| US3844189A | 1974-10-29 | |||
| JPS60202045A | 1985-10-12 |
| CLAIMS: 1) Versatile automatic start & stop rewinder machine for tissue paper in continuous, including the winding station B, the winding station C, the final paper edge rewinding station and extraction D, the final paper edge rewinding station and extraction E of the finished roll (log); combs H for winding exchange from the winding station B at C, combs I for the winding exchange from the winding station C at B; couple of upper roll clamps P and L respectively for the winding station B and C; gluing group T for cardboard core; taking group S of the glued core and position of the same into the point in which it's taken to be positioned into the winding station where the new paper roll will be created; the group S with the arm during the core positioning phase into the points x or Y transfers the finished paper rolls respectively into the extractor E or D; winding mandrel M alone, or winding mandrel M with cardboard core or only cardboard core M, are taken either from the point Y nor from the point χ to be brought into the respective winding point when the new winding phase is going to start during the winding exchange respectively from one winding station to the other winding station. The only cardboard core or the mandrel with or without cardboard core, are bonded at their extremities only leaving the possibility to turn to allow the creation of the paper roll. 2) Versatile automatic start & stop rewinder machine in continuous according to the claim 1 characterized with two independent winding station B / C and two independent winding station D / E of rewinder of the final glued edge and extraction of the paper rolls bringing them towards the following processing. 3) Versatile automatic start & stop rewinder machine in continuous according to the claim 1 and the claim 2 characterized with tissue paper roll winding with single lower roll, couple of upper rolls (clamps), (mobiles upwards in function of the enlargement of the roll diameter) and metal mandrel carrying cardboard cores of different diameters, entire or cut at different sizes on its length. 4) Versatile automatic start & stop rewinder machine in continuous according to the claim 1 and the claim 2 characterized with tissue paper roll winding with single lower roll, couple of upper rolls (clamps), (mobiles upwards in function of the enlargement of the roll diameter) with the only metal mandrel for the production of paper roll without cardboard core. 5) Versatile automatic start & stop rewinder machine in continuous according to the claim 1 and the claim 2 characterized with tissue paper roll winding with single lower roll, couple of upper rolls (clamps), (mobiles upwards in function of the enlargement of the roll diameter with the only entire cardboard core of different diameter. 6) Versatile automatic start & stop rewinder machine in continuous according to the claim 1 and the claim 2 characterized from the winding exchange from one winding station B or C respectively towards the station C or B maintaining the same winding speed with the winding rolls F and C always at the same winding speed. 7) Versatile automatic start & stop rewinder machine in continuous according to the claim 1 and the claim 2 is characterized from the gluing of the final paper edge by means of a gluing group Q for the winding station B and from the gluing group R for the winding station C. It's characterized from the only positioning group S of the core into the properly positions Y or χ before starting the roll winding. It's characterized that in each winding station, when the wished diameter of the paper roll is joined and the exchange of the paper into the other winding station has been done, the paper never stops, while the station where is finished the winding stops and there is the expulsion with the arm S of the finished paper roll towards the rewinding station of the final edge and extraction of the finished roll. 8) The versatile automatic start & stop rewinder machine in continuous according to the claim 1-3 and 7 is characterized that it winds the tissue paper roll (log) neither with the only steel mandrel M nor only with the entire cardboard core M or the metal mandrel with cardboard core entire or cut at the wished sizes. These are interposed for example between the lower motorized winding rolls F-G and their respective two upper motorized rolls PP-LL (clamps) into the respective winding stations B and C. 9) The versatile automatic start & stop rewinder machine in continuous according to the claim 1 is characterized that the winding station B and C respectively with the only lower motorized rolls F or G rather then with the respective two upper rolls P-P or L-L with only one respective upper roll vertically mobile and motorized P or L on the same vertical axe of the fixed lower motorized rolls. The winding phase into the stations B and C between the only two rolls for each station on the same vertical axe with a fixed lower motorized roll and one upper mobile motorized roll (upper motorized pressina). Between the two rolls is anyway positioned for the creation of the paper roll or one entire cardboard core, or only one steel or other material mandrel, or one steel or other material mandrel with inserted an entire cardboard core or already pre cut cores at size. The only cardboard core or the mandrel with or without cardboard core, are bonded at their extremities only leaving the possibility to turn to create the paper roll. |
DESCRIPTION:
a) This invention is about the versatile rewinder machine in continuous start & stop and in particularly the invention is the presence of two independent log winding stations, two rewinding stations and two stations for the paper final edge gluing and extraction. The presence of two winding stations allows to unwind the parent reel in continuous with the whole advantages that have the rewinder machines in continuous, but it allows also to create the tissue paper roll (log) with the all advantages of the start & stop rewinder machines.
