Ltd., Tokyo | Electronically controlled pattern sewing machine with thread tensioning device |
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- 2001-12-13 JP JP2001379877A patent/JP3836362B2/en not_active Expired - Lifetime
-
2002
- 2002-01-28 KR KR1020020004732A patent/KR100809165B1/en active IP Right Grant
- 2002-02-02 DE DE10262180.2A patent/DE10262180B4/en not_active Expired - Fee Related
- 2002-02-02 DE DE10204237A patent/DE10204237B4/en not_active Expired - Fee Related
- 2002-02-04 CN CN2007101009840A patent/CN101063258B/en not_active Expired - Lifetime
- 2002-02-04 CN CNB021031908A patent/CN100406634C/en not_active Expired - Lifetime
-
2007
- 2007-10-25 KR KR1020070107654A patent/KR100850385B1/en not_active IP Right Cessation
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| JPH0337958B2 (en) * | 1985-09-04 | 1991-06-07 | Brother Ind Ltd | |
| JPH0466598B2 (en) * | 1987-10-31 | 1992-10-23 | Juki Kk | |
| CN1271034A (en) * | 1999-04-20 | 2000-10-25 | 重机公司 | Sewing machine thread regulator controlled by solenoid valve |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070111425A (en) | 2007-11-21 |
| DE10204237A1 (en) | 2002-08-22 |
| DE10204237B4 (en) | 2010-02-11 |
| KR100809165B1 (en) | 2008-02-29 |
| DE10262180B4 (en) | 2018-11-15 |
| CN101063258A (en) | 2007-10-31 |
| KR100850385B1 (en) | 2008-08-04 |
| CN1369587A (en) | 2002-09-18 |
| JP2003181182A (en) | 2003-07-02 |
| CN101063258B (en) | 2012-04-04 |
| KR20020066963A (en) | 2002-08-21 |
| JP3836362B2 (en) | 2006-10-25 |
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