JP4237688B2 - Die casting machine spray equipment - Google Patents

Description

  The present invention relates to a spray device of a die casting machine that injects a mold release agent or blows air onto a cavity surface in die casting or the like, and more particularly, a die casting capable of shortening the operation time of a spray nozzle and improving the efficiency of a molding cycle. It relates to a spray device of a machine.

  Conventionally, in the case of die casting, a spray device for spraying a mold release agent or blowing air to a mold cavity is known in order to prevent seizure of the mold or poor flow of the cast product after molding. . As a spray device for such a die casting machine, Patent Document 1 discloses that a mold to be sprayed includes a movable mold and a fixed mold, and the spray apparatus is separated from cavities formed in these molds. Spray the mold. This spray nozzle is attached to the lower end portion of the arm, and is configured so that the arm faces the target cavity by the robot and moves, for example, in the vertical and horizontal directions to inject the release agent into the cavity.

JP 2001-162213 A

  By the way, this type of spray device waits outside the die when the die of the die casting machine is closed, moves toward the inside of the cavity and sprays when the die is opened, and then retreats to the outside of the die again. However, as the moving process, first, the spray device is lowered from the standby position to the lower limit position, and then the spray nozzle is advanced horizontally to stop at a position with a slight gap from the cavity toward the inside of the cavity. Spray. After this spraying, the spraying device moves up to the standby position of the spraying device following the movement trajectory in the opposite direction. That is, the movement trajectory until it moves toward the inside of the cavity and injects is the same as the movement trajectory that returns from the injection position to the standby position again. However, in order to reliably and accurately inject the release agent toward the cavity from the standby position to the injection position, the movement of the nozzle must be accurate, but the movement from the injection position to the standby position is rather The faster the movement, the shorter the operation time of the spray device, and the higher the production efficiency of the die casting machine.

  The present invention solves the above-mentioned problem, and between the standby position and the injection position, the spray device is moved reliably and accurately toward the cavity, and after injection, the spray device is quickly moved to the standby position. An object of the present invention is to provide a spray device for a die casting machine capable of this.

A spray apparatus for a die casting machine according to claim 1 is a mold apparatus having a fixed mold and a movable mold and having a concave cavity on the inner surface, and a spray nozzle for injecting a release agent or the like into the cavity. , and a movement driving means for moving the spray nozzle so as to face the mold, as a process of moving the mobile drive unit, contact parting line surfaces and spacing of the mold from a standby position of the spray nozzle a lowering step of lowering to the lower end position facing the cavity have, proximate a narrow distance (L2) amount corresponding spray nozzles than the distance at the parting line Menma of the mold from a spray nozzle of the lower end position in the cavity a horizontal forward step of pre proceeds to the said spray nozzle horizontal distance (L1) corresponding to the depth of the cavity cavity A drive-moving step of advancing towards the I, after injection, such as the release agent by the spray nozzle, a retraction step of horizontally moving the horizontal distance component (L1) only reverse the thrust moving step, the horizontal forward movement of a tilting movement step of retracting the spray nozzle to draw a movement trajectory that is inclined to the retracted position outside of the cavity by rising while retracting the horizontal distance corresponding to the moving distance component (L2), said from the retracted position It is characterized by comprising an ascending movement step for raising to a standby position.

According to the configuration of the first aspect, the forward movement process of the spray nozzle from the standby position from the die opening of the die casting machine to the spray operation of the spray nozzle to the injection position, and the backward movement process of returning from the injection position to the standby position Unlike the above, in the moving process on the return path side, after the spray nozzle is horizontally moved in the reverse direction by the same distance as the moving distance in the driving movement process corresponding to the depth of the cavity, it is returned by the moving distance in the horizontal advance process. The spray nozzle moves up to the retracted position outside the cavity while drawing an inclined movement locus, and then rises and returns to the standby position.

The spray device for a die-casting machine according to claim 2 is the spray device for a die-casting machine according to claim 1, wherein the spray device for the die-casting machine includes a display device for setting the spray device, and at least a cavity for the driving movement process. And a means for inputting and setting a distance corresponding to the depth.

  According to the configuration of the second aspect, the operator inputs various conditions for controlling the spray device by the key input means to control the operation of the spray device. By inputting the depth of the cavity in advance, the spray nozzle The optimum injection position and the shortest movement trajectory returning to the standby position are set.

