CN206873084U - A kind of tension disk of sewing machine - Google Patents
A kind of tension disk of sewing machine Download PDFInfo
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- CN206873084U CN206873084U CN201720822666.4U CN201720822666U CN206873084U CN 206873084 U CN206873084 U CN 206873084U CN 201720822666 U CN201720822666 U CN 201720822666U CN 206873084 U CN206873084 U CN 206873084U
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- push rod
- thimble
- casing
- tension disk
- face
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Abstract
The utility model provides a kind of tension disk of sewing machine, belongs to sewing machine technique field.The problems such as it solves existing tension disk installation inconvenience and hit when working.The tension disk of this sewing machine, on casing, including the guide rod body being connected on casing, the wire clipping component for clamp is provided with guide rod body, thimble is inserted with guide rod body, push rod is equipped with casing, push rod includes drive end and free end, the outer end of thimble is connected with wire clipping component, the inner of thimble is relative with free end, actuator is connected with drive end, actuator can drive push rod the inner of free end and thimble is leant, back-moving spring is arranged with free end, block is provided with the lateral surface of free end, one end of back-moving spring is resisted against on block, the other end of back-moving spring is resisted against on the inner face of guide rod body, back-moving spring can separate push rod and thimble.This tension disk has easy for installation, steady operation and other merits.
Description
Technical field
The utility model belongs to sewing machine technique field, is related to a kind of tension disk of sewing machine.
Background technology
Sewing machine is exactly the machine for being sutured sewing by suture, including needle bar mechanism, Yarn taking-up mechanism, feed mechanism, hook
Line mechanism, hold-down mechanism and wire-clamping device etc..The wire-clamping device of sewing machine is also known as tension disk, refers to apply pressure simultaneously to suture
The device that can be adjusted, is generally located on head.
Chinese patent literature data discloses the thread-loosening device [application number for proposing a kind of flat seam machine：201320893188.8；
Notification number：203668655U], flat seam machine includes casing, is fixed with a guide rod on casing, and be provided with being capable of clamp for slip cap on guide rod
Train wheel bridge and lower plate, the spring for acting on lower plate and making lower plate and train wheel bridge lean also is arranged with guide rod,
Thread-loosening device includes loose ends push rod, thimble and thread tension releasing disc, and thread tension releasing disc is arranged between lower plate and spring, along length side on guide rod
To pilot hole is offered, thimble sliding plug is in pilot hole, and the insertion end of thimble is pressed on thread tension releasing disc, the other end and pine
Line mandrel ends are leant, and loose ends push rod is slidably connected on casing, and casing, which is provided with, can drive loose ends push rod to slide vertically
The dynamic drive mechanism for making thread tension releasing disc compression spring.Drive mechanism includes the electromagnet being connected on casing, is fixed with electromagnet
One push rod, push rod is parallel with loose ends push rod, and loose ends push rod one end end vertical is fixed with a baffle plate, and the free end of push rod is connected
There is a buffer stopper, buffer stopper is pressed on baffle plate.The loose ends push rod other end offers a connecting hole, the grafting of thimble end on end face
In connecting hole, and thimble is pressed on connecting hole bottom surface.
Due to the setting of loose ends push rod overhead gage, loose ends push rod needs are caused to be dismounted from the inside of casing so that pine
The dismounting of line push rod is inconvenient.Although being provided with buffer stopper between push rod and loose ends push rod, pushed away when can reduce work of electromagnet
Shock between bar and loose ends push rod, but occur between thimble and thread tension releasing disc between loose ends push rod and thimble and still and hit
Hit, make tension disk job insecurity.
The content of the invention
The purpose of this utility model is in view of the above-mentioned problems existing in the prior art, it is proposed that a kind of clamp of sewing machine
Device, the technical problem of solution are how to make tension disk easy for installation and working stability.
The purpose of this utility model can be realized by following technical proposal：
A kind of tension disk of sewing machine, on casing, including the guide rod body being connected on casing, on the guide rod body
The wire clipping component for clamp is provided with, thimble is inserted with the guide rod body, push rod, the push rod are equipped with the casing
Including drive end and free end, the outer end of the thimble is connected with wire clipping component, inner, the institute relative with free end of the thimble
State and actuator is connected with drive end, the actuator can drive push rod the inner of free end and thimble is leant, and it is special
Sign is, back-moving spring is arranged with the free end, and block, the back-moving spring are provided with the lateral surface of the free end
One end be resisted against on block, the other end of the back-moving spring is resisted against on the inner face of guide rod body, the back-moving spring energy
Enough separate push rod and thimble.
