Abstract

The invention relates to a tensioning device of a strapping device for strapping packaged material with a strapping strip, in particular with a plastic strapping strip, said device being provided with a tensioning wheel which is operatively connected to or can be operatively connected to a drive device in order to rotate the tensioning wheel about a rotational axis, said tensioning wheel being provided with a circumferential surface which is designed to engage into the strapping strip. The tensioning device is to be improved such that disadvantages occurring due to the relative speed between the tensioning wheel and the strip during the strip retraction phase are prevented as much as possible. This is achieved in that at least one movable spacer is provided on the tensioning wheel in the region of the circumferential surface of the tensioning wheel, said spacer being arrangeable in a first position and in a second position different from the first position. In the first position, the spacer can be arranged at a first distance to the rotational axis of the tensioning wheel at least in some regions with respect to a circumferential direction of the tensioning unit and at a second distance to the rotational axis of the tensioning wheel at least in some sections in the second position. The first distance differs from the second distance, and the spacer projects beyond the circumferential surface of the tensioning wheel in at least one of the two positions.

IPC Classes  ?

• B65B 13/06 - Stationary ducts or channels
• B65B 13/22 - Means for controlling tension of binding means

Abstract

The invention relates to a strapping head or to a strapping device or to a strapping apparatus for strapping packaged goods by means of a strapping strip, in particular by means of a plastic strapping strip, which is provided with a feeding and tensioning device which has a plurality of wheels for transmitting a feed movement, reverse pull movement and tensioning movement to the strapping strip, wherein at least one of said wheels is or can be operatively connected to a drive device in order to set the at least one of the wheels moving rotationally about an axis of rotation for the feed movement, reverse pull movement and tensioning movement. The problem addressed by the invention is that of improving said strapping head, strapping device or strapping apparatus to the effect that the functional reliability of the strapping head is improved with regard to a possible formation of waves in the strip after the formation of a strip loop by a strip feed movement. This problem is solved by a means that can be actuated, by means of which at least one wheel of a wheel pair of the feed device can be switched to a state in which the strapping strip can be displaced between the wheel pair in a direction opposed to the strip feed movement without transferring any motor drive movement to the strapping strip.

IPC Classes  ?

• B65B 13/06 - Stationary ducts or channels
• B65B 13/22 - Means for controlling tension of binding means

Abstract

The invention relates to a strapping apparatus of a strapping device for strapping packed goods by means of a strap, in particular a plastic strap, which strapping apparatus is provided with a strap-advancing apparatus for advancing the strap during the formation of a strap loop, a strap-retracting apparatus for retracting the strap after the strap loop has been formed in order to bring the strap in contact with the packed goods, and a tensioning apparatus, by means of which a strap tension of the strap lying against the packed goods can be increased. The problem addressed by the invention is improving said strapping apparatus to the effect that the strapping head can be made as compact as possible. This problem is solved in that only one common motor is proposed for driving the rollers, which are rotationally motor-driven in the strap-advancing apparatus, the strap-retracting apparatus, and the tensioning apparatus.

IPC Classes  ?

• B65B 13/06 - Stationary ducts or channels
• B65B 13/22 - Means for controlling tension of binding means

Abstract

The invention relates to a strapping head or to a strapping apparatus of a strapping device for strapping packed goods by means of a strap, in particular by means of a plastic strap, which strapping head or strapping apparatus is provided with an advancing apparatus and tensioning apparatus having a plurality of wheels for transferring an advancing, retracting, and tensioning motion to the strap, wherein at least one of said wheels is or can be operatively connected to a driving apparatus in order to cause the at least one of the wheels to rotate about an axis of rotation for the advancing, retracting, and tensioning motion. The problem addressed by the invention is that of improving said strapping head or strapping apparatus to the effect that the strapping head can be made as compact as possible. This problem is solved in that, in total, at most three rollers are provided on the strapping head for contact with the strap during the performance of the advancing, retracting, and tensioning motion, which rollers come in contact with the strap in connection with these functions, wherein the at most three rollers can be brought in contact with the strap in pairs on both sides of the strap in different combinations with each other.

IPC Classes  ?

• B65B 13/22 - Means for controlling tension of binding means
• B65B 13/06 - Stationary ducts or channels

