US1618042A - Bag-delivery mechanism - Google Patents

Description

1,618,042 1 1927' T. M. AVERY BAG DELIVERY MECHANISM Original Filed Sent. 30, 1925 5 sheets-Sheet l vamfoz Feb. 15, 1927- T. M. AVERY BAG DELIVERY MECHANISM Original Filed Sept. 30, 1925 5 Sheets-Shef 2 Feb. 15, 1921 T. M. AVERY BAG- DELIVERY MECHANISM Original Filed Sent. so, 1925 5 she ts-sheet z 3141mm can Feb. 15 192 7 T. M. AVERY BAG DELIVERY MECHANISM Original Filed SentfSO, 1925 5 Sheets-Sheet 4 mmmz T. M. AVERY BAG DELIVERY MECHANISM Feb, 15, 19270 5 Sheets-Sheet 5 Original Filed Sent. 30, 1925 avwemto c Patented Feb. "15, 19.2

v UNITED STATES TRUE M. AVERY, or .GLENS FALLS, NEW YORK, nss'renon TO umonnae a; PAZPER PATENT OFFICE.

CORPORATION OF HUDSON FALLS, NEW YORK; A CORPORATION OF NEW YORK.

' BAG-DELIVERY MECHANISM.

Origina plication filed September 30, 1925, Serial No. 59,668. Divided and thi application m Hay N o I 1a, 1926. Serial No. 110,002, 7, a r

The present invention relates to improvements in machines for making or making and printing bags and the like, and the primary object of the invention is to provide novel and improved means for stacking the fin ished bags in. piles each of a predetermmed or counted number, so that the bagsare delivered by the machine in bundles which may be readily removed from the machine ready for packing and shipment. Another object of the invention is to provide stackmg and counting mechanism which stacks the bags to alternately form'difi'erent piles or bundles sothat one completed pile orbundle'of'bags may be removed while the machine continues to operate and to deposit the bags m another pile. Another object of the invent on is to provide a novel. and improved chute and associated means for delivering the bags tq the stacking means. A further object of the-invention is to provide means whereby the stacking means and the bag delivery chute are adjustable to accommonumber;

Figure 4 is a detailed view of the triggers date them to bags ofdifi'erent sizes. The present application is a division of r my prior application Seria'lNo. 59,668, filed September 30, 1925. I F

In the accompanying drawings Figure 1 is a side elevation of a combined bag-forming and printing machine correresponding to that shown in my prior applica- ,t-ion referred to and which embodies the present invention; v

Fi 'ure 2 is a diagrammatic view of the bag-Forming and printing portions of the machineshowing the means which delivers the printed bags therefrom; i

' Figures 3 and 3 illustrate, respectively; the leftehand and right-hand ends of the bag-stacking portion of the delivery mechanism Whereby'the finished'bags are stacked in piles each of a predetermined or counted and controlling mechanism whereby the delivery mechanism is caused to op'erate to stack. the finished bags in, alternatetp-iles; and i e v Figure 5 is a detail view of the bagdelivery c hute or conveyor which conducts the finished bags from the printing or bagmaking portion of the machine to the ing mechanism;

Similar parts are designated by the same reference characters in the several views.

Counting and delivering mechanism embodylng the presentinve'ntion is applicable generally to machines for making bags or stack- .the like wherein it is desirable to bundle the bags or other articles in piles each of predetermmed or counted number, the invention being especially applicable to machines for making bags or for making and printing bags. The invention is shown in the present instance as applied to or forming part of a combined bag-making and printing machine of the type shown and described in my prior' application hereinbefore referred to and to which application reference is made for a complete understanding of the machine.

