EP0064575A1 - A device for twisting a packing wrapping - Google Patents
A device for twisting a packing wrapping Download PDFInfo
- Publication number
- EP0064575A1 EP0064575A1 EP81200514A EP81200514A EP0064575A1 EP 0064575 A1 EP0064575 A1 EP 0064575A1 EP 81200514 A EP81200514 A EP 81200514A EP 81200514 A EP81200514 A EP 81200514A EP 0064575 A1 EP0064575 A1 EP 0064575A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- claws
- twisting
- levers
- head
- pair
- 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.)
- Granted
Links
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Classifications
-
- 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
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
-
- 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
- B65B25/006—Packaging other articles presenting special problems packaging of confectionery packaging of lollipops
Definitions
- a device for twisting a packing wrapping is a device for twisting a packing wrapping.
- the invention relates to a device for twisting the extremities of a packing wrapping consisting of a member for supplying and discharging objects about which the packing wrapping has to be twisted to pairs of twisting claws, said pairs of twisting claws being'mounted hingedly about levers to oppositely rotating heads and having teeth which engage toothed racks slidably mounted in the heads.
- a similar device is known from Dutch patent specification 120 483.
- the twisting claws in this known device can make three, three and a half as well as four revolutions. This is possible because of the symmetry of the twisting claws. The number of revolutions for these claws must always be a multiple of half a revolution.
- This known device is very well suitable for handling substantially spheroidal objects. But the device certainly is not suitable for handling objects which are not substantially spheroidal, but are for instance provided with a projecting stick, as is the case when handling lollipops. Making the known device suitable would mean that the hinged joints of one of the pairs of twisting claws would have to be disposed at a far larger distance of the spheroidal portion of the object in question. This requires long levers, which has high centrifugal forces in result. Consequently, it is nearly impossible to obtain a device whose number of revolutions is sufficient for keeping up with the high production rate of modern machines for the production of lollipops.
- the invention aims at providing an improvement of this. According to the invention this has been achieved, in that one-of the pairs of claws is adapted to receive a stick attached to the object. In practice this can be attained in that the levers of the pair of claws in question are spaced outside the axis of rotation in such a way that they can let the stick pass to the recesses applied in the claws.
- the device can then be adjusted in such a way that the pair of claws in question in each wrapping cycle makes three and a half revolution with the object and half a revolution without the object.
- the head of the pair of claws in question may then consist of a flange portion for guiding a steering rod for the toothed rack, and a bridge portion and a jib portion in balance with regard to each other.
- the levers of the pair of twisting claws are provided with a counter mass beyond the hinged joint of the head.
- the device shown in the drawing consists of two heads 1 and 2 which rotate in opposite directions for twisting the,extremities of a packing wrapping 3 shown by dotted lines in figure 1, so that an object 5 provided with a stick 4, such as a lollipop, can efficiently be provided with a packing having an attractive appearance.
- the left-hand head 1 in the drawing is provided with hinged levers 6 which at their free ends have the appearance of a claw 7.
- the hinging of these levers is effected in a known fashion in that a toothed rack 8 is movable in the head in axial direction of the head.
- the teeth of this toothed rack 8 engage teeth applied to the circular rear end of the levers 6 positioned about the pins 9. Because of safety it is necessary that the claws are closed by a spring pressure and are opened with force.
- the right-hand head 2 in the drawing is provided with hinged levers 10 which at their free ends have the appearance of a claw 11.
- the hinging of these levers is effected by a stepped toothed rack 12 which engages teeth applied to the rear ends of the levers 10 positioned about the screwed connections 13.
- the head 2 consists of a'cylindrical flange portion 15 with a guide bush 16 for guiding a steering rod 17 for the toothed rack 12.
- the flange portion 15 is integral with a bridge portion 18 which in its turn is integral with a jib 19 which supports the levers 10 by means of the screwed connections 13.
- the jib 19 is positioned preferably diametrally opposite the bridge portion 18.
- the bridge portion is therefore of a proportionally thick construction.
- the jib 19 may also be fitted out with edges (not shown) dropping over a short distance for guiding the toothed rack 12.
- the levers 10 may continue to beyond the screwed connections 12 in order to constitute balancing masses 20.
- the claws 7 of the left-hand head 1 are made of plastic because they need not be heated and are therefore not subject to high centrifugal forces.
- For the claws 11 are made of metal indeed, because they can be heated in a way not relevant.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wrapping Of Specific Fragile Articles (AREA)
- Basic Packing Technique (AREA)
Abstract
Description
- A device for twisting a packing wrapping.
