US434526A

US434526A - richter

Info

Publication number: US434526A
Authority: US
Publication date: 1890-08-19
Anticipated expiration: 1907-08-19

Description

3 Sheets-:Sheet 1.

(No Model.)

K RICHTER MACHINE FOR MAKING BOXES.

Paten ted Aug 19, 1890.

MN Q I fiwenior:

W pas awilliwen fer (No Model.) 3 Sheets-Sheet 2.

K. RICHTER. MACHINE FOR MAKING BOXES.

No. 434,526. Patented Aug. 19, 1890.

(No Model.) 3 Sheets-Sheet 3.

K. RICHTER.

MAOHINB FOR MAKING BOXES.

No. 434,526. Patented Aug. 19, 1890 Q mm" Q: J l v T EEK? In ll w M m Qzwzzgzmie]:

MOI/66] UNITED STATES- PATENT OFFICE.

KARL RICHTER, or HERNALS, NEAR VIENNA, AUSTRIA-HUNGARY, ASSIGNOR OF TWO-THIRDS TO LOWIT & 00., OF SAME PLACE.

MACHINE FOR MAKING BOXES.

SPECIFICATION forming part of Letters Patent No. 434,526, dated August 19, 1890.

Application filed January 10, 1890. Serial No. 336.600. (No model.)

able others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of thisspecification. 7

Referring to the drawings,Figure 1 is a top plan view, and Fig. 2 is a perspective view, of a machine embodying my invention, which relates to that class of machines especially designed for the manufacture of plates or dishes from blanks of tin or other suitable material,- but which by a substitution of proper dies may be employed for the production or manufacture of other articles, the stripper-plate on the left of the machine being removed, and Fig. 3 is a longitudinal sectional elevation of the machine.

. The object of the invention is to provide means for rapidly and economically making articles of the class referred to, and in simplifying the construction of the operative devices; and to these ends the invention consists in structural features and combinations of cooperative elements, as will now be fully described.

In the drawings, a indicates the drivingshaft that is suitablygeared to the driven or operative shaft a. The latter shaft carries an eccentric c, that has guide-flanges c at each end formed on its edges and works in the oblong aperture or eye of an eccentricstrap d. To the eccentric-strap d are connected two die-carriers or plunger-rods g and g',that are guided in their reciprocating movements imparted thereto by the eccentric through the medium of the strap in bearings e and e, respectively.

Insteadof securing the die-carrier rods to the eccentric-strap d they may form an integral part thereof, which construction is preferred. Each rod carries a male die It and h, detachably secured thereto by means of a setscrew 3, so that the dies may be readily removed, and others of different dimensions or form substituted. These male dies co-operate with female dies 1' i, of which one is shown in Fig. 2, said dies 1 11 being secured in holders or housings j and j and adapted to be adjusted therein by means of set-screwsf and f. These female diest' r" are also detachably connected with their holders so as to adaptthem for removal and substitution of others therefor. The die-holders j and 7" are each provided with a slotted lateral extension j and 7' respectively, in the slot of which operates a feed-slide 0, rigidly connected with a guide-rod r, that is guided in its reciprocating movements in a bearing formed in the end of a standard 3. In the front face of the lateral extension or arm of the die-holders is formed an aperture, in which is fitted a cylinder 1;, that is partly open at top for the ready insertion of the blanks B. The said blanks are fed into the feed-slot through the opening in the front face of the lateral extension of the female-die holders j and j by means of a piston w, the rod w whereof is connected to one arm :13 of a bell-crank lever X, said arm being slotted and connected to the piston-rod by means of a bolt and nut. From the arm 00 of the bell-crank lever X is suspended a Weight W, that keeps the piston in contact with the blanks B, and feeds the same into the feed-slot as they are displaced by the feed-slide 0.

A reciprocating motion is imparted to the feed-slide through the medium of a crank O on shaft (1, the arm of which has alongitudinal slot 0, into which extends an arm m of a connecting-rod m that is pivoted upon a slide-bar n. The slide-bar n is guided in its movements in suitable brackets b and its and nut 15 the radial arm q is secured to the segment, and by means of which the relative position of the arm q is adjusted in order to properly time the movements thereof. To the upper end of spindle a is secured a slotted arm q, into the slot of which extends a pin or bolt *r, projecting from the under side of the guide-rod 1'. From the front face of the female-die holders j and j, and centrally above the die-seata like pin being secured to the die-holder below the die-seat out of the wayof the opening in the table through which the stamped article falls-projects a pin On these pins 70' is loosely mounted a stripper-plate 7c, provided with an opening for the passage of the male-die carrier or rod 9 or 9, so that as the said rods recede from the female die the finished article carried along therewith is stripped off and falls through asuitable opening 0 in the table of the frame into a receptacle or to the floor. The stripper-plates k are centered on the pins 70', on which they slide freely and are detachably and adjustably secured to the table T, on which the operative devices are mounted. To this end the plates are provided with a foot k through which passes a set bolt or screw that also passes through a slot in the table, so that the plates 70 can be adjusted toward or from the female dies within certain limits. By this means stripper-plates having an opening of a diameter corresponding with that of a particular die may be secured and adjusted in position when the machine is used for making articles either of different form or the dimension of which varies, the female-die holders being also detachably secured to the table '1.

Instead of the means described fordetachably connecting the plates 70 with and adj usting the same on the pins in, the opening in the said disks or plates 70, through which the pin 70 passes, may be screw-threaded and the pin 7c correspondingly threaded, thereby dispensing with the foot 70 and the set bolt or screw.

