JP2006334646A - Spraying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spraying device, which, even when the shape of a die casting is wide and complicatedly uneven, sprays an optimum amount of releasing agent to an optimum position of the casting surface of a metal mold, improves the quality of the die casting, and further has high productivity and high reliability. <P>SOLUTION: The spraying device is provided with a discharge pump mechanism capable of electrically varying and controlling the amount of spraying. A spray nozzle 11, which is connected to the mechanism, is held by a manipulator 14, which performs positional movement control and rotation angle control in three axis directions (X, Y, and Z) including a width direction and three rotation-axis directions (Θx, Θy, and Θz) respectively. The spray nozzle 11 is integrated with a spray head 13 having an actuator structure independently travelling and rotating at least in one direction. Thus, by operating a plurality of preset programs while switching them, a predetermined amount of releasing agent is swiftly and properly sprayed to a predetermined position of and a predetermined direction to a casting surface 6 of a metal mold. Further, the spraying device is simply applicable to various different casting surfaces of metal molds. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a spray apparatus for spraying a release agent for applying a release agent to a mold surface of a die such as a die casting apparatus.

[Conventional technology]
The die casting apparatus comprises a fixed mold supported by a fixed mold platen and a movable mold supported by a movable mold platen. Molten metal is poured into a cavity formed by combining the fixed mold and the movable mold. This is a spray casting process. In order to prevent seizure and galling on the mold, and to smoothly release the cast product and improve product quality, both sprayers are used. Generally, a mold release agent is applied to the mold surface.

  The spray device for spraying the release agent has conventionally been a hydraulic cylinder fixed horizontally on a fixed base of the spray device main body mounted on the top or side of the die casting device, and a movable portion tip of the cylinder. There is an apparatus that can quickly move to the optimum spray position for application in two axial directions of the X-axis and the Z-axis by another hydraulic cylinder mounted so as to be movable in the vertical direction (Patent Document 1). reference). The feature of the technique described in Patent Document 1 is that the optimal spray position is set by moving the Z-axis direction, and the distance between the spray nozzle and the mold surface, that is, the application amount is optimized by moving in the X-axis direction. As a result, it is said that quality improvement can be achieved in application to a die casting surface having an uneven product shape.

  Similarly, a vertical movement mechanism supported by a fixed base of the spray device main body attached to the upper part of the die casting apparatus and a spray head attached to the lower end of the vertical movement mechanism are attached movably in the mold surface direction. Similarly, there is also an apparatus that can quickly move to the optimum spray position for application in the two axial directions of the X axis and the Z axis (see Patent Document 2). The feature of the technique described in Patent Document 2 is that two spray nozzles are configured to be movable in the mold surface direction which is the X-axis direction, one is a fixed mold, and the other is Each piece can be moved to a movable mold, reducing the time required for application, enabling effective application of a release agent even in uneven shapes, preventing product defects and saving the release agent. It is going to be planned.

[Problems with conventional technology]
However, both the above prior arts do not consider the movement optimization in the Y-axis direction, which is the width direction, so if the product is long in the width direction or has an irregular shape, spraying uniformly in the width direction will result in a product shape There is a concern that the application in the width direction becomes uneven, the release agent is partially or excessively insufficient, and the quality of the product is deteriorated due to defects. That is, it is an indispensable condition for quality assurance to optimize the spray position and application amount of the release agent in the Y-axis direction which is the width direction.
Japanese Utility Model Publication No. 5-26157 JP-A-6-312251

Optimization of the spray position and application amount of the release agent is an indispensable condition for ensuring quality, and there are various problems as described below in order to manufacture a die-cast product with high quality.
When the mold release agent is insufficient, the mold temperature rises and seizure or galling occurs. On the other hand, when the application amount is excessive, a hot water wrinkle defect or a hot water boundary defect due to a temperature drop of the mold occurs. Therefore, it is necessary to set a method and processing conditions for applying an appropriate amount of a release agent at an appropriate position on the mold casting surface which becomes more and more complicated with the product shape. Adoption of a mechanism that can electrically control the position of the spray nozzle in the Y, Z3 axial directions becomes an important issue.

