BE1028723B1 - DEVICE FOR CUTTING A FIRST ROLL OF ADHESIVE FATHER FOR THE PRODUCTION OF A SERIES OF SECOND SON ROLLS - Google Patents

Abstract

The present invention relates to a device for cutting a first parent adhesive roll for the production of a series of second son rolls each having a width less than a width of the parent adhesive roll, the present invention also relates to a method of manufacturing a series of second son rolls from a first adhesive father roll and finally relates to a series of a second son roll obtained from a first adhesive father roll.

Description

DEVICE FOR CUTTING A FIRST ADHESIVE MASTER ROLL FOR THE PRODUCTION OF A SERIES OF SECOND SON ROLLS The present invention relates to a device for cutting a first adhesive parent roll for the production of a series of second son rolls having each a width less than A width of the parent adhesive roll.

The present invention also relates to a method of manufacturing a series of second son rolls from a first parent adhesive roll by implementing the cutting device according to the invention.

The present invention also relates to a series of second son rolls obtained from a first adhesive father roll by implementing said cutting device.

Such a cutting device makes it possible to cut a first parent adhesive roll in order to provide a series of second son rolls which find subsequent use in different types of applications and sectors of activity such as, for example, the medical environment, do-it-yourself, electronics, transport, building and constructions, consumer goods, packaging or even safety and signage.

Typically, a master adhesive roll has a roll width of up to several meters and must therefore be cut into son adhesive rolls (adhesive tape rolls) of a small width ranging for example from 0.7 cm to 10 cm for the different utilities mentioned above.

Indeed, such son rolls resulting from the cutting of a first parent roll can be used in different types of applications such as, for example, in signaling, for masking, for insulation, for fixing, for protection, for decoration, or for non-slip properties.

In addition, the son rolls when they are unwound provide tapes such as signaling tapes are very often used for road signs, during sporting events or even during cultural events. IO masking tapes find a great application during painting work in order to delimit the zones to be protected and which must not be painted. The insulation tapes can provide thermal or electrical insulation or even provide a seal against liquids or the surrounding atmosphere. Finally, non-slip tapes are particularly useful for entrance halls, stairs or other high-risk surfaces.

It appears that such wire rolls, finding their utility in a diversity of very varied applications and sectors of activity, have variable geometries in terms of thickness or even width but also in terms of structure and composition.

For example, the son rolls resulting from the cutting of a first parent roll can comprise a single adhesive face or two adhesive faces, and can thus comprise different types of adhesives, of which natural or synthetic rubbers, silicones, glues of vegetable origin, of animal origin or based on acrylics or acrylates. Depending on the applications, the adhesive rolls may or may not have a peelable “backing or lining” affixed to the face covered with adhesive which thus separates the different layers wound on the roll.

In addition, these wire rolls can also be made of different types of materials such as fiberglass, polyvinyl chloride, polypropylene, kraft, silicone kraft, paper, crepe paper, semi-crepe paper , canvas, foam (polyethylene, polyurethane, acrylic), cellulose acetate, silicone paper, crystal paper.

Thus, the cutting devices must be able to allow the cutting of a variety of first parent adhesive rolls of variable geometry, structure and composition in order to provide a series of son rolls which each have a width less than a width of the parent adhesive roll .

There is known from the prior art a device for cutting a first parent adhesive roll for the production of a series of second son rolls each having a width less than a width of the parent adhesive roll, the cutting device comprising: - A closed or semi-open cutting enclosure comprising a rotating arm coupled to a first motor, the arm extending in a longitudinal direction (I) in the cutting enclosure and is arranged to be rotated about a longitudinal axis (L) by the first motor and to receive the first roll, - at least one cutting blade coupled to a second motor, the at least one cutting blade being movable in the longitudinal direction (|), and extending in a direction transverse to the rotary arm and arranged to cut the first parent adhesive roll,

- A reservoir arranged to receive a solution comprising water and silicone, the container having an opening connected to a pipe comprising a nozzle for spraying the solution onto the at least one cutting blade.

