CN104562490A - Needle bar protective mouth driving structure of towel embroiderer - Google Patents
Needle bar protective mouth driving structure of towel embroiderer Download PDFInfo
- Publication number
- CN104562490A CN104562490A CN201510054549.3A CN201510054549A CN104562490A CN 104562490 A CN104562490 A CN 104562490A CN 201510054549 A CN201510054549 A CN 201510054549A CN 104562490 A CN104562490 A CN 104562490A
- Authority
- CN
- China
- Prior art keywords
- mouth
- shank
- protect
- cam
- needle bar
- 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.)
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Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
- D05C11/02—Machine needles
- D05C11/06—Needle-driving or control mechanisms
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C13/00—Auxiliary devices incorporated in embroidering machines, not otherwise provided for; Ancillary apparatus for use with embroidering machines
- D05C13/02—Counting, measuring, indicating, warning, or safety devices
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a needle bar protective mouth driving structure of a towel embroiderer. The needle bar protective mouth driving structure comprises a driving main shaft, a cam driving mechanism, a connecting rod driving mechanism, a connecting rod lifting mechanism, a needle bar and a protective mouth mechanism, wherein the connecting rod driving mechanism comprises a needle bar driving connecting rod, a protective mouth driving connecting rod, a needle bar crank arm, a needle bar lifting arm, a protective mouth crank arm and a protective mouth lifting arm; the needle bar crank arm and the protective mouth crank arm are arranged on a same crank arm fixing shaft in a sleeving manner; the connecting rod lifting mechanism comprises a needle bar lifting mechanism, a protective mouth lifting mechanism, a needle bar lifting seat, a needle bar lifting guide shaft, a needle bar reset spring, a needle bar crank arm lifting rod, a protective mouth lifting seat, a protective mouth lifting guide shaft, a protective mouth reset spring and a guide shaft seat; the cam driving mechanism comprises a needle bar cam, a needle bar pulley, a protective mouth cam and a protective mouth pulley; the needle bar cam and the protective mouth cam are both mounted on the driving main shaft; the needle bar pulley and the protective mouth pulley are respectively mounted in the middles of the needle bar lifting seat and the protective mouth lifting seat. The needle bar protective mouth driving structure disclosed by the invention has the beneficial effects of increasing the motion speed of a needle bar protective mouth, increasing the embroidering speed of the embroiderer and improving the production efficiency.
Description
Technical field
The present invention relates to a kind of shank that controls on chain order towel embroidery machine to protect the towel embroidery machine having needle stem that mouth moves up and down and protect mouth drives structure.
Background technology
On chain order towel embroidery machine, control shank in prior art protect the towel embroidery machine having needle stem that mouth moves up and down and protect mouth drives structure, the cam drive mechanism comprising driving main shaft and install wherein, also has bar-link drive, described bar-link drive drives shank and protects nozzle mechanism, cam drive mechanism is that a two-sided track shank protects mouth driving cam, described bar-link drive comprises shank drive link and protects mouth drive link, described shank drive link comprise shank crank arm and shank carry arm, the two ends that shank carries arm are hinged on shank respectively and crank arm one end and be fixed on shank, described mouth drive link of protecting comprises and protects mouth and crank arm and protect mouth and carry arm, protect two ends that mouth carries arm to be hinged on respectively and to protect mouth and to crank arm one end and be fixed on and protect on nozzle mechanism, described shank is cranked arm and is protected centre that mouth cranks arm and is socketed in same with sliding matching mode respectively and is fixed on embroidering machine head case cranks arm on dead axle, two-sided track shank protects mouth driving cam two sides to be had needle-bar cam track respectively and protects mouth cam rail, shank is cranked arm and is protected the other end that mouth cranks arm and have a supporting-point and corresponding needle-bar cam track and protect mouth cam rail and contact and coordinate, two-sided track shank protects to drive shank to crank arm simultaneously and protect mouth when mouth driving cam rotates and to crank arm swing, rely on shank to carry arm and Hu Zui to carry arm and drive shank and protect nozzle mechanism and protect mouth lifting phase difference according to towel embroidery shank and move up and down, in the disclosed related content of Chinese utility model patent ZL200520063594.7 " chain order towel embroidery machine having needle stem, presser foot protects lower transmission mechanism on mouth ", this structure was also described, the maximum shortcoming of this structure is cranked arm because the track that two-sided track shank protects mouth driving cam limits shank and protect the supporting-point migration speed that mouth cranks arm, have impact on shank to protect mouth and to move up and down speed, because speed raising can cause shank to crank arm and protect supporting-point that mouth cranks arm and be stuck and protect in the track of mouth driving cam at two-sided track shank, embroidery machine embroidery speed cannot be promoted again, have impact on production efficiency.
