JP2013204214A - Device for removing foreign object adhered on paper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for removing a foreign object adhered on paper which is capable of removing an adhered foreign object with a simple device because, if paper is delivered in a state where an extremely small foreign object such as felt fiber and the like is adhered on the surface of the paper when passing through a press part, printing failure and the like may occur.SOLUTION: A foreign object removal roll 4 is rotatably disposed at an upstream side of a slitter knife 2 of a winder device 1. An inclined pile woven fabric is wound on an outer peripheral surface of the foreign object removal roll 4. When paper S reaching the slitter knife 2 is made to travel while being in contact with the outer peripheral surface, a foreign object adhered on the surface of the paper S is scraped away and removed by the inclined pile.

Description

  The present invention relates to a paper foreign matter removing apparatus that removes foreign matters attached to the surface of a paper in the process of being manufactured by a paper machine.

  For example, in a long net paper machine, a paper part is sprayed and diffused on a traveling wire, and a wire part that is dewatered while traveling, a press part that is sandwiched by a press roll together with felt, and water is supplied. A dry part for drying the paper while pressing the paper against the surface of the dryer cylinder, a calender part for crushing with a calender roll to smooth the surface, a reel part for winding the produced paper on a machine reel, Is the main constituent. Depending on the type of paper to be made, a size press for applying a sizing agent is provided in the middle of the dry part.

  In the press part, as described above, the felt is adhered to the paper and squeezed, so that there is a risk that the hair is removed from the felt or a spilled foreign substance on the surface of the paper. In addition, these foreign substances may adhere firmly to the paper surface by being squeezed. Further, in the size press, there is a possibility that the size liquid scattered around when the size liquid is applied is solidified and becomes a foreign substance and adheres to the paper surface.

  Felt hair removal occurs immediately after the start of use of the felt, during high-pressure washing, or due to falling off of the worn felt fibers. In addition, when the size liquid is applied at the size press part, the size liquid scatters, and the solidified solid that adheres to the surrounding frame or carrier rope falls off the surface of the running paper. Adhere to.

  If paper with foreign matter such as felt fibers or sachets attached thereto is used for printing, these foreign matter transferred to the blanket of the printing press will cause white spots in printing and poor quality of the coating part. . On the other hand, since many of these foreign substances are small, some of them are overlooked or erroneously detected by a defect detector installed in the paper machine. In particular, when high quality printing is required in recent years, the conventional defect detector may not be able to cope with it sufficiently.

  For example, Patent Document 1 discloses a continuous cleaning device for a strip-shaped product that is an object to be processed by bringing the object to be processed into contact with and guiding the adhesive surface of an adhesive roll that maintains permanent adhesiveness.

  Patent Document 2 discloses a foreign matter removing device provided in a sheet carrying device for carrying a sheet, in which a brush is provided around a rotating body to provide a foreign matter removing member, and the brush carries a sheet carrying rotary body. A foreign matter removing device provided so as to be in contact with the surface is disclosed.

Japanese Examined Patent Publication No. 7-65266 JP 2004-256228 A

  The continuous cleaning device for a strip-shaped product disclosed in Patent Document 1 has a hot water supply to the adhesive roll in order to remove the impurities adhering to the adhesive surface and maintain the adhesiveness in order to permanently maintain the adhesiveness of the adhesive roll. A means for spraying water, a means for removing water from the sprayed hot water, and the like are required, and the number of parts is increased and the size is increased.

  Also, although hot water is sprayed onto the adhesive roll, it is inconvenient for the paper to absorb moisture when the material to be treated is paper. A continuous cleaning device cannot be used.

  On the other hand, in the foreign matter removing apparatus described in Patent Document 2, when removing foreign matter from the sheet surface with the sheet conveying rotating body, it is necessary to accommodate the removed foreign matter in a case or the like, which increases the size of the device. . In addition, since the foreign matter is scraped off from the rotating sheet conveying member with a brush, paper dust is removed when trying to remove the foreign matter from the surface of the paper that is unwound from the winding and runs continuously like a winder device. There is a risk that it will be generated, and this paper dust may cause a defect in printing or the like.

