US3698572A - Bag compactor for conveying apparatus - Google Patents
Bag compactor for conveying apparatus Download PDFInfo
- Publication number
- US3698572A US3698572A US861979A US3698572DA US3698572A US 3698572 A US3698572 A US 3698572A US 861979 A US861979 A US 861979A US 3698572D A US3698572D A US 3698572DA US 3698572 A US3698572 A US 3698572A
- Authority
- US
- United States
- Prior art keywords
- elevator
- pattern
- wall
- compaction
- disposed
- 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
- B65G57/00—Stacking of articles
- B65G57/02—Stacking of articles by adding to the top of the stack
- B65G57/16—Stacking of articles of particular shape
- B65G57/20—Stacking of articles of particular shape three-dimensional, e.g. cubiform, cylindrical
- B65G57/22—Stacking of articles of particular shape three-dimensional, e.g. cubiform, cylindrical in layers each of predetermined arrangement
- B65G57/26—Stacking of articles of particular shape three-dimensional, e.g. cubiform, cylindrical in layers each of predetermined arrangement the arrangement providing for spaces between the articles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S414/00—Material or article handling
- Y10S414/10—Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns
- Y10S414/12—Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns including means pressing against top or end of group
Definitions
- ABSTRACT A pallet loader of the type having a pallet elevator onto which patterns of articles, such as sacked material, are successively deposited and incrementally lowered for receipt of additional patterns, the loader having a movable wall above the elevator on which a pattern is disposed for transfer to the elevator, characterized by an elevator motion control which compacts a pattern while on the elevator and against the lower face of said wall.
- Pressure sensing means are associat'ed with the wall for adjusting the force of c0mpaction to a desired value.
- the elevator construction is essentially the same but its control is modified so that after transfer ring an uncompacted pattern from the top face of the curtain to the elevator, the elevator lowers to permit the curtain to close, as formerly, after which the elevator raises and compacts the pattern against the lower face of the curtain.
- the top surface of a previously compacted pattern on the elevator becomes the lower pressure face for compacting the pattern disposed on same and, since the material in the sacks may reorient in same upon compaction, the compaction is such that the interfaces come into more intimate contact, filling minor voids and thus effecting an improved tie between the compacted patterns. This may perhaps be better understood by considering the nature of the upper surface of a pattern when it engages the roller curtain during compaction.
- An additional feature resides in some improvement in the rate of operation of the entire pallet loader in that if a predetermined time of maintaining compaction is desired while a pattern is disposed on the elevator, this time does not detract from the timing of previous operations. Thus, if a desired time of compaction were desired on top of the curtain in the previous construction referred to the timing of movement of articles prior to delivery to the curtain would require coordination with compaction time.
- the elevator operated only intermittently and for short intervals of time. In the present invention the former idle time of the elevator may be utilized for compaction time, thereby permitting some overall gain in rate of operation of the entire pallet loader.
- Another object is to provide a curtain construction and pressure sensing apparatus which may be adjusted to provide a desired compaction pressure on the pattern.
- a further object is to maintain compaction for a desired time, which time utilizes former idle time of the elevator.
- FIG. 1 schematically illustrates a side elevation of the subject of the invention
- FIG. 2 is a section taken on line 2-2, FIG. 1;
- FIG. 3 is a side elevation as viewed in the direction of arrows 3-3, FIG. 2;
- FIG. 4 diagrammatically illustrates a stepping switch
- FIG. 5 is a longitudinal section through an alternative form of loading station platen.
- FIG. 1 is a composite view of portions of FIGS. 2 and 15 of the copending application referred to with certain modifications to be subsequently described, its purpose being to illustrate the general organization with which the invention is associated. Briefly, this comprises accumulator station 28 on which a pattern is formed, a loading station 30 which includes link connected rolls 80, forming a movable curtain, and an elevator having a pallet supporting platform 93 which may be raised or lowered by a hydraulic ram under control of pump P, valves V V and solenoid valve actuators S S the fore going reference characters, except for S S corresponding to those of the copending application.
