CN1105078A - Buttonhole machine with device for cutting thread and holding needle - Google Patents
Buttonhole machine with device for cutting thread and holding needle Download PDFInfo
- Publication number
- CN1105078A CN1105078A CN94107947A CN94107947A CN1105078A CN 1105078 A CN1105078 A CN 1105078A CN 94107947 A CN94107947 A CN 94107947A CN 94107947 A CN94107947 A CN 94107947A CN 1105078 A CN1105078 A CN 1105078A
- Authority
- CN
- China
- Prior art keywords
- cam
- clamping device
- cutting
- sliding sash
- sewing
- 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.)
- Granted
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 35
- 230000033001 locomotion Effects 0.000 claims abstract description 21
- 238000009958 sewing Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 11
- 238000010417 needlework Methods 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 230000010355 oscillation Effects 0.000 claims 1
- 230000002195 synergetic effect Effects 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 239000011324 bead Substances 0.000 abstract 1
- 238000009940 knitting Methods 0.000 description 7
- 210000002268 wool Anatomy 0.000 description 7
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 6
- 235000011613 Pinus brutia Nutrition 0.000 description 6
- 241000018646 Pinus brutia Species 0.000 description 6
- 238000005755 formation reaction Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
- D05B3/06—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for sewing buttonholes
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
- D05B65/02—Devices for severing the needle or lower thread controlled by the sewing mechanisms
Abstract
A buttonhole sewing machine has a needle-thread cutting and clamping device (27), of which the lateral movement transverse to the feed direction (V) of a sewing-material slide frame (1), on the one hand, and of which the opening operation, on the other hand, are controlled by a cam mechanism (18). The cam mechanism (18) contains a specific cam (13, 15) for each of these two functions. The cam (13) for the transverse movement is partially adjustable relative to the cam (15) for the opening operation, with the result that the position of the thread end to be sewn over during the formation of the first buttonhole bead can be influenced.
Description
The present invention relates to a lockstitch button holder, belong to the technical field of claim 1 preamble with needlework cutting and clamping device.
A lockstitch button holder is disclosed in DE-PS961936, it has one by controllable needlework cuttings and the clamping device of cultrating of sewing mechanism, and it is decided what is right and what is wrong needlework and the line end head of feed side is fixed to avoid hindering threading when next sewing begins at the end of a working cycles.In addition, can make the line end head before when beginning sewing so places pin by cutting and clamping device, promptly the line end head is that stack is sewed when forming first keyhole pine knitting wool.For this purpose, this cutting and clamping device are placed in one the direction of feed of opposite joint thing sliding sash can be vertically and on the support of transverse movement mutually, this support and a cam synergy fixing on the holding device of seam thing sliding sash.A groove is set, itself and spacer pin mating reaction on the motion cutter of cutter sweep on cam.
Begin cutting and clamping device when vertically moving in sewing, its support slides along the guidance surface of a tilted configuration of cam, therefore, cuts and the clamping device direction of feed of the opposite joint thing sliding sash small quantity that transversely moves mutually.Such result is just moved to that side of left side buttonhole pine knitting wool by the line end head of fixing.In the sewing process of first buttonhole pine knitting wool, seam thing sliding sash just with cam towards this moment in the static cutting of this direction and the support motion of clamping device, according to this, the inclined guide of cam surface just along laterally promote this cut and clamping device more and more far away.Simultaneously, the spacer pin of this motion cutter arrives in the sphere of action of cam path, therefore, this cutting and clamping device be opened and this line end head released.
The structure of cam and size are so selected, that is, in the moment that wire clamp is opened, cutting and the transverse movement of clamping device or the rotary position of side direction can guarantee that the line end head has a stack sewing without doubt relatively.That is to say, the moment that this cutting and clamping device should opened, it is enough far away to leave the home position on the one hand, because if not the line end head just may stretch in the buttonhole slot after keyhole is finished cutting, can't turn round too far on the other hand, because otherwise, the end parts of line end head may extend laterally from the buttonhole pine knitting wool on the left side.But verified, cam has the deviation of small shape and size and/or the member of motion each other to have the gap of expansion can both cause one to the unsatisfied result of line end head stack sewing slightly.Like this, that is must carry out an additional processing to realize sewing preferably the result to cam.