During stringing, wire clipping component clamps suture.When needing loose ends, actuator driving push rod moves to the direction of thimble,
The free end of push rod overcomes the active force of back-moving spring to be resisted against on the inner of thimble, and the outer end of thimble is acted on wire clipping component
Wire clipping component is reduced the clamping force of suture, reach the effect of loose ends.When actuator does not work, in the effect of back-moving spring
Under, push rod and thimble separate, and wire clipping component returns to initial clamping suture state.
Because back-moving spring is arranged between block and guide rod body, and back-moving spring is set on the free end of push rod, peace
Spring can be attached to during shock mount on free end from casing overcoat, the guide rod body for being provided with thimble is then fixedly attached to machine
On shell, the both ends of back-moving spring are resisted against on the inner face of block and guide rod body naturally during guide rod body is connected, and are pressed from both sides
Line device is easy for installation.When actuator does not work, back-moving spring separates push rod and thimble, and vibration caused by sewing machine work is not
Influence whether the normal work of wire clipping component；Action of reset spring can make the drive end of actuator and push rod on push rod simultaneously
Connection is remained, is hit when avoiding the actuator from working between actuator and push rod；And there is back-moving spring buffering to make
With can make push rod and thimble that larger shock will not occur during, so that tension disk working stability.
In the tension disk of above-mentioned sewing machine, the block is integrally formed with push rod, and block is in a ring.
Block is integrally formed on push rod and can reduce block and be fixedly attached to caused error on push rod, while can also
Make the structural strength of block and push rod junction high, on this basis block in a ring, can make block and push rod junction with
And spring stress is uniform, is advantageous to the fixation and stable operation of back-moving spring, makes tension disk working stability.
In the tension disk of above-mentioned sewing machine, there is resistance surface one, the inner of the thimble has on the free end
Resistance surface two, the resistance surface one are plane, and the resistance surface two is spherical, and the resistance surface one and resistance surface two can support
Lean on.
Resistance surface two is spherical, and resistance surface one is plane so that the axis of thimble and push rod can also not realized collinearly
The normal work of tension disk, make tension disk working stability.In the tension disk of above-mentioned sewing machine, the actuator includes fixing
The electromagnet being connected on casing, the push rod extending into casing is provided with the electromagnet, have on the push rod against
Face one, the abutment face one are plane, have abutment face two on the drive end, the abutment face two is spherical, described to support
Abutted against by face one on face two.
When tension disk is installed, electromagnet is fixed on casing and push rod is extend into casing, then by push rod slave
It is inserted into outside shell in casing, the abutment face two on top rod driving end is resisted against on the abutment face one of push rod, it is not necessary to which other make to push away
The installation operation that bar connects with push rod, make tension disk easy for installation.Abutment face two is spherical simultaneously, and abutment face one is plane,
So that the not conllinear normal work that can also realize tension disk of the axis of push rod and push rod, makes tension disk working stability.
In the tension disk of above-mentioned sewing machine, recessed mounting groove, the electricity are offered on the rear end face of the casing
The housing of magnet is embedded into mounting groove and fixed with casing, and the push rod is extend into casing from the bottom surface of mounting groove.Set
Mounting groove facilitates the fixation of electromagnet, makes tension disk easy for installation.
In the tension disk of above-mentioned sewing machine, mounting hole, the mounting hole bag are offered on the front end face of the casing
Inner segment and outer section are included, there is transition face, the top between the hole wall and outer section of hole wall of inner segment on the hole wall of the mounting hole
Bar is plugged in inner segment, and the block and back-moving spring are located at outer section, and the transition face is taper surface.Tapered transition face is set
Put and facilitate push rod and be inserted into mounting hole, make tension disk easy for installation.
There is the inclined plane being correspondingly arranged with transition face in the tension disk of above-mentioned sewing machine, on the block.
