JPH0645417B2 - Separation device in paper feeding device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper feeding device suitable for use in a case where a paper storage sheet block that has reached a predetermined number is taken out and supplied to the next process while accumulating paper feed sheets. Related to the sorting device.

Conventional technology and its problems For example, a long paper is cut into a fixed-size sheet, and a paper storage sheet block that has reached a predetermined number is taken out while proceeding with continuous paper feeding and paper storage (stacking), and is supplied to the next process. In this case, while temporarily receiving (temporarily holding) the front edge of the sheet that is fed without interruption in order to store paper, a gripper is used to grip a predetermined number of sheet blocks already stored under the temporary receiving portion during the temporary receiving. It is conceivable that the paper can be taken out with the above procedure, and then the temporary receiving can be released to continue the paper storage, but slipping on the upper sheet of the already stored paper sheet block causes swelling etc. (the paper has a curl tendency depending on the texture). Therefore, gripping by the gripper is not properly performed, and troubles such as waste paper and take-out error occur, and problems occur such as a trouble in feeding a predetermined number of people.

In addition, there is a restriction on the paper feed level, which causes a problem that it is difficult to secure a sufficient space required for inserting the gripper with the paper storage sheet block.

OBJECT OF THE INVENTION The present invention has reached the predetermined number when the paper sheet sheet block, which has reached the predetermined number, is held and taken out by the gripper while the paper feeding and the paper storage are continuously progressed as described above. An appropriate and sufficient gripper insertion interval is formed between the sheet storage sheet block and the sheet that is continuously fed, and the sheets that are fed without interruption are placed above the sheet storage sheet block through the gripper insertion interval. It is designed to be able to securely receive (temporarily hold) in a fixed position, so that the gripper after that can take out the paper storage sheet block and feed the specified number of people accurately, so that the trouble does not occur. It is an object of the present invention to provide a separating device in a paper feeding device that can perform paper, paper storage, take-out and re-paper storage.

Therefore, the present invention forms a sheet feeding sheet separating device having a composite structure of a parent claw and a child claw, and temporarily receives the front edge of the sheet feeding sheet by the parent claw and simultaneously lowers the child claw. By pressing the front edge of the stored sheet block from above and applying compression to the stack, a sufficient gripper insertion interval is created between the sheet sheet block and the fed sheet. It is characterized in that the upper layer of the sheet storage sheet block is prevented from moving, swelling, and the like, so that the gripper or the like can take out the sheet without trouble and supply a predetermined number of sheets appropriately.

Embodiments of the Invention Embodiments of the present invention will be described in detail below with reference to FIGS. 1 to 8.

1 and 2 show a separating device in a paper feeding device, and FIG. 3 shows a device for taking out a sheet storage sheet block A using the separating device. The loosening device has a composite structure of a parent claw 1 and a child claw 2. The parent claw 1 is provided with an arm 3 that can be moved forward and backward with respect to the front edge of the sheet feeding sheet a, and is for temporarily receiving the sheet feeding sheet that interlocks with the arm 3 that is continuously provided at the lower end of the arm 3. A separation claw 4 is provided.

The separating claw 4 is a sheet receiving portion piece 5 projecting forward of an arm that supports the lower surface of the front edge portion of the sheets a that are continuously fed, and a sheet front edge portion that is connected to the base of the sheet receiving portion piece 5. A front contact piece 6 for receiving an edge is provided, and the sheet receiving part piece 5 and the front contact piece 6 are L-shaped.

The separating claw 4 is formed as a single part with the arm 3 as shown in FIGS. 1 and 2, or is formed as a separate part as shown in FIG.
Attach to the lower end of the arm.

On the other hand, the child claw 2 is provided with a slide arm 7 which is provided on the arm 3 of the parent claw 1 so as to be vertically movable with respect to the upper surface of the front edge of the paper storage sheet block A using the arm 3 as a guide. A sheet pressing leg piece 8 interlocking with the arm 7 continuously provided at the lower end is provided.

