JPH06199434A - Paper feeder of three-way cutter - Google Patents

Abstract

PURPOSE:To make uncut books arranged side by side on a paper feeding table feedable to an inlet port of a three-way cutter smoothly and accurately. CONSTITUTION:A paper feeding table is divided into a fixed table 2 where uncut books B are arranged side by side, and a movable table 3 whose top surface is lower than that of the fixed table 2, while this movable table 3 is lifted up and these books B are mounted on this table 3 and, after a book B1 at the front row is fed in an inlet port 35 of a three-way cutter, another book B2 in the wake of the forefront book B1 is mounted on the fixed table 2, and a delivery mechanism 20, restoring the books to the original position, is installed in a position where the forefront book B1 was placed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for smoothly feeding uncut sheets arranged on a paper feed table to a suction port of a three-way cutting machine.

[0002]

2. Description of the Related Art As a means for feeding an uncut book to a suction port of a three-sided cutting machine, a paper feed table is made of a material having a small friction, and the book is slid forward by its own weight. There has been a means for feeding a book against the friction between the paper feed table and the book by increasing the inclination angle to increase the weight of the book.

However, in the former case, there is a limit to reducing the friction of the paper feed table, and since the static friction coefficient and the dynamic friction coefficient are different, so-called stick slip occurs and the book is difficult to slip smoothly. was there.

In the latter case, it is difficult to set the inclination angle of the paper feeding table, and if the inclination angle is not enough, the book does not slip, and conversely, if the inclination angle is too large, the mouthpiece picks up the front row of books. , The following several books sometimes went out, and the suction force of the mouthpiece was lost due to the friction between the book in the front row and the book following it, and the book in the front row could not be sucked.

[0005]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to eliminate the drawbacks of the conventional paper feeding means and to smoothly convey an uncut book to the mouth.

[0006]

According to the present invention, the paper feed table is divided into a fixed table on which uncut sheets are lined up and a movable table whose upper surface is lower than the upper surface of the fixed table when stopped, and the movable table is divided into two parts. After raising the books and placing the books in the front row at the suction port of the three-sided cutting machine, place the books in the front row at the position where the books in the front row were, and then place the books that follow the front row on the fixed base, It is characterized by the provision of a feeding mechanism for returning to.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, reference numeral 1 denotes a paper feed table, which is divided into, for example, three fixed tables 2 and two movable tables 3 between the fixed tables 2. The fixed base 2 is fixed via a spacer 5 to a stay 4 fixed to a frame (not shown) of the paper feeding device.

The upper surface of the movable table 3 when the movable table 3 is stopped is slightly lower than the fixed table 2 so that the uncut book B is placed on the fixed table 2. 6a is a front mounting bracket, and 6b is a rear mounting bracket.

Reference numeral 7 denotes a pair of left and right elevating links forming a parallel link. The upper drive lever 8 is pivotally attached at its upper end to the front mounting member 6a, and the upper end is pivotally attached to its rear mounting member 6b. A driven lever 9 and a front shaft 10 pivotally attached to a lower end portion of the upper drive lever 8 have a front end portion, and a rear shaft 11 pivotally attached to a lower end portion of the upper driven lever 9 has a rear end portion pivotally attached, And a rod 12. The lower portion of the upper drive lever 8 extends downward, and the lower end portion forms a protruding piece 13.

Reference numeral 14 denotes a front-rear movement link forming a parallel link, and a lower drive lever 15 having an upper end pivotally attached to the front shaft 10 and a lower end pivotally attached to a feeding shaft 16, and an upper end of the rear axle 11. The lower driven lever 17 is pivotally attached to the fixed shaft 18, and the lower end portion is pivotally attached to the fixed shaft 18, and the rod 12. The feeding shaft 16 and the fixed shaft 18 are pivotally attached to a frame (not shown). A front stopper 19a and a rear stopper 19b, which are in contact with the protruding piece 13 of the upper drive lever 8, are provided on the side surface of the lower drive lever 15 at predetermined intervals. The feeding mechanism 20 is composed of the elevating link 7 and the forward / backward movement link 14.

Reference numeral 21 denotes a sheet feeding main shaft that swings back and forth in conjunction with a three-way cutting machine, to which a drive lever 22 is pivotally mounted, and a tip of a drive rod 23 pivotally mounted to the drive lever 22. The rear end portion is pivotally attached to the upper drive lever 8 by a drive pin 24 between the front shaft 10 and the protruding piece 13.

Reference numeral 25 denotes a brake wheel fixed to the payout shaft 16, and 26 denotes a pair of front and rear brake pieces. The brake wheel 25 is shown in the drawing until the projecting piece 13 contacts the front stopper 19a or the rear stopper 19b. It is braked by the brake piece 26 by the spring, and becomes free after the contact.

Numeral 27 is a lower front contact lever, and a lower front contact 28 is bent and protrudes upward from the front end concave portion of each fixed base 2 so that the uncut paper B1 in the front row does not move forward more than necessary. There is. Reference numeral 29 is a hawk rod for rotating the lower front contact lever 27 up and down, and the long hole 30 at the front end is slidably fitted into the paper feed spindle 21.

Reference numeral 31 is a cam follower, which is used for the paper feed spindle 2.
The hawk rod 29 is moved back and forth by the cam 32 fixed to 1. The rear end of the hawk rod 29 and the rear end of the lower front contact lever 27 are connected by a connecting lever 33, and the upper end of the connecting lever 33 and the rear end of the lower front contact lever 27 are connected to the frame. It is fixed by a front contact shaft 34 that is pivotally attached to. With this configuration, when the hawk rod 29 moves back and forth due to the front and rear rotation of the cam 32, the lower front pad 2
The reference numeral 8 swings up and down about the front contact shaft 34.

