EP3034457B1 - Process for replacing capping heads and system for packaging products - Google Patents
Process for replacing capping heads and system for packaging products Download PDFInfo
- Publication number
- EP3034457B1 EP3034457B1 EP15200879.3A EP15200879A EP3034457B1 EP 3034457 B1 EP3034457 B1 EP 3034457B1 EP 15200879 A EP15200879 A EP 15200879A EP 3034457 B1 EP3034457 B1 EP 3034457B1
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- EP
- European Patent Office
- Prior art keywords
- capping
- head
- supporting unit
- capping head
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004806 packaging method and process Methods 0.000 title claims description 46
- 238000000034 method Methods 0.000 title claims description 22
- 230000008569 process Effects 0.000 title claims description 21
- 230000003213 activating effect Effects 0.000 claims description 16
- 230000003993 interaction Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 description 12
- 239000000047 product Substances 0.000 description 3
- 239000012263 liquid product Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002775 capsule Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
- B67B3/00—Closing bottles, jars or similar containers by applying caps
- B67B3/20—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps
- B67B3/2066—Details of capping heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
- B67B2201/00—Indexing codes relating to constructional features of closing machines
- B67B2201/10—Quick or easy connection means for connecting a capping head to a spindle
Definitions
- This invention relates to a process of the kind of the preamble of claim 1 for replacing capping heads and to a product packaging system of the kind of the preamble of claim 11 and, more specifically, to a system for filling containers with liquid products, loose materials or powders and for applying a respective cap to each container.
- Prior art packaging systems basically comprise a container filling station equipped with a plurality of product dispensers, a capping station downstream of the filling station according to a direction of feeding the containers along a packaging path and a system for moving the containers between one working station and another.
- the capping station usually comprises a capping machine of known type which, generally speaking, comprises a plurality of capping heads, each structured to carry and apply a cap to a corresponding container and releasably engaged with a corresponding supporting unit.
- the supporting units, and hence the capping heads, are movable relative to the container feed system between a far position and a near position for applying the cap.
- the capping heads move down towards the full containers in order to apply a cap to each container.
- replacing the capping heads involves bringing the capping machine to a stop and performing a series of manual operations, including positioning the capping heads in a head changeover station, removing the old heads and fitting the new heads suitable for the new containers to be processed.
- a reservoir is provided for the capping heads and the supporting units are movable between the capping station and the reservoir to engage and/or disengage the capping heads, which are preferably equipped with a quick disconnect system to connect the corresponding supporting element.
- a capping group is moved by an associated motorization, up to reaching a store such to store and pick up, automatically from the capping group itself, suitable capping heads as a function of the size of the caps or capsules to be screwed and waiting on the cap picking-up line.
- the disclosed capping head is supported removably via connecting means by a corresponding hollow sleeve mounted peripherally on a rotating carousel of a capping machine.
- Each head is provided with actuator means which rotate about a central axis of the head so as to fit a cap on the top of a container, retaining it thereon by means of a screw-type connection.
- This invention has for an aim to provide a process for replacing the capping heads which is faster than prior art solutions.
- Another aim of this invention is to provide a process for replacing the capping heads which does not require the presence of a cumbersome reservoir in the vicinity of the capping machine.
- a further aim of the invention is to provide a packaging system which allows replacing the capping heads more quickly than prior art solutions.
- the numeral 1 denotes a packaging system according to this invention.
- the system 1 is designed to fill containers 100 with liquid products 101 or loose materials or powders and to apply a cap 102 to each container 100.
- the system 1, which is described only insofar as necessary for understanding this invention, comprises feed means for feeding a plurality of containers 100 along a packaging path P in a direction of feed V.
- the system 1 comprises at least one capping station 2 arranged along the packaging path P and comprising a plurality of capping units 3. Downstream of the station 2, the system comprises further stations for subsequent processes of known type, not illustrated and not described.
- Each capping unit 3 is movable relative to the feed means, in substantially known manner, between a raised position and lowered position according to a direction of movement D.
- the capping unit 3 is movable relative to the containers 100 advancing along the path P between the far position and the near position for applying the cap 102 to a corresponding container 100.
- Each capping unit 3 comprises a supporting unit 4 and a capping head 5 associated with the corresponding supporting unit 4.
- the capping head 5 is attached to the supporting unit 4 in substantially known manner by means of a releasable engaging system 6 of the type known as "quick-disconnect coupling".
- the system 6 operates between the supporting unit 4 and the capping head 5 to keep the head 5 connected to the supporting unit 4.
- the possibility of moving the units 3 by which the caps are applied to the containers is used, according to the invention, to allow replacing the capping heads, for example in the event of a changeover to caps and/or containers of a different size during the processing thereof in the system 1.
- the capping heads can be replaced while the machine is in operation and without necessarily stopping it.
- the supporting unit 4 preferably comprises the engaging system 6, that is to say, the latter is integrated in the supporting unit 4.
- the aforementioned feed means for feeding the containers 2 comprise a conveyor 7 - for example a conveyor belt - which is movable along the feed path P.
- the aforementioned feed means for feeding the containers 2 comprise a conveyor 7 - for example a conveyor belt - which is movable along the feed path P and a plurality of wheels 8, 9, 10, 11 and 12, of substantially known type.
- the wheel 9 is part of a filling station 13 forming part of the system 1 and used for filling the containers 100 with the product 101.
- the filling station 13 is located upstream of the capping station 2 according to the feed direction V of the containers 100 and is of a substantially known type not described in detail herein.
- the system 1 comprises a containing system 14 for containing the capping heads 5, shaped to house the capping head 5 and movable at least along the packaging path P by using the feed means, in particular using the conveyor 7 and/or the wheels 8, 9, 10, 11 and 12.
- the containing system 14 comprises a supporting element 15a, 15b for the capping head 5 having a seat 16 for the capping head 5.
- the heads 5 are made to advance up to the capping station 2 using the movement means normally used to feed the containers 100 along the path P.
- the capping heads 5 are removed from the capping station 2 using the same movement means, at least partly.
- the feed means comprise the conveyor 7 and a plurality of trays 200, one of which is illustrated schematically in Figure 14a and which are made to advance by the conveyor 7.
- the movement means also comprise a plurality of elements 17 for supporting a corresponding container 100.
- the trays 200 have a plurality of seats 18, each designed to house a respective container 100.
- the means for feeding the containers 2 comprise a plurality of supporting elements 17, of which only one is illustrated, for convenience, and each of which is designed to house a corresponding container 100.
- the supporting element 17 for the container 100 is shaped to fit into the seat 18 of the tray 200 and in turn has an inner seat 19 for housing the container 100.
- the containers 100 are transported by means of the trays 200 which in turn mount the supporting elements 17 in which the containers 100 are inserted.
- the supporting elements 17 have an outside surface shaped to fit into the corresponding seat 18 on the tray 200 and an inside surface delimiting the seat 19, shaped to engage/receive the container 100.
- the trays 200 are standard, irrespective of the type of container 100, whilst only the supporting elements 17 vary for each type of container 100. When changing over to a different size of containers 100, it is sufficient to place the new containers 100 with the respective supporting elements 17 on the trays 200.
- the supporting elements 15a, 15b of the capping heads 5 are externally shaped to fit into the seats 18 of the trays 200, in such a way that the heads 5 can also be made to advance, at least as far as the capping station 2, using the trays 200.
