EP0644847A1 - Dispositif convoyeur pour bonbons. - Google Patents

Dispositif convoyeur pour bonbons.

Info

Publication number
EP0644847A1
EP0644847A1 EP94902520A EP94902520A EP0644847A1 EP 0644847 A1 EP0644847 A1 EP 0644847A1 EP 94902520 A EP94902520 A EP 94902520A EP 94902520 A EP94902520 A EP 94902520A EP 0644847 A1 EP0644847 A1 EP 0644847A1
Authority
EP
European Patent Office
Prior art keywords
pivot
pair
holding jaws
shaft
holding
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
Application number
EP94902520A
Other languages
German (de)
English (en)
Other versions
EP0644847B1 (fr
Inventor
Wolfgang Girndt
Werner Kmoch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pactec Verpackungsmaschinen Fabrik Theegarten GmbH and Co KG
Original Assignee
PACTEC DRESDEN GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PACTEC DRESDEN GmbH filed Critical PACTEC DRESDEN GmbH
Publication of EP0644847A1 publication Critical patent/EP0644847A1/fr
Application granted granted Critical
Publication of EP0644847B1 publication Critical patent/EP0644847B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
    • B65B35/10—Feeding, e.g. conveying, single articles
    • B65B35/26—Feeding, e.g. conveying, single articles by rotary conveyors