Summary of the invention
The technical problem to be solved in the present invention is to provide one and can promotes shank and protect mouth and to move up and down speed, thus the towel embroidery machine having needle stem promoting embroidery machine embroidery speed and production efficiency protects mouth drives structure.
In order to solve the problems of the technologies described above, towel embroidery machine having needle stem of the present invention protects mouth drives structure technical scheme: the cam drive mechanism comprising driving main shaft and install wherein, also have bar-link drive and linking rod lifting mechanism, described linking rod lifting mechanism drives shank and protects nozzle mechanism, described bar-link drive comprises shank drive link and protects mouth drive link, described shank drive link comprise shank crank arm and shank carry arm, the two ends that shank carries arm are hinged on shank respectively and crank arm one end and be fixed on shank, described mouth drive link of protecting comprises and protects mouth and crank arm and protect mouth and carry arm, protect two ends that mouth carries arm to be hinged on respectively and to protect mouth and to crank arm one end and be fixed on and protect on nozzle mechanism, described shank is cranked arm and is protected the other end that mouth cranks arm and is socketed in same with sliding matching mode respectively and is fixed on embroidering machine head case cranks arm on dead axle, described linking rod lifting mechanism comprises needle bar lifting mechanism and protects mouth hoisting mechanism, described needle bar lifting mechanism comprises shank elevating bracket and shank is elevated guide shaft and shank back-moving spring, wherein shank elevating bracket is socketed in shank lifting guide shaft on upper with sliding matching mode at lower and shank back-moving spring, be connected with shank with hinging manner between the middle part that the lower end of shank elevating bracket and shank are cranked arm to crank arm shadoof, the described mouth hoisting mechanism that protects comprises and protects mouth elevating bracket and protect mouth lifting guide shaft and protect mouth back-moving spring, wherein protect mouth elevating bracket lower and protect mouth back-moving spring and protect on mouth lifting guide shaft upper to be socketed in sliding matching mode, protect mouth elevating bracket side is also socketed on shank lifting guide shaft with sliding matching mode simultaneously, protect to be connected with hinging manner between middle part that the lower end of mouth elevating bracket and Hu Zui crank arm and protect mouth and to crank arm shadoof, described shank back-moving spring and the upper end protecting mouth back-moving spring also have one to be fixed on to be elevated guide shaft on embroidering machine head case and by shank and to protect the fixing guide shaft seat in mouth lifting guide shaft one end, the other end of described shank lifting guide shaft is fixed on embroidering machine head case, described cam drive mechanism comprises needle-bar cam and shank pulley, and protect mouth cam and protect mouth pulley, described needle-bar cam and protect mouth cam and be installed in driving main shaft, described shank pulley and protect mouth pulley and be arranged on shank elevating bracket respectively and protect the middle part of mouth elevating bracket, when driving main shaft is rotated, needle-bar cam and protect mouth cam respectively by shank pulley with protect mouth pulley and protect mouth lifting phase difference according to towel embroidery shank and drive shank elevating bracket and protect the lifting of mouth elevating bracket, drive shank drive link and protect mouth drive link and drive shank and protect nozzle mechanism lifting.
As one of the preferred technical solution of the present invention be: described needle-bar cam and protect connecting as one of mouth cam structure.
As two of the preferred technical solution of the present invention be: the described nozzle mechanism that protects comprises and protects mouth shadoof and protect mouth crank and protect mouth, described mouth crank two ends of protecting are separately fixed at the lower end of protecting mouth shadoof and protect on mouth, described in protect mouth to carry arm one end be fixed on to protect on mouth shadoof.
