Release agent application device

Abstract

To coat a fixed mold and a movable mold with a mold release agent at low cost.SOLUTION: A mold release agent coating device comprises: a fixed type nozzle 21 having a fixed type nozzle base part 11, first slit nozzles 14 arranged along a cavity, and a first right-angled nozzle 15 capable of jetting a mold release agent in a direction to a fixed mold 2 and a direction along the cavity; a movable type nozzle 22 having a movable type nozzle base part 12, second slit nozzles 16 arranged along the cavity, and a second right-angled nozzle 17 capable of jetting the mold release agent in a direction to a movable mold 3 and a direction along the cavity; and shielding means 13 having a first shielding plate 13a disposed between the fixed type nozzle 21 and the movable type nozzle 22 and extending in the direction along the cavity, and a second shielding plate 13b disposed at an end part of the first shielding plate 13a and extending in a direction different from that of the first shielding plate 13a. The shielding means 13 shields flow of a jetted object from one of the fixed type nozzle 21 and the movable type nozzle 22 toward the other.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a release agent application device. [Background technology]

[0002] In the die casting process, the release agent is applied to the fixed die and the movable die in a different order from each other in the process of applying the release agent. Applying the release agent to the fixed die and the movable die in order causes an increase in the number of cycles.

[0003] One example of technology in this field is JP 2007-029984 A. The release agent application device described in this publication discloses that a release agent is applied to both the fixed and movable molds by a spray head equipped with multiple nozzles. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2007-029984 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, when applying the release agent to both the fixed and movable dies simultaneously using the above-mentioned release agent application device, the release agent may bounce off the die and adhere to the opposing die. In this case, an amount of release agent different from the expected amount may adhere to the fixed or movable die.

[0006] More specifically, when applying a release agent to both the fixed and movable dies, the release agents and the discharged air may interfere with each other, causing turbulence. In this case, it may be difficult to control the state of the turbulence, and this may prevent the appropriate amount of release agent from adhering to the fixed and movable dies.

[0007] In addition, a conical nozzle is generally used for applying the release agent, and therefore, in order to apply the release agent to the mold, a robot is often used to move the conical nozzle to an appropriate location while applying the agent, but this causes problems such as increased costs for materials required to configure the robot and costs required for controlling the movement of the robot.

[0008] Furthermore, when using a conical nozzle, if the release agent is to be applied to the core in four directions that are approximately perpendicular to the nozzle insertion direction, the nozzle must be moved by a robot and the direction of the nozzle must be changed, which increases the time and cost required to apply the release agent.

[0009] The present invention provides a release agent application device for applying a release agent to a fixed mold and a movable mold at low cost. [Means for solving the problem]

[0010] The release agent applicator according to the present invention is a release agent applicator that is inserted into a cavity between a fixed mold and a movable mold and sprays and applies a release agent to each of the fixed mold and the movable mold, and includes a fixed nozzle having a fixed nozzle base, a first slit nozzle arranged in a direction along the cavity on the fixed nozzle base, and a first right-angle nozzle that protrudes from the fixed nozzle base towards the fixed mold and is capable of spraying release agent in a direction towards the fixed mold and in a direction along the cavity, a movable nozzle base, and a first right-angle nozzle arranged in a direction along the cavity on the movable nozzle base. the movable nozzle having a second slit nozzle attached to a base of the movable nozzle and a second right-angle nozzle protruding from a base of the movable nozzle towards the movable mold and capable of spraying release agent in a direction towards the movable mold and in a direction along the cavity; and a shielding means having a first shielding plate provided between the fixed nozzle and the movable nozzle and extending in a direction along the cavity, and a second shielding plate provided at an end of the first shielding plate and extending in a direction different from that of the first shielding plate, wherein the shielding means shields the flow of the ejected material from either the fixed nozzle or the movable nozzle to the other side. This allows the release agent to be applied to both the fixed and movable dies simultaneously without affecting the application of the release agent to one die on the other die. Effect of the Invention

[0011] This allows the release agent to be applied to the fixed and movable dies at low cost. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is a top view showing a schematic diagram of a release agent application device. [Diagram 2] FIG. [Diagram 3] FIG. 2 is a diagram showing an example of the arrangement of a first slit nozzle. [Figure 4] FIG. 2 is an enlarged top view of the tip of the first right-angle nozzle. [Diagram 5]FIG. 2 is a diagram showing an example of a flow of applying a release agent using a release agent application device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a top view showing a state in which a release agent applicator 1 is disposed between a fixed mold 2 and a movable mold 3. Fig. 2 shows an example of a side view of the release agent applicator 1, the fixed mold 2, and the movable mold 3 shown in Fig. 1.

