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
  • B65B27/00—Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
  • B65B27/08—Bundling paper sheets, envelopes, bags, newspapers, or other thin flat articles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
  • 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
• • 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
  • B65B27/00—Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
  • B65B27/08—Bundling paper sheets, envelopes, bags, newspapers, or other thin flat articles
  • B65B27/086—Bundling paper sheets, envelopes, bags, newspapers, or other thin flat articles using more than one tie, e.g. cross-ties

Definitions

• the invention is in the field of packaging technology and relates to a strapping device according to the preamble of the independent claim.
• the strapping device is used for strapping objects, in particular substantially cuboidal objects, e.g. of stacks of printed products such as newspapers, magazines, etc., and it serves in particular for a substantially simultaneous strapping in two mutually perpendicular directions (cross-ripening).
• a strapping material is used, which may be in the form of a band (strapping) or the form of a string or wire and which is advantageously stiff enough to be slid.
• an object to be strapped is supported on a support surface in a strapping position, positioned in the strapping position and strapped and then transported away from the strapping position.
• the strapping material which is supplied, for example, from a supply spool from below against the strapping position, in the region of the strapping position is formed into a loop which is larger than the strapping to be created and which has a position from which it can be laid around the object to be strapped , This loop is then laid by withdrawing the band around the object to be strapped, sawn, usually closed below the object and separated from further supplied strapping material.
• a loop moving means grippers are proposed, which are positioned in front of the loop movement in the region of the groove-shaped channel and the loop movement along with the loop along suitable rails to the side of the object to be hooped and driven over the object to be strapped.
• the grippers are very small parts to be accelerated and can therefore be moved very quickly.
• the invention now has the object to provide a strapping, with the simplest way, with a minimum of moving parts and still with short cycle times strapping by means of laid loop of the strapping material are feasible, in particular LssensumreifInstitut, in a simple manner with a essentially simultaneous transverse strapping can be combined.
• the strapping device according to the invention has a closing area under the support surface in which a loop channel begins and ends, in which the strapping material for loop formation is fed into the loop channel, in which the free loop end guided by the loop channel is retained, in which the strapping material for retraction and tension of the loop is withdrawn from the loop channel and in which the strapping is closed and separated from further strapping material becomes.
• the loop channel which is substantially formed as a groove in the support surface, runs in two opposite directions from the Schliess Scheme starting from the Umreifungsposition and closes around the Umreifungsposition (or to the largest floor plan of an object to be strapped) around.
• the closing area is located, for example, in the center under an object to be strapped and, for longitudinal strapping, the beginning and end of the loop channel run parallel to the conveying direction.
• the strapping device has a stationary loop guide (at least during strapping) which rises from the support surface within the loop channel and on one side from an object to be strapped positioned in the strapping position depending on the direction of feeding the object to be strapped over or against the strapping position buckles, such that the supply of an object to be strapped is not hindered by the loop guide.
• This loop guide is arranged and dimensioned such that the loop provided in the loop channel, the end of which is retained in the closing area, is lifted out of the channel during withdrawal of the strapping material and slips up the loop guide until it is positioned above the object positioned for strapping Loop guide falls and is pulled around the object and stretched.
• the loop is continually reduced by retraction of the strapping material.
• the loop guide is thus arranged and dimensioned such that a loop, which is positioned underneath the object to be strapped in the loop channel and held by the loop guide ever higher above the support surface, one having increasing height over the support surface continuously decreasing length.
• a Lhacksumreifung using the inventive device is carried out in the following manner: In the groove-shaped loop channel, for example, by inserting a free end of the strapping material from Schliess Buffalo ago until the closing area, where the loop end is held, presented a loop. For less stiff strapping materials, means may also be provided for pulling the strapping material into the loop channel.
• the object to be strapped is guided into the strapping position and positioned there.
• the strapping material is retracted in a direction opposite to the feed direction, i. the loop is reduced or shortened, rising up out of the channel and along the loop guide where the channel is not under the object to be strapped, until it falls from the top of the loop guide and settles around the positioned object.
• the loop is tensioned in a conventional manner, sealed and separated from further supplied strapping material.
• the loop channel has a considerably simpler shape than is the case according to the publication US-5078057 and that nevertheless no special, movable device parts according to publication EP-1207107 are to be provided for moving the loop.
