JP3600488B2 - Paper feed unit presetting method and apparatus for printing press - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides a sheet-fed offset printing press, in particular, separation air supply means for separating paper stored in a paper feed pile by air pressure, air separation means for separating the paper sheet by sheet, and The present invention relates to a method and an apparatus for presetting a sheet feeding unit in a sheet-fed offset printing press having a sheet feeding unit including a sheet feeding unit including a unit for feeding the printing unit to a printing unit.
[Prior art]
[0002]
FIG. 5 is a configuration diagram schematically showing the overall configuration of the sheet-fed offset printing press. In FIG. 5, reference numeral 200 denotes a printing unit provided for each printing ink, 100 denotes a paper feeding unit that supplies the printing paper 1 stored in the paper feeding pile 2 to the printing unit 200, and 300 denotes the printing unit. A paper discharge unit for drying and discharging the printed matter printed at 200.
[0003]
The printing unit 200 provided for each printing ink includes an ink supply device (not shown) corresponding to the printing ink, a plate cylinder 14 on which a printing plate is wound, and a printing plate from the ink supply device. Is transferred to the impression cylinder 5 via the blanket cylinder 6, and the paper supplied from the paper supply unit 100 is conveyed by the claw (not shown) of the impression cylinder 5 and the intermediate cylinder 7 while pressing. The ink is received from the blanket cylinder 6 on the cylinder 5, printed, and sent to the paper discharge unit 300. 9 is a paper guide.
[0004]
The paper feed unit 100 separates the paper stored in the paper feed pile 2 one by one, puts it on the feeder board 3, and regulates the position of the rear end of the paper with the flywheel 24 provided on the feeder board 3. Then, after the registration section 400 performs vertical and horizontal positioning, the paper is accelerated to a printing speed and supplied to the printing section 200 via the first intermediate cylinder 15.
[0005]
The paper discharge unit 300 receives the printed material printed by the printing unit 200 by the paper discharge cylinder 8, conveys the paper on the paper guide 91 from the paper discharge cylinder 8, and stacks the paper on the paper discharge pile 12. ing. In the paper discharge unit 300, only the leading portion of the printed matter (paper) is pinched, and the flutter is likely to occur. Therefore, the paper guide 91 and the fan 10 for blowing air to the paper 1 are put in place. In addition, there is provided a vacuum wheel 11 for sucking from inside and decelerating in order to apply a brake to the running paper when the papers 1 are stacked on the paper discharge pile 12. Further, a dryer 13 for drying the paper 1 after printing is provided.
[0006]
[Problems to be solved by the invention]
In such a conventional sheet-fed offset printing press, the paper stored in the paper feed pile 2 is separated by the air from the separation air supply means in the paper supply section 100, and the paper from the separation air supply means is separated by the air from the separation air supply means. Separation is performed for each sheet, and the sheet is fed to the printing unit by using a means such as suction on the feeder board 3 by a vacuum suction means. The separation air supply amount of the separation air supply means and the separation of the separation air supply means are determined. The presetting of the air supply amount or the vacuum pressure of the vacuum suction means is manually performed on the basis of the paper thickness and upper dimensions based on the experience and intuition of the operator.
[0007]
For this reason, in the related art, although the preset value of the adjustment item varies depending on the paper type, paper basis weight, paper stiffness, etc., only the paper thickness and paper size are used as described above. Therefore, it is difficult to perform high-precision presetting, and it is necessary to make adjustments in consideration of the paper type, paper basis weight, paper rigidity, and the like while checking the paper supply state at the start of a printing operation. Such adjustments result in wasteful consumption of paper for the adjustment, and wasteful work time for the adjustment work, resulting in waste of materials and reduction in printing efficiency.
[0008]
In view of the problems of the related art, the present invention makes it possible to accurately perform presetting of adjustment items of a paper feeding unit by incorporating necessary paper characteristics, thereby eliminating the need for adjustment work at the time of printing work, and An object of the present invention is to provide a method of presetting a paper feed unit of a printing press that can avoid waste and improve the efficiency of a printing operation.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention, as an invention according to claim 1, separates paper stored in a paper storage unit one by one by paper separation air from a separation air supply nozzle , puts it on a feeder, and puts it on a printing unit. in the produced paper feeding unit preset method of printing machines in the sheet feeding apparatus to pump,
And paper separating air amount setting table the relationship between the air amount of the paper separating air ejected paper stiffness parameter G ₁ and from the separation air supply nozzle is set for each paper type,
Paper separation air adjusting means for adjusting the paper separation air supplied to the paper separation air supply nozzle based on a preset amount of the paper separation air amount obtained from the table value;
Paper quality data input means comprising a paper quality data input unit for each of the paper type, basis weight, paper size, and paper size of the paper;
A paper thickness setting unit for inputting the basis weight value input from the input means into a relationship diagram between the basis weight Y and the paper thickness T and calculating paper thickness data corresponding to the weighed value ;
Estimating the elastic modulus E of the corresponding paper from the relationship between the basis weight Y and the elastic modulus E set for each paper type;
Calculating a stiffness G from the elastic coefficient E and the paper thickness data T calculated by the paper thickness setting unit;
And stiffness G the calculated, calculating a stiffness parameter G ₁ by the vertical dimension of the air density w and paper L,
The paper separating air amount setting table, by entering the paper type of the paper to be printed the calculated rigid parameters G _1, selects the preset amount of paper separating air amount corresponding to the input value of the paper quality data The present invention proposes a paper feed unit presetting method for a printing press, comprising:
[0010]
According to a fifth aspect of the present invention, there is provided an apparatus for carrying out the first aspect of the invention, wherein the paper stored in the paper storage section is separated one by one by air ejected from a separation air supply nozzle . in the printing machine having a configured feeding equipment to pump the printing unit put on the feeder,
And paper separating air amount setting table the relationship between the air amount of the paper separating air ejected paper stiffness parameter G ₁ and from the separation air supply nozzle is set for each paper type,
Paper separation air adjusting means for adjusting the paper separation air supplied to the paper separation air supply nozzle based on a preset amount of the paper separation air amount obtained from the table value;
Paper quality data input means comprising a paper quality data input unit for each of the paper type, basis weight, paper size, and paper size of the paper;
A paper thickness setting unit that inputs the basis weight value input from the input unit into a relationship diagram between the basis weight Y and the paper thickness T and calculates paper thickness data corresponding to the weighed value ;
An elastic modulus calculating unit for estimating the elastic modulus E of the corresponding paper from the relationship between the basis weight Y and the elastic modulus E set for each paper type;
A stiffness calculating unit that calculates a stiffness G based on the elastic coefficient E and the paper thickness data T calculated by the paper thickness setting unit;
And rigidity G calculated by the rigid calculation unit, by the vertical dimension of the air density w and paper L and stiffness parameter calculation unit for calculating a stiffness parameter G ₁ comprises,
The paper separating air amount setting table, by inputting the paper type of the paper to be printed and stiffness parameters G ₁ than the stiffness parameter calculation unit, a preset value of the paper separating air amount corresponding to the input value is determined And a feeder preset device for a printing press.
[0011]
According to this invention, the separation air supplied by the separation air supply means based on the paper type, basis weight, paper size and paper quality data of the paper to be printed, and the rigidity of the paper calculated from the paper quality data. The adjustment items of the paper feeding unit, including the air amount of the air, the air amount of the air to be supplied by the air supply unit, and the vacuum pressure for sucking the paper by the vacuum suction unit, are added to the paper quality data and the rigidity of the paper. A preset amount corresponding to the input value of the adjustment item is calculated using a preset setting table in which the preset amount of the adjustment item of the paper feeding means is set based on the preset amount. Can be preset.
[0012]
Further, according to the invention, the relationship between the amount of air separation air ejected from the stiffness parameter and separating the air supply means of the paper is set to the separating air supply amount setting table for each sheet type, sheet of paper printed When the seed and the rigidity parameter are input, a preset value of the separated air supply amount corresponding to the input value is obtained from the separated air supply amount setting table.
Therefore, according to the present invention, the amount of separation air ejected from the separation air supply means can be preset with high precision to a value adapted to the rigidity and paper type of the paper.
[0013]
According to a second aspect of the present invention, there is provided the paper feeder according to the first aspect,
A separation air supply amount setting table from which a preset amount of the separation air supply amount is selected based on the basis weight and the paper type, and the sheet feeding by the air corresponding to the preset amount of the separation air supply amount obtained from the table value. An air supply means for separating the paper stored in the paper storage unit one by one in the apparatus;
In addition to the steps described in claim 1, a step of selecting a preset amount of the separation air supply amount corresponding to the input value from the separation air supply amount setting table by inputting the basis weight and the paper type is provided. It is characterized by the following.
[0014]
According to this invention, the relationship between the basis weight of the paper and the amount of the separation air supply for the separation of the paper ejected from the separation air supply unit is set in the separation air supply amount setting table for each paper type and printed. When the paper type and the basis weight of the paper are input, the preset air supply amount preset value corresponding to the input value is determined from the determination air supply amount setting table.
Therefore, according to the invention, it is possible to preset the amount of the separation air ejected from the separation air supply unit to a value suitable for the basis weight and the paper type of the paper with high accuracy.
[0015]
According to a third aspect of the present invention, there is provided the paper feeder according to the first aspect,
A vacuum pressure setting table in which a preset amount of vacuum pressure is set based on the paper type and weighing, and the paper is sucked into the paper feeding device by air corresponding to the preset amount of vacuum pressure obtained from the table value. providing a vacuum suction means for conveying put on the feeder, in addition to the steps of claim 1, wherein, by inputting the paper type and basis weight, from the vacuum pressure setting table, vacuum pressure corresponding to the input value characterized in that comprises the step of selecting the preset amount.
[0016]
According to this invention, the relationship between the basis weight of the paper and the vacuum pressure for sucking the paper by the vacuum suction means is set in the vacuum pressure setting table for each paper type, and the paper type of the paper to be printed and the paper When the basis weight is input, a preset value of the vacuum pressure corresponding to the input value is obtained from the vacuum pressure setting table.
Therefore, according to the invention, the vacuum pressure for paper suction by the vacuum suction means can be preset with high accuracy to a value adapted to the basis weight and paper type of the paper.
[0017]
According to a fourth aspect of the present invention, there is provided the paper feeder according to the first aspect,
Based on the rigidity G, a preset value of the pressing pressure of the roller pressing means is set in a roller pressing pressure setting table, and the paper being transported is pressed with a pressing pressure corresponding to the preset amount of the pressing pressure. Prepare brush roller pressing means to press ,
In addition to the claim 1, wherein the step, the paper type and from the Hakekoro pressing pressure setting table by entering the rigidity G, the paper type and the preset corresponding brush rollers contact pressure to the input value of the elastic modulus A step of selecting an amount.
[0018]
According to this invention, the relationship between the rigidity of the paper and the pressing pressure on the paper by the roller is set in the roller pressing pressure setting table for each paper type, and the paper type of the paper to be printed and the paper of the paper are set. When the stiffness is input, a preset value of the roller pressing pressure corresponding to the input value is obtained from the roller pressing pressure setting table.
Therefore, according to the invention, it is possible to preset the pressing pressure on the paper by the brush with a value that is adapted to the rigidity and the paper type of the paper with high accuracy.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail using embodiments shown in the drawings. However, unless otherwise specified, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention thereto, but are merely illustrative examples. It's just
[0020]
FIG. 1 is a control block diagram of a sheet feeding unit preset device of a sheet-fed offset printing press according to an embodiment of the present invention, FIG. 2 is a configuration diagram showing an example of a separation air amount setting table, and FIG. FIG. 4 is a side view of the sheet feeding unit, illustrating a configuration of another example of the table. 1 and 4, reference numeral 100 denotes a paper feeding unit, which is disposed upstream of the printing unit 200 and the register unit 400, as shown in FIG. 5, and supplies printing paper to the printing unit 200. . In FIG. 4 showing the details of the paper feeding unit, reference numeral 2 denotes a paper feeding pile in which printing papers 1 are stacked and stored. Reference numeral 21 denotes a separator, which is connected to a separation air supply nozzle 23 for supplying air for paper separation and a separation air supply nozzle 22 for supplying air for paper separation, and a soccer 21a is mounted at a lower portion. .
[0021]
26 is a vacuum suction belt, 25 is a vacuum unit for sucking the vacuum suction belt 26, 24 is a flywheel that presses the paper running on the vacuum suction belt 26 at a constant pressure, and 27 is an forehead.
[0022]
In the paper feed unit 100, the paper 1 stored in the paper feed pile 2 is separated by the air from the separation air supply nozzle 22, and the paper is separated one by one by the air from the separation air supply nozzle 23. Further, it is sucked by the vacuum suction belt 26 of the feeder 3 and sent to the printing unit 200 via the front contact 27 and the register 400. The configuration of the paper feeding unit 100 described above is the same as in the related art.
[0023]
In the present invention, a method and an apparatus for presetting the adjustment items in the paper feeding unit 100 are improved.
[0024]
That is, in FIG. 1 showing a control block diagram of a preset device for such adjustment items, reference numeral 30 denotes paper quality input means which is configured as follows.
[0025]
Reference numeral 31 denotes a paper type input unit for inputting a paper type such as coated paper or high-quality paper; 32, a basis weight input unit for inputting a paper basis weight; An eye input unit, 34 is a paper size input unit (A) for inputting the vertical dimension of the paper, and 35 is a paper size input unit (B) for inputting the horizontal dimension of the paper.
[0026]
The paper quality data from the paper quality input means 30 is input to the preset amount setting means 40. In the preset amount setting means 40, reference numeral 39 denotes a paper thickness setting unit. The basis weight is input from the basis weight input unit 32, and as shown in FIG. , you obtain the paper thickness T ₁ corresponding to該坪amount Y ₁ which is input (set). Numeral 36 denotes an elasticity coefficient calculating unit which inputs the paper type from the paper type input unit 31, the paper type (vertical or horizontal) from the paper type input unit 33, and the basis weight from the basis weight input unit 32. At the same time, the paper thickness set by the paper thickness setting unit 39 is input.
[0027]
The elastic coefficient calculating section 36 calculates the elastic coefficient E of the paper 1 by the following two means.
[0028]
In the first means, as shown in FIG. 7, an elastic coefficient corresponding to the basis weight Y ₁ and paper type input from the relational diagram between the set basis weight Y and the elastic modulus E for each paper type the E ₁ determined (estimated).
[0029]
In the second means, (estimates) obtaining the elastic modulus E ₁ by the following procedure. First, as shown in FIG. 8 (A), a sound wave is applied from a negative end of the paper 1 by a sound source, the sound wave is received by a microphone placed at the other end of the paper 1, and the time required for sound wave propagation is measured. The sound velocity is calculated from the required sound wave propagation time and the distance between the sound source and the microphone.
[0030]
The following equation is established between the elastic coefficient E, the sound velocity U, and the density q of the paper.
Elasticity coefficient E = c (q × (U) ² )
Here, c is a proportional constant.
[0031]
On the other hand, since there is a relationship of q = Y / T between the density q and the basis weight Y and the paper thickness T, the measured value of the sound velocity U and the input values of the basis weight Y and the paper thickness T , The sound velocity data V: (Y / T) × (U) ² is calculated. The elastic coefficient corresponding to the input sound velocity data V ₁ is obtained from the relationship between the elastic velocity E and the sound velocity data V and the grain direction (vertical or horizontal direction) shown in FIG. the E ₂ determined (estimated).
[0032]
Next, reference numeral 37 denotes a rigidity calculating unit. The rigidity calculating unit 37 calculates the elasticity coefficient E calculated by the elasticity coefficient calculating unit 36 and the paper thickness T set by the paper thickness setting unit 39. The rigidity G is calculated by the following equation.
Rigidity G = E × (T) ³ (1)
[0033]
Reference numeral 38 denotes a stiffness parameter calculation unit. The stiffness parameter calculation unit 38 calculates the stiffness G calculated by the stiffness calculation unit 37, the air density w, and the vertical dimension of the paper input from the paper size input unit (A). by the L, we calculate the stiffness parameter G ₁ by the following equation.
Stiffness parameter G ₁ = G / (w × L ³ ) (2)
That is, in the embodiment of the present invention, the stiffness of the paper 1 is proportional to the cube of the paper thickness T and inversely proportional to the cube of the length of the paper. defines a stiffness parameter G ₁ as.
[0034]
Reference numeral 41 denotes a separation air amount setting table. The separation air amount setting table 41 includes a stiffness parameter G ₁ calculated by the stiffness parameter calculation unit 38 and a paper type used for printing from the paper type input unit 31. Are respectively input. The in separating air amount setting table 41, the relationship between the amount of air separation air ejected from the stiffness parameter G ₁ and the separation air supply nozzle 22 of the paper 1 is set for each paper type.
2 and 3 show examples of the configuration of the separation air amount setting table 41. FIG. 2 shows the setting table 41 of the analog display, in which the classification of the rigidity parameter and the amount of separated air corresponding thereto are set for each paper type such as coated paper, high quality paper, and paperboard.
