EP0395029A2 - Dancer roller device - Google Patents

Dancer roller device Download PDF

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Publication number
EP0395029A2
EP0395029A2 EP90107886A EP90107886A EP0395029A2 EP 0395029 A2 EP0395029 A2 EP 0395029A2 EP 90107886 A EP90107886 A EP 90107886A EP 90107886 A EP90107886 A EP 90107886A EP 0395029 A2 EP0395029 A2 EP 0395029A2
Authority
EP
European Patent Office
Prior art keywords
guide rollers
strip
stationary
movable guide
movable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90107886A
Other languages
German (de)
French (fr)
Other versions
EP0395029B1 (en
EP0395029A3 (en
Inventor
Makoto Sakano
Shinji Tanaka
Kazuya Kusano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Tobacco Inc
Original Assignee
Japan Tobacco 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 Japan Tobacco Inc filed Critical Japan Tobacco Inc
Publication of EP0395029A2 publication Critical patent/EP0395029A2/en
Publication of EP0395029A3 publication Critical patent/EP0395029A3/en
Application granted granted Critical
Publication of EP0395029B1 publication Critical patent/EP0395029B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/30—Arrangements for accumulating surplus web
    • B65H20/32—Arrangements for accumulating surplus web by making loops
    • B65H20/34—Arrangements for accumulating surplus web by making loops with rollers

