EP1283798A1 - Device for tightening and sealing plastic packaging straps - Google Patents
Device for tightening and sealing plastic packaging strapsInfo
- Publication number
- EP1283798A1 EP1283798A1 EP01951457A EP01951457A EP1283798A1 EP 1283798 A1 EP1283798 A1 EP 1283798A1 EP 01951457 A EP01951457 A EP 01951457A EP 01951457 A EP01951457 A EP 01951457A EP 1283798 A1 EP1283798 A1 EP 1283798A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- profile grooves
- circumferential
- tensioning
- tightening
- tensioning wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- 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
- B65B13/185—Details of 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
- B65B13/24—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 device for tensioning and closing plastic strapping for packages or the like.
- a in the housing extending in the longitudinal direction of the strapping in the housing, open on one side and the mutually bracing strap ends of the strapping receiving the channel, the one side is delimited by a clamping plate and on the other side by a clamping wheel provided with a profiling, the clamping wheel and the clamping plate being adjustable relative to one another.
- Devices of this type serve to clamp the strap ends of plastic straps placed around packages against each other and to connect them firmly by means of a closing device, so that the packages are then securely strapped.
- the strap ends of the plastic strapping are inserted into the strap channel that is open on one side so that they lie one above the other.
- the tensioning wheel and tensioning plate are adjusted relative to one another, so that one end of the strap lies firmly against the tensioning plate and the other end of the strap against the tensioning wheel, which is then rotated by hand or by motor and stretches the adjacent strap end relative to the strap end held firmly by the tensioning plate ,
- the tape ends are firmly connected to one another by means of a friction welding device or other closure devices.
- the circumferential and / or transverse profile grooves thus form between them approximately pyramid-shaped, pointed clamping teeth, which can easily penetrate into the end of the band to be tensioned even with a low pressure force and can thus be gripped and tensioned in a practically positive manner.
- the transfer forces which are large even with a low pressure force between the tensioning wheel and the tensioning plate, enable the strap ends to be firmly clamped against one another without the tensioning wheel turning on the corresponding strap end, so that no plastic material is removed from the strap end that was previously known Devices softened as a result of the frictional heat occurring when the tensioning wheel slipped on the end of the belt and settled into the profiling, from which it could only be removed with great difficulty after cooling and hardening.
- the transverse profile grooves preferably have a groove depth that is smaller than the thickness of the thinnest strapping to be processed.
- the tip angle of the clamping teeth enclosed by the groove walls of the profile grooves is less than 60 °, in particular between 35 and 45 °, because with such a small tip angle, complete penetration of the clamping teeth into the band is very small Contact pressure reached.
- the groove depth of the circumferential profile grooves is preferably 1.5 to 3 times the groove depth of the transverse profile grooves.
- the groove depth of the transverse profile grooves can be, for example, between 0.2 and 0.4 mm and the groove depth of the circumferential profile grooves between 0.6 and 1 mm.
- tensioning plate also extends in the longitudinal direction of the band channel ⁇ p.
- P- P- 0 ⁇ 0 P- P- 0 P- 0 0 • u 0 ⁇ 0 ⁇ ⁇ • ⁇ 0 J ⁇ O T3 0 P- P- 0
- the cleaning device can be set against the tensioning wheel under the action of a pressure spring and thus permanently clean it; however, it is also possible to operate the cleaning device only when required or at regular intervals.
- a particularly advantageous embodiment results when the cleaning block is approximately wedge-shaped and rests with a free wedge edge on the tensioning wheel, as a result of which the unhindered removal of the dirt particles removed from the grooves is reliably ensured.
- the cleaning block consists of a soft metal, in particular a brass alloy, which leads to a self-sharpening effect when the cleaning block is pressed against the tensioning wheel.
- the cleaning teeth encircling the circumferential profile grooves are thereby optimally adapted to their shape and safely scrape out the profile grooves completely.
- FIG. 2 shows a section through the tensioning wheel and the tensioning plate of the device shown in FIG. 1 in the region of the strap channel when the strap is not inserted;
- FIG. 3 shows the object of FIG. 2 with the strapping inserted
- FIG. 4 shows a detail of the tensioning wheel in the area of the cleaning block interacting with it in an enlarged section IV according to FIG. 1.
