US2961814A

US2961814A - Packaging machine

Info

Publication number: US2961814A
Application number: US588076A
Authority: US
Inventors: Redmond Benjamin; Sanford S Redmond
Original assignee: Individual
Current assignee: Individual
Priority date: 1956-05-29
Filing date: 1956-05-29
Publication date: 1960-11-29
Anticipated expiration: 1977-11-29

Description

Nov. 29, 1960 B. REDMOND EI'AL PACKAGING MACHINE 5 Sheets-Sheet '1 Filed May 29, 1956 IN VEN TORS BENJAMIN REDMOND ANFORD REDMOND ,BY

ATTORNEY Nov. 29, 1960 B. REDMOND EI'AL 2,961,814

PACKAGING MACHINE Filed May 29, 1956 INVENTORS BENJAMIN REDMOND SANFORD S. REDMOND XMW I ATTORNF Nov. 29, 1960 s. REDMOND ETYAL 2,961,814

PACKAGING MACHINE Filed May 29, 1956 5 Sheets-Sheet 3 Fig. 2

INVENTORS BENJAMIN REDMOND SANFORD REDMOND ATTO RNEY Nov. 29, 1960 B. REDMOND ETAL 2,961,814

PACKAGING MACHINE Filed May 29, 1956 5 Sheets-Sheet 4 INVENTORJ BENJAMIN REDMOND SANFO o s. DMoND ATTORNEY Nov. 29, 1960 Filed May 29, 1956 B. REDMOND HAL PACKAGING MACHINE BENJAMIN REDMOND SANFORD .REDNOND ATTORNEY 2,961,814 Ice Patented Nov. 29, teen PACKAGING MACHINE Benjamin Redmond and Sanford S. Redmond, both of 42 N. Moore St., New York, NY.

Filed May 29, 1956, Ser. No. 588,076

6 Claims. (Cl. 53225) This invention relates to packaging machinery and more particularly to a wrapping machine.

An object of the invention is to provide a mechanism which when combined with conventional elements will wrap packages more rapidly and efliciently.

A further object is to provide a machine which will occupy considerably less space than the machines available today and which may be built more economically and to sell at a lower price.

A still further object is to provide a mechanism whereby the leading end tucks are made and the package is then rotated 180 degrees prior to making the additional tucks.

A further object of the invention is to provide a mechanism that has virtually no reciprocating parts, resulting in the reduction of wear, elimination of noise, reduction of power requirements and reduction of maintenance costs.

Other objects and advantages become apparent from the following description and accompanying drawings, in which Fig. 1 is a diagrammatic view showing the main features of the packaging machine.

Figs. 2 to 6 are diagrammatic views showing the processes of packaging through the main section of the machine.

Fig. 2 shows a package entering the machine.

Fig. 3 shows the package entering the rotating member with the first tuck being made.

Fig. 4 shows a package being rotated.

Fig. 5 shows the package leaving the rotating member with a second tuck being made.

Fig. 6 shows a package passing the end tuckers where the bottom and top tucks are made.

Fig. 7 is a plan view of the rotating member.

Fig. 8 is a front view of the rotating member.

Fig. 9 is a sectional view of the rotating member taken on the line 9-9 of Fig. 8.

Fig. 10 is a front view of a modified rotating member.

Fig. 11 is a sectional view of the modified rotating member taken on the line 11-11 of Fig. 10.

Fig. 12 is a view similar-to Fig. 1 but showing the modified form of the invention in which the rotating member embodies two chambers.

Fig. 13 is a detailed view showing a package in the rotating chambers.

Fig. 14 is a detailed view showing the chamber rotatm Fig. 15 is a detailed view showing a package being moved from the rotating chambers by conveyor means.

Fig. 16 is a detailed view showing a package fully wrapped.

Fig. 17 is a cross-sectional view taken on the line 17-17 of Fig. 12. I 1

Fig. 18 is a detailed view of the cutting elements cutting the wrapping material to size.

Fig. 19 is a view taken on the line 19-19 of Fig. 12.

This application is a continuation in part of our pending application Serial No. 564,940, filed February 13; 1956, and now abandoned.