The spray device for a die casting machine according to claim 3 is the spray device for a die casting machine according to claim 1, wherein the movement driving means is a base plate fixed on the frame of the die casting machine, and a support provided on the base plate. a member, a mounting member which is slide freely guided in the support member, the parallel link mechanism comprising a pair of link arms provided with said spray nozzle tip with pivotally proximal side to the mounting member, wherein The present invention is characterized in that it comprises elevating drive means for rotating one link arm to move the spray nozzle up and down, and reciprocating drive means for horizontally reciprocating the support member.

According to the structure of claim 3, the spray device moves up and down in conjunction with the link arm rotated by the lifting drive means, and moves in the horizontal direction in conjunction with the support member reciprocated by the reciprocating drive means. By controlling the reciprocating drive means, the spray device is moved from the standby position to the injection position, and after injection, the spray nozzle is leveled in the opposite direction by the same distance as the movement distance of the follow-up movement process corresponding to the depth of the cavity. After moving, the spray nozzle moves up to the retracted position outside the cavity by drawing back and moving up so as to return by the moving distance of the horizontal forward process, and then rises to the standby position Return to.

  A spray apparatus for a die casting machine according to claim 4 is the spray apparatus for a die casting machine according to claim 3, wherein the elevating drive means is composed of an elevating electric motor capable of rotating forward and reverse, and the reciprocating drive means is located on the base plate side. The slide nozzle is horizontally moved by rotating a nut member screwed with a screw shaft connected to the attachment member by the slide electric motor fixed to the slide member and sliding the attachment member. It is characterized by being configured to slide.

  According to the configuration of claim 4, the spray device moves the spray device from the standby position to the injection position by controlling the rotation of the lift drive motor and the slide drive motor, retreats horizontally after injection, and then tilts. It moves to a retracted position outside the cavity while drawing a movement trajectory, and further moves up to return to the standby position.

According to the spray apparatus of the die-casting machine according to claim 1, a mold apparatus having a fixed mold and a movable mold and having a concave cavity on the inner surface, and a spray for injecting a mold release agent or the like into the cavity a nozzle, the spray nozzle and a movement driving means for moving so as to face the mold, as a process of moving the mobile drive unit, the parting line surface and spacing of the mold from a standby position of the spray nozzle a lowering step of lowering to the lower end position facing the cavity at a narrow distance (L2) amount corresponding spray nozzles than the distance at the parting line Menma of the mold from a spray nozzle of the lower end position in the cavity a horizontal forward step of pre proceeds to close, the spray nozzle horizontal distance (L1) corresponding to the depth of the cavity the A drive-moving step of advancing towards the Yabiti, after injection, such as the release agent by the spray nozzle, a retraction step of horizontally moving the horizontal distance component (L1) only reverse the thrust moving step, the horizontal forward movement of a tilting movement step of retracting the spray nozzle to draw a movement trajectory that is inclined to the retracted position outside of the cavity by rising while retracting the horizontal distance corresponding to the moving distance component (L2), said from the retracted position Since it is equipped with an ascending movement process that raises it to the standby position, the spray nozzle rises in an inclined manner after spraying and can move to the outside of the cavity at the shortest distance, shortening the operation time of the spray device As a result, the molding cycle can be made more efficient.

According to the spray device of the die-casting machine according to claim 2, the spray device of the die-casting machine according to claim 1, wherein the spray device of the die-casting machine includes a display device for setting the spray device, and at least the driving movement step. Because it is equipped with a means to input and set the distance corresponding to the depth of the cavity, simply entering the cavity depth in advance makes it easy to set the optimal spray nozzle injection position and the shortest movement trajectory to return to the standby position. It becomes possible to set to.

According to the spray device of the die-casting machine according to claim 3, in the spray device of the die-casting machine according to claim 1, the base plate fixed on the frame of the die-casting machine, the support member provided on the base plate, a mounting member which is slide freely guided in the support member, the parallel link mechanism comprising a pair of link arms provided with said spray nozzle tip with pivotally proximal side to the mounting member, said one link arm And a reciprocating drive means for reciprocating the support member horizontally, so that the spray nozzle that moves up and down by the rotation of the link arm is a link arm. The lower end position is away from the mold that formed the cavity, because A, because there is also the depth of the cavity itself, a spray nozzle is advanced once from the lower end position by a predetermined distance, further, since Komu have distance but only add substantially corresponding to the depth of the cavity, the cavity and the spray nozzle is close It can be sprayed in a state where it has been moved accurately and reliably to the position, and after spraying, it will move horizontally in the opposite direction by a distance approximately corresponding to the depth of the cavity, and then return by the moving distance of the horizontal advance process. By moving upward while retreating, the spray device can be quickly moved to the standby position after the injection without interfering with the cavity and the spray nozzle, thereby shortening the operation time.

