CN101046040B - Wire clamping device for keyhole sewing machine - Google Patents
Wire clamping device for keyhole sewing machine Download PDFInfo
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- CN101046040B CN101046040B CN2007100917260A CN200710091726A CN101046040B CN 101046040 B CN101046040 B CN 101046040B CN 2007100917260 A CN2007100917260 A CN 2007100917260A CN 200710091726 A CN200710091726 A CN 200710091726A CN 101046040 B CN101046040 B CN 101046040B
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Abstract
A movable bar is fixed on body frame of the sewing machine shell with a guide mechanism, and the movable bar can be rotated and lifted in horizontal face. The front end bar is supported on the front end of the movable, a wire clamping device is arranged at front end of the front end bar extending to the sewing needle. A rotation angle adjusting mechanism adjusting the rotation angle of the movable bar relative to the body frame is arranged between the body frame and the movable bar. The rotation angle of the movable bar can be adjusted with the rotation angle adjusting mechanism such that left/right direction position of the wire clamping device at rear side of the sewing needle can be simply adjusted. The invention has high production efficiency and can operate various keyhole sewing because the wire clamping device is pre-adjusted according to the kind of the keyhole trace.
Description
Technical field
The present invention relates to a kind of wire-clamping device of button holing sewing machine of the tension disk with upper thread clamping that the rear side that moves to suture needle after the keyhole stitch seam sewing finishing opens and closes, will be from the sewing finishing position extends to suture needle.
Background technology
Button holing sewing machine is a kind of Sewing machines to the seam of lockstitching a border around the buttonhole that is formed by hammer.Button holing sewing machine generally has the wire-clamping device that utilizes the upper thread clamping that tension disk will be from the sewing finishing position extends to suture needle.
Carry out keyhole when seam continuously, wire-clamping device produces action when last sewing procedure finishes, in the end clamping with upper thread of the rear side of suture needle.The upper thread that is held remains to the beginning of making of subsequent processing always.Under this state, when next sewing procedure began, the upper thread that wire-clamping device keeps was drawn out along with the carrying out of making, and can sew up in the stitching of formation.Wire-clamping device continues keeping upper thread, till extract from tension disk naturally the suture end.
In the stitching of keyhole seam, can divide into the stitching that various knottings such as caudal knot knotting, straight line knotting are stitched, the stitching of the seam of not tiing a knot in addition in the sewing finishing part.The sewing finishing position is the left side of keyhole stitch seam at the keyhole of not tiing a knot seam or when having the keyhole seam of caudal knot knotting.The sewing finishing position is the right side of keyhole stitch seam when having the keyhole seam of straight line knotting.The operator regulates the left and right directions position of tension disk according to the kind that has or not knotting, knotting when beginning keyhole seam.
The Japan Patent spy drives the button holing sewing machine that 2002-306881 communique (Japanese Patent ApplicationLaid-Open No.2002-306881 (2002)) put down in writing can form the keyhole stitch seam that has the straight line knotting.This button holing sewing machine has the wire-clamping device that uses the upper thread clamping that tension disk will extend from the sewing finishing position.By making the feeding table move left and right of processing cloth change the left and right directions position of wire-clamping device, can adapt to the keyhole seam that has the straight line knotting.
Open in the button holing sewing machine that the 2002-306881 communique put down in writing the Japan Patent spy, when implementing to have the keyhole seam of straight line knotting, in the time of must and making beginning when sewing finishing the feeding table of processing cloth is moved along left and right directions.Therefore, before and after making, must reserve feeding table and move the required sufficient time, have the problem of production efficiency difference.
Do not need feeding table to move at the keyhole of not tiing a knot seam or when having the keyhole seam of caudal knot knotting.Therefore, the complicated problem of mobile control that has feeding table.
Summary of the invention
The objective of the invention is to, can change the left and right directions position of tension disk simply, can adapt to adjusting with the corresponding clamp of keyhole seam kind position by the rotational angle that is adjusted in the moveable arm that rotates in the horizontal plane.