As shown in the figure, the child claw 2 has a structure in which it is set in the parent claw 1.
That is, the guide groove or hole 9 is formed in the longitudinal direction of the arm 3 of the parent claw 1.
The slide arm 7 of the child claw 3 and the sheet pressing leg piece 8 are inserted through the guide groove or hole 9, and the vertical movement is obtained by using the guide groove or hole 9 as a guide. The child claw 2 accommodates the sheet pressing leg piece 8 in the separating claw 4 when the child claw 2 rises, and projects below the separating claw 4 when the child claw 2 descends.

As shown in FIGS. 2, 3, and 5, in the protruding state, the upper surface of the front edge portion of the sheet storage sheet block A is pressed down to compress each stacked sheet, and the sheet is temporarily received by the separating claw 4. Sheet a
Insertion interval 1 between gripper and paper storage sheet block A
3 is formed. One or two or more combinations of the parent claw 1 and the child claw 2 are provided. In the embodiment, a pair of a pair of the parent claw 1 and the claw 2 is provided to form a separating device, and a gripper insertion / removal interval 10 is provided between the respective sets.

Similarly to the above, the left and right claws 2 move down under the provisional receiving of the feeding sheet of the separation claws 4 of the left and right claws 1 to press and compress the upper surface of the front edge portion of the already-stored sheet block A. 2, 3 and 5
As shown in the figure, the paper storage sheet block A is compressed in the region between the left and right compressions, and the gripper insertion interval 13 is formed between the paper storage sheet block A and the temporary receiving and feeding sheet a in the compression region.

Although not shown, the pair of the main claw 1 and the small claw 2 is made into a set, and the small claw 2
It is also possible to arrange two or more sheet pressing leg pieces 8 on the lower end of the arm 7 side by side with a space therebetween, and set the space between the left and right leg pieces 8 as the gripper loading / unloading space.

Reference numeral 11 denotes a support shaft that serves as a fulcrum fulcrum of the parent claw 1. The spindle 1
1 is horizontally installed so as to be inserted into the upper ends of the pair of parent claws 1. The left and right main pawls 1 are suspended from the support shaft 11 and swing back and forth around the support shaft 11 as a fulcrum.

On the other hand, the upper ends of the left and right claws 2 are projected from the guide groove or hole 9 of the parent claw 1, and the support shaft 1 parallel to the support shaft 11 is provided at the protruding end.
2 is pierced, and both claws 2 are suspended. The reference numeral 2 swings around the support shaft 12 as a fulcrum along with the swing of the main pawl 1 and, by giving a lifting force or a descending force to the support shaft 12, slides alone in the main pawl 1 under the suspension. Then move up and down.

Similarly, the parent claw 1 may be vertically movable. The vertical movement is performed by applying a lifting force or a descending force to the support shaft 11. The vertical movement imparts a function of slightly lifting the sheet feeding sheet 1 to the parent claw 1 brought to the sheet feeding sheet temporary receiving position.

The above-described movements of the parent claw 1 and the child claw 2, that is, the back and forth movement and the upward movement of the parent claw 1, and the up and down movement of the child claw 2 are performed by using a cam means, a fluid pressure cylinder, an electromagnetic means or the like.

FIG. 3 shows a device for taking out the sheet storage sheet block A using the separating device for feeding as described above. In the figure, a case is shown in which each movement of the above-mentioned sorting device is performed by a cam mechanism.

As shown in the figure, the sheet a cut to size is the conveyor 1
The paper is continuously fed by means of 4 and is stored on the receiving plate 15.
If a known detection device is provided and the passage of the paper feed sheet a is detected, it can be confirmed that the number of stored paper sheets has reached a predetermined number, and the sorting device or the gripper can be operated in timing.

The front edge of the receiving plate 15 is provided with a front pad 33 that regulates the front surface of the paper storage sheet block A. The front support 33 is capable of swinging up and down about a shaft 34 as a fulcrum, and when the storage sheet block A is taken out, the front support 33 falls down to a non-interference position shown by a broken line in the drawing.

A cam mechanism 29 is used for the up-and-down movement of the front support 33.
Reference numeral 50 in FIG. 3 denotes a trochanter that rolls following the cam surface of the peripheral cam wheel to transmit the motion to the front support 33.

Further, a rear knocker 35 that swings back and forth around a support shaft 36 as a fulcrum is provided at the rear edge of the receiving plate 15, and the rear surface of the paper storage sheet block A is tapped while the paper accumulation is in progress, and the front surface of the block 33 is used as a front plate
Align. In addition, the side ruler plates 45 (see FIG. 5) for controlling the left and right side surfaces of the storage sheet block A are provided on the left and right side edges of the receiving plate 15.
To provide.

The receiving plate 15, the front pad 33, the rear tap 35, and the side ruler plate 45
Then, the storage sheet block accommodating space is formed, and the blocks are aligned front and rear and side.

Further, a paper accumulating sheet block guide rail plate 16 at the same level as that of the back rail 15 is extended toward the front of the back rail 15, and a gripper 17 that moves back and forth in parallel with the guide rail 16 is provided. In order to move the gripper 17 in parallel, a rail 22 composed of a rod provided in parallel with the guide rail plate 16 is horizontally installed.

The gripper 17 is composed of an upper gripper 18 and a lower gripper 19 directed toward the paper storage sheet block A, and a slider 20 integrated with the lower gripper 19 is laterally slidably inserted into the rail, and at the same time, from the upper gripper 18. A vertically extending support column 21 is vertically slidably inserted into the slider 20, and both upper and lower grippers 18 and 19 can be advanced and retracted using the rail 22 as a guide. At the same time, the upper gripper 18 can be moved up and down with the vertical slide of the column 21. While the upper and lower grippers 18 and 19 move forward and backward, the upper and lower grippers 18 move up and down to open and close the mouthpiece of the sheet storage sheet block A.

As a mechanism for imparting a reciprocating motion to the gripper 17,
As illustrated, the endless chain 3 is parallel to the rail 22.
0 is mounted, and the slider 20 is connected to the forward movement portion of the chain 30. 31 indicates the connecting portion. The chain 3
0 is made to move forward or backward by the forward and reverse driving of the wheel 39, and the forward movement of the chain 30 causes the gripper 17 to move.
Is moved backward in parallel with the guide rail plate 16, and is moved forward in the backward movement.

Further, as a mechanism for giving an opening / closing motion to the gripper 17, as shown in the figure, a parallel-shifting cam lever 23 is used. The cam lever 23 is arranged parallel to the rail 22,
Both ends of the cam lever 23 are pivotally supported by a support shaft 28 on a crank 26 swinging by a support shaft 27, and the parallel shift is obtained by the swing of the crank 26. The swinging motion of the crank 26 is given by a cam mechanism 29, for example. Reference numeral 49 in FIG. 3 denotes a rotator that rolls following the cam surface of the peripheral cam wheel to transmit the motion to the crank 26 and the cam lever 23.

As described above, the cam lever 23 that can be parallel-shifted
A groove rail 25 is provided in the longitudinal direction of the roller, and a trochanter 24 provided at the lower end of the vertical slide column 21 of the upper gripper 18 is provided on the groove rail 25.
And slide along the groove rail 25 to allow rolling.

By the above, the cam lever 23 shifts in parallel, and accordingly, the support column 21 slides vertically via the trochanter 24, and the upper gripper 18 moves up and down. The gripper 17 holds and takes out the paper storage sheet block A by a combined operation of the forward / backward movement and the opening / closing movement of the mouthpiece based on the vertical movement of the upper gripper 18.

In order to take out the paper storage sheet block A by the gripper 17, the separating device is provided with the paper storage sheet block A.
A gripper insertion interval 13 is formed between the sheet and the sheet a. The gripper insertion interval 13 is formed by the cooperation of the parent claw 1 and the child claw 2 as described above.

