CN110396777B - Looper adjusting device of chain type sewing machine - Google Patents
Looper adjusting device of chain type sewing machine Download PDFInfo
- Publication number
- CN110396777B CN110396777B CN201910553788.1A CN201910553788A CN110396777B CN 110396777 B CN110396777 B CN 110396777B CN 201910553788 A CN201910553788 A CN 201910553788A CN 110396777 B CN110396777 B CN 110396777B
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- curved needle
- looper
- eccentric sleeve
- needle
- curved
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- 238000009958 sewing Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000007704 transition Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B63/00—Devices associated with the loop-taker thread, e.g. for tensioning
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a looper adjusting device of a chain type sewing machine, which can adjust the height of a looper to adapt to wire loops of different shapes, and comprises a needle, a looper shaft, a looper and an adjusting mechanism, wherein the adjusting mechanism comprises an eccentric sleeve, the eccentric sleeve is sleeved on the looper shaft and can rotate relative to the looper shaft, the looper is arranged on the eccentric sleeve through a looper seat, and the distance between the larger outer diameter part of the eccentric sleeve and the axial lead of the looper shaft is larger than the distance between the smaller outer diameter part of the eccentric sleeve and the axial lead of the looper shaft; when the curved needle adjusting device is in a first use state and the curved needle tip is positioned right above the needle hole, the larger outer diameter part is positioned at the upper side of the curved needle shaft, and a first height difference is arranged between the curved needle tip and the needle hole; in a second use state, when the curved needle point is positioned right above the needle hole, the smaller outer diameter part is positioned at the upper side of the curved needle shaft, a second height difference is arranged between the curved needle point and the needle hole, and the first height difference is larger than the second height difference.
Description
Technical Field
The invention belongs to the field of sewing equipment, and particularly relates to a looper adjusting device of a chain type sewing machine.
Background
The stitch formed by sewing by a chain type sewing machine is chain type and is commonly found in the hem of a coat, etc. The sewing principle of a chain sewing machine is generally as follows: the upper thread passes through the thread hole of the needle, the needle is driven to reciprocate up and down to pass through or pass out of the cloth, the needle forms a thread loop of the upper thread when moving upwards, and at the moment, the needle tip of the curved needle is inserted into the thread loop to adjust the thread to a required size. However, due to the influence of factors such as the thickness of the upper thread, the material, the thickness, the density and the material of the fabric, the shape of the thread loop formed when the needle moves upwards is different, so that the height of the curved needle needs to be correspondingly adjusted, otherwise, the problem that the needle tip of the curved needle cannot be inserted into the thread loop can occur.
Disclosure of Invention
The present invention has been made to solve the above-mentioned drawbacks and problems occurring in the prior art, and an object of the present invention is to provide a looper adjustment device for a chain type sewing machine, which can adjust the height of a looper to accommodate loops of different shapes.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a looper adjusting device of chain sewing machine, includes the needle that can reciprocate from top to bottom, by power unit drive pivoted looper axle and by looper that looper axle drive pivoted, the needle has the pinhole that supplies the face line to pass, the looper has the looper point that is used for inserting in the wire loop that the face line that the needle passed formed, the looper adjusting device still includes the adjustment mechanism that is used for adjusting the difference in height of the pinhole of looper point and the needle, adjustment mechanism includes the eccentric sleeve, the eccentric sleeve is located on the looper axle and can rotate relatively to the looper axle, the looper is installed on the eccentric sleeve through the looper seat, the eccentric sleeve has external diameter major part and external diameter minor part, the distance of external diameter major part with the axial lead of looper axle is greater than the distance of external diameter minor part with the axial lead of looper axle; the curved needle adjusting device is provided with at least two using states, in the first using state, when the curved needle point is positioned right above the needle hole, the larger outer diameter part is positioned at the upper side of the curved needle shaft, and a first height difference is arranged between the curved needle point and the needle hole; in a second use state, when the curved needle point is located right above the needle hole, the smaller outer diameter part is located on the upper side of the curved needle shaft, a second height difference is formed between the curved needle point and the needle hole, and the first height difference is larger than the second height difference.
