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Tablet printing apparatus and tablet printing method

A printing device and printing method technology, applied in the directions of printing devices, printing, and devices that make medicines into special physical or ingesting forms, can solve problems such as poor printing, cracks or gaps, and improve recycling efficiency, reliability and safety. The effect of good product recycling

Inactive Publication Date: 2019-02-05
DAINIPPON SCREEN MTG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the tablet manufacturing process using such a printing device, in addition to poor printing, shape defects such as cracks and chipping may occur

Method used

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  • Tablet printing apparatus and tablet printing method
  • Tablet printing apparatus and tablet printing method
  • Tablet printing apparatus and tablet printing method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0040] 1-1. Structure of tablet printing device

[0041] figure 1 It is a diagram showing the configuration of the tablet printing apparatus 1 according to the first embodiment of the present invention. The tablet printing device 1 is a device that prints images such as a product name, a product number, a company name, and a logo on the surface of each tablet 9 while conveying a plurality of tablets 9 that are medicines.

[0042] Such as figure 1As shown, the tablet printing apparatus 1 of this embodiment includes a supply mechanism 20 , a conveyance mechanism 30 , a printing unit 40 , an inspection mechanism 50 , a collection unit 60 , and a control unit 10 .

[0043] The supply mechanism 20 has a hopper 21 , a straight feeder 22 , a rotary feeder 23 , and an inclined feeder 24 . The supply mechanism 20 is a mechanism for transferring the tablets 9 thrown into the device to the transport mechanism 30 .

[0044] The hopper 21 is an input unit for taking many tablets 9 into...

no. 2 approach

[0121] Next, the flow of the printing process using the tablet printing apparatus 1 of the second embodiment will be described. The tablet printing device 1 of the second embodiment has the same device configuration as the tablet printing device 1 of the first embodiment. Figure 8 It is a flowchart showing the flow of the printing process of the tablet printing apparatus 1 of the second embodiment.

[0122]In the printing process of the second embodiment, the visual inspection of the second surface of the tablet 9 (step S201), the visual inspection of the first surface (step S202), the printing process on the first surface (step S203), Printing inspection on the first side (step S204), appearance inspection on the second side (step S205), printing process on the second side (step S206), printing inspection on the second side (step S207), collection of defective printing (step S208) and recovery of defective products (step S209).

[0123] Since steps S201 to S209 of the prin...

no. 3 approach

[0134] Figure 9 It is a diagram showing the configuration of a tablet printing apparatus 1A according to the third embodiment. Figure 10 It is a partial schematic diagram which shows the structure of the conveyance roller 31, part of the 1st conveyance belt 32, and the 2nd conveyance belt 33 in 3rd Embodiment. Figure 11 It is a block diagram showing the connection between the control unit 10A and each part in the tablet printing apparatus 1A in the third embodiment.

[0135] Figure 9 ~ Figure 11 In , the same reference numerals are assigned to the same configurations as those of the first embodiment. First, differences between the tablet printing apparatus 1A of the third embodiment and the tablet printing apparatus 1 of the first embodiment will be described.

[0136] Such as Figure 9 ~ Figure 11 As shown, in the tablet printing apparatus 1A, the recovery unit 60A does not have a discharge sensor. Correspondingly, as Figure 11 As shown, the control unit 10A does n...

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Abstract

This tablet printing apparatus (1) comprises a conveying mechanism for conveying tablets (9) while sucking and holding the tablets (9) by applying a negative pressure to a plurality of suction parts,a head (42) for ejecting ink droplets onto the surface of the tablets (9), a camera (55) disposed on the downstream side of the head (42), a defective item determination unit for determining target tablets to be collected on the basis of images captured by the camera (55), first blow mechanisms (611, 621) for applying a positive pressure to the suction parts where the target tablets are held so asto release suction of the tablets (9), a discharge sensor (63) for detecting whether or not the tablets (9) are present in the suction parts, a remaining determination unit for determining remainingtablets on the basis of a detection signal from the discharge sensor (63), and a second blow mechanism (641) that releases suction of the remaining tablets. Through said features, even in cases wheredefective items are not collected by the first blow mechanisms (611, 621), it is possible to improve the collection efficiency of defective items. Accordingly, the collection efficiency of defective items in the tablet printing apparatus can be improved.

Description

technical field [0001] The present invention relates to a tablet printing device and a tablet printing method for printing on the surface of a tablet. Background technique [0002] Characters or serial numbers for identifying products are printed on the surface of tablets as medicines. Such letters or numbers are sometimes printed by engraving, but the engraving has a problem of low visibility. In particular, in recent years, the spread of generic drugs has led to the diversification of the types of tablets. Therefore, in order to reliably identify a tablet, a technique of clearly printing on the surface of the tablet by an inkjet method is attracting attention. [0003] A conventional inkjet tablet printing device is described in Patent Document 1, for example. In the tablet manufacturing process using such a printing device, shape defects such as cracks and chipping may occur in addition to poor printing. The tablet printing apparatus described in Patent Document 1 pri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61J3/06B41J2/01
CPCA61J3/06B41J2/01B41J11/0085B41J29/26B41J29/393A61J2200/70
Inventor 蒲隆
Owner DAINIPPON SCREEN MTG CO LTD
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