阅读说明：本技术 一种ci柔性版印刷设备连续运行切换订单的控制方法 (Control method for continuous operation switching order of CI (compact element) flexographic printing equipment ) 是由 王海军 于 2020-07-16 设计创作，主要内容包括：本发明公开了一种CI柔性版印刷设备连续运行切换订单的控制方法,具体包括如下步骤：设订单数为M；对需要印刷的订单进行排序；选取排序在第一位的订单作为当前印刷订单,选取当前订单的下一个订单为预印刷订单；在当前印刷订单对应的色组单元上分别安装版辊套筒和网辊套筒,在预印刷订单对应的色组单元上分别安装版辊套筒和网辊套筒；对当前印刷订单进行印刷；当前订单印刷完成后,在印刷设备不停机情况下对预印刷订单进行印刷,此时,预印刷订单作为当前印刷订单开始进行印刷工作；本发明能够使CI柔性版印刷设备在正常印刷时,可以随时切入另一套订单参数进行印刷,缩短印刷时间,提高生产率。(The invention discloses a control method for continuous operation switching orders of CI (compact element) flexographic printing equipment, which specifically comprises the following steps: setting the number of orders as M; ordering the orders to be printed; selecting the order ordered at the first position as a current printing order, and selecting the next order of the current order as a preprinting order; respectively installing a plate roller sleeve and a screen roller sleeve on a color set unit corresponding to a current printing order, and respectively installing a plate roller sleeve and a screen roller sleeve on a color set unit corresponding to a pre-printed order; printing a current printing order; after the current order printing is finished, printing the preprinted order under the condition that the printing equipment does not stop, and starting printing work by taking the preprinted order as the current printing order at the moment; the invention can cut in another set of order parameters to print at any time when the CI flexographic printing equipment normally prints, thereby shortening the printing time and improving the productivity.)

1. A control method for continuous operation and order switching of CI flexographic printing equipment is characterized in that: the method specifically comprises the following steps:

step 1, setting the number of orders as M and the maximum color group number of printing equipment as N; simultaneously installing a color set unit corresponding to the current printing order and the pre-printed order on the printing equipment; step 2, ordering the orders to be printed;

step 3, based on the sorting result of the step 2, selecting the order sorted at the first order as the current printing order, and selecting the next order of the current order as a pre-printed order;

step 4, respectively installing a plate roller sleeve and a mesh roller sleeve on the color set unit corresponding to the current printing order, and respectively installing the plate roller sleeve and the mesh roller sleeve on the color set unit corresponding to the pre-printed order;

step 5, printing the current printing order;

step 6, after the current order printing is finished, printing the preprinted order under the condition that the printing equipment does not stop, and at the moment, starting printing the preprinted order as the current printing order;

step 7, disassembling the printing roller sleeve and the screen roller sleeve on the printed color group unit, taking the next order after the current printing order as a pre-printed order, and respectively installing the printing roller sleeve and the screen roller sleeve on the color group unit corresponding to the pre-printed order to prepare before printing;

and 8, repeatedly executing the steps 5-7 until all the M orders are printed.

2. The method for controlling continuous operation of order switching of CI flexographic printing apparatus according to claim 1, characterized in that: in the step 1, the sum of the number of color groups of the current printing order and the number of color groups of the pre-printed order is less than or equal to N.

3. The method for controlling continuous operation of order switching of CI flexographic printing apparatus according to claim 1, characterized in that: the specific process of the step 5 is as follows:

step 5.1, detecting whether a printing roller sleeve on a color set unit of a current printing order is installed in place through a color set sensor arranged at the end part of a roller core shaft, executing step 5.2 after the printing roller sleeve is in place, and prompting and warning a human-computer interface on printing equipment if the printing roller sleeve is not in place;

step 5.2, the printing equipment prints the current order and judges the plate roller speed V of the current order₃V with current printing apparatus_{Master and slave}If the main speeds are consistent, performing the laminating operation of the plate roller and the printing material, otherwise, not allowing the laminating operation, and displaying warning on a human-computer interface of the printing equipment;

and 5.3, solving the printing length L of the current printing order, and when the length L reaches the preset printing length and is equal, prompting alarm information by the printing equipment, finishing printing the current printing order and preparing to switch to the preprinted order.