Definitions

  • the present invention relates to a dancer roller device which accumulates a portion of a strip-like material, e.g., continuous strip-like wrapping paper for wrapping cigarettes, and absorbs a difference between feed-in and feed-out amounts of the strip-like material.
  • a strip-like material e.g., continuous strip-like wrapping paper for wrapping cigarettes
  • a dancer roller device is often arranged midway along a path for conveying a strip-like material.
  • the dancer roller device accumulates a portion of a conveyed strip-like material, and when feed-in and feed-out amounts of the strip-like material are different from each other, it absorbs the dif­ference.
  • a conventional dancer roller device generally has the following structure. That is, the conventional dancer roller device comprises a plurality of stationary guide rollers and a plurality of movable guide rollers. These movable guide rollers can approach or separate from the stationary guide rollers. A strip-like material is extended among these stationary and movable guide rollers in a zigzag manner. The movable guide rollers approach or separate from the stationary guide rollers to change an amount of the strip-like material accumulated in this dancer roller device, thereby absorbing a difference between feed-in and feed-out amounts of the strip-like material.
  • the present invention has been made to eliminate the drawbacks of the conventional dancer roller device described above, and has as its object to provide an efficient dancer roller device which can facilitate a setting operation of a strip-like material.
  • the device of the present invention comprises a plurality of sta­tionary guide rollers, and a plurality of movable guide rollers which are arranged on one side of, e.g., below the stationary guide rollers.
  • the movable guide rollers can approach or separate from the stationary guide rollers.
  • a strip-like material is extended among these stationary and movable guide rollers in a zigzag manner.
  • the movable guide rollers can pass through gaps between adjacent stationary guide rollers, and can be moved to the other side of, e.g., above the stationary guide rollers.
  • the movable guide rollers are located below the stationary guide rollers in a normal operation mode.
  • a strip-like material is extended among these movable and stationary guide rollers in a zigzag manner.
  • the movable guide rollers are moved to a position above the stationary guide rollers through gaps between adjacent stationary guide rollers. Then, the strip-like material is linearly inserted between these movable and stationary guide rollers. The movable guide rollers are then moved to a position below the stationary guide rollers through gaps between adjacent stationary guide rollers.
  • the strip-like material can be extended among the sta­tionary and movable guide rollers in a zigzag manner.
  • a strip-like material can be set by only inserting it between the stationary guide rollers and the movable guide rollers moved to an upper position, and a setting operation of the strip-like material is easy and efficient.
  • a dancer roller device according to an embodiment of the present invention will be described hereinafter.
  • the device of this embodiment is a dancer roller device arranged midway along a path for supplying strip-like wrapping paper for wrapping cigarettes.
  • the dancer roller device shown in Fig. 1 comprises a frame 1.
  • Three stationary guide rollers 2, for example, are rotatably mounted on an upper portion of the frame 1. These stationary guide rollers 2 are arranged at the same level position to be separated at equal intervals in the horizontal direction.
  • the dancer roller device comprises four movable guide rollers 4 which are moved together in accordance with a difference between feed-in and feed-out amounts of a strip-like material, i.e., a wrapping material A guided through a plurality of guide rollers 3 which define a portion of a convey path.
  • the wrapping material A of a predetermined length can be accumulated by these movable guide rollers 4.
  • the basic operational structure of the movable guide rollers 4 is known to those who are skilled in the art, and a detailed description thereof will be omitted here.
  • Upper and lower limit sensors 5 and 6 for respectively detecting upper and lower limit positions of the movable guide rollers 4 are fixed on a lower portion of the dancer roller device.
  • the movable guide rollers 4 are positioned between the upper and lower limit sensors 5 and 6 in accordance with detection signals from the upper and lower limit sensors 5 and 6. More specifi­cally, an unrolling speed of a feed roller (not shown) arranged at an upstream side of the dancer roller device in the convey path is controlled on the basis of the detection signals from the upper and lower limit sensors 5 and 6.
  • the four movable guide rollers 4 will further be described below.
  • the movable guide rollers 4 are rotatably mounted on a lift carrier 7. Of the movable guide rollers 4, inner two rollers are located below and between the stationary guide rollers 2, and the remaining movable guide rollers 4 are located below and outside the stationary guide rollers 2.
  • the lift carrier 7 is guided by three guide rods 8 to be vertically movable.
  • the lift carrier 7 is vermerelytically moved as needed by a rodless cylinder 9 consti­tuting a moving mechanism.
  • the upward movement limit of the lift carrier 7 by the rodless cylinder 9 is set above the stationary guide rollers 2.
  • the movable guide rollers 4 can be moved upward beyond the stationary guide rollers 2. In this manner, when the movable guide rollers 4 are located above the stationary guide rollers 2, an insertion path B of the wrapping material A is formed between these stationary and movable guide rollers 2 and 4.
  • the rodless cylinder 9 When the unrolling operation of the wrapping material S is stopped in the entire convey path, the rodless cylinder 9 is operated. Therefore, the movable guide rollers 4 are moved to a position defined by a sensor 10, thereby preventing the wrapping material A from being folded.
  • the movable guide rollers can be located at an upper position above the stationary guide rollers, a strip-like material need only be inserted in the insertion path defined between the movable and stationary guide rollers, thus facili­tating extension of the strip-like material with respect to the guide rollers.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Advancing Webs (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

A device of this invention includes a plurality of stationary guide rollers (2) and a plurality of movable guide rollers (4) arranged on one side of the stationary guide rollers (2). The movable guide rollers (4) can approach/separate from the stationary guide rollers (2). A strip-like material (A) is extended among the sta­tionary and movable guide rollers (2; 4) in a zigzag manner. When the strip-like material (A) is set, the movable guide rollers (4) are moved to the other side of the stationary guide rollers (2) through gaps between the stationary guide rollers (2). The strip-like material (A) is linearly inserted between the movable guide rollers (4) moved to the other side and the stationary guide rollers (2), and thereafter, the movable guide rollers (4) are returned to the one side of the stationary guide rollers (2).

