SU745968A1 - Apparatus for forming lap of bast plant stems - Google Patents

Description

(54) DEVICE FOR THE FORMATION OF TAPES FROM THE STEMES OF OAST CROPS

one

The invention relates to the field of textile engineering, concerns the primary processing of bast trees and can be used in flax plants.

A device is known for forming a ribbon from the stems of bast trees, which contain a conveyor installed before the dryer and a slatted feeder 1 after the dryer.

It is also known a device for forming a ribbon from the stems of bast trees, containing, feeding, and folding devices 2.

This device is designed to form a stem ribbon in a production line to produce a similar type of Flax bast in the belt and is installed before the dryer. In front of the feeding device there is a layer mechanism, and a folding conveyor is installed behind the folding mechanism.

This device is closest to the invention in its technical essence and the achieved result.

In this device, the flax on the straw, stretched into a layer and partially washed with a layer-forming mechanism, is placed on a transversal folding device on a transversely moving collecting conveyor in a continuous layer with a longitudinal arrangement of the stems.

The drawback of the device is that the stretched layer coming out of the layer-forming mechanism is not uniform in thickness and has gaps and is not fixed on the swinging slide of the folding device, which aggravates the unevenness, resulting in a non-uniform layer on the collecting conveyor. in thickness and width. Subsequent technological processing of such a layer is difficult. Moreover, the bast tape from such a layer is non-uniform with weakened areas and with gaps.

The aim of the invention is to increase

15 quality tape.

Claims (2)

This goal is achieved by the fact that the power supply device has a hinged rectangular cross-section groove and means for vibrating the groove in the direction of the layer movement, and the folding tool has a drum with needle bars mounted on a cylindrical surface mounted with the possibility of rotation relative to the horizontal axis perpendicular to the direction of movement of the layer, and the clamping conveyor mounted under the drum, which has an end face copier, with one part needle bars mounted freely relative to the drum and in contact with the cam, and the other is fixed to the drum. The clamping conveyor may have transverse clamping plates. -.i..Ha FIG. 1 shows a diagram of an apparatus for forming a tape; in fig. 2 is a section A-A of FIG. one; in fig. 3 is a section BB of FIG. 2. A device for forming a tape consists of a powering device which comprises a rectangular cross-section gutter 1 mounted on hinged links 2 connected to springs 3, and an inertia vibrator 4 made in the form of a cam driven and mounted under chute 1 Folding its attachment contains a drum 5, equipped with fixed needle-shaped strips 6, alternating with needle-like strips 7 moving in the axial direction of the drum and with rollers 8 in contact with a fixed copier 9. Clamping conveyor It is mounted under the drum and consists of a two-strand chain contour 10 with transverse clamping strips 11 and tension spring-loaded rollers 12. The guide discs 13 are freely mounted on the drum shaft. A drum 14 is set above the drum to level the tops of the stems, and a drum is behind the drum. - a puller 15 for preventing the stalks winding, for which the discharge drum 16 and rollers 17 are installed. The needle drum 5 and the chain loop 10 have a synchronous kinematic connection between them. A device for forming a ribbon from bast stem stems works as follows. A vertical layer of straw coming from the substance on the vibrating chute 1, under the influence of directional vibration, is fed with a constant support to the needle drum 5 and punctured the needles. The movable needle-strips 7, displacing with the help of the copier 9 across the movement, pinch the adjacent stems with needles and drag them along with them, dragging them in portions into a continuous layer — a ribbon. To hold the stems on the needles when they are pulled out of the vertical layer, the stems are pressed against the strips 11. Next, the presser strips 11 are retracted from the needles, the movable needle strips of the drum are retracted to the original position, the tape of the stems is removed from the needles and removed by the clamping conveyor, the discharge drum 16 and rollers 17 of the device. The formation of a homogeneous in thickness and width of the tape allows to increase the efficiency of the production line and to obtain the same type of linen bast in the tape of higher quality. Claim 1. A device for forming a ribbon from bast stalks, containing a feeding and unfolding device, characterized in that, in order to increase the quality of the tape, the feeding device has a hinged rectangular section groove and means for vibrating the gut in the direction of moving the layer, and the folding device is a drum with needle-shaped strips located on a cylindrical surface, mounted rotatably about a horizontal axis, perpendicular to the direction of movement of the layer, and a clamping conveyor set below the drum. 2. The device according to claim 1, characterized in that the drum has an end mine, with one part of the needle bars installed freely relative to the drum and in contact with the copier, and the other fixed to the drum. 3. The device according to paragraphs. 1 and 2, characterized in that the clamping conveyor has transverse clamping strips. Sources of information taken into account in the examination 1. USSR author's certificate number 234603, cl. D 01. B 1/32, 1967. 2. USSR author's certificate number 276316, cl. D 01 1/32 1/1969 (prototype). 15W Fig.1 / 7 .2 П фь.З