CN214873444U

CN214873444U - Slurry supplementing equipment and elliptical printing machine

Info

Publication number: CN214873444U
Application number: CN202120858678.9U
Authority: CN
Inventors: 陈洁辉; 周华; 冀万六; 钟球盛; 钟翔
Original assignee: Guangzhou Cnding Robot Co ltd
Current assignee: Guangzhou Cnding Robot Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-11-26
Anticipated expiration: 2031-04-23

Abstract

The utility model provides a thick liquids make up equipment and elliptical printing machine, thick liquids make up equipment and include: the device comprises an image acquisition device for acquiring a detection image with slurry in a screen frame, an image processing device for acquiring the gray value of the slurry in the detection image and judging whether the gray value of the slurry is in a preset range, and a slurry storage device for conveying the slurry to the screen frame based on the judgment result of the image processing device, wherein a discharge port of the slurry storage device is provided with a pipeline for being connected with the screen frame, and the image processing device is respectively connected with the slurry storage device and the image acquisition device. Compared with the prior art, the utility model discloses a thick liquids make-up equipment can detect whether thick liquids are too few in the screen frame to make up thick liquids in the screen frame, not only efficient, also saved the cost of labor, can improve elliptical printing machine's degree of automation.

Description

Slurry supplementing equipment and elliptical printing machine

Technical Field

The utility model relates to a printing technology field, concretely relates to thick liquids make up equipment and elliptical printing machine.

Background

When the elliptical printing machine is used for printing, the size on the screen frame needs to be scraped by the scraper on the printing head, and the size is extruded to a printing stock from the pattern holes on the screen frame, so that printing is realized, and if the size on the screen frame is not enough, printing cannot be performed. At present, the printing industry depends on operators to check whether the size on the screen frame is enough or not, and the sequential checking is time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the shortcoming and not enough among the prior art, provide a thick liquids supplementary equipment and oval calico printing machine.

An embodiment of the utility model provides a thick liquids make-up equipment, include: the device comprises an image acquisition device for acquiring a detection image with slurry in a screen frame, an image processing device for acquiring the gray value of the slurry in the detection image and judging whether the gray value of the slurry is in a preset range, and a slurry storage device for conveying the slurry to the screen frame based on the judgment result of the image processing device, wherein a discharge port of the slurry storage device is provided with a pipeline for being connected with the screen frame, and the image processing device is respectively connected with the slurry storage device and the image acquisition device.

Compared with the prior art, the utility model discloses a thick liquids make-up equipment can detect whether thick liquids are too few in the screen frame to make up thick liquids in the screen frame, not only efficient, also saved the cost of labor, can improve elliptical printing machine's degree of automation.

Further, the slurry storage device comprises a body and an air pump, wherein an air port connected with the air pump is formed in the body.

Further, a detector for detecting the residual amount of the slurry is arranged in the slurry storage.

Further, the slurry replenishing equipment further comprises a timer connected with the image acquisition device.

Further, the slurry storage device is further provided with a fixing frame, the fixing frame extends towards the outside of the slurry storage device, and the image acquisition device is arranged on the fixing frame.

Further, the fixing frame is rotationally connected with the slurry storage device.

Further, an accommodating cavity is arranged in the slurry storage device, and a transparent part is formed on the side wall of the accommodating cavity.

Further, the slurry supplementing device comprises a plurality of slurry storages for conveying slurry corresponding to the colors of the slurry in the detection images into the screen frame, and different slurry storages correspondingly contain different colors of slurry.

An embodiment of the utility model provides an elliptical printing machine, include: the printing device comprises a printing head and a screen frame which are arranged on the frame, and the slurry storage is connected with the screen frame.

Further, the elliptical printing machine further comprises a counter used for counting the number of times the printing head finishes printing, and the counter is connected with the image acquisition device and the printing head respectively.

In order to make the present invention more clearly understood, the following description will be made in conjunction with the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of a paste replenishment apparatus and a printing device according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a slurry replenishing apparatus according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a slurry reservoir according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an elliptical printing machine according to another embodiment of the present invention.

Description of reference numerals:

10. a slurry storage; 11. a body; 12. a gas port; 13. a slurry inlet; 14. a slurry outlet; 15. a fixed mount; 16. a detector; 17; an accommodating cavity; 18. a transparent portion; 20. an image acquisition device; 30. a frame; 31. a printing platen; 32. a print head; 33. and (6) screen frames.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, which is a schematic structural diagram of a paste replenishing apparatus and a printing device according to an embodiment of the present invention, the paste replenishing apparatus includes: the device comprises a slurry storage 10, an image acquisition device 20 and an image processing device, wherein the image processing device is respectively connected with the slurry storage 10 and the image acquisition device 20, and a discharge hole of the slurry storage is provided with a pipeline used for being connected with a screen frame.

