US2224220A - Partition assembling machine - Google Patents

Description

I5 Sheets-Sheet l V ATl'ORNEY.

Dec. 10, 1940. c. G. DAUBr-:R l

PARTITION ASSEMBLING MACHINE Filed June 25, 1939 EWI.

c. GQDAUBER yPARTITIIION ASSEMBLING 'MACHINE Dec. 10, 1940.v

'Filed June 23. 19:59 ls Smeets-sheet 2 Y VA'r'roRN EY.

Dec-'10, 1940- c. G. DAUBER PARTITION ASSEMBLING MACHINE Filed Jun 23, 1939 a sheets-sheet s A'ITORN EY- Patented Dec. l0, 1940. A l

UNITED V'STATES rAn'rrrloN AssEMiJNG MACHINE Charles' G. Dauber, Oshkosh, Wis., assigner to The Daubex" Company, Oshkosh, Wis., a corporation of Wisconsin Application June 23, 1939, Serial No. 280,699

s claims. (C1. sia- 31) I am a joint patentee, there is disclosed a complete machine for cutting, slotting and assembling paper board partitions to form carton interior or sub-dividers. In the machine of said patent, due to the fac-t that the paper board material must be bent or extended over and about certain lnstrumentalities, it is not practical to use corrugated or chip board for the partition forming material as said latter class of material can,

not be bent.

It is, therefore, a primary object of the-present invention to provide a partition assembling machine adapted to g.assemble sets of pre-formed corrugated or chip board partition strips and which handles the partition strips or material in such a manner that the same are not subjected to any bending or damaging deflection.

A further object of the invention is to provide a complete corrugated or chip board partition assembling machine which includes as a portion of the entire mechanism, a partition strip assembly feeding arrangement of the type covered by my co-pending application, Serial No. 221,902, iiled July 29, 1938. f

' A further object of the invention is `to provide a machine of the character described which 35 has adjustable and interchangeable elements to in the mechanism for steppedly advancing or projecting partitions of one group into assembly position is synchronized with the mechanism for advancing the partitions of the other group.

A further object of the inventionis to provide a corrugated or chip board partition assembling machine which is of very simple construction, is eiiicient, economical and automatic in operation, is strong and durable, and 'is well adapted for the purposes described.

With the above and other objects in view the invention consists of the improved partition assembling machine, and its parts and combinations as set forth in the ,claimsl and all equivalents thereof. y

In the accompanying drawings in which the same reference characters indicate the same parts in all of the views:

Fig. 1 is a front and side perspective View of Ithe improved partition assembling machine;

Fig. 2 is another perspective view of the machine showing the opposite side and the rear thereof;

Fig. 3 is a longitudinal vertical sectional view of the machine and on a larger scale;

' Fig. 4 is a fragmentary, detail sectional view taken on line 4 4 of Fig. 3;

Fig. 5 is a detail sectional view taken on line 5--5 of Fig. 4;

Fig. 6 is an enlarged fragmentary plan view of the feeding mechanism for the longitudinal partition strips; and

Fig. 7 is an enlarged fragmentary side Viewl of a portion of the mechanismvshown in Fig. 6.

Referring now more particularly to the drawings it will appear that the improved partition assembling machine includes a box-like base or casing I0 having mounted therein and thereon many of the working parts of the machine. 'I'he lower portion of the base supports suitable bearing members II in which is journaled a main drive shaft I2 of the. machine. Anouter end portion of said shaft has fast thereon a large pulley wheel I3 connected by a belt I4 with the pulley wheel I5 on the shaft of a variable speed electric motor I6. The motor receives its energy from a conventional source of electric current.