The setting of inclined plane eliminates the part that may bump against on block with transition face, while can ensure block and push rod
Between junction structural strength, make tension disk working stability.
Compared with prior art, the utility model has advantages below：
Push rod and the separated back-moving spring of thimble can be made by being set between push rod and pilot assembly, while back-moving spring is arranged
It is resisted against in one end of the free end of push rod, and back-moving spring on the block of push rod, the other end makes tension disk against on guide rod body
Working stability.Block in a ring and is integrally formed on push rod；The abutment face one and abutment face two abutted is flat
Face and spherical, it is relative against resistance surface one and resistance surface two be respectively plane and spherical so that tension disk is on push rod, top
Also being capable of normal work when on bar and the no longer same axis of thimble.
Brief description of the drawings
Fig. 1 is the stereogram of this tension disk；
Fig. 2 is the installation sectional view of this tension disk and casing；
Fig. 3 is the enlarged drawing at A in Fig. 2.
In figure, 1, casing；1a, mounting groove；1b, mounting hole；1b1, transition face；1b2, inner segment；1b3, outer section；2nd, clamp group
Part；2a, guide rod body；2b, clamping plate one；2c, clamping plate two；2d, stringing spring；3rd, loose ends component；4th, thread tension releasing disc；5th, thimble；5a, support
Contacting surface two；6th, push rod；6a, drive end；6a2, abutment face two；6b, free end；6b1, block；6b2, inclined plane；6b3, resistance surface
One；7th, actuator；7a, electromagnet；7b, push rod；7b1, abutment face one；8th, back-moving spring.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
Embodiment one
As shown in Figure 1-Figure 3, a kind of tension disk of sewing machine, on casing 1, including wire clipping component 2 and loose ends group
Part 3.Mounting hole 1b is offered on the front end face of casing 1, mounting hole 1b includes inner segment 1b2 and outer section of 1b3, mounting hole 1b hole wall
On there is transition face 1b1, transition face 1b1 to be taper surface between inner segment 1b2 hole wall and outer section of 1b3 hole wall；After casing 1
Mounting groove 1a is offered on end face.Guide rod body 2a is fixed with mounting hole 1b external port, is provided with guide rod body 2a for pressing from both sides
The wire clipping component 2 of line, wire clipping component 2 include the 2b of clamping plate one, the 2c of clamping plate two and stringing spring 2d.Guide rod body 2a the inner is fixed on
At mounting hole 1b external ports, the front end face of casing 1, the 2b of clamping plate one, the 2c of clamping plate two and stringing spring are stretched out in guide rod body 2a outer end
2d is sequentially sleeved on guide rod body 2a outer end from inside to outside, and stringing spring 2d, which is acted on the 2c of clamping plate two, makes the 2c of clamping plate two and folder
The 2b of plate one, which leans, clamps the suture between the 2b of clamping plate one and the 2c of clamping plate two.Loose ends component 3 includes thread tension releasing disc 4, thimble 5 and top
Bar 6, thread tension releasing disc 4 are located between the 2c of clamping plate two and stringing spring 2d, and stringing spring 2d the inner is resisted against on thread tension releasing disc 4, guide rod
Body 2a outer end is also fixedly connected with nut, and stringing spring 2d outer end is resisted against on nut.Guide rod body 2a can be integrated knot
Structure, or Split type structure, the pedestal including being fixed in mounting hole 1b is present with fixed when guide rod body 2a is Split type structure
The body of rod on body, the 2b of clamping plate one, the 2c of clamping plate two and stringing spring 2d are set on the body of rod, and the 2b of clamping plate one is resisted against on pedestal.
