CN206438277U - Rotate cutting facility and sewing machine - Google Patents
Rotate cutting facility and sewing machine Download PDFInfo
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- CN206438277U CN206438277U CN201720086116.0U CN201720086116U CN206438277U CN 206438277 U CN206438277 U CN 206438277U CN 201720086116 U CN201720086116 U CN 201720086116U CN 206438277 U CN206438277 U CN 206438277U
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- knife
- knife rest
- motion
- lower axle
- drive shaft
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Abstract
The utility model belongs to sewing device technical field, refers in particular to a kind of rotation cutting facility and sewing machine.One of which rotates cutting facility, motion knife rest is arranged with lower axle, motion knife rest is connected with lower axle by key, knife one is provided with motion knife rest, drive shaft is provided with the chassis backplane of lower axle side, drive shaft is connected by push pedal with motion knife rest, knife rest is moved with lower axle synchronous axial system, resetting-mechanism is provided with the driving shaft, and drive shaft is connected with power source, the drive shaft is moved by power source drive along its axis；When needing trimming, power source drives motion knife rest to be moved to rotating shuttle direction, the knife one on motion knife rest is realized rotation trimming action with knife two.The utility model drives the knife one on motion knife rest to rotate and realized with knife two action for rotating trimming by lower axle, it is to avoid the dependence in existing structure to trimming cam.The motion process of trimming is simplified, and simplifies the structure of whole cutting facility, the reliability of trimming function is high.
Description
Technical field
The utility model belongs to sewing device technical field, refers in particular to a kind of rotation cutting facility and sewing machine.
Background technology
Sewing machine needs to carry out trimming after every completion once sewing operation, that is, will connect between eedle and sewing
Suture is cut.Traditional sewing machine does not have trimming function in itself, it is necessary to which operating personnel complete trimming action using scissors etc..Pin
The defect existed to artificial trimming, research staff adds trimming function on sewing machine.Such cutting facility includes fixation
Stationary knife on casing, and reciprocating moving knife.Its operation principle is：When progress sewing needs trimming
Wait, drive an arrangement of clutch to carry out cutting facility and sewing machine main motion mechanism by drive device (such as electromagnet, cylinder)
Connection, by the cam with given shape on main motion mechanism (upper axle, lower axle, feed lifting rock shaft etc.), by main motion
The motion of mechanism is delivered in the moving knife drive mechanism of cutting facility according to certain sequential relationship, makes moving knife drive mechanism on demand
Time for wanting, track motion, move the line for needing to cut at stationary knife to by the action such as separated time, bracing wire with moving knife, two edges of a knife
Trimming is realized in occlusion.Complete after trimming action, moving knife drive mechanism resets to original position under the effect such as cam or spring, prepares
Trimming next time.Cutting facility and so on carries out each trimming action.With the enhancing of research and development ability, on sewing machine
Cutting facility pass through long-run development and improvement, be more reliably achieved trimming function；But there are still defect：This is cut
Line apparatus needs the complicated cam parts in a track, and relies on cam locus shape higher, it is necessary to which the accuracy of track is come
Ensure the reliability of trimming function.
The content of the invention
The utility model be for existing technology exist above mentioned problem there is provided a kind of structure and trimming action simplify,
The reliability of trimming function high rotation cutting facility and sewing machine.
The purpose of this utility model can be realized by following technical proposal：
One of purpose of the present utility model is to provide a kind of rotation cutting facility, includes lower axle, is covered in lower axle
Provided with motion knife rest, motion knife rest is connected with lower axle by key, is provided with knife one on motion knife rest, the casing in lower axle side
Drive shaft is provided with bottom plate, drive shaft is connected by push pedal with motion knife rest, and motion knife rest is with lower axle synchronous axial system, in driving
Resetting-mechanism is provided with axle, and drive shaft is connected with power source, the drive shaft is moved by power source drive along its axis；Need
When wanting trimming, power source drives motion knife rest to be moved to rotating shuttle direction, the knife one on motion knife rest is realized that rotation is cut with knife two
Line is acted；When not needing trimming, motion knife rest is moved with knife one to the direction away from rotating shuttle.
In above-mentioned rotation cutting facility, it is provided with the lower axle on spline, the motion knife rest and is provided with spline
Hole, the spline of lower axle is arranged on the connection that motion knife rest and lower axle are realized in the splined hole of motion knife rest.
In above-mentioned rotation cutting facility, keyway is provided with the lower axle, is also set on the inner hole wall of motion knife rest
Keyway is equipped with, connecting key is arranged on the connection that motion knife rest and lower axle are realized in two keyways.