The wire-clamping device of the button holing sewing machine of technical scheme 1 is used for the upper thread that extends to described suture needle from the sewing finishing position of button holing sewing machine in the rear side clamping of suture needle, it is characterized in that, comprising: be fixed on the body frame on the casing of Sewing machines; Be fixed on the guiding mechanism on the described body frame; Guide the travel mechanism that carries out the rotation in lifting and the horizontal plane by described guiding mechanism; Be fixed on the moveable arm of described travel mechanism lower end; Make described moveable arm carry out the lifting actuator of lifting with respect to described body frame; The front end arm that is bearing in the leading section of described moveable arm, extends to described suture needle side; Be arranged on the tension disk of the extension end of described front end arm; The switching actuator that described tension disk is opened and closed; And regulate the angle of rotation governor motion of described moveable arm with respect to the rotational angle of described body frame.
Use the angle of rotation governor motion, regulate the rotational angle of moveable arm according to the kind of keyhole stitch seam.Can regulate in advance from the left and right directions position of moveable arm leading section by this adjusting to the tension disk of the front end arm front end of suture needle side extension.When keyhole seam finished, along with the down maneuver of lifting actuator, moveable arm descended with the front end arm, and the front end arm rotates and near the rearward position of suture needle.Tension disk arrives the left and right directions position that regulates in advance, follows the action that opens and closes actuator and carries out closed action.The upper thread that extends to suture needle from the sewing finishing position can be reliably by the good tension disk clamping of left and right directions position adjustments.
The wire-clamping device of the button holing sewing machine of technical scheme 2 is characterized in that, described angle of rotation governor motion comprises: be installed in the block on the described body frame with can changing the fore-and-aft direction position; In horizontal plane, be arranged on groove on the described block obliquely with respect to fore-and-aft direction; And from described moveable arm erect shape ground embed in the described groove spool.
The angle of rotation governor motion can be realized by being equipped with this simple formation of axle that is arranged on the block on the body frame and is arranged on the moveable arm.Change the axle of being located on the moveable arm by the front and back position that changes block and embed position in the groove of being located on the block, thereby can easily regulate the rotational angle of moveable arm.Keep the rotational angle of the moveable arm that regulates by the fixed block physical efficiency.
The wire-clamping device of the button holing sewing machine of technical scheme 3,4 is characterized in that, the spring that is used for described moveable arm is risen to lifting position is installed on described guiding mechanism.
When the akinesia of lifting actuator, the spring that is installed on the guiding mechanism rises to lifting position with moveable arm.Thus, moveable arm can not descend suddenly and hinders and make in keyhole seam is implemented.
The wire-clamping device of the button holing sewing machine of technical scheme 5, it is characterized in that, described lifting actuator is fixed on the described body frame, described moveable arm has the hole of the rod member that is used to connect described lifting actuator, described hole is made of slotted hole, when described angle of rotation governor motion was regulated the rotational angle of described moveable arm, this pore volume was permitted the change in location that described moveable arm connects.
The lifting actuator can be removed before the rotational angle of moveable arm is regulated with moveable arm and be connected, and reasonably reconnects after adjusting.Thus, can carry out the influence that not regulated by the rotational angle of moveable arm sleekly by the lifting action of the moveable arm that action produced of lifting actuator.
The wire-clamping device of the button holing sewing machine of technical scheme 6,7 is characterized in that described travel mechanism is arranged on the rearward end of described moveable arm.
Moveable arm is that rotate at the center with the travel mechanism that is located at rearward end.Can strengthen distance, increase the regulating quantity of regulating the tension disk left and right directions position that forms by the rotational angle of moveable arm from the center of rotation of moveable arm to tension disk.Can at random set the magnifying power of regulating quantity according to the position of the angle of rotation governor motion that is in moveable arm center of rotation anterior position.
Description of drawings
Fig. 1 is the stereogram with button holing sewing machine of wire-clamping device of the present invention.
Fig. 2 is the stereogram of wire-clamping device of the present invention.
Fig. 3 is the vertical view of wire-clamping device of the present invention.
Fig. 4 is the front view of wire-clamping device of the present invention.
Fig. 5 is the right view of wire-clamping device of the present invention.
