EP3363948A1 - Pelliculeuse et procédé de pelliculage associé - Google Patents

Pelliculeuse et procédé de pelliculage associé Download PDF

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Publication number
EP3363948A1
EP3363948A1 EP15906023.5A EP15906023A EP3363948A1 EP 3363948 A1 EP3363948 A1 EP 3363948A1 EP 15906023 A EP15906023 A EP 15906023A EP 3363948 A1 EP3363948 A1 EP 3363948A1
Authority
EP
European Patent Office
Prior art keywords
cardboard
wax
coating machine
transport wheel
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.)
Withdrawn
Application number
EP15906023.5A
Other languages
German (de)
English (en)
Other versions
EP3363948A4 (fr
Inventor
Chi-Wah LAU
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.)
Lau Chi Wah
Original Assignee
Lau Chi Wah
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 Lau Chi Wah filed Critical Lau Chi Wah
Publication of EP3363948A1 publication Critical patent/EP3363948A1/fr
Publication of EP3363948A4 publication Critical patent/EP3363948A4/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
    • D21H23/56—Rolls
    • D21H23/58—Details thereof, e.g. surface characteristics, peripheral speed
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
    • D21H23/56—Rolls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/18—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising waxes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/16—Sizing or water-repelling agents

Definitions

  • the present invention relates to a coating machine and a coating method thereof. More particularly, the invention relates to a coating machine and method for use in the manufacture of cardboard boxes to coat heat-insulating cardboard with wax.
  • One objective of the present invention is to provide a coating machine that is structurally simple, highly automated, and capable of waxing not only the surface, but also the edges, of cardboard so that waterproofness of the entire cardboard is ensured.
  • Another objective of the present invention is to provide a coating method that is easy to perform, highly automated, and capable of waxing not only the surface, but also the edges, of cardboard so that waterproofness of the entire cardboard is ensured.
  • the present invention provides a coating machine that includes a cardboard conveying mechanism and a wax dispenser.
  • the cardboard conveying mechanism has a front end and a back end, wherein the front end is lower than the back end.
  • the wax dispenser is provided above the back end and is provided with a wax dispensing roller on each of two lateral sides of the wax dispenser.
  • each of the wax dispensing rollers includes a roller body and a felt sleeve.
  • Each roller body has a hollow chamber in communication with the wax dispenser through a connecting tube and is provided with a plurality of through holes in communication with the hollow chamber.
  • Each felt sleeve is mounted around the corresponding roller body.
  • the cardboard conveying mechanism includes a conveyor body and a plurality of pressure rollers.
  • the conveyor body has a front-end conveying wheel, a back-end conveying wheel, and a conveyor belt looped around the front-end conveying wheel and the back-end conveying wheel.
  • Cardboard can be placed on the conveyor belt in order to be coated.
  • the pressure rollers are provided above the conveyor body such that cardboard can be held between the conveyor belt and the pressure rollers.
  • the coating machine further includes a wax trough below the wax dispenser and the two wax dispensing rollers.
  • the front end of the cardboard conveying mechanism is provided with a cardboard holder, and the cardboard holder has an inclined cardboard-supporting table.
  • the back end of the cardboard conveying mechanism is provided with a transport mechanism that includes a front-end transport wheel, a middle transport wheel, and a rear-end transport wheel. Both the front-end transport wheel and the rear-end transport wheel are lower than the middle transport wheel.
  • a first transport belt is looped around the front-end transport wheel and the middle transport wheel while a second transport belt is looped around the middle transport wheel and the rear-end transport wheel.
  • the rear-end transport wheel is lower than the front-end transport wheel.
  • a cardboard collector is provided near the rear-end transport wheel.
  • the coating machine further includes a wax reservoir for storing liquid wax.
  • the wax reservoir is connected to the wax dispenser through a pump and is below the wax trough.
  • the present invention also provides the coating method of the foregoing coating machine, wherein the coating method includes the steps of:
  • the cardboard is heat-insulating cardboard
