WO2015036807A1 - Machine d'emballage sous film étirable de charges à l'aide d'un film étirable - Google Patents
Machine d'emballage sous film étirable de charges à l'aide d'un film étirable Download PDFInfo
- Publication number
- WO2015036807A1 WO2015036807A1 PCT/HU2014/000079 HU2014000079W WO2015036807A1 WO 2015036807 A1 WO2015036807 A1 WO 2015036807A1 HU 2014000079 W HU2014000079 W HU 2014000079W WO 2015036807 A1 WO2015036807 A1 WO 2015036807A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- film
- stretching
- magnet
- roller
- machine
- Prior art date
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
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
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/04—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material the articles being rotated
- B65B11/045—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material the articles being rotated by rotating platforms supporting the articles
-
- 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
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/56—Rolling articles with wrappers along a supporting surface
-
- 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
- B65B57/02—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of binding or wrapping material, containers, or packages
- B65B57/04—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of binding or wrapping material, containers, or packages and operating to control, or to stop, the feed of such material, containers, or packages
-
- 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
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B2011/002—Prestretching mechanism in wrapping machines
-
- 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
- B65B2210/00—Specific aspects of the packaging machine
- B65B2210/14—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles
- B65B2210/18—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles the web dispenser being mounted on a rotary ring
-
- 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
- B65B2210/00—Specific aspects of the packaging machine
- B65B2210/14—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles
- B65B2210/20—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles the web dispenser being mounted on a rotary arm
Definitions
- the invention relates to a machine for wrapping loads with stretchable film.
- the vertical and top surface of loads can also be wrapped using the machine.
- the load wrapped with the shrinkable cap is rotated by the turntable and a burner nozzle fastened on a vertically moving carriage shrinks the upper and lower parts of the shrinkable cap circularly and the lateral part along a screw line performing a programmed movement.
- the application of the shrinkable cap provides appropriate protection to the load owing to the wrapping the upper part of the load.
- the disadvantage of the machine is that the shrink-hood must be made previously and put onto the load.
- the manufacturing of the cap requires manual labor, in addition the specific demand of film is great, as well as the energy requirement of the shrinking is also great enough.
- the above mentioned structural units of the machines make possible that the pre- stretched film wraps the load along a screw line as result of the rotating movement of the load and the vertical movement of the film.
- the stretch of the film, the overlap and the number of film windings can be changed depending on the properties of the load and the requirements of fastening.
- the patent description of registration number of HUP 210302 discloses a very advantageously applicable machine enabling the stretch wrapping of loads with stretchable film also on the top surface of the load with the film applied for the wrapping of lateral surface.
- the solution ensures the perfect protection of the goods through continuity of the film, rendering unnecessary applying a shrink hood in this way.
- the essence of the machine according to the solution is that the film applied for stretch wrapping the lateral surface of the load by winding up along a screw line is led above the load and tilted from vertical position to horizontal one during the rotation of the load. The film is then tilted back to the vertical position during a descending movement and the wrapping of the upper part is made in this way.
- the machine according to the patent has a base frame, a turntable mounted in it and a mast fastened on the base frame.
- a carriage vertically moving the film is mounted on the mentioned mast and bushing is supporting the carriage.
- a shaft is inserted into the bushing and a reel of film is connected to the one end and the tilting actuator is connected to the other end of the shaft.
- a sensor for the vertical (basic) position and a sensor for the horizontal position are mounted on the base frame, triggering flags mounted on the turntable associated to the corners of the load, as operating elements controlling the tilting.
- the disadvantage of the machine is that the stretch tension value can attain only the nearest digital value according to the step values, so it cannot be followed proportionally, consequently the tension of the film cannot be set precisely.
- the film can occasionally be torn by the sharp corners of a load.
- the film can break to inside the corners of the most loaded lower layers of the loads packed in cardboard and corrugated paper boxes.
- the swingarm deviating along a circular arc under influence of the tension of the film is pulled or pushed by one or more springs with quasi constant force - between the two end positions of the deviation - to the direction corresponding to the smaller tension of the film.
- the problem with this solution is that the pulling or pushing force of the springs is not linear along the length of pulling or pushing, consequently a pre-stretching unit with springs has also not linear but progressive behavior.
- the invention relates to an machine for stretch wrapping vertical and top surface of loads with stretchable film having a base frame, a turntable mounted in it and a mast fastened on the base frame.
- a carriage vertically moving the film is mounted on the mentioned mast and bushing is supporting the carriage.
- a shaft is inserted into the bushing and a reel of film is connected to the one end and the tilting actuator is connected to the other end of the shaft.
