CN211075142U

CN211075142U - Printed matter detection device

Info

Publication number: CN211075142U
Application number: CN201921937913.0U
Authority: CN
Inventors: 周锋强
Original assignee: Shanghai Eternal Industrial Group Co ltd
Current assignee: Shanghai Eternal Industrial Group Co ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-07-24
Anticipated expiration: 2029-11-08

Abstract

The utility model discloses a printed matter detection device relates to printed matter production technical field, include: the image acquisition device is arranged at the discharge end of the printing stock and outputs an image acquisition signal; the memory is in data connection with the image acquisition device, receives and stores the image acquisition signal and stores the contrast image information; the comparator is in data connection with the memory and is configured to call the comparison image information and the image acquisition signal in the memory, compare the comparison image information and the image acquisition signal and output a difference signal; the controller is in data connection with the comparator, receives the difference signal and outputs an alarm signal if the difference signal is greater than a set value; and the alarm receives and responds to the alarm signal to execute alarm operation. To prior art exist consume the manpower, judge the not high problem of precision, the utility model discloses a full automatization mechanical equipment detects the early warning, not only uses manpower sparingly but also the early warning judges the precision height.

Description

Printed matter detection device

Technical Field

The utility model relates to a printed matter production technical field, more specifically say, it relates to a printed matter detection device.

Background

The ink printing is to print specific ink on a printing stock by adopting corresponding printing equipment, and the printing stock is made of various materials such as paper, plastics, cloth and the like.

In existing printing systems, it is often necessary to provide a plurality of printing units, each of which has a rotatably connected printing roller, the individual printing rollers engaging a single color of coating material to print a particular pattern on a substrate.

In the prior art, due to the reasons of rusting, blocking by foreign matters and the like, accidents of loosening, blocking or clamping of a printing roller occur sometimes, and at the moment, due to the fact that the printing roller is blocked to rotate, ink cannot be normally dipped for printing, and partial patterns of a printing stock are blank; alternatively, the printing roller may be rotated too slowly to pick up insufficient ink, which may result in a lighter pattern on the substrate in the printed area. In reality, the solution to the above problem is: a processor penetrates through a printing stock through naked eyes to judge whether the color of the printing ink pattern is normal, and the mode not only increases the labor cost but also has low judgment accuracy.

SUMMERY OF THE UTILITY MODEL

To prior art exist consume the manpower, judge the not high problem of precision, the utility model aims at providing a printed matter detection device, it has the advantage of practicing thrift the manpower, judging the accuracy.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a print detection apparatus comprising:

the image acquisition device is arranged at the discharge end of the printing stock and outputs an image acquisition signal;

the memory is in data connection with the image acquisition device, receives and stores the image acquisition signal and stores the contrast image information;

the comparator is in data connection with the memory and is configured to call the comparison image information and the image acquisition signal in the memory, compare the comparison image information and the image acquisition signal and output a difference signal;

the controller is in data connection with the comparator, receives the difference signal and outputs an alarm signal if the difference signal is greater than a set value;

and the alarm receives and responds to the alarm signal to execute alarm operation.

Through the technical scheme, the image acquisition device acquires the image color on the printing stock, the corresponding image acquisition signal is acquired, the image acquisition signal is temporarily stored in the memory, the comparator calls the comparison image information and the image acquisition signal in the memory, the comparison image information and the image acquisition signal are compared, the difference signal is output, the controller receives the difference signal, whether the difference signal is greater than the set value or not is judged, if the printing roller is loose, blocked or blocked, the corresponding printing image color on the printed matter is shallow, the data of the difference signal is increased, the difference signal is greater than the set value, then the controller controls the alarm to start the alarm, the rotation fault of the printing roller can be conveniently found in time, manpower is saved, and the early warning judgment precision is high.

Further, the image acquisition device is an AI + image sensor.

By the technical scheme, the color information printed on the printing stock can be conveniently and accurately acquired.

Furthermore, the number of the image acquisition devices is multiple, and the image acquisition devices respectively correspond to different printing positions on the printing stock.

By the technical scheme, the color detection is convenient for the printing positions with different colors on the printing stock.

Further, the alarm is a buzzer.

Through the technical scheme, the voice alarm is adopted.

Further, the alarm is a flashlight.

Through the technical scheme, the flash alarm is adopted.

Furthermore, the alarm is provided with a plurality of alarms, and the alarms are respectively in one-to-one correspondence with the image acquisition devices.

Through the technical scheme, the detection and early warning are carried out on different positions on the printing stock independently.

Further, the printing device also comprises a plurality of printing rollers for printing different positions on the printing stock;

the plurality of alarms are respectively and correspondingly arranged at the plurality of printing rollers.

Through above-mentioned technical scheme, because different printing rollers are responsible for printing different positions on the stock, through the aforesaid setting, be convenient for in time find the printing roller that has problems fast.

Further, the controller is an MCU or an FPGA.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the detection and early warning are carried out through full-automatic mechanical equipment, so that the rotation fault of the printing roller can be found in time conveniently, the labor is saved, and the early warning and judgment precision is high;

(2) further, through setting up a plurality of image acquisition devices and a plurality of alarm, detect the early warning alone to the different positions of stock, be convenient for find trouble printing roller fast, get rid of the printing roller and rotate the trouble.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

fig. 2 is a schematic view of the overall structure of the present embodiment.