- the aforementioned containing system 14 for the capping heads 5 also comprises the trays 200.
- the supporting elements 15a, 15b differ in shape intended, respectively, to allow engaging the capping head 5 with the supporting unit 4 and disengaging the capping head 5 from the supporting unit 4.
- the supporting element 15b comprises means for activating the releasable engaging system 6 at least for disengaging the capping head 5 from the respective supporting unit 4.
- the means for activating the engaging system 6 are configured to interact with the system 6 itself upon movement of the capping unit 3 between the far and the near position for disengaging the head 5 from the supporting unit 4.
- the supporting element 15b of the capping head 5 comprises an upper portion 20, for example in the shape of a ring or defined by ring portions, designed to engage with a part of the supporting unit 4, in particular with an element of the engaging system 6 in order to disengage the head 5 itself, as explained in more detail below.
- the supporting unit 4 basically comprises an actuating element 21 which is movable between the raised and lowered positions.
- the engaging system 6 of substantially known type, as mentioned, and described only insofar as necessary for understanding this invention, comprises a first collar 22 which is integral with the element 21 designed to at least partly engage with the capping head 5.
- the collar 22 is provided with a housing 22a for a plurality of balls 22b.
- the housing 22a is substantially ring-shaped and at least partly surrounds the collar 22.
- a slider 23 which is movable relative to the collar 22 between a lowered position, illustrated for example in Figure 16 , and a raised position, illustrated for example in Figure 17 , along the direction D.
- the system 6 comprises a first helical spring 24 interposed between the element 21 and the slider 23 to keep the slider 23 in the lowered position and opposing the movement of the slider 23 between the lowered position and the raised position.
- a second collar 25 which is movable between a raised position, illustrated for example in Figure 16 , and a lowered position, illustrated for example in Figure 17 .
- the system 6 comprises a second helical spring 26 fitted round the collar 22 and interposed between the element 21 and the outer collar 25 to urge the latter into the lowered position and oppose the movement thereof between the lowered and raised positions.
- the capping head 5 has a ring-shaped raceway 5a and the aforementioned balls 22b are movable between a position of engagement in the raceway 5a, illustrated for example in Figure 17 , where the head 5 is engaged with the supporting unit 4, and a position of disengagement from the raceway 5a, illustrated for example in Figure 16 , where the head 5 is free of the supporting unit 4.
- the inner slider 23, the collar 22 and the outer collar 25 are structured, in substantially known manner, to allow the aforementioned movement of the balls 22b and the corresponding retaining action.
- the capping heads 5, housed in the corresponding supporting elements 15a are fed, preferably along the path P, as far as the capping station 2 and positioned at the respective supporting unit 4.
- the supporting unit 4 is lowered, in the direction indicated by the arrow F1, until the slider 23, opposed by the head 5, rises, in the direction indicated by the arrow F2, overcoming the opposing action of the spring 24 and letting the balls 22b engage the raceway 5a ( Figures 16, 17 ).
- the head 5 can thus be raised, in the direction indicated by the arrow F4, and the element 15a supporting it moved away from the capping station 2 ( Figure 18 ).
- the empty supporting elements 15b of the capping heads are fed, preferably along the path P, until reaching the capping station 2 and are then positioned at a respective capping unit 3.
- the capping unit 3 is lowered, in the direction indicated by the arrow F1 ( Figure 19 ), until the outer collar 25 opposed by the portion 20 of the supporting element 15b overcomes the opposing action of the spring 26, as the supporting unit 4 moves down, and rises in the direction indicated by the arrow F5 ( Figure 20 ) relative to the collar 22.
- the balls 22b are then free to move outwards and the slider 23, under the action of the spring 24, pushes the balls 22b, arrow F6 Figure 20 , towards the outer collar 25, and in practice locks it in the raised position.
- the head 5 is thus disengaged from the supporting unit 4 which is now unladen and free to rise (arrow F4, Figure 21 ) and the head 5 can be removed from the capping station 2 at least partly along the path P using the supporting element 15b.
- feeding the capping heads 5 to or from the capping station 2 or feeding the supporting elements 15a, 15b to or from the capping station 2 is accomplished using the movement means of the containers 100, for example using the conveyor 7 and the wheels 8, 9, 10, 11 and 12.
- the system 1 comprises means for collecting the containing system 14, in particular the elements 15b supporting a corresponding capping head 5.
- the collecting means are also suitable for collecting the empty containers 15a from the path P, as and when required.
- the collecting means allow extracting the capping heads 5 supported by the elements 15b after the heads have been disengaged from the respective supporting units 4 and moving them along an unloading path P1.
- the capping heads 5 supported by the elements 15b, may be greater in overall height than the containers 100 and hence unable to move along the path P where the containers 100 pass, for example in the presence of a cap feed line not illustrated.
- the collecting means comprise a unit 27 for withdrawing the elements 15a and/or 15b and movable between a first operating position where it intercepts the path P and a second operating position, shown by dashed lines in Figure 15 where it is moved away from the path P.
- the collecting means also comprise a conveyor belt 28 movable in a direction V1 to carry the elements 15a and/or 15b away from the withdrawing unit 27 to a reservoir 29.
- the system 1 comprises a system 30 for access to the packaging path P which allows the withdrawing unit 27 to move between the aforementioned first and second operating positions.
- the path P is closed, that is to say, not accessible.
- the access system 30 creates a gap 31 through which the unit 27 gains access to and intercepts the path P.
- the system 1 comprises a system, schematically represented as a block 32, for moving the elements 15a supporting the capping heads 5 or the elements 15b in such a way as to feed elements 15a supporting the capping heads 5 or the elements 15b onto the packaging path P, in particular at the capping station 2.
- Figures 2 to 14 illustrate a machine of the type described, for example, in the aforementioned international patent application WO2014174419 in the name of the same Applicant as this application and incorporated herein by reference for completeness of description.
- the supporting unit 4 comprises an inner first part 33, for example tubular, and an outer second part 34 coaxial with the first part 33.
- the first part 33 are movable relative to each other along the direction of movement D and, as described in more detail below, constitute actuating elements for activating the engaging system 6.
- actuating elements 33, 34 are movable both to mount and to remove the capping heads 5 to and from the respective supporting units 4.
- the engaging system 6 of substantially known type, as mentioned, and described only insofar as necessary for understanding this invention, comprises a first collar 35 which is integral with the first part 33 of the supporting unit 4 and designed to at least partly engage with the capping head 5.
- the collar 35 is provided with a plurality of housings 35a, each for a corresponding ball 35b forming part of a plurality of balls 35b.
- the inner collar 35 has a plurality of second housings 35c, each for a corresponding ball 35d forming part of a plurality of balls 35d.
- a slider 36 which is movable relative to the collar 35 between a lowered position, illustrated for example in Figure 5 , and a raised position, illustrated for example in Figure 7 .
- the system 6 comprises a first helical spring 37 interposed between the inner first collar 35 and the slider 36 to keep the slider 36 in the lowered position and to oppose the movement of the slider 36 between the lowered position and the raised position.
- a second collar 38 which is movable along the direction D, relative in particular to the first collar 35, between a raised position, illustrated for example in Figure 8 , and a lowered position, illustrated for example in Figure 5 .