- a sensor for the vertical (basic) position and a sensor for the horizontal position are mounted on the base frame, triggering flags mounted on the turntable associated to the corners of the load, as operating elements controlling the tilting.
- the characteristics of the machine are that it has a swinging film tension setting unit connected to the other end of the pin, which has pre-stretching rollers provided with a pre-stretching motor and fastened to the frame of the film carrying and pre-stretching unit, a leading roller containing an arm provided with a roller, a tension setting pneumatic cylinder having a piston with magnet and an analogous displacement transducer, furthermore a pressure regulator and a frequency changer, where the film winded off from the film reel is led between pre-stretching rollers connected one to another with a transmission and one of them is driven by a pre-stretching motor, then the film is led around a leading roller having an arm moving around a centre of rotation and provided with a roller, this arm is connected to the piston provided with magnet and arranged
- the turntable of the machine is driven with a turntable driving motor.
- the piston provided with magnet of the machine is moved between two end positions in relation to the set reference value through the pressure regulator.
- the Figure 1 shows the schematic representation of the machine, while the Figure 2 shows the regulating elements of the machine and their connections.
- the Figure 1 shows an advantageous embodiment of the machine.
- the solution covers among others also those machines having more than two pre-stretching rollers and their drive can be either identical to the one shown or different from it.
- the base frame 1, the turntable 2 mounted in it and the load 13 is positioned on the turntable 2 are shown in the Figure 1.
- the carriage 4 vertically moving the film reel 7 is fastened to the mast 3 mounted on the base frame 1 and bushing 5 are formed on the carriage 4.
- a shaft 6 is inserted into bushing 5, a tilting actuator 8 is connected to the one end and a film tension setting unit 22 is connected to the other end of it.
- the home position sensor 9 and the horizontal position sensor 10 are arranged on the base frame 1, and (tilting controlling) triggering flags 12 A, 12B, 12C, 12D are controlling the tilting associated to the corners of the load 14, as well as a home position sensor 9 are mounted on the turntable 2.
- the swinging film tension setting unit 22 fastened to the frame of the film holding and pre-stretching unit 23 has pre-stretching rollers 7A provided with a pre-stretching motor 20, a leading roller 7B containing an arm provided with a roller 7C, a tension setting pneumatic cylinder 16 having an analogous displacement transducer 17 and supplied with a piston provided with magnet 16 A, a pressure regulator 18 and a frequency changer
- the film winded off from the film reel 7 is led between the pre-stretching rollers 7A connected one to another with a transmission 19 and one of them is driven with the pre- stretching motor 20, then the film is led around a leading roller 7B having an arm moving around a centre of rotation and the arm is provided with a roller 7C.
- the arm provided with the roller 7C is connected to a piston provided with magnet 16A and the piston provided with magnet 16A is arranged in a tension setting pneumatic cylinder 16 provided with an analogous displacement transducer 17.
- the piston provided with magnet 16A is connected to a pressure regulator 18 and a frequency changer 15.
- the frequency changer 15 is connected also to the pre-stretching motor 20 of the pre-stretching rollers 7A.
- the turntable 2 is driven with a turntable driving motor 21.
- the piston provided with magnet 16A is moved by a pressure regulator 18 between two end positions in relation to the set reference value.
- the transmission 19 can be of any usual type, advantageously one with chain, V-belt, gears, timing belt etc.
- the Figure 2 shows the tension setting pneumatic cylinder 16 having the piston provided with magnet 16A and the analogous displacement transducer 17 connected to the pressure regulator 18.
- the machine contains a tension setting pneumatic cylinder 16 equipped with a piston provided with magnet 16 A, charged on one side and a pressure regulator 18 connected to it, applicable for setting the tension of the film in relation to an targeted reference value.
- the tension setting pneumatic cylinder 16 is provided with an analogous displacement transducer 17 measuring the position of the piston provided with magnet 16A.
- the transducer transforms the position to an electric signal characterizing it and regulates with that the film pre-stretching motor 20 through a frequency changer 15.
- the piston provided with magnet 16A moves towards the one end position.
- the rotary speed of the pre-stretching motor 20 is then diminished; it wraps the load 13 with less film during a unit of time until that film quantity during the unit of time becomes equal to or less than the quantity sufficient to wrap the load 13.
- the load 13 "pulls" the film because of that, it becomes stretched and the force characterizing its tension moves the arm provided with roller 7C towards the position characterizing the tersioned film.
- the piston provided with magnet 16A of the tension setting pneumatic cylinder 16 will be moved towards the other end position at the same time. Consequently, the analogous displacement transducer 17 sends accelerating signal to the frequency changer 15, which sends accelerating signal to the pre-stretching motor 20.