Preferably, the curved needle seat is sleeved on the eccentric sleeve and allows the eccentric sleeve to rotate relative to the eccentric sleeve.
More preferably, the adjusting mechanism further comprises a locking member for locking the curved needle seat and/or the eccentric sleeve to prevent the curved needle seat and the eccentric sleeve from rotating relative to the curved needle shaft.
Further, the curved needle seat is provided with two opposite end parts, the two end parts of the curved needle seat are provided with first notches at intervals, the locking piece is detachably connected to the two end parts of the curved needle seat, and the first notches when the locking piece is connected to the two end parts of the curved needle seat are smaller than the first notches when the locking piece is separated from the upper end part of the curved needle seat.
Further, the eccentric sleeve has opposite two ends, the two ends of the eccentric sleeve have a gap to form a second gap, and the second gap when the locking piece is connected to the two ends of the curved needle seat is smaller than the second gap when the locking piece is separated from the upper end of the curved needle seat.
Specifically, the locking piece is a screw.
Preferably, the transition between the larger outer diameter portion and the smaller outer diameter portion is smooth.
Preferably, the eccentric sleeve is inserted between the curved needle shaft and the curved needle seat, the adjusting mechanism further comprises an adjusting flanging fixedly connected with or integrally formed with the eccentric sleeve, and an adjusting groove which is convenient for adjusting the position of the eccentric sleeve is formed in the adjusting flanging.
Preferably, the curved needle is fixed on the curved needle seat by a screw.
Compared with the prior art, the invention has the following advantages:
the eccentric sleeve is finely adjusted to rotate relative to the looper shaft and the looper sleeve, so that the positions of the larger outer diameter part and the smaller outer diameter part of the eccentric sleeve are changed, the height of the looper shaft can be correspondingly adjusted, the effect of adjusting the distance between the looper piece and the needle hole of the needle is achieved, the eccentric sleeve can adapt to wire loops of different shapes formed by fabrics of different specifications or upper threads of different specifications, and the generation of a jump needle is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a looper adjustment device of an embodiment;
FIG. 2 is a partial cross-sectional view of a side of the looper adjustment device shown in FIG. 1;
FIGS. 3 and 4 are schematic diagrams of an adjustment mechanism;
FIGS. 5a, 5b and 5c are schematic views of the curved needle adjusting device in three states of use, respectively;
fig. 6a, 6b and 6c are schematic views of a wire loop in three use states, respectively.
Wherein:
1. a needle; 10. a pinhole; 2. a curved needle shaft; 3. a curved needle; 30. bending the needle tip; 4. an eccentric sleeve; 40. a second notch; 41. a larger outer diameter portion; 42. a smaller outer diameter portion; 5. adjusting flanging; 50. groove adjustment; 6. a curved needle seat; 60. a first notch; 7. a screw; 8. a screw; 9. and (5) upper thread.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art. The definition of the orientation of the present invention is defined according to the conventional viewing angle of a person skilled in the art and for convenience of description, and is not limited to a specific direction.
The embodiment provides a looper adjusting device of a chain type sewing machine. Referring to fig. 1 and 2, the looper adjusting device includes a needle 1 capable of reciprocating up and down, a looper shaft 2 driven to rotate by a power mechanism, and a looper 3 driven to rotate by the looper shaft 2. The needle 1 has a needle hole 10 at a lower portion thereof through which the needle thread passes, and after the needle thread passes through the needle hole 10 of the needle 1, a loop is formed by the needle 1 being carried up and down, and the looper 3 has a looper tip 30 for inserting the needle thread into the loop formed by the needle thread. The curved needle adjusting device further comprises an adjusting mechanism for adjusting the height difference of the curved needle tip 30 and the needle hole 10 of the needle 1, and the height of the curved needle tip 30 is adjusted through the adjusting mechanism so as to adapt to wire loops formed by upper threads (such as different thicknesses and materials) of different specifications and different fabrics (such as different densities and thicknesses and materials), so that the occurrence of needle skipping is avoided.
