CN106400325A - Lower backstitch mechanism of sewing machine - Google Patents
Lower backstitch mechanism of sewing machine Download PDFInfo
- Publication number
- CN106400325A CN106400325A CN201610375052.6A CN201610375052A CN106400325A CN 106400325 A CN106400325 A CN 106400325A CN 201610375052 A CN201610375052 A CN 201610375052A CN 106400325 A CN106400325 A CN 106400325A
- Authority
- CN
- China
- Prior art keywords
- shaft sleeve
- upper shaft
- shift fork
- sewing machine
- parts 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.)
- Withdrawn
Links
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/10—Work-feeding means with rotary circular feed members
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a lower backstitch mechanism of a sewing machine and belongs to the technical field of design of sewing machine devices. The mechanism comprises a lower feeding wheel shaft, an upper shaft sleeve, a right poking fork, a driving shaft, a shell body, a left poking fork, a lower shaft sleeve and a crank, wherein the driving shaft is connected to the left poking fork and the right poking form by a rotation pair; the left poking fork and the right poking fork are connected to the upper shaft sleeve and the lower shaft sleeve by rotation pairs respectively; the lower feeding wheel shaft is sleeved by the upper shaft sleeve and the lower shaft sleeve; spline grooves are processed in inner holes of the upper shaft sleeve and the lower shaft sleeve; the lower feeding wheel shaft is fixed to the upper shaft sleeve and the lower shaft sleeve through one-way bearing coordination; only when the upper shaft sleeve and the lower shaft sleeve are rotated to the same direction, the lower feeding wheel shaft can be driven to rotate at the same time; and in backward rotation, the lower feeding wheel shaft is not rotated. The lower backstitch mechanism of the sewing machine disclosed by the invention is characterized in that the crank is installed at a center-left position of the driving shaft; driving is convenient and flexible; and forward sewing and backstitch actions can be achieved conveniently.
Description
Technical field
The present invention relates to sewing machine device design field, under more particularly to a kind of sewing machine
Backstitch mechanism.
Background technology
With the raising of people's living standard and production efficiency, people to clothes renewal speed with
And increasing to the demand of clothing, therefore industrial sewing machine plays in the life of people
More and more important role, due to the specific demand of sewing clothes, sewing machine is in sewing process
Constantly to carry out along seam and backstitch operation, and be according to specific along the time stitched and backstitch
Sewing situation determines, traditional industrial sewing machine is unreasonable due to structure design, feeding wheel drive
Inconvenience, is easy to, along stitching and backstitching, situations such as wrap up in line, causes stitched clothing during conversion
Damage, bothers, takes along stitching and backstitching operation, sewing efficiency is low, therefore design one very much
Plant left shift fork and right shift fork drives conveniently, flexibly, conveniently, parts feeding axle is just for drawing-inroller motion
The down on sewing machine seam mechanism that reversion is easily realized seems very necessary.
Content of the invention
The purpose of the present invention is exactly the defect in order to overcome prior art, devises a kind of sewing machine
Under backstitch mechanism.
The required technical problem solving of the present invention can be achieved through the following technical solutions：
Mechanism is backstitched, including drive shaft, left shift fork, right shift fork, described drive under a kind of sewing machine
Pass through between moving axis and described left shift fork and described right shift fork to rotate secondary connection, send under also including
Material wheel axle, Upper shaft sleeve, housing, Lower shaft sleeve, crank, described left shift fork, described right shift fork divide
Do not pass through with described Upper shaft sleeve, described Lower shaft sleeve to rotate secondary be connected, described Upper shaft sleeve, described under
Axle sleeve is all enclosed within the outside of described lower parts feeding axle, the endoporus of described Upper shaft sleeve and described Lower shaft sleeve
All it is machined with spline.Adopt between described lower parts feeding axle and described Upper shaft sleeve and described Lower shaft sleeve
Coordinated with unilateral bearing and fix.
