CN100417760C - Needle cloth-feeding sewing machine - Google Patents
Needle cloth-feeding sewing machine Download PDFInfo
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- CN100417760C CN100417760C CNB021503095A CN02150309A CN100417760C CN 100417760 C CN100417760 C CN 100417760C CN B021503095 A CNB021503095 A CN B021503095A CN 02150309 A CN02150309 A CN 02150309A CN 100417760 C CN100417760 C CN 100417760C
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- cloth
- feeding
- shank
- needle
- shaketable
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Abstract
A needle feeding sewing machine has a feed dog 23 operatively connected to a vertical feed shaft 12 and a horizontal feed shaft 17 and making four-way feeding movements; a needle feed shaft 24 causing the needle- bar oscillating stand to oscillate in cloth feed direction; and switching means 27, 28 and 28a for switching between the needle feed and the low feed by changing the connection between the needle feed shaft and the horizontal feed shaft. A first engagement member 5b is provided on the needle-bar oscillating stand 5, and a first control member 33 is provided for controlling the movement of the engagement member in the cloth feed direction when the needle feed is not working. The needle feeding sewing machine reduces the backlash of a needle-bar oscillating stand during a low feed, and capable of supplying stable stitches without sewing errors such as skip stitches, nor causing deformation of the needle-bar oscillating stand.
Description
Technical field
The present invention relates to a kind ofly shake the Needle cloth-feeding Sewing machines that carries out work feed along cloth feeding direction by the eedle that makes Sewing machines.
Background technology
As former Needle cloth-feeding Sewing machines, for example as shown in figure 14 the special permission No. 2682346 in disclosed Sewing machines.In this Sewing machines shown in Figure 14, have make shank 7 with turning cylinder 80A be the center Needle cloth-feeding mechanism (shank shaketable 80, shank shake galianconism 81, Needle cloth-feeding axle 24) of shaking, as the horizontal cloth pushing shaft 17 of Needle cloth-feeding drive source, be fixed on shank on this horizontal cloth pushing shaft 17 and shake and crank arm 82, shank is shaken 82 the attaching parts 83 that above-mentioned Needle cloth-feeding axle 24 is given in transmission of shaking of cranking arm, the driving by above-mentioned horizontal cloth pushing shaft 17 makes shank 7 shake along cloth feeding direction.
In addition, known have in order to form do not carry out Needle cloth-feeding and only carry out the state of work feed and the mechanism that stops the motion of above-mentioned Needle cloth-feeding by feed dog.For example, as the Needle cloth-feeding shut-down mechanism, as shown in figure 15, above-mentioned shank shake crank arm 82 with the connecting portion of attaching parts 83, be provided with by be threaded in shank shake the guide finger 84 of cranking arm on 82 and the slide unit that can on guide finger 84, slide up and down 85 that constitute, can slide and adjust the slide mechanism of attaching parts 83 positions.Above-mentioned attaching parts 83 are installed on the slide unit 85 rotationally.
In Figure 15, when Needle cloth-feeding by making attaching parts 83 be positioned at the top position of guide finger 84 and fixing, with away from shaking the Needle cloth-feeding amount that center (horizontal cloth pushing shaft 17) obtains stipulating with screw 86.In addition, when following feeding as shown in figure 16, attaching parts 83 slips are moved to the central axis 17L of horizontal cloth pushing shaft 17 and use screw 86 fixing, so give attaching parts 83 and shank head motion 80,81 and 24 transmission of shaking of horizontal cloth pushing shaft 17, it is zero making the Needle cloth-feeding amount.
The horizontal cloth pushing shaft 17 by shaking drive source in such conduct and the conversion of Needle cloth-feeding state between the attaching parts 83 and work feed state can stop the motion of shank shaketable 80 on cloth feeding direction when feeding down.
In Needle cloth-feeding Sewing machines as described in above-mentioned structure, the rocking of each contact portion 87,88,89 from horizontal cloth pushing shaft 17 to shank shaketable 80 (chimeric tolerance), when descending feeding, become rocking of shank shaketable 80, promptly become rocking of shank 7, make the position of eedle and rotating shuttle concern incorrect and phenomenons poor stitching qualitys such as generation wire jumper.
