US2180431A - Method of and machine for producing crinkled paper lined bags - Google Patents

Description

Nov. 21, 1939. F. T. ROBINSON METHOD 0F AND MACHINE FOR PRODUCING CRINKLED PAPER LINED BAGS Original Filed June 23. 1933 I 9 Sheets-Sheet l Nov. 21,v 1939. F T- ROBlNSON y 2,180,431

METHOD 0F AND MACHINE FOR PRODUCING CRINKLED PAPER LINED BAGS original Filed June 23, 1933 9 sheets-sheet '2 1N VEA/Tok ATTORNEYS Nov. 21, 1939. F. T. RoBlNsoN 2,180,431

vMETHOD 0F AND MACHINE FOR PRODUGING CRINKLED PAPER LNED BAGS Original Filed June 23, 1933 9 Shets-Sheet 3 @f BY I Nov. 21, 1939.Y F, T. ROBINSON 2,180,431

METHOD 0F AND MACHINE FOR PRODUCING GRINKLED PAPER LINED BAGS l-"originaljfliled June-2 3, 1,933 9 sheets-sheet 4 II- ai 1N VENTO/e ,4 T11-ORNE YJ METHOD oF AND MACHINE FOR RoDUcING GRINKLED PAPER LINED BAGS Nov. 2l, 1939. F. T. ROBINSON v1955 9 Sheets-Sheet 5 Original Filed June 23.

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F. T. ROBINSON Original Filed June 23, 1933 Nov. 21, 1939.

METHOD 0F AND MACHINE FOR PRODUCING GRINKLED PAPER LINED BAGS 9 Sheets-Sheet 7 Nw) SS +Mw Rff/ T Q l A V l u Il l. I

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METHOD 0F AND MACHINE PQR PRODUCING CRINKLED PAPER LINED BAGS I 1H 1 inhvwh -In d -..1.1i

Nov. 21, 1939. F. T. ROBINSON 2,180,431

METHOD 0F AND MACHINE FOR PRODUCING GRINKLED PAPER LINED BAGS Original Filed June 23, 1933 9 Sheets-Sheet 8 gy. Z

V. /N VENTO/e A TTORNE K5 Nov. 21, 193.9. F. T; ROBINSON 2,180,431

` METHOD OF AND MACHINE FOR PRODUCING GRINKLED PAPER LINED BAGS Original Filed June 23, 1933 9 Sheets-Sheet 9 EE 9 f ATTORNEYJ Patented Nov. 21, 19139 UNITED sTATEs METHOD OF AND MACHINE Fon Paolino- ING oniNxLEn PAPER LnvED BAGS Francis T. Robinson, Rockville Centre, N. Y., as-

signor to Arkell Safety Bag Company, New York, N. Y., a corporation of New York Application June 2s, v1933, serial No. 677,238 Renewed April 26, 1939 11 Claims.

'I'he present invention relates to the manufacture of crinkled paper lined bags of-textile fabric and crinkled paper linings for bags, barrels and other containers, and has for its object to provide novel and improved articles of the character indicated, and methods and machines for use in the manufacture thereof.

The several features of the invention, whereby the above-mentioned and other objects may be attained, will be readily understood from the following description and accompanying drawings. in which:

Figure 1 is aside elevation of a portion of a machine embodying certain features of the linvention in their preferred form;

' Fig. 2 is a plan view of the same with .certain parts shown in section; i

Figs. 3 and 4 are detail sectional views, on an enlarged scale, taken respectively on the lines zo 3.-3 and 4-4 of Fig. 2;

Fig. 5 is a sectional end elevation of a portion of the machine taken substantially'on the line 5 5 of Fig. 1; I

Fig. 6 is a side elevation, partly in section, of a u glue applying device, shown applying a line Of glue toa lining blank;

Fig. 'I is a detail sectional view of portions of paper scoring rolls, hereinafter described;

Fig. 8 is a similar View of portions of pressure 30 applying rolls operating on a lining blank;

Fig. 9 is a plan view, partly diagrammatical, illustrating certain steps in the method of forming linings;

