EP3549876A2 - Dispositif de cerclage à entraînement électrique - Google Patents

Dispositif de cerclage à entraînement électrique Download PDF

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Publication number
EP3549876A2
EP3549876A2 EP18000027.5A EP18000027A EP3549876A2 EP 3549876 A2 EP3549876 A2 EP 3549876A2 EP 18000027 A EP18000027 A EP 18000027A EP 3549876 A2 EP3549876 A2 EP 3549876A2
Authority
EP
European Patent Office
Prior art keywords
strapping
welding
clamping
friction
mobile
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
EP18000027.5A
Other languages
German (de)
English (en)
Other versions
EP3549876B1 (fr
EP3549876A3 (fr
Inventor
Mirco Neeser
Roland Widmer
Flavio Finzo
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.)
Signode International IP Holdings LLC
Original Assignee
Signode International IP Holdings LLC
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 Signode International IP Holdings LLC filed Critical Signode International IP Holdings LLC
Priority to EP24193865.3A priority Critical patent/EP4438503A3/fr
Priority to EP20212224.8A priority patent/EP3819084A3/fr
Publication of EP3549876A2 publication Critical patent/EP3549876A2/fr
Publication of EP3549876A3 publication Critical patent/EP3549876A3/fr
Application granted granted Critical
Publication of EP3549876B1 publication Critical patent/EP3549876B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/185—Details of tools
    • B65B13/187—Motor means
    • 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
    • B65B13/00—Bundling articles
    • B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
    • B65B13/025—Hand-held tools
    • 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
    • B65B13/00—Bundling articles
    • B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
    • B65B13/025—Hand-held tools
    • B65B13/027—Hand-held tools for applying straps having preformed connecting means, e.g. cable ties
    • 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
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • 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
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/22—Means for controlling tension of binding means
    • 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
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/24—Securing ends of binding material
    • B65B13/32—Securing ends of binding material by welding, soldering, or heat-sealing; by applying adhesive
    • B65B13/322—Friction welding
    • 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
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/24—Securing ends of binding material
    • B65B13/32—Securing ends of binding material by welding, soldering, or heat-sealing; by applying adhesive
    • B65B13/327—Hand tools