The image acquisition device 20 is used for acquiring a detection image with the paste in the screen frame 33, the image processing device is used for acquiring a gray value of the paste in the detection image, the printing part in the screen frame 33 is transparent and the paste can block light because the printing area in the screen frame 33 is an area formed by drawing a silk thread, and the pattern mesh to be printed is formed by closing part of the mesh of the printing area, so that the gray value of the position with the paste and the position without the paste in the detection image can be different, the position with the paste is darker, the gray value is lower, the position without the paste is brighter and the gray value is higher, the amount of the paste in the screen frame 33 can be judged by determining whether the gray value of the paste in the detection image is within a preset range, and the preset range can be the gray value of the paste acquired under the condition that the amount of the paste meets the requirement, thereby determining a preset range, the paste reservoir 10 being adapted to deliver paste into the frame 33 when the grey value of the paste is below the preset range, avoiding that insufficient paste is printed in the frame 33 of the elliptical printing machine. The image acquisition device can acquire a detection image of the slurry in a mode that a plurality of sensors correspondingly acquire R, G, B voltage value combinations, the image processing device comprises a processor, a comparator and a storage which are sequentially connected, the processor receives a R, G, B voltage signal from the image acquisition device and generates a gray value voltage signal, the comparator receives the gray value voltage signal and compares the gray value voltage value with a preset threshold, and if the gray value voltage signal is lower than the preset threshold, the condition that the slurry in the screen frame is insufficient and the slurry needs to be conveyed is judged.

In some alternative embodiments, the image processing device is configured to obtain a printing area of the screen frame 33 in the detected image, determine a first average gray value of the printing area, where the gray value of the paste is the first average gray value of the printing area, determine whether the first average gray value is within the preset range, and after the paste is spread on the printing area by the doctor blade, if the paste at a certain position of the printing area is too little, the printing area may have a portion where the paste is not enough to be printed, which may result in the portion where the printing area may not be successfully printed due to lack of the paste, so as to determine whether the paste is enough based on whether the first average gray value of the printing area is within the preset range. The slurry storage 10 is configured to deliver slurry into the frame 33 when the first average gray-scale value is lower than the preset range.

In some optional embodiments, the slurry replenishing apparatus further includes a timer connected to the image capturing device 20, and when the timer times to reach a preset time, the image capturing device 20 obtains a detection image with the slurry in the screen frame 33, and then the timer is cleared and performs the next time counting, so that the slurry in the screen frame 33 is detected once every other preset time, and the online monitoring of the slurry is realized, and the automation degree is high. The preset time may be determined according to the amount of the paste consumed by the printing apparatus per unit time.

Referring to fig. 2, which is a schematic structural diagram of a slurry replenishing device according to an embodiment of the present invention, since the screen frame 33 may be printed with slurries of different colors after replacement, it is necessary to perform corresponding replenishment according to an actual color of the slurry in the actual screen frame 33, and therefore, in some optional implementations, the image processing apparatus is further configured to determine the color of the slurry in the detection image, wherein the color of the slurry can be determined by converting the detection image into an RGB image, without being limited to this example; the slurry replenishing device comprises a plurality of the slurry storages 10, different slurry storages 10 correspondingly contain different colors of slurry, and when the gray value of the slurry is lower than the preset range, the slurry storages 10 containing the slurry corresponding to the color of the slurry in the detection image convey the slurry into the screen frame 33.

Referring to fig. 3, which is a cross-sectional view of a slurry storage according to an embodiment of the present invention, in some optional embodiments, the slurry storage 10 includes a body 11 and an air pump, the body 11 is provided with an air port 12, a feeding port 13, and a discharging port 14, which are connected to the air pump, and the slurry storage 10 pushes the slurry in the body 11 out of the discharging port 14 through air pressure. It should be noted that the slurry storage 10 may adopt a suitable conveying method according to actual needs, for example, a water pump may be used to directly pump the slurry, or a push rod may be used to extrude the slurry.

In some optional embodiments, a fixing frame 15 is further disposed on the slurry storage 10, the fixing frame 15 extends outward from the slurry storage 10, and the image capturing device 20 is disposed on the fixing frame 15 to facilitate installation of the image capturing device 20. Of course, in practical applications, the image capturing device 20 may be disposed on a printing device of the elliptical printing machine, such as the print head 32 of the printing device, because the image capturing device 20 needs to capture an image of the slurry in the frame 33. Preferably, the holder 15 is rotatably connected to the slurry reservoir 10 such that the image capture device 20 can be adjusted in position by rotating the holder 15.