Thus, when the cutting device is fed with the first parent adhesive roll and the latter is cut, a lot of waste is generated. It is easily understood that the waste generated during cutting will be all the more varied as the first parent adhesive rolls to be cut into a series of second son rolls are varied in terms of composition, materials, adhesives.

Among the waste generated during cutting, there are in particular solid particles of glue, dust, debris from the roller. This waste can be produced in large quantities and invade the cutting environment.

In order to overcome this drawback, cutting devices according to the prior art comprise a cutting enclosure making it possible to limit the spread of cutting waste. Generally, after the cutting cycle of the first parent roll, the operator opens the cutting enclosure and, thanks to a mobile suction system, sucks up the cutting waste which has accumulated in the bottom of the cutting enclosure.

In addition, during the cutting process, the first parent rolls being generally covered with an adhesive layer and the cutting blade tending to heat up, a solution comprising water and silicone is sprayed on the cutting blade so as to to cool the cutting blade and to prevent adhesive particles from sticking and accumulating on the cutting blade.

Unfortunately, the spraying of a liquid solution comprising water and silicone, as well as the cutting step, in addition to generating solid waste such as pieces or particles, also results in a mist of fine gaseous particles. and liquid droplets which may include volatile organic compounds, for example from the adhesive, creating a harmful working environment for the operator, in particular when the operator opens the cutting enclosure to suck up the cutting waste, the operator in particular needing a filter mask to carry out this cleaning step.

In addition, it is found that mist of fine goose particles or liquid droplets and cutting waste such as larger size particles or pieces may stick to the side edges of the series of second rollers during and after the cutting stage, which can lead to glue smears, waste and imperfections decreasing the quality, precision and reproducibility of the second rolls and ultimately the quality of the finished products.

There is therefore a real need to have a cutting device making it possible to produce a series of second child rolls from a first parent adhesive roll whose quality, precision and reproducibility are guaranteed over time, in particular during several cutting cycles, but also to have a cutting device capable of offering a safe working environment, in which maintenance is facilitated.

The object of the invention is to overcome the drawbacks of the state of the art by providing a device for cutting a first parent adhesive roll for the production of a series of second son rolls whose quality, precision and reproducibility are ensured over time, in particular during several cutting cycles, and which cutting device provides a safe working environment in which maintenance is facilitated for the operators.

To solve the aforementioned drawbacks, there is provided according to the present invention a device for cutting a first parent adhesive roll for the production of a series of second child rolls as indicated at the beginning, characterized in that it comprises a fixed suction system connected to at least one opening carried by a wall, the at least one opening being located above a horizontal plane passing through a highest point of the rotary arm in the cutting enclosure.

It appeared in a particularly surprising manner that providing a cutting device according to the present invention which comprises a fixed suction system, connected to at least one opening carried by a wall and in which said at least one opening is located above a horizontal plane passing through a highest point of the rotating arm in the cutting enclosure, makes it possible in a particularly advantageous manner to eliminate directly and continuously as much solid cutting waste as particles of glue, dust, or even larger waste such as pieces of cardboard or rolls, and this for any type of material from the first parent roll to be cut.

It also appeared that the cutting device according to the present invention makes it possible to directly and continuously eliminate the mist of fine gaseous particles, the liquid compounds such as droplets but also the harmful organic compounds which are produced during the spraying of the liquid solution on the cutting blade and during the cutting step as well as cutting waste particles.

Thus, the cutting device according to the present invention, by comprising a fixed suction system as indicated above, makes it possible in a particularly advantageous manner on the one hand to provide a safe working environment given that the solid particles, liquid particles , volatile particles, harmful organic compounds and other waste are evacuated from the cutting enclosure directly and continuously during the cutting process, providing users and operators with a healthy working environment in which maintenance is facilitated and on the other hand, these undesirable compounds being evacuated directly and continuously, to provide a series of second son rolls whose quality, precision and reproducibility is ensured over time, and this during several cutting cycles.

Finally, the fixed suction system of the cutting device according to the present invention also has the advantage of reducing the handling and cleaning steps, allowing faster production, of higher quality over time and in a working environment. secured.

