Summary of the invention
Technical problem to be solved in the utility model is to overcome existing seam car or the button-sewing machine shortcoming when fixing shoulder pad of facing, provide a kind of suture not penetrate the blind seam shoulder pad sewing machine of the whole thickness of shoulder pad, replace making shoulder pad by hand, accomplish than the fast and inaccessible effect of making of other sewing device of manual sewing speed.
The technical solution of the utility model is: a kind of blind seam shoulder pad sewing machine, it comprises frame, be installed in the blind stitching machine head of upper rack and be installed in the electrical control gear that frame lower is used to control eedle motion on the head, it is characterized in that, also be equiped with the feeding mechanism of the spacer shoulder seam system degree of depth on the described frame over against the position of head eedle, be provided with height-adjustable push rod in the described feeding mechanism.
Be connected with the telescopic cylinder that promotes the mass motion of feeding mechanism in the described feeding mechanism, the Compressed Gas passage of described telescopic cylinder is provided with the electromagnetic valve that is electrically connected with electrical control gear.This feeding mechanism is used for regulating on the whole the degree of depth of making.
The upper end of described push rod is provided with breach, and the direction of described breach is consistent with the direction of motion of eedle.This push rod is used for cloth and shoulder pad upwards be pushed into makes the position, and in the process of making, because push rod has breach, eedle can not bump against on the push rod, even adjust the degree of depth of making, pin also only can pass the breach of push rod, and can not bump against on the push rod.
In order to regulate the degree of depth of making easily, the utility model has also been done following improvement, is provided with the push rod cylinder below described push rod, the upper end of push rod cylinder axis and push rod interlock.Be provided with the adjustable diameter and screw adjusting handle of regulating the flexible height of cylinder axis in the bottom of described push rod cylinder.In order to realize the multistage adjusting of push rod height, set up two to have a different strokes cylinder side by side altogether, be respectively equipped with the motion of solenoid control cylinder on the passage of the Compressed Gas that is connected with these cylinders.
As further improvement of the utility model, the position corresponding with push rod is provided with the selvage guide plate of restriction shoulder pad height on the described head.This selvage guide plate is tile shape.
Described push rod is a strip, and the top of push rod is the sheet part of flat, and the long side direction of its shaft section is consistent with the bearing of trend of selvage guide plate.
Further improve as of the present utility model, described head is provided with tangential knife, and described tangential knife is connected with pneumatic means, and pneumatic means is connected with electrical control gear by the electromagnetic valve that is provided with on the compression gas pipe.When made one make a little after, tangential knife cuts off sewing thread automatically.
The utility model compared with prior art, its beneficial effect is:
1. use blind seam shoulder pad sewing machine to make shoulder pad, suture can not penetrate the bottom surface of shoulder pad, and makes elasticity and make the degree of depth and can adjust, so shoulder pad rough phenomenon can not occur, degree of tightness is suitable, and is smooth attractive in appearance; And, because the bottom surface of shoulder pad does not have stitching, realized the inaccessible stowing effect of other shoulder pad sewing machine.
2. use blind seam shoulder pad sewing machine to make the manual better effects if of making shoulder pad of effect ratio of shoulder pad, can realize than the fast production efficiency more than 4 times of handwork, and make the elasticity unanimity that processing quality is stable, easy and simple to handle.
3. whenever made one make a little after, blind seam shoulder pad sewing machine of the present utility model cuts off suture automatically, further increases work efficiency.