As described above, the parent claw 1 is provided so as to be movable back and forth between the temporary receiving position and the standby position of the sheet feeding sheet a, and when the sheet storage sheet block A reaches a predetermined number, the parent claw 1 waits together with the child claw 2. From the position, the sheet is advanced to the temporary receiving position for the sheet a. The forward / backward movement of the parent claw 1 is given by an exemplified cam mechanism 44.

For example, as shown in FIG.
Is provided, and the trochanter 48 rolls following the cam surface of the peripheral cam ring to move the parent pawl 1 forward and backward, thereby obtaining the temporarily received position of the fed sheet and the standby position.

P1 shown in FIGS. 6 and 7 is a sheet feeding sheet temporary receiving position, and as shown in FIG. 6, the parent claw 1 is from the temporary receiving position P1 to P.
Retreat to position 2, move up to position P3, and move from position P3 to P4.
To the temporary receiving position P1 by so-called box movement. Above position P2 or P3
Is the standby position. Further, as shown in FIG. 7, it is possible to simply swing the parent claw 1 to obtain the temporary receiving device P1 and the standby position P2.

In either case of the box movement shown in FIG. 6 and the swinging movement shown in FIG. 7, the parent claw 1 is slightly raised to the position P1 'and the feeding sheet a
The front edge of is to be raised. Ascending from the position P1 to P1 'is, for example, as shown in FIG. 3, a suspension lever 41 which swings about a spindle 43 as a fulcrum on a spindle 11 for suspending the parent claw 1.
It is obtained by pivotally supporting and rolling the trochanter 47 provided on the suspension lever 41 following the cam surface of the peripheral cam ring of the cam mechanism 44.

Thus, the parent claw 1 is brought to the temporary receiving position, and the separating claw 4 starts the temporary receiving of the sheet feeding sheet a. That is, the separation claw 4
While the front contact piece 6 receives the front edge of the sheet feeding sheet a and prevents the sheet from advancing, the sheet receiving section 5 supports the lower surface of the front edge of the sheet feeding sheet a.

As the temporary receiving is started, the child claw 2 descends,
The sheet pressing leg piece 8 loaded in the parent claw 1 is projected below the separating claw 4, and the upper surface of the front edge portion of the sheet storage sheet block A stored immediately below is pressed and compressed. The gripper insertion interval 13 is formed by the compression. The claw 2
For example, a cam mechanism 44 is applied as a motion mechanism that gives a lifting force and a descending force to the. In FIG. 3, reference numeral 40 denotes a suspension lever which is pivotally connected to the slave claw 2 by the support shaft 12 and suspends the suspension, and the suspension 46 provided on the suspension lever 40 is conformably rolled according to the cam surface to suspend the suspension. The lever 40 is swung up and down with the support shaft 42 as a fulcrum to obtain the vertical movement of the child claw 2.

Thus, after the gripper insertion interval 13 is formed, the gripper 17 is advanced by the advancing / retreating motion mechanism from the retreat standby position, and the upper gripper 18 is expanded by the interval 13
And the lower gripper 19 is inserted into the lower surface of the paper storage sheet block A, and then the upper gripper 18 descends and holds the front edge of the block A with the lower gripper 19. After the gripping, the child claw 2 is lifted to release the above-mentioned pressing of the sheet storage sheet A and retracted to the standby position P2, and the front stopper 33 is laid down below the guide rail plate 16. The gripper 17 starts retreating while holding the holding of the paper storage sheet block A after the pressing by the child claw 2 and the regulation by the front pad 33 are released, and draws the paper storage sheet block A onto the guide rail plate 16. .

After the rear end of the paper storage sheet block A has been completely carried out onto the guide rail plate 16, the upper gripper 18 rises to release the gripping, and in synchronization with the release, the pusher 38 causes the paper storage sheet block A to move. When it reaches the rear part, the upper surface of the guide rail plate 16 is pushed further forward and is fed to the next process.

The vertical slide column 21 of the upper gripper 18 is the guide rail plate 16
Of the paper storage sheet block A, which is disposed on the side of the column, has a bar on the upper end of the column 21 so as to traverse over the guide rail plate 16, the gripper 18 is attached to the bar, and the pusher 38 pushes out the paper sheet sheet block A. Prevent interference. 37 in FIG.
Is a pusher operation chain provided so as to run parallel to the guide rail plate 16, and 51 is a chain wheel.