In order to limit rocking of such shank shaketable 80, known have being provided with U-lag 90a and being provided with the limiting part 90 that is fixed in the head of sewing machine portion 2 and being positioned at shank shaketable 5 tops and along the mechanism of the outstanding junction surface 5a of cloth feeding direction as shown in figure 17.It has by so that the chimerism of this junction surface 5a and U-lag 90a is screwed the structure of rocking (play when shank shakes) on cloth feeding direction and perpendicular direction of shank shaketable 5 when being limited in feeding down on shank shaketable 5 to limiting part 90.
But, because limiting part 90 is screwed on shank shaketable 5, thus because of the existence in gap between limiting part 90 and the shank shaketable 5, with screw when fastening shank shaketable 5 distortion can be arranged slightly.Though shank 7 is by two bearings of upper and lower settings on shank shaketable 5, but produce the decentraction (center of metal (upper produces skew) of above-mentioned metal (upper as mentioned above owing to the distortion of shank shaketable 5, its result is twisted shank 7, produces the abrasion deformation of shank 7.
Summary of the invention
The purpose of this invention is to provide a kind of Needle cloth-feeding Sewing machines, can reduce rocking of when following feeding shank shaketable 5, and prevent the abrasion deformation of shank 7.
For achieving the above object, Needle cloth-feeding Sewing machines provided by the invention has: rotatably be supported on go up spool (1) in the head of sewing machine; Shake the shank shaketable (5) that is supported on freely on the fulcrum circumference parallel with last axle along cloth feeding direction; The shank that moves up and down and be supported on freely on the shank shaketable and move up and down with last axle interlock; Be supported on the cloth pushing shaft up and down (12) in the Sewing machines board rotationally; Be supported on the horizontal cloth pushing shaft (17) in the Sewing machines board rotationally; The motion of last axle is passed to the drive disk assembly (10,13,19) of cloth pushing shaft and horizontal cloth pushing shaft up and down; Carry out the feed dog of four feed motions by being connected with cloth pushing shaft and horizontal cloth pushing shaft up and down; The Needle cloth-feeding axle (24) that the shank shaketable is shaken along cloth feeding direction; With the switching mechanism (27 of carrying out the conversion of Needle cloth-feeding and following feeding by the connecting state that changes Needle cloth-feeding axle and horizontal cloth pushing shaft, 28,28a), it is characterized in that, be provided with: along with crisscross the 1st attachment (5b) that are arranged on the described shank shaketable of cloth feeding direction; Be arranged on the 2nd attachment (5a) on the described shank shaketable along cloth feeding direction; The 2nd limiting part (31), be fixed on the head of sewing machine frame, cooperate with described the 2nd attachment, limit with the vertical direction of cloth feeding direction on rock engage make restriction to the moving of direction of the cloth feeding direction quadrature of described second attachment; The 1st limiting part (33), can be with respect to described the 2nd limiting part, remain on Needle cloth-feeding and do not engage and make restriction to the mobile active position of the cloth feeding direction that engages with described first attachment with remove the not active position of described joint as the time spent.
Description of drawings
Fig. 1 is the stereogram of expression according to the major part of Needle cloth-feeding Sewing machines one embodiment of the present invention.
Fig. 2 is the stereogram of the major part of present embodiment.
Fig. 3 is the stereogram of the major part of present embodiment.
Fig. 4 is the stereogram of the major part of present embodiment.
What Fig. 5 represented is the major part of the shank shaketable and the 2nd limiting part of present embodiment, (A) is stereogram, (B) is cutaway view.
Fig. 6 is the shank shaketable of expression present embodiment and the exploded perspective view of the 1st and the 2nd limiting part.
Fig. 7 is the shank shaketable of expression present embodiment and the stereogram of the 1st and the 2nd limiting part, (A) is by the state of limiting part restriction shank shaketable motion, (B) is the state of being removed the motion of shank shaketable by limiting part.
Fig. 8 is the stereogram of switching mechanism of expression present embodiment, (A) be the state that the Needle cloth-feeding bar is connected with horizontal cloth pushing shaft, (B) is the state of its releasing connection, (C) is and then the Needle cloth-feeding bar is fixed on state on the bar holding member.
What Fig. 9 represented is slider guide platform and the locating shaft of another embodiment, (A) is exploded perspective view, (B) is cutaway view.
What Figure 10 represented is the stereogram of the connecting rod holding member of another embodiment, (A) is the connecting rod holding member of metal plate-like, (B) for being fixed on the connecting rod holding member on the board projection.
