EP0626920A1 - Vorrichtung zur steuerung der packmittelzuführung an einer bonbonverpackungsmaschine. - Google Patents
Vorrichtung zur steuerung der packmittelzuführung an einer bonbonverpackungsmaschine.Info
- Publication number
- EP0626920A1 EP0626920A1 EP93902214A EP93902214A EP0626920A1 EP 0626920 A1 EP0626920 A1 EP 0626920A1 EP 93902214 A EP93902214 A EP 93902214A EP 93902214 A EP93902214 A EP 93902214A EP 0626920 A1 EP0626920 A1 EP 0626920A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cam
- roller
- take
- candy
- cams
- 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
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
- B65B57/00—Automatic control, checking, warning, or safety devices
- B65B57/10—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged
- B65B57/12—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged and operating to control, or stop, the feed of wrapping materials, containers, or packages
Definitions
- the invention relates to a device for controlling the supply of packaging material on a candy packaging machine as a function of the degree of filling of the pairs of holding elements of a candy conveyor, with a pair of draw-off rollers for supplying a packaging material web to a cutting device, a control cam pair consisting of congruent, 180 ° offset cams and with transmission means between the Cam discs and the pair of take-off rollers for venting a take-off roller in the absence of a candy between a pair of holding elements.
- DE-A-29 32 860 describes a device for a continuously operating wrapping machine in which, in addition to a wrapping wheel, a scanning wheel rotating in synchronization with it is arranged with radially pivotable scanning levers.
- the scanning levers are connected to pawls and roller levers, on which cam rollers are mounted, which roll on a central, fixed cam.
- the scanning lever in question pivots between these holding elements.
- the roller lever leading the scanning lever in question is locked, whereby a roller of the pair of packaging rollers is lifted off the packaging material web and the packaging material is transported via a cam segment and further lever mechanisms is interrupted. While the pair of holding elements of the wrapping wheel, in which there is no candy, passes the packaging material jig, no packaging material blank is fed.
- a disadvantage of this device is that, in the absence of two candies in a row, the packaging material take-off roller is briefly lowered from the area of the curve segment by the outgoing roller and raised again by the incoming roller, without this stroke of the removal roller being adjustable. This either leads to a short placement of the take-off roller and thus to the cutting off of narrow packaging sections, the so-called snippets, or, in another extreme case, to more shortened packaging sections.
- a device of the type mentioned in the preamble of claim 1 is known, the task of which is to effect the control of the packaging removal without latch mechanisms.
- the device consists of two cam disks arranged on one axis, which are congruent per se, but offset from one another by 180 °.
- the transmission ratio between cam disc and packaging machine is 1: 2.
- the cam discs are each assigned pivotally mounted cam levers which interact with a likewise pivotable lifting lever that carries the take-off roller. There is a gap between the free ends of the cam lever and the lifting lever, in which slats can be controlled.
- the invention is therefore based on the object to design a Vorrichtimg of the type mentioned so that a torsion-free lifting of the take-off roller and an optimal setting of the time for lifting and placing the take-off roller on the packaging material web, with a trouble-free packaging material supply, is guaranteed.
- the object is achieved in that the cams are each divided into an inner cam half and an outer cam half and are designed as a compact cam package, the inner cam halves and the outer cam halves of both cams are each firmly connected to one another and the inner cam halves relative to the outer cams Setting of saddle points formed between the cams are rotatable against each other.
- a pull rod is provided to control the movement of the non-stationary pulling roller, which is provided as a transmission means a pull rod which can be controlled indirectly by the cam disks and which is articulated radially to lift off a pulling roller, such that the longitudinal axis of the pull rod is essentially at right angles to the pull rod
- the cam disks are each assigned cam levers with cam rollers, each cam roller rolling on the respective cam disk and covering both halves of a cam disk.
- the cam levers are preferably provided with stops and pivotally mounted on a shaft.
- An advantageous design of the transmission means between the cam and and take-off roll is achieved further characterized in that a holder is fixed to the shaft, having the swivel-at its free end into the movement region of the stops "controls.
- the shaft has to a further preferred embodiment of the Invention on the end face an eccentrically arranged pin, to which a pull rod is assigned, which is mounted on the one hand on the pin and on the other hand concentrically on the shaft of the take-off roller, centered on the roller length.
- the solution according to the invention enables a functionally reliable feeding of the packaging sections.
- By twisting the inner to the outer half of the cam it is possible to optimally set the time for lifting the take-off roller and thus the interruption of the packaging material supply, as well as the time for placing the removal roller to continue the packaging material supply.
- This optimal setting is also optimally transferred to the take-off roller by the means for transferring the lifting movement of the cam disks to the take-off roller.
