JP-2026075794-A - Coating apparatus and coating method

Abstract

[Problem] To provide a coating device that can spray a release agent to a target location without reducing the flow rate. [Solution] A mold release agent application device for applying a mold release agent to a die cast having a fixed type, a movable type, and a slide, comprising: a cassette spray 11 filled with mold release agent and spraying the mold release agent from a nozzle; a movable plate 12 that reflects the mold release agent sprayed from the cassette spray 11; and an extendable bar having one end 13a (see Figure 2) connected to the cassette spray 11 and the other end 13b connected to the movable plate 12 (see Figure 2), extending in the direction from which the mold release agent is sprayed from the cassette spray 11, and having a rotating mechanism 13c (see Figure 2) at the other end 13b that changes the orientation of the movable plate 12. [Selection Diagram] Figure 1

Inventors

• 綾塔 直也

Assignees

• トヨタ自動車株式会社

Dates

Publication Date

20260511

Application Date

20241023

Claims (5)

1. A mold release agent application apparatus for applying a mold release agent to a die casting having a fixed type, a movable type, and a slide, It is filled with a release agent and is a cassette spray that sprays the release agent from the nozzle, A movable plate that reflects the release agent sprayed from the aforementioned cassette spray, The device comprises an extendable bar having one end connected to the cassette spray and the other end connected to the movable plate, extending in the direction from which the release agent is sprayed from the cassette spray, and having a rotating mechanism at the other end that changes the orientation of the movable plate. Coating device.
2. The system further includes a control unit that controls the orientation of the movable plate and the speed at which the orientation is changed by the operation of the rotating mechanism. The coating apparatus according to claim 1.
3. The control unit, The orientation of the movable plate is calculated according to the position where the release agent is to be applied and the reflection angle when the release agent is reflected by the movable plate, and the operation of the rotating mechanism is controlled so that the movable plate is in this calculated orientation. The coating apparatus according to claim 2.
4. The aforementioned movable plate is capable of rotation around three axes. The coating apparatus according to any one of claims 1 to 3.
5. Spray the release agent from the nozzle of the cassette spray bottle filled with the release agent. In a telescopic bar, one end of which is connected to the aforementioned cassette spray, and which extends and extends in the direction from which the release agent is sprayed from the cassette spray, a movable plate is connected to the other end, The orientation of the plate surface can be changed according to the operation of the rotating mechanism provided at the other end of the telescopic bar, and the release agent sprayed from the cassette spray is reflected. Application method.

Description

This disclosure relates to a coating apparatus and a coating method. In recent years, oil-based mold release agents have been used for application to molds used in die casting and casting. These release agents, in particular, exhibit high adhesion and lubricity even to high-temperature molds exceeding 300°C, preventing seizing. Patent Document 1 discloses a coating method that utilizes the electrostatic effect to improve the adhesion rate of the release agent to areas where it is difficult to adhere. Japanese Patent Publication No. 2015-171722 This is a top view showing the coating equipment positioned near the die-casting machine.This is a side view showing an example of an extendable bar.This is a perspective view showing an example of an extendable bar.This is a side view illustrating another shape and operation example of the telescopic bar.This figure shows an example of the operation flow of a coating device. Embodiment 1 The coating apparatus according to this embodiment will now be described with reference to the drawings. Figure 1 is a top view showing the coating apparatus 1 positioned near the die-cast object 2, which is the object to be coated. The coating apparatus 1 comprises a cassette spray 11 filled with a release agent and having a nozzle 11a, a movable plate 12 positioned in front of the nozzle 11a of the cassette spray 11 and being movable, an extendable bar 13 that is extendable and supports the movable plate 12 on the cassette spray 11, and a control unit 14. The die-casting apparatus 2 comprises a movable mold, a fixed mold, and a slide 21. As shown in Figure 1, the slide 21 has irregularities. The coating apparatus 1 will be described as one that applies a release agent to the surface of the slide 21 where the irregularities are formed. The cassette spray 11 is a spray that is filled with a release agent and sprays the filled release agent from the nozzle 11a. The cassette spray 11 can change the flow rate when spraying the release agent according to the control of the control unit 14. The movable plate 12 is a thin, plate-like plate. The movable plate 12 is connected to the end of the telescopic bar 13 in a way that allows the orientation of the plate surface to be changed, and its orientation can be changed according to the control of the control unit 14. In the following, changing the orientation of the movable plate 12 may be referred to as changing the variable angle. As a more specific example, the movable plate 12 is connected to the telescopic bar 13 via a rotating mechanism 13c provided at its end 13b, as described later. The control unit 14 can change the orientation of the movable plate 12 by controlling the operation of the rotating mechanism 13c. Figure 2 is a side view showing an example of an extendable bar 13 used in the coating apparatus 1, and Figure 3 is a perspective view. As shown in Figure 3, in the coating apparatus 1, there can be two extendable bars 13 supporting one cassette spray 11 and one movable plate 12. Note that the number of telescopic bars 13 is not limited to two; it can be one or three or more. Since two identical telescopic bars have the same configuration, the configuration of a single telescopic bar 13 will be described here. The telescopic bar 13 has one end 13a connected to the cassette spray 11 and the other end 13b connected to it, and extends along the direction in which the release agent is sprayed from the cassette spray 11. For example, the length of the telescopic bar 13 can be freely changed in the extending direction according to the control of the control unit 14. Furthermore, as shown in Figures 2 and 3, a rotating mechanism 13c is provided at the end 13b of the telescopic bar 13. The rotating mechanism 13c operates based on the control of the control unit 14, allowing the orientation of the movable plate 12 to be freely changed. Here, the arrows shown in Figure 2 illustrate an example of the operating direction of the movable plate 12, and the rotating mechanism 13c is designed to rotate around one axis. On the other hand, Figure 4 shows an example of another shape and operation of the telescopic bar 13. As shown in Figure 4, the telescopic bar 13 is not merely a shape that extends in one direction; it may also be partially bent. Furthermore, the arrows shown in Figure 4 illustrate an example of the operating direction of the movable plate 12. The rotating mechanism 13c may rotate 360°, that is, around three axes perpendicular to each other (X, Y, and Z axes), allowing the movable plate 12 to be adjusted to any orientation. In this case as well, the telescopic bar 13 can be extended or retracted in accordance with the control of the control unit 14, so that the distance between the movable plate 12 and the cassette spray 11 changes. In the coating device 1, the release agent is sprayed from the cassette spray 11 and reflected at a predetermined angle by the movable plate 12 to apply the release agent to the slide 21. Therefore, it