Figure 11 is the stereogram of the switching mechanism of another embodiment of expression.
Figure 12 is the stereogram of the holding member of another embodiment of expression, (A) is and the maintaining part of shank decentraction, (B) is the maintaining part of dihedral, (C) is the maintaining part of cylindrical shape.
Figure 13 is the stereogram of the 1st limiting part of another embodiment of expression, they all are to be made of plate member, and (A) for having the example of the circular hole that engages with the 1st junction surface, (B) for having the example of the slotted hole that engages with the 1st junction surface, (C) and (D) be respectively example with the コ font portion that engages with the 1st junction surface, and (D) be installed in rotation on the 2nd limiting part example.
Figure 14 is the stereogram of the Needle cloth-feeding Sewing machines before the expression.
Switching mechanism when Figure 15 is the following feeding of Needle cloth-feeding Sewing machines when Needle cloth-feeding before the expression, the state when being Needle cloth-feeding.
What Figure 16 represented is the switching mechanism of the Figure 15 when descending feeding.
Figure 17 is the limiting part and the shank shaketable of the Needle cloth-feeding Sewing machines before the expression, (A) is exploded perspective view, (B) is cutaway view.
Among the figure: the last axle of 1-, 2-head of sewing machine portion, 5-shank shaketable, 5a-the 2nd attachment, 5b, 5c, 5d, 5e-the 1st attachment, 6-slider guide platform, the 6b-slotted hole, 7-shank, 10,13, the 19-drive disk assembly, 12-is cloth pushing shaft up and down, the horizontal cloth pushing shaft of 17-, 23-feed dog, 24-Needle cloth-feeding axle, 27,28,28a-switching mechanism, 31-the 2nd limiting part, 33-the 1st limiting part, 34-locating shaft, 60-fulcrum.
The specific embodiment
Below, the embodiment of Needle cloth-feeding Sewing machines of the present invention is described.In Fig. 1, in head of sewing machine portion 2, have to be connected with motor (not shown) and to rotate and supported freely go up axle 1, be arranged on mechanism 4 about thread take-up tension lever 3 on axle 1 left part (front end one side of head of sewing machine portion 2) and the shank.In the 2 front end head 2a of head of sewing machine portion, supporting and last 1 parallel rotating axis of rocking (fulcrum) 60 by the bearing 61 that is fixed on the frame.End at this axis of rocking is fixed with shank shaketable 5, and the other end is fixed with slider guide platform 6.On slider guide platform 6, be formed with guiding groove section 6a.
The shank 7 that can move up and down in shank shaketable 5 upper supports, and it is consistent with the center of guiding groove section 6a that slider guide platform 6 is assembled into the axle center that makes shank 7.Shank mechanism 4 up and down is known crank mechanisms, is supporting the upper end of rotating shank connecting rod 8 freely.Be fixed on shank abut 9 on the shank 7 and be connected the lower end of shank connecting rod 8, and with shank up and down mechanism 4 the action interlock and shank 7 is moved up and down.
In Fig. 2, the fixing upper sprocket wheel 10 in the right part (cardinal extremity one side of chain-drive section 2) of last axle 1.In addition, rotate in the Sewing machines board portion 11 support freely with on the parallel cloth pushing shaft up and down 12 of axle 1, about the right part of cloth pushing shaft 12 fixing lower sprocket 13.By hanging over synchronous belt 19 upward axle 1 rotation of cloth pushing shaft 12 transmission up and down between the lower sprocket 10,13.
Fixing eccentric cam 14 on above-mentioned up and down cloth pushing shaft 12, an end of chimeric support level bar 15 on this eccentric cam 14.And the other end of horizon bar 15 is connected on the known cloth feed amount governor motion 16.
In Sewing machines board portion 11, rotate and to support the horizontal cloth pushing shaft 17 parallel freely with cloth pushing shaft up and down 12, on this horizontal cloth pushing shaft 17, fixing an end of the horizontal work feed galianconism 18 that is connected with above-mentioned cloth feed amount governor motion 16.
The rotation of cloth pushing shaft 12 passes to horizontal work feed galianconism 18 by cloth feed amount governor motion 16 with swing movement up and down, and therefore, horizontal cloth pushing shaft 17 shakes synchronously with the rotation of last axle 1.Last lower sprocket 10,13 and synchronous belt 19 have constituted the motion of last axle 1 have been passed to the drive disk assembly of cloth pushing shaft 12 and horizontal cloth pushing shaft 17 up and down.