The dependent claims refer to further advantageous embodiments.

In one embodiment of the cutting device according to the present invention, the at least one opening is located on an upper wall and/or on a front and/or back and/or side wall.

Indeed, the location of the at least one opening connected to the fixed suction system on an upper wall and/or on a frontal and/or dorsal and/or lateral wall advantageously makes it possible to optimize the spatial arrangement between the device cutting and the fixed suction system.

In one embodiment of the cutting device according to the present invention, the at least one cutting blade is coupled to a means of longitudinal movement in the longitudinal direction (1).

Indeed, the cutting blade being coupled to a means of longitudinal movement in the longitudinal direction (|) is mobile and can move in order to allow the production of the series of a second roller, of variable, different sizes and on measure.

In one embodiment of the cutting device according to the present invention, the rotary arm is connected to a support foot.

This has the advantage of ensuring better stability of the rotary arm.

In one embodiment of the cutting device according to the present invention, at least one opening door is located on a side and/or front and/or back and/or top wall of said cutting enclosure.

This has the advantage of allowing easy extraction of the series of second wire rolls and also allows easy access to all necessary manipulations by an operator or handler in the cutting enclosure.

In one embodiment of the cutting device according to the present invention, the at least one transverse direction of the at least one cutting blade has an angle of between 84° and 98°, preferably between 85° and 97°, favorably between 86° and 96° with respect to said longitudinal axis (L) of said rotary arm.

This has the advantage of providing an optimized angle between the at least one transverse direction of the at least one cutting blade and the longitudinal axis (L) of the rotary arm so as to provide the series of second rollers in which the second rolls each have two clear side edges, thus avoiding providing second rolls which could have parts protruding from the side edges.

In one embodiment of the cutting device according to the present invention, the first motor is located outside the cutting enclosure.

This has the advantage of providing easy access to the first engine during maintenance or repairs.

Other embodiments of the cutting device according to the present invention are indicated in the appended claims.

The present invention also relates to a method of manufacturing a series of second son rolls from a first parent adhesive roll by implementing the cutting device and comprising the steps of:

- reception of a first parent adhesive roller by the rotary arm, - rotation according to a first direction of rotation of the rotary arm by activation of the first motor, - at least one spraying of the solution on the at least one cutting blade, - a series of transverse cuttings of the first parent adhesive roll by the at least one cutting blade, - a series of displacements of the at least one cutting blade in the longitudinal direction (|), -a recovery of a series of second son rolls, the method according to the present invention is characterized in that it further comprises at least one suction of gaseous volatile particles, and/or solid particles and/or waste, and/or liquid particles of the solution, by the fixed suction system connected to the at least one opening carried by a wall, the at least one opening being located above a horizontal plane passing through the highest point of the rotary arm in the cutting enclosure.

Indeed, and in a particularly surprising way, it appeared that the presence of at least one suction by the fixed suction system has the advantage of eliminating directly and continuously, during the process of cutting the first roll, as much the volatile gaseous particles, than the solid particles and waste, than the liquid particles of the solution, this also making it possible to provide, on the one hand, a safe working environment for the operators and handlers in which the undesirable compounds are evacuated directly and continuously and on the other hand to provide a series of second wire rolls whose quality, precision and reproducibility is ensured over time, and this during several cutting cycles. The dependent claims refer to further advantageous embodiments.

In one embodiment of the manufacturing method according to the present invention, the series of displacements of the at least one cutting blade is a series of displacements according to a distance between 2 and 400 mm, preferably between 10 and 80 MM .

This has the advantage of being able to manufacture the series of second rolls having a predefined width, of variable, different and tailor-made sizes.

In one embodiment of the manufacturing method according to the present invention, the rotation of the arm is a rotation at a constant speed of between 5 and 85 rad/s, preferably between 20 and 60 rad/s, more preferably between 30 and 50rad/s.

In one embodiment of the manufacturing method according to the present invention, the rotation of the at least one cutting blade is a rotation better driven by contact with the first rotating roller or a rotation at a constant speed of between 2 and 85 rad/s, preferably between 20 and 60 rad/s, more preferably between 30 and 50 rad/s.