Definitions

  • the invention relates to a conveyor device for candies with a gripper wheel rotating about a stationary central axis, which has a housing with a plurality of pivotable, cam-controlled holding jaw pairs, for detecting and transferring the candies separated from a continuous mass strand by a cutting device to a transfer wheel, the holding jaws of each pair of holding jaws being axially pivotable relative to one another and together.
  • DE-A-38 20 139 discloses a conveying device of the type mentioned at the outset with receiving the candies cut off from a mass strand and transferring them to subsequent processing stations.
  • the sweets are picked up and handed over by a gripper wheel provided with holding elements.
  • Different speeds between the mass strand and the subsequent processing station are compensated for by pivotable holding element pairs.
  • an outer holding element is attached to a shaft, which is axially displaceably mounted in a hollow shaft.
  • the hollow shaft carries an inner holding element of a pair of holding elements and is pivotably arranged in the housing of the gripper wheel rotating about a stationary central axis.
  • the shaft receives its axial movement for opening and closing the pair of holding elements through a stationary pot curve.
  • the hollow shaft is connected within the housing to a lever arm, the curve roller of which rolls on a curve package.
  • the curve package consists of a stationary basic curve and two adjustable curve segments.
  • the cam roller runs on a section of the basic curve and on a section of the curve segments.
  • the curve segments are adjusted by means of a threaded spindle.
  • This device is disadvantageous in that the movement of the holding jaws is adversely affected by the adjustment of the two cam segments and, in particular, no smooth running of the cam rollers is achieved. Changes in the course of movement from an acceleration to a deceleration of the holding elements cannot be clearly defined, with the result that disruptions can occur during the separation process of the mass strand and when the candies are being detected. These deficiencies are also exacerbated by the fact that the cam roller is pressed against the cam disc by spring force and that no positive rotation is achieved.
  • the speed of movement of the gripper wheel must be greater than that of the mass strand.
  • the same speeds between the mass strand, the holding elements and the relative movement of e.g. rotating strand knife can be achieved in the conveying direction of the mass strand.
  • its axis must also be aligned radially and perpendicular to the direction of conveyance of the mass strand.
  • the speed of a knife measurement of the cutting device corresponds to the number of cycles of the packaging machine equipped with such a conveying device, e.g. handling longer candies a higher speed of the mass strand and thus a lower acceleration and consequently less deceleration of the pairs of holding jaws.
  • the invention is therefore based on the object of improving a conveying device of the type mentioned at the outset such that the course of movement of the pairs of holding jaws can be determined exactly and changing relative speeds between the speed of the mass strand and the speed of the gripper wheel can be compensated for by simple adjustment , so that a trouble-free cutting of the mass strand and detection of the sweets is ensured.
  • optimal movement conditions for each pair of holding jaws and a radial orientation of the pivot axis of the pair of holding jaws which is oriented perpendicularly to the direction of transport of the mass strand should be ensured.
  • a pivot axis of a pivot control transmission device for the pair of holding jaws and a pivot axis for the holding jaws of the pair of holding jaws are arranged on a circular arc under a same radius of rotation with the stationary central axis as a pivot center, with a relative position of one pivot axis to the other Swivel axis on the circular arc is adjustable.
  • the adjustment of the position of a pivot point of the pivot control transmission device to the position of a pivot point of the pair of holding elements i.e. the relative position between the swivel axis of the swivel control transmission device and the swivel axis of the associated pair of holding elements on the circular arc is achieved in that the swivel axis of the swivel control transmission device is formed by a shaft rotatably mounted in a positioning ring, the positioning ring being adjustable in the circumferential direction the stationary central axis of the gripper wheel is fixed.
  • An adjusting device for the positioning ring is preferably provided, with a bolt which is rotatably mounted on the end face in the housing of the gripper wheel and is connected to an adjusting scale and has an eccentrically arranged adjusting pin at its inner end in engagement with a recess in the positioning ring.
  • the central pivoting control curve which is fixed on the central central axis, preferably adjustable in the circumferential direction, is connected to an actuating device and an adjustment scale that can be read on the housing, so that one adjustment is possible with regard to the pivoting control of each pair of holding jaws is given by the angular position of the positioning ring as well as by the angular position of the central pivot control curve.
