FI62939B - FOERFARANDE FOER KONTINUERLIG INNERBESTRYKNING AV EN SLANG OCHANORDNING ANVAENDBAR I FOERFARANDET - Google Patents

Description

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Patent and registra tyrela 'Antöka »selected and issued by the public * (32) (33) (31)« tuolkuu »—fe | lrd prtorttoc (71) Oy Visko Ab, Postfack 22, 10901 Hangö, Suomi-Finland (FI) (72 ) Vidar Kalm, Hanko, Reino Österlund, Hanko, Suomi-Finland (FI) (7M Keijo Heinonen (5 ^) Procedure for continuous inner coating of a hose and device useful in the process - Menetelmä letkun jatkuvaksi sisäpuoliseksi la pälylystämisäksää

This invention relates to a method and apparatus for supplying a fiber-intestine of regenerated cellulose liquid with adjustable hydrogen level. in the process of forming a moisture- and gas-tight film layer of the plate p4 inner surface of the fiber intestine following the drying and wetting processes.

Edge is the use of lacquers or dispersions between clamp puppies for the inner coating of hoses or intestines with difficulties in obtaining a homogeneous film due to a lack of fluid level controls and for subsequent drying and wetting processes. Edge is also an aqueous plate dispersion for the inner coating and subsequent drying process, combined with outer electrically driven press rolls for intestinal feeding. However, these briats make for a flawless film look process.

a 2 62939 In US Publication No. 3 378 379 bar, a method for processing the inside of a gel-shaped intestine intended for sausage peel has been prepared. The shell according to the US publication is intended especially for sausage-type sausages, in other words, the shell follows the sausage variety in the shrinkage that occurs during maturation, but easily detaches from the finished sausage. The process according to the US patent A does not achieve the removable gas and moisture-tight shell.

The passage of a fiber intestine into drying and wetting plants is known and can be improved, because a brittle and shrinkable material of the intestine and the homogeneous film layer formation of the liquid are not sufficiently considered. In addition, there are disadvantages to air bubbles and foam in the fluid of the fibro-intestine, which should be prevented.

The invention aims to eliminate said disadvantages. Characteristics of this continuous method for coating a fiber casing as claimed in claim 1. The pitcher of the device useful in the method of the invention is set forth in claim 2.

According to the accompanying drawings, the invention is illustrated by some exemplary solutions.

Pig. 1 schematically shows a plant with conveyor belts and roller conveyors for the fiber casing in connection with the drying processes including level & control for the liquid.

Pig. Figure 2 shows schematically a plant according to figure 1 with a combination of co-operating drying processes within a unit.

Pig. 1 shows a conveying conveyor belt 2 labeled AB for the fiber casing, which runs from a unrolling rack 1 via movable movable press rollers 3 along the conveyor belt 2, which is inclined and also adjustable in its end height position B. After the fiber casing is pulled through the press rollers 3, the fiber casing is filled with a aqueous plastic dispersion such that it fills the stretch 3-BC via a downwardly directed roller web 4, after which the fiber casing is pulled through the dryers 5 and 6 and passes a roller web 7 to an IR assembly 8 further through humidifier 9 and through press rolls 10. The end of the fiber casing cast through said press rolls, the press is opened and the air filling takes place. The fiber casing is now inflated to the desired diameter and is advanced at variable speed on the inclined conveyor belt 2, between the rollers 10 and by a voltage controlled pull in item 11 for rolling. - Extra dispersion liquid especially in the hose section 3-B is of value for the invention.

In the process of Fig. 1, the dispersion in the fiber casing is poured to the desired and constant level C under the dryer by moving the press roll pair 3 along the conveyor belt 2. The distance between C and dryer should be chosen so that the required runoff height is achieved in relation to the intestinal velocity. This pre-displacement occurs by starting an electric motor, which performs the pre-displacement. The impulse for this movement is automated by setting level sensing at C, which gives impulse to the movement of the roll pair 3. The feed belt or conveyor belt 2 is preferably inclined with point B in the higher position at point A. This facilitates the loading of the dispersion upon replacement of the bowel roll and prevents air from the inflated fiber casing from penetrating the press roll pair 3 except that additional dispersion is available. Of particular importance to the process is also the octagonal roller web between B and C. Instead of known turrets, these are replaced by roller tracks 4 and 7, which are steerable and supportive and give the fiber bowel a softer bend, reduced load on the fiber bowel and require less space than said one. turning wheel.

According to Fig. 1, the fiber casing is upright for passage through the combined drying system consisting of an IR assembly 5 and the dryer 6. The IR assembly 5 provides a permeable preheating that evenly increases the heating of the dispersion without possible foam formation throughout the cross-section of the fiber casing, before fiber The intestine goes into the dryer 6. Thanks to this preheating, the process speed can be increased, which is of significant value. Drying in the dryer 6 takes place with hot p4pl4st air. Thanks to this combination of different dryings, uniform and homogeneous coating and film formation can also be better controlled.