- the system 6 comprises a second helical spring 39 fitted round the collar 35 and operating between the element 35 itself and the outer collar 38 to urge the latter into the raised position and oppose the movement thereof between the raised and lowered positions.
- the capping head 5 has the aforementioned ring-shaped raceway 5a and the balls 35b are movable between a position of engagement in the raceway 5a, illustrated for example in Figure 8 , where the head 5 is engaged with the supporting unit 4, and a position of disengagement from the raceway 5a, illustrated for example in Figure 6 , where the head 5 is free of the supporting unit 4.
- the balls 35d are movable between a position of engagement with the collar 38, illustrated for example in Figure 12 and a position of disengagement from the collar 38, illustrated for example in Figure 9 .
- the inner slider 36, the collar 35 and the outer collar 38 are structured, in substantially known manner, to allow the aforementioned movement and the corresponding retaining action applied to the balls 35b and the balls 35d.
- the capping heads 5, housed in the corresponding supporting elements 15a are fed, preferably along the path P, as far as the capping station 2 and positioned at the respective supporting unit 4.
- the collar 38 is kept in the lowered position by the balls 35d ( Figures 5 , 6 ).
- the supporting unit 4 is lowered - arrow F7, Figures 5 , 6 - until the slider 36, opposed by the head 5, rises and overcomes the opposing action of the spring 37, letting the balls 35d disengage the collar 38 (arrow F8, Figure 6 ).
- the head 5 is thus mounted to the corresponding supporting unit 4, can be raised in the direction indicated by the arrow F10, Figure 9 , and the empty element 15a can be moved away from the capping station 2, preferably along the movement path P of the containers 100 and at least partly using the movement means thereof.
- the empty supporting elements 15a of the capping heads 5 are fed, preferably along the path P, until reaching the capping station 2 and are then positioned at a respective capping unit 3.
- the capping unit 3 is lowered, in the direction indicted by the arrow F7, until the head 5 is positioned in the corresponding container 15a ( Figure 11 ).
- the first part 33 of the supporting unit 4 is raised in the direction indicated by the arrow F11, keeping the second part 34 of it still, as schematically represented by the double arrow F12.
- the second part 34 engages with the collar 38 which is lowered relative to the inner collar 35 overcoming the opposing force of the spring 39 (arrow F13, Figure 12 ).
- the balls 35b are free to come out of the raceway 5a and the balls 35d are free to engage with the collar 38 under the action of the spring 37 which urges the slider 36 downwards (arrow F14, Figure 13 ).
- the head 5 is therefore free to drop into the supporting element 15a by which it can be moved away from the capping station along the container packaging path P.
- feeding the capping heads 5 to or from the capping station 2 or feeding the supporting elements 15a to or from the capping station 2 is accomplished using the movement means of the containers 100, for example using the conveyor 7 and, if provided, the aforementioned trays 200 which house the supporting elements 15a.
- a process for replacing at least one capping head 5 in the packaging system 1 comprises a step of mounting the capping head 5 on the supporting unit 4.
- the replacing process comprises a step of removing the capping head 5 from the supporting unit 4.
- the step of mounting the capping head 5 comprises at least a step of moving the supporting unit 4 between the aforementioned far position and the aforementioned near position.
- the step of removing the capping head 5 from the capping unit 3, and more specifically, from the supporting unit 4 comprises at least a step of moving the capping unit 3 between the aforementioned far position and the aforementioned near position.
- the mounting step comprises a step of positioning the capping head 5 in the capping station 2 using the means for feeding the containers 100.
- the mounting step occurs in the capping station 2 and comprises a step of moving the supporting unit 4 between the aforementioned far and near positions.
- the removing step comprises a step of moving the capping head 5 away from the capping station 2 using the aforementioned feed means at least partly.
- the removing step occurs in the capping station 2 and comprises a second step of moving the supporting unit 4 between the far position and the near position.
- the removing step comprises a step of feeding along the packaging path P a system 14 for containing the capping head 5, contained in particular in the element 15a or 15b, depending on the type of station 2, until reaching the capping unit 3 and a step of disengaging the capping head 5 from the containing system 15a or 15b.
- the removing step thus comprises a step of moving the containing system 14 with the capping head 5 away from the capping station 2 preferably along at least part of the packaging path P.
- the mounting step comprises a step of feeding along the packaging path P the capping head 5 housed in a containing system 14, in particular in the supporting element 15a, until reaching the capping unit 3, that is, until reaching the supporting unit 4.
- the mounting step comprises a step of engaging the capping head 5 with the supporting unit 4 and, preferably, a step of moving the empty containing system 14, in particular the supporting element 15a or 15b away from the capping station 2 preferably along at least part of the packaging path P of the containers 100.
- the mounting step comprises a step of positioning the capping head 5 in the capping station 2 using at least partly the feed means along the packaging path P.
- the removing step comprises a step of moving the capping head 5 away from the capping station 2 using at least partly the feed means along the packaging path P.
- the positioning step and the moving away step comprise a step of preparing the containing system 14 for containing the capping head 5, shaped to house the capping head 5 and movable at least along part of the packaging path P by using the feed means.
- the step of engaging the capping head 5 with the supporting unit 4 comprises a step of activating the engaging system 6 to engage the supporting unit 4 with the corresponding capping head 5.
- the step of activating the engaging system 6 comprises a step of moving at least a first part of the supporting unit 4 relative to a second part of the selfsame unit 4.
- the step of activating the engaging system 6 comprises a step of moving the slider 36 by lowering the supporting unit 4 and a step of moving the outer collar 38 by means of the spring 39.
- the step of activating the engaging system 6 comprises a step of moving at least a first part of the supporting unit 4 relative to a second part of the selfsame unit 4.
- the step of activating the engaging system 6 comprises a step of moving the slider 23 by lowering the supporting unit 4 in such way that the head 5 acts on the slider 23 to urge it upwards by overcoming the action of the spring 24.
- the step of activating the engaging system comprises a step of lowering the outer collar 25 under the action of the spring 26.
- the step of removing the capping head 5 from the supporting unit 4 comprises a step of disengaging the capping head 5 from the supporting unit 4 by a step of activating the engaging system 6.
- the disengaging step comprises a step of moving a first part of the supporting unit 4 relative to a second part of the supporting unit 4.
- the disengaging step comprises a step of moving a first part of the engaging system 6 relative to a second part of the engaging system 6.
- the collar 38 moves relative to the collar 35 thanks to the lifting of the first part 33 of the supporting unit 4 relative to the second part 34 of the same, which remains still.
- the disengaging step comprises a step of moving a first part of the engaging system 6 relative to a second part of the engaging system 6.
- the collar 25 moves relative to the collar 22 as a result of compressing the spring 26 while the slider 23 rises relative to the collar 22 on account of contact with the head 5 overcoming the opposing action of the spring 24.
- Activating the engaging system 6 comprises, as described earlier on, a step of interaction between the supporting unit 4 and the containing system, in particular with the upper portion 20 of the supporting element 15b when the supporting unit 4 moves down.
- the removing step comprises a step of moving the capping head 5, housed in the respective supporting element 15b, away from the capping station 2 along the unloading path P1 intersecting the packaging path P.
- the use of at least part of the packaging path of the containers for feeding the capping heads to the capping station, for example during a changeover allows optimizing the logistics of the system and changeover operations.
- removing the heads or the empty containers from the capping station along the packaging path or along an unloading path also greatly facilitates capping head changing procedures.
- the supporting units allow certain relative movements, such as for example those described above, engaging and, above all, disengaging, may be carried out easily irrespective of the support used to move the capping heads.
- suitably shaping the head supporting element makes it possible to activate the engaging system using the standard driving movements imparted to capping units by making the engaging system interact with the supporting element itself.
- the capping heads can be replaced without stopping the machine which translates as considerable savings in terms of reduced process cycle times.
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Description
- This invention relates to a process of the kind of the preamble of
claim 1 for replacing capping heads and to a product packaging system of the kind of the preamble ofclaim 11 and, more specifically, to a system for filling containers with liquid products, loose materials or powders and for applying a respective cap to each container. - Prior art packaging systems basically comprise a container filling station equipped with a plurality of product dispensers, a capping station downstream of the filling station according to a direction of feeding the containers along a packaging path and a system for moving the containers between one working station and another.
- An example of such a system is described in international patent application
WO2014174419 in the name of the same Applicant as this application and, more specifically, relates to what is known as an in-line system - The capping station usually comprises a capping machine of known type which, generally speaking, comprises a plurality of capping heads, each structured to carry and apply a cap to a corresponding container and releasably engaged with a corresponding supporting unit.
- The supporting units, and hence the capping heads, are movable relative to the container feed system between a far position and a near position for applying the cap. In practice, in the capping station, the capping heads move down towards the full containers in order to apply a cap to each container.
- In the event of changeover to containers of a different size and hence different caps, it is necessary to replace the capping heads accordingly.
- Generally speaking, replacing the capping heads involves bringing the capping machine to a stop and performing a series of manual operations, including positioning the capping heads in a head changeover station, removing the old heads and fitting the new heads suitable for the new containers to be processed.
- Alternatively, as for example in the solution described in the aforementioned international application, a reservoir is provided for the capping heads and the supporting units are movable between the capping station and the reservoir to engage and/or disengage the capping heads, which are preferably equipped with a quick disconnect system to connect the corresponding supporting element.
- This solution, too, has some disadvantages.
- The use of a reservoir is possible only with in-line systems where the supporting units can be moved translationally into the reservoir which must, in all events, be located very near the capping machine.
- Moreover, a large amount of space is necessary to store the capping heads to be unloaded and collected also as a function of the necessary movements of the supporting units.
- Another similar machine is described in international patent application
WO2015071868 , which is relevant for the assessment of novelty under Art. 54(3)EPC. - In the disclosed machine, a capping group is moved by an associated motorization, up to reaching a store such to store and pick up, automatically from the capping group itself, suitable capping heads as a function of the size of the caps or capsules to be screwed and waiting on the cap picking-up line.
- Another capping head intended to fit caps onto bottles or the like is disclosed in document
EP1273551 . This document discloses a process and a system according to the preambles ofclaim - The disclosed capping head is supported removably via connecting means by a corresponding hollow sleeve mounted peripherally on a rotating carousel of a capping machine. Each head is provided with actuator means which rotate about a central axis of the head so as to fit a cap on the top of a container, retaining it thereon by means of a screw-type connection.
- In this context, the main technical purpose of this invention is to overcome the above mentioned disadvantages.
- This invention has for an aim to provide a process for replacing the capping heads which is faster than prior art solutions.
- Another aim of this invention is to provide a process for replacing the capping heads which does not require the presence of a cumbersome reservoir in the vicinity of the capping machine.
- A further aim of the invention is to provide a packaging system which allows replacing the capping heads more quickly than prior art solutions.
- The technical purpose and aims specified are substantially achieved by a process for replacing capping heads according to
claim 1 and a packaging system according toclaim 11. Further features of the invention and its advantages are more apparent in the non-limiting description below, with reference to a preferred but non-exclusive embodiment of a packaging system as illustrated in the accompanying drawings, in which: -
Figure 1 illustrates a system according to this invention in a schematic block diagram; -
Figures 2 to 4 are schematic front views illustrating a detail of a system according to a first embodiment of the invention, in a sequence of steps in its operation; -
Figures 5 to 9 are schematic front views, partly in cross section, illustrating in more detail a sequence of operating steps for engaging the capping heads with the supporting units in a system of the kind shown inFigure 2 ; -
Figures 10 to 14 are schematic front views, partly in cross section, illustrating in more detail a sequence of operating steps for disengaging the capping heads from the supporting units in a system of the kind shown inFigure 2 ; -
Figure 14a illustrates a detail of an embodiment of a system according to this invention in a schematic perspective view; -
Figure 15 illustrates a further embodiment of a system according to this invention in a schematic plan view from above; -
Figures 16 to 18 are schematic front views, partly in cross section, illustrating a sequence of operating steps for engaging the capping heads with the supporting units in a system of the kind shown inFigure 15 ; -
Figures 19 to 21 are schematic front views, partly in cross section, illustrating in more detail a sequence of operating steps for disengaging the capping heads from the supporting units in a system of the kind shown inFigure 15 . - With reference to
Figure 1 , thenumeral 1 denotes a packaging system according to this invention. - The
system 1 is designed to fillcontainers 100 withliquid products 101 or loose materials or powders and to apply acap 102 to eachcontainer 100. Thesystem 1, which is described only insofar as necessary for understanding this invention, comprises feed means for feeding a plurality ofcontainers 100 along a packaging path P in a direction of feed V. - The
system 1 comprises at least onecapping station 2 arranged along the packaging path P and comprising a plurality ofcapping units 3. Downstream of thestation 2, the system comprises further stations for subsequent processes of known type, not illustrated and not described. - Each
capping unit 3 is movable relative to the feed means, in substantially known manner, between a raised position and lowered position according to a direction of movement D. - In practice, the
capping unit 3 is movable relative to thecontainers 100 advancing along the path P between the far position and the near position for applying thecap 102 to acorresponding container 100. - Each
capping unit 3 comprises a supportingunit 4 and acapping head 5 associated with the corresponding supportingunit 4. - More specifically, the capping
head 5 is attached to the supportingunit 4 in substantially known manner by means of a releasableengaging system 6 of the type known as "quick-disconnect coupling". - The
system 6 operates between the supportingunit 4 and thecapping head 5 to keep thehead 5 connected to the supportingunit 4. - As explained below, the possibility of moving the
units 3 by which the caps are applied to the containers is used, according to the invention, to allow replacing the capping heads, for example in the event of a changeover to caps and/or containers of a different size during the processing thereof in thesystem 1. - That way, the capping heads can be replaced while the machine is in operation and without necessarily stopping it.
- As illustrated for example in
Figures 5-14 and16-21 , the supportingunit 4 preferably comprises theengaging system 6, that is to say, the latter is integrated in the supportingunit 4. - In the embodiment illustrated in
Figures 1 to 14 , the aforementioned feed means for feeding thecontainers 2 comprise a conveyor 7 - for example a conveyor belt - which is movable along the feed path P. - In the embodiment illustrated in
Figures 15 to 21 , showing what is called a "rotary" packaging system, of substantially known type, the aforementioned feed means for feeding thecontainers 2 comprise a conveyor 7 - for example a conveyor belt - which is movable along the feed path P and a plurality ofwheels - More specifically, the wheel 9 is part of a
filling station 13 forming part of thesystem 1 and used for filling thecontainers 100 with theproduct 101. - The
filling station 13 is located upstream of thecapping station 2 according to the feed direction V of thecontainers 100 and is of a substantially known type not described in detail herein. - The
system 1 comprises a containingsystem 14 for containing thecapping heads 5, shaped to house thecapping head 5 and movable at least along the packaging path P by using the feed means, in particular using theconveyor 7 and/or thewheels - The containing
system 14 comprises a supportingelement capping head 5 having a seat 16 for thecapping head 5. - That way, as will become clearer as this description continues, the
heads 5 are made to advance up to thecapping station 2 using the movement means normally used to feed thecontainers 100 along the path P. Similarly, as will become clearer as this description continues, thecapping heads 5 are removed from thecapping station 2 using the same movement means, at least partly. - In a preferred embodiment, compatible in particular with the embodiment shown in
Figures 1 to 14 , the feed means comprise theconveyor 7 and a plurality oftrays 200, one of which is illustrated schematically inFigure 14a and which are made to advance by theconveyor 7. - The movement means also comprise a plurality of
elements 17 for supporting acorresponding container 100. - The
trays 200 have a plurality ofseats 18, each designed to house arespective container 100. - The means for feeding the
containers 2 comprise a plurality of supportingelements 17, of which only one is illustrated, for convenience, and each of which is designed to house acorresponding container 100. - The supporting
element 17 for thecontainer 100 is shaped to fit into theseat 18 of thetray 200 and in turn has aninner seat 19 for housing thecontainer 100. - The
containers 100 are transported by means of thetrays 200 which in turn mount the supportingelements 17 in which thecontainers 100 are inserted. The supportingelements 17 have an outside surface shaped to fit into thecorresponding seat 18 on thetray 200 and an inside surface delimiting theseat 19, shaped to engage/receive thecontainer 100. - Thus, the
trays 200 are standard, irrespective of the type ofcontainer 100, whilst only the supportingelements 17 vary for each type ofcontainer 100. When changing over to a different size ofcontainers 100, it is sufficient to place thenew containers 100 with the respective supportingelements 17 on thetrays 200. - In this embodiment, advantageously, the supporting
elements capping heads 5 are externally shaped to fit into theseats 18 of thetrays 200, in such a way that theheads 5 can also be made to advance, at least as far as thecapping station 2, using thetrays 200. - In practice, the aforementioned containing
system 14 for thecapping heads 5 also comprises thetrays 200. - The supporting
elements capping head 5 with the supportingunit 4 and disengaging thecapping head 5 from the supportingunit 4. - With reference in particular to
Figures 19 to 21 , in the embodiment illustrated, the supportingelement 15b comprises means for activating the releasable engagingsystem 6 at least for disengaging thecapping head 5 from the respective supportingunit 4. - The means for activating the engaging
system 6 are configured to interact with thesystem 6 itself upon movement of thecapping unit 3 between the far and the near position for disengaging thehead 5 from the supportingunit 4. - More specifically, in the embodiment illustrated, the supporting
element 15b of thecapping head 5 comprises anupper portion 20, for example in the shape of a ring or defined by ring portions, designed to engage with a part of the supportingunit 4, in particular with an element of the engagingsystem 6 in order to disengage thehead 5 itself, as explained in more detail below. - With reference to
Figures 16 to 21 , in the embodiment illustrated, the supportingunit 4 basically comprises anactuating element 21 which is movable between the raised and lowered positions. - The engaging
system 6, of substantially known type, as mentioned, and described only insofar as necessary for understanding this invention, comprises afirst collar 22 which is integral with theelement 21 designed to at least partly engage with the cappinghead 5. - The
collar 22 is provided with ahousing 22a for a plurality ofballs 22b. Thehousing 22a is substantially ring-shaped and at least partly surrounds thecollar 22. - Inside the
collar 22 there is aslider 23 which is movable relative to thecollar 22 between a lowered position, illustrated for example inFigure 16 , and a raised position, illustrated for example inFigure 17 , along the direction D. - The
system 6 comprises a firsthelical spring 24 interposed between theelement 21 and theslider 23 to keep theslider 23 in the lowered position and opposing the movement of theslider 23 between the lowered position and the raised position. - Outside the
collar 22 there is asecond collar 25 which is movable between a raised position, illustrated for example inFigure 16 , and a lowered position, illustrated for example inFigure 17 . - The
system 6 comprises a secondhelical spring 26 fitted round thecollar 22 and interposed between theelement 21 and theouter collar 25 to urge the latter into the lowered position and oppose the movement thereof between the lowered and raised positions. - The capping
head 5 has a ring-shapedraceway 5a and theaforementioned balls 22b are movable between a position of engagement in theraceway 5a, illustrated for example inFigure 17 , where thehead 5 is engaged with the supportingunit 4, and a position of disengagement from theraceway 5a, illustrated for example inFigure 16 , where thehead 5 is free of the supportingunit 4. - The
inner slider 23, thecollar 22 and theouter collar 25 are structured, in substantially known manner, to allow the aforementioned movement of theballs 22b and the corresponding retaining action. - In use, with reference to
Figures 16 to 18 , considering a starting configuration where thecapping unit 3 is without the capping head, the capping heads 5, housed in the corresponding supportingelements 15a, are fed, preferably along the path P, as far as thecapping station 2 and positioned at the respective supportingunit 4. - To mount the
capping head 5 to the supportingunit 4, the supportingunit 4 is lowered, in the direction indicated by the arrow F1, until theslider 23, opposed by thehead 5, rises, in the direction indicated by the arrow F2, overcoming the opposing action of thespring 24 and letting theballs 22b engage theraceway 5a (Figures 16, 17 ). - That way, the
outer collar 25 moves down under the pushing action of thespring 26, in the direction indicated by the arrow F3, locking theballs 22b in theraceway 5a and thereby causing thehead 5 to be locked or mounted to the supporting unit 4 (Figure 17 ). - The
head 5 can thus be raised, in the direction indicated by the arrow F4, and theelement 15a supporting it moved away from the capping station 2 (Figure 18 ). - As illustrated in
Figures 19 to 21 , when the capping heads 5 have to be removed or disassembled from the cappingunits 3, the empty supportingelements 15b of the capping heads are fed, preferably along the path P, until reaching thecapping station 2 and are then positioned at arespective capping unit 3. - The
capping unit 3 is lowered, in the direction indicated by the arrow F1 (Figure 19 ), until theouter collar 25 opposed by theportion 20 of the supportingelement 15b overcomes the opposing action of thespring 26, as the supportingunit 4 moves down, and rises in the direction indicated by the arrow F5 (Figure 20 ) relative to thecollar 22. - The