As shown in connection with fig. 1 to 4, the adjustment mechanism comprises an eccentric sleeve 4. The eccentric sleeve 4 is sleeved on the curved needle shaft 2 and can rotate relative to the curved needle shaft 2, and the curved needle 3 is arranged on the eccentric sleeve 4 through the curved needle seat 6. The eccentric sleeve 4 has a larger outer diameter portion 41 and a smaller outer diameter portion 42, and the distance between the larger outer diameter portion 41 and the axial line of the looper shaft 2 is larger than the distance between the smaller outer diameter portion 42 and the axial line of the looper shaft 2, and the transition between the larger outer diameter portion 41 and the smaller outer diameter portion 42 is smooth. Wherein, eccentric sleeve 4 has the hole that cooperates with curved needle axle 2 each other, and curved needle axle 2 wears to establish in the hole, and the two are coaxial. The curved needle adjusting device has at least two use states, in the first use state, when the curved needle point 30 is positioned right above the needle hole 10, the outer diameter larger part 41 is positioned at the upper side of the curved needle shaft 2, and a first height difference is formed between the curved needle point 30 and the needle hole 10; in the second use state, when the curved needle point 30 is located directly above the needle hole 10, the outer diameter smaller portion 42 is located on the upper side of the curved needle shaft 2, and there is a second height difference between the curved needle point 30 and the needle hole 10, the first height difference being larger than the second height difference. It should be noted that, when the curved needle adjusting device is switched from one use state to another use state, the eccentric sleeve 4 can rotate relative to the curved needle shaft 2 and the curved needle seat 6, so as to adjust the phase thereof, i.e. change the positions of the outer diameter larger portion 41 and the outer diameter smaller portion 42; when the curved needle adjusting device is switched to any use state, the eccentric sleeve 4 is locked, the curved needle seat 6 and the eccentric sleeve 4 are relatively fixed and synchronously rotate along with the curved needle shaft 2, and the curved needle 3 is driven to rotate for hooking threads.
In this embodiment, the curved needle adjusting device has at least three usage states, namely, a highest usage state, a standard usage state and a lowest usage state, as shown in fig. 5a, 5b and 5 c. When the curved needle adjusting device is in the highest position use state shown in fig. 5a, the larger outer diameter part 41 of the eccentric sleeve 4 is positioned at the upper side, the height difference between the curved needle point 30 and the needle hole 10 below the curved needle point is d1, and the height difference between the curved needle point and the needle hole is the largest; fig. 6a shows the loop shape of the upper thread 9 which can be adapted in this highest position in use, wherein the bent needle point 30 is in a higher position for insertion into the loop, otherwise a jump needle is created. When the curved needle adjusting device is in the standard position use state shown in fig. 5b, the middle part between the larger outer diameter part 41 and the smaller outer diameter part 42 of the eccentric sleeve 4 is positioned at the upper side, the height difference between the curved needle point 30 and the needle hole 10 below the curved needle point is d2, and the height difference between the curved needle point 30 and the needle hole is moderate; fig. 6b shows the loop shape of the needle thread 9 which can be adapted in this standard position in use, wherein the bent needle tip 30 is in a neutral position for insertion into the loop, otherwise a jump needle is created. When the looper adjusting means is in the lowest position use state shown in fig. 5c, the outer diameter smaller portion 42 of the eccentric sleeve 4 is located at the upper side, the height difference between the looper tip 30 and the needle hole 10 therebelow is d3, and the height difference therebetween is the smallest; fig. 6c shows the loop shape of the needle thread 9 which can be adapted in this lowest position in use, wherein the bent needle tip 30 is in a lower position for insertion into the loop, otherwise a jump needle is created. Wherein d1 > d2 > d3.
