CN205741535U - A kind of thread cutter of sewing machine - Google Patents
A kind of thread cutter of sewing machine Download PDFInfo
- Publication number
- CN205741535U CN205741535U CN201620420923.7U CN201620420923U CN205741535U CN 205741535 U CN205741535 U CN 205741535U CN 201620420923 U CN201620420923 U CN 201620420923U CN 205741535 U CN205741535 U CN 205741535U
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- CN
- China
- Prior art keywords
- upper cutter
- cutter
- tangent line
- driver element
- hinged
- 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.)
- Expired - Fee Related
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- Sewing Machines And Sewing (AREA)
Abstract
This utility model provides the thread cutter of a kind of sewing machine, it is characterised in that include that lower cutter unit, upper cutter unit and driver element, described upper cutter unit include that upper cutter, described lower cutter unit include lower cutter；Described driver element is hinged with described upper cutter unit and described lower cutter unit respectively；Described driver element is articulated with in the casing of sewing machine；When described driver element swings, driving described upper cutter unit and described lower cutter unit motion, make described upper cutter and lower cutter move to eedle center simultaneously, eedle center is overlapping carries out tangent line close for upper cutter and the tangent line cutting edge position of lower cutter.The end of a thread that the thread cutter that this utility model provides can solve to be retained on cloth after thread cutter tangent line in prior art is long, the problem needing manual pruning the end of a thread after sewing, sewing operation can be simplified, be greatly improved work efficiency, and the work load of operator can be alleviated.
Description
Technical field
This utility model belongs to sewing machine technique field, relates to the thread cutter of a kind of sewing machine.
Background technology
In prior art, the thread cutter of sewing machine is when completing thread cutting action, typically by stationary knife with dynamic
Cutter has coordinated, and stationary knife is fixed in casing, and distance eedle center farther out, therefore when tangent line, is cut
Line position also can be accordingly away from eedle center, after so causing tangent line, and the end of a thread being retained on cloth
Long, after having sewed, need again the end of a thread to be pruned with shears specially, add sewer
Sequence, has also increased the weight of the work load of operator simultaneously.
Utility model content
The purpose of this utility model is to provide the thread cutter of a kind of sewing machine, it is intended to solve existing skill
The end of a thread being retained on cloth after thread cutter tangent line present in art is long, needs manual repairing after sewing
The problem of trimming thread ends.
For solving above-mentioned technical problem,
This utility model provides the thread cutter of a kind of sewing machine, it is characterised in that include lower cutter
Unit, upper cutter unit and driver element,
Described upper cutter unit includes that upper cutter, described lower cutter unit include lower cutter；
Described driver element is hinged with described upper cutter unit and described lower cutter unit respectively；
Described driver element is articulated with in the casing of sewing machine；
When described driver element swings, drive described upper cutter unit and described lower cutter unit motion,
Make described upper cutter and lower cutter move to eedle center, upper cutter and the tangent line cutting edge of lower cutter simultaneously
Position is carrying out tangent line near eedle center overlap.
Further, described driver element includes that tangent line drives crank and adjustable plate,
Described tangent line drives crank to be articulated with in the casing of sewing machine；
Described adjustable plate one end is fixed on described tangent line and is driven on crank, and it drives song at described tangent line
Position on handle is adjustable；
Described tangent line drives crank hinged with described lower cutter unit；
Described upper cutter unit is hinged with the described adjustable plate other end.
Further, described lower cutter unit also includes incision tool rest, rotating shuttle axle sleeve and lower cutter connecting rod,
Described lower cutter is fixed on described incision tool rest；
Described incision tool rest is hinged with described rotating shuttle axle sleeve；
Described rotating shuttle axle sleeve is fixed in described casing；
Described lower cutter connecting rod two ends are hinged with described incision tool rest and described driver element respectively.
Further, described upper cutter unit also includes upper cutter seat, guide holder and transmission component,
Described upper cutter is fixed on described upper cutter seat；
Described upper cutter seat is flexibly connected with described guide holder；
Described guide holder is fixed in described casing；
Described transmission component one end is hinged with described driver element, the other end respectively with described upper cutter seat
Hinged with described guide holder；
Described driver element swing time, by described transmission component drive described upper cutter seat near or
Side away from described eedle center moves upward.
Further, described guide holder is provided with gathering sill, and described upper cutter seat is arranged at described guiding
In groove, described upper cutter seat can be to the side closer or far from described eedle center in described gathering sill
Upward sliding.
Further, described transmission component includes eccentric roller bearing and connects assembly,
Described upper cutter seat is provided with notch, the external diameter phase of the width of described notch and described eccentric roller bearing
Coupling, described eccentric roller bearing is positioned in described notch；
Described connection assembly one end is hinged with described driver element, the other end respectively with described guide holder and
Described eccentric roller bearing is hinged；
In the rotation of the center of rotation that described connection assembly rotates around described guide holder and described eccentric roller bearing
The heart has an eccentric throw.
Further, described connection assembly includes upper cutter connecting rod and upper cutter crank,
Described upper cutter connecting rod two ends are hinged with described driver element and described upper cutter crank one end respectively；
The described upper cutter crank other end is connected with described guide holder and described eccentric roller bearing respectively；
The center of rotation that described upper cutter crank rotates around described guide holder and the rotation of described eccentric roller bearing
There is an eccentric throw at center.
Further, described upper cutter connecting rod two ends respectively with the described adjustable plate other end and described on cut
Cutter crank one end is hinged.
Compared with prior art,
The thread cutter that this utility model provides can solve to leave over after thread cutter tangent line in prior art
The end of a thread on cloth is long, the problem needing manual pruning the end of a thread after sewing, can simplify sewer
Sequence, is greatly improved work efficiency, and can alleviate the work load of operator.
Accompanying drawing explanation
Fig. 1 is that the part-structure of the thread cutter of a kind of sewing machine that this utility model embodiment provides shows
It is intended to；
Fig. 2 is the structural representation of the thread cutter of a kind of sewing machine that this utility model embodiment provides
Figure；
Fig. 3 is the signal during thread cutter tangent line of a kind of sewing machine that this utility model embodiment provides
Figure；
Fig. 4 is the transmission component of the thread cutter of a kind of sewing machine that this utility model embodiment provides
Structural representation；
Fig. 5 be this utility model embodiment provide a kind of sewing machine thread cutter transmission component with
The connection diagram of upper cutter tool rest；
Fig. 6 is that the eccentric roller bearing of the thread cutter of a kind of sewing machine that this utility model embodiment provides exists
Structural representation in upper cutter seat slot.
Wherein, 1-upper cutter unit；2-lower cutter unit；3-driver element；4-casing；In 5-eedle
The heart；10-transmission component；11-upper cutter；12-upper cutter seat；13-guide holder；14-bias roller bearing；15-
Connect assembly；151-upper cutter connecting rod；152-upper cutter crank；21-lower cutter；22-incision tool rest；
23-rotating shuttle axle sleeve；24-lower cutter connecting rod；31-tangent line drives crank；32-adjustable plate.
Detailed description of the invention
Tangent line below in conjunction with the drawings and specific embodiments a kind of sewing machine to the utility model proposes fills
Put and be described in further detail.According to following explanation and claims, advantage of the present utility model and
Feature will be apparent from.It should be noted that, accompanying drawing all use the form simplified very much and all use non-precisely
Ratio, only in order to convenient, aid in illustrating the purpose of this utility model embodiment lucidly.
As shown in figures 1 to 6, the thread cutter of a kind of sewing machine that this utility model provides, including on cut
Cutter unit 1, lower cutter unit 2 and driver element 3,
Described upper cutter unit 1 includes that upper cutter 11, described lower cutter unit 2 include lower cutter 21；
Described driver element 3 is hinged with described upper cutter unit 1 and described lower cutter unit 2 respectively；
Described driver element 3 is articulated with in the casing of sewing machine 4；
When described driver element 3 swings, drive described upper cutter unit 1 and described lower cutter unit 2
Motion, makes described upper cutter 11 and lower cutter 21 move to eedle center 5 simultaneously, upper cutter 11 with
The tangent line cutting edge position of lower cutter 21 carries out tangent line (as shown in Figure 3) in overlap at eedle center 5.
