JPH0679863A - Register presetting mehtod and apparatus thereof - Google Patents

Abstract

PURPOSE:To perform register-presetting automatically by calculating the position of a compensator roller so that the gate positions and register adjustment marks are printed at constant distances based upon a detected result of the shaft mark positions of a printing board, and then effecting preset thereby. CONSTITUTION:By rotating an plate cylinder 10, shaft marks are detected by a mark detector 42, and the phase differentials are calculated by a preset personal computor 3. The preset personal computor 3 calculates the position of a compensator roller 12 on the basis of the peripheral position phase from a motive shaft phase reading device 2 and mark detecting signals of a mark judging computor, so that the gate positions and resister adjustment marks are printed at a constant distance required for a scanning head 6 to detect the resister adjustment marks of each plate cylinder printed on running paper. Further, the gate position center is outputted on a gate position setting device 4, and the position data is outputted on a compensator roller position preset device 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gravure multi-color printing machine or the like in which gravure is performed by moving a compensator roller provided between printing units for adjusting vertical registration of each color (hereinafter referred to as registration adjustment). The present invention relates to a register presetting method and apparatus for a printing press.

[0002]

2. Description of the Related Art In gravure printing and the like, the printed matter pitch is determined by the circumference of the plate cylinder to be used, and the circumference of the plate cylinder greatly changes depending on the type of printed material. Therefore, when the circumference of the plate cylinder changes, it is necessary to adjust the vertical register before printing. Generally, a compensator roller for adjusting a web path is provided between printing units of a printing press.

FIG. 11 is a block diagram showing a conventional example of a register presetting device (Japanese Patent Laid-Open No. 1-99846). The storage device (fixed data storage means) 22 stores the paper path between the plate cylinders, the reference position of the register adjustment mark printing section of each plate cylinder, and the interval of each register adjustment mark to be printed on the running paper. There is.

When data relating to the circumference of the plate cylinder is input from the console (reference data input means) 21, a computer (drive shaft phase calculation) is performed based on the data from the console 21 and the data stored in the storage device 22. The means 3a) 3 calculates the phase of each plate cylinder when the register adjustment marks of each plate cylinder printed on the running paper pass the scanning head 6, and the desired phase is calculated based on the calculated phase data of each plate cylinder. Only the registration adjustment mark of the scanning head 6
The timing for generating the gate signal for detection by the register adjusting device 5 is set.

Further, the computer (compensator roller position calculating means 3b) 3 calculates the position of the compensator roller which matches the interval of the register adjustment marks stored in the storage device 22, and the compensator roller position calculating means 3b calculates the position. A device for moving the position of the compensator roller disposed between the plate cylinders by the compensator roller position presetting device 7 based on the data of the compensator roller (compensator roller drive circuit 8, encoder 13, motor 1).
4)) and set the amount of movement of the compensator roller.

After that, the register adjusting device 5 detects the register adjusting mark of each plate cylinder printed on the running paper by the scanning head 6 by using the gate signal set by the gate position setting device 4, and The position of the compensator roller arranged between each plate cylinder is moved so that the register adjustment marks on the plate cylinder are printed at regular intervals.

In this case, as a preparatory step, the register adjustment mark printing section of each of the plate cylinders is previously stored in the storage means while the driving shaft is stopped, and the reference position of the plate cylinder (for example, the center of the plate cylinder is stored). (Right next to), and attach it to the printing unit. Conventionally, as a method of aligning the reference position of such a plate cylinder, in addition to the simple visual measurement, a level or an indicator needle is used for phase determination of the plate cylinder in the circumferential direction, and an indicator needle is used for lateral positioning. Was there.

In the case of using a level, as shown in FIG.
For example, with the matching mark 70a provided on the aligning device 70 aligned with the reference position 15 of the plate cylinder 10, the level 71 arranged perpendicularly to the plane including the axis of the plate cylinder is in the circumferential direction so as to indicate horizontal. Adjust the phase.

When an indicator needle (scale) is used, as shown in FIG. 5, the fixing portions 61 and 6 of the printing machine for supporting the plate cylinder 10 are provided.
A detachable scale support portion 80 is attached to a part of No. 1, and a circumferential direction is set so that the reference position 15 of the plate cylinder is aligned with the tip of the arrow-shaped portion at the tip of the scale 81 attached to the scale support portion 80. Determine phase and lateral position.

