JP5007088B2 - Product sheet separation device in paper dust / paper piece removal device - Google Patents

Description

  The present invention relates to a product sheet that is supplied in a batch form in a removing device that removes paper dust, thread-like waste, paper pieces, and the like that are generated when punched and formed in a cardboard paper or paperboard, etc. The present invention relates to a separating apparatus that separates and separates the sheets one by one.

An assembly box made of corrugated cardboard or paperboard is formed by punching out a developed shape of a product from rectangular corrugated cardboard or paperboard.
The punching is performed by a flat punching die in which a punching blade (straight blade, wave blade) is implanted in a base plate, or a cylindrical punching die in which a punching blade (straight blade, wave blade) is implanted in a semi-cylindrical plywood. However, if the same operation is repeated, the cutting edge of the punching blade implanted and fixed in the punching die is worn and becomes a flat surface. When punching with the worn punching blade, the product is punched by surface cutting, and paper dust and paper thread scraps are generated on the cut surface. Then, paper dust and paper thread scraps adhere to the outer peripheral edge of the product to be punched out (outside edge, hole edge, groove edge, etc. of the product) due to static electricity. In addition, even if the paper dust and paper thread-like waste are separated into the product and surrounding waste by a stripping device (dropping waste dropping) in the next step of the punching process, it remains attached to the outer peripheral edge of the product sheet. Become.

  By the way, paper dust and paper filaments adhering to the outer peripheral edge of the punched product significantly reduce the product value, and when the punched product sheet is put on an automatic box making machine, paper dust and paper filament scraps There is a problem that a trouble occurs due to entering a drive unit or the like. In particular, recently, mixing of paper dust, filamentous waste, paper pieces, and the like in cardboard cases has become a problem.

  Therefore, in the past, product sheets to be transported after stripping (for example, 1 batch: 25 sheets or 50 sheets stacked) are manually sandwiched between product sheets by pulling them apart one by one. Paper dust, thread waste, and paper pieces are dropped and stacked on a pallet, and the outer periphery of the stacked product is rubbed with a brush or mop to adhere to the outer periphery of the product sheet, paper thread Debris is removed.

Recently, an apparatus for removing paper dust, filamentous waste, paper pieces, and the like by manual operation using a machine has been developed and proposed (for example, see Patent Document 1).
In the apparatus described in Patent Document 1, corrugated paperboard (product sheets) supplied in a batch form is horizontally accommodated in a batch unit in a bucket that rotates endlessly, and the corrugated paperboard accommodated in the bucket is raised by rotating the bucket. During the process of changing the posture to the state and transporting in the standing state, the outer peripheral edge of the corrugated paperboard is rubbed with a brush, and the adhering corrugated paperboard is pulled apart one by one and the paper dust or the like sandwiched between the corrugated paperboard It is configured to remove a piece of paper.

  By the way, a gap forming means for forming a gap in which cutting waste adhering to each corrugated paperboard can fall between the corrugated paperboard standingly conveyed in batch units is provided at a passing position of the corrugated paperboard conveyed by the bucket. A portion protrudes at a position higher than the bottom of the bucket, and is rotated in the cardboard board transport direction in synchronization with the bucket transport speed, and the lower edge of the cardboard paperboard transported by the bucket is sequentially spaced at a predetermined interval. It is constituted by a rotating body that transfers each corrugated paperboard while locking and forming a gap between the corrugated paperboard.

With the above configuration, each corrugated paperboard passes through the gap forming means, and is sequentially locked to the rotating body of the gap forming means and separated one by one so as to get over the rotating body. is there.
What is described as a preferred embodiment of the rotating body constituting the gap forming means is provided with a plurality of locking projections at a predetermined interval on the outer periphery, and one piece of corrugated paperboard between each locking projection. An endless belt to be locked and a pair of pulleys for driving and rotating the endless belt.

However, when the endless belt having a locking projection moves upward from the position below the horizontal movement surface of the bucket over the horizontal movement surface with respect to the corrugated paperboard accommodated in the bucket and conveyed horizontally, Since the lower edge of the corrugated cardboard is slidably contacted by the locking convex portion, there is a problem that the lower edge of the corrugated cardboard is damaged or curled. In addition, depending on the pitch of the locking projections, two or more (multiple sheets) may be locked between the locking projections, which causes a problem in the stability of reliably separating the corrugated board one by one. .
Further, since the latching convex part of the endless belt is slidably contacted with the lower edge of the corrugated paperboard, the latching convex part is worn, and if the degree of wear is large, the latching one by one can also be latched. Has the problem of becoming unstable.