- the mode of operation is the same, also, to the extent that a pattern is formed on the accumulator station, is then transferred to the loading station where it may optionally be laterally compacted, after which the curtain translates, permitting the pattern to drop onto pallet p, disposed on the top of the elevator, the elevator generally descending incrementally as the patterns are stacked thereon. While there is a general incremental descent of the elevator, as just described, it also has a powered upward movement between the incremental descents for compacting a pattern disposed on same, as will more fully appear, which function is not described in the copending application.
- idler rolls 80 are connected at their ends to chains 11 which move synchronously under power, the lower runs of the chains being guided along guides 13, also employed in the copending disclosure.
- One of the modifications includes bars 15 disposed above each chain which are supported by studs 17 and angle brackets 19 which are vertically adjustable with respect to fixed frame 21, springs 23 being disposed between the brackets and bar. The resilient force exerted on the bar may be adjusted by moving the brackets vertically, as permitted by slots 25, and the setting of stop screws 27, after which they may be locked by clamp screws 29.
- a nut 31 is provided on each stud to position the bar a slight clearance distance above the chain so that the chain does not engage the bar when it is in motion.
- One or more micro-switches 33 are disposed adjacent the bar which are engaged by same when it moves to a certain position as will be hereinafter set forth. If more than one switch is employed the switches are preferably wired in series so that the last switch actuated establishes an electrical circuit.
- valve V When the bars operate the micro-switch or switches 33 a signal is established that a predetermined compacting force on the pattern has been attained and in response to this signal valve V is closed allowing the force to be maintained for a desired interval of time, after which valve V is opened to permit the elevator to descend a distance sufficient to lower the top pattern on same out of engagement with the curtain so that it may again be actuated to open position when the next pattern is to be dropped onto the now compacted top pattern on the elevator. Normally, this interval will be until a signal is received that a pattern formed on the accumulator station is ready for transfer to the loading station curtain, and as will be apparent, the curtain rolls should be free to rotate during this transfer or, as otherwise stated, compaction should cease somewhat before the transfer.
- the top of loading station 30 is formed as a curtain comprising side chains and parallel rolls connected to the chains which may be characterized as a translatable wall.
- the translatable will be of a form other than a roller curtain; for example, it may be of the form as shown in FIG. 10 of the application referred to and FIG. 5 of the present application, wherein it is formed as a rigid platen 114 having parallel upper and lower faces, the platen being translatable rectilinearly between two positions and without movement between lower and upper flights as in the roller curtain, first described.
- c. means for lowering the elevator to a position such that the pattern is disposed beneath the lower plane of the wall
- switching means operable in response to predetermined pressure on said members for terminating increase in compaction pressure, whereby compaction pressure may be limited to a desired value.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Warehouses Or Storage Devices (AREA)
Abstract
Description
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US86197969A | 1969-09-29 | 1969-09-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3698572A true US3698572A (en) | 1972-10-17 |
Family