[0010]

The above-mentioned conventional method of positioning the plate cylinder is extremely low in accuracy if the positioning is performed only by visual inspection. In the method using the spirit level, the positioning in the lateral direction cannot be performed only by the positioning in the phase in the circumferential direction, though the operation is troublesome.

When a support needle is used, not only circumferential positioning but also lateral positioning can be performed, but the tip of the support needle must be close to the plate cylinder. Therefore, due to its structure, it must be removed every time the plate cylinder is replaced.
Also, the mounting structure must be mounted in the correct position without displacement. Further, since there are various gravure plate cylinders having various diameters in general, it is necessary to change the position of the arrow-shaped portion at the tip of the scale 81 in accordance with the plate cylinder diameter.

[0012] Any of the above methods have difficulty in operability,
The disadvantage is that it takes a lot of time for positioning.

An object of the present invention is to solve the above-mentioned problems, to eliminate the work of attaching the register adjustment mark printing portion of each plate cylinder to each printing unit in accordance with the reference position, and to automatically perform register presetting. The object of the present invention is to provide a register setting method and device capable of register registration.

[0014]

In order to solve the above-mentioned problems, a register presetting method according to the present invention is a gravure printing machine in which a longitudinal register of a printed matter is adjusted by moving a compensator roller arranged between printing units. In the register preset method, the circumferential phase of the plate is detected by detecting the position of the axis mark provided on the axis of the printing plate of the shaft integrated type, and the scanning head prints on the running paper based on the detection result. Calculate the gate position required to detect the registration adjustment marks on each plate cylinder and the position of the compensator roller placed between each plate so that the registration adjustment marks on each plate cylinder are printed at regular intervals. The presetting is based on the calculation result.

On the other hand, the register presetting apparatus according to the present invention is a register presetting apparatus for a gravure printing machine, which adjusts the longitudinal registration of a printed matter by moving a compensator roller arranged between the printing units. Axis mark for detecting at least the phase of the rotation direction of the axis, an axis mark detector for detecting the position of the axis mark, and a circumferential direction of the plate detected by the axis mark detector. Based on the phase, the gate position necessary for the scanning head to detect the register adjustment marks on each plate cylinder printed on the running paper and the register adjustment marks on each plate cylinder are printed at regular intervals. Calculate the position of the compensator roller placed between the torso and set the gate position and the position of the compensator roller based on the calculation result. It can be configured to include a preset control unit for.

[0016]

According to the present invention, the circumferential phase of the plate is detected by detecting the position of the shaft mark provided on the shaft of the shaft-integrated printing plate, and the scanning head runs based on the detection result. The gate position required to detect the register adjustment marks on each plate cylinder printed on paper and the compensator roller placed between each plate cylinder so that the register adjustment marks on each plate cylinder are printed at regular intervals. It is possible to calculate the position and perform presetting based on the calculation result.

[0017]

The present invention will be described in detail below with reference to the drawings and the like. 1 is a block diagram showing an embodiment of a register presetting device according to the present invention, and FIG.
It is a block diagram which showed the relationship between the apparatus shown in FIG. The parts that perform the same functions as those of the conventional example described above are designated by the same reference numerals.

The prime mover phase detector 1 is connected to the prime mover 5 via the rotary shaft 52 of the plate cylinder 10 and the gearbox 51.
This is for detecting the phase of the driving shaft 50a of zero.
The rotation of the motor 50 is controlled by the machine controller 53. The drive shaft phase reading device 2 is a drive shaft phase detector 1
Is a device for reading the phase of the driving shaft 50a detected by the above and providing the phase data of the plate cylinder 10 to the preset personal computer 3, the register adjusting device 5, and the mark judging computer 43 which will be described later.

The preset personal computer 3 prints each plate on which the scanning head 6 is printed on the running paper W based on the circumferential phase of the plate from the driving shaft phase reading device 2 and the mark detection signal of the mark judgment computer 43 described later. The gate position required to detect the register adjustment mark on the cylinder and the position of the compensator roller 12 arranged on each plate cylinder so that the register adjustment marks on each plate cylinder are printed at regular intervals are calculated, and the gate position is calculated. The gate position data is output to the setting device 4, and the compensator roller preset position data is output to the compensator roller roller position preset device 7. The preset personal computer 3 outputs the plate cylinder circumference data to the mark determination computer 43 and outputs a signal for controlling the prime mover 50 to the machine controller 53.