- the device 10 shown in Fig. 1, the housing 11 is indicated by dash-dotted lines for reasons of clarity, is used for tensioning and closing a plastic strapping 12 or the like about a package 13. should be placed.
- the device 10 has a strap channel 14 which extends in the longitudinal direction of the strapping strap 12 in the housing and is open on one side, which is delimited on its underside 15 by a tensioning plate 16 and on its top 17 by a tensioning wheel 18 and in which the two strap ends 19, 20 of the strapping 12 are inserted from the open long side, as is known per se.
- the tensioning wheel 18 can be adjusted from above with an eccentric drive 21 against the fixed tensioning plate 16 in an unspecified manner, so that the two strap ends 19, 20 are clamped between the tensioning plate 16 and tensioning wheel 18, whereupon the Drive 22 for the tensioning wheel is actuated, which then pulls the upper band end 19 backwards into the device 10, to the right in the drawing, while the lower one Band end 20 is held in its position by the clamping plate 16.
- the friction welding device 23 arranged in the longitudinal direction of the strapping band behind the tensioning wheel is actuated, which in a known manner rubs the upper band end 19 transversely to the longitudinal direction of the band at high speed over the lower band end and thus a firm weld connection of the two Band ends generated.
- the tensioning wheel 18 is provided on its periphery 24 with a profile 25, the design of which can be seen in FIGS. 2 to 4.
- the profile 25 consists of first transverse profile grooves 27 running in the axial direction 26 of the tensioning wheel 18 and second circumferential profile grooves 29 running at right angles to this in the circumferential direction 28 and having a greater groove depth T than the transverse profile grooves.
- the groove depth T of the circumferential profile grooves is approximately 0.7 mm, while the groove depth t of the transverse profile grooves is only 0.3 mm.
- circumferential profile grooves have an approximately V-shaped cross-sectional shape and are close to each other, while the transverse profile grooves are trapezoidal in section.
- the circumferential and transverse profile grooves 27, 29 located next to or behind one another form between them approximately pyramid-shaped, pointed clamping teeth 30, the tip angle ⁇ of which is enclosed by the groove walls 31 of the profile grooves 27, 29 is approximately 40 °.
- the clamping teeth 30 press slightly into the upper band end 19 down to the depth t of the transverse profile grooves 27 and thus ensure a practically positive connection between the profiling 25 even with a small pressing force of the tensioning wheel and the upper end of the band.
- the maximum depth of penetration which is determined by the groove depth t of the transverse profile grooves, ensures that the clamping teeth 30 on the underside of the upper band end 19 do not emerge again. since the thickness D of the strapping is regularly more than 0.3 mm. Thus, it cannot happen that the clamping teeth 30 of the tensioning wheel are pressed through the upper band end into the lower band end, which would make it impossible to brace the two parts against one another.
- the clamping plate 16 is provided with holding teeth 32 running in the longitudinal direction of the band channel 14, which, in the clamping position of the clamping plate 16 and the tensioning wheel 18 when the band is not inserted, is shown a little bit in the circumferential direction as shown in FIG. Border profile grooves 29.
- the holding teeth 32 ensure that the lower band end 20 is held firmly during the tensioning process in the band channel by pressing the holding teeth 32 into the lower band end from below, as do the clamping teeth 30 of the tensioning wheel 18 from the top in the upper band end 19.
- the special arrangement of the holding teeth and the clamping teeth relative to one another in which the holding teeth protrude a bit into the circumferential profile grooves and correspondingly the clamping teeth into the holding grooves 33 formed between the holding teeth, if no strapping band is inserted between the clamping plate and the tensioning wheel, ensures a maximum possible tensile force exerted on the belt ends with low contact forces between the tensioning wheel and the tensioning plate.
- the device 10 above the belt channel 14 is provided with a cleaning device 34 for the tensioning wheel 18, which substantial consists of an approximately wedge-shaped cleaning block 35, which is provided on its free, front wedge edge 36 with cleaning teeth 37 which engage in the circumferential profile grooves 29.
- the arrangement is such that the cleaning teeth 37 extend with their tooth tips 38 to the groove bottom 39 of the circumferential profile grooves.
