FR2787435A1 - Machine for filling bag in box containers has vertical frame with reservoirs for liquid and lever actuated dispensing valves - Google Patents

Abstract

The machine for filling bag in box containers has a vertical frame (2) with an angled table (3) above which are mounted one or more liquid containers (4) with outlet valves (15) controlled by a lever (5). A frame supports a plastic pouch for filling.

Description

The present invention relates to a filling machine with an exact volume

  flexible plastic bags with a liquid to be packaged and cardboard and packaging

said pockets.

  The filling of these plastic bags is usually done manually with a filling gun and weighing of the bag or by very complex machines supplied with electricity and compressed air for their operation. The object of the present invention is to simplify manual filling as well as the

cardboard from the filled pocket.

  It includes a metal frame or other materials;

  it is mounted on casters and is adjustable in height.

  The top of this frame has a table tilted forward, and above, a vertical wall located at the rear of said table. The tilted table receives the

plastic pocket to fill.

  The vertical wall is equipped with one or more vertical cylindrical tanks which are used to fill the pockets. To make this filling with precision, the tanks are equipped in the upper part with a tube smaller in diameter, in which there is a ball of the "table tennis" type which plays the role of float. This ball, during filling, floats up on the liquid and obstructs the venting of the

  tank, thus stopping the filling of the tank.

  The volume of the tank (s) is adjusted by sliding the seal support from the vent, so that this support is mounted to increase the volume and lowered to decrease the said volume. These adjustments can be made by pushing or pulled from threaded rods or by any other means ensuring a

  displacement of this vent seal support.

  These tanks are supplied, by gravity or by pump, by means of maneuvering valves or taps with one or more channels. These valves thus allow the filling of the tanks or their emptying into the

plastic pocket.

  The bag is held under the liquid outlet, between the two valves, by a sliding stirrup which receives the collar of the bag, either rear position pushed for filling, or front position pulled for capping

  from the pocket and its release for cardboard packaging.

  These valves or taps are controlled by means of angle gears and manipulation levers, namely: - high position: tank filling, - middle position: stop,

  - low position: emptying towards the pocket.

  Several operations of these levers will allow

  fill the pockets according to their capacities.

  The closure of the pocket by the stopper can be done, either manually by hand pressure, or by a lever device fixed on the rear panel which will allow gripping to remove it from the empty pocket and put it back for closing. pocket definitive

after filling.

  The inclined table can receive just below the liquid outlet a device in the form of a prism or pyramid in order to avoid the emulsion of the liquid to be conditioned, the fall of the latter will be absorbed by the

  slopes of this device avoiding foam.

  The inclined table can be provided with an oscillating plate with counterweight to absorb the fall of the liquid, this plate will tip as and when filling. According to particular embodiments, the whole machine can be automated such as: * transport of the empty or full cardboard by rollers or conveyor belts, * filling and emptying of the tanks by pneumatic or electromechanical automation, * exchange of the tanks filling with a

  volumeter or a controlled flow meter.

  The set can be mounted on a height-adjustable frame to be placed on the ground, with casters and feet

  adjustable for ground stability.

  This frame is then equipped with a sliding drawer where the packaging box is placed and the inclined table is

equipped with a hatch.

  During the filling of the tanks, the plastic pocket is obstructed by its cap and the placing in its box is carried out by sliding the hatch which is on the inclined table and under the pocket, thus making this pocket fall into its box located on its support.

sliding drawer.

  Once this operation has been carried out, the sliding drawer will be removed from the frame to allow the carton to close and a new empty carton to be put in place.

the rest of the work.

  We will better understand the purpose of this

  invention using the accompanying drawings.

  Figure 1 shows the whole machine composed of an inclined table (3) and a vertical wall (2) which receives the tanks (4), the volume adjustment devices (1), the manipulation levers (5), the valves (15), the liquid outlet (14), the sliding support bracket (6), the plastic pocket collar (13), the inlet pipes (7). This vertical wall (2) serves, at the rear, as a trunk for receiving the

handling of valves (15).

  2 shows a cardboard support (10) adjustable by a locking screw (11) on sliding tubes (9). The fixing of this support is by fitting

tubular (8).

  Figure 3 shows in section the top of a tank with the volume control device which comprises the upper body (16) of the tank with the tube (18) secured to the body, in which is a float (21) free vertically which will obstruct the air outlet (25) by pressing on the seal (22). This seal (22) is fixed on a sliding piston (20) which is positioned in height by a screw (23) which pushes and a screw (24) which pulls, these are supported by a fixed plug (19)

  A rod (26) prevents the float from falling.

  Figure 4 shows the assembly of a tank (4) with the upper part (16) and the lower part (17) provided with its outlet (27), the cylinder (4) sealed by seals (32). The assembly is held by tie rods (29). A plate (28) deflects the liquid during filling to

  avoid foaming the liquid.

