JPH061318U - Belt joining structure of conveyor belts of different cores - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To provide a belt joining structure of different cores that is economical and convenient for stocking. [Structure] The upper and lower cover rubbers 5 and 6 are peeled off by exposing the end joint portions 1a and 3a of the belt bodies 1 and 3 made of different material cores 2 and 4 to predetermined lengths of the core bodies 2 and 4 respectively. It Then, in a state where the core bodies 2 and 4 made of the different kinds of materials are butted against each other, the reinforcing cloth 7 is arranged on the upper and lower surfaces thereof with the adhesive agent Q indicated by the alternate long and short dash line, and on the reinforcing cloth 7, An unvulcanized cover rubber 8 having a thickness t, which is flush with the belt bodies 1 and 3, is disposed and vulcanization molded integrally with the belt bodies 1 and 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a belt joining structure of a conveyor belt having different cores. More specifically, the belt main body made of aromatic polyamide fiber is joined to an endless end portion of the belt main body made of steel cord. The present invention relates to a belt joining structure of a conveyor belt that enables the above.

[0002]

[Prior art]

 Conventionally, a conveyor belt is generally used in which a core body is made of the same material, and a structure in which different kinds of core bodies are joined is not used. This is because it is difficult to join different core materials together.

[0003]

[Problems to be solved by the device]

 For this reason, for example, when replacing the core with a conveyor belt that uses steel cords and the core with aromatic polyamide fibers, it is not possible to partially replace the entire length once. If a conveyor belt with a steel cord as the core and a conveyor belt with an aromatic polyamide fiber as the core are used, they should always be replaced for emergency purposes. It is necessary to prepare a spare belt, but in this case, if two types of conveyor belts such as those mentioned above are used, it is necessary to prepare each conveyor belt. There was a problem that required various expenses.

This invention has been devised in view of such conventional problems. When the conveyor belt is replaced with a conveyor belt having different cores, it is not necessary to replace the entire length of the conveyor belt at once. Since it can be replaced partially or gradually, it does not require a lot of expense at one time, and even when preparing a conveyor belt, prepare one kind of emergency spare belt The purpose of the present invention is to provide a belt joining structure of different cores which is economical and therefore convenient for stocking.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention has a structure in which the end portions of two types of belt bodies made of different core materials are joined, and the end portion of each belt body is exposed at a predetermined length. Then, the upper and lower cover rubbers are stripped off, and with the cores made of the different materials abutting each other, reinforcing cloths are arranged on the upper and lower surfaces respectively, and the thickness of the reinforcing cloth is flush with the belt body. The gist of the present invention is that the unvulcanized cover rubber is provided and integrally connected to the belt body by vulcanization molding.

[0006]

[Function of the device]

 The present invention is constructed as described above, and at the end joints of the belt body made of different kinds of cores, the cores made of the different materials are peeled off by exposing the cores of predetermined lengths and stripping the upper and lower cover rubbers. Buttresses are placed on top of each other with adhesive applied to the upper and lower surfaces, and an unvulcanized cover rubber with a thickness flush with the belt body is placed on the reinforcing fabric. When the conveyor belt is replaced with a conveyor belt having different cores by vulcanization and molding integrally with the belt body, it is not necessary to replace the entire length of the conveyor belt at once, but to replace it partially or gradually. Can be done.

[0007]

[Example of device]

 An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a cross-sectional view of a terminal joint portion of a conveyor belt embodying the present invention. 1 is, for example, a belt main body using a steel cord for a core 2 and 3 is an aromatic polyamide for a core 4. A belt main body made of fiber is shown, 5 is a lower cover rubber, and 6 is an upper cover rubber.

When the end portions of the belt bodies 1 and 3 made of the core materials 2 and 4 of different materials are joined, it is generally difficult to join the core bodies 2 and 4 of different materials, In the embodiment of this consideration, the following structure enables joining. That is, the end joint portions 1a and 3a of the belt bodies 1 and 3 of the core bodies 2 and 4 made of different kinds of materials are exposed by exposing the core bodies 2 and 4 of predetermined lengths and the upper and lower cover rubbers 5 and 6 are peeled off. . Then, in a state where the core bodies 2 and 4 are abutted against each other, reinforcing cloths 7 are respectively arranged with upper and lower surfaces thereof being coated with an adhesive Q indicated by a chain line, and the belt body 1 is placed on the reinforcing cloths 7. , 3 and a non-vulcanized cover rubber 8 having a thickness t which is flush with the belt main bodies 1 and 3 are integrally vulcanized and molded.

