Patent Application
20090283219
The present invention relates to an adhesive applying apparatus for applying an adhesive compound either on one or two fabric pieces, in different operating manners, before bonding the fabric pieces by the adhesive compound.
As is known, in the garment field are increasingly required adhesive sealed cloth articles, instead of conventionally seamed garments.
However, the prior art does not provide apparatus and methods adapted to easily perform complex fabric piece assembling or bonding operations, by a quick and simple fabric piece sealing or bonding technique; on the contrary very long and expensive manual bonding operations, providing qualitatively poor results are usually required.
Applicant is not aware of presently available machines adapted to properly preparing cloth or garment articles to be sealed to one another.
Accordingly, the aim of the present invention is to provide such an apparatus or machine adapted to properly prepare fabric pieces for performing thereon subsequent fabric piece sealing or “welding” operations.
Within the scope of the above mentioned aim, a main object of the invention is to provide such an apparatus adapted to deposit a preparing or starting adhesive on either one or two fabric pieces, by different depositing methods, before assembling the fabric pieces by adhesive compounds or means.
Another object of the present invention is to provide such an adhesive applying apparatus or machine which is very reliable from an operation standpoint, and which, in particular, is adapted to quickly and easily perform different types of fabric piece processing operations, depending on the types of the fabric material to be sealed.
Yet another object of the present invention is to provide such an apparatus or machine which, owing to its specifically designed constructional features, is very reliable and safe in operation.
According to one aspect of the present invention, the above mentioned aim and objects, as well as yet other objects, which will become more apparent hereinafter, are achieved by an adhesive applying apparatus for applying an adhesive compound either to one or to two fabric pieces, for preassembling said fabric pieces before thermosealing said fabric pieces, characterized in that said apparatus comprises means for supplying and applying, by interexchangeable guide means, an adhesive compound supporting strip to said one or two fabric pieces.
Further characteristics and advantages of the present invention will become more apparent hereinafter from the following detailed disclosure of a preferred, though not exclusive, embodiment of the invention, which is illustrated, by way of an indicative, but not limitative example, in the accompanying drawings, where:
With reference to the number references of the above mentioned figures, the apparatus according to the present invention, which has been generally indicated by the reference number 1, comprises a roll bearing assembly 3, thereon is wound an adhesive roll or coil including an adhesive compound supported by a paper or plastic strip, as generally indicated by the reference number 2.
Said adhesive strip 2 is held under tension, after having contacted a roller 5, by a pair of tension wheels operating as a friction clutch, and contacting a surface of a bearing plate 6.
In the figures only one of the two wheels, that is the top wheel, indicated by the reference number 4, has been shown.
Said adhesive strip is conveyed onto a heated guide 7, preferably provided with a chromium and a Teflon coated surface, thereby providing said heated guide 7 with good sliding properties, said heated guide being adapted to resist against operating temperatures from about 100° C. to 250° C., and comprising preferably an electrically heated guide, including a sensing probe and an electric heating resistance, and being axially driven by a driving knob 8, which can be rotatively operated to perform a micrometric type of adjustment through a coil spring, designed for recovering possible operating clearances.
The two adhesive strip 2 driving wheels being supplied therebetween with the fabric piece or pieces.
According to one aspect of the invention, the two wheels are driven by separated driving units, thereby rotating either with equal or different peripheral speeds, to provide a differential effect.
Moreover, said two wheels are coated by a silicone electrically conductive compound, to prevent electrostatic charges from accumulating thereon.
More specifically, said wheels may have either a smooth or textured surface construction, depending on a pattern to be applied to the fabric pieces.
Of said wheels, the bottom wheel, not visible in the figures, rigidly supports thereon a rotary counter-blade element which, in combination with a swingably driven top knife 9, performs lateral trimming operations to remove exceeding fabric material, as necessary.
The top wheel 4, on the other hand is adapted to swing about a lateral or side pin, and can be raised to provide an adjustable pressure against the fabric material, the raising and lowering movement of the top wheel being driven by a pneumatic piston 10.
The inventive apparatus further comprises a second pneumatic piston 11, driving a knife element operating as a guillotine blade for cutting the adhesive strip 2, at the end of the adhesive strip applying operations, carried out by advantageously interexchangeable operating devices, which can be supported by a single supporting assembling, shown by the reference number 13 in
Said plate-like element 13 comprises moreover an end pin 15, to which is coupled a rotary portion 16 including a knob 17 and a plurality of clamping holes 33 for clamping therein said several operating devices.
As is schematically shown in
The cross-wise adjustable guide 18 comprises a bracket portion 181 including a notch 182 for clamping by clamping screws 133 said bracket portion to the support 13.
The bracket portion 181 extends on a curved blade- portion 183, of substantially trapezium configuration, including a top blade element 184.
As is schematically shown in
The adjustable guide 19 comprises a bracket portion 191 including a notch 192 for clamping said bracket by clamping screws 133 to the supporting assembly 13.
The bracket portion 191 extends to an elongated blade portion 193, of substantially oval configuration, including a top blade element 194 cross-wise extending in the form of a loop.
More specifically, said guide 20 comprises a bracket portion 201, including a notch 202 for clamping by the clamping screws 133 said bracket to the supporting assembly 13.
Said bracket portion 201 extends to a portion including three blade elements 203, of substantially rectangular configuration, therebetween a stop abutment 204, which can be advantageously longitudinally adjusted, is arranged.
Said guide allows, owing to its offset configuration, to introduce, between the two top and middle blade elements, a fabric piece 110, at a fixed trimming position, and, between the middle and top blade elements, a top fabric piece 100.
Said second fabric piece being arranged at a position offset from the first fabric piece, by said top abutment 204.
The bracket portion 211 extends to an elongated blade portion 213, of substantially oval configuration, including a top blade element 214 cross-wise extending and forming a loop arrangement, for forming a hem portion 102 on the top fabric piece 100.
The second component of said guide 21 comprises a rectangular plate-like element 215, which can be adjustably clamped, at the bottom thereof, to the first component, to provide the desired offset relationship between the two fabric pieces.
As is schematically shown in
In particular, the bottom fabric piece 110 is offset from the top fabric piece 100 by screwing off the clamping screws 133 for releasing the bottom plate-like element 215, thereby easily adjusting the offset of the bottom and top fabric pieces.
The bracket portion 221 extends to an elongated blade portion 223, of a substantially oval configuration, including a top blade element 224 extending cross-wise and forming a loop arrangement, forming a fabric hem portion 112 on the bottom fabric piece 110.
The second guide component comprises a plate-like element 225 which can be adjustably clamped on the top of the first component, thereby providing a desired offset relationship of the two fabric pieces.
As is schematically shown in
Thus, it is possible to adhesively connect a flat top fabric piece 100 to a hemmed upward turned bottom fabric piece 110.
It has been found that the invention fully achieves the intended aim and objects.
In fact, the invention provides an apparatus adapted to apply either to one or two fabric pieces an adhesive compound strip coupled to a silicone processed paper support, or to a plastic material support, which adhesive compound strip may have a variable width and thickness, the adhesive compound being selected depending on the fabric material to be assembled and thermosealed.
The inventive apparatus allows to apply an adhesive compound either to a fabric piece or to two fabric pieces, to preassemble said pieces before thermosealing them.
In practicing the invention, the used materials, as well as the contingent size and shapes, can be any, according to requirements.
| Number | Date | Country | Kind |
|---|---|---|---|
| MI2008A 000884 | May 2008 | IT | national |
