JPS6186306A - Method of manufacturing ceramic roll - Google Patents

Abstract

PURPOSE:To aim at enhancing the cylindricity and bonding strength of ceramic rollers in a method of manufacturing ceramic guide rollers used for a transfer conveyor, by laying a ceramic material on the inner surface of a pipe member with the use of a bonding layer, and by securing a roll core made of metal in the pipe member with the use of a thermohardenable resin. CONSTITUTION:An adhesive tape which is not shown is laid on the inner peripheral surface of a bottomed pipe member 5, and therefore, ceramic bodies 2 having a predetermined shape such as, for example, a spherical body, are secured uniformly on the inner surface of the pipe member 5 through the intermediary of the adhesive tape. Then, a metal roll core 1 is disposed in the center axial section of the pipe member 5, and thereafter, a liquid type thermohardenable resin 3 is filled between the ceramic body 2 and the roll core 1. Further, the thus obtained assembly is heated to harden the resin 3 so that the roll core 1 and the ceramic body are integrally incorporated with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to the production of ramic rolls σ used as guide rolls for transfer conveyors, for example.

(1) Conventional technology, the conventional 9 types of seven lamic rolls, such as the inner columnar iron core 1411 as shown in Fig. 5 and Fig. 6). Flood (natural rubber mixed with synthetic rubber)
Gradually, this rubber body was bonded by baking means, and a large number of flat rectangular three-sided plates were formed at regular intervals over the entire surface of the rubber body.43)...? It is known to have excellent abrasion resistance and durability and is manufactured by artificially disposing it on an adhesive means.

→ Problems that the Invention Aims to Solve Thus, conventional ceramic rolls have a number of drawbacks.

f, @Rubber distribution body L4z has a flat rectangular shape σ]t ramic board on the curved surface: 43... Of course, it is rolled and formed by rolling, and the cylindricity is poor. λ,
Curved rubber body, 421 flat three-sided plate (4
3) Because the structure is adhesive, the adhesive strength is unstable, and in addition, a large number of ceramic plates (43) are pasted, making workability poor and causing cracks. The roll itself had the disadvantage of being expensive. Also, the ceramic plate (43) is oak-shaped, so it is weak against impact.
”There were some problems that were easy to overcome.

! problem? Means to solve the problem: Therefore, due to the technical issues during the first firing, we will develop a simple manufacturing method, which has good cylindricity and adhesive strength, and 11) low manufacturing cost. How to make rolls? The purpose is to donate money.

The technical issue of
Is it possible to install a ceramic body by adding λ to the purpose? Ceramic roll σ that can be cut by centrifugal force
Production method? The purpose is to donate money.

Difficulty] This invention solves technical problems σ) First shot σ) Technical means: Adhesive layer on the inner surface? Is there a spherical, curved granular or curved surface inside the formed tube? The first step is to insert the ceramic body and place the ceramic body along the tube-containing surface, and to attach the Zeng-Yin o-ru core to the tube axis. a second step of disposing a thermosetting liquid resin between the three-piece body disposed along the inner surface of the tube and a roll core made of II-3; a third step of press-fitting a thermosetting liquid resin; The fourth step is to soften the mouth.

In addition, the uninvented) 2nd shot 11-1 and] technical means are as follows: The first step of inserting a large number of scraped ceramic bodies and extending the ceramic bodies along the inner surface of the tube by centrifugal force is the same as the first invention σ] process. Mobi).

(4) Effects of the present invention and (7) In the first shot, if technical means are used, the ceramic body placed along the tube body will be resin-molded with the resin in the final process, and as a result, the cylindricity will be reduced. In addition, the adhesive strength of the elyceramic body is stable when it is made into a resin mold, and it is also durable.Furthermore, the manufacturing method is simple and workable, and the manufacturing cost is low. It's cheap, and the ceramic body is spherical as well.
j:: Chakuyoshi ÷? -Strength) Raku-shaped σ) is also more resistant to impact and less likely to break than 17).

Unreleased? /) During the second shot σ] According to the technical means, in addition to the action during the first shot mentioned above, during the palm process, a large number of ceramic body sounds are automatically generated in the tube due to the centrifugal force. It is possible to install the same ceramic body along with the installation process)
It will be improved by self-cutting.

(f) Example Hereinafter, an example of the unpublished l:JI:1 method will be described in detail based on the drawings.

FIG. 2 is a cross-sectional view showing an example of the method for manufacturing a ceramic roll during the first stage of unexploitation;
An adhesive layer (not shown) made of adhesive tape, adhesive, adhesive, etc.
A large number of spherical, granular, or curved surfaces α)-t!
Lamic body +21 +21...Insert many of these (
1) Three tube bodies +21 +21... All the above tube bodies (5
) Inner cylindrical surface σ] Also fix Z [, F] uniformly along the adhesive layer. (First step) Next, a roll core manufactured by Kinen-en is placed at the center of the tube body 15+17). (Second step) Here, the roll core il + tongs, for example, iron mold]? use

Next, the ceramic body +21 [21...] and the Kinman roll core tl were fixed along the adhesive layer on the inner surface of the front male tube (5).
+ Thermosetting 1/) liquid resin (31?) is injected between the outer layer and the outer wall. (3rd step) Here, @♂ liquid resin (3) is used as liquid urethane resin or epoxy resin. Naturally, the resin (3) also enters the ceramic body +21 (between the ceramic body +21 and the inter-insertion).