In addition, the structure which provided the guide part in the passage position of the bucket is described in patent document 1 as the conventional structure of the chip piece removal apparatus. The guide portion has an inclined portion that gradually inclines in the upward direction from the upstream side, and a step portion that drops the corrugated paperboard at the downstream end. As a result, the corrugated paperboard conveyed by the bucket is guided away from the bottom portion of the bucket by being guided by the inclined portion of the guide portion, and the corrugated paperboard conveyed to the terminal end portion of the guide portion is one sheet on the bottom portion of the bucket from the step portion. They are dropped one by one and the chips are dropped by the impact at the time of dropping.
However, this has the inconvenience that the lower edge of the corrugated paperboard collides with the bottom of the bucket, so that the lower edge of the corrugated paperboard is scratched or curled. Moreover, even if it falls from a level difference part one by one, there is a problem that a sufficient gap is not formed between the corrugated paperboards, and chip pieces in the middle of dropping are held between the corrugated paperboards. It is stated.

JP 2003-327327 A (pages 2 to 4, FIGS. 3, 4, and 6)

  The present invention has been made in view of the problems of the above-described conventional technology, and the problem is that the product sheet is reliably separated one by one without damaging or twisting the product sheet. It is another object of the present invention to provide a product sheet separating apparatus capable of reliably removing a piece of paper and the like.

In order to solve the above-mentioned problems, the product sheet separating apparatus of the present invention is a product in a paper dust / paper piece removing device for paper punching products that removes paper dust and paper pieces attached to product sheets punched from corrugated paper or paperboard. A sheet separating device,
Standing transport means for transporting punched product sheets in the form of a batch stacked in a batch stack, storing them in a batch storage frame in batch units, converting the posture to a standing state, and transporting them,
The lower end surface of the product sheet supported in the batch receiving frame of the upright conveying means is placed and conveyed on the first half of the upright conveying means, and the conveying surface on the start side in the conveying direction is the batch of the upright conveying means. It is located lower than the bottom surface of the storage frame, the transport surface on the end side in the transport direction is positioned above the bottom surface of the batch storage frame of the upright transport means, and has a predetermined height between the end of the transport surface and the bottom surface of the batch storage frame. Sheet conveying means arranged so as to generate a step, and
The conveying surface of the sheet conveying means is in contact with both end surfaces in the width direction of the batch sheet that is erected and conveyed by the rotation of the erection conveying means, on the side where the conveying surface of the erected conveying means protrudes upward from the bottom surface of the batch storage frame. Side pressing brush means for imparting contact resistance to the sheet;
An air blowing means arranged at a position above the line where the batch sheet is released from contact with the side-pressing brush means, whereby the product sheets are separated one by one;
Side air blowing means for blowing air to the lower back surface of the product sheet that is positioned one by one from the side surface pressing brush means and is separated one by one and falls into the batch storage frame of the standing conveying means;
(Claim 1).
The rotating speed of the upright conveying means and the sheet conveying means is controlled to rotate at the same speed.

The sheet conveying means is configured such that a plurality of belt conveyors are arranged in parallel with each other along the conveying direction of the product sheet so as to be transferred (Claim 2).
Specifically, a first connecting belt conveyor inclined at a position corresponding to a position at which the batch receiving frame on the starting end side of the upright conveying means shifts from a horizontal state to a vertical standing state, and a terminal side of the first connecting belt conveyor A step belt conveyor in which the conveying surface is positioned above the bottom surface of the batch storage frame in the conveying direction of the upright conveying means, and the conveying surface is arranged parallel to the step belt conveyor and the conveying surface of the batch receiving frame of the standing conveying means It is comprised by the 2nd connecting belt conveyor which has arrange | positioned in the conveyance direction ahead from the termination | terminus position of the said level | step difference belt conveyor, arrange | positions the bottom surface and the substantially same level or slightly higher rank (Claim 3).