The curved needle seat 6 is sleeved on the eccentric sleeve 4 and allows the eccentric sleeve 4 to rotate relative to the eccentric sleeve. The adjusting mechanism further comprises a locking member for locking the curved needle seat 6 and/or the eccentric sleeve 4 to prevent the curved needle seat 6 and the eccentric sleeve 4 from rotating relative to the curved needle shaft 2. In this embodiment, the curved needle seat 6 has two opposite ends, and the two ends of the curved needle seat 6 are spaced to form the first notch 60, so the curved needle seat 6 is generally C-shaped or open annular, and the curved needle seat 6 itself has a certain elasticity so as to be contracted under the action of external force and fixed on the eccentric sleeve 4. The locking piece is detachably connected to two end parts of the curved needle seat 6, the first notch 60 when the locking piece is connected to two end parts of the curved needle seat 6 is smaller than the first notch 60 when the locking piece is separated from the upper end part of the curved needle seat 6, namely, in the process of connecting the locking piece to two end parts of the curved needle seat 6, the locking piece applies external force to the curved needle seat 6, so that the two end parts of the curved needle seat 6 are closed, the first notch 60 is smaller, and the curved needle seat 6 integrally contracts. The locking member is in particular a screw 7 which is threaded through both ends of the looper seat 6.
The eccentric sleeve 4 also has opposite ends, and the two ends of the eccentric sleeve 4 are provided with second notches 40 at intervals, so that the eccentric sleeve 4 is also in a general C shape or an open ring shape, and the eccentric sleeve 4 has certain elasticity so as to be contracted and fixed on the curved needle shaft 2 under the action of external force. The second notch 40 when the locking member is attached to both ends of the curved needle seat 6 is smaller than the second notch 40 when the locking member is detached from the upper end of the curved needle seat 6. That is, in the process that the locking member is connected to the two ends of the curved needle seat 6, the eccentric sleeve 4 in the curved needle seat 6 is subjected to the pressure generated by further contraction of the curved needle seat 6, that is, the two ends thereof are closed, the second notch 40 is reduced until the eccentric sleeve 4 is locked on the curved needle shaft 2, the curved needle seat 6 is locked on the eccentric sleeve 4, the three are connected into a whole, and the curved needle seat 6 and the eccentric sleeve 4 synchronously rotate along with the curved needle shaft 2, thereby driving the curved needle 3 to penetrate the wire loop.
The eccentric sleeve 4 is inserted between the curved needle shaft 2 and the curved needle seat 6, the adjusting mechanism further comprises an adjusting flanging 5 fixedly connected with the eccentric sleeve 4 or integrally formed, and an adjusting groove 50 which is convenient for adjusting the position of the eccentric sleeve 4 is formed in the adjusting flanging 5 and can be matched with a tool (such as a screwdriver) to use. It should be noted that the first notch 60 extends axially through the eccentric sleeve 4 and the adjustment flange 5.
The curved needle 3 is fixed on the curved needle seat 6 by a screw 8.
When the height of the curved needle point 30 needs to be adjusted, the screw 7 is unscrewed, tools such as a screwdriver and the like are clamped into the adjusting groove 50, the eccentric sleeve 4 rotates for a certain angle relative to the curved needle shaft 2 and the curved needle seat 6, and the positions of the larger outer diameter part and the smaller outer diameter part of the eccentric sleeve are changed and adjusted in place; the screw 7 is screwed down, so that the curved needle seat 6 and the eccentric sleeve 4 are locked on the curved needle shaft 2; when the sewing machine starts to work, the eccentric sleeve 4 and the looper seat 6 rotate together with the looper shaft 2, so that the looper 3 is driven to rotate for thread hooking.
The above-described embodiments are provided for illustrating the technical concept and features of the present invention, and are intended to be preferred embodiments for those skilled in the art to understand the present invention and implement the same according to the present invention, not to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the present invention should be construed to be included in the scope of the present invention.
Claims (7)
1. The utility model provides a looper adjusting device of chain sewing machine, includes the needle that can reciprocate from top to bottom, by power unit drive pivoted looper axle and by looper axle drive pivoted looper, the needle has the pinhole that supplies the face line to pass, the looper has the looper point that is arranged in inserting in the wire loop that the face line that the needle passed formed, its characterized in that: the curved needle adjusting device further comprises an adjusting mechanism for adjusting the height difference between the curved needle tip and the needle hole of the needle, the adjusting mechanism comprises an eccentric sleeve, the eccentric sleeve is sleeved on the curved needle shaft and can rotate relative to the curved needle shaft, the curved needle is installed on the eccentric sleeve through a curved needle seat, the eccentric sleeve is provided with a larger outer diameter part and a smaller outer diameter part, and the distance between the larger outer diameter part and the axial lead of the curved needle shaft is larger than that between the smaller outer diameter part and the axial lead of the curved needle shaft; the curved needle adjusting device is provided with at least two using states, in the first using state, when the curved needle point is positioned right above the needle hole, the larger outer diameter part is positioned at the upper side of the curved needle shaft, and a first height difference is arranged between the curved needle point and the needle hole; in a second use state, when the curved needle point is positioned right above the needle hole, the smaller outer diameter part is positioned on the upper side of the curved needle shaft, a second height difference is arranged between the curved needle point and the needle hole, and the first height difference is larger than the second height difference; the curved needle seat is sleeved on the eccentric sleeve and allows the eccentric sleeve to rotate relative to the eccentric sleeve, and smooth transition is realized between the larger-outer-diameter part and the smaller-outer-diameter part.
2. The looper adjustment device of claim 1, wherein: the adjusting mechanism further comprises a locking piece used for locking the curved needle seat and/or the eccentric sleeve so as to prevent the curved needle seat and the eccentric sleeve from rotating relative to the curved needle shaft.
3. The looper adjustment device of claim 2, wherein: the curved needle seat is provided with two opposite end parts, two end parts of the curved needle seat are provided with first gaps at intervals, the locking piece is detachably connected to the two end parts of the curved needle seat, and the first gaps when the locking piece is connected to the two end parts of the curved needle seat are smaller than the first gaps when the locking piece is separated from the upper end parts of the curved needle seat.
4. A looper adjustment device according to claim 3, wherein: the eccentric sleeve is provided with two opposite end parts, two end parts of the eccentric sleeve are provided with second gaps at intervals, and the second gaps when the locking piece is connected to the two end parts of the curved needle seat are smaller than the second gaps when the locking piece is separated from the upper end part of the curved needle seat.
5. The looper adjustment device of claim 2, wherein: the locking piece is a screw.
6. The looper adjustment device of claim 1, wherein: the eccentric sleeve is inserted between the curved needle shaft and the curved needle seat, the adjusting mechanism further comprises an adjusting flanging fixedly connected with or integrally formed with the eccentric sleeve, and an adjusting groove which is convenient for adjusting the position of the eccentric sleeve is formed in the adjusting flanging.