Definitions

  • the invention relates to a mobile strapping device for strapping packaged goods with a strapping band, which comprises a tensioning device for applying a belt tension to a loop of a strapping belt, and a connecting device for establishing a connection to two superposed regions of the loop of the strapping belt, and a rechargeable energy storage for storage of energy which can be released as drive energy for motor drive movements at least for the connection device and / or for the tensioning device.
  • Such mobile strapping devices are used for strapping packaged goods with a plastic band.
  • a loop of the respective plastic strip is placed around the packaged goods.
  • the plastic tape is hereby deducted from a supply roll.
  • the end portion of the band overlaps with a portion of the band loop.
  • the strapping device is then applied to this two-layer region of the band, in which case the band is clamped in the strapping device, a band tension is applied to the band loop by means of the tensioning device and a closure is produced by means of the connection device at the loop between the two band layers.
  • closure technologies possible, among others, the friction welding.
  • the belt loop is pressed onto the belt with an oscillatingly moving friction shoe in the region of two ends.
  • the pressure and the heat generated by the movement melts the usually plastic-containing band locally for a short time. This creates between the two band layers a permanent and at most with great force again to be solved connection between the two band layers.
  • the loop is separated from the supply roll. The respective packaged goods are thereby strapped.
  • Such strapping devices generally have a rechargeable and optionally replaceable accumulator for supplying energy, with which DC motors are supplied with electrical energy.
  • the DC motors are provided in the portable mobile strapping devices for generating drive movements of the tensioning device and / or the welding device.
  • Such generic mobile strapping devices are often used in industry for the packaging of goods in continuous use. It is therefore desirable as simple as possible operation of the strapping devices. This is on the one hand a high reliability of the strapping device connected to the generation of high quality strapping and on the other hand the lowest possible loads for the serving people to be ensured. Previously known strapping tools can not be completely satisfactory in this respect.
  • the invention is therefore an object of the invention to provide a generic mobile strapping device of the type mentioned, which has a high reliability and good handling properties despite the possibility of at least largely automated generation of tape strapping.
  • a speed-dependent or speed-controlled clamping operation also allows a fast first clamping, ie a clamping with a high belt retraction speed, followed by a second clamping operation with reduced compared to the first tensioning tape retraction speed.
  • the belt retracting speeds can be particularly in such brushless motors due to the possibility of the speed of the motor shaft and the engine torque Adjust independently in certain areas to adjust the required in the two clamping operations the desired circumstances.
  • a strapping device can furthermore have an energy store designed as a lithium-ion accumulator, with which energy can be provided to drive a connecting device designed as a friction-welding device. It has been found that with such accumulators also a particularly good reliability can be achieved because these batteries provide sufficient energy to perform with mobile strapping a high number of Umreifungszyklen, even if high band tensions and applied at least largely automated strapping operations motor drive movements are to take place.
  • lithium ion accumulators in combination with friction welding equipment can be considered as an ideal complement to other storage for electrical energy.
  • the friction welding process as such is dependent on the pressure of the two belts on one another and on the frequency of the oscillatingly moving welding shoe or welding element.
  • frequencies of the welding shoe of approx. 250 - 300 Hz with a contact pressure of 300 - 350 N are aimed for.
  • a speed of an eccentric driving the welding shoe of approximately 6000 rpm to 7000 rpm is required on the drive side.
  • a welding process takes place in a period of 1.5 seconds to 2 seconds. If the eccentric shaft speed drops below the value of 6,000 rpm, the quality of the strap closure deteriorates markedly.
  • Lithium-ion Accumulators can provide the voltage required for a high speed significantly longer available.
  • lithium-ion batteries compared to other accumulators of comparable size, significantly longer, ie with a significantly higher number of strapping, still allow Reibschweissver barely with the desired strength.
  • the supply voltage provided by lithium-ion accumulators drops to values that should be avoided in friction-welding processes.
  • the signal for charging can also be provided as an indication to the user, that from now on the required quality of the subsequently generated strapping no longer exists.
  • lithium-ion batteries have a significantly higher energy density than conventional batteries, these advantages can be achieved even with respect to the size of smaller batteries.
  • the thus possible lower weight of the accumulators used is a further significant advantage, in particular for use in mobile portable strapping devices.
  • lithium-ion batteries in conjunction with at least one brushless DC motor as a drive for the clamping device and / or friction welding.