Figs. 10, 11 and 12 are detail sectional views B5 on an enlarged scale, respectively taken on the lines Ill-l0, II-Ii and .i2-I2. of Fig. 9;

Fig. 13 is a view in perspective of a lining made in accordance with my improved method;

Figs. 14 and 15 are corresponding views of the lower portion of the lining, showing one method of closing the bottom of the lining;

Fig. 16 is a detail sectional view, on an enlarged scale, taken on the line IB-IB of Fig. 13;

Fig. 17 is a view similar to Fig. 13 showing a L5 modified form of lining;

Fig. 18 is a detail sectional view taken on the line |8|8 of Fig. 17; 1 r

Fig. 19 is a View in perspective of another modied form of lining;

u) Fig. 20 is a side elevation of an attachment for the rear portion'of the machine,\said attachment being particularly adapted for use in mak ing linings of two-piece construction;

Fig. v21 is a plan view of the same; A Figs. 22 and 23 are views similarto Figs. 20

and 21, illustrating the manner ofluse of the attachment in forming linings of a single piece;

Fig. 24 is a sectional view-on an enlarged scale taken on the line 24-24 of Fig. 23;

Figs. 25, 26 land 27 are sectional views'of the 5 crinkled paper taken substantially on the lines -25, 2li- 26 and 21-21 of Fig. 23;

Fig. 28 is a plan viewl of a crinkled paper tube formed by my improved machine from which the bag tubes may be severed in accordance with my 10 improved method;

Fig. 29 is a side view of one of the bag tubes;

Fig. 30 is a sectional view on an enlarged scale Fig. 31 is a plan view corresponding to va por-,15 tion of Fig. 2 showing the devices that may bey employed in forming bag tubes having the'crinkles in the paper running longitudinally of the tubes; I

Figs. 32, 33 and 34 are detail sectional views 20 respectively taken on the lines 32-32, 33-33 and 34-34 of Fig. 31;

- Fig. 35 is a detail plan view of the longitudinally crinkled strips als operated upon by the devices illustrated in Fig. 31; 25

Fig. 36 is a diagrammatical sectional view, taken on the line 36-36 of Fig. 35.

The machine illustrated in Figs. 1 to 7, inclusive, is particularly adapted for use in forming the bag lining illustrated in Fig. 13 of the drawings. 30

'I'his machine is provided with two sets of upper and lower feed belts 2 which pass overpulleys or rolls 6 that are secured'onI shafts 8, the adjacent stretches of the belts being arranged horizontally one upon the other.l 'Ihe lower .shafts 8` have 35 their ends journaled in bearings in the frame of the machine.Y The upper shafts 8 have their ends journaled in bearing blocks i0 which are mounted to slide vertically in suitable guideways in the machine frame so as to cause the upper 40 belts by gravity to be pressed downwardly toward the lower belts. The upper belts are still further pressed downwardly upon the lower beltsv by means of coil springs i2 interposed between the upper ends of the blocks I0 and adjusting screws 45.

or bolts I4. The upper and lower shafts 8 are operatively connected by gears I6 so as to cause the adjacent stretches of the upper and lower belts to travel in the same direction and at the same speed. The upper belts are placed under tension by gravity rollers i8 that engage the upper stretches of these belts, the rollers being mounted on arms that are pivotally mounted on pins 20.

The two sets of feed belts are driven by a belt or sprocket chain 22 which passes over a sprocket t wheel on the lower forward shaft 8, and a sprocket Wheel on a drive shaft 24 in the base of the machine. This shaft 24V is driven through a belt or sprocket chain 26 which passes over a sprocket wheel on the shaft 24` and a sprocket wheel on a shaft 28. A pulley 21 is mounted on the shaft 28 and is driven by a belt 38 from the shaft of an electric motor 32, the pulley 21 being adapted to be clutched to shaft 28 by means of a sliding clutch member 29.

The upper one of the rear shafts 8 carries two sets of scoring disks 34 which have beveled edges that are received in correspondingly beveled grooves in rolls 36 carried by the lower one of the rear shafts 8 (Figs. 2, 5 and rI).

