US2210456A - Apparatus for filling containers - Google Patents

Description

g- 1940. B. A. E. JOHNSON APPARATUS FOR FILLING CONTAiNERS Filed Nov. 10, 19:57

5 Sheets-Sheet 1 ill/Ill!!! IIII/f/ll Aug. 6, 1940. B. A. E. JOHNSON APPARATUS FOR FILLING CONTAINERS Filed Nov. 10, 1937 3 Sheets-Sheet 2 I 3 .w a M 3/ In" i .0. I III llllllllllllllllllllllJl I 9 8 7 N 0/0 M I 5 2/, 2 O I] E .00.; o H- H. I d B 4.2 I 3 5 v f 2 a W a a a z 0 3 4 6 Aug. 6, 1940.

B. A. E. JOHNSON APPARATUS FOR FILLING CONTAINERS Filed Nov. 10, 1937 3 SheetsSheet 3 ELGJ mull u CL (5%wbm/ j-ww uA/i/ v Patented Aug. 6, 1940 1 PAT NT OFFICE,

I 2,210,455 APPARATUS FOR FILLING CONTAINERS Bror Anders EmilJohnson, Alsten, Sweden, as-

signor to Aktiebolaget Gerh. Arehns Meka-niska Verkstad, Stockholm, Sweden, a joint-stock company of Sweden Application November 10, 1937, Serial No. 173,921

In Sweden November 14, 1936 This invention relates to anapparatus for filling containers, preferably for filling pots with a as paste, might have a comparatively solid consistency.

Referring to the drawings: Fig. 1 is an elevational view, partly in. section of an embodiment of the inve'ntionf 7 Y Y Fig. 2 is a vertical central lcngitudinalqsectiohal view, on an enlarged scale, of the mechanism'at the filling station of Fig. 1;." f J l. .Fig. 3 is an elevational view. partly insection, on an enlarged scale, of the mechanism..atthe first smoothing station of Fig. 1; I'- Fig. 4 is a view in the direction .of T.

Figs. 5, 7 and 8 illustrate somemodifieddetails of the apparatus embodying the "invention; 4

Fig. 6 illustrates a modified embodiment of the invention.

Referring more specifically to Figs. vi and 2,

the pots I are conveyed upon a table 3 stepwise in the direction of the arrow (Fig. '1) by means of a chain 2 having drivers 60. First, thepots are moved into position below a filling device l, then below a device 5 for smoothing the surface of supplied material, then possibly into position below still another device 6 for smoothing an possibly into still more such devices.

The filling device 4 has a filling pipe 1 the top end of which is connected to adevice for de-v wheel III which meshes with a stepwise or con tinuously driven gear wheel I I.- To-the lower end of the pipe I is secured an exchangeable nozzle ring I2 which has channels l3 A casing I I has a sleeve I5 that encloses the pipe I tightly. Fur thermore, the casing I4 has a discharge pipe I6 and an annular ring I'I adapted to act'as a-cover pot l.

for the pots to be filled. A narrow annular space is left between the ring I2 and the cover I'I. The cover I! has-an annular, elastic packing I9 that is adapted to tightly engage the rim of the is secured to the sleeve l5, and another ring 2| which has a peripheral groove 6| is fittedloosely upon the said sleeve I5. A contractile spring 22 is inserted between the casing I4 and the ring 2|.- Anarm I8 straddles the ring 2| and "is secured to the upper end of a sleeve. which is mounted loosely on a spindle 23 that is secured to a table 33 that forms part of theframe of the apparatus. To the lowerend of the sleeve 24 is secured anotherarm 25 through which projects a spindle 26 that has an abutment 32 and carries a pot supporting plate 21. -A contractile spring 28 inserted between the plate 21. and the arm 25. A cam disc 29 is securedto a continuously revolving shaft 62 that is driven by a mechanism that also drives the. conveyor 2 and the pump for supplying paste to the pipe I. .The cam disc 29 is arrangedto move the spindle 26 and plate 21 upwards towards the pipe I and to lower said plate again- When the plate and-the pot resting thereon are being lowered, the tube I may be shaken. The tube I may be shaken by means of a lever 3| that is pivotally journalled on a shaft 63 and actuated by a cam disc 30 which is se cured to an intermittently revolving shaft 64. The shaft 64 is driven by means that is operably connected to the means for. driving the shaft 62, so that the shaft 64 is revolved when the spindle 26 is lowered.