Task of the present invention is to be provided with a needlework cutting and a clamping device that is used for lockstitch button holder, wherein, realizes the result of a undoubted ground terminal head stack sewing in simple mode.This task is by claim, and the scheme of characteristic solves.
By on the one hand for the transverse movement of cutting and clamping device with for its opening movement oneself a cam is set respectively on the other hand, with by other measure, be about to these cams and be arranged to each other that but part mode at least regulates, just can change transverse movement and the mutual performance of opening process by adjustment process in simple mode, therefore, the possibility that provides is, cutting and the transverse movement of clamping device and opening time point is definite so each other, and promptly the line end head is not only in the narrow but also sewing that fully superposes under the situation of the loose knitting wool of wide buttonhole.Also can eliminate different affecting factors in this way to the sewing result, for example, the dimensional discrepancy supported clearance of single assembly member, perhaps the special material performance of sewing thread.
Claim 2 provides a constructional variant scheme of cam mechanism of the present invention, and simultaneously, by regulation control plate, the line end head position of opening time point of this cutting and clamping device is relatively also just determined.
Elaborate the present invention by the embodiment that describes in the accompanying drawing below.
Fig. 1 is the side view of seam thing sliding sash and thread-cutting device and clamping device;
Fig. 2 is the vertical view of seam thing sliding sash and thread-cutting device and clamping device, wherein, represents that with solid line thread-cutting device and clamping device are cutting and clamping the later position of needlework, dot next sewing circulation beginning position before;
Fig. 3 is the vertical view of corresponding diagram 2, wherein, expression be that thread-cutting device and clamping device have just been opened later situation;
Fig. 4 is a buttonhole vertical view that has the needlework termination of stack sewing.
This lockstitch button holder practical structure and working method are consistent with disclosed machine in DE-PS961936, and therefore describing in detail has been unnecessary again.
This lockstitch button holder has a seam thing sliding sash 1 of catching the seam thing at seam thing upper surface, it is installed in the leading section of a supporting lever 3 pivotally by a Y-piece 2, supporting lever 3 be vertically movably and can around a level but become the axis of lateral arrangement rotating with the direction of feed V that stitches thing sliding sash 1.
This has only the shank 4 described of part to carry out becoming horizontal oscillating motion with the direction of feed V that stitches thing sliding sash 1 with the pin 5 of line sending.
Install a hornblock 6 with Y-piece 2 opposite opposed those side adjustable grounds on supporting lever 3, the leg plate 7 that its level is stretched out has the inclination shoulder 8 of a classification.In one of leg plate 7 smooth groove 9, settle a smooth control panel 10 by bolt 11 adjustable grounds, it has the guidance surface 12 of a same tilted configuration.The adjusting direction of this control panel 10 is to become landscape configuration with the direction of feed V of seam thing sliding sash 1.Cam 13 of control panel 10 common formations that this has the leg plate 7 of stagewise shoulder 8 and has guidance surface 12.
One of arrangement can be around the rotating lever 14 of vertical axis on the bottom side of leg plate 7, and it has the inclination shoulder 16 and the outstanding operation panel 17 that form another cam 15 downwards.These two cams 13 and cam mechanism 18 of 15 common formations.
One vertical removable, and can fix a support 20 on the rotating drive rod 19 around a longitudinal axis and a transverse axis.On this support 20, tighten a L shaped cutter 21, form a blade at its front end.On cutter 21, settle its rotating opposed cutter 22 relatively.On h shape end, the front of opposed cutter 22, form a blade, the blade of it and fixed cutting tool 21 forms a cutter sweep of cultrating.By a pin 23 and a bolt 24 fixing on fixed cutting tool 21, they two stretch in opposed cutter 22 in the corresponding hole of not describing, settle one to be squeezed in blade spring 25 on the blade end of opposed cutter 22 to give tight power, this spring 25 and opposed cutter 22 be common to constitute a wire clamp.A spacer pin that projects upwards 26 is set in the other end of opposed cutter 22, it can move to the operation panel 17 of lever 14 be in the effect be connected.Cutting of common formation of cutter sweep and wire clamp and clamping device 27.
Working method is as follows:
At the end in a sewing cycle, this cutting is closed in known manner with clamping device 27, therefore, the needlework above seam thing sliding sash 1 be held and after this straight line it is cut off.
For beginning next sewing process, 27 of this cutting and clamping devices move right about 5mm by the drive rod 19 as Fig. 2, and simultaneously, support 20 arrives the position of Fig. 2 dotted lines, and at this moment, support 20 rests on the guidance surface 12 of control panel 10.By this moving movement of cutting and clamping device 27, the line end head FE of the side of getting the raw materials ready that this is fixedly clamped is placed in before the syringe needle 5 and with the direction of feed V of seam thing sliding sash 1 and parallels.In order then to form the buttonhole pine knitting wool LR on the left side, then stitch thing sliding sash 1 and be moved to the left according to Fig. 2.In this moving process, the guidance surface 12 of control panel 10 is just done laterally extruding outwards of relative direction of feed V to support 20, the result, and nipped line end head FE just is pulled to the middle part of left side pine knitting wool LR.The degree that this line end head FE laterally pulls out motion depends on the adjusting position of control panel 10, that is to say that it is far away more that this control panel 10 leaves supporting lever 3, then line end head FE from Central Line's side direction of buttonhole outwards pull out far away more.
In case in the process that seam thing sliding sash 1 continues to move, when the shoulder 16 of lever 14 is run into support 20,14 beginnings of lever revolution counterclockwise.As the result of this gyration, be that operation panel 17 is run on the spacer pin 26 of opposed cutter 22, and this cutter is turned back on the open position that Fig. 3 describes.In cutting and the process opened of clamping device 27, the end parts of this line end head FE unclamp freely and after this fully stack sew.
After online termination FE was released, fixing shoulder 8 just bumped on support 20, therefore can make this cutting of opening and clamping device 27 laterally rotate a further quantity on the outward direction.This cutting simultaneously and clamping device 27 position occupied are formed for carrying out the home position that next wire clamp is held process and cutting process at sewing circulation end.
Claims (2)
1, lockstitch button holder, have holding device of a usefulness and make seam thing sliding sash preceding and the back motion, the direction of feed with seam thing sliding sash with a supporting line sending pin becomes the shank of vertical oscillation and has a line cutting and clamping device, and it is used for that end a sewing circulation cuts off needlework and for beginning before next sewing process places syringe needle with the line end head of feed side for the stack sewing; Cutting of this line and clamping device be placed in one not only parallel with the direction of feed of stitching the thing sliding sash and also with its laterally movably on the support, simultaneously, not only to open motion be controllable by a cam mechanism of settling on the holding device of seam thing sliding sash for the transverse movement of this cutting and clamping device but also its, it is characterized in that:
This cam mechanism (18), to open motion with the transverse movement of clamping device (27) with it and separate mutually in order to cut, respectively have oneself a cam (13,15) to be used to control above-mentioned two motions according to functional requirement, and their (13,15) are that part is adjustable at least each other.
