JPS63310443A - Structure of continuously stacking and carrying out sheet of paper - Google Patents

Abstract

PURPOSE:To prevent the breakage of the front end part of a sheet of paper, paper clogging, etc. by providing a stacking conveyor and a carry-out conveyor in the rotating track of comb-teeth type trays, restraining sheets of paper on the bottom part of the tray, and inserting the following sheets of paper into the lowermost side in order. CONSTITUTION:Timing rollers 90 provided on second conveyors 88 are rotated at equal or a little lower speed than the speed of the conveyor 88, to feed overlapped sheets of paper A to a stacking conveyor 11. Each of the trays 12 of a carry-out tray device 15 which is intermittently rotated centering around a main shaft 13 can be stopped in a position in which sheets of paper A can be stacked on the stacking conveyor 11. And, the front ends of sheets of paper A which are moved by the rotation of the stacking conveyor 11 are stopped at the bottom part 16 of the tray 12 while the following sheets of paper A are fed onto the stacking conveyor 11 in order, and the front end part of each of the following sheets of paper A is overlapped on the downside of the rear end part of a preceding sheet of paper A and inserted into the lowermost side to be stacked.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a structure for continuously stacking and discharging single sheets, and more specifically, the present invention relates to a structure for continuously stacking and discharging single sheets, and more specifically, sheets are fed in an overlapping state into trays stopped on a stacking conveyor. Continuous stacking and carrying out of sheets, characterized by having a structure in which leaf sheets are sequentially inserted into the bottom surface to be stacked, and the stacked sheets are transferred onto a carrying out conveyor by rotation of a tray. It's about structure.

[Prior art and its problems] Conventionally, it has been considered difficult with current technology to perform continuous automatic accumulation in the processing process of manufacturing Japanese paper with a paper weight of approximately 45 g or less into koban paper (sheet-shaped paper). The reason for this lies in the currently used drop and stack method, which causes trouble in aligning the filter paper, which is thought to be caused by the generation of bulge or adhesive force due to static electricity. Furthermore, a drawback of the dropping and accumulating method is the problem of paper landing due to air resistance during dropping. In the drop stacking structure, the paper is dropped and stacked by applying a throwing force starting from the trailing edge of the paper.
At this time, since the strength of the dropped paper is smaller than the air resistance, folds at the leading edge of the paper, folds in the lateral direction, paper jams, etc. occur. Moreover, with conventional stacking methods, stacking and unloading could not be performed continuously.

[Means for Solving the Problems] In view of the above problems, the present invention provides a driving roll that has an integral working width and is axially mounted on the main body, and a support rod that is bridged to the main body frame. Idle rolls are pivotally attached to the tips of a plurality of support arms having appropriate gaps in the width direction and extending toward the side opposite to the drive port, and a belt is suspended between the drive roll and each of the idle rolls. It consists of an integrated accumulation conveyor and an unloading tray device in which a tray having a U-shape in side view and a comb-teeth shape in plan view is fixed to a main shaft mounted on the main body via an arm, and a tray is fixed to the main shaft mounted on the main body via an arm. The stacking conveyor and a discharge conveyor having the same configuration as the stacking conveyor are positioned, and the sheets A fed onto the stacking conveyor are regulated at the bottom of the tray stopped at a predetermined position, and the subsequent sheets A are regulated. are sequentially inserted into the bottom surface so that they can be stacked, and then the sheets A stacked in the tray are transferred onto the conveyor by rotating the tray. The present invention is intended to provide a structure for continuously accumulating and discharging single sheets configured to be delivered.

[Example] Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

FIG. 1 is an overall layout diagram of an embodiment according to the present invention, which mainly includes a pivoting part of a winding base paper A, a tension detection part 1, a paper length cutting part 3, a web width cutting part 5, an overlap part 7, It is composed of an accumulating section 9 and the like.

First, to explain unwinding to the winding base paper, a plurality of winding base papers A, A, etc. are rotatably attached to a support shaft (not shown), and each support shaft is equipped with a brake for braking. Then, the tension of the unwinding base paper is detected by the tension detection roll 2, and a control device (not shown) is used to maintain an appropriate tension of the specified amount, and the winding base paper A is unwound.