In dryer 6, s4 releases a lot of water, causing the dispersion to create a homogeneous solid film formation on the inner side of the fibrous gut. The D4 fiber intestine corams out of the dryer 6, the intestinal surface is sensitive to mechanical action. Therefore, it is advantageous to pass it between the roll paths 7 in a soft surface. This so-called In this case, the roller web guides and supports the fiber intestine into a horizontal IR aggregate 8. By placing the IR aggregate 3 after the roller web 7 one can keep the bowel temperature lower and thereby f4 a more flexible bowel d4 it is bent over the roller web 7, which is by value. The IR assembly 8 provides the plastic film with the final heat treatment to obtain a homogeneous film. After a short air cooling, humidification of the fiber casing takes place at the end of the process in removable humidifiers 9. These humidifiers are two successive chambers in which a low vacuum is released and from which condensate or excess moisture is led to a drain. At the press rolls 10, the fiber casing should be well cooled and amid so that no damage occurs during compression. The winding takes place with an assembly 11, which operates with variable winding voltage.

Pig. 2 schematically shows a plant for a process constituting a combination device for Fig. 1. The difference is that the fiber casing undergoes a double process in the heating procedure with associated IR units such as a combination within a unit. This is intended to ensure the best possible efficiency in the processes and also utilize an energy saving based on p4 a faster production process. In addition, 5 62939 preheating and dryer heating are under better control. After a first pass through the fibrous intestine, a downwardly directed passage through the guiding, pelvic roll path 7 follows. As mentioned, the cooling and wetting of the heated and brittle fibrous intestine, which is also shrinkable, is crucial. Therefore, it is important to be able to control the quality of the fibrous gut during the process. By making the humidification chambers directly in the direction of the fibrous intestine, the humidification can be controlled at the desired temperature. The actual moisture suction can also be controlled from connected cloths in the humidification chambers.

For this purpose, in order to facilitate the compression of the humidified fiber intestine in the press rolls 10 of the process, a rolling system 10a consisting of two rolling planes, which are wedge-shaped mounted above the pressurized press rolls 10, is used for this. This allows a compression without folding at the edge of the fiber intestine.

Other solutions and combinations may also be considered within the scope of the invention. Of course, the external design of one or more cooperating devices may vary.

6 62939

A method of continuously coating the inside of a tubing or fiber casing consisting mainly of cellulose regenerated, in which method the tubing is conveyed by two press roll pairs (3 »10) aligned one another in the conveying direction of the tubing, existing between the roll pair (3» 10) the hose part is filled with a predetermined amount of dispersion liquid, whereby the inner wall of the hose is coated, in which the hose existing between the press roller pair (3, 10) is additionally filled with air as the hose likes to enter the drying combination (5 »6) including the drying and wetting process. The chutes are characterized in that the hose to be treated with aqueous plastic dispersion is conveyed obliquely upwards by means of the adjustable press roller pair (3) on an inclined conveyor belt (2) and then by means of a roller web (4) downwards in a housing and thereafter upwardly pouring liquid level ( c) at a desired height position at a suitable distance from the drying combination (5 »6), through which the hose is drawn to the drying g and humidification processes.

Apparatus for realizing the method according to claim 1, characterized in that it comprises in the direction of transport of the hose a first and second pair of press rolls (3 »10), the first of which is adjustable relative to the direction of transport of the hose; a sloping conveyor belt (2) inclined in the direction of transport of the hose in conjunction with the first roll pair (3) and thereafter a roll path (4) which guides the hose in a downward bend, whereupon, at appropriate distance, the drying combination (5 »6) takes, humidifying and final control devices (8, 9) * before the second press roll pair (10).

3. Apparatus according to claim 2, characterized in that the first pair of press rolls (3) is positioned with respect to the inclined conveyor belt (2).

Claims (2)

7 62939 tillsammans med conveybandet (2) conveyor slangen to be rolled (4), variably dispersed heaters and adjusting the genome of the roller conveyor (3) and conveyor belt (2) inbordes plats i banana transport-riktning. 1. A method primarily regenerated cellulose of the tube or of the intestinal continuously for internally coating a substrate, wherein a hose is passed through the two pressure-roller pair (3 »10) which is adapted to hose the running direction, wherein located between the pair of rollers (3» 10) part of the hose is filled with a predetermined the amount of dispersion liquid with which the inner wall of the hose becomes coated, the hose between the pairs of compression rollers (3, 10) being additionally filled with air as the hose passes to the drying combination (5, 6) with drying and wetting treatments. 3. processes. Device for carrying out the method according to claim 1, characterized in that it comprises a first and a second pair of compression rollers (3 »10) in the direction of travel of the hose, the first (3) of which is adjustable with respect to the direction of travel of the hose; conveyor belt (2) inclined upwards in the direction of travel of the hose in connection with the first pair of rollers (3) and then a roller track (4) guiding the hose downwards in an arc »