When a pot I has been moved by the chain 2 0 mediary of the pot l without further compressing the spring 22. Thereby, the filling spout formed by the lower end of the pipe I and the ring I2 will be introduced into the pot, as shown in Fig. 2. Now the pump (not shown) will force a predetermined quantity of paste out of the pipe I simultaneously as the pipe I rotates. Then the plate 2'I,the,casing I4 and the pot I are lowered, whereby, under the influence of the spring 22, the packing of the cover llwill still engage the pot tightly. The paste that is forced into the pot is pressed outwardly and fills completely any cavity within same. During the filling, air is A ring 20 that serves as an abutment discharged from the pot through the narrow annular space between the ring l2 and the cover l1 as well as through the channels l3 in the ring. In order to ensure a complete and homogeneous filling of the pot, surplus paste may be forced into the pot through the pipe 1. In this case, at the end of the filling, paste will have been forced out of the pot through the channels l3 in the ring l2 and through the space between the ring. and the cover l1. At the end of the filling, the lower end of the ring l2 will be at a level with the lower face of the cover I1 and, simultaneously, the arm 25 will rest upon the table 33, and the carrier plate 21 will be at a level with the table 13 which is positioned at a slightly higher level than the table 3. The pot is still maintained clamped by spring pressure between the cover l1 and the plate 21. Then the conveyor chain 2 moves the filled pot aside, whereby the upper level of the paste supplied thereto is smoothed preliminarily by the cover H. The conveyor chain moves the filled pot aside from the plate 21 onto the table 13 and thereby the pot is introduced beneath a stationary plate 65 that prevents overturning of the pot when the latter is about to leave the cover l1. Thereafter, the spindle 26 is lowered slightly, so that the plate 21 is brought intoa level with the table 3. Thereby, the shoulder ring 20 is supported by the ring 2|, so that the cover l1 cannot be lowered further, but then sufficient space will be obtained between the cover I1 and the plate 21 to allow another pot to be introduced between them.

The filled pot is advanced further on the table 13 into a position upon a carrier plate 49 (Figs. 1 and 3) below the smoothing device 5. Said device has a smoothing plate 34 which is engaged tightly by two scraper plates 35 each of which is secured to an arm 35. The arms 36 are pivoted to a yoke 31 that is secured to a sleeve 39, and they are urged inwards against thejplate 34 by means of a tension spring 38 which interconnects them. As shown in Fig. 4, the bottom edge of the plate 34 has a contour that corresponds to the shape of the upper part of the pot. The plate 34 is secured to a spindle 40 that is movable longitudinally within the sleeve 39. A ring 4| is movable longitudinally upon the sleeve 39 and a pin 42 projects transversely through the ring 4| and two opposite longitudinal slots 43 in the sleeve as well as through the spindle 48, so that the ring 4| is secured to the spindle4il and so that said ring can move the spindle longitudinally within the sleeve 39. An arm 4 straddles the ring 4| and is secured to a turnably journalled rock shaft 45. The sleeve 39 which is axially supported by a bearing 46 has a small pinion.41 which meshes with a larger gear wheel that is secured to a shaft 66. The shaft 66 may be operably connected to the means for driving theconveyor.

chain 2 so as to be rotated intermittently in timed relation to the mechanism for driving. the con-v veyor and to the mechanism for elevating the pot and operating the rock shaft 45. The carrier plate 49 is mounted on a -spindle.61. which is mounted slidably in a sleeve 58. A contractile spring 69 is inserted into said sleeve and urges the plate 49, upwards, so that a pin 10, inserted transversely into the spindle 61, will rest on the sleeve 68 at the top of longitudinal slots 1| provided in the said sleeve. The mechanism for moving the plate 49 up and down has a curved disc so that the upper rim of the latter engages the plate 34 which is rotated relatively rapidly by means, of the gear 41, 48; The cam disc 12 holds the sleeve 68 for a predetermined interval at a predetermined height. When the pot is pressed against the plate 34 the spring 69 is contracted slightly. Then the arm 44 slowly lifts the revolving spindle 40 and plate 34, whereby the plate 49 ascends until the pin 10 hits the sleeve 68. The