  • This can be further increased by a planetary gear, especially if the at least one planetary gear together with the brushless DC motor and the lithium-ion battery are arranged in the drive train for the clamping device and / or friction welding.
  • Independent meaning can also have a design of the strapping device, in which the tensioning device and the welding device are provided with only one common drive.
  • This only one drive can preferably as be designed electrical motor, with the drive movement successively the clamping device and the friction welding device can be driven.
  • this only a motor not only the drive movement of the welding process itself, but also a movement of the friction welding device from a rest position to a welding position in which a welding element of the friction-welding device rests on the band layers to be welded together with pressure and by an oscillating movement the band layers a Reibschweissharm generated.
  • the welding element of the friction-welding device in the rest position is preferably inactive and is preferably set in motion only at the beginning of a movement out of the rest position.
  • the strapping device is provided with means by which rotational positions of the motor shaft or positions of components of the strapping device dependent on the motor shaft can be determined.
  • the information about one or more rotational positions may preferably be used by a control of the strapping device to control components of the strapping device, such as the friction-welding device and / or the tensioning device.
  • a brushless DC motor is used as the drive, this can be done in a particularly simple manner.
  • Such motors must already for their commutation information about current positions of the rotating component of the engine, which is usually designed as a rotating armature determine.
  • detectors or sensors such as Hall sensors are provided on the motor, determine the rotational positions of the rotating engine component and provide the engine control available. This information can be used with advantage also in particular for controlling the friction-welding device.
  • a number of revolutions of the rotating component of the engine is determined to make a switching operation when a predetermined value for the revolutions.
  • This switching operation may in particular be a switching off of the friction-welding device to end the generation of a friction-welded connection.
  • the engine can not be turned off at one or more specific rotational positions or can only be turned off at one or more specific rotational positions.
  • a toggle device for transferring the welding device from the rest position into the welding position and back.
  • the lever of the toggle device connected to one another via a joint can be brought into its two end positions by overcoming two dead center positions, in which they hold the welding device in the rest position or in the welding position.
  • the toggle device is held at least in the two end positions by a respective force, preferably by a force delivered by a mechanical spring force.
  • the toggle device should only be able to get from one end position to the other by overcoming this force.
  • the toggle device Since this applies in particular to the welding position, the toggle device contributes to further increasing the functional reliability of the strapping device. Furthermore, the toggle device complements in an embodiment of the invention in addition to the toggle lever device also a brushless DC motor and a planetary gear having driveline of the strapping device for automated transfer of the welding device in its welding position in an advantageous manner, since all components are able to generate high torques or Only execute movements when high torque is present.
  • exclusively hand-operated inventive strapping device 1 has a housing 2, which surrounds the mechanism of the strapping device and on which a handle 3 for handling the device is formed.
  • the strapping apparatus is further provided with a base plate 4, the underside of which is provided for placement on an object to be packaged. On the base plate 4 and connected to the base plate not shown carrier of the strapping device all functional units of the strapping device 1 are attached.
  • the clamping device has for this purpose a tensioning wheel 7, with which the band can be detected for a clamping operation.
  • the tensioning wheel 7 acts together with a rocker 8, which can be pivoted by means of a rocker arm 9 from an end position with distance to the tensioning wheel in a second end position about a rocker pivot axis 8a, in which the rocker 8 is pressed against the tensioning wheel 7.
  • a welding of the two layers by means of the friction-welding device 8 of the strapping device can take place at one point of the belt loop on which two layers of the belt lie one above the other.
  • the strap loop can thereby be permanently closed.
  • the friction-welding device 10 is provided for this purpose with a welding shoe 11, which by mechanical pressure on the Strapping band and a simultaneous oscillating movement with a predetermined frequency melts the two layers of Umreifungsbands.
  • the plasticized or molten areas flow into each other and after cooling of the band then creates a connection between the two band layers. If necessary, then the belt loop can be separated from a supply roll of the tape by means of a cutting device of the strapping device 1, not shown.
  • the actuation of the tensioning device 6, the delivery of the friction-welding device 10 by means of a transfer device 19 (FIG. Fig. 6 ) of the friction-welding device 10 as well as the use of the friction-welding device per se and the operation of the cutting device are carried out using only a common electric motor 14, which provides a drive movement for each of these components.