In some alternative embodiments, a detector 16 for detecting the residual amount of the slurry is disposed in the slurry storage 10, and the detector 16 may detect the residual amount of the slurry by detecting the liquid level in the slurry storage 10 or by detecting the gravity of the slurry, without being limited thereto.

In some optional embodiments, a containing cavity 17 is arranged in the slurry storage, a transparent part 18 is formed on a side wall of the containing cavity 17, and the transparent part 18 enables a worker to check the condition, color and residual amount of the slurry in the containing cavity 17, so that the worker can check through the transparent part 18 when the slurry needs to be changed. In addition, a mark line can be arranged on the transparent part 18, which is beneficial to more accurately judging the residual amount of the sizing agent by naked eyes. When the slurry reservoir comprises a body 11, the receiving chamber 17 is arranged in the body 11.

Referring to fig. 4, which is a schematic structural diagram of an elliptical printing machine according to another embodiment of the present invention, the above-mentioned paste replenishing apparatus can be applied to an elliptical printing machine, and the elliptical printing machine includes: the printing device comprises a machine frame 30, an oval guide rail arranged on the machine frame 30, a plurality of printing platens 31 arranged on the oval guide rail, a driving mechanism for driving the printing platens 31 to move along the oval guide rail, a plurality of printing devices sequentially arranged along the oval guide rail and the paste replenishing equipment, wherein the printing devices comprise a printing head 32 and a screen frame 33 arranged on the machine frame 30, and the paste storage device 10 is connected with the screen frame 33.

In some optional embodiments, the elliptical printing machine further includes a counter, the counter is connected to the image acquisition device 20 and the printing head 32, the counter is configured to count the number of times the printing head 32 completes printing, when the number of times the printing head 32 completes printing reaches a preset number, the image acquisition device 20 obtains a detection image with the slurry in the screen frame 33, so that the printing head 32 consumes a certain amount of slurry every certain number of printing times, monitoring of the slurry is realized by detecting the number of times the printing head 32 prints, thereby avoiding an excessive amount of slurry, and improving the automation degree of the apparatus. The preset number of times may be determined based on the amount of time each print head 32 consumes to complete printing.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A slurry replenishing apparatus, characterized by comprising: the device comprises an image acquisition device for acquiring a detection image with slurry in a screen frame, an image processing device for acquiring a gray value of the slurry in the detection image and a slurry storage device for conveying the slurry into the screen frame based on the gray value, wherein a discharge port of the slurry storage device is provided with a pipeline for being connected with the screen frame, and the image processing device is respectively connected with the slurry storage device and the image acquisition device.

2. A slurry replenishing apparatus according to claim 1, characterized in that: the slurry storage device comprises a body and an air pump, wherein the body is provided with an air port connected with the air pump.

3. A slurry replenishing apparatus according to claim 1, characterized in that: and a detector for detecting the residual amount of the slurry is arranged in the slurry storage.

4. A slurry replenishing apparatus according to claim 1, characterized in that: the slurry replenishing equipment further comprises a timer connected with the image acquisition device.

5. A slurry replenishing apparatus according to claim 1, characterized in that: the slurry storage device is further provided with a fixing frame, the fixing frame extends towards the outside of the slurry storage device, and the image acquisition device is arranged on the fixing frame.

6. A slurry replenishing apparatus according to claim 5, characterized in that: the fixing frame is rotationally connected with the slurry storage device.

7. A slurry replenishing apparatus according to claim 1, characterized in that: the slurry storage device is internally provided with a containing cavity, and a transparent part is formed on the side wall of the containing cavity.

8. A slurry replenishing apparatus according to any one of claims 1 to 7, characterized in that: the slurry supplementing device comprises a plurality of slurry storages for conveying slurry corresponding to the colors of the slurry in the detection image into the screen frame, and different slurry storages correspondingly contain different colors of slurry.

9. An elliptical printing machine, comprising: a frame, an elliptical guide rail disposed on the frame, a plurality of printing platens disposed on the elliptical guide rail, a drive mechanism for driving the printing platens to move along the elliptical guide rail, a plurality of printing devices disposed in series along the elliptical guide rail, the printing devices comprising a printing head and a screen frame disposed on the frame, the slurry reservoir being connected to the screen frame, and a slurry replenishment apparatus according to any one of claims 1 to 8.

10. Elliptical printing machine according to claim 9, characterized in that: the elliptical printing machine further comprises a counter used for counting the number of times the printing head finishes printing, and the counter is connected with the image acquisition device and the printing head respectively.