- The invention relates to a device for twisting the extremities of a packing wrapping consisting of a member for supplying and discharging objects about which the packing wrapping has to be twisted to pairs of twisting claws, said pairs of twisting claws being'mounted hingedly about levers to oppositely rotating heads and having teeth which engage toothed racks slidably mounted in the heads.
- A similar device is known from Dutch patent specification 120 483. The twisting claws in this known device can make three, three and a half as well as four revolutions. This is possible because of the symmetry of the twisting claws. The number of revolutions for these claws must always be a multiple of half a revolution. This known device is very well suitable for handling substantially spheroidal objects. But the device certainly is not suitable for handling objects which are not substantially spheroidal, but are for instance provided with a projecting stick, as is the case when handling lollipops. Making the known device suitable would mean that the hinged joints of one of the pairs of twisting claws would have to be disposed at a far larger distance of the spheroidal portion of the object in question. This requires long levers, which has high centrifugal forces in result. Consequently, it is nearly impossible to obtain a device whose number of revolutions is sufficient for keeping up with the high production rate of modern machines for the production of lollipops.
- The invention aims at providing an improvement of this. According to the invention this has been achieved, in that one-of the pairs of claws is adapted to receive a stick attached to the object. In practice this can be attained in that the levers of the pair of claws in question are spaced outside the axis of rotation in such a way that they can let the stick pass to the recesses applied in the claws.
- The device can then be adjusted in such a way that the pair of claws in question in each wrapping cycle makes three and a half revolution with the object and half a revolution without the object. Within the scope of the claims it is also possible, however, to start from three revolutions per cycle. The head of the pair of claws in question may then consist of a flange portion for guiding a steering rod for the toothed rack, and a bridge portion and a jib portion in balance with regard to each other. For further balancing the device according to the invention also the feature is proposed that the levers of the pair of twisting claws are provided with a counter mass beyond the hinged joint of the head.
- The invention will be illustrated hereinunder with the aid of the drawing, in which by way of example an embodiment of a device according to the invention is shown. In the drawing
- fig. 1 shows a top view and
- fig. 2 shows a side view, partially in cross-section, according to the line II-II of fig. 1.
- The device shown in the drawing consists of two
heads 1 and 2 which rotate in opposite directions for twisting the,extremities of a packing wrapping 3 shown by dotted lines in figure 1, so that anobject 5 provided with astick 4, such as a lollipop, can efficiently be provided with a packing having an attractive appearance. - The left-hand head 1 in the drawing is provided with
hinged levers 6 which at their free ends have the appearance of aclaw 7. The hinging of these levers is effected in a known fashion in that a toothed rack 8 is movable in the head in axial direction of the head. The teeth of this toothed rack 8 engage teeth applied to the circular rear end of thelevers 6 positioned about thepins 9. Because of safety it is necessary that the claws are closed by a spring pressure and are opened with force. - The right-
hand head 2 in the drawing is provided withhinged levers 10 which at their free ends have the appearance of aclaw 11. The hinging of these levers is effected by a steppedtoothed rack 12 which engages teeth applied to the rear ends of thelevers 10 positioned about thescrewed connections 13. - The special feature of the right-
hand head 2 with regard to the left-hand head 1 now is that though the lever pairs 7 and 6, resp. are equally short, the central axis of the stick nevertheless can be taken into and from the central axis of rotation. This has been achieved by designing thehead 2 in such a way that thelever pair 10 will be sufficiently spaced from the axis of rotation of thishead 2, and by providing theclaws 11 with for instance asemicircular recess 14. , - The
head 2 consists of a'cylindricalflange portion 15 with aguide bush 16 for guiding asteering rod 17 for thetoothed rack 12. Theflange portion 15 is integral with a bridge portion 18 which in its turn is integral with ajib 19 which supports thelevers 10 by means of thescrewed connections 13. For balancing all this thejib 19 is positioned preferably diametrally opposite the bridge portion 18. As the jib must be relatively long and wide, the bridge portion is therefore of a proportionally thick construction. Thejib 19 may also be fitted out with edges (not shown) dropping over a short distance for guiding thetoothed rack 12. - In order to limit also the centrifugal forces on the
metal claws 11 to a minimum, thelevers 10 may continue to beyond the screwedconnections 12 in order to constitute balancingmasses 20. Theclaws 7 of the left-hand head 1 are made of plastic because they need not be heated and are therefore not subject to high centrifugal forces. For theclaws 11 are made of metal indeed, because they can be heated in a way not relevant. - The above described device operates in the following way:
- The
object 4/5 and the packing wrapping 3 arrive in the pairs ofclaws head 2. The lollipop is retained by a device which is driven by a Malthezer cross. In consequence the device moves 1200 of a 360 cycle and is 240 at rest. Thehead 2 rotates during this stationary period 240/360° x four revolutions. By selecting other ratios of the movement of rest of the device which retains the lollipop and the number of revolutions ofhead 2, the outcome is different but the principle remains the same. After twisting the object moves further according to the sense 22 of arrow 22 of fig. 1. As alsostick 4 has to move, it will be necessary that thehead 2 has rotated 180o when the packed object leaves the claws again. Modern lollipop production machines have a production of about 300 piece per minute, so that thehead 2 must have a number of revolutions of about 1200 revolutions per minute. That is why it is of so great importance to control the centrifugal forces. ' - It is remarked that the scope of the claims also includes other embodiments than shown in the drawing. In particular with respect to the claims it is not relevant how the object and the packing are introduced into and discharged from the device. For also other applications than lollipops are conceivable and as for the packing wrapping, one may also think of different principles, such as a folded piece of paper, a sandwich, so a piece of paper both under and over the object, and a sachet, so a kind of triangular bag.