In above-mentioned rotation cutting facility, the motion knife rest includes main body, is provided with main body for installing
The annular groove of push pedal.
In above-mentioned rotation cutting facility, the power source is electromagnet or cylinder.
In above-mentioned rotation cutting facility, the knife one includes the installation portion being connected with motion knife rest, in installation portion
Side be provided with blade body, blade body and the L-shaped structure of installation portion are provided with point of a knife in the front end of blade body, after
End is provided with cutting edge.
In above-mentioned rotation cutting facility, bracing wire groove is provided with front side of the cutting edge.
In above-mentioned rotation cutting facility, the knife two is stationary knife or moving knife.
In above-mentioned rotation cutting facility, the resetting-mechanism is power source, and the afterbody of power source and drive shaft leads to
Joint connection is crossed, drives motion knife rest, drive shaft to reset by power source；
Or：The resetting-mechanism is back-moving spring, and the tail end of drive shaft contacts connection with power source, tail end is provided with gear
Piece, one end of back-moving spring is held out against on catch, the other end is held out against on chassis backplane, when power driving source disappears, by multiple
Position spring drives motion knife rest, drive shaft to reset.
Another purpose of the present utility model is to provide a kind of sewing machine, including above-mentioned rotation cutting facility.
Compared with prior art, the utility model has advantages below：
The utility model drives the knife one on motion knife rest to rotate and realized with knife two action for rotating trimming by lower axle,
Avoid the dependence to trimming cam in existing structure.The motion process of trimming is simplified, and simplifies whole cutting facility
Structure, the reliability of trimming function is high.
Brief description of the drawings
Fig. 1 be the utility model not trimming when dimensional structure diagram.
Dimensional structure diagram when Fig. 2 is the utility model trimming.
Fig. 3 is the schematic diagram that the utility model is not installed on chassis backplane.
Fig. 4 is the schematic diagram of knife one of the present utility model.
Fig. 5 is the schematic diagram that push pedal of the present utility model is connected with drive shaft.
In figure, 1, lower axle；2nd, knife rest is moved；3rd, knife one；4th, chassis backplane；5th, drive shaft；6th, power source；7th, push pedal；8、
Rotating shuttle；9th, knife two；10th, connecting key；11st, fork；12nd, mounting bracket；13rd, installation portion；14th, blade body；15th, point of a knife；16th, sword
Mouthful；17th, strip gab groove；18th, the mounting seat of knife one；19th, bracing wire groove；20th, back-moving spring；21st, catch；22nd, eedle.
Embodiment
The following is specific embodiment of the utility model and with reference to accompanying drawing 1-5, the technical solution of the utility model is made into
The description of one step, but the utility model is not limited to these embodiments.
Cutting facility is rotated, includes lower axle 1, rotating shuttle 8 is provided with lower axle 1, motion knife rest is arranged with lower axle 1
2, motion knife rest 2 is connected with lower axle 1 by key, is provided with knife 1 on motion knife rest 2, the chassis backplane 4 in the side of lower axle 1
On be provided with drive shaft 5, drive shaft 5 is connected by push pedal 7 with motion knife rest 2, and motion knife rest 2 is with the synchronous axial system of lower axle 1, also
It is to say, either in trimming or during not trimming, motion knife rest 2 is all the time as lower axle 1 is rotated together, and the rotation of lower axle 1 is by leading
The transmission mechanism of axle and some row is driven, and main shaft is driven by spindle motor and rotated.Resetting-mechanism is provided with drive shaft 5, and
Drive shaft 5 is connected with power source 6, and by the drives edge of power source 6, its axis is moved the drive shaft 5；When needing trimming, power source
6 drive motion knife rest 2 to be moved to the direction of rotating shuttle 8, the knife 1 on motion knife rest 2 is realized rotation trimming action with knife 29.No
When needing trimming, motion knife rest 2 is moved with knife 1 to the direction away from rotating shuttle 8, and now knife 1 is also away from knife 29, in knife 1
Rotation process in will not with knife 29 occur snap-action.
Wherein knife 29 can be stationary knife or moving knife.When knife 29 is stationary knife, chassis backplane is arranged on by screw
On 4, such as：On the chassis backplane 4 of the side of rotating shuttle 8, completion rotation trimming is engaged with stationary knife by knife 1 (i.e. moving knife) rotation and moved
Make；When knife 29 is moving knife, on another knife rest, the band rotation of moving knife 29 is moved by the knife rest and has been engaged with knife 1
Into rotation trimming action.