  In the die-casting device, the fixed mold and the movable mold are arranged facing each other with a certain distance (space). However, depending on the die-cast product, sufficient space cannot be secured or the spray nozzle is controlled by all three axes. Then, fine adjustment movement is difficult, and it takes time to move. As a result, cycle time becomes long, and there is a risk of product quality deterioration due to lowering of mold temperature, so at least one axis direction is a spray head fixed to the manipulator. However, the adoption of a mechanism that has an actuator structure capable of position setting control by an electric signal and that can perform fine adjustment movement quickly and with high accuracy becomes a problem.

  Furthermore, as a feature of the product shape, in addition to the wide shape, the unevenness is deep, for example, a shape having a large number of side walls in the vertical and horizontal directions, the amount of application at that portion is insufficient with only horizontal uniform spraying. Therefore, a mechanism capable of setting the angle of the spray nozzle capable of spraying in the vertical direction of each side wall is required. In other words, preferably the spray nozzle angle can be variably controlled in the direction of the rotation axis of Θx, Θy, Θz3, and the optimum condition setting can be made electrically accurate when changing the die casting surface of various shapes for die casting products of multiple product numbers. Adoption of a mechanism that can be reproduced easily becomes a problem.

  In addition to setting the proper spray position by a mechanism that can be variably controlled in the above-mentioned three axes (X, Y, Z) or three rotation axes (Θx, Θy, Θz) directions, an appropriate application of a release agent is further performed. It is necessary to control the amount, and there is a problem in adopting a variable discharge amount mechanism for improving product quality by preventing excessive release agents and stopping application to unnecessary portions.

  In order to solve the above-mentioned problems, the present invention can improve the product quality and improve the product quality by applying the mold release agent on the mold casting surface at the optimum position even when the die-cast product shape is complicated. The purpose is to provide a spray device with high reliability and reliability.

[Means of Claim 1]
According to the first aspect of the present invention, in the die casting apparatus comprising a fixed mold fixed to the fixed platen and a movable mold fixed to the movable platen, the mold release agent is sprayed onto the manipulator installed alongside the die casting apparatus. By holding the spray head with the spray nozzle fixed and moving the spray head in the three-dimensional direction by operating the manipulator, the mold is released to the appropriate position on the mold casting surface of the fixed mold and the movable mold. A spray device characterized in that the agent can be sprayed is employed.

  According to this configuration, the spray nozzle held by the spray head can be moved to an appropriate position with respect to the mold casting surface, and spraying of the mold release agent can be repeated. The coating amount can be secured, and defects such as seizure of molds and hot water wrinkles can be prevented.

[Means of claim 2]
2. The spray device according to claim 1, wherein the spray head is moved in two directions by a manipulator holding the spray head, and the spray head is provided with an actuator structure capable of position setting control in the remaining one direction. Thus, a spray device characterized in that the mold release agent can be sprayed onto appropriate positions of the mold casting surfaces of the fixed mold and the movable mold is employed.

  According to this configuration, when the distance between the fixed mold and the movable mold is small, the movement in one direction can be performed by the actuator without controlling all the three axial directions with the manipulator installed outside the mold. The fine adjustment movement of the nozzle is facilitated, the movement time is short, and the cycle time is also shortened to prevent the temperature of the mold from being lowered.

[Means of claim 3]
2. The spray device according to claim 1, wherein the spray head is moved in one direction by a manipulator holding the spray head, and in the remaining two directions, the spray head is provided with an actuator structure capable of position setting control. By doing so, the spray apparatus characterized by enabling the said mold release agent to be sprayed to the appropriate position of the die casting surface of a stationary mold and a movable mold is employ | adopted.

  According to this configuration, similarly to the means of claim 2, since the manipulator installed outside the mold does not control all three axial directions, it has the same effect as the means of claim 2, but the movable mold and the movable mold are movable. Depending on the size of the mold and the narrow interval, the fine adjustment movement time of the spray nozzle is further shortened, and the cycle time is also shortened, and the temperature drop of the mold can be sufficiently prevented.

[Means of claim 4]
4. The spray device according to claim 1, wherein the spray head is provided with an actuator structure capable of controlling the rotation angle setting in the direction of 1 to 3 rotation axes, and is a fixed mold and a movable mold. A spray device is employed, in which the spray nozzle is rapidly rotated and moved to an appropriate position on the uneven side wall of the casting surface to spray the release agent in the vertical direction of the uneven side wall.