Outside unilateral bearing between described lower parts feeding axle and described Upper shaft sleeve and described Lower shaft sleeve
Surface Machining has spline tooth, and the spline of described Upper shaft sleeve and described Lower shaft sleeve moves to spline tooth
Outside engage.
The center-left of described drive shaft is provided with described crank, described crank and described left shift fork
And described right shift fork formed by bearing pin rotate secondary.
In described housing, magnet is installed, described lower parts feeding axle passes through rod member and magnet adsorption.
Due to employing above technical scheme, the invention has the advantages that：
Using drive shaft, left shift fork, right shift fork, lower parts feeding axle, Upper shaft sleeve, housing, under
Axle sleeve, crank combine and backstitch mechanism under designed sewing machine, lower parts feeding axle and Upper shaft sleeve
Unilateral bearing outer surface and Lower shaft sleeve between is machined with spline tooth, the flower of Upper shaft sleeve and Lower shaft sleeve
The outside that keyway moves to spline tooth engages, then descend parts feeding axle with Upper shaft sleeve and Lower shaft sleeve
Rotate together, realize the motion of drawing-inroller, the center-left of drive shaft is provided with crank, drives
Convenient, flexible, in housing, magnet is installed, lower parts feeding axle passes through rod member and magnet adsorption,
Conveniently realize the suitable seam of lower parts feeding axle and backstitch action.
Brief description
Fig. 1 is present configuration schematic diagram；
The each assembly of in figure and reference are respectively：1st, lower parts feeding axle；2nd, Upper shaft sleeve；3、
Right shift fork；4th, drive shaft；5th, housing；6th, left shift fork；7th, Lower shaft sleeve；8th, crank.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention realizes are easy to
Understand and understand, with reference to being specifically illustrating, the present invention is expanded on further.
Mechanism is backstitched, including lower parts feeding axle 1, Upper shaft sleeve 2, right shift fork under a kind of sewing machine
3rd, drive shaft 4, housing 5, left shift fork 6, Lower shaft sleeve 7, crank 8, drive shaft 4 and a left side
Pass through between shift fork 6 and right shift fork 3 to rotate secondary connection, left shift fork 6, right shift fork 3 are respectively
Pass through rotation pair with Upper shaft sleeve 2, Lower shaft sleeve 7 to be connected, Upper shaft sleeve 2, Lower shaft sleeve 7 are all enclosed within
The outside of lower parts feeding axle 1, the endoporus of Upper shaft sleeve 2 and Lower shaft sleeve 7 is all machined with spline.
Unilateral bearing cooperation is adopted to fix between lower parts feeding axle 1 and Upper shaft sleeve 2 and Lower shaft sleeve 7, on
Axle sleeve 2 and Lower shaft sleeve 7 just can drive when only rotating toward a direction lower parts feeding axle 1 and its
Rotate together, opposite direction rotates parts feeding axle 1 at present and do not turn.
Unilateral bearing outer surface processing between lower parts feeding axle 1 and Upper shaft sleeve 2 and Lower shaft sleeve 7
There is a spline tooth, the outside that the spline of Upper shaft sleeve 2 and Lower shaft sleeve 7 moves to spline tooth is nibbled with it
Close, then descend parts feeding axle 1 to rotate with Upper shaft sleeve 2 and Lower shaft sleeve 7, realize drawing-inroller
Motion.
The center-left of drive shaft 4 is provided with crank 8, crank 8 and left shift fork 6 and right group
Fork 3 is formed by bearing pin and rotates pair, and drive shaft 4 rotates, and crank 8 drives left shift fork 6 and the right side
Shift fork 3 moves, and it is convenient, flexibly to drive.
In housing 5, magnet is installed, lower parts feeding axle 1 passes through rod member and magnet adsorption, adopts
The suction-operated of magnet makes Upper shaft sleeve 2 and Lower shaft sleeve 7 in different time sections and unilateral bearing
The spline tooth engagement of outside, conveniently realizes the suitable seam of lower parts feeding axle 1 and backstitches action.