Thimble 5 is located in guide rod body 2a, and push rod 6 is located in mounting hole 1b.Push rod 6 includes drive end 6a and free end
6b, the outer end of thimble 5 are resisted against on thread tension releasing disc 4 and thread tension releasing disc 4 can be promoted to be displaced outwardly, thimble 5 it is inner from guide rod body 2a
The inner pass and relative with free end 6b, actuator 7 is connected with drive end 6a, actuator 7 can drive push rod 6 to make freedom
End 6b and thimble 5 the inner lean.Back-moving spring 8 is arranged with the 6b of free end, is provided with free end 6b lateral surface convex
The block 6b1 in a ring gone out, block 6b1 are integrally formed with push rod 6.One end of back-moving spring 8 is resisted against on block 6b1, multiple
The other end of position spring 8 is resisted against on guide rod body 2a inner face, and back-moving spring 8 can separate push rod 6 and thimble 5.Push rod 6
Mounting hole 1b inner segment 1b2 is plugged in, block 6b1 and back-moving spring 8 are located at mounting hole 1b outer section 1b3.Have on the 6b of free end
There is the 6b3 of resistance surface one, it is plane that the inner of thimble 5, which has the 5a of resistance surface two, the 6b3 of resistance surface one, and the 5a of resistance surface two is spherical,
The 6b3 of the resistance surface one and 5a of resistance surface two can against or separate.Have on block 6b1 and incline with what transition face 1b1 was correspondingly arranged
Inclined-plane 6b2.
Actuator 7 includes the electromagnet 7a being fixedly connected in mounting groove 1a, is provided with electromagnet 7a and extend into casing 1
Interior push rod 7b, electromagnet 7a housing are embedded into mounting groove 1a and fixed with casing 1, and push rod 7b is from mounting groove 1a bottom surface
It extend into casing 1.It is plane to have the 7b1 of abutment face one, the 7b1 of abutment face one on push rod 7b, has abutment face on drive end 6a
Two 6a2, the 6a2 of abutment face two are spherical, and the 7b1 of abutment face one is abutted against on the 6a2 of face two.Actuator 7 can also be stroke
Controllable cylinder, the piston rod of cylinder are fixedly connected with push rod 7b.
During stringing, electromagnet 7a no powers, stringing spring 2d promotes thread tension releasing disc 4 and the 2c of clamping plate two to make the 2c of clamping plate two and clamping plate
One 2b is against so as to which the suture between the 2b of clamping plate one and the 2c of clamping plate two be clamped.When needing loose ends, electromagnet 7a is powered, push rod
The front end face of 7b driving push rod 6 to casing 1 moves, and the free end 6b of push rod 6 overcomes the active force of back-moving spring 8 to be resisted against thimble
On 5 the inner, the outer face of thimble 5 is acted against on thread tension releasing disc 4；When electromagnet 7a driving force gradually increases, thimble 5 is to pine
The outside thrust of line plate 4 gradually increases so that and the pressure between the 2c of clamping plate two and the 2b of clamping plate one is gradually reduced, so that suture
Line tension reduces, and reaches the effect of loose ends, as long as and regulating magnet 7a driving force be just capable of the line tension of adjustable suture.When
Electromagnet 7a driving force is increased to when the thimble 5 is more than stringing spring 2d to the thrust of thread tension releasing disc 4 to the pressure of thread tension releasing disc 4,
Thread tension releasing disc 4 can push stringing spring 2d open, and the 2c of clamping plate two can not be resisted against on the 2b of clamping plate one and clamp suture.Electromagnet 7a
During no power, in the presence of back-moving spring 8, push rod 6 and thimble 5 separate, and the 2b of clamping plate one and the 2c of clamping plate two return to initial folder
Calking wire state.
When tension disk is installed, first electromagnet 7a is fixed in mounting groove 1a and push rod 7b is stretched from mounting groove 1a bottom surface
Enter into casing 1, then back-moving spring 8 is sleeved on the free end 6b of push rod 6, then by the drive end 6a of push rod 6 from casing 1
Front end face be inserted into mounting hole 1b, the drive end 6a of push rod 6 6a2 of abutment face two is resisted against the push rod 7b 7b1 of abutment face one
On, then the guide rod body 2a for being provided with thimble 5 is fixedly attached on casing 1, resets bullet during guide rod body 2a is connected
The both ends of spring 8 are resisted against on block 6b1 and guide rod body 2a naturally, and tension disk is easy for installation.Because during electromagnet 7a no powers,
Back-moving spring 8 can separate push rod 6 and thimble 5, and vibration caused by sewing machine work will not produce shadow to wire clipping component 2
Ring, enable tension disk normal work；Simultaneously back-moving spring 8 there is cushioning effect, can make push rod 6 and thimble 5 against
During larger collision will not occur so that tension disk working stability, reduce the operating noise of tension disk.Back-moving spring 8
All the time acting on push rod 6 can be such that the drive end 6a and push rod 7b of push rod 6 remains against when avoiding electromagnet 7a work
Hit between push rod 7b and push rod 6, make tension disk working stability.
