JPH0357322Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications The present invention relates to a mold coating device for coring.

BACKGROUND ART As shown in FIG. 5, when pouring molten metal into a rotary mold 50 and centrifugally casting a cast iron pipe 52 having a joint socket 51 at one end, the inner surface of the socket 51 is
A core ring 54 for molding 3 into a predetermined shape is attached to the end surface of the rotary mold 50. Here, it is necessary to apply a coating agent to the outer surface of the core ring 54 in advance, and conventionally, a hand brush, spray, or the like is used for this purpose.

Problems that the invention aims to solve: However, the former method of painting by hand brush does not improve work efficiency, and the latter method, which uses a spray, contaminates the working environment due to scattering of the coating agent, and furthermore, There is a problem that uneven coating tends to occur at the end.

The present invention solves the above-mentioned problems, and aims to provide a coring mold coating device that can efficiently and uniformly coat a mold coating agent without scattering it.

Means for Solving the Problems In order to solve the above problems, the present invention provides a core ring support rotating body that rotates a core ring having a flange portion formed at right angles at one end of the ring portion, and a handle. A brush whose bristles are oriented at a 45 degree angle, and this brush is rotated 180 degrees to switch the bristles into contact with either the outer peripheral surface of the ring portion or the inner surface of the flange portion from one side to the other. This configuration includes an actuator that moves the actuator, and a moving table that supports the actuator and is movable in two horizontal directions orthogonal to each other.

Effect According to the above configuration, while the core ring is attached to its support rotating body and rotated, the movable table keeps the bristles of the brush in contact with the outer peripheral surface of the ring part of the core ring. Supply a molding agent and paint the outer peripheral surface of the ring part. Thereafter, by operating the actuator, the tip of the brush is switched to contact with the inner surface of the flange, thereby painting the inner surface of the flange. Here, in the order of operation, the bristles were brought into contact by switching from the ring part to the flange part, but in contrast, it is also possible to perform painting by switching from the flange part to the ring part.

Embodiment In FIGS. 1 and 2, an X-movement table 3 serving as a moving table rides on a first rail 2 supported horizontally by a fixed member 1, and protrudes from the upper part of one end of the first rail 2. A first cylinder device 5 is installed between the bracket 4 and the X-movement table 3. That is, the X-movement table 3 can freely run on the first rail 2 in the X direction by the expansion and contraction movement of the first cylinder device 5. A second rail 7 on which a Y-movement table 6 as another movable table is mounted is provided horizontally on the upper surface of the X-movement table 3 at right angles to the first rail 2. The Y-movement table 6 is movable in the Y direction on the second rail 7 by the expansion and contraction of a second cylinder device 8 installed between the Y-movement table 3 and the X-movement table 3 . X motion table 3 and Y motion table 6
are provided with limit switches 9 and 10 for regulating their advancement limits.

One end of an arm 14 is fixed to a support 11 projecting upward from the Y-movement table 6 with a bolt 12 and a nut 13. Bolt hole 15 of strut 11
is a long hole in the vertical direction, and by loosening the nut 13, the position of the arm 14 can be adjusted in the vertical direction. Further, the arm 14 has a plate 16 fixed to it by bolts 17 and nuts 18. The bolt hole 19 in this case is a long hole in the left and right direction,
By loosening the nut 18, the plate 16
You can adjust the position in the left and right direction. 20
is a rotary structure actuator, plate 1
It is attached to 6. A handle (rotating shaft) 22 of the brush 21 projects diagonally downward from the actuator 20, and the vicinity of the tip of the handle 22 is supported by the plate 16 by a bearing 23, and as shown in FIG. It is oriented at 45 degrees to the handle 22.

Reference numeral 25 denotes a truck, which can run in the Y direction on a third rail 26 laid in parallel to the second rail 7 at the front of the first rail 2. The truck 25 is provided with a third limit switch 27 for regulating its forward limit. The rotary drive device 28 installed on the trolley 25 includes a rotating shaft 29 that projects obliquely upward, and this rotating shaft 29 is provided with a core ring support rotating body 32 consisting of a large diameter portion 30 and a small diameter portion 31. There is.

The core ring 33 has a flange portion 35 formed at right angles to one end of the ring portion 34, and is fitted obliquely to the outer periphery of the small diameter portion 31 of the core ring support rotating body 32, so that the flange portion 35 is formed at right angles to one end of the ring portion 34. It is axially received on the end face and adapted to rotate about the coring centerline 36.