The invention has the beneficial effects as follows: because cam drive mechanism of the present invention adopts the transmission of open type cam mechanism, the two-sided track shank of semi-open type compared to existing technology protects mouth driving cam can further lifter motion speed, respective link hoisting mechanism improves shank further and protects the stationarity that mouth moves up and down, make shank protect mouth and be more applicable to high-speed motion, so the present invention has and can promote shank and protect mouth and to move up and down speed, thus promote the beneficial effect of embroidery machine embroidery speed and production efficiency.
Accompanying drawing explanation
Protect mouth drives structure below in conjunction with accompanying drawing to towel embroidery machine having needle stem of the present invention to be described in more detail.
Fig. 1 is the front view that the towel embroidery machine having needle stem of prior art protects mouth drives structure.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the right view of Fig. 1.
Fig. 4 is the rearview of Fig. 1.
Fig. 5 is the front view that towel embroidery machine having needle stem of the present invention protects mouth drives structure.
Fig. 6 is the rearview of Fig. 5.
Fig. 7 is the left view of Fig. 5.
Fig. 8 is the right view of Fig. 5.
Fig. 9 is the front view that towel embroidery machine having needle stem of the present invention protects transmission mechanism for needle bar in mouth drives structure.
Figure 10 is the left view of Fig. 9.
Figure 11 is the right view of Fig. 9.
Figure 12 is the rearview of Fig. 9.
Figure 13 is that towel embroidery machine having needle stem of the present invention protects the front view protecting mouth transmission mechanism in mouth drives structure.
Figure 14 is the left view of Figure 13.
Figure 15 is the right view of Figure 13.
Figure 16 is the rearview of Figure 13.
Figure 17 is that towel embroidery machine having needle stem of the present invention protects mouth drives structure and is arranged on front view in embroidering machine head case.
Figure 18 is the left view of Figure 17.
Figure 19 is the right view of Figure 17.
Figure 20 is the top view of Figure 17.
Figure 21 is the upward view of Figure 17.
Detailed description of the invention
Shown in Fig. 1 ~ 4, that the towel embroidery machine having needle stem of prior art protects mouth drives structure, the cam drive mechanism 2 comprising driving main shaft 1 and install wherein, also has bar-link drive 3, described bar-link drive 3 drives shank 5 and protects nozzle mechanism 6, cam drive mechanism 2 is that a two-sided track shank protects mouth driving cam 20, described bar-link drive 3 comprises shank drive link 31 and protects mouth drive link 32, described shank drive link 31 comprise shank crank arm 311 and shank carry arm 312, the two ends that shank carries arm 312 are hinged on shank respectively and crank arm 311 one end and be fixed on shank 5, described protect mouth drive link 32 comprise protect mouth crank arm 321 and Hu Zui carry arm 322, protect two ends that mouth carries arm 322 to be hinged on respectively and to protect mouth and to crank arm 321 one end and be fixed on and protect on nozzle mechanism 6, described shank crank arm 311 and Hu Zui crank arm 321 centre be socketed in same with sliding matching mode respectively and be fixed on embroidering machine head case cranks arm on dead axle 7, two-sided track shank protects mouth driving cam 20 two sides to be had needle-bar cam track 201 respectively and protects mouth cam rail 202, shank crank arm 311 with Hu Zui crank arm 321 the other end have a supporting-point 30 and corresponding needle-bar cam track 201 and protect mouth cam rail 202 and contact and coordinate, two-sided track shank protect to drive when mouth driving cam 20 rotates simultaneously shank crank arm 311 and Hu Zui to crank arm 321 swings, rely on shank to carry arm 312 and Hu Zui to carry arm 322 and drive shank 5 and protect nozzle mechanism 6 and protect mouth lifting phase difference according to towel embroidery shank and move up and down, the maximum shortcoming of this structure be because the track that two-sided track shank protects mouth driving cam 20 limit shank crank arm 311 and Hu Zui crank arm 321 supporting-point 30 migration speed, have impact on shank to protect mouth and to move up and down speed, because speed raising can cause shank crank arm 311 and Hu Zui crank arm 321 supporting-point 30 be stuck and protect in the track of mouth driving cam 20 at two-sided track shank, embroidery machine embroidery speed cannot be promoted again, have impact on production efficiency.
