GB2093737A - Paste applicator - Google Patents

Paste applicator Download PDF

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Publication number
GB2093737A
GB2093737A GB8105807A GB8105807A GB2093737A GB 2093737 A GB2093737 A GB 2093737A GB 8105807 A GB8105807 A GB 8105807A GB 8105807 A GB8105807 A GB 8105807A GB 2093737 A GB2093737 A GB 2093737A
Authority
GB
United Kingdom
Prior art keywords
web
roller
paste
contact
spots
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
GB8105807A
Other versions
GB2093737B (en
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.)
DRG UK Ltd
Original Assignee
DRG UK Ltd
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 DRG UK Ltd filed Critical DRG UK Ltd
Priority to GB8105807A priority Critical patent/GB2093737B/en
Publication of GB2093737A publication Critical patent/GB2093737A/en
Application granted granted Critical
Publication of GB2093737B publication Critical patent/GB2093737B/en
Expired legal-status Critical Current

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • 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
    • D21H5/0005—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating
    • D21H5/0025—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating by contact with a device carrying the treating material

Landscapes

  • Coating Apparatus (AREA)

Abstract

Spots of paste are applied to a moving web (1), by means of a cam roller (2) over which the web (1) is passed and an applicator (5) located adjacent the region of contact of the web (1) with the roller (2), the cam roller (2) having at least one projection (6) from its surface such that when the projection is brought into contact with the web (1) by rotation of the cam roller (2), the web (1) is temporarily urged into contact with the applicator (5) to cause the application of the paste to the surface of the web (1). <IMAGE>

