US596260A - Paper bag machine - Google Patents

Description

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M Wm- M 7 SheetsSheet 2. E. E. GLAUSSEN.

PAPER BAG MACHINE.

Patented Dec. 28, 1897.-

(No Model.) 7 Sheets-Sheet 3. B. E. CLAUSSEN.

I PAPER BAG MACHINE. No; 596,260. Patented Dec. 28,1897.

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E. E. G LAUSSEN. PAPER BAG MACHINE- No. 596,260. Patented Dec. 28,1897.

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(No Model.) 7 Sheets-Sheet 5.

E. E. GLAUSSEN. PAPER BAG MACHINE.

No. 596,260. Patented Dec. 28, 1897.

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E. E. CLAUSSEN. PAPER BAG MACHINE.

No. 596,260. Patented Dec. 28,1897.

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Patented Dec. 28, 1897.

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B. E. OLAUSSEN. PAPER BAG MACHINE.

UNITED STATES ATENT EFicE.

EDWARDYE. CLAUssEN, OF HARTFORD, CONNECTICUT, ASSIGNOR TO ALBERT I-I. WALKER, TRUSTEE, 0E sAME PLACE.

PAPER-BAG MACHlNE.

SPECIFICATION forming part of Letters Patent No. 596,260, dated December 897- Applioation filed January 8, 1897- To all whom it may concern.-

citizen of the United States, residing at I-Ia rt-' ford, in the county of Hartford, in the State of Connecticut, have invented certain new and useful Improvements in Paper-Bag Machines, of which the following is a full, clear, and exact specification.

. This invention relates to machinery for automatically manufacturing square-bottomed paper bags from tucked-paper tubing.

The object of this invention is to provide a cheap, simple, and rapid machine with but few parts to convert a paper taken from a roll into the tucked tube, severing the same into bag-blank lengths, folding the truncated diamond, and finally pasting, cross-folding, and closing the flaps and thus completing the bag. The mechanisms herein shown and described have the folding-bed represented as a supplemental carrier, which is pivoted to a conveyer and adapted to be oscillated when the blank is held to that folding-bed and during the pcriod the conveyer propels the carrier onward. The conveyer may be a continuous rotating cylinder or a reciprocating or oscillating carriage, as both type of machines are used in this class of machines, and I have therefore shown and described this invention in its adaptation to both of those types of machines.

In my present invention I accomplish these objects as follows:

A continuous tube is formed on a former drawn through a set of drawing-rolls and severed into bag-blank lengths and delivered into the bottom-forming mechanisms for forming the characteristic primary transverse folding-line and unfolding the tucks and forming the inside triangular folds. The subsequent operations of pasting, cross-folding, and closing the flaps to complete the bag are quite simple and may be performed in any of the well-known manners.

The bottom-forming mechanisms consist of a tucker-plate, the two folding-blades provided with the pincers and mounted in the stationary frames arranged to operate above the tubular blank in such a manner that as the bottom-forming end of the tube enters and passes along beneath the same the pincers are opened to the proper extent, so that $erial No 618,424. (N0 mode they may enter between the tucks and clasp Beit known that I, EDWARD E. CLAUSSEN, a

the upper tucks to the folding-blades. Ooacting with the tucker-plate is a supplemental carrier arranged and operating below the tubular blank and which is pivoted (as I have arbitrarily called same) to the conveyer, which may be a cylinder, or on a rocking carriage, as shown in the drawings. The supplemental carrier is also provided with a pair of bevel-edged side clips and a front clip, the former adapted to swing into the tucks of the bellows-sided tube and hold the plies of the lower tucks and the latter arranged to swing down on the lower ply of the tube and hold the same to the supplemental carrier. The tube being held by these instrumentalities the tucker-plate is causedto vibrate on its trunnions mounted on the stationary frames, the folding-blades are caused to vibrate, and simultaneously'the supplemental carrier is caused to oscillate. Thus the tube is unfolded, the primary transverse foldingline across the tubular blank is defined, the inside triangular folds formed, and the truncated diamond form produced. The machine, as herein shown and described in its preferred construction, employs two supplemental carriers oscillating on a cylinder; but it is obvious that one supplemental carrier will answer or more'than two can be arranged for, depending upon the length and size of the bag to be produced.