• the means for retracting the strapping material which must be provided for tightening the loop around the object to be strapped in each case, additionally assumes the function of loop positioning.
• the equipment of the Schliessberei- ches and the loop channel are coordinated such that the band in the groove-shaped channel with its width perpendicular is aligned to the bearing surface, at least in those areas in which the channel has bends.
• This can be realized in essentially three ways. Either the closing region is equipped in a manner known per se for the unchangeable holding of the strapping belt with its width parallel to the supporting surface and the loop channel advantageously has a twist of 90 ° immediately before and after the closing region.
• the closure portion has a rotatable band holder which is held in a rotational position during the presentation of the band loop in which the bandwidth is aligned perpendicular to the support surface and which rotates during retraction of the band in a rotational position in which the bandwidth parallel to Bearing surface is aligned.
• the loop channel needs no twisting.
• the closing area is equipped for an unchangeable support of the tape with its width perpendicular to the support surface and the tape is advantageously fed with this orientation. To close the loop, the tape is held in this position and first lies flat around the strapped object when it is harvested from the strapping position. Exemplary embodiments of the strapping device according to the invention will be described in detail with reference to the following figures. Showing:
• FIG. 1 shows a three-dimensional representation of the strapping position of an exemplary embodiment of the strapping device according to the invention
• FIG. 2 shows a cross section through an exemplary groove-shaped loop channel for the strapping device according to the invention
• FIGS. 3A and 3B show a further example of a groove-shaped loop channel for the strapping device according to the invention in the closed state (FIG. 3A) and in the open state (FIG. 3B);
• FIGS. 4A and 4B show two variants of the course of a band-shaped strapping material through the closure region and in the groove-shaped loop channel of the strapping device according to the invention
• FIGS. 5 and 6 show a side view (FIG. 5) and a plan view (FIG. 6) of a further, exemplary embodiment of the strapping device according to the invention, which is equipped for cross strapping;
• FIG. 7 shows pressing means and further guiding means for the strapping material of the longitudinal strapping in the strapping device according to FIGS. 5 and 6 on an enlarged scale (side view);
• FIG. 1 shows the strapping position of an exemplary embodiment of the strapping device according to the invention. This is equipped for a central L16sumreifung an object 1, which is conveyed in a substantially horizontal conveying direction F on a support surface 2 in the Umreifungsposition and after strapping back in the conveying direction F from the Umreifungsposition addition.
• the closing area 3 is set in a corresponding recess of the support surface 2 below the level of the support surface.
• the closing area 3 From the closing area 3 extends parallel to the conveying direction F in both directions a recessed in the support surface 2, groove-shaped loop channel 4, which closes on one side around the floor plan 5 of a largest object to be strapped around.
• the closing area 3 is equipped in a manner known per se, not shown, for supplying a strapping material 6 (shown as a strapping band) in a feeding direction Z in the loop channel 4, for holding the free end 7 of the strapping material, for withdrawing the strapping material one of the feed direction Z opposite direction R, for tensioning the strapping material around the object to be strapped 1, for closing the loop around the object to be strapped and for separating the loop of further supplied strapping material.
• a strapping material 6 shown as a strapping band
• the strapping position has a loop guide 10, which here has the shape of two inside the loop channel 4 and laterally from the strapping position of the support surface 2 rising and arching over the strapping position slide rails 10.1 and 10.2. These slide rails 10.1 and 10.2 guide up the loop of the strapping material 6 provided in the loop channel 4 when the loop is reduced by retraction of the strapping material (direction R).
• the loop made of the strapping material 6 is shown in four consecutive positions. With 6.1, the initial position shown in solid is the Designated loop in which the strapping material 6 is located in the loop channel 4. With 6.2 to 6.4 compared to the loop 6.1 by retraction of the strapping material 6 in the direction R more and more shortened loops are shown in phantom. The loop 6.2 has risen by shortening out of the loop channel 4 and on the slide rails 10.1 and 10.2. The loop 6.3 has reached the end of the slide rails 10.1 and 10.2 by further shortening and will be released on further shortening of these and put on the object to be strapped 1, as shown with the loop 6.4.
