US1101492A - Bag-feeding mechanism. - Google Patents

Bag-feeding mechanism. Download PDF

Info

Publication number
US1101492A
US1101492A US67735012A US1912677350A US1101492A US 1101492 A US1101492 A US 1101492A US 67735012 A US67735012 A US 67735012A US 1912677350 A US1912677350 A US 1912677350A US 1101492 A US1101492 A US 1101492A
Authority
US
United States
Prior art keywords
bag
bags
runway
plunger
slide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US67735012A
Inventor
George W Gwinn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Automatic Packing & Labeling Co
Original Assignee
Automatic Packing & Labeling Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Automatic Packing & Labeling Co filed Critical Automatic Packing & Labeling Co
Priority to US67735012A priority Critical patent/US1101492A/en
Application granted granted Critical
Publication of US1101492A publication Critical patent/US1101492A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/08Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession
    • B65D83/10Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession for dispensing razor-blades

Definitions

  • My present invention pertains to an improved bag-feeding mechanism, adapted more particularly for use in conjunction with automatic packing machines and the In automatic packing machinery as now commonly constructed and used, it is customary to place the bags upon the bagholders by hand, thus entailing the expense of one or more. attendants, generally unskilled and who, by reason of being unskilful, mutilate or destroy a number of bags and also fail sometimes for one cause or another to properly position a bag upon the holder.
  • the packing machine may be operated at a higher speed thanwhen the bags are hand-placed and, furthermore,
  • the machine may be said, in general terms, to embody the following parts, op-
  • junction with the bags in the runway 1s means for straightening up the bags, that lf is, bringing them to a vertical position, and l only a, fragmentary portlon thereof is 1lluslikewise means for temporarily relieving the forward bags, vadjacent the discharge endr lation of the two structures.
  • FIG. 1 A. structure illustrating one embodiment of the invention is shown in the annexed drawings, wherein: t Figure l is a side elevation, partly in sectlon, the parts bein in that position'v in which a bag just wit drawn from the run-- Way has been grasped by' the bag-carrier, and the bag-Withdrawer elevated; Fig. 2 a top vplanyview, the ba -withdrawer being broken away in part; iig. 3 a vertical longitudmal sectional view, taken on the line 3--3 of Fig. 2, the bags being omitted from the runway, with the bag in the carrier or transferrer shown in section; Fig. 4 a transverse vertical sectional view on the line 4 4 of Fig. 3; Fig.
  • FIG. 5 a perspective view of the bag straightener and pressure relieving mechanism
  • Fig. 6 ⁇ a similar View of the bagremover or withdrawer
  • Fi 7 a horizontal sectional view, taken on t e 4line 7-7 of Fig. 3
  • Fig. 8 a vertical sectional view, on the line 8-8 of Fig. 9, the bag-remover being shown as descending and the bag-carrier in the act of carrying the previously-removed b'a-g to a position where it may be taken by the bag-holder or shape of the packing machine
  • Fig. 12 a diagram or chart of the various cams
  • l Fig. I3 a vertical sectional view on -the line 13-13 of Fig. 14
  • Fig. 14 a horizontal sectional view on a somewhat smaller scale, the parts being in thev same position as in Fig. 13, and the carrier turret lock and the cams for opening and closing the carriers being shown.
  • the ymechanism as a whole is designed to operate in conjunction with a packing machine and will preferably be operated from the same source of power as that which operates the packer, or from a moving part of the packer, but inasmuch as the packer per se forms no part of the present invention ",rated, just suilicient -to bring out the correi 11 a sectional view on the line 11-11 of Fig.
  • 1 denotes a table or other fixed support
  • Figs. 2 and 4 and 2 a shaft extending up above the table and carrying a spider-frame 3, upon which are supported the bag-forms or holders 4.
  • Said shaft is adapted t0 be raised and lowered through suitable mechanism, and to be rotated step by step through gears 5 and 6.
  • a bag magazine or runway mounted upon the vdatform is a bag magazine or runway, comrising a base 9, and two vertically-disposed sides 1() and 1l, cach preferably lined with a planishcd metallic plate, as 12.
  • the runway is open at its rear end, the forward end being partially closed by two verticallydisposed plates or lips13 and 14, forming a restricted mouth, somewhat narrower than the width of the bags; designated by 15.
  • a bracket 16 Extending upwardly and outwardly from the side wall 11 is a bracket 16, to which is secured a horizontally-disposed rail 17, having mounted thereon a slide 18, to the upper'edge of which is pivoted to swing in a vertical direction a push-plate 19, having a handle 20, see Fig. 10.
  • a cord or cable 22 which extends forward up and over a pulley 23, carried by a bracket 24 secured to rail 17, said cord thence passing rearwardly over a pulley 25 and having a Weight 26 secured thereto.
  • the tendency of the weights 26 and 26a is to draw the slides 18 and 18 forward and consequently7 to push the bags toward the discharge end of the runway.
  • the purpose of having two push-plates is to insure a proper feed of the bags, for while one plate is acting the attendant maybe iilling the runway between the forward active plate and the rear plate, and thereafter as the bags become depleted forward of the forward plate, swing said plate upwardly and move it and its slide rearwardly, permitting the other slide to become in effect the forward slide.
  • the bags are withdrawn from the runway one at a time and the means provided for doing this comprises a plunger, See Figs. 4 and 6, having a relatively sharp lower end 27, a fiat rear face 28, and a forward outwardly-incliued face 29.