For the purpose of cutting the material as described above (the unrolled roll sheets A, A, etc. are cut into multiple strips and will be referred to as web A in the following explanation),
A longitudinal cutting section 3 for the base paper A is provided, and the longitudinal cutting section 3 is constituted by opposed slitter knives 3, 3, which in no case cut the web A. It is configured to rotate at an appropriately faster speed than the moving speed.

FIG. 2 is a cross-sectional side view for explaining the lateral cutting section 5 of the web A, and the draw roll 51 that pulls out a plurality of webs A and supplies them to the lateral cutting section 5 has a cylindrical shape. The draw roll 51 is composed of a roll that rotates and is driven by a drive unit (not shown), and a roll (same (cylindrical)) that firmly holds the web A between the draw roll 51 and A nip roll 52 whose surface is rubber-wrapped is provided, and the nip roll 52 is used to hold the web A.
A plurality of spiral grooves 53 are provided on the left and right opposite sides of the center to prevent wrinkles from forming. Reference numeral 54 denotes a pair of feed rolls, and the feed rolls 54 are configured to lightly hold the web A in any case and feed it to the lateral cutting section 5 at an appropriately faster speed than the draw roll 51. .

As shown in FIG. 2, the rotary cutter 55, which constitutes the main part of the horizontal cutting section 5, is composed of a top knife 56 with a rotating blade and a bottom knife 57 with a fixed blade.The top knife 56 is cylindrical and rotatable. A suitable helical groove is provided on the circumferential surface of the top knife body 58, and the blade is configured to be installed in the groove so that the knife interval can be freely adjusted. Further, a plurality of grooves are formed on the circumferential surface of the top knife body 58, and appropriate springs 59 are placed in the grooves so that the radius of the spring 59 is exposed from the circumferential surface and the spring 59 is appropriately stretched. It is buried. The purpose of the spring 59 is to prevent the surface of the top knife body 58 from becoming under negative pressure due to centrifugal force when the top knife body 58 rotates at high speed. By cutting the web A, the web A is prevented from wrapping around the circumferential surface of the top knife body 58, and the top knife rotating near the tip of the cut web A faster than the web speed. The spring 59 that is wound around the knife body 58 is made to come into contact with the rough surface of the spring 59 to provide a strong vertical support to the surface of the web transfer table 61.

The bottom knife 57 is attached to a bottom knife body 60 disposed below the top knife body 58, and the distance between the bottom knife 57 and the top knife 56 can be adjusted. Further, a plurality of air nozzles 62 with their tips facing the web traveling direction are disposed at appropriate positions on the web passing table 61 provided in the web path of the bottom knife body 60, and air is jetted from the air nozzles 62. As a result, the surface of the web transfer table 61 is brought into a negative pressure state, and the web A is forcibly fed in the direction of the first conveyor 71 of the overlap section 7 for the next process. Adjusted by

The vertical bone roll 7 of the first conveyor 71 whose end of the web A) 1■ is rotating at an appropriately faster speed than the draw roll 51
At the same time, the tip of the web A is sandwiched between the tension rolls 73 which are opposed to each other from above and below.
The rotary cutter 55 is adjusted to the cutting position, and the tension roll 73 grips and strongly pulls the tip of the web A, simultaneously cutting in the lateral direction, thereby bringing each knife into metal contact. Moreover, it is configured so that sharp cutting can be performed without requiring the sharpness of the -1 cutting edge. The tension roll 73 is placed on a fixed rack gear (not shown) and moved to an appropriate position according to the cutting length using a handle provided at the end of the tension roll position moving gear shaft. The leaf-shaped web A (hereinafter referred to as sheet A) is held between the belts of the first conveyor 71, and the subsequent sheet A
It is conveyed in the direction of the vinyl rolls 74 while maintaining an appropriate interval therebetween.

The pinch roll 74 is composed of two cylindrical rolls arranged oppositely and is configured to be movable to an appropriate position.
The sheet A is firmly clamped and fed to the kicker roll section 75 at a speed of 71.

