SU364705A1 - SEMI-AUTOMATIC MACHINE FOR WRINKING THE WING ON THE CLOTHES ITEMS - Google Patents

Description

one

The invention relates to the sewing engineering industry, in particular to semiautomatic machines for marking over flying pieces of clothing with a simultaneous production of two edges of the loop and locking.

A semiautomatic device for marking over loops on clothing items is known, which contains a flying-forming mechanism that has a .1 driver and a shuttle, a mechanism for moving the material along and across the platform, controlled by a cam, and a drive.

The well-known semi-automatic overcast | Petlp with consistent laying edges of the loop and tacks, which reduces its performance.

In order to increase the production outpost, the proposed semiautomatic device is equipped with a needle bar rotation mechanism around the vertical axis, which is an automatic milling machine, both of which are executed simultaneously, by installing the second needle on the needle bar and, accordingly, the second shuttle and the mechanism rotation of the needle bar in the form of a fork, connected to the needle bar through the crackers, and on the other fork there is a gear that interacts with the gears of the sector, kinematically connected with the main shaft. semi-automatic.

FIG. 1 given the kinematic scheme of semi-automat; "A fpg. 2 - s.hema to read.

On the main shaft / semiautomatic device there is a crank 2, pivotally connected to the rail m. 3. The latter is pivotally connected to the sleeve 4, is located on the 1st pa of the driver 5 and is slid on the fit and bounded pa; i.M B psev. In addition, two needles are attached to the lower part of the needle bar (S. Two lower loop-forming opraiia, for example shuttle 9, are driven in Bpanieiiiie by iiiKiiBa 10 belt drive //, pulley 12, people shaft 13 and gearboxes //. To form a P1 zigzag stitch, the semi-fabricated stack is placed between the substrates The strap is fixedly attached to the table 17, and the presser foot is connected by means of the hinge 18. The fabric is clamped between the backing and the presser foot with a spring 19. The table 17 p. has a dovetail shaped groove, allowing It is necessary to carry out the return of the table 20 with the help of the 3iir-3ar mechanism. This mechanism is a cocjoiiT of breadcrumbs 21, niapnnpno connected to the fork 22, having the name, in which the biscuit is located 23. The breadcrumber 23 is pivotally connected to the lever .m 24 adjusting the width of the zigzag. The fork encloses a three-cam cam 25, fixed to the shaft vertically on the shaft 26. There is a gear 27 on the ayuslediyah, and a gear 27, which is connected with the gear 28 mounted on the shuttle shaft.

Table 20 has a dovetail shaped gutter, making it possible to perform a postunational movement on the rail, 29, which is siennaised with a gear wheel 30, is at the same time the upper linkage of the freewheel 31. It has a coupling sprocket motions i: o the shaft of the horizontal non-offset shaft of the usual sewing manshna. T 33 adjustment; stitch length, pivotally connected with lever 34, serves to adjust the oscillation of the shaft 32 and the same to adjust the pitch of the stitching.

Su.hari 55, which encloses a needlehead, is located in a plug 36, which hinges the possibility of a twist around axis 37 with a gear 38 fixed on it, which is kinematically associated with sector 39. The latter can rotate around axis 40 of the hinge connected to it 41, in the groove of which a three-link cam 42 is located, mounted on a vertical shaft 43, having a helical gear 44 coupled to a helical gear 43 mounted on the main shaft of the semi-automatic gearbox. In the groove of the vnlki there is a cracker-lever 46, which rotates around the axis 47 with the help of a pile 48 fastened in it, a distributing disk 49 attached to a vertical shaft 50, kinematically connected to the main shaft T1pH HOMOHUI 51 and the worm gear 52. A tooth 53, fixed on the distributor Dnsk by acting on the lever 54, having the possibility of turning around the axis 55, serves to activate the stop mechanism of the semi-automatic 5f, for example, type 25-А of the PMZ type. Kalinin.

The cam 57, fixed on the distribution dnska, by acting on the lever 34, changes the giag of the seam-zig seam line.

Semiautomatic works as follows. At the moment the semiautomatic device is switched on, the main shaft (s) and, using crank 2 and connecting rod 3, hinged bushing, retaining rings 5 and 7, the needle and needle 8, the reciprocating movement is rotated. At this moment, the finger 48 occupies a position in the groove of the distributor disk 49, at which the end of the plug 41 and begins to oscillate so that the gear 38 performs reciprocating circular oscillations of exactly 180 °. With 36 bits of breadcrumbs 35, a circular oscillatory motion is transmitted to the needle bar 5, which has the ability to rotate in the hinge sleeve 4. The transfer sleeves, in turn, require the rotary needle 5 so that for every two turns of the main shaft of the automatic machine

Each needle 1 fits into one of two shuttles only once.

Simultaneously with the beginning of the work of the needle mechanisms, the semi-finished product, sandwiched between the substrate 15 and the foot 16, on one side begins to perform reciprocating movements along the manshna platform under the influence of crackers 21, located in the groove of the table 17, fork 22 p. .m 26, by the shuttle shaft 13 through helical gears 27 and 28, and on the other hand, perform the movement of the nodacha, carried out across the platform of the semiautomatic device under the influence of vibrations transmitted from the shaft 32 through the usual coupling 31, gear wheel 30, a rail 29, a table 20, a table 17 arranged thereon. In this case, the hinge 58 of the fork 22, on which the cracker 21 is mounted, is in non-movable rails 59, which are perpendicular to the slot of the table 17.

The magnitude of the zigzag amplitude is controlled by the lever 24, and the feed amount depends on the position of the thrust 33, the lever 34, and the parameters of the cam 57. At the time of making the clips, the thrust position 55 is such that the shaft 32 oscillates or does not oscillate at all from technological requirements for the manufacture of loops.

Pa figs. Figure 2 shows a loop with a clip without being applied to a bar tack. During the production of the two edges of the loop, the position of the finger and the lever-cracker 46 are in such a position that the end of the fork 41 and sector 39 do not oscillate, therefore the needle bar 5 does not rotate, and the position of the lever 34 n ti 55 is such that the shaft 32 oscillates strictly defined, pre-selected amplitude that provides

schaga uniformity.

For one revolution of the distribution disc 49, one loop with two bartacks is tailored at the beginning and end of the loop. The design of the rotation mechanisms of the ngl osuschestblenn zng-zaga ensures that the corresponding working tools (needles and semi-finished material clamp) stays out when the needles are in the semi-finished product.

The subject is invented and

1. A semiautomatic device for stitching loops on garments, containing a model-forming mechanism with a needle bar and a shuttle, a mechanism for moving the material along and across the platform, adjusted by a cam, and a drive, characterized in that, in order to increase productivity, it is equipped with a mechanism rotation of the needle bar around the vertical axis, it is opaque to manufacture the loops on the loops, both edges of which are executed simultaneously, by installing the second needle in the needle bar and, accordingly,

her second shuttle.

2. Semiautomatic in. 1, characterized in that the needle bar rotation mechanism is made in the form of a FORK connected to the needle bar by means of crackers, and at the other end of the fork there is a gear that interacts with the gear sector kinematically connected with the main shaft of the semi-automatic.

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