CN1101867C - Mechanism for regulating height of pay-off teeth - Google Patents
Mechanism for regulating height of pay-off teeth Download PDFInfo
- Publication number
- CN1101867C CN1101867C CN00102206A CN00102206A CN1101867C CN 1101867 C CN1101867 C CN 1101867C CN 00102206 A CN00102206 A CN 00102206A CN 00102206 A CN00102206 A CN 00102206A CN 1101867 C CN1101867 C CN 1101867C
- Authority
- CN
- China
- Prior art keywords
- feeding
- feeding tooth
- camshaft
- height
- feed lifting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/24—Feed-dog lifting and lowering devices
-
- 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
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/30—Details
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
A height adjustable feed dog mechanism comprises a feeding axis 2 linked and turned with the main axis of a sewing machine; a uplifting dog axis 4 linked and turned with the main axis of a sewing machine and parallelly with the feeding axis; a bar frame 56 having a horizontal part 56a and a connecting member 56b extending from the horizontal part, ont end of the horizontal part is connected to the feeding axis, the connecting member is connected to the uplifting dog axis at the lower end; a feed bar supported at the horizontal part. The mechanism futher comprises an eccentric member 58, which is rotated and supported on the connecting member 54 coupling with the uplifting dog axis, and which is rotatedly coupled by the connecting member at the lower part.
Description
Technical field:
The present invention relates to a kind of mechanism that regulates Sewing machines feeding tooth height.
Background technology:
As shown in Figure 6, in common feeding tooth mechanism 1, feeding balance staff 2 and feed lifting rock shaft 4 rotate installation in the mode that is parallel to each other, and with the main shaft of Sewing machines interlocking (not shown).Retainer 6 comprises horizontal component 6a that extends in the horizontal direction and the vertical component 6b that extends in vertical direction, and an end of feeding tooth 8 is installed on horizontal component 6a.By retainer axle 10 and feeding balance staff crank 12, the near-end of horizontal component 6a is attached to feeding balance staff 2, to reach in the horizontal direction, with the synchronous swing of feeding balance staff 2.
Feed lifting fork 14 has the vertical groove 14a that forms within it, with vertical component 6b engagement, and fixing with screw 18.Feed lifting fork 14 makes feeding lift tooth eccentric wheel 16 to be properly mounted on very much on the feed lifting rock shaft 4.The rotation of feed lifting rock shaft 4 by lifting tooth eccentric wheel 16 and feed lifting fork 14 transmissions, swings up and down retainer 6.
Feeding tooth 8 moves on an ellipse track, comprise retainer 6 up and down and side-to-side movement, thereby send into the fabric workpiece with presser feet.(not shown)
With reference to Fig. 8 and 9, each of a pair of hook shuttle saddle device (hook saddle unit) 28 is installed in the both sides of feeding tooth mechanism 1, comprise: hook shuttle saddle 20, hook shuttle axle 22, vertical shaft hook shuttle 24, hook shuttle shaft transmission gear 26, fuel feed pump 27, other parts do not show in the drawings.
Each hook shuttle axle 22 rotates with hook shuttle saddle 20 and connects, and the top of axle 22 is equipped with hook shuttle 24, and is fixed with shaft transmission gear 26 above the axle.Fuel feed pump 27 is connected with hook shuttle saddle 20, gives hook shuttle 24 supplying lubricating oils by a lubrication channel (not shown) that forms in hook shuttle axle 22.
With reference to Figure 10, show another kind of common feeding tooth mechanism, feeding balance staff 32 and feed lifting rock shaft 34 rotate synchronously with the main shaft (not shown) of Sewing machines.Retainer 36 supports feeding tooth 38 at core, and the one end is connected to feeding balance staff 32 by retainer axle 10 and feeding balance staff crank 40, and the other end is connected to feed lifting rock shaft 34 by retainer axle 11 and feed lifting rock shaft crank 42.Feed lifting rock shaft crank 42 and balance staff crank 40 are very short usually with respect to retainer length.
Regulate the height of feeding tooth 8 sometimes according to the type needs of fabric workpiece.Particularly, thin and soft underwear fabric or the like when by 8 feedings of feeding tooth, slides easily, therefore need accurately adjust feeding tooth height.
In feeding tooth shown in Figure 6 mechanism 1, can regulate the height of feeding tooth 8, to reach the effect that slides up and down vertical component 6b along groove 14a by unscrewing the screw 18 that retainer 6 and feed lifting fork 14 are linked together.