Fig. 6 is the upward view of wire-clamping device of the present invention.
Fig. 7 is the key diagram that the rotational angle of front end arm is regulated.
Fig. 8 is the turned position and retreat the key diagram of turned position of advancing of front end arm.
Fig. 9 is the vertical view that amplifies expression front end arm.
Figure 10 is the key diagram of the shift position of tension disk.
Figure 11 is the key diagram of the left and right sides position adjustments of tension disk.
The position of tension disk and the key diagram of action when Figure 12 is the end of keyhole seam.
Figure 13 is the key diagram of the state of tension disk clamping upper thread.
Figure 14 is the key diagram of the state behind the tension disk clamping upper thread.
The position of tension disk and the key diagram of action when Figure 15 is the beginning of keyhole seam.
Figure 16 is the time diagram that is used to illustrate the tension disk action.
Figure 17 is the vertical view of the wire-clamping device of change form.
The specific embodiment
The present invention will be described in detail below with reference to the accompanying drawing of representing preferable example.
As shown in Figure 1, button holing sewing machine 1 comprises: the base plate 3 in the upside peristome of the support 2 of the rectangular box shape that the top is opened wide, embedding support 2, the column of erectting from the rear portion of base plate 34 and the casing 5 that forwards extends from the top of column 4.
Be provided with the shank 7 that can move up and down in the front end bottom of casing 5.Lower end at shank 7 outstanding below casing 5 is equipped with suture needle 6.Main shaft (not shown) is rotated under the driving of motor of sewing machine.The rotation of main shaft passes to shank 7 by cam mechanism.By this transmission,, shank 7 moves up and down Yi Bian swinging with the regulation amplitude on one side.Main shaft whenever revolves and takes two turns, and shank 7 moves up and down once respectively on left position and right position.
In the bottom of base plate 3, the curved needle seat (not shown) with two loopers is set opposite to each other with shank 7.The rotation of main shaft passes to two loopers of curved needle seat by cam mechanism.By this transmission, compulsory exercise is carried out in moving up and down of looper and shank 7 accordingly.
The rotation of being located at the θ direction CD-ROM drive motor (not shown) of base plate 3 bottoms passes to shank 7 and curved needle seat by gear mechanism.By this transmission, shank 7 rotates around the axle center, and curved needle seat synchronously rotates with shank 7 around the axle of above-below direction.
Dispose the cutting knife that is used to form the round end hole in the bottom of base plate 3, this cutting knife can load and unload at the rear side of curved needle seat.The top of base plate 3 be provided with respect to below cutting knife from above the hammer used of the stamping-out that engages, separate.Hammer moves downwards under from the transmission of the driving mechanism of being located at base plate 3 bottoms, touches the back with cutting knife and form the round end hole on processing cloth.Omitted the diagram of the driving mechanism of described cutting knife, hammer and hammer among Fig. 1.
Upper surface at base plate 3 is provided with the feeding table 8 that is used to dispose processing cloth.Feeding table 8 reaches fore-and-aft direction and moves about the driving lower edge of the left and right directions CD-ROM drive motor of being located at base plate 3 bottoms and fore-and-aft direction CD-ROM drive motor (not shown).
Upper surface at feeding table 8 is provided with the pairing left and right presser feet that keeps processing cloth.Presser feet can be switched between the pushing position of the retreating position of upside and downside by air cylinder driven.Omitted the diagram of described presser feet and cylinder among Fig. 1.
Button holing sewing machine 1 has near the wire-clamping device 10 that the keyhole seam is finished the upper thread clamping of back cut-out the rear of suture needle 6.
As shown in Figure 1, wire-clamping device 10 has the affixed body frame 11 of left surface with the casing 5 of button holing sewing machine 1.As shown in Figure 2, the elevating mechanism 200 that makes the maintaining body 100 that keeps upper thread carry out lifting is installed on body frame 11.Elevating mechanism 200 is provided with the travel mechanism 300 that maintaining body 100 is moved forward and backward.