Figure 1 is a side view of the machine, showing the tucked-paper tube gripped between the drawing-rolls and in a position ready for the bottom-forming mechanisms to operate thereon, the striker in a position ready to sever the blank from the continuous tube,also sho wing a part of the broken-away former, and representing the conveyer as a continuous revolving cylinder. Fig. 2 is a plan view of what is represented in. Fig. 1. Fig. 3 is a sectional-end View of the machine, taken on the broken line 3 3 of Fig. 2 in the direction of the arrows. Figs. 4, 7, andlOare plan views, Figs. 5, 8, and 11 are sectional end views, and Figs. 6, 9, and 12 are side views, of the blank when the bottom-forming mechanisms are in operation thereon at different stages. Figs. 13 and 14 are a side and an end view, respectively, of a modified form of the conveyor and adapting the supplemental car rier to a rocking or reciprocating carriage, showing the blank clasped by the front clip and bevel-edged side clips to that carrier.

In the following specification, of which the accompanying drawings form a part thereof, similar letters and numerals of reference designate like or equivalent parts wherever found throughout the several views, and in which- The numeral designates the bed of the machine, to which are securely fastened the uprights 21 and 22, and also the frames 23 and 21, in which the various shafts and mechanisms are journaled, as hereinafter more fully described.

Motion is communicated to the machine by means of the pulley 25, driven in the direction of the arrow 26, fastened to the shaft 27, which is journaled in the frames 23 and 24:, and carries on the inner side of the frame 23 a gear 28 and on the outer side of the frame 24 the cam 29, from which the different motions and mechanisms are driven. The gear 28 meshes into the gear 30, is fastened to the shaft 31, which is journaled in the uprights 22 and 21 and frame 21, and has fixed uponit the lower front drawing-roll 32. The gear 30 meshes into the gear 34, which is fastened to the shaft 35,also journaled in the uprights 21 anc 22, and has fastened thereto the upper front drawing roll 36. meshes into the intermediate gear 37, which is rotatably mounted on the stud 38, fastened to the upright 21, and which meshes into the intermediate gear 37 rotatably mounted on the stud 38 and which meshes into the ear 40, fastened to the shaft 41, which is journaled in the uprights 21 and 22 and has fixed upon it the lower rear drawing-roll 42. The gear 40 meshes again into the gear 44, fastened onto the shaft and carrying the upper rear drawing-roll 46. Fastened to the shaft 45 on the left-hand side of the drawing-roll 46 is the miter 47, meshing into the miter 48 on the striker-shaft49, which is journaled in the projecting lugs 22 and 22 of the upright 22 and carries clamped thereto the striker-arm 50, which revolves across the path of the tube, carrying it against the serrated knife 50 and severing a blank at each rotation. The gears 30, 34. 40, and 44, with their corresponding rolls 32, 36, 42, and 46, are so geared in relation to the striker-arm 50 that to each revolution of the striker-arm a suitable length of tubing is drawn forward enough to make the body and the bottomforming end of the bag-blank.

By the means above described, a continuous motion is transferred from the driving mechisms to the drawing-rolls, the tucked-paper tube being severed into bag-blank lengths and delivered to the bottom-forming mechanisms to perform their respective functions, as will now be explained.

On the right-hand side of the frame 23 and fastened to the shaft 31 is the gear 51, mesh- The gear 28 also upright 24.

