DE2933675C2 - Machine for the continuous filling of tubes, especially for dough-like products - Google Patents

Description

Devices (A) for presetting the quantity delivery,

Means (B) for controlling the stroke of a filling nozzle (J) and

Devices with distributors (36) for controlling the removal

of the material to be dosed from a container (17) and for supplying a dosed portion to the corresponding filling nozzle (/ J includes that the quantity is dispensed by differentiating the vertical displacement path of two parallel and articulated sliding blocks (7, T) , with a first sliding block (7) is positively controlled by a central drive (9, 9 ') and a second sliding block (7'), which is articulated with it, moves a suction piston (5 ') that, in order to maintain the variable displacement path of the filling nozzles (/ ^ two each in the same vertical axis Slidable sliding blocks (21, 22) are provided, an upper, positively controlled sliding block (21) connecting a lower sliding block (22) via articulated arms (21 ', 22'), and that in each case the vertical distance between common articulation points (8 ", 23) two levers (8, 8 ') can be adjusted with respect to the guide axes of the sliding blocks (7,7', 21,22),

2. Machine according to claim 1, characterized in that the filling devices (A, B, C) each have the same number of devices and distributors

have in a structure which rotates around a central and fixed axis (3) that the filling device (A) for presetting the dose to be dispensed, the filling device (B) for controlling the stroke of the filling nozzles (J) and the device (C) the distributor (36) are each controllable via their own drive elements (9, 29, 44) which are firmly connected to the central axis (3), and that the control takes place synchronously with one another and along an angular displacement (WU ") .

3. Machine according to claim 1, characterized in that the angular displacement (U'-U ") for the filling of each tube carries about 140 ° and that on the process of filling a cleaning process for cleaning the filling nozzles (J) along an angular displacement (U "- U '") follows.

4. Machine according to claim 1, characterized in that the drive elements each consist of cams (9, 29, 44) and have plungers (9 ', 30, 45) which with respect to an associated table (A 1, Λ 2, Λ 3), on each of which a filling device (A, B, C) is arranged, displaceable and / or

are tiltable.

5. Machine according to claims 1 to 4, characterized in that the devices (A) for presetting the dose to be dispensed can be adjusted individually and jointly with one another.

6. Machine according to one of claims 1 to 5, characterized in that the common control of the device (A) for presetting the dose to be dispensed takes place via a motor (15) and a further chain (16), and that the further chain (16 ) via chain wheels (14) and a worm gear drive (12, 13) by means of a guide arm (10), the position of the articulation point (8 ") is determined

7. Machine according to claims 1 to 6, characterized in that the sliding blocks (21, 22) for controlling the stroke of the filling nozzles (J) are arranged on the same vertical displacement axis .

8. Machine according to claim 7, characterized in that one in the common articulation point (23) of the articulated arms (21 ', 22'), articulated further arm (24) via a worm control (25,25 ') and a handle (26) for Change of position of the articulation punki.es (23) can be actuated

9. Machine according to claims 7 and 8, characterized in that the lower sliding block (22) carries a rack (31) which extends radially outward via a gear (32) from which a lever (33) extends, and controls the stroke of the associated filling nozzle (J) via a rod (34)

10. Machine according to claim 9, characterized in that the approximately vertically arranged rod (34) has a compression spring (35) between a lower part (34 ') and an upper part (34 ").

11. Machine according to claims 1 to 10, characterized in that the distributor (36) has a line (43 ') which is associated with the chamber (5'") of the cylinder (5) arranged below it for conveying the predetermined dose to the associated Filling nozzle (J) is connected, and has a passage (43) for withdrawing the product from the container (17) arranged above the distributor, and that in the body (39) of the distributor (36) also a shaft (41) with two Piston (41 ', 41 ") for alternating control of the product from the container (17) to the associated filling nozzle (J) is longitudinally displaceable.

12. Machine according to claims 1 to 11, characterized characterized in that the shaft (41) arranged in the distributor body (39) so as to be longitudinally displaceable can be controlled by a cam part (44) fixedly arranged on the central axis (3) and that between the shaft (41) and the cam (44) are interposed with a longitudinally displaceable plunger (45) is, which can be set at an angle to disengage with respect to the distributor (36).

13. Machine according to claim 12, characterized in that the respective filling nozzle (J) is fed the dose ejected from the cylinder (5) via the distributor (36) via a line (48) made of stainless steel which allows a scissor-shaped displacement in a vertical plane .

The invention relates to a machine for continuously filling tubes, in particular for dough-like products, with a station for feeding the

3 4-

empty tubes to be filled, a station for insertion. Advantageously, in the invention Tubes in the associated gripper, one around a proper machine also ensures that during vertically arranged axis rotatable station for starting operation for all stations to fill at the same time The dose of the product can be changed through filling nozzles, one station Sealing the filled tubes and one in a 5 is enough that if there is a lower or upper level Level revolving chain that gives the tubes weight of the tubes that are being filled at a distance from one station to andoren conveys the prescribed weight for all stations and

A machine designed in this way can be restored from the DE immediately and at the same time

OS 15 86 032 known Advantageous embodiments and developments with the previously known machine

according to the mentioned DE-OS it is not possible, the io of the machine according to the invention are in the patent

Filling the tubes continuously, d. H. without any un- Proverbs 2 to 13 listed in detail these are

make interruption, since the filling of the tubes refinements and developments of the invention in

can only take place when a new Sam- connection with the description of an execution

tape, from which the tubes are to be separated, explained in the example

The machine is used It is also not readily possible. In the drawings, an exemplary embodiment is possible, with the well-known machine tubes placed underneath. It shows

different volume to fill without significant F i g. 1 is a schematic plan view of the distribution

Changes to the machine are made to the various groups that make up the system,

would have to. F i g. FIG. 2 is a schematic front elevational view of FIG

From US-PS 21 03 817 it is known to a 20 system, in particular the Tubendosier- and füllvorrich-

stationary arranged filling station various operations, rotated 90 ° forwards,

functions of tube filling by centrally summarized F i g. 3 is a partial front view in elevation of a rear

te cams to control, which changes gel device for dosing the product,

at the filling line delivery by changing course F i g. 4 the control of the air flow through the re-

venscheiben can be made. A gel device according to FIG. 3 with installed cover,

position during continuous operation of the FIG. 5 the control of the guide arm according to FIG. 4th

disclosed device is not possible. on a larger scale,

From DE-OS 2012 131 a device is shown. 6 is a schematic representation of the position of the

knows where a certain amount of a product is placed on guide arm,

brought a wrapping or packaging material and 30 F i g. 7 shows a schematic representation of a detail

then this packaging material around the product - the automatic control of the guide arm and

is folded over. A filling process in which the exact dose to be dispensed

F i g. 8 is a schematic front view in elevation of a

in this publication not disclosed ner control device for the stroke of the filling nozzles,

The object of the present invention is to provide a Ma- 35 F i g. 9 shows an arrangement of spaced elements according to FIG

to create a machine of the type described at the outset, FIG. 8 with cover,

with the help of which it is possible to have tubes of different fi g. 10 is a vertical section through U'-OU " of FIG

Fill sizes without the need for time-consuming and cumbersome F i g. 1 of the valve group,

intensive preliminary changes to the machine required- F i g. 10a a vertical section of the reservoir

are. 40 ters for the product to be dosed,

To solve the problem posed, a generic F i g. 11 is a plan view of a gripper and the

contemporary machine characterized in that the schematic representation of its assembly in a guide

well-known rotatable filling station one above the other,

gender sequence devices from presetting Fig. 11a is a partial view of the floor plan from below

the quantity delivery, devices for controlling the 45 derFig. 11

Hubs of a filling nozzle and devices with distribution Fig. 12 a schematic representation of the power supply

learning to control the removal of the dispensed drove to the rotating group of the plant.