  • the plunger increases in size upwardly from the lower sharp edge, the enlargement extending forwardly from the rear vertical face.
  • the plunger is secured to an arm 30, which in turn is secured to the upper end of a slide 31, which is movable through a swinging guide 32, pivoted at its upper end to the upper end of a fixed bracket or post 33.
  • the upper edge of the forward face of the bag will preferably be somewhat lower than the opposite side, see Fig. 4, so that the plunger when it is thrown rearwardly preparar n tory to the descent thereof will clear the forward bag face and come into contact with the inner side of the rea-r face, or the bag liner, if a double-walled or lined bag be employed.
  • the plunger owing to its position, and to the forward wedge-shaped face thereof, will always enter the bag and this without damage thereto.
  • a push-plate 49 see Fig. 6, which contacts with such bags and serves.
  • a slide 52 mounted in suitable guideways 50, 51, carried by the underside of the platform 7, see Fig. 10, is a slide 52, said slide being reciprocated through the agency of a link 53, connected to lugs 54 extending down from the rear end of the slide, the opposite end of ⁇ the link being connected to the upper'end of a rocker-arm 55, fulcrumed upon shaft 37, the lower end of the rocker arm carrying a bowl 56, which works in a cam groove 57.
  • the forward end of the slide is provided with a centrally-disposed slot 5,8, see Fig. 7 and also with two laterally projecting wlngs or lugs 59 and 60.
  • Pivoted to the under face of lug 59 (see Fig. 5) is alever 61 of the first order, while pivoted to the wing or lug 60 is a second lever 62 of the same order.
  • the inner ends of said levers overlap and are pin-jointed, one being slotted so that they may swing past a line passing through their pivotal points; in other words, they form a toggle which may be thrown to one or the other side of the center line.
  • a vertically-disposed rod 64 Extending through and pinned to a hub 63 formed on the outer free end of lever 61 is a vertically-disposed rod 64, and pinned to the rod is a frame or casting 65, the vertically-disposed member of which carries two beveledor tapering fingers 66 and 67.
  • a second frame 68 is pivotally supported on rod 64, said frame being vprovided with a single beveled linger 69 at its upper end.
  • a spring 70 tends to rotate frame 68 and consequently to throw finger 69 inwardly, such inward movement being limited by a stop lug 71, carried by a hub 72 pinned to rod 64.
  • Similar parts are carried by or supported upon the outer endv of lever 62, the parts being similarly lettered with the addition of the exponent a.
  • the lower ends of the rods 64 and 64a are connected by a coiled spring 73 which acts to hold the levers 61 and 62 in one or the other of the two positions to which they may be moved; or, in other words, to hold the 'toggle formed by said levers to one or the other side of the center line of the toggle.
  • the shifting of the levers is brought about by the movement of the slide 52, carrying the levers into contact first with one and then with the other of two pins 74 and 7 5, best shown in Figs. 3 and 13, which extend down from the under face of platform 7.
  • Cam 57 is so formed and timed that after a bag has been withdrawn by the plunger the fingers will stand in the position shown in Fig. 14, that is, entirely withdrawn, at which time slide 52 is moving rearwardly and the toggle has come into contact with pin 75, andA has been straightened and is about to be thrown forward by spring 73.
  • frames 65 and 65a are swung outwardly so as to withdraw the fingers 66 and 67 and 66 and 67a from between the bags,I and when the parts ⁇ reach the positions shown in Fig. 14 the push-plate will act to force the bags in the runway forwardly againstthe/lips 13 and 14.
  • the toggle Upon a further rearward movement of the slide the toggle will be broken by pin 7 5, and the outer ends -of levers 61 and 62 will swing inwardly,
  • the side walls of the runway are formed with suitable vopenings 76 and 77 through which the lower fingers 66 and 66a may pass.
  • the cam 57 is so timed as to carry the slide 52 and consequently fingers 66, 66a, 67 -and 67a rearwardly to a slight extent, while still in their inward position.
  • lli() takes the pressure of push-plates 19 and 19* gers withdrawn and the push-plates again ⁇ allowed to act to advance the bags along the runway. The same cycle of operations is repeated.
  • a bracket 78 Se cured to and extending outwardly from platform 7 is a bracket 78, in the outer end of which is mounted a vertically-disposed shaft 79, said shaft having splined thereto, below the bracket a sprocket-wheel 80 and a locking plate 81, provided with peripheral notches 82.
  • the upper part of the shaft has splined to it a turret or frame having four radially-disposed arms 83, the outer end of each arm carrying two horizontally-arranged, su'bstantially I shaped frames 84 and 85.
  • each end of each arm of the frame is provided with a hub or boss 86, and parallel, vertically-disposed rods or shafts87 and 88 are mounted in the bosses.
  • a lever 89 To the lower end of shaft 87 is secured a lever 89, and also a notched arm or jaw 90.
  • a lever 91 is secured to the lower end of shaft 88, the ends of said lever and lever 89 overlapping and being connected to each other by a machine screw 92, which passes upwardly through an elongated slot in lever 89 and is screwed into lever 91.
  • a roller 93 is carried at the lower end of the screw.
  • Shaft 88 adjacent to its lower end, has also secured to it a notched arm or jaw 94.
  • Similar arms or jaws 95 and 96 are, respectively, connected to the upper ends of shafts 87 and 88, and each shaft has wound about the same a coiled spring 97, said spring being secured at one end to the shaft and at its opposite end to the frame. Said springs tend to rotate the shafts in such direction as to close the jaws, or in other words to cause them to approach each other.
