JPH0688722B2 - Device for stacking leaves in a standing state - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for stacking continuously supplied leaves in an upright state, for example, to properly align a leaf having an adhesive portion for binding to a pole portion of a surface thereof. The present invention relates to a stacking device suitable for stacking upright.

2. Description of the Related Art In the case of forming a book block by quantitatively accumulating leaves one after another from thin flat long materials continuously supplied, a method of accumulating and aligning the leaves in an upright state is often adopted.

In particular, each leaf has an adhesive portion on one side, and when the leaf portions are adhered by the adhesive portion to form a book block, the leaf is stacked flat. Since it is difficult to align the ears by sliding the succeeding leaves, there is a problem of stacking failure and ears alignment failure. Therefore, a method of stacking and aligning the leaves in an upright state is adopted.

Problems to be Solved by the Invention Even when the above leaves are successively supplied and accumulated in an upright state, a leaf dance may occur at the time of supply,
The standing leaf is warped and interferes with the leaf to be supplied subsequently, which causes troubles such as defective integration and defective ear alignment. Especially when the leaf has an adhesive portion on one surface, the adhesiveness increases the above trouble.

The present invention provides an apparatus for accumulating leaves in an upright state, which effectively solves the above problems.

Means for Solving the Problems The present invention provides an apparatus for properly accumulating leaves in an upright state, and an accumulating means provided with a leaf holder for accumulating the leaves in the upright state, and the leaf. The holder is provided with leaf supply means for supplying leaves one after another from the upper opening of the holder, and each time the leaf is supplied by the leaf supply means, it projects to the back of each supply leaf and is supplied immediately below the front end of the leaf. It is configured to eliminate the above-mentioned problem by providing a leaf dodging means that forms an insertion space.

Further, the stacking means may be formed of an impeller provided with a large number of leaf holders that are open in the radial direction, and the leaf holders may be sequentially moved to a leaf supply position by intermittent rotation of the impeller. .

Further, the leaf supply means can be constituted by a vacuum foil that sucks and holds the leaf on its circumferential surface and supplies the leaf to the leaf holder by rotation.

The dodging means may be formed so that the base end thereof is a rotatably pivoted dowel claw, and the tip of the dowel claw is projected to the rear of the supply leaf during the rotation process.

The leaves that have been cut while feeding the thin thin material for working are sequentially supplied into the leaf holder of the accumulating means by the leaf supplying means and accumulated in a standing state. Whenever each leaf is supplied, the dodging means protrudes behind the leaf and regulates the rearmost leaf to prevent the leaf from falling (backward) or warping, and the leaf immediately below the front end of the leaf to be supplied. An enclosing space is formed, and the succeeding leaf is encased in the enclosing space without interfering with the preceding leaf to be in an upright state.

By repeating the above-described operation, the leaves to be supplied one after another are properly aligned and vertically assembled.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

The present invention is a leaf holder for accumulating leaves 41 in an upright state.
The accumulating means 1 provided with 11, the leaf supplying means 2 for supplying the leaf holder 11 with the leaves 41 one after another from the upper opening 12 of the holder 11, and the supply leaf 41 for each leaf supply by the leaf supplying means 2. It is provided with a leaf dodging means 3 which projects rearward and forms a leaf insertion space S immediately below the front end of the leaf to be supplied subsequently.

The stacking means 1 comprises an impeller 13 which is driven intermittently about a shaft 14. As a typical example, the leaf 41 has a strip-shaped or dot-shaped adhesive 43 on one or both poles, for example, the ears or the center of the leaf, as shown in FIG.

The impeller 13 has partitions 15 extending in the radial direction and arranged at equal intervals in the circular direction, and the leaf holders 11 that open in the radial direction are formed between the partitions 15. The leaf holder 11
Has between the partition bases a leaf upright support surface 16 which is at a right angle to each rotating partition.

The partition 15 is preferably formed by arranging flat, square or round bar members 17 protruding in the radial direction at intervals in the axial direction of the impeller 13.

The impeller 13 is intermittently driven in timing, the leaf holders 11 are sequentially moved to the leaf supply position, the fixed amount of the leaf 41 is supplied from the leaf supply means 2, and the stack block 42 is moved to the carry-out position. To do. Collection book block
As a means for taking out 42 from the leaf holder 11, a pusher 9 that drives endlessly is provided, and the leaf upright support surface 16 of the leaf holder 11 is provided while the pusher 9 is stopped while the accumulated book block 42 is in a substantially flat state. To the upper opening 12 and pushes the above-mentioned stacking book block 42 supported by the partition 15 to the outside to carry it out.