4. The method for controlling continuous operation of switching orders for CI flexographic printing apparatus according to claim 3, characterized in that: the specific process of the step 5.2 is as follows:

step 5.2.1, solving the current linear velocity V of the printing equipment according to the following formula (1), wherein the unit is as follows: degree/s;

V＝V₁*1000*360/60/C (1)；

wherein, V₁After the printing equipment is started, the target speed of the printing equipment is in the unit of m/min;

c is the circumference of a central roller of the printing equipment, and the unit is mm;

step 5.2.2, solving the current main speed V of the printing equipment according to the following formula (2)_{Master and slave}The unit is: m/min:

V_{master and slave}＝V₂*60/360*C/1000 (2)；

Wherein, V₂After the printing equipment runs at the linear velocity V, the feedback speed of an encoder at the central roller of the printing equipment is represented by the following unit: degree/s;

step 5.2.3, according toFormula (3) for calculating the roller speed V of the color set unit of the current printing order₃In m/min:

V₃＝V₂*60/360*C₁/1000*C/C₁(3)；

wherein, C₁The perimeter of the current printing order is in mm;

step 5.2.4, judging V obtained in step 5.2.2_{Master and slave}With V obtained in step 5.2.3₃And if the printing materials are consistent, performing the laminating operation of the plate roller and the printing materials, otherwise, not allowing the laminating operation, and displaying warning on a human-computer interface of the printing equipment.

5. The method for controlling continuous operation of switching orders for CI flexographic printing apparatus according to claim 4, characterized in that: the specific process of the step 5.3 is as follows:

when the color group sensor detects a magnetic signal of the shaft head of the sleeve of the plate roller, the incoming lines of the circumferential length of the sleeve are accumulated, the printing length L of the current printing order is calculated, the unit is m, and the calculation process is shown in the following formula (4):

L＝C₁*N/1000 (4)；

and N is the number of the rotating circles of the printing roller of the color set unit of the current printing order counted by the color set sensor.

6. The method for controlling continuous operation of switching orders for CI flexographic printing apparatus according to claim 5, characterized in that: the specific process of the step 6 is as follows:

step 6.1, when the pre-printed order is switched to the current printed order, detecting whether a printing roller sleeve on a color set unit of the order is installed in place through a color set sensor arranged at the end part of a core shaft of a printing roller, executing step 6.2 after the order is in place, and prompting and warning a human-computer interface on printing equipment if the order is not in place;

step 6.2, the current main speed of the printing equipment is changed from the previous V_{Master and slave}Switching to a preset switching speed value V₆The unit is m/min, and the unit of the current linear speed V' of the printing equipment is obtained according to the following formula (5): degree/s:

V`＝V₆*1000*360/60/C (5)；

step 6.3, calculating the current main speed V' of the printing equipment according to the following formula (6)_{Master and slave}In m/min:

V`<sub>master and slave</sub>＝V`₂*60/360*C/1000 (6)；

Wherein, V ″₂After the printing device runs at the linear velocity V', the speed fed back by the encoder at the central roller of the printing device is given by: degree/s;

step 6.4, at V_{Master and slave}And V₆If they are equal, the plate roller velocity V' of the current print order is calculated according to the following formula (7)₃The unit is: m/min;

V`<sub>3</sub>＝V`₂*60/360*C`<sub>1</sub>/1000*C/C`₁(7)；

step 6.5, V' is processed₃And V_{Master and slave}Comparing, when V ″)₃And V_{Master and slave}And if the printing materials are consistent, performing the laminating operation of the plate roller and the printing materials, otherwise, not allowing the laminating operation, and displaying warning on a human-computer interface of the printing equipment.

Technical Field

The invention belongs to the technical field of control of CI (contact type) flexographic printing equipment, and relates to a control method for continuously operating and switching orders of the CI flexographic printing equipment.

Background

At present, because the market of the whole packaging industry changes rapidly, the packaging design has own enterprise characteristic culture, and in order to better occupy the market and cater to the market, the enterprise also continuously changes the product packaging. The volume of short orders placed in such large environment markets has increased, causing some packaging manufacturers to lack sufficient personnel, equipment, and time, resulting in failure to meet customer needs. Therefore, it is desirable to provide a printing apparatus control method capable of realizing switching of printed products without shutdown, such a control method being capable of reasonably arranging operation apparatuses, personnel, and time, and greatly improving productivity.

Disclosure of Invention

The invention aims to provide a control method for continuously operating and switching orders of CI (central printing) flexographic printing equipment, which can cut in another set of order parameters to print at any time when the CI flexographic printing equipment normally prints, thereby shortening the printing time and improving the productivity.

The invention adopts the technical scheme that the control method for the continuous operation switching order of the CI flexographic printing equipment specifically comprises the following steps:

step 1, setting the number of orders as M and the maximum color group number of printing equipment as N; simultaneously installing a color set unit corresponding to the current printing order and the pre-printed order on the printing equipment; step 2, ordering the orders to be printed;

step 3, based on the sorting result of the step 2, selecting the order sorted at the first order as the current printing order, and selecting the next order of the current order as a pre-printed order;

step 4, respectively installing a plate roller sleeve and a mesh roller sleeve on the color set unit corresponding to the current printing order, and respectively installing the plate roller sleeve and the mesh roller sleeve on the color set unit corresponding to the pre-printed order;

step 5, printing the current printing order;

step 6, after the current order printing is finished, printing the preprinted order under the condition that the printing equipment does not stop, and at the moment, starting printing the preprinted order as the current printing order;

step 7, disassembling the printing roller sleeve and the screen roller sleeve on the printed color group unit, taking the next order after the current printing order as a pre-printed order, and respectively installing the printing roller sleeve and the screen roller sleeve on the color group unit corresponding to the pre-printed order to prepare before printing;

and 8, repeatedly executing the steps 5-7 until all the M orders are printed.

The present invention is also characterized in that,

in step 1, the sum of the color group number of the current printing order and the color group number of the pre-printing order is less than or equal to N.

The specific process of the step 5 is as follows:

step 5.1, detecting whether a printing roller sleeve on a color set unit of a current printing order is installed in place through a color set sensor arranged at the end part of a roller core shaft, executing step 5.2 after the printing roller sleeve is in place, and prompting and warning a human-computer interface on printing equipment if the printing roller sleeve is not in place;

step 5.2, the printing equipment prints the current order and judges the plate roller speed V of the current order₃V with current printing apparatus_{Master and slave}If the main speeds are consistent, performing the laminating operation of the plate roller and the printing material, otherwise, not allowing the laminating operation, and displaying warning on a human-computer interface of the printing equipment;

and 5.3, solving the printing length L of the current printing order, and when the length L reaches the preset printing length and is equal, prompting alarm information by the printing equipment, finishing printing the current printing order and preparing to switch to the preprinted order.

The specific process of the step 5.2 is as follows:

step 5.2.1, solving the current linear velocity V of the printing equipment according to the following formula (1), wherein the unit is as follows: degree/s;

V＝V₁*1000*360/60/C (1)；

wherein, V₁After the printing equipment is started, the target speed of the printing equipment is in the unit of m/min;

c is the circumference of a central roller of the printing equipment, and the unit is mm;

step 5.2.2, solving the current main speed V of the printing equipment according to the following formula (2)_{Master and slave}The unit is: m/min:

V_{master and slave}＝V₂*60/360*C/1000 (2)；

Wherein, V₂After the printing equipment runs at the linear velocity V, the feedback speed of an encoder at the central roller of the printing equipment is represented by the following unit: degree/s;

step 5.2.3, solving the roller speed V of the color set unit of the current printing order according to the following formula (3)₃In m/min:

V₃＝V₂*60/360*C₁/1000*C/C₁(3)；

wherein, C₁The perimeter of the current printing order is in mm;

step 5.2.4, judging V obtained in step 5.2.2_{Master and slave}With V obtained in step 5.2.3₃And if the printing materials are consistent, performing the laminating operation of the plate roller and the printing materials, otherwise, not allowing the laminating operation, and displaying warning on a human-computer interface of the printing equipment.

The specific process of the step 5.3 is as follows:

when the color group sensor detects a magnetic signal of the shaft head of the sleeve of the plate roller, the incoming lines of the circumferential length of the sleeve are accumulated, the printing length L of the current printing order is calculated, the unit is m, and the calculation process is shown in the following formula (4):

L＝C₁*N/1000 (4)；

and N is the number of the rotating circles of the printing roller of the color set unit of the current printing order counted by the color set sensor.

The specific process of the step 6 is as follows:

step 6.1, when the pre-printed order is switched to the current printed order, detecting whether a printing roller sleeve on a color set unit of the order is installed in place through a color set sensor arranged at the end part of a core shaft of a printing roller, executing step 6.2 after the order is in place, and prompting and warning a human-computer interface on printing equipment if the order is not in place;

step 6.2, the current main speed of the printing equipment is changed from the previous V_{Master and slave}Switching to a preset switching speed value V₆The unit is m/min, and the current linear velocity V of the printing equipment is obtained according to the following formula (5)^、The unit is: degree/s:

V^、＝V₆*1000*360/60/C (5)；

step 6.3, calculating the current main speed V of the printing device according to the following formula (6)^、 _{Master and slave}In m/min:

V^、 _{master and slave}＝V^、 ₂*60/360*C/1000 (6)；

Wherein, V^、 ₂At a linear velocity V for printing apparatus^、After operation, the speed fed back by the encoder at the central cylinder of the printing apparatus is given by: degree/s;

step 6.4, at V^、 _{Master and slave}And V₆If they are equal, the plate roller speed V of the current print order is calculated according to the following formula (7)^、 ₃The unit is: m/min;

V^、 ₃＝V^、 ₂*60/360*C^、 ₁/1000*C/C^、 ₁(7)；

step 6.5, mixing V^、 ₃And V^、 _{Master and slave}Making a comparison when V^、 ₃And V^、 _{Master and slave}And if the printing materials are consistent, performing the laminating operation of the plate roller and the printing materials, otherwise, not allowing the laminating operation, and displaying warning on a human-computer interface of the printing equipment.

The control method for switching orders during continuous operation of the CI flexographic printing equipment has the advantages that by setting the switching speed, after a first order is printed, the operating speed of the printing equipment is reduced to the switching speed, the printing equipment is smoothly switched to printing a second order, and when the equipment executes a current order, the unit printing roller of the previous order can be removed and replaced at the same time to prepare for the next order. The invention can realize reasonable arrangement of printing orders and personnel, improve the utilization rate of equipment and improve the production efficiency.

Drawings

FIG. 1 is a schematic structural diagram of a printing device in the control method for switching orders of continuous operation of CI flexographic printing devices according to the present invention.

In the figure, 1 is a central cylinder, 2 is a plate roller, 3 is a mesh roller, and 4 is a printing material.

Detailed Description

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

The invention discloses a control method for continuous operation and order switching of CI (compact element) flexographic printing equipment, which is characterized by comprising the following steps of: the method specifically comprises the following steps:

step 1, setting the number of orders as M and the maximum color group number of printing equipment as N; simultaneously installing a color set unit corresponding to the current printing order and the pre-printed order on the printing equipment; step 2, ordering the orders to be printed;

the sum of the color group number of the current printing order and the color group number of the pre-printing order is less than or equal to N.

Step 3, based on the sorting result of the step 2, selecting the order sorted at the first order as the current printing order, and selecting the next order of the current order as a pre-printed order;

step 4, respectively installing a plate roller sleeve and a mesh roller sleeve on the color set unit corresponding to the current printing order, and respectively installing the plate roller sleeve and the mesh roller sleeve on the color set unit corresponding to the pre-printed order;

step 5, printing the current printing order;

the specific process of the step 5 is as follows:

step 5.1, detecting whether a printing roller sleeve on a color set unit of a current printing order is installed in place through a color set sensor arranged at the end part of a roller core shaft, executing step 5.2 after the printing roller sleeve is in place, and prompting and warning a human-computer interface on printing equipment if the printing roller sleeve is not in place;

step 5.2, the printing equipment prints the current order and judges the plate roller speed V of the current order₃V with current printing apparatus_{Master and slave}If the main speeds are consistent, performing the laminating operation of the plate roller and the printing material, otherwise, not allowing the laminating operation, and displaying warning on a human-computer interface of the printing equipment;

the specific process of the step 5.2 is as follows:

step 5.2.1, solving the current linear velocity V of the printing equipment according to the following formula (1), wherein the unit is as follows: degree/s;

V＝V₁*1000*360/60/C (1)；

wherein, V₁After the printing equipment is started, the target speed of the printing equipment is in the unit of m/min;

c is the circumference of a central roller of the printing equipment, and the unit is mm;

step 5.2.2, solving the current main speed V of the printing equipment according to the following formula (2)_{Master and slave}The unit is: m/min:

V_{master and slave}＝V₂*60/360*C/1000 (2)；

Wherein, V₂After the printing equipment runs at the linear velocity V, the feedback speed of an encoder at the central roller of the printing equipment is represented by the following unit: degree/s;

step 5.2.3, solving the roller speed V of the color set unit of the current printing order according to the following formula (3)₃In m/min:

V₃＝V₂*60/360*C₁/1000*C/C₁(3)；

wherein, C₁The perimeter of the current printing order is in mm;

step 5.2.4, judging V obtained in step 5.2.2_{Master and slave}With V obtained in step 5.2.3₃And if the printing materials are consistent, performing the laminating operation of the plate roller and the printing materials, otherwise, not allowing the laminating operation, and displaying warning on a human-computer interface of the printing equipment.

And 5.3, solving the printing length L of the current printing order, and when the length L reaches the preset printing length and is equal, prompting alarm information by the printing equipment, finishing printing the current printing order and preparing to switch to the preprinted order.

The specific process of the step 5.3 is as follows:

when the color group sensor detects a magnetic signal of the shaft head of the sleeve of the plate roller, the incoming lines of the circumferential length of the sleeve are accumulated, the printing length L of the current printing order is calculated, the unit is m, and the calculation process is shown in the following formula (4):

L＝C₁*N/1000 (4)；

and N is the number of the rotating circles of the printing roller of the color set unit of the current printing order counted by the color set sensor.

Step 6, after the current order printing is finished, printing the preprinted order under the condition that the printing equipment does not stop, and at the moment, starting printing the preprinted order as the current printing order;

the specific process of the step 6 is as follows:

step 6.1, when the pre-printed order is switched to the current printed order, detecting whether a printing roller sleeve on a color set unit of the order is installed in place through a color set sensor arranged at the end part of a core shaft of a printing roller, executing step 6.2 after the order is in place, and prompting and warning a human-computer interface on printing equipment if the order is not in place;

step 6.2, the current main speed of the printing equipment is changed from the previous V_{Master and slave}Switching to a preset switching speed value V₆The unit is m/min, and the current linear velocity V of the printing equipment is obtained according to the following formula (5)^、The unit is: degree/s:

V^、＝V₆*1000*360/60/C (5)；

step 6.3, calculating the current main speed V of the printing device according to the following formula (6)^、 _{Master and slave}In m/min:

V^、 _{master and slave}＝V^、 ₂*60/360*C/1000 (6)；

Wherein, V^、 ₂At a linear velocity V for printing apparatus^、After operation, the speed fed back by the encoder at the central cylinder of the printing apparatus is given by: degree/s;

step 6.4, at V^、 _{Master and slave}And V₆If they are equal, the plate roller speed V of the current print order is calculated according to the following formula (7)^、 ₃The unit is: m/min;

V^、 ₃＝V^、 ₂*60/360*C^、 ₁/1000*C/C^、 ₁(7)；

C^、 ₁after the preprinted order is switched to the current printed order, the perimeter of the current printed order is in mm;

step 6.5, mixing V^、 ₃And V^、 _{Master and slave}Making a comparison when V^、 ₃And V^、 _{Master and slave}And if the printing materials are consistent, performing the laminating operation of the plate roller and the printing materials, otherwise, not allowing the laminating operation, and displaying warning on a human-computer interface of the printing equipment.

Step 7, disassembling the printing roller sleeve and the screen roller sleeve on the printed color group unit, taking the next order after the current printing order as a pre-printed order, and respectively installing the printing roller sleeve and the screen roller sleeve on the color group unit corresponding to the pre-printed order to prepare before printing;

and 8, repeatedly executing the steps 5-7 until all the M orders are printed.