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8181200514T DE3171685D1 (en) | 1981-05-13 | 1981-05-13 | A device for twisting a packing wrapping |
EP19810200514 EP0064575B1 (en) | 1981-05-13 | 1981-05-13 | A device for twisting a packing wrapping |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19810200514 EP0064575B1 (en) | 1981-05-13 | 1981-05-13 | A device for twisting a packing wrapping |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0064575A1 true EP0064575A1 (en) | 1982-11-17 |
EP0064575B1 EP0064575B1 (en) | 1985-08-07 |
Family
ID=8188125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19810200514 Expired EP0064575B1 (en) | 1981-05-13 | 1981-05-13 | A device for twisting a packing wrapping |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0064575B1 (en) |
DE (1) | DE3171685D1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5241807A (en) * | 1992-02-26 | 1993-09-07 | Quick Howard E | Method and apparatus for wrapping lollipops and similar articles |
EP1712472A1 (en) * | 2005-04-14 | 2006-10-18 | THEEGARTEN-PACTEC GMBH & CO. KG | Method and device for packaging small products |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB328145A (en) * | 1929-05-29 | 1930-04-24 | Alfred German Rose | Improvements in or relating to wrapping machines |
US2246243A (en) * | 1938-09-26 | 1941-06-17 | Package Machinery Co | Machine for wrapping lollipops |
US3001351A (en) * | 1959-11-18 | 1961-09-26 | Forgrove Mach | Wrapping machines |
-
1981
- 1981-05-13 EP EP19810200514 patent/EP0064575B1/en not_active Expired
- 1981-05-13 DE DE8181200514T patent/DE3171685D1/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB328145A (en) * | 1929-05-29 | 1930-04-24 | Alfred German Rose | Improvements in or relating to wrapping machines |
US2246243A (en) * | 1938-09-26 | 1941-06-17 | Package Machinery Co | Machine for wrapping lollipops |
US3001351A (en) * | 1959-11-18 | 1961-09-26 | Forgrove Mach | Wrapping machines |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5241807A (en) * | 1992-02-26 | 1993-09-07 | Quick Howard E | Method and apparatus for wrapping lollipops and similar articles |
EP1712472A1 (en) * | 2005-04-14 | 2006-10-18 | THEEGARTEN-PACTEC GMBH & CO. KG | Method and device for packaging small products |
EP1939092A2 (en) * | 2005-04-14 | 2008-07-02 | THEEGARTEN-PACTEC GMBH & CO. KG | Method and device for packaging small articles |
EP1939092A3 (en) * | 2005-04-14 | 2008-07-09 | THEEGARTEN-PACTEC GMBH & CO. KG | Method and device for packaging small articles |
EP1939093A3 (en) * | 2005-04-14 | 2008-07-09 | THEEGARTEN-PACTEC GMBH & CO. KG | Method and device for packaging small articles |
EP2210813A1 (en) * | 2005-04-14 | 2010-07-28 | Theegarten-Pactec Gmbh & Co. Kg | Method and device for packaging small articles |
EP2218645A1 (en) * | 2005-04-14 | 2010-08-18 | Theegarten-Pactec Gmbh & Co. Kg | Method and device for packaging small articles |
DE102005017329B4 (en) * | 2005-04-14 | 2014-10-16 | Theegarten-Pactec Gmbh & Co. Kg | Method and device for packaging small-sized articles |
Also Published As
Publication number | Publication date |
---|---|
DE3171685D1 (en) | 1985-09-12 |
EP0064575B1 (en) | 1985-08-07 |
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