Next, the resin is stiffened by means of the above-mentioned resin (heat spooning, etc.). (Fourth step) When the resin (31?) is heated in this manner,
The ceramic body (2) is molded with the resin (31) as shown in FIG.

After that, the tube body (51?) is removed, and a ceramic roll (41) as shown in Figure 2 is completed.

7 U3N crawl + 41 H configured like
For example, Ushio 11 is used as a roll for the conveyor belt, but conveyor belts and Cera 3/Soku
14) Due to the friction of the ceramic roll 141
Even if the ceramic roll is worn out, the ceramic roll (41, Figure 3, Figure 1b, Figure 4) will be formed, and if it becomes spherical,
<Granular or curved surface? Ceramic body +21 +21
... (1) Even in a state where it has been worn to the point where it has cracked in half, many of these σ] Ceramic body +21121...
Geki 8ji (made at 31 and has a strong color fading).

Also, as mentioned earlier, the two Sera three bodies arranged in a cylindrical shape i21121...? The resin mold is made into a mold with a diameter of +31 U), the cylindrical degree is machined, and the resin mold W is cut.
-In particular, ceramic body (2)...? When wrapped with the resin (3), the adhesive strength of both of them is stable, the workability is good, and the manufacturing cost is low.

The above is an embodiment of the first invention σ) of the present invention.

Next, regarding the second intermediate embodiment of the present invention [σ] In the second embodiment of the invention, the pipe body (5
1? First, it is rotated at high speed.
Inner K multi & rl) Ceramic body (21+21...?
put in.

In this way, during high-speed rotation σ) When the ceramic body + 21 + 21...? is inserted into the tube (51), each ceramic body (21 (2)...) )
σ) which is uniformly distributed along the inner surface. (First step) From the second step to the final process, the first invention)'
Similarly, a ceramic roll 14) as shown in Fig. 2 can be obtained even with the manufacturing method described above.

The second invention and the embodiments are different from the first invention and the embodiments, and are different from the first invention and the embodiments. ] Since this is the same, detailed explanation will be omitted.

2. If you glue 6 ceramic bodies (21 pieces) and fill them in advance,
The adhesive strength to the resin (3) is further improved.

It goes without saying that if the roll is used, the impact resistance σ of the roll can be further improved.

(G1. Effects of the invention The unique effects of the present invention are as follows.

That is, if the present invention q) is made during the first firing, the ceramic body +21 +21.
... can be molded with resin (31) in the final manufacturing process, so good cylindricity can be obtained with a simple manufacturing method. Said ceramic body +21121・
Ceramic body (2) Phi] Resin (3
The adhesive strength to 1 is stable, and in addition, the troublesome work of pasting a large number of ceramic Aft'c as in the past is unnecessary) (=, significant improvement in workability compared to the conventional one) This has the effect of reducing manufacturing costs.

Further, according to the second aspect of the present invention, in addition to the effect of the first aspect, the following effect can be obtained by adding λ. In other words, since the first step can be cut into pieces, the manufacturing method can be made even simpler if only the manufacturing equipment is required.

[Brief explanation of the drawing]

FIG. 1 is an example of the method for manufacturing a ceramic roll according to the present invention. Figure 2 is a cross-sectional view of a ceramic roll manufactured using the same force method, Figure 3 is a partial cross-sectional view of the roll shown in Figure 2, and Figure 4 is the state of wear. Partial cross-sectional view of f, Fig. 5 shows the conventional seven rolls. The side view shown in FIG. 6 is a sectional view of FIG. 5. +11...Metal roll core (2 pieces...Cera 3 piece body (31...Resin (51...Tube body)

Claims (2)

[Claims] (1) The process of placing a large number of spherical, granular, or curved ceramic bodies in a tube with an adhesive layer formed on the inner surface, and placing these ceramic bodies along the inner surface of the tube, and attaching metal to the axis of the tube. The process consists of a step of arranging a roll core made of metal, a step of injecting a thermosetting liquid resin between the ceramic body placed along the inner surface of the pipe body and the metal roll core, and a step of thermosetting the resin. Method of manufacturing ceramic rolls. (2) A process in which a large number of spherical, granular, or curved ceramic bodies are placed inside a tube rotating at high speed, and the ceramic bodies are placed along the inner surface of the tube by centrifugal force; The process consists of a step of arranging a roll core made of metal, a step of injecting a thermosetting liquid resin between the ceramic body placed along the inner surface of the pipe body and the metal roll core, and a step of thermosetting the resin. Method of manufacturing ceramic rolls.