And drive disk assembly is not limited to belt, also can use connecting rod that the motion of last axle 1 is passed to cloth pushing shaft 12 and horizontal cloth pushing shaft 17 up and down.At this moment, in the present embodiment, make up and down by synchronous belt 19 that cloth pushing shaft 12 carries out full Zhou Xuanzhuan, but cloth pushing shaft 12 and horizontal cloth pushing shaft 17 all are to carry out oscillating motion up and down.In addition, also can pass to cloth pushing shaft 12 up and down to the motion of last axle 1 by the 1st connecting rod, last 1 motion be passed to horizontal cloth pushing shaft 17 by the 2nd connecting rod with two connecting rods that shake with last axle interlock.
In Fig. 3, connect feed dog actuation mechanism 20 up and down at the right-hand member (board front end one side) of cloth pushing shaft 12 up and down, at the fixing cloth pushing table galianconism 21 of the right-hand member of horizontal cloth pushing shaft 17.The fixing cloth pushing table 22 of feed dog 23, the floating embedding of one end is supported on feed dog up and down on the actuation mechanism 20, and the floating embedding of the other end is supported on the cloth pushing table galianconism 21, by feed dog synthetic with the swing movement of horizontal cloth pushing shaft 17 of moving up and down of actuation mechanism 20 up and down, carry out the work feed motion of known formation four feed motions.
In head of sewing machine portion 2, rotate and supporting Needle cloth-feeding axle 24 freely, fixing the 1st Needle cloth-feeding axle galianconism 25 and fixing the 2nd Needle cloth-feeding axle galianconism 26 with screw 26a with screw 25a at the right-hand member (chain-drive section 2 front ends one side) of Needle cloth-feeding axle 24 respectively at left end.
Fixing Needle cloth-feeding galianconism 27 at the right-hand member of horizontal cloth pushing shaft 17, on this Needle cloth-feeding galianconism 27, float the end that Needle cloth-feeding connecting rod 28 is being supported in embedding, and the floating embedding of the other end of Needle cloth-feeding connecting rod 28 is being supported on the 2nd Needle cloth-feeding axle galianconism 26 by connecting rod segmentation screw 28a.
When horizontal cloth pushing shaft 17 shook synchronously with the rotation of last axle 1, shaking by Needle cloth-feeding galianconism 27, Needle cloth-feeding connecting rod 28 and the 2nd Needle cloth-feeding axle galianconism 26 of horizontal cloth pushing shaft 17 passed to Needle cloth-feeding axle 24.Needle cloth-feeding galianconism 27 and Needle cloth-feeding connecting rod 28 have constituted switching mechanism of the present invention.
In Fig. 1 to Fig. 4, the 1st Needle cloth-feeding axle galianconism 25 is connected by connecting rod 29 with slider guide platform 6, and shaking by the 1st Needle cloth-feeding axle galianconism 25 and connecting rod 29 of Needle cloth-feeding axle 24 passed to slider guide platform 6, and slider guide platform 6 is shaken with axis of rocking 60.Therefore, the shank shaketable 5 that is fixed on the axis of rocking is that the center is shaken along cloth feeding direction F with axis of rocking 60 also.
As mentioned above, when 1 rotation of last axle, moving up and down and the synchronized movement of feed dog 23 of shank shaketable 5 and shank 7 carried out along the swing movement of cloth feeding direction (F direction).
Below, the 1st and the 2nd attachment, the 1st and the 2nd limiting part of present embodiment are described according to Fig. 5～Fig. 7.
Top at shank shaketable 5, be provided with junction surface (the 2nd attachment) 5a that protrudes in cloth feeding direction, this junction surface 5a embeds among the U-lag 31a of (cooperation) the 2nd limiting part 31 on being fixed in head of sewing machine portion 2, is limiting shank shaketable 5 rocking on cloth feeding direction and perpendicular direction (swing of the N direction when shank shakes).On the top of shank shaketable 5, be formed with shank 7 concentrics and on shank 7 moves up and down direction outstanding maintaining part (the 1st attachment) 5b.The slot part of the 2nd limiting part 31 (U-lag 31a) has the length of regulation and along cloth feeding direction with form along the vertical direction.Therefore, even shank shaketable 5 shakes when Needle cloth-feeding, the 2nd limiting part also just prevents shank shaketable junction surface 5a rocking on the direction vertical with Needle cloth-feeding, thus the Needle cloth-feeding motion that the shank shaketable is stipulated.
