WO2018090115A1

WO2018090115A1 - Release device for sheets of continuous film of the type used for baling an agricultural crop and method for using the release device

Info

Publication number: WO2018090115A1
Application number: PCT/BR2017/050338
Authority: WO
Inventors: Eduardo De Almeida
Original assignee: Eduardo De Almeida
Priority date: 2016-11-16
Filing date: 2017-11-08
Publication date: 2018-05-24
Also published as: BR102016026733A2

Abstract

More precisely, the present invention is based on the use of multiple sheets of plastics films (10a) and (10b) which, mounted in series and adjacent to one another, form a continuous unit making up a feed roll (R) of the type used in harvesters (CT) for baling (F) agricultural crops (CG) such as cotton, hay and the like; each sheet (10a) and (10b) measures preferably 7 m and each sheet has one adhesive surface (S1) and another non-adhesive surface (S2); between the adhesive (S2) distal end (11a) of the sheet (10a) and the non-adhesive (S1) proximal end (11b) of the adjacent sheet (10b) an intermediate element or release device (100), called an 'interline', is used, which is designed to allow each pair of adjacent sheets (10a) and (10b) to be fixed together and thus to allow the release of one sheet (10a) or (10b) at a time when baling (F) of a certain volume of agricultural produce (CG), already compacted inside the harvester (CT), is required.

Description

"RELEASE DEVICE FOR TYPE CONTINUOUS FILM BLADES APPLIED FOR AGRICULTURAL CULTIVATION BALING AND METHOD OF APPLICATION OF THE RELEASE DEVICE".

CAM TECHN I CO N I NVENTION

[001] The present invention relates to a new continuous film slide release device of the type applied to agricultural baling and method of applying the release device, more precisely to a device based on overlapping the ends of the plastic blades that make up the continuous film, providing between these ends, an 'interline' that joins them, but allows the release of the blade that is pulled by the equipment in relation to the other immediately adjacent blade; the released plastic blade proceeds to bale winding; These blades make up rollers that feed harvesting machines such as cotton, hay and others.

I nvention h istric

[002] As is well known, farmers who grow baled crop products such as cotton (down), hay, cane straw and others should plan and choose which type of bale is best for their harvest, ie. whether they will be small square, round (various sizes) or large square (also various sizes) bales. Once the type of bale has been chosen, the farmer can choose the make and model of the baler that best produces that particular bale dimension.

[003] It is known that a high cost and extremely important step in the cotton production process, for example, is the harvest, since, being mismanaged, it can cause qualitative and quantitative losses in the final product.

[004] Harvesting can be manual (for small producers) or it can be mechanical. For the mechanical harvesting of cotton, two types of conventional machines are known: the picker, which only removes the cotton seed and the stripper harvester, with pulley system, which removes whole bolls, the bushes and the enclosures (EMBRAPA, 2003).

[005] The harvesting system which already prepares packing in bales and later releases these modules in the field is adopted in various countries, including some Brazilian regions. This baling system is made by harvesters that compress a certain volume of cotton down into a cylindrical shape and then, just inside the machine, wrap the surface of the cylindrical roll through a plastic film. Then the machine opens and releases the burden to the field. An example of this type of harvester can be viewed in US4553378 (John Deere), US5349806 (M&W Gear Company) or US5598690 (New Holland North America, Inc.). As said, the modules (bales) remain in the field (open) to be used in accordance with the demand presented by the plant.

[006] The plastic film used on these (and other) harvester machines presents constructive variations mainly related to the release (disconnection) medium between one film and another that makes up the wrapper roll dedicated to each bale. For example, patent document PI0511659-7 the TAMA Plastic ^® now presents a solution based on the bending of a "Z". The mentioned document states that the films or wraps that make up the harvester feed roll provide for a system called "Z-Lock" ^® , formed by multiple layers and which has the function of joining the end of an individual part of the film (Fl) to another subsequent film (F2) from a roll (not shown) and which, with each application to a bale, said ends are peeled apart, making the next portion ready for use on another bale. The "Z-Lock" ^{® system} comprises folding and multilayer, being a first layer with adhesive (A), a second layer with fold (V) and adhesive (B), a third (releasable) layer of silicone and a fourth layer. substrate, for example on paper.

In fact, all rollers used in these types of harvester use the same principle of rollers that release film blades to wrap the bale, the differences boil down to the release medium (layered folding) arranged between one substrate and another. .

[008] This type of 'release' between one substrate and another is structurally based on folding and multilayer found in other patent documents, such as US5591521 (NITTO DENKO CORP.), which deals with pressure sensitive "Z" shaped adhesive tapes applied to absorbent articles, or DE102006037852 (MORENO HORN) which deals with packaging film, which provides layers joined by a release adhesive during handling in the final packaging form.

It is therefore right to say that this type of multi-film roll solution with release from "2" or equivalent folding is evolving technically in order to optimize several points still lacking, especially in the sector. agricultural crops, such as media, systems or devices that can improve bale wrapping procedures by ensuring better mechanical conditions within the harvester, or improving the media or separation system between the blades of each film, reducing roll costs, among other points. OBJECTIVES OF THE INVENTION

[010] It is an object of the present invention to provide a novel release device for continuous film substrates or film blades of the type to be inserted into a harvester specially designed for harvesting and baling agricultural crops such as cotton or other similar. The present release device for continuous film substrates or slides mainly innovates in terms of constructive simplicity, while maintaining the guarantee of release for wrapping and closing the bale inside the harvester and later discarding it, or ie positioning on the ground in the appropriate field or location.

[011] It is another objective to present a continuous film slide release device which is lower cost than conventional ones, since there is no folding on any blade but only overlapping one end over the other, providing, between them a band or 'interline' provided with adhesive and / or silicone cross sections, making this interline to act as the attachment and release element between one substrate and another.

Each said roll has from 15 to 25 blades, where each blade is preferably 7 meters. Every blade has an adhesive surface and another non-adhesive surface. Between the sticky edge of a blade and the The non-adhesive end of the other subsequent blade is interline with specially developed characteristics to allow the attachment between each pair of adjacent slides and, consequently, the release of one slide at a time when a certain volume of agricultural product is already baled. compacted inside the combine.

The interline is the main device of the present invention, as its two faces have strategically positioned adhesive and silicone regions so as to allow the attachment to be maintained between the blades when, for example, the blades are wrapped around the feed roll and also when one of the blades before starting baling. At the same time, the 'interline' has the additional function of allowing the release of the baling blade to hold the other adjacent blade in position for a new baling cycle.

[014] In order to keep this assembly correctly positioned, the 'interline' is made from a rectangular section of plastic blade, of material and thickness preferably identical to that of the baling blades and has the following characteristics:

- the surface of the interline, which makes contact with the adhesive surface of the 1 blade, is provided with four regions with specific coatings, a first region with silicone, a second region free of coating, a third region with new silicone, and a fourth region with hot melt adhesive with adhesion intensity between 50 and 70%;

- The other surface of the interline which contacts the non-adhesive surface of the second blade comprises a single region with a hot melt adhesive of 80 to 99% adhesion intensity.

Thus, when the edges of the surfaces of each sheet of plastic film are juxtaposed to each other receiving the intermediate element interline, a continuous film sheet release device is obtained without the need for folding or treatment in the since the arrangement of the adhesive and silicone layers on the interline make up the required strength and gradual release of the film being pulled by the baler until its final end is move the interline and set the bale closure before it is released into the field, in complete physical safety.

[016] The other blade remains with the 'interline' at its end, remaining in position until there is command to start baling, when then the 'interline' is placed directly on the agricultural product to be baled, following stick to the winding by the blade and plastic wrap.

[017] As it turns out, the release device, now new, has simplicity of obtaining and mounting.

Furthermore, it is noted that due to the predicted folding in the state-of-the-art "Z-lock" ^{® system} there is a thickening in the mounting region between one film and another, which no longer occurs with the release device and issue.

It is also noteworthy that to obtain the "Z-lock" ^{® system it} is necessary steps not foreseen in the innovative release device, mainly the "C" folding stage at the end of the film and neither the application of paper-type substrate, which results in procedural and material savings.

DESCRIPTION OF THE FIGURES

In addition to the present description in order to gain a better understanding of the features of the present invention and according to a preferred practical embodiment thereof, the following is a description of a set of drawings, where, by way of example, although not limitative, the following was represented:

Figures 1 and 2 are illustrative for a better understanding of the use of the baling film roll with the innovative release device; Figure 1 represents a harvester having the function of harvesting and composing the bale by winding from a plastic film blade and Figure 2 illustrates the release of said bale to the field;

Figure 3 illustrates the state-of-the-art "Z-lock" ^® system viewable in the above-mentioned patent document;

Figure 4 is an exploded perspective view of the main element of the present invention, namely, the interline duly positioned between the ends of two adjacent plastic film blades; Figure 5 illustrates a side view of the previous figure showing the end of one blade already applied to the baling mechanism while the end of the other blade is in the feed roller;

Figure 6 is an enlarged view of the interline revealing the adhesive and silicone regions that make up the clamping and releasing sectors between adjacent blades; Figures 7, 8 and 9 schematically illustrate how the interline behaves when the baling blade is pulled relative to the adjacent blade; Figures 10, 11, 12 and 13 schematically show the operation of the interline release device applied to the plastic film blades that make up the feed roll for baling the harvested and compacted crop; and

Figure 14 represents the agricultural crop burden wrapped by plastic wrap with the release device applied.