  • a stop arm 98 formed as an extension of the jaw 95, Fig. 2, coacts with a screw 99, mounted in a lug 100, extending upwardly from arm 83, and acts to limit the approach of the jaws.
  • Shaft 79,-and consequently arms 83 are rotated by means of a sprocket-chain 101, which passes about sprocket 80 and a sprocket 102, Fig. 4, vsecured to shaft 2, and inasmuch as shaft 2 is'given a stepby-step rotation, shaft 79 and the parts carried thereby are likewise given such motion.
  • Sleeved for oscillation upon the hub of the frame which carries the arms 83 is a casting comprising a sleeve 102, Figs. 3 and 14, and three arms 103, 104 and 105.
  • Arms 103 and 104 are separated a distance slightly greater than 90, and the former is provided with an adjustable cam or striker 106, while the latter is provided with a similar member 107.
  • Said members stand in the path of the rollers 93 and serve to open the jaws when the parts come into line, as at the right in Fig. 14, and at the top, as in Figs. 2 and 7.
  • These parts may be termed the jaw-actuat ing or openin mechanism, and to operate the same, that 1s, to oscillate it so as to cause it to open one set of jaws and'then another set, there is secured to the outer end of arm 105 a link or draw-rod 108, the opposite end of which is connected to the upper end of an arm 109, secured to shaft 37.
  • Motion isimparted to said shaft through an arm or lever 110, secured at one end to the shaft, the opposite end carrying a bowl which works in a cam groove 111.
  • the bag-grasping jaws shall-come to rest one set at a time in line with the discharge end of the bag runway and the plunger so as to be in position to grasp the bag which is on the plunger, and to insure the retention of the jaws in such position I provide a locking pawl- 112, fulcrumed upon bracket 78 and actuated by a bar or rod 113, pivoted thereto and to the lower member of rocker arm 55.
  • the parts are so timed that as one set of bag-grasping jaws 90, 94, 95 and 96 comes into juxtaposition with the plunger, the pawl will enter one of the notches 82 of the locking plate 81. At such time cam 107 will be brought to the position shown in F ig.
  • the bag is thus placed upon the holder or bag-form and being released from the jaws tends to close upon said holder, or, if preferred, the holder may be expanded as is usual in machinery of this class.
  • the bag-holder then moves upwardly and the jaws are then free to be turned another step' forwardly.
  • a runway for the bags a pair of pivoted push-plates extending into the runway and urging the bags forwardly therein toward the discharge end thereof; means for withdrawing the bags one by one. from the runway; swinging fingers adapted to be moved into and out of the runway in rear of the .bag to be removed; means for actuating said fingers; and means for drawing the fingers rearwardly in line with the runway while they are in engagement with the bags.
  • lfingers arranged upon opposite sides of the runway adjacent the discharge end; means for imparting an oscillating movement to said fingers to throw them into and out of the runway; and means for drawing said fingers rearwardly while they stand in the runway.
  • a runway for the bags for the bags; means for urging the bags forwardly in the runway; means for removing the bags one by one; a slide located below the runway; means for reciprocating said slide; a rod at each side of the runway: a frame secured to each rod;'fingers extending inwardlyfro-m -each frame toward the runway; a toggle connection between the lower ends of the rods, said toggle being carried by the slide; a spring acting to hold the toggle to one or the other side of its center line; fixed pins cooperating with the toggle to throw the same as the slide is reciprocated; a second frame pivoted on each rod; a finger extending inl wardly from the upper portion thereof; a spring for each frame tending to draw the saine inwardly toward the runway; and a stop lug secured to each rod, acting to swing the adjacent pivoted frame outwardly.
  • a runway for the bags a plunger having a downward movement at the month of the runway and adapted to enter and remove the outermost bag; and means, positively movable toward and from the runway, for pushing the bags immediately in rear of the plunger downwardly into the runway to properly position the same.
  • a runway for the bags for the bags; a plunger movable downwardly in line with the outermost bag in the runway; means for moving the plunger outwardly from the runway with a bag thereon; and a bag-transferring mechanism, comprising a plurality of bag-grasping devices adapted t be successively brought into operative relation with the bagsn the plunger.
  • a runway for the bags for the bags; a plunger adapted to remove the bags one at a time from the runway; means for moving the plunger downwardly into the outermost' bag and then outwardly away from the runway; a bag-transferring mechanism, comprising a rotatable member, and a plurality of bag-grasping devices carried by said member, each grasping device compris- 'ing a plurality of normally-closed jaws;
  • arunway for the bags adapted to remove the bags one at a time from the runway; means for moving the plunger downwardlyI into the outermost bag ,and then outwardly away from the runway; a bag-transferring mechanlsm, comprising a rotatable member, and a plurality of grasping devices carried thereby, each device comprising oppositely-disposed swinging jaws', and means for normally moving the jaws toward each other; means for moving said mechanism step by step; and a pair of cams to successively open the jaws of two of said grasping devices, whereby the device which comes into operative relation with the bag-transferring means will be first opened, and then closed, and the device which has already grasped a bag will likewise be opened.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)