Next, the overlap portion 7 will be explained based on FIGS. 3, 4, 5, and 6. First, the kicker roll 75 has a speed that is approximately the same as the speed of the first conveyor 71 during normal rotation. Or, it is configured to rotate at a preferred speed, but it is configured to rotate at an appropriately faster speed than the first conveyor 71 at appropriate locations, and to rotate at a reduced speed in the spaces between each sheet A. , Figures 4 and 5, Figure 6
Although the figure shows the main parts of the drive mechanism of the kicker roll 75, an input shaft 76 is rotatably supported on the main body via a bearing (not shown), and is integrally molded with an input gear 77. The input shaft 76 inputs the power output from the deflation via an idler gear, and when the rotary cutter 55 rotates once, the cutter roll 75 also rotates once. -77
A revolving differential gear 78 meshes with the input shaft 76.
should rotate in the direction of the arrow.

The revolving differential gear 78 is rotatably attached to a proper position of a bracket 79 fixed to the kicker roll 75 via a pin 80, and furthermore, the revolving differential gear 78 is attached to the other end of an integrally molded arm rod. Via the shaft-mounted cam follower 81,
By moving the cam surface 82 so that the revolving differential gear 78 does not rotate, the kicker roll 75 is configured to rotate normally.

That is, as shown in FIG. 5, it rotates in the direction of the arrow,
When the cam follower 81 reaches the linear portion 83 of the cam surface 82, the cam follower 81 is rapidly pushed toward the center of the linear portion 83, so that it rotates faster than the rotation of the input shaft 76. Also, Figure 6 shows the Kitzker roll 75.
This is the position of the revolving differential gear at the time when the speed increases and the sheet A overlaps and the nipping ends, and the gap between the following sheets A is reached. The car roll 75 is configured to decelerate (the revolving differential gear 78 is configured to decelerate the cam follower 81 as it moves away from the center of the straight section 83. One end of the lower car roll 75 is connected to the input gear 77). The other end is rotatably supported by a needle bearing (not shown) inserted into the inner diameter hole of the roller, and a gear (not shown) is connected to rotate in synchronization with the upper roller roll, which is also rotatably supported. It is configured to be driven through the

The overlap roll has an upper overlap roll 84 with an arcuate recess 85 formed at an appropriate location on the circumference, and a plurality of claws 87.
The rolls 84 and 86 are configured to rotate synchronously so that the recess 85 and the pawl 87 coincide with each other during rotation.
Although the overlapping rolls 84 and 86 are configured to rotate once when the rotary cutter 55 rotates once, a deflation is provided in the drive section (not shown) to prevent the rolls from moving even while the device is being driven. The timing at which the recess 85 and the claw 87 are brought into alignment with respect to the speed of the sheet A can be adjusted. The aforementioned Kitzkar roll 7
The deflation gear No. 5 is also configured to perform the same function.

To explain the overlapping effect based on FIG. The following sheet A is inserted into the lower surface of the rear end of the preceding sheet A, lifted by the claw 87, by increasing the speed of the picker roll 75.

That is, before the succeeding sheet A is finished being nipped by the kicker roll 75, it is nipped by the upper and lower overlapping rolls 84 and 8.6, which are arranged vertically opposite to each other, and forms an overlapping shape.

At this time, the catch roll 89 of the second conveyor 88, which rotates at an appropriately slower speed than the first conveyor 71, firmly holds the sheet A from above and below via a belt, and the tip of the sheet A is held by the catch roll 89. Sheet A held between
The rear end portion is lifted by the pawl 87 of the lower overlap roll 86, and is configured to cooperate with the speed increase of the kicker roll 75 to eliminate interference (and quickly overlap the rolls). In addition, the pinch roll 74, the kicker roll 75, and the catch roll 89
It is configured such that it can be moved to a suitable position according to the length of the sheet A (it is configured to be moved by turning a handle of a gear meshed with a fixed rack gear (not shown).

