阅读说明：本技术 一种机组式凹版印刷机色组速度信号输出的控制方法 (Control method for unit type gravure printing machine color set speed signal output ) 是由 王兰兰 魏新平 魏克亮 于 2020-07-17 设计创作，主要内容包括：本发明公开了一种机组式凹版印刷机色组速度信号输出的控制方法,具体包括如下步骤：步骤1,确定画面检测系统的速度信号；步骤2,通过接近开关的脉冲信号控制固态继电器的开合；步骤3,固态继电器将色组每次的接通信号以开关量的形式传送给画面检测系统,通过画面检测系统计算出色组的当前速度V。本发明解决了目前采用接近开关传送速度信号时存在的接线繁琐、色组唯一性的问题。(The invention discloses a control method for the output of a unit type gravure printing machine color unit speed signal, which specifically comprises the following steps: step 1, determining a speed signal of a picture detection system; step 2, controlling the opening and closing of the solid-state relay through a pulse signal of the proximity switch; and 3, transmitting the on-signal of the color set to the picture detection system in a switching value mode by the solid-state relay, and calculating the current speed V of the color set by the picture detection system. The invention solves the problems of complex wiring and color set uniqueness existing when a proximity switch is adopted to transmit speed signals at present.)

1. A control method for the output of a unit type gravure printing machine color unit speed signal is characterized in that: the method specifically comprises the following steps:

step 1, determining a speed signal of a picture detection system;

step 2, controlling the opening and closing of the solid-state relay through a pulse signal of the proximity switch;

and 3, transmitting the on-signal of the color set to the picture detection system in a switching value mode by the solid-state relay, and calculating the current speed V of the color set by the picture detection system.

2. The method for controlling the output of a cluster speed signal of a cluster intaglio printing press according to claim 1, characterized in that: the specific process of the step 1 is as follows:

and a selection switch is arranged on a human-computer interface, any color set in the unit type gravure printing machine is selected as a speed signal output color set of the whole machine, and the programmable controller PCC switches on a rising edge signal of a proximity switch of the color set according to the selection of the current color set so as to provide a speed signal for the picture detection system.

3. The method for controlling the output of the set speed signal of the unit-type intaglio printing press according to claim 2, characterized in that: the specific process of the step 2 is as follows:

the proximity switch is fixed on the support of each color set, the proximity switch lights once when a color set plate shaft rotates for one circle, a switch-on signal of the proximity switch is acquired by the PCC control input module on the I/O site of the color set, the switch-on signal of the proximity switch is transmitted to the programmable controller PCC through the HUB HUB, the programmable controller PCC opens the solid relay through the PCC output module when a rising edge pulse of the proximity switch arrives, and closes the solid relay through the PCC output module when a falling edge pulse of the proximity switch arrives.

4. A method of controlling the output of a cluster speed signal for a cluster intaglio printing press according to claim 3, characterized in that: the specific process of the step 3 is as follows:

the solid-state relay transmits signals Pi, P2, P3, …, P (n-1) and Pn of each turn-on of the color group to the picture detection system in the form of switching value, the picture detection system calculates time difference delta T1, delta T2, … and delta Tn-1 of detection signals according to time T1, T2, T3, …, T (n-1) and Tn of each signal acquisition, the picture detection system 8 calculates time difference delta T1, delta T2, delta Tn-1 according to the time difference delta T_iAnd the perimeter L of the roller shaft of the color set of the current equipment calculates the current speed V of the color set_iWherein i is 1, 2, 3, …, n-1, n is greater than or equal to 2.

5. The method for controlling the output of the set speed signal of the unit-type intaglio printing press according to claim 4, wherein: the calculation process of the time difference in the step 3 is as follows:

△T1＝t2-t1

△T2＝t3-t2

…

△Tn-1＝tn-t(n-1)；

the current velocity V of the color group_iThe calculation process is as follows:

V_i＝L/△T_i。

Technical Field

The invention belongs to the technical field of printing machine equipment control, and relates to a control method for color set speed signal output of a unit type gravure printing machine.

Background

The speed signal is needed for the static picture of the unit type photogravure press, a proximity switch is usually installed at a key slot on the transmission side of a third unit of the equipment, the proximity switch is turned on once when the key slot rotates for one circle, the proximity switch transmits a switch signal to a picture detection system, and the picture detection system calculates the current speed of the material film of the equipment according to the plate perimeter and the signal of the proximity switch, so that the photographing frequency is adjusted. The installation mode is not easy to control the length of the lead of different equipment, and the lead is frequently spliced; when some parts of the third unit can not meet the operation condition and need to skip the third color group, the picture detection system can not normally operate, the color group number of the proximity switch needs to be adjusted, and the wire in the wire slot is particularly difficult to adjust.

Disclosure of Invention

The invention aims to provide a control method for the output of a unit type gravure printing machine color unit speed signal, which solves the problems of complex wiring and color unit uniqueness existing when a proximity switch is adopted to transmit the speed signal at present.

