US3601090A - Continuous impregnation plant of cardboard or like support - Google Patents

Continuous impregnation plant of cardboard or like support Download PDF

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Publication number
US3601090A
US3601090A US834069A US3601090DA US3601090A US 3601090 A US3601090 A US 3601090A US 834069 A US834069 A US 834069A US 3601090D A US3601090D A US 3601090DA US 3601090 A US3601090 A US 3601090A
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US
United States
Prior art keywords
chains
sheets
bath
tank
pair
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.)
Expired - Lifetime
Application number
US834069A
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English (en)
Inventor
Roger Vallon
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.)
ONDULINE ASSET CORP
ONDULINE SALES AND SERVICE CORP
Original Assignee
OMNIUM FR IND COMMERC OFIC
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 OMNIUM FR IND COMMERC OFIC filed Critical OMNIUM FR IND COMMERC OFIC
Application granted granted Critical
Publication of US3601090A publication Critical patent/US3601090A/en
Assigned to ONDULINE SALES AND SERVICE CORP. reassignment ONDULINE SALES AND SERVICE CORP. MERGER (SEE DOCUMENT FOR DETAILS). Assignors: OUDULINE ASSET CORPORATION
Assigned to ONDULINE ASSET CORP. reassignment ONDULINE ASSET CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GARDEN STATE PAPER COMPANY, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D21H23/66—Treating discontinuous paper, e.g. sheets, blanks, rolls
    • D21H23/68—Treating discontinuous paper, e.g. sheets, blanks, rolls whereby the paper moves continuously
    • 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
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J1/00—Fibreboard
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/61—Bitumen
    • 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
    • D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
    • D21H23/42—Paper being at least partly surrounded by the material on both sides

