EP1778571B1 - A machine for packaging loose items of small dimensions - Google Patents
A machine for packaging loose items of small dimensions Download PDFInfo
- Publication number
- EP1778571B1 EP1778571B1 EP05771308A EP05771308A EP1778571B1 EP 1778571 B1 EP1778571 B1 EP 1778571B1 EP 05771308 A EP05771308 A EP 05771308A EP 05771308 A EP05771308 A EP 05771308A EP 1778571 B1 EP1778571 B1 EP 1778571B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- machine
- hoppers
- driven wheels
- along
- belt
- 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.)
- Not-in-force
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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
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
- B65B43/52—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using roller-ways or endless conveyors
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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
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
- B65B1/06—Methods of, or means for, filling the material into the containers or receptacles by gravity flow
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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
- B65B25/005—Packaging other articles presenting special problems packaging of confectionery
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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
- B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
- B65B39/14—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers movable with a moving container or wrapper during filling or depositing
- B65B39/145—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers movable with a moving container or wrapper during filling or depositing in an endless path
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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
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/02—Machines characterised by the incorporation of means for making the containers or receptacles
Definitions
- the present invention relates to a machine for packaging loose items of small dimensions.
- the invention finds application in the food industry for packaging loose sweets or candies in rigid containers furnished ideally with a lid allowing the consumer to open and close the container when taking out the contents.
- Conventional machines for packaging loose sweets or candies in rigid containers comprise a conveyor belt affording a plurality of pockets by which single diecut blanks are accommodated and directed along a predetermined path through a plurality of operating stations.
- EP 0878400 discloses a machine according to the preamble of claim 1.
- the blanks are engaged by folder mechanisms operating alongside the pockets and formed into respective open-topped boxes.
- the pockets and the relative partly formed boxes pass through a filling station occupiable by a plurality of hoppers loaded with the sweets or candies.
- the hoppers are carried by a second conveyor belt partially overhanging the first.
- the hoppers advance directly above the pockets along a predetermined filling leg of the path, proceeding at the same speed as the pockets, so that the sweets or candies can drop down into the boxes.
- the machine also presents an aperture of varying width and selectively contoured outline, extending along the predetermined filling leg between the hoppers and the pockets.
- the aperture is formed in a plate partly occluding the outlets of the hoppers along an initial portion of the filling leg. Proceeding along the feed direction followed by the pockets, the aperture widens gradually until the outlets of the hoppers are entirely exposed; thus, the sweets or candies can be introduced by degrees into each box, exploiting the full length of the filling leg.
- the two belts advance at the same peripheral speed along their entire developable length and the sweets are loaded into the hoppers from above, either from a special reservoir or direct from the outfeed of a production unit, along a leg of the second conveyor belt remote from the predetermined filling leg.
- machines of conventional type are equipped with intermediate chutes mounted to a reciprocating carriage.
- the intermediate chutes can thus accompany the movement of the hoppers during the loading step.
- the intermediate chutes advance with a first group of hoppers along the leg of the second conveyor belt opposite to the predetermined filling leg, thereupon returning and aligning with a successive group of hoppers to repeat the loading cycle.
- the carriage On completing the return stroke, the carriage will pause for a duration sufficient to reload the intermediate chutes.
- the object of the present invention is to overcome the problems typical of the prior art by providing a machine for packaging small items in boxes such as will be unaffected by the drawbacks mentioned above.
- the object of the present invention is to set forth a machine for packaging loose items of small dimensions, in which down time is minimized and of which the design is constructionally simple and compact.
- numeral 1 denotes a machine according to the present invention, in its entirety, for packaging loose items of small dimensions.
- the machine comprises a plurality of pockets 2, each accommodating a respective box S to be filled with items of small dimensions such as sweets or candies.
- the pockets 2 are set in motion, advancing in a predetermined direction denoted D, along a feed path that includes a predetermined filling leg T.
- the pockets 2 appear as cradles mounted to a transport belt 3, illustrated schematically in figure 2 , looped over two pulleys 4a and 4b rotatable about vertical axes of rotation, of which one at least is power driven.
- the belt 3 describes a closed loop including a first rectilinear branch 3a, a second rectilinear branch 3b, and two interconnecting curvilinear branches 3c and 3d associated with the pulleys 4a and 4b.