Abstract

The invention relates to a strapping arrangement (1) which is intended for strapping articles using a strapping band and has a tensioning device (6) for applying tensioning to a loop of a strapping band, wherein the tensioning device (6, 86) is provided with a tensioning wheel (7, 87) which can be driven in rotation about a tensioning axis and is provided for engaging in the strapping band, the tensioning device (6, 86) also has a tensioning plate (9, 89), wherein, during a tensioning operation carried out by the tensioning device, provision is made for a strapping-band portion with one or more layers to be located between the tensioning wheel (7, 87) and the tensioning plate (9, 89) and to be in contact both with the tensioning wheel (7, 87) and with the tensioning plate (9, 89), in addition the tensioning wheel and/or the tensioning plate are/is arranged on a rocker (8, 80), which can be pivoted by motor about a rocker axis (8a), in order for a pivoting movement of the rocker (8, 80) either to increase or to decrease a distance between the tensioning wheel (7, 87) and the tensioning plate, and have/has a connecting device in order to establish a permanent connection at two regions of the loop of the strapping band which are located one above the other. In order to create a high level of functional reliability for such a strapping arrangement (1), so that the envisaged tensioning can be applied reliably, and as far as possible without slippage, to the band, the invention proposes an operable actuating device of the strapping arrangement which is provided with a button/switch which allows a switching state of a gear mechanism of the strapping arrangement to be altered such that a drive movement of the drive device results either in the tensioning wheel rotating or in the rocker (8, 80) pivoting.

IPC Classes  ?

• B65B 13/02 - Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
• B65B 13/18 - Details of, or auxiliary devices used in, bundling machines
• B65B 13/32 - Securing ends of binding material by welding, soldering, or heat-sealingSecuring ends of binding material by applying adhesive

Abstract

The invention relates to a mobile strapping device (1) for strapping goods to be packed with a strapping tape (10), which strapping device has a tensioning apparatus (6) for applying a tape tension to a loop of a strapping tape, and a connecting apparatus, in particular a friction welding or vibration welding connecting apparatus (13), for producing a connection on the strapping tape (10) in two superposed regions of the strapping tape loop. The strapping device is provided with power supply means, wherein the power which is provided thereby, in particular electrical power, is provided as drive power for motorized drive movements of the strapping device (1), and has a housing (2) which has, in particular, a front housing region which is configured as a cover for the tensioning apparatus, and a rear housing region which is preferably provided for receiving the power store, and a handle (3) for holding the strapping device, which handle is arranged between the front and the rear housing regions. The aim of the invention is to improve the assembly and repair properties. In order to achieve this object, a module (29) is proposed which comprises the display and operating apparatus (43) and at least parts of the controller of the strapping device.

IPC Classes  ?

• B65B 13/02 - Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
• B65B 13/18 - Details of, or auxiliary devices used in, bundling machines
• B65B 13/32 - Securing ends of binding material by welding, soldering, or heat-sealingSecuring ends of binding material by applying adhesive
• B25F 5/00 - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
• B25F 5/02 - Construction of casings, bodies or handles

Abstract

The invention relates to a mobile strapping device (1) for wrapping material to be packed with a strap, the device comprising a tensioning unit (6) for applying a strap tension to a loop of a strap, and a welding unit (13) for producing a welded connection, particularly a friction welded or vibration welded connection on two superimposed regions of the strap loop. The device further comprises a rechargeable energy store for storing electrical energy, the electrical energy being used as driving energy for motor-powered driving movements of the strapping device (1), a housing (2) with a front housing region formed as a cover part for the tensioning unit (6) and a rear housing region preferably provided for receiving the energy store, and a handle (3), arranged between the front and the rear housing regions (36, 37), for holding the strapping device. In order to achieve improved ergonomic properties for such a strapping device, according to the invention, as viewed in relation to a plan view onto the strapping device (1) and in relation to a provided longitudinal direction of the course of the strap running through the strapping device (1), the profile of the handle is arranged to be nonparallel to the strap.

IPC Classes  ?

• B65B 13/02 - Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
• B65B 13/18 - Details of, or auxiliary devices used in, bundling machines
• B65B 13/32 - Securing ends of binding material by welding, soldering, or heat-sealingSecuring ends of binding material by applying adhesive
• B25F 5/00 - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
• B25F 5/02 - Construction of casings, bodies or handles

Abstract

The invention relates to a mobile strapping device (1) for wrapping material to be packed with a strap, the device comprising a tensioning unit (6) for applying a strap tension to a loop of a strap, and a closure unit for producing a welded closure, particularly a friction welded or vibration welded connection, on two superposed regions of the strap loop. The device also comprises an energy supply, particularly a rechargeable energy store for storing electrical energy, the electrical energy being used as driving energy for motor-powered driving movements of the strapping device (1), a housing (2) having a front housing region formed as a cover part for the tensioning unit (6) and a rear housing region preferably provided for receiving the energy store, and a handle (3), arranged between the front and the rear housing regions, for holding the strapping device. The object of the invention is to improve the ergonomic properties of said strapping device. To this end, a display means is provided, which is arranged on the rear housing region (37) of the housing (2) for the strapping device (1), in order to display operating information of the strapping device.

IPC Classes  ?

