DE8222599U1 - CONVEYOR BELT WITH TWO FABRIC INSERTS ARRANGED - Google Patents

Description

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PHOENIX

8O6 Px - 2 - 6/8/1982

The invention relates to a conveyor belt aas rubber or rubber-like plastic with two synthetic fabric inserts separated by a rubber intermediate plate Bevel material.

Conveyor belts with such a structure are known. They preferably have polyester threads in the warp and polyamide in the weft thread material. However, other combinations of the various fiber materials are also used. The selection of the fiber material depends on the intended use of the conveyor belt and also after the rubber or plastic material from which the conveyor belt is made.

Such so-called two-layer belts can be hooked or also endlessly diluted by vuüeaöiäation. However, vulcanization is preferred to produce such compounds because it is less effective in operation Causes disruptions. To produce such conveyor belt connections, it is necessary to use the Green Plates on the top and bottom and the plate lying between the two layers of fabric down to the fabric grind to create a technically effective connection. to be able to * Even with repairs, such as those caused by falling rock on the conveyor belt such grinding operations are required. Experience has now shown that with such grinding processes sometimes the warp thread in individual areas take damage while grinding. Even if the warp thread is only slightly sanded, this leads when the conveyor belt is used later on, premature damage in the connection or repair area.

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8O6 Px - 3 - 6/8/1982

QLe warp threads damaged by grinding are significantly weakened in their resilience. This state kass the "zn ice Seifies the asgesehliffeaes warp lead. As a result, warp threads lying in the vicinity that are still in tact are slightly overstressed, | so that errors in grinding can, so to speak, result in a chain reaction.

The object of the invention is to provide a structure in which. at the beginning to create said conveyor belt, in which such damage can no longer occur due to grinding and in which, in addition, a wide range of variation in the selection of the bevel material can be achieved.

To solve this problem, it is provided in the aforementioned conveyor belt that each of the fabric inserts a warp thread layer with a titer on both outer sides of at least 2500 dtex.

Such an additional warp thread at the top can be viewed as an over-warp thread. This over-warp thread should have a titer that is greater than that of the warp thread of the fabric insert. As fiber material can for the over-warp thread synthetic or cellulose naiiastestandea Faaefaaterial find application.

If such a warp thread layer on both sides of the Fabric insert is provided, so% efni loop-α leads to that at first these upper warp threads become visible. In then stop sanding the rubber material at this stage. This use of over-warp threads thus leads this means that the actual warp threads of the fabric cannot be damaged, since the over-warp threads are clearly visible fabric inserts lie above the warp threads.

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I I

806 Px - k - 6/8/1982

Since these over-warp threads do not have any role to play in the actual fabric, they are damaged by them Grinding process not harmful. Rather, the opposite is the case, because when creating the endless connection The over-warp threads exposed by grinding enable better mechanical and chemical adhesion.

According to the invention, the over-warp threads should be embedded in the tension member chains from them essentially protrude beyond the outer surface of the actual tissue core. The highest tissue peaks are therefore in the Hegel formed by the over-chains.

By using a suitable fiber material, you can also the prerequisite for an improved filter suitability of the conveyor belt can be achieved. The invention works Incidentally, also with regard to the improved Aufs blow protection off *

The invention is described in connection with an illustration, for example. Slide Fig »shows a cross section through a so-called two-layer belt. The two fabric inserts 1 and 2 are covered at the top and bottom by a rubber plate 3 and ^. In addition, there is another rubber plate 5 between the two fabric layers 1 and 2. The connection of the layers 1 to 5 is established by vulcanization with all-round adhesion and penetration. The fabric layers 1 and 2 consist of weft threads G ₁ 8 and warp thread 7, These warp threads loop around the two layers of weft threads 6 and 8.

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8θ6 Px

6.8.1982

These over-warp threads 9 also loop around the weft threads 6 and 8, but each lie on the outside of the fabric layers. , And 5 are initially only the TJberkettfadenlage be damaged during grinding Verdeη the invention, such Überkettfaden 9 is provided so as Kasa beia grinding, the Gummiplatben 3 * i. The weft threads 6 and 8 are just as spared as the ones

gvuuBJiaueu ubiswuxxu ^ buuqju ac ι · uausu /. uj.a ua ^ as buuaex i> of the conveyor belt remains unchanged under these circumstances, since damage cannot occur during the production of conveyor belt connections on the tissue core.

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Claims (3)

Expectations 1 ..} Conveyor belt made of rubber or rubber-like plastic with two separated by a rubber spacer Fabric insert made of synthetic fiber material, thereby characterized in that each of the fabric inserts (l, 2.) each has a warp thread layer (9) with a titer of at least 2500 dtax on both outer sides. 2.) Conveyor belt according to claim 1, characterized in that that the titer of the over-warp thread (9) is greater than the titer of the warp thread (7) of the fabric insert. 3.) Conveyor belt according to claims 1 and 2, characterized in that that the over-warp thread (9) made of synthetic or cellulosic fiber material. k ») Conveyor belt according to claims 1 to 3», characterized in that the over-warp threads (9) are embedded in the backing chains in such a way that they protrude essentially beyond the outer surface of the fabric insert. / 2