JP2007152771A - Number counting apparatus and number counting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a number counting apparatus which can count the number of spoilage on every spoilage generating factor. <P>SOLUTION: The number counting apparatus 1 stores in advance a table 110 on spoilage distributing conditions in which a plurality of spoilage generating conditions defining the spoilage generating factors (for example, paper linking) by one condition signal (for example, a paper linking signal) indicating conditions of respective parts of an offset rotary press or combination of a plurality of the condition signals, are described. Then, the condition signals inputted from the offset rotary press under operation are processed, and the number of printing papers used while the spoilage generating conditions described in the table 110 on the spoilage distributing conditions are satisfied, are counted by using an encoder signal detecting rotation of a folding cylinder. The number of the spoilage generated by the generating factors defined by the spoilage generating conditions are counted thereby. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an apparatus for use in production management of an offset printing press, and more particularly, to an apparatus for automatically counting the number of damaged papers for each occurrence of lost paper.

  It is indispensable to manage the number of sheets and waste paper in order to manage the production of offset web offset presses. Conventionally, the operator of web offset presses has been responsible for managing the number of sheets and waste paper. This is done by calculating the number of damaged paper dormitories from the number of printing papers displayed on the tray and the actual number of printed sheets, and recording them on a predetermined recording paper.

  However, if the quantity of printing paper displayed on the winding is an inaccurate value or if the operator manually controls the number, it will become a hindrance to production. The invention which performs is also disclosed (for example, patent document 1).

In the invention disclosed in Patent Document 1, a rotation speed signal generating mechanism (for example, an encoder) is attached to an offset rotary printing press to calculate the quantity of printing paper used by the offset rotary press and This is a device that calculates the number of sheets of normal paper from the palletizing signal of the palletizing robot to be carried out, and automatically calculates the number of lost paper from the number of printing sheets and the number of sheets.
JP-A-6-47904

  According to the invention disclosed in Patent Document 1, the rotation number signal generating mechanism is attached to the offset rotary printing press to calculate the exact quantity of printing paper used by the offset rotary press, and the offset rotary press. It is possible to calculate the correct number of sheets and the number of waste paper by calculating the number of sheets fed from the printing machine from the number bundled by the stacker bundler or the number loaded by the palletizing robot. The amount of waste paper that can be grasped by the technology is the total amount of waste paper in a certain item, and there is a problem that the amount of waste paper cannot be grasped for each cause of the waste paper (for example, paper splicing or blanket cleaning).

  In view of the above-mentioned problems, the present invention counts the exact number of printing paper used by the rotary offset printing press, and the quantity of broken paper for each occurrence of broken paper (for example, paper splicing or blanket washing). It is an object of the present invention to provide a number counting device and a number counting method.

  1st invention which solves the subject mentioned above is a number counting device which counts the quantity of waste paper generated during printing with an offset printing machine, and the number counting device shows the state of each part of an offset printing machine. One of the signals (status signal) or a logical combination of a plurality of the status signals is stored as a waste paper generation condition that defines the generation factor of the waste paper. By processing the status signal input from the printing press and counting the number of printing sheets used by the offset printing press while the lossy paper generation condition is satisfied for each of the lossy paper generation conditions, And a means for counting the number of waste papers corresponding to the waste paper generation conditions.

  In the first invention, the state signal indicating the state of each part of the offset printing machine indicates a folding clutch signal indicating that the folding cylinder of the folding part is rotating, and indicates that the printing cylinders are in contact with each other for printing. A plate joining signal, a paper splicing signal indicating that a paper splicing operation has been executed, a blanket cleaning signal indicating that the blanket cleaning machine is operating and blanket cleaning is being performed, and a paper break sensor installed in front of the drying section Out of paper signal indicating that a piece of paper has been detected, Reject signal indicating that the conveyor is in the rejected state and the folded printed material is being discharged into the trash can, It means a stavan signal indicating that there is.

  Further, the second invention is characterized in that in the number counting device according to the first invention, the number counting device comprises means for counting the total number of printing sheets used by the offset printing press. .

  Furthermore, a third invention is the number counting device according to the second invention, wherein the number counting device is configured to print a print quantity input from outside the number counting device and a printing paper used by the offset printing machine. It is characterized by comprising means for calculating the quantity of waste paper generated due to an occurrence factor for which the condition for generating waste paper is not defined, from the quantity and the quantity obtained by adding up the counted quantities of each waste paper. .

  Furthermore, a fourth invention is the number counting device according to any one of the first to third inventions, wherein the number counting means detects the number of rotations of one roller provided in the offset printing press. The number of printing sheets used by the offset printing machine is counted using an encoder signal.

  Further, the fifth invention is a number counting method for counting the number of waste paper generated during printing by an offset printing machine, wherein the number counting method is a signal (status signal) indicating the state of each part of the offset printing machine. 1) or a logical combination of a plurality of the status signals, a waste paper generation condition that defines the cause of the loss paper is determined in advance, and the status signal input from the operating offset printing machine is processed. By counting the number of printing sheets used by the offset printing machine for each lossy paper generation condition while the lossy paper generation condition is satisfied, the lossy paper corresponding to each of the lossy paper generation conditions is counted. It is characterized by counting the quantity.

  According to the present invention described above, the waste paper occurrence conditions are defined in advance for each cause of occurrence of the waste paper generated in the printing process, and the offset is performed while the state of each part of the offset printing machine matches the loss paper occurrence conditions. By counting the quantity of printing paper used by the printing press, the quantity of damaged paper can be automatically counted for each cause of occurrence of lost paper.

  Furthermore, by counting the number of printing paper used by the offset printing machine from the number of rotations of the offset printing machine, not only can the number of printing paper be accurately counted, but also the quantity of printing paper−the quantity of regular paper (the quantity to be printed) ) Can be obtained, or the total amount of waste paper generated due to an occurrence factor for which the waste paper generation conditions are not defined can be calculated.

  From here, the number counting device 1 installed to count the total amount of printing paper used in offset rotary printing and the number of lost paper for each occurrence of lost paper will be described with reference to the drawings. FIG. 1 is a diagram for explaining an offset rotary printing press 2 provided with a number counting device 1 according to the present invention.

  In the rotary offset printing press 2 shown in FIG. 1, after the tension of the printing paper supplied from the paper feeding unit 20 is adjusted by the infeed unit 21, the printing paper is printed by the four printing units 22a to 22d. The printed printing paper is dried by the drying unit 23, cooled by the cooling unit 24, cut by the folding unit 25, and discharged. The folded printing paper is conveyed to a stacker bundler (hereinafter referred to as a “stubber”) 28 by a conveyor 26 having a reject function for discharging the waste paper to the trash box 27, and is bound by a fixed quantity by the stubber 28.

  Each of the printing units 22a to 22d of the offset rotary printing press 2 is provided with a blanket cleaning device 34 which is a device for automatically cleaning the blanket. Further, the offset rotary press is separated from the main body of the offset rotary press 2. A printing press control panel 30 on which electrical equipment necessary for controlling the printing press 2 is installed, and a work table 31 for the operator of the offset rotary printing press 2 to remotely operate the rotary offset printing press 2 are installed. Yes.

  Further, the work table 31 is connected to the production management system 32 via the LAN 33 (Local Area Network), and information such as the production scheduled quantity for each item and print specifications is transmitted from the production management system 32 to the work table. Is done.

  FIG. 2 is a diagram for explaining waste paper generated in a series of steps of offset printing. In the completion process performed when the previous item is completed, in addition to filling in the form, blanket cleaning and replacement with a printing plate / printing paper used for the next item are performed.

  In this finishing process, the blanket cleaning waste paper generated by the blanket cleaning, the printed matter of the previous item remaining in the rotary offset printing press 2, the printing paper in the middle of printing, the defective printing paper after the printing paper replacement, etc. The waste paper is incompleted, and the waste paper is discharged to the trash box 27 by the reject function of the conveyor 26.

  When the printing completion process is completed, a printing process is performed. In this printing process, color matching work, such as register adjustment and color tone adjustment, and folding work, which matches the pattern and the folding position, are performed. Since defectives have occurred, all of the printed paper is lost, and the damaged paper is discharged to the trash box 27 by the reject function of the conveyor 26.

When the printing process is completed, the process proceeds to a printing process for printing regular paper. In this process, the regular paper is transported to the stavan 28 by the conveyor 26, and is bound by a predetermined quantity by the stavan 28.
However, several times to several tens of times of paper splicing (paster) are executed during printing of one item, and poor color tone and folding failure occur due to paper splicing. The paper is discharged to the trash box 27 by the reject function of the conveyor 26.

  In addition, if a certain amount of printing is performed during the printing process, ink or paper components are deposited on the blanket, and ink transfer failure occurs. Therefore, the blanket cleaning device 34 is provided each time a certain amount of printing is performed. A blanket cleaning operation is performed using this. The printed matter being blanket-cleaned cannot of course be a regular paper, so that the printed matter being blanket-washed becomes blanket-cleaning waste paper and is discharged to the trash bin 27 by the reject function of the conveyor 26. Then, when printing of the scheduled production quantity is completed, the above-described completion process is executed again.

  In addition to the above-mentioned damaged paper, various types of damaged paper are accidentally generated due to paper defects, operator error, and the like. For example, it is a splicing failure spoiled paper that occurs when a splicing fails during the printing process, or a spoiled paper breakage that occurs when the paper is cut due to poor drying in the drying section.

  As described above, in the operation state of the rotary offset printing press 2, waste paper is generated due to various factors. Therefore, the offset rotary printing press 2 shown in FIG. The number counting device 1 for counting the number of times is provided.

  The count device 1 receives a plurality of signals indicating the status of each part of the offset printing press (hereinafter, status signals) such as a pasta signal from the printing press control panel, and based on the input status signals, the offset rotary press 1 Automatically counts the total amount of printing paper used and the number of spoiled paper for each factor.

  1 is provided with an encoder 35 that detects the rotation of the folding cylinder 25a of the folding portion 25 so that the number counting device 1 counts the number of printing sheets used by the offset rotary printing machine 2. Then, an encoder signal output from the encoder 35 is input to the number counting device 1 via the printing press control panel 30.

  The number counting device 1 uses the encoder signal output from the encoder 35 to count the number of rotations of the offset rotary printing press 2 within a certain period, and the printing paper used by the offset rotary printing press 2 within a certain period. The quantity (for example, the number of sheets in the B horizontal overall) is counted.

  Further, the number counting device 1 is a waste paper generation condition in which a cause of a waste paper (for example, paper splicing) is defined by one state signal indicating a state of each part of the offset printing machine 2 or a combination of a plurality of state signals. Is stored, the status signal input from the active rotary offset press 2 is processed, and the amount of printing paper used while the defined waste paper generation conditions are satisfied is counted, thereby generating waste paper. Count the amount of waste paper generated by the generation factors defined in the conditions.

  The number counting device 1 stores a waste paper distribution condition table in which a plurality of waste paper generation conditions such as blanket cleaning and paper splicing are described, and each loss paper generation condition described in the loss paper distribution condition table 110 is stored. By counting the number of printing papers used when established, it is possible to add up the number of lost papers for each occurrence factor defined in the lost paper generation conditions.

  FIG. 3 is a block diagram of the above-described number counting device 1. In the present embodiment, the number counting device 1 is realized by using a sequencer, and the number counting device 1 includes a multi-contact input interface 12, an output interface 13 to a computer, a calculation unit 10, and a program unit 11. Yes.

  The number counting device 1 counts the total quantity of printing paper used per item and the quantity of waste paper from a plurality of status signals, encoder signals, completion signals and production quantities, and each quantity counted. Is output from the output interface 13.

  In the present embodiment, the input interface 12 of the number counting device 1 rotates the folding cylinder 25a of the folding unit 25 as a status signal indicating the state of each part of the offset rotary printing press 2, and the offset rotary printing press 2 receives paper. The folding clutch signal indicating that the paper is being fed, the plate cylinder attachment signal indicating that the printing cylinders are in contact with each other, printing, the paper splicing signal indicating that the paper splicing operation has been performed, and the blanket cleaning device 34 are activated. A blanket cleaning signal indicating that blanket cleaning is being performed, a paper out signal indicating that a paper out sensor installed in front of the drying unit 23 detects paper out, the conveyor 26 is folded in a rejected state. Reject signal indicating that the printed material is being discharged into the trash bin 27, indicating that the stub 28 is counting and binding the book. Tavan signal is input.

  Further, in addition to the above-described status signal, an encoder signal indicating the rotation of the folding cylinder 25a of the folding unit 25 and the offset rotary printing press 2 that the printing of the scheduled production quantity is completed and the printing plate may be replaced are notified. Therefore, a completion signal indicating that the operator has pressed the completion button and a production scheduled quantity from the work table 31 are input to the input interface 12 of the number counting device 1.

  Note that these signals input to the input interface 12 of the number counting device 1 are only examples of signals input to the input interface 12 of the number counting device 1. A signal to be input to the number counting device 1 is selected according to the type of waste paper to be counted, and if necessary, a device that generates a signal such as a sensor / inspection machine is installed in the offset rotary printing press 2.

  The calculation unit 10 of the number counting device 1 refers to a status signal input to the input interface 12 and counts the number of printing sheets used while the predetermined loss occurrence condition is established in the program unit 11. Then, when printing of one item is completed, information such as the number of damaged paper generated under each loss paper generation condition and the total amount of printing paper used for one item is output via the output interface 13 to the work table 31. Output to etc.

  The program unit 11 stores a broken paper distribution condition table 110 in which a plurality of broken paper generation conditions serving as conditions when the calculation unit 10 counts broken paper are described. In the present embodiment, since the number counting device 1 is realized by a sequencer, all the loss paper generation conditions included in the loss paper distribution condition table 110 are represented by a ladder diagram. When the number counting device 1 is realized by a general computer, the waste paper sorting condition table 110 may be stored in a data table format.

  FIG. 4 is a diagram showing an example of the waste paper sorting condition table 110 stored in the program unit 11. In the waste paper distribution condition table 110 of FIG. 4, the waste paper generation conditions defining the completion of printing, printing, paper splicing, blanket cleaning, paper breakage, and paper splicing failure as the cause of spoilage, and offset rotary printing. The conditions for counting the total amount of printing paper used by the machine 2 are defined, and the number counting device 1 refers to the waste paper distribution condition table 110, so that the waste paper has finished printing, the printing waste paper, the paper Each quantity of splicing paper, blanket washing spoilage paper, paper breakage spoilage paper and splicing failure spoilage paper, and the total amount of printing paper used by the offset rotary printing press 2 can be counted.

  One loss paper generation condition included in the loss paper distribution condition table 110 includes a status signal selected to define a cause of the loss paper, and an input condition (positive logic or negative logic) of the selected status signal. Defined by

  FIG. 5 is an example of a ladder diagram for counting the total amount of printing paper used by the rotary offset printing press 2. According to the waste paper distribution condition table 110 of FIG. 4, the status signal used for the condition for counting the total amount of printing paper used by the offset rotary printing press 2 is only the folding clutch signal (positive logic). Therefore, the number counting device 1 counts the number of printing sheets used while the folding clutch signal is ON as the total number of printing sheets used by the offset rotary printing press 2.

  FIG. 6 is an example of a ladder diagram for counting blanket cleaning waste paper generated by blanket cleaning. The status signals used to define the paper loss occurrence conditions for blanket cleaning waste paper are the folding clutch signal (positive logic), plate cylinder landing signal (negative logic), blanket cleaning signal (positive logic), and paper out signal (negative logic). Therefore, when the folding clutch signal is ON, the plate cylinder wearing signal is OFF, the blanket cleaning device signal is ON, and the paper breakage sensor signal is OFF, the number counting device 1 The quantity of printing paper used in the printing machine 2 is counted as blanket cleaning waste paper.

  From here, the operation of counting the number of lost papers based on the loss paper distribution condition table 110 by the number counting device 1 will be described in detail. FIG. 7 is a diagram for explaining the contents of counting the total number of printing paper used, printing waste paper, blanket cleaning paper loss, and paper splicing paper used in one item.

  As shown in FIG. 7, since the completion signal indicates that the printing of the scheduled production quantity has been completed and the printing plate may be replaced, the total amount of printing paper and the amount of damaged paper in one item are indicated. The quantity is counted between the completion signal and the completion signal.

  As described above, the total amount of printing paper used in one item is the number of printing papers counted in the section where the folding clutch signal is ON, that is, section A1 and section A2.

  Further, according to the waste paper sorting condition table 110 shown in FIG. 4, the number of incomplete printing waste papers is the folding clutch signal is ON, the plate cylinder signal is OFF, the paper splicing signal is OFF, and the blanket. This is the number of print sheets counted in the sections where the cleaning signal is OFF, the paper-out signal is OFF, and the stavan signal is OFF, that is, the sections B1, B2 and B3.

  In addition, according to the waste paper sorting condition table 110 shown in FIG. 4, the number of printed out waste papers is as follows: folding clutch signal is ON, plate cylinder signal is ON, paper splicing signal is OFF, and blanket This is the number of print sheets counted in the section where the cleaning signal is OFF, the paper-out signal is OFF, and the STABAN signal is OFF, that is, the section D1.

  Further, according to the waste paper sorting condition table 110 shown in FIG. 4, the number of blanket cleaning waste papers is as follows: the folding clutch signal is ON, the plate drumming signal is OFF, the blanket cleaning signal is ON, and the paper is out of paper. This is the number of print sheets counted in the section where the sensor signal is OFF, that is, the section C1.

  Further, according to the waste paper sorting condition table 110 shown in FIG. 4, the number of spliced paper splices is as follows: the folding clutch signal is ON, the splicing signal is ON, the blanket cleaning signal is OFF, and the paper is out of paper. This is the number of print sheets counted in the section where the signal is OFF, the reject signal is ON, and the stubbin signal is ON, that is, the section E1.

  In this way, if the waste paper generation condition is determined for each cause of the loss paper, the number of paper loss when the loss paper generation condition is satisfied can be automatically counted and fed back to the improvement of work or the like. .

  In some cases, the total amount of printing paper used may not be reached even when the total amount of waste paper counted is added to the planned production quantity input from the work table 31 or the production management system 32. This is because the waste paper is generated by the operator to check the quality of the printed matter, or because of the occurrence factor for which the paper loss generation condition is not set. The quantity of printing paper calculated by (total quantity) may be recorded as other waste paper.

  Moreover, although not shown in the offset rotary printing press 2 of FIG. 1, when the pattern inspection apparatus is provided in the offset rotary printing press 2, a signal to be transmitted when the pattern inspection apparatus determines that it is defective, If the number is input to the number counting device 1, the number of printed matter that the pattern inspection device has failed can also be counted.

  Furthermore, in the present embodiment, the quantity of regular paper input to the number counting device 1 is set as the production scheduled quantity input from the work table or the production management system 32. The number of printing papers bound by the stuban 28 or the quantity of palletized printing papers can be input to the number counting device 1, and the number counting device 1 can obtain the number of regular papers from these quantities.

The figure explaining the rotary offset printing press provided with the number counting apparatus. The figure for demonstrating the waste paper which generate | occur | produces in a series of processes of offset printing. The block diagram of a number counting device. The figure which showed an example of the waste-paper distribution condition table. An example of a ladder diagram for counting the total amount of printing paper. An example of a ladder diagram for counting blanket cleaning waste paper. The figure explaining the count content of the total amount of printing papers, such as a printing waste paper, a printing paper loss.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Counting device 10 Calculation part 11 Program part 110 Scrap paper distribution condition table 12 Input interface 13 Output interface 2 Web offset press 25 Folding part 25a Folding cylinder 26 Conveyor 28 Stacker bundler (Stavan)
34 Blanket cleaning device 35 Encoder for detecting rotation of folding cylinder

Claims (5)

  A number counting device for counting the number of waste paper generated during printing by an offset printing machine, wherein the number counting device is one or a plurality of signals (status signals) indicating the status of each part of the offset printing press In this case, the condition for generating the lost paper is stored in a logical combination of the status signals, and the number counting device further processes the status signal input from the operating offset printer. By counting the number of printing sheets used by the offset printing machine for each lossy paper generation condition while the lossy paper generation condition is satisfied, the lossy paper corresponding to each of the lossy paper generation conditions is counted. A number counting device comprising means for counting quantities.   2. The number counting device according to claim 1, wherein the number counting device comprises means for counting the total amount of printing paper used by the offset printing press.   3. The number counting device according to claim 2, wherein the number counting device includes a scheduled print quantity input from the outside of the number counting apparatus, a quantity of printing paper used by the offset printing machine, and each counted number of damaged paper. A number counting device comprising means for calculating the number of waste paper generated due to an occurrence factor for which the waste paper generation condition is not defined, from the total number of papers.   4. The number counting device according to claim 1, wherein the number counting means uses an encoder signal for detecting the number of rotations of one roller provided in the offset printing machine. Counting device, which counts the quantity of printing paper used. A quantity counting method for counting the number of waste paper generated during printing by an offset printing machine, wherein one of a signal (status signal) indicating the status of each part of the offset printing machine or a logic of a plurality of said status signals A waste paper generation condition that defines a cause of the generation of a waste paper in a specific combination, processes the status signal input from an operating offset printing machine, and generates the waste paper generation condition for each of the paper loss generation conditions. Counting the number of printing paper used by the offset printing machine while the above is established, thereby counting the number of broken paper corresponding to each of the above-mentioned lossy paper generation conditions.

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