, cated diamond form is completed.

plemental carriers are also provided with two ing into the intermediate gear 52 on stud 52, which meshes into the cylinder-gear 53, fastened to the shaft 5t, which is journaled in the frames 23 and 24c and has fastened thereto the mutilated cylinder 55, having the n1utilations or sector- like sections 55 and 55 into which the supplemental carriers 56 are permitted to oscillate, and the tops or folding surfaces'of the supplemental carriers form the supplement of the mutilations of the cylinder. The normal position of the supplemental carriers is that position where the tops or folding surfaces of the carriers form the continuation of the cylinder. In the drawings two of these supplemental carriers are shown (indicated by the numeral 56) pivoted to the cylinder by the shaft 57. The right-hand side of the carrieris provided with theextension 58,adapted toen gage the groove 59 of the stationary cam 59, mounted on the inwardly-projecting hub of the upright The cam-groove 59 is of such shape that as the supplemental carrier is propelled around by the rotation of the cylinder the carrier is caused to be oscillated toward the center of the cylinder and immediately returned to its normal position, as clearly shown in the drawings at Figs. 6, 9, and 12.

The supplemental carriers are provided with front clips (51, fastened to shafts 57.

Their left-hand free ends are provided with cam-arms 63, engaging the stationary campieces 64: and 64 fastened to the flange 62, which is mounted on the projecting hub of the The timing of the cam- pieces 64 and 6%, that cause to operate the front clip 61, in relation to the rotation of the cylinder and the severing of the blank by the rotation I of the striker-arm is such that the front clip 61 is caused to close by the pressure of the spring (35 as the leading end of the tube advances and holds the lower ply of the tube thereto, as shown, to carry the same onward and to release the same again, when the trun- The suppairs of bevel-edged side clipsthat is, with each front clip is coacting one pair of oppositely-disposed bevel-edged side clips 67, pivotally mounted on shafts (58 in bosses 69 be- 11 eath the folding surfaces of the supplemental. carriers. The side clips are held in an open or closed position by the spring 70 in the well-known manner. The projections 71. are caused to engage, as the cylinder revolves, the cam-strips 72 and '72, respectively fastened on the right-hand side of the machine to the stationary cam 59 and on the left-hand side to the flange (32.

The cam-groove 59", which causes to operate the supplemental carriers 56, the campieees G4 and 64, which cause to operate the front clips 61, and the cam- strips 72 and 72, which cause to operate the bevel-edged side clips as the cylinder revolves, are so shaped in relation to the rotation of the cylinder and the advancing bottom-forming end of the tucked-paper tube that the folding surface of the supplemental carrier is slightly brought out of the normal position-that is, out of the circular path of the cylinder (see Fig. 6)to enable the tube to distend and open to allow the side clips, as well as the front clip, to enter more readily and hold the lower ply of the tube and the lower plies of the tucks to that carrier and to carry the blank onward while the remainder of the bottom-forming mech-' anisms that are mounted above the paper-bag blank are in engagement therewith, as will now be explained.

Above the paper-bag blank is mounted the vided with the projection 79, engaging the cam-groove 29 in the cam 29. The distance from the center line of the trunnions to the folding edge of the tucker-plate is substantially equal to the depth of the tucks and serves to define the primary transverse folding-line across the tubular blank as the same is propelled onward by the cylinder. By the means above described the tucker-plate is vibrated through the arc of a circle of about one hundred and eighty degrees from a posi tion as shown in Fig. 6 through that of Figs. 9 to 12.