ID=25337282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US861979A Expired - Lifetime US3698572A (en) | 1969-09-29 | 1969-09-29 | Bag compactor for conveying apparatus |
Country Status (1)
Country | Link |
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US (1) | US3698572A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3905488A (en) * | 1974-03-29 | 1975-09-16 | Schlitz Brewing Co J | Apron construction for a pallet loader |
US3912253A (en) * | 1973-10-23 | 1975-10-14 | David J Jarman | Entry and exit stacking system |
US3941048A (en) * | 1974-07-19 | 1976-03-02 | Okura Yusoki Kabushiki Kaisha | Apparatus for loading goods on a pallet |
US3986621A (en) * | 1975-10-21 | 1976-10-19 | Simplimatic Engineering Co. | Flap sensor and hoist position control for palletizer |
US4022334A (en) * | 1975-06-26 | 1977-05-10 | Firma Fordertechnik Hamburg Harry Lassig | Apparatus for stacking sacks onto pallets |
US4067456A (en) * | 1975-12-05 | 1978-01-10 | Columbia Machine, Inc. | Apparatus for arranging and stacking nonrigid articles |
US4132321A (en) * | 1977-05-09 | 1979-01-02 | Economation, Inc. | Palletizer with controlled stack density |
WO1980000829A1 (en) * | 1978-10-25 | 1980-05-01 | Master Conveyor Corp | Bag handling apparatus |
US4500001A (en) * | 1983-11-25 | 1985-02-19 | Daniels Frank J | Palletizing process and a product of that process |
US4813321A (en) * | 1987-06-05 | 1989-03-21 | Powers Chemco, Inc. | Film transport mechanism |
US20100014953A1 (en) * | 2005-06-17 | 2010-01-21 | Kpl Packaging S.P.A. | Method and Apparatus for the Formation and Discharge of Ordered Groups of Products, in Particular Rolls of Paper |
-
1969
- 1969-09-29 US US861979A patent/US3698572A/en not_active Expired - Lifetime
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3912253A (en) * | 1973-10-23 | 1975-10-14 | David J Jarman | Entry and exit stacking system |
US3905488A (en) * | 1974-03-29 | 1975-09-16 | Schlitz Brewing Co J | Apron construction for a pallet loader |
US3941048A (en) * | 1974-07-19 | 1976-03-02 | Okura Yusoki Kabushiki Kaisha | Apparatus for loading goods on a pallet |
US4022334A (en) * | 1975-06-26 | 1977-05-10 | Firma Fordertechnik Hamburg Harry Lassig | Apparatus for stacking sacks onto pallets |
US3986621A (en) * | 1975-10-21 | 1976-10-19 | Simplimatic Engineering Co. | Flap sensor and hoist position control for palletizer |
US4067456A (en) * | 1975-12-05 | 1978-01-10 | Columbia Machine, Inc. | Apparatus for arranging and stacking nonrigid articles |
US4132321A (en) * | 1977-05-09 | 1979-01-02 | Economation, Inc. | Palletizer with controlled stack density |
WO1980000829A1 (en) * | 1978-10-25 | 1980-05-01 | Master Conveyor Corp | Bag handling apparatus |
US4271755A (en) * | 1978-10-25 | 1981-06-09 | Master Conveyor Corporation | Bag handling apparatus |
US4500001A (en) * | 1983-11-25 | 1985-02-19 | Daniels Frank J | Palletizing process and a product of that process |
US4813321A (en) * | 1987-06-05 | 1989-03-21 | Powers Chemco, Inc. | Film transport mechanism |
US20100014953A1 (en) * | 2005-06-17 | 2010-01-21 | Kpl Packaging S.P.A. | Method and Apparatus for the Formation and Discharge of Ordered Groups of Products, in Particular Rolls of Paper |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CHAMPION INTERNATIONAL CORPORATION Free format text: MERGER;ASSIGNOR:ST. REGIS CORPORATION 1/28/85;REEL/FRAME:004679/0807 Effective date: 19850128 Owner name: STONE BROWN PAPER, INC., A CORP. OF DE. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CHAMPION INTERNATIONAL CORPORATION, A CORP.OF N.Y.;REEL/FRAME:004680/0410 Effective date: 19860707 |
|
AS | Assignment |
Owner name: STONE CONTAINER CORPORATION Free format text: MERGER;ASSIGNORS:STONE CONTAINER CORPORATION, A CORP. OF IL, (MERGED INTO);S.C.C. MERGER CORPORATION, A CORP. OF DE, (CHANGED TO);REEL/FRAME:004893/0153 Effective date: 19870515 Owner name: STONE CONTAINER CORPORATION Free format text: MERGER;ASSIGNOR:STONE BROWN PAPERS, INC., A DE CORP., (MERGED INTO);REEL/FRAME:004893/0167 Effective date: 19861222 |