FIG. 3 is a digitally-displayed setting table 41 in which a rigidity parameter and a range of a separated air amount corresponding to the rigidity parameter are digitally displayed for each paper type.
Thus, as described above, if the paper type of the paper to be printed and the stiffness parameter G ₁ is inputted, from said separating air amount setting table 41, the preset value of the separation air amount corresponding to the input value Is required.
[0035]
The separation air amount is input to the separation air amount adjustment unit 51, and the separation air amount adjustment unit 51 sets the separation air amount ejected from the separation air supply nozzle 22 to the preset value. Therefore, the amount of separation air ejected from the separation air supply nozzle 22 is preset with a high degree of accuracy to a value adapted to the rigidity and paper type of the paper.
[0036]
Reference numeral 42 denotes a separation air amount setting table, in which the paper type is input from the paper type input unit 31 and the paper basis weight is input from the basis weight input unit 32. In the separation air amount setting table 42, the relationship between the basis weight of the paper and the amount of separation air ejected from the separation air supply nozzle 23 is set for each paper type. The configuration of the separation air amount setting table 42 is analog display or digital display similar to that shown in FIGS. As described above, when the paper type of the paper to be printed and the basis weight of the paper are input as described above, the preset value of the separation air amount corresponding to this input value is obtained from the determination air amount setting table 42. Is required.
[0037]
The determined air amount is input to the determined air amount adjusting means 52, and the determined air amount is set to the preset value in the determined air amount adjusting means 52. Therefore, the amount of the air blown out from the air supply nozzle 23 is preset with a high degree of accuracy to a value suitable for the basis weight and paper type of the paper.
[0038]
Reference numeral 43 denotes a roller pressing pressure setting table. In the roller pressing pressure setting table 43, the paper type is calculated from the paper type input unit 31 and the rigidity calculating unit 37 is calculated by the equation (1). The paper rigidity G is input.
In the roller pressing pressure setting table 43, the relationship between the paper rigidity G and the pressing pressure on the paper by the roller 24 is set for each paper type. The configuration of the roller pressing pressure setting table 43 is analog display or digital display similar to those shown in FIGS. When the paper type of the paper to be printed and the rigidity G of the paper are input as described above, the roller pressing pressure corresponding to the input value is obtained from the roller pressing pressure setting table 43. Is obtained.
[0039]
The roller pressing pressure is input to the roller pressing pressure adjusting means 53, and the roller pressing pressure adjusting means 53 sets the pressing pressure of the roller 24 on the paper 1 to the preset value. Therefore, the pressure of the brush 24 against the paper 1 is preset with a high degree of accuracy to a value adapted to the rigidity G and the paper type of the paper.
[0040]
Reference numeral 44 denotes a suction belt vacuum pressure setting table. The suction belt vacuum pressure setting table 44 receives the paper type from the paper type input unit 31 and the paper basis weight from the basis weight input unit 32, respectively.
In the suction belt vacuum pressure setting table 44, the relationship between the basis weight of the paper and the vacuum pressure for sucking the paper 1 by the vacuum suction belt 26, that is, the vacuum suction pressure is set for each paper type. The configuration of the suction belt vacuum pressure setting table 44 is analog display or digital display similar to that shown in FIGS. As described above, when the paper type of the paper to be printed and the basis weight of the paper are input as described above, the vacuum suction pressure preset value corresponding to the input value is obtained from the suction belt vacuum pressure setting table 44. Is required.
[0041]
The vacuum suction pressure is input to the vacuum pressure adjusting means 54, and the vacuum pressure adjusting means 54 sets the vacuum suction pressure on the paper 1 by the vacuum suction belt 26 to the preset value. Therefore, the vacuum pressure for sucking the paper 1 by the vacuum suction belt 26 is preset with a high precision to a value adapted to the basis weight and paper type of the paper.
[0042]
Reference numeral 45 denotes a separation air position setting table. The separation air position setting table 45 includes a vertical dimension L of the paper 1 from the paper size input section (A) and a horizontal dimension L of the paper 1 from the paper size input section (B). ₁ are input. Then, in the separating air position setting table 45, the longitudinal dimension L and the lateral dimension L ₁ of the _paper, i.e. has relationship is set between the size and the judgment Wea supply nozzle 23 mounted position of the paper, the size of the paper When input, the preset value of the mounting position of the separation air supply nozzle 23 corresponding to the input is obtained.