Yet, regulate parts, i.e. vertical component 6b and screw 18, between a pair of hook shuttle saddle device 28, as Fig. 8 and shown in Figure 9, furthermore the complex space of the different parts of saddle device 28 more, therefore to regulate operation be very difficult or in fact may.
In addition, structure as described above, because need retainer 6 to move up and down accurately, concerning the operator, the height of accurately regulating feeding tooth 8 hardly may.
Therefore, as the method for the height of regulating feeding tooth 8 practically, as shown in Figure 7,, realize as the scraps of paper by between feeding tooth 8 and retainer 6, inserting the thin slice 30 of suitable thickness.
Under the situation of feeding tooth mechanism 31 shown in Figure 10, with respect to the position of feed lifting rock shaft 34 upper and lower change retainer feed lifting rock shafts 11, will cause feed lifting rock shaft crank 42 at a certain angle α rotate around feed lifting rock shaft 34.The short length of crank 42 makes the α angle become big, has changed the track of feeding tooth 8 simultaneously.
In other words, when in some way, during the Level Change X of feed lifting rock shaft 11, given feeding tooth 38 Level Changes are y, and distance be L1 between retainer axle 10 and the feed lifting rock shaft, between feeding tooth 38 and the retainer axle 10 apart from being L2, then: y=X * L2/L1.In mechanism 31, L2 approximately is 1/2 of L1, and then y also is approximately 1/2 of x.
In addition, when the height change of feed lifting rock shaft 11, the motion of feeding tooth 38 changes not only at above-below direction, and in the horizontal direction.
Summary of the invention:
Therefore, one object of the present invention just provides the mechanism that a kind of feeding tooth height is regulated easily.
Another object of the present invention just provides the mechanism that a kind of feeding tooth height can accurately be regulated.
Further purpose of the present invention just provides a kind of mechanism that movement locus is not subjected to the influence of feeding tooth height adjusting that feeds.
In order to achieve the above object, the invention provides a kind of mechanism for regulating height of pay-off teeth of Sewing machines.This mechanism comprise one with main shaft synchronously the feeding balance staff 2 and the feed lifting rock shaft 4 of rotation, described feed lifting rock shaft and the parallel installation of feeding balance staff, and rotate synchronously with main shaft; Also has a retainer 56, it has a horizontal component 56a who extends in the horizontal direction, a coupling part 56b who continues to extend downwards from horizontal component, and an end of horizontal component is attached to the feeding balance staff, the coupling part links to each other with feed lifting rock shaft, at horizontal component upper support feeding tooth 8.This mechanism further comprises: a camshaft 58, on a link component 54 that connects with feed lifting rock shaft, be rotated support, the coupling part is rotationally coupled on the camshaft, and the turned position of regulating camshaft is fixing then, can regulate the height of feeding tooth.
Preferable is that the above-mentioned horizontal component of retainer supports above-mentioned feeding tooth near having the join domain of coupling part.
In a kind of special structure, above-mentioned Sewing machines is a kind of crosspointer vertical shaft hook shuttle type Sewing machines, and governor motion is installed between the two hook shuttle saddle devices.
Being arranged of best above-mentioned camshaft and above-mentioned two hook shuttle saddle devices than the low side branch.
Description of drawings
Fig. 1 has shown that schematically the present invention has the feeding tooth mechanism of a mechanism for regulating height of pay-off teeth.
Fig. 2 (A) and (B) show the eccentric position of regulating feeding tooth height in embodiments of the present invention respectively.
Fig. 3 is a sketch along the direction of the arrow A in Figure 1, shows the position that is inserted into the feeding tooth mechanism in the crosspointer vertical shaft hook shuttle Sewing machines.
Fig. 4 be along among Fig. 1 along the sketch of arrow B direction, shown with respect to two hook shuttle saddle devices, the position of feeding tooth mechanism.
Fig. 5 has shown that in an embodiment of the present invention the height displacement of feeding tooth is with respect to the correlation of the displacement of camshaft.
Fig. 6 is the schematic diagram of common feeding tooth mechanism.
Fig. 7 has shown the height adjusting of feeding tooth in Fig. 6 mechanism.
Fig. 8 be along among Fig. 6 along the view of arrow A direction, shown the position that is inserted into the feeding tooth mechanism in the crosspointer vertical shaft hook shuttle Sewing machines;
Fig. 9 be among Fig. 6 along the schematic illustration of arrow B, shown position with respect to two hook shuttle saddle device feeding tooth mechanisms.
Sketch of Figure 10 has shown another kind of common feeding tooth mechanism.
