EP0455354A2 - Appareil d'application d'une colle - Google Patents

Appareil d'application d'une colle Download PDF

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Publication number
EP0455354A2
EP0455354A2 EP91303048A EP91303048A EP0455354A2 EP 0455354 A2 EP0455354 A2 EP 0455354A2 EP 91303048 A EP91303048 A EP 91303048A EP 91303048 A EP91303048 A EP 91303048A EP 0455354 A2 EP0455354 A2 EP 0455354A2
Authority
EP
European Patent Office
Prior art keywords
adhesive
transfer roll
blade member
roll
convex portion
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.)
Ceased
Application number
EP91303048A
Other languages
German (de)
English (en)
Other versions
EP0455354A3 (en
Inventor
Raymond Hanson
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.)
USM Espana SA
Noxet UK Ltd
Original Assignee
USM Espana SA
British United Shoe Machinery 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 USM Espana SA, British United Shoe Machinery Ltd filed Critical USM Espana SA
Publication of EP0455354A2 publication Critical patent/EP0455354A2/fr
Publication of EP0455354A3 publication Critical patent/EP0455354A3/en
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D25/00—Devices for gluing shoe parts
    • A43D25/18—Devices for applying adhesives to shoe parts
    • A43D25/181—Devices for applying adhesives to shoe parts by rollers
    • 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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets

Definitions

  • This invention is concerned with improvements in or relating to adhesive-applying apparatus whereby a layer of moisture-curable adhesive in a molten state can be applied to a surface portion of a workpiece presented to an operating locality of the apparatus.
  • EP-A 0347736 comprising a cylindrical transfer roll arranged at the operating locality, together with heating means for heating the transfer roll, and drive means for effecting rotation of the transfer roll, a flexible blade member terminating in a straight edge which is held in line contact engagement with the surface of the transfer roll, the "upstream" (in terms of the direction of rotation of the transfer roll) face of said member being inclined at an acute angle to a plane which lies tangential to the surface of the transfer roll and passes through the line of contact with the blade member, and two wall elements arranged one at either side of the blade member and extending "upstream” therefrom and sealingly engaging with the transfer roll, thus to form with the blade member and the surface of the transfer roll a reservoir to which molten adhesive can be supplied from a supply thereof and in which it can be contained, the arrangement being such that as the transfer roll is caused to rotate a layer of molten adhesive, the thickness of which is determined by the flexible blade member, is formed on the surface of the transfer roll and carried thereby to the operating local
  • adhesive can be applied, where the surface to be coated has a degree of convexity e.g. the surface of the marginal portions of the bottom of a shoe, either up to and slightly over the edge where the roll is relatively soft, or, for a medium hardness of roll (which nevertheless allows some deformation) up to the edge, or, for a relatively hard roll, just short of the edge, the actual width of the applied adhesive depending upon the pressure applied by the operator in holding the surface against the roll.
  • a degree of convexity e.g. the surface of the marginal portions of the bottom of a shoe
  • the invention thus provides an adhesive-applying apparatus whereby a layer of moisture-curable adhesive in a molten state can be applied to a surface portion of a workpiece presented to an operating locality of the apparatus, said apparatus comprising an applicator block which is tapered and which provides a flexible blade member having an adhesive-guiding surface terminating at an applying edge, a transfer roll arranged at the operating locality, together with heating means for heating the transfer roll and drive means for effecting rotation thereof, said roll having a surface portion which the applying edge of the blade member forms a line contact engagement, and the adhesive supplying surface of the blade member constituting the "upstream" surface (in terms of the direction of rotation of the transfer roll), thereof, and two wall elements arranged one at either side of the blade member and extending "upstream” therefrom and sealingly engaging with the surface portion of the transfer roll, at opposite sides thereof, thus to form with the blade member and said surface portion a reservoir to which molten adhesive can be supplied from a supply thereof and in which it can be contained, wherein as the transfer roll
  • the deformability of the material of the convex portion of the transfer roll in terms of operator control is to be understood that the material will resist ready deformation under a light pressure such that the operator can readily control the deformation, but at the same time will not require excessive force to be applied by the operator such as again will lead to diminished control; rather the material is deformable under a range of pressures which lie within the competence of an operator throughout a working day and within his ready control.
  • a material having a Shore A hardness in the region of 50° has been found to be suitable for this purpose.
  • the thickness of the adhesive-layer can be pre-set, e.g. according to the type of material to which it is applied, and to this end preferably blade member control means is provided whereby the force holding the flexible blade member in engagement with the transfer roll can be varied, thus to vary the thickness of the layer of molten adhesive formed on the surface of the transfer roll.
  • the blade member control mean comprises a presser member which is engageable with the "downstream" (in terms of the direction of rotation of the transfer roll) face of the blade member adjacent the straight edge thereof and is movable in a direction towards or away from the transfer roll.
  • the molten adhesive may be supplied to the reservoir in any suitable manner but, as in the case of the apparatus described in EP-A 0347736, preferably the flexible blade member is formed with an internal passageway connected to an adhesive supply and opening into said "upstream" face of the blade member.
  • the blade member itself forms part of the adhesive supply system, and in particular forms the final part of that system.
  • the flexibility of the blade member, in which the final part is provided enables the cured adhesive readily to be removed. Such removal, moreover, is facilitated where the flexible blade member is made of a siicone rubber.
  • the convex portion of the transfer roll of the apparatus in accordance with the invention preferably has an outer surface of a material which is hard in relation to the deformable material of said portion and to which the adhesive exhibits low adhesion.
  • the material forming said outer surface is polyethylene and the deformable material is silicone rubber.
  • the wall elements by which the margins of the layer of adhesive transferred to the transfer roll are determined are preferably mounted in a carrier resiliently urged into engagement with the transfer roll, at opposite sides of the convex portion thereof; conveniently the presser member is also mounted on said carrier, for movement in a direction towards or away from the transfer roll as aforesaid. Furthermore, for facilitating access to the flexible blade member, conveniently the carrier is mounted for movement between an operative position, in which the wall elements lie at either side of the flexible blade member, and an out-of-the-way position.
  • any suitable means may be provided for heating the transfer roll, but one convenient form of such heating means comprises a pipe which is connected to a hot air source and by which hot air can be directed on to the surface of the transfer roll.
  • the pipe may be secured to the carrier, or indeed the carrier may be mounted on the pipe, the pipe itself being mounted for pivotal movement in a frame portion of the apparatus.
  • the apparatus now to be described is generally similar, except as hereinafter described, to the apparatus described in EP-A 0347736.
  • Said apparatus is thus suitable for use in the application of a layer of a moisture-curable adhesive in a molten state to a surface portion of a workpiece presented to an operating locality of the apparatus, and in particular, though not exclusively, for applying a layer of such adhesive to marginal portions of a lasted shoe bottom for the attachment of an outsole thereto.
  • the apparatus thus comprises an operating locality at which is arranged a transfer roll 12 and an applicator block or nozzle 14 providing a flexible blade member 16 by which adhesive can be applied, in a layer of controlled thickness, to the surface of the transfer roll 12.
  • the blade member 16 is flanked by two side wall elements 18, which operate to control the width of the layer of adhesive applied to the transfer roll 12.
  • the blade member 16 and wall elements 18 are so arranged in relation to the transfer roll 12 as to form a reservoir into which molten adhesive can be supplied, as will be hereinafter described, and in which it can be contained, the arrangement being such that, as the roll 12 rotates, a layer of molten adhesive, doctored by the blade member 16, is carried on the surface of the roll to the operating locality.