Shown in Fig. 5 ~ 21, towel embroidery machine having needle stem of the present invention protects mouth drives structure technical scheme: the cam drive mechanism 2 comprising driving main shaft 1 and install wherein, also have bar-link drive 3 and linking rod lifting mechanism 4, described linking rod lifting mechanism 4 drives shank 5 and protects nozzle mechanism 6, described bar-link drive 3 comprises shank drive link 31 and protects mouth drive link 32, described shank drive link 31 comprise shank crank arm 311 and shank carry arm 312, the two ends that shank carries arm 312 are hinged on shank respectively and crank arm 311 one end and be fixed on shank 5, described protect mouth drive link 32 comprise protect mouth crank arm 321 and Hu Zui carry arm 322, protect two ends that mouth carries arm 322 to be hinged on respectively and to protect mouth and to crank arm 321 one end and be fixed on and protect on nozzle mechanism 6, described shank crank arm 311 and Hu Zui crank arm 321 the other end be socketed in same with sliding matching mode respectively and be fixed on embroidering machine head case cranks arm on dead axle 7, described linking rod lifting mechanism 4 comprises needle bar lifting mechanism 41 and protects mouth hoisting mechanism 42, described needle bar lifting mechanism 41 comprises shank elevating bracket 411 and shank is elevated guide shaft 412 and shank back-moving spring 413, wherein shank elevating bracket 411 is socketed in shank lifting guide shaft 412 on upper with sliding matching mode at lower and shank back-moving spring 413, the lower end of shank elevating bracket 411 and shank crank arm 311 middle part between be connected with shank with hinging manner and crank arm shadoof 43, the described mouth hoisting mechanism 42 that protects comprises and protects mouth elevating bracket 421 and protect mouth lifting guide shaft 422 and protect mouth back-moving spring 423, wherein protect mouth elevating bracket 421 lower and protect mouth back-moving spring 423 and protect on mouth lifting guide shaft 422 upper to be socketed in sliding matching mode, protect mouth elevating bracket 421 side is also socketed on shank lifting guide shaft 412 with sliding matching mode simultaneously, protect the lower end of mouth elevating bracket 421 and Hu Zui crank arm 321 middle part between to be connected with hinging manner and to protect mouth and to crank arm shadoof 44, described shank back-moving spring 413 and the upper end protecting mouth back-moving spring 423 also have one to be fixed on to be elevated guide shaft 412 on embroidering machine head case and by shank and to protect the fixing guide shaft seat 45 in mouth lifting guide shaft 422 one end, the other end of described shank lifting guide shaft 412 is fixed on embroidering machine head case, described cam drive mechanism 2 comprises needle-bar cam 21 and shank pulley 22, and protect mouth cam 23 and protect mouth pulley 24, described needle-bar cam 21 and protect mouth cam 23 and be installed in driving main shaft 1, described shank pulley 22 and protect the middle part that mouth pulley 24 is arranged on shank elevating bracket 411 respectively and protects mouth elevating bracket 421, when driving main shaft 1 is rotated, needle-bar cam 21 and protect mouth cam 23 respectively by shank pulley 22 with protect mouth pulley 24 and protect mouth lifting phase difference according to towel embroidery shank and drive shank elevating bracket 411 and protect mouth elevating bracket 421 and be elevated, drive shank drive link 31 and protect mouth drive link 32 and drive shank 5 and protect nozzle mechanism 6 and be elevated.In the present embodiment, needle-bar cam 21 and shank pulley 22, can be independently cam respectively, also can be made of one, shank pulley 22 can be the pulley do not rotated with protecting mouth pulley 24, also can be rotary pulley, preferably with the rotary pulley of bearing, reduce friction loss and keep motion accuracy, shank crank arm 311 and Hu Zui crank arm 321 end sleeve be connected on the position of cranking arm between dead axle 7 and preferably adopt bearing, improve the flexibility and movement accuracy of cranking arm.