[0043]
Reference numeral 46 denotes a roller position setting table, into which the total dimension L of the paper 1 is input from the paper size input section (A). In the roller position setting table 46, the relationship between the vertical dimension L of the paper and the mounting position of the separating air supply nozzle 23 is set, and when the size of the paper is input, it corresponds to this. A preset value of the attachment position of the brush roller 24 is obtained.
[0044]
Reference numeral 47 denotes a separation air position setting table, into which the vertical dimension L of the paper 1 is input from the paper size input section (A). In the separation air position setting table 47, the relationship between the vertical dimension L of the paper and the mounting position of the separation air supply nozzle 22 is set, and when the vertical dimension L of the paper is input, the separation air is set. A preset value of the mounting position of the supply nozzle 22 is obtained.
[0045]
【The invention's effect】
As described above, according to the present invention, based on the paper type, basis weight, paper size and paper quality data of the paper to be printed, and the rigidity of the paper calculated from the paper quality data, separation air supply means is provided. The adjustment items of the paper supply unit including the amount of separated air supplied by the air supply unit, the amount of air of the separation air supplied by the separation air supply unit, and the vacuum pressure for sucking the paper by the vacuum suction unit are set to the required paper characteristics. Can be preset with high precision to a value adapted to
[0046]
Therefore, according to the present invention, the presetting of the adjustment items of the paper feeding unit can be performed with high accuracy by incorporating all the paper characteristics required for each of the adjustment items, and the adjustment work at the time of the printing work becomes unnecessary, and the printing operation becomes unnecessary. Work efficiency can be improved, and wasteful use of materials such as paper can be avoided.
[0047]
Further, the amount of separation air ejected from the separation air supply means can be preset with high accuracy to a value adapted to the rigidity and type of paper.
Further, according to the structure as claimed in claim 2, the judgment amount of air ejected from the air supply means judgment can be preset I than in paper basis weight and high accuracy to a value that accommodates the paper type.
Further, according to the structure as claimed in claim 3, the vacuum pressure for paper suction by vacuum suction means can be preset I than in paper basis weight and high accuracy to a value that accommodates the paper type.
Further, according to the structure as claimed in claim 4, the pressing pressure to the paper by Hakekoro can be preset I than with high precision to a value adapted to the stiffness of the paper and paper type.
[Brief description of the drawings]
FIG. 1 is a control block diagram of a sheet feeding unit preset device of a sheet-fed offset printing press according to an embodiment of the present invention.
FIG. 2 is a configuration diagram illustrating an example of a separation air amount setting table.
FIG. 3 is a configuration diagram showing another example of the separation air amount setting table.
FIG. 4 is a side view of the sheet feeding unit in the embodiment.
FIG. 5 is an overall schematic diagram of a sheet-fed offset printing press.
FIG. 6 is a paper thickness setting diagram in the embodiment.
FIG. 7 is an elastic coefficient setting diagram (part 1) in the embodiment.
FIG. 8 is a diagram (part 2) of elastic modulus setting in the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Paper 2 Feeding pile 3 Feeder board 5 Impression cylinder 6 Blanket cylinder 7 Intermediate cylinder 8 Discharge cylinder 9 Paper guide 10 Discharge fan 11 Vacuum wheel 12 Discharge panel 13 Dryer 14 Plate cylinder 21 Separator 22 Separation air supply nozzle 23 Separating air Supply nozzle 24 Roller roller 25 Vacuum unit 26 Vacuum suction belt 30 Paper quality input unit 31 Paper type input unit 32 Basis weight input unit 33 Paper grain input unit 34 Paper size input unit (A)
35 Paper size input section (B)
36 Elasticity coefficient calculation unit 37 Stiffness calculation unit 38 Stiffness parameter calculation unit 39 Paper thickness setting unit 40 Preset amount setting means 41 Separation air amount setting table 42 Separation air amount setting table 43 Weight roller pressing pressure setting table 44 Suction belt vacuum pressure setting Table 45 Separating air position setting table 46 Rolling roller position setting table 47 Separating air position setting table 51 Separating air amount adjusting means 52 Separating air amount adjusting means 53 Rolling roller pressing pressure adjusting means 54 Vacuum pressure adjusting means 100 Paper feed unit 200 Printing unit 300 Discharge unit 400 Register

Claims (5)

It is one by one separated by a paper separating air of paper stored in the sheet storage portion from separating air supply nozzle, the feed unit presetting method printing machine according configured sheet feeding apparatus to pump the printing unit put on the feeder At
And paper separating air amount setting table the relationship between the air amount of the paper separating air ejected paper stiffness parameter G ₁ and from the separation air supply nozzle is set for each paper type,