Maintaining body 100 has tension disk 18a, the 18b that is arranged on to front end arm 16 front ends of right-hand extension.Tension disk 18a, 18b have the front end that extends downwards.The front end of tension disk 18a, 18b is followed the action that opens and closes with cylinder 19 (being equivalent to open and close actuator) and can be opened and closed.
As Fig. 2, shown in Figure 5, body frame 11 is leg-of-mutton plates, and it utilizes a plurality of set bolts (not shown) affixed with the left side wall of casing 5.As shown in Figure 2, moveable arm 12 has: be positioned at body frame 11 belows latter half of 12a and with the front end of latter half of 12a continuously and the first half 12b that after right-hand change direction, forwards extends.
As Fig. 2, shown in Figure 5, be provided with near the axis of guide 13 and the vertical configuration that vertical configuration is erected at the rearward end at the upper surface of the latter half of 12a of moveable arm 12 and be erected at the locational axle 20 that separates with the place ahead of the axis of guide 13.
Back side lower part at body frame 11 left surfaces is fixed with guide cylinder 22 (being equivalent to guiding mechanism).Guide cylinder 22 is the cylindrical shells with circular hole that above-below direction runs through.Moveable arm 12 is by being supported in the circular hole that the axis of guide 13 (being equivalent to travel mechanism) is inserted guide cylinder 22.So, the moveable arm 12 that is supported can along with the axis of guide 13 in the circular hole of guide cylinder 22 rotation and in horizontal plane, rotate, and can follow the axis of guide 13 and carry out lifting along moving of described circular hole.
The lifting of moveable arm 12 is fixed on the left surface substantial middle of body frame 11 by many set bolts 23 with cylinder 14.Lifting has outstanding take-off lever 14a downwards with cylinder 14.The leading section of take-off lever 14a is being connected the latter half of 12a of moveable arm 12 between 20 at the axis of guide 13 and axle.
Lifting is during with cylinder 14 action, and moveable arm 12 is just near the lifting position (with reference to Fig. 2) of body frame 11 and leave between the down position (with reference to Fig. 4, Fig. 5) of body frame 11 and carry out lifting.
As Fig. 2, shown in Figure 5, the axis of guide 13 outstanding protuberance above guide cylinder 22 is provided with the compression spring 24 that the axis of guide 13 is pushed upward.When cylinder 14 akinesias were used in lifting, compression spring 24 utilized elastic force to promote moveable arm 12, holds it in lifting position shown in Figure 2.
Angle of rotation governor motion 15 to the rotational angle that is used to regulate moveable arm 12 describes.
As Fig. 2 to shown in Figure 5, angle of rotation governor motion 15 have the axle 20 that is erected at moveable arm 12 upper surfaces and with this 20 chimeric block 30.
As Fig. 2, shown in Figure 3, block 30 has rectangular shape.As shown in Figure 4, block 30 has the connecting plate 30a that erects along the margo dexter vertical configuration.As Fig. 2, shown in Figure 5, in the installation site of block 30, be to be formed with horizontally extending two slotted hole 11a, 11a on the lower position of body frame 11 first halfs.
As Fig. 2, shown in Figure 3, block 30 has opening at front end, is formed with the gap slot 30b (being equivalent to groove) that tilts with respect to fore-and-aft direction.The inclination of gap slot 30b have more rearward the closer to body frame 11 towards.The axle 20 of moveable arm 12 upper surfaces penetratingly embeds gap slot 30b midway up and down.
Among Fig. 7, represent that block 30 is positioned at forefront and axle 20 embeds the state of gap slot 30b rearward end with solid line.Under this state, when unclamp two trip bolts 31,31, when making block 30 rearward mobile, axle 20 embedded location just moves and leaves body frame 11 to the anterior position of gap slot 30b.Thus, moveable arm 12 is that rotate towards overlooking the clockwise direction of seeing at the center with the axis of guide 13 just, arrives the position shown in the double dot dash line among Fig. 7.Under this state, when unclamp two trip bolts 31,31, when making block 30 forwards mobile, moveable arm 12 arrives the position shown in the solid line among Fig. 7 towards counterclockwise rotating.
