US20070137144A1 - Machine for the production of groups of roll products - Google Patents
Machine for the production of groups of roll products Download PDFInfo
- Publication number
- US20070137144A1 US20070137144A1 US11/640,779 US64077906A US2007137144A1 US 20070137144 A1 US20070137144 A1 US 20070137144A1 US 64077906 A US64077906 A US 64077906A US 2007137144 A1 US2007137144 A1 US 2007137144A1
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- Prior art keywords
- paddle
- groups
- paddles
- configuration
- product
- 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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B25/00—Packaging other articles presenting special problems
- B65B25/14—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form
- B65B25/146—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form packaging rolled-up articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
- B65B35/30—Arranging and feeding articles in groups
- B65B35/44—Arranging and feeding articles in groups by endless belts or chains
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
- B65B59/001—Arrangements to enable adjustments related to the product to be packaged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
- B65B59/005—Adjustable conveying means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/26—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising a series of co-operating units, e.g. interconnected by pivots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/04—Devices for feeding articles or materials to conveyors for feeding articles
- B65G47/06—Devices for feeding articles or materials to conveyors for feeding articles from a single group of articles arranged in orderly pattern, e.g. workpieces in magazines
- B65G47/08—Devices for feeding articles or materials to conveyors for feeding articles from a single group of articles arranged in orderly pattern, e.g. workpieces in magazines spacing or grouping the articles during feeding
- B65G47/084—Devices for feeding articles or materials to conveyors for feeding articles from a single group of articles arranged in orderly pattern, e.g. workpieces in magazines spacing or grouping the articles during feeding grouping articles in a predetermined 2-dimensional pattern
- B65G47/088—Devices for feeding articles or materials to conveyors for feeding articles from a single group of articles arranged in orderly pattern, e.g. workpieces in magazines spacing or grouping the articles during feeding grouping articles in a predetermined 2-dimensional pattern cylindrical articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
- B65G47/66—Fixed platforms or combs, e.g. bridges between conveyors
Definitions
- This invention relates to a machine for the production of groups of roll products, in particular, but without limiting the scope of the invention, rolls of toilet paper or kitchen paper.
- machines of this kind for producing groups of roll products consist of a plurality stations, located in line along the machine itself, where the products are manipulated and divided up to form first the groups, of products and then the final packages.
- the stations basically comprise:
- the production line may comprise a series of stations for conveying and positioning a plurality of these groups (also referred to as batch—which may include one or more wrapped groups of products) for the end of line stations where the batches can be bagged and palletized, ready for storage or transportation.
- a plurality of these groups also referred to as batch—which may include one or more wrapped groups of products
- the structures that prepare the products for the end of line stations normally comprise the following, in current machines: a system for conveying and, if necessary, diverting the products (with belts and related comb pushers); downstream of this system, there is a product straightening unit that turns each group of products by 90° and to form batches of product groups that are advanced by other comb pushers towards an end bagging machine (usually in a direction perpendicular to the direction in which the batches are fed to the straightening unit) or towards units for picking up and palletizing the groups of products.
- the straightening unit which may comprise the following (see FIGS. 1 and 2 illustrating two such units as known in prior art: a pair of parallel endless chains C trained around pairs of power-driven toothed wheels R; the chains C are associated with a plurality of paddles P, protruding radially from the chains C, for picking up, tipping up by 90° (from a “lying down” to an upright position) and moving the incoming groups of products G from the conveyor system.
- Each paddle P is substantially L-shaped to be able to stably accommodate one side L 1 and the base L 2 of the incoming group G and to turn the latter by ninety degrees.
- the side of the paddle P that accommodates the base L 2 is linked to a pair of guides S associated with the pair of chains C.
- the number and size of the paddles P mounted on the chains C varies in accordance with the size and configuration of the product groups G made by the machine.
- roll products come in several different diameter sizes and at least two different types of packs (single or double layer) which means that many sets of paddles P of different widths are required to handle all pack sizes (for current pack sizes, five different sets are used, distinguished by the different colors of the guides).
- the pack sizes vary in height according to the packing style, that is to say, the height may be that of a single product or the sum of different products placed one after the other within the same group of products.
- the paddle dimension L 1 must vary in length according to the product group G formed by the machine.
- the product groups G available on the market come in seven different lengths.
- the products can be variously combined to form at least thirty-five different configurations which the straightening unit must be able to handle.
- the changeover procedure to be performed on this unit consists of the following steps: stopping the machine; removing all the products of the old configuration; manually disconnecting all the paddle P guides S from the chains C; and positioning another set of paddles P for the new configuration, also performed manually by the operator.
- the changeover procedure for a straightening unit is a time-consuming, laborious task and, taking into account that changeovers in machines of this kind are quite frequent, that adds up to a considerable amount of down time, which in turn means a significant reduction in machine productivity as a whole.
- the aim of this invention is to overcome these disadvantages by providing a machine for the production of roll products equipped with a product group straightening unit that is extremely versatile and allows changeover to be performed quickly and without necessitating manual operations on the unit itself.
- this aim is achieved by a machine for the production of groups of roll products comprising the technical characteristics described in one or more of the claims herein.
- FIGS. 1 and 2 are schematic side views showing two different operating configurations of a prior art station in a machine for the production of roll products;
- FIG. 3 is a schematic perspective view from above of a part of the machine for producing product groups according to the invention.
- FIGS. 4 and 5 are, respectively, a schematic side view and a schematic top plan view of the detail E from FIG. 3 , that is to say, of a unit for straightening the groups of products according to the invention, in a first operating configuration;
- FIGS. 6 and 7 are, respectively, a schematic side view and a schematic top plan view of the detail E from FIG. 3 , that is to say, of a unit for straightening the groups of products according to the invention, in a second operating configuration;
- FIG. 8 is a schematic front view, with some parts cut away, of the straightening station of FIG. 4 ;
- FIG. 9 shows a scaled-up detail from FIG. 4 in a schematic side view
- FIG. 10 shows a scaled-up detail from FIG. 6 in a schematic side view
- FIG. 11 is a schematic side view, with some parts cut away in order to better illustrate others, showing an alternative constructional detail of the straightening station illustrated in the drawings listed above;
- FIG. 12 illustrates another embodiment of the straightening station of FIG. 8 .
- the machine according to the invention is used to make groups 4 of products, especially but without restricting the scope of the invention, groups of roll products for household or bathroom use.
- Each of the groups 4 consists of a plurality of products 2 , arranged in groups defining a configuration (that varies in accordance with production requirements, as we shall see in more detail below), wrapped in a sheet of film and closed, for example by heat-sealing.
- a second unit 5 for picking up, turning and grouping a plurality of product groups 4 .
- the first unit 3 may be constructed in different ways, one constructional form being illustrated purely by way of example in FIG. 3 , and enables the groups 4 to be transferred from the stations where the groups 4 are made to the second unit 5 and, hence, to the end of line stations which are not illustrated or described here since they are of known type and do not fall within the scope of this invention.
- the first unit 3 may consist of a pair of belts 3 a and 3 b positioned at an angle to each other to form a system for turning the product groups 4 through 90°.
- the product groups 4 are moved (and, if necessary, two or more groups are placed side by side) by comb pusher means 3 c.
- the second unit 5 consisting of a unit for “straightening” the product groups 4 , is located downstream of the first unit 3 .
- the second unit 5 (see FIGS. 3 to 7 ) comprises a motorized endless drive system 6 mounting a plurality of paddles 7 protruding radially from the path line P 6 of the drive system 6 ; each paddle 7 forms, with the next one, a space S for receiving a product group 4 at a position where the paddle 7 is co-planar with the first unit 3 , or more specifically, with the upper section 3 b (see FIG. 4 ) and is turned through an angle ⁇ of at least ninety degrees in the direction, indicated by the arrow S 6 , in which the drive system 6 advances.
- the product groups 4 are positioned side by side on the upper section of the drive system 6 , and are then expelled from the respective spaces S by comb pusher means 100 which move them towards the end of line units (not illustrated).
- each of the paddles 7 consists of an element divided into an upper section 16 , constituting a part that supports and pushes the groups 4 of products, and an open lower section;
- means 17 are provided for adjusting the supporting depth H 7 of the product groups 4 on the paddles 7 according to the type of configuration, and act at least along an arc-shaped section of the paddle 7 drive path P 6 between the above mentioned product group 4 pickup area, where each paddle 7 lies in the same plane as the first unit 3 , and the position of the paddle 7 when it has been turned through the above mentioned right angle ⁇ .
- each paddle 7 may consist of a flat member having the shape of an upturned U where the two legs 14 and 15 are connected to the drive system 6 , and where the connecting section 16 of the U defines at least a part of the space for picking up and containing the product groups 4 and a central opening 16 g.
- the U shape of the paddles 7 described in this specification is a preferred non-limiting embodiment of them and, as shown in FIG. 12 , the paddles 7 might not have the leg 14 and might be connected by the other leg only to a single drive system 6 a or 6 b , thus forming a rotated L shape: this would create a unit 5 with a lighter structure (without one of the wheel and chain drive systems) while maintaining the same level of operating efficiency.
- each paddle 7 makes it possible to define this supporting depth adjustment on the second unit 5 .
- the groups 4 of products 2 may have a plurality of additional configurations defined by a second dimension H (longitudinal dimension of the group 4 ) defined by the height or the sum of superposed heights of the wrapped roll products 2 , and included at least between a third, minimum sub-configuration LA 3 in which each product 2 has a first height H 1 and a fourth, maximum sub-configuration LA 4 in which each product 2 has a second height H 2 that is greater than the first height H 1 (see FIGS. 9 and 10 ).
- the means 17 for adjusting the supporting depth H 7 of each paddle 7 may comprise, in a first embodiment:
- first actuating means 20 for moving the arc-shaped surface 18 along the openings 16 g of the paddles 7 between two or more operating positions (see arrows F 20 ), according to configurations, included between a first, advanced minimum depth operating position, where the arc-shaped surface 18 is substantially in contact with the wall 16 of the passing paddles 7 , and a second, retracted, maximum depth position where the arc-shaped surface 18 is away from the passing walls 16 , so as to vary the supporting depth H 7 of the passing paddles 7 according to the above mentioned third and fourth sub-configurations LA 3 and LA 4 .
- the straight surface 19 since the straight surface 19 is positioned at a fixed distance, it must be positioned at a distance H 3 from the paddle 7 wall 16 that is smaller than the height H 1 of the third, minimum sub-configuration LA 3 so as to always allow contact of the wall 16 with any configuration after turning and then lowering the product group 4 along the wall 16 of the paddle 7 until contact with the surface 19 .
- the means 17 for adjusting the supporting depth H 7 of each paddle 7 may act both along the arc-shaped section and along a straight operating section of the path P 6 , that is to say, along the active sections of the second unit 5 , so that the supporting depth H 7 of each paddle 7 remains constant between the area where the product groups 4 are received and the area where the product groups 4 are expelled.
- the means 17 for adjusting the supporting depth H 7 may comprise:
- actuating means 20 for moving both the arc-shaped surface 18 and the second surface 19 along the passing openings 16 g between two or more operating positions, according to the configurations, included between the first, advanced minimum depth operating position and the second, retracted, maximum depth position.
- actuating means 20 may be divided into:
- first actuating means 20 a acting on the first, arc-shaped surface 18 in such a way as to move it between the operating positions (see arrows F 20 a );
- second actuating means 20 b acting on the second, straight surface 19 in such a way as to move it in height between the operating positions in synchrony with the first actuating means 20 a , while keeping the second surface 19 perpendicular to the passing paddles 7 at all times (see arrows F 20 b ).
- the surfaces 18 and 19 themselves are connected to each other by a third, flexible transition surface 21 , with tubular cross section, which forms a telescoping sliding connection between the respective ends of the two surfaces 18 and 19 , joined to the third surface 21 itself and permitting the double adjustment of the first and second surfaces 18 and 19 by causing the two surfaces 18 and 19 to slide relative to the third, flexible tubular surface 21 (see arrows F 21 ).
- the actuating means 20 , 20 a , 20 b can be activated by the machine 1 control unit 13 so that all the adjustments described above are coordinated.
- the depth H 16 of the wall 16 must be at least equal to the height of the third, minimum sub-configuration LA 3 ;
- the wall 16 and the first arc-shaped surface 18 in the second, retracted maximum depth position must have a total depth H 7 at least equal to the fourth, maximum sub-configuration LA 4 , that is to say, the sum of H 16 (fixed) and H 18 (variable, starting from the lower end of the wall 16 ) must be equal to the fourth, maximum sub-configuration LA 4 .
- the spacing between the configuration depth H 7 adjustment surface 18 and the paddles 7 means that the surface 18 also acts as a means for relieving the stress created by the pressure on the packages already positioned on the paddles 7 (applied by the product groups 4 positioned on the first feed unit 3 ).
- control unit 13 can control the actuating means 20 , 20 a and 20 b in such a way as to enable a forward movement of the first, arc-shaped surface 18 , past the predetermined height H, depending on the configuration, and then a guided return movement of the surface 18 itself with the advancing product groups 4 so as to produce said relief action during the feeding of the product groups 4 themselves.
- the second unit 5 also comprises:
- each of the groups 7 a and 7 b being connected respectively to a first and a second drive system 6 a and 6 b , in such a way that the paddles 7 of the two groups are positioned alternately along the endless path P 6 ;
- the paddles 7 of the two groups 7 a , 7 b are equally spaced to form a working containment space S 1 (see FIGS. 4 and 5 ), and in the second position, the paddles 7 of the two groups 7 a , 7 b are positioned close together in pairs to form a second working containment space S 2 (see FIGS. 6 and 7 ) that is larger than the first containment space S 1 defined by the first position.
- only the group 7 b of paddles 7 defines respective spaces S for containing the groups 4 of products 2 .
- the product groups 4 may have any of a plurality of different configurations according to a first (transversal) dimension LA and included at least between a first, single-layer configuration and a second, double-layer configuration of wrapped products 2 (shown in FIGS. 5 and 7 ); each first and second configuration being subdivided into two or more sub-configurations defined by a first, minimum sub-configuration LA 1 in which each product 2 has a first diameter D 1 , and a second, maximum sub-configuration LA 2 in which each product 2 has a second diameter D 2 that is greater than the first diameter D 1 .
- the two positions of the groups 7 a and 7 b of paddles 7 make it possible to accommodate all the above mentioned configurations and sub-configurations.
- each paddle 7 of both groups 7 a , 7 b forms a first working containment space S 1 , defined as the distance between two consecutive paddles 7 , designed to permit the passage and containment of the first configuration, including the respective sub-configurations between the first and the second, minimum and maximum sub-configuration LA 1 and LA 2 (again, see FIGS. 4 and 5 ).
- each paddle 7 of the group 7 b (fixed) forms a second working containment space S 2 , defined as the distance between the working containment paddle 7 and the next or preceding paddle 7 placed side by side with the next or preceding working containment paddle 7 , designed to permit the passage and containment of the second configuration, including the respective sub-configurations between the first and the second, minimum and maximum sub-configuration LA 1 and LA 2 .
- the size of the spaces S 1 and S 2 delimited by the two possible positions of the groups 7 a and 7 b of paddles 7 must satisfy, for each grouping of single- and double-layer configurations, two essential conditions: the spaces S 1 and S 2 must be able to accommodate the second maximum sub-configuration LA 2 (maximum overall and diameter dimension of the product 2 ) and the first sub-configuration LA 1 (minimum overall and diameter dimension of the product 2 ) must not be able to turn round on itself (i.e. be positioned sideways or aslant) within the space S 1 or S 2 as the paddles 7 move around and during subsequent expulsion by the pusher means 100 .