DETAILED DESCRIPTION

[021] According to the illustrations, the present utility model addresses "DEVICE OF TYPE CONTINUOUS FILM BLADES APPLIED FOR AGRICULTURAL CULTIVATION BALANCING" and more precisely, the release device. (1) is applied between subsequently and adjacent assembled plastic film sheets 10a and 10b, with between 15 and 25 sheets 10a and 10b forming a continuous unit comprising a feed roller (R). ) of the type used on combine harvester (CT) for baling (F) agricultural crops (CG) such as cotton, hay and others (see Figurei). Each blade 10a and 10b is preferably 7 meters. Every blade has an adhesive surface (SI) and another non-adhesive surface (S2).

According to the present invention, between the distal adhesive end 11a of the blade 10a and the initial nonadhesive end SI adjacent blade 10b an intermediate element 100 is applied, 'interline', with characteristics specially developed to allow the attachment between each pair of adjacent blades (10a) and (10b) and consequently allow the release of one blade (10a) or (10b) at a time when baling is required ( F) of a given volume of agricultural product (CG), already compacted inside the combine (CT).

Interline 100 comprises a rectangular section of plastics blade 101 with length (x) equal to the width of the blades 10a and 10b and width (y) of approximately 40 cm; the interline 100 is made of material and thickness preferably identical to that of the laminae 10a and 10b and has the following characteristics:

- the surface (S3) of the interline (100), which makes contact with the adhesive surface (S2) of the blade (10a), is provided with four regions with specific coatings covering the entire length (x) of said one. interline ', with a first region (RI) approximately 6 cm wide coated with silicone layer (102); a second region (R2) approximately 14 cm wide and free of any covering (103); a third region (R3) of approximately 20 cm wide silicone coated (104) which in turn receives the application of a layer of hot melt adhesive (105) of adhesion intensity between 50 and 70%. , approximately 19 cm wide, forming the region (R4).

- the other surface (S4) of the interline (100), which contacts the unadhesive surface (SI) of the blade (10b), comprises a single region (R5) with hot melt adhesive - (106) of adhesion intensity between 80 to 99%.

Thus, when the edges of the surfaces (SI) and (S2) of each plastics film sheet (10a) and (10b) are juxtaposed with each other, receiving the interline (100) as an intermediate element, it is obtained. a continuous film slide release device without the need for folding or treatment on the respective slides, since the arrangement of the adhesive layers (105) and (106) in association with the silicone regions (102) and (104) on the interline (100) make up the required strength and gradual release of the blade (10a) or (10b) being pulled by the combine baler (CT) until the end (11a) peels off the interline ( 100) carrying the region (R4) of adhesive (105), configuring the bale closure element (F), see figure 14.

[025] Adjacent blade (10b) - or (10a) in sequence on roll (R) - remains with the interline (100) at its end (see figures 8 and 9) remaining in place until There is a command to start the baling, when the 'interline' is then placed directly on the agricultural product to be baled, followed by rolling by the blade and plastic film.

In order for the release device (100) of each plastic film slide (10a) and (10b) to be actuated, the following application method steps (see Figures 10, 11, 12, and 13) follow. :

- the roller (R) is mounted on the harvester and has the first blade (10a) slightly pulled toward an agricultural crop volume (CG) being compacted within the harvester (CT) (Figure 10);

- As soon as a certain volume of agricultural cultivation (CG) is compacted, the process of wrapping this volume by the plastic film sheet 10a begins. For this, the blade 10a is pulled towards the compacted volume and, having its direction of entry directed by the bearing (RD), the blade 10a begins its ascent and wrapping around the agricultural volume (CG). compacted thereby holding the adhesive surface (S2) facing inwards (Figure 11);

- the traction of the blade (10a) continues until the next release device (100) reappears off the roller (R); thereafter there is a deceleration of the roll (R) allowing the blade (10a) to peel off the release device (100) by dragging with it the adhesive region (105) of said device which in turn remains with the blade adjacent (10b) (Figure 12);

- From this moment the roller (R) stops rotating, while the blade (10a) continues to be pulled by the harvester equipment (CT) so that the area (105) is driven against the surface of the blade (10a). by adhering to it firmly (Figures 13 and 14).

