US1313670A - burdick - Google Patents

Description

C. L. BURDICK.

PAINTING MACHINE. APPLICATION FILED res. l. 191s.

1,3 1 3,1670. Patented Aug. 19, 1919.

3 SHEETS-SHEET 1.

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C'. L. BURDIC'K.

PAINTING MACHINE.

APPLICATION FILED FEB. I. 19x8- 1,313`,670, ParenfeaAug. 19,1919.

3 SHEETS-SYHEET 2.

@Mw/aeg C. L. BURDICK.

PMNTING MACHINE.

APPLICATION FILED FEB. I. I9I8.

Patented Aug. 19, 1919.

Zzz/efz for' (Za/J CHARLES LAURENCE BURfDlCK, OF WOOD GREEN, LONDON, ENGLAND.

PAINTING-MACHINE.

Specification of Letters Patent.

y Patentednug. 19, 1919.

Application led February 1,' 1918. Serial No. 214,932.

To all 'whom t may concern.'

Be it known 'that I, CHARLES LAURENCE BURDICK, a citizen oi the United States, residingat Vlro'od Green, in the county of London, ngland, have invented .new and useful Improvements in Painting-Machines, of

' which the following'is a specification.

' any projections from or unevenness o My invention relates to machines designed for painting golf balls or other round or cylindrical objects. tributing any liquid as' oil, paint', lacquer, varnish and the like.

When small objects of this class are painted by hand ythere, is considerable difliculty (owing to inconvenience of holding and turning the object) in obtaining a um#` form coat. 'c

I' overcome this diiculty'by ,rotating ther y ball or object and cause the paint to be deposited by means of a spraying 'instrument or instruments. j

The spraying instrument is mounted on -a pivoted frame-work in such a manner that itis kept in radial alinement with the object being painted, andl is moved throughthe arc of a circle or any eccentric path-1n a manner permitting the paint. to be blown on to the article from various angles, o r varying positions.

By a convenient provide opposite form 'of construction I the obing a portion of the article, special appara-l tus for holding. the article and means for taking care of the dust or fumes from the spray.

My invention will [be more fully set forth-` by reference to the accompanying drawings,

in which-f- Figure 1 is a diagrammatic plan view of one form of the invention showingl details of the spraying mechanism in section.

It may be used for dis.

that the article may be rotated ink movement of the spraying in-V for regulating the volume `taper point of valves are res 21 and 22- which normally keep the valves Fig. 211s a sectional view on the line X-X of Fig. 1.

Fig. 3 is a sectional view mainlyk on the line Y--Y of Fig. 1, but showing the sprayinvmechanism in elevation.

1g. 4 1s a View, similar to Fig. 1, with some of the parts removed, illustrating a modified arrangement.- l l As shown in the drawings, 1 is a base or platform; 2 is a standard'mounted on the base and carrying a journaled spindle or shaft 3; 4 is a similar standard carrying a tail stock 5; 6 is a stud on which is mounted a disk 7 8 may represent any article to be painted, varnished or otherwise treated.

A small pinion wheel 9 mounted on the shaft 3 engages with a rack 10 or segment of a gear wheel which is secured to or integral with the disk 7.

Q, The spindle 3 is provided with a head carrying three tapery pins 11, 1l', 11 which in this case are used to hold the article to be painted, but I wish to point out that this lspindle may be provided with any of the well?" known chucks or devices which .are used to hold articles in machine tools.

'.'The'tail stock is provided with a sprin "actuated spindle 5 having a, knob 12 whic enables the operator to quickly remove the painted article.

The spring 13'keeps the pressure normally on the article being rpainrted; in vorder to avoid the friction consequent on rotating the spindle 5 with its spring, I provide a more slender interior shaft 14'having a head in vwhich `are mounted three taper pins, 15, 15 15 which engage the article.

A mask 16 may be so positioned as to protect any part of the article from the paint.

17 is a handle for operating `the machine.

The spraying apparatus 18 may be of any convenient form; it is provided with an air valve at 19 and a paint or liquid valve in the the conical piece 20; Vthese ectively actuated bv springs closed; theyvv are opened to set the vsprayer in action by means of the lever 24, thls lever engages nuts to the valve stems 25v and 26 respectively.

The lever 24 1s provided with a friction roller 'which engages the 'edge of a cam,-

27 and "28 adjustably securedshaped piece 32 which according to its shape and position controls the delivery of the paint from the sprayer. i

Compressed alr'is led into the sprayer through the pipe or nipple 29 and paint is introduced through the nipple 30.

A cap or nozzle 31 with a'circular opening is positioned over the paint discharge nozzle 20 so that a ring of escaping air surrounds 'the inner nozzle at the `polnt of discharge.