• the strapping position shown in FIG. 1 is equipped for longitudinal strapping when the conveying direction is the direction F shown. From the figure it is clear that the conveying direction can also extend transversely to the illustrated direction F and that the strapping position is then equipped for Querumreifung. Furthermore, it can be seen from FIG. 1 that an object to be strapped, if it is dimensioned accordingly, or if the loop channel 4 and the slide rails 10.1 and 10.2 are arranged correspondingly, can also be brought from above into the strapping position is called with a feed direction, which does not correspond to the conveying direction F, but for example, is aligned transversely thereto. A corresponding embodiment of the device according to the invention is shown in FIGS. 8 and 9.
• the loop guide 10 can also have a plurality of slide rails instead of the two slide rails 10.1 and 10.2 shown in FIG. 1, or it can be designed as a single, flat element.
• the loop guide 10 rises within the loop channel 4 and on one side of the strapping position from the support surface 2 and arches over or against the strapping position, such that its upper end is positioned approximately above the closure region 3, for example.
• the outside of the loop guide 10 is equipped for a sliding movement of the strapping material.
• Figure 2 shows in cross-section an exemplary embodiment of the groove-shaped loop channel 4, which is embedded in the support surface 2 of the strapping device according to the invention, and a lowermost portion of the loop guide 10. Left in the figure, the inside of the loop (side of the loop guide 10), the right outside.
• a relatively stiff circumference used as a strapping material 6 abuts against the outer wall 4.1 of the channel.
• the tape attaches to the inner wall 4.2 of the channel (position 6.4 of the strapping material) and then exits the channel and is guided by the loop guide 10 as it continues to rise (position 6.5 of the strapping material) ,
• FIGS. 3A and 3B again show in cross-section a further, exemplary loop channel 4 which can be closed (FIG. 3A) and opened (FIG. 3A) with a displaceable closure element 12. In its closed position, the loop channel allows easy passing of the object to be strapped.
• FIG. 1 It is quite possible to design the loop channel 4 shown in FIG. 1 in its curved regions, as shown in FIG. 2, and in its rectilinear regions, in particular where it extends transversely to the conveying direction, in the direction shown in FIGS and Fig. 3B.
• Figures 4A and 4B show a plan view of the support surface two variants, according to which a band-shaped strapping material 6 can be arranged in the loop channel and through the closing area. It is ever a belt loop shown and very schematically the closing area 3, in which the strapping material 6 fed into the loop channel (direction Z), the free end 7 held and the strapping 6 withdrawn from the loop channel (direction R) is. The loop channel is not shown.
• the strapping band 6 is oriented along its entire loop length with its width perpendicular to the contact surface, that is to say the loop channel has no torsions.
• the closing area can be equipped for a rotation of the band during the movement of the loop around the object to be strapped.
• a tape holder is provided, which is rotatable by at least 90 °.
• the band holder consists, for example, of a welding head 13 and an anvil 14, between which the free end 7 of the strapping band and the loop-closing area thereof are held during the tightening of the loop and also during the closing of the loop.
• the strapping band 6 is held in the position shown in FIG. 4A (bandwidth perpendicular to the support surface).
• the welding head 13 and the anvil 14 rotate together until the width of the strap is aligned parallel to the support surface. In this position, the loop is closed by welding.
• the rotatability of the tape holder may be active or passive depending on the stiffness of the strapping.
• the rotatable band holder advantageously has elastic return means, by which the band holder, as soon as the strapping band is removed therefrom, is rotated back into the starting position. If a strapping is used, which is relatively well elastically deformable, can be dispensed with the above-described, rotatable band holder. In such a case, the strap is held in the closing area 3 permanently in a position in which its width is aligned perpendicular to the support surface. As a result, it is wound more and more as the loop ascends and remains twisted during the tightening of the loop around the object to be strapped and during the closing of the loop. The twisting dissolves only when the strap is released after completion of the strapping of the strap holder.
• FIG. 4B shows a closing region 3, which is equipped for an unchangeable holding of the strapping band 6 with its width parallel to the supporting surface.
• the loop channel advantageously in areas 15, which connect directly to the closing area 3, to make each 90 ° twisted.
