JP2008049229A - Paper dust removing apparatus for sheet product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently remove paper dust having entered deep parts of cut faces by preventing scattering of paper dust removed from the paper dust removing apparatus to surroundings. <P>SOLUTION: The paper dust removing apparatus is composed of a first paper dust removing mechanism 20, a second paper dust removing mechanism 30, and a suction mechanism. The first paper dust removing mechanism 20 is formed in such a manner that overlap parts 21e, 22e with a pair of brush rolls 21, 22 overlapped thereon reversibly rotate toward a rear side from a carrying passage side. The second paper dust removing mechanism 30 is formed of a vertically rotating endless striking belt 31 provided with a lot of striking pieces 31a on the whole periphery. Paper dust attached on sheet products is stricken out by the striking pieces 31a of the second paper dust removing mechanism 30, scraped with brush parts 21b, 22b of the first paper dust removing mechanism 20, removed being sandwiched at the same time between the overlap parts 21e, 22e, and sucked and collected by the suction mechanism. Thus, the paper dust can efficiently be removed without scattering to surroundings. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an apparatus for removing paper dust adhering to a sheet product traveling on a conveyance path.

Sheet products such as corrugated cardboard sheets are cut into a cutter during cutting of raw materials, and a large amount of chips called paper dust are generated from the cut surface.
In many cases, the paper dust remains in a state where it is not completely separated and is connected to the cut surface of the sheet product or attached to the outer surface of the sheet product.
For example, as shown in FIG. 6, in the case of a corrugated cardboard sheet S, it is composed of a flat front and back liner and a corrugated core sandwiched between them, which is parallel to the core corrugation (oblique in FIG. 6). When cutting in the front-rear direction, the core may be crushed by the pressing of the cutter, causing the corrugation to collapse and cutting in a folded state. C often remains with the cardboard sheet partially connected.

Such a sheet product to which paper dust adheres does not look good and has a low commercial value.
In particular, if this sheet product can be assembled in a box shape, such as a corrugated cardboard sheet, there is a risk of paper dust adhering to the food when it is assembled and stored. is there.

For this reason, generally, such paper dust is often manually removed by brushing on the outer surface of the sheet product, but it is troublesome and inefficient.
Moreover, since the paper dust removed from the sheet product is scattered around by the brushing, the working environment is bad, and there is a possibility that the paper product will adhere to the sheet product again.

Under such circumstances, as described in Patent Documents 1 to 3, a paper comprising a casing and a pair of rotating brush rolls arranged in parallel at a predetermined interval in the vertical direction facing the opening of the casing. A scraping mechanism for powder, a pinching mechanism for paper dust composed of a pair of endless belts, which are arranged between the pair of brush rolls and rotate toward the inside of the casing in a state in which the proximity surface is in contact, A paper dust removing device having a suction channel provided on the back side has been devised (see, for example, FIG. 4 of Patent Document 1).
JP 2003-117497 A Registered Utility Model No. 3085168 Registered Utility Model No. 3086036

When this paper dust removing device is applied to the cut surface of the sheet product, the paper dust is scraped from the sheet product by a scraping mechanism comprising a rotating brush roll.
The scraped paper dust is pinched by the contact surface of the belt of the paper dust pinching mechanism, drawn into the casing by the belt, and further the paper dust drawn into the casing is sucked through the suction channel of the casing. It is.
In this way, paper dust can be efficiently removed from the sheet product in a short time, regardless of manual work.
Further, since the removed paper dust is sucked to the outside through the suction channel of the casing, it is hardly scattered around and the working environment is also good.

  In this conventional paper dust removing device, there are a scraping mechanism comprising a brush roll that serves to scrape paper dust, and a sandwiching mechanism comprising a belt that serves to sandwich the scraped paper powder and draw it into the casing. It is formed at a position separated in the vertical direction.

