ITUB20159738A1 - TRAVEL STRUCTURE ON SHALLOWS - Google Patents

Description

SIDE SHIFT STRUCTURE

SUMMARY

Side shifter structure, of the type consisting of circulating belt or belt means closed on themselves, wound on motor and idle transmissions and extroversely bearing to juggle spondiform ridges mutually defining consecutive interspaces designed to respectively host, retain and translate a plurality organized in succession of ordered groups of industrial products, especially for interacting with adductor, retention, folding and sealing means of a film enveloping the individual groups for commercial packaging purposes comprising a plurality of parallel circulating belts twinned in two parallel bundles (1, 2) staggered symmetrical in the direction of transport (FI), where in each bundle (1) each single belt (I A, B, C, D,) is coupled coupled with a reciprocal one (2A, B, C, D,) of the other bundle (2 ) associated by means of a comb or side crossbar (3A, B, C, D,) with fixed orientation jouster for apical Biaxial mcratura (11, 12) in the two belts (1A, B, C, D, 2A, B, C, D,) yoked, independently activated by dedicated stepper motors (6A, B, C, D,) in matched pairs (1A, B, C, D, 2A, B , C, D,) through angular packs (4, 5) to the circuits (1, 2) of coaxial and codiametric pulleys (4A, B, C, D, 5A, B, C, D,) with parallel grooves, where in each corner pack (4, 5), in turn, only the pulleys (4A, B, C, D, 5A, B, C, D,) of a specific pair of belts (1A, B, C, D, 2A, B, C, D,) are motorized, while the others are insane.

DETAILED DESCRIPTION

Scope of the technique

In the industrial packaging of groups of single products or single sub-packs of large consumption and medium size, especially when these have characteristics of delicacy and reduced consistency not suitable for tolerating grouping into groups through heat-shrink films, such as rolls of kitchen or toilet paper, are used automatic packing machines that bring groups of objects to interact in wrapping with film of packaging material, usually heat-sealable, which is then folded around the group and finally fixed on the last two open flaps, usually by heat-sealing.

One category of such machines includes conveyor belt circuits, or conveyor belts, carrying outwardly to the circuit boards or consecutive prong lines, interspaced to accommodate in the interspaces between banks or prong lines the products or sub-packs grouped in format, inserted therein. with the interposition of the wrapping film, which is modeled by folding means in constant successive transport steps, with final sealing of the package at the end of the folding and relative release.

Limitations of the prior art

Such devices according to the known art have considerable limits of adaptation to the variation of the format of the groups, or in the regulation of the space between sides or lines of prongs, which must, in essence, be carried out manually, by loosening the locking means, repositioning in the appropriate location within the range of capacity of the conveyor extension in relation to the group, symmetrization and timing of the interspaces for receiving the groups when, as usual, a plurality of locking means are provided on the conveyor extension.

Aims of the invention

The main purpose of the present invention is, in this framework, to provide an innovative and functional structure of side shifter, particularly for packaging machines for wrapping aggregates of industrial products gathered in ordered groups with films of heat-sealable material, such as to be able to achieve automatic variation of the fonnato, or of the interspaces between banks or similar suitable for receiving groups, without the need for any manual intervention.

Another purpose of the present invention is to achieve the previous purpose through a structure which also allows to reduce the overall dimensions of the machine as a whole.

Yet another object of the present invention is to achieve the preceding objects by means of a structure which allows to equip the reference packaging machines by adapting to the existing production lines and without subversion of these which are not specifically related to the reference machine.

A further object of the present invention is to achieve the preceding objects by means of a simple and effective structure, safe in operation and of relatively economic cost in consideration of the results practically achieved with it.

Abstract summary of the solution concept

These and still other objects are all achieved with the side shifter structure according to the present invention, of the type consisting of circulating belt or belt means closed on themselves, wound on motor and idle transmissions and extroversely bearing to juggle mutually defining bank-like projections. consecutive interspaces designed to respectively host, retain and translate a plurality organized as a result of ordered groups of industrial products, especially to interact with adductor means, retainers, folders and welders of a film enveloping the individual groups for commercial packaging purposes comprising a plurality of parallel circulating belts twinned in two parallel bundles (1, 2) staggered symmetrical in the direction of transport (FI), where in each bundle (1) each single belt (1A, B, C, D,) is coupled coupled with a reciprocal one ( 2A, B, C, D,) of the other bundle (2) associated by means of a comb or side rail (3A, B, C, D,) fixed orientation for apical biaxial fulcrum (11, 12) in the two belts (1A, B, C, D, 2A, B, C, D,), independently activated by dedicated stepper motors (6A, B, C, D,) in paired pairs (1A, B, C, D, 2A, B, C, D,) by means of angular packs (4, 5) to the circuits (1, 2) of coaxial and codiametric pulleys (4A, B, C , D, 5A, B, C, D,) with parallel grooves, where in each corner pack (4, 5), in turn, only the pulleys (4A, B, C, D, 5A, B, C, D, ) of a specific pair of belts (1A, B, C, D, 2A, B, C, D,) are motorized, while the others are idle.

Identification of the attached drawings

Further characteristics and advantages of the side shifting structure according to the present invention will become more evident from the following detailed description of a relative preferred but not exclusive embodiment form, represented only by way of non-limiting example in the number seven attached drawings, in which:

Figure 1 illustrates a schematic perspective view of the side shifter structure according to the present invention;

Figure 2 shows a schematic side view thereof of the side shifter structure according to the present invention in a more complex embodiment thereof;

Figures 3 to 7 inclusive illustrate, without restriction of proportion, a side view of five consecutive operational locations of the constituents of the side shift structure according to the present invention in carrying out the functions of automatic packaging of ordered groups of objects.

Static description of the example of realization

With reference to these figures and in particular to figure 1, with 1A, 1 B, 1C and 1D there are indicated from the inside to the outside four belts grouped parallel to each other in a first bundle 1, circling parallel and twinned with another grouping in a second I leave 2 of four parallel belts indicated from inside to outside with 2A, 2B, 2C and 2 D.

The two bundles of belts 1 and 2 are staggered symmetrical, in the direction of transport indicated by the arrows FI, by a feed gap better specified below.

In the first bundle 1 each single belt 1A, 1B, IC and 1D is coupled coupled with a reciprocal single belt 2A, 2B, 2C and 2D of the second bundle 2, yoked by means of respective crosspieces 3 consisting of combs 3A, 3B, 3C and 3D equipped of respective teeth 9; alternatively, the crosspieces 3 can be constituted by sides, not illustrated, but of intuitive perception by imagining the absence of inter-spacing between the teeth 9.

In details:

a first belt 1A of the first bundle 1 is coupled coupled with a first belt 2A of the second bundle 2 yoked by means of a first comb crosspiece 3A; a second belt 1B of the first bundle 1 is coupled coupled with a second belt 2B of the second bundle 2 yoked by means of a second comb crosspiece 3B;

a third belt 1C of the first bundle 1 is coupled coupled with a third belt 2C of the second bundle 2 yoked by means of a third comb crosspiece 3C;

a fourth belt 1D of the first bundle 1 is coupled coupled with a fourth belt 2D of the second bundle 2 yoked by means of a fourth comb crosspiece 3D.

The crosspieces 3 are extended to be fixed to the respective reference belts 1 and 2 by means of opposing brackets 10, projecting apically for different lengths.

The brackets 10 are constrained to the crosspieces 3 in fulcrums 11 and 12, mutually transversely offset by a pitch equal to the advancement gap integrating the offset of the symmetry of the two bundles of belts 1 and 2.

The first bundle of belts 1 is circulated describing a quadrilateral returned to the four corners by respective packs 4 of coaxial and codiamtral pulleys 4A, 4B, 4C and 4D with parallel grooves.

The second bundle of belts 2 circulates describing a quadrilateral returned to the four corners by respective packs 5 of coaxial and codiametrical pulleys 5A, 5B, 5C and 5D with parallel grooves.

Four 6A, 6B, 6C and 6D brushless stepper motors are respectively connected to packs 4 and 5 of pulleys 4A, 4B, 4C, 4L) c 5A, 5B, 5C, 5D via coupling bars 7A, 7B, 7C and 7D and 8A, 8B, 8C and 8D transmission belts.

In each 4c 5 corner pack only the pulley 4A, 4B, 4C, 4D c 5A, 5B, 5C, 5D of a specific pair 4A-5A, 4B-5B, 4C-5C, 4D-5D is motorized, while the others they are crazy.

In details:

the first motor 6A by means of the coupling bar 7A and the transmission belts 8 A drives the driving pulleys 4A and 5A, while the other pulleys 4B, 4C, 4D and 5B, 5C, 5D of those packs 4 and 5 are idle.

The second motor 6B through the coupling bar 7B and the transmission belts 8B drives the driving pulleys 4B and 5B, while the other pulleys 4A, 4C, 4D and 5A, 5C, 5D of those packs 4 and 5 are idle.

The third motor 6C by means of the coupling bar 7C and the transmission belts 8C controls the driving pulleys 4C and 5C, while the other pulleys 4A, 4B, 4D and 5A, 5B, 5D of those packs 4 and 5 are idle.

The fourth motor 6D through the coupling bar 7D and the transmission belts 8D drives the driving pulleys 4D and 5D, while the other pulleys 4A, 4B, 4C and 5A, 5B, 5C of those packs 4 and 5 are idle.

Figure 2 illustrates two orders of four crosspieces 3 consisting of combs 3A, 3B, 3C and 3D which yoke in the first bundle 1 each individual belt 1A, IB, 1C and 1D with a reciprocal single belt 2 A, 2B, 2C and 2D in the second bundle 2.

Figures 3 to 7 including the two bundles of belts 1 and 2 are shown schematized and under-proportioned by squeezing in order to contain the dimensions of the figure, in order to make clearer evidence of what follows.

The numeral 13 denotes as a whole a feeder, schematically illustrated, of products 14, for example rolls of hygienic caria, and with 15 a film of heat-sealable material, fed in parallel above said feeder 13 of products 14.

16 indicates as a whole an elevator of a known type, with three independent elements, suitable for elevating a group of products 14, four in the illustrated embodiment, within the space defined by two consecutive translating arrays of teeth 9 of the side shifter according to the present invention, located against upper guiding and retaining elements 17.

With 18 and 19 two coplanar folding sliders are indicated, respectively located upstream and downstream of the elevator 16 with reference to the direction of advancement of the film 15, below the downstream slider 19 is positioned a sealing element 20 able to engage and disengage the // 7w 15 of heat-sealable material.

With 21 the finished packages of products 14 on an outlet conveyor indicated as a whole with 22 for the functions that are specified below.

Dynamic description of the exemplary embodiment Having thus completed the static description of a preferred example of embodiment of the side shifter structure according to the present invention, as follows in fact the dynamic one passes to operate, that is the relative operation.

The at least four side combs 3A, 3B, 3C, 3D, being connected to respective pairs of independent belts 1A-2A, 1B-2B, 1C-2C, 1D-2D, and being each of said pairs motorized independently, through the respective pulleys 4A-5A, 4B-5B, 4C-5C, 4D-5D of corner packs 4 and 5, the respective transmission belts 8A, 8B, 8C, 8D, the respective coupling bars 7A, 7B, 7 C, 7D and the respective brushless stepping motors 6A, 6B, 6C, 6D, can be adjusted at will in their movement, independently of each other, with the extreme precision allowed by the brushless stepping motors enslaved by a computerized logic.

In this way, with simple electronic programming and the adoption of one of the relative settings, it is possible to vary the consecutive succession interspace of the sides 3A, 3B, 3C, 3D, and of any similar homologs yoked with the same criterion to the pairs of belts 1A- 2A, 1B-2B, 1C-2C, 1D-2D, in their translation in succession, i.e. the format of the packages 21 of products 14 obtained between the sides 3A, 3B, 3C, 3D themselves, as per known technique, with the illustrated in figures 3 to 7 inclusive.

Moreover, the difference with respect to the known technique consists of the fixed orientation of the sides 3A, 3B, 3C, 3D, and of any similar homologs, in their circulation, always blocked to extend downwards even in the passive return phase, allowed by absence of overturning by staggering the longitudinal symmetry between the bundles of belts 1 and 2 by a pitch corresponding to the space between the fulcrums I l and 12 of the crosspieces 3 A, 3B, 3C, 3D in correspondence with the movement inversion sections, allows for space substantially smaller than the side conveyor in the longitudinal direction.

This kinematic mechanism for controlling and activating the travel of the crosspieces 3 A, 3B, 3C, 3D, or of the reeds or sides corresponding to them, allows a considerable increase in the production speed, as the return speed of the crosspieces in the passive and disengagement phase is not conditioned by that of the active stroke, as they are mutually independent, so that with appropriate programming of the electronic logic to which the cynmathisms are enslaved, the speeds of the active stroke and that of the passive stroke can be differentiated, with a pair of duly interspersed combs and / or sides always ready to receive the elevation of the products and disengage themselves in the translation phase.

The immediacy of disengagement of the side or sides, in velvet, without a radial wing encumbrance, further favors the containment of the overall dimensions of the machine and also allows a delicate approach of the pusher to the products, without the sharp blow resulting from impact resulting from radial rotation.

Implementation alternatives

It is obvious that in further alternative embodiments, while still falling within the concept of innovation underlying the example of embodiment illustrated above and claimed below, the side-shifting structure according to the present invention can be implemented with technical and mechanical equivalents, or equipped with further supplementary measures, as well as all the modalities of the related procedural steps can be varied in a manner suitable for the purpose; in particular:

the couplings between the belts of the two bundles can be different and in any actual way alternately crossed with respect to the example of embodiment illustrated;

the motion control and transmission members can alternatively be conceived in any different way suitable for the purpose, as well as the related kinematic mechanisms in any case differently achieved with mechanical alternatives.

Advantages of the invention

As is evident from the above detailed description of a preferred example of embodiment, the side shifter structure according to the present invention offers the advantages corresponding to the achievement of the intended purposes and others:

in fact, a functional, modular, polyvalent and economical solution is integrated with them, suitable for obtaining a side conveyor for the industrial packaging of groups of objects such as to be able to quickly adapt to any type of package format to be obtained.

Scope of the protection invoked

Having thus described the structure of side shifter according to the present invention with reference to one of their preferred embodiments, it will be obvious to want to protect all the possible embodiments with variants of normal implementation for those skilled in the art, which do not modify the invention without departing from the purposes envisaged therein; by this it is meant, both in the foregoing description and in the following claims, to protect all the embodiments and variants that fall within the concept of solution, in the spirit and in the purposes of the invention itself.

LEGEND FOR THE NUMBERS

1) first bundle of belts as a whole

1 A) first belt of the first belt bundle

IB) second belt of the first belt bundle

IC) third belt of the first belt bundle

ID) fourth belt of the first belt bundle

2) second bundle of belts as a whole

2A) first belt of the second belt bundle

2B) second belt of the second belt bundle

2C) third belt of the second belt bundle

2D) fourth belt of the second belt bundle

3) combs

3A) first comb

3B) second comb

3C) third comb

3D) fourth comb

4) corner packs of pulleys of the first belt bundle

4A) first pulley of the angular pack of pulleys of the first belt bundle 4B) second pulley of the angular pack of pulleys of the first belt bundle 4C) third pulley of the angular pack of pulleys of the first belt bundle 4D) fourth pulley of the angular pack of pulleys of the first belt bundle 5) corner packs of pulleys of the second belt bundle