Motion by upper and lower two cuttves so that tangent position occurs, at eedle center 5, can make
The end of a thread that must be retained on cloth is the shortest, it is no longer necessary to prunes the end of a thread specially, simplifies sewing
Operation, provides work efficiency significantly.
Further, described driver element 3 includes that tangent line drives crank 31 and adjustable plate 32,
Described tangent line drives crank 31 to be articulated with in the casing 4 of sewing machine；
Described adjustable plate 32 one end is fixed on described tangent line and is driven on crank 31, and it is at described tangent line
Drive the position on crank 31 adjustable；
The other end of described tangent line driving crank 31 is hinged with described lower cutter unit 2；
Described upper cutter unit 1 is hinged with described adjustable plate 32 other end.
Further, described lower cutter unit 2 also include incision tool rest 22, rotating shuttle axle sleeve 23 and under
Cutter connecting rod 24,
Described lower cutter 21 is fixed on described incision tool rest 22；
Described incision tool rest 22 is hinged with described rotating shuttle axle sleeve 23；
Described rotating shuttle axle sleeve 23 is fixed in described casing 4；
Described lower cutter connecting rod 24 two ends are cut with scissors with described incision tool rest 22 and described driver element 3 respectively
Connect.When described driver element 3 swings, driving described lower cutter connecting rod 24 to move, described lower cutter is even
Bar 24 drives described incision tool rest 22 to rotate around described rotating shuttle axle sleeve again, now, is fixed on lower cutter
Lower cutter 21 on seat 22 also can rotate accordingly, it is achieved lower cutter 21 is at described eedle center 5
Mobile.
Further, described upper cutter unit 1 also includes upper cutter seat 12, guide holder 13 and transmission
Assembly 10,
Described upper cutter 11 is fixed on described upper cutter seat 12；
Described upper cutter seat 12 is flexibly connected with described guide holder 13；
Described guide holder 13 is fixed in described casing 4；
Described transmission component 10 one end is hinged (preferably with described adjustable plate 32 with described driver element 3
Hinged), the other end is hinged with described upper cutter seat 12 and described guide holder 13 respectively；
When described driver element 3 swings, drive described upper cutter seat 12 by described transmission component 10
Move upward to the side closer or far from described eedle center 5.
When described driver element 3 swings, described transmission component 10 is driven to move, now owing to guiding
Seat 13 is fixed in casing 4, transmission component 10 respectively with described upper cutter seat 12 and described guide holder
13 is hinged, and described upper cutter seat 12 is flexibly connected with described guide holder 13, described transmission component 10
Described upper cutter seat 12 can be driven on described guide holder 13 to closer or far from described eedle center 5
Side move upward, thus drive described upper cutter 21 to move at described eedle center 5.
Preferably, described guide holder 13 is provided with gathering sill, and described upper cutter seat 12 is arranged at described
In gathering sill, described upper cutter seat 12 can be to closer or far from described eedle in described gathering sill
The square upward sliding of the heart 5.
Further, described transmission component 10 includes eccentric roller bearing 14 and connects assembly 15,
Described upper cutter seat 12 is provided with notch, the width of described notch and described eccentric roller bearing 14
External diameter matches, and described eccentric roller bearing 14 is positioned in described notch；
Described connection assembly 15 one end is hinged with described driver element 3, the other end respectively with described guiding
Seat 13 and described eccentric roller bearing 14 are hinged；
The center of rotation that described connection assembly 15 rotates around described guide holder 13 and described eccentric roller bearing 14
Center of rotation have eccentric throw D, as shown in Figure 4.
Further, described connection assembly 15 includes upper cutter connecting rod 151 and upper cutter crank 152,
Described upper cutter connecting rod 151 two ends respectively with described driver element 3 and described upper cutter crank 152
One end is hinged；
Described upper cutter crank 152 other end respectively with described guide holder 13 and described eccentric roller bearing 14
Connect；
The center of rotation that described upper cutter crank 152 rotates around described guide holder 13 and described eccentric roller bearing
The center of rotation of 14 has eccentric throw D.