When the core ring 33 is attached to the supporting rotary body 32, the center line 37 of the handle 22 of the brush 21 is aligned with the outer peripheral surface 34a of the ring portion 34 and the flange portion 35, as shown in FIGS. 3 and 4. Inner surface 35
It is configured to form an angle of 45 degrees with respect to a. Therefore, when the handle 22 is rotated 180 degrees,
The direction of the bristles 24 changes, and the bristles 24 switch from one of the outer circumferential surface 34a of the ring portion 34 and the inner surface 35a of the flange portion 35 to contact the other. Further, the bristles 24 are connected to the outer circumferential surface 34a and the inner surface 35a of the core ring 33.
has a width such that it touches the entire width of the In FIG. 1, 38 is a coating agent supply tube, the tip of which is located near and above the tip 24 of the bristles.

Next, the operation based on the above configuration will be explained. First, the core ring 33 is attached to the supporting rotating body 32, and the truck 25 is moved forward. When the trolley 25 is stopped by the operation of the limit switch 27, the core ring support rotating body 32 is driven to rotate the core ring 33 in the direction of arrow A and move the X-movement table 3 and Y-movement table 6 forward. Here, brush 2
When the bristles 24 of the brush 21 are set in the direction shown in FIG. The outer circumferential surface 34a of the ring portion 34 is contacted. Therefore, when the coating agent is dripped and supplied from the tip of the tube 38 to the bristles 24 of the brush 21, the coating agent is continuously applied from the bristles 24 to the outer circumferential surface 34a of the ring portion 34 over its entire width, and the outer circumferential surface The entire circumference of 34a is covered with mold coating agent.

When the coating of the outer peripheral surface 34a is completed, the handle 22 is rotated 180 degrees by the actuator 20 while the core ring 33 is kept rotating, and the bristles 24 are attached to the inner surface 35a of the flange portion 35 as shown in FIG. Then, the contact is made and the dropwise supply of the coating agent to the tips 24 of the bristles is continued. As a result, from the tip 24 to the inner surface 35
The mold coating agent is continuously applied to the entire width of the inner surface 35a, and the entire circumference of the inner surface 35a is covered with the mold coating agent.

After painting, the X-movement table 3 and the Y-movement table 6 are moved backward to release the brush 24 from the core ring 33, and the cart 25 is moved to transport the core ring 33 to the next process. Paint the next core ring in the same manner.

In addition, as for the operation sequence, the bristles 24 are
Although the contact was switched from 4a to the inner surface 35a,
On the contrary, it is also possible to perform painting by switching from the inner surface 35a to the outer circumferential surface 34a.

Effects of the Invention As described above, according to the core ring coating device of the present invention, the brush used for coating is applied to the outer peripheral surface of the ring portion and the inner surface of the flange portion of the core ring rotating in a fixed position. Since the structure is such that mechanical contact can be made at a constant angle and constant pressure, each of the above surfaces can be coated efficiently and uniformly, and as a result, it is possible to improve quality and reduce costs. Further, by applying the coating using such a brush coating method, there is no scattering of the coating agent, and a good working environment is maintained. Furthermore, the brush handle is rotated 180 degrees to change the direction of the bristles, and the bristles are switched from one side to the other to make contact with the outer peripheral surface of the ring part and the inner surface of the flange part. By receiving the sliding force in the opposite direction, that is, the rotational force of the core ring, the brush is prevented from curling, and the life of the brush can be extended.

[Brief explanation of the drawing]

Fig. 1 is a front view of a coring mold coating device according to an embodiment of the present invention, Fig. 2 is a left side view with a part of Fig. 1 omitted, and Figs. 3 and 4 are views of a brush. FIG. 5, an enlarged view showing the contact state, is an explanatory view of a general centrifugal casting apparatus. 3...X moving table (moving table), 6...
Y movement table (moving table), 20... Actuator, 21... Brush, 22... Handle, 24...
Hair tip, 32... Coring support rotating body, 33...
Core ring, 34...Ring part, 34a...Outer peripheral surface, 35...Flange part, 35a...Inner surface.

Claims (1)

[Scope of utility model registration request] A core ring support rotating body that rotates a core ring with a flange formed at a right angle at one end of the ring part on its center line, a brush whose bristles are oriented at 45 degrees with respect to the handle, and a core ring that rotates the core ring with a flange formed at a right angle at one end of the ring part; an actuator that rotates to switch the bristles into contact with either the outer circumferential surface of the ring portion or the inner surface of the flange portion; and an actuator that supports the actuator and is movable in two horizontal directions orthogonal to each other. A coring mold coating device characterized by being equipped with a movable table.