Printing – Special article machines – Rotating object
Patent
1981-04-13
1983-02-01
Crowder, Clifford D.
Printing
Special article machines
Rotating object
198478, 198480, B41F 1720
Patent
active
043709257
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to an apparatus for multiple colour printing on the surfaces of cylindrical articles which are successively fed and conveyed by a conveyor unit at a constant speed.
In particular, this invention relates to an apparatus for multiple colour printing on the surface of cylindrical articles which are successively fed and conveyed by the below described constant-speed conveyor unit.
In various kinds of article working processes in factories in a variety of technical fields, a great many apparatuses for conveying articles along a circular conveying locus or path at a constant speed have heretofore been employed. However, no apparatus for conveying articles along a conveying locus or path of a predetermined irregular shape has been known.
We have previously succeeded in providing an apparatus for conveying articles along a conveying locus of a predetermined irregular shape at a constant speed which is essential for effecting various kinds of article working or production processes continuously and efficiently in a variety of factories. We have now succeeded in providing an apparatus for multiple colour printing on the surface of cylindrical articles which are successively conveyed and supplied with use of the said apparatus for conveying.
DISCLOSURE OF INVENTION
The present invention provides a continuous multicolour printing apparatus for printing in multicolour in stepwise manner the surfaces of cylindrical articles which are successively fed and conveyed at a constant speed, which apparatus comprises
(a) a conveyor unit (FIGS. 1-4, 7 and 8) adapted to convey articles to be printed at a constant speed which includes a rotary disk 1 having a plurality of bearings 5 mounted on the outer periphery thereof and having a rotating shaft 11 for rotating the disk 1, a conveyor chain or belt 6 arranged to be moved along a predetermined locus or path controlled by inner guides 7 and outer guides 8, a plurality of support means 3 each adapted to support an article to be printed, said support means each having an arm 3b and a connecting member 3c, freely rotatable shafts 4 each being mounted on one of the bearings 5, the arm 3b of the support means being arranged to be slidably fitted in a respective one of the shafts 4, the connecting member 3c being connected through a linkage with the conveyor chain 6, a sprocket(s) 2 having a shaft 22 driven by a prime mover and adapted to drive said conveyor chain or belt 6, and a cradle 10, (See FIG. 5) the rotating shaft 11 of the rotary disk 1 being arranged to rotate in synchronism with the rotating shaft 22 of the sprocket 2,
(b) cradle rotating units (FIGS. 5, 6 and 8) each including a cradle rotating sprocket 16 adapted to rotate the cradle 10 and having the same diameter as that of the article to be printed, a fixed plate 12 having a configuration similar to that of the predetermined conveying locus or path, a fixed chain or belt 13 stretching around a major part of the outer periphery of the fixed plate 12, said sprocket 16 engaging with the fixed chain or belt 13 so as to be rotated therealong,
(c) a plurality of rotary printing units disposed along the conveying locus or path of the articles to be printed,
(d) a feeding unit for supplying articles to be printed to the conveyor unit (a), and
(e) a delivery unit for delivering printed articles from the conveyor unit (a),
all of the rotating means of the units of (a) to (e) above being arranged to rotate in synchronism with one another.
The constant-speed conveyor unit described in (a) above which forms a first characteristic feature of the present invention can successively convey articles to be printed at a constant speed. Stating in brief, in the constant-speed conveyor unit described in (a) above and illustrated in FIGS. 1 and 2, the load of each article to be printed is carried through the bearing 5 by the rotary disk 1. The articles to be printed can be moved at a constant speed, not along the locus of movement of the bearings 5, but along the locus of movement of conveyor chain 6
REFERENCES:
patent: 3124065 (1964-03-01), Bozek et al.
patent: 3512478 (1970-05-01), Rose
patent: 3521298 (1970-07-01), Morel et al.
patent: 3548745 (1970-12-01), Sirvet et al.
patent: 3640213 (1972-02-01), Schwartzbach
patent: 3645201 (1972-02-01), Jackson
patent: 3822639 (1974-07-01), Szpitalak
patent: 3960073 (1976-06-01), Rush
patent: 4044667 (1977-08-01), Jackson
Kazumi Ozawa
Shinichiro No
Crowder Clifford D.
Kabushiki Kaisha Yakul't Honsha
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