- a first machine station is installed along the path followed by the belt 3, at which flat diecut blanks taken from a relative magazine are bent to three-dimensional form and placed each in a respective pocket 2, as the first step in fashioning a box S destined to serve as container.
- the machine 1 also comprises a second folding station P2 located downstream of the filling leg T, by which the lid of each box is formed and closed.
- the machine also presents a plurality of movable hoppers 5 alignable along the filling leg T, carried by a transport belt 6 looped around a pair of driven wheels 7a and 7b rotatable about vertical axes ( figures 1 and 2 ).
- the transport belt 6 consists in a timing belt of which the teeth mesh with first sets of teeth afforded by each of the driven wheels 7a and 7b.
- the hoppers 5 are mounted to the side of the belt 6 opposite to the toothed side, through the agency of conventional fastening means, and cantilevered thus from the selfsame belt 6 ( figure 4 ).
- each hopper 5 comprises a first top portion 8 presenting a duct 9 delimited by four side walls.
- the duct 9 extends from a top opening 10 toward an intermediate opening 11 of the hopper 5 and is downwardly tapered. More exactly, the duct 9 is delimited by a rear wall 12 offered to the belt 6, two flank walls 13 and 14 associated with the opposite ends of the rear wall 12, and a front wall 15 interconnecting the forwardmost edges of the flank walls 13 and 14.
- the rear wall 12 and the flank walls 13 and 14 are inclined from the vertical to give the duct 9 its tapered appearance.
- the hopper 5 further comprises a second portion 16 mounted below the first portion 8, which presents a rear wall 17 and two flank walls 18 delimiting a channel 19 and functioning as a continuation of the duct 9.
- the channel 19 likewise is downwardly tapered and terminates at the bottom in an opening 20 of dimensions smaller than those of the aforementioned intermediate opening 11.
- the transport belt 6 describes a closed loop that includes a first rectilinear branch 6a, a second rectilinear branch 6b, and two interconnecting curvilinear branches 6c and 6d associated with the driven wheels 7a and 7b.
- the hoppers 5 are loaded along the first branch 6a with sweets or candies from one or more fixed outlets of suitable feed means, not illustrated, discharging into the top opening 10 of each hopper 5.
- the second rectilinear branch 6b establishes a branch 21 along which the hoppers 5 unload, extending substantially above the predetermined leg T along which the boxes S in their turn are filled.
- each hopper 5 is positioned over a corresponding pocket 2, advancing at the same speed as the pocket 2 as will shortly be described.
- the machine 1 will also be equipped with an aperture A of variable width and selectively contoured outline, extending between the hoppers 5 and the pockets 2 along the predetermined filling leg T.
- the aperture A in question is formed in a plate 22 that occludes the bottom opening 20 of the hoppers 5 in part, along an initial portion of the leg. Proceeding along the feed direction followed by the pockets 2, the aperture A widens gradually to the point of exposing the outlet of the hoppers 5 completely, so that the sweets or candies can drop into the box S utilizing the whole of the filling leg T ( figure 2 ).
- the hoppers 5, the transport belt 6 and the driven wheels 7a and 7b are operated by motion-inducing means 23 consisting advantageously in a drive belt 24 looped around the wheels 7a and 7b and presenting a first branch 24a and a second branch 24b extending between the selfsame wheels 7a and 7b.
- the motion-inducing means 23 further comprise at least one drive wheel 25 having a fixed axis of rotation and engaging the second branch 24b of the drive belt 24, which therefore is looped partially around the selfsame wheel 25.
- the second branch 24b of the drive belt 24 is associated with the second branch 6b of the transport belt 6, that is to say the branch 21 along which the hoppers 5 unload. "Associated” signifies that the second branch 6b of the transport belt 6 and the second branch 24b of the drive belt 24 extend between similar points on the first driven wheel 7a and similar points on the second driven wheel 7b; during the rotation of the driven wheels 7a and 7b, accordingly, the two branches advance as one from the first wheel 7a toward the second wheel 7b or from the second toward the first.
- the drive belt 24 likewise will consist in a timing belt meshing with second sets of teeth afforded by each of the driven wheels 7a and 7b and by the drive wheel 25.
