The needle plate structure of muti needle chainstitch m/c
Technical field:
The utility model belongs to the garment devices technical field, refers in particular to a kind of needle plate structure of muti needle chainstitch m/c.
Background technology:
Muti needle chainstitch m/c is as the term suggests be to be used for making the garment devices that left front is used.The needle plate structure of traditional muti needle chainstitch m/c is (as shown in Figure 1): the front portion at the base plate 2 of muti needle chainstitch m/c head 1 is provided with needle plate mounting groove 21; Needle plate 3 is arranged in the needle plate mounting groove 21; Needle plate 3 is provided with needle lath 4, and steel plate 5 is provided with needle lath groove 51, and steel plate 5 is fixed on the muti needle chainstitch m/c head base plate 2; And needle lath 4 is arranged in the needle lath groove 51 on the steel plate 5, and the track of the slip of head 1 is to lean on to slide in the needle lath groove 51 of needle lath 4 on steel plate 5 to play the guiding role.This needle plate structure exists following weak point: the one, and easy broken string, the upper thread of muti needle chainstitch m/c and the merge point of bottom line are needle plate 3 and needle lath 4 thickness sums below muti needle chainstitch m/c head base plate 2; Being equivalent to the thickness 2mm of needle plate 3 and the thickness 3.5mm sum of needle lath 4 is 5.5mm, because merge point is too low, the movement locus of upper thread is long; Friction is big; Upper thread is disconnected easily in motion process, forms the phenomenon of the frequent broken string of upper thread in the course of the work, and influence is produced; The 2nd, when maintenance or change rotating shuttle, transfer cam etc. very inconvenient; When keeping in repair or changing rotating shuttle, accent cam; Need be with steel plate 5 whole taking away, and then just can keep in repair or change rotating shuttle after needle plate 3 and the needle lath 4 on the needle plate 3 all dismantle, transfer work such as cam, again steel plate 5, needle plate 3, needle lath 4 installations are gone back after maintenance is good; Whole process need expends the more time, efficient low and very the trouble.
Summary of the invention:
The purpose of the utility model provides a kind of easy to maintenance, improves sewing performance, solves the needle plate structure of the muti needle chainstitch m/c of broken string problem.
The utility model is achieved in that
The needle plate structure of muti needle chainstitch m/c is provided with the step surface that is used to install steel plate in head base plate front portion, is provided with the needle plate installation position in the front portion of step surface; Steel plate is arranged on the step surface; Needle plate is arranged on the needle plate installation position, offers needle plate slot on the described steel plate, and the width of needle plate slot matches with the width of needle plate; The length of needle plate slot is greater than the length of needle plate, and needle plate is arranged in the needle plate slot of steel plate.
The last plane of above-mentioned steel plate is concordant with the last plane at the rear portion of head base plate.
The last plane of above-mentioned needle plate is concordant with the last plane of steel plate.
Above-mentioned needle plate is fixed on the anterior needle plate installation position of step surface through screw.
The utility model is compared the outstanding advantage of prior art:
The utility model has been cancelled the structure of the needle lath on traditional muti needle chainstitch m/c, and when head moved, needle plate was arranged in the needle plate slot on the steel plate and plays guide effect; When work, the merge point of upper thread and bottom line has risen, and is the thickness of needle plate, has shortened the movement locus of upper thread, and the friction between upper thread and the needle plate has been reduced, and has solved the problem of easy broken string, has improved sewing performance greatly; Because length, the width of needle plate slot are enough big, repairing or replacing rotating shuttle, when changing work such as trimming cam, only need the needle plate dismounting being got final product, need not to dismantle steel plate, greatly reduce labour intensity, improved maintenance efficiency, operate easier.
Description of drawings:
Fig. 1 is the blast structural representation of background technology;
Fig. 2 is the blast structural representation of the utility model;
Fig. 3 is that the utility model is arranged on the structural representation on the muti needle chainstitch m/c frame.
The specific embodiment:
With specific embodiment the utility model is further described below, referring to Fig. 2-3:
The needle plate structure of muti needle chainstitch m/c is provided with the step surface 201 that is used to install steel plate 40 in head base plate 20 front portions, is provided with needle plate installation position 2011 in the front portion of step surface 201; Steel plate 40 is arranged on the step surface 201; Needle plate 30 is arranged on the needle plate installation position 2011, on the described steel plate 40 with step surface 201 on 2011 relevant positions, needle plate installation position offer needle plate slot 401, the width of needle plate slot 401 matches with the width of needle plate 30; The length of needle plate slot 401 is greater than the length of needle plate 30; Needle plate 30 is arranged in the needle plate slot 401 of steel plate 40, and head 10 slides in needle plate slot 401 as guiding with needle plate 30 when horizontally slipping.
The last plane of above-mentioned steel plate 40 is concordant with the last plane at the rear portion 202 of head base plate 20.
The last plane of above-mentioned needle plate 30 is concordant with the last plane of steel plate 40.When muti needle chainstitch m/c was worked, workbench was on same horizontal plane, and cloth can smooth and easyly move.
Above-mentioned needle plate 30 is fixed on the needle plate installation position 2011 of step surface 201 front portions through screw.
The utility model is installed on the frame 50 of muti needle chainstitch m/c, and is simple in structure, compact, between the front portion of head base plate 20 and rear portion 202, mills out a step surface 201, makes that steel plate 40 plane on be in place back and head base plate 20 rear portions 202 is concordant.Needle plate 30 directly is fixed on the needle plate installation position 2011 of front portion of step surface 201, has simplified processing technology.Needle plate 30 is fixed on the needle plate installation position 2011 through screw, then steel plate 40 is arranged on the step surface 201 of head base plate 20, and needle plate 30 is arranged in the needle plate slot 401 of steel plate 40, installs simple and convenient.Muti needle chainstitch m/c need be made two left front lines when work, after having made a left front line, the control system drives head 10 automatically and slides to another required left front line position top of making, by sliding as guiding in the needle plate slot 401 of needle plate 30 on steel plate 40.In making the left front line process, the merge point between upper thread and the bottom line is the thickness of needle plate 30, is equivalent to 2mm, has significantly reduced the friction between upper thread and the needle plate hole, has solved the upper thread problem of fracture easily, has improved sewing performance.Repairing or replacing rotating shuttle, when changing work such as trimming cam, only need needle plate 30 dismountings being got final product, need not to dismantle steel plate 40, greatly reduce labour intensity, improved maintenance efficiency, operate easier.
The foregoing description is merely one of preferred embodiment of the utility model; It is not the practical range that limits the utility model with this; So: the equivalence that all shapes according to the utility model, structure, principle are done changes, and all should be covered by within the protection domain of the utility model.