The operation of the machine is as follows: The male-die carriers are so timed in their movements as that when one moves toward its female die the other recedes, and the feedslides 0 are timed in their movements to carry a blank to the female die during the mood ing motion of the male-die carrier, or said feed-slides may be so timed as to feed a blank to said female die while the male die is moving toward it, so that the operation of feeding the blanks and stamping the articles is practically an uninterrupted one. The feedcylinders being filled with blanks and the shaftarevolved, one of the male-die carrierssay the carrier g-moves to the female die 2'', in which a blank has previously been placed, the blank being shaped between the dies. During this movement of the die-carrier g the other die-carrier g recedes from its female die, while the feed-slide 0, that feeds the blank to the female-die holder j, advances and carries the blank to said die through the slot or passage in its holder, said blank havin g been previously fed into the slot through the medium of the piston 10. Of course while the slide 0 is in its forward position the feedaperture for the blanks is closed thereby and is uncovered as the slide again returns to its normal position, allowing the piston w to feed another blank, the diameter of the feedslot being such as to admit of free motion of a blank along the same under the impulse of the feed-slide 0, so that but one blank at a time can be fed to the slot. During the receding or negative motion of the carrier g and the advancing or positive motion of the carrier g, the feed-slide for the female-die holder j advances and feeds a blank to the die 2" to be stamped to shape, when the carrier g again advances, these operations taking place alternately.

It will of course be readily understood that the machine would operate just as well with a single pair of dies and actuating mechanism, and the advantages derived from the duplication of the operative elements are obvious. 0n the other hand, it will also be obvious that, instead of weighting the pistons 11; to cause the same to exert a constant pressure upon the blanks B, a helical spring may be mounted on the piston-rod intermediate of the piston and outer cylinder-head, as shown in dotted lines in Fig. 1, at the right of the machine.

Having now described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a machine of the class described, the combination, with male and female die oarriers, the latter carrier being provided with an extension at right angles to its horizontal axis, the said extension having a narrow vertical slit or slot opening into the said femaledie carrier and with a feed-opening inits front face communicating with said slot, of a blankholder connected with said feed-opening, a

piston for feeding the blanks to the feed-slot, a feed-slide for feeding the blanks from the slot to the female-die carrier, a revoluble shaft, and suitable intermediate connections adapted to reciprocate the male-die carrier and feedslide at right angles to each other in a horizontal plane, substantially as described.

2. In a machine of the class described, the combination, with a stationary die-holderhaving a lateral extension provided with a vertical feed-slot opening into said holder, the adjusting-screw f, for adjusting the die within its holder, a feed-slide for feeding the blank from the slot to the holder, a blank-holder, and a feed-piston adapted to automatically feed the blanks from the blank-holder to the slot in the extension of the die-holder, of a maledie carrier, a revoluble shaft, and intermediate connections adapted to impart a horizontal reciprocating motion to the male-die car- 'rier and feed-slide at right angles to each other, substantially as described.

3. In a machine of the class described, the combination, with two stationary female-die holders arranged to face each other, of two connected male-die carriers adapted to be reciprocated between said female-die holders and to co-operate therewith in shaping the blanks, substantially as described.

4. In a machine of the class described, the combination, with two stationary female-die carriers arranged to face each other, of two male-die carriers, a revoluble shaft interposed between said carriers, an eccentric on said shaft, and an eccentric-strap connected to both male-die carriers to reciprocate the samc'between the female-die carrier, substantially as described.

5. In a machine of the class described, the combination, with two stationary female-die carriers arranged to face each other and having a lateral extension provided with a feed slot or passage, and a feed-slide arranged in said passage, of two male-die carriers, arevoluble shaft interposed between said carriers, an eccentric on said shaft, an eccentric-strap connected to both male-die carriers to reciprocate the same between the female-die holders, and intermediate mechanism connecting the revoluble shaft with the feed-slides and adapted to impart to them a reciprocating motion in the passage of the extensions of the stationary die-holders, substantially as described.

6. In a machine of the class described, the combination, with two stationary die-holders arranged to face each other and having a lateral extension provided with a feed slot or passage and with a feed-aperture at right angles to said' passage, a blank-holder connected with said feed-aperture, a feed-piston adapted to feed the blanks to the passage in said extensions, and a feed-slide arranged in said passage, of two male-die carriers, a revoluble shaft interposed between the carriers,

an eccentric on said shaft, anceccentric-strap connected to both male-die carriers to reciprocate the same between the female-die holders, and intermediate mechanism connecting the shaft with the feed-slides and adapted to impart to them a reciprocating motion in the. passage of the extensions of the stationary die-holders, substantially as described.

7. In a machine of the class described, the combination, with two stationary die-holders arranged to face each other and having a lateral extension provided with a feed slot or passage and with a feed -aperture at right angles to said passage, a blank-holder connected with said feed-aperture, a feed-piston adapted to automatically feed the blanks to the passage in said extensions, and a feedslide arranged in said passage, of two maledie carriers, a revoluble shaft interposed between the carriers, an eccentric on said shaft, an eccentric-strap connected to both male-die carriers to reciprocate the same between the female-die holders, and intermediate mechanism connecting the shaft with the feed-slides and adapted to impart to them a reciprocating motion in the passage of the extensions of the stationary die-holders, substantially as described.

8. The combination, with the feed-slide 0, the slotted radial armq, connected with the slide, the rock-spindle u, the slotted radial arm q, and the rocking bar a, of the slotted segment Q and the nut and bolt t, by means of which said radial arm q is adj ustably secured to the segment, substantially as and for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses,

KARL RICHTER. Witnesses:

RUDOLF VON PLANK, J ULIUS GOLDSOHMIDT.