In Figs. 1 to 3 the article to be painted is shown as circular in lconfiguration, but in some instances the article might have an eccentric form as shown in Fig. 4 and it would be desirable to move the sprayer` along a correspondingly eccentric ath; to enable `thisto be done I mount t e sprayer on a shaft 34 which may be provided with rollers 36, 36 and disks or washers 35, 35.-

Mounted on the framework or base 1 are pieces 37 and 38 having slots or openings 42 or 42'l shaped in accordance with the path alon which' it is desired that the sprayer sha1 move and-these pieces serve as cams to en age the rollers 36, 36 respective l he shaft 34 passes through a radial slot 43 in the disk 7; the pieces 35, 35 serving to keep the shaft upright.

When the piece 7 is rotated on its pivot the sprayer will be advanced in a movement conforming toy the slots 42 inthe and 38,`while maintaining its radlal aliney ment .with the article toqbe painted. Since 35 thearticle to be painted is spherical in the fcaseillustrated lin Figs. 1 to 3, the slots 42 are, in that case, made circular. When the article has a contour which is not circular the slot is made of a correspondin shape and then, as the shaft 34 is move along such slot, the slot 43 permits the shaft 34 to follow said first-named slot.

By suitablyshaping the cam 32, which engages .the lever-2 4, more or less paint may be distributed at any point in its path of movement while by regulating the set nut 28 on lthe sprayer a general control of the paint is obtainable.

In painting a perfectl spherical article the sprayer ma be rigidly secured to the disk 7 and the s aft 34 and pieces 37 and 38 dis ensed with.

n the arrangement shown in Fig. 1 the* article to be painted is spherical, and consequently the slots 42 are circular and concentric to the disk 7. In Fig. 4 the article t o be painted is shown as substantially elliptica and the slots 42a are in such case, eccentric to the disk 7. The shaft 34 is fiattened wlere it passes through the slot 43. In Fig. 4 the upper one ofthe two parts in which the slots 42 are formed has been removed and only the lower part 38l is shown. The cam 32l operating the lever ieces 37 or may not be concentric to the slot 42, ac-

c ording to whether it is necessary to give a constant or variable opening to the air and paint valves, the relation between these valves and the lever 24 being adjusted, if necessary, by means of the nuts 27 and 28.

The machine may be provided with a partial or complete covering and means for taking away by suction or exhaust air any loose spray or fumes from the paint. In the drawing, 40 is a partial coverin or hood provided with an opening 41 rom which the air is to be exhausted.

It will be obvious that more than one sprayer could be mounted'on the machine. Instead of the machine being handoperated reciprocal movement might be communicated to it from any convenient source of power.

The operation of the machine is as follows Compressed air being supplied through a fieXible pipe to the nipple 29 and paint being inducted through the nipple 30, the article is placed in the chuck or holder; the disk 7 is then rotated 'by means of the handle 17 through the segment of a circle, say 100 degrees; the spindle 3 will -be rapidly rotated and as soon as the lever 24 arrives at the end of the cam 32 it is pressed back by contact with the cam; the sprayer will then be set in operation and paint will be blown on to one side or end of the rotating article, the sprayer moving through the segment of a circle will finish at the other end of the armcle; and the lever 24 being then releasedV by passing oil the other end of the cam 32 the spraying will cease. If one simple movement is sufiicient to give the desired coating the article is removed and another one placed in the machine for painting on the return stroke. In some instances it may vbe desirable to paint the article with a secing and rotating an article to be painted, a A

sprayer, and means for moving the sprayer along curved and radial paths simultaneously such that the resultant path of movement of the sprayer is similar to the contour of the article to be painted.

2. In a painting machlne, means for holding and rotating an article to be painted, a

sprayer, means for moving the sprayer along curved and radial paths simultaneously such that the resultant path of movement ofthe sprayer is similar to the contour of the article to be painted and means for maintaining the sprayer in alinement with the said radial path While it is thus moved.

8. In a painting machine, means for holding and rotatin an article to be painted, a sprayer, means or moving the sprayer along curved and radial paths simultaneously such that the resultant path of movement of the sprayer is similar to the contour of the article held lin the machine to be painted and at a uniform distance from the exterior surface of thesaidarticle from end to end.

4. In a painting machine, means for holding and rotatin an article to be painted, a sprayer, means or moving'the sprayer along curved and radial paths simultaneously such that the resultant path of movement of the sprayer is similar to the. contour of the article .to be painted and at a uniform distance from the exterior surf-ace of the 'said article held in the machine, and means for maintaining the sprayer in alinement with the said radiall ath While thus moved.