- the cleaning block 35 is pivotally mounted on an axis 40 and is pressed by a pressure spring 41 with its free wedge edge 36 against the tensioning wheel 18, the cleaning teeth with their tooth tips firmly pressing into the circumferential profile grooves 29 and, when the tensioning wheel rotates, in the Scrape out any accumulated contamination. It has been shown that the contaminants that have accumulated in the transverse profile grooves 27 are also carried away, since these grooves have only a shallower groove depth and, moreover, the trapezoidal shape of the profile grooves prevents impurities from caking firmly therein.
- the cleaning block consists of a softer metal than the tensioning wheel 18 or its clamping teeth, in the present exemplary embodiment made of brass, so that its cleaning teeth 37 are continuously reground when the tensioning wheel rotates and always fit exactly and without play into the circumferential profile grooves and thereby also these scrape it out completely.
- the holding grooves are also freed of any impurities that accumulate therein when the tensioning wheel is not inserted Strapping is rotated.
- the device 10 has a clamping wheel 18 in the clamping position relative to Lead clamping plate in the axial direction 26 of the tensioning wheel Locking mechanism "42, which essentially consists of a guide finger 43 rising from the clamping plate 16, which engages in a circumferential direction guide groove 44 in the clamping wheel 18.
- the arrangement is such that the guide finger 43 is in the clamping position of the clamping wheel and When the strapping band is not inserted in the band channel, its free end 45 rests from the guide groove bottom 46, the tips of the clamping teeth 30 still gripping between the holding teeth 32, but being held at a sufficiently large distance from the groove base of the retaining grooves 33.
- the guide groove 44 goes into their radially outer area to form a radius R in the circumferential surface of the tensioning wheel 18 and thus forms a centering guide 47 for the guide finger 43, which ensures that the floating tensioning wheel with its guide groove 44 always exactly engages with the guide finger when it is pressed against the clamping plate 43 arrives ,
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
- Buckles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10026198 | 2000-05-26 | ||
DE10026198A DE10026198A1 (en) | 2000-05-26 | 2000-05-26 | Device for tensioning and closing plastic strapping |
PCT/EP2001/004534 WO2001089929A1 (en) | 2000-05-26 | 2001-04-21 | Device for tightening and sealing plastic packaging straps |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1283798A1 true EP1283798A1 (en) | 2003-02-19 |
EP1283798B1 EP1283798B1 (en) | 2003-12-10 |
Family
ID=7643706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01951457A Expired - Lifetime EP1283798B1 (en) | 2000-05-26 | 2001-04-21 | Device for tightening and sealing plastic packaging straps |
Country Status (6)
Country | Link |
---|---|
US (1) | US20030131570A1 (en) |
EP (1) | EP1283798B1 (en) |
AU (2) | AU2001272376B2 (en) |
BR (1) | BR0111177B1 (en) |
DE (2) | DE10026198A1 (en) |
WO (1) | WO2001089929A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10026197A1 (en) * | 2000-05-26 | 2001-12-06 | Cyklop Gmbh | Device for tensioning and closing strapping |
US6550375B2 (en) * | 2001-03-19 | 2003-04-22 | Illinois Tool Works Inc | Strapper with feed wheel cleaning device |
US6505766B2 (en) * | 2001-03-30 | 2003-01-14 | Illinois Tool Works Inc. | Feed wheel for strapping tool |
DE50302943D1 (en) | 2002-10-18 | 2006-05-24 | Orgapack Gmbh Dietikon | Cutting tool for a strapping apparatus and method for its manufacture |
US8356641B2 (en) * | 2007-11-02 | 2013-01-22 | Band-It-Idex, Inc. | Stationary band clamping apparatus |
