|
(11) | EP 1 270 194 A2 |
| (12) | EUROPEAN PATENT APPLICATION |
|
|
|
|
|||||||||||||||||||||||
| (54) | Device for applying delivering spouts on vessels |
| (57) The present invention relates to a device for applying delivering spouts (29) on
vessels in general, comprising, on a driving shaft (10), a driving cam (20) for driving
a reciprocating movement of a recess for engaging therein a delivering spout and a
cam (40) driving the movement of a counter-biassing arm (45) which can be engaged
inside a box-like element (4) thereon the delivering spout (29) is applied. |
BACKGROUND OF THE INVENTION
[0001] The present invention relates to a device for applying delivering spouts to vessels or containers in general.
[0002] As is known, in making boxes, containers and vessels or the like, including delivering spout which are frequently applied on a surface of said boxes or containers, upon having made them, great problems are at present encountered for performing a perfect timing of the operating movements, for easily applying the pouring or delivering spout.
[0003] Another drawback of prior art approaches is that it is frequently necessary to make very complex constructions in order to synchronize or time the several elements, which would generate possible malfunctions and failures.
SUMMARY OF THE INVENTION
[0004] Accordingly, the aim of the present invention is to overcome the above mentioned drawbacks, by providing a device for applying delivering spouts on containers in general, allowing to perfectly synchronize the movements necessary for applying said delivering spouts, starting from a single driving unit.
[0005] Within the scope of the above mentioned aim, a main object of the present invention is to provide such a device for applying delivering spouts which allows a very high yield to be obtained, with the possibility of properly synchronizing the drive or movement sequence.
[0006] Another object of the present invention is to provide such a device for applying delivering spouts on containers in general which, owing to its specifically designed constructional features, is very reliable and safe in operation.
[0007] Yet another object of the present invention is to provide such a delivering spout applying device which can be easily made, starting from easily available elements and materials, and which, moreover, is very competitive from a mere economic standpoint.
[0008] According to one aspect of the present invention, the above mentioned aim and objects, as well as yet other objects, which will become more apparent hereinafter are achieved by a device for applying delivering spouts on containers in general, characterized in that said device comprises, on a same driving shaft, a control cam for controlling a reciprocating movement of a recessed element for engaging therein a delivering spout and a further cam driving a movement of a counter-biassing arm, which can be engaged in a box-like container on which said delivering spout is applied.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Further characteristics and advantages of the present invention will become more apparent hereinafter from the following detailed disclosure of a preferred, though not exclusive, embodiment of a device for applying delivering spouts, which has been shown by way of an indicative, but not limitative, example in the accompanying drawings, where:
Figure 1 is a schematic top plan view of the delivering spout applying device according to the present invention;
Figure 2 is a side elevation view illustrating the subject device and clearly showing the recessed element for engaging therein the delivering spouts;
Figure 3 is a schematic perspective view illustrating a detail of the eccentric element and of a further eccentric or cam elements;
Figure 4 illustrates a driving diagram for driving a counter-biassing or abutment arm, at an engaged position thereof;
Figure 5 illustrates a driving or displacement diagram of the engaging recessed element, at an engaging condition thereof;
Figure 6 is a schematic view illustrating the counter-biassing or abutment arm, at a disengaged position thereof;
Figure 7 schematically illustrates the recessed element during a container withdrawing and displacing operation;
Figure 8 is a top plan view showing the locating of the cam and eccentric element at a disengaged position thereof; and
Figure 9 illustrates the locating of the cam and eccentric elements, as seen from the top, at an engaged or inserted condition thereof.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0010] With reference to the number references of the above mentioned figures, the device for applying delivering spouts on containers or holding boxes in general, according to the present invention, which has been generally indicated by the reference number 1, comprises a bearing framework 2 thereon are provided a pair of conveyor belts 3 for feeding a container or box-like element 4 to which the delivering spout must be applied.
[0011] To said bearing framework 2 is rotatably coupled a driving shaft 10, which is driven by an angular driving assembly 11.
[0012] On the mentioned driving shaft, and this represents a main feature of the present invention, is arranged a first eccentric or cam element 20, which has an eccentric body 21 keyed on the shaft 10 and coupled to an outer ring 22 through the interposition of bearings 23.
[0013] The outer ring 22 comprises a driving lug 24, which is pivoted on the middle portion of an arm of a recessed element 25, which is pivoted, at the top thereof, to the bearing framework 2 and, at the bottom thereof, to a connecting rod 26, coupled to the recessed element 30, which latter can horizontally slide, to move toward/away with respect to the containers 4 being fed step by step by the conveyor belts 3.
