WO2008121887A1 - Ensemble de glissière de cerclage et procédé d'utilisation de celui-ci - Google Patents

Ensemble de glissière de cerclage et procédé d'utilisation de celui-ci Download PDF

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Publication number
WO2008121887A1
WO2008121887A1 PCT/US2008/058768 US2008058768W WO2008121887A1 WO 2008121887 A1 WO2008121887 A1 WO 2008121887A1 US 2008058768 W US2008058768 W US 2008058768W WO 2008121887 A1 WO2008121887 A1 WO 2008121887A1
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WO
WIPO (PCT)
Prior art keywords
strap
guide
guides
track assembly
path
Prior art date
Application number
PCT/US2008/058768
Other languages
English (en)
Inventor
Lyndon Lee Cozzutto
Original Assignee
Enterprises International, Inc.
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 Enterprises International, Inc. filed Critical Enterprises International, Inc.
Priority to CA002682085A priority Critical patent/CA2682085A1/fr
Priority to EP08744683A priority patent/EP2142432A1/fr
Publication of WO2008121887A1 publication Critical patent/WO2008121887A1/fr

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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
    • B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
    • B65B13/04—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes with means for guiding the binding material around the articles prior to severing from supply
    • B65B13/06—Stationary ducts or channels

Definitions

  • the present invention relates to strapping apparatuses and methods for applying straps around bundles of objects. More particularly, the invention relates to strapping track assemblies for strapping apparatuses and methods of using the same.
  • a conveyor often conveys a bundle of objects to a strapping station where straps are automatically applied before the conveyor moves the strapped bundle away from the strapping station.
  • FIG. 1 is a front isometric view of a conventional strapping machine 10.
  • the strapping machine 10 has several major assemblies, including a feed and tension assembly 15, an accumulator 14, a strap dispenser 30, a sealing assembly 40, a track assembly 50, and a control system 60 having an operator interface region 65.
  • the strapping machine 10 may also include a frame 70 that structurally supports and/or encloses the major subassemblies.
  • the assembly and purposes of the conventional major assemblies are described in detail in U.S. Patent No. 6,363,689.
  • a strap is moved through the track assembly 50 in the direction indicated by the arrows 20 before applying the strap to the bundle.
  • the track assembly 50 includes features, such as exposed edges of strap guides, which interfere with the advancement of the strap.
  • an end of the strap can catch on any one of the exposed leading edges of the strap guides during a feed sequence. This may cause the strap to become damaged or stuck and may require user intervention to continue the feed sequence. Misfeeds occur when the end of the strap unintentionally passes through gaps along the track assembly 50.
  • the section of the strap that escapes from the track assembly 50 is snaked back into the track assembly 50 so that the strap can be further advanced through the track assembly 50.
  • the strap can be drawn from the track assembly 50 about the bundle adjacent to the sealing assembly 40.
  • Apparatuses disclosed herein can be used to apply one or more straps around a bundle of objects.
  • a variable or constant force can be applied to tension the strap about the bundle of objects while the strap is sealed around the bundle of objects.
  • the apparatus may include a strapping track assembly extending about a strapping station.
  • the track assembly is adapted to receive a strap during a feed sequence and to release the strap during a tensioning sequence.
  • the track assembly in some embodiments, is adapted to reduce or prevent the occurrence of misfeeds, such as misfeeds attributable to the end of the strap escaping through gaps next to an intended strap path within the track assembly. This ensures that the strap is properly routed through the track assembly.
  • a strapping apparatus for bundling objects comprises a strapping station and a track assembly.
  • the track assembly is adapted to receive a strap and to bundle objects at a strapping station using the strap.
  • the track assembly in some embodiments, comprises a stationary frame, a first strap guide, a second strap guide, and a corner strap guide interposed between the first and second strap guides.
  • the stationary frame can keep its configuration during operation.
  • the first and second strap guides can be linear strap guides that extend along a substantially straight axis.