Definitions

  • Another known process consists in projecting hot bitumen on to the two faces of a continuous sheet circulating between banks of projectors situated on each side of the sheet. This process, which permits continuous movement of the material, nevertheless does not effect its complete impregnation.
  • the present invention has as object an installation making it possible to achieve complete and also continuous impregnation of sheets or boards of card or other material so as to form a dry, nonsticky product.
  • the installation forming the object of the invention comprises a tank of generally parallelepipedic shape, the two end walls of which are inclined so as to permit progressive ingress and egress of sheets or boards of card, felt, or other similar material in continuous succession into and out of the impregnation product, which is liquid or brought to and kept in the liquid state and which is introduced into said tank, said sheets or boards being held vertical between two pairs of conveyor chains, namely a bottom pair and a top pair, which carry them from an end for the entry and introduction of the sheets or boards between the chains to the other end, which is the outlet end where the sheets are unhooked after having been entirely immersed over a large part of their travel in the impregnation bath.
  • top and bottom chains which are parallel to one another, are connected in each pair by spacers, on which there are clipped springs holding the sheets in a vertical position and at regular intervals in the bath.
  • the bath is heated by coils through which hot fluid such as oil or steam may circulate, situated at the bottom and on the inside walls of the tank.
  • a reservoir and pumping unit makes it possible for the impregnating material to be recycled together with makeup material.
  • the chains move at a speed which may vary in accordance with the thickness of the product to be impregnated and the density of the impregnating material.
  • the slides on which the chains run may be completely or partly heated outside the bath in order to prevent material from sticking to the chains, which would have the effect of considerably increasing the driving torque.
  • FIG. 1 illustrates diagrammatically the whole installation
  • FIG. 2 is a plan view of a fragment of the bottom conveyor system
  • FIG. 3 shows the shape of the support springs
  • FIG. 4 shows the shape of the side stop springs
  • FIG. 5 is a view in elevation of a sheet placed in position between the top and bottom conveyor systems.
  • the installation comprises a tank 1 of generally parallelepipedie shape, with raised end walls and a flat bottom, the depth of which is substantially greater than the height of the sheets or boards to be impregnated.
  • the tank 1 is of metal or other material considered suitable, and is thermally insulated to prevent the loss of heat.
  • sides 2, 3, and 4 in the form of a vat extending along the bottom and inclined end walls, which slides are supported by the longitudinal walls while two parallel conveyor chains 5 can run over them.
  • Corresponding slides 2 6, 7, and 8 are installed beneath the tank and beneath the inclined walls in order to guide the bottom runs of the conveyor chains 5.
  • the chains 5 are likewise guided by pinions 9 rotating freely on fixed shafts mounted on plain bearings carried by the metal frame of the installation. They are driven by two driving pinions 10 keyed on a shaft 11 receiving its rotational movement from any suitable driving means.
  • the upper chains 12 are guided by pinions 17 similar to the pinions 9 and mounted in the same manner as the latter with regard to that part of them situated at the highest level. With regard to the parts situated directly above and in the tank, their bottom side can run on horizontal slides 13 enabling the chains to carry sheets or boards of greater height.
  • the top chains 12 are driven by two driving pinions 24 keyed on a shaft 25 receiving its rotational movement through a transmission 26 connected to the driving shaft 11 and ensuring synchronous movement of the four chains.
  • the bottom chains 5 and top chains 12 are thus installed in such a manner as to remain always parallel and always equidistant.
  • the chains are tensioned by means of two jacks 27 in respect of the bottom chains, and two jacks 26 in respect of the top chains. These jacks may be hydraulic or pneumatic.
  • Supply pipes 29 make it possible to introduce the impregnating product, for example bitumen, into the tank.
  • the bitumen outlets 30 are situated at the two ends of the tank 1.
  • Coils 31 are distributed over the bottom and walls of the tank in order to enable the bath to be heated by circulating hot oil (thermal fluid) or steam therein.
  • a reservoir 32 having a heating jacket enables the bitumen or other impregnating product coming from the slides 8 of the bottom chains to be recovered.
  • a reserve vessel and pumping unit enable the impregnating product to be recycled together with makeup product.
  • the slides situated outside the bath may be completely or partially heated in order to prevent the impregnating product from sticking to the chains, which would have the effect of considerably increasing the driving torque.
  • the conveyor chains are arranged so as to drive, in a continuous succession, sheets or boards of card or other similar material, whether corrugated or otherwise.
  • they are constructed as illustrated in FIGS. 2 to 4, which show part of the bottom conveyor system comprising to two chains
  • the chains 5 are composed of rollers 33 running on the slides 6 and connected together by the links 34.
  • the rollers 33 of the two chains are mounted on rods 35 carrying a tubular spacer 35' and thus connecting the rollers facing one another on the two chains, while ensuring the parallelism and constant spacing of the two chains.
  • each spring 36 Over the spacers 35 (-FIG. 3) there are clipped flat springs 36 forming a cradle and intended to serve as support for the sheet or board 37 to be impregnated. The ends of each spring are rolled to enable them to surround the spacer 35 and to fit by pressure over two consecutive spacers.
  • the springs 36 and 38 are similar to those illustrated in FIGS. 3 and 4, but they are placed on the spacers with their curved part at the top instead of being at the bottom.
  • the sheets or boards 37 can thus be held between the support springs of the bottom chains and the spring of the top chains, resting on the former and being capped by the latter, as shown in FIG. 5.
  • the sheets or boards 37 are placed in position between the chains at the entry E, on the right in FIG. 1.
  • the two bottom chains 5 follow theinclined slide 7 and plunge to the bottom of the bath, circulating horizontally in the latter, and then rise on the inclined slides 8 and pass under the tank to return to the inlet.
  • the two upper chains 12 follow the inclined slides 14 at the same speed as the bottom chains 5, but at a distance from the latter which corresponds to the height of the sheets to be impregnated. They drop to the bottom of the bath and then rise, following the inclined slides 15 and pass above the tank along the slides 16.
  • the sheets 37 are transported in the bath while held vertical, and when they arrive at the outlet S they can easily be collected because the shape of the support springs permits their release at the moment when the chains arrive at the driving pinions 10 and 24 which move the bottom chains away from one another.
  • the tank is partly closed at the top by movable panels 39.
  • Hoods 40 and 41 are fitted over the open portions at the inlet and outlet.
  • the hood 40 at the inlet end can cover the opening and permit impregnation in a closed container, but a group of fans situated in the chimney 42 may be mounted on it.
  • the hood 41 at the outlet end is provided with a chimney 43 in which there is placed a fume extractor fan and a filter for purifying air discharge to the atmosphere.
  • each hood An opening is provided in each hood for the entry and exit of the sheets, and the sheets or boards placed at regular intervals and moving with the chains complete the closure of the hoods.
  • Apparatus for continuous impregnation of sheet material comprising a tank of parallelepipedic shape, the two end walls of which are inclined so as to permit progressive ingress and egress of material in sheets in a continuous succession into and out of a bath of liquid impregnation material introduced into said tank, two pairs of conveyor chains, a bottom pair and a top pair, holding said sheets vertically between them and carrying them from an inlet end between the chains to the outlet end where the sheets are disconnected after complete immersion over a major part of their travel in the bath.
  • Apparatus according to claim 1 wherein, a reservoir and a pumping unit are provided for recycling of the impregnating material simultaneously with makeup material.
  • Apparatus according to claim 1 wherein the chains move at a speed varying in dependence on the thickness of the sheet to be impregnated and the density of the impregnating materi- 6. Apparatus according to claim 1, wherein said chains run on slides which are heated outside the bath to prevent material from sticking to the chains.

