CN101805965A - Left-hand type sewing machine - Google Patents
Left-hand type sewing machine Download PDFInfo
- Publication number
- CN101805965A CN101805965A CN201010149198A CN201010149198A CN101805965A CN 101805965 A CN101805965 A CN 101805965A CN 201010149198 A CN201010149198 A CN 201010149198A CN 201010149198 A CN201010149198 A CN 201010149198A CN 101805965 A CN101805965 A CN 101805965A
- Authority
- CN
- China
- Prior art keywords
- shaft
- feed
- sewing machine
- material feeding
- feeding
- 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.)
- Pending
Links
Images
Abstract
The invention relates to a left-hand type sewing machine, which belongs to the technical field of a sewing machine. An upper shaft and lower shaft transmission mechanism is characterized in that the middle part of an upper shaft and a lower shaft realize the equidirectional transmission of the upper shaft and the lower shaft through engaging transmission of two pairs of bevel gears by a vertical shaft, a needle rod moving mechanism and a thread picking mechanism are arranged on the right side of the upper shaft, a cloth feeding and material feeding mechanism is correspondingly arranged on the lower shaft, a material feeding shaft and a feed lifting rock shaft which are positioned under the needle rod moving mechanism, a cloth feeding and material feeding regulation mechanism is correspondingly arranged on the left side of the upper shaft, the material feeding shaft and the feed lifting rock shaft, a backward material feeding spanner is arranged on the left side of the cloth feeding and material feeding regulation mechanisms, and the material feeding shaft and the feed lifting rock shaft are respectively arranged at the front side and the back side of the lower shaft. When the upper shaft carries out anticlockwise rotation, the backward material feeding spanner can control the cloth feeding and material feeding mechanism to do forward material feeding movement or backward material feeding movement, so the operation of the sewing machine by the left hand becomes possible, and one person can simultaneously operate a left handle sewing machine and a right handle sewing machine for sewing two rows of sewing threads at the same time. The work efficiency is greatly improved, and the production cost is reduced. The invention is particularly suitable for users using left hands for operating the sewing machine handles.
Description
Technical field
The invention belongs to the sewing machine technique field, relate to the left-hand type sewing machine that handwheel is arranged in operator's left side.
Background technology
The rotation handwheel of existing sewing machine is arranged in operator's right side, it is main generally handling right hand wheel with the right hand, often be referred to as right hand formula Sewing machines, its weak point is: the one, and incompatibility left-handed operation handwheel personnel's operation, the 2nd, can not cooperate with right hand formula Sewing machines make simultaneously have about the dress ornament of two sutures, for example: towel, bath towel, blanket etc.
Summary of the invention
The purpose of this invention is to provide a kind of left-hand type sewing machine that left-handed operation handwheel personnel use that is suitable for.
The object of the present invention is achieved like this:
Left-hand type sewing machine, include needle bar mechanism, thread take-up mechanism, shaft transmission up and down, the work feed feed mechanism, the work feed feed regulation, the spanner of falling the feeding, shaft transmission is to go up the rotations in the same way that realize going up lower shaft by two pairs of bevel gear engaged transmission with vertical shaft between the middle part of axle and the lower shaft up and down, needle bar mechanism and thread take-up mechanism are arranged on the right side of axle, the corresponding lower shaft that is arranged on the needle bar mechanism below of work feed feed mechanism, on feed spool and the feed lifting rock shaft, the work feed feed regulation is arranged on axle, the left side of feed spool and feed lifting rock shaft, the spanner of falling the feeding is arranged on the left side of work feed feed regulation, feed spool and feed lifting rock shaft are separately positioned on the front and back side of lower shaft, last axle is regarded as when rotating counterclockwise from right to left, and pulling or pulling down of the spanner of falling the feeding controlled the work feed feed mechanism to positive feeding campaign of previous crops or the do motion of falling the feeding backward.
Above-mentioned upward axle is 1: 2 with the gearratio of lower shaft.
Above-mentioned thread take-up mechanism is: the right side of going up axle is fixed with needle bar crank, and an end of the eccentric shaft of needle bar crank and wire jumper crank is hinged, and the other end of wire jumper crank is provided with through wires hole, and the middle part of wire jumper crank is hinged with the wire jumper fork.
Above-mentioned needle bar mechanism is: the eccentric shaft of needle bar crank is hinged in the upper end of the right side of wire jumper crank and shank connecting rod, and the lower end and the side shaft on the shank of shank connecting rod are hinged, and the side shaft on the shank slides in gathering sill.