The specific embodiment:
One embodiment of the present of invention are with reference to the accompanying drawing explanation that makes an explanation.
With reference to Fig. 1-5, feeding tooth mechanism 51 comprises feeding balance staff 2, feed lifting rock shaft 4 and retainer 56.Balance staff 2 and feed lifting rock shaft 4 rotate by the main shaft (not shown) interlocking with Sewing machines.Retainer 56 has the horizontal component 56a that extends in the horizontal direction, the downward linking portion 56b that extends, and the end of horizontal component 56a supports feeding tooth 8 in the above with holding up.Linking portion 56b is with trickle crooked extension downwards.
The other end of horizontal component 56a is connected on the feeding balance staff 2 by retainer axle 10 and feeding balance staff crank 12, so the swing of feeding balance staff 2 can cause mobile in the horizontal direction retainer 56.
The feeding cam 16 that is fixed on the feed lifting rock shaft 4 is installed in the feed lifting rock shaft crank 54 (Connection Element), and camshaft 58 is installed by rotating than low side of crank 54.The divergent ends of linking portion 56b connects with the two ends coupling of camshaft 58, and axle 58 is rotatable like this.Camshaft 58 is fixed on the crank 54 by trip bolt 60.
Feed lifting rock shaft crank 54 connects with feed lifting rock shaft 4 by feeding cam 16, and therefore, the rotation by feed lifting rock shaft 4 moves down retainer 56 at upper and lower.
Like this, feeding tooth 8 moves along elliptical orbit.
When the height of regulating feeding tooth 8, at first to unscrew screw 60, then, with under the situation of the groove that forms on the camshaft head (not shown) engagement,, after this tighten screw 60 again by suitable angular turn camshaft 58 at screw.If axle 58 eccentric part reaches extreme lower position shown in Fig. 2 (A) by adjusting, then feeding tooth height also can be adjusted to extreme lower position.On the contrary, shown in Fig. 2 (B), the position that allows feeding tooth 8 is at peak at peak in the position of axle 58 eccentric part.
With reference to Fig. 3 and 4, screw 60 and camshaft 58 be installed in hook shuttle saddle device 28 the lower end near, axle 58 operating point (head) and screw 60 outwards are projected into this to installing a side of 28, the result is easy to regulate operation.Say that further these are different with the common sliding type as shown in Fig. 6-9, only the rotation by axle 58 just allows to change feeding tooth height, has caused like this can being easy in a narrow space regulating.
When the relative position between camshaft 58 and the feed lifting rock shaft 4 changed owing to adjusting feeding tooth height, the feeding track of feeding tooth 8 was also along with change.For example, when Sewing machines under static state, when changing crank 54 around balance staff 4 swing certain angle θ along with the position of camshaft 58, swing has caused machine under mode of operation, the change of the feeding track of feeding tooth.The bigger variation in θ angle must cause the bigger variation of feeding track.
In this embodiment, in the mechanism for regulating height of pay-off teeth of feeding tooth mechanism 51, as shown in Figure 5, the interface between crank 54 and the coupling part 56b (axle 58) is along with the vertical displacement that axle 58 rotates is x, the vertical displacement of feeding tooth 8 is y, horizontal range between axle 58 and the retainer axle 10 is L1, and the horizontal range between feeding tooth 58 and the axle 10 is L2, then: y=x * L2/L1, in view of the above, when L1 becomes near L2,, can obtain bigger y with respect to constant x.
In this embodiment, because feeding tooth 8 is supported in the intersection near horizontal component 56a and coupling part 56b, so L1 can approach L2.At this, if the little bending that coupling part 56b forms approaches straight line, then L1 more approaches L2.
Say that further moving up and down of crank 54 is sent to retainer 56 by coupling part 56b in an embodiment, therefore, even pass through the adjusting height of camshaft 58, the feeding tooth also can be moved in the horizontal direction hardly.
According to mechanism for regulating height of pay-off teeth of the present invention, the height of feeding tooth can accurately be regulated by simple operations.
In addition, by near the feeding tooth the coupling part of support level part and vertical component, horizontal range between retainer axle and the camshaft can approach the horizontal range between feeding tooth and the retainer axle, like this, pass through camshaft, with respect to center displacement, it is bigger that the height displacement of feeding tooth can become.
When governor motion is installed to crosspointer vertical shaft hook shuttle type Sewing machines, when being installed between the two hook shuttle saddle devices, camshaft and camshaft is fixed on the Connection Element one tightens separating of screw and two hook shuttle saddle devices than low side.Therefore, screw and camshaft are easy to approaching, and in addition, in narrow space, the simple rotation of camshaft makes adjusting simple to operate, the sliding system difference that this is common.