  In this way, because the position where the paper dust is scraped away from the position where the scraped paper dust is sandwiched, even if a large paper dust such as a cardboard beard is scraped off, it falls due to its own weight, There is a case where the belt of the pinching mechanism cannot be pinched well, and the problem that paper dust is scattered around is not completely solved.

Further, since the scraping mechanism is composed only of a brush roll, when the sheet product is a composite sheet such as a corrugated cardboard sheet, the paper powder removal performance is insufficient.
That is, when there is a dent in the cut surface of the sheet product, it is difficult to remove the paper dust that has entered the back of the dent because the brush hair does not reach the back.
For example, in the case of corrugated cardboard sheets, the corrugated core cut surface sandwiched between flat front and back liners is in a position recessed from the cut surface of the front and back liners, so paper dust such as whiskers can easily enter into this, It is very difficult to remove such paper dust with a brush.

  In view of this, the first object of the present invention is to smoothly remove the paper dust without scattering it to the surroundings in the paper dust removing device for the sheet product. The second problem is to remove it well.

  In order to solve the first problem described above, in the present invention, a pair of brush rolls in which the paper dust removing mechanism is arranged in parallel in the transport direction so as to face the transport path, the brush portions on the proximity side overlap each other, The overlap portion is formed by rotating in the reverse direction so as to go from the conveyance path toward the back side.

If it does in this way, paper dust will be continuously pinched by an overlap part at the same time as it is scraped off by the brush part of a brush roll, and will be removed from a sheet product.
Thus, since the paper dust is sandwiched at almost the same position, the large beard-like paper dust can be reliably captured without dropping, and can be removed while reliably preventing scattering to the surroundings.
Here, the term “overlap” means a state in which the brush bristles constituting the brush portions of the pair of brush rolls overlap each other, and includes a state in which not only surface contact but also line contact is present.

  Specifically, the paper dust removing device of the sheet product is composed of a paper dust removing mechanism facing a conveyance path along which the sheet product having paper dust travels on the cut surface, and a suction mechanism. The brush parts of a pair of brush rolls arranged in parallel in the conveying direction of the conveying path are arranged so as to face the conveying path, and the adjacent sides of these brush parts are overlapped, and the overlapping part is from the conveying path to the back side. Each sheet product is formed by rotating in a reverse direction so that the sheet product moves toward the paper dust removing mechanism side, and the paper powder adhered to the sheet product is moved to a pair of paper dust removing mechanisms. While scraping with the brush portions that rotate in the reverse direction of the brush rolls, they are sandwiched by the overlap portions and sent out from the transport path to the back side, and the fed paper dust is sucked out by the suction mechanism.

  Here, the paper dust attached to the sheet product is attached not only to the surface of the paper product in a state of being completely separated from the sheet product, but also to the paper product in a state where a part thereof is connected to the sheet product. The thing which is doing is also included.

Further, in order to solve the above-mentioned second problem, in the present invention, the paper dust removing mechanism is formed from an endless tapping belt that rotates in the vertical direction and is provided with a number of tapping pieces on the entire circumference. The hitting pieces, which are sequentially fed by rotating the, are arranged so as to face the conveyance path.

  In this way, the knocked-out pieces of the hitting belt that are fed out sequentially are inserted between the sheet products and to the back of the cut surface, thereby continuously hitting the paper, and the paper dust caught in the back by this impact is removed. Even if it is difficult to remove with a brush, the sheet product is a corrugated cardboard sheet, and the paper powder is in the back of the core. Can be removed smoothly.

Specifically, the paper dust removing device of the sheet product is composed of a paper dust removing mechanism facing a conveyance path along which the sheet product having paper dust travels on the cut surface, and a suction mechanism. A large number of knockout pieces are formed from an endless hitting belt provided on the entire circumference, arranged so that the hitting pieces that are fed forward by the rotation of the hitting belt face the conveyance path, and the sheet product is cut with paper dust. It was decided to run the transport path toward the removal mechanism side, knock out the paper dust adhering to the sheet product with the hammering piece of the paper dust removal mechanism, and suck out the knocked-out paper dust with the suction mechanism. .