- The machine as shown maybe described briefly as comprising 'a former l which extends longitudinally ofthe main frame 2 andis adapted to receive a flat strip of paper which is fed thereto and folded around it by a folding device 3 in a manner well known to those' familiar with bag-making machines of this. general class. The paper the various parts of the machine are driv eiu the draw roll shafts being connected. by ears 15 and 16 and the gear 16 being driven tom the lower pinch roll shaft through a gear 19 which meshes with a pinion 2O fixed on the lower pinch roll shaft, i i

The severed bag sections are delivered from the'pinch rolls 6 toupper and lower folder rolls 45 and 46 which are gprovided with neans to nip and fold the leadingend of the bag section to form the bottom fold thereon, these rolls rotating at equal peripheral speed in the directions indicated by the arrows in Fig. 2, and the nipped bag section is carried by the rotation of the upper folder roll 45 to a point opposite to an impressiOn roll 107 which carries grippers 138, the leading folded endof the bag section being received and gripped by these grippers, im-

mediately following which the nipped end of the bag section is released from the upperfolder roll 45, and rotation of the impression roll 107 while the bag section is gripped thereon carries the bag section past printing rolls 123 and 124 which are driven in the direction of the arrows in Fig 2. A detailed description of these operations is contained in my prior application referred to, to which reference is made for a complete understanding thereof. The lower folder roll shaft 48 has a driving gear 49 fixed thereon, and this driving gear receives its motion from a gear 50, the latter meshing with a gear 51 which is fixed on the main or lower pinch roll shaft. The upper and lower folder rolls, the impresssion roll, and the printing cylinders may be driven .by gearing such as that fully shown and described in my prior application referred to. The finished bags are received from the impression roll 107 by a chute. For this purpose, doffers 165 may be employed which extend into close proximity to the surface of the impression roll, and a pair of rubber or other relatively yielding rollers 166 are provided which bear on the bag at points beyond the ends of the dofi'ers. These -rollers are pressed yieldingly against the impression roller by a spring 119 which is connected to an arm 168 fixed on the shaft 168 which carries the arms 167 on which the rollers 166 are mounted, the spring 119 holding the roller 168 on the end of the arm 168 against a suitably shaped cam 119 fixed on the shaft 119 of the impression roll. The rollers 166 are preferably capable ofacting independently of one another. As shownin Figure 5, the arms 167 which support these rollers are loosely or rotatably mounted on the shaft 168 and separate springs 169 which are interposed between the arms 167 and collars 170 which are clamped or otherwise adjustably fixed-on the shaft 168 act to independently force the rollers 166 into Contact with the longitudinal edges of the bag on the impression roll. As the leading edge of a bag on the impression roll approaches the rollers 166, the cam 119 acting on the cam roller 168 pushes the rollers 166 away from the periphery of the impression roll and at the same time the 'doffers 165' which are fixed to the shaft-l68 are moved into operative position to effect the transfer of a finished bag from the impression roll to the chute.

The finished bags are delivered by the doffers 165 and rollers166, or by any'other suitable means, to the entrance of a delivery chute which comprises, in the present instance, a'pair of endless belts 171 which pass over idler rollers 172 which mayv be loosely journaled on the shaft 168 at one end of the chute and over driving pulleys 173 on a shaft 174 which is mounted in bearings 175 at the opposite or lower end of the chute. These travelling belts providea surface on which the printed bags may rest and with which they may travel during theirv discharge from the machine. The shaft 174 to which the belt driven pulleys 173 are fixed may be driven by gears 176 fixedthereon and arranged to mesh with-gears 177, the latter being fixed on a shaft 178 which is mounted in bearing brackets 179. located 'at.

168 and 174 and to support the various parts of the chute, guides 185 being preferably provided at the sides of the chute to prevent lateral displacement of the bags. The intermediate portions of the 11 per stretches of the travelling belts may be supported by idler rollers. 186 which may be mounted on a cross member 187 which connects the side members 183 and intermediate tensioning rollers 188 may alsobe provided to engage the lower stretches of the belts, these tensioning rollers being shown mounted on arms 189. which are pivoted to swing about the cross member 187.

