Utility model content
In view of the foregoing deficiencies of prior art, the technical problem to be solved by the present invention is to provide a kind of the end of a thread
Length control mechanism can control the length for remaining in the end of a thread on sewing after trimming.
To achieve the above object, the utility model provides a kind of stub control mechanism, including stitches deck plate, for feeling
The inductor, regulating mechanism and the sliding slot being provided on seam deck plate, the inductor of sewing is answered to be slidably mounted on seam platform
The induction end of panel and inductor is exposed from sliding slot, and the regulating mechanism acts on inductor, changes inductor in sewing machine
Position on the cloth-feeding direction of middle cloth feeding mechanism.
Further, straight extension before and after the cloth-feeding direction of sliding slot cloth feeding mechanism along sewing machine, the inductor
Induction end be in sliding fit with the sliding chute.
Further, the regulating mechanism includes the mounting base for being fixed on seam deck plate, the sliding being provided in mounting base
Mounting groove and the adjusting rod for being rotatably installed on mounting base, the work feed side of adjusting rod cloth feeding mechanism along sewing machine
Extend forwards, backwards, the inductor, which is located at, to be slidably installed in slot and can be slidably installed in slot along adjusting rod axially back and forth
Mobile, the inductor is threadedly engaged with adjusting rod.
Further, the cell wall of the inductor and the slot that is slidably installed is face contact cooperation.
Further, one end of the adjusting rod has the rotating operating unit being located at outside the slot that is slidably installed.
Further, gasket and adjustment spring are arranged on the adjusting rod, the other end of the adjusting is fixed with circlip,
The gasket, adjustment spring and circlip are all located at the outside for the slot that is slidably installed, the gasket and circlip all with the outside of mounting base
Wall abuts against, and the both ends of the adjustment spring are abutted with gasket and rotating operating unit respectively.
The utility model also provides a kind of sewing machine, and stub control machine as described above is equipped in the sewing machine
As described above, the utility model relates to stub control mechanism and sewing machine, have the advantages that
In the application, position of the inductor in sewing machine on the cloth-feeding direction of cloth feeding mechanism is changed by regulating mechanism,
So that inductor in sewing machine on the cloth-feeding direction of cloth feeding mechanism can far from or trimming knife assembly in the sewing machine, from
And the length for remaining in the end of a thread on sewing after trimming can be effectively controlled, it is adapted to different sewing requirements, improves sewing effect
Rate and seam quality.
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
It should be clear that structure, ratio, size etc. that this specification attached drawing is drawn, only to cooperate specification revealed interior
Hold, so that those skilled in the art understands and reads, is not intended to limit the utility model enforceable qualifications, therefore not
Has technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are practical new not influencing this
Under the effect of type can be generated and the purpose that can reach, should all still fall in the revealed technology contents of the utility model can cover
In the range of.Meanwhile in this specification cited such as "upper", "lower", "left", "right", " centre " term, also only just
It is illustrated in narration, rather than to limit the enforceable range of the utility model, relativeness is altered or modified, in no essence
It changes under technology contents, when being also considered as the enforceable scope of the utility model.
The utility model provides a kind of sewing machine, particularly a kind of overedger, is equipped with stub in the sewing machine
Control mechanism.For in following embodiment, the cloth-feeding direction of cloth feeding mechanism in sewing machine is defined as front direction convenient for describing, because
This, in sewing process, the cloth feeding mechanism driving sewing in sewing machine is moved forward.
As depicted in figs. 1 and 2, the utility model relates to stub control mechanism include seam deck plate 1 and for feeling
The inductor 2 of sewing is answered, inductor 2 is connected with the electronic control module in sewing machine, and the automatic shearing for sewing machine controls.Tool
Body says, has trimming knife assembly and the transmitting lamp bead positioned at inductor 2 above in sewing machine, emits lamp bead to penetrating irradiation inductor
2；Trimming knife assembly includes the stationary knife 8 for being fixed on casing, to the moving knife 9 that moves close to or far from 8 direction of stationary knife and can drive
The trimming driving source that dynamic moving knife 9 moves, trimming driving source are connected with electronic control module；It is prestored in electronic control module and cuts the time.
The cloth-feeding direction of inductor 2 and trimming the knife assembly cloth feeding mechanism along sewing machine is successively arranged from rear to preceding.When sewing starts, seam
The leading edge of material is formed with front pigtail, and the leading edge of sewing successively passes through inductor 2 and trimming knife assembly；The output of inductor 2
Signal is from having to nothing, therefore electronic control module has sewing leading edge by inductor 2 according to the judgement of the signal of inductor 2, automatically controlled mould
BOB(beginning of block) timing and the full control trimming driving source movement after cutting the time of timing, and then promote moving knife blade and stationary knife blade
Front pigtail is cut in occlusion, trimming before completing.After sewing, the back edge of sewing is formed with rear line pigtail, the back edge of sewing
Successively pass through inductor 2 and trimming knife assembly；From scratch, therefore electronic control module is according to inductor 2 for the output signal of inductor 2
Signal judgement has sewing back edge by the way that at inductor 2, electronic control module starts to control after cutting the time described in timing and timing completely
Trimming driving source acts, and then moving knife blade and stationary knife blade is promoted to be engaged, cut rear line pigtail, after the completion trimming.Work as induction
The sensitive time of device 2 and be pre-stored in electronic control module when to cut the time all be steady state value, inductor 2 is on seam deck plate 1
Front and back installation site or remain in seam after directly affecting trimming at a distance from saying inductor 2 between stationary knife 8 in the longitudinal direction
The length of the end of a thread on material.
Based on this, as depicted in figs. 1 and 2, the utility model relates to stub control mechanism further include regulating mechanism
With the sliding slot 11 being provided on seam deck plate 1, the inductor 2 is slidably mounted on the sense of seam deck plate 1 and inductor 2
21 should be held to expose from sliding slot 11, the regulating mechanism acts on inductor 2, changes the cloth feeding mechanism in sewing machine of inductor 2
Cloth-feeding direction on position, and then change inductor 2 between stationary knife 8 in the longitudinal direction at a distance from so that inductor 2 exists
It being capable of separate or in sewing machine trimming knife assembly on front-rear direction；In the present embodiment, the sliding slot 11 is along sewing machine
Straight extension, induction end 21 and the sliding slot 11 of the inductor 2 are slidably matched before and after the cloth-feeding direction of cloth feeding mechanism.Work as inductor
2 in the longitudinal direction at a distance from stationary knife 8 in trimming knife assembly become it is close when, it is possible to reduce crossed when sewing inductor 2 line pigtail become
Change and velocity variations calculate inductor 2 influence of error, keep the stub remained in after trimming on sewing shorter and
It is more stable；Conversely, making residual after trimming when inductor 2 becomes remote at a distance from stationary knife 8 in trimming knife assembly in the longitudinal direction
The stub stayed on sewing is longer.Therefore, in the needle gage of adjustment sewing machine or seam speed or with special sewing requirement
When, the front and back installation site by changing inductor 2 can effectively control the length for remaining in the end of a thread on sewing after trimming,
To meet different sewing requirements, operator's second pruning the end of a thread is avoided, efficient and save the cost, and sewing can be effectively improved
Efficiency and seam quality.Such as: after the needle gage of adjustment sewing machine or seam speed, if stub becomes too long, pass through
Regulating mechanism makes the installation site of inductor 2 move forward a bit to close to 8 direction of stationary knife, shortens inductor 2 on front-rear direction and determines
The distance between knife 8 is, it can be achieved that stub shortens；If stub becomes too short or cuts sewing, pass through adjusting machine
Structure moves back the installation site of inductor 2 a bit to far from 8 direction of stationary knife, increases on front-rear direction between inductor 2 and stationary knife 8
Distance, it can be achieved that stub is elongated.
The preferred structure of the regulating mechanism are as follows: as shown in figure 3, the regulating mechanism includes being fixed by screws in seam platform
Mounting base 3 on 1 lower end surface of panel is provided with being slidably installed in mounting base 3 and slot 31 and is rotatably installed on mounting base
The cloth-feeding direction front and back of 3 adjusting rod 4, the cloth feeding mechanism along sewing machine of adjusting rod 4 extends, and the inductor 2, which is located at, to be slided
And it can be in the moving axially back and forth along adjusting rod 4 in slot 31 that be slidably installed, the inductor 2 and adjusting in dynamic mounting groove 31
Bar 4 is threadedly engaged.When rotating adjusting rod 4,2 edge of inductor can be driven by being threadedly engaged between adjusting rod 4 and inductor 2
Adjusting rod 4 is moved forward or is moved back, and the induction end 21 of inductor 2 correspondingly moves forward or moves back in sliding slot 11, before changing inductor 2
Installation site afterwards, so change inductor 2 between stationary knife 8 in the longitudinal direction at a distance from.For the ease of rotating adjusting rod 4,
The rear end of adjusting rod 4 has the rotating operating unit 41 being located at outside the slot 31 that is slidably installed.In addition, the left and right sides wall of inductor 2
Cooperate between the left and right sides cell wall for the slot 31 that is slidably installed for face contact, to limit the rotation of inductor 2, so that inductor 2
It can only be moved forward and backward.
Further, in order to form axial limiting to adjusting rod 4, as shown in figure 3, being arranged on the back segment of the adjusting rod 4
There are gasket 5 and adjustment spring 6, the adjusting is fixedly arranged at the front end with circlip 7, and the gasket 5, adjustment spring 6 and circlip 7 are all located at
Be slidably installed the outside of slot 31, and the rear wall of the gasket 5 and mounting base 3 abuts, the front side wall of the circlip 7 and mounting base 3
It abuts, the rear and front end of the adjustment spring 6 is abutted with gasket 5 and rotating operating unit 41 respectively.
In conclusion the application needed according to practical sewing stub, adjusted in a manner of rotating adjusting rod 4 manually
The front-rear position for saving inductor 2 achievees the purpose that change stub, and easy to operate and structure is simple, has extraordinary
Application prospect.So the utility model effectively overcomes various shortcoming in the prior art and has high industrial utilization value.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.