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  • Coating Apparatus (AREA)
  • Paper (AREA)
US834069A 1968-07-16 1969-06-17 Continuous impregnation plant of cardboard or like support Expired - Lifetime US3601090A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR159386 1968-07-16

Publications (1)

Publication Number Publication Date
US3601090A true US3601090A (en) 1971-08-24

Family

ID=8652633

Family Applications (1)

Application Number Title Priority Date Filing Date
US834069A Expired - Lifetime US3601090A (en) 1968-07-16 1969-06-17 Continuous impregnation plant of cardboard or like support

Country Status (8)

Country Link
US (1) US3601090A (xx)
DE (1) DE1931029A1 (xx)
ES (1) ES368440A1 (xx)
FR (1) FR1582560A (xx)
GB (1) GB1270162A (xx)
NL (1) NL6910235A (xx)
OA (1) OA03068A (xx)
SE (1) SE359234B (xx)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5711806A (en) * 1996-03-13 1998-01-27 Harnden; Eric F. Printed circuit board processing apparatus
US5795405A (en) * 1996-03-13 1998-08-18 Eric F. Harnden Machine and method for processing of printed circuit boards by immersion in transversely flowing liquid chemical
CN107287802A (zh) * 2017-07-14 2017-10-24 浙江宇邦滤材科技有限公司 一种滤袋加工用浸渍设备中的浆料加热装置
CN107287802B (zh) * 2017-07-14 2024-06-07 浙江宇邦滤材科技有限公司 一种滤袋加工用浸渍设备中的浆料加热装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US545429A (en) * 1895-08-27 David trevor lewis
US2235824A (en) * 1937-09-23 1941-03-25 Buffalo Bolt Company Apparatus for pickling and liming ferrous articles
US3312326A (en) * 1965-08-23 1967-04-04 American Can Co Article orienting apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US545429A (en) * 1895-08-27 David trevor lewis
US2235824A (en) * 1937-09-23 1941-03-25 Buffalo Bolt Company Apparatus for pickling and liming ferrous articles
US3312326A (en) * 1965-08-23 1967-04-04 American Can Co Article orienting apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5711806A (en) * 1996-03-13 1998-01-27 Harnden; Eric F. Printed circuit board processing apparatus
US5795405A (en) * 1996-03-13 1998-08-18 Eric F. Harnden Machine and method for processing of printed circuit boards by immersion in transversely flowing liquid chemical
CN107287802A (zh) * 2017-07-14 2017-10-24 浙江宇邦滤材科技有限公司 一种滤袋加工用浸渍设备中的浆料加热装置
CN107287802B (zh) * 2017-07-14 2024-06-07 浙江宇邦滤材科技有限公司 一种滤袋加工用浸渍设备中的浆料加热装置

Also Published As

Publication number Publication date
SE359234B (xx) 1973-08-27
NL6910235A (xx) 1970-01-20
DE1931029A1 (de) 1970-02-26
OA03068A (fr) 1970-12-15
FR1582560A (xx) 1969-10-03
GB1270162A (en) 1972-04-12
ES368440A1 (es) 1971-05-01

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ONDULINE ASSET CORP., BOX 195, FREDERCKSBURG, VA.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GARDEN STATE PAPER COMPANY, INC.;REEL/FRAME:004386/0961

Effective date: 19841220

Owner name: ONDULINE SALES AND SERVICE CORP.

Free format text: MERGER;ASSIGNOR:OUDULINE ASSET CORPORATION;REEL/FRAME:004386/0965

Effective date: 19850103