[0014] The fixed mold 2 and the movable mold 3 are disposed so as to face each other in the X direction, and are spaced apart from each other in the X direction. The fixed mold 2 and the movable mold 3 have shapes having a predetermined length in the Y direction, which is perpendicular to the X direction, and in the Z direction. The release agent applicator 1 will be described as being disposed between the fixed mold 2 and the movable mold 3 in the X direction.

[0015] The movable mold 3 can move in the X direction, and the distance between it and the fixed mold 2 can be changed. In the following description, the direction along the cavity is the Y direction, but it is not limited to this direction as long as it is a direction approximately perpendicular to the X direction. Furthermore, in the release agent applicator 1, the direction toward the fixed mold 2 or the movable mold 3 is the X direction, but angular deviation in the Y direction or Z direction is allowed.

[0016] As shown in FIG. 1, the release agent application device 1 is a spray cassette including a fixed nozzle base 11, a movable nozzle base 12, a plurality of shielding means 13, a first slit nozzle 14 provided on the fixed nozzle base 11, a first right-angle nozzle 15, a second slit nozzle 16 provided on the movable nozzle base 12, and a second right-angle nozzle 17.

[0017] In addition, a fixed nozzle 21 is formed by the fixed nozzle base 11, the first slit nozzle 14, and the first right-angle nozzle 15, and a movable nozzle 22 is formed by the movable nozzle base 12, the second slit nozzle 16, and the second right-angle nozzle 17.

[0018] 1, the fixed nozzle base 11 is disposed to extend in the Y direction. A first slit nozzle 14, which is a plurality of slit nozzles, is disposed on the fixed mold 2 side of the fixed nozzle base 11, and a first right-angle nozzle 15 is provided to protrude toward the fixed mold 2.

[0019] Specifically, the fixed nozzle base 11 is formed to have a length of about 800 mm in the Y direction. The length of this fixed nozzle base 11 corresponds to the release agent application range for the fixed mold 2 in the Y direction.

[0020] The first slit nozzle 14 is a nozzle group having a plurality of nozzle parts arranged continuously in the Y direction along the fixed nozzle base 11. As shown in Fig. 3, each nozzle part constituting the first slit nozzle 14 can also be shaped to have a plurality of jetting ports. Fig. 3 does not show the first right-angle nozzle 15.

[0021] Typically, the first slit nozzle 14 is formed with small nozzles arranged along the fixed nozzle base 11, and can eject a fluid. As an example, the fluid, a release agent, and air can be ejected at about 0.4 MPa.

[0022] In the release agent application device 1, by moving in the Z direction with the release agent sprayed from the first slit nozzle 14, the release agent can be uniformly applied to the surface of the fixed mold 2 facing the first slit nozzle 14.

[0023] The first right-angle nozzle 15 is a nozzle that extends from approximately the center in the Y direction of the fixed nozzle base 11 toward the fixed mold 2, i.e., in the X direction. As shown in Fig. 4, the tip of the first right-angle nozzle 15 is provided with an ejection port 15a that can apply the release agent in the X direction and a plurality of ejection ports 15b that can apply the release agent in a direction perpendicular to the X direction.

[0024] That is, when the release agent is ejected with the first right-angle nozzle 15 inserted into the fixed mold 2, the release agent is ejected from the ejection port 15a in the front direction toward the opposing surface where the tip of the first right-angle nozzle 15 faces, and from the ejection port 15b in the side direction toward the core. The direction in which the ejection material is ejected from the ejection port 15b can be said to be the direction along the cavity defined by the fixed mold 2 and the movable mold 3.

[0025] The movable nozzle base 12 is disposed to extend in the Y direction, similar to the fixed nozzle base 11. The movable nozzle base 12 is disposed closer to the movable mold 3 than the fixed nozzle base 11.

