US3796141A - Tray and tray opening mechanism - Google Patents
Tray and tray opening mechanism Download PDFInfo
- Publication number
- US3796141A US3796141A US00297998A US3796141DA US3796141A US 3796141 A US3796141 A US 3796141A US 00297998 A US00297998 A US 00297998A US 3796141D A US3796141D A US 3796141DA US 3796141 A US3796141 A US 3796141A
- Authority
- US
- United States
- Prior art keywords
- blades
- tray
- trays
- opening mechanism
- stack
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G59/00—De-stacking of articles
- B65G59/10—De-stacking nested articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/74—Auxiliary operations
- B31B50/76—Opening and distending flattened articles
- B31B50/78—Mechanically
- B31B50/786—Mechanically by introducing opening fingers in the collapsed blanks
- B31B50/787—Rotating fingers; Two or more fingers moving relatively to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2120/00—Construction of rigid or semi-rigid containers
- B31B2120/30—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing
Definitions
- ABSTRACT A tray opening mechanism and an improved tray are disclosed in this application.
- the opening mechanism consists of a pair of blades that are supported for both pivotal movement about a fixed shaft and rotational movement about axes perpendicular to the shaft.
- the trays are removed from a stack and inserted onto the blades while the blades are in a raised position and the blades are automatically rotated 180 in one direction and then rotated 90 in the opposite direction to initially over-bend the tray and then return the tray to an erected position, while the blades and tray are provided from the raised position to a lowered position.
- the improved tray has cutouts located at specific locations so that the blades may be moved directly into engagement with the top wall of the tray to insure that the blades are inserted between the top and bottom walls of the trays.
- a tray opening device of the present invention consists of a pair of blades thatare supported for movement to automatically over-bend the tray beyond its open position and return the tray to the open position while it is being moved from a stack of trays to a position for discharge onto a conveyor.
- the blades are carried by blade support means that is pivotally supported on a stationary shaft which also supports a frame extending generally upwardly adjacent a stack of flat trays.
- the frame carries vacuum pickup means for sequentially removing the trays from the stack and inserting the trays onto the blades.
- the blades are then automatically rotated 180 from a horizontal tray receiving position to over-bend the tray and then returned to a vertical position while the blade support means is moved from the raised or upwardly inclined position to the lowered or horizontal position.
- This is accomplished by simple gearing means that are rotatably supported on the fixed shaft and are in mesh with gears on the ends of the blades.
- the flat trays are specifically designed to insure that the blades are inserted between the top and bottom walls.
- two side walls of equal width join a top wall and a bottom wall, which are also of equal width, and the lower side wall and bottom wall have cutouts which are aligned with the blades to allow the blades to directly engage the top wall of the tray before the tray is actually moved onto the blades.
- FIG. 1 is a side elevation view of the tray opening mechanism
- FIG. 2 is a fragmentary perspective view of an improved tray in an open condition
- FIG. 3 is an enlarged section taken generally along line 33 of FIG. 1;
- FIGS. 4 through 7 show the respective stages of a carton tray between removal from the stack and delivery to a conveyor.
- FIGS. 1 and 3 of the drawing show the tray opening mechanism, generally designated by the reference numeral 10, which includes a base 12 defining spaced uprights 14 (FIG. 3) that support fixed stationary shaft means 16.
- a frame 18 extends upwardly at an angle from shaft 16 to a position adjacent a rack 20 supported on an upwardly inclined portion 22 of base 12.
- Tray 20 supports a stack 24 of flat, unopened trays 26 of the type disclosed in the open condition FIG. 2, which will be described in more detail later.
- the frame 18 supports vacuum pickup means 30 (FIG. 3) for sequentially removing trays from the stack 24 and placing the trays on a pair of elongated flat blades 32.
- Vacuum pickup means 30 consists of cross member 34 having an elongated sleeve 36 secured at one end with the sleeve being guided along a rod 38 supported on brackets 40 that extend inwardly from one side of frame 18.
- the opposite end of cross member 34 has a roller 42 secured thereto which is guided for reciprocal movement along track 44 secured to the other side of frame 18.
- Cross member 34 supports a pair of conduits 46, the opposite ends of which are open and have suction cups or means 48 secured thereto. A negative pressure or vacuum is produced at a source (not shown), which is connected to conduits 46 through flexible hoses 49.
- the vacuum pickup means 30 is reciprocated between first and second positions by reciprocating means including a fluid ram having cylinder 50 secured at one end to bracket 40 and at the opposite end to a bracket 52 with piston rod 54 of the fluid ram connected to sleeve 36 through an extension and nut 56.