Material from a container and for feeding in a die in FIG. 1 machine shown comprises in the w

dosed portion to the corresponding filling nozzle in the order of the operations:

understands that the quantity output by the differentiation 50

the vertical displacement path of two parallel and - one group I for feeding the tubes,

articulated sliding blocks takes place, with one - a group II for placing the tubes in grippers

ster sliding block by a central drive forcibly or receiving and holding devices for

controls is and a second hereby articulated each tube,

Slide block moves a suction piston that for Einhai- 55 - a group III for the orientation of the tubes, whereby

the variable displacement travel of the filling nozzle - each tube rotates around its own axis.

sen seduces two in the same vertical axis in order to bring them into the correct position,

Slidable sliding blocks are provided, with a top - a rotatable group IV, which is perpendicular to a

rer, positively controlled sliding block is mounted on a lower sliding axis, for dosing and filling the

stone connects via articulated arms, and that each of the 60 tubes, with subsequent cleaning of the filling nozzle

vertical distance between common articulation points of two se,

Lever in relation to the guide axes of the sliding blocks - a group V for closing the end of the tube,
is adjustable.

The inventive construction of the machine ^r Vie will be described below in more detail, ne, the object is in an excellent manner 65, the Group IV has solved besides the above-mentioned function. The loading of the tubes can also continuously carry out the task of precisely following the groups I, II, 111 and V, that is to say without any interruption and in fact em synchronism with one another, even when tubes of different sizes are filled with the interposition of an endless chain that white

ter is described in more detail below and which also transports the tubes by means of the gripper.

The groups I to V mentioned are mounted on a rigid frame 1 which comprises a lower part 1 'and an upper part 1 "which are spaced apart by uprights Γ" (FIG. 2). The rotatable group IV is arranged in the frame with a perpendicular longitudinal axis to the frame base. The main motor 2 is mounted on the lower part Γ, which sets the group IV into rotation via a reduction gear with an adjustable speed of rotation. The entire group IV rotates around a hollow and fixed central axis 3 mounted on a base 3 'which is fastened to the lower part Γ. The central axis 3 carries the entire rotary group IV, which from bottom to top is essentially a sequence of four Forms overall devices A, B, C, D , each of which is evenly distributed in equal numbers on the circumferential zone of the base surfaces or circular tables A 1, A 2, A 3, A 4

A main chain 4 runs along and above the peripheral envelope curve of the frame 1, which is guided and supported by suitable guides G and is actuated by a gearwheel 4 'which is coaxial with group IV and firmly connected to it. The chain 4 controls a plurality of grippers P, which will be described below and which are distributed with a precalculated distance and corresponding angle, which each includes the individual devices A, B, C, D.

Group A consists of a predetermined number of voiumetric metering devices (eight metering points in the example shown), which are distributed and mounted on the first rotary table A i.

In order to be able to perform a dosage for each of the eight devices of the device A at the same time, which can be regulated individually and automatically, the invention provides means which are suitable for the amplitude of the stroke assigned to the piston for dispensing the dosed product into the tube change.

Each device of the device A (Fig. 3, 4) advantageously comprises a control of a piston cylinder 5 (Fig. 10), in which the piston 5 'through its shaft 5 ", depending on the amplitude of its stroke, the capacity of the chamber 5'", ie determines the volume of the product to be dispensed. Both the filling of the chamber 5 '" with the product and the ejection of the same into a tube take place during one complete rotation of each device, so that the time allotted to each device in the present example is eight times the time in which the filling of two consecutive tubes takes place in the machine

Appropriately, the devices of group A comprise an assembly 6 (FIG. 3), in which vertically guided sliding blocks 7 and T are arranged, to which the levers 8 and 8 'articulated in 8 "are rotatable in 7" and T " The sliding block 7 is controlled by a part 9 fixed on the fixed axis 3 (FIG. 4) and by a linkage Ψ belonging to the sliding block 7 which, during a rotation of the group, has an ascending and descending stroke, ie performs a shift in the vertical direction of the prescribed amplitude

As can be seen from FIGS. 3 to 6, the device A also comprises a guide arm 10, which can perform an angular rotation and which is firmly connected to a shaft 11 rotatably mounted in a cover 6 '. Along the arm 10 is a groove 10' for sliding even small roller 8 "'worked out for guidance at the articulation point 8" formed by the levers 8 and 8' (FIG. 3).

Opposite the arm 10 and outside the cover 6 ', a gear 12 is attached to the shaft 11, which is controlled by a screw 13. On this worm a gear 14 is mounted, which is through a electric commutator motor 15 (FIG. 2) is actuated with the involvement of a chain transmission 16. Appropriately actuates the electric motor 15 with the transmission shaft rotatable in two directions by means of

ίο the chain 16 the devices of the device A, especially during the operation of the machine to automatically compensate for any even small changes in the volume of the chamber 5 '"(FIG. 10) or the amount of material removed from the container 17.