The utility model is departing from the trimming cam in existing structure, and the action rotated a circle using the main motion of lower axle 1 is complete
Into a trimming process, from initial position, rotate a circle, be eventually returned to initial position, complete a trimming.It can realize
The simplification of motion process, and the part of cutting facility is simplified, more reliably realize sewing machine trimming.
Specifically, lower axle 1 described in the utility model is that key is connected with motion knife rest 2, Ke Yishi：Set in lower axle 1
Have and splined hole is provided with spline, the motion knife rest 3, the spline of lower axle 2, which is arranged in the splined hole of motion knife rest 2, realizes fortune
Movable knife rack 2 and the connection of lower axle 1.Move and used between knife rest 2 and spline to the direction of rotating shuttle 8 or the slip away from the direction of rotating shuttle 8
Connection.
As another embodiment, keyway is provided with the lower axle 1, is also equipped with the inner hole wall of motion knife rest 2
Keyway, connecting key 10, which is arranged in two keyways, realizes motion knife rest 2 and the connection of lower axle 1, between motion knife rest 2 and connecting key 10
Using being slidably connected to the direction of rotating shuttle 8 or away from the direction of rotating shuttle 8.
The mode that be connected with the key of lower axle 1 of motion knife rest 2, motion knife rest 2 can be made to can also keep after the movement of rotating shuttle 8 and
The synchronous axial system of lower axle 1.
Because motion knife rest 2 is that still, push pedal 7 is not rotated with the synchronous axial system of lower axle 1.The motion knife rest 2 is wrapped
Main body has been included, the annular groove for installing push pedal 7 is provided with main body.One end of push pedal 7 is connected with drive shaft 5, another
Hold as the fork 11 with deep-slotted chip breaker, fork is arranged in annular groove.Push pedal 7 and drive shaft 5 can be integral structures,
It can be fixedly connected by modes such as screw, welding.
Power source 6 described in the utility model is electromagnet or cylinder or motor.The present embodiment selects electromagnet, electromagnet
It is fixed on by mounting bracket 12 on chassis backplane 4.
The utility model uses rotation trimming, therefore, and traditional moving knife can not be applied to this structure.The knife 1
Include and move the installation portion 13 that be connected of knife rest 2, be provided with blade body 14 in the side of installation portion 13, blade body 14 and
The L-shaped structure of installation portion 13, point of a knife 15 is provided with the front end of blade body 14, and rear end is provided with cutting edge 16.
Bracing wire for convenience, bracing wire groove 19 is provided with the front side of described cutting edge 16.
The installation portion 13 of the present embodiment includes more than one strip gab groove 17, is typically provided with two.Correspondingly,
The mounting seat 18 of knife one is provided with motion knife rest 2.It is provided with and is corresponded with strip gab groove 17 in the mounting seat 18 of knife one
Mounting hole, knife 1 is screwed onto in mounting hole by screw to be fixed in the mounting seat 18 of knife one.Adjusting screw is in strip gab groove
Position in 17, can be with the position relationship between fine-adjustment cutter 1 and knife 29, to reach optimal trimming position.
After trimming is completed, motion knife rest 2, drive shaft 5, push pedal 7 are required to reset, due to push pedal 7 of the present utility model
Interfering movement knife rest 2 is not rotated with lower axle 1, therefore, and the resetting-mechanism can select the power source 6 for driving drive shaft 5 to move,
That is resetting-mechanism is power source 6.Power power source 6 can be connected with drive shaft 5 by joint, be answered by power power source 6
Motion knife rest 2, drive shaft 5, push pedal 7 is driven to reset during position.
Certainly, the resetting-mechanism can also be back-moving spring 20, and the tail end of drive shaft 5 contacts connection with power source 6,
Tail end is provided with catch 21, and one end of back-moving spring 20 is held out against on catch 21, the other end is held out against on chassis backplane 4, dynamic
When the power of power source 6 disappears, motion knife rest 2, drive shaft 5 is driven to reset by back-moving spring 20.Baffle plate 21 can select jump ring, or
Pad with screw rod, screw rod is screwed onto on the end face of drive shaft 5.
It is to be located at anterior station when the utility model setting motion knife rest 2 is close to rotating shuttle 8, motion knife rest 2 is remote after resetting
It is to be located at rear portion station during rotating shuttle 8.
Another purpose of the present utility model is to provide a kind of sewing machine, including above-mentioned rotation cutting facility.
Operation principle of the present utility model：
When need not carry out trimming, motion knife rest 2, push pedal 7, drive shaft 5 are located at rear portion work in the presence of resetting-mechanism
Position, motion knife rest 2 rotates together with lower axle 1, and palette knife 1 can not carry out trimming action with knife 29.
When control system receives trimming order, before rotating shuttle 8 goes to trimming angle, control system is sent out to power source 6
Signal, power source 6 starts, and drives drive shaft 5 anteriorly to move, and push pedal 7 drives motion knife rest 2 to be moved to anterior station；
Now, knife 1 is set close to knife 29, and the knife 1 on motion knife rest 2 revolves around lower axle 1 centrally along rotating shuttle 8
Turn direction rotation, point of a knife 15 pass through upper thread wire loop, bracing wire groove 19 with upper thread on one side and bottom line to knife 29 movement, when with
When the cutting edge 16 of the knife 1 of line is engaged with the cutting edge of knife 29, line is cut off, trimming action is completed.
After line is cut off, motion knife rest 2 is rotated further with lower axle 1, and until eedle 22 is stopping the stopping of pin position, knife 1 is multiple
Stop position is returned in the presence of the mechanism of position, next trimming operation is waited.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (10)
1. rotating cutting facility, include lower axle (1), it is characterised in that：Motion knife rest (2), motion are arranged with lower axle (1)
Knife rest (2) is connected with lower axle (1) by key, is provided with knife one (3) on motion knife rest (2), the casing bottom in lower axle (1) side
Drive shaft (5) is provided with plate (4), drive shaft (5) is connected by push pedal (7) with motion knife rest (2), and motion knife rest (2) is under
Axle (1) synchronous axial system, is provided with resetting-mechanism in drive shaft (5), and drive shaft (5) is connected with power source (6), the driving
By power source (6) drives edge, its axis is moved axle (5)；When needing trimming, power source (6) drives motion knife rest (2) to rotating shuttle (8)
Direction is moved, and the knife one (3) on motion knife rest (2) is realized rotation trimming action with knife two (9)；When not needing trimming, motion
Knife rest (2) is moved with knife one (3) to the direction away from rotating shuttle (8).
2. rotation cutting facility according to claim 1, it is characterised in that：Spline is provided with the lower axle (1), it is described
Splined hole is provided with motion knife rest (2), the spline of lower axle (1), which is arranged in the splined hole of motion knife rest (2), realizes motion knife
Frame (2) and the connection of lower axle (1).
3. rotation cutting facility according to claim 1, it is characterised in that：Keyway is provided with the lower axle (1), in fortune
Keyway is also equipped with the inner hole wall of movable knife rack (2), connecting key (10), which is arranged in two keyways, realizes motion knife rest (2) and lower axle
(1) connection.
4. the rotation cutting facility according to claim any one of 1-3, it is characterised in that：The motion knife rest (2) includes
There is main body, the annular groove for installing push pedal (7) is provided with main body.
5. rotation cutting facility according to claim 1, it is characterised in that：The power source (6) is electromagnet or cylinder.
6. rotation cutting facility according to claim 1, it is characterised in that：The knife one (3) includes and motion knife rest
(2) installation portion (13) of connection, blade body (14), blade body (14) and installation portion are provided with the side of installation portion (13)
(13) L-shaped structure, point of a knife (15) is provided with the front end of blade body (14), and rear end is provided with cutting edge (16).
7. rotation cutting facility according to claim 6, it is characterised in that：Bracing wire is provided with front side of the cutting edge (16)
Groove (19).
8. rotation cutting facility according to claim 1, it is characterised in that：The knife two (9) is stationary knife or moving knife.
9. rotation cutting facility according to claim 1, it is characterised in that：The resetting-mechanism is power source (6), is moved
Power source (6) is connected with the afterbody of drive shaft (5) by joint, drives motion knife rest (2), drive shaft (5) to reset by power source；
Or：The resetting-mechanism is back-moving spring (20), and the tail end of drive shaft (5) contacts connection with power source (6), set in tail end
It is equipped with catch (21), one end of back-moving spring (20) is held out against on catch (21), the other end is held out against on chassis backplane (4),
When power source (6) power disappears, motion knife rest (2), drive shaft (5) is driven to reset by back-moving spring (20).
10. sewing machine, it is characterised in that：Including the rotation cutting facility as described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720086116.0U CN206438277U (en) | 2017-01-20 | 2017-01-20 | Rotate cutting facility and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720086116.0U CN206438277U (en) | 2017-01-20 | 2017-01-20 | Rotate cutting facility and sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206438277U true CN206438277U (en) | 2017-08-25 |
Family
ID=59635089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720086116.0U Active CN206438277U (en) | 2017-01-20 | 2017-01-20 | Rotate cutting facility and sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206438277U (en) |
-
2017
- 2017-01-20 CN CN201720086116.0U patent/CN206438277U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |
|
| CP03 | Change of name, title or address |