US 4,328,061 A · Apparatus for depositing adhesive strips

Abstract

In an apparatus for and method of depositing adhesive strips, a ribbon including a layer of adhesive is directed along a predetermined input path. In the first two embodiments, the ribbon is engaged between a measuring roller and a driven roller responsive thereto, and fed into positioning structure. The material on which the adhesive is to be deposited is located between the positioning structure and a head, which can be heated. Separation means is provided adjacent the input path for selectively separating at least a portion of the ribbon to form adhesive strips, after which the strip of adhesive, the material and the head are engaged to effect deposition of the activated adhesive strip onto the material. In a third embodiment, the ribbon is engaged by a feed pulley and directed toward a revolving wheel rotatably interconnected with the feed pulley. The wheel, which can be heated, receives and transports the ribbon along a portion of the periphery thereof to press the activated adhesive into engagement with the adjacent material. Both the feed pulley and the wheel are mounted on a frame which is rotatably supported so that strips of adhesive can be applied in linear or curvilinear fashion. If desired, separation means can be provided between the feed pulley and the wheel for selectively separating at least a portion of the ribbon to form adhesive strips of predetermined lengths.

Claims41

Dependent claims

Apparatus for depositing adhesive strips on a length or piece of material, which comprises:

means for directing a ribbon including a layer of activatable adhesive along a predetermined input path;
means for measuring the length of ribbon directed along the input path;
said directing means being responsive to the measuring means to advance predetermined lengths of ribbon along the input path;
cutter means located along the input path beyond the directing means and responsive to the measuring means for separating at least the adhesive layer of the ribbon to provide adhesive strips having predetermined lengths;
means located along the input path beyond the cutter means for positioning the ribbon adjacent the material onto which the adhesive is to be deposited;
means located along the input path for selectively engaging the adhesive ribbon and the material and activating the adhesive to deposit the strip of adhesive onto the material, said engaging means being movable with respect to the material during deposition of a strip of adhesive material so that linear or curved strips of adhesive can be deposited onto the material;
and
wherein the directing and measuring means comprise a driven pulley connected to a measuring transducer whereby the pulley functions simultaneously to feed and to measure the ribbons fed along the input path.

5 more elements

An applicator for depositing an activatable adhesive on a piece of material, comprising:

a frame disposed above said material and rotatable with respect thereto;
an applicating wheel rotatably supported on said frame and engagable with said material in rolling relationship therealong and including activating means for activating the adhesive, the adhesive being thermally activated and said activating means comprising heating means heating the periphery of said applicating wheel, said heating means being mounted within said applicating wheel, said applicating wheel having an annular applicator portion for engaging said material, said heating means comprising a circular heating band enclosing an electrical resistance means, said applicating wheel further having insulator material on either side of said applicator portion and heating band to prevent undesirably high temperatures in components other than desired applicator portions;
and
reception means associated with said frame for receiving and guiding an adhesive bearing ribbon along a predetermined input path to the periphery of said wheel for interengagement between said wheel and said material during said rolling therealong to deposit adhesive on said material, said frame being rotatable with respect to said material during deposition of the adhesive so that the adhesive can be deposited along a preselected linear or curvilinear path on said material.

1 more element

An applicator for depositing adhesive on a piece of material, comprising:

a frame disposed above said material;
an applicating wheel rotatably supported on said frame and engagable with said material in rolling relation therealong;
reception means associated with said frame for receiving and guiding an adhesive bearing ribbon along a predetermined input path to the periphery of said wheel for interengagement between said wheel and said material during said rolling therealong to deposit adhesive on said material;
said frame being rotatable about a generally vertical axis, and said wheel rotating about a generally horizontal axis substantially parallel to the general plane of said material therebelow, whereby said applicator is steerable with respect to said material to selectively provide a variably directed adhesive deposition path;
said adhesive being thermally activated;
activating means comprising heating means heating the periphery of said applicating wheel for activating said adhesive for adhesion to said material, said heating means being mounted within said applicating wheel;
said heating means comprising electrical resistance means and said activating means comprising commutation means including frame mounted brush means engaging wheel mounted brush means connected to said resistance means;
said applicating wheel being rotatably mounted to said frame by a hollow shaft having an opening through a side wall thereof, said wheel mounted brush means being secured to said shaft, said activating means including means connected to terminals of said electrical resistance means and extending into said shaft through said opening to said last mentioned brush means;
and
said heating means comprising a circular heating band enclosing said electrical resistance means and secured within said applicator wheel by a clamp ring, and an insulator plate and insulating disk sandwiching therebetween said heating band and said clamp ring, said plate and said disk being comprised of insulative material to prevent undesirably high temperatures in components other than desired applicator portions, and a pair of hubs mounted to said shaft and between which are secured said plate and disk, said shaft being rotatably mounted at its ends to said frame.