Be formed with along with the 1st limiting part 33 of the outstanding コ font 33a of portion of the vertical direction of cloth feeding direction, one end (cardinal extremity one side) is installed on the 2nd limiting part 31 with screw.The 1st limiting part 33, or shown in Fig. 7 (A), under the state on the maintaining part 5b of shank shaketable 5 (the 1st attachment), be fixed on the 2nd limiting part 31 in that the コ font 33a of portion embed is engaged (cooperations), or shown in Fig. 7 (B), under the コ font 33a of portion and state that maintaining part 5b releasing engages, be fixed on the 2nd limiting part 31.Like this, the 2nd limiting part 31 can remain on position (active position) that the maintaining part 5b that makes the 1st limiting part 33 and shank shaketable 5 engages and the position that contacts its joint (non-working position).
And, as shown in Figure 8, in Sewing machines board portion 11, be provided with connecting rod holding member 32.On this connecting rod holding member 32, be formed with and carry out the negative thread 32a that screw thread combines with connecting rod segmentation screw 28a.
Below, the operation that is transformed into down feeding from Needle cloth-feeding on the Needle cloth-feeding Sewing machines of the embodiment with above structure is described.
At first, unclamp screw 25a, remove the fixing of the 1st Needle cloth-feeding axle galianconism 25 and Needle cloth-feeding axle 24, perhaps unclamp screw 26a, remove the fixing of the 2nd Needle cloth-feeding axle galianconism 26 and Needle cloth-feeding axle 24.
Then, shown in Fig. 8 (B), pull down connecting rod segmentation screw 28a, remove being connected of Needle cloth-feeding galianconism 27 and Needle cloth-feeding connecting rod 28, and shown in Fig. 8 (C), 28 usefulness segmentation screw 28a are fixed on the columniform connecting rod holding member 32 this Needle cloth-feeding connecting rod.Like this, even, can not shake this yet and pass to Needle cloth-feeding axle 24 because of the rotation of last axle 1 is shaken horizontal cloth pushing shaft 17.
Then, make the pin hole on not shown eedle that is installed in shank 7 lower ends and the following feeding needle plate that is located at above the Sewing machines board portion 11 align, the 1st Needle cloth-feeding axle galianconism 25 or the 2nd Needle cloth-feeding axle galianconism 26 are fixed on the Needle cloth-feeding axle 24, remove the fixing of sprocket wheel 13 and cloth pushing shaft 12 up and down then, make moving up and down of when following feeding shank 7 consistent, once more sprocket wheel 13 is fixed on cloth pushing shaft 12 up and down with the time of feed dog 23.So just finished conversion work.
In the present embodiment, as shown in Figure 2, have joint portion A, B, C, D, in the former Sewing machines example, rocking of joint portion like this all is converted into rocking of shank shaketable 5, and (Needle cloth-feeding is not done the time spent) just all becomes rocking of shank 7 when descending feeding.But, in the present embodiment, when descending feeding (Needle cloth-feeding is not done the time spent), shank shaketable 5 is along with the rocking of cloth feeding direction vertical direction N, be restricted with the chimeric of the U-lag 31a of the junction surface 5a of shank shaketable 5 and the 2nd limiting part 31, shank shaketable 5 rocks along cloth feeding direction F's, shown in Fig. 7 (A), by the maintaining part 5b of the コ font 33a of portion of the 1st limiting part 33 and shank shaketable 5 chimeric, the 1st limiting part 33 be fixed on the 2nd limiting part 31 and be restricted.
In addition, when Needle cloth-feeding shown in Fig. 7 (B) make so that maintaining part 5b and the コ font 33a of portion are in not chimeric position this コ font 33a of portion keep out of the way the top position state, the 1st limiting part 33 is fixed on the 2nd limiting part 31.
As mentioned above,, reduced rocking of shank shaketable 5 when following feeding, especially reduced rocking on cloth feeding direction F, can eliminate poor stitching quality such as wire jumper and provide stable stitch according to present embodiment.