  According to this configuration, it is possible to spray the release agent from the vertical direction onto the uneven side wall of the mold casting surface, compared to spraying in the three-dimensional X, Y, and Z3 axial directions only. Insufficiency can be easily prevented, a uniform and appropriate coating amount can be secured over the entire area of the die casting surface, and product quality can be improved.

[Means of claim 5]
5. The spray device according to claim 1, wherein a discharge amount variable control means capable of changing the spray amount of the release agent is provided, and the die casting surfaces of the fixed die and the movable die are provided. The spray device is characterized in that an appropriate amount of the release agent can be sprayed.
According to this configuration, it is possible to interrupt the spraying of the optimum amount of the release agent according to the required position and complex shape, and it is possible to interrupt the discharge of unnecessary portions, so that the application amount can be optimized easily. In addition, it is possible not only to prevent defects such as seizure of molds and hot water wrinkles, but also to eliminate the waste of release agent due to excessive release agent.

[Means of claim 6]
Since it is a die-cast product manufactured by the spray device according to any one of claims 1 to 5, the product quality is high and the price is low.

  The best mode of the present invention will be described together with Example 1 shown in the drawings.

[Configuration of Example 1]
FIG. 1 is a perspective configuration diagram of a main part of a die casting device and a spray device attached to the die casting device according to a first embodiment of the present invention.
The die casting apparatus 1 includes a fixed mold 3 supported by a fixed platen 2 and a movable mold supported by a movable platen 4 that is guided by a guide rod (not shown) and is slidable in the guide rod axial direction (X direction in the drawing). The fixed mold 3 and the movable mold 5 which are made up of the mold 5 and are paired are provided with a mold casting surface 6 for obtaining a desired product shape.

  The spray device 10 includes a manipulator fixing base 15 installed on the top or side of the fixed platen 2 and a manipulator 14 fixed to the manipulator fixing base 15. The manipulator 14 moves in the X direction in the figure. X manipulator 14X that can move, Z manipulator 14Z that can move in the Z direction, and Y manipulator 14Y that can move in the Y direction. It can move freely in the three-dimensional X, Y, and Z directions independently. Further, a spray head 13 is held at the tip of the Y manipulator 14Y, and spray nozzles 11 are arranged in a pair in the X-axis direction on the spray head 13 and are flexible to pressure-feed a release agent (not shown). The release agent can be sprayed in communication with one end of the pipe.

  The structure of the manipulator 14 is generally an arm three-dimensional moving mechanism using an electric servo motor, but may be a three-dimensional arm moving mechanism using a hydraulic cylinder. Since the manipulator 14 of the next stage is held at the tip of each manipulator 14, the housing of the manipulator 14 is required to have a shape with high strength and rigidity, and the first stage tends to be relatively large. A desired voltage or hydraulic pressure is applied via a wiring or pipe (not shown) in accordance with a controller command from a power source or hydraulic source (not shown), and the manipulator 14 can move three-dimensionally.

  The spray nozzle 11 is a cylindrical member having an injection hole of a predetermined size at the center thereof, and is fixed by screwing or press-fitting it into a predetermined position of the spray head 13. The mold release agent can be sprayed in the direction perpendicular to the mold casting surface 6. Further, the spray is formed so as to form a spread at the tip of the spray axis and to ensure uniform application.

  FIG. 2 shows various aspects of the mold casting surface 6. FIG. 2 (a) shows a horizontally long mold casting surface, FIG. 2 (b) shows a multi-piece mold casting surface. c) shows a complicated mold casting surface that is deeply concave and convex and is composed of a large number of side walls on the upper, lower, left, and right sides.

  In the horizontally long mold casting surface 6 in FIG. 4A, even if the spray nozzle 11 is sprayed with being positioned substantially at the center of the horizontally long mold casting surface 6, the amount of coating is insufficient in the horizontally long portion, and the horizontally long portion. If spraying is performed so as to ensure a sufficient coating amount, the coating amount is excessive in the central portion, and the problem remains. Therefore, the spray device 10 needs to have a configuration in which the spray nozzle 11 is sequentially sprayed while being moved in the horizontally long direction.