Claims (4)
1. a mechanism for regulating height of pay-off teeth comprises; A feeding balance staff (2) rotates with the main shaft interlocking of Sewing machines; A feed lifting rock shaft (4) rotates with main shaft interlocking, and with the parallel installation of feeding balance staff; A retainer (56) has a horizontal component (56a) that stretches in the horizontal direction, a linking portion (56b) that continues to extend downwards from horizontal component, and an end and the feeding balance staff of horizontal component are connected, the linking to each other with feed lifting rock shaft than low side of coupling part; A feeding tooth (8) that on horizontal component, is supported;
It is characterized in that, described mechanism also comprises: a Connection Element (54), its swing is connected in feed lifting rock shaft, and the camshaft (58) above it is supported in rotation, the coupling part is being coupled with camshaft rotationally than low side, change its turned position and fixing by camshaft, reach the purpose of regulating feeding tooth height.
2. mechanism for regulating height of pay-off teeth as claimed in claim 1 is characterized in that: described retainer with the connecting portion of coupling part near the above-mentioned feeding tooth of support.
3. mechanism for regulating height of pay-off teeth as claimed in claim 1 is characterized in that: above-mentioned Sewing machines is a crosspointer vertical shaft hook shuttle type Sewing machines; Described mechanism is installed between the two hook shuttle saddle devices.
4. mechanism for regulating height of pay-off teeth as claimed in claim 1 is characterized in that: being installed separately than low side of camshaft and two hook shuttle saddle devices.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP029473/1999 | 1999-02-08 | ||
JP02947399A JP4036353B2 (en) | 1999-02-08 | 1999-02-08 | Feed dog height adjustment mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1270246A CN1270246A (en) | 2000-10-18 |
CN1101867C true CN1101867C (en) | 2003-02-19 |
Family
ID=12277073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN00102206A Expired - Lifetime CN1101867C (en) | 1999-02-08 | 2000-02-04 | Mechanism for regulating height of pay-off teeth |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP4036353B2 (en) |
KR (1) | KR100586266B1 (en) |
CN (1) | CN1101867C (en) |
TW (1) | TW510368U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102304825A (en) * | 2011-08-25 | 2012-01-04 | 中屹机械工业有限公司 | Connecting rod type sleeve joining feeding mechanism |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101629362B (en) * | 2009-08-10 | 2012-03-28 | 浙江宝石机电股份有限公司 | Novel pants headset front feeding mechanism |
CN105088546B (en) * | 2015-09-30 | 2018-11-30 | 杰克缝纫机股份有限公司 | A kind of adjustment structure on sewing machine between feeding tooth and needle plate |
CN105088548A (en) * | 2015-09-30 | 2015-11-25 | 杰克缝纫机股份有限公司 | Sewing machine feeding mechanism |
JP6679158B2 (en) * | 2015-10-30 | 2020-04-15 | 蛇の目ミシン工業株式会社 | Feed dog adjusting mechanism and sewing machine equipped with the adjusting mechanism |
CN106948095B (en) * | 2017-05-16 | 2019-08-13 | 杰克缝纫机股份有限公司 | A kind of anti-staggered floor device of sewing and overedger |
TWI684689B (en) * | 2018-08-01 | 2020-02-11 | 曾賢長 | Feeding gear stabilizing mechanism of sewing machine |
CN110820179B (en) * | 2018-08-14 | 2021-09-07 | 曾贤长 | Cloth feeding tooth stabilizing mechanism of sewing machine |
DE102018120752B4 (en) * | 2018-08-24 | 2023-03-23 | Hsien-Chang Tseng | Sewing machine specific cloth feed teeth stabilizer |
CN109594209B (en) * | 2018-12-21 | 2020-09-29 | 季华实验室 | Sewing machine with tooth frame height adjusting device |
CN109440307B (en) * | 2018-12-29 | 2023-06-20 | 杰克科技股份有限公司 | Height adjusting mechanism of feed dog of sewing machine and using method thereof |