With regard to the control devices mentioned above, it should be noted that the differentiation of the stroke of the sliding block T with respect to the sliding block 7 is obtained in that the articulation point 8 "slides in the groove 10 'of the arm 10, the arm 10 depending on its angular adjustment LM (F i g. 6) acts on the component of the vertical stroke of the articulation point 8 "and thus of the piston 5 '
From the F i g. 3 to 6 it can be seen that when the arm 10 is directed vertically downwards (L) and thus the axis of the groove 10 'is arranged parallel to the longitudinal axis of the sliding block 7, the stroke of the second sliding block T and thus the stroke of the piston 5 'are the same and consequently the capacity of the chamber 5'"above the piston 5 ' (FIG. 10) is maximum. If the arm 10 is now angularly adjusted in the direction M (FIG. 6), this results in the second sliding block T is a stroke that is smaller than the stroke of the sliding block 7 both when climbing and when descending, which results in a reduction in the amount of material to be removed

Expediently, each device of the device A for volumetric metering is also provided with means for independently setting the dose of the product to be dispensed. For this purpose, the gear wheel 12 is mounted with play on the shaft 11 and is provided with slots 18 ″ which extend along an arc around the axis of rotation of the gear wheel 12. A drive plate 18 is firmly screwed to the shaft 11 by a center screw 18 ′ Screws 18 '"attached to the drive plate protrude into the slots 18" of the gear wheel 12 and depending on the angular position in which the drive plate is fixed on the shaft 11, the pivot angle of the shaft 11 and thus the material dose is set

A second table A 2, which is arranged above the first table A 1, is used to attach the devices B (Figs. 2, 8, 9), the task of which is to increase the stroke of the injection nozzles /, which will be described in more detail below, to regulate. The coaxial table Λ 2 traversed by the shaft 3 is also attached to the lower one by spacers 19

Each device of the device A for voiumetric dosing corresponds to a device of the device B. These devices have the task of giving each filling nozzle of the device D the necessary stroke for the continuous filling of the tubes T. The filling takes place on a predetermined rotary arc of the rotatable group IV.

From the F i g. 2, 8 and 9 it can be seen that each device of the device B consists of an assembly 20 in which, parallel to the central axis 3, the positively controlled sliding block 21 or the lower sliding block 22

_g , on each of which the joints 21 'or ^! ngelenken are their common pivot point through a with a roller ^ "^^ JffiZ in the articulation point 23. The roller 23" slides in a groove 24' of a pivot arm 24, ^d «" I £ ™ ^ "J ¹ . 25 is firmly mounted, which is gripped with a screw 25, which is provided with a handle 26 to Bertttg «« by hand. The gear »'« ™ J ~ « ^as « «

the "rι mid" ₃ material is shown,

while on the right in Fig. 10 is the lower position of the KoI? 6 ^ _{made Ans g}

^? is shown to ^ s erenden product quantity. Geder zu ^ _beg . _{mt b} ",

precisely said ^ _{These stages extend}

evidence expediently gradually and continuously

ae "

was described, the positively controlled sliding block 21 is a precalculated stroke through the concentric cam 29 fixed on the central axis 3 and the plunger 30 ^^ Ά ^ Ά essentially corresponds to the stroke of the stone «22 when the pivot arm24 is directed downwards , while ^dw . "^ f * ^ S ^ BtaS is gradually reduced when, by turning deHand, the arm is turned so that it assumes a horizontal position, for example

In order to transfer the filler nozzle / the stroke is the sliding block 22 with a vertical ^ f ^ ^etm ^

, 5, and a MöDe ^ ^ ^ ^ ^

or press «« '^ »«' _ken ^ _{) while you are with}

is, _di ^ | ^e 8 ^en ° ^ _the extension of the stem

Ta ^ SSSSüi distributor presses. The body * i »η housed displaceably

gefs 46 The pivoting movement with respect to the pin by notching the distributor for actuation