In one embodiment of the manufacturing method according to the present invention, the first direction of rotation of the arm is opposite to the second direction of rotation of the at least one cutting blade.

This has the advantage of providing straight cuts in order to produce second rolls which each have two straight side edges, thus avoiding providing second rolls which could have parts protruding from the side edges or even tears.

In one embodiment of the manufacturing method according to the present invention, the at least one spraying of the solution onto the at least one cutting blade is a spraying at a flow rate of between 0.001 and 0.2 L/min, preferably between 0.005 and 0.1 L/min, favorably between 0.01 and 0.07 L/min.

This advantageously makes it possible to reduce sticking between the cutting blade and the adhesive of the first roll.

In one embodiment of the manufacturing method according to the present invention, the at least one suction by the fixed suction system is suction at a suction rate of between 1 and 3000 m3/h, preferably between 10 and 2500 m3/h, favorably between 200 and 2000 m3/h.

This has the advantage of directly and continuously removing cutting waste, volatile gaseous particles, solid particles and waste, and liquid particles from the solution.

In one embodiment of the manufacturing method according to the present invention, the steps take place at a temperature of between 10 and 35°C, preferably between 15 and 30°C, advantageously between 20 and 25°C.

In one embodiment, the method according to the present invention further comprises a step of heating the first roller before the first roller is received by the rotary arm, the heating step is a step of heating to a temperature between 20 and 50°C, preferably between 25 and 40°C, favorably between 25 and 30°C.

In one embodiment of the manufacturing method according to the present invention, the first roll comprises a protective film and/or an adhesive chosen from the group comprising a masking adhesive, a VHB adhesive, an acrylic adhesive, an aluminized polyester adhesive, foam tape or any other adhesive compatible with the first roll.

Other embodiments of the method of manufacture according to the present invention are indicated in the appended claims.

The present invention also relates to a series of second son rolls obtained from a first adhesive father roll by implementing the cutting device according to the present invention and the manufacturing method according to the present invention, in which each roll of the series of second rollers has two side edges, the two side edges having an area of which less than 5% is covered by particles of electrostatically adhering cutting scrap and/or glue scrap.

Other embodiments of the series of second child rolls obtained from a first father roll according to the present invention are indicated in the appended claims.

Other characteristics, details and advantages of the invention will emerge from the description given below, without limitation and with reference to the appended drawing.

FIG. 1 represents a schematic view of a cutting device according to the present invention in which a first father roll is cut into a series of second son rolls.

As illustrated in Figure 1, the device 1 according to the present invention for the manufacture of a series of second son rolls 3 from a first parent adhesive roll 2 comprises a cutting enclosure 4 resting on support feet 16.

The cutting enclosure 4 comprises a rotary arm 5 extending in a longitudinal direction allowing it to accommodate the first roller 2. A first longitudinal end of the rotary arm 5 is coupled to a first motor 7 arranged to rotate the arm 5. A second longitudinal end of the rotary arm 5 is connected to a support foot 19 arranged to stabilize the rotary arm 5.

The first motor 7 is connected to a cover 6, itself solidly connected to a side face of the cutting enclosure 4 and makes it possible to support the first motor 7.

The cutting enclosure 4 also comprises at least one cutting blade 8 located in an axis making an angle of between 84° and 98°, preferably between 85° and 97°, favorably between 86° and 96° with respect to a longitudinal axis L of the rotary arm 5.

The at least one cutting blade 8 is coupled to a second motor 9 arranged to rotate the at least one cutting blade 8.

The device 1 according to the present invention and as illustrated in FIG. 1 also comprises a reservoir 10 comprising a solution comprising water and silicone, in the illustrated embodiment, the reservoir 10 is located in the enclosure of cutting 4 and allows, with the aid of an opening 11 and a tube 12, to spray the solution on the at least one cutting blade 8 so as to cool it in order to avoid sticking between the at least one blade 8 and the first roller 2. In another embodiment of the cutting device according to the present invention, the reservoir 10 can be located outside the cutting enclosure 4.

