US2258471A - Ink-marking and perforating machine - Google Patents

Description

Oct. 7, 1941. s. E. ROSENBERG INk'MARKING AND PERFORATING' MACHINE 2 Sheets-Sheet 1 Filed .March 7, 1938 Oct. 1941- s. E. RQSENBERG 2,258,471

INK-MARKING AND PERFORATING MACHINE Filed March 7, 1938 2 Sheets-Sheet 2 & O Q

Patented Oct. 7, 1 941 INK-MARKING AND PEREORATING MACHINE Stig E. Rosenberg, Brockton, Mass.

Application March 7, 1938, seri l-No. 194,299

1 Claim.

The present invention relates to ornamenting machineswh'ich are used in the manufacture of shoes to perforate shoe uppers and parts thereforef 7 It is highly desirable in these machines to provide means for supporting either anvil or flat bed dies and 'to arrangefor the addition of an attachment in'order that the machine may perform also a combined ink-marking and'perforating operation. r

The desirability of having a machine perform all the various types, ofshoe upper ornamentations has created'a serious problem with respect to the combined ink-marking and perforating attachment, resulting in a complicated mechanism with which it is impracticable to perform a combined ink-marking and perforating operation upon a certain type of work. a

The principal object of the present invention is to produce a combined ink-marking and perforating attachment for a standard perforating machine which'willbe simple in construction, cheap to manufacture and maintain in operation, and will operate on all types of work in an efiicient and reliable manner.

To the accomplishment of this object, and such'others as may appear hereinafter, the various features of the present invention reside in certain devices, combinations and arrangements of parts hereinafter described and then set forth broadly and in detail in the appended claim which possesses advantages readily apparent to those skilled in the art.

The various features ofthe present invention will be readily understood from an inspection of the accompanying drawing illustrating the best form of the invention, at present devised, in

which: 7 V

Figure l is a detail view in left side elevation, partly in section, of the'combined ink-marking and perforating attachment to the "Brockton perforating machine,

Fig. 2 is a detail view in front elevation of the attachment, and t Fig. 3 is, a detail view in perspective showing how the work supportor stripper plate is supported yieldingly fromthe tube rest plate.

As shown inFig. 1, the Brockton cut-out, or

are two horizontal rods 6 and T (Fig. 2), which support adjustably two sets of tracks 8 and 9, ,respectively, the lower set beingused for anvil dies and the upper set being used for flat bed dies in accordance with standard Brockton construction disclosed heretofore in the patent to Rosenberg, No. 2,108,447, granted February 15, 1938. V

In the illustrated embodiment of theinVention, the tracks, 9 are each provided with a fiat is,'the die H is a'y'combined ink-marking and perforating die in which the'marking die I2 and the work support or stripper plate 13 are independently spring mounted. I

' As usual in this type of die, the perforating tubes [4, having upstanding cutting edges [5, are mounted in a tubeholder plate 16 which is supported by a tube rest plate l1 carried in turn by a die block I8, the front face of which is provided with a handle lBfito facilitate the movement of the die'into and out of the machine and from and to a position of pressure to and from a position of clearance. As illustrated in Fig. 2, the

opposite sides of the die block l8 areprovided,"

respectively, with a ledge 20 which slides in a way'2l formed in the inside face of each' of the tracks 9; By means of this construction the die II is prevented from bouncing or from being elevated. during operation or sliding. movement.

As shown in Figs. 1 and 3, the tube rest plate [1' is extended rearwardly to form a support for the work support or. stripper plate l3, At its rear edge theplate I3 is hinged to a block 22,

to the bottomface of which is threaded two depending pins 23' and 24 which pass loosely throughth e tube rest plate ll near its rearend. The block 22 is maintained normally elevated by springs 25 and 2B which are coiled, respectively, about the pins 23 and 24 and interposed between the bottom of the block 22 and the tube rest plate I1. The-upward movement of the.

block 22 under the influence of the springs 25 and 26 is limited by a head 21 (only one of which is shown, Fig. l) on the bottom ,of each of the pins 23 and 24;. a y Y It will be understood by those skilled in the art that h n ps s rfa o t plate 3 w ll be provided with suitable work clamping and gauging devices and with 4 suitable apertures which register with the marking die l2 and perforating tubes I4 to allow the work supported upon the plate |3 to be marked and perforated each time the die is moved into a position of pressure. These various work clamping, work gauging devices and apertures are disclosed in my PatentNo, 2,093,099,

\ With -..the ,construction described, when the ,combined ink-marking and perforating die is ;moved into the position of pressure and the usual ,iriachine clutch tripped to cause the descent of the pressing member 5, the usual face plate thereon forces the usual backing paper initially against the work on the plate I3, but the springs 25 and 26 back up the plate l3 with sufficient pressure to cause the work to be flattened thereon and to be drum-headed across the apertures therein. The springs 25 and 26 act upon the stripper plate l3 in the same manner as the springs 60 and 62, disclosed in my Patent No. 2,093,099, act upon the combined work supporting and stripper plate 50 disclosed therein. Then the plate l3, the paper backed face plate and the work clamped therebetween are carried down to engage the drumheaded portion of the work successively with the marking and perforating dies. After the marking and perforating operation, the work remains clamped between the plate l3 and the paper backed face plate until the plate l3 returns to its original position whereupon the ascending paper backed face plate on the pressing member 5 withdraws from the work and leaves it unclamped upon the plate I 3. of the plate l3 to its original elevated position it acts as the main stripper to strip the work from the cutting edges of the tubes M. The plate l3 thus constitutes a combined work support and stripper.