As the first half passage position of the upright conveying means for disposing the sheet conveying means, the batch unit product sheet sent from the carry-in side is pushed and accommodated horizontally in the batch accommodating frame of the upright conveying means, and the horizontal state It is effective to move from the stand up to the standing state and move horizontally.
The sheet conveying means is arranged inside or outside the pair of upright conveying means arranged at a predetermined interval in the width direction (front-rear direction) of the product sheet to be conveyed, and according to the width of the product sheet It is configured to be movable and adjustable in the width direction.

Further, the side pressing brush means is spaced along the product sheet conveying direction on the side within the range in which the conveying surface of the step belt conveyor in the sheet conveying means protrudes upward from the bottom surface of the batch receiving frame of the standing conveying means. One or more are arranged (claim 4).
As a specific example of arranging a plurality of side presser brush means, for example, a first side presser brush means is provided on the side of the step belt conveyor at the start side, and a second side presser is provided on the end side of the step belt conveyor. The brush means is arranged (claim 5).
Further, the side presser brush means (first side presser brush means and second side presser brush means) are configured to be movable and adjustable in the width direction of the product sheet, so that even if the lateral width size is changed by changing the product sheet, Therefore, it is possible to respond reliably (claim 6 ).
Further, the sheet conveying means, be vertically adjusted with respect to the bottom surface of the batch accommodating frame upright transport means are and moved adjustably supported in the width direction according to the size of the product sheets (claim 7).

According to the above means, the product sheets that are accommodated in the batch accommodating frame of the standing conveying means and are conveyed while changing the posture from the horizontal state to the standing state are batch accommodated by the sheet conveying means arranged in parallel with the standing conveying means. The sheet is lifted from the bottom surface of the frame and supported by the conveying surface of the sheet conveying means, and conveyed while maintaining the state. Then, in the front stage of the horizontal conveyance, the side surface in the width direction of the product sheet passes while sliding in contact with the first side pressing brush means arranged on the side of the standing conveying means, and from the sliding contact with the first side pressing brush means. At the moment of release, the stacked product sheets are separated one by one. Then, the product sheet is effectively separated by air injection from the first air blowing means arranged on the front end line of the first side surface pressing brush means, and further, paper dust and paper pieces adhering to the product sheet are removed. Is done. Further, in the latter stage of the horizontal conveyance by the sheet conveying means, the laminated product sheets pass while sliding on the second side pressing brush means and are released from the sliding contact with the second side pressing brush means. The product sheets are separated one by one again. And the product sheet by the air injection from the second air blowing means arranged above the front end line of the second side pressing brush means and the air injection from the side air blowing means arranged on the lower side of the conveyed product sheet Is effectively performed, and paper dust and paper pieces adhering to the product sheet are further removed.
In addition, since the front end of the second side pressing brush means is located on the axial center line of the downstream pulley that winds and holds the step belt of the sheet conveying means, it is released from sliding contact with the second side pressing brush means. The product sheet to be separated is carried on the folded surface of the step belt (the surface wound around the downstream pulley) by the air injection of the second air blowing means and the side blow means, and the step belt is rotated. It is received by a connecting belt located at a lower position and is conveyed forward by the movement of the upright conveying means.

  In addition, the sheet conveying means composed of a plurality of belt conveyors has a conveying surface positioned slightly below (eg, 1 to 2 mm) below the bottom surface of the batch receiving frame of the upright conveying means, so that the product sheet is basically conveyed. It is received by the bottom surface of the batch receiving frame of the standing conveying means. However, since the end surface of the product sheet facing the bottom surface of the batch storage frame is not flush with the uneven surface, the uneven surface of the product sheet protruding downward from the bottom surface of the batch storage frame is By supporting, the product sheet can be stably conveyed. Therefore, the sheet conveying means can be adjusted in the vertical direction according to the product sheet, so that it can be dealt with with certainty.

  The product sheet separating apparatus in the paper dust / paper piece removing apparatus of the present invention can reliably separate one sheet at a time without causing scratches or wrinkles on the lower edge of the batch-conveyed product sheets. Therefore, the paper dust and paper pieces adhering to the product sheet, and the paper dust and paper pieces sandwiched between the product sheets can be reliably removed.