Referring more particularly to the drav'vings,-we pro: vide a supply of paper or web 15. The web 15 passes over the

rollers

17, 18 and 19 through the

rollers

20 and 21, between a stationary blade 22 and a rotatable blade 23, where it is cut to size. A magazine 25 containing packages 26 to be wrapped communicates with a conveyor 27 mounted on sprockets 28 and 29. The con-v veyor 27 consists of two separate chains having spaced bars 27 to move the packages into the wrapping material. As the packages move along the conveyor 27,. they meet the cut sheet of paper or web 31, which is; positioned in the paper rack 32. They then pass through the forming member 35 which folds the paper or wrapping material about the package. From this position they move into the rotating member 36 which consists of a chamber having tucking

members

37 and 38 extending therein. The chamber is mounted on

shafts

39 and 40 in

bushings

41 and 42 and may be equipped with wires.

43 to act as skids and guides to prevent excessive fric-;

tion. The rotating chamber is also provided with

rollers

45 and 46, the purpose of which will be hereinafter de-' scribed. The shaft 39 is rotated by a conventional mecha-" nism which is not shown. ,7

As the package passes through the chamber 36, the leading tucks are formed by the tucking members 37f and 38. The rotating chamber is then turned 180 degrees and the package is advanced into the chamber 50 where'- the tucker 51 forms a second end tuck. As the pack-; age moves, the tucker 52 forms a bottom tuck and the tucker 53 forms a top tuck. The package then moves into sealing means of conventional types, employing either heat, adhesives or solvents. The heat may be applied by heating the tuckers rather than using additional heating means. As the rotating chamber 36 is rotated, the

rollers

45 and 46 may be used to space the package temporarily to prevent the machine from jamming. I

In the modification shown in Figs. 10 and 11, we pro vide a chamber 60 which has a movable roller or bar 61 movable in the slot 62. This will move a package from" one end of the container to the other end, then when the chamber is rotated it will be in a position to move the next package out of the chamber. i

It will be understood that the roller or bar 61 is activated by the incoming package which pushes the package preceding it, thus simultaneously spacing the packages, preventing interference during rotation, and acting as a stop to the incoming package.

While the foregoing defines our invention in its simpler form, it will be appreciated that a plurality of chambers may be used either one over the other or side by side" without departing from the spirit of the invention.

In the modification shown in Figs. 12 to 19, the rotating member 70 comprises two

chambers

71 and 72. Iii operation, one of the

chambers

71 or 72 is in line with the first chamber 73 while the other chamber will beiri' line with the final tucking chamber 74. The first cham-' her, which bands the package, is provided with a heating element 75 so that the wrapping material will be sealed to the package as it is handed before it enters the first tucking process. Where adhesives instead of heat are used, the adhesives may be applied before it enters the first chamber. 1

The wrapping material is fed from the roll 15 in the same manner as heretofore described and is cut by the rotating cutter 23 and the stationary cutter 22 just as the package 76 enters the chamber 73, causing the individual sheet of wrapping material 77 to band the package. The member 70 is then rotated by means of a conventional indexing mechanism which drives the chain 78 and the sprocket 79 on the shaft 80. Mounted adjacent 3 the member 70 is a spring 81 which tends to hold the wrapping material 77 against the side of the package as the member 70 is rotated. A chain 85 hearing spaced pushing members 86 moves the package from the

chamber

71 or 72 into the chamber 74 and past the tuckers {57, 88 and 39. The arms 86 pass through slots 90 in the rotating member 70 and are provided with a pushing element 91 which engages the package to move it along.

In order to feed the paper with precision and speed we provide on the cutter bar 23 and its opposing roller 91 a pair of guides 92 and

wires

93 and 94 to bend the paper so that it will have greater rigidity and can be fed more rapidly.

While we have shown the heater 75 on the chamber 73, it will be appreciated that additional heaters Will be used to seal the package before it passes the final operation.

It will also be appreciated that the speed of any machine of this type is somewhat dependent on the amount of heat to be applied to seal the package without burning it. It is also a fact that the friction between the package and the tuckers tends to place adverse tension on the wrapping, but pre-sealing the upper leading flap in the banding phase, which when rotated becomes the trailing lower flap, substantially improves the rate of speed at which the package may travel through the tuckers.

