US2080298A - Filling machine - Google Patents

Description

May 1l, 1937. R. B. BAGBY FILLING MACHINE original Filed sepi. so, 1952 Patented May 11, 1937 UNITED STATES PATENT OFFICE N Divided and this application February 6, 1936, Serial No. 62,581

4 Claims.

My invention relates to machines for filling containers with viscous materials such as ice cream, cheese, salad dressing, etc., and particularly to details of a multi-cylinder machine having novel features of improvement. This application is a division of my copending application, Pat. No. 2,032,163, filed September 30, 1932.

An object of my invention is to provide a lling machine adapted to simultaneously deliver two kinds or colors of materials to a single container and to segregate such materials until actually delivered to the container.

A further object is to provide a multiple cylinder machine o1 the character described having the capacity for ready removal of all of the parts that contact the material being handled to enable cleaning thereof.

l The invention will be more readily understood by reference to the accompanying drawing, in which;

Fig. 1 is a plan view of a machine constructed in accordance with my invention;

Fig. 2 is an end View thereof;

Fig. 3 is a sectional view on the line 3-3 of Fig. 2, and; I-

Fig. 4 is an enlarged perspective View of the illling nozzle.

In the accompanying drawing I have shown a base I on which the parts of the machine about 3D to be described are mounted. For receiving a quantity of the material to be handled, a hopper I I is provided and extending diametrically thereacross is a partition I2 dividing the hopper into independent sections. At the discharge end of 35 the hopper is a casting I3, which is bolted onto overhanging arms at one end of the member I4. Secured to the underside of the casting I3 is'a valve housing I5 having an oscillatory j valve member I6 mounted in a bore therein. The 40 valve member I6 has tworecesses such as I1 therein. The valve member I6 has trunnions at opposite ends thereof, one of which extends through a cover plate I8 and has an arm I6 connected thereto. An opening 20, Fig. 3, is pro- 45 videdin the valvehousing through which communication is established between the opening and the recesses I1. On. the side of the valve housing opposite the inlet ZI is an outlet 22. Secured to the underside of the valve housing 50 I5 is a filling tube T and this tube communicates with the outlet 22. A partition 23 divides the opening 23 into two parts and this partition is aligned with the partition I2 in the hopper II. A partition 24 in the inlet 2| includes a rounded 55 edge embracing the valve member I6 and this Apartition is aligned with the partition 23. A

partition 25 divides the outlet 22 into two parts and a partition 26 divides the filling tube T into two parts. An inturned lip 21is provided at the lower end of the lling tube T and the cor- 5 ners of the partition 26 are cut away as indicated at 28 so that the partition may rest von the lip 21.

It ismanifest that the separated chambers `in the various parts are isolated from each other and consequently when diiierent materials are introl0 duced into the hopper Il, these materials may be independently'withdrawn from the separate compartments and independently discharged through the lling tube T. The foregoing arrangement enables me to fill containers with 15 diiierent substances at the same time and if the viscosity `of the substances is lsufficient to prevent free owing thereof, the materials are segregated in the container.

In order to independently withdraw the mate- 0 rials from the separate compartments in the hopper II, I provide` independent cylinders 29 and 30 which are screw-threaded into the side of the valve housing in substantially right-angular relationship with the inlet 2| and the outlet 22, 25 independent openings such as 3l being provided in alignment with the cylinders `26 and 30. 'I'he base I0 includes an upstanding portion and projecting from the upper end `thereof parallel to the base are two rods 32 and 33. Sleeves 34 and 0 are respectively slidable along the rods 32 and 33 and are interconnected by a rod 36 rotatable in bearings providedin the sleeves 34 and 35. Piston rods 31 and 38 extend between the rod 36 and pistons such as 39 respectively re- 3,. ciprocal in the cylinders` 29 and 30. One end of a pitman 4i! is rotatively connected to the rod "36, intermediate the piston rods 31 and 38, and the end of thepitman opposite that connected to the rod 36 is enlarged and has an opening 4I 40 therein. A screw 42 extends into the opening 4I` from the free end of the pitman and has a lock nut 43 thereonA to retain it in position. A stud 44 extends'through the opening 4| and is connected to the disk 45 fast on the shaft 46. 45 The shaft 46 is journaled in bearings provided in a gear case 41 in which gear case a suitable speed reducing mechanism is provided which is connected to a shaft of the motor 33. When the motor 48 is set in operation, the shaft 46 is ro- 50` a track cam 49 is provided which is integral with the disk 45, Fig. 1. Through the medium of suitable mechanism 50 and the connecting rod 5|, movement is transmitted tol the arm I9 for rotating the valve in timed relation.