- the current position of the piston provided with magnet 16A is regulated by the resultant of the pressure set and the pulling force arising on the film.
- the pulling or pushing force of the tension setting pneumatic cylinder 16 can be set in the whole length of path, the pressure can be measured, so the stretching force can be repeated.
- the horizontal axis of the film tension setting unit 22 encloses an angle of twentyfive degrees with the radial direction of the main rotating movement, so the upper edge of the film turned to horizontal on the side of the real or imaginary centre of the main rotating movement is not elongated in such a great extent that it could lose the ability of shrinking back.
- the pre-stretching motor responds quicker, more accurately and with smaller redundancy under the influence of the increased tension
- the required value of the film tension can be better approached and kept by means of the regulating action of increased accuracy during the whole duration of the wrapping.
- the swinging film tension setting unit 22 which can be operated with motor-driven pre- stretching and at several pre-sets of pressure, adjustable in analogous way can be a separate complement of the machine wrapping with stretchable film, which can be built on all types of the machines wrapping with stretchable film, e. g. to the constructions with rotating arm or rotating ring, and the wrapping with film can be solved on a machine wrapping with stretchable film of any type with a relatively small cost using the stretchable film used for wrapping the lateral surfaces of the load 13.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
- Wrappers (AREA)
Abstract
La présente invention concerne une machine d'emballage de la surface verticale supérieure de charges (13) à l'aide d'un film étirable. La machine selon l'invention est dotée d'une unité de réglage de tension de film pivotante (22) raccordée à l'extrémité d'un arbre (6), ladite unité comprenant des rouleaux de pré-étirage (7A) dotés d'un moteur de pré-étirage (20), un rouleau avant (7B) contenant un bras doté d'un rouleau (7C), un cylindre pneumatique de réglage de tension (16) doté d'un capteur de déplacement analogue (17) et équipé d'un piston doté d'un aimant (16A), un régulateur de pression (18) et un changeur de fréquence (15) étant en outre fixés à un châssis de l'unité de support et de pré-étirage de film (23), le film déroulé de la bobine de film (7) étant mené entre les rouleaux de pré-étirage (7A), l'un étant raccordé à l'autre à l'aide d'une transmission (19) et l'un d'eux étant entraîné par un moteur de pré-étirage (20) puis le film étant mené autour du rouleau avant (7B) dont le bras pivote autour d'un centre de rotation et est doté du rouleau (7C), il est raccordé au piston doté de l'aimant (16A), qui est monté dans le cylindre pneumatique de réglage de tension (16), ce dernier étant doté du capteur de déplacement analogue (17) et le piston doté de l'aimant (16A) étant raccordé au régulateur de pression (18) et au changeur de fréquence (15), ledit changeur de fréquence (15) étant raccordé également au moteur de pré-étirage (20).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES14789860.5T ES2691958T3 (es) | 2013-09-12 | 2014-09-02 | Máquina para embalaje extensible de cargas con película extensible |
EP14789860.5A EP3049331B1 (fr) | 2013-09-12 | 2014-09-02 | Machine d'emballage sous film étirable de charges à l'aide d'un film étirable |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HUP1300528 | 2013-09-12 | ||
HU1300528A HU230529B1 (hu) | 2013-09-12 | 2013-09-12 | Berendezés egység rakományok burkolására nyújtható fóliával |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015036807A1 true WO2015036807A1 (fr) | 2015-03-19 |
Family
ID=89991248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/HU2014/000079 WO2015036807A1 (fr) | 2013-09-12 | 2014-09-02 | Machine d'emballage sous film étirable de charges à l'aide d'un film étirable |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3049331B1 (fr) |
ES (1) | ES2691958T3 (fr) |
HU (1) | HU230529B1 (fr) |