As the material passes between the feed belts 2, lines of glue 3| are applied to the top surface thereof adjacent its longitudinal edges by means of nozzles on the lower ends of pipes 48 which lead from a supply pipe 42 that .in turn leads from the lower end of a glue supply tank 46. The glue in the tank may be forced up through the pipe 42 by air pressure supplied through a pipe 48 in communication with the upper end of the tank.

Each of the nozzle pipes 48 is provided with a hand operated pet cock 58 so that the glue to either pipe may be shut off. The pipe 42 is provided with valves 52 arranged at the further side of the nozzle pipes 48 and adapted to be opened and closed by means of arms 54 that are con nected by a rod 56, extending across the rear of the machine, with links 58 that have their lower ends pivotally connected with arms 68 secured to pivot shafts 62. These shafts 62 are adapted to be turned to open and close the valves 52 simultaneously by means of hand levers 64 secured thereon, said levers being arranged at opposite sides of the rear of the machine so that one or the other of them may be conveniently operated by the operator and the hand levers being connected to move together by means of a link 66.

Upon operating either one of these hand levers 64 to open the valves 52, the feed belts 2 are thrown into operation and upon operating them to close the valves 52 the feed belts are brought to rest. To provide for this, the link 66 is connected through an arm 68, a pivot shaft 18 and an arm 12 with the clutch member 29 on the shaft 28.

'I'he machine is provided with folding devices 16 adjacent the nozzles of the glue pipes 48, and with folding devices 18 placed a distance in front thereof. Between the folding devices 16 and 18,

upper and lower guide rolls 88 on shafts 82 re-A spectively engage the top side of the lower stretches of the upper feed belts and the under sides of the upper stretches ofthe lower feed belts. In addition the upper stretches of the lower belts aresupported by the rolls 19 mounted on the shaft 8|.

The guide rolls 88 have knurled extensions 83 that engage the material as it enters the second folding devices 18.

For the purpose of applying pressure to the folds of the material as they leave the foders 18, pressure rollers 84 are carried by the front upper and lower shafts 8, each of the upper rollers being provided with a clearance groove 85.

The set of material engaging devices above described at each side. of the machine -are of the same general construction, arrangement and mode of operation as the corresponding parts of the machine of my pending application Ser. No. 589,831, filed January 30, 1932.

In the present machine, means are provided for adjusting the set of such devices at the further side of the machine, viewing Fig. 2, toward and from the other set. To provide for this, said devices are carried by a fr ame 86 which is mounted to slide on four rods 88 extending between the side frames of the machine. AThe folding devices 16 and 18 of thefurther set are secured to this frame so as to move therewith. The pulleys over which the upper and lower feed belts 2 of the further set pass, the upper and lower pressure rolls 84 on the front shaft 8, and the upper and lower scoring disks or rolls 34 on the rear shaft 8, are all mounted to slide on said shafts 8, these parts being caused to rotate with the shafts by means of a key 98 on each shaft that extends through slots in said parts. These pulleys, rolls and disks on each shaft are secured together and caused to move with the sliding frame 86 by means of bars 92 secured to the frame which extends over the ends of each group of pulleys, rolls and disks. The further set of upper and lower guide rolls 88 are similarly caused to move with the frame 86 through bars which engage the ends of the rolls, the upper bars being secured to the cross member 94. The further one of the tension rolls |8 has the pivot pin 28 for its arm secured to one of the bars 92-so that this tension roll is also carried by the sliding frame 86.

With this construction, the further set of the several work engaging devices may be simultaneously moved towardand from the other set by sliding the frame 86 on the rods 88. To thus slide the frame 86, screw-threaded rods 86 are screw-threaded through blocks 88 secured to the frame, the ends of the rods being journaled in the side frames of the machine. The two screwthreaded rods are connected to turn together by means of a sprocket chain |88 which passes over sprocket wheels secured to the rods. The rods are adapted to be turned by means of a hand wheel |82 secured to one of the rods.

Adjacent the rear end of the machine there are mounted on brackets |84 transverse guide rods |86, |81, |88 and |89. The rods |81 and |89 have guide disks ||8 secured thereon, the

further disks being adapted to be adjusted longitudinally of the rods.

