JPS6325820B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dusting device for applying powder of molybdenum disulfide or the like to rubber products such as seal rings and rubber valves.

For example, powder such as molybdenum disulfide is applied to rubber products such as seal rings and rubber valves to prevent them from sticking to each other and to reduce sliding resistance. Rubber products, powder, and media (powder application medium: steel balls are used to strike the rubber product and adhere the powder) are placed in a movable cylindrical container, and by rotating this cylindrical container, the inside of the container is in rubber products,
Mejia and powder are mixed together, and the powder is adhered by the dusting action of Mejia.

However, in conventional devices of this type, rubber products, media, and powder are put into a container and mixed together, and the dusting operation ends with these mixed. This requires work to separate the powder and powder, and this separation work is done manually by the worker, which is complicated and inefficient, and furthermore, there is a problem that the powder is scattered in the air and worsens the working environment. It was hot.

Therefore, this invention focuses on the above-mentioned points, and makes it possible to efficiently and uniformly apply dusting material to objects to be dusted, such as rubber products, and to immediately and easily take out the dusted object after dusting without deteriorating the work environment. The purpose is to provide a dusting device that can.

For this purpose, the present invention provides an object to be dusted, a dusting material,
and a dusting device that mixes the media while rotating in a container and attaches the dusting material to the object to be dusted, which has a net-like inner peripheral wall through which the medium can pass but not the object to be dusted, and a mesh inner peripheral wall through which the medium cannot pass. The powder dusting device is comprised of an inner cylinder having a net-like outer circumferential wall and rotatably supported in an inclined manner, and an outer cylinder rotatably attached to the outer circumference of the inner cylinder.

Embodiments of the present invention will be described below based on the drawings.

Figure 1 is a cross-sectional view of the dusting device, and Figure 2 is its A.
-A cross-sectional view, and FIG. 3 shows the B-B cross-sectional view, 1 is an inner cylinder, which is rotatable and tilted via a bearing by a support part 2 fixed to a base. An input port 1a for an object to be powdered, for example, a seal ring 20 made of rubber, is formed at the upper end. A net-like inner circumferential wall 1b is provided in the middle part of the inner cylinder 1 by a cylindrical wire mesh, and a net-like outer circumferential wall 1c is similarly provided concentrically at intervals on the outer periphery of the net-like inner circumferential wall 1b. A seal ring 20 is inserted inside the net-like inner peripheral wall 1b.
A mesh 21 is inserted between the net-like outer peripheral wall 1c and the mesh of the mesh-like outer peripheral wall 1c, but the mesh of the mesh-like outer peripheral wall 1c is formed small enough to prevent the mesh 21 from passing through.
The mesh of b passes through the media 21 and seal ring 2.
It is formed to a size that does not allow 0 to pass through. Reference numeral 1d denotes an outlet of a sealing 20 formed at the lower end of the inner cylinder 1, and the outlet 1d is provided with a lid 3 that opens and closes by the operation of a fluid pressure cylinder 4.
The base of the inner cylinder 1 is connected to a motor 6 by a belt 5 and is rotationally driven. 7 is each 4 on the outer periphery of the inner cylinder 1.
An outer cylinder that is rotatably mounted concentrically through bearings 8 and 9 and surrounds the outer periphery of the inner cylinder.
A space for accommodating the powder of the dusting material is formed between the mesh-like outer peripheral wall 1c and the mesh-like outer peripheral wall 1c. As shown in FIG.
The upper end of the outer tube 7 is supported on the outside of the outer circumference of the bearing 8, and the bearing 9 is supported on the outer circumference of the lower end of the outer tube 7 as shown in FIG. It is supported by four pins 11 protruding from each other at 90 degree intervals, and the inner side of the outer circumference of the bearing 9 is brought into contact with the outer circumference of the discharge port 1d of the inner cylinder 1. The outer cylinder 7 can be independently rotated by a belt 12.
It is connected to the motor 13 via. A sealing member 14 is installed in the gap between the outer cylinder 7 and the inner cylinder 1, and a chute 15 is arranged below the discharge port 1d of the inner cylinder 1 to receive the seal ring 20 discharged after dusting.
Incidentally, an inclined rib (not shown) is attached to the inside of the inner cylinder 1 in order to prevent rotation of the seal ring 20 housed therein and improve the dusting effect.

Next, the operation of the dusting device will be explained.