As shown in Figure 6, lifting is connected with the hole 12c that bends to circular arc that is located at moveable arm 12 with the leading section of the take-off lever 14a of cylinder 14.When utilizing angle of rotation governor motion 15 to regulate the rotational angle of moveable arm 12, remove the connection of take-off lever 14a leading section in advance.
As shown in Figure 3, the front end arm 16 that is supported in moveable arm 12 front ends has the flat shape of " L " word shape.As Fig. 4, shown in Figure 5, be connected with the bolster 32 that extends downwards at the front end of moveable arm 12.Bolster 32 is connected with the bight of the L word shape of front end arm 16, rotatably support front end arm 16 in horizontal plane.
As Fig. 5, shown in Figure 6, front and back are fixed on by trip bolt 33 with cylinder 17 on the front side lower surface of latter half of 12a of moveable arm 12.Use the take-off lever 17a of cylinder 17 to be connected with the rearward end of the 1st arm 16a that rearward extends of front end arm 16 to right-hand outstanding front and back.
Position to suture needle 6 is crooked downwards halfway towards the 2nd arm 16b of the front end arm 16 of right-hand extension.The upper end of the right part of the 2nd arm 16b and tension disk 18a is affixed.The upper end of this tension disk 18a is provided with the support 18c of the flat shape with " U " word shape.Between the opposite side of support 18c, stride and be provided with bolster 35.
Bolster 35 is supporting tension disk 18b at the above-below direction pars intermedia of tension disk 18b.The elastic force that utilization is installed in the helical spring (not shown) on the bolster 35 with the bottom of tension disk 18b to the pushing of the bottom of tension disk 18a.
Open and close with cylinder 19 affixed with the leading section of front end arm 16.The front end that opens and closes the take-off lever 19a that uses cylinder 19 contacts from the upper end of left with tension disk 18b.When opening and closing with cylinder 19 actions, take-off lever 19a promotes the upper end of tension disk 18b, the bottom that becomes tension disk 18b from the end portion of tension disk 18a from open configuration (with reference to Fig. 2, Fig. 4, Fig. 6).When opening and closing when being failure to actuate with cylinder 19, become described helical spring the bottom of tension disk 18b is pressed to the closure state of tension disk 18a bottom, can be with upper thread 41 clampings (with reference to Figure 14).
When forward motion was carried out with cylinder 17 in front and back, take-off lever 17a promoted the rearward end of the 1st arm 16a, and front end arm 16 turns to the turned position of advancing that double dot dash line is represented among Fig. 9, Figure 10.Be located at before tension disk 18a, the 18b of front end arm 16 front ends and then near the rear side of suture needle 6.
When backward movement was carried out with cylinder 17 in front and back, take-off lever 17a spurred the rearward end of the 1st arm 16a, and front end arm 16 turns to the turned position that retreats that solid line is represented among Fig. 9, Figure 10.Tension disk 18a, the 18b that is located at front end arm 16 front ends retreats and separates from the rear side of suture needle 6.
Before and after with the rear end of cylinder 17 from the 1st arm 16a that extends to bolster 32 rears of left push-pull anterior end arm 16.Thus, as shown in figure 10, tension disk 18a, the 18b that is located at front end arm 16 front ends is positioned at and more keeps right when retreating the turned position being positioned at the turned position time ratio that advances.
Below with reference to Figure 11 to Figure 16 the effect of wire-clamping device 10 is described.
What Figure 11 represented is the state that has the round end keyhole stitch seam 40A sewing finishing of straight line knotting 40a.The operator regulates the left and right directions position of tension disk 18a, 18b by operation angle of rotation governor motion 15.Particularly, the upper thread 41 for clamping is extended to suture needle 6 from the sewing finishing position is in the position shown in the solid line among Figure 11.When making round end keyhole stitch seam that has caudal knot knotting or the round end keyhole stitch seam of not tiing a knot, with the left and right directions position adjustments of tension disk 18a, 18b to position that the double dot dash line among Figure 11 is represented.