Numeral 35 is a suction port of a three-way cutting machine, and numeral 36 is an upper front pad, which is moved up and down by an elevating mechanism (not shown). When the mouthpiece 35 sucks the book B1, the upper and lower front abutments 28, 36 are selected by appropriately selecting the timing of the cam 32.
Are moved so as not to interfere with suction.

[0016]

Now, as shown in FIGS. 1 and 3, the sheet feeding device returns from the state where the movable table 3 is returned to the original position after the sheet feeding is completed.
The paper feed spindle 21 that is interlocked with the three-way cutting machine is rotated backward (counterclockwise), the drive lever 22 is moved forward, and the protruding piece 13 is moved.
Until it contacts the front stopper 19a.
Rotates rearward about the front shaft 10. At this time, the lower drive lever 15 is braked as described above, and the forward / backward movement link 1
4, the movable table 3 is moved upward by the lifting link 7 as shown by the solid line arrow in FIG. 4 and moved backward as shown by the imaginary line arrow, and the uncut sheet B is separated from the fixed table 2. It is mounted on the movable table 3.

Then, as shown by the imaginary line in FIG. 1, when the protruding piece 13 pivoted forward comes into contact with the front stopper 19a and the brake wheel 25 releases the braking of the brake piece 26, the forward / backward movement link 14 is released. Upon operation, the vertical drive levers 8 and 15 move together as a unit to move forward around the payout shaft 16.
The movable table 3 also moves in parallel forward. The amount of descent at this time is
Since the vertical drive levers 8 and 15 are integrated, the amount becomes smaller than the amount of rise.

When the movable table 3 descends while advancing and reaches the sheet feeding position in FIG. 5, the suction port 35 moves as shown by the solid arrow to suck the book B1 in the front row and the upper and lower front supports 2
8 and 36 escape, and the mouthpiece 35 is book B as shown by the imaginary line arrow.
1 is fed to the three-way cutting machine. At this time, book B is fixed base 1
It is above. Further, as shown in FIG. 6, the movable table 3 moves forward, and the book B2 following the book B1 in the front row comes into contact with the returned upper and lower front pads 28, 36.

Next, when the paper feed spindle 21 rotates forward (clockwise) and the drive rod 23 retracts, the lower drive lever 15 is in a fixed state and the forward / backward movement link 14 does not operate, and the elevating link 7 moves. Operate. Therefore, the upper drive lever 8 pivots rearward about the front shaft 10 to lower the movable table 3 until the protruding piece 13 contacts the rear stopper 19b, and then, as shown by the imaginary line arrow in FIG. Retreat to. When the protruding piece 13 comes into contact with the rear stopper 19b, the forward-backward movement link 14 is actuated again, the movable table 3 is further retracted without contacting the book B, and the book B2 is fixed at the position of the book B1 in FIG. The movable table 3 is returned to the original position shown in FIGS. Hereinafter, this operation is repeated.

In the feeding mechanism 20, the book on the fixed table 2 is placed on the movable table 3, the book B1 in the front row is sucked by the suction port 35, and the succeeding book B2 is fixed at the position where the book B1 was. Mounted on the base 2 and movable base 3 so that it can be returned to its original position.
Should be moved. Therefore, the structure of the feeding mechanism 20,
The operation is not limited to the embodiment.

In the embodiment, the movable table 3 can be fed, moved forward and downward, and the book B can be placed on the fixed table, moved downward, and returned to the backward direction using, for example, a cam mechanism or a crank mechanism.

[0022]

The feeding mechanism interlocked with the three-sided cutting machine forcibly sends a certain amount of uncut sheets forward, so that there is a problem such as a mistake in feeding the mouthpiece or the fact that several books appear at once. It can be supplied smoothly.

[Brief description of drawings]

FIG. 1 is a side view.

FIG. 2 is a plan view of a paper feed table.

FIG. 3 is a side view of a main part when the movable table is returned.

FIG. 4 is a side view of a main part when the movable table is raised.

FIG. 5 is a side view of an essential part during sheet feeding.

FIG. 6 is a side view of the main parts when the movable table further advances and descends after being fed, and the book is placed on the fixed table.

[Explanation of sign]

 1 Paper Feeding Table 2 Fixed Table 3 Movable Table 7 Elevating Link 14 Back-and-Forth Link 20 Feeding Mechanism 35 Sucker B Uncut Book B1 Book in front row B2 Book following book in front row

Claims (2)

[Claims] 1. The paper feed table is divided into a fixed table on which uncut sheets are lined up and a movable table whose upper surface is lower than the upper surface of the fixed table when stopped, and the movable table is lifted to load the books. After feeding the books in the front row through the suction port of the three-sided cutting machine, at the position where the books in the front row existed, the book following the front row is placed on the fixed stand and a feeding mechanism is provided to return it to the original position. Paper feed device for three-sided cutting machine. 2. The feeding mechanism comprises an elevating link for raising and lowering a movable table and a front and rear moving link for moving the elevating link back and forth. The front and rear moving link is linked only with a three-way cutting machine when the elevating link operates. The sheet feeding device of the three-way cutting machine according to claim 1, further comprising a brake mechanism for braking the forward and backward movement links.