  In order to solve both the first problem and the second problem, a paper dust removing mechanism comprising the above-described brush roll and a paper dust removing mechanism comprising the above-described tapping belt are provided side by side, and the paper dust comprising the tapping belt. You may comprise the paper dust removal apparatus which has arrange | positioned the removal mechanism at least upstream of the paper dust removal mechanism which consists of a brush roll.

  In this way, the slap piece of the slap belt knocks out the paper dust sandwiched between the sheet products and at the back of the cut surface, and then the brush roll scrapes off the paper dust with the brush part, and the overlap part Therefore, the paper dust removal performance is further improved.

  Specifically, the paper dust removing device includes a first paper dust removing mechanism facing a conveyance path along which a sheet product having paper dust on the cut surface travels, and at least upstream of the first paper dust removing mechanism. The brush part of a pair of brush rolls, which is composed of a second paper dust removal mechanism facing the conveyance path and a suction mechanism, and in which the first paper dust removal mechanism is arranged in parallel in the conveyance direction of the conveyance path, It is arranged so that it faces, and the proximity side of these brush parts is overlapped, and the overlap part is formed by reverse rotation so that it goes from the conveyance path to the back side, and the second paper dust removing mechanism The sheet product is formed from an endless tapping belt that rotates in the up-down direction provided on the entire circumference, and is arranged so that the tapping piece that is fed forward by the rotation of the tapping belt faces the conveyance path. The cut surface is directed toward the paper dust removal mechanism. Then, the paper powder adhered to the sheet product is struck out by the squeezing piece of the second paper dust removing mechanism, and the pair of brush rolls of the first paper dust removing mechanism are rotated in reverse directions. While being scraped off, the paper is sandwiched by the overlap portion and sent out from the conveying path to the back side, and the paper powder sent out and sucked out is sucked out by the suction mechanism.

Furthermore, a paper dust raising mechanism facing the conveyance path is provided at least upstream of the paper dust removing mechanism, and the paper dust raising mechanism is formed from a brush roll. Or, place the brush part facing the conveyance path in a state parallel to the tapping belt, run the sheet product with the cut surface facing the paper dust removal mechanism, and run on the conveyance path, and the paper adhered to the sheet product Once the powder is woken up by the rotating brush to make it easier to remove the paper dust adhering to the sheet product, it is sent to the paper dust removal mechanism, further increasing the efficiency of paper dust removal. Can do.

  Furthermore, when the brush part of the brush roll is formed of brush hair obtained by adding abrasive grains to synthetic resin, the brush hair surface becomes rough due to the abrasive grains, so the scraping performance is improved and the brush hair is worn out. Since the abrasive grains are always exposed, the surface is always rough and the scraping performance is maintained.

The present invention, as described above, scrapes paper dust with a pair of brush rolls that are overlapped and rotated in parallel, and simultaneously sandwiches them at the same position and feeds them to the back side. Can be removed smoothly without splashing around.
In addition, paper dust is struck out with an endless tapping belt that rotates in the up and down direction with a large number of struck pieces, so paper dust that has entered the back of the cut surface of the sheet product must be removed efficiently. Can do.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the paper dust removing device 1 according to the embodiment is configured by corrugating cardboard sheets S (hereinafter, abbreviated as corrugated cardboard sheets S) as sheet products. It is installed opposite to both sides of a conveyance path R composed of a roller conveyor and a belt conveyor that run in the direction indicated by the arrows in FIG.
As shown in the drawing, the front side of the paper dust removing device 1 faces the conveyance path R, and when the cardboard sheet S travels while the paper dust removal device 1 on the conveyance path R faces, The cut surface comes into contact with a first paper dust removing mechanism 20, a second paper dust removing mechanism 30, and a paper dust raising mechanism 40, which will be described later, of the paper dust removing device 1. Paper dust adhering to the cut surface of S is removed.