US10518914B2 (en) | 2008-04-23 | 2019-12-31 | Signode Industrial Group Llc | Strapping device |
US11999516B2 (en) | 2008-04-23 | 2024-06-04 | Signode Industrial Group Llc | Strapping device |
CH705745A2 (en) * | 2011-11-14 | 2013-05-15 | Illinois Tool Works | Strapper. |
CH705743A2 (en) | 2011-11-14 | 2013-05-15 | Illinois Tool Works | Strapper. |
ES2895662T3 (en) | 2012-09-24 | 2022-02-22 | Signode Int Ip Holdings Llc | Strapping device with a pivoting rocker |
CN103086001B (en) * | 2013-02-21 | 2015-04-01 | 杭州永创智能设备股份有限公司 | Machine core of packing machine |
CH708294A2 (en) | 2013-05-05 | 2014-12-15 | Orgapack Gmbh | Strapper. |
WO2015117257A1 (en) | 2014-02-10 | 2015-08-13 | Orgapack Gmbh | Strapping device having a strip feed device |
USD864688S1 (en) | 2017-03-28 | 2019-10-29 | Signode Industrial Group Llc | Strapping device |
IT201900006286A1 (en) * | 2019-04-24 | 2020-10-24 | Itatools S R L | STRAPPING MACHINE |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US437863A (en) * | 1890-10-07 | Paper-dust collector for printing-presses | ||
US477504A (en) * | 1892-06-21 | Wheel-guard | ||
US808191A (en) * | 1904-07-28 | 1905-12-26 | Automatic Addressing Company | Addressing attachment for printing-presses. |
US1149569A (en) * | 1914-08-17 | 1915-08-10 | Seal & Fastener Co | Strap-tightening implement. |
US2986376A (en) * | 1956-09-24 | 1961-05-30 | Acme Steel Co | Strap tensioning tool |
US3232582A (en) * | 1964-01-13 | 1966-02-01 | Stanley Works | Strap restraining means for the base of a strap tensioning device |
DE1536323C3 (en) * | 1965-04-24 | 1973-11-22 | Masaho Amagasaki City Takami (Japan) | Device for connecting two overlapped plastic tape ends |
US3612480A (en) * | 1970-01-21 | 1971-10-12 | Fmc Corp | Feed wheel for strap tensioning tool |
US3996403A (en) * | 1974-11-25 | 1976-12-07 | Signode Corporation | Strapping joint and method and apparatus for forming same |
US4213794A (en) * | 1979-03-12 | 1980-07-22 | Eastman Kodak Company | Cleaning station |
US5024149A (en) * | 1989-04-15 | 1991-06-18 | Signode Corporation | Binding strap operating apparatus |
US5426816A (en) * | 1993-10-08 | 1995-06-27 | Lu Goo Co., Ltd. | Freewheel gear cluster cleaner |
US5343588A (en) * | 1993-10-08 | 1994-09-06 | Lu Goo Co., Ltd. | Gear cleaner for bicycles |
US5632851A (en) * | 1995-04-05 | 1997-05-27 | Pantech International, Inc. | Portable article strapping apparatus |
US5857238A (en) * | 1996-03-28 | 1999-01-12 | Jmill; Daria | Cleaning device for vehicle tires |
US5954899A (en) * | 1998-04-03 | 1999-09-21 | Illinois Tool Works Inc. | Strap welding tool with base plate for reducing strap column strength and method therefor |
US6131634A (en) * | 1999-05-27 | 2000-10-17 | Chang; Jeff Chieh Huang | Portable strapping apparatus |
-
2000
- 2000-05-26 DE DE10026198A patent/DE10026198A1/en not_active Withdrawn
-
2001
- 2001-04-21 DE DE50101149T patent/DE50101149D1/en not_active Expired - Fee Related
- 2001-04-21 AU AU2001272376A patent/AU2001272376B2/en not_active Ceased
- 2001-04-21 EP EP01951457A patent/EP1283798B1/en not_active Expired - Lifetime
- 2001-04-21 AU AU7237601A patent/AU7237601A/en active Pending
- 2001-04-21 US US10/297,342 patent/US20030131570A1/en not_active Abandoned
- 2001-04-21 WO PCT/EP2001/004534 patent/WO2001089929A1/en active IP Right Grant
- 2001-04-21 BR BRPI0111177-9A patent/BR0111177B1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO0189929A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20030131570A1 (en) | 2003-07-17 |
DE50101149D1 (en) | 2004-01-22 |
AU2001272376B2 (en) | 2006-02-16 |
AU7237601A (en) | 2001-12-03 |
EP1283798B1 (en) | 2003-12-10 |
BR0111177B1 (en) | 2010-05-18 |
WO2001089929A1 (en) | 2001-11-29 |
DE10026198A1 (en) | 2001-11-29 |
BR0111177A (en) | 2003-04-08 |
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