  • a replaceable and removable in particular for charging accumulator 15 is arranged on the strapping device.
  • a supply of other external auxiliary energy, such as compressed air or other electricity, is in the strapping apparatus according to the Fig. 1 and 2 not provided.
  • the portable mobile strapping device 1 has a trained as a pressure switch actuator 16, which is provided for commissioning of the motor.
  • actuating element 16 17 three modes can be adjusted by means of a switch. In the first mode, both the tensioning device 6 and the friction-welding device 10 are actuated successively and automatically by actuation of the actuating element 16 without the need for further operator activity.
  • the switch 17 is switched to a second switching mode. In the second possible mode, only the tensioning device 6 is then released by actuating the actuating element 16.
  • a second actuating element 18 must be actuated by the operator.
  • the first actuating element 16 is to be actuated a second time.
  • the third mode is a kind of semi-automatic, in which the tension button 16 is to be pressed until the prestressable clamping force in stages or tensile stress in the band is reached. In this mode, it is possible to interrupt the clamping process by releasing the tensioning button 16, for example, to attach edge protectors to the Umreifungsgut under the strapping. By pressing the tension button, the clamping process can then be resumed.
  • This third mode can be combined with a separately triggered as well as with an automatically subsequent friction welding process.
  • motor shaft 27 designed as a brushless, grooved female rotor DC motor 14, a transmission device 13 is arranged.
  • the brushless DC motor 14 can be operated in both directions of rotation, with one direction of rotation being used as the drive movement of the clamping device 6 and the other direction of rotation being used as the drive movement of the welding device 10.
  • the in Fig. 4 brushless DC motor 14 shown purely schematically is formed with a grooved internal rotor (rotor) 20 with three Hall sensors HS1, HS2, HS3.
  • This EC motor (electronically commutated motor) has a permanent magnet in its rotor 20 and is provided with an electronic control 22 which is provided for electronic commutation in the stator 24.
  • the electronic controller 22 determines via the Hall sensors HS1, HS2, HS3, which also assume the function of position sensors in the embodiment, the respective instantaneous position of the rotor 20 and switches the electric magnetic field in the windings of the stator 24.
  • the phases are switched in response to the position of the rotor 20 to cause a rotational movement of the rotor in a certain direction of rotation, with a predeterminable variable speed and torque.
  • a so-called "1 quadrant motor drive amplifier” is used, which provides the motor with the voltage, as well as peak and continuous current available and controls.
  • the current flow for not shown coil strands of the stator 24 is controlled by a bridge circuit 25 (MOSFET transistors), ie commutated.
  • a not further shown temperature sensor is provided on the engine. It can thus rotate, rotate, and limit current the temperature is monitored and controlled.
  • the commutation is constructed as a separate print component and accommodated in the strapping device separately from the motor.
  • the power supply is ensured by the trained as a lithium-ion battery accumulator 15.
  • Such rechargeable batteries are based on a number of independent lithium-ion cells, in each of which at least substantially independently chemical processes for generating a potential difference between two poles of the respective cell take place.
  • the battery of the embodiment has eight cells and has a capacity of 2.6 amp hours.
  • As an active material or as a negative electrode of the lithium-ion battery graphite is provided.
  • the positive electrode of the accumulator often has lithium metal oxides, in particular in the form of layer structures.
  • the electrolyte used is usually anhydrous salts, such as lithium hexafluorophosphate or polymers.
  • the voltage delivered by a conventional lithium-ion battery is usually 3.6 volts.
  • the energy density of such accumulators is about 100 Wh / kg - 120 Wh / kg.
  • the transmission device 13 has a freewheel 36 arranged on the motor-side drive shaft, on which a sun gear 35 of a first planetary gear stage is arranged.
  • the freewheel 36 is only in one of the two possible directions of rotation of the drive, the rotational movement of the sun gear 35 on.
  • the sun gear 35 meshes with three Planentengan 37, which are in a conventional manner in engagement with a fixed ring gear 38.
  • Each of the planet gears 37 is in turn arranged on a respective shaft 39 associated therewith, which is in each case integrally connected to a driven gear 40.
  • the rotation of the planet gears 37 about the motor shaft 27 results in a rotational movement of the driven gear 40 about the motor shaft 27 and determines a rotational speed of this rotational movement of the output gear 40.
  • the output gear 40 is located on the freewheel 36 and is therefore also on the motor shaft stored.
  • This freewheel 36 causes both the sun gear 35 and the output gear 40 rotate only in one direction of rotation of the rotational movement of the motor shaft 27.
  • the freewheel 29 may, for example, of the type INA HFL0615 be as offered by the company Schaeffler KG, D-91074 Herzogenaurach.