- Backlash and wear which are sources of error in particular in the high-performance range of 1500 cycles / min, can be kept extremely low, so that they have practically no effect on the packaging supply. Twisting of the transmission means is minimized.
- the shortening of the last section of packaging material before the interruption of the supply and the first section after the reattachment of the take-off roller can thus be kept low and the so-called snipping can be avoided.
- 1 is a front view of an embodiment of the device for controlling the supply of packaging material
- FIG. 2 is a view of the device in the direction of line A-A of FIG. 1,
- FIG. 3 shows a side view of a cam disk package according to FIG. 4, partly in section,
- 5 shows a schematic illustration of the cam profile with maximum shortening of the packaging sections
- 6 shows a schematic representation of the course of the curve with minimal possible shortening of the packaging sections.
- the device shown in Fig. 1 for controlling the supply of packaging material is between bobbins (not shown here) carrying the packaging material and a conveyor means for the candies, e.g. a wrapping wheel, which, as is generally known, was also not shown here.
- the packaging material P is fed to the device, coming from the candy, in the direction of the arrow along a packaging material table 1 and a packaging material brake 2.
- the packaging material brake 2 is arranged in a double-armed lever 3, which is pivotably mounted on the stationary axis 4.
- the lever 3 carries on its free arm a shaft 10 on which an elastic take-off roller 5 is fixed.
- On the take-off roller 5 is on the same level attached to a shaft 6, designed as a steel roller take-off roller 7.
- the packaging medium table 1 is interrupted in the area of the take-off rollers 5, 7.
- the take-off roller 5 is provided with parting lines 8 and covered with an elastic covering 9.
- the take-off rollers 5, 7 are driven as known and rotate in the direction of the arrow in synchronism.
- a rotating knife 34 with a fixed counter knife 35 for cutting off the packaging sections.
- the draw-off roller 7 While the draw-off roller 7 is mounted stationary, the draw-off roller 5 can be pivoted about the axis 4 against the tension of the spring 11.
- a tie rod 12 is concentric on the shaft 10 and in the center, based on the length of the Take-off roller 5, stored and arranged in the middle parting line 13 of the take-off roller 5.
- the pull rod 12 is adjustable in length.
- the free end of the pull rod 12 is mounted on a pin 14 which is arranged eccentrically on the end face of a shaft 15.
- a holder 16 On the shaft 15, a holder 16 is attached, on the free, fork-shaped end of two control elements 17, 17 'are mounted. These control elements 17, 17 'are designed as two-armed levers, one lever arm being articulated on each of an oscillating armature 18, 18', each of a pull magnet 19, 19 'fixed on the holder 16.
- cam levers 20, 20 ' On the shaft 15, two cam levers 20, 20 'are also pivoted freely, which carry rollers 21, 21' and stops 22, 22 '.
- the stops 22, 22 ' are operatively connected to the free lever arms of the control elements 17, 17'.
- the cam levers 20, 20 ' are loaded by means of compression springs 23, 23', so that the rollers 21, 21 'rest on the cams of a cam set 24.
- the curve package 24 is fixed on a rotating shaft 25.
- the curve packet 24 consists of two congruent cams 26, 27 which are arranged offset from one another by 180 °.
- Each of the cam disks 26, 27 consists of an inner disk (cam disk half) 26 ', 27' and an outer disk (cam disk half) 26 ", 27".
- the inner disks 26 ', 27' are connected to one another by a pin 28 and provided with an elongated hole 29.
- the outer disks 26 ", 27" are fixed by a pin 30 which has an eccentrically formed collar 31 which is located in the elongated hole 29 and is in operative connection with the inner disks 26 ', 27'.
- the cams 26, 27 are connected by means of screws 32 to a slotted clamping ring 33, which in turn on the Shaft 25 is clamped by means of a screw 37.
- the cam disc halves 26 ', 26 "and 27', 27" are installed and fixed congruently with one another and without curve offset, but the cam discs 26, 27 are offset from one another by 180 °.
- the screws 32 are loosened and the pin 30 is rotated.
- the eccentric collar 31 slightly rotates the inner cam disc halves 26 ', 27' against the outer 26 ", 27” so that the intersection points 36, 36 'of the curve of the cam disc 26, 27, referred to as the saddle point, can be lowered or raised. Since the inner curve halves 26 ', 27' are always adjusted together and the outer curve halves 26 ", 27" cannot change their position relative to one another, the saddle points 36, 36 'are always changed in the same order of magnitude.
- a rotation angle T of 180 ° is available for pulling off a section of packaging of a predetermined length.
- the uninterrupted line represents the stroke of the take-off roller 5 generated by the cam plate 27.
- the stroke is approximately 0.6 mm.
- the packaging material P is gripped by the take-off rollers 5, 7 and fed to the knife 34.