balls 22b are then free to move outwards and theslider 23, under the action of thespring 24, pushes theballs 22b, arrow F6Figure 20 , towards theouter collar 25, and in practice locks it in the raised position. - The
head 5 is thus disengaged from the supportingunit 4 which is now unladen and free to rise (arrow F4,Figure 21 ) and thehead 5 can be removed from thecapping station 2 at least partly along the path P using the supportingelement 15b. - Advantageously, feeding the capping heads 5 to or from the
capping station 2 or feeding the supportingelements capping station 2 is accomplished using the movement means of thecontainers 100, for example using theconveyor 7 and thewheels - As illustrated in
Figure 15 , thesystem 1 comprises means for collecting the containingsystem 14, in particular theelements 15b supporting acorresponding capping head 5. - The collecting means are also suitable for collecting the
empty containers 15a from the path P, as and when required. - The collecting means allow extracting the capping heads 5 supported by the
elements 15b after the heads have been disengaged from the respective supportingunits 4 and moving them along an unloading path P1. - This solution is advantageously applicable when downstream of, or in substantial proximity to, the
capping station 2, the system is of a size such that it is difficult for the capping heads 5 to move through along the path P. In effect, the capping heads 5, supported by theelements 15b, may be greater in overall height than thecontainers 100 and hence unable to move along the path P where thecontainers 100 pass, for example in the presence of a cap feed line not illustrated. - In the embodiment illustrated by way of example, the collecting means comprise a
unit 27 for withdrawing theelements 15a and/or 15b and movable between a first operating position where it intercepts the path P and a second operating position, shown by dashed lines inFigure 15 where it is moved away from the path P. - The collecting means also comprise a
conveyor belt 28 movable in a direction V1 to carry theelements 15a and/or 15b away from the withdrawingunit 27 to areservoir 29. - Preferably, the
system 1 comprises asystem 30 for access to the packaging path P which allows the withdrawingunit 27 to move between the aforementioned first and second operating positions. - In practice, during the movement of the
containers 100, the path P is closed, that is to say, not accessible. During changeover of theheads 5, theaccess system 30 creates agap 31 through which theunit 27 gains access to and intercepts the path P. - In a further embodiment, the
system 1 comprises a system, schematically represented as ablock 32, for moving theelements 15a supporting the capping heads 5 or theelements 15b in such a way as to feedelements 15a supporting the capping heads 5 or theelements 15b onto the packaging path P, in particular at thecapping station 2. - Advantageously, in such case, where the aforementioned collecting means are provided, it is possible to place a loading reservoir and the unloading
reservoir 29 close to each other, thereby simplifying the logistics of thesystem 1. -
Figures 2 to 14 illustrate a machine of the type described, for example, in the aforementioned international patent applicationWO2014174419 in the name of the same Applicant as this application and incorporated herein by reference for completeness of description. - Illustrated in more detail in particular in
Figures 5 to 14 are the supportingunit 4 and thereleasable system 6 for engaging the capping heads 5 with the supportingunit 4, both of substantially known type and described only insofar as necessary for understanding this invention. - The supporting
unit 4 comprises an innerfirst part 33, for example tubular, and an outersecond part 34 coaxial with thefirst part 33. - The
first part 33 are movable relative to each other along the direction of movement D and, as described in more detail below, constitute actuating elements for activating the engagingsystem 6. - More specifically, the
actuating elements units 4. - In the embodiment illustrated, the engaging
system 6, of substantially known type, as mentioned, and described only insofar as necessary for understanding this invention, comprises afirst collar 35 which is integral with thefirst part 33 of the supportingunit 4 and designed to at least partly engage with the cappinghead 5. - The
collar 35 is provided with a plurality ofhousings 35a, each for acorresponding ball 35b forming part of a plurality ofballs 35b. - The
inner collar 35 has a plurality ofsecond housings 35c, each for acorresponding ball 35d forming part of a plurality ofballs 35d. - Inside the
collar 35 there is aslider 36 which is movable relative to thecollar 35 between a lowered position, illustrated for example inFigure 5 , and a raised position, illustrated for example inFigure 7 . - The
system 6 comprises a firsthelical spring 37 interposed between the innerfirst collar 35 and theslider 36 to keep theslider 36 in the lowered position and to oppose the movement of theslider 36 between the lowered position and the raised position. - Outside the
collar 35 there is asecond collar 38 which is movable along the direction D, relative in particular to thefirst collar 35, between a raised position, illustrated for example inFigure 8 , and a lowered position, illustrated for example inFigure 5 . - The
system 6 comprises a secondhelical spring 39 fitted round thecollar 35 and operating between theelement 35 itself and theouter collar 38 to urge the latter into the raised position and oppose the movement thereof between the raised and lowered positions. - The capping
head 5 has the aforementioned ring-shapedraceway 5a and theballs 35b are movable between a position of engagement in theraceway 5a, illustrated for example inFigure 8 , where thehead 5 is engaged with the supportingunit 4, and a position of disengagement from theraceway 5a, illustrated for example inFigure 6 , where thehead 5 is free of the supportingunit 4. - The
balls 35d are movable between a position of engagement with thecollar 38, illustrated for example inFigure 12 and a position of disengagement from thecollar 38, illustrated for example inFigure 9 . - The
inner slider 36, thecollar 35 and theouter collar 38 are structured, in substantially known manner, to allow the aforementioned movement and the corresponding retaining action applied to theballs 35b and theballs 35d. - In use, with reference in particular to
Figures 2 to 9 , considering a starting configuration where thecapping unit 3 is without the capping head, the capping heads 5, housed in the corresponding supportingelements 15a, are fed, preferably along the path P, as far as thecapping station 2 and positioned at the respective supportingunit 4. - The
collar 38 is kept in the lowered position by theballs 35d (Figures 5 ,6 ). - To mount the
capping head 5 to the supportingunit 4, the supportingunit 4 is lowered - arrow F7,Figures 5 ,6 - until theslider 36, opposed by thehead 5, rises and overcomes the opposing action of thespring 37, letting theballs 35d disengage the collar 38 (arrow F8,Figure 6 ). - The
collar 38, under the action of thespring 39, is urged into the raised position - arrow F9,Figure 7 - pushing theballs 35b into theraceway 5a and keeping them engaged therein. - Advantageously, there is an
upper limit stop 40 for the collar 38 (Figures 8 and9 ). - The
head 5 is thus mounted to the corresponding supportingunit 4, can be raised in the direction indicated by the arrow F10,Figure 9 , and theempty element 15a can be moved away from thecapping station 2, preferably along the movement path P of thecontainers 100 and at least partly using the movement means thereof. - As illustrated in particular in
Figures 10 to 14 , when the capping heads 5 have to be removed or disassembled from the cappingunits 3, the empty supportingelements 15a of the capping heads 5 are fed, preferably along the path P, until reaching thecapping station 2 and are then positioned at arespective capping unit 3. - The
capping unit 3 is lowered, in the direction indicted by the arrow F7, until thehead 5 is positioned in thecorresponding container 15a (Figure 11 ). With reference toFigure 12 , thefirst part 33 of the supportingunit 4 is raised in the direction indicated by the arrow F11, keeping thesecond part 34 of it still, as schematically represented by the double arrow F12. - The