  • the central control cam device is preferably designed as a double cam and the roller lever of the swivel control transmission device carrying the cam rollers is fixed with a shaft rotatably mounted in the positioning ring connected, which at its end located on the opposite side of the positioning ring carries a leg fixed on the shaft, which is movably coupled by means of a pin to a connecting member, and a bolt is also provided, which is also rotatably movable with the Connecting member and on the other hand is connected to a leg, and the leg is rigidly fixed on a hollow shaft which carries the inner holding jaws of the holding jaw pair outside the housing.
  • the outer holding jaw of the pair of holding jaws is preferably fastened on a shaft which is axially slidably movable within the hollow shaft and pivotable together with the hollow shaft by locking with the hollow shaft, wherein the shaft is given an axial movement by a control cam fixed on the stationary central axis.
  • the position of the pivot points corresponding to a desired candy length ie the axis position of the pivot control transmission device relative to the pivot points of the support arms of the holding jaw pairs and the associated position of the corresponding control cam means, can be determined beforehand and the axis positions determining the law of motion can be set accordingly, preferably on the basis of scales.
  • the setting scale for setting the circumferential position of the positioning ring and the setting scale for setting the circumferential position of the central pivot control cam are preferably used for this purpose. This ensures that the support arms of the pairs of holding jaws are always in a vertical position to the mass strand for any length of candy at the time of detection and the surfaces of the holding jaws capture the candy separated from the mass strand completely parallel.
  • a trouble-free severing of the mass strand is also achieved without compression or other deformation.
  • the rotational speed of the pairs of holding jaws corresponds to the speed of the mass strand.
  • Fig. 5 shows the movement of the holding jaws with a minimum and maximum length of candy during the separation process and the detection of the candy.
  • a gripper wheel 1 as can be seen from FIG. 1, is arranged above a mass strand 2.
  • the position of the retaining jaw pairs 3 during one revolution of the gripper wheel 1 can be seen from this figure.
  • a cutting device 4 is provided below the mass strand 2, which has one or more rotating knives 5, which separate from the mass strand 2 candies B of a soft consistency of length L.
  • the sweets B captured by the holding jaws 4 are transferred to a transfer wheel 6 for further processing.
  • the gripper wheel 1 Compared to the mass strand 2 in order to achieve a high level of effectiveness of the packaging machine, the holding jaw pairs 3 of the gripper wheel 1 and the holding jaw pairs 44 of the transfer wheel 6 have the same rotational speed.
  • the gripper wheel 1 consists of a housing 7 which is mounted on a stationary central axis 8.
  • a positioning ring rotatable about the axis 8
  • a cam disk 10 is fixed on the central axis 8 as a central swivel control curve, which is advantageously designed as a double curve and can be rotated and locked around the central axis 8 in a certain angular range.
  • the cam disk 10 is assigned a dimension 11 outside the housing 7, on which the cam disk is adjusted
  • a swivel control transmission device engages with the cam disk 10 for each holding jaw pair 3.
  • Rollers 12, which are fastened to a roller lever 13, run off in the cam disk 10.
  • the roller lever 13 is fixed to a shaft 14.
  • the shaft 14 is rotatably mounted in the positioning ring 9 at a distance with the radius R (FIGS. 3 and 4) of its pivot axis X from the longitudinal central axis of the central central axis 8.
  • a leg 15 is attached, which is pivotally connected to a connecting member 17 at its opposite end by means of a pin 16.
  • a bolt 18 is rotatably mounted on the one hand in the free end of the connecting member 17 and on the other hand in a leg 19.
  • the leg 19 is fixed on a hollow shaft 20 which is rotatably mounted in the housing 7 of the gripper wheel 1 and which carries the inner support arm 21 of the inner holding jaw 22 outside the housing 7.
  • the center axis or pivot axis Y of the hollow shaft 20 is also at a distance from the longitudinal center axis of the central center axis 8 with the radius R, the pivot axis X of the pivot control transmission device and the pivot axis Y of the hollow shaft 20 (and the shaft 23 coaxial therewith for the outer holding jaws 27, as will be explained in the following) are thus on a circular arc K, with the longitudinal central axis of the central central axis 8 as a pivot center.
  • a shaft 23 is arranged coaxially axially displaceably but non-rotatably connected to the hollow shaft 20.
  • a lever arm 24 is rigidly fastened on the end of the shaft 23, inside the housing 7, which carries a bolt 25 at its free end and in turn engages axially displaceably in a bore of the leg 19.
  • the outer support arm 26 of the outer holding jaw 27 is fastened on the shaft 23.
  • the holding jaws 22 and 27 form a pair of holding jaws 3.
  • an angle lever 29 acting on the shaft 23 on the end face inside the housing 7 is provided.
  • the angle lever 29 is pivotally mounted with pivot 30 in a bearing block 31 fastened to the housing 7. While one lever arm of the angle lever 29 carries a cam roller 32, which rolls on a cam disk 33 fixed on the central axis 8, the other lever arm has a pressure piece 34 acting on the end face of the shaft 23.
  • a pivotable bolt is in the housing 7 zen 35 mounted outside of the housing 7 with a Setting scale 36 and an adjusting device for the rotation of the rotatable bolt 35, for example a key surface 37, and is provided with means for locking the rotatable bolt 35 in the selected position.