The fixed suction system 13 according to the present invention is connected to an opening 14 located on an upper wall 15 of the cutting enclosure 4. The cutting enclosure 4 comprises at least one opening door 17 allowing access to inside the enclosure 4 and allowing the second rolls 3 to be extracted.

Indeed, the device 1 according to the present invention and as illustrated in Figure 1, by comprising a fixed suction system 13 makes it possible to provide a working environment and more particularly a cutting enclosure 4 that is secure since the solid particles , liquid particles, volatile particles, harmful organic compounds and other waste are evacuated directly and continuously during the cutting process, and makes it possible to provide a series of second wire rolls 3 whose quality, precision and reproducibility is ensured during the cutting process. time, over several cutting cycles.

The cutting device 1 allows the implementation of the method according to the present invention. The steps of the process for manufacturing a series of second son rolls 3 from a first father roll 2 preferably take place at a temperature between 10 and 35° C., preferably between 15 and 30° C., advantageously between 20 and 25°C.

Firstly, the rotary arm 5 receives the first parent roll 2, which can be heated beforehand to a temperature of between 25 and 30° C., and which first parent roll 2 comprises a protective film and/or an adhesive chosen from the group comprising masking adhesive, VHB adhesive, acrylic adhesive, aluminized polyester adhesive, foam adhesive or any other adhesive compatible with the first roll.

An activation of the first motor 7 makes it possible to rotate the arm 5 according to a first direction of rotation at a constant speed of between 5 and 85 rad/s, preferably between 20 and 60 rad/s, more preferably between 30 and 50 rad/s.

Preferably, an activation of the second motor 9 allows the rotation of at least one cutting blade 8, the rotation of the at least one cutting blade 8 is in rotation freely driven by contact with the first roller 2, or the rotation of at least one cutting blade 8 is a rotation at a constant speed of between 2 and 85 rad/s, preferably between 20 and 60 rad/s, more preferably between 30 and 50 rad/s.

The rotation of the at least one cutting blade 8 in a direction of rotation opposite to the rotation of the rotary arm 5, which itself accommodates the first roller 2, allows a series of transverse cutting of the first roller 2.

In addition, the at least one cutting blade 8 is cooled using at least one spray of the solution comprising at least water and silcone at a flow rate of between 0.01 and 0.07 L/ min. The spraying makes it possible to reduce the presence of sticking between the cutting blade 8 and an adhesive surface of the first roll 2. In order to produce the series of second rolls 3, a series of displacements of at least one cutting blade 8 in the direction longitudinal | is carried out according to a distance comprised between 2 and 400 mm, preferably between 10 and 80 MM.

Finally, during the method according to the invention, and more particularly before, during and after the cutting step, the fixed suction system 13 connected to the opening 14 of the upper wall 15 makes it possible to suck, at a flow rate comprised favorably between 200 and 2000 m3/h, and to eliminate from the cutting chamber 4 all the volatile gaseous particles, and/or solid particles and/or waste, and/or liquid particles from the solution produced when cutting the first roll 2.

The series of second rolls 3 obtained from the first roll 2 are discharged from the cutting enclosure 4 through at least one opening door 17.

In a particularly advantageous manner according to the present invention, each second wire roll 3 produced has two side edges, the two side edges have a surface which comprises less than 5% of contamination such as cutting waste which can adhere electrostatically or even waste glue or adhesive from the first parent roll 2.

Examples.- Example 1.- Production of a series of second wire rolls, tapes, double-sided VHB adhesives in the presence of a spray of a solution on the cutting blade and in the presence of a fixed suction The steps of the process manufacturing of the series of second wire rolls, tapes, double-sided VHB adhesives described below were carried out at a temperature between 20 and 25°C.

Initially, a first double-sided VHB adhesive roll, with a width of 1500 mm, was previously heated to a temperature of 25°C before being received by IO ie orasrotative.

The rotary arm and the cutting blade were rotated at a constant speed of 37 rad/s. The direction of rotation of the rotary arm is opposite to the direction of rotation of the cutting blade.