Next, to explain the configuration of the stacking section 9, the second conveyor 88 described above is provided with a timing roll 90 that operates preferably to supply the sheets A to the stacking section 9. It is configured to rotate at the speed of the second conveyor 88, or at a slightly slower preferred speed, and to supply the overlapping sheets A to the stacking conveyor 11, but when the set number of stacks is reached, the above-mentioned kicker roll 75 is driven. The speed is increased by a revolving differential gear (not shown in detail) to release the overlap of sheet A, and the speed is decelerated to rotate the leading sheet A and the following sheet. The structure is such that the operation of creating an appropriate interval between the points A is performed by a variable cam, also not shown.

The stacking section 9, that is, the sheets A overlapped on the stacking conveyor 11 are configured to be fed to the second conveyor 88 via the timing roll 90.
As shown in the figure, a tray 12 of an unloading tray device 15 that rotates intermittently around a main shaft 13 collects sheets A on a conveyor l.
The sheet A is stopped at a position where it can be stacked on the stacking conveyor 11.
The leading end of the sheet A stops at the bottom 16 of the tray 12, and the succeeding sheets A are sequentially fed onto the accumulating conveyor 11, but the leading end overlaps the lower surface of the trailing end of the preceding sheet A. , therefore, the structure is such that they are sequentially inserted and accumulated on the bottom surface. (In the following explanation, it will be referred to as stacked paper A.) That is, when the stacked paper A on the stacking conveyor 11 reaches a set amount, the timing roll 90 described above decelerates to create an interval between stacked paper A and the following sheet A. At the same time, the tray 12(a) of the unloading tray device 15 stores the stacked paper A and moves upward, and the following tray 12(b) moves to the stacking conveyor 11 position and stops at a predetermined position. ing. Note that the unloading tray device 15 is configured to rotate in synchronization with the rotary cutter 55 via an index (not shown), and furthermore, when the set stacking amount is reached, it operates almost simultaneously with the timing roll 90 to unload the stacked paper A. It is configured to do the following.

In addition, in order to float the stacked paper A during stacking and reduce the frictional resistance of the following paper, air is ejected from a nozzle 20 disposed diagonally downward above the starting end of the stacking conveyor 11. This allows the paper to be stacked with the edges aligned in an orderly manner.This is more effective when a large amount of paper is stacked or when the paper is thin.

As shown in FIG. 8, the accumulating conveyor 11 has a drive roll 23 formed to have a working width and is rotatably mounted on a main body, and a tip roll 24 is supported by two support rods 25. The support arm 26 extends from the drive roll 23 and the tip roll 2.
A conveyor belt is suspended between the conveyors 1 and 4, and a plurality of conveyors having the above structure are arranged in a plurality of rows with appropriate gaps 27, 27, .

The carry-out tray device 15 has trays 12, 12, which are U-shaped in side view, fixed to the tips of a large number of arms 14, 14, which protrude from a main shaft 13, which is mounted on the main body. 12 rotates around a main shaft 13, and is configured to have a rotation locus that passes through the accumulating conveyor 11 section. That is, the tray 12 has a comb-like shape in plan view,
A large number of comb-shaped teeth 17, 17... are made to protrude from the bottom 16, and the comb-shaped teeth 17, 17... pass through the gap portions 27, 27... of the above-mentioned accumulation conveyor 11. , the stacked paper A is stored in a tray 12 and carried out by the stacking conveyor 11.Furthermore, the carrying-out tray device 15 is intermittently rotated synchronously by a clutch brake (not shown) attached to the timing roll 90. It is designed so that

The carry-out conveyor 18 has the same configuration as the stacking conveyor 11, and is disposed on the rotational downward trajectory of the carry-out tray device 15, and when the tray 12 stops at the carry-out conveyor 17 position, the stacked paper A in the tray 12 is removed. Unloading conveyor 1
The structure is such that the stacked paper A, which is carried out and vertically ribbed by the rotation of 8, is transferred to the next process.

The main part of the present invention is the stacking section, and it is preferable to explain the structure from the stacking section. However, in order to explain the flow of paper in the device, the explanation will be given in the order of paper loading and unloading. It also explains the processing steps in order: roll base paper, web, sheet paper, and stacked paper.

