JPS5820597Y2 - Replenishment device for thin plate-like workpieces - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a method for supplying a predetermined number of sheets to a feeding area of an automatic feeding device such as a paper feeding device that can feed thin plate-shaped workpieces such as paper one sheet at a time to a processing machine such as a printing machine. The present invention relates to a replenishing device for replenishing a group of replenishing workpieces formed by stacking workpieces.

For example, when a large number of sheets of paper are to be printed continuously by a printing machine, a predetermined number of sheets of paper are fed in layers to the feeding area of a paper feeding device such as a stream feeder attached to the printing machine. Then, a paper feeding device continuously supplies paper to be printed to the single-sheet printing machine, and a predetermined number of new papers to be printed are replenished into the supply action area according to the paper feeding situation. However, in the past, such replenishment work was performed manually every time the printing paper in the supply area was completely consumed.

Therefore, there is a risk that the paper feeding operation will become intermittent and the printing efficiency will decrease.

This is even more significant when the replenishment worker is an unskilled person who cannot perform the replenishment work quickly.

In addition, the replenishment work is extremely troublesome as it is necessary to align the edges of the group of printing papers to be replenished, and especially when the printing paper is thick such as cardboard, the replenishment work must be done frequently. This means that the workers have to carry out the work in a very harsh manner.

Note that this kind of problem occurs not only when printing a single sheet of paper, but also when printing thin plate-like workpieces using various processing machines, such as the board punching process using a punching machine or the vinyl pulling process using a vinyl drawing machine. The same problem occurs in the processing process.

This invention was made in view of the above points.

We provide a new replenishment device for thin plate-shaped workpieces that automatically replenishes the automatic supply device for workpieces as described above, thereby forcing the operator to perform troublesome replenishment work. This is intended to enable efficient continuous machining using various processing machines without causing problems.

Examples will be described below with reference to the figures.

In the figure, 1 is a printing machine, and 2 is a known paper feeding device such as a stream feeder that is biased to the rear of the printing machine 1. This paper feeding device 2 has a rectangular cover with an appropriate number of sheets in its feeding area 2a. When the printing papers 3, 3, etc. are supplied in layers, the suction port 6 descends and sucks the topmost printing paper 3, and at the same time, a strong wind is sent from the air outlet (not shown) behind the suction port 6. After separating it from the lower printing paper 3 (FIG. 3F), the suction port 6 moves forward and transfers it to the transfer band 7 (FIG. H) It is done as follows.

After the suction port 6 moves forward, it stops sucking the printing paper 3, rises, and then retreats again to prepare for the next paper feeding operation (G-I in the same figure).

Therefore, according to this paper feeding device 2, the feeding action area 2
The paper 3 to be printed is continuously and automatically fed to the single-sheet printing machine 1, and in this embodiment, the printing paper 3 is fed to the feed action area 2a of such a paper feeding device 2.

The present invention relates to a replenishing device 8 for automatically replenishing a group 4 of replenishing sheets 4 made up of a predetermined number of layers of sheets 3 to be printed.

This replenishing device 8 is connected to the rear of the paper feeding device 2, and according to the present invention, it has a rectangular mounting table 9 on which a large number of printing papers 3, 3, etc. are mounted in a layered manner. , an elevating mechanism 10 that raises and lowers the mounting table 9, and a take-out mechanism 11 that takes out the supplemented printing paper group 4 from the stored printing paper group 5 placed and stored on the mounting table 9.

a transport mechanism 12 that transports the replenishment paper group 4 taken out by the take-out mechanism 11 to the supply action area 2a;
Since it is constructed with an end face alignment mechanism 13 for aligning the end faces of, the configuration of each mechanism will be explained in detail below.

That is, the elevating mechanism 10 includes a pair of elevating and lowering chinos 14, 14 and 15, 15, each extending in the vertical direction, arranged at a predetermined distance from each other. 17 so that they can be driven together, and a mounting table 9 is horizontally connected and fixed to each chino 14 and 15.

Therefore, by rotating the motor 16 in the forward and reverse directions, the mounting table 9 can be raised and lowered.

The lifting mechanism 10 and therefore the motor 16 are controlled to raise and lower the mounting table 9 so that the upper surface of the stored printing paper group 5 is always positioned at a constant position as shown in FIG.

The take-out mechanism 11 is disposed above the lifting mechanism 10, and has a horizontal screw shaft 19 that extends horizontally in the front-rear direction and is communicatively connected to the forward/reverse motor 18, and is screwed into the screw shaft 19 in a suspended manner. It is configured with an L-shaped takeout body 20.

The take-out body 20 has a horizontal portion 20a shaped like a knife, and by rotating the motor 18 in the forward and reverse directions, the take-out body 20 is moved to a standby position (solid line position in FIG. 1) which is a rear position of the stored printed paper group 5.
and the removal end position (the chain line position in the figure), which is the forward position.

Note that the take-out body 20 is arranged so that the horizontal portion 20a is positioned below the upper surface of the stored printed paper group 5 located at a fixed position by an amount corresponding to the thickness of the supplied printed paper group 4.
Ru.

Reference numerals 21 and 22 are horizontal guide rods through which the extractor 20 is inserted and supported, and are used to allow the extractor 20 to reciprocate in a constant posture.

Therefore, according to the take-out mechanism 11, when the take-out body 20 is advanced from the standby position, the horizontal portion 20a digs into the rear end surface of the stored printed paper group 5, separates the supplied printed paper group 4, and The replenishment group of printed sheets 4 is pushed forward with the vertical portion 20b, and only the replenishment group of printed sheets 4 can be taken out from the stored group of printed sheets 5.

The take-out mechanism 11 and therefore the motor 18 are controlled so that when the take-out body 20 is advanced to the take-out end position, it is moved back to the standby position and stopped at that position. Then, the elevating mechanism 10 is operated.

In other words. After the replenishment paper group 4 is taken out by the take-out body 20, the time when the take-out body 20 is returned to the standby position.

The lifting mechanism 10 is activated, and the mounting table 9 is raised by an amount corresponding to the thickness of the replenishment paper group 4 that has been taken out, in preparation for taking out the first replenishment paper group 4 (Fig. 3). A-dashed line).

The transfer mechanism 12 also includes a first transfer band 23 that is disposed directly below and in front of the take-out mechanism 11 and is movable up and down;
a second transfer band 24 disposed in front of the second transfer band 2;
4, and holding rollers 26 to 30, each of which is movable up and down, are arranged in parallel just below the supply action area 2a of the paper feeding device 2.

The first transfer belt 23 transfers the machine frame 23a to the control box 3
1, the ejecting body 20 is screwed into a vertical screw shaft 32 interlockingly connected to a forward/reverse motor (not shown), and the start end of the ejecting body 20 is positioned at the ejecting end position by forward/reverse rotation of the screw shaft 32. A transfer position located directly below (solid line position in Figure 1) and a delivery position located a predetermined amount lower (chain line position in Figure 1)
It is designed so that it can be raised and lowered in a horizontal state, and the accompanying drive is performed by a motor 33 fixed to the machine frame 23a.

Neo, 34 is a guide support rod.

The second transfer band 24 has its starting end in close contact with the terminal end of the first transfer band 23 when located at the delivery position, and its terminal end faces the vicinity of the supply action area 2a, so that the second transfer band 24 is arranged horizontally in the front and back. It extends in the direction.

Note that 35 is a motor for driving the second transfer band 24 in rotation.

The movement auxiliary mechanism 25 has a suppressor 38 having a vertical portion fixed in a suspended manner to a chino 37 which is rotated and driven by a forward/reverse motor 36, and a single machine frame 25a is placed inside the control box 31.
is screwed into a vertical screw shaft 39 that is interlocked with a forward and reverse rotation motor (not shown), and by forward and reverse rotation of the screw shaft 39, the first
It is designed to be raised and lowered between a non-working position shown by solid lines and a working position shown by chain lines.

Note that 40 is a guide support rod.

Said first transport zone 23. The respective transfer speeds of the second transfer band 24 and the forward speed of the pressing body 38 are all matched with the forward speed of the extractor 20.

Further, the holding rollers 26 to 30 are arranged horizontally and in close proximity to each other in the transport direction of the replenished printing paper group 4 (in the upper left-right direction in FIG. 1), and each of them controls the support frame 41. They are screwed into vertical screw shafts 42 interlocked with a forward/reverse motor (not shown) in the box 31, and are raised and lowered individually by forward and reverse rotation of each screw shaft 42.

and the first transport zone 23. The lifting and lowering operations of the transfer assisting mechanism 25 and each of the holding rollers 26 to 30, and the transfer assisting mechanism 25
The forward movement of the pressing body 38 is controlled by appropriate control means as follows.

That is, when the take-out body 20 advances to the take-out end position and the replenishment paper group 4 is brought onto the first transport band 23, the transport operation of the first transport band 23 is first stopped, and then the take-out body 20 retreats and the horizontal portion 20a separates from the rear end of the replenishment paper group 4, the lowering operation of the first transfer band 23 starts, and when it is lowered to the delivery position, the transfer operation starts again. be done.

Then, when the replenishment paper group 4 to be printed is transferred from the first transport belt 23 to the second transport belt 24, the lowering operation of the transport assisting mechanism 25 is started, and the replenishment paper group 4 is transferred to the second transport belt 24. 24
When the rear end surface 4a is moved to a position directly below the vertical portion of the pressing body 38, the forward movement of the suppressing body 38 is started.

Further, when the pressing body 38 is advanced to the pressing end position (position E in FIG. 3), the chino 37 is rotated in the opposite direction and the pressing body 38 is retreated, and at the same time, the transfer assisting mechanism 2
5 is raised and returned to the non-operating position.

Further, all the holding rollers 26 to 30 are connected to the supply action area 2a.
In the initial state where there is no printing paper 3 at all, the standby position corresponding to the lower surface of the remaining printing paper group 4, that is, the standby position flush with the second transport band 24 (FIG. 1, third printing position) )
From this state, the holding rollers 26 to 30
When the replenishment paper group 4 of a predetermined thickness is supplied on top, the uppermost printing paper 3 of the replenishment paper group 4 is moved to position the replenishment paper group 4 in the supply action area 2a. In order to position it in the suction area of the suction port 6, the paper feeding start position (Fig. 3F
(solid line position).

Further, all the holding rollers 26 to 30 are intermittently raised by the thickness of the printing paper 3 each time the printing paper 3 is discharged from the feeding area 2a by the paper feeding device 2.

Each of the holding rollers 26 to 30 has a supply action area 2a.
When the remaining printing paper group 4 remaining in the storage area reaches a predetermined amount, that is, the distance between the lower surface of the remaining printing paper group 4 and the upper surface of the holding rollers 26 to 30 when positioned at the standby position is determined as described above. When the thickness matches the thickness of the supplied printing paper group 4, the second
They are sequentially lowered to the standby position in the order from the rearmost holding roller 26 to the foremost holding roller 30 with a time difference depending on the transfer speed of the transfer band 24 (and the forward speed of the suppressor 38).

In addition, the end face alignment mechanism 13 operates to control the left and right end faces 4b of the supplied printed paper group 4 brought onto the first transfer band 23 at the transfer position.
, 4b, a receiving plate 44 that receives the front end surface 4c thereof, and left and right end surfaces 4b, 4b of the replenishment printing paper group 4 transported by the second transport belt 24.
It consists of a parallel guide plate 45.45 that guides the replenishment paper group 4, and a receiving plate 46 that receives the front end surface 4c of the replenishment paper group 4 brought to the supply action area 2a.
The vertical portion 20b of the take-out body 20 that presses the rear end surface 4a and the vertical portion of the pressing body 38 also form a part of the end surface alignment mechanism 13.

The guide plates 43, 43 and 45, 45 are designed to align the left and right end surfaces 4b, 4b of the supplied printing paper group 4 by repeatedly hitting them in a pinching manner at very short time intervals. be.

That is, the cam 1 is vibrated forward and backward in the direction of the end surface 4b by means such as a cam 1 driving means (not shown).

Further, the distance between the receiving plate 44 and the take-out body 20 at the end position of taking out, and the distance between the receiving plate 46 and the suppressing body 38 at the end position of pressing are both made to match the front and back width of the replenishment paper group 40. It is being

Reference numeral 47 denotes a delivery guide plate, which guides the first transport band 2 of the supplied printing paper group 4.
This is to ensure that the transfer operation to No. 3 is performed well.

Next, the feeding operation of the replenishment paper group 40 will be explained with reference to FIG.

First, when the take-out body 20 is advanced from the standby position (the chain line position in Figure A), the horizontal portion of the take-out body 20 is placed on the rear end surface of the storage printing paper group 5 placed and stored on the mounting table 9 by a forklift or the like. 20a digs in and separates the replenishment paper group 4 of a predetermined thickness, and then removes the replenishment paper group 4 from the vertical portion 2 of the extractor 20.
The first transfer band 23 is pushed forward by 0b and the front end thereof is the first transfer band 23.
bring on top.

Furthermore, when the take-out body 20 is advanced to the take-out end position (the solid line position in Figure A), the replenishment paper group 4 is removed from the take-out body 20 and the first
It is moved forward by the cooperative transfer action of the transfer band 23, and its front end surface 4c collides with the receiving plate 44, and at the same time, the cooperative transfer action is stopped (Fig. A).

At this time, the supply paper group 4 has front and rear end surfaces 4a s4c
with the extractor 20 and the receiving plate 44, and the left and right end surfaces 4b,
With guide plates 43 and 43, 4b can be neatly aligned and not cluttered.

Then, when the take-out body 20 is moved backward and separated from the replenished printing paper group 4, the first transport band 23 is lowered to the delivery position and starts the transport action again (FIG. B).

At this time, when the take-out body 20 is returned to the standby position, the mounting table 9 is raised by the thickness of the removed replenishment paper group 4 to prepare for the take-out action by the primary take-out body 20 (dashed line in Figure A). ).

The supply paper group 4 is transferred from the first transport band 23 to the second transport band 2.
4 (Figure C), is transferred forward by the cooperative transfer action of the second transfer band 24 and the pressing body 38 of the transfer assisting mechanism 25 (Figure D), and is supplied onto the holding rollers 26 to 30. (
Figure E).

At this time, the supply paper group 4 has front and rear end surfaces 4 a 94
c includes the pressing body 38 and the receiving plate 46, and also the left and right end surfaces 4.
b and 4b are held on the holding rollers 26 to 30 in a well-aligned manner by guide plates 45, 45, respectively.

The transfer assisting mechanism 25 is returned to the non-operating position (the chain line position in figure D) and is ready for the next suppressing action.

Then, all the holding rollers 26 to 30 move up to the paper feeding start position (solid line position in Figure F), and the replenishing printing paper group 4 is positioned in the feeding action area 2a, that is, the uppermost printing paper 3 is placed at the suction mouth. 6, the paper feeding action by the paper feeding device 2 is started (FIG. F).

When the paper feeding operation is started, all the holding rollers 26 to 30 are raised according to the amount of paper fed, and at the same time, a new supply of printed paper group 4 is fed to the feeding operation area 2a through the above-described process. (Figure G).

Then, the remaining printing paper group 4 remaining in the supply action area 2a
When ' reaches a predetermined number of sheets, the rearmost holding roller 26 first descends to the standby position, and the front part of the new supply paper group 4 transferred from the second transport band 24 is placed in the remaining print paper group. 4' while being guided between the lower surface and the upper surface of the holding roller 26 (Figure H).

Furthermore, as the replenishment paper group 4 moves forward, the holding roller 2
7, 28, 29 and 30 are sequentially lowered to the standby position (dashed line in figure H), and finally the newly replenished printing paper group 4 is layered under the lower surface of the remaining printing paper group 4'. It is replenished (Figure 1).

At this time, the remaining printing paper group 4' is removed from each holding roller 2.
Even if the paper sheets 6 to 30 are lowered, they will be held as they are by the newly replenished paper group 4,
There is no need to worry about the feeding action being hindered by the replenishment action.

By repeating the above actions, the paper feed device 2
The paper feeding action is carried out continuously without interruption,
Printing efficiency is improved.

In addition, since the supplied printing paper group 4 is supplied to the supplying operation area 2a with the end faces aligned, the paper feeding operation can always be performed satisfactorily.

Of course, there is no need to go through the trouble of replenishing supplies.