  • the heat-insulating cardboard includes a cardboard body and a heat-insulating material adhesively bonded to each other, and that an outer surface of the cardboard body as well as two lateral edges and a forward edge of the heat-insulating cardboard is to be coated with wax.
  • the cardboard body is 0.3 mm ⁇ 9 mm thick.
  • the heat-insulating material is 1 mm ⁇ 6 mm thick.
  • the coating machine and coating method of the present invention have the following features and advantages:
  • the two wax dispensing rollers can wax two lateral edges of a sheet of cardboard respectively while the wax dispenser dispenses wax evenly over the upper surface and forward edge of the cardboard, and this effectively ensures that the coated cardboard is waterproofed as a whole.
  • the invention is structurally simple, easy to perform, and highly automated.
  • the present invention provides a coating machine that includes a cardboard conveying mechanism 1 and a wax dispenser 2.
  • the cardboard conveying mechanism 1 has a front end 11 and a back end 12, wherein the front end 11 is lower than the back end 12.
  • the wax dispenser 2 is provided above the back end 12, and a wax dispensing roller 3 is provided on each of two lateral sides of the wax dispenser 2.
  • the cardboard conveying mechanism 1 includes a conveyor body 4 and a plurality of pressure rollers 5.
  • the conveyor body 4 has a front-end conveying wheel 41, a back-end conveying wheel 42, and a conveyor belt 43 looped around the front-end conveying wheel 41 and the back-end conveying wheel 42.
  • Cardboard 10 can be placed on the conveyor belt 43 in order to be coated.
  • the cardboard 10 may be a single- or multi-ply composite cardboard having a thickness ranging from 0.3 mm to 9 mm; the present invention has no limitation in this regard.
  • the pressure rollers 5 are provided above the conveyor body 4 in such a way that the cardboard 10 can be held between the conveyor belt 43 and the pressure rollers 5.
  • the wax dispenser 2 is located above the back end 12 of the cardboard conveying mechanism 1 and has a wax outlet 21 lying above the back-end conveying wheel 42 of the cardboard conveying mechanism 1.
  • the wax outlet 21 of the wax dispenser 2 is a slit whose length corresponds to the width of the cardboard 10.
  • the front-end conveying wheel 41 and the back-end conveying wheel 42 of the cardboard conveying mechanism 1 are rotated and thereby move the cardboard 10 from the front end 11 to the back end 12 of the cardboard conveying mechanism 1 via the conveyor belt 43.
  • the cardboard 10 is conveyed slantingly upward such that the liquid wax in the wax dispenser 2 above the back end 12 falls as a curtain on the forward edge of the cardboard 10. Meanwhile, constant-speed movement of the cardboard 10 along the cardboard conveying mechanism 1 allows the liquid wax falling from the wax dispenser 2 to curtain-coat the entire upper surface of the cardboard 10.
  • the upper surface as well as the forward edge of the cardboard 10 is evenly coated with liquid wax. It is worth mentioning that, during the conveying process, the pressure rollers 5 hold the cardboard 10 against the conveyor belt 43 to prevent the cardboard 10 from sliding off the conveyor belt 43.
  • each wax dispensing roller 3 includes a roller body 31 and a felt sleeve 32.
  • the roller body 31 has a hollow chamber in communication with the wax dispenser 2 through a connecting tube 33.
  • the roller body 31 is also provided with a plurality of through holes 311 in communication with the hollow chamber.
  • the felt sleeve 32 is mounted around the roller body 31.
  • the wax dispensing roller 3 has a fixing frame 34.
  • the roller body 31 is rotatably connected to the fixing frame 34 via bearings provided respectively at two ends of the roller body 31.
  • the roller body 31 is generally cylindrical and has its upper end connected to the wax dispenser 2 through the connecting tube 33 in order for the liquid wax in the wax dispenser 2 to flow through the connecting tube 33 into the hollow chamber of the roller body 31.
  • the through holes 311 are provided in the peripheral wall of the roller body 31 and are in communication with the hollow chamber so that the liquid wax flowing into the hollow chamber of the roller body 31 can flow through the through holes 311 to the outer surface of the roller body 31.
  • the felt sleeve 32 is generally cylindrical, has an inner diameter slightly larger than the outer diameter of the roller body 31, and is mounted around the outer surface of the roller body 31 so as to rotate along with the roller body 31. While the roller body 31 is rotated, the felt sleeve 32 is in contact with the outer surface of the roller body 31 and can also contact the corresponding lateral edge of the cardboard 10, thereby dispensing the liquid wax on the outer surface of the roller body 31 to (i.e., waxing) the corresponding lateral edge of the cardboard 10.