  • the gear device 13 has on the motor-side output shaft 27 also a belonging to a second planetary gear toothed sun gear 28, through the recess while the shaft 27 is performed, in this case, the shaft 27 is not connected to the sun gear 28.
  • the sun gear is fixed to a disc 34, which in turn is connected to the planetary gears 37.
  • the rotational movement of the planetary gears 37 about the motor-side output shaft 27 is thus transmitted to the disc 34, which in turn transmits its rotational motion identical to the sun gear 28.
  • the sun gear 28 meshes with a plurality of planetary gears, namely three, each disposed on a parallel to the motor shaft 27 extending shaft 30 gears 31.
  • the shafts 30 of the three gears 31 are arranged stationary, i.
  • the three gears 31 are in turn with an internally toothed ring gear engaged, which has on its outer side a cam 32 and hereinafter referred to as the cam wheel 33.
  • the sun gear 28, the three gears 31 and the cam 33 are components of the second planetary gear stage.
  • the planetary gear input rotational rotation of the shaft 27 and the rotational movement of the cam wheel 33 are in a ratio of 60: 1, i. through the two-stage planetary gearbox takes place a 60-fold reduction.
  • a bevel gear 43 is also arranged on a second freewheel 42, which is in engagement with a second bevel gear, not shown.
  • This freewheel 42 also transmits only in one direction of rotation of the motor shaft 27, the rotational movement.
  • the direction of rotation, in which the freewheel 36 of the sun gear 35 and the freewheel 42 transmit the rotational movement of the motor shaft 27 are opposed to each other. This means that in one direction of rotation rotates only the freewheel 36 and in the other direction only the freewheel 42 with.
  • the second bevel gear is arranged at one end of a clamping shaft, not shown, which carries at its other end another planetary gear 46 ( Fig. 2 ).
  • the drive movement of the electric motor in a certain direction of rotation is thus transmitted to the two bevel gears 43 to the clamping shaft.
  • the tensioning wheel 49 of the tensioning device 6, which is designed as an internally toothed ring gear is thereby set in rotation.
  • the provided on its outer surface with a surface structure tensioning wheel 7 takes in its rotational movement, the respective strap through a frictional engagement, whereby the intended belt tension is applied to the belt loop.
  • the output gear 40 is formed in the region of its outer peripheral surface as a gear on which a toothed belt 50 of an envelope drive is arranged ( Fig. 5 and Fig. 6 ).
  • the toothed belt 50 also wraps around a relative to the output gear 40 in diameter smaller pinion 51, whose shaft drives an eccentric 52 for an oscillating reciprocating movement of the welding shoe 53.
  • a toothed belt drive and any other form of enveloping drives could be provided, such as a V-belt or chain drive.
  • the eccentric drive 52 has an eccentric shaft 54, on which an eccentric 55 is arranged, on which in turn sits a welding shoe arm 56 with a circular recess.
  • the eccentric rotational movement of the eccentric 55 about the axis of rotation 57 of the eccentric shaft 54 leads to a translational oscillating reciprocating motion of the welding shoe 53.
  • Both the eccentric 52 and the welding shoe 53 itself can also be formed in any other manner known per se.
  • the welding device is further provided with a toggle device 60, by means of which the welding device is moved from a rest position (FIG. Fig. 7 ) in a welding position ( Fig. 9 ) can be transferred.
  • the toggle device 60 is attached to the welding shoe arm 56 and in this case provided with a pivotable on Schweissschuharm 56 longer toggle lever 61.
  • the toggle device 60 is further provided with a pivotable about a pivot axis 62 pivoted pivot member 63 which acts in the toggle lever 60 as a shorter toggle.
  • the pivot axis 62 of the pivot member 63 in this case runs parallel to the axes of the motor shaft 27 and the eccentric shaft 57th
  • the pivotal movement is initiated by means of the cam 32 of the cam wheel 33, which in the counterclockwise rotation in the rotation - based on the representations of Fig. 7 to 9 -
  • the cam wheel 33 under the pivot member 63rd arrives ( Fig. 8 ).
  • a ramp-like rising surface 32a of the cam 32 in this case touches an inserted into the pivot member 63 contact element 64.
  • the pivot member 63 is thereby rotated clockwise about its pivot axis 62.
  • a two-part longitudinally adjustable toggle lever rod of the toggle lever 61 which is in two parts according to the principle "piston-cylinder", is arranged pivotable about a pivot axis 69.
  • the latter is also rotatably articulated to a pivot axis 65 designed as a further pivot point 65 of the welding shoe arm 56 in the vicinity of the welding shoe 53 and at a distance from the pivot axis 57 of the welding shoe arm 56.
  • a compression spring 67 is arranged on this, by means of which the toggle lever 61 is pressed both against the welding shoe arm 56 and against the pivoting element 63.
  • the pivoting member 63 is thus operatively connected with the toggle lever 61 and the welding shoe arm 56 with respect to its pivotal movements.
  • the in the representation of Fig. 6 and 9 counterclockwise driving movement of the electric motor is transmitted from the timing belt 50 to the now transferred by the toggle lever 60 in the welding position welding shoe 53, which is pressed on the two band layers and moves back and forth in an oscillating motion.
  • the welding time for generating a Reibschweisstress is determined by the fact that the adjustable number of revolutions of the cam wheel 33 is counted from the time from which the cam 32, the contact element 64 is actuated.
