US3170274A

US3170274A - Wrapping machine

Info

Publication number: US3170274A
Application number: US151910A
Authority: US
Inventors: Franklin B Roberts; Luczek Walter
Original assignee: Package Machinery Co
Current assignee: Package Machinery Co
Priority date: 1961-11-13
Filing date: 1961-11-13
Publication date: 1965-02-23
Anticipated expiration: 1982-02-23
Also published as: GB961498A

Description

Feb. 23, 965 F. B. ROBERTS ETAL 3,170,274

WRAPPING MACHINE l9 Sheets-Sheet 1 Filed Nov. 13, 1961 komwavo I u m I Illlnlllllll nllllll..-

mk ug MSQQJE INV EN TORS FRANKLIN a. Rose-27's WALTER LUCZEK BY 496 +772 an? s 1965 F. B. ROBERTS ETAL 3, 7

WRAPPING MACHINE 19 Sheets-Sheet 2 Filed Nov. 13, 1961 INVENTOKS FRANKLIN BLROBERTS WALER LUCZEK BY (fzegaw'f-yed Feb. 23, 1965 F. B. ROBERTS ETAL 3,170,274

WRAPPING MACHINE 19 Sheets-Sheet 3 Filed NOV. 13, 1961 \ll 1 T f I O mt wm wt 9: Q\\ 3 Feb. 23, 1965 F. B. ROBERTS ETAL 3,

WRAPPING MACHINE Filed Nov. 15, 1961 19 Sheets-Sheet 5 i w I I'Q V!!! m I M Ill INVENTORS FRANKLIN B. ROBERTS WA LTER L uczex BY 14 #77441 Mm v7 5 Feb. 23, 1965 F. B. ROBERTS ETAL 3,170,274

WRAPPING MACHINE Filed Nov. 13, 1961 19 Sheets-Sheet 6 m s l i l I I I l I l l I I I I I I I l 1 I 1 I I l 4% m w 5; 4 Mad 4 g 4 2 u 2 w wa 3m w Z Feb. 23, 1965 F. B. ROBERTS ETAL 3,170,274

WRAPPING MACHINE Filed Nov. 15, 1963. 19 Sheets-Sheet 7 5 m kd 5 wa 4 E wkay 5+ m ww N W mm WM NT wm 2 QR a H A R Em wwww aw wwm k 3 NW Feb. 23, 1965 F. B. ROBERTS ETAL WRAPPING MACHINE Filed Nov. 13, 1961 19 Sheets-Sheet 8 WALTER LUCZEK BY 77M Feb. 23, 1965 F. B. ROBERTS ETAL 3,170,274

WRAPPING MACHINE Filed Nov. 13. 1961 19 Sheets-Sheet 9 INVENTOR FRANKL/N .B. ROBERB WALTER LUCZEK Y q W- a2 Feb. 23, 1965 F. B. ROBERTS ETAL 3,170,274

WRAPPING MACHINE l9 Sheets-Sheet 10 Filed Nov. 13, 1961 INVENTORS FRANKLIN .5- ROBERTS Wag-5E1? LUCZEK BY -1241 Feb. 23, 1965 F. B. ROBERTS ETAL WRAPPING MACHINE l9 Sheets-Sheet 11 Filed Nov. 13 1961 INVENTORS FRANKLIN .B. ROBERTS WALTER LUCZEK Feb. 23, 1965 F.B. ROBERTS ETAL 3,170,27

WRAPPING MACHINE l9 Sheets-Sheet 13 Filed Nov. 13 1961 IEE.