Shown in Fig. 8,11,15, as one of the preferred technical solution of the present invention be: described needle-bar cam 21 and protect connecting as one of mouth cam 23 structure.In the present embodiment, needle-bar cam 21 and protect mouth cam 23 and by casting or being processed as one of forging mode structure, can keep the uniformity of two cam phases of each part preferably.
By Figure 13 ~ 16, shown in Fig. 5 ~ 8, as two of the preferred technical solution of the present invention be: the described nozzle mechanism 6 that protects comprises and protects mouth shadoof 61 and protect mouth crank 62 and protect mouth 63, described mouth crank 62 two ends of protecting are separately fixed at the lower end of protecting mouth shadoof 61 and protect on mouth 63, described in protect mouth to carry arm 322 one end be fixed on to protect on mouth shadoof 61.In the present embodiment, the interference effect protecting mouth 63 pairs of shanks 5 can be reduced, increase the adaptability of high speed motion further.
Shown in Fig. 5 ~ 21, the present invention operationally, driving main shaft 1 is rotated, needle-bar cam 21 and protect mouth cam 23 respectively by shank pulley 22 with protect mouth pulley 24 and protect mouth lifting phase difference according to towel embroidery shank and drive shank elevating bracket 411 and protect mouth elevating bracket 421 and be elevated, drives shank drive link 31 and protects mouth drive link 32 and drive shank 5 and protect nozzle mechanism 6 and be elevated.Cam drive mechanism 2 of the present invention adopts the transmission of open type cam mechanism, the two-sided track shank of semi-open type compared to existing technology protects mouth driving cam can further lifter motion speed, respective link hoisting mechanism 4 improves shank further and protects the stationarity that mouth moves up and down, make shank protect mouth and be more applicable to high-speed motion, so the present invention has and can promote shank and protect mouth and to move up and down speed, thus promote the beneficial effect of embroidery machine embroidery speed and production efficiency.
The above is the preferred embodiment of the present invention, and it does not form limiting the scope of the invention, as long as realize object of the present invention with substantially identical means, all should belong to protection scope of the present invention.
Claims (3)
1. a towel embroidery machine having needle stem protects mouth drives structure, the cam drive mechanism (2) comprising driving main shaft (1) and install wherein, also have bar-link drive (3) and linking rod lifting mechanism (4), described linking rod lifting mechanism (4) drives shank (5) and protects nozzle mechanism (6), described bar-link drive (3) comprises shank drive link (31) and protects mouth drive link (32), described shank drive link (31) comprises shank and to crank arm (311) and shank carries arm (312), the two ends that shank carries arm (312) are hinged on shank respectively and crank arm (311) one end and be fixed on shank (5), described mouth drive link (32) of protecting comprises and protects mouth and crank arm (321) and protect mouth and carry arm (322), protect two ends that mouth carries arm (322) to be hinged on respectively and to protect mouth and to crank arm (321) one end and be fixed on and protect on nozzle mechanism (6), it is characterized in that: described shank is cranked arm (311) and protected the crank arm other end of (321) of mouth and is socketed on the dead axle of cranking arm (7) that same is fixed on embroidering machine head case with sliding matching mode respectively, described linking rod lifting mechanism (4) comprises needle bar lifting mechanism (41) and protects mouth hoisting mechanism (42), described needle bar lifting mechanism (41) comprises shank elevating bracket (411) and shank is elevated guide shaft (412) and shank back-moving spring (413), wherein shank elevating bracket (411) is socketed in shank lifting guide shaft (412) on upper with sliding matching mode at lower and shank back-moving spring (413), the lower end of shank elevating bracket (411) and shank crank arm (311) middle part between be connected with shank with hinging manner and crank arm shadoof (43), the described mouth hoisting mechanism (42) that protects comprises and protects mouth elevating bracket (421) and protect mouth lifting guide shaft (422) and protect mouth back-moving spring (423), wherein protect mouth