In setting up the machine to form the bag lining illustrated in Fig. 13 of the drawings, two strips and ||2 of crinkled paper may be supplied to the machinefrom supply rolls, the crinkles in the strips extending transversely thereof. The strip ||2 is passed under'the guide rod |86 and over the guide rod |81 to the feed belts 2, and the strip is passed beneath the guide rod |88 over the guide rod |89 to the feed belts, these two strips being positioned together in superposed relation between the feed belts. The lower strip ||2 is of greater width than the other, and the two stripsv are centrally positioned so that when they are brought together between the feed belts the longitudinal edges of the lower strip project a distance beyond the longitudinal edges of the upperY strip. The lower strip is guided by means of the disks ||8 on the guide rcd |81 engaging the longitudinal edges of the strip, and the upper strip is guided by the disks ||8 on the rod i 89 Iengaging the longitudinal edges of the upper strip- 'Ihese guide rods serve to smooth out the strips without placing them under material stretching strain.

As the two strips thus arranged pass between the feed belts 2, the scoring disks 34 make lines ||3 and |l5 of scoring in the material, the lines y ||3 being in the lower strip adjacent the longitudinal edges of the upper strip, and the score lines ||5 being spaced inwardly therefrom.

After the strips pass the scoring devices, the lines of glue 3| are applied tothe top surface of the upper strip adjacent the longitudinal edges thereof by means of the nozzles 40. Each line of glue is spaced midway between the line of scoring in the upper strip and the longitudinal edge thereof. i

As the strip passes beyond the nozzles, it is acted upon by the folding devices 16 which fold f over the projecting edges of the lower .strip upon the lines of glue. As the twostrips `leave these folding devices 16, they enter the folding devices 18 which fold the strip on the inner score lines 5. As the strips pass from the folding devices 16 to the folding devices 18, they are firmly held down by means of the extensions 83 of the rolls 80. As the strips leave the folding devices 18, their folds are firmly pressed together by means of the pressure rolls 84, the clearance grooves 85 allowing pressure to be applied without applying pressure to the lines of glue. When the two strips thus pass through the machine and are secured together to form a tube, the tube may be wound in a roll ||6 supported on a bracket ||8 at the front of the machine.

It will be apparent that by adjusting the sliding frame 86 by means of the hand wheel |02, by

suitably positioning the glue applying nozzles 40 and adjusting the position of the guide disks H0, the machine may be adjusted to form tubes of different widths as desired.- The glue'supplying means comprising the pipes 40 permits a sui- `ciently heavy gob-like line of glue to be applied to e insure that the glue may thoroughly illl the spaces between the crinkles and thus insure a rm and secure seam being formed.

The machine as above described is adapted to form the tube without placing the transversely crinkled paper under any material strain that would affect the stretchability thereof, and in winding the formed tube into the roll H6, the roll may be driven at such speed, with relation to the speed of operation of the machine, to insure smooth winding without placing material tension on the tube.

After the formed tube has been wound into the roll H6, the glue is permitted to become more or less dry or set and then the roll or strip may be unwound and severed into bag tubes.' The lines of severing of the tube may be substantially as indicated at |20 in Fig. 28.

Instead of winding the formed tube into a roll and allowing the glue to dry before cutting into bag lengths or tubes, the formed tube may be cut into bag tubes as it leaves the machine, and the tubes stacked to permit the glue to dry.

To form the bag lining villustrated in Fig. 13, the lower. end portions of the longitudinal folds in the bag tube are turned outwardly as indicated in Fig. 14, and then the lower end portion of the tube turned upwardly and the same secured by a line of stitching |22. Upon returning the lower end portions of the longitudinal folds to their initial positions, the bag lining is completed.

Instead of closing the lower end of the lining by the sewed seam |22 the upwardly turned lower end may be secured in position by means of a line of glue |24, the two sides of the lining at its lower end being secured together by a line of glue |25.

The lining iuustrated in. zeig. 19 is similar to 4the lining illustrated in Figs. 13 and 17 except mechanism being an attachment for the machine.

As shown, this attachment comprises a table |28 which has upper and lower feed rolls |30 at its forward end, and on. a stand |32 spaced from the rear end of the table are cutting disksV |34.