  Figure 5 shows the plastic bag (13) in perspective and side view with its filling collar (31). Figure 6 shows a top view and rear view of the device located in the trunk of the vertical wall (2). The manipulation levers (5) enter the trunk (2) and actuate a set of angle gears (30) contained in a housing, this set of angle gears (30) ensure the rotation of the axes (33). The latter control the valves (15) for emptying and filling the tanks (4). On the same axes (33), are located at the rear of the polarizers (36) which prohibit the emptying of the tanks when the collar carrying the collar is not in place of the filling under the outlet (14) this, coming from abut on the safety pallet (34). The rear view of figure (6) shows the movement of the polarizers (36) and their

  action on the safety pallet.

  Figure 7 shows the collar support bracket (6) sliding in its guide (38). On the side of this support bracket (6), slides a retaining rod (37) blocking the

collar (31) of the pocket (13).

  FIG. 8 represents an accessory for recovering drops of liquid when the support bracket (6) is in the advanced position. A small receptacle (39) communicates with

  a pipe (40) for the evacuation of the last drops.

  FIG. 9 represents a base version (49) with feet (44) provided with rollers (46) and jacks (47). The inclined table (3) receives a hatch (41) operated by the button (42). The bottom of the base (49) is fitted with a sliding drawer (43) which can be operated by a button (45). Foldable shelves (48) supported by chains (49)

  are oriented on the side of the frame (49).

  Figure 10 shows in section (accessory) a device to remove the cap on the new plastic bag and reinsert it for final closure on the full bag. It is composed of a bell (52), two hooks (59) pivoting in slots (59) and held in place by an O-ring spring (54). The opening of these hooks is done by the axis (50) which slides in the guide tube (51) secured to the bell (52) by a screw (55), a pin (65) limits the movement of the axis (50). A return spring (56) is in abutment on a ring (57) fixed by a pin (58). The axis (50) can be maneuvered in its vertical movement by a lever, jack,

or maneuvering screw.

  Figure 11 shows in three views the shape (68) of the prism or pyramid to avoid the emulsion of the liquid

during filling.

  Figure 12 shows in two views a device which can replace the prism of Figure 11. It is composed of a swash plate (61) and a counterweight (62). This device is fixed below the outlet of

  liquid (14) and is fixed on the inclined table (3).

  FIG. 13 shows a key (63) at the end of the plugging and the plug (64) to be placed. The two tabs (66) allow levering for complete closure and the recess (67) receives the top of the plug. According to a variant not shown, an addition of neutral gases could be made in the plastic bag (13) before filling to expel the air contained therein, by a

  hose assembly, regulator valve, neutral gas cylinder.

  Figure 14 shows a side view and in section the operation of the key (63) and its positioning on the plug (64) in its housing (67) and its grip under the two tabs (66) under the receptacle (39) fixed on the bracket (6). According to other variants not illustrated, the machine can fill other flexible or rigid containers and of any shape without thereby departing from the scope of the

present invention.

  The machine according to the invention is particularly intended for filling flexible containers and putting them into cardboard or rigid containers, with the assurance that the

  volume of liquid contained is correct.

Claims (12)

Claims   1) Machine for filling flexible bags with an exactly determined volume and putting them in cardboard boxes characterized in that it comprises one or more reservoirs (4) adjustable in volume by piston (20) and screws (23) and (24).   2) Machine according to claim 1 characterized in that the volume of the tanks (4) is obtained by a float (21) which closes the air outlet (25) in   based on the adjustable piston (20).   3) Machine according to claim 1 characterized in that the plastic bags (13) are held by a sliding bracket (6) for the filling position and the stopper position.   4) Machine according to claim 3 characterized in that the table (3) supporting the pocket is slightly inclined to help empty the air or neutral gas from this pocket. 5) Machine according to claim 1 characterized in that the front of the inclined table (3) receives a support (10) of cardboard packaging fixed by interlocking with the branches (8).   6) Machine according to claim 1 characterized by the control lever (s) (5) actuated for filling the tanks (4) and emptying them into the plastic pocket (13).   7) Machine according to claim 1 characterized by one or more sectors (36) pivoting on the axis of the valves (33) preventing the emptying of the tanks (4) if the stirrup (6) pocket support (13) is not in place, stumbling on the   wedge (34) integral with the axis (35) of the stirrup (6).   8) Machine according to claim 1 characterized in that the assembly can be mounted on a support (49) to be placed on the ground with two shelves (48) side and removable. 9) Machine according to claim 1 characterized in that the support (49) allows to equip the inclined table (3) with a hatch (41) for sliding the pocket (13)   filled in a carton located on the sliding drawer (43).   10) Machine according to claim 1 characterized in that the inclined table (3) can receive a pyramidal block (68) in order to avoid the emulsion of the liquid to be packaged. 11) Machine according to claim 1 characterized in that the rear panel (2) can receive in the center a drain and plugging hub made up of the assembly (fig. 10).   12) Machine according to claim 1 characterized in that the stirrup (6) receives a receptacle (39) to avoid   dripping after filling with plastic bags (13).