JPS595476Y2 - Coating device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a mold coating device that applies a mold coating agent to a core.

For example, when centrifugally casting cast iron pipes, a core is used to form the socket, but the work of painting the core was previously done entirely by hand. The efficiency was very poor and the quality was inconsistent.

The purpose of the present invention is to provide a mold coating device that can efficiently obtain high quality molds, and one embodiment thereof will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a lifting platform that is driven up and down by a pantograph mechanism, etc., on which a bearing stand 3 is mounted.
, a base frame 2 on which a cylinder device mount 4 and a stopper mount 5 are erected is attached.

A swing frame 8 is fixed to a shaft body 7 which is rotatably supported by a pair of bearings 6 a and 6 b fixed on a bearing stand 3 .

A swing operation lever 9 extends from the lower surface of the swing frame 8, and brackets 10a, 1 are attached to the cylinder device mounting base 4.
A piston rod end member 12 of the swinging drive cylinder device 11, which is swingably supported via the shaft 0b, is connected to the tip of the swinging operation lever 9 via a pin 13.

Reference numerals 14 and 15 indicate stoppers that are cut from bolts screwed into the stopper mounting base 5. The stopper 14 sets the horizontal attitude of the swing frame 8, and the stopper 15 sets the vertical attitude.

That is, when the cylinder device 11 is retracted, the swing frame 8 comes into contact with the stopper 14 to maintain its horizontal position as shown in FIG. 1, and when the cylinder device 11 is extended, the third
As shown in the figure, the swing frame 8 comes into contact with the stopper 15 and maintains its vertical posture.

16.17 are bearings arranged on the swing frame 8 at intervals in a direction perpendicular to the longitudinal direction of the shaft body 7;
6 and 17 rotatably support a rotating shaft 18 whose one end extends long from the swing frame 8, and a core fitting portion 19 is provided at one end 18a of the rotating shaft.

In the illustrated example, the core fitting portion 19 is a large-diameter fitting ring held between a receiving plate 20 fixed near one end of the rotating shaft and a nut 21 screwed into a threaded portion at one end of the rotating shaft. It is separated from the body 22a and the small diameter fitting body 22b.

A gear 23 is fitted to the other end 18b of the rotating shaft 18, and a pinion 25 fitted to the output shaft of a drive motor 24 meshes with the gear 23.

The drive motor 24 is fixedly supported by a bracket 26 erected from the swing frame 8 .

In addition, in FIG. 1, A is the core to which the coating mold is applied, 27
is a mold coating material container, B is a mold coating agent, and in Fig. 3, 2
8 is a core receiving pallet, and 29 is a roller conveyor for conveying the core receiving pallet.

In the above configuration, the rotating shaft 18 is rotated by the motor 24 with the swing frame 8 in a horizontal position and the core A fitted in the core fitting part 19 as shown in FIG. Apply a mold coating agent to the outer periphery of child A and perform mold coating.

Application methods include immersing the core A in the coating agent B in the coating agent container 27 and rotating it as shown in the figure, or applying it to the outer periphery of the valve hole with a brush, or by spraying. It may also be applied by coating.

When the application of the molding agent to the outer periphery of the core hole is completed, the cylinder device 11 is extended and the swing frame 8 is placed in a vertical position as shown in FIG. A roughly U-shaped pallet 28 having a notch 28a that engages with the core A is placed on the roller conveyor 29, with the notch 28a facing the core fitting part 19, and then the lifting platform 1 lower.

Then, the core A is supported on the pallet 28, and one end 18a of the rotating shaft is lowered below the conveying surface of the roller conveyor 29, so that the pallet 28 is pushed and the core A is sent to the next drying oven.

Thereafter, the lifting table 1 is raised and the unprocessed core A is fitted into the core fitting part 19. When the lifting limit is reached, the cylinder device 11 is contracted to return to the state shown in FIG. Apply the mold as described above by rotating 24.
The same operation is repeated thereafter.

According to the mold coating device of the present invention, as is clear from the above explanation, the mold coating agent can be easily applied to the outer periphery of the core fitted in the core fitting part rotating around the horizontal axis. Moreover, the coating agent can be applied uniformly over the entire circumference, and by holding the mold in a vertical position after application, the core can be removed without damaging the coating mold, and a new core can be easily fitted. Ru.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, with Figure 1 being a front view and Figure 2 being a front view.
The figure is a plan view, and FIG. 3 is a front view in a vertical position. 1... Lifting platform, 3... Bearing stand, 6a,
6b... Bearing, 7... Shaft body, 8...
... Swinging frame, 9... Swinging operation lever,
11... Rocking drive cylinder device, 14.15.
...stopper, 16.17...bearing,
18... Rotating shaft, 19... Core fitting part, 23... Gear, 24... Motor, 2
5... Pinion, A... Core.

Claims (1)

[Scope of utility model registration request] A swing frame capable of swinging between a horizontal position and a vertical position is provided on the lifting platform, and a swing drive means is provided, and a core fitting portion is provided at one end of a rotating shaft rotatably supported by the swing frame. What is claimed is: 1. A mold coating device characterized in that a rotational drive means is connected to the other end of a rotational shaft.