US1783810A - Stencil printing machine - Google Patents

Description

Dec. 2, 1930.

J. H. PETERSEN STENCIL PRINTING MACHINE Filed June 8, 1929 2 Sheets-Sheet 1 INVENTOR john J'L. Petersen/ BY A WITNESSES ATTORNEYS Dec. 2, 1930. J. H. PETERSEN STENCIL PRINTING MACHINE ile J n 8. 1929 2 Sheets-Sheet 2 INVENTOR v Jbhndf. Pei'erserb WITNESSES ATTORNEYS -1 9 Fig. 2- is a plan View.

Patented Dec. 2 1 930 mm; new

' STENCIL rRINTrndMAcHin-E' Application filed June 8, 1929. -se ia1 1woiasaA12.

This invention relates to stencil printing machines of the type used for printing on or decorating textile fabrics and closely analogous materials; I 1

;, 5 An object of the invention is to provide improvements in a machine of the indicated character whereby the stencil cylinder and the material being print-ed or decorated will be synchronized to move at thesame'rate of 1 9 Speed to insure accuracy in the printed or decorative patterns or designs.

Another object of the invention is to provide improvements in a machine of the indicated character whereby the stencil cylinder 4 will be readily removable, for the purpose of cleaning the same whenever the occasion arises, and which enables adjustment of the spraying devices to be readily made with respect to said cylinder, whilethe machine is in operation. r i

Another object of the invention is to provide a machine of the indicated character with improved means for drying the printing 25 fluid or composition on the stencil cylinder, to prevent smudging or the production of imperfect patterns or designs.

The nature of the invention and its distinguishing features and advantages will appear when the following specification is read in connection with the accompanying drawings, in which 7 Figure 1 is a longitudinal section of a machine embodying the features of the present invention.

Fig. 3 is a fragmentary transverse section. Fig. 4 is an enlarged section of the stencil cylinder.

Fig. 5 is a detail section. Referring now more particularly to the drawings it will be apparent that the machine includes a frame 10. On the frame is mounted a stencil cylinder 11. The stencil v cylinder 11 is provided with perforations or openings 12 which formulate or define the pattern or design elements to be produced on the textile fabric or closely analagousmaterials. The stencil cylinder 11 is open at each end, and each end has arranged thereon a ring gear Each ring gear'13 is in mesh @inventioniuse'is made aofsaplurali-ty offspray- :disposedrespectively at opposite fendsbf the with smash an 5 16 :tra s Shaf lfiflonrnaled for rotation in suitable bearings Zsecuredto;1iheside mem er l 0 the am 10. Hike zshaft l6-on which the pinions {14ers t ;h amoun e hereon a .WO I g a 25] 'l9iwihach meshcswlth a worm 20 on allongitudjnal-.,sha-ftw2l journaled for rotation in uitable JqearingsB s ured tot ide m w bers;18.'-.{l ;he1sha-ft Qlflhas ,a bevel gear 23 which meshes with a bevel gear QAon-a trans- Q9 verse shaft 25, journaled for rQtation in sui;table jibearings 26,011 the frame. Motion is transmitted to. the shaft 25 :by any suitable pmmemover' suchas a-motor27andlthe interventioniof belts andpulleys generally ,dcsigii nat8CF 28. L- .11: v I g.iThe'itextiler-fabnic or other closelvanalor. 1 gous materialito beiprinted on or decorated is supported .and fed in the apresenceof the stencil cylinder-llzinithe mannerandbytm means ipresen tlyatoebe described. A :rollflof texti'1efahr-id29is supported iinan-y preferred manner 'on one .=end ;of the frame 10, .sand the fabric passes over the roller 30, thencc under tensiongrollers 31 zandovler 91a :sprea'der 82intel-posing itheirollers 61, zthe'nce over pressin g or compression rollers contact with the cylindrical sunface iof'lthe. stencil cylinder l hlthence under and gover rollers E34, ;35, 3.6, and betweenxa roller 37 ianda drum38, and from the latter .to a rolgl 39. I AdlIof the 311011- ers, drum 3'81andiroll39 may besupportedif0r rotation on t-hegframe' 10 in any apractical manner; Theijdruin"3-8fis positively:driizeiilby 'theintervention ofgearsfAO so that the :stencil cylinders 11 and the drum 38 will besynchroniz ed to move at the same rate' ofispeed, to insur'eaccuracy qinithev printed or decoratifve patterns ordesigns produced 5011 :the 'fabric. fl h'e'roll 39 may beaotalted in any .practic'atlfimnrierwto wine .iihe :finished' lfabiric thereon; I In accordance with another feature o'fmhe i-n'g devicesior Sg'uns 'liheselguns 411 are arranged for'iaxial :anfd pivotal .a'dustn eiition a rod42 supponted ;for.ventical.- adj ustme'Iitiby guide standardszfi.respectivelyssecured tothe side membe is zlfi:oftheframe-ld-so as" tobe stencil cylinder 11. The rod 42 is provided with suitable clamping elements or nuts 44 which clampingly engage the standards 43 to maintain the rod 42 in the desired position of adjustment. The spraying devices or .g'llns 41 project the dye or other printing fluid or composition, in the form of sprays through the perforations or openings in the stencil cylinder 11 so as to be implanted on the fabric. Any preferred number of spraying devices or guns 41 may be'used accordingto the particular width of the fabric being printed or decorated.

In accordance with another feature of the invention, the stencil cylinder 11 is held against displacement, with respect to the fabric, and also to prevent de-meshing of the ring gears 13 with the pinions l4 and 15, but to allow the stencil cylinder 11 to be intentionally removed, by pairs of rollers 45 and 46, rotatably supported by a bearing bracket 47 secured to one of the side'members 18 of the frame. The roller 45 of each pair is in contact with the inside of the stencil cylinder 11, whereas the roller '46 of each pair is in contact with the related ring gear 18 as shown most clearly in Fig. 5. Each of the rollers 45 may be swung out of contact with the stencil cylinder 11 which enables the stencil cylinder 11 to be removed, by merely removing the rod 42. The stencil cylinder 11 must be removed from time to time for the purpose of cleaning the interior surface thereof, to rid the same from accumulations of the printing composition or dye. I

In accordance with another feature of the invention there is provided means for drying the printing fluid or composition on the stencil cylinder, to prevent smudging, or the production of imperfect patterns or designs, and this is accomplished bythe use of a perforated tube 50 extending substantially parallel to the outer surface of the stencil cylinder 11 to project jets of gas toward the stencil cylinder 11. The gas is fed to the tube 50 from any suitable supply source, and is controlled by a valve 51- in the tube 50.

It is to be understood that two or more cylinder sets may be used in the machine for the purpose of producing two or more color prints. r

I claim:

1. In a stencil printing machine, the combination of a frame, a stencil cylinder open at each end, a ring gear on each end of said cylinder, shafts rotatably supported on said frame in spaced parallel relation in substantially the same horizontal plane, a pair of pinions on each shaft in mesh with said gears, means to drive one of said shafts to rotate said cylinder, and rollers on said frame in rolling contactwith said gears, to prevent the axial movement of said cylinder.

2. In a stencil printing machine, the combination of a frame, a stencil cylinder open

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