Description

G. W. GWINN.
BAG FEEDING MBCHANISM.
APPLIGATION FILED Emma, 1912.
LWAQ Patented June 23, 191.4u
9 SHEETS-SHEET 1.
g2g. l,
G. W. GWINN.
BAG FBEDING MEGHANISM.
APPLICATION FILED 121313.13, 1912.
LLQ@ Patented June 23, 1914.
9 SEEETSSHBET 2.
G. W. GWINN.
BAG FEEDING MEGHANISM.
APPLICATION IILILD 213.13. 1912.
Patented June 23, 1914 9 sHBETssHEBT a.
SI WJTNESES L @gw IVI/EIVTOR G. W. GWI-NN.
BAG FBEDING MEGHANISM.
APPLICATION FILED FEB.13. 1912.
Patenteaune 2s, 1914.
9 SHEETS-SHEET 4.
@www
WHWESSES few l G. W. GWINN. BAG PBEDING MEGHANISM.
APPLICATION FILED IEB.13, 1912.
' Patented June 23, 191% :mmpwo l 9 SHEETS-SHEET 5. l
WTNESSES G. W. GWINN. BAG FEEDING MEGHANISM. APPLICATION HLBD 1123.13, 1912.
Patente-ad June 23, 1914.
AQQ@
9 SHEETS-SHEET 6.
G. W. GW'INN. BAG PEEDING MEGHANI'SM.
APPLICATION FILED FEBJS, 1912.
Patented June 23, 1914.
9 SHEETS-SHEET 7.
v, NVENTOR'.
W/IWESSES wwf/MW- G. W. GWINN.
BAG FBEDING MEGHANISM.
APPLICATION FILED Emma. 1912.
Patented June 23, 1914.
9 SHEETS-SHEET 8.
i ana Form I 5 S m N H WI G. W. GVVINN.
BAG FEEDING MEGHANISM.
APPLICATION FILED FBB.13.1912,
Patented June 23, 1914.
LMMAQ,
9 SHEETSSHBET 9.
wWil Uli .l/rV/L nllllllihs M like.
UNITED scrapes PATENT Ormea.
GEORGE W. GWINN, OF NEW YORK, N. Y., ASSIGNOB T0 AUTOI'ATIC PACKING LABELING COIPANY, 0F DURHAM, NORTH CIOLINA,
NORTH CAROLINA.
A MEDIATION OF BAG-FEEDING MECHANISM.
Specification of Letters Patent.
Patented June 23,1914.
Application llled February 13, 191B. Serial 11o. 677,350.
citizen of the United States, residing at 1 New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Bag-Feeding Mechanisms, of which the following is a specification.
My present invention pertains to an improved bag-feeding mechanism, adapted more particularly for use in conjunction with automatic packing machines and the In automatic packing machinery as now commonly constructed and used, it is customary to place the bags upon the bagholders by hand, thus entailing the expense of one or more. attendants, generally unskilled and who, by reason of being unskilful, mutilate or destroy a number of bags and also fail sometimes for one cause or another to properly position a bag upon the holder.
It is an object of the present invention to produce a mechanism which will automatically withdraw the bags, one at a time, 'from a bag-runway or stacker, open up such bag and present the same to the bag-form or holder of the packing machine. By thus handling the bags, the packing machine may be operated at a higher speed thanwhen the bags are hand-placed and, furthermore,
there is greater certainty in operation, and with (usually) less expense.
The machine may be said, in general terms, to embody the following parts, op-
erating to bring about the desired result:
turn grasps it and while still maintaining it open, carries it to the. bag-holder or form y llVorking in cony of the packing machine. junction with the bags in the runway 1s means for straightening up the bags, that lf is, bringing them to a vertical position, and l only a, fragmentary portlon thereof is 1lluslikewise means for temporarily relieving the forward bags, vadjacent the discharge endr lation of the two structures.
from pressure, so that the outermost bag may be readily withdrawn without being subjected to undue strain.-
A. structure illustrating one embodiment of the invention is shown in the annexed drawings, wherein: t Figure l is a side elevation, partly in sectlon, the parts bein in that position'v in which a bag just wit drawn from the run-- Way has been grasped by' the bag-carrier, and the bag-Withdrawer elevated; Fig. 2 a top vplanyview, the ba -withdrawer being broken away in part; iig. 3 a vertical longitudmal sectional view, taken on the line 3--3 of Fig. 2, the bags being omitted from the runway, with the bag in the carrier or transferrer shown in section; Fig. 4 a transverse vertical sectional view on the line 4 4 of Fig. 3; Fig. 5 a perspective view of the bag straightener and pressure relieving mechanism; Fig. 6` a similar View of the bagremover or withdrawer; Fi 7 a horizontal sectional view, taken on t e 4line 7-7 of Fig. 3; Fig. 8 a vertical sectional view, on the line 8-8 of Fig. 9, the bag-remover being shown as descending and the bag-carrier in the act of carrying the previously-removed b'a-g to a position where it may be taken by the bag-holder or shape of the packing machine; Fig. 9 a horizontal sectional view on the line 9 9 of Fig. 8, the
parts being in the same relative position as 10; Fig. 12 a diagram or chart of the various cams;l Fig. I3 a vertical sectional view on -the line 13-13 of Fig. 14; and Fig. 14 a horizontal sectional view on a somewhat smaller scale, the parts being in thev same position as in Fig. 13, and the carrier turret lock and the cams for opening and closing the carriers being shown.
The ymechanism as a whole is designed to operate in conjunction with a packing machine and will preferably be operated from the same source of power as that which operates the packer, or from a moving part of the packer, but inasmuch as the packer per se forms no part of the present invention ",rated, just suilicient -to bring out the correi 11 a sectional view on the line 11-11 of Fig.
In the drawings, 1 denotes a table or other fixed support, Figs. 2 and 4, and 2 a shaft extending up above the table and carrying a spider-frame 3, upon which are supported the bag-forms or holders 4. Said shaft is adapted t0 be raised and lowered through suitable mechanism, and to be rotated step by step through gears 5 and 6. These parts belong to the packing machine and no further description or showing seems essential.
Secured to one edge of the table is a horizontal platform 7, best shown in Fig. 10, the connection being effected through a bracket S bolted to the table 1. Mounted upon the vdatform is a bag magazine or runway, comrising a base 9, and two vertically-disposed sides 1() and 1l, cach preferably lined with a planishcd metallic plate, as 12. The runway is open at its rear end, the forward end being partially closed by two verticallydisposed plates or lips13 and 14, forming a restricted mouth, somewhat narrower than the width of the bags; designated by 15.
To press the bags forward in the runway toward the mouth, two presser-plates are employed, the two being alike in construction and operation; consequently, a description of one will Suiiice, the corresponding parts being similarly lettered with the addition of the exponent a.
Extending upwardly and outwardly from the side wall 11 is a bracket 16, to which is secured a horizontally-disposed rail 17, having mounted thereon a slide 18, to the upper'edge of which is pivoted to swing in a vertical direction a push-plate 19, having a handle 20, see Fig. 10. To a lug 21, extending out from tlle slide there is secured a cord or cable 22, which extends forward up and over a pulley 23, carried by a bracket 24 secured to rail 17, said cord thence passing rearwardly over a pulley 25 and having a Weight 26 secured thereto. The tendency of the weights 26 and 26a is to draw the slides 18 and 18 forward and consequently7 to push the bags toward the discharge end of the runway. The purpose of having two push-plates is to insure a proper feed of the bags, for while one plate is acting the attendant maybe iilling the runway between the forward active plate and the rear plate, and thereafter as the bags become depleted forward of the forward plate, swing said plate upwardly and move it and its slide rearwardly, permitting the other slide to become in effect the forward slide. By arranging the slides upon opposite sides of the runway either one may be. withdrawn from operative relation with the bags and moved rearwardlv independently of the other.