2, by the described lockstitch button holder of claim 1, it is characterized in that, holding device (3 at seam thing sliding sash (1), 6) go up one of arrangement and the synergistic lever of spacer pin (26) (14), this lever (14) has an inclination shoulder (16) that forms a cam (15), and, another cam (13) is by holding device (3,6) one relative this shoulder with of shoulder (8) fixing and that be in tilted layout control panel (10) adjustable and that have a guidance surface that is in tilted layout (12) equally constitutes, simultaneously, this guidance surface (12) is according to the adjusting position of control panel (10), sometimes many, cover this fixing shoulder (8) sometimes less.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4331746A DE4331746C2 (en) | 1993-09-20 | 1993-09-20 | Buttonhole sewing machine with a needle thread cutting and clamping device |
| DEP4331746.4 | 1993-09-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1105078A true CN1105078A (en) | 1995-07-12 |
| CN1045324C CN1045324C (en) | 1999-09-29 |
Family
ID=6498015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94107947A Expired - Fee Related CN1045324C (en) | 1993-09-20 | 1994-06-28 | Buttonhole machine with device for cutting thread and holding needle |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH07100274A (en) |
| KR (1) | KR100321537B1 (en) |
| CN (1) | CN1045324C (en) |
| DE (1) | DE4331746C2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043481C (en) * | 1995-08-30 | 1999-05-26 | 高林股份有限公司 | Automatic thread-severing device for bearded needle longitudinal multi-needle type sewing machine |
| CN100365188C (en) * | 2001-07-26 | 2008-01-30 | 杜尔克普-阿德勒股份公司 | Sewing machine, especially buttonhole-lockstitching sewing machine, with string fastening and cutting device |
| CN100404745C (en) * | 2000-04-04 | 2008-07-23 | 重机公司 | Button-sewing machine |
| CN100415975C (en) * | 1997-06-27 | 2008-09-03 | 重机株式会社 | Buttonhole sewing machine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10066310B4 (en) * | 1999-12-16 | 2018-01-04 | Juki Corp. | Thread cutter for a sewing machine |
| JP4492178B2 (en) * | 2004-03-29 | 2010-06-30 | ブラザー工業株式会社 | sewing machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE961936C (en) * | 1942-11-12 | 1957-04-11 | Pfaff Ag G M | Buttonhole sewing machine |
| GB1584277A (en) * | 1976-10-30 | 1981-02-11 | Toelle G | Buttonhole-sewing machine |
| JPH0392192A (en) * | 1989-09-04 | 1991-04-17 | Brother Ind Ltd | Needle thread holder of sewing machine |
| JPH0544078A (en) * | 1991-08-09 | 1993-02-23 | Nippon Steel Corp | Surface treated steel plate for vessel excellent in rust preventing property and appearance |
-
1993
- 1993-09-20 DE DE4331746A patent/DE4331746C2/en not_active Expired - Fee Related
-
1994
- 1994-06-28 CN CN94107947A patent/CN1045324C/en not_active Expired - Fee Related
- 1994-08-19 JP JP6195478A patent/JPH07100274A/en not_active Ceased
- 1994-09-06 KR KR1019940022297A patent/KR100321537B1/en not_active IP Right Cessation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043481C (en) * | 1995-08-30 | 1999-05-26 | 高林股份有限公司 | Automatic thread-severing device for bearded needle longitudinal multi-needle type sewing machine |
| CN100415975C (en) * | 1997-06-27 | 2008-09-03 | 重机株式会社 | Buttonhole sewing machine |
| CN100415974C (en) * | 1997-06-27 | 2008-09-03 | 重机株式会社 | Buttonhole sewing machine |
| CN100503934C (en) * | 1997-06-27 | 2009-06-24 | 重机株式会社 | Buttonhole machine |
| CN100404745C (en) * | 2000-04-04 | 2008-07-23 | 重机公司 | Button-sewing machine |
| CN100365188C (en) * | 2001-07-26 | 2008-01-30 | 杜尔克普-阿德勒股份公司 | Sewing machine, especially buttonhole-lockstitching sewing machine, with string fastening and cutting device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4331746C2 (en) | 1995-11-02 |
| KR950008776A (en) | 1995-04-19 |
| DE4331746A1 (en) | 1995-03-23 |
| CN1045324C (en) | 1999-09-29 |
| JPH07100274A (en) | 1995-04-18 |
| KR100321537B1 (en) | 2002-11-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |