JP3819971B2 - Feed adjustment device for printing press - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an adjusting device for a paper feeding device that supplies printing paper at high speed and accurately in a printing machine such as a sheet-fed printing machine.
[0002]
[Prior art]
7 shows a main part of a sheet feeding device of a conventional sheet-fed printing machine, FIG. 8 shows the vicinity of the first suction (one suction), FIG. 9 shows the second suction (two suction), and FIG. Is the vicinity of the paper separation, FIG. 11 shows the air supply system, and FIG. 12 shows the configuration of the vicinity of the bite roller. In FIG. 7, reference numeral 100 denotes stacked paper (sheets), and 1 and 2 denote first adsorption (hereinafter referred to as 1 suction) and second adsorption (hereinafter referred to as 2 suction), which picks up and lifts the paper 100 one by one. Is a paper judgment which blows compressed air from the side of the paper 100 and separates them one by one, 4 is an auxiliary blow, and 5 is a bite roller.
[0003]
In FIG. 8 showing the details of the vicinity of the one suction, 10 is a cam, and the rotation of the cam 10 moves the first suction 1 up and down via the arm (B) 8 and the arm (A) 7. . Reference numeral 100 is paper, 9 is a return spring, and 6 is a height adjusting screw for adjusting the height of one suction.
[0004]
In FIG. 9 showing the details of the vicinity of the two suction, the height of the second suction 2 is adjusted from the height adjusting screw 6 through the wire 13. 100 is paper and 11 is paper.
[0005]
In FIG. 10 showing details of the vicinity of the paper separation, 15 is a height adjusting screw for adjusting the height position of the paper separation 3, 16 is a spring, and 11 is a paper surface.
[0006]
In FIG. 11 showing the supply system of compressed air to the paper separation 3 and auxiliary blower 4, reference numeral 17 denotes a rotary valve for switching between supply and block of air to the paper separation 3 and auxiliary blowout 4, and 18 denotes a pressure adjusting valve.
[0007]
In FIG. 12 showing the details of the above-mentioned biting roller and the vicinity thereof, 5 is a biting roller for holding the paper 100 and guiding it to the printing apparatus, 19 is a timing adjusting screw, and 18 is a return spring.
[0008]
In the paper feeding device, the paper 100 stacked on the paper stack is blown into the upper part of the paper 100 by the paper separator 3 and separated one by one. As shown in FIG. 8, the first suction 1 is moved up and down by an up-and-down mechanism including a cam 10, an arm (A) 7, an arm (B) 8, a spring 9, and the like, and only the uppermost sheet 100 is used. Adsorb and lift. The lifted paper 100 is further sucked and held by the above-described two suctions 2, and is fed into the biting roller 5 by a back-and-forth movement mechanism having a link mechanism or the like, and is fed by the rotational movement of the biting roller 5. . The auxiliary blowout 4 blows air between the uppermost paper 100 lifted by the one suction 1 and the immediately lower paper to completely separate the uppermost paper. The auxiliary blowout 4, particularly large-size paper, also has a function of preventing the paper from dripping in the width direction.
[0009]
In order to obtain a good paper feeding function, it is essential to adjust the height positions of the paper surface and the paper edge on the paper stack for the first suction 1, the second suction 2 and the paper separation 3. Such a height adjusting device has a structure as shown in FIGS. 8 to 10, and this height adjustment is conventionally performed by an operator when changing the size, quality, thickness, and brand of paper to be fed. He relied on experience and intuition to adjust the height.
[0010]
For the paper separation 3 and the auxiliary blowout 4, the air pressure and the timing of the blowout are important. For example, if the air pressure is too high for the auxiliary blowout 4, the paper 100 will flutter, and the two suction 2 Adsorption due to becomes unstable. In order to prevent this, as shown in FIG. 11, the paper separator 3 and the auxiliary blower 4 are equipped with a pressure adjustment valve 18 for adjusting the air pressure, a rotary valve 17 for defining the timing of blowing the air, and the like. Yes. Further, as shown in FIG. 12, the biting roller 5 also adjusts the timing for biting the paper 100 by adjusting the clearance by the timing adjusting screw 19 according to the paper thickness.
[0011]
[Problems to be solved by the invention]
However, in the conventional sheet feeding device for sheet-fed printing presses, each time the type of paper 100 to be fed (paper thickness, paper size, basis weight, brand, etc.) changes, Adjustment of many adjustment points such as adjustment of the height of paper separation 3 and auxiliary blowout 4, adjustment of air pressure and air blowing timing of paper separation 3 and auxiliary blowout 4, and adjustment of paper biting timing of biting roller Therefore, this adjustment requires a lot of work.
[0012]
In addition, these adjustments often depend on the experience and intuition of the operator, and adjustments often vary due to differences in the level of proficiency of the operators. Obtaining paper conditions is extremely difficult.
[0013]
An object of the present invention, as well as allowed to reduce the labor required for the adjustment of the feeding, without depending on skill of operating data, thereby enabling a stable sheet feeding is no variation accuracy, fine adjustment during operation It is an object of the present invention to provide a paper feed adjustment device and method that can be easily implemented.
[0014]
[Means for Solving the Problems]
The present invention solves the above-mentioned problems, the means as the gist thereof is a suction unit that sucks and lifts the paper above the paper stacked on the paper stack, or lifts and moves it horizontally. blowing compressed air from the side of the paper, the paper feeding apparatus having a paper separating to one by one the paper separation, and a bite example section for sending to the printing apparatus by e bite paper transferred from the suction unit, the sheet An input device for inputting an operating condition setting of the paper device, a detection means for detecting the height position of the suction portion or paper separation or biting portion, an air pressure of the paper separation, and the suction detected from the detection means A storage device for storing the height position of the paper part or paper separation or biting part and the air pressure of the compressed air as an adjustment amount of the paper supply device, and adjustment or operation before operation of the paper supply device stored in the storage device To adjust the time That a control device including an algorithm for creating membership functions and control rules from the adjustment amount comprises said controller, in response to the operating conditions input from the input device, the high accordance with the set control rules the rewritable control the position and air pressure is, to have a learning mode that allowed to store in the storage device together with the membership function created by the control rules based on the measured value of I Ri set the paper feed amount of adjustment to the operator In a paper feed adjusting device of a printing press.
[0018]
According to the above means, the control device controls the appropriate paper feed adjustment based on the detection signal of the paper feed adjustment amount such as the height position of the suction part or paper handling or biting part, the air pressure of compressed air to the paper handling. Since a rule is created, if operating conditions are input during operation of the paper feeder, the paper feed adjustment amount such as the air pressure of the height position paper separator such as the suction part, paper separator, and bite part is controlled by the control rule. It will be automatically controlled according to.
[0019]
This eliminates the need for manual adjustment of the paper feed unit, greatly reduces the adjustment effort, and makes automatic adjustment, so that there is no variation in the amount of adjustment and stable paper feeding is possible.
[0020]
Further, it is possible to finely adjust the paper feed adjustment amount in the learning mode during operation, and to correct the control rule and the membership function described later, thereby further improving the paper feed accuracy and stability.
[0022]
Moreover, by combining selected or these optimum results from the measured adjustment amount by a plurality of operators, variations in operator skill is suppressed to a minimum, the accuracy and stability of the paper feed is increased.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. FIG. 1 is an overall configuration diagram of a sheet feeding adjustment device of a sheet-fed printing press according to an embodiment of the present invention, and FIGS. 2, 3, 4, and 6 show a first suction of the sheet feeding adjustment device, respectively. FIG. 5 shows a structure diagram of the vicinity, the vicinity of the second adsorption, the vicinity of the paper separation, and the vicinity of the bite roller, and FIG. 5 shows an air system diagram of the paper separation and the auxiliary blowing.
[0024]
In FIG. 1, 100 is a paper stacked on a paper stacking base 101, 1 and 2 are a first suction (hereinafter referred to as one suction) and a second suction that pick up and lift the paper one by one and transport it in the horizontal direction. (Hereinafter referred to as “two suctions”) 3 is a paper judgment which blows compressed air from the side of the paper 100 and separates them one by one, 4 is an auxiliary blowout, and 5 is a bite roller.
[0025]
Reference numeral 20 denotes a height adjusting actuator, and 21 denotes a height position detection sensor, which are provided in the above-described 1 suction 1, 2 suction 2, paper separation 3 and auxiliary blowout 4, respectively. In addition, a pressure adjusting valve 18 and a pressure adjusting device 23 connected thereto are provided in the air passage to the paper separating 3 and the auxiliary blowout 4, and each pressure adjusting valve 18 is compressed air that has passed through the rotary valve 17. Is to be supplied. Reference numeral 22 denotes a timing adjusting device equipped on the biting roller 5.
[0026]
A control device 26 receives detection signals from the height position detection sensors 21 and outputs control operation signals to the height position adjustment actuators 20, the pressure adjustment devices 23, and the timing adjustment devices 22. Reference numerals 25 and 24 denote storage devices and input devices attached to the control device 26.
[0027]
The input device 24 sets operating conditions of the paper feeding device shown in FIG. 1 and inputs the operation conditions to the control device 26. The storage device 25 is a feed adjustment device set by the control device 26. The control rules are stored and retained as a database.
[0028]
The control device 26 outputs control operation signals to the height adjusting actuators 20, the pressure adjusting devices 23, the rotary valves 17, the timing adjusting devices 22 and the like in accordance with the control rules stored in the storage device 25. In addition, a learning mode is provided, and an algorithm for creating a new membership function and control rule from the adjustment amount in the adjustment before operation of the sheet feeding device or the adjustment during operation is provided.
[0029]
In FIG. 2 showing the structure in the vicinity of the first suction 1, the reference numeral 10 denotes a cam. The rotation of the cam 10 causes the first suction 1 to move up and down via the arm (B) 8 and the arm (A) 7. It has become. 9 is a spring. A height adjusting device 110 including the height adjusting actuator 20 and the height position detecting sensor 21 is provided on the upper portion of the arm (B) 8.
[0030]
The height position detection sensor 21 detects the height of the suction 1 from the paper surface 11 and inputs this detection signal to the control device 26. The height adjusting actuator 20 receives the control operation signal from the control device 26 and adjusts the height of the suction 1 from the paper surface 11.
[0031]
In FIG. 3, which shows the vicinity of the two suctions 2, the two suctions 2 are movable in the vertical direction and the horizontal direction via the link 102, and are connected to the height adjusting device 110 via the wire 13. Yes. The height adjusting device 110 receives the control operation signal from the height position detection sensor 21 and the control device 26 which detects the height of the two suction 2 from the paper surface 11 and sends it to the control device 26 and receives the two suction. The height adjustment actuator 20 adjusts the height from the second paper surface 11.
[0032]
In FIG. 4 showing the vicinity of the paper separation 3, a height position detection sensor 21 that detects the height of the paper separation 3, that is, the height position with respect to the paper surface 11, and inputs it to the control device 26. And a height adjusting device 110 including a height adjusting actuator 20 that adjusts the height position by a control operation signal given from the control device 26 of the paper separation 3.
[0033]
Further, as shown in FIG. 5, a rotary valve 17 is provided in the compressed air passage to the paper separator 3 and the auxiliary blower 4, and the air passage from the rotary valve 17 is connected to the paper breaker 3 and the auxiliary blower. It is branched into two systems. In the air passage to the paper separating 3 and the auxiliary blower 4, pressure adjusting valves 18, 18 for adjusting the air pressure of the air passage, and a pressure adjusting device 23 for controlling the opening of the pressure adjusting valves 18, 18 are provided. 23 is provided.
[0034]
The pressure adjusting devices 23 and 23 control opening and closing of the pressure adjusting valves 18 and 18 according to a control operation signal from the control device 26. In the example of FIG. It is an electric / pneumatic adjustment device that adjusts the flow rate of compressed air for operation.
[0035]
In FIG. 6, which shows the vicinity of the biting roller 5, 22 is a timing adjustment device, which detects the height position of the biting roller 5 and inputs it to the control device 26 and the control. The height adjustment actuator 20 adjusts the timing of paper biting of the biting roller 5 based on a control operation signal from the device 26.
[0036]
In the sheet feeding adjusting device configured as described above, the control parameter setting in the control device 26 is performed in the learning mode. After the learning mode is selected, an arbitrary number of operating conditions (paper quality, paper size, paper feed speed, etc.) are input from the input device 24 to the control device 26, and various paper feed adjustments are performed on this input signal.
[0037]
That is, from each of the height position detection sensors 21, the height of the first suction 1 and the second suction 2 from the paper surface 11, the height position of the air outlet of the paper separation 3 and the auxiliary blowout 4, the biting roller 5 A detection signal such as a height position is input to the control device 26. In the control device 26, the detection signal is used and the control rules stored in the storage device 25 are followed. The first suction 1, the second suction 2, the paper separation 3, the auxiliary blowing 4 (if necessary) and A control operation signal at an appropriate height position is output to the height adjusting actuator 20 of the biting roller 5. As a result, the first suction 1, the second suction 2, the paper separation 3, the auxiliary blowout 4 and the biting roller 5 are operated while being held at a height suitable for the control rule.
[0038]
The control device 26 controls the opening and closing of the compressed air passage of the rotary valve 17 in accordance with the control rule, and opens the pressure adjusting valves 18 and 18 to the pressure adjusting devices 23 and 23 of the paper separating 3 and the auxiliary blowing 4. A degree control signal is output to adjust the air pressure from the paper separation 3 and the auxiliary blowout 4 to the air pressure according to the control rule.