  • the number of revolutions of the shaft 27 of the brushless DC motor 14 is counted to determine the position of the cam wheel 33, from which the engine 14 is turned off and thus the welding process is to be terminated.
  • the described successive processes “clamping” and “welding” can be triggered jointly in a switching state of the actuating element 16.
  • the actuating element 16 is to be actuated once, whereby the electric motor 14 first runs in the first direction of rotation and in this case (exclusively) the tensioning device 6 is driven.
  • the belt tension to be applied to the respective belt may be at the strapping device preferably by means of a pushbutton in nine stages, the nine different Band voltage values correspond to be set. Alternatively, a continuous adjustment of the belt tension could be provided. Since the motor current from the torque of the tensioning wheel 7 and this in turn depends on the instantaneous belt tension, the applied belt tension can be adjusted in the form of a limit of the motor current via push buttons in nine stages on the control electronics of the strapping device.
  • the motor 14 After reaching an adjustable and thus predeterminable limit value for the motor current or for the belt tension, the motor 14 is turned off by its controller 22. Immediately thereafter, the motor is operated by the controller 22 in the reverse direction of rotation. As a result, in the manner described above, the welding shoe 53 is lowered onto the two superposed belt layers and the oscillating movement of the welding shoe is carried out to produce the friction-welded connection.
  • the actuator 16 By operating the switch 17, the actuator 16 can be occupied only with the function of triggering the clamping device. If such a setting is made, only the clamping device is put into operation by pressing the actuator and turned off again after reaching the preset belt tension. In order to trigger the Reibschweissvorgang the second actuator 18 must be actuated. However, apart from the separate triggering, the function of the friction welding device is identical to the other mode of the first actuating element.
  • rocker 8 by pressing the in the Fig. 2 . 10 . 11 illustrated rocker lever 9 pivoting movements to perform about the rocker axis 8a.
  • the rocker is this purpose by means of a behind the tensioning wheel 7 and therefore in Fig. 2 unrecognizable, rotatable cam moves.
  • the cam can perform a rotational movement of about 30 ° and move the rocker 8 and clamping plate 12 relative to the tensioning wheel 7, which allows insertion of the tape in the strapping or between the tensioning wheel 7 and clamping plate 12.
  • the tensioning wheel 7 facing toothed surface 12a (clamping surface) is concavely curved, wherein the radius of curvature corresponds to the radius of the tensioning wheel 7, or is slightly larger.
  • the toothed clamping plate 12 is arranged in a groove-shaped recess 71 of the rocker.
  • the clamping plate 12 is provided with a convexly curved contact surface 12 b, with which it is mounted in the recess 71 of the rocker 8 on a flat bearing surface 72 is.
  • the clamping plate 12 is able to perform in the position in the band running direction 70 relative to the rocker 8 and the tensioning wheel 7 tilting movements. Furthermore, the clamping plate 12 is fastened to the rocker 8 with a screw 73 carried out from below by the rocker. For this purpose, the screw is located in a slot 74 of the rocker, whose longitudinal extent runs parallel to the band path 70 in the strapping device. The clamping plate 12 is thereby additionally arranged longitudinally displaceable on the rocker 8 in addition to the tiltability.
  • the clamping rocker 8 In a clamping operation, first, the clamping rocker 8 from the rest position ( Fig. 10 ) in the clamping position ( Fig. 11 ). In the clamping position, the spring-loaded rocker 8 presses the clamping plate 12 in the direction of the tensioning wheel and clamps both tape layers between the tensioning wheel 7 and the clamping plate 12. Due to different strip thicknesses, different distances between the clamping plate 12 and the circumferential surface 7a of the tensioning wheel 7 can result. This not only different pivoting positions of the rocker 8 result, but also different position of the clamping plate 12 with respect to the circumferential direction of the tensioning wheel 7.
  • the clamping plate 12 is directed during the pressing of the tape by a longitudinal movement in the recess 71 and a tilting movement on the contact surface 12b on the support surface 72 independently so that the clamping plate 12 exerts over its entire length as uniform as possible pressure on the strapping.
  • the tensioning wheel 7 is turned on, the teeth of the clamping plate 12 holds the lower band position, while the tensioning wheel 7 detects the upper band position with its toothed peripheral surface 7a.
  • the rotational movement of the tensioning wheel 7 and the lower coefficient of friction between the two belt layers then causes the tensioning wheel to retract the upper belt ply and thus increase the tension in the belt loop to the desired tension value.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Control Of Electric Motors In General (AREA)
EP18000027.5A 2008-04-23 2009-01-06 Dispositif de cerclage à entraînement électrique Active EP3549876B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP24193865.3A EP4438503A3 (fr) 2008-04-23 2009-01-06 Dispositif de cerclage avec un entraînement électrique
EP20212224.8A EP3819084A3 (fr) 2008-04-23 2009-01-06 Appareil à cercler avec un entrainement électrique

