JPS5823309B2 - Automatic paper replenishment device for top feeder type paper feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention particularly relates to an automatic paper replenishment device that is capable of automatically and continuously replenishing paper feed in a top feeder type paper feeder.

Conventional paper replenishing devices of this type temporarily stop the paper feed operation and then replenish the paper feed, which not only requires a worker to constantly monitor and replenish paper shortage, but is also extremely inefficient. This caused the top feeding operation to be interrupted and hindered the continuity and automation of subsequent work.

SUMMARY OF THE INVENTION In order to improve the above-mentioned drawbacks, the present invention provides an automatic paper replenishing device for a top feeder type paper feeder, which was developed for the purpose of completely automating and continuous paper replenishment.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A detailed description will be given below of the drawings showing a specific configuration of the present invention as an example.

As shown in the drawing, a first elevating device 4 is provided so as to be movable up and down via a first guide section 2, and a replenishment paper feeder, which is one of the essential parts of the present invention, is provided above the first elevating device 4. The block lifting platform 3 is fixedly attached.

Although this elevating table 3 is divided into two sections in communication with a conveyor 11, which will be described later, it is essentially one piece.

The first lifting device 4 is provided with a first guide roller 5 that contacts the first guide 2 and rotates when going up and down, in order to smoothly move up and down the first lifting device 4.

A pair of worm gears 6 rotate synchronously, and the worm gears 6 are disposed at the upper end of the first guide 2 and on both sides of the first lifting device 40.

7 is a worm wheel that interlocks and rotates with the worm gear 6; 8 is a 10th worm wheel that rotates integrally with the worm wheel 7;
- La and 9 are wires that can suspend the first lifting device 4;
The hook on the tenth ring 8 is fixed to the weight 10 by turning.

11 and 11' are both belt conveyors, and as shown in FIG. 2, the belt conveyors 11 and 11' are arranged approximately at right angles.

That is, one belt conveyor 11' intermittently transfers the replenishment paper feed block 12, which has been sorted by the required number of sheets, to the other belt conveyor 11 at regular intervals; The replenishment paper feed block 12 that is intermittently transferred by the conveyor 11' is taken over and is intermittently transferred and placed on the replenishment paper feed block elevating table 3.

The supplementary sheet feeding block 12 may be fed directly from the conveyor 11 without using the conveyor 11'.

In the above configuration, in order to raise the replenishment paper feed block elevating table 3, first, the worm gear 6 is connected to a motor (not shown).
This rotation of the worm gear 60 causes the worm wheel 7 and the tenth roller 8 to rotate, and this rotation causes the wire 9 to move according to the gravity of the weight 10, thereby raising the first lifting device 4.

The replenishment paper feed block elevating platform 3 provided in the first elevating device 4 is elevated.

The above-mentioned upward movement of the replenishment paper feed block elevating table 3 is started by the detection of the residual level of the paper feed block, and is continued until the replenishment paper feed block elevating table 3 reaches the replenishment level position, and at this replenishment level position, the replenishment The replenishment paper feed block 12 on the paper block elevating table 3 is placed in a child state under the paper feed block on the paper feed block elevating table, which will be described later, and transshipment is performed.

This transfer is carried out after the paper feed block elevating table, which will be described later, is brought to the same plane as the replenishment paper feed block elevating table, and after a state is established in which the replenishment paper feed block is supported in a cooperative and non-interfering manner, for example, the motor The worm gear 6 and the worm wheel 7 are rotated in the opposite direction from the previous time, and the wire 9 is moved against the gravity of the weight 10 to move the replenishment paper feed block lifting platform 3 to the first lifting device 4. This is done by lowering the lever to the lower limit standby position.

At this lower limit standby position, the belt conveyor 11 also receives paper feed from the paper feed block 12 again, and the above operation is repeated.

Reference numeral 13 denotes a pair of second guides located on both sides of the paper feed block holding section 210 and provided above and below, and the second guides 13 are provided with guide elongated holes 14 that are long in the up and down direction.