First, with the lid body 3 closed, a seal ring 20 made of a molded rubber product, for example, is inserted into the inner cylinder 1 from the inlet 1a as an object to be powdered. Then, start the motors 6 and 13 to move the inner cylinder 1 and outer cylinder 7.
Rotate each at a speed of about 60 to 100 rpm and start dusting. Then, due to the relatively high rotational speed, the powder of the dusting material existing between the net-like outer circumferential wall 1c of the inner cylinder 1 and the outer cylinder 7 and the media between the net-like outer circumferential wall 1c and the net-like inner circumferential wall 1b are removed. When the seal ring 21 moves upward as it rotates, it falls into the center of the inner cylinder 1 and enters the center, where the seal ring 20, media 21, and powder are mixed together. At this time,
Powdering is performed by the media 21 acting to strike the powder onto the surface of the seal ring 20, for example about approx.
Powder such as molybdenum disulfide is uniformly adhered to the surface of the seal ring 20 by dusting for about 40 minutes.

Next, the motor 13 is stopped to stop the rotation of the outer cylinder 7, and only the inner cylinder 1 continues to rotate at the same speed for about 30 minutes to perform powder removal work. At this time, since only the inner cylinder 1 rotates and the outer cylinder 7 is kept stationary by a brake device (not shown), the powder inside the inner cylinder 1 falls through the mesh-like inner peripheral wall 1b and the mesh-like outer peripheral wall 1c, and the powder in the outer cylinder 7
and the net-like outer peripheral wall 1c to separate the mixed powder. Thereafter, the motor 6 is decelerated, and while the inner cylinder 1 is rotated at a slow speed of about 5 to 10 rpm, the fluid pressure cylinder 4 is operated to rotate the lid body 3.
is opened, the medial 21 is dropped outside the net-like inner circumferential wall 1b, and the seal ring 20 is separated from the seal ring 20. Then, the powdered seal ring 20 is discharged from the center of the inner cylinder 1 onto the chute 15, and one powder powder is applied. Finish your work. In this manner, the powder and media can be separated from the object to be dusted within the device at the end of dusting, and the dusting can be carried out efficiently and the object to be dusted can be taken out without scattering the powder around.

FIG. 4 is a sectional view of a powder dusting device showing another embodiment. According to this embodiment, the above-mentioned net-like outer peripheral wall is formed as a middle cylinder 30, and the middle cylinder 30 has a bearing 32 on the outer periphery of an inner cylinder 31. , 33, and an outer tube 34 is rotatably attached to the outer periphery of the middle tube 30 via bearings 35, 36, so that it can also rotate relative to the outer tube 34. Inner cylinder 3
1. The inner cylinder 30 and the outer cylinder 34 each have a belt 3
It has a structure in which it is connected to motors 40, 41, and 42 by means 7, 38, and 39, and is independently rotationally driven.
Therefore, in this embodiment, by rotating the inner cylinder 31 slowly while the middle cylinder 30 and the outer cylinder 34 are stopped at the end of dusting, the areas of the medial 21 and the seal ring 20 can be more reliably treated. Can be done.

As explained above, the dusting device of the present invention has a net-like inner peripheral wall through which the media can pass and objects to be dusted cannot pass through, and a mesh-like outer peripheral wall through which the media cannot pass, and the mesh-like inner peripheral wall is coated inside the mesh-like inner peripheral wall. A powdered material is placed between an inner cylinder which is rotatably supported at an angle and a media is inserted between a net-like outer peripheral wall and a mesh-like inner peripheral wall, and a powdered material is rotatably attached to the outer periphery of the inner cylinder. The inner cylinder and the outer cylinder are configured to be rotated independently. Therefore, powder that prevents sticking and reduces sliding resistance can be efficiently and uniformly adhered to the surface of rubber products, etc., and when the dusting is finished, the object to be dusted, the media, and the dusting material are automatically separated. , it is possible to easily take out only the object to be powdered,
Do not cause deterioration of the working environment such as powder scattering around.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, and FIG. 1 is a cross-sectional view of a powder dusting device, FIG. 2 is a cross-sectional view taken along line A-A, FIG. FIG. DESCRIPTION OF SYMBOLS 1...Inner cylinder, 1b...Mesh-like inner peripheral wall, 1c...Mesh-like outer peripheral wall, 7...Outer cylinder, 30...Medium cylinder.

Claims (1)

[Scope of Claims] 1. A dusting device that performs dusting by mixing an object to be dusted, a dusting material, and a media while rotating in a container, and attaching the dusting material to the object to be dusted, wherein the media passes through. A mesh-like inner peripheral wall through which the object to be dusted can pass and a mesh-like outer peripheral wall through which the media cannot pass, and the object to be dusted is placed inside the mesh-like inner peripheral wall, and the object is placed between the outer peripheral wall and the inner peripheral wall. The invention is characterized by comprising: an inner cylinder which is rotatably supported at an incline into which the media is placed; and an outer cylinder which is rotatably attached to the outer periphery of the inner cylinder and which stores the dusting material between the inner cylinder and the inner cylinder. Flour dusting equipment. 2. The powder dusting device according to claim 1, wherein the net-like outer circumferential wall is formed as a middle cylinder that is rotatable with respect to the inner cylinder and the outer cylinder.