Reference numerals: 1. an image acquisition device; 2. a memory; 3. a comparator; 4. a controller; 5. an alarm; 6. and (7) a printing roller.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A printed matter detecting device, as shown in FIGS. 1 and 2, is provided in a printing device, and includes a plurality of printing rollers 6 installed in the printing device for printing on different positions on a printing material, and different printing rollers 6 print inks of different colors on the printing material.

The image acquisition device 1 is arranged at the discharge end of the printing stock and outputs image acquisition signals, the image acquisition device 1 is an AI + image sensor, the image acquisition device 1 is the prior art, the AI + image sensor produced by Kenzhi is adopted, the product website corresponding to the product is https:// www.keyence.com.cn/products/vision/vision-sensor/iv2/index _ pr.jsp, the image acquisition device 1 has an intelligent color image recognition function, and a plurality of image acquisition devices 1 are installed and respectively correspond to different printing positions on the printing stock.

The memory 2 is in data connection with the image acquisition device 1, receives and stores the image acquisition signal and stores the contrast image information, and the memory 2 is a hard disk;

the comparator 3 is in data connection with the memory 2 and is configured to call the comparison image information and the image acquisition signal in the memory 2, compare the comparison image information and the image acquisition signal and output a difference signal;

and the controller 4 is in data connection with the comparator 3, receives the difference signal, outputs an alarm signal if the difference signal is greater than a set numerical value, and is an MCU or an FPGA.

Wherein, the memory 2, the comparator 3 and the controller 4 are all arranged in the same control box.

And the alarm 5 receives and responds to the alarm signal to execute alarm operation, and the alarm 5 is a buzzer or a flash lamp or the combination of the buzzer and the flash lamp. Alarm 5 sets up to a plurality ofly, and a plurality of alarm 5 correspond a plurality of image acquisition device 1 one-to-one respectively, and a plurality of alarms 5 correspond respectively and set up in a plurality of printing roller 6 departments.

In summary, the following steps:

the utility model is operated, the printing stock is printed in the printing device, after different printing rollers 6 dip in the printing ink, the printing ink and the pattern with specific color are printed on the printing stock, the printing stock after printing is output from the discharging end, a plurality of image acquisition devices 1 acquire the image color of different positions on the printing stock to acquire corresponding image acquisition signals, the image acquisition signals are temporarily stored in a memory 2, a comparator 3 retrieves the contrast image information and the image acquisition signals in the memory 2, compares the contrast image information and the image acquisition signals to output difference signals, a controller 4 receives the difference signals to judge whether the difference signals are larger than set values, if the printing rollers 6 are loosened, blocked or blocked, the corresponding printing image color on the printed matter is lighter, the data of the difference signals are increased, the difference signals are larger than the set values, then the controller 4 controls an alarm 5 on the positions corresponding to the printing rollers 6 to start alarm operation, the rotation fault of the printing roller 6 can be conveniently and rapidly eliminated in time.

When the utility model is used, the detection and early warning are carried out through full-automatic mechanical equipment, so that the rotation fault of the printing roller 6 can be found in time conveniently, the labor is saved, and the early warning judgment precision is high; through setting up a plurality of image acquisition devices 1 and a plurality of alarm 5, detect the early warning alone to the different positions of stock, be convenient for find trouble printing roller 6 fast, get rid of printing roller 6 and rotate the trouble.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A printed matter detection device, comprising:

the image acquisition device (1) is arranged at the discharge end of the printing stock and outputs an image acquisition signal;

the memory (2) is in data connection with the image acquisition device (1), receives and stores the image acquisition signal and stores the contrast image information;

the comparator (3) is in data connection with the memory (2) and is configured to call the comparison image information and the image acquisition signal in the memory (2), compare the comparison image information and the image acquisition signal and output a difference signal;

the controller (4) is in data connection with the comparator (3) and receives the difference signal, and if the difference signal is greater than a set value, an alarm signal is output;

and the alarm (5) receives and responds to the alarm signal to execute alarm operation.

2. A print detection apparatus according to claim 1, wherein the image capturing device (1) is an AI + image sensor.

3. A print detector as claimed in claim 2, wherein the image capturing device (1) is provided in a plurality, the plurality of image capturing devices (1) corresponding to different printing positions on the substrate.

4. A print detection device according to claim 3, wherein the alarm (5) is a buzzer.

5. A print detection device according to claim 3, wherein the alarm (5) is a flashing light.

6. A printed matter detection device according to claim 4 or 5, wherein the alarm device (5) is provided in plurality, and the plurality of alarm devices (5) correspond to the plurality of image capturing devices (1) one by one.

7. A print detection apparatus according to claim 6, further comprising a plurality of printing rollers (6) for printing different positions on the substrate;

the plurality of alarms (5) are respectively and correspondingly arranged at the plurality of printing rollers (6).

8. The print detection apparatus according to claim 1, wherein the controller (4) is an MCU or an FPGA.