CN209243341U - A kind of stub control mechanism and sewing machine - Google Patents

Abstract

The utility model provides a kind of stub control mechanism and sewing machine, the stub control mechanism includes stitching deck plate, the inductor for incuding sewing, regulating mechanism and the sliding slot being provided on seam deck plate, the inductor is slidably mounted on seam deck plate and the induction end of inductor is exposed from sliding slot, and the regulating mechanism acts on inductor, changes position of the inductor in sewing machine on the cloth-feeding direction of cloth feeding mechanism.In the application, change position of the inductor in sewing machine on the cloth-feeding direction of cloth feeding mechanism 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, so as to effectively control the length for remaining in the end of a thread on sewing after trimming, it is adapted to different sewing requirements, improves sewing efficiency and seam quality.

Description

A kind of stub control mechanism and sewing machine

Technical field

The utility model relates to a kind of sewing machines, more particularly to a kind of stub control mechanism, for controlling trimming Remain in the length of the end of a thread on sewing afterwards.

Background technique

Currently, overedger on the market is all the length of the end of a thread remained on sewing after controlling trimming by inductor Degree, specific control mode are as follows: inductor is connected with the electronic control module in overedger, and inductor is fixedly mounted on overedger It stitches on deck plate or eedle, the trimming driving source in inductor and overedger is all connected with electronic control module, pre- in electronic control module Have and cuts the time；When electronic control module has sewing by inductor according to the judgement of the output signal of inductor, then automatically controlled mould BOB(beginning of block) timing and timing completely cut control trimming driving source movement after the time, make moving knife in overedger and stationary knife occlusion, will Suture is cut.Therefore, the length of the end of a thread remained on sewing after trimming by inductor reaction time, be pre-stored in electronic control module In the influence for cutting these three factors of time and the position of inductor, and the reaction time of inductor and be pre-stored in it is automatically controlled The time that cuts in module is all steady state value, therefore remains in the length of the end of a thread on sewing after trimming mainly by the position of inductor Influence.But at present in overedger, its position is all fixed and invariable after inductor installs, and in practical applications, When adjusting the needle gage or seam speed of overedger, it may appear that remain in the end of a thread on sewing situation different in size after trimming, in this way It will cause operator's second pruning the end of a thread, lost labor's cost, and reduce sewing efficiency and seam quality.

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 Structure.

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.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the end of a thread length control mechanism in the application.

The A that Fig. 2 is Fig. 1 encloses enlarged drawing.

Fig. 3 is the structural schematic diagram of regulating mechanism in the application.

Component label instructions

1 seam deck plate

11 sliding slots

2 inductors

21 induction end

3 mounting bases

31 are slidably installed slot

4 adjusting rods

41 rotating operating units

5 gaskets

6 adjustment springs

7 circlips

8 stationary knifes

9 moving knife

Specific embodiment

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.

Claims (7)

1. a kind of stub control mechanism, the inductor (2) including seam deck plate (1) and for incuding sewing, feature exists In: it further include regulating mechanism and the sliding slot (11) that is provided on seam deck plate (1), the inductor (2) is slidably mounted on The induction end (21) for stitching deck plate (1) and inductor (2) is exposed from sliding slot (11), and the regulating mechanism acts on inductor (2), change the position of inductor (2) in sewing machine on the cloth-feeding direction of cloth feeding mechanism.

2. stub control mechanism according to claim 1, it is characterised in that: the sliding slot (11) is sent 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 mechanism.

3. stub control mechanism according to claim 1, it is characterised in that: the regulating mechanism includes being fixed on seam The mounting base (3) of deck plate (1), the slot that is slidably installed (31) being provided in mounting base (3) and it is rotatably installed on installation The cloth-feeding direction front and back of the adjusting rod (4) of seat (3), adjusting rod (4) cloth feeding mechanism along sewing machine extends, the inductor (2) be located at be slidably installed in slot (31) and can in the slot that is slidably installed (31) moving axially back and forth along adjusting rod (4), institute Inductor (2) is stated to be threadedly engaged with adjusting rod (4).

4. stub control mechanism according to claim 3, it is characterised in that: the inductor (2) be slidably installed The cell wall of slot (31) is face contact cooperation.

5. stub control mechanism according to claim 3, it is characterised in that: one end of the adjusting rod (4) has The rotating operating unit (41) external positioned at the slot that is slidably installed (31).

6. stub control mechanism according to claim 5, it is characterised in that: be arranged with pad on the adjusting rod (4) Piece (5) and adjustment spring (6), the other end of the adjusting are fixed with circlip (7), the gasket (5), adjustment spring (6) and card Spring (7) is all located at the outside of the slot that is slidably installed (31), and the lateral wall of the gasket (5) and circlip (7) all with mounting base (3) offsets It connects, the both ends of the adjustment spring (6) are abutted with gasket (5) and rotating operating unit (41) respectively.

7. a kind of sewing machine, it is characterised in that: be equipped with stub described in any one of claims 1-6 in the sewing machine Control mechanism.