  • a strap path may be defined between the first strap guide and the frame, the second guide and the frame, and the corner strap guide and the frame.
  • the strap path can have a generally rectangular shape, elliptical shape, or any other suitable shape.
  • the strap path is a closed loop path.
  • the corner strap guide can include a leading end and a trailing end.
  • a trailing end of the first strap guide can be positioned between the leading end of the corner strap guide and a first adjacent section of the strap path.
  • the trailing end of the corner strap guide can be between a leading end of the second strap guide and a second adjacent section of the strap path.
  • the strap guides can be received by one another.
  • the trailing end of the first strap guide extends into the corner strap guide.
  • the trailing end of the corner strap guide extends into the second strap guide. The trailing ends may keep the strap away from the leading edges of the downstream strap guides.
  • At least one of the first strap guide, the second strap guide, and the corner strap guide tapers inwardly (e.g., towards the strap path) in the downstream direction.
  • the tapered strap guides can position (e.g., center) the strap with respect to downstream strap guides.
  • Biasing mechanisms can move the strap guides from open positions to closed positions.
  • a plurality of biasing mechanisms can cooperate to push the strap guides against the frame.
  • the biasing mechanisms can include one or more springs that cooperate to apply desired forces to the strap guides. If sufficient forces are applied to the strap, the biasing mechanisms can allow the strap guides to open.
  • a track assembly for receiving a strap and bundling objects at a strapping station using the strap is provided.
  • the track assembly comprises an outer frame and a plurality of strap guides.
  • the plurality of strap guides is coupled to the outer frame so as to define a strap path.
  • the strap guides are mounted to the inner periphery of the frame.
  • the strap path in some embodiments, can extend along the length of the track assembly.
  • Each strap guide has a trailing end that is disposed between the strap path and a leading edge of one of the downstream strap guides.
  • the plurality of strap guides can include a first corner strap guide that defines a first curved section of the strap path, a second corner strap guide that defines a second curved section of the strap path, and an elongate strap guide (e.g., a linear strap guide or an array of linear strap guides) extending between the first and second corner strap guides.
  • the elongate strap guide can define a substantially linear section of the strap path. If the outer frame has a substantially rectangular shape, the elongate strap guide can extend along one side of the frame. In some embodiments, the elongate strap guide is a longitudinally-extending, U-shaped member.
  • At least one of the strap guides can taper inwardly towards the strap path. In some embodiments, all or most of the strap guides taper inwardly towards the strap path in the downstream direction. Each of the strap guides can extend partially through an adjacent pair of the strap guides.
  • the strap guides may include respective strap retainers.
  • the strap retainers together may extend along nearly all of the longitudinal length of the strap path such that a strap moving along the strap path is captured between the strap retainers and the outer frame.
  • the strap retainers can cooperate to define a substantially continuous surface along substantially the entire strap path, if needed or desired.
  • a strap guide can have a narrowed leading end with respect to a strap path and a widened trailing end with respect to the strap path.
  • a distance between opposing sides at the leading end can be less than a distance between the opposing sides at the trailing end.
  • a method for passing a strap through a track assembly comprises moving an end of a strap along a strap path.
  • the path is positioned between a plurality of interconnected strap guides and an outer frame.
  • each strap guide has a trailing end that is disposed between the strap path and a leading edge of one of the downstream strap guides such that the end of the strap is spaced from the leading end of the downstream strap guide.
  • the strap guides are interleaved and surround the inner periphery of the frame.
  • the end of the strap is passed out of downstream ends of the strap guides disposed within corresponding downstream strap guides.
  • the strap is subsequently used to bundle objects located at a strapping station after moving the end of the strap through the track assembly.