- the machine 1 further comprises a device 26 by which the driven wheels 7a and 7b can be set in motion to and fro along a direction X parallel to the predetermined filling leg T at a variable speed of translation Vt.
- the device 26 comprises a carriage 27 supporting the shafts of the driven wheels 7a and 7b and capable of reciprocating linear motion along the aforementioned direction X.
- the wheels 7a and 7b will roll on the second branch 24b of the drive belt 24 associated with the branch 21 along which the hoppers 5 unload.
- the second branch 24b of the drive belt 24 and the second rectilinear branch 6b of the transport belt 6 remain stationary while the first rectilinear branch 6a of the transport belt 6 and the first branch 24a of the drive belt 24, which is not engaged by the drive wheel 25, will advance at a speed twice the speed Vt at which the driven wheels 7a and 7b are translated.
- the second branch 24b of the drive belt 24 and the second rectilinear branch 6b of the transport belt 6 will advance likewise at the first speed V1 matching the speed induced by the drive wheel 25, whilst the first rectilinear branch 6a of the transport belt 6 and the first branch 24a of the drive belt 24 will advance at the second speed V2, which is the sum of the first speed V1 induced by the rotation of the drive wheel 25 and double the speed of translation Vt of the driven wheels 7a and 7b.
- the speed at which the hoppers 5 are carried by the transport belt 6 along the first rectilinear branch 6a is similarly not constant, but alternates between a maximum and a minimum.
- the hoppers 5 can be made to stop once or more than once along the loading branch, beneath the fixed outlets of the aforementioned feed means.
- the device 26 serving to reciprocate the driven wheels 7a and 7b might have an independent motor connected to the carriage, it will be operated preferably and advantageously by the drive wheel 25, through the agency of a cam mechanism denoted 28.
- the cam mechanism 28 is connected to the drive wheel 25 and to the carriage 27 and thus able to convert the angular motion of the wheel 25 into alternating linear motion of the carriage 27. Any given type of mechanism might be adopted, according to the law of motion required, in particular on the leg of the transport loop along which the hoppers 5 are loaded.
- the driven wheels 7a and 7b and the drive wheel 25 will be aligned along the direction X parallel to the predetermined filling leg T.
- the drive wheel 25 carries a rigidly associated pin 29 positioned parallel to and offset from its axis of rotation.
- the pin 29 locates in a track 30 afforded by the carriage 27, fashioned preferably as a slot or a pair of parallel ridges extending perpendicularly to the predetermined filling leg T.
- the drive belt 24 is routed around two fixed idle pulleys 31 positioned on opposite sides of the drive wheel 25.
- the axes of rotation of the two pulleys 31 and of the drive wheel 25 occupy fixed positions one relative to another.
- the drive belt 24 is also routed around two movable idle pulleys 32 positioned on opposite sides of the drive wheel 25 and mounted to the carriage 27.
- the axes of rotation of the two pulleys 32 occupy positions fixed in relation to those of the driven wheels 7a and 7b, and movable relative to that of the drive wheel 25.
- the drive belt 24 is looped around the driven wheels 7a and 7b and the drive wheel 25 compassing an arc to a circle greater than 180°, thereby increasing the number of teeth of the drive belt 24 in mesh both with the drive wheel 25 and with the driven wheels 7a and 7b, while keeping the developable length of the drive belt 24 within the peripheral boundary of the transport belt 6.
- the drive wheel 25 is set in rotation anticlockwise at a first predetermined angular velocity ⁇ 1, with the result that the driven wheels 7a and 7b are set likewise in motion by the drive belt 24.
- the angular velocity of the driven wheels 7a and 7b, rotating devoid of any translational component, is identical to the first angular velocity ⁇ 1, assuming the driven wheels 7a and 7b and the drive wheel 25 to be of the same diameter.
- the second branch 24b of the drive belt 24 and the second rectilinear branch 6b of the transport belt 6 advance at speed V1
- the speed V2 of the hoppers 5 advancing along the first rectilinear branch 6a of the transport belt 6 is less than speed V1.
- the speed V2 of the hoppers 5 advancing along the first rectilinear branch 6a of the transport belt 6 is greater than speed V1.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Soil Working Implements (AREA)
Abstract
Description
- The present invention relates to a machine for packaging loose items of small dimensions.