The folding-blades 80 are fastened to the hollow sleeves 81, which are mounted in the lugs 23 and 24 of the stationary frames 23 and 24:, and arranged on each side of the conveyer in substantially such position that the center lines of the sleeves 81 form about fortyfive degrees with the center line or direction of the travel of the blank at such a height that the folding edges of the blades intersect the center line of oscillation of the tuckerplate, which is about even with the top of the upper ply of the tube, as clearly shown in Figs. 4, 5, and 6. The sleeves 81 have fastened on their outer ends the sectors 82, meshing into the sectors 83, which are fastened to the, cross-shaft 8i and j ournaled in the frames 23 and 24, and which also carries the sector 86, which is pivotally mounted on the stud S7. The lower end of the sector 86 carries the projection 88, engaging the cam-groove 89of the gear 28. Cooperating with each folding-blade 80 are the pincers 90, which are fastened to the shafts 91 and. pivotally mounted in the sleeves 81, to the outer ends of which are fastened the arms 92, provided with the projections X and Y. The springs 93 engage at one end with the arms 92 and the other ends engage the sectors 82, and thus the pincers are held in their normal position with a springtension against the folding-blades. The pincers are operated by vertical sliding rods 95, mounted in the lateral projections or hubs 23 and 2t of the frames 23 and 24 andare provided at their lower extremities with the projections 95, engaging the cams 96, which are fastened'to the shafts 27. 'Springs' 96 always keep the projections 95 in engagement with the cams. The timing of the cam-groove 29, the cam-groove 89, and cams 96, that cause to operate the tucker -plate 7 5, the folder-blades 80, and pincers 90, respectively, are in such relation to the rotation of the cylinder and the supplemental carriers carried by the cylinder with its clips that as the bottom-forming end of the tube enters the folding mechanisms the pincers are caused to be carried away from the folder-blades, so that the tube enters with the upper plies between the folder-blades and the pincers. The latter are then caused to be closed by the cams 96 and the action of the springs 93,and thus the upper part of the tube is firmly held between the fOlding blades and the pincers. The camgroove 89 then begins to operate the foldingblades 80, and simultaneously the cam-groove 29 causes to operate the tucker-plate at a rate of speed of the combined movements of the carrier and the rotation ofthe cylinder and the folding edge defining the primary transverse folding-line across the blank.

In Figs. 13 and 14 I have represented this invention in its adaptation where the supplemental carrier is attached to that special modified form of a conveyer termed an oscillating or reciprocating carriage in place of a rotating cylinder that propels the folding-bed onward.

The connecting-rod 131 is worked by a crank (not shown in the drawings) and is pivoted by the stud 132 to the rocking carriage 133, and that carriage rocks upon the shaft 134 in the uprights 23 and 24. The operation of the vibratory tucker-plate 75, with its coacting folding-blades 80, their pincers 90, and their mode of operation are identical with the foregoing description and therefore need no further explanation. The supplemental carrier A receives an oscillatory motion from the connecting-rod A, pivotally attached to the arm A on the shaft A mounted on the carriage 133, the outer free end having attached the arm A provided with the projection A engaging the cam-groove A At the front end of the carriage is pivotally mounted the front clip B, which is loosely fitted to the stud B and operatively connected to the connecting-rod B attached to the arm B fastened to the shaft 5, the free end of which is connected. to the cam-arm B provided with the extension B ,engaging the camgroove B The bevel-edged side clips 0, which are pivoted in hubs adjacent and below the folding surface and on oppositely-disposed sides of the supplemental carriers, have the extensions 0, which engage the arms 0 which are fastened to the shaft B, operatively connected to the connecting-rod C the lower end of which is pivoted to the arm 0 fastened to the shaft 0 on' the outside of which is carried the arm having the extension 0 which engages the cam-groove C The cam-groove A, that causes to operate the supplemental carrier A, the cam-groove B that operates the front clip 13, and the camgroove 0 that operates the side clips 0, are timed in relation to the oscillation of the re ciprocating carriage 133, so that when the carriage is in the position nearest to the drawing-rolls the supplemental carrier is lowered to the amount to safely allow for the entering of the bottom-forming end of the tucked-paper tube between the carrier and the tuckerplate. The front clip B and the side clips 0 are then caused to be closed, the former holding the lower ply of the tube and the latter entering into and between the tucks and holding the lower plies of the tucks. Simultaneously the pincers 90 enter the tucks and hold the upper plies of the upper tucks to the folding-blades. The blank being held by these instrumentalities just described the carriage is rocked forward. The supplemental carrier A is caused to be vibrated by its respective cams, thus unfolding the tucks and producing the inside right-angled triangular folds and defining the primary transverse foldingline across the tubular blank and converting the tucked-paper tube into the truncated diamond form, which may then be drawn from the carriage and the end flap folded by any of the well-known mechanisms.