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 to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (7)
1. a kind of tension disk of sewing machine, on casing (1), including the guide rod body (2a) being connected on casing (1), it is described
The wire clipping component (2) for clamp is provided with guide rod body (2a), thimble (5), the machine are inserted with the guide rod body (2a)
Push rod (6) is equipped with shell (1), the push rod (6) includes drive end (6a) and free end (6b), the outer end of the thimble (5)
It is connected with wire clipping component (2), the inner of the thimble (5) relatively, drive is connected with the drive end (6a) with free end (6b)
Moving part (7), the actuator (7) can drive push rod (6) free end (6b) and the inner of thimble (5) is leant, its feature
It is, back-moving spring (8) is arranged with the free end (6b), block is provided with the lateral surface of the free end (6b)
(6b1), one end of the back-moving spring (8) are resisted against on block (6b1), and the other end of the back-moving spring (8), which is resisted against, leads
On the inner face of the body of rod (2a), the back-moving spring (8) can separate push rod (6) and thimble (5).
2. the tension disk of sewing machine according to claim 1, it is characterised in that the block (6b1) and push rod (6) one
Shaping, and block (6b1) is in a ring.
3. the tension disk of sewing machine according to claim 1, it is characterised in that there is resistance surface on the free end (6b)
One (6b3), the inner of the thimble (5) have a resistance surface two (5a), and the resistance surface one (6b3) is plane, the resistance surface
Two (5a) are spherical, and the resistance surface one (6b3) and resistance surface two (5a) can be against.
4. according to the tension disk of any described sewing machines of claim 1-3, it is characterised in that the actuator (7) includes solid
Surely the electromagnet (7a) being connected on casing (1), the push rod extending into casing (1) is provided with the electromagnet (7a)
(7b), there is abutment face one (7b1) on the push rod (7b), the abutment face one (7b1) is plane, on the drive end (6a)
With abutment face two (6a2), the abutment face two (6a2) is spherical, and the abutment face one (7b1) abuts against face two
On (6a2).
5. the tension disk of sewing machine according to claim 4, it is characterised in that opened up on the rear end face of the casing (1)
There is recessed mounting groove (1a), the housing of the electromagnet (7a) is embedded into mounting groove (1a) and fixed with casing (1), described
Push rod (7b) is extend into casing (1) from the bottom surface of mounting groove (1a).
6. according to the tension disk of any described sewing machines of claim 1-3, it is characterised in that the front end face of the casing (1)
On offer mounting hole (1b), the mounting hole (1b) includes inner segment (1b2) and outer section (1b3), the hole of the mounting hole (1b)
There is transition face (1b1) between the hole wall of inner segment (1b2) and the hole wall of outer section (1b3), the push rod (6) is plugged in interior on wall
Section (1b2), the block (6b1) and back-moving spring (8) are located at outer section (1b3), and the transition face (1b1) is taper surface.
7. the tension disk of sewing machine according to claim 6, it is characterised in that have on the block (6b1) and transition
The inclined plane (6b2) that face (1b1) is correspondingly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720822666.4U CN206873084U (en) | 2017-07-07 | 2017-07-07 | A kind of tension disk of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720822666.4U CN206873084U (en) | 2017-07-07 | 2017-07-07 | A kind of tension disk of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206873084U true CN206873084U (en) | 2018-01-12 |
Family
ID=61329963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720822666.4U Active CN206873084U (en) | 2017-07-07 | 2017-07-07 | A kind of tension disk of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206873084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112226926A (en) * | 2020-10-24 | 2021-01-15 | 深圳市雅诺科技股份有限公司 | Needle bar rotating mechanism of sewing machine |
-
2017
- 2017-07-07 CN CN201720822666.4U patent/CN206873084U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112226926A (en) * | 2020-10-24 | 2021-01-15 | 深圳市雅诺科技股份有限公司 | Needle bar rotating mechanism of sewing machine |
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