[0014] On said shaft 20 is moreover provided a second eccentric element, or desmodromic cam 40, which has a cam body 41 including a contoured track 42, in which is engaged a follower roller 43 of a driving arm 44.
[0015] The driving arm, at one end portion thereof, is pivoted to said bearing framework 2 and, at the other end portion thereof, is pivoted to the top end portion of a counter-biassing or abutment arm 45, which can be engaged or introduced in the container or box-like element 4 to engage against the recessed element 30, as the delivering spouts, generally indicated by 29, are engaged.
[0016] More specifically, the counter-biassing or abutment arm is driven by a driving arm 46 which, at one end portion thereof, is pivoted to a middle portion of the abutment or counter-biassing arm 45 and, at the other end portion thereof, is coupled to said bearing framework 2, and can also be pivoted either to the bearing framework 2 or directly to the shaft 10.
[0017] With the above disclosed arrangement, as the shaft is rotatively driven, it will cause an engaging or insertion movement, see figures 4 and 5, thereby the counter-biassing arm will be arranged inside a container or box-like element against the inner surface thereof, whereas the recessed element 30 should have engaged the delivering spout 29 and inserted it into the box-like element.
[0018] If the delivering spouts 29 are made of a metal material such as aluminium or the like, that it would not be necessary to perform pre-arrangements on the box-like element, whereas if the delivering spouts 29 are made of a paper material, that it would be preferred to provide slots through the box-like element body to facilitate the engaging or insertion of the delivering spouts which are fed along a single row.
[0019] In particular, the delivering spouts are delivered from a contoured strip coil or bobbin, and are bent, before engaging the recessed element 30, which will shear them, with respect to the remaining portion of the feeding belt.
[0020] In operation, the device will cause the recessed element to be back displaced or withdrawn, after having applied the delivering spout on the first container and before applying the delivering spout on the second container or box-like element or on the following containers.
[0021] The recessed element, in operation, will perform a feeding and withdrawing movement, by sliding on a linear guiding arrangement.
[0022] In particular, the driving of the recessed element is controlled by the eccentric member which, owing to its specifically designed contour, allows to obtain a decelerated displacement as the delivering spout is applied, and a further decelerated displacement, for allowing the following container or box-like element to pass through.
[0023] In the meanwhile, the desmodromic cam 40 will perform a movement which would be perfectly timed or synchronized, thereby allowing the counter-biassing arm for the recessed element to be engaged inside the container, thereby completing the delivering spout application operation.
[0024] It should be apparent that the displacement of the recessed element, in particular its decelerated movement, would allow to apply to the apparatus an automatically feeding device for automatically feeding withdrawable delivering spouts for carton-boxes or the like.
[0025] Moreover, the rearward displacement would allow the last delivering spout to be easily ejected, without obstacles or damaging the perfect operation of the overall device or apparatus.
[0026] From the above disclosure it should be apparent that the invention fully achieves the intended aim and objects.
[0027] In particular, a very simple device has been provided, for applying, with a perfectly synchronized movement sequence, the delivering spouts.
[0028] The invention, as disclosed, is susceptible to several modifications and variations, all of which will come within the scope of the inventive idea.
1. A device for applying delivering spouts on containers in general, characterized in that said device comprises, on a same driving shaft, a control cam for controlling a reciprocating
movement of a recessed element for engaging therein a delivering spout and a further
cam driving a movement of a counter-biassing arm, which can be engaged in a box-like
container on which said delivering spout is applied.
2. A device for applying delivering spouts, according to the preceding claim, characterized in that said cam or eccentric element comprises an eccentric body coupled to the driving
shaft and engaging through an interposition of ball bearings, to an outer ring having
a driving lug.
3. A device according to the preceding claim, characterized in that said driving lug is articulated to a middle portion of an arm of the recessed element,
which is pivoted, at one end thereof, to the framework of said device and, to the
other end thereof, to a connecting rod coupling said recessed element, which can be
reciprocated on horizontal guides.
4. A device according to one or more of the preceding claims, characterized in that said cam has a cam body including a cam track therein is engaged a follower roller,
provided on a middle portion of a pivoted driving arm, said driving arm being pivoted,
at one end thereof, to the bearing framework and, to the other end thereof, to said
counter-biassing arm, a further guiding arm pivoted to a middle portion of said counter-biassing
arm and to a point rigid with said bearing framework being moreover provided.
5. A device according to one or more of the preceding claims, characterized in that said delivering spouts are supplied from a continuous strip, therefrom the individual
delivering spouts are cut away by said recessed element.
6. A device for applying delivering spouts on containers in general, according to one
or more of the preceding claims, and substantially as disclosed and illustrated for
the intended aim and objects.