CN201172736Y - Thread cutter of sewing machine by chain type stitch - Google Patents
Thread cutter of sewing machine by chain type stitch Download PDFInfo
- Publication number
- CN201172736Y CN201172736Y CNU2008200934726U CN200820093472U CN201172736Y CN 201172736 Y CN201172736 Y CN 201172736Y CN U2008200934726 U CNU2008200934726 U CN U2008200934726U CN 200820093472 U CN200820093472 U CN 200820093472U CN 201172736 Y CN201172736 Y CN 201172736Y
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- Prior art keywords
- knife rest
- sliding rail
- fixed
- bolt
- cutting device
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- Expired - Lifetime
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Abstract
The utility model discloses a tangent device of a chain-stitch sewing machine, which comprises a cutter head bottom board, a knife rack, a sliding rail, a location sheet, a driving swing arm and a bracket, wherein the cutter head bottom board is provided with a depressed portion, the knife rack is fixed in the depressed portion, the sliding rail is fixed on the upper surface of the knife rack, and a cutting knife is arranged on the front end of the knife rack. Compared with the prior art, the utility model simplifies the assembly of an original tangent device, and facilitates a crochet needle to be forced to transmit along the center line as the crochet needle and the sliding rail are in the same plane, thereby strengthening the stable operation property of the crochet needle. The swing angle of the crochet needle stretching out of a location point and the whole of cutter rack is regulated through a U-shaped hole and a through hole of a location block, thereby unifying and being convenient for the regulation process. The knife rack can steadily and effectively operate as a bracket of auxiliary elements is installed on the front extending position of the knife rack, thereby increasing the stability of the tangent device.
Description
Technical field:
The utility model relates to a kind of Sewing machines thread cutting device of chain stitch.
Background technology:
The Sewing machines thread cutting device of existing chain stitch mainly is to be fixed on the Sewing machines by the mode that locate position, four holes, when after the sewing end of job, carrying out the tangent line operation, the moving cutting tool of tangent line clamp mechanism is promptly borrowed the action of linking swing arm and is stretched out forward, moving cutting tool stops to certain some place forward, after coil hooked, moving cutting tool begins withdrawal, in withdrawal preceding hook part and back hook part respectively with the coil that hooks toward pulling back.When moving cutting tool was withdrawn into the home position, the coil that the hooks cutting knife that is fixed cut off.And, finish the tangent line operation by intermediate plate group clamping.
Yet, still there is following shortcoming in actual use in this thread cutting device: 1, thread cutting device is contained on the Sewing machines by position, installing plate four hole, thus when thread cutting device after a period of time uses, when needing to adjust the position of thread cutting device and angle, the bolt that is used for fixing to be spun off, could adjust.Make whole operation process complexity.2, thread cutting device can not be swung owing to angle, make that the position of position off-hook circle device that thread cutting device is installed and suture needle is far away, the length lengthening that crochet hook is stretched out, the long error that causes hook money or tangent line easily of crochet hook extension elongation, cause the sizable puzzlement of operator, even if hook the back cut-out also because of the line of uncinate gyrus causes the end of a thread that stays long too much, influence attractive in appearance.
The utility model content:
For solve adjust in the prior art thread cutting device difficulty big, cut money device residual long coil after cutting off coil, influence problems such as product is attractive in appearance, the purpose of this utility model is to provide a kind of Sewing machines thread cutting device of chain stitch.
For achieving the above object, the utility model adopts following technical scheme:
A kind of Sewing machines thread cutting device of chain stitch, include cutterhead base plate (1), knife rest (2), sliding rail (3), transmission swing arm (4), spacer (5), carriage (27) composition, described cutterhead base plate (1) is provided with a depressed part (101), be fixed with knife rest (2) in this depressed part (101), be fixed with sliding rail (3) above the knife rest (2), front end is fixed with cutting knife (7).
Described sliding rail (3) is provided with U-lag (306).
Also be fixed with transmission swing arm (4) on the described cutterhead base plate (1), the U-lag (306) on these transmission swing arm (4) one ends and the sliding rail (3) interlocks.