In another embodiment, described driver element 3 includes that tangent line drives crank 31 and adjustable plate 32,
Described transmission component includes eccentric roller bearing 14 and connects assembly 15,
Now, described upper cutter seat 12 is provided with notch, the width of described notch and described eccentric roller bearing
The external diameter of 14 matches, and described eccentric roller bearing 14 is positioned in described notch；
Described adjustable plate 32 one end is fixed on described tangent line and drives on crank 31, and it is at described tangent line
Drive the position adjustable on crank 31；
Described connection assembly 15 one end is hinged with described adjustable plate 32 other end, its other end respectively with
Described guide holder 13 and described eccentric roller bearing 14 are hinged；
The center of rotation that described connection assembly 15 rotates around described guide holder 13 and described eccentric roller bearing 14
Center of rotation have eccentric throw D.Adjustable plate 32 is set, adjustable plate can be adjusted according to actual needs
32 drive the position on crank 31 at described tangent line, thus the motion to upper cutter 11 is adjusted,
Make it match with the motion of lower cutter 21, allow the tangent line cutting edge position of two cutting knifes in eedle
At the heart 5, overlap carries out tangent line.
Preferably, described connection assembly 15 includes upper cutter connecting rod 151 and upper cutter crank 152,
Described upper cutter connecting rod 151 two ends are bent with described adjustable plate 32 other end and described upper cutter respectively
Handle 152 one end is hinged；
Described upper cutter crank 152 other end respectively with described guide holder 13 and described eccentric roller bearing 14
Connect；
The center of rotation that described upper cutter crank 152 rotates around described guide holder 13 and described eccentric roller bearing
The center of rotation of 14 has eccentric throw D.
The work process of the thread cutter that this utility model provides is as follows: when driver element 3 is fixed around it
When center of rotation in casing swings,
Described lower cutter connecting rod 24 drives incision tool rest 22 and is fixed in lower cutter 21 thereon around its axle
The heart rotates, and makes lower cutter 21 move to the direction near eedle center 5；
Described upper cutter connecting rod 151 drives upper cutter crank 152 to swing, due to described upper cutter crank
152 are articulated with on described guide holder 13, and therefore it can rotate around described guide holder 13, now, and institute
Stating upper cutter crank 152 can drive the eccentric roller bearing 14 hinged with it to move equally, owing to upper cutter is bent
The center of rotation of the center of rotation that handle 152 rotates around guide holder 13 and eccentric roller bearing 14 self has one inclined
The heart, away from D, can make eccentric roller bearing 14 make planetary motion around the center of rotation of upper cutter crank 152, thus
Eccentric roller bearing 14 is made to drive upper cutter seat 12 to make sliding motion, the side of slip in the groove of guide holder 13
To for the direction closer or far from described eedle center 5, thus realize upper with what upper cutter seat 12 was fixed
Cutting knife 11 moves to the direction at described eedle center 5；
Pass through said process so that described upper cutter 11 and lower cutter 21 move to eedle center simultaneously,
And upper cutter 11 and lower cutter 21 tangent line cutting edge position are carrying out tangent line near eedle center is overlapping,
At this moment the end of a thread being retained on cloth after tangent line is shorter, without manual pruning the end of a thread after tangent line.
The thread cutter that this utility model provides can solve to leave over after thread cutter tangent line in prior art
The end of a thread on cloth is long, the problem needing manual pruning the end of a thread after sewing, can simplify sewer
Sequence, is greatly improved work efficiency, and can alleviate the work load of operator.
Foregoing description is only the description to this utility model preferred embodiment, not to this utility model model
Any restriction enclosed, the those of ordinary skill in this utility model field is according to appointing that the disclosure above content is done
What change, modification, belong to the protection domain of claims.
Claims (8)
1. the thread cutter of a sewing machine, it is characterised in that include lower cutter unit, upper cutter list
Unit and driver element,
Described upper cutter unit includes that upper cutter, described lower cutter unit include lower cutter；
Described driver element is hinged with described upper cutter unit and described lower cutter unit respectively；
Described driver element is articulated with in the casing of sewing machine；
When described driver element swings, drive described upper cutter unit and described lower cutter unit motion,
Make described upper cutter and lower cutter move to eedle center, upper cutter and the tangent line cutting edge of lower cutter simultaneously
Position is carrying out tangent line near eedle center overlap.
