SU1524945A1 - Apparatus for applying coatings on roll material - Google Patents

Abstract

The invention relates to devices for coating a moving web material by immersing it in a fluid substance and can be used in the optical, furniture and other industries. The purpose of the invention is to improve the quality of the coating material. For this, the housing of the sizing roller is made of a composite of mating outer and inner cylindrical elements. The inner element is provided with a protrusion in the middle of the roll and channels on the side ends and forms a figured cavity with the outer element. This shaped cavity is filled with a heat-conducting composite material. In addition, in the hole of the inner cylindrical element mounted heating device mounted on fixed supports. 3 il.

Description

The invention relates to devices for coating a moving web material by immersing it in a flowable substance, for example, for applying resin to paper, and can be used in the optical, furniture and other industries.

The aim of the invention is to increase the quality of the coating material.

FIG. 1 shows the device, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 — node 1 in FIG. one.

The device for applying the coating to the rolled material comprises a bath 1 for the coating composition, consisting of an internal container 2 with resin 3, an external thermally insulated container 4 filled with heating polyethylene siloxane liquid 5, and equipped with a thermoelectric heater 6 and a temperature sensor 7.

On the supports 8 of the bath for the coating composition, a tensioning mechanism for the web material is assembled, consisting of frame 9,

bearing in the grooves of the spring-loaded roller 10.. The mechanism 1 1 is installed in the working position on the frame called screws 12.

Rollers 14 are mounted on frame 13 to calibrate the coating on the web material. The rolls are driven by a chain drive through sprocket 15 and gear mechanism 16.

The gage rolls 14 are heated by a thermoelectric heater 7 installed in fixed supports 18. The clearance between the rolls 14 is adjusted by a roll movement mechanism 19 consisting of a screw 20 and a handle 21.

The rolls are made up of matched cylindrical parts 22 and 23 forming a shaped cavity in the collection, filled with thermally conductive composite material 24. To avoid deformation of the roll, the cavity is made with a protrusion in the middle of the roll, besides, the ends of the roll have channels 25 that remove excess composite material and gas-air mixture.

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The device has a twist chamber 26, an unwinding device consisting of drums 27 and 28, a pulling roller 29, a coating thickness control sensor 30, and a pulling device 31 for removing tar evaporations.

The device works as follows.

The roll is mounted on the drum 27, the tension mechanism is raised along the groove of the frame 9 until it leaves the bath 2, the roll material 32 is pulled under the tension roller 10 between the calibrating rollers 14 and the roll material is fixed in the groove of the drum 28. The tension mechanism is lowered the frame groove to its original position before the coil material is pressed, the spring-loaded roller 10 and secured the frame with a screw 12. Set the required gap between the rollers 14 by means of a screw mechanism 19. Thermal-electric heaters 17 heat the rollers 14 having a figured a cavity filled with composite material 24. Figurnal along the length is made with a protrusion in the middle of the roll, which compensates for the deformation of the roll when heated. To release an excess of the composite material and the gas-blowing mixture from the cavity, the channels 25 on the rolls are made. A device for unwinding the roll material, consisting of drums 27, 28 and roll 29, transports the roll material. When the web material passes through the bath 2, the resin 3 is applied to it. The canvas with the resin applied passes through the gap between the sizing rollers 14, then the material chamber 26 passes, the coating thickness control position and is wound on the drum 28.

Claims (1)

Invention Formula A device for applying a coating to a web material comprising a bath for a coating composition, an upper and a lower gauge rolls, a moving roll gauge mechanism, a toothed roll drive mechanism and a roll material tension mechanism, characterized in that, in order to improve the quality of the coating, the roll body is made a composite of mating outer and inner cylindrical elements, the inner element forming a figured cavity with the outer element filled with heat-conducting composite material, provided with a protrusion in the middle of the roll and channels on the side ends, and a heating device mounted on fixed supports is installed in the hole of the inner element. 27 29 32 thirty 11 16 23 2i (L) C7 jbuije. I h LA, |) (m -1; bifu n; 1 Pf.iaKKjp T; i: i4i) | H-HK (I. Ig; h-, Kn; i | irhT (I | i:, 1mp, hh k, h 3 "K; d) 7171; 7Tire; 1zh56LI olmpmnos VNI11G1I Goskhdprstneiiiog) Committee on iKioopi iciiii - .; ; pgkrp I Kill (. (. (. 113035, Moskpa, Zh 35, l a iiH h: iH naG), l 4 1roizv () LST1) 1-1n; () - n; 1lat1, | скsk11n combine “Shares. H: -. i. , f1or |), 1,,. one ,. ii ::, AI / 4- / 4 dried 21 C and g Fig.Z