  • the transfer roll 12 comprises a core 20 of deformable material which is shaped to provide a central convex portion 20A and two outside portions 20B which cooperate with the wall portions 18. Covering the core, further, is an outer, adhesive-receiving, layer or skin 22 which is hard in relation to the hardness of the core 20 and to which adhesive has low adhesion.
  • Suitable materials for the core have been found to be silicone rubbers with a Shore A hardness in the region of 50°.
  • a suitable material for the outer skin 22 has been found to be polyethylene, and in particular polyethylene tubing which can be shrunk onto the core 20.
  • One such polyethylene is available from Hellermann Electric of Plymouth, Devon, England under the trade name "Helashrink".
  • the transfer roll 12 is constructed by mounting the core 20 on a tubular shaft 24 and securing washers 26 thereto, one at either side, whereafter the outer skin is shrunk over the core and washers.
  • a shaft 28 is provided, pivotally mounted on a frame portion 30 of the apparatus between an operative, horizontal, position and an out-of-the-way, loading, position, in which latter position the tubular shaft 24 of the roll 12 can be slid onto the shaft 28.
  • a drive shaft 32 Opposite the shaft 28, when in its operative position, is a drive shaft 32 which carries a sleeve 34 spring-urged towards the shaft 28 but retractable by hand.
  • the drive shaft 32 has, at its end, a diagonal plate-like projection which can be received in a correspondingly slotted end of the tubular shaft 24, thus to create a driving engagement between the shafts 24, 32, whereby the roll is driven.
  • the sleeve 34 which is retracted to allow the shaft 28 to reach its operative position, is released to hold the shaft in said position and thus hold the transfer roll 12 in operative position and in driving engagement with the drive shaft 32.
  • the drive shaft 32 is driven by a belt-and-pulley arrangement, including a belt 36, by means of a motor (not shown).
  • the transfer roll 12 is driven such that its forward surface portion, i.e. the surface portion closest to the operator, moves in a downward direction so that, in presenting the bottom of a shoe S to the roll, the operator moves the shoe in a generally straight line away from himself.
  • heating means is provided in the form of a pipe 42 through which hot air can be directed towards the surface of the roll.
  • the temperature of the air must be sufficient to maintain the adhesive molten but without creating damage to the outer skin 22 of the transfer roll, and it has been found that a temperature in the range 85 to 145 o C gives adequate results, an optimum temperature being in the order of 120 o C.
  • the nozzle 14 is disposed thereabove (see Fig. 2), and comprises a body 46 of silicone rubber having two faces 48, 50 inclined to one another with an apical angle of 70°, and forming therebetween an applying edge 52, which is held (as will be referred to hereinafter) against the surface of the convex portion of the transfer roll.
  • the "upstream" face 48 (in terms of the direction of the rotation of the roll 12) of the nozzle is concave about an axis which lies transversely of the applying edge 52. More particularly a notional line extending at the surface of the face 48 and parallel to said axis lies at an acute angle, to a plane extending tangentially to the surface of the transfer roll 12 at the point of contact between said surface and said notional line. Furthermore, the applying edge 52 is offset from the "top dead centre" of the transfer roll 12 by an angle of about 34° about the axis of rotation of the roll.
  • adhesive is supplied between the concave face 48 of the body 46 and the surface of the transfer roll 12 and forms a pool or reservoir "upstream" of the applying edge, which latter edge acts as a doctor blade by which a layer of adhesive of controlled thickness is applied to the surface of the roll.
  • the body 46 is formed with an internal passageway 54 which opens into the concave face 48 via a slot 56, through which adhesive can be supplied.
  • the hot air pipe 42 supports a carrier 82 for the two side wall elements 18, which are formed with arcuate engagement surfaces for sealingly engaging with the portions 20B of the surface of the transfer roll 12.
  • the pipe 42, and thus the carrier 82 are pivotal about a horizontal axis, thus to move the side wall elements 18 to an out-of-the-way position, when it is desired to gain access to the nozzle body 46.
  • the side wall elements 18 are spring-urged into engagement with the transfer roll surface.
  • the carrier is urged downwardly by engagement with two spring plungers 84 carried by a housing for the nozzle 14, and the carriage, through the wall elements 18, is maintained in its operative position by engagement of the wall elements with the portions 20B of the transfer roll.
  • the carrier 82 also supports a slide 88 on which in turn is supported a presser member 90 constituting blade control means of the apparatus.
  • the presser member engages the "downstream" face 50 of the body 46, adjacent, but slightly spaced from, the applying edge and urges said edge into line contact engagement with the portion 20A of the transfer roll surface. It will be appreciated that the force exerted by the said edge against the transfer roll surface will be dependent upon the position of the presser member 90 and this is adjustable by moving the slide 88 lengthwise of the carrier 82.
  • a rotary knob 92 is held captive in the slide and in threaded engagement with the carrier so that rotation of the rod moves the slide lengthwise relative to the carrier and thus serves to position the presser member 90 in a desired relationship with the body 46 of the nozzle.
  • the hardness of the nozzle also influences the thickness of the applied layer and a suitable hardness for the nozzle, in general use, has been found to be in the range 50 to 60 measured on the IRHD scale.
  • the speed at which he moves the workpiece surface should be approximately the same as the peripheral speed of the transfer roll 12. It is envisaged that an operator, operating normally, will move the shoe bottom at a speed equivalent to approximately 90 rpm roll speed (although the application of a consistent layer of adhesive to the surface of the transfer roll can be achieve at much higher roll speeds).
  • the speed of rotation of the roll should preferably therefore lie in the range 75 to 100 rpm; a speed of 80 rpm has been found acceptable in most cases.
  • the surface of the transfer roll 12 will be maintained at the appropriate operating temperature by blowing hot air through the pipe 42 thereagainst and thus the adhesive layer on the roll will be maintained, albeit for a limited period, in its uncured state ready for application.
  • a pool of adhesive will of course be contained within the reservoir formed by the surface of the roll, the concave face 48 of the flexible blade member 16 and the side wall elements 18, and this adhesive will be curing, albeit slowly.
  • a shoe bottom by operation of a treadle (not shown) adhesive is supplied through the internal passageway 54 of the nozzle body 46 to said pool and at the same time the operator presses the workpiece surface against the convex portion of the surface of the transfer roll and applies the layer of adhesive by moving the workpiece surface relative to the roll. At, or shortly before, the end of the application the operator releases the treadle whereupon the valve 80 reverts to its closed position.
  • the operator is able, by applying the desired, but readily controllable, pressure to press the workpiece surface against said surface, to cause sufficient deformation of the core to take place such that the desired amount of surface contact is achieved between the transfer roll and the workpiece surface to give the desired width of applied adhesive coating to the latter.