The thread cutter of a kind of sewing machine the most according to claim 1, it is characterised in that described
Driver element includes that tangent line drives crank and adjustable plate,
Described tangent line drives crank to be articulated with in the casing of sewing machine；
Described adjustable plate one end is fixed on described tangent line and is driven on crank, and it drives song at described tangent line
Position on handle is adjustable；
Described tangent line drives crank hinged with described lower cutter unit；
Described upper cutter unit is hinged with the described adjustable plate other end.
The thread cutter of a kind of sewing machine the most according to claim 1, it is characterised in that described
Lower cutter unit also includes incision tool rest, rotating shuttle axle sleeve and lower cutter connecting rod,
Described lower cutter is fixed on described incision tool rest；
Described incision tool rest is hinged with described rotating shuttle axle sleeve；
Described rotating shuttle axle sleeve is fixed in described casing；
Described lower cutter connecting rod two ends are hinged with described incision tool rest and described driver element respectively.
The thread cutter of a kind of sewing machine the most according to claim 1, it is characterised in that described
Upper cutter unit also includes upper cutter seat, guide holder and transmission component,
Described upper cutter is fixed on described upper cutter seat；
Described upper cutter seat is flexibly connected with described guide holder；
Described guide holder is fixed in described casing；
Described transmission component one end is hinged with described driver element, the other end respectively with described upper cutter seat
Hinged with described guide holder；
Described driver element swing time, by described transmission component drive described upper cutter seat near or
Side away from described eedle center moves upward.
The thread cutter of a kind of sewing machine the most according to claim 4, it is characterised in that described
Guide holder is provided with gathering sill, and described upper cutter seat is arranged in described gathering sill, described upper cutter seat
Can be to the square upward sliding closer or far from described eedle center in described gathering sill.
The thread cutter of a kind of sewing machine the most according to claim 4, it is characterised in that described
Transmission component includes eccentric roller bearing and connects assembly,
Described upper cutter seat is provided with notch, the external diameter phase of the width of described notch and described eccentric roller bearing
Coupling, described eccentric roller bearing is positioned in described notch；
Described connection assembly one end is hinged with described driver element, the other end respectively with described guide holder and
Described eccentric roller bearing is hinged；
In the rotation of the center of rotation that described connection assembly rotates around described guide holder and described eccentric roller bearing
The heart has an eccentric throw.
The thread cutter of a kind of sewing machine the most according to claim 6, it is characterised in that described
Connect assembly and include upper cutter connecting rod and upper cutter crank,
Described upper cutter connecting rod two ends are hinged with described driver element and described upper cutter crank one end respectively；
The described upper cutter crank other end is connected with described guide holder and described eccentric roller bearing respectively；
The center of rotation that described upper cutter crank rotates around described guide holder and the rotation of described eccentric roller bearing
There is an eccentric throw at center.
The thread cutter of a kind of sewing machine the most according to claim 7, it is characterised in that described
Driver element includes that tangent line drives crank and adjustable plate,
Described tangent line drives crank to be articulated with in the casing of sewing machine；
Described adjustable plate one end is fixed on described tangent line and is driven on crank, and it drives song at described tangent line
Position on handle is adjustable；
Described tangent line drives crank hinged with described lower cutter unit；
Described upper cutter connecting rod two ends respectively with the described adjustable plate other end and described upper cutter crank one end
Hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620420923.7U CN205741535U (en) | 2016-05-10 | 2016-05-10 | A kind of thread cutter of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620420923.7U CN205741535U (en) | 2016-05-10 | 2016-05-10 | A kind of thread cutter of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205741535U true CN205741535U (en) | 2016-11-30 |
Family
ID=57369045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620420923.7U Expired - Fee Related CN205741535U (en) | 2016-05-10 | 2016-05-10 | A kind of thread cutter of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205741535U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105734851A (en) * | 2016-05-10 | 2016-07-06 | 上海富山精密机械科技有限公司 | Thread cutting device of sewing machine |
-
2016
- 2016-05-10 CN CN201620420923.7U patent/CN205741535U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105734851A (en) * | 2016-05-10 | 2016-07-06 | 上海富山精密机械科技有限公司 | Thread cutting device of sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20200510 |