The operation of the machine is as follows: The paper is taken from the roll and converted into a continuous tucked-paper tube which is guided into the bite of the drawingrolls 42 and 46 and under the serrated knife 5O and then into the bite of the drawing- rolls 32 and 36, and as the striker revolves across the path of the tube it forces the tube against the serrated edge of the knife 50 and severs the blank therefrom at each rotation. The drawing-rolls are so geared with relation to the revolution of the striker as to feed through a suitable length for each rotation thereof. The bottom-forming end of the tube is then guided into the bottom-forming mechanisms in such a manner that the same enters below the folding edge of the tucker-plate 75, and the pincer-blades 00 are lowered, so that they enter the tucks as the blank advances and are then caused to be closed, clasping the upper plies to the folding-blades. Simultaneously the front clip 61 is closed on the carrier and the side clips are caused to. close, holding the lower plies of the tube to the car rier. The blank at this stage is best shown in the drawings in Figs. l, 5, and 6. The folding-blades, the tucker-plate, and the supplemental carrier are then operated by their respective cam- grooves 89, 29, and 59 passing through the positions of Figs. 7, 8, and 0 into the positions of Figs. 10, 11, and 12 when the truncated diamond is completed. Thus the tucked-paper tube is unfolded, the primary transverse folding-line across the tubular blank is defined by the folding edge of the tucker-plate and the well-known rightangled triangular folds produced, and the truncated diamond completed. Paste is then applied and the front flap folded by any of the well-known methods. (Not shown in the drawin gs.)

It is obvious that in a two-bag cylinder, as shown in the drawings and arranged with two carriers, a single-bag cylinder can be used, arranged with one carrier, depending upon the size of the bag, speed of the machine, and various other functions that are required and well known to those acquainted with the art of this class of machines,

Having now described the nature of my invention and the manner and the mode of its operation, what I claim, and desire to secure by Letters Patent, is-

1. In a paper-bag machine the combination of the conveyer; an .oscillating carrier having one end pivoted to the conveyor; mechanism to oscillate the carrier upon its pivot, and devices to cooperate with the carrier consisting of a pair of blades and pincers and operating during both parts of the oscillation of the carrier, during the forward movement with the conveyer to'unfold a paper tube and .refold it into a paper blank.

2. In a paper-bag machine the combination of the conveyer an oscillating carrier pivoted to that conveyer; and means for defining and holding the corners of one side of the paper blank to that carrier; the oscillating tuckerplate mounted on trunnions in the stationary frames and having the folding edge adapted to travel with the paper blank; a pair of foldin g-blades provided with pincers and mounted at substantially forty-five degrees with the transverse folding-lines as specified.

3. In a paper-bag machine the combination of the conveyer; an oscillating carrier having one end pivoted to the conveyer mechanisms to oscillate the carrier upon its pivot, and means to hold the blank at those points where the corners of one side of the bag-bottom are to be located, a tucker-plate vibrated upon trunnions not substantially on a line with the defining edge, which is adapted to travel with the carrier in order to define the transverse folding-line across the blank; the foldingblades provided with pincers arranged to hold the other side of the blank all combined to unfold a paper tubeand refold it into a paper blank.

4. In a paper-bag machine the combination of the conveyer; an oscillating carrier having one end pivoted to the conveyer; the cam and the intermediate mechanism to operate the same as the conve yer is propelled onward and provided with means to hold the blank at those points where the corners of one side of the bag-bottoms are to be located; the tuckerplatc, the vibrating end forming the folding edge which is adapted to travel near or on the carrier with the combined movements of the carrier and conveyer in order to define the transverse folding-line across the blank; the

folding-blades mounted on the stationary frames and operating substantially as described and provided with pincers all combined and Operating as described.

