Abstract:
An improved packing device is disclosed which features an upwardly biased bag table for receiving a stack of plastic bags. A press member holds down the uppermost of the stack of bags at its mouth end. A pickup device is brought into engagement with the upper surface of the uppermost bag of the stack as the pressure of the uppermost bag against the press member is momentarily reduced, so that the pickup member is enabled to pull out the top surface of the bag from under the press member. The lower surface of the uppermost bag is then retained by the press member so that a blower supplying air to the end of the mouth of the bag to open it fully does not cause the bag to be blown away.
Abstract:
An automatic valve bag placer is disclosed which is constructed to sequentially remove valve bags from a bag magazine, manipulate the end flap of the bag for opening, open the valve and place the same on a fill spigot. An improved bag magazine and feeding assembly in which a plurality of trays are mounted on the elevator and feed stacks of limited number of bags onto a pick-off support structure ensures that bags are picked off one by one. The bag is oriented by a horizontal and then a vertical conveyor to a near vertical orientation, which orientation is retained thereafter until the bag is placed on the fill spigot. A pair of carriages and associated clamping means first pass the bag through a deflector assembly to orient the valve for opening, and then, after opening, the second carriage carries the bag to and inserts the same over the fill spigot.
Abstract:
An automatic bagging apparatus for automatically packing articles into a comprises a horizontally movable tray assembly operable to transport and insert the articles towards the bag and a loader assembly simultaneously movable together with the tray assembly during the loading of the articles into the bag. When the loader assembly is to be retracted leaving the articles inside the bag, the loader assembly starts its return movement independently of and subsequent to the return of the tray assembly. The bag is, after having been fed from at least one bag box to a bag receptacle, positioned frontwardly of the tray assembly and is completely opened by the application of at least one blow of compressed air in to the bag subsequent to the opening of the mouth of the bag. The loading of the articles into the bag is initiated after the bag has been so completely opened. The loaded bag is then erected by tilting it downwards about the point of pivot located adjacent the mouth of the bag and then pivoting the same upwards about the point of pivot located adjacent the bottom thereof.
Abstract:
A bag support and dispensing apparatus including a sleeve that is passed through aligned apertures in a stack of bags to support the bags. A collar at the back end of the sleeve is detachably engaged with a support member. The forward end of the sleeve has a flange that is dimensioned to readily pass through an enlarged aperture in the top portion of the front wall of a bag when the front wall of the bag is pulled in a forward direction. The flange is also dimensioned to resist passing through a smaller aperture in the top portion of the back wall of the bag to allow the bag to be held in an open position for receiving articles. A loaded bag is disengaged from the sleeve by pulling the bag in a forward direction with sufficient force to distend the smaller rear aperture so that the flange passes through the smaller aperture to release the back wall of the loaded bag. The sleeve is disengaged from the support member after all of the bags have been removed and thereafter a new stack of bags is slipped over the sleeve and the sleeve is re-engaged with the support member.
Abstract:
A bag tube feeder has an intermittently operated conveyor supporting a row of aligned stacks of bag tubes with a plurality of movable suction cups positioned over an outfeed station in which a stack of bag tubes is positioned. A pair of pneumatic cylinders lowers the suction cups to engage the uppermost bag tube, then lift the bag tube and a pneumatic cylinder swings the bag tube into the nip of a roller and an outfeed conveyor belt which takes the bag tube to a discharge location. A photo-electric sensor senses lowering of the stack of bag tubes in the outfeed station to automatically actuate a pneumatic cylinder arrangement for lifting the discharge end of the conveyor to maintain the top of the stack in a desired position. A mechanical sensor senses the depletion of the stack in the outfeed station to initiate actuation of the stack infeed conveyor to move the next adjacent stack into the outfeed station automatically.
Abstract:
Flexible plastic valve bags having a valve opening spaced from an edge of the bag are placed on filling spouts by first advancing the bag towards a filling spout on a carriage, and means are provided for blocking the communication of the valve opening with the body of the bag and means are provided for blowing open and billowing the valve opening of the bag while it is being moved towards the spout, and the blown-open valve is in direct alignment with the spout. Another embodiment provides for the location and placing of bags on at least two spouts by mounting the carriage on a lateral traveller such that when one bag is placed on a first spout, the traveller and carriage will be activated to move into alignment with a second spout.
Abstract:
A device for accumulating and supplying lengths of material in sheet form or in cuttings, such as, for example, labels, adhesive stamps, revenue stamps, coupons and cuttings of various shapes, etcetera, to be used in wrapping machines in conjunction with a fixed container or vertical well-shaped cavity from the base of which the cuttings are removed so that they can be supplied to the wrapping units of a wrapping machine. This device consists of a cylindrical body which is rotatably supported around its vertical shaft above the well-shaped cavity and is provided with a plurality of peripheral compartments, each of which is able to contain a pile of cuttings. A plurality of movable supports is provided for supporting a given pile of cuttings at a point inside the compartments corresponding to where the base of the stack is located. The cylindrical body is caused to rotate in an intermittent fashion in such a way as to cause the compartments to halt, one at a time, in alignment with the aforementioned well-shaped cavity responsive to a photoelectric sensor sensitive to the level of the pile of cuttings in the inside of the wellshaped cavity. This allows the subsequent transfer of the cuttings from the compartments to the well-shaped cavity once a predetermined level has been reached inside the cavity.
Abstract:
A pair of cooperating, rotating conveying elements are located adjacent to a storage station in which the tubular containers are temporarily stored. The tubular blanks in the storage station are oriented normal to the feed axis of the conveyor with the center of each blank approximately aligned with the conveyor feed axis. A pair of coaxial feeding blades located in the plane of the feed axis extend into the open ends of the blank. The blank when in the storage station is oriented with its open ends spaced along the common axis of the feeding blades. In operation, the feeding blades are moved centrally on their common axis so that their pointed ends extend almost to the center of the tube. The blades are then moved along the conveyor feed axis until the score line of one corner of the blank is driven into the nip of the conveyor. The blades then are raised to their original position and moved apart along their common axis until their tips are withdrawn far enough to clear aligned portions of the blank.