CN111607912B (en) * | 2019-02-26 | 2022-07-05 | 杰克科技股份有限公司 | Feeding tooth height adjusting mechanism of sewing machine |
CN109706635B (en) * | 2019-03-12 | 2024-08-06 | 陈春和 | Hand-held sealing machine presser foot |
CN111748919B (en) * | 2019-03-29 | 2022-06-21 | 杰克科技股份有限公司 | Tooth rack height adjusting mechanism of lockstitch sewing machine |
CN111926471B (en) * | 2019-05-13 | 2023-09-05 | Juki株式会社 | Needle feeding sewing machine |
JP7356260B2 (en) * | 2019-05-17 | 2023-10-04 | Juki株式会社 | needle feed sewing machine |
CN112626725B (en) * | 2019-09-24 | 2022-08-23 | 杰克科技股份有限公司 | Feeding tooth lifting tooth height adjustable mechanism and sewing machine |
CN112853633B (en) * | 2019-11-28 | 2022-07-05 | 杰克科技股份有限公司 | Feed lifting mechanism with adjustable feed lifting height and flat seaming machine |
CN110983642B (en) * | 2019-12-16 | 2021-09-28 | 杰克缝纫机股份有限公司 | Feed dog lower supply mechanism and sewing machine |
CN111197202B (en) * | 2020-03-19 | 2021-06-29 | 杰克缝纫机股份有限公司 | Feed lifting shaft assembly and sewing machine with same |
CN115198454B (en) * | 2021-04-09 | 2023-08-18 | 杰克科技股份有限公司 | Sewing machine |
CN117265781B (en) * | 2023-11-20 | 2024-02-02 | 江苏苏骏纺织有限公司 | Feeding device on sewing machine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB696171A (en) * | 1950-09-14 | 1953-08-26 | Union Special Machine Co | Improvements in vibration isolating means for sewing machines |
CH661949A5 (en) * | 1984-01-18 | 1987-08-31 | Gegauf Fritz Ag | Drive device for the needle-bar frame or the feed dog of a sewing machine |
JPH01214393A (en) * | 1988-02-24 | 1989-08-28 | Shinichi Wakazono | Embroidering device of curved pattern in multiple needle sewing machine |
JPH0280085A (en) * | 1988-09-16 | 1990-03-20 | Mitsubishi Electric Corp | Supporting device for feed dog in sewing machine |
JPH0796090A (en) * | 1993-09-30 | 1995-04-11 | Juki Corp | Feed mechanism of sewing machine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0135729Y2 (en) * | 1986-06-30 | 1989-10-31 | ||
JPH05277271A (en) * | 1992-04-02 | 1993-10-26 | Juki Corp | Feed dog descending device |
JPH07213767A (en) * | 1994-02-01 | 1995-08-15 | Juki Corp | Feed dog adjusting mechanism for two-needle flat-head sewing machine |
JPH119867A (en) * | 1997-06-26 | 1999-01-19 | Brother Ind Ltd | Feed dog height position adjustor for sewing machine |
-
1999
- 1999-02-08 JP JP02947399A patent/JP4036353B2/en not_active Expired - Fee Related
-
2000
- 2000-02-02 KR KR1020000005127A patent/KR100586266B1/en not_active IP Right Cessation
- 2000-02-03 TW TW089202167U patent/TW510368U/en not_active IP Right Cessation
- 2000-02-04 CN CN00102206A patent/CN1101867C/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB696171A (en) * | 1950-09-14 | 1953-08-26 | Union Special Machine Co | Improvements in vibration isolating means for sewing machines |
CH661949A5 (en) * | 1984-01-18 | 1987-08-31 | Gegauf Fritz Ag | Drive device for the needle-bar frame or the feed dog of a sewing machine |
JPH01214393A (en) * | 1988-02-24 | 1989-08-28 | Shinichi Wakazono | Embroidering device of curved pattern in multiple needle sewing machine |
JPH0280085A (en) * | 1988-09-16 | 1990-03-20 | Mitsubishi Electric Corp | Supporting device for feed dog in sewing machine |
JPH0796090A (en) * | 1993-09-30 | 1995-04-11 | Juki Corp | Feed mechanism of sewing machine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102304825A (en) * | 2011-08-25 | 2012-01-04 | 中屹机械工业有限公司 | Connecting rod type sleeve joining feeding mechanism |
CN102304825B (en) * | 2011-08-25 | 2013-04-03 | 中屹机械工业有限公司 | Connecting rod type sleeve joining feeding mechanism |
Also Published As
Publication number | Publication date |
---|---|
KR100586266B1 (en) | 2006-06-07 |
CN1270246A (en) | 2000-10-18 |
JP4036353B2 (en) | 2008-01-23 |
TW510368U (en) | 2002-11-11 |
KR20010029560A (en) | 2001-04-06 |
JP2000225280A (en) | 2000-08-15 |
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