Landscapes

  • Coating Apparatus (AREA)
EP19910303048 1990-05-03 1991-04-05 Adhesive-applying apparatus Ceased EP0455354A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9009974 1990-05-03
GB909009974A GB9009974D0 (en) 1990-05-03 1990-05-03 Adhesive-applying apparatus

Publications (2)

Publication Number Publication Date
EP0455354A2 true EP0455354A2 (fr) 1991-11-06
EP0455354A3 EP0455354A3 (en) 1993-04-14

Family

ID=10675422

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910303048 Ceased EP0455354A3 (en) 1990-05-03 1991-04-05 Adhesive-applying apparatus

Country Status (4)

Country Link
EP (1) EP0455354A3 (fr)
JP (1) JPH04227883A (fr)
CA (1) CA2040362A1 (fr)
GB (1) GB9009974D0 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2770752A1 (fr) * 1997-11-13 1999-05-14 Seb Sa Distributeur de cire a epiler thermofusible
CN119657400A (zh) * 2024-12-11 2025-03-21 清华大学 异形件侧边缘自适应刮腻子装置及方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020056394A (ko) * 2000-12-29 2002-07-10 윤영수 자동 염색약물 코팅 마무리 장치
CN116268714A (zh) * 2023-04-14 2023-06-23 浙江旭达鞋业有限公司 一种鞋加工用打胶装置及其打胶方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1195640B (de) * 1963-04-24 1965-06-24 Walter Ullrich Walze zum Auftragen von Klebstoff auf unebene Werkstuecke, wie Schuhsohlen
EP0244547A1 (fr) * 1986-05-06 1987-11-11 Lanfranco Anzani Machine automatique à têtes multiples interchangeables pour la fabrication en masse de chaussures
GB8814689D0 (en) * 1988-06-21 1988-07-27 British United Shoe Machinery Adhesive-applying apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2770752A1 (fr) * 1997-11-13 1999-05-14 Seb Sa Distributeur de cire a epiler thermofusible
WO1999025217A1 (fr) * 1997-11-13 1999-05-27 Seb S.A. Distributeur de cire a epiler thermofusible
US6076984A (en) * 1997-11-13 2000-06-20 Seb S.A. Hot melt depilatory wax dispenser
CN119657400A (zh) * 2024-12-11 2025-03-21 清华大学 异形件侧边缘自适应刮腻子装置及方法

Also Published As

Publication number Publication date
CA2040362A1 (fr) 1991-11-04
EP0455354A3 (en) 1993-04-14
GB9009974D0 (en) 1990-06-27
JPH04227883A (ja) 1992-08-17

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