In the drawing, Fig. 12 shows the package 76 being fed into the chamber 73 and partly banded. Fig. 13 shows the package being fed into the rotating member 70 where the one end is tucked. Fig. 14 shows the member 70 rotating to partially cause the banding of the package and in Fig. 15 the package is being moved into the chamber 74 where banding is completed and the other end of the package tucked. Fig. 16 shows the side folds being formed to complete the wrapping.

We claim:

1. In a wrapping machine, a pivotally mounted member containing chambers, means to convey a package into one of said chambers, means to intersperse cut to size lengths of wrapping material in the path of the package prior to its entry into the chamber, fixed tucking means mounted in the chamber to form front tucks of the package and band paper around it on its entry, indexing means to sequentially rotate the entire member 180 degrees about a transverse central axis of the chamber containing member causing the receiving chamber to move into a discharge position, and to further band the paper around the package and causing the second chamber to move into the receiving position, and continuously moving conveying means comprising an endless chain having projecting flights moving in a path parallel to the travel of the package to remove the package from the first mentioned chamber and further tuckers to complete the folding and sealing of the flaps when the package is advanced from the chamber.

2. In a wrapping machine a pivoted member having at least one rigidly mounted package receiving chamber thereon, said chamber having one end open to receive a partially wrapped package and the opposite end partially open, means to rotate said member in increments of 180 degrees and continuously moving conveying means said conveying means comprising a chain having projecting flights, moving in a path parallel to the travel of the package to pass through said rotated chamber to remove the package therefrom past further means to complete the wrapping.

3. In a wrapping machine, a pivoted member having at least one fixedly mounted package receiving chamber thereon, said chamber having one end open to receive a partially wrapped package and the opposite end substantially open and also having at least one of the faces presented parallel to the direction of the travel of the entering package intersected by one or more slots, said slots being substantially parallel to the direction of the travel of the entering package, means to rotate the member in increments of degrees and continuously moving conveying means topass through said rotated chamber to remove the package therefrom past further means to complete the wrapping.

4. In a wrapping machine a pivoted member having a pair of fixedly mounted package carrying chambers thereon, said chambers having stationary tuckers, one end open to receive a partially wrapped package and the opposite end substantially open and also having at least one of the faces which are parallel to the direction of the travel of the entering package intersected by one or more slots, said slots being substantially parallel to the direction of the travel of the entering package, means to rotate the member in increments of 180 degrees and continuously moving conveying means having flights moving in a path substantially parallel to the direction of the travel of the package to pass through said slots to remove the package therefrom past further means to complete the wrapping.

5. In a Wrapping machine an infeed conveying means to feed a package to be wrapped, a wrapping material feed mechanism to intersperse cut to size lengths of wrapping material in the path of the package carried in by the infeed conveyor, a pivoted member having a rotating and indexing mechanism and having a pair of package carrying chambers fixedly mounted thereon, said chambers containing fixed tuckers and having one end open to receive a package during a stop position and the opposite end substantially open, a continuously moving outfeed conveying means positioned to pass through one of the chambers in a path parallel to the travel of the package during a subsequent stop position to move the package out of the chamber through the end by which it entered and carry the package past further means to complete the wrapping.

6. In a wrapping machine an infeed conveying means comprising a chain having projecting flights to feed a package to be wrapped, a wrapping material feed mechanism to intersperse cut to size lengths of wrapping material in the path of the package carried in by the infeed conveyor, a pivoted member having a rotating and indexing mechanism and having at least one package carrying chamber fixedly mounted thereon, said chamber containing fixed tuckers and having one end open to receive a package during a stop position and the opposite end partially open, a continuously moving outfeed conveying means positioned to pass through the chamber in a path parallel to the plane of travel of the package during a subsequent stop position to move the package out of the chamber through the end by which it entered and carry the package past further means to complete the wrapping.

References Cited in the file of this patent UNITED STATES PATENTS 846,658 Giroud Mar. 12, 1907 1,055,461 Hohl Mar. 11, 1913 1,133,668 Redington et al Mar. 30, 1915 1,161,785 Moore Nov. 23, 1915 1,235,547 Brown Aug. 7, 1917 1,573,669 Bolingbroke Feb. 16, 1926 2,024,438 Evans et al. Dec. 17, 1935 2,153,483 Rose Apr. 4, 1939 2,373,655 Bronander Apr. 17, 1945 2,625,779 Peterson Jan. 20, 1953 2,729,042 Brook Jan. 3, 1956