[0026] A second slit nozzle 16 consisting of a plurality of slit nozzles is disposed on the movable mold 3 side of the movable nozzle base 12, and a second right-angle nozzle 17 is provided so as to protrude toward the movable mold 3.

[0027] Specifically, the movable nozzle base 12 is formed to have a length of about 800 mm in the Y direction. The length of the movable nozzle base 12 corresponds to the release agent application range for the movable mold 3 in the Y direction.

[0028] The second slit nozzle 16 is a nozzle group in which a plurality of nozzle portions are provided consecutively in the Y direction along the movable nozzle base 12. Note that the second slit nozzle 16 provided in the movable nozzle base 12 is provided in the same manner as the first slit nozzle 14 provided in the fixed nozzle base 11, and therefore a description thereof will be omitted.

[0029] The second right-angle nozzle 17 is a nozzle that extends from approximately the center of the movable nozzle base 12 in the Y direction toward the movable mold 3, i.e., in the X direction. Like the first right-angle nozzle 15 provided on the fixed nozzle base 11, the tip of the second right-angle nozzle 17 is provided with an outlet that can apply the release agent in the X direction and multiple outlets that can apply the release agent in a direction perpendicular to the X direction. The shape and operation of the second right-angle nozzle 17 are similar to those of the first right-angle nozzle 15.

[0030] As shown in Figures 1 and 2, the shielding means 13 has a first shielding plate 13a that separates the fixed nozzle base 11 and the movable nozzle base 12 in the X direction, and two second shielding plates 13b arranged to sandwich the fixed nozzle base 11 and the movable nozzle base 12 in the Y direction.

[0031] 2, the first shielding plate 13a extends in a direction along the cavity. Here, the first shielding plate 13a is formed to be 800 mm in the Y direction and 400 mm in the Z direction, and has a surface on the X direction side.

[0032] The first shielding plate 13a is disposed between the fixed nozzle 21 and the movable nozzle 22, more specifically, between the fixed nozzle base 11 and the movable nozzle base 12. The first shielding plate 13a shields the fixed mold 2 side and the movable mold 3 side in the release agent applicator 1.

[0033] Specifically, the release agent, etc., sprayed from the fixed nozzle 21 is blocked by the first shielding plate 13a, and is therefore prevented from flowing toward the movable nozzle 22, thereby preventing the generation of turbulent flow. Similarly, the release agent, etc., sprayed from the movable nozzle 22 is blocked by the first shielding plate 13a, and is therefore prevented from flowing toward the fixed nozzle 21, thereby preventing the generation of turbulent flow.

[0034] The second shielding plate 13b is provided at an end of the first shielding plate 13a and extends in a direction different from that of the first shielding plate 13a. Here, the second shielding plate 13b is two shielding plates extending in the XZ direction and provided perpendicular to the first shielding plate 13a, and is connected to both ends of the first shielding plate 13a in the Y direction, one on each side.

[0035] For example, the two second shielding plates 13b are plates having the same size and a length of 400 mm in the Z direction. In addition, both ends of each of the two second shielding plates 13b in the X direction are disposed close to the fixed die 2 and the movable die 3.

[0036] As a result, the release agent etc. ejected from the fixed nozzle 21 is blocked by the second shielding plate 13b, so that leakage from the Y direction is suppressed, and the generation of turbulence is suppressed. Similarly, the release agent etc. ejected from the movable nozzle 22 is blocked by the second shielding plate 13b, so that leakage from the Y direction is suppressed, and the generation of turbulence is suppressed.

[0037] Here, the flow of application of the release agent by the release agent applicator 1 will be described with reference to FIG.

[0038] First, the release agent applicator 1 is disposed between the fixed mold 2 and the movable mold 3 in the X direction, and disposed above them in the Z direction.

[0039] The release agent applicator 1 performs air blowing toward the fixed mold 2 and the movable mold 3 while moving down (S1).

[0040] Specifically, in the fixed nozzle 21, air is sprayed from the first slit nozzle 14 toward the fixed mold 2, and in the movable nozzle 22, air is sprayed from the second slit nozzle 16 toward the movable mold 3, while the entire release agent applicator 1 is lowered.

[0041] The release agent application device 1 applies the release agent from the first right-angle nozzle 15 and the second right-angle nozzle 17 with the first right-angle nozzle 15 inserted into the fixed mold 2 and the second right-angle nozzle 17 inserted into the movable mold 3 (S2).