The technical scheme adopted by the invention is that the method for controlling the color set speed signal output of the unit type gravure printing machine specifically comprises the following steps:

step 1, determining a speed signal of a picture detection system;

step 2, controlling the opening and closing of the solid-state relay through a pulse signal of the proximity switch;

and 3, transmitting the on-signal of the color set to the picture detection system in a switching value mode by the solid-state relay, and calculating the current speed V of the color set by the picture detection system.

The present invention is also characterized in that,

the specific process of the step 1 is as follows:

and a selection switch is arranged on a human-computer interface, any color set in the unit type gravure printing machine is selected as a speed signal output color set of the whole machine, and the programmable controller PCC switches on a rising edge signal of a proximity switch of the color set according to the selection of the current color set so as to provide a speed signal for the picture detection system.

The specific process of the step 2 is as follows:

the proximity switch is fixed on the support of each color set, the proximity switch lights once when a color set plate shaft rotates for one circle, a switch-on signal of the proximity switch is acquired by the PCC control input module on the I/O site of the color set, the switch-on signal of the proximity switch is transmitted to the programmable controller PCC through the HUB HUB, the programmable controller PCC opens the solid relay through the PCC output module when a rising edge pulse of the proximity switch arrives, and closes the solid relay through the PCC output module when a falling edge pulse of the proximity switch arrives.

The specific process of the step 3 is as follows:

the solid-state relay transmits signals Pi, P2, P3, …, P (n-1) and Pn of each turn-on of the color group to the picture detection system in the form of switching value, the picture detection system calculates time difference delta T1, delta T2, … and delta Tn-1 of detection signals according to time T1, T2, T3, …, T (n-1) and Tn of each signal acquisition, the picture detection system 8 calculates time difference delta T1, delta T2, delta Tn-1 according to the time difference delta T_iAnd the perimeter L of the roller shaft of the color set of the current equipment calculates the current speed V of the color set_iWherein i is 1, 2, 3, …, n-1, n is greater than or equal to 2.

The calculation process of the time difference in step 3 is as follows:

the current velocity V of the color group_iThe calculation process is as follows:

V_i＝L/△T_i。

the invention has the advantages that the speed signal can be selected from a human-computer interface according to actual requirements, the method is convenient and quick, if a certain color set of the equipment fails, the failed color set can be skipped over to select the complete color set speed signal, and the normal operation of the speed detection system cannot be influenced by the failure.

Drawings

FIG. 1 is a schematic structural diagram of a color set proximity switch in a control method for outputting a color set speed signal of a unit type gravure printing machine according to the present invention;

FIG. 2 is an electrical control schematic diagram of a control method for the output of a group speed signal of a unit-type gravure printing machine according to the present invention;

fig. 3 is a diagram of the electrical control system components of the control method for the output of the unit speed signal of the unit type intaglio printing press.

In the figure, 1, a proximity switch, 2, a bracket, 3, a color group version roller shaft, 5, a PCC control input module, 6, a PCC control output module, 7, a solid-state relay, 8, a picture detection system, 9, a human-computer interface, 10, a PCC, 11, a color group I/O station, 12 and a HUB HUB are arranged.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The invention relates to a control method for color set speed signal output of a unit type gravure printing machine, which specifically comprises the following steps: see FIGS. 1-3;

step 1, setting a selection switch on a human-computer interface 9, wherein one color set of the device can be arbitrarily selected to serve as a speed signal output color set of the whole device, and the PCC10 provides a speed signal for the picture detection system 8 according to a rising edge signal of a proximity switch 1 of the current color set selected and switched on.

Step 2, a proximity switch 1 is fixed on a bracket 2 of each color group, the proximity switch 1 is lighted once every time a color group plate shaft 3 rotates for one circle, a PCC control input module 5 on a color group I/O station 11 acquires a turn-on signal of the proximity switch 1, the turn-on signal of the proximity switch 1 is transmitted to a programmable controller PCC10 through a HUB HUB12, the programmable controller PCC10 turns on a solid relay 7 through a PCC output module 6 when a rising edge pulse of the proximity switch 1 arrives, and turns off the solid relay 7 through the PCC output module 6 when a falling edge pulse of the proximity switch 1 arrives;

step 3, the solid-state relay 7 transmits the on signals P1, P2, P3, …, P (n-1) and Pn to the picture detection system 8 in the form of switching quantity, the picture detection system 8 calculates the time difference DeltaT 1, DeltaT 2, … and DeltaTn-1 of the detection signals according to the time T1, T2, T3, …, T (n-1) and Tn of the signals acquired each time, and the picture detection system 8 calculates the time difference DeltaT 1, DeltaT 2, … and DeltaTn-1 according to the time difference DeltaT_iAnd the perimeter L of the roller shaft of the color set of the current equipment calculates the current speed V of the color set_iWherein i is 1, 2, 3, …, n-1, n is greater than or equal to 2.