  In addition, in the multi-piece mold casting surface 7 in FIG. 5B, depending on the arrangement, the mold casting surface 7 may be horizontally long or vertically long. The point is shown, and this spray point spreads vertically and horizontally according to the number of multiple pieces. There is still a need for a configuration in which spray points are set adjacent to each other to the extent that non-uniformity in the amount of application at each spray point does not occur and sprayed sequentially. A rapid movement in two directions is required for the area larger than the horizontally long die casting surface 6 in FIG.

  Further, even if the complicated mold casting surface 8 in FIG. 3C can be moved quickly in the laterally long direction or two directions as described above, the vertical direction of the mold (the X direction in the figure) alone is sufficient. Therefore, it is almost impossible to apply a release agent to a large number of upper and lower side walls. In order to ensure an appropriate application amount on the side wall, it is necessary to rotate the spray nozzle 11 that can spray in the vertical direction of the side wall. In addition, when there are a large number of concave and convex side walls extending in three dimensions, ie, up and down, left and right, and front and rear, it is necessary to further rotate all three rotating shafts and quickly rotate each.

  FIG. 3 is a perspective configuration diagram of the spray device according to the first embodiment of the present invention. The spray device 10 includes a manipulator fixing base 15 and a manipulator 14 fixed to the manipulator fixing base 15. The manipulator 14 includes an X manipulator 14X movable in the X direction in the drawing and a Z manipulator movable in the Z direction. 14Z and a Y manipulator 14Y movable in the Y direction, and can be freely moved independently in the three-dimensional X, Y, and Z directions by a command from a controller (not shown). A spray head 13 is held by the Y manipulator 14Y, and spray nozzles 11 are arranged in a pair in the X-axis direction on the spray head 13, and communicate with a flexible pipe that pumps a release agent (not shown). Thus, the release agent can be sprayed.

  In addition, the other end of the flexible pipe is connected to a discharge pump mechanism (not shown), and the discharge pump mechanism simultaneously controls the discharge amount according to a command from the controller, for example, changes the pump flow rate by changing the energization voltage as an electrical control, In addition, the throttle opening of the valve can be varied to change the pump pressure, and the spraying can be stopped.

However, the spray head 13 held by the Y manipulator 14Y has a self-propelled actuator function, and moves quickly and with high accuracy by guiding the arm spindle 12 of the Y manipulator 14Y through the center thereof by an electrical signal. It has a structure that can be stopped. As a result, it is possible to instantaneously perform fine movement and fine adjustment movement from one end of the die casting surface in the Y-axis direction to the other end (Y1-Y2 arrow in the drawing).
Depending on the size of the spray head 13, various mechanisms are selected as the actuator structure. For example, as a compact actuator, a linear motor or an actuator using a combination of a small cylindrical motor and a reduction gear is used.

  In the first embodiment, the spray head 13 is self-propelled with the arm spindle 12 of the Y manipulator 14Y as a guide. However, the present invention is not limited to this, and a guide structure separate from the arm spindle 12 of the Y manipulator 14Y is used. The arm spindle 12 may be an actuator structure that slides on the surface of the arm spindle 12 instead of the actuator structure in which the arm spindle 12 moves through the center of the spray head 13. Further, the actuator is not limited to a self-propelled actuator that guides the arm spindle 12, but may have an actuator structure in which the arm spindle 12 has an actuator function and the spray head 13 moves in the Y direction in response to the actuator function. Absent.

  In the first embodiment, the spray head 13 is moved by providing an actuator structure capable of position setting control in the remaining one direction. However, the spray head 13 is not limited to this and is moved by providing an actuator structure capable of position setting control in the remaining two directions. As long as the self-propelled structure is adopted, the space has a great merit.

[Effect of Example 1]
In the spray device 10 according to the first embodiment, the spray head 13 to which the spray nozzle 11 for spraying the release agent is fixed is configured to be movable independently in the three axial directions of X, Y, and Z. It is possible to quickly move the spray nozzle 11 to the optimum position with respect to the large-shaped and irregularly shaped die casting surface 6, and an appropriate coating amount is ensured by spraying the release agent. it can.

  Further, since the spray head 13 is a self-propelled actuator and the arm spindle 12 in the Y-axis direction can be moved to the guide, the fineness of the spray nozzle 11 can be reduced even at a narrow interval between the fixed mold 3 and the movable mold 5. Adjustment movement becomes easy, movement time is short, cycle time is also shortened, and temperature drop of the mold can be prevented.