Also be provided with microscler chute (302) and (303) and an arc chute (301) on the described sliding rail (3), described microscler chute (303) is fixed on knife rest (2) upper screwed hole (203) by the protruding circle of bolt (15) fit adjustment (25), described microscler chute (302) is rotated with on knife rest (2) by bolt (16), so that microscler chute (302) slides before and after the effect of bolt (16), described arc chute (301) is fixed on the screwed hole (103) of cutterhead base plate (1) by the protruding circle of bolt (21) fit adjustment (22).
Described cutterhead base plate (1) is gone up plane and knife rest (2) plane parallel.
Described spacer (5) is provided with two U-shaped holes (501) and a perforation (502), described U-shaped hole (501) is fastened on the knife rest (2) by bolt (19), perforation (502) is fixed on cutterhead base plate (1) screwed hole 104 by the protruding circle of bolt (17) fit adjustment (18), make knife rest (2) can be in certain scope pendulum angle.
Described sliding rail (3) leading section is provided with depressed part (305), is fixed with movable crochet hook (6) in this depressed part (305), and described movable crochet hook (6) is positioned at same plane with sliding rail (3).
Described knife rest (2) front end is provided with an extending position (205), and this extending position (205) lower end is fixed with carriage (27).
Compared with prior art, the utlity model has following beneficial effect:
1, U-shaped hole and the perforation adjusting activity crochet hook of the utility model by the locating piece pendulum angle that stretches out anchor point and whole knife rest makes adjustment process unified, and is convenient.
2, by being installed in the auxiliary component carriage on the knife rest front end extending position, knife rest can steadily effectively be operated at course of action, increased the stability of thread cutting device.
3, crochet hook and sliding rail are in same plane, make crochet hook stressed along the center line transmission, have strengthened crochet hook and have operated performance stably.
Description of drawings:
Fig. 1 is the three-dimensional exploded view of thread cutting device.
Fig. 2 is the vertical view of thread cutting device.
Fig. 3, Fig. 4, Fig. 5 are the motion exemplary plot of thread cutting device.
Fig. 6 implements sliding rail and the movable crochet hook schematic diagram that joins for the utility model.
Fig. 7 implements the protruding packing ring of locating piece perforation for the utility model and cooperates side view.
Fig. 8 implements carriage assembling schematic diagram for the utility model.
Fig. 9 is the assembling schematic diagram of the utility model cutterhead base plate and knife rest.
Identifier declaration among the figure: cutterhead base plate 1, depression position 101, screw 102, screw 103, screw 104, knife rest 2, screwed hole 201, screwed hole 202, screwed hole 203, screwed hole 204, extending position 205, sliding rail 3, arc chute 301, microscler chute 302, microscler chute 303, screwed hole 304, depressed part 305, U-lag 306, transmission swing arm 4, perforation 401, spacer 5, U-shaped hole 501, perforation 502, movable crochet hook 6, perforation 601, cutting knife 7, cutter head carriage 8, compressing tablet 9, compressing tablet 10, adjustable plate 11, compressing tablet fixed block 12, carriage compressing tablet 13, bolt 14, bolt 15, bolt 16, bolt 17, regulate protruding circle 18, bolt 19, bolt 20, bolt 21, regulate protruding circle 22, bolt 23, bolt 24, regulate protruding circle 25, regulate protruding circle 26, carriage 27, U-shaped hole 28.
The specific embodiment:
For setting forth thought of the present utility model and purpose, the utility model is described in further details below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the utility model is the Sewing machines thread cutting device of chain stitch, it mainly is made up of cutterhead base plate 1, knife rest 2, sliding rail 3, spacer 5 and transmission swing arm 4, with the carriage 27 and the synthetic complete thread cutting device of electromagnet group that are assembled on the Sewing machines.