Description

SPECIFICATION Device for applying paste This invention relates to devices for applying paste or other liquids or viscous substances to a moving web of paper or other material and is concerned more particularly with the application of spots of such liquids or substances to a relatively quickly moving web where the difficulty arises of the inertia of components used to apply the liquid or subtance where it is necessary to move these components quickly towards and away from the web.
It is an object of the present invention to alleviate the above difficulty.
The present invention consists in a device for applying spots of paste to a moving web, which inc!udes a cam roller over which the web is passes and an applicator located adjacent the region of contact of the web with the roller, the cam roller having at least one projection from its surface such that when the projection is brought into contact with the web by rotation of the cam roller, the web is temporarily urged into contact with the applicator to cause the application of a liquid or viscous substance to the surface of the web.
Preferably, the projection takes the form of a roller inset in the surface of the cam roller and freely mounted for rotation about an axis parallel to the axis of the cam roller.
In carrying the invention into effect according to one convenient mode by way of example, the accompanying drawing shows diagrammatically a device for applying spots of paste to a relatively fast moving web of paper indicated as 1 and shown travelling generally upwardly in the drawing.
The web 1 passes over the surface of a cam roller 2 which is rotated in the direction of arrow 3 and which has inset into its surface a free running roller 4 whose surface is just proud of the surface of roller 2 and is mounted for rotation about an axis parallel to the axis of roller 2.
Each time the roller 4 is brought into contact with the web 1, the region of contact with the web is displaced (to the left) into contact with the point of a paste pen or applicator 5 having a spring-loaded ball point to cause a spot of paste to be applied to the surface of the web 1 on the other side from roller 4. Whilst the roller 4 is in contact with the web it will be rotated relatively to the roller 2 in the direction shown by arrow 6.
The roller 2 is driven at a speed of rotation such that its peripheral speed is less than the linear speed of the web 1 passing over it and such that the roller 4 is brought into contact with the web with the web with a frequency which in relation to the linear speed of the web ensures that spots of paste are distributed along the length of the web with the desired spacing.
A number of paste pens 5 are mounted on a common manifold 7 through which paste is supplied to the pens 5, the axis of the manifold being parallel to the axis of the roller 2, so that in use each time roller 4 contacts the web a series of spots of paste are deposited across the width of the web.
The ends of the manifold 7 are mounted in slots in a frame (not shown) and are spring loaded to permit the spacing between the tips of the pens and the surface of roller 2 to be adjusted by rotation of a cam 8. Adjustment of the pens 5 towards the web 1 will cause the spring-loaded ball points to be held operated for a longer period and thus longer spots of paste to be deposited.
The above arrangement has the advantage that spots of paste of the desired size may be deposited upon the web with accuracy despite the facet that the web is moving relatively quickly and may require the application of paste for as short a period as say 6 milliseconds. This may be achieved since no component having high inertia has to be moved from the rest.
The apparatus may be used to apply spots of paste for inter-ply pasting, to produce a multi-ply web, although the spots may be applied for other purposes.
1. A device for applying spots of paste to a moving web, which includes a cam roller over which the web is passed and an applicator located adjacent the region of contact of the web with the roller, the cam roller having at least one projection from its surface such that when the projection is brought into contact with the web by rotation of the cam roller, the web is temporarily urged into contact with the applicator to cause the application of a liquid or viscuous substance to the surface of the web.
2. A device as claimed in claim 1, wherein the projection is in the form of a roller inset in the surface of the cam roller and mounted for rotation about an axis parallel to to the axis of the cam roller.
3. A device as claimed in claim 1 or 2, wherein the cam roller is driven so that at the region of contact the surface of the cam roller is moving in the same direction as the web but a slower speed.
4. A device as claimed in claim 1, 2 or 3, wherein the applicator is in the form of a pen having a spring-loaded ball point.
5. A device as claimed in claim 4 wherein a supply of liquid or viscuous substance is fed to a number of pens through a common manifold.
6. A device as claimed in any one of the preceding claims, wherein means are provided for adjusting the distance between the tip of the or each applicator and the surface of the cam roller and thereby adjusting the duration
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (7)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Device for applying paste This invention relates to devices for applying paste or other liquids or viscous substances to a moving web of paper or other material and is concerned more particularly with the application of spots of such liquids or substances to a relatively quickly moving web where the difficulty arises of the inertia of components used to apply the liquid or subtance where it is necessary to move these components quickly towards and away from the web. It is an object of the present invention to alleviate the above difficulty. The present invention consists in a device for applying spots of paste to a moving web, which inc!udes a cam roller over which the web is passes and an applicator located adjacent the region of contact of the web with the roller, the cam roller having at least one projection from its surface such that when the projection is brought into contact with the web by rotation of the cam roller, the web is temporarily urged into contact with the applicator to cause the application of a liquid or viscous substance to the surface of the web. Preferably, the projection takes the form of a roller inset in the surface of the cam roller and freely mounted for rotation about an axis parallel to the axis of the cam roller. In carrying the invention into effect according to one convenient mode by way of example, the accompanying drawing shows diagrammatically a device for applying spots of paste to a relatively fast moving web of paper indicated as 1 and shown travelling generally upwardly in the drawing. The web 1 passes over the surface of a cam roller 2 which is rotated in the direction of arrow 3 and which has inset into its surface a free running roller 4 whose surface is just proud of the surface of roller 2 and is mounted for rotation about an axis parallel to the axis of roller 2. Each time the roller 4 is brought into contact with the web 1, the region of contact with the web is displaced (to the left) into contact with the point of a paste pen or applicator 5 having a spring-loaded ball point to cause a spot of paste to be applied to the surface of the web 1 on the other side from roller 4. Whilst the roller 4 is in contact with the web it will be rotated relatively to the roller 2 in the direction shown by arrow 6. The roller 2 is driven at a speed of rotation such that its peripheral speed is less than the linear speed of the web 1 passing over it and such that the roller 4 is brought into contact with the web with the web with a frequency which in relation to the linear speed of the web ensures that spots of paste are distributed along the length of the web with the desired spacing. A number of paste pens 5 are mounted on a common manifold 7 through which paste is supplied to the pens 5, the axis of the manifold being parallel to the axis of the roller 2, so that in use each time roller 4 contacts the web a series of spots of paste are deposited across the width of the web. The ends of the manifold 7 are mounted in slots in a frame (not shown) and are spring loaded to permit the spacing between the tips of the pens and the surface of roller 2 to be adjusted by rotation of a cam 8. Adjustment of the pens 5 towards the web 1 will cause the spring-loaded ball points to be held operated for a longer period and thus longer spots of paste to be deposited. The above arrangement has the advantage that spots of paste of the desired size may be deposited upon the web with accuracy despite the facet that the web is moving relatively quickly and may require the application of paste for as short a period as say 6 milliseconds. This may be achieved since no component having high inertia has to be moved from the rest. The apparatus may be used to apply spots of paste for inter-ply pasting, to produce a multi-ply web, although the spots may be applied for other purposes. CLAIMS
1. A device for applying spots of paste to a moving web, which includes a cam roller over which the web is passed and an applicator located adjacent the region of contact of the web with the roller, the cam roller having at least one projection from its surface such that when the projection is brought into contact with the web by rotation of the cam roller, the web is temporarily urged into contact with the applicator to cause the application of a liquid or viscuous substance to the surface of the web.
2. A device as claimed in claim 1, wherein the projection is in the form of a roller inset in the surface of the cam roller and mounted for rotation about an axis parallel to to the axis of the cam roller.
3. A device as claimed in claim 1 or 2, wherein the cam roller is driven so that at the region of contact the surface of the cam roller is moving in the same direction as the web but a slower speed.
4. A device as claimed in claim 1, 2 or 3, wherein the applicator is in the form of a pen having a spring-loaded ball point.
5. A device as claimed in claim 4 wherein a supply of liquid or viscuous substance is fed to a number of pens through a common manifold.
6. A device as claimed in any one of the preceding claims, wherein means are provided for adjusting the distance between the tip of the or each applicator and the surface of the cam roller and thereby adjusting the duration of operation of the applicator and thus length of the deposited spots.
7. A device for applying spots of paste to a moving web substantially as described with reference to the accompanying drawing.
GB8105807A 1981-02-24 1981-02-24 Paste applicator Expired GB2093737B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8105807A GB2093737B (en) 1981-02-24 1981-02-24 Paste applicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8105807A GB2093737B (en) 1981-02-24 1981-02-24 Paste applicator

Publications (2)

Publication Number Publication Date
GB2093737A true GB2093737A (en) 1982-09-08
GB2093737B GB2093737B (en) 1984-01-18

Family

ID=10519930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8105807A Expired GB2093737B (en) 1981-02-24 1981-02-24 Paste applicator

Country Status (1)

Country Link
GB (1) GB2093737B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2402091A1 (en) * 2010-06-22 2012-01-04 Ortho-Clinical Diagnostics, Inc. An apparatus for slot die setup and control during coating

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2402091A1 (en) * 2010-06-22 2012-01-04 Ortho-Clinical Diagnostics, Inc. An apparatus for slot die setup and control during coating
US8297221B2 (en) 2010-06-22 2012-10-30 Ortho-Clinical Diagnostics, Inc. Apparatus for slot die setup and control during coating
US8821960B2 (en) 2010-06-22 2014-09-02 Ortho-Clinical Diagnostics, Inc. Apparatus for slot die setup and control during coating
RU2573485C2 (en) * 2010-06-22 2016-01-20 Орто-Клиникал Дайэгностикс, Инк. Flat die mount and control over coat application

Also Published As

Publication number Publication date
GB2093737B (en) 1984-01-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee