阅读说明：本技术 Uv打印机打印异常处理方法、设备及打印机 (Printing exception processing method and device for UV printer and printer ) 是由 梅�明 黄中琨 陈艳 于 2019-09-19 设计创作，主要内容包括：本发明提供了一种UV打印机打印异常处理方法、设备及打印机,涉及UV打印机故障检测与处理技术领域。本发明的UV打印机打印异常处理方法包括：获取第一检测信号,计算所述第一检测信号的变化率；当所述第一检测信号的变化率小于速率阀值时开始计时；监测所述计时的计时值,当所述计时值达到预设的时间阀值时关闭UV灯。本发明的UV打印机打印异常处理设备,包括处理器存储器以及存储在所述存储器中的计算机程序指令。本发明的UV打印机包括：UV打印机打印异常处理设备,UV灯,小车,光栅编码器。本发明的UV打印机打印异常处理方法、设备及打印机可以及时准确地检测打印机的设备故障,避免UV灯过度照射引起介质燃烧,防止造成打印机损坏。(The invention provides a printing exception processing method and device for a UV printer and the printer, and relates to the technical field of UV printer fault detection and processing. The printing exception processing method of the UV printer comprises the following steps: acquiring a first detection signal, and calculating the change rate of the first detection signal; starting timing when the change rate of the first detection signal is smaller than a rate threshold value; and monitoring the timing value of the timing, and turning off the UV lamp when the timing value reaches a preset time threshold value. The UV printer print exception handling apparatus of the present invention includes a processor memory and computer program instructions stored in the memory. The UV printer of the present invention comprises: the printing exception handling device of the UV printer comprises a UV lamp, a trolley and a grating encoder. The printing abnormity processing method and equipment of the UV printer and the printer can timely and accurately detect the equipment fault of the printer, avoid medium combustion caused by over irradiation of the UV lamp and prevent the printer from being damaged.)

A printing exception handling method for a UV printer, the method comprising:

s1, acquiring a first detection signal sent by a grating encoder, wherein the first detection signal comprises position information of a printing trolley, and the printing trolley is provided with a UV lamp;

s2, calculating the change rate of the first detection signal;

s3, starting timing when the change rate of the first detection signal is smaller than a rate threshold value;

s4, comparing the change rate of the first detection signal with the rate threshold, if the change rate of the first detection signal is larger than or equal to the rate threshold, ending timing, otherwise, continuing timing;

and S5, monitoring the timing value of the timing, turning off the UV lamp when the timing value reaches a preset time threshold value, and suspending the printing action of the printer.

2. The UV printer printing exception handling method according to claim 1, further comprising, before step S3:

s20, acquiring the output power of the UV lamp;

and S21, determining the speed threshold and/or the time threshold according to the acquired output power of the UV lamp.

3. The UV printer abnormality processing method according to claim 1, further comprising, after step S5:

s6, detecting a reset signal;

s7, acquiring a current first detection signal and the change rate of the first detection signal after detecting the reset signal;

s8, judging the position of the current printing trolley according to the acquired first detection signal, if the current printing trolley is located in the image printing area, comparing the change rate of the current first detection signal with the speed threshold value, if the change rate of the first detection signal is larger than or equal to the speed threshold value, turning on the UV lamp and resuming the execution of the printing action of the printer, and if the change rate of the first detection signal is smaller than the speed threshold value, generating an alarm signal.

4. The method for processing printing exception of UV printer according to claim 1, wherein in step S3, when the change rate of the first detection signal is smaller than the rate threshold, the method further comprises:

s311, acquiring a current irradiation area of the UV lamp;

s312, detecting the temperature of the printing medium in the area according to the acquired area currently irradiated by the UV lamp;

and S313, when the detected temperature of the printing medium is greater than a preset temperature threshold value, turning off the UV lamp and suspending the printing action of the printer.

5. The method for processing printing exception of UV printer according to claim 1, wherein in step S3, when the change rate of the first detection signal is smaller than the rate threshold, the method further comprises:

s321, recording the current position information of the printing trolley detected by the grating encoder;

s322, acquiring irradiation range information of the UV lamp;

s323, determining the area of the printing medium currently irradiated by the UV lamp according to the current position information of the printing trolley and the irradiation range information of the UV lamp, and recording the area information of the printing medium;

and S324, generating an alarm signal.

6. The UV printer abnormality processing method according to any one of claims 1 to 5, further comprising, in step S3, after the rate of change of the first detection signal is smaller than a rate threshold:

s331, reducing the output power of the UV lamp according to the change rate of the first detection signal;

s332, monitoring the change rate of the first detection signal;

and S333, when the change rate of the first detection signal is higher than the rate threshold value, restoring the output power of the UV lamp to a normal value.

7. The UV printer abnormality processing method according to claim 6, characterized in that: in step S331, when the change rate of the first detection signal is smaller than the rate threshold, the output power of the UV lamp is adjusted to make the ratio of the output power of the UV lamp to the change rate of the first detection signal equal to a first preset value.

8. The UV printer printing exception handling method according to any one of claims 1 to 5, wherein in step S3, when the change rate of the first detection signal is smaller than the rate threshold, the method further comprises:

s341, calculating the acceleration a of the printing trolley according to the change rate of the first detection signal;

s342, judging whether the value of a is positive or negative;

s343, if a is a positive value, reducing the output power of the UV lamp, and monitoring the change rate of the first detection signal; when the change rate of the first detection signal is larger than the rate threshold value, the output power of the UV lamp is recovered to a normal value;

and S344, if the value of a is negative, turning off the UV lamp.

A UV printer print exception handling apparatus comprising: at least one processor, at least one memory, and computer program instructions stored in the memory that, when executed by the processor, implement the method of any of claims 1-8.

A UV printer, comprising:

the UV printer print exception handling apparatus of claim 9;

the control signal input end of the UV lamp is electrically connected with the control signal output end of the processor;

printing trolley

And the signal output end of the grating encoder is connected with the signal input end of the processor.

Technical Field

The invention belongs to the technical field of UV printer fault detection and treatment, and particularly relates to a UV printer printing abnormity treatment method, UV printer printing abnormity treatment equipment and a printer.

Background

The traditional solvent-based ink printing needs drying in an air drying or infrared drying mode, and often needs drying time of several minutes or even tens of hours, so that the printing quality problems such as sticking and dirt are easy to generate. And the printing is carried out by adopting UV (Ultraviolet) ink, the ink can be rapidly dried and solidified within a few seconds under the radiation of Ultraviolet light, the obtained printing product has clean plate surface, saturated color, delicate image and high glossiness, is particularly suitable for high-speed printing, and has good adsorption and mechanical properties for various printing materials, so the UV ink printing is widely applied at present.

During the operation of the printer, the UV lamp irradiates within a specified range to cure the ink sprayed on the printing medium, and the temperature of the UV lamp is generally high during the operation. If the printer has sudden abnormal conditions during working, the UV lamp is caused to stop at a certain position on the printer suddenly, and then the fixed area on the printing medium is over-irradiated at the position for a long time, so that the printing medium is burnt, the printer is damaged, and even safety accidents are caused in severe cases.

Disclosure of Invention

In view of the above, the invention provides a method and a device for processing printing abnormity of a UV printer, and a printer, so as to solve the technical problem that the printer is damaged due to the fact that a UV lamp excessively irradiates the same area of a printing medium for a long time and the printing medium is burnt in the prior art because the device fault of the printer cannot be timely and accurately detected.

In a first aspect, the present invention provides a method for processing a printing exception of a UV printer, the method including:

s1, acquiring a first detection signal sent by a grating encoder, wherein the first detection signal comprises position information of a printing trolley, and the printing trolley is provided with a UV lamp;

s2, calculating the change rate of the first detection signal;

s3, starting timing when the change rate of the first detection signal is smaller than a rate threshold value;

s4, comparing the change rate of the first detection signal with the rate threshold, if the change rate of the first detection signal is larger than or equal to the rate threshold, ending timing, otherwise, continuing timing;

and S5, monitoring the timing value of the timing, turning off the UV lamp when the timing value reaches a preset time threshold value, and suspending the printing action of the printer.

Preferably, before step S3, the method further includes:

s20, acquiring the output power of the UV lamp;

and S21, determining the speed threshold and/or the time threshold according to the acquired output power of the UV lamp.

Preferably, after step S5, the method further includes:

s6, detecting a reset signal;

s7, acquiring a current first detection signal and the change rate of the first detection signal after detecting the reset signal;

s8, judging the position of the current printing trolley according to the acquired first detection signal, if the current printing trolley is located in the image printing area, comparing the change rate of the current first detection signal with the speed threshold value, if the change rate of the first detection signal is larger than or equal to the speed threshold value, turning on the UV lamp and resuming the execution of the printing action of the printer, and if the change rate of the first detection signal is smaller than the speed threshold value, generating an alarm signal.