«Ί with _{red through a fa of the drawing}

Obtain Si dargeVtellten electromagnet to _M ™ ^ ^{r ch} "?" ^E _"d, intervene if lacking in entspre-S Gi P a tube, thereby ver-SÄ undesired product discharge from

then a shift upwards

In order to prevent that while the tubes are being filled and if the filling nozzle is in its descending stroke is prevented. the delivery of the product takes place Tie rods 34 each pretensioning the spring

35 subject, however, as a result of their overall pressure offers a resistance that is less "t ab d", resistance that of any obstacle when lowering opposed to the filler nozzle

A subsequent third table A 3, which also crosses the central axis 3, is mounted on the table A 2 below by spacers 19 'and is used essentially to assemble the device C for controlling the removal of the product from the . vessel 17 and for supplying the correct Dos 'so j _{n dic} enuprechende filling nozzle (F i g 2 and 10V show bus Jb is the table a 3 is mounted coaxially with respect to "" spectral "axis a sprocket 4', which - as mentioned above -to shift of the individual tubes through the Greita T Se aSch'for synchronized actuation of the groups I. H, ΙΠ and V already mentioned

_{guided downwards through the guides} 47 As already described,

^^ l _infü lldüse each _{corresponding to} a Zugpjea ^ ^^.

W ^^ Ser device B for regulating the _{stroke the front} inserter is controlled. Every precaution _{required is a product} .

"Wüse ^ ^ _distributor S ₆ existing lines»? _Infeed nozzle via the stainless steel

«, Aie mu u, connected is the

^ ehen ^ e ge ejg _n ^L _Lc J ^ _{(Fig Λ} and 10), d, e

^ K ^ _exposure also bedeutensich fo ^ UCN Indians to a _married, that when

denDruckess ηκη ^ ^. _{occurs p} , e

^ _with ^ ₁ arms 49 and 50 realize r ^ steers 51.52 and 53 at each ^^ ^ hiebüng- opposite the inlet nozzle

™ Se ^ i "nnige movement executes a Die EinfüU-a scher" Mormg β e. ^ _N β ^^ ι, ^ η

^^ StaTo.Mg of a hollow medium he desired amount of material subsequent feeding of a print

20th

made of plastic in order to receive and hold the tube in the common hole 65 while it is being transported along said chain 4. The inserts are designed in a dovetail shape for easy replacement. In correspondence with the lower surface, each peg 55, 55 'is fixedly attached to an arm 61, 62 whose ends opposite the pegs 55, 55' interlock (FIG. 1 la). In place of their interlocking, a small roller 63 is also provided, which cooperates in the manner of a tappet with a cam 66 arranged on the guide G mentioned above. When the clamping jaws 56, 57, which are subject to the bias of a spring 64, have to move away from each other to release the tube they hold, which is shown in FIG. 11a is partially indicated with dash-dotted lines, the roller 63 presses against the cam 66 and executes the stroke "a" required for the release.

The lower part 54 of the gripper is expediently provided with rollers 67 and 68, which are made of plastic and enable the gripper P to be transferred perfectly and noiselessly into the guide itself.

As can be seen from FIG. 12, this takes place for various electrically operated devices mounted on the rotatable group IV are required Power is supplied by interposing collectors 125 which are mounted on the central axis 3 and by brushes 126. In the same way, the necessary pneumatic locking of the various Organs through a mechanical collector and the passage of lines inside the hollow axis 3.

The container 17 for the product to be dosed comprises an upper annular vessel 17 'traversed by the central axis 3 and from the bottom of which the downwardly directed conical containers 17 "in the same number of devices that form groups A, B, C , and the filling nozzles protrude (Fig. 2, 10a).

As a result, a greater flowability of the product contained in the container 17 is achieved, even if it is very viscous In addition, the vacuum is created at the connection of the container with the corresponding suction line prevented

In addition 5 sheets of drawings

40

45

55

60

Claims (1)

Patent claims: 1. Machine for the continuous filling of tubes, especially for dough-like products, with a Station for feeding the empty tubes to be filled, a station for inserting the tubes into the associated gripper, a station rotatable about a vertically arranged axis for filling the product through filling nozzles, a station for filling close the filled tubes and a chain revolving in a horizontal plane which conveys the tubes at a distance from one station to the other, characterized in that the known rotatable filling station (IV) in superimposed order