- the speeds of the packaging machine, the take-off rollers 5, 7 and the rotating knife 34, one revolution per cycle executes, are coordinated with one another in such a way that, in accordance with the specification, packaging sections of equal length are always cut off.
- a scan (not shown) determines that there is no candy between a pair of holding elements of a wrapping wheel, the pull magnet 19 receives a corresponding pulse.
- the oscillating armature 18 is attracted and the control element 17 is pivoted into the movement range of the stop 22. As a result, a forced run is produced between the cam disk 26 and the pull rod 12 articulated on the shaft 10 of the take-off roller 5.
- the shaft 15 is slightly rotated via the roller 21, cam lever 20, stop 22, control element 17 and the holder 16.
- This rotary movement is converted into an approximately rectilinear movement by means of the pin 14 arranged eccentrically on the shaft and transmitted to the pull rod 12, whereby the take-off roller 5 is lifted off the packaging material P and at the same time the packaging brake 2 is pressed against the packaging material P and the packaging table 1.
- the supply of packaging material is interrupted. The interruption must be such that the end of the packaging material web ends immediately in front of the movement area of the knife 34, but does not protrude into this, since a packaging material snippet would then be cut off.
- the take-off roller 5 is to be brought as close as possible to the packaging material in order to keep the shortening of the subsequent packaging material section as small as possible.
- the optimum is set by rotating the inner cam disc halves 26 ', 27' against the outer cam disc halves 26 ", 27", as already described. If the take-off roller 5 lowers by the amount .DELTA.s min, snipping is certainly avoided, but there is a considerable shortening of the packaging sections. When lowering the take-off roller 5 to ⁇ s max, a snip is just avoided and the shortening of the packaging material is the least. This is the optimal setting. It should be noted that since the total stroke of the take-off roller 5 is extremely small at only about 0.6 mm, the packaging material take-off, due to the elastic covering 9, begins even before the take-off roller 5 is completely lowered onto the take-off roller 7.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Basic Packing Technique (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4206167 | 1992-02-28 | ||
DE4206167A DE4206167C2 (de) | 1992-02-28 | 1992-02-28 | Vorrichtung zur Steuerung der Packmittelzuführung an einer Bonbonverpackungsmaschine |
PCT/EP1993/000090 WO1993016924A1 (de) | 1992-02-28 | 1993-01-15 | Vorrichtung zur steuerung der packmittelzuführung an einer bonbonverpackungsmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0626920A1 true EP0626920A1 (de) | 1994-12-07 |
EP0626920B1 EP0626920B1 (de) | 1996-04-24 |
Family
ID=6452801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93902214A Expired - Lifetime EP0626920B1 (de) | 1992-02-28 | 1993-01-15 | Vorrichtung zur steuerung der packmittelzuführung an einer bonbonverpackungsmaschine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0626920B1 (de) |
JP (1) | JPH07504143A (de) |
BR (1) | BR9305973A (de) |
DE (2) | DE4206167C2 (de) |
WO (1) | WO1993016924A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104176320B (zh) * | 2014-08-29 | 2016-01-20 | 成都三可实业有限公司 | 一种糖果包装机输纸装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2953880A (en) * | 1958-09-02 | 1960-09-27 | Redington Co F B | Wrapping machine |
US2995878A (en) * | 1958-10-14 | 1961-08-15 | Forgrove Mach | Wrapping machines |
DD138635A1 (de) * | 1978-09-04 | 1979-11-14 | Werner Kmoch | Vorrichtung zum abtasten der anwesenheit eines bonbons |
DD252354A1 (de) * | 1986-09-04 | 1987-12-16 | Nagema Veb K | Abtastvorrichtung |
DD278315A1 (de) * | 1988-12-20 | 1990-05-02 | Nagema Veb K | Vorrichtung zur steuerung des packmitteltransportes |
-
1992
- 1992-02-28 DE DE4206167A patent/DE4206167C2/de not_active Expired - Fee Related
-
1993
- 1993-01-15 JP JP5514478A patent/JPH07504143A/ja active Pending
- 1993-01-15 WO PCT/EP1993/000090 patent/WO1993016924A1/de active IP Right Grant
- 1993-01-15 BR BR9305973A patent/BR9305973A/pt unknown
- 1993-01-15 EP EP93902214A patent/EP0626920B1/de not_active Expired - Lifetime
- 1993-01-15 DE DE59302380T patent/DE59302380D1/de not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9316924A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0626920B1 (de) | 1996-04-24 |
DE4206167A1 (de) | 1993-09-02 |
WO1993016924A1 (de) | 1993-09-02 |
DE4206167C2 (de) | 1994-04-07 |
BR9305973A (pt) | 1997-10-21 |
DE59302380D1 (de) | 1996-05-30 |
JPH07504143A (ja) | 1995-05-11 |
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