Embodiments of a product sheet separating apparatus in a paper dust / paper piece removing apparatus according to the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic view showing the overall configuration of a paper dust / paper piece removing device A. A punched product sheet a batched from a punching machine (not shown) is received and transferred into the device, and at the same time, the front end face of the product sheet A front end paper dust removing means A1 for removing paper dust adhering to the paper, a standing conveyance means A2 for converting the product sheet a carried out in a horizontal state from the front end paper dust removing means A1 into a standing state and conveying it, Separating means A3 that is arranged in the first half of the upright conveying means A2 and separates the conveyed product sheets one by one, and blows air against the separated punched product sheets to adhere to the front and back surfaces of the product sheets Air dusting means A4 for removing the paper dust and the product sheets separated one by one are aligned, and the paper dust removal for removing the paper dust and the like adhering to the left and right side surfaces and the upper side surface of the aligned and stacked product sheets. hand Constructed by stage A5 and final makeup means A6 which converts the product sheet from which paper dust and the like have been removed into a horizontally laminated state and carries it out, and removes paper dust from the left and right end faces and the front and rear end faces of the product sheet during the carrying out The front end paper dust removing means A1 to the final decorative means A6 are accommodated in the case 1. The product sheet separating apparatus according to the present invention comprises the separating means A3 and the air blowing means A4.

The front end paper dust removing means A1 aligns the both sides in the width direction and the rear end surface of the product sheet a batched from the punching machine with respect to the front side (front end surface) in the transport direction, and rubs the aligned front end surface with a brush. Then, the paper dust is removed and sent out to the conveying conveyor of the standing conveying means A2 located on the downstream side.
The structure is arranged between the belt conveyor 2, the end of the belt conveyor 2 and the start end side of the upright conveying means A2 arranged on the downstream side thereof, and a front stopper 3, a fixed brush 4, A vertically swinging brush 5, left and right alignment plates 6, 6 ′ disposed outside the belt conveyor 2 in the width direction and slidable in the width direction, and the rear side of the punched product sheet a fed onto the belt conveyor 2 And a rear alignment plate 7 for aligning by pressing.

  The product sheet in the batch state after the front end surface paper dust removing means A1 has removed the paper dust on the front end surface along the conveying direction is the paper dust / filamentous dust adhering to the remaining three circumferential surfaces (left and right end surfaces and rear end surface). , And the front and back surfaces of the sheet, paper dust, a piece of paper sandwiched between the sheets, the posture is changed to a standing state, and the sheet is conveyed. The conversion of the posture is performed by the upright conveying means A2 disposed close to the downstream side of the front end face paper dust removing means A1.

  The upright conveying means A2 includes a conveying conveyor 8 that conveys the product sheet a in a batch state carried out from the front end surface paper dust removing means A1 in a horizontal state, and a batch that is disposed close to the leading end of the conveying conveyor 8 in the conveying direction. It consists of a conveyor 9.

  The conveyor 8 has a plurality of narrow belt conveyors arranged at intervals in the width direction, and the belt conveyor located outside in the width direction moves in the width direction according to the size (lateral width) of the product sheet a. It is configured to be adjustable.

The batch transfer conveyor 9 has two chains 11, 11 'wound around a drive sprocket 10 and a driven sprocket 10', and a batch storage frame formed in a lateral U-shape on the outer peripheral surface of the chains 11, 11 '. 12, 12 ′ is configured to stand and be fixed at equal intervals in the circumferential direction with the open side facing outward. The batch storage frames 12 and 12 'fixed to the left and right chains 11 and 11' are arranged on the same line so as to receive and support the product sheet a conveyed by the left and right batch storage frames 12 and 12 '. It has become.
For this purpose, the batch transfer conveyor 9 is sandwiched between the belt conveyors in which the batch receiving frames 12 and 12 ′ are arranged in parallel with the transfer conveyor 8, and is arranged so that it can pass from below to above. .
Then, the batch storage frames 12 and 12 ′ fixed to the chains 11 and 11 ′ are stored so that the product sheet a is pushed and stored in the batch storage frames 12 and 12 ′ of the batch transfer conveyor 9 from the transfer conveyor 8. The frame member located on the rear side with respect to the rotation direction is configured to stop in a substantially horizontal state at a position slightly below the transport surface of the transport conveyor 8.
The chains 11 and 11 ′ to which the batch receiving frames 12 and 12 ′ are fixed are configured to be movable and adjustable in the width direction in accordance with the size (lateral width) of the product sheet a.