As mentioned above, thus the position adjustments of tension disk 18a, 18b is block 30 to be moved forward and backward change axle 20 and carry out with the chimeric position of gap slot 30b by unclamping trip bolt 31,31.The axis of guide 13 of the center of rotation of formation moveable arm 12 and the distance between the axle 20 are less than the distance between tension disk 18a, 18b and the axis of guide 13.Thus, the left and right directions position adjustments amount of tension disk 18a, the 18b of generation is greater than the regulating quantity that is obtained by angle of rotation governor motion 15.
As shown in figure 16, in the making of the round end keyhole stitch seam 40A that has straight line knotting 40a (in the driving of motor of sewing machine) open and close and move with cylinder 19, tension disk 18a, 18b are in deployed position.After the sewing finishing, be after motor of sewing machine stops, lifting is carried out down maneuver with cylinder 14, moveable arm 12 descends.
As shown in figure 16, then tangent mechanism (not shown) action begins to cut off upper thread 41.Approximately at the same time, forward motion is carried out with cylinder 17 in front and back, and front end arm 16 turns to the turned position of advancing.Tension disk 18a, the 18b of front end arm 16 front ends comes the rear position of suture needle 6 shown in the solid line of Figure 12, become the state of upper thread 41 clampings of will extend to suture needle 6 from the sewing finishing position.
As shown in figure 16, then feeding table 8 rearward moves with predetermined distance, becomes state shown in Figure 13.The upper thread 41 that extends to suture needle 6 from the sewing finishing position is between tension disk 18a, 18b.
As shown in figure 16, then switching becomes non-action status with cylinder 19.As shown in figure 14, tension disk 18a, 18b closure, upper thread 41 clampings that will extend to suture needle 6 from the sewing finishing position.
As shown in figure 16, then backward movement is carried out with cylinder 17 in front and back, turns at the state lower front end arm 16 by tension disk 18a, 18b clamping upper thread 41 and retreats the turned position.And lifting is carried out vertical motion with cylinder 14, and moveable arm 12 is risen.
In order to carry out making of subsequent processing, will process cloth and be placed on the feeding table 8, utilize the presser feet that descends will process cloth and keep.Under this state, feeding table 8 forwards moves and beginning keyhole seam.Tension disk 18a, 18b come the turned position that retreats that solid line is represented among Figure 15, and this position is in the left side of the turned position of advancing shown in the double dot dash line among Figure 15.Thus, the upper thread 41 of tension disk 18a, 18b clamping extends apart from the inboard from the eedles of making the starting position and passing the 40b of foot of round end keyhole stitch seam 40A, thereby can reliably upper thread 41 be sewed up in the stitching of the 40b of foot.
In wire-clamping device 10, the angle of rotation governor motion 15 of being located at body frame 11 left surfaces by operation changes the rotational angle of moveable arm 12, can easily regulate the position, the left and right sides of tension disk 18a, 18b.Thus, can adapt to the various keyholes seam of different knotting forms, use the tension disk 18a, the 18b that are adjusted to correct position can be reliably with upper thread 41 clampings of extending to suture needle 6 from the sewing finishing position by shirtsleeve operation.
Angle of rotation governor motion 15 has the gap slot 30b that makes the block 30 that the is fixed in body frame 11 simple formation chimeric with the axle 20 of being located at moveable arm 12 upper surfaces.The rotational angle of moveable arm 12 is regulated and can be implemented by unclamping the simple operations that trip bolt 31,31 moves forward and backward block 30.When block 30 moves forward and backward, have the chimeric position generation left and right directions variation of gap slot 30b with the axle 20 of gentle dip degree with respect to fore-and-aft direction, can regulate the rotational angle of moveable arm 12 with axle 20.
The rotational angle of the moveable arm 12 that regulates can fixedly be maintained block 30 by the fastening of trip bolt 31,31.As Fig. 2, shown in Figure 5, axle 20 runs through gap slot 30b up and down, and is outstanding to the top of block 30.Thus, moveable arm 12 can carry out lifting under the state of keeping the rotational angle that regulates, and tension disk 18a, 18b are moved to the clamp position.