Preferably, in step S3, after the rate of change of the first detection signal is smaller than the rate threshold, the method further includes:

s311, acquiring a current irradiation area of the UV lamp;

s312, detecting the temperature of the printing medium in the area according to the acquired area currently irradiated by the UV lamp;

and S313, when the detected temperature of the printing medium is greater than a preset temperature threshold value, turning off the UV lamp and suspending the printing action of the printer.

Preferably, in step S3, after the rate of change of the first detection signal is smaller than the rate threshold, the method further includes:

s321, recording the current position information of the small printing car detected by the grating encoder;

s322, acquiring irradiation range information of the UV lamp;

s323, determining the area of the printing medium currently irradiated by the UV lamp according to the current position information of the printing trolley and the irradiation range information of the UV lamp, and recording the area information of the printing medium;

and S324, generating an alarm signal.

Preferably, in step S3, after the rate of change of the first detection signal is smaller than the rate threshold, the method further includes:

s331, reducing the output power of the UV lamp according to the change rate of the first detection signal;

s332, monitoring the change rate of the first detection signal;

and S333, when the change rate of the first detection signal is higher than the rate threshold value, restoring the output power of the UV lamp to a normal value.

Preferably, in step S331, after the rate of change of the first detection signal is smaller than the rate threshold, the output power of the UV lamp is adjusted to make the ratio of the output power of the UV lamp to the rate of change of the first detection signal equal to the first preset value.

Preferably, in step S3, when the rate of change of the first detection signal is smaller than the rate threshold, the method further includes:

s341, calculating the acceleration a of the printing trolley according to the change rate of the first detection signal;

s342, judging whether the value of a is positive or negative;

s343, if a is a positive value, reducing the output power of the UV lamp, monitoring the change rate of the first detection signal, and when the change rate of the first detection signal is greater than a rate threshold value, recovering the output power of the UV lamp to be a normal value;

and S344, if the a is a negative value, turning off the UV lamp.

In a second aspect, the present invention provides a UV printer print exception handling apparatus comprising: at least one processor, at least one memory, and computer program instructions stored in the memory that, when executed by the processor, implement the method of the first aspect.

In a third aspect, the present invention provides a UV printer comprising:

the UV printer printing exception handling apparatus of the second aspect;

the control signal input end of the UV lamp is electrically connected with the control signal output end of the processor;

a trolley is provided.

And the signal output end of the grating encoder is connected with the signal input end of the processor.

Has the advantages that: the printing abnormity processing method and equipment of the UV printer and the printer can rapidly judge the running condition of the trolley by acquiring the signal change rate of the grating encoder. And meanwhile, when the change rate is lower than a preset threshold value, timing is triggered, the fault condition of the printer is rapidly and accurately judged by combining the abnormal duration of the change rate of the grating encoder signal, the judgment process is simple and accurate, and a subsequent program can immediately take corresponding protection measures according to the judgment result. Therefore, the technical scheme of the invention can accurately judge the fault condition of the printer in advance, and takes protective measures before the temperature of the printing medium is too high according to the judgment result, thereby effectively avoiding the damage to the printer and greatly reducing the damage rate of the printer equipment caused by the fault.

Drawings

Fig. 1 is a flowchart of a printer print exception handling method according to embodiment 1 of the present invention.

Fig. 2 is a flowchart of a printer print exception handling method according to embodiment 3 of the present invention.

Fig. 3 is a flowchart of a printer print exception handling method according to embodiment 4 of the present invention.

Fig. 4 is a flowchart of a printer print exception handling method according to embodiment 5 of the present invention.

Fig. 5 is a flowchart of a printer print exception handling method according to embodiment 6 of the present invention.

Fig. 6 is a flowchart of a printer print exception handling method according to embodiment 8 of the present invention.

Fig. 7 is a block diagram of the structure of a UV printer printing exception handling apparatus of embodiment 9 of the present invention.

Fig. 8 is a block diagram of the UV printer of embodiment 10 of the present invention.

Detailed Description

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

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In case of conflict, the embodiments of the present invention and the various features of the embodiments may be combined with each other within the scope of the present invention.