In the first half of the upright conveying means A2, separating means A3 for disposing the product sheets a accommodated in the batch accommodating frames 12 and 12 'upright and conveyed one by one is arranged.
The separating means A3 places and conveys the lower end surface of the product sheet supported in the batch housing frame disposed between the two chains 11, 11 ′ to which the batch housing frames 12, 12 ′ are fixed, The conveyance surface on the conveyance direction start end side is positioned below the bottom surface of the batch storage frame of the standing conveyance means, and the conveyance surface on the conveyance direction end side is positioned above the bottom surface of the batch storage frame of the vertical conveyance means so that the conveyance surface ends. The sheet conveying means 13, 13 ′ arranged so that a step of a predetermined height is generated between the bottom of the batch accommodating frame and the batch accommodating frame, and the batch conveying frame of the standing conveying means is the starting conveying surface of the sheet conveying means 13, 13 ′. The side of the position protruding obliquely above the bottom and the side of the end of the sheet conveying means are in contact with both end faces in the width direction of the batch sheet that is erected and conveyed by the rotation of the erection conveying means. Contact resistance to the sheet Product sheets that are released from the contact between the first side pressing brush means 14, 14 'and the second side pressing brush means 15, 15' to be applied and the second side pressing brush means 15, 15 'are separated one by one. Is dropped on the conveying surface of the sheet conveying means 13, 13 'positioned slightly flush with the bottom surface of the batch accommodating frame 12, 12' of the standing conveying means or slightly above the bottom surface of the batch accommodating frame 12, 12 '. And side air blowing means 18 for blowing air onto the lower back surface (side surface) of the product sheet.

  The sheet conveying means 13, 13 ′ includes first transfer belt conveyors 13 a, which are inclined to correspond to the positions where the batch receiving frames 12, 12 ′ on the starting end side of the standing conveying means A 2 shift from the horizontal state to the vertical standing state. 13a 'and a stepped belt conveyor in which the conveying surface is positioned above the bottom surface of the batch receiving frames 12, 12' from the terminal side of the first connecting belt conveyors 13a, 13a 'toward the conveying direction of the upright conveying means A2. 13b, 13b ′ and the stepped belt conveyors 13b, 13b ′ are arranged in parallel with the conveying surface of the batch storage frame 12, 12 ′ of the upright conveying means A2 so as to be substantially flush with or slightly above the bottom. Second transfer belt conveyors 13c and 13c ', which are positioned forward of the stepped belt conveyors 13b and 13b' in the transport direction, and the second belt conveyors 13b and 13b '. 'The third belt conveyor 13d for horizontal conveyance from the end position to the end position before the standing conveying means A2, 13d' transit belt conveyor 13c, 13c is constructed out with.

The first connecting belt conveyors 13a and 13a ′, the step belt conveyors 13b and 13b ′, the second connecting belt conveyors 13c and 13c ′, and the third belt conveyors 13d and 13d ′ are rotated by the upright conveying means A2. The rotation of the drive sprocket 10 is transmitted to the third belt conveyors 13d and 13d ′ by the power transmission mechanism 20 using the chain and the sprocket, and the rotation is transmitted to the second connecting belt conveyors 13c and 13c ′ via the belt, Further, the first connecting belt conveyors 13a and 13a ′ and the step belt conveyors 13b and 13b ′ are configured to rotate by the rotation of the second connecting belt conveyors 13c and 13c ′. The first connecting belt conveyors 13a and 13a ′ are not directly involved in separating and separating the batch product sheets one by one, but are accommodated in the batch accommodating frames 12 and 12 ′ of the upright conveying means A2. When the posture of the product sheet is changed from the horizontal state to the vertical standing state by the operation of the batch conveying conveyor 9, the end face of the product sheet comes into contact with the step end belt conveyors 13b and 13b ′ and is damaged. Prevents and contributes to stable standing conversion.
The sheet conveying means 13, 13 ′ is supported so as to be movable in the vertical direction with respect to the bottom surface (reference position) of the batch receiving frame 12, 12 ′ on the forward path side in the standing conveying means A2. The structure is provided with movable frames 19 and 19 'movable in a vertical direction with respect to a fixed frame (not shown) equipped with the upright conveying means A2, and the sheet conveying means 13 and 13 are provided on the movable frames 19 and 19'. 'And the movable frames 19, 19' are configured to be driven by a ball screw mechanism or an air cylinder. Thereby, the other part of the lower end surface of the product sheet a supported by the bottom surfaces of the batch receiving frames 12 and 12 ′ of the upright conveying means A2 can be received and conveyed by the sheet conveying means.

  With the above configuration, the height position of the conveying surface on the terminal side of the step belt conveyors 13b and 13b ′ and the height of the conveying surface of the second connecting belt conveyors 13c and 13c ′ (or the bottom surfaces of the batch storage frames 12 and 12 ′). A difference (drop) occurs, and the product sheets in batch form are pulled apart and separated one by one using this height difference.

The first side surface pressing brush means 14 and 14 'and the second side surface pressing brush means 15 and 15' have brushes implanted on a flat plate, and the end faces in the width direction of the product sheets batch-conveyed to the brush are in contact with each other. Thus, resistance is applied to the conveyance by the step belt conveyors 13b and 13b ′. Then, at the moment when the batch-conveyed product sheets are released from contact with the first side surface pressing brush means 14, 14 ', the batch-shaped product sheets are pulled apart one by one by the repulsive force of the brush.
The first side pressing brush means 14 and 14 'and the second side pressing brush means 15 and 15' are configured to be movable and adjustable in the width direction according to the size of the product sheet. The configuration is such that the frame to which the first side pressing brush means 14, 14 'and the second side pressing brush means 15, 15' are fixed is moved and adjusted in the width direction by a ball screw mechanism or the like.

  The air blowing means A4 blows and removes paper dust and paper pieces adhering to the front and back surfaces of the product sheet by blowing air to the separated product sheets a by the separation means A3 one by one from the batch state. . The configuration is such that the batch sheet is released from contact with the first side pressing brush means 14 and 14 'and the second side pressing brush means 15 and 15', whereby the product sheets are separated one by one on the line. The first air blowing means 16 and the second air blowing means 17 are arranged at the same position. The first air blowing means 16 and the second air blowing means 17 simultaneously remove the paper dust and paper pieces adhering to the product sheet a, and at the same time, the product sheet a has the first side pressing brush means 14, 14 'and The product is released from contact with the second side presser brush means 15, 15 'and assists the separation operation of the product sheet separated by the repulsive force of the brush.

Next, the separation operation of the product sheet a by the separation means A3 will be described with reference to FIGS.
First, as shown in FIG. 4, the batch-type product sheet a accommodated in the batch accommodating frames 12 and 12 ′ of the standing conveying means A <b> 2 is changed in posture from a horizontal state to a vertical standing state by the operation of the batch conveying conveyor 9. The At this time, the batch-shaped product sheet a supported by the bottom surfaces of the batch receiving frames 12 and 12 'is arranged inside the upright conveying means A2 and is connected to the first transfer of the sheet conveying means 13 and 13' rotating at the same speed. Transfer from the belt conveyors 13a and 13a 'to the step belt conveyors 13b and 13b', and in the vertical standing state, the product sheet is conveyed on the conveying surface of the step belt conveyors 13b and 13b 'protruding above the bottom surface of the batch receiving frames 12 and 12'. A lower end surface (front end surface at the time of horizontal carrying-in) is supported and conveyed toward the front.
When the conveying surface of the step belts 13b and 13b ′ supports and conveys the lower end surface of the product sheet a, the product sheet a is placed on the first side presser brush means 14 and 14 ′ disposed on the side of the upright conveying means A2. Since both end surfaces in the width direction are in contact with each other, a brake is applied to the conveyance, and the product sheet a is conveyed in a batch state. Then, at the moment when the product sheet conveyed in a batch state is released from the contact with the first side pressing brush means 14, 14 ', the product sheet is generated by the repulsive force of the brush of the first side pressing brush means 14, 14'. Are pulled apart one by one. Moreover, the air is blown downward from the first air blowing means 16 disposed above the front edge of the first side pressing brush means 14, 14 'from which the product sheets are separated one by one. Paper dust, paper pieces, etc. adhering to the front and back surfaces of the sheet a are blown off and removed.

  The product sheet a which has been batched again after passing through the first side pressing brush means 14 and 14 'when further conveyed forward by the batch conveying conveyor 9 and the sheet conveying means 13 and 13' of the upright conveying means A2. As shown in FIG. 5, the second side surface which is conveyed toward the end of the step belt conveyors 13b and 13b ′ and is arranged on the side of the upright conveying means A2 on the front side of the end of the step belt conveyors 13b and 13b ′. The presser brush means 15, 15 ′ are in contact with both end faces in the width direction of the product sheet. As a result, as in the case of the contact with the first side surface pressing brush means 14, 14 ', the brake is applied to the conveyance, and the product sheet a is conveyed in a batch state.

  At the moment when the batch-conveyed product sheets are released from contact with the second side pressing brush means 15, 15 ', the batch-shaped product sheets are pulled apart one by one by the repulsive force of the brush. Then, air is blown downward from the second air blowing means 17 disposed above the front edge of the second side pressing brush means 15, 15 'from which the product sheets are separated one by one, and further the product sheet a The air is blown out from the side air blowing means 18 arranged on the lower side surface in the height direction toward the inside in the width direction of the product sheet, so that the product sheet is surely batch sheet not only at the upper part in the height direction but also at the lower part. Pulled away from. Of course, the air blowing from the second air blowing means 16 and the side air blowing means 18 is not only separated and separated from the product sheet, but is also not removed by the air blowing by the first air blowing means in the previous stage and adheres to the product sheet. The remaining paper dust, paper pieces, etc. can be blown away.

The lower end surface of the product sheet a separated from the batch sheet by the repulsive force of the second side surface pressing brush means 15 and 15 'and the blowing of air from the second air blowing means 16 and the side air blowing means 18 is shown in FIG. As shown to a) and (b), it conveys ahead in the state mounted on the folding | circulation surrounding surface (surrounding surface wound by the pulley) of level | step difference belt conveyor 13b, 13b '. Then, the second transfer belt conveyors 13c and 13c ′ are conveyed so as to extend forward from the end of the step belt conveyors 13b and 13b ′ in the conveyance direction, and the conveyance surface is positioned below the conveyance surface of the step belt conveyors 13b and 13b ′. It moves on the surface and is conveyed to a paper dust removing step for removing paper dust and the like adhering to the end surfaces of the left and right side surfaces and the upper side surface of the next product sheet.
At this time, when the lower end surface of the product sheet a is supported by the second connecting belt conveyors 13c and 13c ′, the transfer from the step belt conveyors 13b and 13b ′ to the second connecting belt conveyors 13c and 13c ′. The impact at the time is small, and the lower end surface of the product sheet a can be prevented from being damaged or twisted.

The product sheet a in a batch state is separated twice by two by the upright conveying means A2, the separating means A3 and the air blowing means A4 to separate paper powder and paper pieces sandwiched between the product sheets. After that, the product sheet is again erected in a batch state, and the product sheet is removed by removing the paper dust and the like by cleaning the both side end faces and the upper end face in the width direction with the paper dust removing means A5 during the transport movement. Is converted into a horizontally laminated state and carried out, and paper powder is removed from both side end faces and front and rear end faces in the width direction of the product sheet in the middle of the carrying out, and is discharged.
Since the paper dust removing means A5 and the final makeup means A6 are not directly related to the present invention, detailed description thereof is omitted. For details of the paper dust removing means A5 and the final makeup means A6, see Japanese Patent Laid-Open No. 2005-161411 previously proposed by the applicant.

The present invention is not limited to the above-described embodiment, and can be changed without changing the gist of the invention.
(1) The side pressing brush means is disposed at a substantially central position in the height direction of the conveyed product sheet, but may be disposed at a plurality of locations along the height direction of the product sheet. The size and shape are arbitrary.
(2) Although the third belt conveyor is continuously arranged on the second connecting belt conveyor at the same level, the second connecting belt conveyor may be extended as it is and the third belt conveyor may be omitted.

The schematic front view which shows an example of implementation of the paper dust and paper piece removal apparatus incorporating the product sheet separation apparatus which concerns on this invention. The same part notch top view. It is an enlarged view of the principal part, (a) is a top view, (b) is the same front view. Explanatory drawing which shows the 1st stage product sheet separation operation | movement by a 1st side surface pressing brush means and a level | step difference belt conveyor. Explanatory drawing which shows the 2nd step product sheet separation operation | movement by a 2nd side surface pressing brush means and a level | step difference belt conveyor. Explanatory drawing which shows the transfer state from a level | step difference belt conveyor to a 2nd connecting belt conveyor.

Explanation of symbols

A ... Paper dust / paper piece removal device
A2: Standing conveyance means
A3: Separating means 12, 12 '... Batch storage frame 13, 13' ... Sheet conveying means 13a, 13a '... First connecting belt conveyors 13b, 13b' ... Step belt conveyors 13c, 13c '... Second connecting belt conveyors 14, 14 '... first side presser brush means 15, 15' ... second side presser brush means
16: First air blowing means
17 ... Second air blow means
18 ... side air blow means

Claims (7)

A product sheet separating device in a paper dust / paper piece removing device for paper dust, paper punching product that removes a piece of paper adhering to a product sheet punched from corrugated paper or paperboard,
Standing transport means for transporting punched product sheets in the form of a batch stacked in a batch stack, storing them in a batch storage frame in batch units, converting the posture to a standing state, and transporting them,
The lower end surface of the product sheet supported in the batch receiving frame of the upright conveying means is placed and conveyed on the first half of the upright conveying means, and the conveying surface on the start side in the conveying direction is the batch of the upright conveying means. It is located lower than the bottom surface of the storage frame, the transport surface on the end side in the transport direction is positioned above the bottom surface of the batch storage frame of the upright transport means, and has a predetermined height between the end of the transport surface and the bottom surface of the batch storage frame. Sheet conveying means arranged so as to generate a step, and
The conveying surface of the sheet conveying means is in contact with both end surfaces in the width direction of the batch sheet that is erected and conveyed by the rotation of the erection conveying means, on the side where the conveying surface of the erected conveying means protrudes upward from the bottom surface of the batch storage frame. Side pressing brush means for imparting contact resistance to the sheet;
An air blowing means arranged at a position above the line where the batch sheet is released from contact with the side-pressing brush means, whereby the product sheets are separated one by one;
Side air blowing means for blowing air to the lower back surface of the product sheet that is positioned one by one from the side surface pressing brush means and is separated one by one and falls into the batch storage frame of the standing conveying means;
A product sheet separating device in a paper dust / paper piece removing device.   2. The paper dust / paper piece removal according to claim 1, wherein the sheet conveying means is configured such that a plurality of belt conveyors are arranged in parallel along a conveying direction of the product sheet so as to be transferred in parallel. Product sheet separating device in the apparatus.   A plurality of belt conveyors constituting the sheet conveying means, a first transfer belt conveyor inclined at a position corresponding to a position where the batch receiving frame on the starting end side of the standing conveying means shifts from a horizontal state to a vertical standing state, A step belt conveyor having a conveying surface positioned above the bottom surface of the batch receiving frame from the terminal end side of the first connecting belt conveyor toward the conveying direction of the upright conveying means, and a conveying surface arranged in parallel with the step belt conveyor And a second connecting belt conveyor which is disposed substantially above or slightly above the bottom surface of the batch storage frame of the upright conveying means and whose end side is positioned forward of the stepped belt conveyor in the conveying direction. 3. A product sheet separating apparatus in the paper dust / paper piece removing apparatus according to 2.   The side pressing brush means is spaced along the product sheet conveying direction on the side within the range in which the conveying surface of the step belt conveyor in the sheet conveying means protrudes upward from the bottom surface of the batch receiving frame of the standing conveying means. The product sheet separating apparatus in the paper dust / paper piece removing apparatus according to any one of claims 1 to 3, wherein a plurality of the sheets are arranged.   The side presser brush means includes a first side presser brush means arranged on the side of the starting end side of the step belt conveyor, and a second side presser brush means arranged on the side of the end side position of the step belt conveyor. The product sheet separating apparatus in the paper dust / paper piece removing apparatus according to claim 4. 6. The paper dust / paper piece removing device according to claim 1, wherein the side presser brush means is configured to be movable and adjustable in the width direction in accordance with the size of the product sheet. Product sheet separation device. It said sheet conveying means, the upper and lower adjustable relative to the frame, and any one of claims 1 to 6, characterized in that depending on the size of the product sheets are moved adjustably supported in the width direction Product sheet separation device for paper dust / paper piece removal device.

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