  • the strap can be tensioned to move the strap guides from a first position (e.g., a closed position) for retaining the strap to a second position (e.g., an open position, spread apart configuration, etc.) to allow removal of the strap.
  • Figure 1 is an isometric view of a conventional strapping machine.
  • FIG. 2 is a front, top view of a strapping apparatus, in accordance with one embodiment.
  • Figure 3 is a front, top view of a strapping track assembly, in accordance with one embodiment.
  • Figure 4 is a front, top view of a strapping track assembly with guard panels shown removed, in accordance with one embodiment.
  • Figure 5 is an isometric view of a portion of the strapping track assembly of Figure 4, in accordance with one embodiment.
  • Figure 6A is an enlarged pictorial view of a portion of a strapping track assembly, in accordance with one embodiment.
  • Figure 6B is a side elevational view of the interface between two guide members, in accordance with one embodiment.
  • Figure 7 is a cross-sectional view of the strapping track assembly of Figure 5 taken along line 7-7.
  • Figure 8 is a pictorial view of a strap guide member, in accordance with one embodiment.
  • Figure 9 is a front elevational view of the strap guide member of Figure 8.
  • Figure 10 is a back elevational view of the strap guide member of Figure 8.
  • Figure 11 is a top plan view of the strap guide member of Figure 8.
  • Figures 12 and 13 are side elevational views of the strap guide member of Figure 8.
  • Figures 14 and 15 are pictorial views of a strap guide member of a corner strap guide, in accordance with one embodiment.
  • Figure 16 is a front elevational view of a strap guide member of a corner strap guide, in accordance with one embodiment.
  • Figure 17 is a side elevational view of a strap guide member of a corner strap guide, in accordance with one embodiment.
  • Figure 18 is an isometric view of a frame of a strapping track assembly, in accordance with one embodiment.
  • Figure 19 is a front elevational view of the frame of Figure 18.
  • Figure 20 is a front elevational view of a control system, in accordance with one embodiment.
  • Figure 21 is a side view of operator controls of the control system of Figure 20.
  • the present disclosure is directed to, among other things, strapping apparatuses, components and subassemblies of strapping apparatuses (e.g., strapping track assemblies), and methods for strapping bundles of objects. Specific details of certain embodiments are set forth in the following description, and in Figures 2-21 , to provide a thorough understanding of such embodiments. A person of ordinary skill in the art, however, will understand that the disclosed embodiments may have additional components and features, and that the embodiments may be practiced without several of the details described in the following description.
  • the strap material is shown and referred to as a particular type of material, namely, a flat, two-sided, tape-shaped strip of material solely for the purpose of simplifying the description of various embodiments. It should be understood, however, that several of the methods and embodiments disclosed herein may be equally applicable to various types of strap material, and not just to the flat, two-sided, tape-shaped material shown in the figures.
  • the terms "strap” and “strap material” should be understood to include, without limitation, all types of materials used to bundle objects, for example, synthetic materials, natural materials, metallic materials, or some other more rigid strap material.
  • One type of strap that may be used with all or some of the embodiments described herein is a paper cord-type strap comprised of individual round cords laterally bonded together to form a continuous strap.
  • the strap may be rigid, semi-flexible, or flexible depending on the application.
  • FIG. 2 illustrates a strapping apparatus 100 that includes a plurality of conveyors 110 for moving bundles into and out of a strapping station 120, which is surrounded by a strapping track assembly 118.
  • Various types of strapping stations can be employed based on the dimensions of the bundles to be strapped.
  • Different types of components e.g., tensioning units, sealing head assemblies, etc.
  • Strap employed during bundling operations is fed about the strapping track assembly 118 in a strap-feed direction 119, illustrated in the counter-clockwise direction, along a strap path (e.g., a substantially rectangular or elliptical strap path) within the strapping track assembly 118.
  • a frame 139 for supporting the strapping apparatus 100 can be temporary or permanently affixed to the floor.