5. In a paper-bag machine the combination of the conveyer; an oscillating carrier having one end pivoted to the conveyer, the cam and intermediate mechanisms to oscillate the carrier while the conveyer propels the carrier onward and provided with means to hold the blank at those points where the corners of one side of the bag-bottoms are to be located; a tucker-plate having a folding edge and adapted to travel substantially through the arc of one'hundred and eighty degrees, and which is adapted to travel with the carrier and the conveyer in order to define the transverse folding-line across the blank; the foldingblades mounted in the stationary frames and operating substantially as described and being provided with pincers; all combined to unfold the paper tube and refold the same into the paper blank.

6. In a paper-bag machine the combination of the conveyer; an oscillating carrier having itsfront end pivoted to the conveyer; mechanisms to oscillate the carrier upon its pivot as the conveyer is propelled onward; the oppositely-disposed bevel-edged side clips, means to close the same at predetermined intervals to hold one side of the blank at those point-s where the bottom corners of one side are to be located; the tucker-plate having the defining edge to define the primary transverse folding-line on the other side of the blank; the folding-blades having their folding edges substantially in line with the center of rotation of the blades; the pincers and means to exert a pressure on the blades by the springcams to operate the blades and the pincers at proper times and the required extent'substantially as described.

'7. The combination of a conveyer; a carrier pivoted to the conveyer and adapted to be vibrated; a tucker-plate having the folding edge adapted to fold and define the primary transverse folding-line on a paper-bag blank; operating mechanisms consisting of a cam for operating the same; the oppositely disposed folding blades mounted at substantially forty-five degrees to the center line of the tuckerplate; pincers cooperating with the folder-blades; cams to open the pincers, cams and their connecting mechanisms to operate the foldingblades at the respective times and the required extent, substantially as described.

8. The combination of a conveyer; an oscillating carrier pivoted to the conveyor and adapt-ed to be vibrated; a tucker-plate having a folding edge adapted to fold and define the primary transverse folding-line in a paper-bag blank and arranged to be oscillated through the arc of a circle of about one hundred and eighty degrees by means of a cam, the two oppositelydisposed folding-blades having their center of rotation at forty-five degrees to the center line of the tucker-plate, pincers cooperating with the folder-blades and cams to open and close the same, cams and their connections to operate the foldingblades at their respective times and to the proper extent; and springs to hold the pincers with a tension on the folding-blades substantially as described.

9. The folding-blade mounted on the sleeve in the frame of the machine, the sector 82 mounted on the sleeve and receiving a motion by means of a cam and its intermediate mechanisms, the pincers having its center of rotation coinciding with the center of rotation of the folding-blades and having its shaft mounted in the sleeve, the arms 92 fastened to the shaft, the spring having one end attached to the arm 92 and the other to the sector 82, substantially as described.

10. The folding-blade 80, having its folding edge substantially coinciding with the center of its rotation and-mounted on the sleeve 81 to which is attached the sector 82 receiving a motion by means of its intermediate mechanisms and its cam, the pincers 90 mounted on the shaft 91 concentricallywith the sleeve and provided with the arm 92 which is caused to be operated at the proper times by a cam to be opened and then to be closed by the spring and to be held under spring-tension until and after the folding-blade has been caused to be operated substantially as described.

11. A tuckerplate having a folding edge adapted to fold and define the primary transverse folding-line on a paper-bag blank and arranged to be oscillatedthrough an arc of a circle of about one hundred and eighty degrees by means of a cam, the distance of that folding edge to the center of rotation being substantially equal to the depth of the tuck of the paper-bag blank, the folding blades having their center of rotation at forty-five degrees to the center line and passing through the same, pincers cooperating with the folderblades, cams to open the same, and cams and their connections to operate the folding-blades at the required times and to the proper extent substantially as described.

EDW'ARD E. CLAUSSEN.

\Vitnesses:

.JANETTE S. ELLSWORTH,

WILLIAM WARD.

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