The guides 185 are preferably adjustable laterally in order to accommodate the chute to bags of different widths. For this purpose, a plate 190 having slotted lugs 191 formed thereon is clamped by the screws 192 to the opposite sides of the frame members 183 toward the upper end of the chute, this plate having transversely extending slots 193 therein, and a similanplate 194 is ,provided toward the lower end of the chute, this plate having slotted lugs 195 which are adjustably clamped by the screws "196 to the outer sides of the respective frame members 183, this lower plate also having transversely extending slots 197 therein.

iiu

' cred from the lower end of the delivery' of the bags laterally from the conveyor belts, but they are flanged as-shown, so that they overhang the lateral edges of the bags on the conveyor belts, and they thus prevent displacement of the bags by movement thereof in a directien away 'from the bag supporting surfaces'o'f the conveyor belts.

' The finished and printed bags are delivchute to the stacking and counting mechacondit-ion 'for removal *in convenient form from the machine. The present invention providesbag delivery means which is capale of'staekmg a predetermined number t bags, the operations of forming the successive piles being controlled automatically.

The bag stacking means, as shownin the .1 resent instance, embodies a duplex bag receiver which provides a pair or bag receiving compartm'ehts 200 and-200, this bag receiver being mounted on a cari'iage which is shiftable in a direction transversely of' the delivery-chut whereby either one or the other of the bag receiving compartments may be brought into position to receive and stack the bags delivered, by the chute. The

bag receiver may be-constructed in different. ways, As shown, it comprises a rear wall.

or plate 201, which for'ms'the back of both bag receiving compartments, and a bottom plate 202 which forms a stop and support for the bottom edges of the bags as they are dei verselyof-t he discharge end of the delivery livered into the receiver. The diflferent bag compartment-s ofthe receiver are separated by vertical partition plates 203 which may be located midway of the receiver, and the outer side walls of the compartments areformed by plates 1204 which are arranged vertically at'the. front of the rear plate 201 and toward the opposite ends thereof These end plates 204 are preferably adjustable in a direction toward and from the intermediate partition plates 203 in order to set the width ofthe compartments .to conform with the width of the bags to be'handled. For t'hese purposes,each of theend pihtes 204; may be provided'with a laterally extending flange 205 which is adapted to partly overlap :and lie flatwise against the face of the rear plate 201, and this flange is provided with a suitable number of longitudinal slots 206 to receive screws 20? whicln-when tightened,

will serveto hold the end plates in adjusted position, It will be observed from Figure 1 .that.' the upper edge of the rear plate 201 of the bag receiver is positioned below and in approximate alinement with the chute, so {Ihat'itwill receive the bags delivered there- 'y be carriage which supports 'the'bag receiver for, movement in a direction transchute whereby .one or the other of thegb'ag. receivingrompartments may bebrought into position to rec'eive'and stack the bags, comprises, in the present instance, a frame208 -which projeetsto or beyo hd-theyends of the operative relation of the bag-delivery mechanism to the machine from which it receivesthe bags is properly maintained.

By mounting theba receiver in the mans ner described, it may e shifted, by sliding its carriage along the rods 210, to'bring either of the bag receiving com artments thereof into positiontoreceive the a from :the-deliverychute; For example, in. igures 3 and 3, the left-hand compartment 200 is shown in position beneath the discharge end of-the delivery chute so thatthis compartment will receive and stack the bags-as they are delivered, but by shifting the bag receiver and its carriage toward the left, the compartment 200 wilgbemoved out of bag. receiving position an partment 200will be brought into such position.

Means is provided for automatically shifting the bag receiver to interrupt t e discharge of bags into one of the compartments when such compartment has received a pre-jdetermined number of bags and to bring the other compartment into-position to re- 'ceive and stack the bags, and such means is so constructed that it will effect theshift of the right-hand c'omrods 210 in order to support them, are inter-.

osed between the left-hand sideo f the cross .ead 213 and the left-hand slide bearings 209 of'the carriage, while the compression springs 215 are interposed betweenthe righthand side of the cross-head and the righthand slide bearings 209. \Vhen the crosshead, which is guided on the rods 210 is shift- Ied toward the'left or right, it willeompress the springsht the respective side thereof, and thereby tend to shift the carriage and the bag-receiver toward the left orright, as the case may be. In Figure 3,.the cross-head is shown shifted toward the left, the right hand springs 215' being then uncompressed while the springs 214 are compressed, and the tendency is for the bag receiver to shift .towardthe left under those conditions.

--Ithe rioperation ably-:this f -notioir headis reciprocated by a eonnecting rod' 2l6 ,wh'ichu is pivotally connected at. '21? to the cross-head and. is; operatively, connected to -r-a cranlopi-mQlS gwhich carried by. a crank (lisk- 219, the; latter being, formed on -or attached to a gearQZQ. This gear r220-.is mounted -on a.-stud 221 which-is supported on-a; cross menrber;2l2., of the frame 212,

and it meshes -w-ith a gear- 222 which is fixed on a shaft 223', this shaft be ing,-.jou rnaled in bearings'224; 'andr225 on the frame of the -machine. The? shaft QQZ-l-is constantly con-" :nected to-ianddriven.=.from a shaft 86 which is niou'ntedrinisuitable bearingson the frame Y of the machineand; is ;Xll'l\6l1 from the lower folderrollshaft .48.,through a worm wheel 187-011 the Jupper --endfof theshatt .86 and a-v H -w0rm --88- on the lower; folder. roll shaftQ' the shaft 86 being connected to I bevel gears 22-0 and-,-227....- The ratio otthe, gearing 1 between .thelower folder roll, 'shat't and the ,cr-ankdriving gear 220 .is, such that;

the gear QQQ-will make-admit revolution which will: complete 'the throw of the-erossthe pas- 5 predetermi nedl.

head 213 in one direction durin sage of any; desiredv or number of bags through. the machine. For example, if'itj-is-de sired to stack fifty- Ibags in each pile, the ratioof "the gearing he tween-the crossshead driving gear, 220 and the lower folder roll shaft would be suchthat the gear QQOw-ould complete ahalf revolution during. fifty. revolutionsofthe lower interval, the belts 171 otthe bag delivery of the bags, will be doubled as they enter folder roll shaft, the latter making one rev-r olution for, each bag which passes it. In:

-'order'to enable timing of thestrokes of the} ,bag receiver so that-1t will reverse its posi-- tion during theintcrval.between theqsuc cessive deliveries of two bags, the crank 219 which carries the pin 2L8 may be secured adjustably to the geiirZQO by bolts'228 which extend through circumferential slots 229 formed in the crankmember, thus enabling thelatter to be rotated to some extent relatively tothe gear 210, and in order to pro- 'vide an ample interval between; the suceessive deliveries of the bags tog ithe receiver for the reversal of the latter, (luring sucl chute are driven at such speed that thesp'eed' the chute from themachine.- In orders-to 'properly setor adjust the range of movement of the cross-head, the pin 218 may he adjustably secured ina radial slot 218 in the crank member,

\Vhile the cross-head 213 more or less regularly during the passage of the bags through the machine, the bag re-V ceiver will occupy a stationary position with the shaft 223- by will advance e s r th id 'liy' ry' ll et intilt bag YreCeii-er will! shift its" position quickly to "remove "the tilled cornp'artinentf and to' bring the other colnplartn'ient into position to. receire. ."the bags Auto matie means is provided by. the present invention for eiiectingsuelroperation of theba g receiver. Such -mechanism comprisesapair of reversely" ar- Iranged 'triggers,230 and 230* which are arranged to engage, I respectively, abutments 23; an'd1f23l} on..' the carriage orbag receiver. Asshown inliigures' 3 and 1, th'e'trigg'er 230 will engage the abutment 231 when the bag receiver occupies ,its right-hand position, the compartment 4200 being then "in position ito receiye the bags from the delivery chute land the receiver'is held infthi's position by the 'triggeix230. When the bag receiver is shifted to e letter into its. left-hand position v where the coinpartnwut 900 is beneath. thedelix'ery; chute to receire'the bags therefronnlthe trigger 2303 will engage the fa ut ne nij23li aiid the hagreeei'vei Livi his bell eldfin its leit-hand position. jlhtil t riggerslfare.pivotally mounted at 5232 and 232f on collars or brackets A33 and 233 which may be; clamped orotherwise suitably se c.ur,ed 'at appropriate points along th( length 'ofa .rod 234: the latter extending ir parallelism with the carriage. supporting rods/2210 and being secured and supporter at, its ..-ends in-tlie frame members 211 .Springs and 235 act to yieldingly fore the triggers into. engaging relation witl .thewabutn' ents231.and 231, respectively v these, springs acting on the tails 236and 236 the respective triggers. The rod-23 i sup portsla ;pair oftrigger trimming collar; 23 7 ;-and 237 and between these. collars i: z mountedha tube or sleeve 238 which i, mounted looselyon and is movable freel longitudinally of the rod 234, this tube 0 sleeve rhaving alimited amount of lost me tion or play between the collars 2-37 am 237 The tube 238 has abutmentcollars 23 and 239? which are clamped or otherwis secured at proper points of adjustment alon; the tube or near the ends thereof. Th cross-head'filti hasa hub 2-10 ;whieh 'n ove 541008013 and longitudinally over-the tube 0 sleeve 238between the abutment eollars 23 and 239. i o

; The operation of the delivery lnechanisi asdescribedis as follows: Referring to'Fig uresS, 3 and 4, it will be noted that th left-handbag compartment 200 is below th bag delivery chute, the carriage occupyin its right hand position while the .crankpi 218 hassubsta'ntially reached its fleft-han position, the cross-he'ad 2l 3,being in 001 sequence shifted-into its left -hand positio riage, however, is retained in its right-hand position by the trigger 230 which engages its abutment 231. The parts occupy this position when a pilev of bags comprising.

nearly the full number of bags to be received by the. compartment have been delivered thereto, but as the delivery of the bags continues, the crank pin '218 will continue its movement toward the left, unti'i it reaches the dead center position, and during this final portion of the movement of the crank pin toward the left, the hub 240 of the crosshead 213 picks up the collar 23?.) on the sleeve 238 and shifts the tube 238 toward the left, forcing the collar 237 against the tail 236 ofthetrigger and thereby rctracting the latter from the abutment 231. The carriage is thereby released and it will make a rapid stroke toward the left under the influence of the compressedsprings 214, and

V when this left-hand stroke of the carriage has been completed, the other trigger 230 will .latch" and, engage the abutment 231 thereby-holding the carriage in its left-hand position.

Thisshift of-the carriage brings the other bag compartment 200 into position beneath the delivery chute, so that as the bags continue their discharge from the machine they are stacked in this compartment The other filled compartment 200 which is shifted out of position beneath the delivery chute, will be in a position where the bags may be con veniently removed therefrom, and this compartment. will'be ready to receive another stack of bags after the carriage has shifted back to. its-former position. As the bags are delivered into the compartment 200% the cross-head 213. will be gradually shifted from the collar 239 to the collar 239 due to the right-hand stroke of the crank pin 218 during the next half revolution of the driving gear 220 and when the cross-head reaches the collar 239v, which occurs when the number of bags delivered to the com:

partmentSZOO approaches the predetermined number to be received by it, the collar 239" is picked up by the cross-head and shifted toward the right in I i, 'ure 4, thereby shifting' the tube 238 to the right in this figure, and when the cross-head reaches the limit of its right-hand movement, the collar 237 will have engaged the tail 236' of the trigger" 230 androck the same to release it from the abutment 231. thereby tripping the carriageand permitting it to shift rapidly toward the right under the influence of the springs 215 which 'will then be compressed while the springs 214 are uncompressed.