It will be understood by those skilled in the art that the beneficial drum-heading of the work across the apertures of the work supporting plate |3 would take place even if no paper was used to back the face plate on the pressing member as disclosed in my pending application Serial No. 189,370, filed February 8, 1938.

In the machine disclosed in my Patent No. 2,093,099, the ink-marking and perforating elements of the die, during use, remained stationary in the position of pressure, the work support being movable from and to the position of pressure to and from a position of clearance, there being an inking roll connected to move with the work support so that as it moved into and out of the position of clearance the inking roll rolled over the marking edge of the marking die and replenished it with ink.

In certain features, the machine disclosed in my Patent No. 2,093,099 advanced the art of combined ink-marking and perforating and these beneficial features have been embodied in the illustrated embodiment of the invention. But the machine disclosed in my Patent No. 2,093,099 could not, be used in a practicable manner to ink-mark and perforate plugs which must be pinked out of the blanks thereof, the waste constituting a thin peripheral ring which remained upon the work support after the combined inkmarking and perforating operation while the finished piece remained on the dies. In the machine disclosed in my Patent No. 2,093,099, when the work support was moved into the position of clearance the inking roll ran over the finished piece causing it to be smeared with ink and pre- During the return with ink.

In order to permit plugs to be operated upon, the illustrated embodiment of the present invention is provided with means for tipping the work support |3 upwardly about its hinged connection with the block 22 as the die moves towards the position of clearance, thus providing a space in which the operatives hand may be inserted to remove the finished plug from the dies.

To this end the front face of the bed 4 carries two brackets 28 and 29 (Fig. 2) arranged on opposite sides, respectively, of the tracks 9. The free upper end of each bracket is yoked (Fig. 1), to support a needle-bearing 30 forming journals for a horizontal shaft 3|. Adjacent the inside face of each bracket the shaft 3| carries a ball-bearing race 32 (Fig. 1), which supports a roll 33. The needle-bearings and the rolls are maintained in a fixed position longitudinally of the shaft 3| by collars 34 and 35, the left-hand collar 34 (Fig. 2'), being provided with a head 36 to facilitate rotating the shaft 3| for a purpose to be described.

With this construction, when the die is pulled from the position of pressure towards the position of clearance, the turned-up front end 31 of the work support |3 engages the rolls 33, thus tipping the plate l3 upwardly on its hinged connection with the block 22, thereby providing room for the operative to insert her hand and remove the plug from the marking and cutting edges of the die.

To ink the marking edge during its travel further towards the position of clearance, the shaft 3| carries a sponge-rubber roll 38 having a diameter smaller than that of the rolls 33 so that the bottom of the plate l3 may not be smeared. This inking roll 38 rolls over the marking edge I2 each time the die is moved from the position of pressure to the position of clearance and back into the position of pressure.

The action of the rolls 33 in elevating the plate l3 and of the inking roll 38 in inking the marking edge places no extra burden on the operative in moving the die owing to the journalling of the shaft 3| on the needle-bearings 30 and the mounting of the rolls 33 on the ball races 32. During the movement of the die into the position of clearance, the rolls 33 rotate clockwise under the influence of the moving plate |3 while the shaft 3| and the inking roll 38 rotate in the opposite direction under the influence of the moving marking edge. During the movement of the die back into the position of pressure the rolls 33 and the inking roll 38 rotate in a counter clockwise and clockwise direction, respectively.

When the die is moved back towards the position of pressure, the front end of the work sup-v port|3 drops off the rolls 33, but the work sup-. port is held clear of the marking edge |2 by a pair of spring-pressed pins 39 and 40 supported from the front end of the die (Fig. 2).

The height of the inking roll 38 with respect to the marking edge l2 may be regulated by two screws 4| and 42 carried, respectively, by the yoked ends of the brackets 23 and 29, the point. on each screw being engaged with the needlebearing 3|].-

The inking roll 38 may be supplied with ink by the operative in any convenient manner, for instance, by brushing, the shaft 3| being rotated by the head 36 to facilitate this operation. Some operatives'are right-handed, others left-handed. If thehead 36 is not located on the side of the machine convenient to the operative, the shaft 3| and its associated parts may be withdrawn from the yoked-supports, reversed and reinserted in them with the head 36 on the opposite side of the machine. Thus the shaft 3| and its associated parts may be withdrawn from the machine when it is to be used for cutting-out or perforating, without ink-marking.

As indicated in Fig. 1 the free ends of the brackets 28 and 29 may be provided with a plurality of yoke supports for the shaft 3| in order to accommodate the machine for long or short dies.

Nothing herein explained is to be interpreted as limiting thevarious featuresof the present invention in the scope of its application to use in connection with the particular machine or the particular mode of operation or any combination thereof selected for purposes of illustration and explanation. While the particulars of construction herein set forth are well suited to one mechanical form of the invention and to the uses to which it is put, it is not limited as to these uses, nor to these details of construction, nor to the conjoint use of all its features, nor is it to be understood that these particulars are essential since they may be modified within the skill of the artisan without departing from the true scope of the actual invention, characterizing features of which are set forth in the following claim by the intentional use of generic terms and expressions inclusive of various modifications.

What is claimed as new, is:

In a combined ink-marking and perforating machine, the combination with a die movable from and to a position of pressure to and from a position of clearance, a work support movable with the die and pivoted to swing about an axis adjacent its rear edge, a pair of stationary supports mounted on opposite sides of the machine, respectively, a horizontal shaft journalled in the supports, and an inking roll carried by the shaft, of a ball-bearing roll having a diameter larger than that of the inking roll, supported from the shaft, interposed between one end of the inking roll and the adjacent support and engageable with the lower face of the work support to space it from the inking roll during movement of the die into the position of clearance.

S'IIG E. ROSENBERG.

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