arm 44 continues to lift the still revolving plate 34, so that the latter is slowly retracted from the pot and an even smoothing of the upper surface of paste is obtained. Thereafter, the cam disc 12 retracts the carrier plate 49, so that the pot is lowered into a level with the table 13, whereafter the conveyor 2 moves the pot aside. When the carrier plate 49 is lowered, the smoothing plate 34 is pulled upwards between the scraper plates 35 by the arm 44, so that paste adhering to the plate 34 will be removed therefrom and stick to the to the shaft 18 a rapid reciprocating movement over the bottom face of the plates 35 when the plate 34 has been lifted, so that its lower edge is at a level with the bottom surface of the plates 35. A rod BI is arranged to be moved up and down as well as to be reciprocated together with the plate 55. When the plate 55 has been moved over the bottom faces of the plates 35 and has obtained its end position at the receptacle the rod 8| will be moved slightly upwards, sothatthe plate 55 is pivoted about the pin 82 and engages the receptacle 8|], so that paste adheringto the plate 55 will be scraped off and dropped intothe receptacle 80. ,The upper end of the rod 8| forms the guide 16. a

In case a further device 6 is used to eventhe upper surface of the paste in the pot said device might suitably have a plate similar to the plate 34 but adapted to project somewhat deeper than the latter into the pot.

As shown in Fig. 5, also the cover I1 may have openings 54 for the discharge of air as well, as surplus material pressed into the pot. 'As shown in Figs. 7 and 8, the ring |2 may have longitudinal, exterior slots that serve to discharge air and material pressed in excess into the pot. lustrated in Fig. 6, the pot to be filled may be placed in an overturned position upon atable 50 that forms a cover which engages the pot tightly. and has openings 5| for discharging air andpossibly also paste in excess. forms an end of the filling tube 1 receives and delivers portions of paste in the same manner as the other embodiment described above and serves as a support for the table 50, which may form an integral part of said spout. I

Reference is made to my divisional application Serial No. 339,991, for Machine for filling containers, filed June 11, 194:0,in which the combination between the features of the filling and smoothing apparatus disclosed herein is claimed.

I claim:

1. An apparatus, for filling containers having filling openings comprising a cover for tightly engaging the edges of said opening of a container,

said cover having an aperturefor discharging'air The filling spout that iii said cover having an opening for discharging air I and excess filling material from the container, a

filling spout extending through said cover, a container supporting member, means for holding the container between said cover and said supporting member with yielding pressure, and means for moving the container aside to remove it laterally from said cover while being subjected to the pressure of said yielding means. i

3. An apparatus for filling containers having filling openings comprising a cover for tightly engaging the edges of said opening of the container, said cover having an opening for discharging air and excess filling material from the container, a filling spout extending through said cover, a sup porting member, means for holding the container between said cover and said supporting member with yielding pressure, a guide arranged adjacent to and at a level with said cover, and means for moving the container aside to remove it laterally from said support and introducing itbelow said guide while being subjected to the pressure of said yielding means. 1 i

4. An apparatus. for filling containers having filling openings comprising a filling spout, and a cover for tightly engaging the edge of the filling opening of a container, the lower surface of said cover extending at said filling opening substantially transversely to said spout and having an opening for discharging air and filled material from said container, said filling spout being adapted to project into said cover, said filling spout and said cover being yieldingly, relatively displaceable longitudinally to'allow said spout to enter deeply into the container whilemaintaining tight engagement of said cover with said edge of said filling opening and also to maintain a tight engagement of said cover with said edge of said filling opening when said spout and said container are withdrawn from each other until the end of said spout has reached a position substantially at a level with said lower surface of said cover.

5. An apparatus for filling containers having filling openings comprising a filling spout, and a cover for tightly engaging the edge of the-filling opening of a container, the lower surface of said cover extending at said filling opening substantially transversely to said spout and having an opening for discharging air and filled material from said container, said filling spout being adapted to project into said cover, said filling spout and said cover being yieldingly relatively displaceable longitudinally to allow said spout to enter deeply into the container while maintaining tight engagement of said cover with said edge of said filling opening and also to maintain tight engagement of said cover with said edge of said filling opening when said spout and said container are withdrawn from each other until the end of said spout has reached a position substantially at a level with said lower surface of said cover, said filling spout having longitudinal exterior grooves forming outlets for air and filled material from the container.