  • the independently powered conveyors 110 are independently supported by conveyor frames 145.
  • Some of the other major assemblies of the strapping apparatus 100 include, without limitation, a control system for programming and controlling various functions of the apparatus, an accumulator 96, and a feed and tension unit for receiving and feeding the strap around one or more bundles on the conveyors 110.
  • the strapping apparatus 100 can be further configured with a sealing head assembly 98 for sealing the strap around the bundle (not shown).
  • At least some of the major assemblies can be of modular construction, which allows them to be used in multiple frame configurations or attached as add-on components to existing strapping machines.
  • the illustrated strapping track assembly 118 has a modular construction for use with a wide range of strapping machines. Various assemblies and components of the strapping apparatus 100 are discussed in detail below.
  • FIG 3 shows the strapping track assembly 118 partially enclosed by spaced apart guard panels 140a, 140b (collectively 140) and opposing spaced apart guard panels 142a, 142b (collectively 142).
  • Each of the guard panels 140, 142 has cutouts 150, 152 that provide access to components of the strapping track assembly 118.
  • the guard panels 140, 142 can be easily removed to perform maintenance on the track assembly 118.
  • a handle 153 may be used to move the entire strapping apparatus 100, the track assembly 118 with respect to the frame 139, and the like
  • the strapping track assembly 118 may provide the reliability of a fully enclosed track configuration while reducing, limiting, or substantially eliminating problems associated with misfeeds, straps catching on edges (e.g., leading edges) of strap guides, and the like.
  • the illustrated strapping track assembly 118 includes five linear track sections 201 a-e (collectively 201 ) and four corner sections 202a-d (collectively 202). Each of the corner sections 202 is interposed between one pair of the linear track sections 201 and can be similar to one another.
  • a plurality of strap guides 220a-e, 222a-d is coupled to a rigid frame 240 to define a strap path of travel.
  • the strap guides 220a-e are elongate strap guides (illustrated as substantially linear guides) at corresponding track sections 201 a-e, and the strap guides 222a-d (collectively 222) are corner strap guides at corresponding corner sections 202a-d.
  • the strap guides 220, 222 are interleaved in the feed direction such that the leading edges of the strap guides 220, 222 do not contact the strap so as to reduce, limit, or substantially eliminate the occurrence of misfeeds, damage to the strap attributable to the leading edges, and the like.
  • Each of the strap guides 220, 222 can have a trailing end (e.g., a downstream end) that keeps the strap from contacting a leading end (e.g., an upstream end) of one of the adjacent downstream strap guides, as discussed in detail below.
  • a trailing end e.g., a downstream end
  • a leading end e.g., an upstream end
  • the corner strap guide 222d is interposed between the strap guides 22Od, 22Oe.
  • a central section 225 of the comer strap guide 222d extends from the upstream strap guide 22Od to the downstream strap guide 22Oe.
  • a substantial portion of the corner strap guide 222d extends between the adjacent strap guides 22Od, 22Oe.
  • the corner strap guide 222d includes a leading end 260 for surrounding the upstream strap guide 22Od and a trailing end 262 for extending into the downstream strap guide 22Oe.
  • a trailing end 270 of the upstream strap guide 22Od is between the leading end 260 of the strap guide 222d and a strap path (discussed in connection with Figures 6A, 6B, and 7), and the trailing end 262 of the corner guide 222d is between a leading end 272 of the downstream strap guide 22Oe and the strap path.
  • the trailing ends 270, 262 thus physically separate and protect the strap from the respective leading edges 261 , 273. This ensures that the edges 261 , 273 do not cause misfeeds.
  • Each of the strap guides 22Od, 22Oe, 222d can taper with respect to the strap path, for example, in the downstream direction.
  • the narrowed trailing end 270 of the strap guide 22Od extends into the widened leading end 260 of the corner strap guide 222d
  • the narrowed trailing end 262 of the corner strap guide 222d extends into the widened leading end 272 of the strap guide 22Oe.
  • the narrowed trailing ends 270, 262 can closely surround and help center the strap with respect to the downstream strap guides 222d, 22Oe, respectively.