- the spaces S 1 and S 2 must be able to accommodate the second maximum sub-configuration LA 2 (maximum overall and diameter dimension of the product 2 ) and the first sub-configuration LA 1 (minimum overall and diameter dimension of the product 2 ) must not be able to turn round on itself (i.e. be positioned sideways or aslant) within the space S 1 or
- first and second drive systems 6 a and 6 b each comprise (see FIG. 8 ):
- pairs 9 a , 9 b of endless drive chains trained around two respective pairs 10 a , 10 b of toothed wheels kinematically connected to each other and to a single motor 11 ;
- the pairs 9 a , 9 b of chains mount the first group 7 a and the second group 7 b of paddles 7 , respectively;
- the adjustment means 8 may comprise a mechanical clutch 12 positioned and acting on the drive system 6 a and designed to change between two separate states, in the first of which the clutch 12 simultaneously transmits drive to both the drive systems 6 a and 6 b , causing the groups 7 a , 7 b of paddles 7 to move normally along the endless path P 6 , and in the second of which the clutch 12 does not transmit drive to one of the drive systems, namely, the one labeled 6 b , so as to keep the respective group 7 b of paddles 7 stationary while the group 7 a of paddles 7 connected to the other drive system 6 a moves in such a way as to vary its relative distance from the other group 7 b of paddles 7 between the two above mentioned relative operating positions (see arrows F 7 a ).
- the mechanical clutch 12 may be operated manually or automatically by a machine 1 control unit 13 , represented schematically as a block in the drawings.
- the straightening unit can be adjusted in two simple steps and without having to operate directly on the paddles or to change the paddles every time changeover is required.
- the straightening unit therefore, comprises a set number of paddles that can be adjusted, even automatically, in just two steps:
- the first step regards the transversal dimension (single or double layer, independently of the diameter of the products) between two paddle positions (close together or spaced apart);
- the other step regards the height of the products, adjusted using only the single arc-shaped section or the arc-shaped section and the mobile straight section in order to vary the supporting height of the product groups on the paddles, again quickly and easily and without having to substitute the paddles on the unit.
- the straightening unit therefore fully achieves the aforementioned aims thanks to a simple, optimized structure that enables changeovers to be performed quickly and accurately without altering the basic architecture of the unit but optimizing and simplifying the cross adjustment system on the many possible product group configurations.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Attitude Control For Articles On Conveyors (AREA)
- Metal Rolling (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
- This invention relates to a machine for the production of groups of roll products, in particular, but without limiting the scope of the invention, rolls of toilet paper or kitchen paper.
- It is very well known that machines of this kind for producing groups of roll products consist of a plurality stations, located in line along the machine itself, where the products are manipulated and divided up to form first the groups, of products and then the final packages.
- In practice, the stations basically comprise:
- a unit for feeding the roll products;
- a unit for dividing the roll products into groups;
- a unit for wrapping and sealing the groups of products.
- In addition to these, the production line may comprise a series of stations for conveying and positioning a plurality of these groups (also referred to as batch—which may include one or more wrapped groups of products) for the end of line stations where the batches can be bagged and palletized, ready for storage or transportation.
- More specifically, the structures that prepare the products for the end of line stations normally comprise the following, in current machines: a system for conveying and, if necessary, diverting the products (with belts and related comb pushers); downstream of this system, there is a product straightening unit that turns each group of products by 90° and to form batches of product groups that are advanced by other comb pushers towards an end bagging machine (usually in a direction perpendicular to the direction in which the batches are fed to the straightening unit) or towards units for picking up and palletizing the groups of products.
- This specification is concerned in particular with the straightening unit, which may comprise the following (see
FIGS. 1 and 2 illustrating two such units as known in prior art: a pair of parallel endless chains C trained around pairs of power-driven toothed wheels R; the chains C are associated with a plurality of paddles P, protruding radially from the chains C, for picking up, tipping up by 90° (from a “lying down” to an upright position) and moving the incoming groups of products G from the conveyor system. Each paddle P is substantially L-shaped to be able to stably accommodate one side L1 and the base L2 of the incoming group G and to turn the latter by ninety degrees. - The side of the paddle P that accommodates the base L2 is linked to a pair of guides S associated with the pair of chains C.
- As clearly shown in
FIGS. 1 and 2 , the number and size of the paddles P mounted on the chains C varies in accordance with the size and configuration of the product groups G made by the machine. - At present, roll products come in several different diameter sizes and at least two different types of packs (single or double layer) which means that many sets of paddles P of different widths are required to handle all pack sizes (for current pack sizes, five different sets are used, distinguished by the different colors of the guides).
- To this must be added the fact that the pack sizes vary in height according to the packing style, that is to say, the height may be that of a single product or the sum of different products placed one after the other within the same group of products.
- In this case, too, the paddle dimension L1 must vary in length according to the product group G formed by the machine. At present, the product groups G available on the market come in seven different lengths.
- The products can be variously combined to form at least thirty-five different configurations which the straightening unit must be able to handle.
- The changeover procedure to be performed on this unit consists of the following steps: stopping the machine; removing all the products of the old configuration; manually disconnecting all the paddle P guides S from the chains C; and positioning another set of paddles P for the new configuration, also performed manually by the operator.
- As may be inferred from this summary description, the changeover procedure for a straightening unit is a time-consuming, laborious task and, taking into account that changeovers in machines of this kind are quite frequent, that adds up to a considerable amount of down time, which in turn means a significant reduction in machine productivity as a whole.
- The aim of this invention is to overcome these disadvantages by providing a machine for the production of roll products equipped with a product group straightening unit that is extremely versatile and allows changeover to be performed quickly and without necessitating manual operations on the unit itself.
- According to the invention, this aim is achieved by a machine for the production of groups of roll products comprising the technical characteristics described in one or more of the claims herein.
- The technical characteristics of the invention, with reference to the above aims, are clearly described in the claims below and its advantages are apparent from the detailed description which follows, with reference to the accompanying drawings which illustrate preferred embodiments of the invention provided merely by way of example without restricting the scope of the inventive concept, and in which:
-
FIGS. 1 and 2 are schematic side views showing two different operating configurations of a prior art station in a machine for the production of roll products; -
FIG. 3 is a schematic perspective view from above of a part of the machine for producing product groups according to the invention; -
FIGS. 4 and 5 are, respectively, a schematic side view and a schematic top plan view of the detail E fromFIG. 3 , that is to say, of a unit for straightening the groups of products according to the invention, in a first operating configuration; -
FIGS. 6 and 7 are, respectively, a schematic side view and a schematic top plan view of the detail E fromFIG. 3 , that is to say, of a unit for straightening the groups of products according to the invention, in a second operating configuration; -
FIG. 8 is a schematic front view, with some parts cut away, of the straightening station ofFIG. 4 ; -
FIG. 9 shows a scaled-up detail fromFIG. 4 in a schematic side view; -
FIG. 10 shows a scaled-up detail fromFIG. 6 in a schematic side view; -
FIG. 11 is a schematic side view, with some parts cut away in order to better illustrate others, showing an alternative constructional detail of the straightening station illustrated in the drawings listed above; -
FIG. 12 illustrates another embodiment of the straightening station ofFIG. 8 . - With reference to the accompanying drawings, and in particular FIGS. 3 to 7, the machine according to the invention is used to make
groups 4 of products, especially but without restricting the scope of the invention, groups of roll products for household or bathroom use. - Each of the
groups 4 consists of a plurality ofproducts 2, arranged in groups defining a configuration (that varies in accordance with production requirements, as we shall see in more detail below), wrapped in a sheet of film and closed, for example by heat-sealing. - The forming of the
individual groups 4 of products is not described or illustrated in this specification since it is accomplished by known stations and units that do not strictly form part of this invention. - The part of the machine which this specification is concerned with and which is labeled 1 in its entirety, comprises at least the following along a feed line A:
- a
first unit 3 for conveying theproduct groups 4 one after the other towards - a
second unit 5 for picking up, turning and grouping a plurality ofproduct groups 4. - The
first unit 3 may be constructed in different ways, one constructional form being illustrated purely by way of example inFIG. 3 , and enables thegroups 4 to be transferred from the stations where thegroups 4 are made to thesecond unit 5 and, hence, to the end of line stations which are not illustrated or described here since they are of known type and do not fall within the scope of this invention. - The
first unit 3 may consist of a pair ofbelts product groups 4 through 90°. Theproduct groups 4 are moved (and, if necessary, two or more groups are placed side by side) by comb pusher means 3 c. - The
second unit 5, consisting of a unit for “straightening” theproduct groups 4, is located downstream of thefirst unit 3. - The second unit 5 (see FIGS. 3 to 7) comprises a motorized
endless drive system 6 mounting a plurality ofpaddles 7 protruding radially from the path line P6 of thedrive system 6; eachpaddle 7 forms, with the next one, a space S for receiving aproduct group 4 at a position where thepaddle 7 is co-planar with thefirst unit 3, or more specifically, with theupper section 3 b (seeFIG. 4 ) and is turned through an angle α of at least ninety degrees in the direction, indicated by the arrow S6, in which thedrive system 6 advances. - Once turned, the
product groups 4 are positioned side by side on the upper section of thedrive system 6, and are then expelled from the respective spaces S by comb pusher means 100 which move them towards the end of line units (not illustrated). - As shown in FIGS. 4 to 11, in the second unit 5:
- each of the
paddles 7 consists of an element divided into anupper section 16, constituting a part that supports and pushes thegroups 4 of products, and an open lower section; and -
means 17 are provided for adjusting the supporting depth H7 of theproduct groups 4 on thepaddles 7 according to the type of configuration, and act at least along an arc-shaped section of thepaddle 7 drive path P6 between the above mentionedproduct group 4 pickup area, where eachpaddle 7 lies in the same plane as thefirst unit 3, and the position of thepaddle 7 when it has been turned through the above mentioned right angle α. - More specifically, (with reference also to FIGS. 8 to 10), each
paddle 7 may consist of a flat member having the shape of an upturned U where the twolegs drive system 6, and where the connectingsection 16 of the U defines at least a part of the space for picking up and containing theproduct groups 4 and acentral opening 16 g. - The U shape of the
paddles 7 described in this specification is a preferred non-limiting embodiment of them and, as shown inFIG. 12 , thepaddles 7 might not have theleg 14 and might be connected by the other leg only to asingle drive system unit 5 with a lighter structure (without one of the wheel and chain drive systems) while maintaining the same level of operating efficiency. - The characteristic constructional form of each