The outstanding compared to existing technology advantage of the present invention is:
1, the present invention since about through-drive be set to transmission in equidirectional 1: 2, can adopt the rotary shuttle mechanism of common flat seam machine, realized the versatility of rotating shuttle structure.
2, the present invention becomes the thread take-up mechanism and the motion of needle bar mechanism that to go up axle be that the main shaft mode that (axle is from the direction of thread take-up mechanism to the work feed feed regulation on the Sewing machines) rotates according to counterclockwise realizes cooperating of shank motion and take-up function, can realize that a people operates left-hand type sewing machine and right hand wheel Sewing machines simultaneously, realize once making a seam part about two sutures, and concerning left-hand type sewing machine, can also guarantee the uniformity of presser feet direction and right handles sewing-machine foot direction, and the convenience of operating personnel's threading and operation, realize making synchronously, raise the efficiency.
3: the present invention rotates counterclockwise the adjusting spanner by feed regulation, can realize that refunding of Sewing machines make, and can make things convenient for the left-handed operation personnel to realize refunding the adjusting and the control of seam on direction of operating, has increased operability can two Sewing machiness the time.
Description of drawings
The schematic perspective view of the main drive mechanism that Fig. 1 watches from the rear side upper right side for the present invention, the arrow indication turns to be defined as and is rotated counterclockwise direction among the figure;
Fig. 2 is the schematic perspective view of the main drive mechanism that the present invention does not install the spanner of falling the feeding, left hand is taken turns and watch from the upper left side;
Fig. 3 is near the partial structurtes schematic perspective view shaft transmission up and down of the present invention and the work feed feed regulation;
Fig. 4 is near the partial structurtes schematic perspective view needle bar mechanism and the thread take-up mechanism;
Fig. 5 is near the partial structurtes schematic perspective view the spanner of falling the feeding.
The specific embodiment
The invention will be further described with specific embodiment below, referring to Fig. 1-5:
Left-hand type sewing machine, include needle bar mechanism, thread take-up mechanism, shaft transmission up and down, work feed feed mechanism 80, the work feed feed regulation, the spanner of falling the feeding 90, up and down shaft transmission be the middle part of going up axle 1 with lower shaft 4 between pass through two pairs of bevel gears 11 and 12 with vertical shaft 2,13 and 14 engaged transmission realize to go up (turn to counterclockwise---referring to Fig. 1) in the same way of lower shaft and rotate, needle bar mechanism and thread take-up mechanism are arranged on the right side of axle 1, the work feed feed mechanism 80 corresponding lower shafts 4 that are arranged on the needle bar mechanism below, on feed spool 3 and the feed lifting rock shaft 5, the work feed feed regulation is arranged on axle 1, the left side of feed spool 3 and feed lifting rock shaft 5, the spanner of falling the feeding 90 is arranged on the left side of work feed feed regulation, feed spool 3 is arranged on the front side of lower shaft 4, feed lifting rock shaft is arranged on the rear side of lower shaft 4, last axle 1 is regarded as when rotating counterclockwise from right to left, and the spanner of falling the feeding 90 is in to be pulled or pull upper/lower positions and can control work feed feed mechanism 80 to positive feeding campaign of previous crops or the do motion of falling the feeding backward.
The above-mentioned gearratio of going up axle 1 and lower shaft 4 is 1: 2.
Above-mentioned thread take-up mechanism is: the right side of going up axle 1 is fixed with needle bar crank 32, and an end of the eccentric shaft of needle bar crank 32 and wire jumper crank 31 is hinged, and the other end of wire jumper crank 31 is provided with through wires hole 311, and the middle part of wire jumper crank 31 is hinged with wire jumper fork 36.
Above-mentioned needle bar mechanism is: the eccentric shaft of needle bar crank 32 is hinged in the upper end of the right side of wire jumper crank 31 and shank connecting rod 33, side shaft 351 on the lower end of shank connecting rod 33 and the shank 35 is hinged, and the end slide block of the side shaft 351 on the shank slides in gathering sill 34.
The course of work of the present invention:
Pull left hand wheel 80 or starting switch drives left hands wheel 80 by belt 81 and goes up axle 1 by running counterclockwise, when the spanner of falling the feeding 90 is in and pulls the position with motor with left hand, the left-hand type sewing machine entry into service, needle bar crank 32 drives thread take-up mechanism and shank is synchronized with the movement, realize that shank 35 down stings cloth, the thread take-up tension lever 312 of wire jumper crank 31 is for line, shank 35 moves upward, thread take-up tension lever 312 quick take-ups, and the process of its shank and thread take-up mechanism motion is the same with the running of common flat seam machine.