WO (1) | WO2015036807A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108387349A (zh) * | 2018-05-28 | 2018-08-10 | 杭州国辰机器人科技有限公司 | 一种食品行业套标膜通用漏气检测系统 |
IT201700082727A1 (it) * | 2017-07-20 | 2019-01-20 | Aetna Group Spa | Metodo e macchina per avvolgere un carico con un film |
CN113381160A (zh) * | 2021-06-18 | 2021-09-10 | 上海航天测控通信研究所 | 一种薄膜天线张紧力主动调整机构 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4458467A (en) * | 1981-03-31 | 1984-07-10 | Infra Pak (Dallas), Inc. | Pretensioner for stretchable film web with dancer roller compensation |
US4706443A (en) * | 1982-05-04 | 1987-11-17 | International Packaging Machines, Inc. | Constant tension stretch wrapping machine |
DE3633680A1 (de) | 1986-10-03 | 1988-04-14 | Dentz Verpackungsmaschinen Gmb | Vorrichtung zum schrumpfen von verpackungsfolien |
US5123230A (en) * | 1989-12-19 | 1992-06-23 | B. Hagemann Gmbh & Co. | Method and apparatus for wrapping articles in plastic |
US6185914B1 (en) * | 1999-09-10 | 2001-02-13 | 1137508 Ontario Ltd. | Pre-stretch web dispenser |
EP1083126A1 (fr) * | 1999-08-10 | 2001-03-14 | Sekisui Jushi Kabushiki Kaisha | Machine d'emballage sous film étirable |
EP1213223A1 (fr) * | 2000-11-14 | 2002-06-12 | OFFICINA MECCANICA SESTESE S.p.A. | Dispositif pour dérouler un film plastique étirable |
US20110120300A1 (en) * | 2008-07-15 | 2011-05-26 | Rota Engineering Limited | Linear Actuator and Position Sensing Apparatus Therefor |
EP2420804A2 (fr) * | 2010-08-20 | 2012-02-22 | Festo AG & Co. KG | Dispositif de mesure et procédé pour l'établissement et le traitement d'une position d'un élément de mesure |
-
2013
- 2013-09-12 HU HU1300528A patent/HU230529B1/hu unknown
-
2014
- 2014-09-02 WO PCT/HU2014/000079 patent/WO2015036807A1/fr active Application Filing
- 2014-09-02 EP EP14789860.5A patent/EP3049331B1/fr active Active
- 2014-09-02 ES ES14789860.5T patent/ES2691958T3/es active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4458467A (en) * | 1981-03-31 | 1984-07-10 | Infra Pak (Dallas), Inc. | Pretensioner for stretchable film web with dancer roller compensation |
US4706443A (en) * | 1982-05-04 | 1987-11-17 | International Packaging Machines, Inc. | Constant tension stretch wrapping machine |
DE3633680A1 (de) | 1986-10-03 | 1988-04-14 | Dentz Verpackungsmaschinen Gmb | Vorrichtung zum schrumpfen von verpackungsfolien |
US5123230A (en) * | 1989-12-19 | 1992-06-23 | B. Hagemann Gmbh & Co. | Method and apparatus for wrapping articles in plastic |
EP1083126A1 (fr) * | 1999-08-10 | 2001-03-14 | Sekisui Jushi Kabushiki Kaisha | Machine d'emballage sous film étirable |
US6185914B1 (en) * | 1999-09-10 | 2001-02-13 | 1137508 Ontario Ltd. | Pre-stretch web dispenser |
EP1213223A1 (fr) * | 2000-11-14 | 2002-06-12 | OFFICINA MECCANICA SESTESE S.p.A. | Dispositif pour dérouler un film plastique étirable |
US20110120300A1 (en) * | 2008-07-15 | 2011-05-26 | Rota Engineering Limited | Linear Actuator and Position Sensing Apparatus Therefor |
EP2420804A2 (fr) * | 2010-08-20 | 2012-02-22 | Festo AG & Co. KG | Dispositif de mesure et procédé pour l'établissement et le traitement d'une position d'un élément de mesure |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201700082727A1 (it) * | 2017-07-20 | 2019-01-20 | Aetna Group Spa | Metodo e macchina per avvolgere un carico con un film |
WO2019016752A1 (fr) * | 2017-07-20 | 2019-01-24 | Aetna Group S.P.A. | Procédé et machine pour emballer une charge à l'aide d'un film |
US11345493B2 (en) | 2017-07-20 | 2022-05-31 | Aetna Group S.P.A. | Method and machine for wrapping a load with film |
CN108387349A (zh) * | 2018-05-28 | 2018-08-10 | 杭州国辰机器人科技有限公司 | 一种食品行业套标膜通用漏气检测系统 |
CN108387349B (zh) * | 2018-05-28 | 2023-11-24 | 杭州国辰机器人科技有限公司 | 一种食品行业套标膜通用漏气检测系统 |
CN113381160A (zh) * | 2021-06-18 | 2021-09-10 | 上海航天测控通信研究所 | 一种薄膜天线张紧力主动调整机构 |
Also Published As
Publication number | Publication date |
---|---|
EP3049331B1 (fr) | 2018-08-22 |
ES2691958T3 (es) | 2018-11-29 |
EP3049331A1 (fr) | 2016-08-03 |
HU230529B1 (hu) | 2016-11-28 |
HUP1300528A2 (en) | 2015-03-30 |
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