  • a transverse width W of the leading end 260 is greater than a length L of the portion of the trailing end 270 within the strap guide 222d.
  • the length L can be measured in the direction of a strap path 302 aligned with a longitudinal gap 303 extending along the inner periphery of the track assembly 118.
  • the leading end 260 can closely surround the trailing end 270 while allowing slight relative movement between the strap guides 22Od, 222d.
  • the length L of the portion of the leading end 270 within the strap guide 222d can be selected based on, for example, the desired amount of guide overlap, flexibility of the strap, and ease of assembly.
  • the end of the strap can move along the strap path 302 past the intersection of the strap guides 22Od, 222d (see Figure 6B) without the strap end passing through any gaps between the strap guides 22Od, 222d. In this manner, strap misfeeds can be avoided.
  • a strap guide can include, but is not limited to, one or more components adapted to engage and guide a strap along a desired strap path.
  • a strap may slide smoothly between strap guides positioned along a strap path without damaging the strap.
  • a strap guide can be a monolithically formed one-piece component.
  • a strap guide can include a plurality of separate components.
  • the strap guide 22Oe of Figures 6A, 6B, and 7 includes a pair of spaced apart strap guide members 236a, 236b movable between a closed position 237 and an open position 238 (shown in phantom).
  • Each of the strap guide members 236a, 236b includes a respective sidewall 239a, 239b and a respective strap retainer 243a, 243b.
  • the illustrated sidewall 239a is approximately parallel to the sidewall 239b when the strap guide 22Oe is closed.
  • Figures 8-13 show the strap guide member 236a that includes the retainer 243a extending substantially perpendicularly from the sidewall 239a.
  • the retainer 243a includes a lower engagement surface 247 for slidably contacting the strap.
  • the sidewall 239a includes a plurality of openings 250 ( Figure 8) through which elongate rods 251 ( Figure 5) or biasing mechanisms 203a, 203b can extend.
  • the openings 250 can be holes, slots, and the like.
  • a strap guide member 238a of the strap guide 222d includes a sidewall 273 and an arcuate strap retainer 277.
  • the strap retainer 277 includes an engagement surface 279 for slidably contacting the strap. Because the strap guide 22Od is substantially perpendicular to the strap guide 22Oe (see Figure 4), the strap retainer 277 subtends an angle of about 90 degrees such that the tensioned strap can curve along the strap retainer 277 between the strap guides 22Od, 22Oe. Other configurations and curvatures of the strap retainer 277 are also possible.
  • biasing mechanisms 203a, 203b can bias the strap guide members 236a, 236b to the illustrated closed position.
  • the biasing mechanisms 203a, 203b can be generally similar to each other.
  • the biasing mechanism 203a includes a spring retainer 241 and a biasing member 239 captured between the spring retainer 241 and the guide member 236a.
  • the spring retainer 241 can be a free floating cap screw extending outwardly from both sides of the track assembly 118.
  • the biasing members 239 can be interposed between the guide members 236a, 236b and the caps of the spring retainer 241.
  • the retainer 241 is a floating cap screw and an associated hex nut are centered about the track 118 by two compression biasing members 239 in the form of compression springs applying somewhat equal forces. This has the effect of providing an equal load on both sides of the strap as the strap is pulled from the track assembly 118.
  • the stop 241 is fixedly coupled to the frame 240 such that the biasing member 239 presses the strap guide member 236a against the frame 240.
  • the biasing member 239 can be in the form of one or more springs (e.g., helical springs, coil springs, etc.), elastically compressible members, and the like. Other types of biasing members can also be used.
  • the biasing mechanisms 203a, 203b may hold the strap guide 22Oe proximate to or against the outer frame 240 so as to form a partially or fully enclosed channel 300.
  • the strap path 302 (shown in phantom line in Figures 6A and 7) extends longitudinally along the open channel 300.
  • a strap 304 shown in phantom line in Figure 7, can move along the strap path 302 through the track assembly 100.
  • the edges of the strap 304 can slide along the strap retainers 243a, 234b.
  • the strap path 302 can be defined, at least in part, by the strap guides 220, 222 and the frame 240, as well as other components suitable for contacting the strap.
  • the strap retainers 243a, 243b are spaced from an engagement surface 283 of the frame 240.