As described above, a series of operations for feeding the sheet a, accumulating the sheets, and taking out the accumulated sheet block A are continuously performed.

Therefore, the present invention provides a separating device having a composite structure of the parent claw and the child claw to provide a sufficient and appropriate gripper insertion interval between the sheet storage sheet block and the sheet to be continuously fed. The paper sheet can be reliably formed, and the paper feed sheet is accurately and temporarily received at the upper fixed position of the paper storage sheet block, and the gripper takes out the paper storage sheet block by the cooperation of the parent claw and the child claw, and feeds a predetermined number of sheets. The work can provide a preferable situation.

Further, the loosening device not only forms a sufficiently wide gripper insertion interval by the synergistic action of the parent and child claws, but also reliably suppresses swelling and play of the upper layer sheet of the paper storage sheet block, When gripping with a gripper, problems such as sheet damage, gripping error (left-over load), and collapse can be resolved, and the difference in the number of people can be prevented.

Further, in the present invention, since the means for increasing the gripper insertion interval in the compression portion by the compression operation of the storage sheet block by the child claw is adopted, the raising amount for lifting the feeding sheet of the parent claw separation claw is performed. Or a more limited small amount of lift is sufficient, and therefore, the desire to increase the gripper insertion interval makes it possible to lift the leading edge of the feed sheet by a large amount to prevent the feed sheet from slipping off. Problems such as occurrence can be solved, and while the paper storage sheet block is taken out, the paper feed sheet can be properly temporarily received and can be used for re-paper storage.

[Brief description of drawings]

1 and 2 are perspective views of a separating device showing an embodiment of the present invention. FIG. 1 shows a child claw rising state, FIG. 2 shows a child claw descending state, and FIG. 3 shows the above separating device. FIG. 4 is a side view of a paper storage sheet block unloading device incorporating the above, FIG. 4 is a plan view showing a sorting operation state of the sorting device, FIG. 5 is the same sectional view, FIG. 6, FIG.
FIG. 8 is a side view illustrating the forward / backward movement of the separating device, and FIG. 8 is a side view showing a modification of the separating claw of the parent claw. 1 ... Parent claw, 2 ... Child claw, 3 ... Arm, 4 ... Separation claw, 5 ... Sheet receiving part, 6 ... Front part, 7 ... Slide arm, 8 ... Sheet presser Leg pieces, 9 ... Guide groove or hole, 10 ... Gripper spacing, 11, 12 ...
Spindle, 13 ... Gripper insertion interval, a ... Paper feed sheet, A ... Paper storage sheet block.

Claims (1)

[Claims] 1. A sheet feeding device configured to store sheets while continuously feeding sheets, and to take out a sheet sheet block that has reached a predetermined number by a gripper to be used in the next step. The parent claw is composed of a composite structure. The parent claw includes an arm that is movable back and forth at a sheet temporary receiving position and a standby position with respect to the front edge of the sheet, and a feeding sheet temporary receiving claw that is continuously provided at the lower end of the arm. The separating claw is moved forward to the temporary sheet receiving position in conjunction with the forward / backward movement arm to perform temporary receiving of the fed sheet at a higher level of the sheet storing sheet block having a predetermined number of stored sheets. The pawl includes an arm provided on the arm of the parent pawl that moves back and forth integrally with the arm, and is vertically movable with respect to the upper surface of the front edge of the paper storage sheet block, and a sheet pressing leg piece connected to the lower end of the arm. And the leg for the sheet presser is on A structure in which a gripper insertion interval is formed between the provisionally received sheet feed sheet and the sheet storage sheet block by descending in conjunction with the vertical movement arm and pressing the upper surface of the front edge portion of the predetermined number of sheet storage sheet sheet blocks that have already been stored. The sorting device in the sheet feeding device, which is characterized in that.