Description

  • The present invention relates to a dancer roller device which accumulates a portion of a strip-like material, e.g., continuous strip-like wrapping paper for wrapping cigarettes, and absorbs a difference between feed-in and feed-out amounts of the strip-like material.
  • Conventionally, a dancer roller device is often arranged midway along a path for conveying a strip-like material. The dancer roller device accumulates a portion of a conveyed strip-like material, and when feed-in and feed-out amounts of the strip-like material are different from each other, it absorbs the dif­ference.
  • A conventional dancer roller device generally has the following structure. That is, the conventional dancer roller device comprises a plurality of stationary guide rollers and a plurality of movable guide rollers. These movable guide rollers can approach or separate from the stationary guide rollers. A strip-like material is extended among these stationary and movable guide rollers in a zigzag manner. The movable guide rollers approach or separate from the stationary guide rollers to change an amount of the strip-like material accumulated in this dancer roller device, thereby absorbing a difference between feed-in and feed-out amounts of the strip-like material.
  • However, when a strip-like material is set in the conventional dancer roller device, the strip-like material must be extended among a large number of rollers in a zigzag manner. For this reason, the setting operation of a strip-like material is cumbersome, resulting in an inefficient operation.
  • The present invention has been made to eliminate the drawbacks of the conventional dancer roller device described above, and has as its object to provide an efficient dancer roller device which can facilitate a setting operation of a strip-like material.
  • The object of the present invention can be attained by the following arrangement. That is, the device of the present invention comprises a plurality of sta­tionary guide rollers, and a plurality of movable guide rollers which are arranged on one side of, e.g., below the stationary guide rollers. The movable guide rollers can approach or separate from the stationary guide rollers. A strip-like material is extended among these stationary and movable guide rollers in a zigzag manner. The movable guide rollers can pass through gaps between adjacent stationary guide rollers, and can be moved to the other side of, e.g., above the stationary guide rollers.
  • In the dancer roller device of the present invention, the movable guide rollers are located below the stationary guide rollers in a normal operation mode. A strip-like material is extended among these movable and stationary guide rollers in a zigzag manner. When the strip-like material is cut and is set again, or when a new strip-like material is set, the movable guide rollers are moved to a position above the stationary guide rollers through gaps between adjacent stationary guide rollers. Then, the strip-like material is linearly inserted between these movable and stationary guide rollers. The movable guide rollers are then moved to a position below the stationary guide rollers through gaps between adjacent stationary guide rollers. Thus, the strip-like material can be extended among the sta­tionary and movable guide rollers in a zigzag manner.
  • According to the device of the present invention, a strip-like material can be set by only inserting it between the stationary guide rollers and the movable guide rollers moved to an upper position, and a setting operation of the strip-like material is easy and efficient.
  • This invention can be more fully understood from the following detailed description when taken in con­junction with the accompanying drawings, in which:
    • Fig. 1 is a front view of a dancer roller device according to the present invention; and
    • Fig. 2 is a partial sectional side view of an upper portion of the dancer roller device of the present invention.
  • A dancer roller device according to an embodiment of the present invention will be described hereinafter. The device of this embodiment is a dancer roller device arranged midway along a path for supplying strip-like wrapping paper for wrapping cigarettes.
  • The dancer roller device shown in Fig. 1 comprises a frame 1. Three stationary guide rollers 2, for example, are rotatably mounted on an upper portion of the frame 1. These stationary guide rollers 2 are arranged at the same level position to be separated at equal intervals in the horizontal direction.
  • The dancer roller device comprises four movable guide rollers 4 which are moved together in accordance with a difference between feed-in and feed-out amounts of a strip-like material, i.e., a wrapping material A guided through a plurality of guide rollers 3 which define a portion of a convey path. The wrapping material A of a predetermined length can be accumulated by these movable guide rollers 4. The basic operational structure of the movable guide rollers 4 is known to those who are skilled in the art, and a detailed description thereof will be omitted here. Upper and lower limit sensors 5 and 6 for respectively detecting upper and lower limit positions of the movable guide rollers 4 are fixed on a lower portion of the dancer roller device. The movable guide rollers 4 are positioned between the upper and lower limit sensors 5 and 6 in accordance with detection signals from the upper and lower limit sensors 5 and 6. More specifi­cally, an unrolling speed of a feed roller (not shown) arranged at an upstream side of the dancer roller device in the convey path is controlled on the basis of the detection signals from the upper and lower limit sensors 5 and 6.
  • The four movable guide rollers 4 will further be described below. The movable guide rollers 4 are rotatably mounted on a lift carrier 7. Of the movable guide rollers 4, inner two rollers are located below and between the stationary guide rollers 2, and the remaining movable guide rollers 4 are located below and outside the stationary guide rollers 2.
  • The lift carrier 7 is guided by three guide rods 8 to be vertically movable. The lift carrier 7 is ver­tically moved as needed by a rodless cylinder 9 consti­tuting a moving mechanism. In this case, the upward movement limit of the lift carrier 7 by the rodless cylinder 9 is set above the stationary guide rollers 2. As can be seen from Fig. 2, therefore, the movable guide rollers 4 can be moved upward beyond the stationary guide rollers 2. In this manner, when the movable guide rollers 4 are located above the stationary guide rollers 2, an insertion path B of the wrapping material A is formed between these stationary and movable guide rollers 2 and 4.
  • Therefore, when the wrapping material A guided through the convey path is extended among the stationary and movable guide rollers 2 and 4 or when the wrapping material is accidentally cut and must be extended again, the wrapping material A is simply inserted in the inser­tion path B, and thereafter, the movable guide rollers 4 are returned to a normal lower position, thus allowing easy extension of the wrapping material A.
  • When the unrolling operation of the wrapping material S is stopped in the entire convey path, the rodless cylinder 9 is operated. Therefore, the movable guide rollers 4 are moved to a position defined by a sensor 10, thereby preventing the wrapping material A from being folded.
  • As described above, according to the dancer roller device of the present invention, since the movable guide rollers can be located at an upper position above the stationary guide rollers, a strip-like material need only be inserted in the insertion path defined between the movable and stationary guide rollers, thus facili­tating extension of the strip-like material with respect to the guide rollers.