[0039]
Adjustment amounts of the sheet feeding device as described above, that is, 1 suction 1, 2 suction 2, paper separation 3, auxiliary blowing 4 and biting roller 5 height position, rotary valve 17 opening, pressure adjustment valve 18 opening The amount of adjustment such as the air pressure of the paper separation 3 and the auxiliary blower 4 is determined by the height position detection sensor 21, the opening degree detection sensor (not shown) of the rotary valve 17 and the pressure adjustment valve 18, and the air pressure sensor (not shown). (Omitted) or the like is stored in the storage device 25 via the control device 26.
[0040]
In the control device 26, membership functions and control rules are continuously created based on the adjustment amount stored and held. Therefore, when operating the sheet feeding device, if the operating conditions are input from the input device 24 to the control device 26, the above 1 suction 1, 2 suction 2, paper handling 3, auxiliary blowing 4, biting roller 5, rotary valve 18, pressure The paper feed adjusting unit such as the adjusting valve 18 is controlled according to the control rule set as described above, and proper paper feeding is automatically performed.
[0041]
In the control device 26, the control parameters (height position, air pressure, etc.) are set by a plurality of operators, and the membership function that obtains the most preferable result is adopted, thereby enabling the feeding accuracy and stability. Can be improved.
[0042]
Further, if the learning mode is selected during the operation of the paper feeding device and fine adjustment of each element of the paper feeding adjusting device is performed, the adjustment amount of the adjusting device at this time is stored in the storage device 25 via the control device 26. The membership function and the control rule are corrected by being stored.
[0043]
【The invention's effect】
The present invention is configured as described above. According to the present invention, the control rule based on the detection result of the paper feed adjustment amount in the control device, and various operation use conditions (paper thickness, size, paper feed) of the paper feed device. The membership function based on the actual adjustment amount by the operator corresponding to the speed etc. is stored in advance as a database, so that the sheet feeding device can be automatically adjusted only by inputting the operating conditions. In addition, the adjustment work can be greatly reduced compared to the conventional one.
[0044]
Also, by adjusting by multiple operators and selecting the optimal membership function and control rules, or combining them, the variation in operator skills is minimized, and the accuracy of paper feed In addition, stability can be improved.
[0045]
Further, it is possible to make fine adjustments in the learning mode during operation, and to correct the control rules and membership functions, thereby further improving the accuracy and stability of paper feeding.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram of a sheet feeding adjustment device of a sheet-fed printing press according to an embodiment of the present invention.
FIG. 2 is a structural diagram in the vicinity of first suction of the paper feed adjusting device.
FIG. 3 is a structural diagram in the vicinity of second adsorption in the apparatus.
FIG. 4 is a structural diagram in the vicinity of paper separation in the apparatus.
FIG. 5 is an air system diagram of paper separation and auxiliary blowing in the apparatus.
FIG. 6 is a structural diagram in the vicinity of a biting roller in the apparatus.
FIG. 7 is an external view of a main part of a sheet feeding device of a conventional sheet-fed printing press.
FIG. 8 is a structural view in the vicinity of a conventional first adsorption.
FIG. 9 is a structural diagram in the vicinity of a conventional second adsorption.
FIG. 10 is a structural diagram in the vicinity of a conventional paper separation.
FIG. 11 is an air system diagram of conventional paper separation and auxiliary blowing.
FIG. 12 is a structural diagram in the vicinity of a conventional bite roller.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 1st adsorption | suction 2 2nd adsorption | suction 3 Paper separation 4 Auxiliary blowing 5 Bite roller 17 Rotary valve 18 Pressure adjustment valve 20 Height adjustment actuator 21 Height position detection sensor 22 Timing adjustment device 23 Pressure adjustment device 24 Input device 25 Storage device 26 Control device 100 Paper 110 Height adjustment device

Claims (1)

An adsorbing section that adsorbs and lifts the paper up or moves it horizontally above the paper stacked on the paper stack, and paper that blows compressed air from the side of the paper and separates the paper one by one In a paper feeding device comprising a judgment and a biting unit that bites the paper transferred from the suction unit and sends it to a printing device,
An input device for inputting the operating condition setting of the paper feeding device;
Detection means for detecting the height position of the suction part or paper separation or biting part, the air pressure of the paper separation;
A storage device for storing the height position of the suction portion or paper separating or biting portion detected from the detection means and the air pressure of the compressed air as an adjustment amount of the paper feeding device;
And a controller having an algorithm for creating membership functions and control rules from the adjustment amount in operation before the adjustment or adjustment during operation of the sheet feeding device stored in the storage device,
The control device
Depending on the operating conditions input from the input device, to control the height position and the air pressure in accordance with set control rules Rutotomoni,
Printer paper feed adjustment apparatus characterized by creating a membership function based on the measured values of the set the paper feed adjustment value Ri by the operator with control rule has a learning mode allowed to store in the storage device .

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