In addition, when being converted to feeding down, make the 1st limiting part 33 chimeric, do not resemble shown in Figure 17 with precedent, limiting part being fixed on the shank shaketable 5 with screw with shank shaketable 5.Therefore, shank shaketable 5 can not produce distortion, can provide the reliability that the shank abrasion deformation does not take place high Sewing machines.
More than, be illustrated according to the embodiment of the Needle cloth-feeding Sewing machines of the present invention shown in the figure, but the present invention is not limited to this embodiment, can carry out various changes.For example, as shown in Figure 9, can on slider guide platform 6, form slotted hole 6b, and with the head of sewing machine portion 2 of this slotted hole 6b subtend position on locating shaft 34 is set.Limit rocking of slider guide platform 6 by on this slider guide platform 6, forming the embedding locating shaft 34 that floats among the slotted hole 6b.According to this structure, can reduce rocking of when following feeding slider guide platform 6, therefore can reduce shank shaketable 5 and shank 7 along the rocking of the rotation direction of axis of rocking 60, can provide the reliability that the shank abrasion deformation does not take place high Sewing machines.
In addition, though shown cylindrical configuration as connecting rod holding member 32, but also can be shown in Figure 10 (A) like that, form on the connecting rod holding member 132 of metallic plate system with connecting rod segmentation screw 28a and carry out the negative thread 132a that screw thread combines, and this connecting rod holding member 132 is fixed in the Sewing machines board portion 11.Perhaps, shown in Figure 10 (B) like that, a negative thread 232a who combines with connecting rod segmentation screw 28a implementation screw thread is formed directly on the frame lug boss 232.
In addition, the conversion of feeding downwards, also can be as shown in figure 11, the metallic plate 62 of the screwed hole 62b that is provided with slotted hole 62a and combines with connecting rod segmentation screw 28a implementation screw thread is fixed on the sewing machine frame, and this stationary links 28 is fixed on the metallic plate 62, aligns needle falling point by regulating metallic plate 62 positions.
In addition, can the 1st limiting part 33 be fixed on the 2nd limiting part 31 yet, and directly be fixed in the head of sewing machine portion 2.
And, though shown the columnar maintaining part 5b on the shank shaketable 5 and the example of shank 7 concentrics, also can be resemble Figure 12 (A) (B) shown in (C) not with 5c, 5d, the 5e of shank 7 concentrics.And can be the maintaining part 5d that resembles the dihedral shown in Figure 12 (B).
And, though shown the example that the コ font 33a of portion is set on the thicker sheet material as the 1st limiting part 33, also can adopt the limiting part 133,233,333,433 of sheet metal as shown in Figure 13 (A)～(D).In addition, also can adopt the limiting part that is provided with slotted hole 233a as shown in the figure (A).
And, change the Needle cloth-feeding axle and constitute the switching mechanism that can be exchanged into down feeding by Needle cloth-feeding galianconism 27 and Needle cloth-feeding connecting rod 28 though shown with the connection status of horizontal cloth pushing shaft, employing as the Needle cloth-feeding Sewing machines of the switching mechanism of Figure 14～shown in Figure 16 also applicable to the present invention.
(invention effect)
1 needle cloth-feeding sewing machine according to the present invention is located at described shank shaketable owing to be provided with On the 1st attachment and when Needle cloth-feeding does not act on, limit described attachment and move along cloth-feeding direction The 1st limiting part, so, can reduce rocking of when lower feeding shank shaketable, and can not Make the shank shaketable produce distortion, can eliminate the stitching defect such as wire jumper and provide stable stitch.
2 needle cloth-feeding sewing machine according to the present invention and since be provided be located at along cloth-feeding direction described The 2nd attachment on the shank shaketable and the restriction the 2nd attachment with the cloth-feeding direction vertical direction On the 2nd limiting part of movement, so, can further reduce when lower feeding shank shaketable Rock, thereby can eliminate the stitching defects such as wire jumper and provide stable stitch.
3 Needle cloth-feeding Sewing machines according to the present invention, owing to being fixed on the frame and cardinal extremity one side of described the 1st limiting part, described the 2nd limiting part is installed on the 2nd limiting part, so, be compact structure comparatively, the effect that can obtain saving the space the 1st and the 2nd limiting part is fit.