The specific embodiment
Head among the utility model blind seam shoulder pad sewing machine embodiment is to be transformed by blind stitching machine (as above maritime works's industry GL13101-2 type blind stitching machine that Sewing Machine Factory produced) to form, blind stitching machine also is the machine of carrying load or luggage, remove the mop mechanism of former blind stitching machine, on the fixing presser foot (fixing presser foot also is needle plate) of head section, installed selvage guide plate 9 additional.As Fig. 1, shown in Figure 5, comprise frame 1, be installed in the blind stitching machine head 2 on frame 1 top and be installed in the electrical control gear 3 that frame lower is used to control eedle motion on the head, electric-controlled switch 33 is connected with electrical control gear 3, is used to control the opening and closing of power supply.Motor 31 is electrically connected with electrical control gear 3, and moves mutually by eedle 4 and wire lifting fork assembly (not shown) that belt pulley 32 and transmission mechanism drive on the head 2, finishes and makes action.More than be prior art, so do not elaborate at this.Bottom in frame 1 also is provided with pedal switch 14, is used for the operation of control appliance, is promptly connecting under the situation of power supply the starting or stoping of work drive motor.On frame 1, also be equiped with the feeding mechanism 5 of spacer shoulder height degree over against the position of eedle 4, feeding mechanism 5 is provided with height-adjustable push rod 6, feeding mechanism integral installation is located on the telescopic cylinder 51, by fixed block 511 feeding mechanism 5 is connected with the axis of the piston of cylinder 51, under the promotion of telescopic cylinder 51, feeding mechanism 5 integral body move upward or downward.And cylinder 51 is fixedlyed connected with frame 1 by bearing 512.Simultaneously, with Compressed Gas passage that cylinder 51 communicates on be provided with the electromagnetic valve (not shown), this electromagnetic valve is electrically connected with electrical control gear 3.Feeding mechanism 5 in the utility model also can realize that whole elevating movement (as by devices such as hydraulic cylinder, worm and gear, gear drive or forks) is connected with motor 31 output shafts of electrical control gear 3 by the transmission elevating mechanism except that cylinder 51.In the present embodiment, also can the rotation of the horizontal axis of motor 31 output shafts be converted into the rotation of vertical axial by bevel gear set, by the inner screw sheath coaxial with vertical bevel gear, axial rotation can be converted into and of the up-and-down movement of this thread bush to the screw rod that cooperates, thereby realize the elevating movement of feeding mechanism 5 integral body, wherein push rod 6 and the one realization elevating movement of feeding mechanism.
Shown in accompanying drawing 1,3,4, the push rod 6 in the present embodiment can also be realized elevating movement separately under the effect of cylinder 53,54, thereby realizes a small amount of of making the degree of depth is regulated.Shown in accompanying drawing 3a, 3b, the top of push rod 6 is the sheet part 61 of flat, the shaft section of sheet part 61 is provided with breach 62 for long limit and the vertical rectangle of eedle 4 directions of motion at the top of this sheet part 61, the direction of breach 62 is consistent with the direction of motion of eedle 4.The bottom of push rod 6 is provided with push pedal 63.The right and left in frame 1 bottom over against push rod 6 is respectively equipped with left cylinder 53 and right cylinder 54, and left cylinder 53 is different with the stroke of right cylinder 54, and the stroke of right cylinder 54 is greater than the stroke of left cylinder 53, and the stroke of left cylinder 53 and right cylinder 54 can be regulated respectively.Their cylinder body is all fixedlyed connected with feeding mechanism 5, and when feeding mechanism 5 did to fall motion under the effect of telescopic cylinder 51, left cylinder 53 and right cylinder 54 were followed feeding mechanism 5 and moved together.The upper end of left side cylinder 53 is provided with and push pedal 63 corresponding left push pedal 53a, and the upper end of right cylinder 54 is provided with and push pedal 63 corresponding right push pedal 54a, simultaneously, is set with spring 7 on push rod 6.Left side cylinder 53 is connected with compressed gas source 13 by pipeline respectively with right cylinder 54, and, on the passage of Compressed Gas, also be respectively equipped with electromagnetic valve 81,82, control the motion of these two cylinders respectively.In the present embodiment, stretching out of push rod 6 highly has two kinds of regulative modes.First kind: after connecting electromagnetic valve 81, left cylinder 53 moves upward, and left push pedal 53a promotes push pedal 63 and moves upward, when needs reset, and electromagnetic valve 81 outages, left cylinder 53 resets downwards, and push rod 6 resets under the effect of spring 7; Second kind: when connecting electromagnetic valve 82, right cylinder 54 moves upward, and right push pedal 54a promotes push pedal 63 and moves upward, when needs reset, and electromagnetic valve 82 outages, right cylinder 54 resets downwards, and push rod 6 resets under the effect of spring 7.Since left cylinder 53 different with the stroke of right cylinder 54 (stroke can be identical also can be different, when stroke is identical, realize the one-level adjusting), such structural design, can realize the two-stage adjusting of push rod 6, in conjunction with under the situation that the cylinder axis of left cylinder 53 and right cylinder 54 is finely tuned, finally can realize multistage adjusting.
