RU2402647C1 - Canvass-free feeder of textile machines - Google Patents

Abstract

FIELD: textile, paper.

SUBSTANCE: canvass-free feeder comprises shaft with dedusting facilities at its walls, outlet shafts, horizontal axes with plates installed so that they may rotationally oscillate, additional walls forming sections joined to pneumatic suction system. Besides over the shaft in upper and lower parts of common pneumatic line, there are upper and lower pressure controllers installed with the possibility of axial displacement. Besides surface of upper controller has curvilinear shape, and lower controller has shape in the form of two planes joined to each other hingedly. Horizontal axes with plates are installed in groups that alternate in staggered order on the left and on the right along shaft height, at the same time plate profile has elliptic shape, and outlet shafts are arranged in the form of perforated condensers.

EFFECT: reduced irregularity of fibrous layer formed by canvass-free feeder.

3 dwg

Description

The invention relates to the textile industry, and in particular to devices for fiberless feeding fiber mass of carding machines.

Known bunker feeder carding machine [Patent No. 4038838 Germany, MKI D01G 23/02. Hopper feeder carding machine / LEIFELD FERDINAND DIPLING; applicant and patent holder TRUETZSCHLER & CO [DE]. - No. DE 1990403883819901206; declared 12/06/1990; publ. 07/25/1991], containing in the upper part a vertical backup chamber with air outlet openings. In the lower part of the backup chamber, a feed roller is installed to supply fibers to the loosening drum, which discharges the fibers into the supply chamber made with air outlet openings in the lower part. A pair of output rollers is installed at the outlet of the feed chamber to feed the fibers directly to the carding machine. In the upper part, the supply chamber is connected to a housing located above it, in which a fan is installed, which supplies air to it to uniformly seal the fiber column inside it. The same fan, which operates in a closed mode, removes air leaving the outlet channel through the openings in the lower part of the supply chamber.

The disadvantage of this device is the uneven distribution of the field of the velocity vector of the sealing stream over the cross section of the lower chamber and the excessive accumulation of dust in air moving along a closed circuit and in each cycle filtered through a column of fibrous material.

The prototype adopted a canvasless feeder textile machines [Certificate. Utility Model No. 11210, Russian Federation, IPC6 D01G 15/40. Sewingless feeder of textile machines / Frolova I.V., Kakhramanov F.R., Melgunova S.N., Grigoryeva E.Yu; Applicant and patent holder Ivanovo State Textile Academy, No. 99102102/20; declared 02/04/99; publ. 09/16/99. Bull. No. 9 - 5 p.: 3 ill.], Containing loading means, a shaft with dust removal means on its walls and exhaust shafts, horizontal axes with plates are mounted on both sides of the shaft in the upper, middle and lower parts of the shaft, and in thickness additional walls are installed on both sides of the feeder, forming sections associated with the pneumatic suction system.

The disadvantage of the prototype is the inconsistency of the linear density of the semi-finished pulp in the mine due to the uneven distribution of the air flow velocity over the cross section of the supply shaft due to the formation of pressure of the air flow coming from the common duct.

The technical result of the invention is to reduce the unevenness of the fibrous layer formed by a blanketless feeder both on a separate carding machine and between the feeders of the entire chain of carding machines by stabilizing air pressure and regulating the direction of air flow throughout the entire section of the shaft and over its entire height.

The specified technical result is achieved by the fact that in the containerless feeder of textile machines containing a shaft with dedusting means on its walls, exhaust shafts, horizontal axes with plates rotatably mounted for rotational oscillation, additional walls forming sections associated with the pneumatic suction system, according to the invention, above a shaft in the upper and lower parts of the common pneumatic pipeline with the possibility of axial displacement installed pressure regulators, and the surface of the upper regulator has a curve frosted, and the lower controller has a shape in the form of two planes articulated to each other, the horizontal axis with the plates are installed in groups alternating in a checkerboard pattern on the left and right along the height of the shaft, while the profile of the plate has an elliptical shape, and the exhaust shafts are made in the form perforated capacitors.