  • the strap 304 can be captured between lower surfaces of the strap retainers 243a, 243b and the surface 283.
  • the illustrated strap 304 is spaced from the engagement surface 283.
  • Each of the plurality of strap guides 220, 222 can include one or more strap retainers that extend along nearly all of their respective lengths.
  • the strap retainers can extend along nearly all, or all, of the length of the strap path 302.
  • the strap retainers collectively extend along at least 95%, 90%, or 80% of the length of the strap path 302 defined by the strapping strap assemble 118. Such embodiments ensure that the strap is properly guided along a substantial portion of the strap path 302.
  • the frame 240 includes a plurality interlocked elongate frame sections 301 a-e (collectively 301 ) and corner frame sections 302a-d (collectively 302).
  • the assembled track sections 201 are formed by the respective frame sections 301 and strap guides 220 movable with respect to the frame sections 301.
  • the corner track sections 202 are formed by the respective corner frame sections 302 and the strap guides 222 movable with respect to the corner frame sections 302.
  • the frame 240 can have a one- piece construction. Such embodiments may be more rigid than the multi-piece frame 240 illustrated in Figures 18 and 19.
  • a sealing head assembly 98 grips the free end of the strap and a feed/tension unit begins to tension the strap around the product surrounded by the strapping track assembly 118.
  • the forces may overcome the bias of the biasing mechanisms 203a, b to cause the closed strap guides 220, 222 to move (e.g., pivot) to the open positions, thereby allowing the strap to escape from the separated strap guides 220, 222.
  • the track sections 220, 222 open each successive set of strap guides 220, 222 are urged open by the previous set of strap guides, thereby providing a controlled release of the strap.
  • the amount of overlap between the strap guides 220, 222 can be selected such that the strap guides open together.
  • the interleaved track design also has the advantage of having few or no gaps between strap guides to catch the strap edges and to reduce the occurrence of the strap escaping from the track assembly 118.
  • the strapping apparatus 100 can be controlled by a control system 800 illustrated in Figure 20.
  • the control system 800 can be mounted or incorporated into the accumulator 96 and may include a programmable logic controller (PLC) 802 which operates in conjunction with various input and output devices and controls the major subassemblies of the strapping apparatus 100.
  • Input devices may include, for example, momentary and maintained push buttons, selector switches, toggle switches, limit switches, photoelectric sensors, and inductive proximity sensors.
  • Output devices may include, for example, solid state and general purpose relays, solenoids, and indicator lights. Input devices are scanned by the controller 802, and their on/off states are updated in a controller program. The controller 802 executes the controller program and updates the status of the output devices accordingly.
  • the programmable controller 802 and its associated input and output devices may be powered using a 24 VDC power supply.
  • the controller 802, power supply, relays, and fuses may be contained within a control panel, as illustrated in Figure 21.
  • the momentary and maintained push buttons, selector switches, and toggle switches 810 may be located on the control panel.
  • the limit switches, inductive proximity sensors, photoelectric sensors, and solenoids are typically located within the strapping apparatus 100 at their point of use.
  • An indicator light stack may be mounted on the top of the arch indicating a strap mis-feed, out-of-strap, normal running or machine malfunction condition, for example.
  • PLC 802 suitable for use with the strapping apparatus 100 is the MICROLOGIX 1500 manufactured by Allen- Bradley/Rockwell. This device includes PNP digital and relay type outputs. In addition the PLC utilizes input and output cards to interface to external production line equipment control system and to four machine mounted motors (e.g., Dunkermotoren BG75 servomotors) which drive the accumulator 96, feed and primary tension, secondary tension and sealing head functions.
  • machine mounted motors e.g., Dunkermotoren BG75 servomotors
  • Another industry standard PLC may also be used in place of the PLC described above.
  • the MICROLOGIX 1500 PLC 802 has communication ports, including an RS232C port for program uploads, downloads and monitoring and a RS232C port for connection to an EZ-AUTOMATION HMI (Human-Machine-Interface) 812 mounted to the control panel side.