The bags are withdrawn from the runway one at a time and the means provided for doing this comprises a plunger, See Figs. 4 and 6, having a relatively sharp lower end 27, a fiat rear face 28, and a forward outwardly-incliued face 29. In other-words, the plunger increases in size upwardly from the lower sharp edge, the enlargement extending forwardly from the rear vertical face. The plunger is secured to an arm 30, which in turn is secured to the upper end of a slide 31, which is movable through a swinging guide 32, pivoted at its upper end to the upper end of a fixed bracket or post 33. An oscillating movement is imparted to the guide 32 through an arm 34 fixed to the lower end ther of to which in turn there is pivotally connected a link 0r rod 35, see Figs. 7 and 13, the rear end of the rod being plvotally connected to the upper end of a rocker arm 36. Said rocker arm is fulcrumed upon a shaft 37 carried by depending arms 38 and 39, see Fig. 10. The lower end of the rocker arm 36 carries a bowl 40 which works in a cam groove 41, formed in one face of a Cam member 42 splined to and rotatable with a driven shaft 43.
To effect a, reciprocation of the slide 31, through the s'lideway, there is secured to the lower end of the slide a link 44 which in turn is pivoted to the forward end of a relatively long arm 45 which extends forward from a collar or sleeve 46, fulcrumed on shaft 37. An arm 47 extends downwardly from collar 46, carrying at its lower end a bowl 47 adapted to work in a cam groove 48. This mechanism imparts to the bag-withdrawing plunger a compound vertical. and swinging movement, the lower end of the plunger swinging rearward when it is fully elevated, see Figs. 1 and 3, until it comes to a vertical position, Fig. 8, when it descends and passes downwardly into the bag, Fig. 13.
` Owing to the shape of the cam 41 during this downwardmovement no swinging motion of the guide 32, and consequently of A the plunger, takes place; so, too, when the v plunger reaches its limit of downward movement cam 48 becomes for the time being inlactive and at the same time, through the laction of cam 41,-a. forward movement of lthe plunger ta-kes place, and said plunger being in a bag draws the same outwardly i from the runway (Fig. 13) between the lips 13 and 14. The plunger carries the bag forward to a bag-carrier or transfer mechanism, where it is grasped and while so held 'the plunger is withdrawn therefrom, mov- L ing upwardly from the dotted-line position .shown in Fig. 13 to the position shown in Figs. 1 and 4.
The upper edge of the forward face of the bag will preferably be somewhat lower than the opposite side, see Fig. 4, so that the plunger when it is thrown rearwardly preparar n tory to the descent thereof will clear the forward bag face and come into contact with the inner side of the rea-r face, or the bag liner, if a double-walled or lined bag be employed. Thus the plunger, owing to its position, and to the forward wedge-shaped face thereof, will always enter the bag and this without damage thereto. To push downwardly the bag or bags standing immediately behind the one beingl withdrawn, I secure to the rear face of t e plunger a push-plate 49, see Fig. 6, which contacts with such bags and serves. to push the same downwardly so that they will stand on the bottom of the runway and be in position to properly function with the plunger as it acts to successively withdraw the same. To relieve the bags momentarily from ressure as the outermost one is being wit drawn from the runway, and to also straighten up the bags or cause. them to stand vertically in the runway as they approach the lunger, so that the latter may properly nction with the same, suitable` automatic mechanism is employed.
Mounted in suitable guideways 50, 51, carried by the underside of the platform 7, see Fig. 10, is a slide 52, said slide being reciprocated through the agency of a link 53, connected to lugs 54 extending down from the rear end of the slide, the opposite end of` the link being connected to the upper'end of a rocker-arm 55, fulcrumed upon shaft 37, the lower end of the rocker arm carrying a bowl 56, which works in a cam groove 57.
The forward end of the slide is provided with a centrally-disposed slot 5,8, see Fig. 7 and also with two laterally projecting wlngs or lugs 59 and 60. Pivoted to the under face of lug 59 (see Fig. 5) is alever 61 of the first order, while pivoted to the wing or lug 60 is a second lever 62 of the same order. The inner ends of said levers overlap and are pin-jointed, one being slotted so that they may swing past a line passing through their pivotal points; in other words, they form a toggle which may be thrown to one or the other side of the center line. Extending through and pinned to a hub 63 formed on the outer free end of lever 61 is a vertically-disposed rod 64, and pinned to the rod is a frame or casting 65, the vertically-disposed member of which carries two beveledor tapering fingers 66 and 67. A second frame 68 is pivotally supported on rod 64, said frame being vprovided with a single beveled linger 69 at its upper end. A spring 70 tends to rotate frame 68 and consequently to throw finger 69 inwardly, such inward movement being limited by a stop lug 71, carried by a hub 72 pinned to rod 64. vSimilar parts are carried by or supported upon the outer endv of lever 62, the parts being similarly lettered with the addition of the exponent a.
The lower ends of the rods 64 and 64a are connected by a coiled spring 73 which acts to hold the levers 61 and 62 in one or the other of the two positions to which they may be moved; or, in other words, to hold the 'toggle formed by said levers to one or the other side of the center line of the toggle. The shifting of the levers is brought about by the movement of the slide 52, carrying the levers into contact first with one and then with the other of two pins 74 and 7 5, best shown in Figs. 3 and 13, which extend down from the under face of platform 7.
Cam 57 is so formed and timed that after a bag has been withdrawn by the plunger the fingers will stand in the position shown in Fig. 14, that is, entirely withdrawn, at which time slide 52 is moving rearwardly and the toggle has come into contact with pin 75, andA has been straightened and is about to be thrown forward by spring 73. As the toggle is moving to its center line or straightened position, frames 65 and 65a are swung outwardly so as to withdraw the fingers 66 and 67 and 66 and 67a from between the bags,I and when the parts `reach the positions shown in Fig. 14 the push-plate will act to force the bags in the runway forwardly againstthe/ lips 13 and 14. Upon a further rearward movement of the slide the toggle will be broken by pin 7 5, and the outer ends -of levers 61 and 62 will swing inwardly,