Claims (2)

1. A dancer roller device which is adapted to be arranged midway along a convey path of a strip-like material, and comprises a plurality of stationary guide rollers, and movable guide rollers arranged on one side of said stationary guide rollers, said movable guide rollers being able to approach/separate from said sta­tionary guide rollers, the strip-like material being extended between said stationary and movable guide rollers in a zigzag manner, and said movable guide rollers approaching/separating from said stationary guide rollers to absorb a difference between feed-in and feed-out amounts of the strip-like material, charac­terized by comprising:
moving means (7, 8, 9) for moving said movable guide rollers (4) to the other side of said stationary guide rollers (2) through gaps between said stationary guide rollers (2) when the strip-like material (A) is set.
2. A device according to claim 1, characterized in that said stationary guide rollers (2) rotatably project from a main body frame (1) in a cantilever manner, said moving means (7, 8, 9) comprises a carrier (7) movable relative to said frame (1), and said movable guide rollers (4) rotatably project from said carrier (7) in a cantilever manner.
EP19900107886 1989-04-26 1990-04-25 Dancer roller device Expired - Lifetime EP0395029B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1104628A JP2552356B2 (en) 1989-04-26 1989-04-26 Dancer roll device
JP104628/89 1989-04-26

Publications (3)

Publication Number Publication Date
EP0395029A2 true EP0395029A2 (en) 1990-10-31
EP0395029A3 EP0395029A3 (en) 1993-01-20
EP0395029B1 EP0395029B1 (en) 1997-01-02

Family

ID=14385706

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900107886 Expired - Lifetime EP0395029B1 (en) 1989-04-26 1990-04-25 Dancer roller device

Country Status (3)