[Effects of the Invention] As described above, the present invention has an appropriate gap 27 in the working width direction via the drive roll 23 having an integral working width, which is axially mounted on the main body, and the support rod 25 bridged to the main body frame. Idle roll 2 is attached to the tip of a plurality of support arms 26 extending toward the opposite side of the driving roll.
4 is shaft-mounted, and the drive roll 23 and each idle roll 2
4.24...An integral accumulation conveyor 11 with a belt suspended between them, and an arm 14 attached to a main shaft 13 mounted on the main body.
A tray 12 having a U-shape in side view and a comb-teeth shape in plan view is inserted through the tray 12.
．． The stacking conveyor 11 and the carrying out conveyor 18 having the same structure as the stacking conveyor 11 are positioned within the rotation locus of the tray 12, and the stacking conveyor 11 and the carrying out conveyor 18 having the same structure as the stacking conveyor 11 are positioned within the rotation locus of the tray 12. Tray 1 with sheets A fed to it stopped at a predetermined position
The tray 1 is regulated by the bottom 16 of the tray 1, so that subsequent sheets A can be sequentially inserted and stacked on the bottom surface of the tray 1.
Unlike the conventional paper dropping method, the leading edge of the paper is By forcibly transporting paper with the belt of the stacking conveyor 11, which is placed at the bottom, there are no problems caused by static electricity, and it is now possible to automatically stack lightweight paper (such as calligraphy paper), which was previously considered difficult. Not only is this method possible, but it also has superior effects on workability, stability, precision, etc., compared to conventional methods, even in the case of heavy paper. Moreover, since the stacking conveyor 11 generates an appropriate tension in the introduced paper and transfers it, the paper is not subjected to air resistance (therefore, there are no corner folds at the leading edge of the paper, no center folds, no paper jams, etc.) Moreover, when an appropriate distance is created between the stacked sheets A stacked in the tray 12 on the stacking conveyor 11 and the following sheets A, the tray 12 rotates and the subsequent tray 12 also moves onto the stacking conveyor. ll, but at this time, the tray 12 containing the stacked paper A
When the sheets A reach the top, the stacked sheets A are aligned at the bottom 16 of the tray 12, and are continuously transferred onto the carry-out conveyor 18, even though it operates intermittently, so that when transferred to the next process. There is no disturbance in the stacked paper A (the mechanism for automatically stacking and discharging the paper that is supplied non-stop is easily configured, the equipment cost is extremely low, and the economic effect is large, etc.)
It has a truly remarkable effect.

[Brief explanation of the drawing]

FIG. 1 is an overall layout diagram of an embodiment of the present invention. FIG. 2 is a cross-sectional side view of the lateral cutting section. FIG. 3 is a cross-sectional side view of the overlap part. FIG. 4 is a perspective view of the kicker roll drive section. FIGS. 5 and 6 are plan views of the kicker roll drive section. FIG. 7 is a side view for explaining the accumulation section. FIG. 8 is a plan view for explaining the structure of the stacking section and the like. A... Sheet (rolling base paper, web, sheet, stacked paper) 11... Accumulating conveyor 12... Tray 13... Main shaft 14... Arm 15... Unloading tray device 16 ... Tray bottom 18 ... Unloading conveyor 23 ... Drive roll 24 ... Idle roll 25 ... Support rod 26 ... Support arm

Claims (1)

[Claims] A driving roll with an integral working width is axially mounted on the main body, and a plurality of support arms extending to the opposite side of the driving roll with appropriate gaps in the working width direction are connected via support rods bridged to the main body frame. an integrated accumulating conveyor in which floating rolls are pivoted and a belt is suspended between the drive roll and each floating roll;
It consists of an unloading tray device in which a tray having a U-shape in side view and a comb-teeth shape in plan view is fixed to a main shaft mounted on the main body through an arm, and the above-mentioned accumulation conveyor and the above-mentioned accumulation conveyor are attached within the rotation locus of the tray. A take-out conveyor having the same configuration as the conveyor is positioned, and the sheets A fed onto the accumulating conveyor are regulated at the bottom of the tray stopped at a predetermined position,
Subsequent sheets A are sequentially inserted into the bottom surface so that they can be stacked, and the sheets A stacked in the tray are further stacked.
A structure for continuously accumulating and discharging single sheets, which is constructed so that sheets can be transferred onto a discharging conveyor by rotation of a tray.