thereby carrying fingers 69 and 69a between the bags at the upper portion or end thereof, see Fig. 2. When the movement of slide 52 is reversed, said fingers, being carried forward to a slight extent while still between the bags, have a tendency to push the upper portions of the bags forward, or to straighten them up so that the mouth of the outermost bag will ,be directly against the lips 13 and 14, beneath the plunger. Inasmuch as these fingers are carried by the spring-urged frames there is no tendency to tear the bags, as the slide moves forward, the fingers swinging outwardly if undue pressure should be exerted. The fact that the lower ends or bottoms of the bags are formed with folded-over portions, and conse uently present a slightly greater thickness t an at the top, makes it desirable to employ the mechanism just set forth. Upon a further forward movement of slide 52, the toggle comes into contact with pin 74, is again broken and the fingers 66 and 67 and 66a and 67 a are thrown in between the bags as indicated in Fig. 9.
The side walls of the runway are formed with suitable vopenings 76 and 77 through which the lower fingers 66 and 66a may pass. At such time the plunger is beginning to descend, and in order to relieve the bag which is to be withdrawn from undue pressure against lips 13 and 14 and possible injury, the cam 57 is so timed as to carry the slide 52 and consequently fingers 66, 66a, 67 -and 67a rearwardly to a slight extent, while still in their inward position. Such movement, as will be readily appreciated,
lli() takes the pressure of push- plates 19 and 19* gers withdrawn and the push-plates again` allowed to act to advance the bags along the runway. The same cycle of operations is repeated.
rihe devices or mechanism for transferring the bag from the plunger to the packing machine will now be described. Se cured to and extending outwardly from platform 7 is a bracket 78, in the outer end of which is mounted a vertically-disposed shaft 79, said shaft having splined thereto, below the bracket a sprocket-wheel 80 and a locking plate 81, provided with peripheral notches 82. The upper part of the shaft has splined to it a turret or frame having four radially-disposed arms 83, the outer end of each arm carrying two horizontally-arranged, su'bstantially I shaped frames 84 and 85. Each end of each arm of the frame is provided with a hub or boss 86, and parallel, vertically-disposed rods or shafts87 and 88 are mounted in the bosses. To the lower end of shaft 87 is secured a lever 89, and also a notched arm or jaw 90. A lever 91 is secured to the lower end of shaft 88, the ends of said lever and lever 89 overlapping and being connected to each other by a machine screw 92, which passes upwardly through an elongated slot in lever 89 and is screwed into lever 91. A roller 93 is carried at the lower end of the screw. Shaft 88, adjacent to its lower end, has also secured to it a notched arm or jaw 94. Similar arms or jaws 95 and 96 are, respectively, connected to the upper ends of shafts 87 and 88, and each shaft has wound about the same a coiled spring 97, said spring being secured at one end to the shaft and at its opposite end to the frame. Said springs tend to rotate the shafts in such direction as to close the jaws, or in other words to cause them to approach each other. A stop arm 98, formed as an extension of the jaw 95, Fig. 2, coacts with a screw 99, mounted in a lug 100, extending upwardly from arm 83, and acts to limit the approach of the jaws.
Shaft 79,-and consequently arms 83, are rotated by means of a sprocket-chain 101, which passes about sprocket 80 and a sprocket 102, Fig. 4, vsecured to shaft 2, and inasmuch as shaft 2 is'given a stepby-step rotation, shaft 79 and the parts carried thereby are likewise given such motion. Sleeved for oscillation upon the hub of the frame which carries the arms 83 is a casting comprising a sleeve 102, Figs. 3 and 14, and three arms 103, 104 and 105. Arms 103 and 104 are separated a distance slightly greater than 90, and the former is provided with an adjustable cam or striker 106, while the latter is provided with a similar member 107. Said members stand in the path of the rollers 93 and serve to open the jaws when the parts come into line, as at the right in Fig. 14, and at the top, as in Figs. 2 and 7. These parts may be termed the jaw-actuat ing or openin mechanism, and to operate the same, that 1s, to oscillate it so as to cause it to open one set of jaws and'then another set, there is secured to the outer end of arm 105 a link or draw-rod 108, the opposite end of which is connected to the upper end of an arm 109, secured to shaft 37. Motion isimparted to said shaft through an arm or lever 110, secured at one end to the shaft, the opposite end carrying a bowl which works in a cam groove 111.
It is designed that the bag-grasping jaws shall-come to rest one set at a time in line with the discharge end of the bag runway and the plunger so as to be in position to grasp the bag which is on the plunger, and to insure the retention of the jaws in such position I provide a locking pawl- 112, fulcrumed upon bracket 78 and actuated by a bar or rod 113, pivoted thereto and to the lower member of rocker arm 55. The parts are so timed that as one set of bag-grasping jaws 90, 94, 95 and 96 comes into juxtaposition with the plunger, the pawl will enter one of the notches 82 of the locking plate 81. At such time cam 107 will be brought to the position shown in F ig. 14 and the jaws opened. When a bag has been withdrawn by the plunger and lswung` forwardly, the cam is moved away in a clockwise direction. thereby permitting the jaws to close under the action of springs 97, and grasp the then distended bag by its opposite edges. The plunger then ascends from the bag and when fully elevated the pawl is withdrawn from the locking plate and the bag, still held in its distended position, is carried around to a point beneath the vbag form or holder 4. Said holder then descends and when within the bag the jaws are opened and moved away from the bag by the cam 106, which is then brought to vsuch position as to open the jaws. The bag is thus placed upon the holder or bag-form and being released from the jaws tends to close upon said holder, or, if preferred, the holder may be expanded as is usual in machinery of this class. The bag-holder then moves upwardly and the jaws are then free to be turned another step' forwardly.
From the foregoing it is thought that the operation of the machine is sufficiently clear, it beingunderstood, however, in so far as the generic invention is concerned, that the structure may be modified in many of its parts and details, and that the broader claims are to be read in such light. For
thecombination of a runway for the bags;
means for withdrawing the same therefrom one at a `time; means for relieving the bag4 being withdrawn from the ressure of the following bags; and means independent of said relievi 0' means for throwing the openv ends of the b gs forwardly toward the front end of the runway.- l
2. In a machine of the character specified',
the combination of a runway for the bags;
means urging the bags forwardly in the run-l.
way toward the discharge end thereof; means for withdrawing the bags one by one; means acting as a bag is being withdrawn to move the other bags rearwardlyl in the runway; and means for throwing the open endsof the bags forwardly toward the discharge end of the runway.
the combination of a runway for the bags; means for advancing the same along the runway; means for withdrawin the same therefrom one at a time; means or relieving the bags being withdrawn from the pressure of the following bags; and means, independent of the advancing means, for throwing the open ends of the bags forwardly toward the' front end of the runway.
4. In a machine of the character specified, the combination of a runway for the bags; a pair of pivoted push-plates extending into the runway and urging the bags forwardly therein toward the discharge end thereof; means for withdrawing the bags one by one. from the runway; swinging fingers adapted to be moved into and out of the runway in rear of the .bag to be removed; means for actuating said fingers; and means for drawing the fingers rearwardly in line with the runway while they are in engagement with the bags.
` 5. In a machine of the character specified, the combination of a runway for the bags; means urging the bags forwardly inthe runway toward the discharge end thereof; means for removing the bags one by one;
lfingers arranged upon opposite sides of the runway adjacent the discharge end; means for imparting an oscillating movement to said fingers to throw them into and out of the runway; and means for drawing said fingers rearwardly while they stand in the runway.
3. In a machine of the character specified,l
6. In a machine of the character specified,
the combination of a runway for thebags.;
means urging the bags forwardly therein; means for removing the bags one -by one;
'fingers arranged upon opposite sides of the runway adjacent the discharge end thereof;
means for oscillating the fingers to move the i saine into and out of the runway; means for drawing the fingers rearwardly While they stand in 'the runway in contact with the bags; and other fingers adapted to enter the runway as the first-named fingers are withdrawn, said other fingers contacting with the upper portions of the bags and'acting to move said upper portions forwardly.
.7. In a machine of the character specified, the combination of a runway for the bags;
means for urging the bags forwardly in the runway; means for removing the bags one by one; a slide located below the runway;
means for reciprocating said slide; a rod at each side of the runway; a frame secured `to each rod; fingers extending inwardly from each frame toward the runway; a toggle connection between the lower ends of the rods, said toggle being carried by the slide; a spring acting to hold the toggle to one or the other side of its center line: and
fixed pins coperating with the toggle t0 throw the same as the slide is reciprocate'd.
8. In a machine of the character specified, the combination of a runway for the bags; means for urging the bags forwardly in the runway; means for removing the bags one by one; a slide located below the runway; means for reciprocating said slide; a rod at each side of the runway: a frame secured to each rod;'fingers extending inwardlyfro-m -each frame toward the runway; a toggle connection between the lower ends of the rods, said toggle being carried by the slide; a spring acting to hold the toggle to one or the other side of its center line; fixed pins cooperating with the toggle to throw the same as the slide is reciprocated; a second frame pivoted on each rod; a finger extending inl wardly from the upper portion thereof; a spring for each frame tending to draw the saine inwardly toward the runway; and a stop lug secured to each rod, acting to swing the adjacent pivoted frame outwardly.
9. In a machine of the character specified, the combination of a runway for the bags; a plunger having a downward movement at the month of the runway and adapted to enter and remove the outermost bag; and means, positively movable toward and from the runway, for pushing the bags immediately in rear of the plunger downwardly into the runway to properly position the same.
10. In a machine of the character specified, the combination of a runway for the bags, means acting to push the bags for- .wardly therein means for removing the bags one at a time from the runway; means for temporarily relieving the bags at the forward endof the runway from pressure; and means acting while the pressure is thus relieved for pushing such bags downwardly into their proper position in the runway.
11'. In a machine of the character specified, the combination of a runway for the bags; a plunger adapted to move downwardly into the outermost bag and to remove the same from the runway; and a push-plate carried by the rear face of the plunger, adapted to strike the upper ends of the bags immediately in rear of the plunger when the same is moved downwardly.
12. In a machine of the character specitied, the combination of a runway for the bags; a plunger movable downwardly in line with the outermost bag in the runway; means for moving the plunger outwardly from the runway with a bag thereon; and a bag-transferring mechanism, comprising a plurality of bag-grasping devices adapted t be successively brought into operative relation with the bagsn the plunger.
13. In amachine of the character specified, the combination of a runway for the bags; a plunger adapted to remove the bags one at a time from the runway; means for moving the plunger downwardly into the outermost' bag and then outwardly away from the runway; a bag-transferring mechanism, comprising a rotatable member, and a plurality of bag-grasping devices carried by said member, each grasping device compris- 'ing a plurality of normally-closed jaws;
means for rotating said vmechanism ste by step; and means for opening the jaws o one devlce as it comes into position to grasp the bag held by the plunger, and to likewise open the jaws of the device which has vlously grasped a bag and to releasethe bag held thereby. l
14.' In a machine of the character specilied, the combination of arunway for the bags; a plunger adapted to remove the bags one at a time from the runway; means for moving the plunger downwardlyI into the outermost bag ,and then outwardly away from the runway; a bag-transferring mechanlsm, comprising a rotatable member, and a plurality of grasping devices carried thereby, each device comprising oppositely-disposed swinging jaws', and means for normally moving the jaws toward each other; means for moving said mechanism step by step; and a pair of cams to successively open the jaws of two of said grasping devices, whereby the device which comes into operative relation with the bag-transferring means will be first opened, and then closed, and the device which has already grasped a bag will likewise be opened.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
GEORGE W. GWINN. Witnesses:
R. LPA'rrERsoN, M. M. WHEDBEE.
US67735012A 1912-02-13 1912-02-13 Bag-feeding mechanism. Expired - Lifetime US1101492A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US67735012A US1101492A (en) 1912-02-13 1912-02-13 Bag-feeding mechanism.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67735012A US1101492A (en) 1912-02-13 1912-02-13 Bag-feeding mechanism.