• Figures 5 and 6 show an exemplary embodiment of the inventive device as a side view in the conveying direction ( Figure 5) and as a plan view of the support surface 2 ( Figure 6).
• the device is equipped for cross-strapping, wherein the longitudinal strapping is performed, as described in connection with FIG.
• a stationary loop channel 30 is provided in a manner known per se, which bends in a plane transverse to the conveying direction F (transverse strapping plane Q) around the strapping position.
• the object to be strapped is, for example, a stack of newspapers, magazines or other flat objects.
• the strapping material 6 is withdrawn for the longitudinal and for Querumreifung of a supply roll 31 each.
• the apparatus further comprises pressing means 40 for pressing the object 1 to be strapped before and during the strapping and drive means 41 for the pressing means.
• pressing means 40 are also equipped for further functions in addition to the pressing function and will be described in more detail in connection with FIG.
• the apparatus shown in FIGS. 5 and 6 is equipped for transverse strapping following the longitudinal strapping, wherein the two strapping processes can also overlap at least to a limited extent in terms of time. For this reason, the loop channel 30 extends for the Querumreifung outside the path of the longitudinal loop and spans uninterrupted on the Umreifungsposition.
• the loop guide (slide rails 10.1 and 10.2) terminate below the loop channel 30 for Querumreifung rising outside the groove-shaped loop channel 4 for the Lssensumreifung from the support surface.
• the groove-shaped loop channel 4 as shown in FIG. 6, can have not only convex but also concave bends. If only one Lticiansumreifung is provided, can be dispensed with the concave bend (channel 4 ', shown in dotted lines).
• FIG. 7 shows as a side view like FIG. 5 but in more detail the strapping position and in particular the pressing means 40 of the device according to FIGS. 5 and 6.
• these pressing means 40 consist of four relative to the strapping planes (longitudinal strapping plane L, FIG. Querumreifungsebene Q) arranged in mirror image, pressing elements 42.
• the strapping planes longitudinal strapping plane L, FIG. Querumreifungsebene Q
• a corresponding pair of pressing elements is provided for a strapping position, which is equipped for only one strapping.
• the pressing elements 42 can be lowered by means of a common drive 41 onto the object 1 to be strapped.
• the drive 41 is realized, for example, as a chain hoist 43 arranged below the support surface 2 with traverses 44 coupled thereto and with a support 45 arranged perpendicular to each pressing element 42 and arranged laterally of the hooping position.
• the pressing members 42 may be formed as simple relative to the vertical supports 45 stationarily arranged pressing plates.
• they are, as shown in Figure 7, configured as angled toggle 46, which are arranged tiltable about an axis 47 in the region of the upper ends of the vertical support 45 and each one extending over the Umreifungsposition, pressing part 46.1 and a have laterally extending part 46.2.
• the knee lever part 46.2 is distanced for example by means of spring 48 from the vertical support 45, such that the toggle lever part 46.1 is directed at uncompressed spring 48 from the axis of rotation 47 from below.
• the traverses 44 and thus also the vertical straps 45 and the toggle levers 46 are in an uppermost position, which is shown in phantom for the knee levers in FIG.
• the pressing elements 42 are moved downwards.
• the ends of the pressing toggle parts 46.1 meet first on the object to be strapped and these toggle parts are pressed on further lowering under compression of the springs 48 in a horizontal position.
• the pressing elements 42 can simultaneously also assume a guiding function for a loop released from the loop guide 10.
• freely rotatable rollers 50 are arranged at the two ends of the toggle lever parts 46.1 and 46.2 and optionally also therebetween, of which a guide band 51, des- sen both ends are fixed to stationary parts of the device is held in a predetermined position.
• Each of the four pressing elements 42 is associated with at least one such guide band 51.
• the guide bands 51 extend on one side of the L jossumreifungsebene L from the loop channel 30 for Querumreifung on the other side of the Lssensumreifungsebene L from the end of the loop guide 10 to the end of the pressing toggle 46.1, from there to the end of the side toggle 46.2 and from there against the supporting surface.
• the guide bands 51 are optionally held slightly stretched with suitable means, not shown.
• the uppermost parts of the guide belts 51 form a guide channel 55 which is parallel to the longitudinal strapping plane L and open above the loop guide 10, in which the loop of the longitudinal strapping material moves from the end of the loop guide 10 onto the object 1 to be strapped.