elevating bracket (421) lower and protect mouth back-moving spring (423) and protect on mouth lifting guide shaft (422) upper to be socketed in sliding matching mode, protect mouth elevating bracket (421) side is also socketed on shank lifting guide shaft (412) with sliding matching mode simultaneously, protect the lower end of mouth elevating bracket (421) and Hu Zui crank arm (321) middle part between to be connected with hinging manner and to protect mouth and to crank arm shadoof (44), described shank back-moving spring (413) and the upper end protecting mouth back-moving spring (423) also have one to be fixed on to be elevated guide shaft (412) on embroidering machine head case and by shank and to protect the fixing guide shaft seat (45) in mouth lifting guide shaft (422) one end, the other end of described shank lifting guide shaft (412) is fixed on embroidering machine head case, described cam drive mechanism (2) comprises needle-bar cam (21) and shank pulley (22), and protect mouth cam (23) and protect mouth pulley (24), described needle-bar cam (21) and protect mouth cam (23) and be installed in driving main shaft (1), described shank pulley (22) and protect the middle part that mouth pulley (24) is arranged on shank elevating bracket (411) respectively and protects mouth elevating bracket (421), when driving main shaft (1) is rotated, needle-bar cam (21) and protect mouth cam (23) respectively by shank pulley (22) and protect mouth pulley (24) according to towel embroidery shank protect mouth lifting phase difference drive shank elevating bracket (411) and protect mouth elevating bracket (421) be elevated, drive shank drive link (31) and protect mouth drive link (32) and drive shank (5) and protect nozzle mechanism (6) lifting.
2. towel embroidery machine having needle stem according to claim 1 protects mouth drives structure, it is characterized in that: described needle-bar cam (21) and protect mouth cam (23) connecting as one structure.
3. towel embroidery machine having needle stem according to claim 1 protects mouth drives structure, it is characterized in that: the described nozzle mechanism (6) that protects comprises and protects mouth shadoof (61) and protect mouth crank (62) and protect mouth (63), described protect mouth crank (62) two ends be separately fixed at protect mouth shadoof (61) lower end and Hu Zui (63) on, described in protect mouth to carry arm (322) one end be fixed on to protect on mouth shadoof (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510054549.3A CN104562490A (en) | 2015-02-03 | 2015-02-03 | Needle bar protective mouth driving structure of towel embroiderer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510054549.3A CN104562490A (en) | 2015-02-03 | 2015-02-03 | Needle bar protective mouth driving structure of towel embroiderer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104562490A true CN104562490A (en) | 2015-04-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510054549.3A Pending CN104562490A (en) | 2015-02-03 | 2015-02-03 | Needle bar protective mouth driving structure of towel embroiderer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104562490A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087288A (en) * | 2016-08-31 | 2016-11-09 | 兰如林 | Sewing machine and sewing machine needle protection device |
| CN107119397A (en) * | 2017-05-27 | 2017-09-01 | 浙江信胜缝制设备有限公司 | A kind of towel embroidery cam coordinates combining structure with roller |
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| CN204530165U (en) * | 2015-02-03 | 2015-08-05 | 陈展新 | Towel embroidery machine having needle stem protects mouth drives structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001259272A (en) * | 2000-03-17 | 2001-09-25 | Aisin Seiki Co Ltd | Driving device for pressing cloth mounted on embroidery machine |
| CN2646176Y (en) * | 2003-11-04 | 2004-10-06 | 东莞市寮步恒昌机械厂 | Presser plate regulating mechanism of computerised spininess quilter |
| CN2825688Y (en) * | 2005-08-23 | 2006-10-11 | 陈展新 | Up-and-down transmission mechanism for chain-eyes towel embroidery machine having needle stem, presser foot, and nozzle guard |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087288A (en) * | 2016-08-31 | 2016-11-09 | 兰如林 | Sewing machine and sewing machine needle protection device |
| CN107119397A (en) * | 2017-05-27 | 2017-09-01 | 浙江信胜缝制设备有限公司 | A kind of towel embroidery cam coordinates combining structure with roller |
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