US1677679A - Printing apparatus for use with cigarette machinery - Google Patents

Description

July 17, 1928. 1,677,679

W. E. MOLINS PRINTI NG APPARATUS FOR USE WITH CIGARETTE MACHINERY 1119a A 11 18. i927 2.Sheets-Sheet 1 F 7 '1" W; E. MOLINS PRINTING APPARATUS FOR USE WITH CIGARETTE MACHINERY Filed April i,'17 2 Shets-Sheet 2 Imrenimr W m 7770-4? a @224 711m M It is found, however,

machine of the continuous Patented July 17, 1928-' WALTER nvmmrrmomns, or nnrrronnronnon, ENGLAND.

PRINTING APrAnA'rus FOR UsnwrTHcIeAnE'rrE ACHINERY. 1 I

I Application filed April 18, 1927,

This invention is for improvements in or relating to cigarette makingmachines and more particularlyto a printing device for use on a cigarette making machine of the continuous rod type, and has for' its object the provision of a printing unit which is simple in its constructiomclean in its operation and devoid of the defects which usually contribute to inconsistent printing. It has hitherto been the practice to mount a furnishing roller in one side .wall of an ink duct in such a manner that the ink is in constant contact with the surface of the roller and the roller, due to its close fit with the ink duct, serves to retain the ink in the duct. that however goodthe fit between the roller and the duct may be 'made, there is'a tendency, due to wear, for

the ink to. leak from the duct with the consequent loss of efliciency in the device. 7 Further, clotted inkand dust are liable t o produce an irregular supply of ink to the fur-'- nishing roller. I d

Again, the furnishing roller in such a de vice runs at a comparatively low speed, whereas the furnishing roller in the device according to the present invention is arranged to run at substantially'the speed of the-printing roller, thus drivingthe transfer roller which dips into. the ink at a high speed so as to ensurethat the ink is always thoroughly mixed. f Y The present invention consistsof a printing device for use upon a cigarette making rod type which comprises in combinationa; furnishing roller arranged to receive ink from an ink duct, means (for example a doctor blade), arranged-to control the quantity retained upon the surface of said roller and a' transfer roller or rollers, disposed between the furnishing roller and a printing roller,'operable to maintain a consistent supply of ink to said printing roller.

The invention 1s more particularly de-* scribed with reference to the accompanying" drawings, in.which:-

Fig. 1 illustrates in side elevation one method of carrying the invention into effect, and

Fig. 2 illustrates one method of reciprocating the furnishing roller in the direction of its rotational axis. 7

Referring to the drawings, one method of carrying the invention into effect comprises an ink duct 1 in which is adapted to rotate a transfer roller pivotally attached is moved about. its ,jpivot,

accumulated on the ,upper' surface The furnishing-roller 4 is 1 mounted so as to engage with a yieldingly controlledscraper 17 at each end thereof, which is adapted to remove any ink which i may ro ller.1"Mounted above the furnishing roller 7 Serial no; 1s4,si0,*ana in Great Britain Kayla, 1526.

ingly controlled bracket 3 in such a manner that theroller2 is adapted to bear upon the surface ofa smooth furnishing roller 4 and to be driven at a comparatively high speed by the same so as to ensure The furnishing roller 4 is reciprocatedin groove 6 is arranged to be reciprocated in any desired manner, for example by the crown earn 9 rotatable from the main drive of the machine. The furnishing roller is engage with a fixed doctor blade 10, which is mounted so astobe adjustable towards and away from the surface of the furnishing roller 4. Adapted to engage with the upper surface of the doctor blade'10 is an oscillating scraper 11. The scraper 11 is to a link 12 adapted to oscillate about apivot pin 13; through the action of an arm 14 mounted so as to engage with a cam 15 secured to one face of a that as the said arm the scraper 'rewhich may have of the printingv roller .16, so

moves any excess; of ink doc blade- Q- run' over on tothe end faces of the so asto engage with the surface thereof, is

{a transfer roller 18 which .in 'turn is adapted to engage with a second transfer roller 19.

The second transfer roller is'mounted so as toengage with the embossed portion or portions of the rotatable printing roller 16. Mounted directly above the printing roller is a pressure roller 20 over the surface of which a web of cigarette paper is adapted to be drawn.

a plate 21- arranged to roller 4 and adapted to be clamped in position by means of binding screws 22 and 23. The above arrangement permits of the simple adjustment of the transfer'rollers. 18 and 19 relatively to the printing roller 16.

The operation of the device is as fol lows r v Ink is transferred from the ink duct to 2 supported upon a yieldthat'the ink in the duct is always thoroughly mixed.

arranged. to V The transfer rollers 18 and -19 are mounted upon I pivot about the spindle 7 of the furnishing a constant quantity the surface of the furnishing roller 4 and the quantity which is to be transferred from the surface of the roller 4 to the surface of the first transfer roller 18 is regulated by the position of the doctor blade 10 relatively to thesurface of the furnishing roller 4. A surplus, of ink is prevented from accumulating upon the upper surface of the doctor blade by the oscillating scraper 11. The surface of the first transfer roller 18 which has received ink from the surface of the furnishing roller 4 engages with the surface of the second transfer roller 19, and provides the same with a film of ink. The embossed portion or portions of the printing roller 16 are adapted to engage with the inked surface of the second transfer roller and receive the desired amount of ink there from.

The adjustability of the doctor blade 10 and the action of the reciprocating furnishing roller 4 on the first and second transfer rollers, provides a simple and efficient method of providing the printing roller with of ink which may be easily regulated.

What I claim as my invention and desire to secure by Letters Patent is 1 In a printing device, the combination with a furnishing roller adapted toreceive ink, of a doctor blade arranged to control the quantity of ink retained on said roller, and means for scraping the surface of said doctor blade to remove surplus ink.

2. Ina printing device, the combination 'with'a furnishing roller adapted to receive ink, of a doctor the quantity blade arranged to control of ink retained on said roller, and an oscillating member for scraping the surface of said doctor blade to remove surplus ink.

3. In a printing device, the combination with a furnishing roller adapted to receive ink, of a doctor blade arranged to control the quantity of ink retained on said roller, a rotatable cam, and means driven thereby for scraping the surface of said doctor blade to remove surplus ink.

4. A printing device for use upon a cigarette making machine of the continuous rod for scraping the upper surface of said doctorblade, a

printing roller, and at least one transfer roller disposed'bet'ween the furnishing roller and said printing roller operable to maintain a consistent supply of ink to said printing roller.

5. A rinting device for use on a ciga rette; ma nng machine of the ,continuousrod type which comprlses in combination a furnishing roller arranged to, receive ink from i an ink 'duct and reciprocate in the direction of its rotational axis, a fixed doctor. blade arranged to control the quantity of ink retained upon the surface of said roller, a

reciprocating scraper operable to clean the upper surface of said doctor blade, a printingroller. and at least one'transfer roller disposed between the furnishing roller and the printing roller operable to maintain a consistent supply of ink to said printing roller.

6. A printing device for use upon a cigarette making machine of the continuous rod type which comprises incombination a furnishing roller arranged to receive ink from an ink duct and reciprocated' in the direction of its rotational axis, a fixed doctor I blade arrangedto control the quantity of ink retained upon reciprocating upper surface of'said doctor blade, a printing roller, a plate arranged to swing about the axis of the furnishing roller, and at least one transfer roller carried upon said plate and operable to maintain of ink to said printing roller.

the surface of said roller, a scraper operable to clean the' a consistent supply In testimony whereof I hereunto affix my signature.

WALTER EVERETT MOLINS;

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