  • an adjusting pin 38 is arranged eccentrically, which engages in a groove 39 of the positioning ring 9.
  • the inner holding jaws 22 are made longer by a working width of the cutting device than the outer holding jaws 27 and provided with a slot 40 for the passage of the strand knife 5.
  • the mode of operation of the conveyor device is as follows:
  • the ground strand 2 is fed to the gripper wheel 1 in a uniform tangential manner.
  • Individual sweets B of predetermined length L are separated by the rotating cutting knife 5 of the cutting device 4 and are gripped by a pair of holding jaws 3.
  • the separating knife 5 also performs a movement running with the mass strand 2 in addition to its rotational movement, so that compression of the mass strand 2 is avoided.
  • the inner holding jaw 22 of the holding jaw pair 3 serves to stabilize the mass strand 2 against the cutting direction of the separating knife 5.
  • the separating knife 5 passes through the slot in the holding jaw 22.
  • the holding jaw pairs 3 of the gripper wheel 1 Since the peripheral speed of the holding jaw pairs 3 of the gripper wheel 1 is greater than the conveying speed of the mass strand 3, the holding jaw pairs 3 must receive a delay during the cutting process and the detection of the candy B in order to keep up with the To move mass strand 3 in synchronism. For this purpose, the pairs of holding jaws 3 of the gripper wheel 1 are given before being immersed in the range of motion of the mass strand 2 a lead. After the receipt of the candy B, the pairs of holding jaws 3 are each accelerated again.
  • the candies B are transferred from the gripper wheel 1 to the transfer wheel 6.
  • the gripper wheel 1 and the transfer wheel 6 rotate in opposite directions at the same peripheral speed.
  • the support arms 21, 26 of the relevant pair of holding jaws 3 have again reached their radial central position.
  • the advance of the holding jaw pairs 3 is required.
  • the acceleration and deceleration of the holding jaw pairs 3 are generated by the rotation of the gripper wheel 1 about the stationary central axis 8.
  • the cam rollers 12 of all swivel control transmission devices roll on the stationary double curve 10 (central swivel control curve).
  • the lifting movement of the cam rollers is carried out as a pivoting movement for each pair of holding jaws 3 via the roller lever 13, the shaft 14, the leg 15, the pin 16, the connecting member 17, the pin 18 and the leg 19 onto the hollow shaft 20 and from there onto the support arm 21 and thus transferred to the inner holding jaws 22 of the relevant holding jaw pair 3.
  • the outer holding jaw 27 of this pair of holding jaws 3 receives the same pivoting movement via the support arm 26, the shaft 23, the lever arm 24 and the bolt 25 from the leg 19.
  • Each pair of holding jaws 3 is opened and closed by rolling off the associated cam roller 32 on the stationary cam plate 33 in cooperation with the compression spring 28.
  • the size of the pivoting movement of the holding jaw pairs 3 depends on the length of the candies B to be processed, ie at longer sweets this swinging movement is smaller than with shorter sweets B. This is due to the fact that, based on the number of cycles of the separating knife 5, the conveying speed of the mass strand 2 with longer sweets B must be greater in order to have a longer one in the same time unit of the cutting device 4 Feed piece of the mass strand 2.
  • FIG. 3 illustrates the setting state for the minimum candy length L.
  • pivot point 42 and pivot point 43 overlap for each holding element pair 3. This corresponds to the largest pivot angle (see FIG. 1) of the carrier arms 21 and 26.
  • the carrier arms 21 and 26 of each pair of holding jaws 3 assume their vertical central position with respect to the direction of transport of the mass strand 2 at the time when the candy B is detected. In the movement diagram according to FIG. 5, this corresponds to point A.
  • the movement course of the holding jaw pairs 3 with the smallest candy length L is represented in FIG. 5 by the curve L m ⁇ n .
  • the swivel angle u> of the support arms 21, 26 of the holding jaw pairs 3 is shown on the coordinate and the angle of rotation ⁇ of the gripper wheel 1 on the abscissa.
  • the positioning ring 9 is adjusted by an amount corresponding to the length of candy L to be processed by rotating the rotatable bolt 35. The size of the adjustment can be read on the setting scale 36.
  • the pivot points 42, d. H . the pivot axes X of the angle levers 13 and of the leg 15 are simultaneously displaced by the same amount relative to the pivot points 43 (position of the pivot axes Y) on the circular arc determined by the radius R and the pivot angle ⁇ is reduced.
  • Fig. 4 shows the gear ratios for the greatest length of candy «The dimensions of the transmission links are chosen so that each pair of holding jaws 3 assumes the required radially directed, vertical central position at the time when the candy B is detected.
  • the course of movement of the pairs of holding jaws 3 in the area of cutting and grasping corresponds here to the curve Lma ⁇ in FIG. 5, the time at which the sweets B are grasped must again be at point A.
  • the central swivel control cam (cam) 10 is to be rotated by the same amount on the stationary central axis 8 and then locked.
  • the required rotation can be read off on the setting scale 11.
  • a candy length L is separated from the mass strand 2 during the rotation angle ⁇ 'of the gripper wheel 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Confectionery (AREA)
  • Specific Conveyance Elements (AREA)

