JP3377593B2 - Printing paper identification method and apparatus for sheet-fed printing press - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing paper identification method and apparatus for a sheet-fed printing press.

[0002]

2. Description of the Related Art A conventional example will be described with reference to FIGS.

In FIG. 5, an automatic continuous sheet feeding device 4 provided with an automatic piled sheet mounting device 2 and a non-stop device (skewering device) 3 provided in a sheet feeding unit 1, sheets are wrapped and fed one by one. The feeder part 5 provided on the tip of the feeder boat 5 and the feeder board 5 and having the front hitting device 6 (see FIG. 6) and the horizontal needle 7 and the like. Biting the sheet to the single-cylinder intermediate cylinder 12 of the first-stage printing unit 9a, which is adjacent to the impression cylinder 10a on the upstream side, and passing it to the Suinig gripper 11, the two-stage impression cylinder 10a of the first-stage printing unit 9a. Eye printing unit 9b
The double cylinder intermediate cylinder 13 provided between the impression cylinder 10b and the impression cylinder 10b of the second-stage printing unit 9b, the discharge cylinder 14 of the sheet discharge section 15 and the sheet discharge section 15 which are adjacent to the impression cylinder 10b of the second-stage printing unit 9b. An automatic continuous sheet stacking device 17 having the non-stop device (skewer device) 16 provided, a pallet supply device 18 for supplying a pallet to the automatic continuous sheet stacking device 17,
Insertion device 19, quality inspection device 20, sheet excluding device 2 for excluding sheets judged to be defective by this quality inspection device
1 and an automatic piled sheet carry-out device 22.

In the figure, S is a sheet.

In the above, piled sheets a and b are stacked on the feed pallets A and B, respectively, and supplied to the automatic piled sheet mounting device 2. Next, the non-stop device 3 stacks the piled sheets a and b and sends them to the automatic continuous sheet feeding device 4.

After that, the sheet is sent to the sheet discharge section 15 through the feeder board 5, the first-stage printing unit 9a and the second-stage printing unit 9b. And the automatic continuous sheet stacking device 17
And was discharged by the automatic piled sheet unloading device 22.

In this way, when it is not necessary to divide the pallets A and B on which the piled sheets a and b are respectively placed,
Sheets are continuously supplied, printed and discharged from pallets A and B without stopping the printing machine. However, when it is necessary to divide the pallets A and B, when the supply of the piled sheets a on the pallets A is completed, the sheet supply unit is stopped first each time, and then, when the printing in each printing unit is completed, the upstream side is sequentially processed. The printing unit is pulled out from the printing unit (printing state). When the stacking of the sheets a onto the empty pallet A'supplied by the pallet feeder is completed in the sheet discharging section, the sheet discharging section is stopped each time, and the piled sheets a stacked on the pallet A'is discharged. To do. Next, the same process was performed for the piled sheet b on the pallet B.

[0008]

Even if the materials and sizes of the sheets used as containers such as cans are the same, if the suppliers of these sheets are different, the pallets on which the above-mentioned sheets are placed have two or more types depending on the suppliers. There will be. In this case, after the sheet has been commercialized and shipped to various destinations including overseas, if a problem occurs, it is obliged to trace it to the supplier of the sheet.

Therefore, when two or more types of pallets are used for one job, the above-mentioned limitation is imposed, and therefore the piled sheets on each pallet must be separated and taken out at the discharging section. However, in order to separate and take out the sheets, it is necessary to stop the sheet supply unit and the sheet discharge unit of the printing machine as described above, which takes time and the operating rate of the printing machine is significantly reduced.

[0010]

The present invention takes the following means in order to solve the above problems.

That is, (1) a plurality of piled sheets stacked on a plurality of feed pallets supplied by an automatic piled sheet mounting device provided in a sheet supply unit are superposed by an automatic continuous sheet supply device of a feeder. After that, the piled sheets are separated one by one and supplied to the printing unit, and after printing, on the multiple receiving pallets that are automatically supplied from the pallet supply device by the automatic continuous sheet stacking device installed in the sheet discharging unit. In a sheet-fed printing press that stacks the piled sheets on each of the above, and discharges the piled sheets with an automatic piled sheet unloading device, put a mark on the back surface of the uppermost sheet of the piled sheets on the plurality of feeding pallets, Sheets in which the plurality of piled sheets are stacked corresponding to each other on the plurality of receiving pallets by a mark. Printing paper identification method for printing machines. (2) After stacking a plurality of piled sheets on a plurality of feed pallets supplied by the automatic piled sheet mounting device provided in the sheet supply unit by the automatic continuous sheet feeder of the feeder, The sheets are separated one by one and supplied to the printing unit, and after printing, the piled sheets are respectively placed on a plurality of receiving pallets that are automatically supplied from the pallet supplying device by the automatic continuous sheet stacking device provided in the sheet discharging unit. In a sheet-fed printing machine that stacks sheets and discharges the piled sheets with an automatic piled-sheet unloading device, a mark detection unit that is provided on the upstream side of the printing unit and detects a back surface mark of the sheet, and the same mark Piled sheet stacking means for receiving the output of the detection means and stacking the corresponding piled sheets on the plurality of receiving pallets, respectively. With and becomes a sheet-fed printing press of the printing paper identification apparatus.

[0012]

(1) In the above-mentioned invention 1, after a plurality of feed pallets, for example piled sheets on A and B, for example, a and b, are piled up by an automatic continuous sheet feeder, the piled sheets are printed one by one. Is supplied to. At this time, the piled sheets a and b are discriminated from each other by the mark on the back surface of one sheet (the uppermost sheet of b) in the overlapping portion.

In response to this identification, the identified sheets are stacked on the receiving pallet, for example, B'after A '.

In this way, a plurality of feed pallets A,
After printing, the piled sheets a and b on B are accurately distinguished, stacked on the receiving pallets A ′ and B ′, and discharged. (2) In the above invention 2, a plurality of feed pallets, for example piled sheets on A and B, for example, a and b, are superposed by an automatic continuous sheet feeding device, and then the piled sheets are fed to the printing section one by one. It At this time, the mark on the back surface of one sheet (the uppermost sheet of b) in the overlapping portion is detected by the mark detecting means. Then, the piled sheets a and b are distinguished from each other.

Upon receipt of the output of the mark detecting means, the piled sheet stacking means stacks the identified sheets on the receiving pallet, for example, B'after A'in accordance with the above identification.

In this way, a plurality of feed pallets A,
After printing, the piled sheets a and b on B are accurately distinguished, stacked on the receiving pallets A ′ and B ′, and discharged.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. It should be noted that the parts described in the conventional example are denoted by the same reference numerals, and the description thereof will be omitted.

1 and 2, a color mark sensor 31 is provided below the lateral needle 7. A proximity switch 32 is provided below the front hitting device 6. These signals are sent to the control panel (program line control) 33.

The control panel 33 is provided with a counter 34 and an amplifier unit 35 for setting the detection sensitivity of the color mark sensor 31, and the sensitivity setting of the amplifier unit 35 is performed by a push button attached to the first-stage printing unit 9a. (Not shown). Reference numeral 36 in the figure is a touch panel.

In the above, if there are two suppliers, it is necessary to divide into pallet A and pallet B.

When the feed pallet A and the feed pallet B loaded with the piled sheets a and b are carried into the automatic piled sheet mounting device 2, the skew feeding device 3 sequentially feeds the automatic continuous sheet feeding device 4 from the device 2. The feed pallets A and B are inserted, and the piled sheet a of the feed pallet A overlaps the piled sheet b of the feed pallet B, and the boundary between them cannot be seen. This is the automatic continuous sheet feeder 4
When the piled sheets a loaded on the feed pallet A are fed to the feeder boat 5 one by one,
The skewer inserting device 3 having the same number of skewers (neither of which is shown) in a plurality of grooves provided on the upper surface of the feed pallet A is inserted into the groove of the pallet A, and when the pallet A descends, the piled sheet is formed. Only a is supported by the skewering device 3.
Then, when the pallet B on which the piled sheet b is placed is loaded and lifted up, and the upper surface of the piled sheet b comes into contact with the lower end surface of the piled sheet a, the skewer insertion device 3 is pulled out, and the piled sheet a overlaps with the piled sheet a. This is because.
In this way, the sheets are continuously supplied.

Piled sheet a where this boundary is no longer visible
In order to distinguish between the piled sheets a and b, a sheet having a rectangular color mark as shown in FIG. 3 on the back surface is placed on the top of each piled sheet a and b.

Input the number of pallets required to perform one job (printing) on the touch panel 36 of the control panel 33 (INP
UT) (see FIG. 4). Then, when the automatic continuous sheet feeding device 4 starts the continuous feeding of the sheets, there is one feeding source,
That is, when there is one pallet, the color mark sensing system 30 is turned off and does not operate. When there are two or more supply sources, the swing gripper 11 bites and carries the sheet registered by the front hitting device 6 and the like, transfers it to the single-body intermediate barrel 12, and then approaches the front hitting device 6 again. When the reciprocating swing is performed up to a position (a rotation angle per one rotation of the plate cylinder 36, for example, a position of 330 degrees), the proximity switch 32 is activated (ON). When the proximity switch 32 is turned on, the color mark sensor 31 is activated. When the color mark sensor 31 detects a color mark placed on the sheet, it sends a detection signal, and when this signal is received by the control panel 33, the counter 34 starts counting at the number of revolutions of the plate cylinder. In conjunction with this count, the sheet elimination device 2
1 starts to operate and the chain gripper 23
One or two sheets, including the sheet with the color mark, are removed from the sheet being conveyed at. While the sheets are being removed in this way, the skewer insertion device 16 having a plurality of skewers, which is a non-stop device, is automatically continuous sheet stacking device 1
The sheets a that have been sent to the conveyor 7 and carried by the chain gripper 23 one by one are supported temporarily. In parallel with this, a new receiving pallet A ′ having a plurality of grooves on the upper surface thereof is inserted into the sheet stacking device 17 from the pallet feeding device 18 like the skewer inserting device 3. When the new pallet A ′ rises and comes into contact with the skewer-inserting device 16, the skewer-inserting device 16 is pulled out, the sheets a are placed on the new pallet A ′, and the set number of sheets are stacked. Then, in the same manner as described above, the skew feeding device 16 is fed in and supports the next sheet b, so that the pallet A ′ on which the sheets a are stacked descends and is discharged by the automatic piled sheet discharging device 22. Then, the receiving pallet B'is inserted and discharged by the same process as described above.

Even if the sheet is stopped on the feeder board 5 due to an improper sheet supply or the like, the counter 34 of the control panel 33 outputs a signal from the color mark sensor 31 when the cause of the illegality is removed and the sheet is restarted. Receive, count and start. The above is the same as above.

As described above, the piled sheet a on the feed pallet A is printed on the receiving pallet A ', and the piled sheet b on the feed pallet B is printed on the receiving pallet B', and is surely discharged. To be done. Since these steps are performed automatically, work efficiency is significantly improved.

Further, since the sheets according to the supplier are surely classified, even if a problem occurs and the sheet supplier is traced to the sheet supplier after the sheets become the products and are shipped in various directions, the sheet may be traced. The source of supply can be accurately determined.

In the above description, for convenience of explanation, the feed pallet A,
B and the receiving pallets A'and B'are used, but the pallets have the same dimensional structure.

[0028]

As described above, according to the present invention,
In order to distinguish piled sheets on multiple feed pallets, a mark is placed on the back of the uppermost sheet of the piled sheets to identify them, so the printed piled sheets are surely divided and placed on the receiving pallets. Is discharged. Therefore, the piled sheets can be identified automatically, and the working efficiency is greatly improved.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention.

FIG. 2 is a detailed view of an X portion of FIG. 1 of the same embodiment.

FIG. 3 is an explanatory view of the operation of the embodiment.

FIG. 4 is a processing flowchart of the embodiment.

FIG. 5 is an overall configuration diagram of a conventional example.

FIG. 6 is a detailed view of a front retainer unit of the conventional example.

[Explanation of symbols]

2 Automatic piled sheet mounting device 3 Non-stop device (skewer) 4 Automatic continuous sheet feeder 6 Front hit device 16 Non-stop device (skewer) 17 Automatic continuous sheet stacker 18 Pallet feeder 21 Sheet rejecter 22 Automatic Piled sheet discharging device 31 Color mark sensor 32 Proximity switch 33 Program line control C. L.
Control panel 34 counter

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Claims (2)

(57) [Claims] 1. After stacking a plurality of piled sheets respectively stacked on a plurality of feed pallets supplied by an automatic piled sheet mounting device provided in a sheet supply unit by an automatic continuous sheet supply device of a feeder, The piled sheets are separated one by one and supplied to the printing unit, and after printing, by the automatic continuous sheet stacking device provided in the sheet discharging unit,
In a sheet-fed printing machine in which the piled sheets are stacked on a plurality of receiving pallets that are automatically supplied from a pallet feeding device, and the piled sheets are discharged by an automatic piled sheet unloading device, piled sheets on the plurality of feeding pallets A mark is placed on the back surface of the uppermost sheet of the sheet, and the plurality of piled sheets are stacked on the plurality of receiving pallets corresponding to each other by the mark, and the sheet is identified by the printing paper. Method. 2. After stacking a plurality of piled sheets respectively stacked on a plurality of feed pallets supplied by an automatic piled sheet mounting device provided in a sheet supply unit by an automatic continuous sheet supply device of a feeder, The piled sheets are separated one by one and supplied to the printing unit, and after printing, by the automatic continuous sheet stacking device provided in the sheet discharging unit,
In a sheet-fed printing machine in which the piled sheets are stacked on a plurality of receiving pallets that are automatically supplied from a pallet feeder, and the piled sheets are discharged by an automatic piled sheet unloading device, provided on the upstream side of the printing unit. And a piled sheet stacking unit for stacking the corresponding piled sheets on the plurality of receiving pallets, which receives the output of the mark detecting unit. A printing paper identification device for a sheet-fed printing press.