Publications (1)

Publication Number Publication Date
US1101492A true US1101492A (en) 1914-06-23

Family

ID=3169688

Family Applications (1)

Application Number Title Priority Date Filing Date
US67735012A Expired - Lifetime US1101492A (en) 1912-02-13 1912-02-13 Bag-feeding mechanism.

Country Status (1)

Country Link
US (1) US1101492A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2486069A (en) * 1942-12-30 1949-10-25 Smith Arthur Ronald Envelope feeding mechanism with slidably and pivotally mounted gripper arms
US2644628A (en) * 1951-12-27 1953-07-07 Wright Machinery Co Banding machine
US2993621A (en) * 1954-12-20 1961-07-25 Fmc Corp Machine for packing eggs

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2486069A (en) * 1942-12-30 1949-10-25 Smith Arthur Ronald Envelope feeding mechanism with slidably and pivotally mounted gripper arms
US2644628A (en) * 1951-12-27 1953-07-07 Wright Machinery Co Banding machine
US2993621A (en) * 1954-12-20 1961-07-25 Fmc Corp Machine for packing eggs

Similar Documents

Publication Publication Date Title
USRE22434E (en) Automatic bag feeder
US1955493A (en) Apparatus for folding wrappers around tablets
US1101492A (en) Bag-feeding mechanism.
US2001009A (en) Envelope stuffing machine
US2880995A (en) Sheet feeding machine
US1001268A (en) Carton-setting-up machine.
US1254666A (en) Envelop-machine.
US554020A (en) dehaitee
US1190898A (en) Mechanism for automatically applying bags to filling-machines.
US997193A (en) Bag-lifter.
US2057698A (en) Coupon feeding machine
US1184030A (en) Machine for making barrels.
US1838167A (en) Feed for cigar enveloping machines
US1555225A (en) Machine for packing articles in boxes
US1024493A (en) Bottle-capping machine.
US815675A (en) Machine for wrapping chocolate tablets or similar articles.
US810005A (en) Package-wrapping machine.
US2676441A (en) Wrapping machine
US1006236A (en) Package-filling machine.
US932769A (en) Machine for folding collar-blanks and the like.
US1543153A (en) Machine for labeling packets, boxes, and the like
US1163863A (en) Machine for manufacture of paper boxes.
US947096A (en) Bagging-machine.
US1012191A (en) Box-labeling machine.
US1068036A (en) Counting-machine.