Note that the replenishing device according to the present invention is not limited to the above-mentioned embodiments, and may include, for example, a mounting table 9. By positioning the lifting mechanism 10 and the take-out mechanism 11 at a lower position by an amount corresponding to the amount of descent of the first transfer band 23, the first transfer band 23
It is also possible to fix it at a position corresponding to the delivery position without raising or lowering it, and furthermore, the first transport belt 23 can be eliminated and the replenishment printed paper group 4 can be moved to the second transport belt 2 by the take-out mechanism 11.
4 can also be supplied directly.

In addition to the above-mentioned embodiments, the replenishing device according to the present invention can also be used for automatic feeding devices for thin plate-like workpieces attached to various processing machines such as punching machines and vinyl drawing machines. It is possible to achieve the same effect as described above.

In particular, when the thickness of the workpiece is thick, the effect becomes more remarkable.

As is clear from the above description, according to the thin plate-like workpiece replenishing device of the present invention, the workpiece is fed to an automatic feeding device such as a paper feeder attached to a processing machine such as a printing machine. Since it can be continuously and automatically replenished without requiring troublesome replenishment work, the machining efficiency of the 7IO machine can be improved and the intended purpose can be achieved.

Furthermore, according to the replenishing device of the present invention, the transport mechanism, particularly the holding roller group, replenishes the replenishment workpiece group under the lower surface of the workpiece group remaining in the supply action area, that is, the remaining workpiece group. This allows a new group of workpieces to be replenished while the workpieces remain in the supply action area, and the replenishment is carried out at a position that does not interfere with the supply action of the automatic feeder. Therefore, the above-mentioned feeding action is not hindered by replenishing the group of workpieces, and the workpieces can be continuously and efficiently fed to the processing machine by the automatic feeding device.

Furthermore, even when the workpiece is thin paper such as printing paper that is soft and easily bent, such paper can be replenished well.

In other words, the supply paper group, which is the group of replenishing workpieces, is fed between the bottom surface of the remaining paper group, which is the remaining workpiece group, and each holding roller that has been lowered to the standby position, so that the holding rollers do not reach the standby position. By being lowered, the remaining paper group portion, which cannot be directly held by the holding roller, does not bend downward, but remains fixed as it is with the supply paper group held under the lower surface. It will continue to be held in position and therefore good replenishment will occur even in the case of thin paper.

[Brief explanation of the drawing]

Figure 1 shows a partially cutaway side view of the replenishment device according to the present invention.
FIG. 2 is a partially cutaway plan view of the same, and FIGS. 3A to 3 are schematic side views showing the operating state. 1...Printing machine (7IO Koki), 2...
Paper feeding device (automatic feeding device), 2a... feeding action area, 3... printing paper (workpiece), 4...
...Replenishment printing paper group (replenishment wave carousel group), 4'...
...Remaining printing paper group (remaining workpiece group), 5...
...Storage printing paper group (storage workpiece group), 8...
... Supply device, 9... Placement table, 10, ...
・Lifting mechanism, 11... Removal mechanism, 12...
...transfer mechanism, 13...end face alignment mechanism, 26,
27, 28° 29.30...Holding roller.

Claims (1)

[Scope of Claim for Utility Model Registration] A replenishment workpiece consisting of a predetermined number of workpieces layered in a feeding area of an automatic feeding device capable of supplying thin plate-like workpieces one by one to an appropriate processing machine. A replenishment device for replenishing a group of workpieces, which includes a mounting table on which a large number of workpieces are placed in a layered manner, an elevating mechanism for raising and lowering the mounting table, and storage materials placed and stored on the mounting table. a take-out mechanism that takes out the replenishment workpiece group from the workpiece group; a transfer mechanism that transports the replenishment workpiece group taken out by the take-out mechanism to the supply action area; and a replenishment workpiece group in the transfer section by the transfer mechanism. The transfer mechanism includes a group of holding rollers that are arranged in parallel in the transfer direction of the supply workpiece group directly below the supply action area and that can be raised and lowered individually. When the number of remaining workpieces remaining in the supply action area reaches a predetermined amount due to the feeding action of the automatic feeding device, this group of holding rollers connects the lower surface of the group of remaining workpieces with each of the holding rollers. In order to allow the replenishment workpiece group to enter in a packed manner one after another, each holding roller is sequentially lowered in the entry direction to a standby position corresponding to the lower surface of the replenishment workpiece group. A replenishing device for thin plate-like workpieces.