- Fluid such as air, may be introduced to opposite ends of the cylinder 50 through conduits (not shown) to move pickup means 39 from a position adjacent the tray stack 24 to a position adjacent the blades 32.
- frame 18 is supported for movement relative to the tray stack between a tray pickup position and a tray release
- the means for pivoting frame 18 consists of a further fluid ram 60 having its cylinder 62 connected to extension 22 of base 12 and its piston rod 64 connected to the frame 18. By supplying fluid to the rod end of cylinder 62, the frame is pivoted from the solid line position shown in FIG. 1 to the dotted line position to engage the lower tray in stack 24 with the vacuum cups 48.
- blades 32 are mounted so that they are automatically rotated to produce the desired bending action while the blades are moved from a tray receiving position to a tray releasing position.
- blades 32 are supported for rotational movement about spaced parallel axes on blade support means 70 through a pair of stub shafts 72 that are rotatably supported in openings 74.
- Blade support means 70 is in turn supported for pivotal movement on fixed shaft or shaft means 16 through a pair of arms 76 that have sleeves 78 secured thereto and encircling the fixed shaft 16.
- Blade support means 70 is pivoted on shaft 16 through pivoting means consisting ofa fluid ram having its cylinder 80 (FIG.
- Th cylinder and piston rod assembly 80, 84 forms part of drive means for pivoting the blades about the shaft.
- the remainder of the drive means consists of a beveled gear 90 connected to the end of each stub shaft 72 adjacent fixed shaft 16.
- Gears 90 respectively mesh with a further pair of beveled gears 91 that are fixed to a sleeve 92, which encircles fixed shaft means 16 for rotation thereon.
- Sleeve 92 is rotated between first and second positions through a fluid ram consisting of cylinder 93 and piston rod 94 connected to sleeve 92 through an arm 95.
- the tray opening mechanism also incorporates means for removing the trays from the blades and inserting the trays on an endless conveyor 96.
- the means for removing may take the form of a fluid ram having a cylinder 97 carried by base 12 and a piston rod 98 connected to a pair of pusher plates 99 so that the extension and retraction of the piston rod 98 in cylinder 97 will push the open tray 26 onto conveyor 96 between a pair of upstanding fingers 96a that support the tray in the open position.
- Tray 26 is clearly shown in FIG. 2 and consists of upper wall 110, lower wall 112, which are of equal width an are interconnected or integrally joined by a pair of side walls 114a and 11412, also of equal width and substantially less than the width of the upper and lower walls.
- Upper wall or top wall 110 has a plurality of openings 116 therein for receiving containers that are being processed, while the lower or bottom wall is impervious and supports the containerswithin the openings.
- one side wall 114a of the tray is located in a plane with bottom wall 112 while the other side wall 114]) is located in a plane with the top wall 110.
- the tray has a pair of cutouts specifically located as will now be described.
- side wall 114a has one end removed between top wall 110 and bottom wall 112 to define a cutout 120 which has a width equal to the width of the side wall 1 14a.
- a second cutout of substantially equal configuration is formed in the bottom wall adjacent the same end as cutout 120 and the second cutout 122 is located at the other side wall of the tray. The reason for the cutouts 120 and 122 will be described in connection with the operation of the machine.
- the starting point of the operation will be considered to be the point at which a tray 26 has just been removed from the blades 32 and the elongated flat blades 32 are positioned where the transverse dimensions of the blades extends generally perpendicular to the axis of shaft 16 (shown in the phantom lines in FIG. 1).
- Fluid is supplied to the cylinder to pivot the blade support means 70 approximately 45 from the horizontal position to an upwardly inclined position or tray receiving position.
- sleeve 92 is held in a fixed position and thus the pivotal movement of blade support means 70 will cause the blades to be rotated approximately so that the transverse dimensions of the blades are parallel to the axis of shaft 16 an the blades are aligned with frame 18, as is most clearly shown in FIG. 3.
- fluid is supplied to the rod end of cylinder 62 to raise or pivot the frame about fixed shaft 16 and move the vacuum cups 48 to the pickup position shown in dotted line in FIG. I to cause vacuum cups 48 to pickup the lowermost tray in the stack 24.
- Fluid is then supplied to the head end of cylinder 62 to move frame 18 to the solid line position during which timethe lowermost tray will be removed from the stack and placed in the position shown in FIG. 4.
- cutouts 120 and 122 The reason for the cutouts 120 and 122 can now be appreciated. As most clearly shown in FIG. 3, the outer edges or ends of the blades overlap with the trays and extend beyond the adjacent end of the tray 26 with the blades aligned with the respective cutouts. Thus, the relative movement between the blades and tray will cause the blades to move into cutouts 120 and 122 and allow the tips or ends of the blades 32 to directly contact the top wall and the one side wall 1141b as the blades are moved or pivoted from the first to the second position.