- Preferably, though not exclusively, the invention finds application in the food industry for packaging loose sweets or candies in rigid containers furnished ideally with a lid allowing the consumer to open and close the container when taking out the contents.
- Conventional machines for packaging loose sweets or candies in rigid containers comprise a conveyor belt affording a plurality of pockets by which single diecut blanks are accommodated and directed along a predetermined path through a plurality of operating stations.
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EP 0878400 discloses a machine according to the preamble of claim 1. - At a given point along the path, the blanks are engaged by folder mechanisms operating alongside the pockets and formed into respective open-topped boxes. The pockets and the relative partly formed boxes pass through a filling station occupiable by a plurality of hoppers loaded with the sweets or candies. The hoppers are carried by a second conveyor belt partially overhanging the first. In particular, the hoppers advance directly above the pockets along a predetermined filling leg of the path, proceeding at the same speed as the pockets, so that the sweets or candies can drop down into the boxes. To prevent the sweets from jamming one with another and blocking the outlets of the hoppers, the machine also presents an aperture of varying width and selectively contoured outline, extending along the predetermined filling leg between the hoppers and the pockets. The aperture is formed in a plate partly occluding the outlets of the hoppers along an initial portion of the filling leg. Proceeding along the feed direction followed by the pockets, the aperture widens gradually until the outlets of the hoppers are entirely exposed; thus, the sweets or candies can be introduced by degrees into each box, exploiting the full length of the filling leg.
- The two belts advance at the same peripheral speed along their entire developable length and the sweets are loaded into the hoppers from above, either from a special reservoir or direct from the outfeed of a production unit, along a leg of the second conveyor belt remote from the predetermined filling leg.
- The speed at which the hoppers advance is critical for loading purposes, since the loading chutes remain stationary as the hoppers pass beneath them.
- Accordingly, machines of conventional type are equipped with intermediate chutes mounted to a reciprocating carriage. The intermediate chutes can thus accompany the movement of the hoppers during the loading step. In particular, the intermediate chutes advance with a first group of hoppers along the leg of the second conveyor belt opposite to the predetermined filling leg, thereupon returning and aligning with a successive group of hoppers to repeat the loading cycle. On completing the return stroke, the carriage will pause for a duration sufficient to reload the intermediate chutes.
- Unfortunately, this type of solution involves an increase in the number of constructional elements and in the vertical dimensions of the machine, creating maintenance difficulties for the operator and heightening the risk of damage to the sweets or candies, suffered during the extra drop to which they are subjected. Also, the time taken for the sweets or candies to drop into the intermediate chutes from the reservoir represents only one part of the loading cycle, since there is always an element of down time attributable to the return of the carriage.
- These problems have been overcome in part with the adoption of machines, now reflecting the state of the art, in which the second conveyor belt and the hoppers carried by the belt are dispensed with. The reciprocating carriage releases the sweets directly into the boxes occupying the pockets of the first conveyor belt. Likewise in this newer solution however, there is still an element of down time attributable to the return of the carriage.
- The object of the present invention is to overcome the problems typical of the prior art by providing a machine for packaging small items in boxes such as will be unaffected by the drawbacks mentioned above.
- In particular, the object of the present invention is to set forth a machine for packaging loose items of small dimensions, in which down time is minimized and of which the design is constructionally simple and compact.
- The stated object and others besides are realized substantially, according to the present invention, in a machine for packaging loose items of small dimensions as described and claimed hereinafter.
- The invention will now be described in detail, by way of example, with the aid of the accompanying drawings, in which:
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figure 1 is a perspective view of a machine for packaging loose items of small dimensions, embodied in accordance with the present invention; -
figure 2 is a schematic plan view of the machine infigure 1 ; -
figure 3 illustrates an enlarged detail of the machine infigure 1 , viewed from the front and partly in section; -
figure 4 shows the detail offigure 3 , viewed from the side and partly in section. - Referring to the accompanying drawings, numeral 1 denotes a machine according to the present invention, in its entirety, for packaging loose items of small dimensions.