  Furthermore, since the discharge amount is variably controlled by the release agent discharge pump or valve, the optimal amount of the release agent can be sprayed at the optimal position, and unnecessary parts can be sprayed by interrupting the discharge. You can eliminate waste.

[Configuration of Example 2]
FIG. 4: is a perspective block diagram which shows the rotating shaft movement of the spray nozzle of a spray apparatus about Example 2 of this invention.
In the case of Example 2, the mold casting surface 8 is a horizontally long mold, the projections and depressions are deep, and the mold casting surface 8 is a complex mold casting surface 8 composed of a large number of concave and convex side walls. The spray nozzle 11 can be rotated so that it can be sprayed in the vertical direction of the side wall of the concave and convex sides in order to apply uniformly, and the other configuration is exactly the same as in the first embodiment, and there is no difference. .

  The mold casting surface 8 in the illustrated example has side walls 8H that are deeply uneven and greatly inclined up and down, and it is impossible to apply the release agent to the side walls 8H at the position of the spray nozzle 11 illustrated. Yes, even if the spray nozzle 11 is moved in the Z direction by the Z manipulator 14Z and sprayed close to the side wall 8H, it is not sufficient. That is, as long as the spray axis of the spray nozzle 11 is in the X-axis direction perpendicular to the mold surface, it is difficult to properly spray onto the side wall that is greatly inclined with respect to the X-axis direction, and at least the spray nozzle 11 faces the side wall 8H. It is necessary that the spray head 13 holding the spray nozzle 11 can be axially rotated so that the spray surface is sprayed with a small inclination angle or preferably sprayed substantially vertically.

  The illustrated spray head 13 is provided with a self-rotating actuator structure that can rotate clockwise or counterclockwise with the arm spindle 12 as a central axis. As a result, in response to a command from the controller, the Z manipulator 14Z moves closer to the side wall 8H, and the spray head 13 rotates by a predetermined angle Θy or −Θy, and the release agent is removed at a position substantially perpendicular to the side wall 8H. Spray from the spray nozzle 11.

  FIG. 4 shows the movement of the spray head 13 when the upper and lower side walls 8H are present. When spraying to the lower side wall 8H, the Z manipulator 14Z moves downward (in the Z1 direction in the drawing) and moves to the arm spindle 12. The spray head 13 to be held continues to rotate counterclockwise to a position substantially perpendicular to the side wall 8H and then stops and sprays the release agent. At this time, since the spray at this position is substantially perpendicular to the side wall 8H, uniform application can be obtained in the vicinity of the spray point of the side wall 8H, and when the side wall 8H continues in the Y direction, the spray head 13 moves to the arm spindle 12. Is moved by a predetermined distance in the Y direction, the next spray point can be set, and at that position, the release agent is sprayed. And this operation | movement is performed according to the instruction | indication of a controller until the termination | terminus of the side wall 8H of the metal mold | die casting surface 8, and a uniform mold release agent can be apply | coated to the side wall 8H.

  Subsequently, when spraying on the upper side wall 8H, the Z manipulator 14Z is similarly moved upward (in the Z2 direction in the drawing), and the spray head 13 held by the arm spindle 12 is moved to a position substantially perpendicular to the side wall 8H. Now continue to rotate clockwise and stop and spray release agent. At this time, since the spray at this position is substantially perpendicular to the side wall 8H, uniform application is obtained in the vicinity of the spray point of the side wall 8H, and when the side wall 8H continues further in the Y direction, The same movement as in the case is executed according to the command of the controller, and appropriate application of the release agent becomes possible.

  The actuator structure includes a combination structure of a linear motor or a small cylindrical motor described in the first embodiment and a reduction gear, and also serves as a structure for self-propelled movement in the Y direction described in the first embodiment. preferable. In addition, the operation of the spray head 13 according to the second embodiment has a reproducible configuration in which movement, stop, and spraying are repeated accurately and quickly to the end of the mold. It can be sprayed by a command from the controller, and it can be used in any way.

[Effect of Example 2]
In the spray device 10 according to the second embodiment, the spray head 13 to which the spray nozzle 11 for spraying the release agent is fixed is configured to be movable independently in the three axis directions of X, Y, and Z, and around the Y axis. Since the actuator structure capable of rotating the shaft is provided, not only the mold casting surface 6 having a large dimension in the Y direction but also the irregularly shaped mold casting surface 8 having upper and lower side walls are formed. In addition, the spray nozzle 11 can be quickly moved to the optimum position and orientation, and an appropriate amount of release agent can be secured.

  Furthermore, the spray head 13 is a self-running / rotating actuator that can move on the arm spindle 12 in the Y-axis direction, and the spray direction of the release agent is complicated at each spray point. Since the shaft can be quickly rotated in the direction perpendicular to 8, the fine adjustment of the spray nozzle 11 is facilitated even at a narrow interval between the fixed mold 3 and the movable mold 5, and the movement time is short and the cycle time is also short. It becomes short and can prevent the temperature drop of the mold.

[Configuration of Example 3]
FIG. 5: is a perspective block diagram which shows the 3 rotation axis movement of the spray nozzle of a spray apparatus about Example 3 of this invention.
Example 3 is similar to Example 2, in the case of a complex mold casting surface 8 in which the mold casting surface is horizontally long and the projections and depressions are deep, and is composed of a large number of sidewalls on the top, bottom, left and right, front and back. In order to uniformly apply the release agent to the mold casting surface 8, the spray nozzle 11 is rotated and moved in the directions of the three rotation axes (Θx, Θy, Θz) so that the spray nozzles 11 can be sprayed in the direction perpendicular to the uneven side walls The other configuration is exactly the same as that of the second embodiment, and there is no difference.

  FIG. 5 is a perspective view of a complicated mold casting surface 8 in a cross section at a substantially center of a horizontally long mold casting surface. In addition to the upper and lower side walls 8H described in the second embodiment, A complicated mold casting surface 8 in which front and rear side walls 8X and inclined side walls 8S are configured at the same time is illustrated. Application of the release agent to these complicated mold casting surfaces 8 is impossible at the position of the spray nozzle 11 shown in the drawing as described in the second embodiment, and even if the spray nozzle 11 is moved in the Z direction by the Z manipulator 14Z. Even if it is moved to the position and sprayed close to the complicated side walls 8S and 8H, it is not sufficient. In other words, as described in the second embodiment, the structure of the spray head 13 that rotates the spray axis of the spray nozzle 11 so as to be close to each complicated side wall and spray in a substantially vertical direction is necessary.

  The illustrated spray head 13 is based on a Y spray head 13Y having an actuator structure that can rotate clockwise or counterclockwise with the arm spindle 12 as a central axis (Y axis). An X spray head 13X and a Z spray head 13Z that are provided with an actuator function capable of rotating about the X axis and the Z axis orthogonal to each other as a rotation axis are held.

  As a result, the spray head 13 continues the axial rotation of the X spray head 13X clockwise or counterclockwise by a predetermined angle Θx at the position shown in response to a command from the controller, and at an angular position that is perpendicular to the side wall 8S. Stop and spray the release agent from the spray nozzle 11X. Similarly, the Z spray head 13Z continues to rotate clockwise or counterclockwise by a predetermined angle Θz, stops at an angular position perpendicular to the side wall 8V, and sprays the release agent from the spray nozzle 11Z. At this time, since the spray at this position is substantially perpendicular to the side walls 8S and 8V, uniform application can be obtained in the vicinity of the spray points of the side walls 8S and 8V.

  When the side wall continues further in the X direction or the Z direction, the spray head 13 can set a next spray point by moving a predetermined distance in the X manipulator 14X and Z manipulator 14Z directions, and the release agent can be set. It becomes possible to spray. This operation is repeatedly executed according to the program until the end of each side wall of the mold casting surface 8, and a uniform mold release agent can be applied to the complicated side wall.

  The actuator structure includes a combination structure of a linear motor or a small cylindrical motor described in the first embodiment and a reduction gear, and also serves as a structure for self-propelled movement in the Y direction described in the first embodiment. preferable.

  In the above example, an example of sequential sequential program control is described independently for each of X, Y, and Z. However, the present invention is not limited to this, and program control in which X and Z operate simultaneously in parallel may be used. It may be a program control that operates the X, Y, and Z3 axes simultaneously and collectively. In addition, the operation of the spray head 13 according to the third embodiment has a reproducible configuration that repeats movement, stop, and spray accurately and quickly to the end of the mold. However, the present invention is not limited to this, while moving without stopping. It is possible to spray, and it is possible to adopt it in any way.

[Effect of Example 3]
The spray device 10 according to the third embodiment has a configuration in which a spray head 13 to which a spray nozzle 11 for spraying a release agent is fixed can be moved independently in three axial directions of X, Y, and Z, and X, Y, Adopting an actuator structure that can be rotated around the Z axis (Θx, Θy, Θz), so that it has a large dimension in the Y direction and has a deformed mold casting surface 6 as well as up and down, left and right, and back and forth. It is possible to quickly move the spray nozzle 11 to the optimal position and orientation even with respect to the complicated mold casting surface 8 having the uneven side wall, and the mold release agent is applied to the entire area of the complicated mold casting surface 8. An appropriate coating amount can be secured.

  In addition, since the spray nozzles 11 held by the spray head 13 are compact self-propelled / rotating actuators that can rotate independently of each other, the distance between the fixed mold 3 and the movable mold 5 can be reduced. It is possible to quickly and finely adjust and move to the appropriate position of the complicated mold casting surface in all directions without spreading it unnecessarily, and it is possible to achieve the spray of the release agent easily and quickly. Become. In addition, since the temperature drop of the mold can be prevented, the product quality can be improved, the cycle time can be remarkably shortened, and the productivity is greatly improved.

  In addition, by setting a plurality of optimum conditions in the controller in advance so that it can move independently in the direction of the 3-axis and 3-rotation axes, the condition settings at the time of product part number switching can be reproduced easily and quickly. Reliability can be improved.

[Other Examples]
The spray device of the present invention can be applied to all devices that use a spray device such as a coating device or a resin shaping device, in addition to being provided with a die casting device.

(Example 1) which is a perspective block diagram of the principal part of the spray apparatus provided with the die-casting apparatus. (A) is a perspective view of a horizontally long mold casting surface, (b) is a front view of a multi-piece mold casting surface, and (c) is a perspective view of a complicated mold casting surface. There is (Example 1). (Example 1) which is a perspective block diagram of the principal part of a spray apparatus. (Example 2) which is a perspective block diagram of the principal part of a spray apparatus. (Example 3) which is a perspective block diagram of the principal part of a spray apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Die casting apparatus 2 Fixed board 3 Fixed mold 4 Movable board 5 Movable mold 6, 7, 8 Mold casting surface 10 Spray apparatus 11 Spray nozzle 12 Arm spindle 13 Spray head 14 Manipulator 15 Manipulator fixed base

Claims (6)

In a die casting apparatus consisting of a fixed mold fixed to a fixed plate and a movable mold fixed to a movable plate,
To the manipulator installed alongside the die casting device,
Hold the spray head with a fixed spray nozzle to spray the release agent,
By moving the spray head in a three-dimensional direction by operating the manipulator,
A spray apparatus characterized in that the mold release agent can be sprayed onto appropriate positions of the mold casting surfaces of the fixed mold and the movable mold. The spray device according to claim 1.
By the manipulator holding the spray head, the spray head is moved in two directions,
In the remaining one direction, the spray head moves by providing an actuator structure capable of position setting control,
A spray apparatus characterized in that the mold release agent can be sprayed onto appropriate positions of the mold casting surfaces of the fixed mold and the movable mold. The spray device according to claim 1.
The manipulator holding the spray head moves the spray head in one direction,
In the two remaining directions at the same time, the spray head moves by providing an actuator structure capable of position setting control,
A spray apparatus characterized in that the mold release agent can be sprayed onto appropriate positions of the mold casting surfaces of the fixed mold and the movable mold. The spray device according to any one of claims 1 to 3,
The spray head is provided with an actuator structure capable of controlling rotation angle setting in the direction of 1 to 3 rotation axes,
The spray nozzle is rapidly rotated and moved to an appropriate position on the uneven side wall of the mold casting surface of the fixed mold and the movable mold,
A spray apparatus characterized in that the release agent can be sprayed in a direction perpendicular to the uneven side wall. The spray device according to any one of claims 1 to 4,
Discharge amount variable control means capable of changing the spray amount of the release agent is provided, and an appropriate amount of the release agent is sprayed onto the mold casting surfaces of the fixed mold and the movable mold. A spray device characterized in that   A die-cast product manufactured by the spray device according to any one of claims 1 to 5.

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