As the material of the reinforcing cloth 7, natural fibers and synthetic fibers are used, but nylon fibers are excellent, and a modulus of 1,800 to 2,500 Kgf / cm is preferable. By doing so, the end joint portions 1a and 3a of the belt bodies 1 and 3 of the core bodies 2 and 4 made of different materials are also firmly joined, and the conveyor belt is partially damaged or needs to be replaced. Even if it happens, it can be easily replaced. 2 (a), (b), (c) and FIGS. 3 (a), (b), (c) show an embodiment of the joining method of the end joining portions 1a, 3a of the belt bodies 1, 3. 2 (a), (b), and (c), a low strength structure is obtained by simply abutting the end joining portions 1a and 3a of the belt bodies 1 and 3 composed of the core bodies 2 and 4 of different materials. 3 (a), (b), and (c), the terminal joint portions 1a and 3a are respectively formed into concave and convex shapes 9a and 9b and are inserted into each other. In the case of this embodiment, the insertion length L ₁ is preferably 100 mm to 200 mm and the insertion width L ₂ is preferably 50 mm to 100 mm. This is done to improve the flexibility of the abutted part and to increase the joint strength with high strength. With the above configuration, when replacing the belt bodies 1 and 3 of the core bodies 2 and 4 of different materials, it is not necessary to replace the entire length of the conveyor belt at once, but to replace it partially or gradually. Can be done.

[0010]

The present invention has a structure in which the end portions of two types of belt bodies made of different kinds of core materials are joined together as described above, and the end joint portions of each belt body are provided with a core body of a predetermined length. Exposed, the upper and lower cover rubbers are peeled off, and the cores made of the different materials are abutted against each other, and reinforcing cloths are arranged on the upper and lower surfaces, respectively, and the belt main body is flush with the reinforcing cloth. When the conveyor belt is replaced with a conveyor belt with different cores, the unvulcanized cover rubber of the following thickness is placed and the belt body is integrally vulcanized to form a connection. Since it is not necessary to replace the entire length of the conveyor belt at a time and can be replaced partially or gradually, it does not require a great expense at one time, and even when preparing the conveyor belt, Any one of the emergency It is only necessary to prepare a spare belt, so that it is economical and convenient for the stock place.

[Brief description of drawings]

FIG. 1 is a sectional view of a terminal joint portion of a conveyor belt embodying the present invention.

2A is a plan view showing a method of linearly joining end joining portions of a belt main body, FIG. 2B is a sectional view taken along line AA of FIG. 2A, and FIG. It is a BB arrow sectional drawing of a).

FIG. 3A is a plan view showing a method of forming an end joint portion of a belt main body in a concavo-convex shape and joining them by a plug-in type;
(B) is a sectional view taken along the line CC of (a), and (c) is
It is a DD sectional view taken on the line of (a).

[Explanation of symbols]

1 Belt Main Body 1a Belt Body End Joining Part 2 Steel Cord Core Body 3 Belt Body 3a Belt Body End Joining Part 4 Aromatic Polyamide Fiber Core Body 5 Bottom Cover Rubber 6 Top Cover Rubber 7 Reinforcing Cloth 8 Unvulcanized Cover rubber Q adhesive

Claims (1)

[Scope of utility model registration request] 1. A structure for joining end portions of two kinds of belt bodies made of different kinds of core materials, wherein the end joint portions of each belt body are covered with upper and lower cover rubbers by exposing a core body of a predetermined length. Peel off the core body made of the different material, but abutting reinforcing cloths on the upper and lower surfaces of the core body, and the unvulcanized cover rubber having a thickness flush with the belt body on the reinforcing cloth. A belt joining structure for a conveyor belt of different cores, characterized in that it is configured to be connected by vulcanization molding integrally with the belt main body.