[0042] At this time, the first right-angle nozzle 15 applies the release agent toward the core in a direction perpendicular to the direction extending toward the fixed mold 2, i.e., perpendicular to the X direction. Similarly, the second right-angle nozzle 17 applies the release agent toward the core in a direction perpendicular to the direction extending toward the movable mold 3.

[0043] Thereafter, the release agent applicator 1 applies the release agent to the fixed mold 2 and the movable mold 3 while ascending (S3).

[0044] Specifically, the fixed nozzle 21 sprays the release agent from the first slit nozzle 14 toward the fixed mold 2, and the movable nozzle 22 sprays the release agent from the second slit nozzle 16 toward the movable mold 3, while the entire release agent applicator 1 ascends.

[0045] As a result, the three steps of positioning the release agent applicator 1 between the fixed mold 2 and the movable mold 3 by lowering it, blowing air onto the fixed mold 2, and blowing air onto the movable mold 3, which were conventionally performed as separate steps, can be performed simultaneously as one step in S1. In particular, since the fixed mold nozzle 21 and the movable mold nozzle 22 are provided with a slit nozzle and a right-angle nozzle, it is possible to reduce the number of actuators required for operating the nozzles in accordance with the location to which the release agent is applied, which was conventionally performed.

[0046] Furthermore, the three steps of applying the release agent to the fixed mold 2, applying the release agent to the movable mold 3, and raising the release agent applicator 1, which were conventionally performed as separate steps, can be performed simultaneously as a single step in S3.

[0047] Furthermore, by providing the shielding means 13, the release agent applicator 1 can simultaneously blow air and apply the release agent to the fixed mold 2 and the movable mold 3 without affecting each other.

[0048] Therefore, with the release agent application device 1 of the present invention, it is possible to reduce the hardware costs by reducing the number of robot parts, reduce the software costs for control by simplifying the control, and reduce the manufacturing time costs by making it possible to apply the release agent in a short time.

[0049] The present invention is not limited to the above-described embodiment, and can be modified as appropriate without departing from the spirit of the present invention. In other words, the above description has been omitted or simplified as appropriate for the purpose of clarity, and a person skilled in the art can easily modify, add, or convert each element of the embodiment within the scope of the present invention.

[0050] For example, the nozzle provided in the first right-angle nozzle 15 may be configured to have only the nozzle 15b for applying the release agent to the side, without providing the nozzle 15a for applying the release agent to the front. The same applies to the second right-angle nozzle 17. [Explanation of symbols]

[0051] 1 Release agent application device 2 Fixed type 3 Movable type 11 Fixed nozzle base 12 Movable nozzle base 13 Shielding means 13a First shielding plate 13b Second shielding plate 14 First slit nozzle 15 First Right Angle Nozzle 15a spout 15b spout 16 Second slit nozzle 17 Second Right Angle Nozzle 21 Fixed nozzle 22 Movable nozzle

Claims

[Claim 1] A release agent applicator that is inserted into a cavity between a fixed mold and a movable mold arranged opposite to each other and sprays and applies a release agent to each of the fixed mold and the movable mold, a fixed nozzle having a fixed nozzle base, first slit nozzles arranged in a vertical direction perpendicular to a separation direction in which the fixed mold and the movable mold are separated from each other on the fixed nozzle base, and a first right-angle nozzle protruding from the fixed nozzle base in a fixed mold direction facing the fixed mold and having a first ejection port for ejecting a release agent in the fixed mold direction and a second ejection port capable of ejecting a release agent in a first side direction perpendicular to the fixed mold direction; a movable nozzle having a movable nozzle base, second slit nozzles arranged in the vertical direction on the movable nozzle base, and a second right-angle nozzle protruding from the movable nozzle base in a movable mold direction facing the movable mold and having a third nozzle for spraying a release agent in the movable mold direction and a fourth nozzle capable of spraying a release agent in a second side direction perpendicular to the movable mold direction; a shielding means including a first shielding plate provided between the fixed nozzle and the movable nozzle and extending in the vertical direction, and a second shielding plate provided at an end of the first shielding plate and extending in a direction different from that of the first shielding plate, The shielding means shields the flow of ejected material from one of the fixed nozzle and the movable nozzle to the other. Release agent application device.

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