The leaf supply means 2 comprises, for example, a vacuum wheel 21 which sucks and holds a leaf 41 on its circumferential surface and supplies the leaf 41 to the leaf holder 11 by rotation.

The vacuum foil 21 has suction ports 22 arranged at equal intervals on its circumferential surface. Each suction port 22 communicates with a suction passage 24 extending in a radial direction from the shaft portion 23, and when the suction passage 24 rotates near the top dead center of the foil 21, the suction passage 24 communicates with a suction source to start leaf suction ( When the suction start point P ₁ ) rotates from the top dead center to the vicinity of the side dead center in the rotation direction, the suction source is cut off and the leaf suction is released (suction release point P ₂ ). That is, the suction port 22 is a foil
Retains leaf adsorption between 21 near the top dead center and near the side dead center.

The strip-shaped thin long member 4 is continuously fed toward the top dead center of the vacuum wheel 21 forming the leaf supply means 2, and is cut into a certain size by the cutter 5 during this time to form the leaves 41 one after another. . At the outlet of the cutter 5, each leaf 41 is sandwiched between the endless conveyor belt 6 and the vacuum foil 21 circumferential surface, and is transported around the same circumferential surface from near the top dead center to before the side dead center. Be served.
The endless conveyor belt 6 is in contact with the circumferential surface of the vacuum wheel 21 from before the top dead center to before the side dead center and runs at a constant speed and in the same direction as the foil 21, while holding the leaf 41 during the dead center. The leaf holder is opened near the upper opening 12 of the front side, and returns to the front side of the top dead center of the wheel 21 through the cutter outlet side.

The suction port 22 is a leaf 41 held by the conveyor belt 6.
The adsorption of the front end of the leaf is started near the top dead center of the vacuum wheel 21, and the adsorption of the leaf front end is continued even after the front end is released before the side dead center.
Adsorption is released in the vicinity of the side dead center reaching the leaf upright support surface 16 of 11 and insertion into the holder 11 is performed.

As described above, the leaf holder 11 is a pair of bar members facing each other.
It is formed by a partition 15 consisting of 17 and the above leaf
41 is sequentially accumulated by using the partition 15 on the rotation side as a backup material. In order to assist this stacking, a first air nozzle 7 having a jetting force which is always weaker than the leaf suction port 22 is provided toward the back surface of the stacking leaf, that is, the back surface of the rearmost leaf, and the nozzle 7 is placed above the leaf holder 11. It is arranged between the opening 12 and the leaf upright support surface 16. In other words, the leaves 41 which are arranged between the leaf open end of the conveyor belt 6 and the suction release point P ₂ of the suction port 22 and are successively inserted by the jetting force thereof.
Press the back of the to the back of the existing leaf.

Further, a downwardly directed second air nozzle 8 is provided toward the leaf insertion portion of the upper opening 12 of the leaf holder 11. The second air nozzle 8 constantly ejects air toward the rear surface of the rear end (the upper end when standing up in the leaf holder 11) of the leaves 41 sequentially inserted in the feeding direction, and is pushed to the stacking side by the dodging means 3. The leaf is urged toward the upright support surface 16 while pressing the leaf end toward the stacking side.

Thus, the above-mentioned dodging means 3 is formed by a dodging claw 31 whose base end is rotatably supported. The dowel claw 31 is arranged so that the tip of the dowel claw protrudes to the rear of the supply leaf during the rotation process, and the back face of the leaf inserted at the rear end at the time of the transition to the protrusion, preferably the vicinity of the rear end of the leaf back face is accumulated. It is pushed to the side to form a space S for receiving the subsequent leaf. Therefore, the dodge claw 31, that is, the dodge means 3, consequently prevents the leaf 41 inserted at the rearmost end from warping or falling toward the back side.

As a rotation driving means for the dodge claw 31, for example, the dodge claw 31 is pivotally supported on a shaft 34 of a rotating wheel 33 such as a sprocket or wheel, and the rotating wheel 33 is made of a conductor 35 such as a belt or a chain.
By driving with, the rotation of the dodge claw 31 is obtained.

