JPH01247349A - Paper sheet carrying belt and its manufacture - Google Patents

Abstract

PURPOSE:To improve rigidity for supporting a carried material body and to manufacture a belt accurately and simply by composing a belt of a fluted layer having a fluted cord arranged in a lateral direction of the belt, a tension member layer and a bottom rubber layer. CONSTITUTION:A fluted canvas 11 covered with rubber to a proper thickness is stuck on a vulcanizing metallic mold 10 with a fluted cord 2a arranged in a lateral direction of the metallic mold. A thin unvulcanized rubber sheet 12 is stuck on the canvas 11, and a core member 13 is spirally provided on the rubber sheet 12, and moreover an unvulcanized rubber sheet 14 is stuck on the core member 13. The above-mentioned stuck members and parts are thereafter pressurizedly vulcanized, and properly vulcanized by pressurizedly heating them, and then polished on its one or both faces into a proper shape and dimension. Thus, gas generated during a vulcanizing process is discharged through the fluted canvas 11 in the lateral direction of the metallic mold, and the core member 13 is supported by both the unvulcanized rubber sheet 12 and the fluted canvas 11, and thereby fixedly positioned and arranged without vertical movement, resulting in its no disorder. In addition the fluted cord 2a can improve the rigidity of a belt.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a belt for conveying paper sheets and a method for manufacturing the belt.

(Prior Art) Devices for conveying paper sheets such as banknotes, passbooks, and cards by sandwiching them between belts have been known.

For example, there are automatic cash machines, telephone card machines, etc.

An example of the layout of such a device is shown in FIGS. 5-7. That is, in the apparatus of FIG. 5, one belt a
1 is a drive pulley b1 and three guide pulleys cl, c2.
c3, and the other belt a2 is wound around the drive pulley b
2 and 4 guide pulleys c4. c5. c6. c7, both belts al and a2 are in contact with each other at a portion, and paper money, forms, tickets, etc. are held and conveyed at the contact portion.

In addition, in the device shown in FIG. 6, one belt a3 is connected to a drive pulley b3, a guide pulley c8, and a presser pulley d1.
while the other belt a4 is wound around two hold-down pulleys d2. d3 and the guide pulley c9. Both belts a3 and a4 are in contact at a portion, and an inserted card or the like is guided by a guide member e. When a card or the like is inserted from section A, drive pulley b3 rotates in the S1 direction, and the card is inserted into section A.
When guided to the position and the process is completed, the drive pulley b3
rotates in the S2 direction, and a card or the like is conveyed to the D position.

Furthermore, in the device shown in FIG. 7, one belt a5 is 1
The other belt a6 is wound around two drive pulleys b4, a guide pulley c10, and a presser pulley d4, and the other belt a6 is wound around a presser pulley d5 and two guide pulleys c8. Banknotes and the like wound around c9 and stored in the stock part f are conveyed. In this case, if the friction coefficient of the belt is large, bills etc. will get caught, so one belt a6
The friction coefficient of belt a5 is set to be small, and the friction coefficient of the other belt a5 is set to be large.

In this way, since the conveyed object is conveyed by being held between the two belts, such a belt is required to have rigidity to support it.

(Problem to be solved by the invention) However, since such belts were manufactured by wrapping rubber directly around a mold and wrapping a cord on top of the rubber, the release agent applied to the surface of the mold could be damaged. When it expands, gas is generated, but there is no place for the gas to escape and the gas gets trapped. Also, since the cord is only supported by the rubber during vulcanization, the pressure during vulcanization causes the cord to become trapped. It moves up and down and left and right, causing chord disturbances.

Another option is to use canvas, but if you do that, the cords will become disordered at the joints of the canvas, and the stiffness will change at the joints of the canvas, resulting in large rotational irregularities and a belt that requires precision. It cannot be used as such.

Furthermore, if the thickness of the rubber portion on the side in contact with the mold is increased in order to increase the support rigidity of the cord, the cord will sink significantly due to the flow of the rubber during vulcanization. On the other hand, if the thickness of the rubber part on the mold side is made thinner, waving will occur.

In view of these points, the present invention provides a paper sheet conveying belt that has excellent support rigidity for conveyed objects, is easy to manufacture, and can be manufactured with high precision, and a manufacturing method that can manufacture such a belt with high precision and ease. The purpose is to provide

(Means for Solving the Problems) The present invention is based on a paper sheet conveying belt used for conveying paper sheets, and provides a sagging layer in which sagging records are arranged in the width direction of the belt, and a tensile layer. and a bottom rubber layer.

The tensile layer has a core cord, and the core cord is
It is desirable that the yarn be selected from twisted yarns and filament yarns with low elongation, such as cotton yarn, polyester yarn, aromatic polyamide yarn, and glass fiber. The sudare cord of the sudare layer is preferably selected from cotton yarn, polyester yarn, and aromatic polyamide yarn.

The Suda record of the Sudare layer has a diameter of 0.08 to 0°30 m.
It is necessary that m. Moreover, it is desirable that the number of sudare records driven into the sudare layer is 55 to 150 per 50 mm.

The present invention also provides a method for manufacturing a belt used for conveying paper sheets, in which a sudare canvas coated with rubber to an appropriate thickness is placed on a vulcanization mold in the width direction of the mold. A thin unvulcanized rubber sheet is pasted on top of that, a core cord is placed on top of that, an unvulcanized rubber sheet is pasted again, and then vulcanization is performed by applying pressure and heat. It is. .

(Function) The rigidity of the sagging layer firmly supports the conveyed object.