  • the HMI provides machine diagnostics and operational data (e.g., number of straps applied, sensor status, etc.) in addition to providing operational parameter selections (e.g., strap position on the bundle, number of straps per bundle, etc.).
  • the operation of the strapping apparatus 100 may involves pulling strap from a dispenser and feeding a free end of the strap through the accumulator 96, through the feed and tension unit, up through the sealing head assembly 98, and then around the strapping track assembly 118.
  • U.S. Application No. 12/072,107 discloses these components and their functionality. Because the track assembly 118 is adapted to minimize or limit the occurrence of misfeeds and/or damage to the end of the strap due to unwanted large gaps between strap guides, strap can be consistently fed through the track assembly 118. After the strap is fed around the strapping track assembly 118, the free end is guided back into the sealing head assembly 98. At this point, the strap is in position to start a strapping cycle where the strap can be tensioned and secured about a bundle of objects.
  • the tensioning of the strap occurs in two stages, a primary tension stage and a secondary tension stage.
  • the primary tensioning stage the strap is pulled out of the track assembly 118 and, in some processes, down onto the bundle of objects.
  • the secondary tensioning sequence involves binding the strap tightly around the bundle of objects located in the strapping station 120.
  • a controller permits a predetermined amount of time to pass so as to allow the sealing head assembly 98 to rotate to grip the strap.
  • the tension is released just prior to cutting the strap from the supply to prevent the strap from fraying.
  • the strap is then cut and sealed. Once the sealing operation is complete, the feeding sequence may then be repeated.
  • the primary tensioning sequence provides enough force on the strap to pull the strap inwardly away from the frame 240 and through the longitudinal openings 303 provided by the strap guides 220, 222.
  • the straight and corner track guides 220, 222 can be opened by the strap 102, allowing the strap to pull clear of the channel 300.
  • the force applied to the strap can overcome the biasing of the biasing mechanisms for convenient opening of the strap guides 220, 222.
  • the strapping track assembly 118 may be configured to permit controlled sequential strap removal from the strap guides 220, 222, thereby reducing, limiting, or substantially eliminating damage to the strap.
  • the strap is pulled around a bundle of objects and both the straight and corner track guides 220, 222 close because of the biasing mechanisms. Once the strap has been sufficiently tensioned around the bundle of objects, the non-free end of the strap can be cut and then both ends of the strap can be sealed together.
  • the sealing operation commences when several sealing head cams in the sealing head assembly 98 begin to rotate, forcing a gripper to pinch the free end of the strap against an anvil.
  • the strapping apparatus 100 can be configured, depending on strap orientation, to accommodate the same gripper on the opposite side.
  • the feed and tension unit retracts the excess strap from the track assembly 118 (i.e., the tensioning operation discussed above).
  • the strap used to bundle objects can have a heat- activated adhesive applied thereon.
  • the adhesive on the strap is applied to the strap during the manufacturing process of the strap. Heat is applied to the strap by inserting a heater blade between the two overlapping ends of the strap and lightly pressing the ends against the blade by raising a press platen. Various types of further processing can be performed on the strap to ensure that strap is properly secured. At this point, the strapping track assembly 118 is ready for the strap to be fed again.
  • the embodiments, features, systems, devices, materials, methods and techniques described herein may, in some embodiments, be similar to any one or more of the embodiments, features, systems, devices, materials, straps, methods and techniques described in U.S. Patent Publication No. 2004/0200191 , U.S. Patent Application No. 12/072,107, and U.S. Provisional Patent Application No. 60/921 ,022.
  • the embodiments, features, systems, devices, materials, methods and techniques described herein may, in certain embodiments, be applied to or used in connection with any one or more of the embodiments, features, systems, devices, materials, methods and techniques disclosed in the above-mentioned U.S. Patent Publication No. 2004/0200191 and U.S.