The bevel gear 12 that is fixed on vertical shaft 2 upper ends be fixed on bevel gear 11 on the axle 1 in the downside engaged transmission of bevel gear 11, be fixed on the bevel gear 13 of vertical shaft 2 lower ends and be fixed on bevel gear 14 on the lower shaft 4 in the downside engaged transmission of bevel gear 14, the axle 1 and the equidirectional rotation of lower shaft 4 in the realization, bevel gear 11,12,13,14 are 1: 2 gearratio design running according to the rotating ratio of last lower shaft.
See that from the side sending of left-hand type sewing machine goes on foot feed mechanism and common flat seam machine is similar substantially, difference is that it is that just front and back are opposite with angulation and common flat seam machine that the direction of eccentric wheel 24 off-centre is regulated in its installation site and feeding, the feed mechanism that only in this way could guarantee the left-handed operation personnel is at last axle 1 counterclockwise in the operation process, and sending the step feed mechanism is feeding forward.Corresponding work feed feed regulation also is the same with common flat seam machine, but be applicable to that the left-handed operation personnel pull the spanner of falling the feeding 90 by left hand and realize refunding seam, the handle portion 92 of the spanner of falling the feeding 90 is arranged on the rear portion, left side of left-hand type sewing machine, is equivalent to the spanner of falling the feeding that install on right hand formula Sewing machines right side is moved to the left side installation of left-hand type sewing machine.
Needle bar mechanism of the present invention, thread take-up mechanism, the operation principle and the detailed structure of shaft transmission, work feed feed mechanism, work feed feed regulation, the spanner of falling the feeding and driving mechanism etc. are close with common flat seam machine up and down, are not described in detail in this.
In a word, structure of the present invention, be equivalent to right hand formula Sewing machines to the left or to the right " mirror image " become left-hand type sewing machine, though at first glance most of structure is identical or close with right hand formula Sewing machines, but in order to guarantee the forward work feed identical or to refund seam with right hand formula Sewing machines, done the corresponding techniques design turning to of last lower shaft, similar accessory is installed to the right side by the left side, when being installed to the left side by the right side, most of installation portion has been made corresponding adjustment and change, make the left-handed operation Sewing machines become possibility, simultaneously, experienced operators can a people be operated left-hand type sewing machine simultaneously and is installed in the left side, right hand formula Sewing machines is when two flat seam machine of right side installation, can make two sutures on the same dress ornament simultaneously, increase work efficiency greatly, reduce production costs, the personage of suitable especially left-handed operation Sewing machines handwheel uses.
Claims (4)
1. left-hand type sewing machine, include needle bar mechanism, thread take-up mechanism, shaft transmission up and down, the work feed feed mechanism, the work feed feed regulation, the spanner of falling the feeding, it is characterized in that: shaft transmission is to go up the rotations in the same way that realize going up lower shaft by two pairs of bevel gear engaged transmission with vertical shaft between the middle part of axle and the lower shaft up and down, needle bar mechanism and thread take-up mechanism are arranged on the right side of axle, the corresponding lower shaft that is arranged on the needle bar mechanism below of work feed feed mechanism, on feed spool and the feed lifting rock shaft, the work feed feed regulation is arranged on axle, the left side of feed spool and feed lifting rock shaft, the spanner of falling the feeding is arranged on the left side of work feed feed regulation, feed spool and feed lifting rock shaft are separately positioned on the front and back side of lower shaft, last axle is regarded as when rotating counterclockwise from right to left, and pulling or pulling down of the spanner of falling the feeding controlled the work feed feed mechanism to positive feeding campaign of previous crops or the do motion of falling the feeding backward.
2. left-hand type sewing machine according to claim 1 is characterized in that: described upward axle is 1: 2 with the gearratio of lower shaft.
3. left-hand type sewing machine according to claim 1, it is characterized in that: described thread take-up mechanism is: the right side of going up axle is fixed with needle bar crank, one end of the eccentric shaft of needle bar crank and wire jumper crank is hinged, the other end of wire jumper crank is provided with through wires hole, and the middle part of wire jumper crank is hinged with the wire jumper fork.