- the blades are then moved from the upwardly inclined position to the substantially horizontal position, respectively shown inFlGS. 5 and 6, by supplying fluid to the rod end of cylinder 80. During this movement, the blades will again be rotated 90 by the intermeshing gears 90 and 91. However, during the lowering of the blades from the upwardly inclined tray receiving position to a tray discharge position aligned with the conveyor, sleeve 92 is likewise rotated in a generally counterclockwise direction as indicated in the arrow in FIG. 6 to rotate the blades an additional 90 and produce an over-bend in the tray where the positions of the side walls 1 14a and 1 14b are substantially reversed. This rotational movement of sleeve 92 is produced by supplying fluid to cylinder 93.
- the sleeve 92 is rotated in the clockwise direction, to place the blades in the vertical position shown in FIG. 7, at which time the tray will be in an open position.
- the gears 90, 91 and sleeve 92 cooperate with the flat blades to automatically rotate the blades substantially more than 90 in the opposite direction to over-bend the trays and then return the blades to a position where the transverse dimensions are generally perpendicular to the shaft 16 when the blades are pivoted from the tray receiving position to the tray discharge position.
- Fluid is then supplied to the cylinder 97 to push the tray 26 from the blades between the upstanding fingers 96a on the conveyor 96 and the tray is in a position to the tray to be formed of a relatively thin cardboard material, which, may not necessarily be completely selfsupporting.
- the use of the cutouts allows the blades to positively engage a portion of the tray before the tray is moved endwise onto the blade to insure that each tray is positioned on the blades.
- a tray opening mechanism comprising: a base having stationary shaft means; blade support means carried by said shaft means; a pair of flat blades supported for rotation about spaced parallel axes on said blade support means; a frame extending from said base to a position adjacent a stack of flat trays; pickup means for sequentially removing trays from the stack and moving the flat trays endwise onto the aligned blades; drive means for rotating said blades about said axes and pivoting the blades about said shaft means to open said traysand align the open trays with conveyor means; and means for removing the trays from said blades and inserting the trays on the conveyor means.
- said drive means includes pivoting means for pivoting said blade support means on said shaft and means cooperating with said blades to simultaneously rotate said blades while said blade support means is pivoting.
- a tray opening mechanism comprising a pair of elongated flat blades; blade support means for supporting said blades for rotation about spaced parallel axes; means for supporting said support means for pivotal movement about a fixed axis generally perpendicular to said parallel axes between a tray receiving position and a tray discharge position; drive means cooperating with said flat blades for automatically (1) rotating said blades approximately 90 in one direction while said blade support means is pivoting from the tray discharge position to the tray receiving position to position the transverse dimensions of said blades generally in a common plane with said fixed axis, and (2) rotating said blades substantially more than 90 in the opposite direction and returning the blades to a position where the transverse dimensions of the blades extend generallyperpendicular to said fixed axes while the blades are moved from the tray receiving position to the tray discharge position; and means for sequentially removing trays from a stack and inserting the trays endwise on said blades while the blades are in a tray receiving position.