An endless pressing belt B for pressing the corrugated cardboard sheet S from above is provided above the conveying path R at a position where the paper dust removing device 1 is opposed.
This endless pressing belt B is rotationally driven toward the downstream side of the conveying path R by a motor via a timing pulley.
At the time of the above paper dust removing operation, the corrugated cardboard sheet S is pressed from above by the pressing belt and is sandwiched between the conveying path R composed of a belt conveyor. S does not deviate from the course of the conveyance path R.

  As shown in FIGS. 3 to 5, each paper dust removing device 1 includes a casing 10 in which almost all of the facing side, that is, the front side facing the conveyance path R is opened to form an opening 11, A first paper dust removing mechanism 20 including a pair of brush rolls 21 and 22 and a pair of tapping belts 31 which are arranged symmetrically in order from the center of the opening 11 toward both sides in the transport direction at a position facing the opening 11. , 32, a paper dust raising mechanism 40 consisting of a pair of brush rolls 41, 42, and a suction mechanism V.

As shown in the figure, the back side of the casing 10 is almost entirely closed, and the lower part extends rearward to form a cylindrical suction channel 12, which is a suction fan (not shown). The suction force is applied to the inside of the casing 10.
Further, seal brushes 11a are attached to the upper and lower portions of the opening 11 of the casing 10, so that the airtightness inside the casing 10 is enhanced and the suction force is enhanced.
Thus, the suction mechanism V is configured by the inside of the casing 10, the suction flow path 12, and the suction fan.

A first motor 13 is fixed on the upper surface of the casing 10 via a mounting plate or the like so that the rotation shaft thereof is along the vertical direction of the casing 10. A pulley 13a is attached.
Further, a second motor 14 is fixed above the suction flow path 12 on the back surface of the casing 10 so that the rotation axis thereof is parallel to the transport direction. A timing pulley 14a is attached.

Each of the first paper dust removing mechanisms 20 of the opposing paper dust removing device 1 includes a pair of brush rolls 21 and 22 arranged in parallel in the transport direction.
More specifically, as shown in FIG. 3, the upper and lower ends of the shafts 21a and 22a of the brush rolls 21 and 22 are respectively attached to the upper and lower sides of the opening 11 of the casing 10 via set collars and are rotatably supported. Has been.
As shown in the drawing, in the state where the shafts 21a and 22a are perpendicular to the conveyance surface of the conveyance path R, the brush hairs bite into the adjacent sides of the brush portions 21b and 22b of the brush rolls 21 and 22 with each other. Thus, overlapping portions 21e and 22e are formed.
Here, as shown in the figure, the brush portions 21b and 22b are arranged so as to face the conveyance path R, and the brush portions 21b and 22b are brush hairs in which abrasive particles are contained in synthetic resin such as nylon. It is formed by.

  Further, spur gears 21c and 22c are attached to the upper ends of the shafts 21a and 22a of the brush rolls 21 and 22, respectively, so that they are engaged with each other, whereby the brush rolls 21 and 22 are configured to rotate reversely to each other. Has been.

  Further, a timing pulley 21 d is attached below the spur gear 21 c at the upper end of the shaft 21 a of the upstream brush roll 21, and the rotation of the timing pulley 21 d and the first motor 13 fixed to the casing 10. Between the timing pulley 13a attached to the shaft, an endless timing belt 16 is passed through an idler pulley 15 for applying tension and timing pulleys 41c and 42c described later.

Here, as indicated by the arrow in FIG. 5, the rotation shaft of the motor 13 rotates clockwise in the figure, so the timing belt 16 is driven clockwise in the figure, and the upstream brush roll 21 is The downstream brush roll 22 that rotates clockwise as indicated by an arrow in the drawing and meshes with the spur gear 21c of the brush roll 21 rotates counterclockwise as indicated by the arrow in the figure. .
Therefore, each of the overlapping portions 21e and 22e of the brush portions 21b and 22b rotates in the opposite direction so as to go from the conveyance path R to the back side of the casing 10.