  SUMMARY OF THE INVENTION Accordingly, the present invention provides a paper adhered foreign matter removing device that can remove foreign matter adhered to a paper surface as much as possible without generating a paper dust with a simple structure without requiring a complicated structure or a large apparatus. It is an object.

  As a technical means for achieving the above object, the paper foreign matter removing apparatus according to the present invention is configured to remove foreign matter with the outer peripheral surface facing the running area of the paper when the produced paper is taken up or unwound. A roll is disposed, and an inclined pile fabric is wound around the outer peripheral surface of the foreign matter removing roll, and the paper is caused to travel while being in contact with the outer peripheral surface.

  The inclined pile fabric is a fabric in which innumerable short piles are inclined and protruded on the surface, and is applied to a brush for clothes and the like. The inclined pile fabric is wound to constitute the foreign matter removing roll. When the paper is run while contacting the foreign matter removing roll, the foreign matter attached to the surface of the paper is scraped off by the inclined pile and removed.

  According to a second aspect of the present invention, there is provided a paper foreign matter removing apparatus, wherein the foreign matter removing roll is disposed upstream of a slitter knife of a winder device.

  Since the foreign matter is removed from the surface of the manufactured paper, for example, it can be arranged on a reel part of a paper machine and passed through this foreign matter removal roll when winding the paper. It is designed to be installed in the device. In this case, the winding is disposed on the upstream side of the slitter knife that cuts into a small width.

  According to a third aspect of the present invention, there is provided a paper foreign matter removing apparatus in which the foreign matter removing roll is fixed.

  That is, the foreign matter removing roll is supported in a state in which the rotation is prevented.

  According to a fourth aspect of the present invention, there is provided a paper foreign matter removing apparatus, wherein the foreign matter removing roll is rotatable.

  If the foreign matter removing roll is supported so as to be rotatable, the foreign matter removing roll is rotated little by little as the paper in contact with it travels. Thereby, the part which removes a foreign material is changed by changing a contact part with paper, and the function which removes a foreign material is maintained reliably.

  According to a fifth aspect of the present invention, there is provided the paper foreign matter removing apparatus, wherein the foreign matter removing roll is rotated by a driving means.

  The contact portion is reliably changed by positively rotating the foreign matter removing roll by the driving means. The rotation direction may be either the forward direction or the reverse direction with respect to the paper traveling direction, and the rotation direction is selected according to the properties of the paper.

  According to the paper foreign matter removing apparatus according to the present invention, since the foreign matter attached to the surface is removed by contact when the paper travels, the attached foreign matter can be easily removed without requiring a complicated operation. . In addition, the foreign matter removing roll does not require a device for maintaining the adhesiveness, and the attached foreign matter removing device does not have a complicated structure and is not enlarged.

  In the paper foreign matter removing apparatus according to the second aspect of the present invention, the foreign matter is removed when the paper is shipped in a small width for shipping the paper. Products without foreign matter can be shipped.

  According to the paper foreign matter removing apparatus according to the third aspect of the present invention, the contact with the paper can be reliably maintained, and the foreign matter attached can be reliably removed.

  In addition, according to the paper foreign matter removing apparatus according to the fourth aspect of the present invention, the function of removing foreign matter can be suppressed as much as possible by moving the contact portion with the paper, and the foreign matter removing efficiency is maintained satisfactorily. Is done. If a scraping plate or the like is provided in contact with the foreign matter removing roll and the foreign matter transferred to the foreign matter removing roll is scraped off and removed by the scraping plate or the like, the foreign matter is always removed from the outer peripheral surface of the foreign matter removing roll. Is preferable.

  According to the paper foreign matter removing apparatus according to the fifth aspect of the present invention, the contact portion with the paper can be reliably moved, and the deterioration of the foreign matter removal function can be more reliably suppressed.

It is a front view which shows schematic structure at the time of installing the flame | frame of a winder apparatus in the paper foreign material removal apparatus which concerns on this invention. In the side view at the time of installing the paper adhesion foreign material removal apparatus concerning this invention in a winder device, the relation with the paper run area is shown. It is sectional drawing of the foreign material removal roll cut | disconnected along the AA line shown in FIG.

  Hereinafter, based on a preferred embodiment shown in the drawings, a paper foreign matter removing apparatus according to the present invention will be described in detail.

  FIG. 2 is a diagram for explaining the traveling area of the paper S in the winder device 1. The paper S is guided to the slitter knife 2 while being unwound from the winding R set in the unwinder. It is cut at a predetermined position so as to have a small width, and is guided by a pair of winder drums 3 to form a narrow winding r.

  On the upstream side of the slitter knife 2, a foreign matter removing roll 4 constituting the attached foreign matter removing device is installed. As shown in FIG. 3, an inclined pile fabric 4a is wound around the foreign matter removing roll 4, and the paper S is brought into contact with the inclined pile fabric 4a to travel. The direction of the inclined pile is a direction suitable for removing foreign matter adhering to the surface of the paper S.

  As shown in FIG. 1, the foreign matter removing roll 4 is stretched over a frame 1a of a winder device 1 and is rotatably supported via a bearing so that the foreign matter removing roll 4 rotates as the paper S in contact with it travels. It is. The paper S is guided by guide rolls 1b and 1c.

  The operation of the paper foreign matter removing apparatus according to the present invention configured as described above will be described below.

  The paper S produced by the paper machine is formed on the winding R. The take-up R has a large width in consideration of production efficiency and the like, and cannot be shipped as it is, and cannot be handled on the customer side. For this reason, it is provided to the winder device 1 and cut at a predetermined position in the width direction to form a small-width take-up r. The winding R provided to the winder device 1 is guided to the guide roll 1b and supplied to the slitter knife 2. Prior to being supplied to the slitter knife 2, the paper S travels in contact with the foreign matter removing roll 4. Since the inclined pile fabric 4a is wound around the outer peripheral surface of the foreign matter removing roll 4, the paper S scratches the surface of the inclined pile fabric 4a. At this time, the foreign matter adhering to the surface of the paper S is scraped off by the pile on the surface of the inclined pile fabric 4a, transferred to the inclined pile fabric 4a and removed.

  The transferred foreign matter is removed from the surface of the foreign matter removing roll 4 by hand, for example, when the winding R is replaced. Alternatively, a scraping plate or the like having an edge facing the outer peripheral surface of the foreign matter removing roll 4 is disposed so that the outer peripheral surface of the foreign matter removing roll 4 scratches the edge and scrapes the foreign matter from the outer peripheral surface. You can also

  Further, since the foreign matter removing roll 4 is supported rotatably, the foreign matter removing roll 4 rotates as the paper S travels. On the other hand, you may make it rotate this foreign material removal roll 4 with a drive device.

  When the foreign matter removing roll 4 is rotated by, for example, output rotation of an electric motor, the ratio between the traveling speed of the paper S and the peripheral speed of the foreign matter removing roll 4 can be easily adjusted. It is possible to easily set the most efficient ratio for removing the adhered foreign matter. In addition, it is possible to easily set whether the rotation direction of the foreign matter removing roll 4 is the forward direction or the reverse direction with respect to the traveling direction of the paper S.

  According to the paper foreign matter removing apparatus according to the present invention, the foreign matter attached to the surface is removed by running the paper in contact with the foreign matter removing roll, so that the foreign matter can be efficiently removed and is generated during printing or the like. This contributes to a reduction in printing defects.

S Paper R Winding r Small winding 1 Winder device
1a frame
1b, 1c Guide roll 2 Slitter knife 3 Winder drum 4 Foreign matter removal roll
4a Inclined pile fabric

Claims (5)

Place a foreign matter removal roll with the outer peripheral surface facing the paper travel area when winding or unwinding the manufactured paper,
An apparatus for removing adhered foreign matter on paper, wherein an inclined pile fabric is wound around the outer peripheral surface of the foreign matter removing roll, and the paper is caused to travel while being in contact with the outer peripheral surface.   The paper foreign matter removing apparatus according to claim 1, wherein the foreign matter removing roll is disposed upstream of a slitter knife of a winder device.   The paper foreign matter removing apparatus according to claim 1 or 2, wherein the foreign matter removing roll is fixed.   The paper foreign matter removing apparatus according to claim 1 or 2, wherein the foreign matter removing roll is rotatable.   The paper foreign matter removing apparatus according to claim 4, wherein the foreign matter removing roll is rotated by a driving unit.

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