paddle 7, combined with the fact (as described in more detail below) that there is a set number ofpaddles 7, makes it possible to define this supporting depth adjustment on thesecond unit 5. - This adjustment is necessary because, besides the above mentioned configurations, the
groups 4 ofproducts 2 may have a plurality of additional configurations defined by a second dimension H (longitudinal dimension of the group 4) defined by the height or the sum of superposed heights of the wrappedroll products 2, and included at least between a third, minimum sub-configuration LA3 in which eachproduct 2 has a first height H1 and a fourth, maximum sub-configuration LA4 in which eachproduct 2 has a second height H2 that is greater than the first height H1 (seeFIGS. 9 and 10 ). - More specifically (again see
FIGS. 9 and 10 ), themeans 17 for adjusting the supporting depth H7 of eachpaddle 7 may comprise, in a first embodiment: - an arc-
shaped surface 18 positioned and operating in the arc-shaped section of the path P6 at the opening 16 g defined by the U shape of eachpassing paddle 7; - a straight,
static surface 19 forming the base of each containment space S and connected to the arc-shaped surface 18; - first actuating means 20 for moving the arc-
shaped surface 18 along theopenings 16 g of thepaddles 7 between two or more operating positions (see arrows F20), according to configurations, included between a first, advanced minimum depth operating position, where the arc-shaped surface 18 is substantially in contact with thewall 16 of thepassing paddles 7, and a second, retracted, maximum depth position where the arc-shaped surface 18 is away from thepassing walls 16, so as to vary the supporting depth H7 of thepassing paddles 7 according to the above mentioned third and fourth sub-configurations LA3 and LA4. - Obviously, in this situation, since the
straight surface 19 is positioned at a fixed distance, it must be positioned at a distance H3 from thepaddle 7wall 16 that is smaller than the height H1 of the third, minimum sub-configuration LA3 so as to always allow contact of thewall 16 with any configuration after turning and then lowering theproduct group 4 along thewall 16 of thepaddle 7 until contact with thesurface 19. - In an alternative embodiment (illustrated schematically in
FIG. 11 ), themeans 17 for adjusting the supporting depth H7 of eachpaddle 7 may act both along the arc-shaped section and along a straight operating section of the path P6, that is to say, along the active sections of thesecond unit 5, so that the supporting depth H7 of eachpaddle 7 remains constant between the area where theproduct groups 4 are received and the area where theproduct groups 4 are expelled. - In this embodiment, the
means 17 for adjusting the supporting depth H7 may comprise: - the first arc-
shaped surface 18 positioned and operating in the arc-shaped section of the path P6 at the opening 16 g defined by the U shape of eachpassing paddle 7; - a second, straight,
mobile surface 19 forming the base of each containment space S and connected to the arc-shaped surface 18; - actuating means 20 for moving both the arc-
shaped surface 18 and thesecond surface 19 along thepassing openings 16 g between two or more operating positions, according to the configurations, included between the first, advanced minimum depth operating position and the second, retracted, maximum depth position. - In this alternative embodiment, the actuating means 20 may be divided into:
- first actuating means 20 a acting on the first, arc-shaped
surface 18 in such a way as to move it between the operating positions (see arrows F20 a); and - second actuating means 20 b acting on the second,
straight surface 19 in such a way as to move it in height between the operating positions in synchrony with the first actuating means 20 a, while keeping thesecond surface 19 perpendicular to the passingpaddles 7 at all times (see arrows F20 b). - To keep the transition between the two
surfaces surfaces flexible transition surface 21, with tubular cross section, which forms a telescoping sliding connection between the respective ends of the twosurfaces third surface 21 itself and permitting the double adjustment of the first andsecond surfaces surfaces - Advantageously, the actuating means 20, 20 a, 20 b can be activated by the
machine 1control unit 13 so that all the adjustments described above are coordinated. - To enable all the above mentioned second configurations of the
product groups 4 included between the third and fourth sub-configurations LA3 and LA4 to be picked up correctly: - the depth H16 of the
wall 16 must be at least equal to the height of the third, minimum sub-configuration LA3; and - the
wall 16 and the first arc-shapedsurface 18 in the second, retracted maximum depth position must have a total depth H7 at least equal to the fourth, maximum sub-configuration LA4, that is to say, the sum of H16 (fixed) and H18 (variable, starting from the lower end of the wall 16) must be equal to the fourth, maximum sub-configuration LA4. - The spacing between the configuration depth
H7 adjustment surface 18 and thepaddles 7 means that thesurface 18 also acts as a means for relieving the stress created by the pressure on the packages already positioned on the paddles 7 (applied by theproduct groups 4 positioned on the first feed unit 3). - This is possible because the
control unit 13 can control the actuating means 20, 20 a and 20 b in such a way as to enable a forward movement of the first, arc-shapedsurface 18, past the predetermined height H, depending on the configuration, and then a guided return movement of thesurface 18 itself with the advancingproduct groups 4 so as to produce said relief action during the feeding of theproduct groups 4 themselves. - This enables the
paddles 7 to rotate theproduct groups 4 more easily since thepaddle 7 does not have a base attached under it acting as a brake under the axial thrust of theproduct groups 4. - Still with reference to FIGS. 4 to 7, the
second unit 5 also comprises: - a set number of the
paddles 7; - a division of the