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH6492008 2008-04-23
PCT/CH2009/000005 WO2009129637A1 (fr) 2008-04-23 2009-01-06 Dispositif de banderolage comportant un entraînement électrique
EP09734834A EP2285690A1 (fr) 2008-04-23 2009-01-06 Dispositif de banderolage comportant un entraînement électrique

Related Parent Applications (1)

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EP09734834A Division EP2285690A1 (fr) 2008-04-23 2009-01-06 Dispositif de banderolage comportant un entraînement électrique

Related Child Applications (3)

Application Number Title Priority Date Filing Date
EP24193865.3A Division EP4438503A3 (fr) 2008-04-23 2009-01-06 Dispositif de cerclage avec un entraînement électrique
EP20212224.8A Division EP3819084A3 (fr) 2008-04-23 2009-01-06 Appareil à cercler avec un entrainement électrique
EP20212224.8A Division-Into EP3819084A3 (fr) 2008-04-23 2009-01-06 Appareil à cercler avec un entrainement électrique

Publications (3)

Publication Number Publication Date
EP3549876A2 true EP3549876A2 (fr) 2019-10-09
EP3549876A3 EP3549876A3 (fr) 2020-01-22
EP3549876B1 EP3549876B1 (fr) 2021-03-10

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Family Applications (4)

Application Number Title Priority Date Filing Date
EP24193865.3A Pending EP4438503A3 (fr) 2008-04-23 2009-01-06 Dispositif de cerclage avec un entraînement électrique
EP20212224.8A Pending EP3819084A3 (fr) 2008-04-23 2009-01-06 Appareil à cercler avec un entrainement électrique
EP09734834A Ceased EP2285690A1 (fr) 2008-04-23 2009-01-06 Dispositif de banderolage comportant un entraînement électrique
EP18000027.5A Active EP3549876B1 (fr) 2008-04-23 2009-01-06 Dispositif de cerclage à entraînement électrique

Family Applications Before (3)

Application Number Title Priority Date Filing Date
EP24193865.3A Pending EP4438503A3 (fr) 2008-04-23 2009-01-06 Dispositif de cerclage avec un entraînement électrique
EP20212224.8A Pending EP3819084A3 (fr) 2008-04-23 2009-01-06 Appareil à cercler avec un entrainement électrique
EP09734834A Ceased EP2285690A1 (fr) 2008-04-23 2009-01-06 Dispositif de banderolage comportant un entraînement électrique

Country Status (8)

Country Link
US (1) US9254932B2 (fr)
EP (4) EP4438503A3 (fr)
JP (1) JP2011518089A (fr)
KR (1) KR101613251B1 (fr)
CN (2) CN102026873B (fr)
ES (1) ES2861948T3 (fr)
RU (1) RU2531628C2 (fr)
WO (1) WO2009129637A1 (fr)

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Also Published As

Publication number Publication date
EP4438503A2 (fr) 2024-10-02
ES2861948T3 (es) 2021-10-06
US9254932B2 (en) 2016-02-09
CN102026873B (zh) 2016-05-18
JP2011518089A (ja) 2011-06-23
EP3819084A3 (fr) 2021-08-04
EP3549876B1 (fr) 2021-03-10
EP4438503A3 (fr) 2025-09-03
CN201411057Y (zh) 2010-02-24
CN102026873A (zh) 2011-04-20
EP3819084A2 (fr) 2021-05-12
EP2285690A1 (fr) 2011-02-23
KR20110005821A (ko) 2011-01-19
KR101613251B1 (ko) 2016-04-18
RU2010147634A (ru) 2012-05-27
RU2531628C2 (ru) 2014-10-27
WO2009129637A1 (fr) 2009-10-29
US20110100233A1 (en) 2011-05-05

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