- the vacuum means is in one position.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
- De-Stacking Of Articles (AREA)
Abstract
Description
Claims (11)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29799872A | 1972-10-16 | 1972-10-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3796141A true US3796141A (en) | 1974-03-12 |
Family
ID=23148564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00297998A Expired - Lifetime US3796141A (en) | 1972-10-16 | 1972-10-16 | Tray and tray opening mechanism |
Country Status (1)
Country | Link |
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US (1) | US3796141A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4000687A (en) * | 1975-03-03 | 1977-01-04 | R. A. Jones & Company, Inc. | Method for erecting cartons |
US4553954A (en) * | 1981-04-17 | 1985-11-19 | Western Packaging Systems, Ltd. | Automatic case erector and sealer |
US20070161484A1 (en) * | 2005-12-16 | 2007-07-12 | Peter Zepf | Carton flap gripping system |
US9636884B2 (en) * | 2015-04-30 | 2017-05-02 | Otto M Stroud | Box configuring tool and dispenser |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1495192A (en) * | 1923-08-31 | 1924-05-27 | Gordan Machine Company | Carton-opening mechanism for packaging machines |
DE525459C (en) * | 1929-05-05 | 1931-05-26 | Jagenberg Werke Ag | Device for feeding folding boxes to the processing point and for relaxing the longitudinal bending edges by bending the opened boxes back and forth |
US1989286A (en) * | 1932-07-30 | 1935-01-29 | Redington Co F B | Carton stripping and squaring mechanism |
DE656359C (en) * | 1936-03-19 | 1938-02-03 | Waffen Und Munitionsfabriken A | Device on packaging machines for feeding and opening folding boxes |
US2757498A (en) * | 1949-12-10 | 1956-08-07 | Meyer-Jagenberg Gunther | Mechanical equipment for manufacturing, filling and sealing containers |
US3038387A (en) * | 1960-10-24 | 1962-06-12 | Pearson Co R A | Carton setting up machine |
US3143937A (en) * | 1962-07-20 | 1964-08-11 | Bartelt Engineering Co Inc | Machine for erecting cartons |
US3156167A (en) * | 1962-05-07 | 1964-11-10 | Fmc Corp | Carton handling apparatus |
US3606823A (en) * | 1970-04-20 | 1971-09-21 | Container Equipment Corp | Apparatus for opening and partially erecting folded and collapsed cartons |
-
1972
- 1972-10-16 US US00297998A patent/US3796141A/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1495192A (en) * | 1923-08-31 | 1924-05-27 | Gordan Machine Company | Carton-opening mechanism for packaging machines |
DE525459C (en) * | 1929-05-05 | 1931-05-26 | Jagenberg Werke Ag | Device for feeding folding boxes to the processing point and for relaxing the longitudinal bending edges by bending the opened boxes back and forth |
US1989286A (en) * | 1932-07-30 | 1935-01-29 | Redington Co F B | Carton stripping and squaring mechanism |
DE656359C (en) * | 1936-03-19 | 1938-02-03 | Waffen Und Munitionsfabriken A | Device on packaging machines for feeding and opening folding boxes |
US2757498A (en) * | 1949-12-10 | 1956-08-07 | Meyer-Jagenberg Gunther | Mechanical equipment for manufacturing, filling and sealing containers |
US3038387A (en) * | 1960-10-24 | 1962-06-12 | Pearson Co R A | Carton setting up machine |
US3156167A (en) * | 1962-05-07 | 1964-11-10 | Fmc Corp | Carton handling apparatus |
US3143937A (en) * | 1962-07-20 | 1964-08-11 | Bartelt Engineering Co Inc | Machine for erecting cartons |
US3606823A (en) * | 1970-04-20 | 1971-09-21 | Container Equipment Corp | Apparatus for opening and partially erecting folded and collapsed cartons |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4000687A (en) * | 1975-03-03 | 1977-01-04 | R. A. Jones & Company, Inc. | Method for erecting cartons |
US4553954A (en) * | 1981-04-17 | 1985-11-19 | Western Packaging Systems, Ltd. | Automatic case erector and sealer |
US20070161484A1 (en) * | 2005-12-16 | 2007-07-12 | Peter Zepf | Carton flap gripping system |
US7422552B2 (en) * | 2005-12-16 | 2008-09-09 | Wexxar Packaging, Inc. | Carton flap gripping system |
US20080254963A1 (en) * | 2005-12-16 | 2008-10-16 | Peter Zepf | Carton flap gripping system |
US7766808B2 (en) | 2005-12-16 | 2010-08-03 | Wexxar Packaging Inc. | Carton flap gripping system |
US9636884B2 (en) * | 2015-04-30 | 2017-05-02 | Otto M Stroud | Box configuring tool and dispenser |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: OWENS-ILLINOIS PLASTIC PRODUCTS INC., ONE SEAGATE, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE APRIL 15, 1987;ASSIGNOR:OWENS-ILLINOIS, INC.;REEL/FRAME:004875/0962 Effective date: 19870323 Owner name: OWENS-ILLINOIS PLASTIC PRODUCTS INC., A CORP. OF D Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:OWENS-ILLINOIS, INC.;REEL/FRAME:004875/0962 Effective date: 19870323 |
|
AS | Assignment |
Owner name: BANKERS TRUST COMPANY, AS COLLATERAL AGENT Free format text: SECURITY INTEREST;ASSIGNOR:FORT HOWARD CUP CORPORATION;REEL/FRAME:005287/0404 Effective date: 19891114 |
|
AS | Assignment |
Owner name: SWEETHEART CUP COMPANY INC., ILLINOIS Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANKERS TRUST COMPANY, AS COLLATERAL AGENT;REEL/FRAME:007029/0011 Effective date: 19930830 Owner name: SWEETHEART CUP COMPANY INC., ILLINOIS Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BANKERS TRUST COMPANY, AS COLLATERAL AGENT;REEL/FRAME:006687/0491 Effective date: 19930830 |