Feeding mechanism 5 and push rod 6 are used for cloth and shoulder pad upwards be pushed into makes the position, in the process of making, because push rod 6 has breach 62, eedle 4 can not bump against on the push rod 6, even adjust the degree of depth of making, eedle also only can pass the breach 62 of push rod 6, and can not bump against on the push rod 6.
In order to regulate the degree of depth of making easily, present embodiment has also been done following improvement, to realize the fine setting to push rod 6.Be provided with the adjustable diameter and screw adjusting handle 55 and 56 of regulating the cylinder stroke in the bottom of left cylinder 53 and right cylinder 54.Can finely tune the haul distance of left cylinder 53 and right cylinder 54, thereby realize push rod 6 is stretched out fine setting highly, that is realize making the fine setting of the degree of depth.
Shown in accompanying drawing 1,4, the position corresponding with push rod 6 is provided with the selvage guide plate 9 of restriction shoulder pad height on head 2.This selvage guide plate 9 is tile shape, and is consistent with the length direction of the sheet part 61 on push rod 6 tops.When feeding mechanism 5 and push rod 6 upwards are pushed into cloth and shoulder pad when making, selvage guide plate 9 is clipped in cloth and shoulder pad between selvage guide plate 9 and the push rod 6, guarantees the accuracy and the stability of making.When eedle 4 passes cloth and shoulder pad, the wire lifting fork (not shown) swing take-up on the head 2, and enwind selvage guide plate 9, simultaneously, can set the pin number (common 3～9 pins) of sewing by electrical control gear 3.Like this, when make finish after, cloth and shoulder pad are taken off from selvage guide plate 9, make that the suture between cloth and the shoulder pad has certain clearance (as shown in Figure 2).
In the present embodiment, also do following improvement, as shown in Figure 1, on head 2, set up a thread cutting device, the tangential knife 10 of thread cutting device is connected with cylinder 11, and the Compressed Gas passage of this cylinder 11 is provided with the electromagnetic valve that is connected with electrical control gear 3.When whenever having made one when making, electrical control gear 3 starts electromagnetic valve automatically, thereby drive cylinder 11 actions, drive the direction motion of tangential knife 10 towards suture, suture is run into the cambered surface of tangential knife 10 front ends, slide into the cutting edge place of tangential knife 10, this moment, cylinder 11 drive tangential knifes 10 moved backward, cut off suture automatically.
About 8mm～the 28mm of shoulder pad height that blind seam shoulder pad sewing machine of the present utility model can be made, but the pin number regulated at will of making, maximum can be set 250 pins, and general only the need set about 3 to 6 pins.At this moment, from beginning to be sewn into the whole process of making of tangent line, the time only needs 3 to 4 seconds, per hour approximately can make 1000 and make a little about 100 shoulder pads, exceeds the production efficiency of manual operations more than 4 times.
In blind seam shoulder pad sewing machine of the present utility model; the elevating movement of feeding mechanism 5 and push rod 6; and the stretching motion of tangential knife 10 all is not limited to and adopts cylinder to drive, and all realize that the mechanical structure of elevating movements and stretching motion or machinery all belong to protection domain of the present utility model with the electric drives structure that combines in mechanical field.And push rod 6 is cylindrical shown in accompanying drawing 3a not necessarily, can substitute (shown in accompanying drawing 3b) with the object of other strip, but rod end must be a band breach 62, and this also belongs to protection domain of the present utility model.