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  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)

Abstract

La présente invention concerne un appareil et un procédé pour appliquer des bandes de cerclage autour d'un faisceau d'objets. L'appareil comprend un ensemble de glissière (118) s'étendant sensiblement autour d'un poste de cerclage (120). L'ensemble de glissière (118) est adapté pour recevoir une bande de cerclage et pour libérer la bande de cerclage pendant une opération de mise en tension. La bande de cerclage peut être délivrée à travers l'ensemble de glissière (118) sans endommager la bande de cerclage.
PCT/US2008/058768 2007-03-30 2008-03-28 Ensemble de glissière de cerclage et procédé d'utilisation de celui-ci WO2008121887A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002682085A CA2682085A1 (fr) 2007-03-30 2008-03-28 Ensemble de glissiere de cerclage et procede d'utilisation de celui-ci
EP08744683A EP2142432A1 (fr) 2007-03-30 2008-03-28 Ensemble de glissière de cerclage et procédé d'utilisation de celui-ci

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US92102207P 2007-03-30 2007-03-30
US60/921,022 2007-03-30

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WO2008121887A1 true WO2008121887A1 (fr) 2008-10-09

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PCT/US2008/058768 WO2008121887A1 (fr) 2007-03-30 2008-03-28 Ensemble de glissière de cerclage et procédé d'utilisation de celui-ci

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US (1) US20080236409A1 (fr)
EP (1) EP2142432A1 (fr)
CA (1) CA2682085A1 (fr)
RU (1) RU2009140039A (fr)
WO (1) WO2008121887A1 (fr)

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DE102014103334A1 (de) * 2014-03-12 2015-09-17 Mosca Gmbh Verfahren zur Steuerung der Parameter eines Umreifungssystems
DE102020105350B3 (de) * 2020-02-28 2021-01-14 Signode Industrial Group Llc Bandkanal mit schuppenartigen Klappen
USD983245S1 (en) * 2021-09-24 2023-04-11 Dongguan Jingduan Packaging Technology Co. Ltd Pallet strapping machine
CN114955038A (zh) * 2022-07-12 2022-08-30 深圳市和力泰科技集团有限公司 柔性片状产品全自动包装设备

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EP0819004A1 (fr) 1995-04-04 1998-01-21 Merck & Co., Inc. Composition pharmaceutique contenant des inhibiteurs de pompe a protons
JP2000109012A (ja) 1998-09-30 2000-04-18 Nichiro Kogyo Co Ltd アーチ型梱包機のバンドガイド
US6073425A (en) 1999-05-24 2000-06-13 Tekpak Corporation Guide frame of lashing tape of binding machine
US6363689B1 (en) 2000-01-26 2002-04-02 Sandar Industries, Inc Banding machine
US20020116900A1 (en) 2001-02-15 2002-08-29 Cranston Diversified Industries Apparatus and method for securing a bundle with a strap

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US3768396A (en) 1970-08-17 1973-10-30 Interlake Inc Strap track for strapping machine
GB2078659A (en) 1980-06-30 1982-01-13 Hoesch Estel Werke Ag Band straightening device for strapping apparatus
GB2267075A (en) 1992-05-19 1993-11-24 Strapex Holding Ag Guide for binding material
US5414980A (en) 1992-11-05 1995-05-16 Strapack Corporation Packing apparatus
US5560180A (en) 1994-08-05 1996-10-01 Sandar Industries, Inc. Method and apparatus for tying bundles with a paper pulp strap
EP0819004A1 (fr) 1995-04-04 1998-01-21 Merck & Co., Inc. Composition pharmaceutique contenant des inhibiteurs de pompe a protons
JPH09267807A (ja) 1996-03-29 1997-10-14 Nippon Steel Weld Prod & Eng Co Ltd ペールパックの自動結束方法とその自動結束機
EP0819604A1 (fr) * 1996-07-19 1998-01-21 SMB SCHWEDE MASCHINENBAU GmbH Châssis de guidage de bande pour une machine de cerclage
JP2000109012A (ja) 1998-09-30 2000-04-18 Nichiro Kogyo Co Ltd アーチ型梱包機のバンドガイド
US6073425A (en) 1999-05-24 2000-06-13 Tekpak Corporation Guide frame of lashing tape of binding machine
US6363689B1 (en) 2000-01-26 2002-04-02 Sandar Industries, Inc Banding machine
US20020116900A1 (en) 2001-02-15 2002-08-29 Cranston Diversified Industries Apparatus and method for securing a bundle with a strap

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EP2142432A1 (fr) 2010-01-13
US20080236409A1 (en) 2008-10-02
CA2682085A1 (fr) 2008-10-09
RU2009140039A (ru) 2011-05-10

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