7 more elements

An applicator for depositing an activatable adhesive on a piece of material, comprising:

a frame disposed above said material and rotatable with respect thereto;
an applicating wheel rotatably supported on said frame and engagable with said material in rolling relation therewith and including activating means for activating the adhesive;
a reception pulley rotatably supported on said frame above said applicating wheel for receiving and guiding an adhesive bearing ribbon to the periphery of said applicating wheel for interengagement between said applicating wheel and said material during said rolling to deposit adhesive on said material, said frame being rotatable with respect to said material during deposition of the adhesive so that the adhesive can be deposited along a preselected linear or curvilinear path on said material;
and
a start/stop assembly positioned on said frame adjacent said reception pulley, said start/stop assembly having a start position permitting advancement of said ribbon therethrough into engagement with said reception pulley, and having a stop position positively stopping ribbon advancement without carry-through inertia effect of said reception pulley, said start/stop assembly including feed means engagable with said reception pulley in said start position for positive advancement of said ribbon, and wherein said start/stop assembly includes stop means engaging said ribbon in said stop position, and wherein actuation of said start/stop assembly from said start to said stop positions simultaneously disengages said feed means and engages said stop means to thus instantaneously halt advancement of said ribbon, said start/stop assembly comprising an inlet member engaging a stop member in said stop position to block the ribbon thereagainst.

2 more elements

An applicator for depositing adhesive on a piece of material, comprising:

a frame disposed above said material;
an applicating wheel rotatably supported on said frame and engagable with said material in rolling relation therewith;
a reception pulley rotatably supported on said frame above said applicating wheel for receiving and guiding an adhesive bearing ribbon to the periphery of said applicating wheel for interengagement between said applicating wheel and said material during said rolling to deposit adhesive on said material;
drive means mounted to said frame motively driving said applicating wheel for advancing said ribbon, said drive means comprising interconnection means driving said reception pulley and said applicating wheel;
a start/stop assembly positioned on said frame adjacent said reception pulley, said start/stop assembly having a start position permitting advancement of said ribbon therethrough into engagement with said reception pulley, and having a stop position positively stopping ribbon advancement without carry-through inertia effect of said reception pulley, said start/stop assembly including feed means engagable with said reception pulley in said start position for positive advancement of said ribbon, and including stop means engaging said ribbon in said stop position, actuation of said start/stop assembly from said start to said stop positions simultaneously disengaging said feed means and engaging said stop means to thus instantaneously halt advancement of said ribbon;
and
said start/stop assembly comprising an inlet member engaging a stop member in said stop position to block said ribbon thereagainst, and carrying a roller rotative mounted thereto which roller engages said reception pulley and said start position advancing ribbon therebetween.

4 more elements

An applicator for depositing an activatable adhesive on a piece of material, comprising:

a frame disposed above said material and rotable with respect thereto;
an applicating wheel rotatably supported on said frame and engagable with said material in rolling relation therewith and including activating means for activating the adhesive;
reception means associated with said frame for receiving and guiding an adhesive bearing ribbon along a predetermined input path to the periphery of said wheel for interengagement between said wheel and said material during said rolling to deposit adhesive on said material, said frame being rotatable with respect to said material during deposition of the adhesive so that the adhesive can be deposited along a preselected linear or curvilinear path on said material;
cutter means disposed between said reception means and said applicating wheel for severing said adhesive;
and
a start/stop assembly positioned on said frame adjacent said reception means, said start/stop assembly having a start position permitting advancement of said ribbon therethrough into engagement with said reception means, and having a stop position positively stopping ribbon advancement without carry-through inertia effects of said reception means, said start/stop assembly including feed means engagable with said reception means in said start position for positive advancement of said ribbon, and wherein said start/stop assembly includes stop means engaging said ribbon in said stop position, and wherein actuation of said start/stop assembly from said start to said stop positions simultaneously disengages said feed means and engages said stop means to thus instantaneously halt advancement of said ribbon, said start/stop assembly comprising an inlet member engaging a stop member in said stop position to block said ribbon thereagainst.

3 more elements

Dependencies are inferred from the claim text.

Apparatus for depositing adhesive strips

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Apparatus for depositing adhesive strips

Life of this patent

Abstract

Claims41