second part 34 engages with thecollar 38 which is lowered relative to theinner collar 35 overcoming the opposing force of the spring 39 (arrow F13,Figure 12 ). - The
balls 35b are free to come out of theraceway 5a and theballs 35d are free to engage with thecollar 38 under the action of thespring 37 which urges theslider 36 downwards (arrow F14,Figure 13 ). - The
head 5 is therefore free to drop into the supportingelement 15a by which it can be moved away from the capping station along the container packaging path P. - Advantageously, feeding the capping heads 5 to or from the
capping station 2 or feeding the supportingelements 15a to or from thecapping station 2 is accomplished using the movement means of thecontainers 100, for example using theconveyor 7 and, if provided, theaforementioned trays 200 which house the supportingelements 15a. - A process for replacing at least one
capping head 5 in thepackaging system 1 comprises a step of mounting thecapping head 5 on the supportingunit 4. - Preferably, the replacing process comprises a step of removing the
capping head 5 from the supportingunit 4. - According to what is described in the foregoing, the step of mounting the
capping head 5 comprises at least a step of moving the supportingunit 4 between the aforementioned far position and the aforementioned near position. - Similarly, the step of removing the
capping head 5 from thecapping unit 3, and more specifically, from the supportingunit 4 comprises at least a step of moving thecapping unit 3 between the aforementioned far position and the aforementioned near position. - Advantageously, the mounting step comprises a step of positioning the
capping head 5 in thecapping station 2 using the means for feeding thecontainers 100. - The mounting step occurs in the
capping station 2 and comprises a step of moving the supportingunit 4 between the aforementioned far and near positions. - The removing step comprises a step of moving the
capping head 5 away from thecapping station 2 using the aforementioned feed means at least partly. - The removing step occurs in the
capping station 2 and comprises a second step of moving the supportingunit 4 between the far position and the near position. - More specifically, as explained above, the removing step comprises a step of feeding along the packaging path P a
system 14 for containing the cappinghead 5, contained in particular in theelement station 2, until reaching thecapping unit 3 and a step of disengaging thecapping head 5 from the containingsystem - The removing step thus comprises a step of moving the containing
system 14 with the cappinghead 5 away from thecapping station 2 preferably along at least part of the packaging path P. - The mounting step comprises a step of feeding along the packaging path P the capping
head 5 housed in a containingsystem 14, in particular in the supportingelement 15a, until reaching thecapping unit 3, that is, until reaching the supportingunit 4. - The mounting step comprises a step of engaging the
capping head 5 with the supportingunit 4 and, preferably, a step of moving the empty containingsystem 14, in particular the supportingelement capping station 2 preferably along at least part of the packaging path P of thecontainers 100. - In practice, the mounting step comprises a step of positioning the
capping head 5 in thecapping station 2 using at least partly the feed means along the packaging path P. - The removing step comprises a step of moving the
capping head 5 away from thecapping station 2 using at least partly the feed means along the packaging path P. - The positioning step and the moving away step comprise a step of preparing the containing
system 14 for containing the cappinghead 5, shaped to house the cappinghead 5 and movable at least along part of the packaging path P by using the feed means. - The step of engaging the
capping head 5 with the supportingunit 4 comprises a step of activating the engagingsystem 6 to engage the supportingunit 4 with thecorresponding capping head 5. - With reference in particular to
Figures 5 to 8 and as described above, the step of activating the engagingsystem 6 comprises a step of moving at least a first part of the supportingunit 4 relative to a second part of theselfsame unit 4. - More specifically, the step of activating the engaging
system 6 comprises a step of moving theslider 36 by lowering the supportingunit 4 and a step of moving theouter collar 38 by means of thespring 39. - With reference in particular to
Figures 16 to 18 and as described above, the step of activating the engagingsystem 6 comprises a step of moving at least a first part of the supportingunit 4 relative to a second part of theselfsame unit 4. - More specifically, the step of activating the engaging
system 6 comprises a step of moving theslider 23 by lowering the supportingunit 4 in such way that thehead 5 acts on theslider 23 to urge it upwards by overcoming the action of thespring 24. - Substantially simultaneously, the step of activating the engaging system comprises a step of lowering the
outer collar 25 under the action of thespring 26. - The step of removing the
capping head 5 from the supportingunit 4 comprises a step of disengaging thecapping head 5 from the supportingunit 4 by a step of activating the engagingsystem 6. - The disengaging step comprises a step of moving a first part of the supporting
unit 4 relative to a second part of the supportingunit 4. - More specifically, with reference to
Figures 10 to 14 and as described above, the disengaging step comprises a step of moving a first part of the engagingsystem 6 relative to a second part of the engagingsystem 6. - As mentioned, the
collar 38 moves relative to thecollar 35 thanks to the lifting of thefirst part 33 of the supportingunit 4 relative to thesecond part 34 of the same, which remains still. - With reference to
Figures 19 to 21 , in the embodiment illustrated, the disengaging step comprises a step of moving a first part of the engagingsystem 6 relative to a second part of the engagingsystem 6. - As mentioned, the
collar 25 moves relative to thecollar 22 as a result of compressing thespring 26 while theslider 23 rises relative to thecollar 22 on account of contact with thehead 5 overcoming the opposing action of thespring 24. - Activating the engaging
system 6 comprises, as described earlier on, a step of interaction between the supportingunit 4 and the containing system, in particular with theupper portion 20 of the supportingelement 15b when the supportingunit 4 moves down. - With reference in particular to
Figure 15 , the removing step comprises a step of moving thecapping head 5, housed in the respective supportingelement 15b, away from thecapping station 2 along the unloading path P1 intersecting the packaging path P. - The invention as described above brings important advantages.
- The use of at least part of the packaging path of the containers for feeding the capping heads to the capping station, for example during a changeover allows optimizing the logistics of the system and changeover operations. Similarly, removing the heads or the empty containers from the capping station along the packaging path or along an unloading path also greatly facilitates capping head changing procedures.
- If the supporting units allow certain relative movements, such as for example those described above, engaging and, above all, disengaging, may be carried out easily irrespective of the support used to move the capping heads.
- In the case of simple machines, suitably shaping the head supporting element makes it possible to activate the engaging system using the standard driving movements imparted to capping units by making the engaging system interact with the supporting element itself.
- In the case of non-standard sizes, it is possible to feed and unload the capping heads along dedicated paths leading to the capping station where the capping heads can be quickly and easily replaced using the supporting unit drive system normally used to apply the caps to the containers being processed.
- The capping heads can be replaced without stopping the machine which translates as considerable savings in terms of reduced process cycle times.