[027] Once the above-mentioned steps are completed, the bale (F) can be released to the field soil or other location, while a new procedure is initiated with the continuous crop harvesting (CG).

[028] As noted, there is no need for folding, substrates or the like as anticipated in the prior art, ensuring that the release device (100) is innovative, efficient and cost effective compared to existing ones. Admittedly, when the present invention is put into practice, modifications may be made with respect to certain details of construction and shape, without departing from the fundamental principles which are clearly substantiated in the claim framework. It is thus understood that the terminology employed was not intended for limitation.

Claims

R E IV I N D I HUNTING

1) "TYPE CONTINUOUS FILM BLADE RELEASE DEVICE APPLIED IN AGRICULTURAL CULTIVATION BALING AND METHOD OF APPLICATION", namely multiple blades of (10a) and (10b) and subsequently mounted plastic films 15 to 25 blades (10a) and (10b) form a continuous unit comprising a feed roller (R) of the type used in combine harvesters (CT) for baling (F) of agricultural crops (CG) such as cotton, hay and others; each blade 10a and 10b is preferably 7 meters; every blade has an adhesive surface (SI) and another non-adhesive surface (S2); characterized in that between the distal end (11a) of the lamina 10a (S2) and the initial non-adhesive end (11b) of the adjacent lamina (10b) is applied an intermediate element or release device (100), called 'interline', designed to allow attachment between each pair of adjacent blades (10a) and (10b) and consequently allow release of one blade (10a) or (10b) at a time when baling (F) is required. determined volume of agricultural product (CG), already compacted inside the harvester (CT); the interline (100) comprises a rectangular section of plastics blade (101) with length (x) equal to the width of the blades (10a) and (10b) and width (y) of approximately 40 cm; the interline 100 is made of material and thickness preferably identical to that of the laminae 10a and 10b and has the following characteristics:

- the surface (S3) of the interline (100), which makes contact with the adhesive surface (S2) of the blade (10a), is provided with four regions with specific coatings covering the entire length (x) of said one. interline ', with a first region (RI) approximately 6 cm wide coated with silicone layer (102); a second region (R2) approximately 14 cm wide and free of any covering (103); a third region (R3) approximately 20 cm wide silicone coated (104) which in turn receives the application of a hot melt adhesive layer (105) of adhesion intensity of 50 to 70%. , approximately 19 cm wide, forming the region (R4);

- the other surface (S4) of the interline (100) which makes contact with the surface (SI) Adhesive layer 10b comprises a single region (R5) with hot melt adhesive (106) of adhesion intensity between 80 to 99%.

2) "CONTINUOUS FILM BLADE RELEASE DEVICE" according to claim 1, characterized in that the arrangement of the adhesive layers (105) and (106) in association with the silicone regions (102) and (104) on the interline (100) meet the required strength and gradual release of blade (10a) or (10b) being pulled by combine baler (CT) equipment until final end (11a) peels off interline (100) carrying the region (R4) of adhesive (105) with it, configuring the bale closure element (F).

3) "CONTINUOUS FILM BLADE RELEASE DEVICE" according to claim 1, characterized in that the adjacent blade (10b) or (10a) - in sequence on the roll (R) - remains with the interline (100) at its end remaining in position until the baling command is initiated, when the interline is then placed resting directly on the agricultural product to be baled, followed by rolling by the blade and plastic film.

Method of applying the release device according to claim 1, characterized in that the release device (100) disposed between each plastic film blade (10a) and (10b) follows the following steps to be actuated:

- the roller (R) is mounted on the harvester and has the first blade (10a) slightly pulled towards an agricultural crop volume (CG) being compacted within the harvester (CT);

- As soon as a certain volume of agricultural cultivation (CG) is compacted, the process of wrapping this volume by the plastic film sheet 10a begins. For this, the blade 10a is pulled towards the compacted volume and, having its direction of entry directed by the bearing (RD), the blade 10a begins its ascent and wrapping around the agricultural volume (CG). with a covenant thereby keeping the adhesive surface (S2) facing inwards;

- the traction of the blade (10a) continues until the next release device (100) reappears off the roller (R); thereafter there is a deceleration of the roll (R) allowing the blade (10a) to peel off the release device (100) by dragging with it the adhesive region (105) of said device which in turn remains with the blade adjacent (10b); and - From this moment the roller (R) stops rotating, while the blade (10a) continues to be pulled by the harvester equipment (CT) so that the area (105) is driven against the surface of the blade (10a). by sticking to it tightly.