JPH02182987A - Bowed roll - Google Patents

Abstract

PURPOSE:To remove water or deposit on the surface of bowed roll by revolving support having supporting means of plural wiper blades around mandrel of roll and controlling position of the support. CONSTITUTION:A support 8 is revolved around a mandrel 10 of roll and position of the support is controlled to control height of supporting means of wiper blades, then the wiper blades are uniformly brought to contact with the curved surface of bowed roll 1 in an axial direction of the roll, thus take-in of water between the roll and a wire 2 is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a bow trawler used in paper machines, textile machines, etc.

[Conventional technology]

In a paper machine, a bot 90-1 is used as shown in FIG. 2 for the purpose of widening the width of paper, wire, felt, etc. and/or smoothing out wrinkles.

As shown in Fig. 3, the Bowbiroll 01 has a curved core metal 04 and a rotatable anti-7 friction bearing 0.
3, and the outer ring is flexible! Pass through the rubber sleeve 02 and insert it into the outer rubber sleeve while maintaining the curved shape.
2 is brought into contact with paper, wire, felt, etc. and rotated to widen the width, smooth out wrinkles, etc.

As shown in FIG. 4, the roll surface used for widening the wire is cleaned with a shower 06 in order to prevent deposits on the surface of the wire 05 from transferring and accumulating on the surface of the roll o1. This cleaning water hits the roll surface and scatters, and also becomes mist when it separates from the roll as it rotates with the roll, blowing out from the exit side of the contact area between the roll and the wire, and worsening the surrounding atmosphere. There is.

[Problem to be solved by the invention]

A doctor device is used in normal straight rolls, and the doctor blade removes water from the roll surface before it comes into contact with the wire, thereby preventing deterioration of the surrounding atmosphere.

However, with a curved bow roll, it is not possible to bring the bow roll into uniform contact with the roll surface over its entire axial length. Therefore, it has been difficult to prevent the surrounding atmosphere from deteriorating.

The present invention aims to provide a bow troll that overcomes the above-mentioned drawbacks.

[Means to solve the problem]

The bowtrol of the present invention includes a support that is attached to a roll core bar so as to be able to rotate around it and adjust its position, and extends in the axial direction of the roll, and is attached to the support at intervals so that its height can be adjusted. The wiper blade support device includes a plurality of wiper blade support devices, and a flexible wiper plate that is attached to the wiper blade support device, contacts the roll surface, and extends in the axial direction of the roll.

[For production]

In the present invention, by pivoting the support around the core of the roll and adjusting its position, and by adjusting the height of the support device of the wiper plate 9, the wiper blade 9 can be attached to the curved bow roll surface. Uniform contact in the axial direction. This removes water and deposits on the bow roll surface and prevents generation of mist and deposits from contaminating paper, fibers, wires, felt, etc. carried by the pot 90-roll.

〔Example〕

An embodiment of the present invention will be described with reference to FIG.

Reference numeral 1 designates a pot 90-roll, of which only the central portion 1' and one end 1'' are shown in the figure. Reference numeral 2 designates a wire whose width is expanded by the bow roll 1.

Two arm members 11 and 12 forming the mounting arms of the two supports 8 sandwich the portion of the core metal 10 that penetrates the roll 1 and supports the roll 1 with a bearing (not shown) that protrudes from the end of the roll. A support 8 is connected to the tip of one arm member 11 by a bolt 13.
is installed. By loosening this bolt 13, the support 8 pivots around the core metal 10, and by tightening the bolt 13 again and fixing the members 11 and 12, the support 8 can be positioned. The support 8 extends in the axial direction of the roll 1, and a plurality of support fingers 7 are screwed onto the support 8 so that their protruding length can be adjusted at an appropriate pitch. At the tip of the support finger 7.

4. Backing plate to which flexible Wainozo plate 93 is adhered. A wiper blade holding plate 5 is attached by bolts 6, and the tip of the wiper plate 93 is in contact with a portion on the rotation inlet side A of the contact portion between the roll 1 and the wire 2 on the surface of the roll 10.

The support finger 7, the backing plate 4 and the holding plate 5 constitute a support device for the wiper plate. In addition,
9 is a cleaning jaw that sprays cleaning water onto the roll surface.

In this embodiment, the bolt 13 is loosened and the arm member 11
, 12 are turned around the core metal 10 and the upper bolt 13 is tightened to adjust the position of the support 8. Then, each support finger 7 is rotated to adjust the protruding length of the support 8, and the wiper blade 3 is brought into uniform contact along the curved surface of the roll 10.

As shown in FIG. 1, part of the cleaning water sprayed onto the surface of the roll 1 from the cleaning jaw 9 bounces off the roll surface, and the rest goes around with the roll as the roll rotates. Since the roll surface is in contact with the roll surface along the axial direction, these splashed water and runny water are scraped off by the wiper blade as shown by W in the figure.

Therefore, the cleaning water is not carried to the part A where the roll 1 and the wire 2 are in contact with each other, and water is prevented from being brought into the contact part between the roll 1 and the wire 2. Therefore, the mist is not scattered from the part B on the exit side of the contact portion between the roll 1 and the wire 2, and the atmosphere can be kept clean.

〔Effect of the invention〕

As explained above, the present invention prevents water from being brought into the contact area between the roll and the wire by bringing the flexible wiper blade into reliable contact along the surface of the pot 90-ru. It also prevents mist from flying out from the exit side of the contact area of the wire and the paper, fibers, wires, and felt carried by the roll. It is possible to prevent contamination such as

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of an embodiment of the present invention, Fig. 2 is an explanatory diagram showing a conventional single-shell bow roll, Fig. 3 is a vertical cross-sectional view of the conventional bow trol, and Fig. 4 is a conventional one-shell bow roll. It is an explanatory view showing a bow roll installation state for paper machine wire. 1... Bow troll, 2... Wire. 3... Wiper plate, 4... Metching plate. 5... Presser plate, 6... ...Bolt. 7. Support finger. 8. Support finger. 9. Washing jaw. 10. Roll core metal.

Claims (1)

[Claims] A support that extends in the axial direction of the roll and is attached to the roll core metal so that its position can be adjusted by rotating around it, and a support device for a plurality of wiper blades that are attached to the support at intervals so that their protruding height can be adjusted. and a bow roll, comprising a flexible wiper blade attached to the wiper blade support device and in contact with the roll surface.