4. left-hand type sewing machine according to claim 1, it is characterized in that: described needle bar mechanism is: the eccentric shaft of needle bar crank is hinged in the upper end of the right side of wire jumper crank and shank connecting rod, the lower end and the side shaft on the shank of shank connecting rod are hinged, and the side shaft on the shank slides in gathering sill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010149198A CN101805965A (en) | 2010-04-14 | 2010-04-14 | Left-hand type sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010149198A CN101805965A (en) | 2010-04-14 | 2010-04-14 | Left-hand type sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101805965A true CN101805965A (en) | 2010-08-18 |
Family
ID=42607912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010149198A Pending CN101805965A (en) | 2010-04-14 | 2010-04-14 | Left-hand type sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101805965A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104928860A (en) * | 2015-06-11 | 2015-09-23 | 张文勇 | Chain type sewing machine special for knitted hat |
| TWI588315B (en) * | 2012-05-25 | 2017-06-21 | 都寇帕鷹股份有限公司 | Sewing machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4612866A (en) * | 1984-06-15 | 1986-09-23 | Rockwell-Rimoldi, S.P.A. | Sewing machine with a bridge-type structure |
| US5167195A (en) * | 1986-04-09 | 1992-12-01 | Carlo Guerreschi | Apparatus to be fitted up on a conventional sewing machine for simultaneously sewing parallel lines of stitches |
| CN2584626Y (en) * | 2002-09-18 | 2003-11-05 | 上海宝狮缝纫机有限公司 | Device for adjusting length of stitch for forward-backward feeding mechanism of sewing machine |
| CN1791714A (en) * | 2003-05-16 | 2006-06-21 | 雷克斯·诺曼·道格拉斯·普尔克 | Domestic sewing machine |
| CN201016135Y (en) * | 2007-01-24 | 2008-02-06 | 施向安 | Flat seaming machine capable of tailoring single-thread chain manner stitch seam |
-
2010
- 2010-04-14 CN CN201010149198A patent/CN101805965A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4612866A (en) * | 1984-06-15 | 1986-09-23 | Rockwell-Rimoldi, S.P.A. | Sewing machine with a bridge-type structure |
| US5167195A (en) * | 1986-04-09 | 1992-12-01 | Carlo Guerreschi | Apparatus to be fitted up on a conventional sewing machine for simultaneously sewing parallel lines of stitches |
| CN2584626Y (en) * | 2002-09-18 | 2003-11-05 | 上海宝狮缝纫机有限公司 | Device for adjusting length of stitch for forward-backward feeding mechanism of sewing machine |
| CN1791714A (en) * | 2003-05-16 | 2006-06-21 | 雷克斯·诺曼·道格拉斯·普尔克 | Domestic sewing machine |
| CN201016135Y (en) * | 2007-01-24 | 2008-02-06 | 施向安 | Flat seaming machine capable of tailoring single-thread chain manner stitch seam |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI588315B (en) * | 2012-05-25 | 2017-06-21 | 都寇帕鷹股份有限公司 | Sewing machine |
| CN104928860A (en) * | 2015-06-11 | 2015-09-23 | 张文勇 | Chain type sewing machine special for knitted hat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105113152B (en) | Sewing machine | |
| CN106948100B (en) | Automatic change multi-functional sack closer | |
| US9027488B2 (en) | Direct drive cloth feeding mechanism of sewing machine | |
| CN101805965A (en) | Left-hand type sewing machine | |
| CN103361893A (en) | Household multifunctional computer sewing machine | |
| TWI515347B (en) | Sewing Machine | |
| JP6045318B2 (en) | sewing machine | |
| CN103469499A (en) | Fabric conveying mechanism for back tacking of sewing machine | |
| CN201016135Y (en) | Flat seaming machine capable of tailoring single-thread chain manner stitch seam | |
| CN106835514A (en) | The cloth-dragging wheel and tooth of a kind of flat seam machine are adjusted in synchronism system | |
| JPH05295648A (en) | Sewing machine for decoration | |
| EP1728910A1 (en) | Method and device for backtacking or tying off at the beginning or end of a seam in running-stitch sewing machines | |
| US4140069A (en) | Sewing method for the formation of a double back stitch seam and device for carrying out the method | |
| CN101275340B (en) | Button sewing machine | |
| US7441508B2 (en) | Mattress edge sewing machine | |
| CN210796859U (en) | Novel sewing machine lead wire cloth feeding mechanism | |
| JP5420606B2 (en) | Intermittent stitch sewing machine | |
| CN102260966B (en) | Double-sided double-row quilting and embroidering integrated machine | |
| JP3868805B2 (en) | Sewing machine with root winding button | |
| CN101377041B (en) | Kettle contraposition device of sewing machine | |
| JPH03500730A (en) | sewing machine | |
| CN102433694A (en) | Transmission mechanism of three-needle lockstitch sewing machine | |
| CN202107873U (en) | Composite feeding mechanism for flat seaming machine | |
| CN216129757U (en) | Sewing machine thread feeding device convenient to assemble and disassemble | |
| CN107164883A (en) | A kind of automatic cloth feed formula sewing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100818 |