The gate position setting device 4 determines the timing at which the register adjusting device 5 generates a gate signal for detecting only a desired register adjusting mark by the scanning head 6 based on a preset control signal from the preset personal computer 3. This is the device to set.

The register adjusting device 5 processes the signal of the register adjusting mark of each color input from the scanning head 6 based on the data from the driving shaft phase reading device 2 and the gate position setting device 4, and the scanning head 6 is processed. Compensator roller drive circuit 8 so that the register adjustment mark of each color printed on the running paper W is detected at a predetermined timing.
And a device for controlling the Sideley drive circuit 48.

The compensator roller position presetting device 7, based on the data from the preset personal computer 3,
This is a device for setting the amount of movement of each compensator roller 12a, 12b, 12c in the compensator roller drive circuit 8. The compensator roller drive circuit 8 receives each signal from the register adjusting device 5 or the compensator roller position presetting device 7 based on a signal from each compensator roller 1.
Motors 14a-1 connected to 2a, 12b, 12c
4c is rotated and each compensator roller 12a-1 is rotated.
It is a device for moving 2c. Then, each motor 14
The rotation amount of a, 14b, 14c, that is, the movement amount of each compensator roller is detected by the compensator roller position detectors 13a, 13b, 13c, read by the compensator roller position reading device 17, and fed back to the compensator roller drive circuit 8. When the compensator rollers 12a, 12b, 12c move by a predetermined amount, the motors 14a, 14b, 14c stop rotating.

The axis mark 41 is formed by making a notch (groove) or the like in the rotary shaft 52 of the plate cylinder 10, and is for detecting at least the phase of the rotary shaft 52 in the rotational direction. The axis mark detector 42 uses the axis mark 41
Is a sensor for detecting the position of, and its output is connected to the mark discrimination computer 43.

The sidelay is for adjusting the lateral registration of the printed matter by moving the plate cylinder 10 at right angles to the direction of flow of the running paper W. Sideley position detector 45
Is a sensor for detecting the sideley position of the plate cylinder 10, and the output thereof is connected to the sideley position reading device 46. The sideley position presetting device 47 is a device that sets the sideley movement amount in the sideley driving circuit 48 based on the data from the preset personal computer 3. The sideley drive circuit 48 is a device for rotating the motor 44 connected to the sideley and moving the sideley based on a signal from the register adjusting device 5 or the sideley position presetting device 47. Then, the rotation amount of the motor 44, that is, the movement amount of the sideley is detected by the sideley position detector 45, is read by the sideley position reading device 46, is fed back to the sideley drive circuit 48, and when the sideley is moved by a predetermined amount, The motor 44 is adapted to stop rotating.

Next, the operation of the embodiment of the register presetting device according to the present invention will be described.

In the first printing, the plate cylinder 10 is rotated,
The axis mark 21 and the register adjustment mark printing unit 15 are detected by the axis mark detector 42 and the sensor unit 63a, respectively, and the phase difference is calculated by the preset personal computer 3.

In the second and subsequent printing, the axis mark detector 4
The axis mark 41 is detected by 2 and the preset personal computer 3 compares the previous printing to calculate how much the phase of the plate cylinder 10 is deviated, and the compensator roller position x and the gate address g are corrected. The sidelay position is the same as the one printed the last time.

FIG. 5 is a diagram showing the state of the first printing,
FIG. 6 is a diagram showing a second printing state. In FIG. 5, the first unit (1
u) the phase of the axis mark 41a is S ₁ [pulse], the phase of the register adjustment mark printing portion 15a is r ₁ , and the second unit (2)
In u), the phase of the axis mark 41b is S ₂ [pulse], the phase of the register adjustment mark printing portion 15b is r ₂ , the gate address is g [pulse], and the compensator roller position x ₁ . In FIG. 6, the phase of the axis mark 41a of the first unit (1u) when performing the second printing is S ₁ '[pulse], the phase of the register adjustment mark printing portion 15a is r ₁ ', the second
The phase of the axis mark 41b of the unit (2u) is S ₂ '[pulse], and the phase of the register adjustment mark printing portion 15b is r ₂ ',
The gate address is g '[pulse] and the compensator roller position x ₁ '.