During vulcanization, the tension layer (sudare record) is located under the tensile layer, so the movement of the tensile layer (core cord) is restricted, and at that time, there is a gap between the mold and the rubber. The generated gas flows in the width direction of the mold by the sagging layer and is discharged.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1 showing the cross-sectional structure of the paper sheet conveying belt,
Reference numeral 1 designates a flat belt, which includes, from the top, a sudare layer 2 in which sudare cords 2a are arranged in the width direction of the belt, a tensile layer 3 in which cords 3a are spirally wound around an adhesive rubber 3b, and a bottom rubber layer. It has 4. The bottom rubber and the adhesive rubber are made of, for example, well-known chloroprene rubber.

Further, on the bottom side of the bottom rubber layer 4, a protrusion 5 having a trapezoidal cross section is provided at the center along the longitudinal direction of the belt. That is, the belt 1 is a so-called single-shaped belt that takes advantage of the characteristics of a belt and a V-belt.

The above-mentioned Suda record 2a is selected from cotton yarn, polyester yarn, and aromatic polyamide yarn, and has a diameter of 0.08~
It is necessary that the diameter is 0.30 mm, and the number of sudare records 2a driven in the sudare layer 2 is 50 mr.
It is desirable that the number is 55 to 150 per n.

The cord 3a is selected from twisted yarns and filament yarns with low elongation, such as cotton threads, polyester threads, aromatic polyamide threads, and glass fibers.

An example of the dimensions of the belt is as follows.

L1=6~10.0mm, L2-2, Omm, L3-1
．． 5~2.0mm, L4-0.75~1゜0mm, L5
=0.35~0. 5 mm, θ-32 to 40°. The thickness of the sagging layer 2 is approximately 0.1 to 0.2 mm.

Next, a method for manufacturing the belt 1 will be explained.

1. Paste the sudare canvas 11 coated with rubber to an appropriate thickness onto the vulcanization mold 10 so that the sudare record 2a is in the width direction of the mold. In addition, a thin unvulcanized rubber sheet 12
is pasted, a core body (cord) 13 is provided in a spiral shape on top of it, an unvulcanized rubber sheet 14 is pasted again, and then pressure vulcanization is performed, and proper vulcanization is performed by pressure heating.
Polish one or both sides to the appropriate shape and size.

In this way, during vulcanization, the generated gas is discharged in the mold width direction through the sudare canvas 11, and the core is not only the unvulcanized rubber sheet 12 but also the sudare canvas 11.
Since the core body 13 is also supported by the core body 13, the position of the core body 13 is constant and aligned without moving up and down, and no disturbance occurs.

In addition, since the tape record 2a is arranged near the surface of the belt 1 to increase the rigidity of the belt, as shown in FIGS.
In the layout shown in the figure, the pressing force exerted by the presser pulley increases between the two belts having different coefficients of friction, making the clamping effect even higher.

Next, the results of tests conducted on the belt 1 will be explained.

(1) The relationship between the thickness of the Suda record diameter and chord disturbance is as shown in FIG. That is, since it is desirable that the disorder of the cord is 0.1 mm or less, the diameter of the cord is preferably within the range of 0.08 to 0.30 mm.

(2) Relationship between the number of suda records driven per 50 mm and cord disorder as shown in FIG. From this result, it is preferable that the number of suda records driven per 50 mm is in the range of 55 to 150. Note that the diameter of the Suda record used in this test was 0.22 mm.

(Effects of the Invention) Since the belt of the present invention is configured as described above, it is possible to reliably support the conveyed object due to the rigidity of the Suda record in the belt width direction.

Further, according to the manufacturing method of the present invention, it is possible to discharge gas generated during vulcanization, and a thin belt can be manufactured with high accuracy, and the manufacturing thereof is also easy.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the belt, Figure 2 is an explanatory diagram of the manufacturing method,
FIGS. 3 and 4 are diagrams showing the test results, and FIGS. 5 to 7 are explanatory diagrams of the layout of the apparatus to which the belt is applied. 1...Belt, 2...Sudare layer, 2a
...Suda record, 3...Tensile layer,
3a...Cord, 4...Bottom rubber layer.

Claims (6)

[Claims] (1) A belt used for conveying paper sheets, including a sudare layer in which sudare records are arranged in the belt width direction;
A belt for conveying paper sheets, comprising a tensile layer and a bottom rubber layer. (2) The tensile layer has a core cord, and the core cord is selected from twisted yarns and filament yarns with low elongation such as cotton yarn, polyester yarn, aromatic polyamide yarn, and glass fiber. However, a belt for conveying paper sheets according to claim 1. (3) The belt for conveying paper sheets according to claim 1, wherein the sudare record of the sudare layer is selected from cotton thread, polyester thread, and aromatic polyamide thread. (4) The Suda record of the Sudare layer has a diameter of 0.08~0.
The belt for conveying paper sheets according to claim 1, which has a length of 30 mm. (5) In the Sudare layer, the number of Sudare records driven is 50.
The belt for conveying paper sheets according to claim 1, wherein the number of belts per mm is 55 to 150. (6) A belt used for transporting paper sheets, in which a sudare canvas coated with rubber to an appropriate thickness is pasted on top of the vulcanization mold so that the sudare record is in the width direction of the mold; A paper sheet characterized by pasting a thin unvulcanized rubber sheet thereon, providing a core cord thereon, pasting an unvulcanized rubber sheet again, and then vulcanizing it by applying pressure and heat. Method of manufacturing a conveyor belt.