  • the coating machine further includes a wax trough 8 below the wax dispenser 2 and the two wax dispensing rollers 3 in order to collect excess liquid wax flowing out of the wax dispenser 2 and the wax dispensing rollers 3.
  • the wax trough 8 lies above the wax reservoir 7, and the liquid wax in the wax trough 8 can flow into the wax reservoir 7 through an outlet at the bottom of the wax trough 8.
  • the front end 11 of the cardboard conveying mechanism 1 is provided with a cardboard holder 13.
  • the cardboard holder 13 has an inclined cardboard-supporting table 131 on which to place the cardboard 10 to be waxed and that facilitates conveyance of the cardboard 10 by giving the cardboard 10 the same inclination angle as the conveyor belt 43 before the cardboard 10 is fed into the cardboard conveying mechanism 1.
  • the transport mechanism 9 includes a front-end transport wheel 91, a middle transport wheel 92, and a rear-end transport wheel 93. Both the front-end transport wheel 91 and the rear-end transport wheel 93 are lower than the middle transport wheel 92.
  • a first transport belt 94 is looped around the front-end transport wheel 91 and the middle transport wheel 92 while a second transport belt 95 is looped around the middle transport wheel 92 and the rear-end transport wheel 93.
  • the rear-end transport wheel 93 is lower than the front-end transport wheel 91.
  • the front-end transport wheel 91, the middle transport wheel 92, and the rear-end transport wheel 93 of the transport mechanism 9 are rotated such that the first transport belt 94 receives the curtain-coated cardboard 10 from the cardboard conveying mechanism 1 and transports the cardboard 10 to the second transport belt 95, which further transports the cardboard 10 to a cardboard collector 96 near the rear-end transport wheel 93 to complete collection of the waxed cardboard 10.
  • the coating machine of the present invention is so designed that not only can the wax dispenser 2 coat the upper surface and forward edge of the cardboard 10 evenly with wax, but also the two wax dispensing rollers 3 can wax the two lateral edges of the cardboard 10 respectively to ensure that the cardboard 10 is waterproofed as a whole.
  • the coating machine features a simple structure and a high degree of automation.
  • the present invention further provides the coating method of a coating machine.
  • the structures, working principle, and advantageous effects of the coating machine in embodiment 2 are identical to those of the coating machine in embodiment 1 and hence will be not be described repeatedly.
  • the coating method of the coating machine includes the following steps:
  • the cardboard conveying mechanism 1 is inclined at a certain angle such that the cardboard 10 placed thereon is inclined at the same angle.
  • the front-end conveying wheel 41 and the back-end conveying wheel 42 of the cardboard conveying mechanism 1 are rotated and thereby move the cardboard 10 from the front end 11 to the back end 12 of the cardboard conveying mechanism 1 via the conveyor belt 43.
  • the liquid wax in the wax dispenser 2 above the back end 12 falls as a curtain on the forward edge of the cardboard 10, and constant-speed movement of the cardboard 10 along the cardboard conveying mechanism 1 allows the liquid wax falling from the wax dispenser 2 to also curtain-coat the entire upper surface of the cardboard 10. Consequently, the upper surface as well as the forward edge of the cardboard 10 is evenly coated with liquid wax.
  • the pressure rollers 5 above the cardboard conveying mechanism 1 hold the cardboard 10 against the conveyor belt 43 to prevent the cardboard 10 from sliding off the conveyor belt 43.
  • the cardboard 10 is heat-insulating cardboard that includes a cardboard body and a heat-insulating material adhesively bonded to each other.
  • the liquid wax falling from the wax dispenser 2 can curtain-coat the outer surface of the cardboard body and the forward edge of the heat-insulating cardboard, and each of the two lateral edges of the heat-insulating cardboard can be coated by the wax dispensing roller 3 on one of the two lateral sides of the wax dispenser 2.
  • the cardboard body has a thickness of 0.3 mm ⁇ 9 mm
  • the heat-insulating material has a thickness of 1 mm ⁇ 6 mm.
  • the coating method of the present invention not only dispenses wax to the upper surface and forward edge of the cardboard 10, but also waxes the two lateral edges of the cardboard 10 to effectively ensure waterproofness of the entire cardboard 10. Aside from being capable of waxing the whole cardboard 10, the coating method is easy to perform and features a high degree of automation.

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  • Making Paper Articles (AREA)
  • Coating Apparatus (AREA)
EP15906023.5A 2015-10-13 2015-10-13 Pelliculeuse et procédé de pelliculage associé Withdrawn EP3363948A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/091837 WO2017063138A1 (fr) 2015-10-13 2015-10-13 Pelliculeuse et procédé de pelliculage associé

Publications (2)

Publication Number Publication Date
EP3363948A1 true EP3363948A1 (fr) 2018-08-22
EP3363948A4 EP3363948A4 (fr) 2019-07-03

Family

ID=58516942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15906023.5A Withdrawn EP3363948A4 (fr) 2015-10-13 2015-10-13 Pelliculeuse et procédé de pelliculage associé

Country Status (4)

Country Link
US (1) US20180237994A1 (fr)
EP (1) EP3363948A4 (fr)
CN (1) CN107636229A (fr)
WO (1) WO2017063138A1 (fr)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2636838A (en) * 1947-04-14 1953-04-28 Mead Corp Method of producing a flat moistureproof paper lamination
GB1050362A (fr) * 1963-12-13 1900-01-01
JPH0782697A (ja) * 1993-09-10 1995-03-28 Sugiyama Kinji 枚葉シートの表面加工方法
JP3262067B2 (ja) * 1998-05-01 2002-03-04 特種製紙株式会社 湿紙層への細片の分散方法
JP3785974B2 (ja) * 2001-09-13 2006-06-14 日本製紙株式会社 塗工紙の断紙防止方法
DE102004002664B4 (de) * 2004-01-19 2006-09-14 Papier-Mettler Inhaber Michael Mettler Einwickelpapier und Verfahren zu seiner Herstellung
CN101457502A (zh) * 2007-12-10 2009-06-17 宏基淋膜纸业有限公司 淋膜披覆pla生物分解材料的制法以及其装置
CN101503869B (zh) * 2008-02-05 2010-12-15 伟盟工业股份有限公司 生物可分解防水复合纸及其制造方法
CN201704582U (zh) * 2010-02-23 2011-01-12 浙江彩通印刷包装有限公司 一种淋膜装置
CN102191723B (zh) * 2010-03-08 2012-11-21 深圳雅昌彩色印刷有限公司 宣纸涂布设备
CN202416066U (zh) * 2011-12-30 2012-09-05 哈尔滨鹏程塑料彩印有限公司 一种可控制涂布量、涂布位置的涂蜡装置
US9016232B2 (en) * 2012-06-25 2015-04-28 Profero Systems, Inc. Paper coating apparatus with multiple hot wax applicators and associated methods
CN104694039B (zh) * 2013-12-04 2017-03-08 上海杰事杰新材料(集团)股份有限公司 一种双面淋膜无纺布及其制备方法
CN104672824A (zh) * 2015-02-09 2015-06-03 邢鹏 一种pbat淋膜的复合材料的制备方法及设备

Also Published As

Publication number Publication date
EP3363948A4 (fr) 2019-07-03
CN107636229A (zh) 2018-01-26
WO2017063138A1 (fr) 2017-04-20
US20180237994A1 (en) 2018-08-23

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