Forwardly of the drive shaft I2 and journaled in the casing, transversely thereof, is a clutch shaft Il'. Said clutch shaft is driven from the drive shaft by means of a small pinion I8 fast on the drive shaft which meshes with a large gear I9 carried by a sleeve 23 on one section of the clutch shaft. A movable clutch element'20 is splined to another portion of the shaft I 'l and its teeth 2l may be brought into and out of engagement with the teeth 22 of the sleeve 23. The clutch element 20 is moved into and out of clutching position by a fork 24 mounted fast on a longitudinally extending shaft 25. At the forward end of the machine housing said shaft carries a miter gear 26 engaged bya segment gear 21. The segment gear is on a rod 28 which also carries a clutch lever 29. With reference to Fig. 3 when said clutch lever is in the full line position the shaft 25, through the various connections explained, will have been turned to have caused the fork 24 to engage the clutch element 20 with the teeth of the clutch element 23. With the clutch lever in this position, and with the motor `I6 in operation, the mechanism for the entire machine will be in operation.' However,l if the clutch lever 29 is moved to the broken line position of Flg. 3, the clutch will be disengaged and the machine will idle. 5 It should be noted that the clutch lever rod 28 is mounted in bracket plates 39 carried by 'the lower forward portion of the housing I0. Also, on the driven portion ofthe clutch shaft I1 there is a friction brake 3i having a braking I l strip 32 coiled thereabout. The outer end of the braking strip is carried by a bolt 33 which is adjustably threaded into-a wall of the housing I9. Adjustments of the bolt 33 will vary the tension which the strip 32 imposes on the surface of the l brake drum 3i. 'Ihe brake is for the purpose of preventing coasting of 'the mechanism. The inner end of the braking strip is anchored to the housing or frame, as at't (Fig. 3)

On a reduced end of the clutch shaft il (see Figs. 1 and 4) there is a slotted guide block 35 in which is adjustably secured a crank pin 36. Pivotally mounted on one end of the crank pin is a socket member 31 which adjustably receives one end portion of/a crank rod 38. Adjustments of the crank pin 36 and rod 38 will vary the amount of reciprocatory movement of said crank rod. The other end of said crank rod is pivotally secured to the lower end of an arm of a bellcrank lever 39, pivotally mounted on a forward side portion of the housing I0, as -at 40. Another arm of the bell-crank lever 39 is pivotally connected with one arm of an upper bell-crank lever 4I by a bar 42, While still another arm of the lower bell-crank lever 39 is pivotally connected with the other arm oi the upper bell-crank lever 4i by a bar 43. This arrangement is effective to reciprocate a rack bar 44 whose inner end is carried by the bar 43 and whose serrated outer end engages a pinion 45 fast on a forward transverse shaft 46. Hence, the shaft 46 is oscillated and the motion of this shaft is effective to operate certain longitudinal partition feeding mechanism, as will hereinafter appear. Said longitudinal partitions, indicated by the numerals 41 are pre-formed and are available for as sembly with transverse partitions 48 which are fed into assembly positions by the machine and relative to steppedly advanced sets of the partitions 41.

, With special reference to the heretofore menslotted strips 15. Against the side of each strip there is mounted in vertical position a partition supporting .panel 49 having an outwardly flared 65 wing 49' on its inner end, as well as a slightly outwardly inclined and tapered plate 50 with an out-turned guiding edge 5I at its upper edge. 'I'he panels 49 are adapted to 'support the rear end portions of forwardly advanced pre-formed partitions 41, while the plates 59 receive and support the forward end portions of succeeding partitions, The succeeding partitions may be put into position indiscriminately at any stage of the advancement of the forward partitions, and the 75 inclination of the plates 50, together with the cut- V turned edges 5l thereof and the wings 49', permit length. Extending vertically upwardly from the top face of each bar is a pair of spaced apart posts 52 with each post having the hub portion l0 of a laterally extending finger 53 pivotally mounted thereon. The outer end portion of each of said fingers is reduced and angled for entrance into apertures 54 of the pre-formed partitions 41, and the fingers are resiliently edged toward the 15 faces of said partitions by springs. The posts and fingers are so arranged that when the iingers are in engaging positions, the distance between the ends of a pair is equal to the distance between three apertures 54 in a partition. To 20 insure this condition the rear posts 52 may be longitudinally adjustably mounted on their bars. Each slotted strip 15, near its inner end, carries on a suitable bracket a curved band spring 55 to engage a portion of a forward partition and to 25 hold it against the panel 48, and a resiliently mounted pivotal finger 56 for engaging a lower fast portion of a partition.