The lower disks |34 are secured on a shaft |33 and the upper disks are mounted in brackets secured to a rod |35.l The lower feed roll |30 is driven by means of a sprocket chain |36 which passes over a sprocket wheel on the shaft of said roll and a sprocket wheel |38 on a shaft |40 which is driven by a sprocket chain |42 that passes over a sprocket wheel thereon and a sprocket wheel on the drive shaft 24 of the machine. The cutting disk shaft |33 is driven through connections with the lower feed roll |30. This connection comprises a longitudinally extending shaft |44 which is connected with the shaft of the lower feed roll |30 through beveled gears |46. The rear end of this shaft is connected through beveled gears |48 with a transverse shaft |50 that drives'the disk shaft |33 throimh a sprocket chain |52.

On the top of the table there are strip guiding bars |54 and |56 that are respectively adapted to be adjusted across the table by means of adjusting screws |58 and |60.

With this attachment a single web of paper is fed between the cutters |34, the end cutters trimming the rough edges of the sheet, and the central cutter |34 severs the web on a linel spaced a distance to one side of the longitudinal center line of the web so'as to cut the web into two strips of different widths. The wider strip passes beneath the guide bar |56 and its inner longitudinal edge is guided by the bar |54. The narrow strip is initially given a half turn so as to position it centrally over the wider strip, the two strips passing between the feed rolls |30 in this condition. As the strips pass from the cutters |34 to feed rolls |30, curved guiding devices |62 serve to properly guide the. narrow strip. From the feed rolls |30 the lower strip passes over a guide rod |64 and then beneath the rod |06. The upper strip passes over a guide rod |66 and then to the guide rod |08.

Instead of making the tube of two strips as described, the machine may be employed to form a tube of a single strip by means of the attachment illustrated in Figs. 22 and 23. This attachment may be substantially the same as the attachment illustrated in Figs. and 21, except that in place of the central cutting devices |34, scoring disks |68 are employed. With this construction as the web passesbetween the scoring disks it is scored on a line |69 spaced to one side of the center line of the web. As the Web is fed along, it is folded over on the score line so as to position the longitudinal Vedge of its narrower portion a distance inwardly from the other longitudinal edge. From the feed rolls the folded web may be passed over. the guide rod |64 beneath the rod |06 and over the guide rod |01 to the feed belts.

When the tube is thus formed from a single web, the gluing device comprising the nozzle 40 and the rst folding device 10 on the further side of the machine is not used, the nozzlebeing shut off. When the tube is thus formed from a single web it may be severed into bag tubes. The lower end of the bag tubes may be closed by a line of stitching |10, thecomplete bag lining being shown in Figs. 29 and 30.

In some cases it may be desirable to form a bag lining with the crinkles in the paper extending longitudinally of the lining. In such case where the lining is to be made of two sheets of crinkled paper, folding devices |12 (Figs. 31 to 36) may be employed for folding the projecting edges of the wider strip over the narrow strip. Instead of this folding being guided by scoring in the strip as in the case of-strips that are transversely crinkled, it is guided by a rod |14 which is positioned close to the grooved guiding device and over which the guiding device bends and folds the paper.

As will be evident to those skilled in the art, my invention permits various modifications without departing from the spirit thereof or the scope of the appended claims.

What I claim is:

1. The method of forming bag linings of the class described which comprises feeding longitudinally two strips of crinkled paper of different widths, the crinkles in the paper extending transversely thereof, bringing the strips together into superposed relation with the longitudinal edges of the wider strip projecting beyond the longitudinal edges of the other strip, folding the projecting edges of the wider strip over the longitudinal edges 0f the other strip, applying lines of glue to the strips wherebysaid edges are secured together when said projecting edges are folded over to form a tube, severing said.tube into bag tubes, closing one end of the bag tubes, and folding over the longitudinal margins of the tube previously to severing the tube into bag tubes.

2. The method of forming bag linings of the class described which comprises feeding a web of crinkled paper longitudinally, severing the web longitudinally on a line spaced at one side of the longitudinal center thereof so as to form two strips of different width, during the continued feeding of the paper positioning the narrower strip over the other strip with the longitudinal edges of the wider strip projecting a distance beyond the longitudinal edges of the narrower strip, folding the projecting edges of the wider strip over the edges of the narrower strip, and securing said edges together by adhesive applied previously to said folding operation.