- The machine comprises a plurality of
pockets 2, each accommodating a respective box S to be filled with items of small dimensions such as sweets or candies. Thepockets 2 are set in motion, advancing in a predetermined direction denoted D, along a feed path that includes a predetermined filling leg T. In particular, thepockets 2 appear as cradles mounted to atransport belt 3, illustrated schematically infigure 2 , looped over twopulleys belt 3 describes a closed loop including a firstrectilinear branch 3a, a secondrectilinear branch 3b, and two interconnectingcurvilinear branches pulleys - In accordance with a conventional type of design, neither illustrated nor described in detail, a first machine station is installed along the path followed by the
belt 3, at which flat diecut blanks taken from a relative magazine are bent to three-dimensional form and placed each in arespective pocket 2, as the first step in fashioning a box S destined to serve as container. - Thereafter, the bottom end folds of the blank are bent at a first folding station P1 to form a box S with an open top (
figure 1 ). The aforementioned filling leg T extends immediately downstream of the first folding station P1, along the feed direction D followed by the pockets, coinciding partly with the firstrectilinear branch 3a of thebelt 3. The machine 1 also comprises a second folding station P2 located downstream of the filling leg T, by which the lid of each box is formed and closed. - The machine also presents a plurality of
movable hoppers 5 alignable along the filling leg T, carried by atransport belt 6 looped around a pair of drivenwheels figures 1 and2 ). In a preferred embodiment, thetransport belt 6 consists in a timing belt of which the teeth mesh with first sets of teeth afforded by each of the drivenwheels hoppers 5 are mounted to the side of thebelt 6 opposite to the toothed side, through the agency of conventional fastening means, and cantilevered thus from the selfsame belt 6 (figure 4 ). - As illustrated in
figures 3 and 4 , eachhopper 5 comprises afirst top portion 8 presenting aduct 9 delimited by four side walls. Theduct 9 extends from a top opening 10 toward anintermediate opening 11 of thehopper 5 and is downwardly tapered. More exactly, theduct 9 is delimited by arear wall 12 offered to thebelt 6, twoflank walls rear wall 12, and afront wall 15 interconnecting the forwardmost edges of theflank walls rear wall 12 and theflank walls duct 9 its tapered appearance. - The
hopper 5 further comprises asecond portion 16 mounted below thefirst portion 8, which presents arear wall 17 and twoflank walls 18 delimiting achannel 19 and functioning as a continuation of theduct 9. Thechannel 19 likewise is downwardly tapered and terminates at the bottom in an opening 20 of dimensions smaller than those of the aforementionedintermediate opening 11. - The
transport belt 6 describes a closed loop that includes a firstrectilinear branch 6a, a secondrectilinear branch 6b, and two interconnectingcurvilinear branches 6c and 6d associated with the drivenwheels - The
hoppers 5 are loaded along thefirst branch 6a with sweets or candies from one or more fixed outlets of suitable feed means, not illustrated, discharging into the top opening 10 of eachhopper 5. - The second
rectilinear branch 6b establishes abranch 21 along which thehoppers 5 unload, extending substantially above the predetermined leg T along which the boxes S in their turn are filled. - Along this same predetermined leg T, at least, the bottom opening 20 of each
hopper 5 is positioned over acorresponding pocket 2, advancing at the same speed as thepocket 2 as will shortly be described. - In an arrangement of familiar type, the machine 1 will also be equipped with an aperture A of variable width and selectively contoured outline, extending between the
hoppers 5 and thepockets 2 along the predetermined filling leg T. The aperture A in question is formed in aplate 22 that occludes the bottom opening 20 of thehoppers 5 in part, along an initial portion of the leg. Proceeding along the feed direction followed by thepockets 2, the aperture A widens gradually to the point of exposing the outlet of thehoppers 5 completely, so that the sweets or candies can drop into the box S utilizing the whole of the filling leg T (figure 2 ). - The
hoppers 5, thetransport belt 6 and the drivenwheels drive belt 24 looped around thewheels first branch 24a and asecond branch 24b extending between theselfsame wheels - The motion-inducing means 23 further comprise at least one
drive wheel 25 having a fixed axis of rotation and engaging thesecond branch 24b of thedrive belt 24, which therefore is looped partially around theselfsame wheel 25. - The
second branch 24b of thedrive belt 24 is associated with thesecond branch 6b of thetransport belt 6, that is to say thebranch 21 along which thehoppers 5 unload. "Associated" signifies that thesecond branch 6b of thetransport belt 6 and thesecond branch 24b of thedrive belt 24 extend between similar points on the first drivenwheel 7a and similar points on the second drivenwheel 7b; during the rotation of the drivenwheels first wheel 7a toward thesecond wheel 7b or from the second toward the first. - Preferably, the
drive belt 24 likewise will consist in a timing belt meshing with second sets of teeth afforded by each of the drivenwheels drive wheel 25. - The machine 1 further comprises a
device 26 by which the drivenwheels device 26 comprises acarriage 27 supporting the shafts of the drivenwheels - The combination of movements described thus far will allow the
hoppers 5 to be advanced at a first steady speed V1 along the predetermined leg T when filling the boxes s, matched to the feed speed of thepockets 2, and at a second variable speed V2 along the branch on which the hoppers themselves are loaded (figure 2 ). - In effect, when the reciprocating motion induced in the driven
wheels device 26 is considered in isolation, and with thedrive belt 24 at rest, thewheels second branch 24b of thedrive belt 24 associated with thebranch 21 along which thehoppers 5 unload. Thus, thesecond branch 24b of thedrive belt 24 and the secondrectilinear branch 6b of thetransport belt 6 remain stationary while the firstrectilinear branch 6a of thetransport belt 6 and thefirst branch 24a of thedrive belt 24, which is not engaged by thedrive wheel 25, will advance at a speed twice the speed Vt at which the drivenwheels - Adding to this movement the movement induced in the
belts drive wheel 25, thesecond branch 24b of thedrive belt 24 and the secondrectilinear branch 6b of thetransport belt 6 will advance likewise at the first speed V1 matching the speed induced by thedrive wheel 25, whilst the firstrectilinear branch 6a of thetransport belt 6 and thefirst branch 24a of thedrive belt 24 will advance at the second speed V2, which is the sum of the first speed V1 induced by the rotation of thedrive wheel 25 and double the speed of translation Vt of the drivenwheels - Given that the translational speed Vt of the driven
wheels hoppers 5 are carried by thetransport belt 6 along the firstrectilinear branch 6a is similarly not constant, but alternates between a maximum and a minimum. Selecting the ratio between the speed V1 induced by thedrive wheel 25 and the translational speed Vt of the drivenwheels hoppers 5 can be made to stop once or more than once along the loading branch, beneath the fixed outlets of the aforementioned feed means. - Whilst the
device 26 serving to reciprocate the drivenwheels drive wheel 25, through the agency of a cam mechanism denoted 28. The cam mechanism 28 is connected to thedrive wheel 25 and to thecarriage 27 and thus able to convert the angular motion of thewheel 25 into alternating linear motion of thecarriage 27. Any given type of mechanism might be adopted, according to the law of motion required, in particular on the leg of the transport loop along which thehoppers 5 are loaded. - Preferably, the driven
wheels drive wheel 25 will be aligned along the direction X parallel to the predetermined filling leg T. Thedrive wheel 25 carries a rigidly associatedpin 29 positioned parallel to and offset from its axis of rotation. Thepin 29 locates in atrack 30 afforded by thecarriage 27, fashioned preferably as a slot or a pair of parallel ridges extending perpendicularly to the predetermined filling leg T. - In addition, the
drive belt 24 is routed around two fixedidle pulleys 31 positioned on opposite sides of thedrive wheel 25. The axes of rotation of the twopulleys 31 and of thedrive wheel 25 occupy fixed positions one relative to another. - Lastly, the
drive belt 24 is also routed around two movableidle pulleys 32 positioned on opposite sides of thedrive wheel 25 and mounted to thecarriage 27. The axes of rotation of the twopulleys 32 occupy positions fixed in relation to those of the drivenwheels drive wheel 25. - Thus, the
drive belt 24 is looped around the drivenwheels drive wheel 25 compassing an arc to a circle greater than 180°, thereby increasing the number of teeth of thedrive belt 24 in mesh both with thedrive wheel 25 and with the drivenwheels drive belt 24 within the peripheral boundary of thetransport belt 6. - In operation, referring in particular to