• B65B 13/02 - Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
• B65B 13/18 - Details of, or auxiliary devices used in, bundling machines
• B65B 13/32 - Securing ends of binding material by welding, soldering, or heat-sealingSecuring ends of binding material by applying adhesive
• B25F 5/00 - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for

Abstract

A mobile strapping device for strapping packaged goods with wrap-around strap comprises a tensioner (6) for applying a strap tension to a loop of a wrapping strap, and a friction welder (10) for producing a friction weld connection by way of a friction welding element at two areas of the loop of the wrapping strap disposed one on top of the other, and a chargeable energy storage means (15) for storing electrical energy that can be released as drive energy for motorized drive motions at least for the friction welder for producing a friction weld connection. In order for such a strapping device to have high functional reliability and ease of handling, despite the possibility of automated production of wrapped straps, at least to a large extent, it is proposed for the strapping device to comprise a planetary gear system (35, 37, 38) for transferring and changing the rotational speed of a drive motion provided by an electrical drive of the friction welder.

IPC Classes  ?

• B65B 13/02 - Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
• B65B 13/18 - Details of, or auxiliary devices used in, bundling machines
• B65B 13/32 - Securing ends of binding material by welding, soldering, or heat-sealingSecuring ends of binding material by applying adhesive

Abstract

A mobile strapping device (1) for strapping packaged goods with wrap-around strap, comprising a tensioner (6) for applying a strap tension to a loop of a wrapping strap, and a friction welder (10) for producing a friction weld connection in two areas of the loop of the wrapping strap disposed one on top of the other, and a chargeable energy storage means (15) for storing energy, in particular electrical, mechanical, elastic or potential energy, that can be released as drive energy at least for the friction welder for producing a friction weld connection, is intended to be improved upon with regard to the handling and operating properties thereof. To this end, it is proposed that the strapping device be provided with a common drive for the tensioner for producing a tensioning motion, and for the friction welder for producing an oscillating friction welding motion and for a transitioning device (19) for producing a transitioning motion of the friction welder from a rest position to a welding position.

IPC Classes  ?

• B65B 13/02 - Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
• B65B 13/18 - Details of, or auxiliary devices used in, bundling machines
• B65B 13/32 - Securing ends of binding material by welding, soldering, or heat-sealingSecuring ends of binding material by applying adhesive

Abstract

A strapping device (1), in particular a mobile strapping device, for strapping packaged goods with a wrap-around strap, comprising a tensioner (6) for applying a strap tension to a loop of a wrapping strap, said tensioner comprising a rotationally drivable tensioning wheel (7) and a tensioning rocker (8) that pivots relative to the tensioning wheel and cooperates with the tensioning wheel, wherein a tensioning plate (12) is disposed at the tensioning rocker for applying a wrapping strap, and a wherein a distance between the tensioning plate and the tensioning wheel can be varied for applying a tension on the strap, said tensioner also comprising a connector, in particular a welding connector (10) such as a friction welder, for producing a connection in two areas of the loop of the wrapping strap located one on top of the other, is intended to exhibit largely consistent tensioning characteristics even with different strap thicknesses. To this end, means are proposed for the strapping device that provide for the variability of the relative position of the tensioning plate relative to the tensioning wheel in addition to the pivotability of the tensioning rocker.

IPC Classes  ?

• B65B 13/02 - Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
• B65B 13/18 - Details of, or auxiliary devices used in, bundling machines

Abstract

A mobile strapping device (1) for strapping packaged goods with wrap-around strap, comprising a tensioner (S) for applying a strap tension to a loop of a wrapping strap, and a connector (10) for producing a connection in two areas of the loop of the wrapping strap disposed one on top of the other, and a chargeable energy storage means (15) for storing energy that can be released as drive energy for motorized drive motions at least for the friction welder for producing a friction welded connection and/or for the tensioner, is intended to have high functional reliability and ease of handling despite the possibility of automated production of wrapped straps, at least to a large extent. To this end, it is proposed that the energy storage means of the strapping device comprise a lithium ion battery for providing energy for driving a connector designed as a friction welder.

IPC Classes  ?

• B65B 13/02 - Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
• B65B 13/18 - Details of, or auxiliary devices used in, bundling machines
• B65B 13/32 - Securing ends of binding material by welding, soldering, or heat-sealingSecuring ends of binding material by applying adhesive

Abstract

A mobile strapping device (1) for strapping packaged goods with wrap-around strap, comprising a tensioner (6) for applying a strap tension to a loop of a wrapping strap, and a connector (10) for producing a connection in two areas of the loop of the wrapping strap disposed one on top of the other, and a chargeable energy storage means (15) for storing energy that can be released as drive energy for motorized drive motions at least for the connector and/or for the tensioner, is intended to have high functional reliability and ease of handling despite the possibility of automated production of wrapped straps, at least to a large extent. In order to accomplish this, it is proposed that the strapping device be provided with a brushless DC motor as a drive for the tensioner and/or the connector.

IPC Classes  ?

• B65B 13/02 - Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
• B65B 13/18 - Details of, or auxiliary devices used in, bundling machines
• B65B 13/32 - Securing ends of binding material by welding, soldering, or heat-sealingSecuring ends of binding material by applying adhesive