As a specific example of the dodge claw 31, as shown in FIG. 3, a leaf regulating finger 36 extending from the base end portion to the upper side (leaf insertion start end side) in the projecting state is extended at the tip and the regulating finger 36 is rotated. In the process, the vacuum foil 21 is arranged so as to project outward from the circumferential surface. As a result, FIG.
As shown in D to D, as the wheel rotates from the top dead center side toward the bottom dead center direction, it gradually protrudes toward the back side of the leaf supplied at the end, and pushes the back side of the leaf 41 toward the stacking side to follow it. Space S to be inserted just below the front edge of the leaf to be supplied
Is formed. At this time, by providing the regulating finger 36 having the above-described shape at the tip of the dodge claw 31, the escape space 37 of the subsequent leaf is formed inside the regulating finger 36.

Although not shown, as another example of the dodging means 3, an eccentric cam wheel may be used in place of the dodge claw 31 and the eccentric portion may be used as the restricting portion. Further, as another example, an endless drive belt composed of a chain or a belt as indicated by reference numeral 35 is extended to the leaf insertion position and is rotated, and a large number of projections corresponding to the above-mentioned dodge claws are arranged at intervals on the surface of the endless drive belt. You may provide, and do the work of dodging the said leaf with this protrusion.

By repeating the above leaf insertion operation, a constant number of leaf 41 groups are stood up and accumulated in the stopped leaf holder 11 to form a book block 42. When each leaf 41 has an adhesive 43, each leaf 41 is adhered to each other to form a book block. This book block 42 is an impeller
It is carried to the carry-out position by the intermittent rotation of 13, and the empty leaf holder 11 that follows is moved to the carry-in position, and the carry-in operation is repeated again.

In the case where the leaf is erected and supported, if the front end of the leaf is supported by the support surface, it includes not only the upright support in the upright state but also the erected state in the inclined state.

The leaf formed by cutting the thin flat long material one after another by the above is carried into the bottomed leaf holder radially provided on the impeller by the leaf feeding means, that is, the vacuum foil, that is, the upper opening thereof. It is put into the upright support surface from and it is surely accumulated in the upright state. At this time, it is possible to dodge the rearmost leaf by the dodging means, that is, dodge claws, to secure a space for inserting the leaf just below the front end of the succeeding leaf, and to properly insert the leaf, gather upright, and align the ears. it can. Therefore, the operation of supplying the leaves one by one one after another and accumulating them in a standing state, and thereby forming the fixed quantity block is properly performed without causing accumulation failure or ear alignment failure. Particularly, when each leaf has an adhesive portion and a book block is formed by the adhesive portion, it can be carried out very suitably as an upright collecting means. That is, the accumulation trouble due to the adhesive portion is surely eliminated.

[Brief description of drawings]

FIG. 1 is an overall side view of an apparatus for accumulating leaves in an upright state showing an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a plan view of a leaf suction portion, and FIGS. Side view of the main part of the leaf insertion part, which explains the state step by step,
FIG. 4 is a plan view illustrating a leaf. 1 …… Leaf collection means, 11 …… Leaf holder, 12 ……
Top opening, 13 …… impeller, 15 …… partitioner, 16 …… leaf upright support surface, 2 …… leaf supply means, 21 …… vacuum foil, 22 …… suction port, 3 …… leaf dodge means, 31… …
Dodge claw, 36 ... Regulating finger, 37 ... Leaf clearance space, 4 ...
… Thin flat material, 41 …… Leaf, 42 …… Book block, P ₁ …
... adsorption starting point, P ₂ ...... adsorption release point, S ...... leaf-inserting space.

Claims (1)

[Claims] 1. A stacking means provided with a leaf holder for stacking leaves in an upright state, a leaf feeding means for feeding leaves to the leaf holder one after another from an upper opening of the holder, and a leaf feeding means for feeding the leaves. Each of the supply leaves is provided with a leaf dodging means that protrudes behind each supply leaf and forms a leaf insertion space immediately below the front end of the leaf that is subsequently supplied, and the accumulating means has a large number of bottomed leaf holders that open in the radial direction. The leaf holder is composed of an impeller, and each leaf holder is sequentially moved to a leaf supply position by intermittent rotation of the impeller, and the leaf supply means adsorbs and holds the leaf on its circumferential surface to the leaf holder by rotation. Consists of a vacuum foil that supplies
The dough means is formed by rotatably provided dowel claws, and the tip of the dowel claws is arranged so as to project to the back of the supply leaf during the turning process, and the leaves are accumulated in an upright state. apparatus.