US1770470A - Filling machine - Google Patents

Description

July 15, 1930.

c. w. HARTMANN FILLING MACHINE Fjiled July '7, 1928 Penn patented .uly 15, 193() NiTEjD ,STATES CARL WILHELM HARTMANN, or LYNGBY, NEAR GOPENHAGEN,y DENMARK' 'FILLING MACHINE kApplication filed July 7, 1928, Serial No. 290,991, and. in Great Brtain'il'uly 15, 1927.-

Thisinvention relates to filling machines A in which the containers being filled, such as for inst-ance cartons or boxes, as well as conveying ducts theretol are carried round by a f' rotating part of the machine. n

The present invention is characterized in that the rotatably transported conveying ducts include arcuate gutters each concentric with the axis of rotation and inclined downwardly in circumferential direction towards a delivery pipe discharging into a sliding hopper, said gutters being filled from weighing devices arranged immediately above them. Y

1n order that my invention may be readily understood, a sheet of drawings is hereto appended illustrating a machine of practical form in accordance therewith. ln the drawings Fig. 1-is a vertical section through the machine.

Figs. 2 and 3 are horizontal sections on the lines 2 2 and 3 3 of Fig. 1 respectively.

Fig. 4 is a developed View of the cam 20 with broken lines a, b, c, cl corresponding in position with the same lines drawn in Fig. 3.

The stand l of the machine has a bowllike shape and supports in the centre a fixed vertical upstanding shaft 5 about which a sleeve 6 formed integral with a disc 7 constituting a compartmental platform is adapted to rotate. On the upper end of the shaft 5 is finally mounted Va cover 9 upon which a number of measuring or weighing devices ofk a known, preferably automatic kind, are mounted as indicated by 10. Fixed delivery pipes from these measuring or weighing devices are indicated by reference 11. The rotatable sleeve carries a number of circular and concentric gutters 12 situated under the respective discharge pipes 11, each being divided into two or more segmental gutter f portions 12o by cross walls 13. Oblique pipes 14 leading one from each gutter portion 12o and sloping downwardly and outwardly serve to convey the contents -of said gutter portions to hoppers 16 mounted to slide vertically upon the outside of a cylindrical wall 17 formed in conjunction with the sleeve 6. 50 Rollers 18 upon the hoppers are, due to the pressure upon said hoppers of springs 19, pressed into contact with an annular path 20 on the fixed stand bowl et, and constituted by the upper edge thereof, said path being formed with a raised portion or peak so that the hoppers during a part of each revolution of the rotary assembly, namely when said hoppers are passing the lower right quadrant of Fig. 3, become raised and then lowered so as to be drawn out of a box for instance the box 21g, and then again lowered into another box, for instance the box 21", the hoppers remaining in their lowered positions during the turning of the rotary assembly through the angle between the positions 21" and 21g.

The segmental gutters 12o are constructed with floor surfaces 22 and 23 which slope downwardly in circumferential direction in order to` lead the contents thereof, for example powder ordust, to the oblique pipes 14.

The top of therotating cylindrical wall 17 travels in a downwardly directed annular channel 17o formed integral with the vfixed cover 9. By, this means the gutters and the discharge pipes are enclosed dust-tight.

The empty boxes or the like 21 are carried to the machine by means of an endless transporter of any suitable kind, indicated at 24 in Fig. 3, and one after another are put upon the disc 7 by a plunger 25 or the like.

As will be seen from Figs. 2 and 3 the supply of the dust or powder to the boxes will commencein the position 21, when a particular segmental gutter 120 comes under the corresponding discharge pipe 11. The filling may last until near the position 21g i when the raising of the corresponding hopper commences, whereafter the filled box is removed by means of al tangential transporter indicated at 26 in Fig. 3.

rlhe filling of each box thus lasts for a comparatively long time ensuring of each measured orweighed dust or powder quantity duly performing its course.

It willbe seen that the circular and concentric gutters 12 constitute a plurality of arcuate gutters set 'at different radial dis tances from the centre of rotation. This special arrangement of gutters rotating together with the boxes to be filled allows a simultaneous filling of a considerable number of boxes in continuously progressing filling stagles. During the period in which one box or t e like is being filled a considerable number of empty boxes may be introduced one after another into the machine, the efficiency of which is consequently high.

I claim 1. A filling machine for filling powders, dusts and like materials into containers, comprising a rotating member having a plurality of arcuate gutters set at different radial distances from the centre of rotation and downwardly inclined in circumferential direction, stationary means for filling said gutters and located above them, means on the rOtating member for receiving and transportin thereon a plurality of containers to be fil ed, and delivery ducts on said rotating member arranged one for each gutter and leading awa from said gutters at the lowermost ends t ereof so as to convey the substance travelling down the gutters into the containers to be filled.

2. A filling machine for filling powders, dusts and like materials into containers, comprising a rotating member having a plurality of concentric arcuate gutters having 1nclined delivery ducts and downwardly inclined in circumferential direction towards Said delivery ducts, stationary means for filling said gutters and located above them, means on the rotating member for receiving and trans orting thereon a plurality of containers to e filled, means for feeding the containers to the rotating member and means for withdrawing same therefrom before a complete rotation has been performed, sliding ho pers on the delivery ends of the delivery ucts for conveying the substance discharged therefrom into the containers, and means for raising said hoppers from the containers durin that period of each rotation between the withdrawing of a filled container and the insertion of a fresh container.

3. A filling machine for filling powders, dusts and the like into containers, comprising a stand bowl, a vertical shaft upstanding from the stand bowl, a combined rotary container-filling and transporting assembly mounted to rotate on said shaft and comprising a compartmental container-carrying platform, sliding hoppers arranged one above each of the platform compartments to discharge into the containers carried therein, a sheave on each hopper, and concentrically arranged arcuate gutters having ducts which feed the hoppers and stationary feeding devices arranged above said gutters for feeding same, the hopper sheaves travelling on the upper rim of the stand bowl which is undulated in order to raise the ho pers during that period between the with rawing of a filled container and the insertion o'f a fresh container.

4. A filling machine for filling powders, dusts and the like into containers, comprising a stand bowl, a vertical shaft upstanding from the stand bowl, a combined rotary container-filling and transporting assembl comprising a sleeve surrounding said sha to rotate therearound, a lower compartmental container-carrying platform and an `upper cylindrical concentric head both rotating with the said sleeve, a pluralit of spring-pressed hoppers arranged one a ove each of the platform compartments and slidably mounted on the wall of the upper cylindrical head, said hoppers discharging into the containers, a sheave on each hopper, and concentrically arranged arcuate gutters within the cylindrical head having ducts which feed the hoppers, and feeding devices arranged above said gutters for feeding same, the hop er sheaves travelling on the up )er rim of t e stand .bowl which is undulat in order to raise the hoppers during that period of each revolution between the withdrawing of a filled container and the insertion of a fresh container.

CARL WILHELM HARTMANN.

Images