figure 2 , thedrive wheel 25 is set in rotation anticlockwise at a first predetermined angular velocity ω1, with the result that the drivenwheels drive belt 24. The angular velocity of the drivenwheels wheels drive wheel 25 to be of the same diameter. The rotation of the threewheels transport belt 6 and thedrive belt 24 to advance at a peripheral velocity of V1 = ω1 • R. - Superimposed on this rotary motion will be the alternating linear motion of the driven
wheels drive belt 24 at a speed of translation Vt that follows a sinusoidal law of velocity, dictated by the first angular velocity ω1 and by the position of thepin 29 relative to the centre of rotation of thedrive wheel 25. If r is the distance between thepin 29 and the centre of thedrive wheel 25, then Vt = ω1 r • sinϕ, were ϕ is the angular position of thepin 29 during its orbit around the centre of thedrive wheel 25. - Accordingly, the
second branch 24b of thedrive belt 24 and the secondrectilinear branch 6b of thetransport belt 6 advance at speed V1, whereas the firstrectilinear branch 6a of thetransport belt 6 and thefirst branch 24a of thedrive belt 24, which is not engaged by thedrive wheel 25, will advance at speed V2, or V1 + 2Vt, i.e. V2 = V1 + 2ω1 r • sinϕ. - During the movement of the
carriage 27 from left to right, with thepin 29 moving left to right, the speed V2 of thehoppers 5 advancing along the firstrectilinear branch 6a of thetransport belt 6 is less than speed V1. During the movement of thecarriage 27 from right to left, the speed V2 of thehoppers 5 advancing along the firstrectilinear branch 6a of thetransport belt 6 is greater than speed V1. - The problems encountered in prior art machines are overcome by the present invention, and the stated objects duly realized. With a machine according to the invention for packaging loose items of small dimensions, in effect, the hoppers can be brought to a standstill and loaded along one leg of the feed path, while continuing to advance at constant speed on the leg of the path along which the items are released into boxes. With the machine disclosed, moreover, it becomes possible to eliminate down time attributable to the return travel of the intermediate loading chutes used in prior art machines, through the adoption of a simple and compact mechanism.
Claims (13)
- A machine for packaging small items in boxes, comprising a plurality of pockets (2) accommodating respective boxes (S) to be filled with the items and capable of motion in a predetermined direction (D) along a predetermined filling leg (T) of a feed path; a plurality of movable hoppers (5), each presenting a bottom opening (20) positionable above a respective pocket (2) at least on the predetermined leg (T) along which the boxes (S) are filled; feed means by which small items are directed into each hopper (5) by way of a top opening (10) of the selfsame hopper; and means (23) by which motion is induced in the hoppers (5), whereby the motion of the hoppers (5) is induced by means (23) comprising a transport belt (6) carrying the hoppers (5), looped around a pair of driven wheels (7a, 7b) and affording an unloading branch (21) along which the hoppers (5) are placeable over the boxes (S) on the predetermined filling leg (T), characterized by a drive belt (24) looped around the driven wheels (7a, 7b), a drive wheel (25) engaged by a branch (24b) of the drive belt (24) associated with the unloading branch (21) along which the items are released by the hoppers (5), and a device (26) by which the driven wheels (7a, 7b) are set in alternating linear motion along a direction (X) parallel to the predetermined filling leg (T).
- A machine as in claim 1, wherein the device (26) by which the driven wheels (7a, 7b) are set in alternating linear motion comprises a carriage (27) supporting the driven wheels (7a, 7b) and capable of the selfsame alternating linear motion.
- A machine as in claim 2, wherein the device (26) by which the driven wheels (7a, 7b) are set in motion further comprises a cam mechanism (28) connected to the drive wheel (25) and to the carriage (27) in such a way as to convert the rotary motion of the drive wheel (25) into the alternating linear motion of the carriage (27).
- A machine as in claim 3, wherein the cam (28) consists in a pin (29) rigidly associated with the drive wheel (25), offset from the axis of rotation of the selfsame wheel (25) and coupled slidably with a track (30) afforded by the carriage (27).
- A machine as in claim 4, wherein the track (30) consists in a slot extending perpendicular to the predetermined filling leg (T).
- A machine as in preceding claims, wherein the driven wheels (7a, 7b) and the drive wheel (25) are aligned along the direction (X) parallel to the predetermined filling leg (T).
- A machine as in preceding claims, wherein the transport belt (6) consists in a timing belt positively engaging a first set of teeth presented by each of the driven wheels (7a, 7b).