-- Thebag filled compartment 200 isthereby removed from bag-receiving position and the compartment 200 brought into position to receive and stack bags delivered by the chute.

The reversals in the position of the bag receiver to cause the compartments therein t.o"altcrnat ely receive the bags takes place of bags will [contain a predetern'iined or counted number.

I claim 1. In a'machinc of the class described, a bag delivery chute comprising a frame supporting travelling belts for conveying the.

bags, brackets supported atthe sides and overhanging the upper side of the frame, and guide members mounted on sald overhanging brackets and arranged at the side edges of said belts and overlying the latter for guiding the bags during their travel therewith. v

2. Ina machine of the class described, a bag delivery chute comprising a frame supporting travelling belts for conveying the bags, brackets supported at the sides of the frame and bridging the upper side thereof, guides having portions thereon arranged at the sides of the belts and inturned flanges which overlie the belts, said inturned flanges laterally on the bridging portions of the brackets to accommodate the guides to bags of different widths.

3. In a machine of the class described, bag delivery means comprising a chute through which the bags are delivered, and a bag receiver having a plurality of compartments, the receiver being reciprocable to bring said compartments successively into position to receive bags from the chute.

4. In a machine of the class described, bag delivery means comprising a chute for discharging bags, a reciprocatory bag receiver having a plurality of bag receiving compartments, and means for shifting the receiver in a direction laterally of the chute .to bring another compartment thereof into. bag receiving position each time a predetermined number of bags has been delivered. 5. In a machine of the class described embodying means for advancing bags suc- -cessively therethrough and means for delivering the bags therefrom, a reciprocatory bag receiver having a plurality of bag receiving compartments, means-for storing 'power to shift the bag receiver in either di- 'of the guides being secured'to and adjustable storing means for shifting the receiver, a-

means controlled by the bag advancing means of the machine for operating said power storing means to cause the bag receiver toshift its position to bring another compartment into, bag receiving position each time a predetermined number of bags has been delivered'by the machine.

6.In a machine of the class described,

bag receivingemeans comprising a receiver shift-able to bring different portions thereof int-o bag receiving position, means for storing power to effect shifting movement of the receiver, means for holding the receiver against movement during said storing of -power, and means for releasing the. receiver from said holding means to cause the stored power to shift the receiver.

7. In a machine of the class described, a bag receiver shiftable to bring different portions thereof into bag receiving position, power-storing means for shiftingthe receiver, power-driven means for effecting the storage of power in said power-storing means, means for holding the receiveragainst movement during such storage of power-driven' reciprocatory member opera tive to alternately operate'said power-storing means to store power therein, and trigger means for holding-the receiver against shift-- ing movement during the storage of power in, each of said power-storing means, said trigger means being automatically tripped by said reciprocatory member each time it l1as been reciprocatcd to a predetermined extent.

partments therein to be positioned alternately to receive bags, oppositely-acting springs for reciprocating the receiver in reverse directions, a reciprocatory member operative alternately on said springs to store power therein to-eflect the reciprocations of the receiver. and a pair of triggers for holding the receiver in each of its 'bagreceiving positions, said triggers'being tripped automatically when said reciprocatory member eaches predetermined positions.

10. In a machine of the class described, a reciprocating bag receiver, springs arranged -to act in reverse directions on'the receiver to reciprocate it, triggers operative to hold the receiver in its reciprocated positions, a power-driven crank, and a member reciprocated by said crank; and operative during each stroke thereof tofirst store power in one of said s'pringsand to then trip the respective trigger whereby the receiver will be caused to shift its position.

11. In a machine ofthe' class described, a bag receiver having a--pair of bag-receiving compartments, the receiver comprising'a bottom plate, intermediate:partitions projecting upwardly therefrom. and end plates I projecting upwardly from the bottom plate, the end plates having slotted flanges which lie flatwise againstthe bottom plate at the outer sides of the'end plates to receive screws which clamp position.

In testimony whereof I have hereunto" setmy hand.

TRUE AVERY.

the end plates adjustably in

Images