Country Link
EP (1) EP0395029B1 (en)
JP (1) JP2552356B2 (en)
DE (1) DE69029532T2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5582339A (en) * 1994-05-17 1996-12-10 Focke & Co. (Gmbh & Co.) Apparatus for storing a continuous web of material made from packaging material
US5827166A (en) * 1993-12-16 1998-10-27 Philip Morris Incorporated Device for joining strips of a flexible material
US6012669A (en) * 1998-06-03 2000-01-11 Tharpe, Jr.; John M. Apparatus for controlling tension in a web of fabric and associated methods
WO2014207289A1 (en) * 2013-06-27 2014-12-31 Picosun Oy Forming a substrate web track in an atomic layer deposition reactor
CN107758409A (en) * 2016-08-16 2018-03-06 谭红卫 A kind of resistance braid collection device
CN111039065A (en) * 2019-12-03 2020-04-21 嘉善龙翔人造毛绒有限公司 Fabric conveying and adjusting device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2573514Y2 (en) * 1992-01-09 1998-06-04 大同特殊鋼株式会社 Threading device for strip akimureta
DE19723635C2 (en) * 1997-06-05 1999-03-25 Witels App Masch Albert Gmbh Unwinder for wire or multi-wire goods

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682363A (en) * 1970-10-12 1972-08-08 Diamond Eng & Dev Co Instant replay tape system
DE2906598A1 (en) * 1979-02-21 1980-08-28 Spiess Gmbh G DEVICE FOR COMPLETING A FLYING REEL CHANGE
EP0101044A1 (en) * 1982-08-09 1984-02-22 Dai Nippon Insatsu Kabushiki Kaisha Method and apparatus for splicing successive web rolls to feed a web into a rotary press or the like
DE3725954A1 (en) * 1986-08-27 1988-03-03 Polygraph Leipzig DEVICE FOR CONTROLLING THE UNROLLING IN DEVELOPING DEVICES
US4930672A (en) * 1988-10-28 1990-06-05 Gregoris Photo Equipment S.P.A. Storing transfer apparatus to interconnect developing and printing machines for continuous strip photographic material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5796816A (en) * 1980-12-08 1982-06-16 Asano Kenkyusho:Kk Supporting apparatus for continuously fed resin sheet in molding machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682363A (en) * 1970-10-12 1972-08-08 Diamond Eng & Dev Co Instant replay tape system
DE2906598A1 (en) * 1979-02-21 1980-08-28 Spiess Gmbh G DEVICE FOR COMPLETING A FLYING REEL CHANGE
EP0101044A1 (en) * 1982-08-09 1984-02-22 Dai Nippon Insatsu Kabushiki Kaisha Method and apparatus for splicing successive web rolls to feed a web into a rotary press or the like
DE3725954A1 (en) * 1986-08-27 1988-03-03 Polygraph Leipzig DEVICE FOR CONTROLLING THE UNROLLING IN DEVELOPING DEVICES
US4930672A (en) * 1988-10-28 1990-06-05 Gregoris Photo Equipment S.P.A. Storing transfer apparatus to interconnect developing and printing machines for continuous strip photographic material

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5827166A (en) * 1993-12-16 1998-10-27 Philip Morris Incorporated Device for joining strips of a flexible material
US5582339A (en) * 1994-05-17 1996-12-10 Focke & Co. (Gmbh & Co.) Apparatus for storing a continuous web of material made from packaging material
US6012669A (en) * 1998-06-03 2000-01-11 Tharpe, Jr.; John M. Apparatus for controlling tension in a web of fabric and associated methods
WO2014207289A1 (en) * 2013-06-27 2014-12-31 Picosun Oy Forming a substrate web track in an atomic layer deposition reactor
US9745661B2 (en) 2013-06-27 2017-08-29 Picosun Oy Method and apparatus for forming a substrate web track in an atomic layer deposition reactor
CN107758409A (en) * 2016-08-16 2018-03-06 谭红卫 A kind of resistance braid collection device
CN111039065A (en) * 2019-12-03 2020-04-21 嘉善龙翔人造毛绒有限公司 Fabric conveying and adjusting device

Also Published As

Publication number Publication date
EP0395029B1 (en) 1997-01-02
DE69029532D1 (en) 1997-02-13
EP0395029A3 (en) 1993-01-20
JPH02286553A (en) 1990-11-26
JP2552356B2 (en) 1996-11-13
DE69029532T2 (en) 1997-08-07

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