At this time, the gate address in the first unit is set by the following equation. _{g '= g- (S 1'} -S 1) ... (1) The first and compensator roller position between the second unit is set by the following equation. x ₁ '= x ₁ - _{[(S 2' -S 1 ')} - (S 2 -S 1) ] / Re × L × (1/2) ... (2) where, Re is the resolution of the rotary encoder, L Is plate cylinder 1
It is a circumference of 0.

FIG. 7 is a flow chart for explaining the operation of the register presetting device according to the present invention. Preset PC 3
When the preset start is input from (S101), the plate cylinder 10 is rotated (S102). Next, the position of the axis mark 41 is detected from the encoder pulse value for each unit of the plate cylinders 10a to 10d and input to the preset personal computer 3 (S103 to S106). When the axis marks 41 of all the units are detected, the plate cylinder 10 is stopped (S107).

In step S108, the sideley position of each unit is preset by using the sideley position of the first time as it is. In S109, the compensator roller position of each unit is calculated from the first compensator roller position and axis mark position, the current axis mark position, and the plate circumference, and preset. In S110, 1
The gate address of each unit is calculated from the gate address and the axis mark position at this time and the current axis mark position, and preset. End the register preset.

Next, each preset operation described above will be described in more detail. (Embodiment 1) In Embodiment 1, a groove-shaped shaft mark 41 is formed on the shaft portion of the plate cylinder 10. The shaft mark 41 is formed at the same distance from the shaft end in all plates. The plate cylinder 10
If the items are the same, all the marks from the axis mark 41 to the register mark 1
The plates are made so that the distances up to 6 are the same. Further, the plate is manufactured so that the registration mark 16 on the plate cylinder 10 and the axis mark 41 have the same phase.

First, in the sideley position preset operation (S108), the sideley position is set at the origin for all units, and the plate cylinders 10a to 10d are set.

Next, in the preset operation of the compensator roller position (S109), the position of the compensator roller 12 is calculated and set from the phase θ _i of the axis mark 41 and the circumference L of the plate cylinder. That is, as shown in FIG. 8, θ _i : phase of the axis mark 41 attached to the i-th unit (= phase of the register mark 16) L: circumference of the plate cylinder r: radius of the plate cylinder (= L / 2π) T _i: print point P distance from _i-1 of the running paper W to P _i m: If the distance of the running paper W from the printing point P _i-1 when the compensator roller is in the origin to P _i, adjacent To align the i-th unit and the i-th unit, the compensator roller position may be set so that T _i = nL + r (θ _i-1 −θ _i ) ... (3). Incidentally, compensator roller position such that an integral multiple of the circumference L of the distance T _i is the plate cylinder between the printing point P _i-1 P _{i is, x 0 = (nL-m} ) / 2 ... (4) provided that , N = INT [m / L] +1 (5) Here, INT [X] is the maximum integer that does not exceed X. Therefore, the position of the compensator roller for satisfying the expression (3) is x = x ₀ + r (θ _i-1 −θ _i ) / 2 (6).

Next, the gate preset operation (S110)
Is set by calculating the phase of the gate using the phase of the axis mark, the circumference of the plate cylinder, and the distance from the printing point to the scanning head. That is, as shown in FIGS. 9 and 10, θ _g : phase of gate to be obtained θ ₀ : initial phase of driving shaft θ ₁ : phase of register mark Q on the plate cylinder when the plate cylinder is attached θ ₂ : register mark Phase of the register adjustment mark R with respect to Q θ: Phase of the plate cylinder with respect to the reference point R when the register adjustment mark R printed on the running paper W passes through the scanning head L: Circle of the plate cylinder r: Radius of the plate cylinder (L / 2π) z: Rotation ratio between the driving shaft and the plate cylinder D: Distance from the printing point P to the scanning head S d ₀ : Distance from the register mark Q of the plate cylinder of the first color to the register adjustment mark R d: Adjacent In the i-th unit, θ ₁ + θ ₂ + θ = D / r (7) Therefore, the gate phase θ _{g to be obtained} , that is,
The driving shaft of the phase at which the printed register adjustment mark passes the scanning _{head, θ g = θ 0 + zθ} = θ 0 + z { _{[(D-d 0 - (i} -1) d ] / r-theta ₁ } (8)