The first double-sided VHB adhesive roll was then cut into a series of 13 double-sided VHB wire, tape, 46 mm wide rolls. To do this, a series of longitudinal movements of the cutting blade was carried out over a distance of 48 mm.

During the manufacturing process, the cutting blade was sprayed with a solution comprising 2% [v/v] silicone in water at a spray rate of 0.05 L/min.

During the manufacturing process, a suction rate of 2000 ms/h is applied using a fixed suction system connected to the cutting enclosure using an opening. The fixed suction flow makes it possible to considerably reduce cutting waste and the cloud of droplets produced during cutting and ensures that the series of wire rolls, ribbons, is of a very good quality, the very good quality being defined by the fact that each roll of the series of 13 wire rolls is characterized by two straight side edges having a surface of which less than 5% is covered by glue burrs and/or cutting waste and/or tears.

Example 2.- Production of a series of second wire rolls, tapes, acrylic adhesive Example 1 was reproduced but the first double-sided VHB adhesive roll was replaced by a first acrylic adhesive roll.

As in Example 1, the process steps for manufacturing the series of second wire rolls, tapes, acrylic adhesive described below were carried out at a temperature between 20 and 25°C.

First, a first acrylic adhesive roll, 1400 mm wide, was previously heated to a temperature of 25°C before being received by the rotating arm.

The rotary arm and the cutting blade were rotated at a constant speed of 37 rad/s. The direction of rotation of the rotary arm is opposite to the direction of rotation of the cutting blade.

said first geryl adhesive roll was then cut into a series of 21 acrylic adhesive rolls with a width of 15.75 mm.

During the manufacturing process, the cutting blade was sprayed with a solution comprising 2% [v/v] silicone in water at a spray rate of 0.05 L/min.

During the manufacturing process, a suction rate of 2000 m°3/h is applied using a fixed suction system connected to the cutting enclosure using an opening. The fixed suction flow makes it possible to considerably reduce cutting waste and the cloud of droplets produced during cutting and ensures that the series of wire rolls, ribbons, is of a very good quality, the very good quality being defined by the fact that each roll of the series of 21 son rolls is characterized by two straight side edges having a surface of which less than 5% is covered by glue burrs and/or cutting waste and/or tears.

Example 3.- Production of a series of second polyethylene rolls, tapes, adhesives Example 1 was reproduced but the first double-sided VHB adhesive roll was replaced by a first polyethylene adhesive roll.

As in Example 1, the process steps for manufacturing the series of second rolls, tapes, polyethylene adhesives described below were carried out at a temperature between 20 and 25°C.

First, a first polyethylene adhesive roll, 1500 mm wide, was preheated to a temperature of 25°C before being received by the rotating arm.

The rotary arm and the cutting blade were rotated at a constant speed of 37 rad/s. The direction of rotation of the rotary arm is opposite to the direction of rotation of the cutting blade.

Said first polyethylene adhesive roll was then cut into a series of 30 polyethylene adhesive rolls with a width of 50 mm.

During the manufacturing process, the cutting blade was sprayed with a solution comprising 2% (v/v) silicone in water at a spray rate of 0.05 L/min.

During the manufacturing process, a suction flow rate of 2000 m3/h is applied using a fixed suction system connected to the cutting enclosure using an opening.

The fixed suction flow makes it possible to considerably reduce cutting waste and the cloud of droplets produced during cutting and ensures that the series of wire rolls, ribbons, is of very good quality, the very good quality being defined by the fact that each roll of the series of 30 son rolls is characterized by two straight side edges having a surface of which less than 5% is covered by glue burrs and/or cutting waste and/or tears.

Example £.—Production of a series of second wire rolls, tapes, aluminum adhesives Example 1 was reproduced but the first double-sided VHB adhesive roll was replaced by a first aluminum adhesive roll.

As in example 1, the manufacturing process steps for the second series of aluminum wire rolls, tapes, adhesives described below were carried out at a temperature between 20 and 25°C.

Initially, a first aluminum adhesive roll, 1500 mm wide, was preheated to a temperature of 25°C before being received by the rotating arm.

The rotary arm and the cutting blade were rotated at a constant speed of 37 rad/s.