paddles 7 into twodistinct groups groups second drive system paddles 7 of the two groups are positioned alternately along the endless path P6; - means 8 for adjusting at least one of the two groups of
paddles 7—in this case, the one labeled 7 a—relative to theother group 7 b, in such a way as to define two different relative operating positions between the twogroups paddles 7. - In the first position, the
paddles 7 of the twogroups FIGS. 4 and 5 ), and in the second position, thepaddles 7 of the twogroups FIGS. 6 and 7 ) that is larger than the first containment space S1 defined by the first position. - In other words, irrespective of the plurality of possible configurations of the
product 2 groups 4 (which we will see in more detail below), there are only two positions that can be adopted by thepaddles 7 —in a set number on thedrive systems - More specifically, in the second operating position, only the
group 7 b ofpaddles 7 defines respective spaces S for containing thegroups 4 ofproducts 2. - Looking more closely at the details of the invention, the
product groups 4 may have any of a plurality of different configurations according to a first (transversal) dimension LA and included at least between a first, single-layer configuration and a second, double-layer configuration of wrapped products 2 (shown inFIGS. 5 and 7 ); each first and second configuration being subdivided into two or more sub-configurations defined by a first, minimum sub-configuration LA1 in which eachproduct 2 has a first diameter D1, and a second, maximum sub-configuration LA2 in which eachproduct 2 has a second diameter D2 that is greater than the first diameter D1. - The two positions of the
groups paddles 7 make it possible to accommodate all the above mentioned configurations and sub-configurations. - More specifically, at the first operating position, each
paddle 7 of bothgroups consecutive paddles 7, designed to permit the passage and containment of the first configuration, including the respective sub-configurations between the first and the second, minimum and maximum sub-configuration LA1 and LA2 (again, seeFIGS. 4 and 5 ). - At the second operating position, each
paddle 7 of thegroup 7 b (fixed) forms a second working containment space S2, defined as the distance between the workingcontainment paddle 7 and the next or precedingpaddle 7 placed side by side with the next or preceding workingcontainment paddle 7, designed to permit the passage and containment of the second configuration, including the respective sub-configurations between the first and the second, minimum and maximum sub-configuration LA1 and LA2. - In short, the size of the spaces S1 and S2 delimited by the two possible positions of the
groups paddles 7 must satisfy, for each grouping of single- and double-layer configurations, two essential conditions: the spaces S1 and S2 must be able to accommodate the second maximum sub-configuration LA2 (maximum overall and diameter dimension of the product 2) and the first sub-configuration LA1 (minimum overall and diameter dimension of the product 2) must not be able to turn round on itself (i.e. be positioned sideways or aslant) within the space S1 or S2 as thepaddles 7 move around and during subsequent expulsion by the pusher means 100. - Looking in more detail at the operating structure, the first and
second drive systems FIG. 8 ): - two
pairs respective pairs single motor 11; thepairs first group 7 a and thesecond group 7 b ofpaddles 7, respectively; - the above mentioned adjustment means 8 operating between the two
pairs single motor 11. - Purely by way of example, without limiting the scope of the invention, the adjustment means 8 may comprise a mechanical clutch 12 positioned and acting on the
drive system 6 a and designed to change between two separate states, in the first of which the clutch 12 simultaneously transmits drive to both thedrive systems groups paddles 7 to move normally along the endless path P6, and in the second of which the clutch 12 does not transmit drive to one of the drive systems, namely, the one labeled 6 b, so as to keep therespective group 7 b ofpaddles 7 stationary while thegroup 7 a ofpaddles 7 connected to theother drive system 6 a moves in such a way as to vary its relative distance from theother group 7 b ofpaddles 7 between the two above mentioned relative operating positions (see arrows F7 a). - The mechanical clutch 12 may be operated manually or automatically by a
machine 1control unit 13, represented schematically as a block in the drawings. - The cascade connection with the toothed wheels of the two
drive systems - In a machine with this structure, therefore, the straightening unit can be adjusted in two simple steps and without having to operate directly on the paddles or to change the paddles every time changeover is required.
- The straightening unit, therefore, comprises a set number of paddles that can be adjusted, even automatically, in just two steps:
- the first step regards the transversal dimension (single or double layer, independently of the diameter of the products) between two paddle positions (close together or spaced apart);
- the other step regards the height of the products, adjusted using only the single arc-shaped section or the arc-shaped section and the mobile straight section in order to vary the supporting height of the product groups on the paddles, again quickly and easily and without having to substitute the paddles on the unit.
- The straightening unit therefore fully achieves the aforementioned aims thanks to a simple, optimized structure that enables changeovers to be performed quickly and accurately without altering the basic architecture of the unit but optimizing and simplifying the cross adjustment system on the many possible product group configurations.
- This significantly reduces unit down time due to changeovers, with obvious benefits in terms of machine productivity as a whole.
- The invention described has evident industrial applications and can be modified an adapted in many ways without thereby departing from the scope of the inventive concept. Moreover, all the details of the invention may be substituted by technically equivalent elements.