Paper separation air adjusting means for adjusting the paper separation air supplied to the paper separation air supply nozzle based on a preset amount of the paper separation air amount obtained from the table value;
Paper quality data input means comprising a paper quality data input unit for each of the paper type, basis weight, paper size, and paper size of the paper;
A paper thickness setting unit for inputting the basis weight value input from the input means into a relationship diagram between the basis weight Y and the paper thickness T and calculating paper thickness data corresponding to the weighed value ;
Estimating the elastic modulus E of the corresponding paper from the relationship between the basis weight Y and the elastic modulus E set for each paper type;
Calculating a stiffness G from the elastic coefficient E and the paper thickness data T calculated by the paper thickness setting unit;
And stiffness G the calculated, calculating a stiffness parameter G ₁ by the vertical dimension of the air density w and paper L,
The paper separating air amount setting table, by entering the paper type of the paper to be printed the calculated rigid parameters G _1, selects the preset amount of paper separating air amount corresponding to the input value of the paper quality data sheet feeding unit preset method for a printing press, characterized by comprising further a step. The paper feeding device according to claim 1,
A separation air supply amount setting table from which a preset amount of the separation air supply amount is selected based on the basis weight and the paper type, and the sheet feeding by the air corresponding to the preset amount of the separation air supply amount obtained from the table value. An air supply means for separating the paper stored in the paper storage unit one by one in the apparatus;
In addition to the steps described in claim 1, a step of selecting a preset amount of the separation air supply amount corresponding to the input value from the separation air supply amount setting table by inputting the basis weight and the paper type is provided. 2. The method according to claim 1, further comprising the steps of: The paper feeding device according to claim 1,
A vacuum pressure setting table in which a preset amount of vacuum pressure is set based on the paper type and weighing, and the paper is sucked into the paper feeding device by air corresponding to the preset amount of vacuum pressure obtained from the table value. providing a vacuum suction means for conveying put on the feeder, in addition to the steps of claim 1, wherein, by inputting the paper type and basis weight, from the vacuum pressure setting table, vacuum pressure corresponding to the input value 2. The method according to claim 1 , further comprising the step of selecting a preset amount. The paper feeding device according to claim 1,
Based on the rigidity G, a preset value of the pressing pressure of the roller pressing means is set in a roller pressing pressure setting table, and the paper being transported is pressed with a pressing pressure corresponding to the preset amount of the pressing pressure. Prepare brush roller pressing means to press ,
In addition to the claim 1, wherein the step, the paper type and from the Hakekoro pressing pressure setting table by entering the rigidity G, the paper type and the preset corresponding brush rollers contact pressure to the input value of the elastic modulus 2. The method according to claim 1 , further comprising the step of selecting an amount. Separate the paper stored in the sheet storage unit one by one by air ejected from the separation air supply nozzle, in the printing machine having a configured feeding equipment to pump the printing unit put on the feeder,
And paper separating air amount setting table the relationship between the air amount of the paper separating air ejected paper stiffness parameter G ₁ and from the separation air supply nozzle is set for each paper type,
Paper separation air adjusting means for adjusting the paper separation air supplied to the paper separation air supply nozzle based on a preset amount of the paper separation air amount obtained from the table value;
Paper quality data input means comprising a paper quality data input unit for each of the paper type, basis weight, paper size, and paper size of the paper;
A paper thickness setting unit that inputs the basis weight value input from the input unit into a relationship diagram between the basis weight Y and the paper thickness T and calculates paper thickness data corresponding to the weighed value ;
An elastic modulus calculating unit for estimating the elastic modulus E of the corresponding paper from the relationship between the basis weight Y and the elastic modulus E set for each paper type;
A stiffness calculating unit that calculates a stiffness G based on the elastic coefficient E and the paper thickness data T calculated by the paper thickness setting unit;
And rigidity G calculated by the rigid calculation unit, by the vertical dimension of the air density w and paper L and stiffness parameter calculation unit for calculating a stiffness parameter G ₁ comprises,
The paper separating air amount setting table, by inputting the paper type of the paper to be printed and stiffness parameters G ₁ than the stiffness parameter calculation unit, a preset value of the paper separating air amount corresponding to the input value is determined And a feed unit presetting device for a printing press.

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