Wherein cutterhead base plate 1 has a depression position 101 and is provided with screw 102,103,104, depression is installed with knife rest 2 in the position 101, and the last plane of cutterhead base plate 1 and knife rest 2 plane parallel, knife rest 2 is provided with screwed hole 201,202,203,204 and extending position 205, described extending position 205 is fixing with carriage compressing tablet 13 by bolt 23, the front end of knife rest 2 is fixed with cutting knife 7 and crochet hook compressing tablet group 9,10 and adjustable plate 11, be installed with sliding rail 3 above the knife rest 2, described sliding rail 3 is provided with two microscler chutes 302,303 and arc chutes 301, the protruding circle 25 of microscler chute 303 usefulness bolts 15 fit adjustment is fixed on the screwed hole 203 of knife rest 2, microscler chute 302 usefulness bolts 16 are rotated with on knife rest 2 does the location, microscler chute 302 is slided before and after the effect of bolt 16, and the protruding circle 22 of arc chute 301 usefulness bolts 21 fit adjustment is fixed on cutterhead base plate 1 screwed hole 103.Sliding rail 3 leading sections are provided with depressed part 305, movable crochet hook 6 usefulness bolts 20 are fixed on the screwed hole 304 of depressed part 305, form a plane with sliding rail 3, and this is provided with and is beneficial to active force along the center line transmission, and spacing effect is arranged, strengthened the running performance of crochet hook.Spacer 5 is provided with two U-shaped holes 501 and a perforation 502.Its U-shaped hole 501 usefulness bolts 19 are fastened on the knife rest 2.The protruding circle 18 of perforation 502 usefulness bolts 17 fit adjustment is fixed on cutterhead base plate 1 screwed hole 104.
In the middle of the described transmission swing arm 4 perforation 401 is arranged, be fixed on the cutterhead base plate 1 by the protruding circle 26 of perforation 401 usefulness bolts 14 fit adjustment, an end of transmission swing arm 4 and the U-lag 306 on the sliding rail 3 interlock.
As Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the utility model operation principle is: after the end of job of Sewing machines sewing, in the time of carrying out the tangent line operation, thread cutting device drives transmission swing arm campaign, as shown in Figure 3 under the effect of external force.Transmission arm one end and sliding rail U-lag latch closure are together, because sliding rail is positioned on the knife rest by bolt by two microscler chutes and arc chute, and knife rest and locating piece U-shaped hole are rotated with bolt, another location perforation of locating piece is fixed on the cutterhead base plate with the protruding circle of bolt fit adjustment, thereby the movable crochet hook of knife rest, sliding rail and front end thereof is inwardly travelled forward accurately.As shown in Figure 3, Figure 4, thereby avoid the swing space of hook circle device, extending position and compressing tablet are clipped in the middle the carriage on the Sewing machines before the knife rest in addition, and knife rest is lifted up in the not meeting in motion process, can move stably.When sliding rail forward when electromagnet offers the stroke of transmission swing arm.As shown in Figure 5, the preceding hook portion of crochet hook is hooked the coil that will cut off respectively with the back hook portion, under external force, and when the transmission swing arm is resetted, the movable crochet hook of knife rest and sliding rail front end is outwards withdrawal backward under the drive of transmission arm, when transmission swing arm stroke finished, movable crochet hook was promptly withdrawn in the fixed cutting tool, thereby coil is cut off, and the crochet hook compressing tablet is clamped coil, thread cutting device is returned to initial position as shown in Figure 2 simultaneously, finishes the tangent line operation, treats next sewing operation.
After using a period of time as thread cutting device, find the thread cutting device knife rest, the angle of movable crochet hook swing, extension elongation has error, and the action that causes hook line and tangent line is when having some setbacks or slipping up, the bolt 19 and the bolt 17 that can unscrew on locating piece U-shaped hole 501 and the perforation 502 carry out the adjusting of front and back and pendulum angle, and thread cutting device can accurately be moved.
As shown in Figure 6, Fig. 6 implements sliding rail and the movable crochet hook schematic diagram that joins for the utility model.Wherein sliding rail 3 is fixedly mounted on the knife rest 2, and the perforation 601 on the movable crochet hook 6 then is fixedly mounted in the screwed hole 304 of sliding rail 3 front end depressed parts 305 by bolt 20.
As shown in Figure 7, Fig. 7 implements the protruding packing ring cooperation of spacer perforation side view for the utility model.Also fixing between described cutterhead base plate 1 and the knife rest 2 by spacer 5, wherein said spacer 5 is provided with two U-shaped holes 501 and a perforation 502, described U-shaped hole 501 is fastened on the knife rest 2 by bolt 19, perforation 502 is fixed on the cutterhead base plate 1 by the protruding circle 18 of bolt 17 fit adjustment, make knife rest 2 can be in certain scope pendulum angle.
As shown in Figure 8, the utility model carriage 27 is provided with U-shaped hole 28, and this U-shaped hole 28 is rotated with on Sewing machines with it by bolt, and concordant with extension bit 205 bottom surfaces in knife rest 2 the place aheads, when knife rest 2 working motions, play the support effect, make thread cutting device can carry out tangential motion more stably.