The specified result is achieved due to the fact that pressure regulators are installed in the topless and lower part of the common pneumatic pipeline, which together create a directed high-speed fiber-air flow to the rear wall of the mine along the fiber-air flow from the general pneumatic pipe. A high-speed directional flow cuts off the shaft section from the common pneumatic line, minimizes pressure fluctuations in the shaft, and abuts against groups of plates on the back wall made with an elliptical profile. Part of the air flow, together with dust and weeds, passes through the gaps of the groups of oscillating plates, and part of the air flow together with the fiber is reflected from the groups of plates, creating a swirl, the stream enters the next group of oscillating plates of the front wall of the shaft lower than the first groups of plates on the back the wall, and further movement of the air flow and fiber goes according to the above scheme, i.e. in a checkerboard pattern. The implementation of the profile of the plate of an elliptical shape allows the fiber-air flow to freely and more smoothly without undue tightening pass through all groups of plates along the shaft section. Thus, the high-speed air stream partially cuts off and reduces the pressure on the fiber column in the shaft, and the subsequent swirl of the reflected stream continues this process, thereby forming a vortex track, which attenuates in the perforated exhaust shafts, where the final suction and cleaning of the fiber from weeds impurities with the formation of the web. As a result, the unevenness of the fibrous layer is reduced due to stabilization of air pressure and regulation of the direction of air flow throughout the section and the height of the shaft.

Figure 1 presents a diagram of a canvasless feeder for feeding fibrous material to carding machines in a production line, figure 2 - design of the upper pressure regulator, figure 3 - design of the lower pressure regulator.

The canvasless feeder contains a common pneumatic line 1 with the upper 2 and lower 3 pressure regulators installed in it. The surface of the upper 2 pressure regulator has a curved shape, and the lower 3 pressure regulator consists of planes 4 and 5, interconnected pivotally. The plane 5 of the lower pressure regulator 3 is parallel to the front wall 6 of the shaft 7, the flow rate 8 is directed to the rear wall 9 and a group of plates 10 with an elliptical profile embedded in it, with respect to which the group of plates 11 on the front wall of the shaft is lower, the next group of the plates 12 is located on the back wall level lower with respect to the group of plates 11, etc. in a checkerboard pattern. In the lower part of the shaft exhaust shafts 13 are installed, made in the form of perforated condensers. Vacuum chambers 14 and 15 adjoin the front and rear walls of the shaft, which are equipped with additional air ducts and are connected to the pneumatic suction system.

The fiberless feeder operates as follows: the fiber-air flow is supplied through a common pneumatic pipe system 1 (Fig. 1), where due to the one-sided expansion of the cross-section of the pneumatic pipe above the shaft 7, part of the fiber-optic high-speed stream 8 is separated from the main fiber-air stream 8. In this case, the upper pressure regulator 2 (Fig. 2) above the first shaft 7 occupies the upper position 2a, providing minimal compression of the air flow over the first shaft 7 in the production line. The lower pressure regulator 3 (Fig. 3), connected simultaneously with the common pneumatic conduit and the front wall 6 of the shaft 7, having an articulation between the flat wall 4 and the plane 5, occupies the O position above the first shaft so that the high-speed flow 8 cuts off the section of the shaft from system of a common pneumatic pipeline and was directed to the rear wall 9 to a group of plates 10 with an elliptical profile that oscillate and pass part of the air together with weed impurities into the vacuum chamber 15, and the other part together with the fiber creates a vortex stream 16, which abuts They are grouped into a group of oscillating plates 11, while part of the flow with weed impurities passes into the vacuum chamber 14, the other part is reflected together with the fiber and creates a vortex stream 16. A similar operation takes place across all groups of oscillating plates with the same process for cleaning the fiber and creating vortex zones in front of them, forming a vortex track along the entire shaft 7 in height with a distance l between adjacent (neighboring) vortex zones and with a distance h along the width of the shaft with final attenuation in the outlet lakh 13, made in the form of perforated condensers, where the final suction and cleaning of the fiber with the formation of the fabric.

The filling level of the feeder, as well as the regulation of the operation of the upper and lower pressure regulators, is controlled by the automation system due to the operation of the photosensors, namely, when the shaft is completely filled, the lower pressure regulator 3 becomes in position A, as a result of which the fiber flow and the main part of the air flow pass past the mine. When filling the subsequent shaft, the upper pressure regulator 2 is set to position 2b and ensures that the air-fiber flow is compressed to the section of the shaft, while the lower pressure regulator is set to position B, providing a direction of high-speed flow to the upper groups of plates built into the back wall of the next shaft.

Claims (1)

A canvasless feeder of textile machines containing a shaft with dust removal means on its walls, exhaust shafts, horizontal axes with plates mounted for rotational oscillation, additional walls forming sections associated with the pneumatic suction system, characterized in that above the shaft in the upper and lower parts of the common pneumatic piping with the possibility of axial movement of the upper and lower pressure regulators are installed, and the surface of the upper regulator has a curved shape, and the lower regulator has form in two planes, pivotally interconnected, horizontal axis with blades mounted in groups, alternately staggered to the left and right adjustment shaft, wherein the plate has an elliptical shape and discharge shafts are designed as perforated condensers.

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