JPS60144209A - Conveyor belt - Google Patents

Abstract

PURPOSE:To reduce the abrasion of overlapped zones by forming a conveyor belt cylindrically overlapped by multiple pressing rollers with a base layer and a reinforcing core layer and forming one side section of the overlapped zones thin. CONSTITUTION:A conveyor belt 4 is partially bent cylindrically by a group of pressing rollers, and both side sections 5, 6 are overlapped each other. In this case, the conveyor belt 4 is formed by burying a reinforcing core layer 8 in a base layer 7 made of a rubber material in one body. The reinforcing core layer 8 is formed with main layers 8a-8c made of nylon canvas or the like and a middle rubber layer 8d inserted between them. In addition, at one side section 5 of the conveyor belt 4, the distance between the main layers 8b, 8c is made smaller as compared with the distance between the main layers 8a, 8c of the other portion including the other side section 6. Accordingly, the contact pressure of both side sections 5, 6 at overlapped zones is reduced, and the abrasion of the overlapped zones can be reduced.

Description

[Detailed description of the invention]

The non-invention relates to a conveyor belt which is curved into a cylindrical shape using a pressure roller (hard number 2) and conveys powdered books, etc. 1 tie used by bending it into a cylindrical shape towards the top side] For cylindrical belt conveyors, 7
It is possible to convey powder and granules at a greater angle of inclination than with a belt conveyor. By the way, in conventional σ-competitive belts, their cross-sectional shape and structure are formed symmetrically in the width direction, and the bending rigidity in the width direction is equal on both sides, so when bent into a cylindrical shape, The sides of the rLk image came into contact with each other under considerable pressure, and the sliding phenomenon that occurred during running required an extra drive drive and caused severe wear on the base layer. [Uninvented] The purpose is to reduce the contact pressure in the polymerization part,
The compromise lies in providing a cylindrical shape that can reduce wear and tear. The non-invention is fj J (/r clamping pressure-run use,
1. Both sides in the width direction are overlapped with each other.

[−
1. On the conveyor belt that conveys powder grains,
a base layer, and a base layer buried over substantially the entire base layer, 7'L.
TC reinforcing core layer, and the reinforcing core layer and other parts Q]
It is characterized by being thinner than the LIc (-). In the above-mentioned ridge, an 82'L reinforcing shell layer is buried over almost the entire base layer and the base layer σ. formed by
The reinforcing core layer at the side part is smaller than the reinforcing core layer at the other part (/1 part, and the reinforcing core layer at the side part is smaller than that at the other part. When bending the competition belt into the FFJ cylindrical shape with the clamping rollers, the elastic restoring force of the - side part is small, so that the - side part Q-n is smaller than the other side part VC. The contact pressure is low, and the wear due to sliding contact during running is reduced. As a result, the comper belt or drive power becomes low δ0 or less - non-inventive σ) Example 7al - Explanation will be given with reference to FIGS. 1 to 3. Fig. 1 is a schematic diagram of a cylindrical belt using a cylindrical belt 4. The 0776 belt 4 shown in Fig. There is a stretched n1. Then, the Funbema belt 4 is bent into a cylindrical shape by the pinching roller group 3 at the A part, and the image side part is bent in a cylindrical shape as shown in FIG. 5.6 swords are overlapped with each other. In this way, by bending the Nikon Hemabelt 4χ into a cylindrical shape and transporting a single particle of powder or a water-containing object to be conveyed B, compared to the normal σ) belt conveyor, Steep slope σI conveyance with large loading cross section? It is possible to do so. Therefore, the Compema belt 4 has a σJ shape and a structure as shown in FIG. Sar(,
ing. This reinforcing core layer 8 is formed of iron canvas or the like and has a shape of nk main layers 8α-8h, 8c and an intermediate rubber layer 8d sandwiched between the main layers, and is formed in the longitudinal direction of the Compema belt 4θ. Of course, it is buried over almost the entire width, giving the Funbema Belt 4 sufficient rigidity to allow it to be bent into a cylindrical shape. ′
'C is main layer 871, BCy+f7jTIi7)', a
δn1, which is smaller than the interval between main layers 8a and 8cσ in other parts including ti side i6y, And small. 8. When the width of the belt is 4σ and the width is W, -
Ik, - In order to reduce the bending rigidity at the side part 5, if the main layer 8h is omitted - the tensile force in the longitudinal direction acts on the belt 4vC, and its elongation force becomes unbalanced at 20,000 times. It's not good to be like that. When manufacturing a conveyor belt 4, the rubber base layer 7 is heated, compressed, integrated with the reinforcing shell layer 8, and re-cooled to form a side part 5. , the base layer 7 in
Due to the difference in heat shrinkage rate between the base layer 7 and the reinforcing core layer 8 (/), the rubber base layer 7 (/) has a particularly thick wall of 1C.
Is the heat shrinkage rate of iron canvas? For reinforcing core N8v
+ is larger than that), - the side portion 5 is deformed so as to warp upward in FIG. 3 (vc). The shape and structure of the non-embodiment f/+ funbe-chop belt 4 are as follows. As shown in Figure 2, the conveyor belt is bent into a 4-inch cylindrical shape, and the -1L111 side part 5
When polymerizing so that is located inside the other side part 6, -
Side part 5u) Bending rigidity 7) s small, warp] Elastic restoring force part 6σ) Surface 6A and 0) Sliding contact pressure furnace, conventional σ] Cylindrical belt conveyor belt) (/I Te smaller than that) Moreover, the competition belt 4 has one side 5 warped in the opposite direction from the surface 5A when left unattended.
Image contact surface 5A, 6Aσ) The contact surface pressure further decreases. Therefore, when the conveyor belt 4 is running smoothly, the frictional resistance of the sliding contact surfaces 5A and 6A when sliding against each other (even if the contact area θ) is small, and compared to the conventional conveyor belt, the frictional resistance is small, and the base layer 7
σ] Not only does the amount of wear decrease, but the driving force can also be reduced. Next, the Funbema belt 4 will be explained again as shown in FIGS. 4 and 5. In the figure, the symbol Q) corresponds to the clearly stated embodiment U) conveyor belt 4VC, and is marked with C. Figure 4 Figure 60) Competition? To belt 4 - rubber base layer 7
and the reinforcing core layer 8. - The force interval between the main layers 8a and 8b in the side portion 51C is made smaller by °C than the interval between the main layers 8a and 8c (7) in the other parts - and the contact surface 5A is formed in a convex curved shape in this example. In this case, the contact surface 5A at the − side portion 5 has a convex curved shape 2"
At this point, the contact surface pressure σ) between the contact surfaces 5A and 6A becomes smaller. (see Figure 5) The conveyor belt 4 has the same structure as the Funbema belt 4 except for the -1 edge 5. layer 8bσ) upper i
/C compression side σ) The base layer 7a is in other parts (
Basic layer 7 (rubber σ), T-S hardness bO~70)V
Low hardness σ) rubber (JIS hardness 45° to 55°
) is formed with awn. With a small bending moment on the - side portion 5, the contact surface pressure between the curved edges 2t and the contact surfaces 5A and 6''A becomes small.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram of a cylindrical helmet knife 1 using Compema Belton according to the non-inventive and non-practical example, and Fig. 2 is its
■ Line cross-sectional view, Figure 3 is ITI-III in Figure 1
Figures 4 and 5 are fragmentary cross-sectional views of the Funbema belt according to the examples.
・Pressure a-a group, 4...compema belt, 5...
- Side part, 6...°Other side part, 7... Basic layer, 8...
・Reinforcement team N8 agent Patent attorney Nozomi Ehara 2 people

Claims (1)

[Claims] Using a four-dispersion V's pinching roller, the (I) width square sides are overlapped with each other to form a cylindrical shape, and a conveyor belt for conveying the powder, granules, etc. is placed on the base layer and the The base layer (consisting of a reinforcing core layer buried over almost the entire IF, side portion U that should be located inside during polymerization) compared to the reinforcing core layer and other parts. Funbema belt is characterized by its thin walls.