As shown in Figure 9, Fig. 9 is the assembling schematic diagram of the utility model cutterhead base plate and knife rest.Fixing between described cutterhead base plate 1 and the knife rest 2 by spacer 5, wherein said spacer 5 is provided with two U-shaped holes 501 and a perforation 502, described U-shaped hole 501 is fastened on screwed hole 202 on the knife rest 2 by bolt 19, perforation 502 on the spacer 5 then is fixed in the screw 104 on the cutterhead base plate 1 by the protruding circle 18 of bolt 17 fit adjustment, can make knife rest 2 can adjust length and the pendulum angle that stretches in certain scope by regulating bolt 19 and bolt 17.
More than the Sewing machines thread cutting device of chain stitch provided by the utility model is described in detail, used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (8)
1. the Sewing machines thread cutting device of a chain stitch, include cutterhead base plate (1), knife rest (2), sliding rail (3), transmission swing arm (4), carriage (27) and spacer (5), it is characterized in that: described cutterhead base plate (1) is provided with a depressed part (101), be fixed with knife rest (2) in this depressed part (101), be fixed with sliding rail (3) above the knife rest (2), front end is fixed with cutting knife (7).
2, the Sewing machines thread cutting device of chain stitch according to claim 1 is characterized in that: described sliding rail (3) is provided with U-lag (306).
3, the Sewing machines thread cutting device of chain stitch according to claim 2 is characterized in that: also be fixed with transmission swing arm (4) on the described cutterhead base plate (1), the U-lag (306) on these transmission swing arm (4) one ends and the sliding rail (3) interlocks.
4, the Sewing machines thread cutting device of chain stitch according to claim 1, it is characterized in that: also be provided with microscler chute (302) and (303) and an arc chute (301) on the described sliding rail (3), described microscler chute (303) is fixed on knife rest (2) upper screwed hole (203) by bolt (15) fit adjustment circle (25), described microscler chute (302) is rotated with on knife rest (2) by bolt (16), so that microscler chute (302) slides before and after the effect of bolt (16), described arc chute (301) is fixed on the screwed hole (103) of cutterhead base plate (1) by bolt (21) fit adjustment circle (22).
5, the Sewing machines thread cutting device of chain stitch according to claim 1 is characterized in that: described cutterhead base plate (1) is gone up plane and knife rest (2) plane parallel.
6, the Sewing machines thread cutting device of chain stitch according to claim 1, it is characterized in that: described sliding rail (3) leading section is provided with depressed part (305), with bolt (20) movable crochet hook (6) is fixed in depressed part (305) screwed hole (304) in this depressed part (305), described movable crochet hook (6) is positioned at same plane with sliding rail (3).
7, the Sewing machines thread cutting device of chain stitch according to claim 1, it is characterized in that: described spacer (5) is provided with two U-shaped holes (501) and a perforation (502), described U-shaped hole (501) is fastened on the knife rest (2) by bolt (19), perforation (502) is fixed on the screwed hole (104) of cutterhead base plate (1) by the protruding circle of bolt (17) fit adjustment (18), make knife rest (2) can be in certain scope pendulum angle.
8, the Sewing machines thread cutting device of chain stitch according to claim 1 is characterized in that: described knife rest (2) front end is provided with an extending position (205), and this extending position (205) lower end is fixed with carriage (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200934726U CN201172736Y (en) | 2008-04-14 | 2008-04-14 | Thread cutter of sewing machine by chain type stitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200934726U CN201172736Y (en) | 2008-04-14 | 2008-04-14 | Thread cutter of sewing machine by chain type stitch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201172736Y true CN201172736Y (en) | 2008-12-31 |
Family
ID=40199849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200934726U Expired - Lifetime CN201172736Y (en) | 2008-04-14 | 2008-04-14 | Thread cutter of sewing machine by chain type stitch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201172736Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401004A (en) * | 2017-08-11 | 2017-11-28 | 杰克缝纫机股份有限公司 | A kind of sewing machine trimming cutterhead |
-
2008
- 2008-04-14 CN CNU2008200934726U patent/CN201172736Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401004A (en) * | 2017-08-11 | 2017-11-28 | 杰克缝纫机股份有限公司 | A kind of sewing machine trimming cutterhead |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081231 |