7. The looper adjustment device of claim 1, wherein: the curved needle is fixed on the curved needle seat through a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910553788.1A CN110396777B (en) | 2019-06-25 | 2019-06-25 | Looper adjusting device of chain type sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910553788.1A CN110396777B (en) | 2019-06-25 | 2019-06-25 | Looper adjusting device of chain type sewing machine |
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| Publication Number | Publication Date |
|---|---|
| CN110396777A CN110396777A (en) | 2019-11-01 |
| CN110396777B true CN110396777B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910553788.1A Active CN110396777B (en) | 2019-06-25 | 2019-06-25 | Looper adjusting device of chain type sewing machine |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019219814A1 (en) * | 2019-12-17 | 2021-06-17 | Pfaff Industriesysteme Und Maschinen Gmbh | Stitch forming tool assembly for a sewing system and sewing system with such an assembly |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB534438A (en) * | 1939-04-21 | 1941-03-06 | Singer Mfg Co | Looper-mechanism for sewing machines |
| US3871311A (en) * | 1973-11-15 | 1975-03-18 | Singer Co | Adjustable eccentric for sewing machines |
| US4974534A (en) * | 1987-09-29 | 1990-12-04 | Pfaff Industriemaschinen Gmbh | Double chain stitch sewing machine having a looper and a looper thread spreader |
| CN1108322A (en) * | 1993-12-18 | 1995-09-13 | 联合特别有限公司 | Looper drive for a chainstitch sewing machine |
| CN2346813Y (en) * | 1998-06-20 | 1999-11-03 | 余瑞明 | Double chain-stitch sewing machine |
| CN101319438A (en) * | 2007-06-07 | 2008-12-10 | 日星产业缝制机械株式会社 | Slip stitch device of chain sewing machine |
| KR20090008602A (en) * | 2007-07-18 | 2009-01-22 | 조이현 | Lopper device for sewing machine |
| JP2010227219A (en) * | 2009-03-26 | 2010-10-14 | Pegasus Sewing Mach Mfg Co Ltd | Lower looper adjuster for sewing machine |
| CN204982326U (en) * | 2015-09-18 | 2016-01-20 | 台州市极派工业缝纫机有限公司 | Line backstitch assembly is caught hold of with a hook in automation on chain sewing machine |
| CN208414806U (en) * | 2018-05-31 | 2019-01-22 | 浙江美机缝纫机有限公司 | A kind of looper hook device of sewing machine and its chain sitch sewing machine |
| CN210368225U (en) * | 2019-06-25 | 2020-04-21 | 吴江阳光科技缝纫机有限公司 | Curved needle adjusting device of chain type sewing machine |
-
2019
- 2019-06-25 CN CN201910553788.1A patent/CN110396777B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB534438A (en) * | 1939-04-21 | 1941-03-06 | Singer Mfg Co | Looper-mechanism for sewing machines |
| US3871311A (en) * | 1973-11-15 | 1975-03-18 | Singer Co | Adjustable eccentric for sewing machines |
| US4974534A (en) * | 1987-09-29 | 1990-12-04 | Pfaff Industriemaschinen Gmbh | Double chain stitch sewing machine having a looper and a looper thread spreader |
| CN1108322A (en) * | 1993-12-18 | 1995-09-13 | 联合特别有限公司 | Looper drive for a chainstitch sewing machine |
| CN2346813Y (en) * | 1998-06-20 | 1999-11-03 | 余瑞明 | Double chain-stitch sewing machine |
| CN101319438A (en) * | 2007-06-07 | 2008-12-10 | 日星产业缝制机械株式会社 | Slip stitch device of chain sewing machine |
| KR20090008602A (en) * | 2007-07-18 | 2009-01-22 | 조이현 | Lopper device for sewing machine |
| JP2010227219A (en) * | 2009-03-26 | 2010-10-14 | Pegasus Sewing Mach Mfg Co Ltd | Lower looper adjuster for sewing machine |
| CN204982326U (en) * | 2015-09-18 | 2016-01-20 | 台州市极派工业缝纫机有限公司 | Line backstitch assembly is caught hold of with a hook in automation on chain sewing machine |
| CN208414806U (en) * | 2018-05-31 | 2019-01-22 | 浙江美机缝纫机有限公司 | A kind of looper hook device of sewing machine and its chain sitch sewing machine |
| CN210368225U (en) * | 2019-06-25 | 2020-04-21 | 吴江阳光科技缝纫机有限公司 | Curved needle adjusting device of chain type sewing machine |
Non-Patent Citations (1)
| Title |
|---|
| 绷缝机的结构特点及常见故障排除方法;阳洪东;;科技风;20090715(第13期);218-219 * |
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