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INVENTORS FRANKLIN B-ROBERTS WALTER LUCZEK BY (14. w 4711M Ma-Rflffi Feb. 23, 1965 I F. B. ROBERTS ETAL WRAPPING MACHINE l9 Sheets-Sheet 14 Filed Nov. 13, 1961 INVENTORS WALTER LUCZEK BY awqwzew M75 Nmw FRANKLIN B ROBERTS 1965 F. B. ROBERTS ETAL 3,170,274

WRAPPING MACHINE 19 Sheets-Sheet 15 Filed Nov. 13, 1961 Feb. 23, 1965 F. B. ROBERTS ETAL 3,170,274

WRAPPING MACHINE Filed Nov. 13

19 Sheets-Sheet 16 Feb. 1965 F. B. ROBERTS ETAL. 3,170,274

WRAPPING MACHINE Filed Nov. 13 1961 19 Sheets-Sheet 17 Iggy! INVENTORS FRANKL/N .B. ROBERKS WALTER LUCZEK 1965 F. B. ROBERTS ETAL 3,170,274

WRAPPING MACHINE l9 Sheets-Sheet 18 Filed Nov. 13, 1961 IN VEN TORS FRANKLIN .B ROBERTS WALTER L UC 25K 1965 F. s. ROBERTS ETAL 3,170,274

WRAPPING MACHINE Filed Nov. 13, 1961 19 Sheets-Sheet 19 INVEN TORS FRA NKL/N B. ROBERTS WALTER Luczzk a +Zea! 7/8 BY a a-r. alys wrapping machine.

3,170,274 r APPING MAQIHINE Franklin B. Roberts, Springfield, and Walter Luczclr, Inl dian Orchard, Mass, assignors to Package Machinery Company, East Longmeadow, Mass, a corporation of Massachusetts 1 Filed Nov.13, 1961-, SenNo. 151,910 44'Claims. (Cl. 53-226) The present invention relates toimprovements in wrapping. machines ofthe type norm-ally employed in wrapping bread, it being understood, of course, that such machines may also be employed in wrapping other articles.

The general object of ,thelinvention is to increase the rate at which bread and similar articles may be wrapped.

Another objectis to minimize the maintenance and service requirements for such machines.

A more specific object is to provide for improved control of the wrapper material as it is advanced to and around the articles to be wrapped and at the same time tofacilitate the introduction of a new web of wrapping material intothe machine in a minimum of time.

Another specific object is to provide improved means for obtaining registration of printed matter on the wrapper material relative to the articles being Wrapped.

A further object of the invention is to minimize the number of adjustments required when changing over to wrap a different size of article, and in this regard-particularly to improve the adjustment of conveyor means for advancing articles such as sliced loaves of bread to the In one aspect of the invention, the features of novelty are characterized by a wrapping machine in which linkage means are provided for moving an elevator between positions respectively aligned with infced and discharge platforms. Preferably the elevator is horizontally disposed and moved along a rectilinear path.

Other aspects are characterized by the provision of means for severing a web after it has beenpartially encircled therein by raising an elevator from an infeed platform to a discharge platform. Gripper means movable with the elevator clamp the web and position it for wrapping the next article as the elevator moves baclc to the infeed' platform. The web is thereby drawn from a: web supply system during both strokes of the elevator. Where printed panels on the web are to be registered on the articles, release of the web from the gripper means is controlled by an clectric eye mechanism.

The web supply system is characterized by means for providing a substantial length of the web under minimum tension which is readily available and facilitates its being fed during both movements of the elevator, viz as the elevator moves from the infeed platform to the discharge platform and then back again. The web supply system is also characterized by the ready manner in which various elements may be displaced tointroduce a new web therethrough. The web supply system is further characterized by the provision of means for maintaining practically the entire length of web therein taut when the supply roll therefor has been exhausted thereby minimi zingrthe inconvenience ofstarting a fresh supply roll.

The cross feed conveyor for delivering articles to the machine is characterized by the ease of its adjustment to accommodate articles of different lengths. This ad? justment' is made through the same means that are also employed to drive the conveyor.

The above and other relat'edobjects and features of the invention will be apparent from a reading of the following description of the disclosure found in the accompanying drawings and the novelty thereof pointed out in the appended claims.

United States Patent "ice 3,170,274 Patented Feb. 23, 1 965 in, section, showing the cross feed conveyor incorporated in this machine and is taken generally on lirieIII-III in FIG. 1;

FIG. 4 is a plan view of the portion of the conveyor seen in FIG. 3;

P16. 5 is an end elevation, on an enlarged scale, of conveyor drive and adjusting mechanism as viewed on lineYV in FIG. 3; I

FIG. 6 is a fragmentary view showing. the outboard end of this conveyor;

FIG. 7 is a section taken on line VII- -VH in FIG. 5;

PEG. 8' is a schematic view of the chain drive for advancing and adjusting the cross feed conveyor;

FIG. 9 is a plan view of elevator mechanism which receives loaves of bread from the crossfeed conveyor and control mechanism associated therewith; this view is taken generally on line IXlX in FIG. 1 and portions have been broken away and shown in section for the sake of clarity;

FIG. 10 is a section taken generally on line X-X in FIG. 9;

FiG. 11 is a section taken on line Xl-XI in FIG. 10;

1G. 12 is a section taken on line XII-X11 in FIG. 10;

FTG. 13 is a section taken, on an enlarged scale and with portions broken away, on line XIII-XIII in FIG. 12; I

1G. 14 is a section taken on 12;

FIG. 15 is a view taken on lineXV-XV in FIG. 9;

FIG. 15A is a section taken on line XVA-XVA in FIG. 9; V I

FIGf16 is a section taken on line XVI-XVI in FIG. 9;

FIG. 17 is a section taken on line XVII-XVII'ill FIG. 9;

FIG. 18 is a section taken generally on the same line as FIG. 10 but on an enlarged scale and with different portions broken away and in section;

FIG. 19 is a section, on an enlarged scale, taken generally on line XlX-XIX in FIG. 18;

FIG. 20 is a section taken on line XXXX in FIG. 19;

FIG. 21 is a section taken on line XI.XXI in FIG. 9; HG. 22 is a section taken on line XXII-XXII in FIG. 18;

FIG. 23 is a section on an enlarged scale taken on line XXIIIXXHI in FIG. 9; i

FIG. 24 is a section taken on 1ineXXIV-XXIV in FIG. 18;

FIG. 25 is an elevation, with portions removed and in section, of a portion of the web supply;

FIG. 26 is a section, on an enlarged scale, taken on line XXVEXXVI in FIG. 28;

FIG. 27 is a section, on an enlarged scale, taken on line XXVHYXVII in FIG. 28;

FIG. 28 is a plan view of the position of the web supply system seen in FIG. 25;

FIG. 29 is an elevation with portions broken away and in section of a further portion of the web supply;

FIG. 30 is a view' similar to' FIG. 29 but taken generally on line XXX-XXX in FIG. 31;

FIG. 31 is a view taken on line XXXIXXXI in FIG. 29;

MG. 32 is a section taken on line XXXII'-XXXII in FIG. 30.

in xiv-xiv in FIG.

General description Referring first to FIGS. 1 and 2,. the present wrapping machine, indicated generally by reference character 40, is

Claims

5. A WRAPPING MACHINE COMPRISING A HORIZONTALLY DISPOSED INFEED PLATFORM, A HORIZONTALLY DISPOSED DISCHARGE PLATFORM SPACED THEREABOVE AND VERTICALLY ALIGNED THEREWITH, AN ELEVATOR HAVING A FIRST POSITION CONTIGUOUS WITH AND HORIZONTALLY ALIGNED WITH SAID INFEED PLATFORM AND A SECOND POSITION CONTIGUOUS WITH AND HORIZONTALLY ALIGNED WITH SAID DISCHARGE PLATFORM, LINKAGE MEANS FOR MOUNTING SAID ELEVATOR AND MOVING IT BETWEEN SAID POSITIONS ALONG A SUBSTANTIALLY RECTILINEAR PATH AND A PAIR OF END FOLDERS MOUNTED ON SAID ELEVATOR, SPACED THEREABOVE AND PROJECTING TOWARDS AND INFEED PLATFORM IN THE FIRST POSITION OF SAID ELEVATOR, AND MEANS FOR SWINGING SAID FOLDERS TO DIVERGING POSITIONS WHEN THE ELEVATOR REACHES ITS FIRST POSITION AND MEANS YIELDINGLY URGING SAID FOLDERS TOWARDS PARALLEL POSITIONS WHEN THE ELEVATORS STARTS TO MOVE UPWARDLY FROM ITS FIRST POSITION.