The axis of guide 13 that moveable arm 12 is supported in lifting freely is provided with the compression spring 24 that is applied with thrust upward.Thus, even, also can utilize the elastic force of compression spring 24 that moveable arm 12 is remained on lifting position for example stopping because of gas-pressurized supplying with when making lifting with cylinder 14 akinesias.So, can avoid tension disk 18a, 18b to descend suddenly and hinder the operation of making on the feeding table 8.
The lifting that makes moveable arm 12 liftings is with the hole 12c of the leading section of the take-off lever 14a of cylinder 14 curved shape by having circular arc and be connected with moveable arm 12.Thus, when using 15 pairs of moveable arms of angle of rotation governor motion 12 to carry out the rotational angle adjusting, move along hole 12c, can keep the connection status of lifting, can carry out the lifting action of moveable arm 12 sleekly with cylinder 14 and moveable arm 12 by making link position.
So, by order lifting is moved separately with cylinder 19 with cylinder 17 and switching with cylinder 14, front and back front end arm 16 is turned to the turned position of advancing with regulation.Thus, can make the tension disk 18a, the 18b that are in open configuration promptly move to the clamp position at suture needle 6 rears.
Angle of rotation governor motion 15 is arranged on the front side of the axis of guide 13.So, according to the distance of the axis of guide 13, can at random set the magnifying power of the left and right directions position adjustments amount of tension disk 18a, 18b with respect to the rotational angle regulating quantity of moveable arm 12 with angle of rotation governor motion 15.Thus, with respect to the device of realizing the same adjustment amount, can realize miniaturization.
The change form that has changed above-mentioned example is partly made an explanation.
1) as shown in figure 17, also angle of rotation governor motion 15 can be configured in the rearward end of moveable arm 12, the position that the axis of guide 13 is arranged on angle of rotation governor motion 15 the place aheads constitutes wire-clamping device 10A.
2) as shown in figure 17, but be located at block 30 gap slot 30b inclination also more rearward more away from body frame 11 towards.
3) the gap slot 30b that is located at block 30 is not limited to the groove of the linearity shown in the example, also the groove of curve-like bending.
4) groove of being located at block 30 is not limited to the gap slot 30b that the front end at block 30 shown in the example has opening, also with the groove of the hole shape of front end and back-end closure.
5) be arranged on the hole 12c on the moveable arm 12 with cylinder 14 so long as can allow the shape that link position changes and get final product in order to connect lifting.For example can adopt the hole of the long hole shape of wide cut, large diameter ellipse or circular hole.
6) guiding mechanism that is fixed in body frame 11 is not limited to the guide cylinder 22 shown in the example, can be other suitable formations.For example, also can be opposite with example, adopt the axis of guide 13 that above-below direction is extended to be fixed on the body frame 11 and the guide cylinder 22 that will be located at moveable arm 12 is through the formation that supports on the axis of guide 13.This occasion, the axis of guide 13 is equivalent to guiding mechanism, and guide cylinder 22 is equivalent to travel mechanism.
As can be seen, be equipped with the angle of rotation governor motion in the wire-clamping device of button holing sewing machine of the present invention from above detailed description, its rotational angle to the moveable arm that liftable also can rotate in horizontal plane is regulated.Thus, can regulate the left and right directions position of clamper simply according to the kind generic operation angle of rotation governor motion of keyhole stitch seam.The tension disk that the left and right directions position adjustments is good can be accepted reliably from the sewing finishing position upper thread that extends to suture needle, can be promptly with its clamping.Thus, can both be rapidly and for various forms of keyholes seam reliably with the upper thread clamping, promptly carry out the transition to making of subsequent processing, can enhance productivity.
Claims (7)
1. the wire-clamping device of a button holing sewing machine is used for the upper thread that extends to described suture needle from the sewing finishing position of button holing sewing machine in the rear side clamping of suture needle, it is characterized in that, comprising:
Be fixed on the body frame on the casing of Sewing machines;
Be fixed on the guiding mechanism on the described body frame;
Guide the travel mechanism that carries out the rotation in lifting and the horizontal plane by described guiding mechanism;
Be fixed on the moveable arm of described travel mechanism lower end;
Make described moveable arm carry out the lifting actuator of lifting with respect to described body frame;
The front end arm that is bearing in the leading section of described moveable arm, extends to described suture needle side;
Be arranged on the tension disk of the extension end of described front end arm;
The switching actuator that described tension disk is opened and closed; And
Regulate the angle of rotation governor motion of described moveable arm with respect to the rotational angle of described body frame.