5. In a painting machine, means for holding and rotating an article to be painted, a

sprayer, and means for moving the sprayer f simultaneously along acurved path and a' radial path rotatable about an axis passing the article is rotated. v .y

6. In a painting machine,vrotatable means `transversely through the' axis about which for holding an article -to be painted, a,

sprayer, means for moving the sprayeralong curved and radial paths simultaneously, and av motion transmitting gearing connecting the means for moving the sprayer with the rotatable means for holding the said article.

7. In a painting machine, rotatable means for holding an article to be painted, .a sprayer, means for moving the sprayer s1- multaneously along a curved path and a radial path rotatable about an axis passing. the axis about which transversely throu the arti-cle is rotate, and a motion transmitting gearing connecting the means for moving the sprayer with the rotatable means for holding the said article.

8. In a painting machine, rotatable means for holding an article to be painted, a sprayer, means for moving, the sprayer in. both directions along a path similar to the contour of the article to be painted, and

means for transmitting motion between the sprayer moving'means and the article holding means the said motion transmitting means being arranged so that the direction of rotation of the article is reversed when the movement of the sprayer is reversed.

9. In a painting machlne, means for rotatably holding an article to be painted, a

sprayer, means for imparting an oscillatory movement to the sprayer along curved and radial paths simultaneously, and motiontransmitting gearing connecting the sprayer moving means and the article holding means.

10. In a painting machine, means for rotatably holding an article to be painted, a sprayer, means for imparting an oscillatory movement of the sprayer along curved and radial paths simultaneously, means for maintaining the sprayer in position to direct a spray radially on to the said article, and gearing connecting the said sprayer moving means and the article holding means.

11. In a painting machine, means for holding and rotating an article to be painted, a sprayer, means for moving the sprayer along a path similar to the contour of the article to be p-ainted, and means operated consequentially by the movement of the sprayer for put/ting the sprayer into and out of operation.

` 12. In a painting machine, means for holdsprayer, means for moving the sprayer along a path' similar to the contour of the article to vbe painted, and means operated consequentially by the movement of the sprayer to put the sprayer into operation after it has commenced to move along ,this path from one endthereof, and to put the sprayer out of operation before it reaches the other end of this path.

14. In -a painting machina-means for holdv'ing and rotating an article to be painted, a

sprayer, means for moving the said sprayer along a curved path and a radial path simultaneously, and a covering preventing `uncontrolled escape of fumes from the-spray delivered by the sprayer.

15. In a painting machine, a rotary spindle, a second .rotary spindle Ain alinement withl the first mentioned spindle, a spring urging. the second` spindle toward the first mentioned spindle, work-holding rvelements at-the adjacent ends of these spindles, a rotatable disk and a sprayer carried by the said disk. f

16. In a painting machine, a rotary workholding spindle, a' disk rotatable about an axis ltransverse lto the said spindle, a cam plate having a guide slot formed therein, and

a sprayer mounted. on the 'said disk and movable along the said guide slot.

disk, and a rack on the disk gearing with thesaid pinion.

19. In a painting machine, a rotary workholding spindle, a pinion on the said spindle, adisk having a radial slot therein and rotatable about an axis transverse to the said spindle, a cam plate having a guide slot vformed therein, a sprayer slidably held in the slot in the disk and movable along .the said guide slot, and a rack on the disk gearing with the said pinion.

20. In a painting machine, a rotary Workholding spindle, a cam plate having a guide slot therein, v a s rayer movable along the said guide slot, evers carried by and controlling the operation of the sprayer, and a cam-plate actuating the levers as the sprayer is moved along the said guide slot.

21. In a painting machine, a rotary workholdingl spmdle, a movable sprayer, a lever controlling the operation of the sprayer and a cam plate actuating the lever as the i sprayer is moved.

22. In a painting machine, a rotary Workholding spindle, a movable sprayer, levers adjustably connected to separate valves controlling the ejection of air and liquid respectively from the sprayer, and a cam plate actuating the lever as the sprayer is moved.

23. In a painting machine, a rotary Workholding spindle, a pinion on the said spindle, a disk having a radial slot therein, a rack on said disk gearing with the said pinion, a cam plate havlng a guide slot formed "therein, a sprayer carried in the slot in the disk and movable along the said guide slot, levers carried by and controlling the operation of the sprayer, and a cam plate actuating the levers as the sprayer is moved along the guide slot.

24. In a painting machine, a rotary Workholding spindle, a sprayer, and a mask supported in position to screen part of an article held by said spindle from a spray discharged from the said sprayer.

CHARLES LAURENCE nimmer.

Witnesses:

CONRAD ARNOLD, HERBERT A. BEEs'mN.

Images