SU1516531A1 - Arrangement for cleaning the surface of press rolls of card - Google Patents

Abstract

The invention relates to spinning textile industry and can be used in carding machines. In order to increase the cleaning efficiency, the device contains pressure rollers and upper and lower doctor blades mounted on them, pressed with a bracket, axle and levers with pressure springs against the surface of the pressure rollers. Working knives, installed along the entire length of the roll at an angle of 75 ÷ 120 ° to each other, are in contact with the surface of the pressing shaft. Knives have one-sided sharpening. The width of the working knives provides a zone of cleaning the surface of the shaft with an angle of 30 ÷ 60 °. To the working plane of each working knife adjacent additional knives. In addition, the device contains a horizontal rod to which the working knives are rigidly attached, as well as rods to which the additional knives are respectively attached. The rods have special bevels at the ends in contact with the rollers and are pressed against the rollers by springs. 3 il.

Description

The invention relates to the spinning production of textile industry and can be used in carding machines.

The purpose of the invention is to increase the cleaning efficiency.

Figure 1 presents the scheme of the device on the pressure rollers; Fig. 2 is a plan view of the blades, top view; on fig.Z - diagram of the device, front view, as well as A-A view B, and section BB.

Figure 1 shows the crushing shafts and the upper and lower blades 2 and 3 mounted on them, pressed using the bracket 4, axis 5, levers

6, clamping springs 7 to the surface of the pressing rolls.

Figure 2 shows the location of the set of knives on the pressing rack. Working knives 8 and 9, installed along the entire length of the roll at an angle (75-120), are in contact with the surface of the pressing shaft. Knives 8 and 9 have one-sided sharpening. The blade plane, which has no sharpening, and is shown in the diagram by a thick line, is a work plane. The tip of the working knives is made along an ellipse due to the contact with the surface of the pressure shaft at an angle.

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At the same time, the width of the working knives provides a zone for cleaning the shaft surface with an angle (l (30 - 60 °) to the working plane of each working knife adjacent additional knives 10 and 11.

Fig. 3 shows a horizontal rod 12, to which the working knives are rigidly attached, as well as the rods 13 and 14, to which, respectively, additional knives 10 and 11 are fixed. The rods 13 and 14 have special inclined cuts 15 and 16 in contact with the rollers 17 The rods 13 and 14 are pressed against the rollers 17 by springs 18 and K9.

The device works as follows.

By means of a cam or other mechanism (not shown), the horizontal rod 12 moves reciprocally along the axis for a length. Together with the rod, the set of working knives 8 and 9 is also moved. In this case, the tip lix contacts the working surface of the pressing rollers and cleans the shafts of impurities. When moving to the left of the one shown in figure 3

position working knives 8 and 9, wasp

There is a real pressure on the auxiliary knives 10 and 11, they are moved and, accordingly, the rods 13 and 14 move accordingly. As a result of the rods moving along the inclined cuts in contact with the freely rotating rollers 17-1, the rod 13 is pressed upwards together with the auxiliary knives 10 working surface of working knives 8; the rod 14 is lowered along with the additional knives 11 down to a height h. Moreover, additional knives 11, also having one-sided sharpening, clean the working planes of the working knives 9. When the device is moved to the right, the working planes of the working knives 8 are cleaned from

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mo1G (by lowering additional knives 10. Thus, cleaning the surface of the pressing shafts with working knives and cleaning the working planes of working knives with additional knives. Rotation of the shafts, reciprocating movement of the working knives at an angle to the axis of the rolls, provides multiple cleaning of each working point surfaces of squeezing shaft.

The device makes it possible to better clean the surface of the pressing rolls by passing the tips of the knives several times at the same point on the surface of the pressing shaft. All this leads to an increase in the cleaning efficiency of the roller shafts, increases the productivity of carding machines by 20%, the quality of the yarn produced and reduces the yarn breakability by up to 10% at subsequent technological transitions.

Claims (1)

Invention Formula A device for cleaning the surface of the pressing shafts of a carding machine, containing an upper and lower doctor blade, made in the form of working knives mounted on a corresponding rod with a one-sided sharpening mechanism for reciprocating the doctor blade, which in order to increase the cleaning efficiency, each roller has an additional knife for cleaning the surface of the working knife and the mechanism of its vertical movement, containing a roller and a spring-loaded rod with a bevel for contact with the roller, at the same time the rod on which oryh fixed working blades arranged horizontally, and each additional knife blade adjoins the working side opposite sharpening, the working knives are mounted on horizontal bars at an angle of 75-120 ° to each other. 12 10 1 15 J6 Aa FS / g.Z.