The direction of rotation of the rotary arm is opposite to the direction of rotation of the cutting blade.

Said first aluminum adhesive roll was then cut into a series of 30 polyethylene adhesive rolls with a width of 50 mm.

During the manufacturing process, the cutting blade was sprayed with a solution comprising 2% (v/v) silicone in water at a spray rate of 0.05 L/min.

During the manufacturing process, a suction flow rate of 2000 m3/h is applied using a fixed suction system connected to the cutting enclosure using an opening.

The fixed suction rate makes it possible to considerably reduce cutting waste and the cloud of droplets produced during cutting and ensures that the series of wire rolls, ribbons, is of a very good quality, the very good quality being defined by the fact that each roll of the series of 30 son rolls is characterized by two straight side edges having a surface of which less than 5% is covered by glue burrs and/or cutting waste and/or tears.

Comparative Example 1.- Production of a series of second wire rolls, tapes, double-sided VHB adhesives in the absence of a spray of a solution on the cutting blade and in the absence of a fixed suction The conditions were reproduced exactly of Example 1 but in the absence of a spray of the solution comprising 2%

(v/v} of silicone in water on the cutting lome, and in the absence of the fixed suction system.

In the absence of the spraying of the solution on the cutting blade and in the absence of a suction flow by the fixed suction system, 1 results in poor quality of the series of second rolls produced, the poor quality being defined in that each roll of the series of second rolls is characterized by two side edges having a surface of which more than 35% is covered by glue burrs and/or cutting waste and/or tears.

Comparative Example 2.- Production of a series of second tape rolls, double-sided VHB adhesives in the presence of a spray of a solution on the cutting blade and in the absence of a fixed suction The conditions of Example 1 in the presence of a spray of the solution comprising 2% [v/v] of silicone in water on the cutting blade, but in the absence of the fixed suction system.

In the absence of a suction flow by the fixed suction system, 1 results in a lower quality of the series of second rolls produced, the lower quality being defined by the fact that each roll of the series of second rolls is characterized by two side edges having a surface of which more than 10% is covered by glue burrs and/or cutting waste and/or tears.

It is understood that the present invention is in no way limited to the embodiments described above and that many modifications can be made thereto without departing from the scope of the appended claims.

Claims (19)