3. The method of forming bag linings of the class described which comprises feeding a web of crinkled paper longitudinally, the crinkles in the paper extending transversely thereof, severing the web longitudinally on a line spaced at one side of the longitudinal center thereof so as to form two strips of different width, during the continued feeding of the paper positioning the narrower strip over the other strip with the longitudinal edges of the wider strip projecting a distance beyond the longitudinal edges of the narrower strip, folding the projecting edges of the wider strip over the edges of the narrower strip, securing said edges together by adhesive applied previously to said folding operation, and folding over the longitudinal edges of the formed tube.

4. The method of forming bag linings of the class described which comprises feeding a web of crinkled paper longitudinally, the crinkles in the paper extending transversely thereof, folding the web over on a line spaced at one side of the longitudinal center thereof so as to position one of the longitudinal edges of the web a distance inwardly from the other longitudinal edge, folding the projecting longitudinal'edge over the other longitudinal edge, gluing the two edges together so as to form a tube, thereafter severing the tube into bag tubes, and folding over the longitudinal edges of the formed tube.

5. The method according to claim 4 comprising the additional steps of severing the formed tube into bag tubes and closing one end of the bag tubes.

6. In a machine for use in the manufacture of bag linings, the combination of means for feeding two sheet portions of crinkled paper longitudinally, said sheet portions being arranged in superposed relation, comprising two sets of feeding devices for respectively engaging opposite longitudinal edge portions of the material, means for folding over the longitudinal margins of said material as it is being fed comprising two sets of folding devices arranged to act respectively on the longitudinal edges of the material, and means for adjusting one set of said feeding devices and the associated folding device toward and from the other set of feeding devices and the other folding device.

7. In a machine for use in the manufacture of bag linings, the combination of means for feeding two sheet portions of crinkled paper longitudinally, two sets of devices for respectively acting on opposite longitudinal edge portions of the material as the material is being fed, each set comprising devices for folding over the associated longitudinal edge portion of the material and a device for compressing the fold thus made in the material, and means for adjusting one set of said devices toward and from the other set.

8. In a machine for use in the manufacture of bag linings, the combination of means for feeding two sheet portions of crinkled paper longitudinally, two sets of devices for respectively acting on opposite longitudinal edge portions of the material as the material is being fed, each set comprising devices for folding over the associated longitudinal edge portion of the material and a device for compressing the fold thus made in the material, a carrier for one set of said devices, and means for moving said carrier to move the set of said devices carried thereby toward and from the other set.

9, In a machine for use in the manufacture of bag linings, the combination of means for feeding two sheets of paper longitudinally in superposed relation, the sheets being of different width,A and the wider sheet having its longitudinal edges projecting beyond the other sheet, devices for scoring the wider sheet on a line adjacent the longitudinal edges of the narrower sheet and for scoring both sheets on lines spaced inwardly from the longitudinal edges of the narrower sheet, devices for applying a line of glue to the outer side of the narrower sheet adjacent its longitudinal edges, devices for folding over the projecting edges of the wider sheet upon said lines of glue so as to secure the two sheets together and for folding the longitudinal edges of the two sheets upon the second mentioned lines of scoring, and devices for compressing said folds.

10. In a machine for use in the manufacture of bag linings, the combination of means for feeding a web of paper longitudinally, means for severing the web as it is fed into strips of dierent widths, devices for positioning one of the strips over the other strip with the longitudinal edges of the wider strip projecting beyond the longitudinal edges of the narrower strip, and means for folding the projecting edges of the wider strip over the edges of the narrower strip and securing them 10 together to form a tube.

1l. The method of forming bag linings of the class described which comprises feeding crinkled paper in a direction transversely of the crinkles in the paper, forming the crinkled paper into a attened tube having its longitudinal edges closed, folding over the longitudinal margins of the tube thus formed, and -severing the thus formed tu into bag tubes.

FRANCIS T. ROBINSON.

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