2. the wire-clamping device of button holing sewing machine as claimed in claim 1, it is characterized in that described angle of rotation governor motion comprises: be installed in block on the described body frame with can changing the fore-and-aft direction position, in horizontal plane, be arranged on the groove on the described block obliquely with respect to fore-and-aft direction and the described groove of embedding erect from described moveable arm in axle.
3. the wire-clamping device of button holing sewing machine as claimed in claim 1 is characterized in that, the spring that is used for described moveable arm is risen to lifting position is installed on described guiding mechanism.
4. the wire-clamping device of button holing sewing machine as claimed in claim 2 is characterized in that, the spring that is used for described moveable arm is risen to lifting position is installed on described guiding mechanism.
5. as the wire-clamping device of each described button holing sewing machine in the claim 1 to 4, it is characterized in that, described lifting actuator is fixed on the described body frame, described moveable arm has the hole of the rod member that is used to connect described lifting actuator, described hole is made of slotted hole, when described angle of rotation governor motion was regulated the rotational angle of described moveable arm, this pore volume was permitted the change in location that described moveable arm connects.
6. as the wire-clamping device of each described button holing sewing machine in the claim 1 to 4, it is characterized in that described travel mechanism is arranged on the rearward end of described moveable arm.
7. the wire-clamping device of button holing sewing machine as claimed in claim 5 is characterized in that, described travel mechanism is arranged on the rearward end of described moveable arm.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006098251 | 2006-03-31 | ||
| JP2006-098251 | 2006-03-31 | ||
| JP2006098251A JP2007268013A (en) | 2006-03-31 | 2006-03-31 | Thread retainer of buttonholing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101046040A CN101046040A (en) | 2007-10-03 |
| CN101046040B true CN101046040B (en) | 2011-11-09 |
Family
ID=38671422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100917260A Active CN101046040B (en) | 2006-03-31 | 2007-03-29 | Wire clamping device for keyhole sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2007268013A (en) |
| CN (1) | CN101046040B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016123621A (en) * | 2014-12-26 | 2016-07-11 | ブラザー工業株式会社 | Sewing machine and control method for sewing machine |
| CN107881676B (en) * | 2017-12-19 | 2023-03-21 | 宁波双玉机电制造有限公司 | Upper thread clamping mechanism and embroidery machine adopting same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1342801A (en) * | 2000-09-08 | 2002-04-03 | 高林股份有限公司 | Upper thread cutter of sewing machine |
| CN1381626A (en) * | 2001-04-16 | 2002-11-27 | 重机株式会社 | Buttonhole machine |
| CN1448565A (en) * | 2002-04-02 | 2003-10-15 | 重机公司 | Top thread holding device for sewing machine |
| CN1459525A (en) * | 2002-05-23 | 2003-12-03 | 高林股份有限公司 | Wire hooking and clamping device of sewing machine |
-
2006
- 2006-03-31 JP JP2006098251A patent/JP2007268013A/en active Pending
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2007
- 2007-03-29 CN CN2007100917260A patent/CN101046040B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1342801A (en) * | 2000-09-08 | 2002-04-03 | 高林股份有限公司 | Upper thread cutter of sewing machine |
| CN1381626A (en) * | 2001-04-16 | 2002-11-27 | 重机株式会社 | Buttonhole machine |
| CN1448565A (en) * | 2002-04-02 | 2003-10-15 | 重机公司 | Top thread holding device for sewing machine |
| CN1459525A (en) * | 2002-05-23 | 2003-12-03 | 高林股份有限公司 | Wire hooking and clamping device of sewing machine |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2002-306881A 2002.10.22 |
| JP特开2003-53081A 2003.02.25 |
| JP特开平9-173675A 1997.07.08 |
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| Publication number | Publication date |
|---|---|
| JP2007268013A (en) | 2007-10-18 |
| CN101046040A (en) | 2007-10-03 |
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