US1682978A - Machine for printing or embossing - Google Patents

Description

Sept; 4, 1928.

s. 'OHARA MACHINE FOR PRINTING OR EMBOSSING Filed May 20, 1927 1220021207 64 "yqflm (5PM (lfio rfieya B hm w A M Z Patented Sept. 4, 1928.

UNITED STATES,

PATENT, OFFICE. v

sxrnmonn OHARA, or WALTHAM, MASSACHUSETTS, ASSIGNOR To OHABA WALTHAM COMPANY, or WALTHAM, MAssAcnUsn Ts, A CORPORATION or MASSACHUSETTS.

MACHINE FOR PRINTING on nivnzossnve.

Application filed May 20,

The invention relates to a new and useful improvement in machines for printing or em bossing. It relates especially to machines n which the printing or embossing member is vertically reciprocable and has a printlng surface which receives a design from a die, and then transfersthe design to the work, the die and work holder being alternately brought into alinement with the printing member which is actuated to be pressed nto engagement with the die and then ra sed and then the die is moved out from ahnement therewith and the work holder containing the work is moved into alinement with I the printing member which is then operated to print the work on the holder, then the'printing member is raised and the work holder is withdrawn.

The invention is especially applicable to machines for printing or embossing on glass, china, porcelain, enamelled goods or other brittle or frangible articles although it s not limited to machines for printing on arti- 'cles of that character. 1

The present invention relates especially to the means for actuating the work holder.

from thefollowing description when taken in connection with the accompanying drawings, and the novel features thereof will be pointed out and clearly defined in the claims at the close of this specification.

In the drawings:

Fig. 1 is a side elevation of a fragmentary portion of a machine embodying the invention, showing the parts in position when the work holder is positioned beneath the printing member and the die has moved on its forward stroke far enough so that in its further forward movement it will turn the work holder out of alinement with the printing member.

Fig. 2 is an end view as viewed from th left of Fig. 1.

Fig. 3 is a section on line 3-3, Fig. 1.

Fig. 4 is a section on the same line as Fig. 3, but showing the die moved to its full forward position beneath the printing member and showing the work holder moved out of alinement.

Referring to the drawings, there is shown at 10 a frame or casting to hold the working parts, said frame having overhanging arms 11 supporting a bearing 12 in which a plunger 18 is vertically reciprocable. Said 1927. Serial No. 193.039.

plunger carries on its lower end a member 9- to which is secured a pad 15 of gelatin or other suitable material having a surface Mounted in guideways 16 in the frame is a slide 17 on which is mounted the die 14 on which is formed the design to be printed or embossed on the work. Saidcarrier is slidable in said guideways to bring the die into and out of alinement with the printing member. Any suitable-mechanism may be employed for this purpose. As shown in the drawings the die carrier 17 has secured to its underside a rack 18 which engages with a gear 19 mounted on a rotary shaft 20. Said shaft 20 may be driven byany suitable means to rotate the shaft first in one direc tion and then in the opposite direction to move the slide forward and back at the proper times for moving the die into its forward position beneath the printing The invention will be fully understood An inking roll 21 is provided" above the position to be path of movement of the die so that the die will engage with said inking roll when the die is moved to and from its operative position with relation to the printing member. A wiper-22 isprovided which engages with the die in its forward movement to wipe off the surplus ink. A work holder 2 1 is mounted on a swinging arm 25 which at one end is fixedly mounted on a stud 26 pivoted in a bracket 27 so that said arm 25 is adapted to swing in a horizontal plane.

A bumper 28 is attached to the forward end of the die in position adapted to en gage said holder arm 25 when the said die moves forward. A spring 29 is connected at one end with the said arm 25 intermediate the pivot end of said arm and the work support end of the arm, the other end of said spring being connected with a fixed portion 30 of the frame. Said spring is normally in contracted position as shown in Figs. 1 and 3 and holds the work holder arm in the position for the work holding 111g member. A stop pin 31 prevents the portion to be in alinement with the print said arm from swinging too farto the right as viewed "in "the drawings;

When the die is moved by its carrier from the retracted position shown in dotted lines in Fig. 1 as far forward as shown in full lines 7 in Figs. 1 and 3, the said b'ump'er28 will en gage the said swinging arm and in its continued forward movement to bring the die into alinement with the printing mem:

her it will turn the said work holder am out of alinement with the printingmember as shown in Fig. 4, thereby expanding the spring 29 andputting the spring under tension ready to turn the said work holding arm back into position shown in Figs. 1 and 3 as shown as the die is retracted. The said arm will be positively held by the bumper 28 in the position shown in Fig. 4 until the gear 19 rotates in the reverse direction to retract the rack 18 and the die carrier with its die 14.

The shaft 20,

- able mechanism (not shown) Theplunger 13 maybe operated by any suitable mechanism to; adjust the range of movement, the mechanism shown 'in the drawings being a hand wheel 82 and a having a vertically reciprocable printing worm 33. Any suitable mechanism, either hand or ower driven may be employed to operate t e plunger for alternately engaging the die and the work. The actuating mechanism is not shown in the drawings as the particular mechanism for that purpose does not form a part of the present inven- What I claim is: 1- 1 1 a 1 A machine, of the character described member, a work holder mounted on an arm pivotally mounted adjacent the path of movement of the 'E printing "-member and adapted to swing in a horizontal plane on its pivot to bring the workl into and out of alinementwith the printing member, a

die having thereon the design to be printed,

a reciprocable die carrier, meansfor recipro may be driven by anyisuit cating the diegcarrier to 'move'the-die into and out of aline'ment with the printing member, and a bumper carried by the die carrier which when the die is movedinto operative position beneath the printing member engages "the said work holder arm .and turns iton' ;pivot to movethe work 7 holder out of alinement with the printing i i V it 2. A machine of the character described member. 4

theworkinto and in position to hol the work iinwalinement 1 with the printing member, a :reciprocable diehcarrier, means for movingpthe carrier to move the die into and outofa'linemaent with "thexprinting, member, and-a bumper carried by the die which whenrthe. die is' moved into operative rjposition beneath the printing member [engages thel'saidfwork holder arm and turns it ioniits'pivot to moive the work holder out of alinement with the printing member. v .v q

3. A machine of the character described having a vertically 'reciprocable printing member, a wvork holder pivotall mounted adjacent the path of. movement 0 i the printing member, :means for normally retaining the said work holder imposition to hold the work inalinement withthe printing member, adie having thereon the-desi printed, means for moving the die intoand out of operative 1 position withre'lation to the; printin member and means whereby when the die iszmoved into-operativeposition; with tobe relation to the i printing 1 member it will 1mm i the work holderongits pivot and :move the;

work holder out of operati-iterrelation lfiOrtllB printing member. a g In testimonyywhereot l afiixim signature.

SKIDMGRE lHARA.

Images