5A) first pulley of the angular pack of pulleys of the second belt bundle 5B) second pulley of the angular pack of pulleys of the second belt bundle 5C) third pulley of the angular pack of pulleys of the second bundle of belts 5D) fourth pulley of the angular pack of pulleys of the second bundle of belts 6) motors

6A) first engine

6B) second engine

6C) third engine

6D) fourth engine

7) engine coupling rods

7A) coupling bar of the first motor 7B) coupling bar of the second motor 7C) coupling bar of the third motor 7D) coupling bar of the fourth motor 8) transmission belts of the motors

8A) transmission belts of the first motor 8B) transmission belts of the second motor 8C) transmission belts of the third motor 8D) transmission belts of the fourth motor 9) teeth of the cross members

10) brackets of the crosspieces

11) fulcrum first bracket of the crosspieces

12) fulcrum of the second bracket of the crosspieces

13) product feeder as a whole 14) products

15) film

16) elevator as a whole

17) upper product guides

18) folder slider

19) folder slider

20) welder

21) products wrapped in packaging

22) output conveyor as a whole

Claims (1)

CLAIMS 1) Side shifter structure, of the type consisting of belt or circulating belt means closed on themselves, wound on motor and idle transmissions and extroversely bearing to juggle spondiform ridges mutually defining consecutive interspaces designed to respectively host, retain and translate an organized plurality as a result of ordered groups of industrial products, especially for interacting with adductor, retention, folding and sealing means of a film enveloping the individual groups for commercial packaging purposes, characterized in that it comprises a plurality of parallel belt means circulating twinned in two parallel beams (1, 2) staggered symmetrical in the direction of transport (FI), where in each bundle (1) each single belt means (1A, B, C, D,) is coupled coupled with a reciprocal one (2A, B, C, D,) of the other bundle (2) associated by means of respective comb or edge means (3A, B, C, D,) with fixed orientation for fulcrum biaxial ature (11, 12) in the two belt means (1A, B, C, D, 2A, B, C, D,) yoked, independently activated by motors (6A, B, C, D,) in paired pairs ( 1A, B, C, D, 2A, B, C, D,) by means of groups (4, 5) of pulley means (4A, B, C, D, 5A, B, C, D,) where in each group (4, 5), only the pulley means (4A, B, C, D, 5A, B, C, D,) of a specific pair of belt means (1A, B, C, D, 2A, B, C, D,) are motorized. Side shifter structure as per the first claim, characterized by the fact of comprising a plurality of parallel belts circulating twinned in two parallel bundles (1, 2) staggered symmetrical in the direction of transport (FI), where in each bundle (1) each single belt (1A, B, C, D,) is coupled coupled with a reciprocal (2A, B, C, D,) of the other bundle (2) associated by means of a comb or side rail (3A, B, C, D, ) fixed orientation jousting device for apical biaxial fulcrum (11, 12) in the two belts (1A, B, C, D, 2A, B, C, D,), independently activated by dedicated stepper motors (6A, B, C, D,) in paired pairs (1A, B, C, D, 2A, B, C, D,) by means of angular packs (4, 5) to the circuits (1, 2) of coaxial and codiametric pulleys (4A, B , C, D, 5A, B, C, D,) with parallel grooves, where in each corner pack (4, 5), in turn, only the pulleys (4A, B, C, D, 5A, B, C, D,) of a specific pair of belts (1A, B, C, D, 2A, B, C, D,) are motorized, while the others are idle. 3) Side shifter structure as per the first and second claims or each of them, characterized in that it comprises: a bundle (1) of four belts (1A, 1B, 1C and 1D) grouped parallel adjacent, circling parallel twinned with another bundle (2) of four belts (2A, 2B, 2C and 2D) staggered symmetrical in the direction transport (FI); at least four cross members (3) consisting of combs (3 A, 3B, 3C, 3D) equipped with respective teeth (9), or consisting of sides, coupling each single belt (1A, 1B, 1C, 1D) of a bundle (1 ) with a reciprocal single