Backstitch mechanism under sewing machine disclosed in this invention, lower parts feeding axle 1 and Upper shaft sleeve 2 and
Unilateral bearing outer surface between Lower shaft sleeve 7 is machined with spline tooth, Upper shaft sleeve 2 and Lower shaft sleeve 7
Spline move to the outside of spline tooth and engage, then descend parts feeding axle 1 with Upper shaft sleeve 2
Rotate together with Lower shaft sleeve 7, realize the motion of drawing-inroller, the center-left installation of drive shaft 4
There is crank 8, drive convenient, flexible, in housing 5, magnet is installed, lower parts feeding axle 1 leads to
Cross rod member and magnet adsorption, conveniently realize the suitable seam of lower parts feeding axle 1 and backstitch action.
Have been shown and described above the present invention general principle, principal character and the present invention excellent
Point.It should be understood by those skilled in the art that, the present invention is not restricted to the described embodiments, on
State merely illustrating the principles of the invention described in embodiment and specification, without departing from the present invention
On the premise of spirit and scope, the present invention also has various changes and modifications, these changes and improvements
Both fall within scope of the claimed invention.Claimed scope is by appended right
Claim and its equivalent define.
Claims (4)
1. backstitch mechanism under a kind of sewing machine, including drive shaft, left shift fork, right shift fork, institute
State and pass through between drive shaft and described left shift fork and described right shift fork to rotate secondary connection, its feature
It is：Also include lower parts feeding axle, Upper shaft sleeve, housing, Lower shaft sleeve, crank, a described left side is dialled
Fork, described right shift fork pass through rotation pair with described Upper shaft sleeve, described Lower shaft sleeve respectively and are connected, institute
State Upper shaft sleeve, described Lower shaft sleeve is all enclosed within the outside of described lower parts feeding axle, described Upper shaft sleeve and
The endoporus of described Lower shaft sleeve is all machined with spline.Described lower parts feeding axle and described Upper shaft sleeve and
Unilateral bearing cooperation is adopted to fix between described Lower shaft sleeve.
2. backstitch mechanism under a kind of sewing machine according to claim 1 it is characterised in that：Institute
The unilateral bearing outer surface stated between lower parts feeding axle and described Upper shaft sleeve and described Lower shaft sleeve adds
Work has spline tooth, and the spline of described Upper shaft sleeve and described Lower shaft sleeve moves to the outside of spline tooth
Engage.
3. backstitch mechanism under a kind of sewing machine according to claim 1 it is characterised in that：Institute
State the center-left of drive shaft and described crank, described crank and described left shift fork and institute are installed
State right shift fork and rotation pair is formed by bearing pin.
4. backstitch mechanism under a kind of sewing machine according to claim 1 it is characterised in that：Institute
State in housing and magnet is installed, described lower parts feeding axle passes through rod member and magnet adsorption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610375052.6A CN106400325A (en) | 2016-05-30 | 2016-05-30 | Lower backstitch mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610375052.6A CN106400325A (en) | 2016-05-30 | 2016-05-30 | Lower backstitch mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106400325A true CN106400325A (en) | 2017-02-15 |
Family
ID=58005453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610375052.6A Withdrawn CN106400325A (en) | 2016-05-30 | 2016-05-30 | Lower backstitch mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106400325A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943985A (en) * | 2019-01-29 | 2019-06-28 | 安徽杰羽制鞋机械科技有限公司 | A kind of sewing machine bottom roller feeding reversing mechanism |
-
2016
- 2016-05-30 CN CN201610375052.6A patent/CN106400325A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943985A (en) * | 2019-01-29 | 2019-06-28 | 安徽杰羽制鞋机械科技有限公司 | A kind of sewing machine bottom roller feeding reversing mechanism |
| CN109943985B (en) * | 2019-01-29 | 2024-05-17 | 安徽杰羽制鞋机械科技有限公司 | Lower roller feeding reversing mechanism of sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170215 |