Claims (16)
- A process for replacing capping heads (5) in a system (1) for packaging a product (101) in a corresponding container (100), the packaging system (1) being of a type comprising at least a capping station (2) and means (7, 8, 9, 10, 11, 12, 17, 18, 200) for feeding at least one container (100) in a feed direction (V) along a packaging path (P), the capping station (2) comprising at least a capping unit (3) movable relative to the feed means (7, 8, 9, 10, 11, 12, 17, 18, 200) between a far position and a near position for applying a cap (102) to the container (100), the capping unit comprising a supporting unit (4), a capping head (5) and a releasable engaging system (6) operating between the supporting unit (4) and the capping head (5) such as to keep the capping head (5) connected to the supporting unit (4), the process comprising
a step of mounting the capping head (5) on the supporting unit (4) and/or a step of removing the capping head (5) from the supporting unit (4), characterized by the step of mounting the capping head (5) comprising at least a step of moving the supporting unit (4) between the far position and the near position and/or the step of removing the capping head (5) comprising at least a step of moving the capping unit (3) between the far position and the near position, wherein the mounting step comprises a step of positioning the capping head (5) in the capping station (2) at least partly by using the feed means (7, 8, 9, 10, 11, 12, 17, 18, 200) and along the packaging path (P) and/or the removing step comprises a step of moving the capping head (5) away from the capping station (3), at least partly by using the feed means (7, 8, 9, 10, 11, 12, 17, 18, 200) and along the packaging path (P). - The process according to claim 1, wherein the removing step comprises a step of feeding, along the packaging path, a containing system (14) of the capping head (5), up to the capping unit (3) in the capping station (2);
a step of releasing the capping head (5) in the containing system (14) in the capping station (2);
a step of moving the containing system (14) with the capping head (5) away from the capping station (2) preferably along at least part of the packaging path (P). - The process according to claim 1 or 2, wherein the mounting step comprises a step of feeding, along the packaging path (P) of the capping head (5) housed in a containing system (14), up to the capping unit (3) in the capping station (2);
a step of engaging the capping head (5) to the supporting unit (4);
a step of moving the containing system (14) when empty away from the capping station (2) preferably along at least part of the packaging path (P). - The process according to any one of claims 1 to 3, wherein the mounting step comprises a step of engaging the capping head (5) in the supporting unit (4) by means of a step of activating the releasable engaging system (6) in order to engage the supporting unit (4) of the capping head (5), comprising a step of relative movement of at least a first part (22, 35) of the releasable engaging system (6) and of at least a second part (23, 25, 36, 38) of the releasable engaging system (6).
- The process according to any one of claims 1 to 4, wherein the removing step comprises a step of disengaging the capping head (5) from the supporting unit (4) by means of a step of activating the releasable engaging system (6) comprising a step of relative movement of at least a first part (22, 35) of the releasable engaging system (6) and of at least a second part (23, 25, 36, 38) of the releasable engaging system (6).
- The process according to claim 5, wherein the step of relative movement of at least a first part (22, 35) of the releasable engaging system (6) and of a second part (23, 25, 36, 38) of the releasable engaging system (6) in the disengaging step comprises a step of relative movement of a first part (33) of the supporting unit (4) and of a second part (34) of the supporting unit (4).
- The process according to claim 6, wherein the relative movement step of at least a first part (22, 35) of the releasable engaging system (6) and of a second part (23, 25, 36, 38) of the releasable engaging system (6) in the disengaging step comprises a step of moving the first part (35) of the releasable engaging system (6) by means of a first part (33) of the supporting unit (4) and a step of moving the second part (38) of the releasable engaging system (6) by means of a second part (34) of the supporting unit (4).
- The process according to any one of claims 1 to 7, wherein the removing step comprises
a step of feeding, along the packaging path (P), a containing system (14) of the capping head (5) up to the capping unit (3) in the capping station (2);
a step of disengaging the capping head (5) from the supporting unit (4) by means of a step of activating the releasable engaging system (6) comprising a step of interaction between the releasable engaging system (6) and the containing system (14). - The process according to claim 8, wherein the step of interaction between the releasable engaging system (6) and the containing system (14) occurs during the step of moving the capping unit (3) between the far position and the near position, an external collar (25) of the engaging system (6) being activated by an upper portion (20) of a supporting element (15b) of the capping head (5) forming part of the containing system (14).
- The process according to any one of claims 1 to 9, wherein the removing step comprises a step of moving the capping head (5) away from the capping station (2) along an unloading path (P1) intersecting the packaging path (P).
- A system for packaging a product (101) in a corresponding container (100), the system comprising
means (7, 8, 9, 10, 11, 12, 17, 18, 200) of feeding at least a container (100) for feeding the container (100) in an feed direction (V) along a packaging path (P);
at least one capping station (2) arranged along the packaging path (P) and comprising
at least one capping unit (3) comprising a supporting unit (4), a capping head (5) and a releasable engaging system (6) for retaining the capping head (5) connected to the supporting unit (4), the capping unit (3) being movable relative to the feed means (7, 8, 9, 10, 11, 12, 17, 18, 200) between a far position and a near position of application of a cap (102) to the container (100), the system being characterized in that it comprises a containing system (14) for containing the capping head (5), shaped to house the capping head (5), the feed means (7, 8, 9, 10, 11, 12, 17, 18, 200) being configured to move the containing system (14) at least along part of the packaging path (P). - The system according to claim 11, wherein the containing system (14) comprises a supporting element (15a, 15b) for the capping head (5) having a seat (16) for the capping head (5).
- The system according to claim 12, wherein the feed means (7, 8, 9, 10, 11, 12, 17, 18, 200) comprise a conveyor (7) mobile along the packaging path (P) and the containing system (14) comprises at least a tray (200) fed by the conveyor (3) and having a second seat (18) for the supporting element (15a, 15b).
- The system according to claim 12 or 13, wherein at least a first supporting element (15b) comprises means (20) for activating the releasable engaging system (6) at least such as to disengage the capping head (5) from the supporting unit (4), the activating means (20) being configured to interact with the releasable engaging system (6) upon a movement of the capping unit (3) between the far and near positions.
- The system according to any one of claims 11 to 14, comprising collecting means (27, 28) of the containing system (14) and the capping head (5) from the packaging path.
- The system according to claim 15, comprising a system (30, 31) for access to the packaging path (P), the collecting means (27, 28) being at least partly mobile through the access system (30, 31) between a first operating position far from the packaging path (P) and a second operating position near to the packaging path (P).
Applications Claiming Priority (1)
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ITBO20140713 | 2014-12-19 |
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DE102016220472A1 (en) * | 2016-10-19 | 2018-04-19 | Krones Ag | Quick-change coupling for a container treatment machine |
CN112850603A (en) * | 2020-12-30 | 2021-05-28 | 刘德爱 | Packaging and sealing device for articles for daily use |
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JP3687857B2 (en) * | 1992-05-29 | 2005-08-24 | 澁谷工業株式会社 | Work head changer for rotary container processing equipment |
ITVI20010152A1 (en) * | 2001-07-05 | 2003-01-05 | Mbf Spa | CAPPING HEAD FOR CAPPING MACHINE FOR THE APPLICATION OF CAPS ON CONTAINERS IN PARTICULAR BOTTLES OR SIMILAR |
EP2427403A1 (en) * | 2009-05-07 | 2012-03-14 | Sidel S.p.A. | Capping head and apparatus for the capping of bottles |
FR2947247B1 (en) * | 2009-06-29 | 2011-07-15 | Soc D Const Generique Internat Socoge International | DEVICE FOR CRIMPING CRIMPING ELEMENTS ON BOTTLES |
DE102009040977B4 (en) * | 2009-09-11 | 2022-12-15 | Krones Aktiengesellschaft | Container treatment system and a container treatment method for treating containers that can be filled with a product |
ITBO20130179A1 (en) | 2013-04-22 | 2014-10-23 | Azionaria Costruzioni Acma Spa | PRODUCT PACKAGING PLANT. |
WO2015071868A2 (en) * | 2013-11-15 | 2015-05-21 | Rejves S.R.L. | Apparatus for screw capping while in pursuit and working unit comprising said apparatus |
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- 2015-12-17 EP EP15200879.3A patent/EP3034457B1/en active Active
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ES2743474T3 (en) | 2020-02-19 |
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