1. Device (1) for cutting a first parent adhesive roll (2) for the production of a series of second son rolls (3) each having a width less than a width of said parent adhesive roll (2), said device comprising: - A closed or semi-open cutting enclosure (4) comprising a rotating arm (5) coupled to a first motor (7), said arm (5) extending in a longitudinal direction (I) in said cutter (4) and is arranged to be rotated around a longitudinal axis (L) by said first motor (7) and to receive said first roller (2), - that at least a cutting blade (8) coupled to a second motor (9), said at least one cutting blade (8) being movable in said longitudinal direction (I), and extending in at least one direction transverse to said rotating arm (5) and arranged to cut off said first roll master adhesive (2), - A tank (10) arranged to receive a solution comprising water and s ilicone, said container having an opening (11) connected to a pipe (12) comprising a nozzle for spraying said solution onto said at least one cutting blade (8), characterized in that said device (1) comprises a system of fixed suction (13) connected to at least one opening (14) carried by a wall (15), said at least one opening (14) being located above a horizontal plane passing through a highest point of said arm rotating (5) in said cutting enclosure (4). 2. Device (1) for cutting according to claim BE2020/5740 1, wherein said at least one opening (14) is located on an upper wall and/or on a front and/or back and/or side wall. 3. Device (1) for cutting according to claim 1 or claim 2, wherein said at least one cutting blade (8) is coupled to a means of longitudinal movement in said longitudinal direction (I). 4. Device (1) for cutting according to any one of claims 1 to 3, wherein said rotary arm (5) is connected to a support foot (19). 5. Device (1) for cutting according to any one of claims 1 to 4, wherein at least one opening door (17) is located on a side wall and / or front and / or back and / or top of said cutting enclosure (4). 6. Device (1) for cutting according to any one of claims 1 to 5, wherein said at least one transverse direction of said at least one cutting blade (8) has an angle of between 84° and 98°, preferably between 85° and 97°, favorably between 86° and 96° with respect to said longitudinal axis (L) of said rotary arm (5). 7. Device (1) for cutting according to any one of claims 1 to 6, wherein said first motor (7) is located outside of said cutting enclosure (4). 8. A method of manufacturing a series of second son rolls (3) from a first parent adhesive roll (2) by implementing said cutting device according to any one of claims 1 to 7, said method comprising the steps of : - reception of a first parent adhesive roll (2) by said rotary BE2020/5740 arm (5), - rotation according to a first direction of rotation of said rotary arm (5) by activation of said first motor (7) , - at least one spray of said solution onto said at least one cutting blade (8), - a series of transverse cuttings of said first parent adhesive roll (2) by said at least one cutting blade (8), - a series displacement of said at least one cutting blade (8) in said longitudinal direction (1), - recovery of a series of second wire rollers (3), characterized in that said method further comprises at least one suction of gaseous volatile particles, and/or solid particles and/or waste, and/or liquid particles of said solution, by said fixed suction system (13) connected to said at least one opening (14) carried by a wall ( 15), said at least one opening (14) being located above a horizontal plane zontal passing through said highest point of said rotating arm (5) in said cutting enclosure (4). 9. A method of manufacturing a series of second rolls from a first roll according to claim 8, further comprising a rotation according to a second direction of rotation of said at least one cutting blade (8) by a activation of said second motor (9). 10. A method of manufacturing a series of second rolls from a first roll according to claim 8 or 9, wherein said one series of displacements of said at least one cutting blade (8) is a series of displacements according to a distance between 2 and 400 mm, BE2020/5740 preferably between 10 and 80 mm. 11. A method of manufacturing a series of second rolls from a first roll according to one of claims 8 to 10, wherein said rotation of said arm (5) is a rotation at a constant speed of between 5 and 85 rad/s, preferably between 20 and 60 rad/s, more preferably between 30 and 50 rad/s. 12. Method according to any one of claims 8 to 11, in which said rotation of said at least one cutting blade (8) is a rotation freely driven by contact with said first roller (2) in rotation or a rotation at a constant speed of between 2 and 85 rad/s, preferably between 20 and 60 rad/s, more preferably between 30 and 50 rad/s. 13. Method according to any one of claims 8 to 12, wherein said first direction of rotation of said arm (5) is opposite to said second direction of rotation of said at least one cutting blade (8). 14. Method according to any one of claims 8 to 13, wherein said at least one spray of said solution on said at least one cutting blade (8) is a spray at a rate of between 0.001 and 0.2 L / min, preferably between 0.005 and 0.1 L/min, favorably between 0.01 and 0.07 L/min. 15. Method according to any one of claims 8 to 14, wherein said at least one suction by said fixed suction system is suction at a suction rate of between 1 and 3000 m3/h, preferably between 10 and 2500 m3/h, favorably between 200 and 2000 m3/h. 16. Process according to any one of BE2020/5740 claims 8 to 15, wherein said steps take place at a temperature between 10 and 35°C, preferably between 15 and 30°C, favorably between 20 and 25°C. 17. A method according to any one of claims 8 to 16, further comprising a step of heating said first roller (2) before said first roller is received by said rotary arm (5), said heating step is a heating step at a temperature of between 20 and 50°C, preferably between 25 and 40°C, advantageously between 25 and 30°C. 18. Method according to any one of claims 8 to 17, in which said first roller (2) comprises a protective film and/or an adhesive chosen from the group comprising a masking adhesive, a VHB adhesive, an acrylic adhesive, an aluminized polyester adhesive, foam adhesive or any other adhesive compatible with the first roll. 19. Series of a second son roll obtained from a first adhesive father roll by implementing said cutting device according to any one of claims 1 to 7 or said manufacturing method according to any one of claims 8 to 18, wherein each roll of said series of second rolls has two side edges, said two side edges having an area less than 5% of which is covered by electrostatically adhering scrap particles and/or glue scraps .