'Ihe parts are so timed that when the pistons are at the inner ends of the cylinders 29 and 30 and during the lost motion subsequent to movement of the stud 44 through dead center position adjacent the cylinders, the track cam causes the valve member to be oscillated so as to position the recesses l1 in the full line position shown in Fig. 3 and at the end of the lost motion the stud 44 engages the inner end of the screw 42 and consequently the pistons are caused to move rearwardly through the cylinders to withdraw material from the individual compartments in the hopper and this material passes intov the cylinders. During the lost movement subsequent to movement of the stud 44 through dead center position remote from the cylinders, the trackcam 49 causes the valve member I6 to so move .that the recesses I1 are arranged in the broken line position of Fig. 3 and at the end of the lost motion, the pistons move forwardly through the cylinders and, expel the material from the cylinders whereupon the material. passes through the lling tube into-a container positioned therebelow. It is essential that the partition 26 be provided in the filling tube for otherwise the materials would intermingle ywhile passing therethrough and segregation thereof would be impossible, It is'to be understood that the dividing partitions may be omitted and that the machine may be used to ll but one substance, and it may so be used when the partitions are employed. Furthermore, the divisions and number of cylinders. and pistons may be increased Without departing from the purview of` the invention.

It ls manifest from the foregoing description that I have provided a :lilling machine wherein a predetermined quantity of material may be withdrawn from a supply thereof and introduced into a chamber. The machine includes alling tube which insures complete. lling of the containers. and which prevents waste of the material. Moreover, the valve controlling communicationY between the cylinders and the supply and discharge devices remain entirely open during the movement of the pistons through the cylinders and consequently there is no restricted passage during the last portion of themovement of the pistons. in opposite directions. Furthermore, the device is so arrangedfthat the pistons arel always returnedV to forward position but by arranging adjustable means in different positions, the amount of rearward movement of the pistons and consequently theV amount of material withdrawn from. the storage devices may be expeditiously varied.

It will be seen that. by removal of the end plate I8, ther rotary valve. may readily be displaced endwise and' cleaned. In order to clean the cylinders and pistons, the cylinders are unscrewed from the valve body, as best shown in Fig. 3, and when so disconnected, are slid rearwardly until free from. the valve casting and the hopper and are then swung into the dotted line position of Fig 3 whereupon the cylinders may be slid endwise from engagement with the pistons and both the cylinders and pistons may be thoroughly cleaned. This provides a quick and easy method of removing and replacing the cylinders, an operation that should be performed at frequent intervals.

I claim:

1. In a filling machine, a valve body having valve means therein for controlling discharge from said machine, said valve body having at least two spaced outlet openings therein with a web therebetween, and means including a tube providing a discharge passage leading from said outlet opening, and a plate mounted in said tube to extend thereacross and longitudinally therethrough and aligned with said web, whereby distinguished substances flowing through said outlet openings are kept segregated during' ow thereof through said tube.

2. In a filling machine, a valve body having valve means therein and provided with at least two spaced outlet openings, a pair of cylinders in separable engagement with said valve body, pistons in said cylinders, and rods for the pistons,

a cross head. engaging said rods, means for eiTecting. reciprocation of said cross head, the rods being mounted for oscillation on the cross head thereby permitting said pistons and associated cylinders when they are disengaged from the valve body, to be oscillated into a position in which the cylinders may be separated from the pistons.

3. In combination, a valve body, a valve therein having two passages, said valve body having a threaded opening in communication with each of said passages, cylinders having screw threaded ends adapted to be engaged in said openings, a cross head including a rotatable sha-ft, rods connecting said pistons to said shaft, a pitman also connected to said shaft, the arrangement being such that the cylinders may be disengaged from the valve body then oscillated with said pistons and rods into a position in which the cylinders may be disengaged from the pistons.

4. In combination, a valve body and a valve therein, said valve body and valve having a plurality of registering passages, a plurality of cylinders readily removably connected to said valve 4body and registering with said passages, pistons in said cylinders, a cross head including a rotatable member, means for reciprocating said cross head, piston rods connecting the pistons to said rotatable member, the arrangement being such that said cylinders may be disengaged from the valve body and swung with the pistons to a position where the cylinders and pistons may readily be separated.

RALPH B. BAGBY.v

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