Abstract

L'invention concerne un dispositif convoyeur pour bonbons, comprenant une roue preneuse (1) entraînée en rotation autour d'un axe fixe (8), présentant une structure (7) munie d'une pluralité de paires de mâchoires de maintien (3) pivotantes, à commande par cames, destinées à saisir et à amener à une roue de transfert (6), des bonbons (B) provenant d'un boudin continu découpé au moyen d'un dispositif de coupe, lesdites mâchoires de maintien (22, 27) de chacune des paires (3) étant montées axialement pivotantes l'une par rapport à l'autre. Conformément à l'invention, un axe de pivotement (X) d'un dispositif de transmission de la commande de pivotement d'une paire de mâchoires (3) et un axe de pivotement (Y) de mâchoires (22, 27) de la paire de mâchoires (3) sont disposés, en tant que centre de pivotement, sur un arc de cercle (K), avec un rayon de rotation égal (R) par rapport à l'axe fixe (8), la position relative d'un axe de pivotement (X) par rapport à l'autre axe de pivotement (Y) étant réglable sur l'arc de cercle (K).
EP94902520A 1992-06-16 1993-06-14 Dispositif convoyeur pour bonbons Expired - Lifetime EP0644847B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4219631A DE4219631C2 (de) 1992-06-16 1992-06-16 Vorrichtung zur kontinuierlichen Übernahme der von einem mit gleichbleibender Geschwindigkeit zugeführtem Massagestrang abgetrennten Bonbons
DE4219631 1992-06-16
PCT/EP1993/001499 WO1993025440A1 (fr) 1992-06-16 1993-06-14 Dispositif convoyeur pour bonbons

Publications (2)

Publication Number Publication Date
EP0644847A1 true EP0644847A1 (fr) 1995-03-29
EP0644847B1 EP0644847B1 (fr) 1996-12-04

Family

ID=6461093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94902520A Expired - Lifetime EP0644847B1 (fr) 1992-06-16 1993-06-14 Dispositif convoyeur pour bonbons

Country Status (4)

Country Link
EP (1) EP0644847B1 (fr)
DE (2) DE4219631C2 (fr)
LT (1) LT3186B (fr)
WO (1) WO1993025440A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1266230B1 (it) † 1993-01-29 1996-12-27 Azionaria Costruzioni Acma Spa Macchina incantatrice,particolarmente per prodotti alimentari quali caramelle e simili.
IT1285515B1 (it) * 1996-02-05 1998-06-08 Azionaria Costruzioni Acma Spa Unita' di manipolazione per prodotti
DE19616989C1 (de) * 1996-04-27 1997-10-02 Bosch Gmbh Robert Vorrichtung zum Abtrennen und Aufnehmen von Bonbons
IT1285911B1 (it) * 1996-04-30 1998-06-26 Gd Spa Dispositivo convogliatore di prodotti
DE19715949A1 (de) 1997-04-16 1998-10-22 Pactec Verpackungsmaschinen Fa Verfahren zur Vereinzelung von kleinformatigen Gegenständen und Vereinzelungsvorrichtung
AUPS061402A0 (en) 2002-02-19 2002-03-14 Tna Australia Pty Limited A device to aid packaging items
DE102013200596A1 (de) * 2013-01-16 2014-07-31 Robert Bosch Gmbh Vorrichtung und Verfahren zum Ausrichten eines Produktes in einer Verpackungsmaschine
CN116573221B (zh) * 2023-07-14 2023-10-03 烟台金丝猴食品科技有限公司 袋装物料装箱机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2615007A1 (de) * 1976-04-07 1977-10-20 Thyssen Plastik Maschinen Gmbh Vorrichtung zum greifen und transportieren von koerpern, insbesondere kunststoffrohren
DD147653A1 (de) * 1979-12-06 1981-04-15 Werner Kmoch Vorrichtung zum einwickeln von bonbons
GB2069440B (en) * 1980-02-14 1983-11-02 Baker Perkins Holdings Ltd Wrapping machines
DD210656A1 (de) * 1982-09-30 1984-06-20 Nagema Veb K Vorrichtung zum einwickeln von bonbons
DD263271A1 (de) * 1987-08-17 1988-12-28 Nagema Veb K Vorrichtung zum kontinuierlichen uebernehmen von bonbons
US4984680A (en) * 1988-10-26 1991-01-15 Shibuya Kogyo Co., Ltd. Article transfer apparatus with clamper

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9325440A1 *

Also Published As

Publication number Publication date
LTIP637A (lt) 1994-08-25
LT3186B (en) 1995-03-27
DE4219631A1 (de) 1993-12-23
EP0644847B1 (fr) 1996-12-04
DE59304690D1 (de) 1997-01-16
WO1993025440A1 (fr) 1993-12-23
DE4219631C2 (de) 1994-04-07

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