  According to a spray apparatus for a die-casting machine according to claim 4, in the spray apparatus for a die-casting machine according to claim 3, the elevating drive means is constituted by an elevating electric motor capable of rotating forward and reverse, and the reciprocating drive means is the base. The spray nozzle is configured by sliding the mounting member by rotating a nut member screwed with a screw shaft connected to the mounting member by the sliding electric motor fixed to the plate side. Since it is configured to slide in the horizontal direction, the spray drive can be quickly moved to the standby position after spraying by controlling the rotation of the lift drive motor and slide drive motor to shorten the operation time. it can.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to FIGS. Needless to say, the present invention can be easily applied to configurations other than those described in the embodiments without departing from the spirit of the invention.

FIG. 1 is a rear view of the die casting man 11 viewed from the counter-operation side showing a part of the spray device 10 and the die casting man 11 according to the present embodiment, and the outline thereof will be described. A movable die plate 42 is reciprocally disposed on a plurality of tie bars 41 laid between a fixed die plate 40 and a support plate (not shown). A fixed mold 11A and a movable mold 11B constituting the mold apparatus 1 are mounted on the mounting surface so that the mold can be opened and clamped. Although not shown, a mold clamping cylinder is connected to the movable die plate 42. The movable die plate 42 is moved by this mold clamping cylinder and brought into contact with the fixed mold 11A and the movable mold 11B, thereby fixing the fixed mold. The cavity 12 is defined by the concave portion 13A of 11A and the movable mold 11B . And it is comprised so that a molten metal may be inject | poured and filled to the cavity 12 defined by 11 A of fixed molds and the movable mold 11B which were clamped.

  The spray device 10 blows air to the cavity 12 formed in the fixed mold 11A and injects a release agent. The spray device 10 is assembled on a frame 14 of a die casting machine 11, and a base plate 15 is fixed on the frame 14, and a guide rail 16 is fixed to the base plate 15 as a support member. . A casing 17A of a speed reducer 17 as an attachment member is slidably assembled along the guide rail 16. An elevating drive motor 18 as elevating drive means for moving the spray nozzle 10A up and down is fixed to the casing 17A, and a slide drive motor 19 is fixed as a reciprocating drive means for moving the spray nozzle 10A in the horizontal direction on the base plate 15. Has been.

Reference numeral 20 denotes a parallel link mechanism to which the spray device 10 is attached, and is composed of an upper arm 21 and a lower arm 22 which are link arms. The base end of the upper arm 21 is pivotally attached to the casing 17A, and the base end of the lower arm 22 is fixed to the output shaft 17B of the speed reducer 17, and the speed reducer 17 and the lift drive motor 18 serving as the lift drive means are provided. They are connected via a timing belt 30. A mounting arm 23 that fixes the spray nozzle 10A is pivotally attached to the tips of the upper arm 21 and the lower arm 22, and the spray nozzle 10A is moved up and down while maintaining a vertical posture by the parallel link mechanism 20 by the rotation of the lifting drive motor 18. To do. In addition, since the parallel link mechanism 20 raises and lowers the spray nozzle 10A by rotation, the spray nozzle 10A moves up and down while maintaining a vertical posture, but is indicated by a solid line in FIG. 1 from a standby position indicated by a one-dot chain line in FIG. The up / down trajectory moves up and down to the lower limit position while drawing an arc trajectory. On the other hand, the rotation of the slide drive motor 19 is transmitted to the nut member 25 via the belt 25A, and the screw shaft 26 connected to the nut member 25 and the casing 17A is screwed to the nut member 25. Then, by rotating the nut member 25, the screw shaft 26 screwed to the nut member 25 is reciprocated, and the casing 17A connected to the screw shaft 26 is slid horizontally along the guide rail 16. These guide rails 16, elevating drive motor 18, slide drive motor 19, parallel link mechanism 20, nut member 25, screw shaft 26, etc. are the main components of the moving drive means of the spray device 10. A coil spring 27 is connected between the parallel link mechanism 20 and the mounting plate 28 fixed to the casing 17A.

  Next, operation control of the spray device 10 will be mainly described. The microcomputer 50 that controls the spray device 10 is supplied with signals from sensors 51 such as potentiometers and encoders that detect the rotational speed or position information of the lift drive motor 18 and slide drive motor 19, and signals from these sensors 51. Based on the above, the drivers 52 and 53 for driving the lift drive motor 18 and the slide drive motor 19 are controlled. Further, the die casting machine 11 is provided with a key input means 54 disposed on the front surface of the die casting machine 11 and a display device 55 composed of, for example, a color CRT display, a color LCD or the like adjacent to the key input means 54. Yes. The microcomputer 50 controls the operation of the entire die casting machine 11. Various processes such as control of the entire casting process, calculation / storage processing of actual measurement data, display control processing of the output image of the display device 55, and the like. Execute. The microcomputer 50 is actually composed of various I / O interfaces, ROM, RAM, CPU, etc., and executes various processes by various programs created in advance. A series of operations such as mold clamping, hot water supply ladle control, mold opening, and the like are controlled in accordance with an operation process (casting operation process) based on various operating condition values that are input. explain.

  The display device 55 creates display image data of a designated display mode based on a display image creation / control program created in advance in response to an instruction for calling a display image in a mode desired by the operator through the key input means 54. That is, when a call instruction for a predetermined display image arrives by an operator, data for use in displaying the display mode image is extracted from information stored in the storage unit as necessary and converted into a form corresponding to the display form. The image data for the designated display mode is created by processing, and is displayed on the display screen of the display device 55.

FIG. 3 is a diagram showing an operating condition setting mode screen of the spray device 10 that is called on the display device 55 by an appropriate key operation or the like by the operator. (Although the display device 55 is arranged on the operation side, FIG. 1 is a rear view of the die casting machine viewed from the non-operation side, and the arrangement and display device of the fixed mold 11A and the movable mold 11B in FIG. The display contents of the fixed side and the movable side displayed in 55 are reversed in the left and right directions.) In the operating condition setting mode screen of the spray device 10, the selection setting item field 60 for the spray operation, the advance timer setting item field 61, and the stop A timer setting item column 62, a position setting item column 63, a measured value column 64, a cavity condition setting item column 65, and the like are provided. The spray operation selection setting item column 60 is used to set whether the spray device 10 is moved in the direction of the fixed mold 11A or the movable mold 11B, and is movable when moving to the movable mold 11B side. When the side is selected and moved to the fixed mold 11A side, the fixed side is selected. (When the fixed side is selected, the movable side “×” and the fixed side “O” are displayed in the selection setting item column 60. In this embodiment, the cavity 12 is formed in the fixed mold 11A. Therefore, when the cavity 12 is formed on the movable mold 11B side, the movable side is selected, and these setting items are key input means by the operator. By inputting a numerical value at 54, the advance timer setting item column 61 selects the time from the start of advance from the lower end position b of the spray nozzle 10A to the spray injection in FIG. In the positioning item column 63, a distance L (see FIG. 4) from the lower end position b of the spray nozzle 10A to the spraying position c of the spray is selected and measured. In the value column 64, the horizontal position of the actual spray nozzle 10A is displayed during operation of the spray device, and the depth of the cavity 12 is input in the setting item column 65 of the cavity condition. The same applies when the movable side is selected in the spray operation selection setting item column 60, that is, when the spray device 10 is moved to the movable mold 11B side.

In this way, the operator inputs various conditions for controlling the spray device 10 by the key input means 54 to control the operation of the spray device 10. The depth of the cavity 12 is previously set in the cavity condition setting item column 65. Is input, it is possible to set the optimum spray position of the spray nozzle 10A and the shortest movement trajectory to return to the standby position a. That is, by controlling the spray device 10 in the microcomputer 50, and lifting while keeping the vertical state by the parallel link mechanism 20 by the rotation of the elevation drive motor 18, the nut member 25 is rotating by the slide driving motor 19, a nut By moving the screw shaft 26 to the left side of the figure in FIG. 1 by screwing the member 25 and the screw shaft 26, the casing 17A connected to the screw shaft 26 is slid horizontally along the guide rail 16, When the fixed mold 11A and the movable mold 11B are opened, after moving and spraying from the standby position outside the molds 11A and 11B to the position facing the cavity 12, the fixed mold 11A and the movable mold 11B again. The fixed mold 11A and the movable mold 11B are clamped and the molding operation is started. The microcomputer 50, so the cycle time is shortened, moving step is controlled.

The moving process of the spray device 10 will be described with reference to an explanatory diagram showing the moving process of FIG. 4 and a flowchart of FIG. After the molding, with the fixed mold 11A and the movable mold 11B open, the spray drive motor 18 is rotated in steps S1 and S2, and the spray nozzle 10A is held in the vertical posture by the parallel link mechanism 20. The trajectory is lowered to lower the spray nozzle 10A from the standby position a (shown by a one-dot chain line in FIG. 1) to the lower end position b (lowering step W). Air blow is performed at the lower end position b (shown by a solid line in FIG. 1) (step S3). Thereafter, the spray nozzle 10A is moved forward (step S4) to inject the release agent toward the cavity 12, and the moving distance L is a distance L1 corresponding to the depth of the cavity 12 and the spray at the lower end position b. The distance is a sum of a distance L2 narrower than the distance between the nozzle 10A and the fixed mold 11A. That is, the spray nozzle 10A is lifted and lowered while drawing an arc locus by the parallel link mechanism 20. Therefore, at the lower end position b, the spray nozzle 10A is separated from the parting line surface of the fixed mold 11A in which the cavity 12 is formed. Further, since the cavity 12 itself has a depth, in order to accurately inject the release agent into the cavity 12, in step 4, from the spray nozzle 10A at the lower end position b to the parting line surface of the fixed mold 11A. After the spray nozzle 10A is horizontally moved by a distance L2 narrower than the interval between them (horizontal advance step W1), the spray nozzle 10A is horizontally moved by a horizontal distance L1 corresponding to the depth of the cavity 12 (follow-up move step W2). . This rotates the slide drive motor 19 and pulls the screw shaft 26 connected to the casing 17 </ b> A, thereby sliding the casing 17 </ b> A including the spray device 10 in the horizontal direction along the guide rail 16. Thus, the spray nozzle 10A is moved horizontally to the injection position c (step S5), and a release agent or the like is injected toward the cavity 12 at the injection position c (step S6). Thereafter, the spray nozzle 10A is in a reverse mode for returning to the standby position a. The movement cycle in the reverse mode is different from the movement cycle at the time of forward movement. That is, after spraying of the spray nozzle 10A, the spray nozzle 10A is horizontally moved in the opposite direction by the same distance ( horizontal distance L1 corresponding to the depth of the cavity 12) as the movement distance of the follow-up movement process W2 in steps S7 and S8. (Retraction process W3). As a result, the spray nozzle 10 </ b> A surely comes out of the cavity 12. Then, it raises and stops so that it may return only for the moving distance of the horizontal advance process W1 (step S9, S10). As a result, the spray nozzle 10 </ b> A rises while drawing an inclined movement locus (inclination movement process W <b> 4), and can move to the retreat position d outside the cavity 12 at the shortest distance. The spray nozzle 10A thus moved obliquely upward and moved to the retreat position d rises to the standby position a and waits in step S11 (ascending movement process W5).

As described above, in this embodiment, the process of moving the spray nozzle 10A from the standby position a to the injection position c from the mold opening of the die casting machine 11 to the injection operation of the spray nozzle 10A, and the standby position a from the injection position c. Unlike the moving process of returning to the back, in the moving process of returning, the spray nozzle 10A is moved backward by the distance L1 corresponding to the depth of the cavity 12 (the moving distance of the follow-up moving process W2 ), and then the spray nozzle 10A is moved. by increasing while retracted back by the same distance as the moving distance of the horizontal advancement step W1, the spray nozzles 10 a rose to inclined to move to the outside of the cavity 12 in the shortest distance, efficient spray operation can do. Further, in the moving process at the time of returning, first, the spray nozzle 10A is horizontally retracted by a distance L1 corresponding to the depth of the cavity 12, so that the cavity 12 and the spray nozzle 10A do not interfere with each other and the cavity 12 is surely received. It is possible to evacuate. As described above, by increasing the efficiency of the injection operation by the spray nozzle 10A performed after the molding, it is possible to improve the molding cycle as a result. In particular, in a molding apparatus that continuously molds, shortening the spray time is important in terms of increasing productivity. In addition, during the spray operation, the spray nozzle is moved forward by a distance L1 corresponding to the depth of the cavity 12 in addition to the distance L2 narrower than the distance between the spray nozzle 10A and the fixed mold 11A at the lower end position b. Since 10 A surely enters the inside of the cavity 12, the release agent can be accurately and reliably injected toward the cavity 12. Moreover, the operator inputs various conditions for controlling the spray device 10 by means of the key input means 54 to control the operation of the spray device 10. The depth of the cavity 12 is input in advance in the cavity condition setting item column 65. By doing so, it is possible to set the optimum spray position of the spray nozzle 10A and the shortest movement locus to return to the standby position a, which is extremely efficient.

  Although one embodiment of the present embodiment has been described in detail above, the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the gist of the present invention. For example, the spray device 10 and its movement driving means or the basic structure of the die casting machine are not limited to the above-described embodiments, and may be selected as appropriate. Further, in the above embodiment, the cavity 12 is formed in the fixed mold 11A. However, the cavity 12 is formed in the movable mold 11B or in each of the fixed mold 11A and the movable mold 11B. The air blower or the release agent may be sprayed from the spray device 10 toward the respective cavities 12.

It is the rear view of the die-casting machine seen from the non-operation side which shows the state installed on the flame | frame of the die-casting machine of the spray apparatus in a present Example. It is an enlarged front view which shows a spray apparatus same as the above. It is a front view which shows a display screen same as the above. It is explanatory drawing showing the movement process of the spray apparatus same as the above. It is a flowchart which shows operation | movement of a spray apparatus same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mold apparatus 10 Spray apparatus 10A Spray nozzle 11 Die casting machine 11A Fixed mold 11B Movable mold 12 Cavity 14 Frame 15 Base plate 16 Guide rail (support member)
17A Casing (mounting member)
18 Lift drive motor (lift drive means)
19 Slide drive motor (reciprocating drive means)
20 Parallel link mechanism 21 Lower arm (link arm)
22 Upper arm (link arm)
25 Nut member 26 Screw shaft 54 Key input means 55 Display device

Claims (4)

A mold apparatus having a fixed mold and a movable mold and having a concave cavity on the inner surface, a spray nozzle for injecting a release agent or the like into the cavity, and the spray nozzle facing the mold A moving drive means for moving the moving drive means to a lowering position facing the cavity from the standby position of the spray nozzle at a distance from the parting line surface of the mold. a step, the horizontal forward step of pre proceeds to a narrow distance (L2) amount corresponding spray nozzles than the distance at the parting line Menma of the mold from a spray nozzle of the lower end position adjacent to the cavity, the cavity a drive-moving step of the spray nozzle horizontal distance (L1) is advanced toward the cavity corresponding to the depth of the After injection of the release agent due play nozzle, a backward step for horizontally moved in a direction opposite horizontal distance component (L1) of said thrust moving step, a horizontal distance corresponding to the moving distance component (L2) of the horizontal forward movement of a tilting movement step of retracting the spray nozzle to draw a movement trajectory that is inclined by increasing while retracted to the retracted position outside of said cavity, further comprising a rising movement process for raising from the retracted position to the standby position Die-casting machine spray device.   2. The spray device of the die casting machine comprises: a display device for setting the spray device; and means for inputting and setting a distance corresponding to at least a cavity depth in the driving-in movement process. Die casting machine spray equipment.   The movement driving means includes a base plate fixed on the frame of the die casting machine, a support member provided on the base plate, an attachment member slidably guided by the support member, and a base end side of the attachment member A parallel link mechanism composed of a pair of link arms provided with the spray nozzle at the tip thereof, an elevating drive means for rotating the one link arm to raise and lower the spray nozzle, and a horizontal support member. 2. The spray device for a die casting machine according to claim 1, further comprising a reciprocating drive means for reciprocally moving.   The elevating drive means is constituted by an elevating electric motor that can rotate forward and backward, and the reciprocating drive means is constituted by a slide electric motor fixed to the base plate side, and is connected to the mounting member by the slide electric motor. 4. The spray apparatus for a die casting machine according to claim 3, wherein the spray nozzle is slid in a horizontal direction by rotating a nut member screwed with a screw shaft and sliding the mounting member.

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