• FIGS. 5 to 7 further show a means by means of which a cover sheet 60 to be applied prior to strapping onto the object 1 to be strapped can be positioned for the application.
• a cover sheet 60 to be applied prior to strapping onto the object 1 to be strapped can be positioned for the application.
• These are four, in turn, mirror images of the two strapping planes L and Q arranged above the strapping position, substantially stationary blade carriers 61 (for easy strapping two blade carriers).
• the height of the blade carrier 61 over the support surface 2 is such that even the highest object to be strapped can be conveyed in the unpressed state below into the strapping position.
• the cover sheets 60 are synchronized with successive strapping in a manner not shown rectified, for example, with the conveying direction F and positioned from above on the sheet carriers 61 and are then bent by the leading ends of the pressing toggle 46.1 down and thus pulled by the sheet carriers 61 and positioned on the object to be strapped 1 and pressed against this.
• FIGS. 8 and 9 show a further, exemplary embodiment of the device according to the invention.
• This device differs from the devices of the preceding figures in that the conveying direction parallel to the support surface 2 of the strapping position F is only the direction of conveying away the strapped object 1 from the strapping position and the object 1 to be strapped from above, that is, is brought into the strapping position substantially perpendicular to the support surface 2 and to the conveying direction F (feed direction F ').
• the two slide rails 10.1 and 10.2 or a differently configured loop guide means does not extend or arch over the strapping position, but only leaves them against the access to the strapping position from above. This is clearly evident from FIG.
• the object 1 strapped in the device according to FIGS. 8 and 9 is, for example, a stack or cross stack of flat objects, which is formed, for example, in the strapping position by feeding stack sections 1.1 from above (feed direction F ') in the strapping position.
• stack sections 1.1 from above (feed direction F ') in the strapping position.
• corner guides 70 which are displaceable or retractable at least on the output side for the ejection of the strapped stack.
• the stacking sections may be formed directly above the strapping position by stacking supplied shingled stream sections.
• the strapping with the aid of the loop guide can be a longitudinal or Querumreifung (relative to the Wegholdcardi F).
• An additional, at least partially simultaneous strapping (cross mating) is not possible with at least one further loop channel, as it is proposed in Figures 5 and 6 for the additional Querumreifung (no accessibility from above).
• a cross strapping can be achieved by means of a further strapping position 71 (transverse strapping) following in the conveying direction F to the strapping position according to the invention (longitudinal strapping).
• the further strapping position is equipped with, for example, a further loop channel 30 extending transversely to the conveying direction F and extending in a substantially vertical plane.
• Pressing elements and elements for feeding cover sheets as shown in FIGS. 6 and 7, for the embodiment of the device according to the invention, as shown in FIGS. 8 and 9, likewise have to be equipped in such a way (eg laterally displaceable) that they are the same Supply of the object to be strapped from above does not stand in the way.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Basic Packing Technique (AREA)
• Saccharide Compounds (AREA)
• Finger-Pressure Massage (AREA)
• Thermotherapy And Cooling Therapy Devices (AREA)
• Microwave Tubes (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=29783981

Family Applications (1)

Country Status (9)

Families Citing this family (9)

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• 2003
  • 2003-05-22 WO PCT/CH2003/000325 patent/WO2004002829A1/fr not_active Ceased
  • 2003-05-22 DE DE50304670T patent/DE50304670D1/de not_active Expired - Lifetime
  • 2003-05-22 ES ES03720077T patent/ES2270007T3/es not_active Expired - Lifetime
  • 2003-05-22 DK DK03720077T patent/DK1517836T3/da active
  • 2003-05-22 CA CA002490910A patent/CA2490910A1/fr not_active Abandoned
  • 2003-05-22 AU AU2003223825A patent/AU2003223825B2/en not_active Ceased
  • 2003-05-22 EP EP03720077A patent/EP1517836B1/fr not_active Expired - Lifetime
  • 2003-05-22 AT AT03720077T patent/ATE336430T1/de not_active IP Right Cessation
  • 2003-05-22 US US10/519,296 patent/US7086213B2/en not_active Expired - Fee Related

Non-Patent Citations (1)

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