JPH069742U - Die casting machine spray device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a spray device for a die casting machine, which has improved workability and safety when replacing a spray head in a link type spray device. [Structure] The main body is provided with a link mechanism and an actuator for driving the link mechanism, and the spray head attached to the end of the link mechanism is moved up and down between the fixed and movable molds with the mold opened, and the cavity surface of both molds is moved. (F) A spray device for a die casting machine that applies a release agent, including a swivel base that rotatably supports the main body horizontally in a bracket fixed to the upper part of the fixed die plate side, and an actuator that swivels the swivel base. When the spray head is replaced, the main body is rotated, and then the spray head is lowered to the outside of the die casting machine.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a spray device for a die casting machine, and more particularly to improving workability and safety when replacing a spray head in a link type spray device installed on the upper side of a fixed die plate.

[0002]

[Prior art]

 The die casting machine is equipped with a spray device that opens both fixed and movable molds and applies a mold release agent to the cavity surfaces of both molds with the gun of the spray head. It has a moving mechanism so that it can be applied between the two dies by applying it, and after applying, it can be retracted to a position where it does not interfere with the mold closing. As a conventional spray device, there is a link type spray device disclosed in Japanese Utility Model Publication No. 2-4768 by the present applicant, which will be described.

FIG. 3 shows a die casting machine that opens and closes a movable die plate 23 guided by a tie bar 22 toward a fixed die plate 21 by a mold clamping device (not shown). The mold is opened and closed between the fixed and movable molds 24 and 25 that are mounted, and the drawing shows the mold open state. The spray device main body 26 is fixed to the upper part of the fixed die plate 21, one side of the links 29, 30 is pivotally supported by the shafts 27, 28 arranged in the main body 26, and the other side of the links 29, 30 is provided with the link 31. A link mechanism 32 having one side connected is provided, and a spray head 33 is attached to the other side of the link 31. A piston rod 36 of a cylinder 35 is connected to a drive arm 34 which is pivotally supported by a shaft 27 integrally with a link 29, and a link mechanism 32 is driven. A plurality of guns 38 connected to the spray head 33 by piping through a distributor (not shown) are attached.

The operation of the thus configured spray apparatus will be described. First, with the fixed and movable molds 24 and 25 opened, the link mechanism 32 pivotally supported by the spray device main body 26 fixed to the upper part of the fixed die plate 21 is driven by operating the cylinder 35. Then, the spray head 33 suspended on the link 31 is lowered between the molds 24 and 25. Next, a mold release agent is applied from the plurality of guns 38 of the spray head 33 to the cavity surfaces of both molds. After application, the link mechanism 32 is driven again to raise the spray head 33 to its original position.

[0005]

[Problems to be solved by the device]

 By the way, when the die casting machine is fixed and moved, the spray head of the spray device that applies the mold release agent to the cavity surfaces of both dies is replaced in the same way when the dies are replaced according to the cavity shapes of both dies. To be done. In this case, in the spray device as described above, the link mechanism is driven in a state where the mold is opened to lower the spray head between the two molds for replacement work. For this reason, it is difficult to work in a narrow space, and the safety of work between the two molds that have been opened depends on the safety lock device of the mold clamping device. If the spray head is raised above the fixed die plate for replacement work, the work will be done at a high place and the footing will be poor, so it will be necessary to secure a robust and safe work place. In recent years, it has been strongly required to implement measures for 3K for workers, such as replacing the spray head.

Therefore, an object of the present invention is to provide a spray device for a die casting machine, which has improved workability and safety when replacing the spray head in a link type spray device.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention has a main body installed on an upper portion of a fixed die plate side, a main body having a link mechanism and an actuator for driving the link mechanism, and a spray head attached to an end of the link mechanism. In the spray device of the die casting machine, in which the mold is opened and closed between the fixed and movable molds and the mold release agent is applied to the cavity surfaces of the molds, the spray device is attached to the bracket fixed on the upper side of the fixed die plate. A swivel that pivotally supports the main body in a horizontal direction and an actuator that swivels the swivel are provided, and when replacing the spray head, the spray head is die-cast after the main body is swung. The spray device for a die casting machine is characterized in that it is configured to be lowered to the outside of the machine.

[0008]

[Action]

 When replacing the spray head of the spray device, the actuator that swivels the swivel rotatably supported by the bracket fixed to the upper part of the fixed die plate was actuated to horizontally swivel the spray device body. After that, the actuator that drives the link mechanism of the main body is operated to lower the spray head to the outside of the die casting machine, and the operator who holds it on the floor can replace the spray head safely and with good workability.

[0009]

【Example】

 Next, an embodiment of a spray device for a die casting machine according to the present invention will be described in detail with reference to FIGS. For convenience of explanation, the same components as those of the conventional spray device shown in FIG. 3 are designated by the same reference numerals to simplify the description. In FIG. 1, a fixed die 24 having a fixed die 24 attached thereto is guided by a tie bar 22 having a movable die plate 23 having a movable die 25 attached thereto and slid by a die clamping device (not shown). The mold opening state of the die casting machine that opens and closes the mold is shown.