Next, each of the second paper dust removing mechanisms 30 of the opposing paper dust removing device 1 includes a pair of endless tapping belts 31 and 32.
The tapping belts 31 and 32 are symmetrically arranged on the outer sides of the pair of brush rolls 21 and 22 constituting the first paper dust removing mechanism 20, respectively, and are tapped extending almost perpendicularly to the belt surface on the entire circumference. The lead-out pieces 31a and 32a are formed integrally from a synthetic resin such as thermoplastic polyurethane and have moderate elasticity.

The upper and lower ends of the endless tapping belts 31 and 32 are respectively supported by upper and lower shafts 33 and 34 via a pair of timing pulleys 31b and 32b, and both ends of the shafts 33 and 34 are on the opening 11 side of the casing 10 side. Both sides are rotatably supported by bearings.
A timing pulley 33 a is attached to one end of the upper shaft 33 protruding from the side of the casing 10, and an endless timing belt is interposed between the timing pulley 14 a of the second motor 14 fixed to the casing 10. 17 has been passed.

Here, as indicated by the arrow in FIG. 4, the rotation shaft of the second motor 14 rotates clockwise in the figure, so that the timing belt 17 is driven clockwise in the figure and the timing pulley 33a of the upper shaft 33 is driven. Rotates clockwise in the figure as shown by the arrow in FIG.
Accordingly, the tapping belts 31 and 32 rotate endlessly from the upper side of the opening 11 of the casing 10 toward the lower side on the front side facing the conveyance path R, and the tapping pieces 31a and 32a are moved upward. From the opening 11, the transport path R is faced while being fed forward from the bottom.
The hitting belts 31 and 32 may be rotated from the lower side to the upper side on the contrary.

Next, each of the paper dust raising mechanisms 40 of the opposing paper dust removing apparatus 1 is composed of a pair of brush rolls 41 and 42.
The brush rolls 41 and 42 are arranged symmetrically outside the pair of endless tapping belts 31 and 32 constituting the second paper dust removing mechanism 30, respectively, and the shaft 21 a of the first paper dust removing mechanism 20. The upper and lower ends of the shafts 41a and 42a extending in parallel with 22a are attached to the upper and lower sides of the opening 11 of the casing 10 via set collars and are rotatably supported.
The brush portions 41b and 42b of the brush rolls 41 and 42 are arranged so as to face the conveyance path R, and the brush portions 41b and 42b are formed by brush bristles containing abrasive grains in a synthetic resin such as nylon. Has been.

Further, timing pulleys 41c and 42c are attached to the upper ends of the shafts 41a and 42a, respectively, and are attached to the timing pulleys 41c and 42c and the rotation shaft of the first motor 13 fixed to the casing 10. An endless timing belt 16 is passed between the timing pulley 13a.
As described above, the timing belt 16 is further passed to the timing pulley 21d of the first paper dust removing mechanism 20 via the idler pulley 15 that applies tension.
As indicated by the arrows in FIG. 5, the rotation shaft of the motor 13 rotates clockwise in the figure, so that the timing belt 16 is driven clockwise in the figure, and accordingly, the brush rolls 41 and 42 are respectively shown in the figure. Since it rotates clockwise, the opening 11 side of the brush portions 41b and 42b rotates toward the downstream side of the transport path R.
In addition, you may rotate the opening 11 side of the brush parts 41b and 42b of the brush rolls 41 and 42 toward the upstream of the conveyance path R.

FIG. 6 shows details of the corrugated cardboard sheets S that are stacked and bundled to remove the paper dust C using the paper dust removing device 1.
As shown in the figure, the corrugated section of the corrugated cardboard sheet S is parallel to the center of the core, and the corrugation is broken by the pressing of the cutter at the time of cutting, so that the core is cut in a folded state. A lot of slender bearded paper powder C connected to the surface is popping out.
Although not shown, fine paper powder C is attached to the cut surface in addition to the beard-shaped paper powder C, and a large amount of the paper powder C also enters the recessed portion of the core.