In order that the bars 88 may be reciprocated, each of the same carries a depending yoke 83 30 which straddles and is moved by a transverse connection 84, The transverse connection is moved forwardly and rearwardly relative to the platform 69, lto thereby move the bars 89 in their slotted strips 15 with resulting intermittent ad- 35 vancing'movements of the partitions 41 through -the medium of the upper transverse rock shaft 46 previously referred to. Said rock shaft has fast thereon a pair of cranks 86 whose end portions are pivotally connected with a suitable portion of 40 the connection 84. Through themechanism described theadvancing bars 80 of the partition feeding platform are intermittently reciprocated forwardly and rearwardly. On movements of said bars toward the machine, the ends of the fingers 45 53 drop into spaced pairs of apertures 54 in the forward partitions 41. After engagement of the same and continued forward movement of the bars the engaged partitions are'moved inwardly until the forward limit of movement of said bars 5 is reached, the movement being initially adjusted so as to bring a series of slots in said pre-formed partitions beyond the ends of the panels 49 and into correct assembly position for engagement with a transverse partition 48 being projected 55 downwardly from another portion of the machine. Other specific details of the longitudinal partition feeding mechanism need not here be referred to and it may be stated that said mechanism is fully described in my co-pending appli- 60 cation, Serial No. 221,902, filed July 29, 1938.

Projecting upwardly from the top forward portion of the housing i 0 is a frame 81 which rigidly v supports an abutment plate 88. Adjacent the innervface of said plate there is disposed a vertically reciprocable plunger blade 89. The side edges of said bladev carry guide lugs 90 which move in vertical slots 9| in the end members of the frame 81,

The mechanism for reciprocating the plunger blade 89 includes the following elements: On one end of the clutch shaftv l1 there is mounted fast a crank 92 to whose outer end a connecting rod 93 is pivotally attached by' a wrist pin 94. The other end of said connecting rod is pivotally semember reciprocably mounted relative tothe support, resilient means carried by the slide member engageable in successive'stripslots upon reciprocations of said slide member in one direction and automatically releasable from said slots and movable longitudinally of a strip upon reclprocations o f saidA slide member in the opposite direction, means for holding a group of forward partition strips in parallel, steppedly advanced positions upon movements ofthe slide member in the latter direction, means for supporting a stack of transverse partition strips in inverted positions with the slots thereof opening downwardly, and means for intermittently removing the innermost strip in said stack downwardly from said stack and engaging its slots with an advanced series of slots in the rst-mentioned group of strips.

2. In a machine for assembling pre-formed partition strips, said strips including a set of longitudinal strips and a set of transverse strips and all of the strips having a longitudinal succession of spaced-apart slots therein, means for longitudinally movably supporting a group of laterally spaced longitudinal strips, said strips'being on their lower` edges with the slots thereof opening upwardly, means for automatically steppedly advancing the strips of said group without bending or deiiection as to planes, a station at which successive transverse partitions are interlocked with advanced slotted portions of the spaced longitudinal strips, a table on which a stack o f said transverse partitions are disposed with the slots thereof facing downwardly, a supporting plate adjacent the inner end of the table engaged by the face of the innermost partition of the stack, there being a slot between the inner end of the table and said plate, a reciprocatory blade movably mounted adjacent said plate and engageable -with the edge of an innermost transverse partition of the stack to eject the partition through said slot toward said assembly position, controlled means for automatically reciprocating said member, between advancing movement of the longitudinal strip moving means, and a common drive for the blade reciprocating means and for the longitudinal partition advancing means.

3. In a machine for assembling pre-formed partition strips, said strips including a set of longitudinal strips and a set of transverse strips and all of the strips having a longitudinal succession of spaced apart slots therein, a support on which one set of strips are vertically stationed and with the slots thereof opening upwardly, said support being arranged to accommodate overlapped portions of adjacent partitions, a slide member reciprocably mounted relative to the support, resilient means carried by the slide member engageable in successive strip slots upon reciprocations of said slide member in one direction and automatically releasable from said slots and movable longitudinally of a strip upon reciprocations of said slide member in the opposite direction, means for holding a group of'forward partition strips in parallel, steppedly advanced positions upon movements of the slide member in the latter direction, means for supporting a stack of partition strips of another set, and-means for intermittent-ly removing the innermost strip in `said stack' and engaging its slots with an advanced series. of slots in the mst-mentioned group of strips.

CHARLES G. DAUBER.

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