Reference numeral 12 denotes a swivel base, in which the shaft portion 13 is integrally formed, and the shaft portion 13 is fitted into a bearing 15 provided on a bracket 14 fixed to an upper portion of the C frame 39 on the fixed die plate 21 side. It is rotatably supported by. Reference numeral 16 denotes a revolving arm, one end of which is fixed to the tip of the shaft portion 13 of the revolving base 12. In FIG. 2, reference numeral 17 denotes a hydraulic / pneumatic cylinder, which is pivotally supported by a bracket 14 by a pivot 18 provided on the cylinder head. The other end of the turning arm 16 is connected to the tip of the cylinder rod 19 via a pin 20. By supplying a fluid from a hydraulic / pneumatic pressure source (not shown) to the hydraulic / pneumatic cylinder 17 through a valve, the cylinder rod 19 advances and retreats, the revolving arm 16 revolves, and the revolving base 12 revolves.

A spray device body 26 is fixed to the upper surface of the swivel base 12, and the body 26 is basically provided with the same components as those of the conventional spray device. That is, the link mechanism 32 is configured by pivotally supporting one side of the links 29, 30 on the shafts 27, 28 provided on the main body 26 and connecting one side of the link 31 to the other side of the links 29, 30. At the same time, the link mechanism 32 is driven by connecting a piston rod 36 of a hydraulic / pneumatic cylinder 35 to a drive arm 34 integrally supported with the link 29 and supplying a fluid from a hydraulic / pneumatic pressure source (not shown) via a valve. It is what is done. A spray head 33 is suspended and attached to the other side of the link 31. A plurality of guns 38 are attached to the spray head 33, which are connected by pipes via a distributor (not shown) and apply a release agent to the cavity surface of the mold.

In the spray device according to the present invention configured as described above, the basic operation is performed in the same manner as the conventional device, and the link mechanism 32 provided in the main body 26 is driven to open the mold. The spray head 33 is moved up and down between the molds 24 and 25, and the mold release agent is applied from the plurality of guns 38 to the cavity surfaces of the molds 24 and 25.

Next, when the spray head 33 of the spray device is replaced according to the replacement of the two molds, the spray head 33 is rotatable on the bracket 14 fixed to the upper portion of the C frame 39 on the fixed die plate 21 side. The swivel base 12, which is pivotally supported on the upper surface and has the spray device main body 26 fixed to the upper surface thereof, is connected to the tip of the cylinder rod 19 by supplying a fluid from a hydraulic / pneumatic pressure source (not shown) to the hydraulic / pneumatic cylinder 17 to operate it. When the main body 26 is horizontally rotated by rotating the rotating arm 16, the hydraulic / pneumatic cylinder 35 that drives the link mechanism 32 of the main body 26 is provided with a valve from an unillustrated hydraulic / pneumatic pressure source. The spray head 33 is lowered to the outside of the die-casting machine by supplying and operating the fluid through the spray head 33 so that an operator who holds it on the floor can easily and safely exchange the spray head 33. Exchange is performed.

[0014]

[Effect of device]

 Therefore, in the present invention, the main body of the link type spray device is fixed to the upper surface of the swivel rotatably supported in the horizontal direction by the bracket fixed to the upper part of the fixed die plate side, and the actuator is provided and the swing arm is interposed. Due to the structure of turning the swivel base, when replacing the spray head of the spray device, after turning the main body horizontally, the link mechanism of the main body is driven to lower the spray head to the outside of the die casting machine. Since the spray head is replaced by an operator who holds it on the floor, it is not necessary to lower the spray head between the two molds with the mold open and perform difficult work in a narrow space as in the conventional case. , The safety of work between the opened molds is no longer dependent only on the safety lock device of the mold clamping device. Can be improved even gone to perform replacement work scaffolding is poor altitude at a position to raise the spray head to the fixed die plate top, the workability and safety definitive replacement of the spray head.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of a spray device of a die casting machine of the present invention.

FIG. 2 is a plan view taken along the line YY of FIG.

FIG. 3 is a schematic view showing a link type spray device of a conventional die casting machine.

[Explanation of symbols]

 12 swivel base 13 shaft part 14 bracket 15 bearing 16 swivel arm 17 hydropneumatic cylinder (actuator) 21 fixed die plate 24 fixed mold 25 moving mold 26 main body 32 link mechanism 33 spray head 34 drive arm 35 cylinder (actuator) 38 gun

Claims (1)

[Scope of utility model registration request] 1. A main body is installed on an upper portion of a fixed die plate side, a link mechanism and an actuator for driving the link mechanism are provided in the main body, and a spray head attached to the end of the link mechanism is fixed by opening the mold. In a spray device of a die casting machine that raises and lowers between two moving molds and applies a release agent to the cavity surfaces of the two molds, rotate the spray device body horizontally on a bracket attached to the upper part of the fixed die plate side. A swivel base that is movably supported and an actuator that swivels the swivel base are provided. When the spray head is replaced, the main body is swung, and then the spray head is lowered to the outside of the die casting machine. A spray device for a die casting machine, which is configured as described above.