6. An apparatus for filling containers having filling openings, comprising a filling spout, means for turning said spout and a container relatively,

and a' cover for tightly engaging the edge of the filling opening of a container, the lower surface of said cover extending at said filling opening substantiallytransversely to said spout and having an opening for discharging air and filled material fromsaid container, said filling spout being adapted to project into said cover, said filling spout and said cover being'yieldingly relatively displaceable longitudinally to allow said spout to enter deeply into the container while maintaining tight engagement of said cover with said edge of said filling opening and also to main tain tight engagement of said cover with said edge of said filling opening when said spout and said container are withdrawn, from each other until the end of said spout has reached a positionsubstantially at a level with saidlower surface of said cover.

'7. An apparatus for filling containers. having filling openings comprising a filling spout, a cover for tightly engaging the edge of the filling opening of a container, and means for shaking said spout and said cover longitudinally relatively to each other, the lower surface of said cover extending at said filling opening substantially transversely to said spout and having an openingfor discharging air and filled material from said container, said filling spout being adapted to project into said cover, said filling spout and said cover being yieldingly' relatively displaceable end of said spout has reached a position substan-,

tially at a level withsaid lower surface of said cover.

8. An apparatus for filling containers having filling openings comprising a filling spout, a cover for tightly engaging the edge of the filling opening of a container, the lower surface of said cover I extending at said filling opening substantially transversely to said spout and having an open-.

, ing for discharging air and filled material from said container, said filling spout being adapted to project into said cover, said filling spout and said cover being yieldingly relatively displaceable longitudinally to allow said spout to enter deeply into the container while maintaining tight engagement of said cover with said edge of said filling opening and also to maintain tight engagement of said cover with said edge of said filling opening when said spout and said container are withdrawn from each other until the end of said spout has reached a position substantially at a level with said lower surface of said cover, means for supporting the container, a guide positioned adjacent to said supporting means, and means for displacing the container laterally from its position between said cover and said supporting means, said guide serving to prevent tilting of 3O longitudinally to allow said spout to enter deeply ment of said cover with said edge of said filling transversely to said spout, said filling spout and said cover being yieldingly relatively displaceable longitudinally to allow said spout to enter deeply into the container while maintaining tight engagement of said cover with said edge of said filling opening and also to maintain tight engageopening when said spout and said container are withdrawn from each other until the end of said spout is substantially at a level with said lower surface of said cover.

10. An apparatus for filling containers having filling openings comprising a filling spout, and a cover for tightly engaging the edge of the filling opening of a container, said cover having an opening therein for discharging air and filled material from said container, a filling spout introduced in spaced relationship through said opening of said cover, the lower surface of said cover at said opening extending substantially transversely to said spout, said filling spout and said cover being yieldingly relatively displaceable longitudinally to allow said spout to enter deeply into the container while maintaining tight engagement of said cover with said edge of said filling opening and also to maintain tight engagement of said cover with said edge of said filling opening when said spout and said container are withdrawn from each other until the end of said spout is substantially at a level with said lower surface of said cover, said spout having at its end a lateral annular extension of substantially the same width as the width of said opening of said cover, said extension substantially closing said opening of said cover when the spout projects slightly beneath said cover.

11. An apparatus for filling containers having filling openings comprising a filling spout, and a cover for tightly engaging the edge of the filling opening of a container, said cover having an opening therein for discharging air and filled material from said container, a filling spout introduced in spaced relationship through said opening of said cover, the lower surface of said cover at said opening extending substantially transversely to said spout, said filling spout and said cover being yieldingly relatively displaceable longitudinally to allow said spout to enter deeply into the container while maintaining tight engagement of said cover with said edge of said filling opening and also to maintain tight engagement of said cover with said edge of said filling opening when said spout and said container are withdrawn from each other until the end of said spout is substantially at a level with said lower surface of said cover, said spout having at its end a lateral annular extension of substantially the same width as the width, of said opening of said cover, said extension substantially closing said opening of said cover when the spout projects slightly beneath said cover, said annular extension being tapered at its top end.

BROR ANDERS EZMTL JOHZNSON.

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