b) The automatic rewinder machines in continuous and the semiautomatic start & stop rewinder machines are widely used on tissue paper converting plant. They convert parent reels, coming out from paper mills, in rolls (log) having small diameters with same length as the parent reels for then be cut (at the right size of toilet paper, kitchen towel and industrial rolls) from the log saw which is positioned just after the above mentioned rewinder machine in the complete line for tissue paper products. In the past and at today the two existing rewinder machines (automatic rewinder machine in continuous and semiautomatic start & stop rewinder machine) have got advantages and disadvantages in both types. The versatile rewinder machine practically collect the advantages of both rewinders. In the versatile rewinder machine there are used two winding sections. These winding sections are used for rewind the paper in continuous (with never stopping the speed of the paper) because once the winding is finished in one station the new winding begins in the other station, with never stopping the paper. (This allows to have all the advantages of the automatic rewinder machines in continuous). Once the paper winding is finished on one of the station, it stops immediatly after that the paper continues the rewinding on the other station, without the paper never stops, beginning the new winding on the other station. Each winding station, once the paper winding is finished, stops till 0 speed and the paper roll of each winding station is expelled on the properly final edge gluing extractor. This phase in which the wound roll (log) stops, allows to have all the advantages of the semiautomatic start & stop rewinder machines.
c) The invention is proposed to realize one automatic rewinder machine for tissue paper where the tissue paper is rewind into rolls having the most various sizes with roll winding speed always constant and it never stops till the end of the parent reel.
Where it can be wound paper rolls (log) having a minimum diameter of 80mm up to the max diameter of 500mm and more.
Where it can be used cardboard cores having at least a minimum diameter of 25mm and a max diameter of 80mm and more.
Where it can be wound alternatively two paper rolls (log) with different diameters and respectively with intermediate processing on the different paper. For example, it is possible to set up on the versatile rewinder machine one paper roll having a diameter of 500mm without plies embossing in one winding station while on the other winding station it is possible to rewind one paper roll having a diameter of 200mm with plies embossing.
Where the rewinder machine can be fully automatic, and it has got a certainly cost, can be semiautomatic with one operator and with a very low cost, without changing the final production specification and quality of the tissue paper rolls (log).
According to the invention, all of it can be obtained with the versatile start & stop rewinder machine in continuous which is composed of two winding stations and of two rewinding stations and extraction of the finished paper rolls, two gluing stations of the final edge, one cardboard core gluing group and one cardboard core positioning group into the properly winding stations.
A rewinder built according to this invention provides a certain number of advantages. Possibility of rewind (always in continuous, without the paper never stops) paper rolls having a minimum diameter of at least 80mm up to the max diameter of at least 500mm and more, setting up the wished roll diameter. Possibility to use any cardboard core from the minimum diameter of at least 25mm up to the max diameter of 80mm and more, only by setting up the cardboard core diameter on the control panel. Possibility to use only cardboard cores or only steel or aluminium winding mandrels without cardboard cores. All this, obtained by only one rewinder machine, is very helpful because it converts paper in products having the maximum quality and at the same time is very versatile in the changing of the paper rolls sizes and the cores.
The invention will be now described using some examples with reference to drawings as follows: The drawing, Fig.1/1, shows the lateral view of one possible configuration of the versatile start & stop rewinder machine in continuous.
In the drawing, Fig.1/1, we can see the two winding stations, winding station B, winding station C, extraction station D and extraction station E. The winding station B is composed of one and only lower fix roll F, of two upper clamps rolls P that move up in function of the growth of the paper roll diameter (log). The winding station C is exactly the same as the winding station B and is composed of the lower roll G and of two upper clamps L which move up in function of the growth of the paper roll diameter (log). The log are created into the winding station B and C. For example: in the winding station B the roll (log) has joined the wished size and at this point the comb H comes out from the seat extracts on the lower winding roll F and instantly pushes the paper towards the lower winding roll G. This very fast boost causes the breaking of the paper (always at operating speed) in the perforation point and in the same time at an air compressed blow given off the comb's points H push with strength the broken paper edge towards the lower winding roll G, this one has got on its external surface a lot of holes which suck the paper and direct it under the core M. The core M, being previously glued from the cardboard core gluing group T, allows the gluing of the paper to the core and starts the creation of the following paper roll. The same procedure is done when the finished roll is in the winding station C. At this point the comb I comes out from the site obtained on the lower winding roll G and at the same time push the paper towards the lower winding roll B. This very fast boost cause the breaking of the paper (always at operating speed) in the perforation point and at the same time at a air compressed blow given off the points of the comb F, which on its external surface has got a lot of holes that suck the paper and towards it under the core. The core , being previously glued from the cardboard core gluing group T, allows that the paper is glued to the core and begins the following paper roll creation.
When the paper roll join the wished diameter it starts the winding exchange phase between the two winding station B and C or vice versa. This phase is always keeping the operating paper speed and at least constant. When the paper roll (log) is finished on the winding station B and the roll (log) winding begins on the winding station C, the winding station B can even stops, the paper roll is transferred into the final edge rewinding station and extraction D and the gluing group Q put the necessary glue to glue the final edge in all its length. Once the final edge is wound the paper roll (log) is extracted from the properly extractor D to make way at the following paper roll (log). Same procedure for the paper roll (log) that has reached the wished diameter into the winding station C and has began the roll (log) winding on the winding station B, the winding station C stops, the paper roll is transferred, by means of the arm S while it positions the following core in the point χ, into the final edge rewinding and extraction E and the gluing group R put the necessary glue to glue the final edge in all its length. Once the final edge is wound the paper roll (log) is extracted from the properly extractor E to make way at the following paper roll (log).