SU996276A1 - Apparatus for longitudinal folding of web - Google Patents

Description

(54) DEVICE FOR LONGITTED FOLDING

one

The invention relates to the technology of manufacturing products from tape materials and can be used, in particular, in the food industry in the manufacture of flat bags of film, as well as in radio engineering in the manufacture of flexible waveguides and capacitors.

Devices for longitudinal folding of ribbons are known, comprising guides, tape-moving, folding and forming rollers made with toothed elements 1.

However, these devices do not ensure the stability of the formation of the tape.

The closest to the invention to the technical essence is a device for longitudinal folding of the tape, comprising guide rollers, a folding element made in the form of a plate, having the shape of an isosceles triangle, with supporting straps located on the lateral sides of the plate, which are capable of forming in place their connection forming channel for the passage of the foldable tape, while the edges of the supporting

RIBBONS

the strips are made with flanging inside channel 2.

However, the known device provides sufficient stability of formation only for tapes with predetermined width and thickness corresponding to the dimensions of this forming channel, and cannot be used for expanding the limiting sizes of the storage tape for width and thickness.

10 The purpose of the invention is to expand the limiting sizes of the folded tapes in width and thickness and to increase the stability of the formation of the sheet by adjusting the dimensions of the forming channel. The goal is achieved by the fact that

Claims (2)

15, in the device for longitudinal folding of the tape, comprising a guide element and forming a channel for passing the folding tape, the channel base is rigidly fixed and has a central thrust groove of triangular cross section, the side walls of the forming channel are mounted with a possibility of movement along the transverse axis, and the top wall is mounted with vertically adjustable and has a lock. FIG. 1 shows the proposed device, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 section bb in fig. 1. The device contains guide strips 1 and 2, the gap between which is adjustable across the width of the foldable tape, Lorming channel 3, the side walls of which are formed by two segments 4 and 5 moving relative to axis 6 by means of a flywheel 7, and the base and top wall are in the form of rings 8 and 9, wherein the ring 8 is rigidly fixed and has a central thrust groove 10 of the triangular profile, and the ring 9 is adjusted to the height of the housing 11 fixed to the base 12, and its position is fixed by screws 13. The guide element can be turned out nen As in the case of the prototype, as yuschi.h guide rollers, but the use of guide bars with an adjustable gap width of the tape, more preferably between them, so it helps improve the accuracy of forming the tape. Guide rails 1 and 2, segments 4 and 5, rings 8 and 9 are made of a material with a low coefficient of friction, for example of fluoroplastic. The device operates as follows: The wrapper 14 is fed to the guiding strips 1 and 2 adjustable in its width, and when passing through the forming channel 3 formed by the segments 4 and 5 and the rings 8 and 9, is finally folded. The end of the folded tape 15 is pulled by a drive (not shown) to the next processing. The width of the forming channel 3 is adjusted by the flywheel 7, and due to the movement of the ring 9, with its subsequent fixation by the screw 13, the width of the already formed tape 15 is necessary. The presence of two, .-- adjustable segments 4 and b, and the adjustable ring 9 allows There is no possibility to change the dimensions of the forming channel. The use of the invention provides, in comparison with the prototype, an expansion of the limiting sizes of the folded tapes along the width and thickness, as well as an increase in the stability of the formation of the tape throughout, n f ,, rr g rr fj, R o no nr RVA length and increase due to this strength of the joint. Apparatus of the invention for longitudinal folding of a tape, comprising a guide element and forming a channel for passing the folding tape, characterized in that, in order to expand the size limits of the folding tapes in width and thickness and to increase the stability of the formation of the tape, the base of the channel is rigidly fixed and has a central a thrust groove of a triangular cross section, the side walls of the forming channel are mounted for movement along the transverse axis, and the upper wall is installed with the possibility of vertical th movement and has a detent, information sources, the received note in the examination, 1. Copyright certificate USSR № 581854, cl. B 65 B 43/10, 1975. 2. USSR author's certificate No. 756501, cl. H 01 C 13/02, 1978. 15 W yg.1