belt (2A, 2B, 2C, 2D) of the other bundle (2) yoking them by means of opposing brackets (10) projecting ap loyally for different lengths, constrained to the crosspieces (3) in fulcrums (I I, 12) reciprocally transversely offset by a pitch equal to the offset spacing of the symmetry of the two bundles of belts (1, 2); four packs (4) of coaxial and codiamtral pulleys (4A, 4B, 4C, 4D) with parallel grooves constituting angular transmissions (4) on which said first bundle of belts (1) circulates, describing a quadrilateral; four packs (5) of coaxial and codiametrical pulleys (5A, 5B, 5C, 5D) with parallel grooves constituting angular transmissions (5) on which said second bundle of belts (2) circulates, describing a quadrilateral; four brushless stepper motors (6A, 6B, 6C, 6D) respectively connected to the corner packs (4, 5) of pulleys (4A, 4B, 4C, 4D and 5A, 5B, 5C, 5D) by means of coupling bars (7A , 7B, 7C, 7D) and transmission belts (8A, 8B, 8C, 8D) so that in each corner pack (4, 5) only the pulley (4A, 4B, 4C, 4D and 5 A, 5B, 5C , 5D) of a specific pair of pulleys (4A-5A, 4B-5B, 4C-5C, 4D-5D) is motorized, while the others are idle. 4) Side shifter structure as per the first, second and third claims or each of them, characterized by being associated with: a feeder (13) of products (14) applied under a film (15) of heat-sealable material, fed in parallel over said feeder (13) of products (14); an elevator (16) with three independent elements suitable for elevating a group of products (14) within the space defined by two consecutive arrays of teeth (9) or by two consecutive sides carried translating by said at least four crosspieces (3) coupling each single belt (1A, 1B, 1C, 1D) of one bundle (1) with a reciprocal single belt (2A, 2B, 2C, 2D) of the other bundle (2); two coplanar folding sliders (18, 19) designed to close said compartment defined by two consecutive arrays of teeth (9) or by two consecutive translating sides, the one downstream of which, with reference to the direction of translation of the products (14), carrying a welding element (20). 5) Structure of side shifter as per third claim, characterized in that said at least four crosspieces (3) consisting of combs (3A, 3B, 3C, 3D) equipped with respective teeth (9) coupling each single belt (1A, 1B, 1C, 1D) of a bundle (1) with a reciprocal single belt (2A, 2B, 2C, 2D) of the other bundle (2) include: a first belt (IA) of the first bundle (1) coupled coupled with a first belt (2A) of the second bundle (2) yoked by at least one first cross member (3 A); a second belt (1B) of the first bundle (1) coupled coupled with a second belt (2B) of the second bundle (2) yoked by at least a second cross member (3B); a third belt (1C) of the first bundle (1) coupled coupled with a third belt (2C) of the second bundle (2) yoked by at least a third cross member (3C); a fourth belt (1D) of the first bundle (1) coupled with a fourth belt (2D) of the second bundle (2) yoked by at least a fourth cross member (3D). 6) Structure of side shifter as per third claim, characterized by the fact that in each corner pack (4, 5) only the pulley (4A, 4B, 4C, 4D c 5 A, 5B, 5C, 5D) of a specific pair of pulleys (4A-5A, 4B-5B, 4C-5C, 4D-5D) is motorized, while the others are idle by: a first motor (6A) by means of a coupling bar (7 A) and transmission belts (8A) drives the driving pulleys (4A, 5 A) of two first corner packs while the other pulleys of those packs are idle; a second motor (6B) by means of a coupling bar (7B) and transmission belts (8B) drives the driving pulleys (4B, 5B) of two second corner packs while the other pulleys of those packs are idle; a third motor (6C) by means of a coupling bar (7C) and transmission belts (8C) drives the driving pulleys (4C, 5C) of two thirds corner packs while the other pulleys of those packs are idle; a fourth motor (6D) by means of a coupling bar (7D) and transmission belts (8D) controls the drive pulleys (4D, 5D) of two fourth corner packs while the other pulleys of those packs are idle,