The preset personal computer 3 outputs the data of the position x of the compensator roller 12 and the phase θ _g of the gate calculated as described above to the compensator roller position presetting device 7 and the gate position setting device 4. After that, the compensator roller position presetting device 7, based on the data of the position x of the compensator roller 12 inputted from the preset personal computer 3,
The movement amount of the motor 14 that moves the compensator roller 12 is set. The motor 14 rotates to move the compensator roller 12, and the moving amount of the compensator roller 12 is detected by the encoder 13 and fed back to the compensator roller drive circuit 8 via the compensator roller position reading device 17 to be set. When the movement amount is reached, the rotation of the motor 14 is stopped and the presetting of the compensator roller 12 is completed.

Further, the gate position setting device 4 sends a gate signal to the detection signal from the scanning head 6 in the register adjusting device 5 based on the data of the phase θ _g of the driving shaft 50 inputted from the preset personal computer 3. Set the timing to generate. Since the gate is applied with a certain predetermined width, assuming that the gate width on the running paper W is U, the gate signal is generated when the phase of the driving shaft 50 is in the range of the following equation. (Θ _g −α / 2) to (θ _g + α / 2) (9) where α = U / r. In this way, the gate applied to the detection signal from the scanning head 6 is preset.

(Embodiment 2) When the phase of the register adjustment mark printing portion 15 on the plate cylinder 10 and the axis mark 41 cannot be made the same, the following may be carried out. First, in the first printing, with respect to the sideley preset, the position of the sideley in a state in which there is a registration is recorded. For compensator roller presets and gate presets, record the compensator roller position and the phase difference of the axis mark between adjacent units when they are in register.

In the second and subsequent printing, the sidelay is set at the same position as in the first printing for the sidelay preset. Regarding the compensator roller preset, it is determined whether the phase difference between the adjacent units has changed by this time and the first printing, and the correction amount of the position of the compensator roller is calculated and set from this and the circumference data. Regarding the gate preset, the gate phase of the current printing is calculated and set from the phase difference between the current printing and the first printing, and the gate phase of the first printing.

(Third Embodiment) In addition, the scanning head for the register controller is usually the first unit in order to detect the register mark printed on the unit and the unit immediately before the unit and to control the register. However, when the scanning head is also attached to the first unit, the following can also be done. In the first print, record the sideley position in the sideley in register. For compensator roller presets and gate presets, record the phase difference between the register adjustment mark on the plate cylinder and the axis mark. (The phase of the register adjustment mark on the plate cylinder is the distance to the scanning head and the circumference of the plate cylinder. It can be calculated from.)

In the second and subsequent printing, the sidelay is set at the same position as in the first printing for the sidelay preset. For the compensator roller preset, the position of the compensator roller is calculated using the phase of the axis mark of this printing, the phase difference between the register adjustment mark and the axis mark obtained in the first printing, and the circumference of the plate cylinder. And set. For gate preset, using the phase of the axis mark of this printing, the phase difference between the register adjustment mark and the axis mark obtained in the first printing, the circumference of the plate cylinder and the distance from the printing point to the scanning head, Calculate and set the gate phase.

The present invention is not limited to the embodiment described above, and various modifications can be made. In each of the above-described embodiments, the conventional preset system can be used for the first printing. Further, it is possible to record the phase of the axis mark of the plate, the gate address, the position of the compensator roller, and the position of the sideley on the preset card when they are in register so that they can be used at the next repeat.

[0043]

As described in detail above, according to the present invention, the register preset can be automatically performed without the conventional work of aligning the register adjustment mark printing portion of each plate cylinder with the reference position. Therefore, the preparation time can be shortened. In addition, register presetting can be performed more accurately than when the register adjustment mark printing portion of each plate cylinder is aligned with the reference position by visual inspection.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a register presetting device according to the present invention.

FIG. 2 is a configuration diagram showing a relationship between the apparatus shown in FIG. 1 and a printing machine.

3 is a perspective view showing a structure near a plate cylinder of the printing machine of FIG. 2. FIG.

FIG. 4 is a diagram showing a first printing state.

FIG. 5 is a diagram showing a second printing state.

FIG. 6 is a flowchart illustrating the operation of the register presetting device according to the present invention.

FIG. 7 is a diagram illustrating a preset operation of a compensator roller position.

FIG. 8 is a diagram illustrating a gate position preset operation.

FIG. 9 is a development view of the plate cylinder for explaining the preset operation of the gate position.

FIG. 10 is a block diagram showing a conventional example of a register presetting device.

FIG. 11 is a perspective explanatory view showing a conventional method of registering a plate cylinder.

FIG. 12 is a perspective explanatory view showing a conventional method of registering a plate cylinder.

FIG. 13 is a perspective explanatory view showing another conventional method of registering the plate cylinder.

[Explanation of symbols]

 1 Driving shaft phase detector 2 Driving shaft phase reading device 3 Preset personal computer 4 Gate position setting device 5 Register adjusting device 6 Scanning head 7 Compensator roller position presetting device 8 Compensator roller driving circuit 10 Plate cylinder 12 Compensator roller 13 Compensator roller position detector 17 Compensator Roller Position Reading Device 41 Axis Mark 42 Axis Mark Detector 43 Mark Discrimination Computer 44 Sideley Actuator 45 Sideley Position Detector 46 Sideley Position Reader 47 Sideley Position Preset Device 48 Sideley Drive Circuit 50 Motor 51 Gabox 52 Rotation Axis 53 Unit controller

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[Procedure amendment]

[Submission date] December 27, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 2

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

FIG. 10 is a block diagram showing a conventional example of a register presetting device (Japanese Patent Laid-Open No. 1-99846). The storage device (fixed data storage means) 22 stores the paper path between the plate cylinders, the reference position of the register adjustment mark printing section of each plate cylinder, and the interval of each register adjustment mark to be printed on the running paper. There is.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

In the case of using a spirit level, as shown in FIG. 11 , for example, an alignment mark 70a provided on the alignment tool 70.
In the state where is adjusted to the reference position 15 of the plate cylinder 10, the phase in the circumferential direction is adjusted so that the level 71 arranged perpendicular to the plane including the axis of the plate cylinder is horizontal.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

FIG. 12 shows the case of using an indicator needle (scale).
A fixed portion 61 of the printing press which supports the plate cylinder 10 as shown in FIG.
A detachable scale support portion 80 is attached to a part of 61, and the scale 81 attached to the scale support portion 80 extends in the circumferential direction so that the reference position 15 of the plate cylinder is aligned with the tip of the arrow-shaped portion at the tip of the scale 81. Determine phase and lateral position.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0028

[Correction method] Change

[Correction content]

FIG. 4 is a diagram showing a state of the first printing,
FIG. 5 is a diagram showing a second printing state. In FIG. 4 , the first unit (1
u) the phase of the axis mark 41a is S ₁ [pulse], the phase of the register adjustment mark printing portion 15a is r ₁ , and the second unit (2)
In u), the phase of the axis mark 41b is S ₂ [pulse], the phase of the register adjustment mark printing portion 15b is r ₂ , the gate address is g [pulse], and the compensator roller position x ₁ . In FIG. 5 , the phase of the axis mark 41a of the first unit (1u) when performing the second printing is S ₁ '[pulse], the phase of the register adjustment mark printing unit 15a is r ₁ ', the second
The phase of the axis mark 41b of the unit (2u) is S ₂ '[pulse], and the phase of the register adjustment mark printing portion 15b is r ₂ ',
The gate address is g '[pulse] and the compensator roller position x ₁ '.

[Procedure correction 6]

[Document name to be amended] Statement

[Name of item to be corrected] 0030

[Correction method] Change

[Correction content]

FIG. 6 is a flow chart illustrating the operation of the register presetting device according to the present invention. Preset PC 3
When the preset start is input from (S101), the plate cylinder 10 is rotated (S102). Next, the position of the axis mark 41 is detected from the encoder pulse value for each unit of the plate cylinders 10a to 10d and input to the preset personal computer 3 (S103 to S106). When the axis marks 41 of all the units are detected, the plate cylinder 10 is stopped (S107).

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0034

[Correction method] Change

[Correction content]

Next, in the preset operation of the compensator roller position (S109), the position of the compensator roller 12 is calculated and set from the phase θ _i of the axis mark 41 and the circumference L of the plate cylinder. That is, as shown in FIG. 7 , θ _i : phase of the axis mark 41 attached to the i-th unit (= phase of the register mark 16) L: circumference of the plate cylinder r: radius of the plate cylinder (= L / 2π) T _i: print point P distance from _i-1 of the running paper W to P _i m: If the distance of the running paper W from the printing point P _i-1 when the compensator roller is in the origin to P _i, adjacent To align the i-th unit and the i-th unit, the compensator roller position may be set so that T _i = nL + r (θ _i-1 −θ _i ) ... (3). Incidentally, compensator roller position such that an integral multiple of the circumference L of the distance T _i is the plate cylinder between the printing point P _i-1 P _{i is, x 0 = (nL-m} ) / 2 ... (4) provided that , N = INT [m / L] +1 (5) Here, INT [X] is the maximum integer that does not exceed X. Therefore, the position of the compensator roller for satisfying the expression (3) is x = x ₀ + r (θ _i-1 −θ _i ) / 2 (6).

[Procedure Amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0035

[Correction method] Change

[Correction content]

Next, the gate preset operation (S110)
Is set by calculating the phase of the gate using the phase of the axis mark, the circumference of the plate cylinder, and the distance from the printing point to the scanning head. That is, as shown in FIGS. 8 and 9 , θ _g : phase of gate to be obtained θ ₀ : initial phase of driving shaft θ ₁ : phase of register mark Q on the plate cylinder when the plate cylinder is attached θ ₂ : register mark Phase of the register adjustment mark R with respect to Q θ: Phase of the plate cylinder with respect to the reference point R when the register adjustment mark R printed on the running paper W passes through the scanning head L: Circle of the plate cylinder r: Radius of the plate cylinder (L / 2π) z: Rotation ratio between the driving shaft and the plate cylinder D: Distance from the printing point P to the scanning head S d ₀ : Distance from the register mark Q of the plate cylinder of the first color to the register adjustment mark R d: Adjacent In the i-th unit, θ ₁ + θ ₂ + θ = D / r (7) Therefore, the gate phase θ _{g to be obtained} , that is,
The driving shaft of the phase at which the printed register adjustment mark passes the scanning _{head, θ g = θ 0 + zθ} = θ 0 + z { _{[(D-d 0 - (i} -1) d ] / r-theta ₁ } (8)

[Procedure Amendment 9]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 12

[Correction method] Added

[Correction content]

FIG. 12 is a perspective explanatory view showing another conventional method of registering a plate cylinder.

[Procedure Amendment 10]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 13

[Correction method] Delete

[Correction content]

FIG. 13 is a perspective explanatory view showing another conventional method of registering the plate cylinder.

[Procedure Amendment 11]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 4

[Correction method] Change

[Correction content]

[Figure 4]

[Procedure Amendment 12]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 5

[Correction method] Change

[Correction content]

[Figure 5] ─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] August 26, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 13

[Correction method] Delete

Claims (2)

[Claims] 1. A register presetting method for a gravure printing machine, wherein a longitudinal register of a printed matter is adjusted by moving a compensator roller arranged between printing units. By detecting the position, to detect the circumferential phase of the plate, based on the detection result, the gate position and each required for detecting the register adjustment mark of each plate cylinder printed by the scanning head on the running paper. A register presetting method characterized in that the position of a compensator roller arranged between each plate cylinder is calculated so that the register adjustment marks on the plate cylinder are printed at regular intervals, and the preset is performed based on the calculation result. 2. A register presetting device of a gravure printing machine, which adjusts a longitudinal register of a printed matter by moving a compensator roller arranged between printing units, which is provided at least on a shaft of a shaft-integrated printing plate. An axis mark for detecting the phase in the rotation direction of the axis, an axis mark detector for detecting the position of the axis mark, and a scanning head running based on the circumferential phase of the plate detected by the axis mark sensor. The gate position required to detect the register adjustment marks on each plate cylinder printed on paper and the compensator roller placed between each plate cylinder so that the register adjustment marks on each plate cylinder are printed at regular intervals. A register presetting device comprising: a preset control unit that calculates a position and performs presetting based on the calculation result.