- A machine as in preceding claims, wherein the drive belt (24) consists in a timing belt positively engaging a second set of teeth presented by each of the driven wheels (7a, 7b) and by the drive wheel (25).
- A machine as in preceding claims, wherein the drive belt (24) is routed over two idle pulleys (31) with axes occupying fixed positions, located on opposite sides of the drive wheel (25).
- A machine as in preceding claims, wherein the drive belt (24) is routed over two idle pulleys (32) with movable axes, located on opposite sides of the drive wheel (25) and mounted to the carriage (27).
- A machine as in claim 10 where dependent on claim 9, wherein the drive belt (24), the idle pulleys (31) with fixed axes and the idle pulleys (32) with movable axes are located within the peripheral compass of the transport belt (6).
- A machine as in claim 2, further comprising a plate (22) interposed between the hoppers (5) and the pockets (2), and presenting an aperture (A) of varying width extending along the predetermined filling leg (T), such as will ensure a measured release of items into the boxes (S) exploiting the full length of the filling leg (T).
- A machine as in claim 12, wherein the plate (22) is rigidly associated with the carriage (27).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000497A ITBO20040497A1 (en) | 2004-08-03 | 2004-08-03 | MACHINE FOR THE PACKAGING OF SMALL BULK ATICLES |
PCT/IB2005/002551 WO2006016268A1 (en) | 2004-08-03 | 2005-07-29 | A machine for packaging loose items of small dimensions |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1778571A1 EP1778571A1 (en) | 2007-05-02 |
EP1778571B1 true EP1778571B1 (en) | 2008-07-02 |
Family
ID=35134173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05771308A Not-in-force EP1778571B1 (en) | 2004-08-03 | 2005-07-29 | A machine for packaging loose items of small dimensions |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1778571B1 (en) |
AT (1) | ATE399732T1 (en) |
DE (1) | DE602005007910D1 (en) |
ES (1) | ES2309782T3 (en) |
IT (1) | ITBO20040497A1 (en) |
WO (1) | WO2006016268A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE502008002566D1 (en) | 2008-08-13 | 2011-03-24 | Uhlmann Pac Systeme Gmbh & Co | Method and device for clocked filling of a plurality of containers |
ITUB20151128A1 (en) * | 2015-05-27 | 2016-11-27 | Marchesini Group Spa | EQUIPMENT FOR THE TRANSFER OF PHARMACEUTICAL ITEMS FROM A COUNTER MACHINE INSIDE CONTAINERS IN CONTINUOUS ADVANCE |
FR3046999A1 (en) * | 2016-01-26 | 2017-07-28 | C E R M E X Constructions Etudes Et Rech De Materiels Pour L'emballage D'expedition | DEVICE AND METHOD FOR TRANSFERRING PRODUCTS |
CN116674796B (en) * | 2023-08-03 | 2023-09-29 | 金洲精工科技(昆山)有限公司 | Quantitative boxing device for rod-shaped materials |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1267468B1 (en) * | 1994-10-27 | 1997-02-05 | Hitech Systems Srl | PERFECTED MACHINE FOR GROUPING, FOR PACKAGING PURPOSES, OF INDIVIDUALLY CONVEYED PRODUCTS, |
US5918445A (en) * | 1996-05-24 | 1999-07-06 | Stevan Tisma | Automatic packaging machine for inserting a few small items with desired orientation into a carton |
-
2004
- 2004-08-03 IT IT000497A patent/ITBO20040497A1/en unknown
-
2005
- 2005-07-29 WO PCT/IB2005/002551 patent/WO2006016268A1/en active IP Right Grant
- 2005-07-29 AT AT05771308T patent/ATE399732T1/en not_active IP Right Cessation
- 2005-07-29 DE DE602005007910T patent/DE602005007910D1/en active Active
- 2005-07-29 ES ES05771308T patent/ES2309782T3/en active Active
- 2005-07-29 EP EP05771308A patent/EP1778571B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP1778571A1 (en) | 2007-05-02 |
ES2309782T3 (en) | 2008-12-16 |
WO2006016268A1 (en) | 2006-02-16 |
ATE399732T1 (en) | 2008-07-15 |
ITBO20040497A1 (en) | 2004-11-03 |
DE602005007910D1 (en) | 2008-08-14 |
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