  As shown in FIGS. 1 and 2, when the corrugated cardboard sheet S is traveled on the transport path R, the cut surfaces on both sides from which the beard-like paper dust C protrudes face both sides of the transport path R, It is made to oppose with the powder removal apparatus 1, respectively.

As shown by the arrows in FIGS. 1 and 2, the corrugated cardboard sheet S travels on the transport path R with its cut surface facing both sides of the transport path R, and the paper dust removing device 1 faces both sides of the transport path R. When it comes to the position, first, the brush portion 41b facing the conveyance path R of the upstream brush roll 41 of the paper dust raising mechanism 40 comes into contact with the cut surface, and the bevel-like paper is applied to the rotating brush portion 41b. Powder C is agitated and raised from the cut surface, and in some cases removed directly.
Further, the fine paper powder C adhering to the cut surface is directly scraped and removed.

When the corrugated cardboard sheet S moves further downstream, a number of hitting pieces 31a of the upstream hitting belt 31 of the second paper dust removing mechanism 30 facing the conveyance path R that is sequentially fed from the upper side to the lower side are successively formed. It abuts by continuously hitting the cut surface.
At this time, the hitting piece 31a extends substantially perpendicularly from the surface of the hitting belt 31 toward the conveyance path R side, and is therefore inserted between the stacked corrugated cardboard sheets S and the back of the cut surface.
Therefore, due to the elasticity of the hammering piece 31a inserted into the cut surface, the minute paper dust C sandwiched in the back of the cut surface is repelled, knocked out as if it was pulled, knocked down, and then the beard that entered the back Even such a large paper powder C is knocked out.

When the corrugated cardboard sheet S moves further downstream, the brush portions 21b and 22b facing the conveying path R of the pair of brush rolls 21 and 22 of the first paper dust removing mechanism 20 come into contact with the cut surface to cause paper dust. The fine paper powder C that has failed to be removed by the mechanism 40 or the second paper powder removing mechanism 30, or the beard-like paper powder C that has been struck and struck out from the cut surface is scraped off.
Then, the scraped paper dust C is sandwiched between overlap portions 21e and 22e that rotate in reverse from the conveying path R of the brush portions 21b and 22b toward the back, and is drawn into the casing 10 (sent out). ).

In this manner, since the paper dust C is scraped off and sandwiched at substantially the same position at the same time, the paper dust C can be reliably caught without being dropped, and scattering to the surroundings can be reliably prevented.
And since the structure for pinching only has the brush parts 21b and 22b overlapped, the structure is simple and the manufacturing cost can be reduced compared with the case where a pinching mechanism using a belt or the like is separately provided. it can.

  When the corrugated cardboard sheet S travels further downstream, the remaining paper dust is also discharged from the tapping belt 32 on the downstream side of the second paper dust removing mechanism 30 and the paper dust raising mechanism 40 in the same manner as described above. It is removed by the brush roll 42 on the downstream side.

The paper powder C removed from the cardboard sheet S is sucked into the casing 10 by a suction fan (not shown), and is sucked into the inside through the opening 11 and sucked through the suction flow path 12 on the back of the casing 10. Collected.
In this way, since the paper powder C is sucked and collected by the suction mechanism V, the working environment is good without being scattered around.

In this embodiment, the downstream tapping belt 32 of the second paper dust removing mechanism 30 and the downstream brush roll 42 of the paper dust raising mechanism 40 on the downstream side of the first paper dust removing mechanism 20 are Although it is provided in advance, it can be omitted as appropriate in consideration of cost-effectiveness.
For example, the first paper dust removing mechanism 20 comprising a pair of brush rolls 21 and 22 and the second paper dust removing comprising a tapping belt 31 on the upstream side of the transport path R from the first paper dust removing mechanism 20. You may comprise a paper dust removal apparatus from the mechanism 30 and the paper dust raising mechanism 40 which consists of the brush roll 41 of the upstream of the conveyance path R rather than this 2nd paper dust removal mechanism.

In the embodiment, the first paper dust removing mechanism 20 and the second paper dust removing mechanism 30 are housed in the same casing 10. It may be formed on the body.
When formed separately as described above, the first paper dust removing mechanism 20 and the second paper dust removing mechanism 30 can be used independently depending on the situation.
In addition, in this case, the second paper dust removing mechanism 30 is arranged on the upstream side of the conveying path R, and the first paper dust removing mechanism 20 is arranged on the conveying path. When placed on the downstream side of R, paper dust is struck by the tapping belt 31 and then scraped by the brush portions 21b and 22b of the brush rolls 21 and 22 and sandwiched by the overlap portions 21e and 22e. Efficiency is good.

In the embodiment, from the viewpoint of the efficiency of removing paper dust, the paper dust removing device 1 is used for a stack of corrugated cardboard sheets, but it is of course possible to use the corrugated cardboard sheet alone.
Furthermore, it is not limited to corrugated cardboard sheets, and can be used for removing paper dust from other sheet products.

  In the embodiment, the rotating shafts 21a, 22a, 41a, and 42a of the brush rolls 21, 22, 41, and 42 are perpendicular to the transport path R, and this state provides the best paper dust removal efficiency. Even if the rotating shafts 21a, 22a, 41a, 42a are inclined toward the upstream side or the downstream side of the transport path R, paper dust removal performance can be exhibited.

Further, the suction mechanism V can adopt other modes such as providing a suction box in the casing 10.
Even when the suction mechanism V is configured by the suction channel 12 and the suction fan, the suction channel 12 is not limited to the back surface of the casing 10 and may be provided on the side surface or the bottom surface.

Moreover, in embodiment, the structure which accommodates the paper dust removal mechanisms 20 and 30 etc. in the casing 10 is employ | adopted, and when it does in this way, the inside of the casing 10 will become airtight and the efficiency of blotting will be especially good, but it is not restricted to this. Alternatively, a configuration in which the paper dust removing mechanisms 20 and 30 are supported by the upper and lower support plates or the like without using the casing 10 may be employed.
And it is good also as providing the separate suction mechanism in the back surface, and sucking out the removed paper dust.

The front view which shows the installation state of the paper dust removal apparatus of one Embodiment of this invention View of the installed state of the paper dust removal device from above Front view of paper dust removal device Side view of paper dust removal device Enlarged perspective view of the paper dust removal mechanism of the paper dust removal device Perspective view of cardboard sheets stacked and bundled

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Paper dust removal apparatus 10 Casing 11 Opening 11a Seal brush 12 Suction flow path 13 1st motor 13a Timing pulley 14 Second motor 14a Timing pulley 15 Idler pulleys 16, 17 Timing belt 20 First paper dust removal mechanism 21, 22 Brush roll 21a, 22a Shaft 21b, 22b Brush part 21c, 22c Spur gear 21d Timing pulley 21e, 22e Overlap part 30 Second paper dust removing mechanism 31, 32 Tapping belt 31a, 32a Tapping piece 31b, 32b Timing pulley 33, 34 Shaft 33a Timing pulley 40 Paper dust raising mechanism 41, 42 Brush roll 41a, 42a Shaft 41b, 42b Brush portion 41c, 42c Timing pulley R Conveyance path B Presser belt S Stacked and bundled cardboard sheets (corrugated cardboard sheets) )
C Paper dust V Suction mechanism

Claims (5)

The paper product removing mechanism 20 facing the conveyance path R along which the sheet product S having the paper powder C on the cut surface travels, and the suction mechanism V,
The paper dust removing mechanism 20 is arranged so that the brush portions 21b, 22b of the pair of brush rolls 21, 22 arranged in parallel in the conveying direction of the conveying path R face the conveying path R, and further, the brush portions 21b, 22b The proximity side is overlapped, and the overlap portions 21e and 22e are formed by reversely rotating from the transport path R toward the back side,
The sheet product S is caused to travel on the conveying path R with its cut surface directed toward the paper dust removing mechanism 20, and the paper dust C adhered to the sheet product S is converted into a pair of brush rolls 21 of the paper dust removing mechanism 20. , 22 while being scraped off by the reversely rotating brush portions 21b, 22b, sandwiched by the overlap portions 21e, 22e, sent out from the conveying path R to the back side, and sucked out the delivered paper dust C by the suction mechanism V Product paper dust remover. It consists of a paper dust removing mechanism 30 facing the conveyance path R along which the sheet product S having the paper dust C on the cut surface travels, and a suction mechanism V.
The paper dust removing mechanism 30 is formed of an endless tapping belt 31 that rotates in a vertical direction and has a number of tapping pieces 31a provided on the entire circumference, and the tapping pieces 31a that are fed forward by the rotation of the tapping belt 31 are transported. Arranged to face R,
The sheet product S is caused to travel along the conveying path R with its cut surface directed toward the paper dust removing mechanism 30, and the paper dust C adhering to the sheet product S is ejected by the hammering piece 31 a of the paper dust removing mechanism 30. A device for removing paper dust from a sheet product that knocks out and sucks out the dusted paper dust C with the suction mechanism V. The first paper dust removing mechanism 20 facing the conveying path R along which the sheet product S having the paper dust C on the cut surface travels, and the conveying path R at least upstream from the first paper dust removing mechanism 20. Consists of a second paper dust removal mechanism 30 and a suction mechanism V,
The first paper dust removing mechanism 20 is disposed so that the brush portions 21b and 22b of the pair of brush rolls 21 and 22 arranged in parallel in the conveying direction of the conveying path R face the conveying path R, and further, the brush portions 21b. , 22b are overlapped, and the overlapping portions 21e, 22e are formed by reversely rotating from the transport path R toward the back side,
The second paper dust removing mechanism 30 is formed of an endless tapping belt 31 that rotates in a vertical direction and has a number of tapping pieces 31 a provided around the entire circumference, and the tapping pieces 31 a that are sequentially fed by the rotation of the tapping belt 31. Is arranged to face the conveyance path R,
The sheet product S is caused to travel along the conveyance path R with its cut surface directed toward the paper dust removing mechanism 20, 30 side, and the paper dust C adhering to the sheet product S is removed from the second paper dust removing mechanism 30. It knocks out with the knock-out piece 31a, is scraped by the reversely rotating brush portions 21b and 22b of the pair of brush rolls 21 and 22 of the first paper dust removing mechanism 20, and is sandwiched between the overlap portions 21e and 22e and conveyed. A paper dust removing device for a sheet product that is fed out from the path R to the back side, sucked out and sucked out by the suction mechanism V. A paper dust raising mechanism 40 facing the conveyance path R is further provided at least upstream from the paper dust removing mechanisms 20 and 30;
The paper dust raising mechanism 40 is formed of a brush roll 41, and the brush portion 41b of the paper dust raising mechanism 40 is parallel to the brush rolls 21 and 22 of the paper dust removing mechanism 20 or the tapping belt 31 of the paper dust removing mechanism 30. Arranged to face the transport path R,
The sheet product S is caused to travel along the conveying path R with its cut surface directed toward the paper dust removing mechanism 20, 30, and the paper powder C adhering to the sheet product S is caused by the rotating brush portion 41b. 3. A paper dust removing device for a sheet product according to any one of 3 above.   The paper of the sheet product according to any one of claims 1, 3, and 4, wherein the brush portions 21b, 22b, and 41b of the brush rolls 21, 22, and 41 are formed from brush bristles containing abrasive grains in a synthetic resin. Powder removal device.

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