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Solution application apparatus and a tablet printing apparatus

A coating device and solution technology, applied in printing, printing machines, printing devices, etc., can solve problems such as clogged nozzles, quality reduction, and inability to apply solutions

Active Publication Date: 2021-03-23
SHIBAURA MECHATRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the solution coating device, ejection failure may occur due to various reasons
For example, ejection failure occurs due to clogging of the nozzle by air bubbles or foreign matter mixed into the solution
In a tablet printing device, when a powder material is compressed to form a tablet as an object to be coated, the surface of the tablet is cut during the conveyance of the tablet, and the resulting powder may be will clog the nozzle
[0004] If the discharge of the solution is poor, the solution cannot be applied to the object to be coated with the desired coating amount.
As a result, an uneven film is formed, or printed characters cannot be read, resulting in lower quality

Method used

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  • Solution application apparatus and a tablet printing apparatus
  • Solution application apparatus and a tablet printing apparatus
  • Solution application apparatus and a tablet printing apparatus

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0089] Hereinafter, as an embodiment of the present invention, a tablet printing device will be described as an example with reference to the drawings.

[0090] Such as figure 1 and figure 2As shown, the tablet printing device 1 includes: a supply device 10, a conveying device 20, a detection device 30, a first camera device 40, a printing device 50, a second camera device 60, a recovery device 70, a head cleaning device 80, a discharge failure The detection device 90 , the image processing device 100 , and the control device 110 .

[0091] The supply device 10 includes a hopper 11 and a slideway 12 . The hopper 11 stores a large amount of tablets Tb, and sequentially supplies the stored tablets Tb to the chute 12 . The chute 12 arranges the supplied tablets Tb into rows (in figure 2 In the example of two rows), it is supplied to the conveying device 20. The supply device 10 is electrically connected to the control device 110 , and the drive of the supply device 10 is c...

no. 2 approach

[0145] Next, a second embodiment will be described. The internal structure of this embodiment is the same as that of the first embodiment figure 1 and figure 2 same. In the present embodiment, a wound generated on the surface (lower surface) of the print head 51 on which the discharge ports 52 a are formed is detected.

[0146] In the tablet printing apparatus, when the tablets are supplied to the conveyer belt, the tablets may take a standing posture or the tablets may overlap each other. If the tablet in the abnormal posture is directly conveyed to the printing device 50 , the tablet may collide with or rub against the lower surface of the print head 51 . At this time, a wound may be generated on the print head 51 . When a scratch occurs on the lower surface of the print head 51 , especially near the region where the discharge port 52 a exists, the discharge direction of the ink may be disturbed, and an accurate print pattern may not be printed.

[0147] When a wound o...

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PUM

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Abstract

Disclosed are a solution application apparatus and a tablet printing apparatus. An excellent quality application and printing is performed to a printing target. In a solution application apparatus according to embodiments of the present disclosure, ink supplied to the head (51) ejecting the solution is a solution including fluorescent material, which emits light when light with wavelength in ultraviolet region is irradiated, and the solution application apparatus detects a presence of an ejection failure nozzle by imaging an ejection outlet (52a) in a state in which light having wavelength inultraviolet region is irradiated to the ejection outlet (52a) of a nozzle (52) of the head (51).

Description

technical field [0001] Embodiments of the present invention relate to a solution coating device and a tablet printing device. Background technique [0002] The solution coating apparatus is used for printing on tablets, manufacturing of liquid crystal display devices, semiconductor devices, and the like. For example, a tablet coating device includes an inkjet type coating head that ejects a solution from a plurality of nozzles, and sequentially lands a plurality of liquid droplets from the nozzles on a tablet conveyed by a conveying mechanism to perform coating. cloth. [0003] In a solution coating device, discharge failure may occur due to various reasons. For example, ejection failure occurs due to clogging of nozzles by air bubbles or foreign matter mixed into the solution. In a tablet printing device, when a powder material is compressed to form a tablet as an object to be coated, the surface of the tablet is cut during the conveyance of the tablet, and the resulting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J3/407B41J3/44B41J11/00B41J2/165
CPCB41J3/4073B41J3/407B41J3/445B41J11/002B41J2/16535B41J11/0095B41J2/16508B41J2/16511B41J2/16526B41J2/16547B41J2002/16573B41J2/16579B41J25/304B41J2/16585B41J2/16517A61J3/007B41F17/36B41J2/16514B41J2/2107B41J2/2142B41J3/46B41J11/0015B41J29/38C09D11/50B41J2/0451B41J2/16538
Inventor 青柳均黑岩杏太
Owner SHIBAURA MECHATRONICS CORP