Reference numeral 15 denotes a second elevating device that is installed in this elongated guide hole 14 so that it can be raised and lowered via a second guide roller 16. A cylinder 17 is integrally installed horizontally in this second elevating device 15. A paper feed block elevating table 18, which is a component of the present invention and is fixed to the second elevating device 15, is connected to the piston shaft 17' of the piston shaft 17'. It protrudes and supports the lower surface of the paper feed block 27.

That is, the paper feed block elevating table 18 has a two-part structure that can be inserted and removed in the left-right relative direction between a position where the lower surface of the paper feed block is supported and a position where the support is released. The piston shafts 11' of the cylinders 17 are connected to each other, and the above-mentioned insertion and removal are performed at predetermined timings to be described later.

22 is a worm gear provided on both sides of the upper part of the paper feed block holding section 21, and 23 is a worm wheel that meshes with the worm gear 22.

Reference numeral 25 denotes a wire for suspending the second lifting device 15, which is hooked onto the 20th wire 24 and fixed to a weight 26.

Reference numeral 28 denotes a suction cup connected to a suction source provided at the paper feed level position above the paper feed block holding section 21, and the suction cup 28 sucks up the uppermost sheet raised to the paper feed level position. The paper is fed between the feed and delivery rollers 34 and fed into the processing process.

29 is a lower limit stop detector of the replenishment paper feed block lifting platform 3;
0 is an upper limit position detector of the replenishment paper feed block 12, and 33 is a replenishment paper feed block transshipment completion detector that detects that the replenishment paper feed block 12 has been transferred from the belt conveyor 11 onto the replenishment paper feed block elevating table 3. , 31 is an upper limit position detector for the paper feed block elevating table 18, 32 is a rise command command device that issues a command to raise the paper feed block elevating table 18 in accordance with the feeding of paper by the suction cup 28, and 35 is a paper feed block elevating table during a transshipment operation. 18 lower limit position detector.

In the above configuration, the worm gear 22 is, for example, a motor (
(not shown), the worm wheel 23 rotates together with the roller 24 and the wire 25 is rotated by its weight 26.
The second elevating device is raised by rotating according to the gravity of the paper feed block elevating table 18.

This upward movement follows the paper feeding by the suction cup 28,
Always keep the paper feed level at a constant height.

By repeating the above raising operation, when the paper feed block lifting platform 18 reaches the set position of the upper limit position detector 31 as shown in FIG. The replenishment paper feed block 12 is fed onto the replenishment paper feed block elevating table 3, the paper feed is detected by the detector 33, and the elevating table 3 starts to rise based on the detection. It goes without saying that the paper feeding and raising of the paper may be started before the paper feeding block elevating table 18 reaches its upper limit.

When the replenishment paper feed block 12 reaches the child state below the paper feed block 27 due to the rise of the replenishment paper feed block elevating table 3, that is, the top surface of the replenishment paper feed block 12 is aligned with the lower surface of the paper feed block elevating table 18. Both blocks 27 are in contact with each other, and the lifting platform 18 is inserted between both blocks 27°12.
. Both blocks 12 and 27 are supported on the replenishment paper feed block elevating table 3, and then the second elevating device 15 is lowered to move downward, and the lower limit where the elevating table 3 is located. The descent continues until the position detector 35 is reached.

The lowering operation is performed by rotating the worm gear 22 and the wheel 23 in the opposite direction to the lowering operation.

That is, the paper feed block elevating table 18 is first moved as shown in FIGS.
As shown in Figures C and D, the cylinder 17 is removed in the direction of arrow A by the contraction operation, then lowered in the direction of arrow B by the lowering of the second lifting device 15, and then when it reaches the lower limit position, the cylinder 17 is extended. As a result of the operation, the paper feed block elevating table 18 is moved in the direction of arrow C, and is completely aligned with the replenishment paper feed block elevating table 3. Here, the first and second elevating tables 3 and 18 work together to replenish and feed the paper feed block. The paper block 12 is supported and transferred onto the paper feed block elevating table 18.

That is, the paper feed block elevating table 18 and the supplementary paper feed block elevating table 3 are provided so that they are on the same plane and do not interfere with each other, and the above operation causes the paper feed block elevating table 18 to move as shown in FIG. 4E. is on the same plane as the replenishment paper feed block elevating table 3 and supports the replenishment paper feed block 12 in a non-interfering state.

After that, the replenishment paper feed block elevating table 3 returns to the lower position as shown in FIGS. Then, the paper is transferred onto the paper feed block lifting platform 3, and then the paper is moved upward.

The lifting platforms 3 and 18 divide the support platform that supports the entire area of the paper into two,
In addition, the alloy has a shape that has a width that uniformly supports the paper.

In the figure, a replenishment paper feeding block lifting table 3 is arranged in the middle, and paper feeding block lifting tables 18 are arranged on the left and right sides, and both are arranged in a wave-shaped interlocking state so that they constitute a coplanar support table without interference with each other.

That is, the paper feed block elevating table 18 is as shown in FIGS.
As shown in the figure, at the position inserted from the left and right sides, the replenishment paper feed block 12 is juxtaposed on the same plane to the left and right with the replenishment paper feed block elevating table 3 in the middle, and the replenishment paper feed block 12 is raised and lowered from the lower surface of the replenishment paper feed block 12. The paper feeding block lifting table 18 and the supplementary paper feeding block lifting table 3 are configured to cooperate with and support the table 3, and in the side-by-side state, the paper feeding block lifting table 18 and the supplementary paper feeding block lifting table 3 have a corrugated shape extending from the side-by-side portion toward the other. portions 3' and 18', and each lifting platform 3, 18 supports the lower surface of the replenishment paper feed block without interference in the other support area, and the paper feeding block elevator 18 is refilled from the same support position. Paper feed block 1
The structure is such that the above-mentioned transshipment is carried out by raising the lower surface of the container 2 while stably supporting it over a wide area.

After the above-mentioned transshipment, the paper feed block elevating table 18 is intermittently raised to maintain the uppermost part of the paper feed block at the paper feed level by the above operation, and continues to feed and send out the paper.

Is the removal and lowering of the paper feed block lifting platform 18 and the raising of the paper feeding block to the paper feeding level position during the above-mentioned reloading performed by raising the replenishment paper feeding block lifting platform 3?
Alternatively, the permissible range (vertical error) of the paper feed level position may be set to a wide range, and the upward movement may be stopped during the time period required for transshipment.

In reality, the suction board 28 is moved to the second lifting platform 1 due to its elasticity.
The slight downward movement of the paper feed block 27 due to the removal of the paper feed block 8 and the movement of stopping the paper feed block 27 from rising until reloading can be sufficiently absorbed.

According to the present invention, when the number of paper feed blocks remaining in the paper feed block holding section is low, this is automatically detected and the paper feed block elevating table is refilled and the paper feed block elevating table is refilled. The replenishment paper feed block on the replenishment paper feed block elevating table is lowered to a position where it is flush with the replenishment paper feed block elevating table without being interfered with by the paper feed block, and there is no interference with the replenishment paper feed block elevating table. can be transferred onto the paper feed block elevating table, and by operating the elevating table that supports the lower surface of the replenishing paper feed block and the elevating table that supports the lower surface of the paper feed block in interconnected operation as described above, the paper feed block elevating table can be reloaded. After removal or during transshipment, paper can be refilled extremely smoothly without paper falling off, bending, or wasting paper.

Therefore, replenishing the replenishment paper feed block does not require human labor (
Not only is this automatically and continuously carried out, but during operation, the uppermost part of the paper feed block is always kept at the paper feed level position, and paper feeding can be carried out continuously without interruption.

Further, according to the present invention, a number of advantages can be obtained, such as eliminating the need for a complicated mechanism and providing a simple and inexpensive continuous paper feeding mechanism.

As described above (the paper feed block elevating table 18 has a two-part structure, and at the time of reloading, it is inserted so that it is juxtaposed to the left and right with the replenishment paper feed block elevating table 3 in the middle, and from the juxtaposed part, the paper feed block elevating table 18 is inserted in parallel to the left and right). is the extended corrugated portion 3', 18
', and each lifting table 3 and 18 supports the lower surface of the replenishment paper feed block without interference in the other support area, so that both the lifting table 3 and 18 can handle heavy replenishment paper feed. While ensuring a sufficient support area to stably support the lower surface of the block 12 over a wide area, the above transshipment can be performed by placing both blocks side by side without interference, and the paper feed block lifting table 18 continues to feed paper even after transshipment. It is possible to accurately support the block and supply it to the paper feeding level.

In addition, since the two lifting tables 3 and 18 are arranged in the above-mentioned interlocking relationship to allow the transshipment to be carried out, each lifting table 3.18 can pass vertically without being interfered with by the other. When placing the elevating table 18 side by side on the left and right sides of the replenishment paper feeding block elevating table 3, even if the elevating table 18 is not inserted exactly from the side, for example, even if the elevating table 18 is lowered below the level of the elevating table 30, it will not fall too far. If it is inserted under the lifting platform 3 from a certain position and then raised, it can pass through the lifting platform 3 without any hindrance and the above-mentioned transshipment can be carried out reliably.

This is the same as the lifting platform 3 for performing the above-mentioned juxtaposition.
To make design extremely advantageous by eliminating the need for accurate insertion level setting.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a front view schematically showing an example of the operating mechanism of a top feeder type paper feeder, and FIG. A slope view illustrating paper feeding from the top of the block lifting platform, FIG. 3 is a slope view illustrating the relative movement between the replenishment paper feeding block lifting table and the paper feeding block lifting table, and FIGS. 4 A to G show the same correlation. It is a front view which explains and shows interlocking. 3.”°...°Replenishment paper feed block elevating platform, 4...
・First lift! Placement, 11, 11'...Belt conveyor, 12...°°°Replenishment paper feed block, 15...
...Second lifting device, 17...Cylinder, 1
8...Paper feed block lifting platform, 3', 18'...
°...Waveform section, 27...Paper feed block.

Claims (1)

[Claims] 1. While supporting the bottom surface of the paper feed block, lift it up and keep the top surface at the paper feed level (a paper feed block elevating table that rises is provided, and a supplementary paper feed block that rises and lowers below the paper feed block). A lifting platform is provided, and the replenishment paper feed block elevator is connected to a replenishment paper feed block conveyor so as to receive the supply of replenishment paper blocks when descending, and the replenishment paper feed block elevator is supplied from the conveyor when ascending. While supporting the bottom surface of the replenishment paper feed block, lift it up until it comes into contact with the bottom surface of the paper feed block lifting table, and with the intervention of the paper feed block lifting table, both blocks are in the upper and lower state, and the other The paper block elevating table has a two-part structure so that it can be inserted and removed in the left-right relative direction between a position where the lower surface of the paper feed block is supported and a position where support is released. When the state is formed, the block is divided into two and extracted from between both blocks to the left and right sides, and both blocks are supported on the replenishment paper feed block elevating table, and after the removal, they are lowered until reaching the same level as the replenishment paper feed block elevating table. The refilling paper feed block is inserted into the lower surface from the left and right sides of the replenishment paper feed block, and the paper feed block elevating table is placed side by side on the same plane to the left and right with the replenishment paper feed block elevating table in the middle at the insertion position. The lower surface of the paper feed block is supported in cooperation with a replenishment paper feed block elevating table, and the paper feed block elevating table and the replenishment paper feed block elevating table move toward each other from the juxtaposed portion in the juxtaposed state. are engaged by the extended corrugated portions, and each lifting platform supports the lower surface of the replenishment paper feed block in a mutually supporting area without interference, and from the supporting position, the paper feeding block elevator is engaged with the above-mentioned engagement. In a top feeder type paper feeding machine, the top feeder type paper feeding machine is characterized in that the above-mentioned paper feed level is maintained at the above-mentioned paper feeding level (and then raised again and the above-mentioned both blocks are transferred from the replenishment paper feeding block lifting platform to the paper feeding block lifting platform. Automatic paper replenishment device.