4 Needle cloth-feeding Sewing machines according to the present invention, be provided with the end that is fixed on described fulcrum, and can shake freely supported slider guide platform along cloth feeding direction with described shank shaketable, the crack was not engaged in the described slotted hole and limited the locating shaft that described slider guide platform moves along cloth feeding direction action time with the slotted hole that forms along described slider guide platform with at Needle cloth-feeding.
Therefore, can reduce rocking of when following feeding shank shaketable, can eliminate poor stitching quality such as wire jumper and provide stable stitch.
Claims (1)
1. Needle cloth-feeding Sewing machines has:
Rotatably be supported on go up spool (1) in the head of sewing machine;
Shake the shank shaketable (5) that is supported on freely on the fulcrum circumference parallel with last axle along cloth feeding direction;
The shank that moves up and down and be supported on freely on the shank shaketable and move up and down with last axle interlock;
Be supported on the cloth pushing shaft up and down (12) in the Sewing machines board rotationally;
Be supported on the horizontal cloth pushing shaft (17) in the Sewing machines board rotationally;
The motion of last axle is passed to the drive disk assembly (10,13,19) of cloth pushing shaft and horizontal cloth pushing shaft up and down;
Carry out the feed dog of four feed motions by being connected with cloth pushing shaft and horizontal cloth pushing shaft up and down;
The Needle cloth-feeding axle (24) that the shank shaketable is shaken along cloth feeding direction;
With by change the switching mechanism that Needle cloth-feeding axle and the connecting state of horizontal cloth pushing shaft carry out the conversion of Needle cloth-feeding and following feeding (27,28,28a),
It is characterized in that, be provided with:
Along with crisscross the 1st attachment (5b) that are arranged on the described shank shaketable of cloth feeding direction;
Be arranged on the 2nd attachment (5a) on the described shank shaketable along cloth feeding direction;
The 2nd limiting part (31) is fixed on the head of sewing machine frame, cooperates with described the 2nd attachment, limits rocking on the direction vertical with cloth feeding direction;
The 1st limiting part (33) can be with respect to described the 2nd limiting part, remains on the active position that engages with described the 1st attachment and removes the not active position of described joint.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001331888A JP3758551B2 (en) | 2001-10-30 | 2001-10-30 | Needle feed sewing machine |
| JP2001331888 | 2001-10-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1417397A CN1417397A (en) | 2003-05-14 |
| CN100417760C true CN100417760C (en) | 2008-09-10 |
Family
ID=19147388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021503095A Expired - Lifetime CN100417760C (en) | 2001-10-30 | 2002-10-30 | Needle cloth-feeding sewing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3758551B2 (en) |
| CN (1) | CN100417760C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294495B (en) * | 2014-09-05 | 2016-06-08 | 宁波瑞铭机械有限公司 | A kind of horizontal transmission shaft of sewing machine and working method thereof |
| CN105568577A (en) * | 2015-12-28 | 2016-05-11 | 常熟市古里镇淼泉利达机械厂 | Crocheting device of sewing machine |
| CN115182104A (en) * | 2021-04-02 | 2022-10-14 | 杰克科技股份有限公司 | Feeding thread hooking mechanism capable of being flexibly adjusted and sewing machine |
| CN117512889B (en) * | 2024-01-05 | 2024-04-26 | 泰州增荣特种装备科技有限公司 | High-speed flatcar that knapsack cloth processing was used |
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| JPS63192484A (en) * | 1987-02-04 | 1988-08-09 | ブラザー工業株式会社 | Sewing machine |
| JPS6440086A (en) * | 1987-07-21 | 1989-02-10 | Kochs Adler Ag | Sewing machine having needle rod shaking frame |
| JP2682346B2 (en) * | 1992-08-22 | 1997-11-26 | ブラザー工業株式会社 | Needle feed / lower feed switching device for sewing machines with needle feed function |
| JPH08155174A (en) * | 1994-12-09 | 1996-06-18 | Juki Corp | Needle rod swinging sewing machine |
| CN1222598A (en) * | 1997-10-02 | 1999-07-14 | 重机株式会社 | Needle feeding sewing machine |
| JP2000079290A (en) * | 1998-09-07 | 2000-03-21 | Brother Ind Ltd | Link mechanism for driving power transmission of sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003135875A (en) | 2003-05-13 |
| CN1417397A (en) | 2003-05-14 |
| JP3758551B2 (en) | 2006-03-22 |
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