Claims (23)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000773A ITBO20050773A1 (en) | 2005-12-20 | 2005-12-20 | MACHINE FOR THE PRODUCTION OF GROUPS OF ROLLED PRODUCTS |
ITBO2005A000773 | 2005-12-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070137144A1 true US20070137144A1 (en) | 2007-06-21 |
Family
ID=37872498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/640,779 Abandoned US20070137144A1 (en) | 2005-12-20 | 2006-12-18 | Machine for the production of groups of roll products |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070137144A1 (en) |
EP (1) | EP1801016B1 (en) |
AT (1) | ATE404434T1 (en) |
DE (1) | DE602006002232D1 (en) |
IT (1) | ITBO20050773A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140223865A1 (en) * | 2011-02-15 | 2014-08-14 | The Procter & Gamble Company | Packages for rolled products |
US9205994B2 (en) | 2011-09-19 | 2015-12-08 | The Procter & Gamble Company | Methods for transferring items |
WO2017169432A1 (en) * | 2016-03-30 | 2017-10-05 | 日清食品ホールディングス株式会社 | Item transporting device |
CN107776954A (en) * | 2017-10-30 | 2018-03-09 | 厦门佳创科技股份有限公司 | Sanitary towel conveying device and packaging machine |
JP2018127230A (en) * | 2017-02-06 | 2018-08-16 | 株式会社オーエム機械 | Storable number variable transfer system |
CN110589081A (en) * | 2019-09-23 | 2019-12-20 | 楚天科技股份有限公司 | Cartoning machine feed arrangement and dress box system |
US20200071007A1 (en) * | 2017-05-16 | 2020-03-05 | Fabio Perini S.P.A. | Wrapping machine |
WO2024052043A1 (en) * | 2022-09-07 | 2024-03-14 | Krones Aktiengesellschaft | System and method for transporting and handling articles |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103350784A (en) * | 2013-07-30 | 2013-10-16 | 新乡东方工业科技有限公司 | Storage separating device |
WO2019064225A1 (en) * | 2017-09-28 | 2019-04-04 | Fabio Perini S.P.A. | Packaging machine with upending and stacking devices |
DE102018111666A1 (en) | 2018-05-15 | 2019-11-21 | R. Weiss Verpackungstechnik Gmbh & Co. Kg | Method for automatic packaging of at least two parts |
FR3081850A1 (en) * | 2018-05-29 | 2019-12-06 | Gebo Packaging Solutions France | PREPARATION OF BATCHES OF PRODUCTS |
DE102018114157A1 (en) * | 2018-06-13 | 2019-12-19 | Khs Gmbh | Device and method for transporting containers |
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- 2006-12-18 US US11/640,779 patent/US20070137144A1/en not_active Abandoned
- 2006-12-20 DE DE602006002232T patent/DE602006002232D1/en not_active Expired - Fee Related
- 2006-12-20 AT AT06126628T patent/ATE404434T1/en not_active IP Right Cessation
- 2006-12-20 EP EP06126628A patent/EP1801016B1/en active Active
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US2324930A (en) * | 1940-08-02 | 1943-07-20 | Joa Curt G Inc | Stacking and boxing apparatus |
US3902587A (en) * | 1973-04-26 | 1975-09-02 | Tommaso Mori Checcucci | Machine for separating objects of variable shape and transferring them to packaging machines |
US4744201A (en) * | 1986-01-30 | 1988-05-17 | Oscar Mayer | Staging apparatus and method |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140223865A1 (en) * | 2011-02-15 | 2014-08-14 | The Procter & Gamble Company | Packages for rolled products |
US9205994B2 (en) | 2011-09-19 | 2015-12-08 | The Procter & Gamble Company | Methods for transferring items |
US9932179B2 (en) | 2011-09-19 | 2018-04-03 | The Procter & Gamble Company | Methods for transferring items |
WO2017169432A1 (en) * | 2016-03-30 | 2017-10-05 | 日清食品ホールディングス株式会社 | Item transporting device |
JP2018127230A (en) * | 2017-02-06 | 2018-08-16 | 株式会社オーエム機械 | Storable number variable transfer system |
US20200071007A1 (en) * | 2017-05-16 | 2020-03-05 | Fabio Perini S.P.A. | Wrapping machine |
US11505349B2 (en) * | 2017-05-16 | 2022-11-22 | Fabio Perini S.P.A. | Wrapping machine |
CN107776954A (en) * | 2017-10-30 | 2018-03-09 | 厦门佳创科技股份有限公司 | Sanitary towel conveying device and packaging machine |
CN110589081A (en) * | 2019-09-23 | 2019-12-20 | 楚天科技股份有限公司 | Cartoning machine feed arrangement and dress box system |
WO2024052043A1 (en) * | 2022-09-07 | 2024-03-14 | Krones Aktiengesellschaft | System and method for transporting and handling articles |
Also Published As
Publication number | Publication date |
---|---|
ATE404434T1 (en) | 2008-08-15 |
ITBO20050773A1 (en) | 2007-06-21 |
DE602006002232D1 (en) | 2008-09-25 |
EP1801016B1 (en) | 2008-08-13 |
EP1801016A1 (en) | 2007-06-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: TISSUE MACHINERY COMPANY S.P.A., ITALY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DALL'OMO, DAVID;ZAGNONI, CHRISTIAN;REEL/FRAME:018730/0819 Effective date: 20061204 |
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AS | Assignment |
Owner name: TISSUE MACHINERY COMPANY S.P.A., ITALY Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE SPELLING OF THE INVENTOR'S NAME. DOCUMENT PREVIOUSLY RECORDED AT REEL 018730 FRAME 0819;ASSIGNORS:DALL'OMO, DAVIDE;ZAGNONI, CHRISTIAN;REEL/FRAME:018920/0007 Effective date: 20061204 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |