JPH0624178Y2 - Resin molding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a resin molding machine, and more particularly, to an electric servomotor housed in a molded product take-out device from a driver box for an electric servomotor or attached to the servomotor. The length of the electrically conductive wire that is electrically connected to the encoder is shortened, and the installation position of the driver box for the electric servomotor and the wiring position of the electrically conductive wire are set so that they do not interfere with the operator. Technology for doing.

[Prior Art] Generally, as shown in FIG. 5, a conventional resin molding machine of this kind generally has a molded product ejecting chuck portion along a track X extending in the longitudinal direction and a track Y extending in the width direction of the resin molding machine 2. A molded product take-out device 3 for reciprocating 3A is mounted on a fixed mold holder 4 of a resin molding machine 2 via a leg portion 5. The fixed mold holder 4 includes a heating cylinder 6A and a hopper dryer 6
It is arranged so as to face the injection device 6 including B. Then, an electric servo motor that outputs a control signal to a DC servo motor or an AC servo motor (not shown) housed in the molded product take-out device 3 and an encoder (not shown) attached to these servo motors. Driver box 1 (DC servo motor or AC
The servo motor must have a dedicated electric servo motor driver box 1) and a control box 1A that outputs a control signal to the electric servo motor driver box 1 on the floor near the resin molding machine 2. It has been installed.

However, in the floor-standing type structure in which the driver box 1 for the electric servo motor is installed on the floor near the resin molding machine 2, the AC, DC stored in the molded product take-out device 3 from the driver box 1 for the electric servo motor The distance to the servomotor and the encoder becomes long, and naturally the length of the conductive wire EW for outputting the control signal from the electric servomotor driver box 1 to the AC and DC servomotors and the encoder becomes long. As described above, as the length of the conductive wire EW becomes longer, the antenna action is increased, the influence of noise on the AC and DC servo motors and the encoder is increased, and the malfunction of the molded product take-out device 3 is caused. It is a factor that lowers the system.

On the other hand, since a large amount of electricity is applied to the conductive wire EW, a large cross-sectional area is required. Moreover, the required number of conductive wires EW is large.
Specifically, 12 (core) conductive wires EW for the 1-axis control method
Is required, and the molded product take-out device 3 of this type requires a 3-axis control system or a 6-axis control system.
A 62-core multi-core conductive wire EW is required. That is, a large number of long conductive lines EW are required. Therefore, the initial cost is high and it is economically disadvantageous.

On the other hand, in the floor-standing type structure in which the driver box 1 for the electric servo motor is installed on the floor near the resin molding machine 2,
A part of the conductive wire EW will be wired on the floor surface. When a part of the conductive wire EW is laid on the floor surface in this way, it interferes with the feet of the worker, which disturbs the working environment and may cause the conductive wire EW to be cut due to the interference. ing.

[Problems to be solved by the invention] The problem to be solved is that the length of the conductive wire increases the antenna action and the influence of noise on the AC and DC servo motors and encoders increases. It causes malfunctions, reduces the accuracy of molded product removal, and requires a large number of conductive wires with a large cross-sectional area and long dimensions, which increases the initial cost and is economically disadvantageous. Since they interfere with each other, they become an obstacle and reduce workability, and there are various points such as the point where the conductive wire is cut due to the interference.

[Means for Solving the Problems] The present invention is a fixed mold of a resin molding machine, in which a molded product take-out device for reciprocally moving a molded-product take-out chuck portion along a track extending in the longitudinal direction and the width direction of the resin molding machine. In a resin molding machine mounted on a holder, the mold of the fixed mold holder is displaced to one selected from one side and the other side in the width direction with respect to the central axis of the resin molding machine in the longitudinal direction. The driver box for the electric servomotor is mounted on the molded product take-out device by setting it at a position that is closer to the injection device than the mounting surface, reducing the influence of noise and avoiding malfunctions It has achieved the purpose of improving the take-out system, lowering the initial cost, eliminating the interference with the feet of workers, improving the working environment, and preventing the cutting of conductive wires due to interference.

[Operation] According to the present invention, the length of the conductive wire can be shortened. As a result, the degree of influence of noise on the AC and DC servo motors and encoders is reduced. Further, since the conductive wire is not wired on the floor, there is no interference with the worker's feet. Further, it does not interfere with the reciprocating movement of the molded product take-out chuck portion.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a resin molding machine to which the present invention is applied, FIG. 2 is a plan view of the same, and FIG. 3 is a left side view of the same. The features of the present invention relate to the installation position of the driver box for the electric servomotor, and the other members except for these and the configuration thereof are the same as those of the conventional example. Therefore, in FIGS. Corresponding parts are designated by the same reference numerals, and detailed description thereof will be omitted.

1 to 3, in the molded product take-out device 3, the base end of the track Y is located near one side of the longitudinal center axis C of the resin molding machine 2, and the tip side is the other side of the center axis C. The leg portion 5 that is largely extended to the lower side and is provided below the base end portion side is mounted and fixed to the fixed mold holder 4 of the resin molding machine 2. Then, the driver box 1 for the electric servomotor is provided with the leg portion 5 of the molded product take-out device 3 via the bracket 7.
Installed on. That is, the driver box 1 for the electric servomotor is slightly displaced to one side in the width direction from the central axis C in the longitudinal direction of the resin molding machine 2 and to the injection device 6 side from the mold mounting surface 4A of the fixed mold holder 4. It is attached to the molded product take-out device 3 in a state of being set in a biased position.

With such a configuration, A that is housed in the molded product take-out device 3 from the electric servo motor driver box 1
AC, DC (not shown) from the electric servo motor driver box 1 since the distance to the C, DC servo motor and encoder becomes shorter than that of the conventional resin molding machine 2.
The length of the conductive wire EW (not shown) that outputs the control signal to the servo motor or the encoder can be shortened. As a result, the antenna action of the conductive wire EW is significantly reduced, the influence of noise on the AC and DC servo motors and encoders is extremely reduced, and malfunction of the molded product take-out device 3 is prevented,
It is possible to suppress deterioration of the take-out accuracy of the molded product.

Further, even if the required number of conductive wires EW is large, the length thereof is short, so that the initial cost is lower than that of the conventional resin molding machine 2, which is economically advantageous, and the conductive wire EW is electrically conductive to the feet. Since the line EW does not interfere, the working environment is improved, and the conductive line EW is not cut off due to the interference. Further, the electric servo motor driver box 1 does not interfere with the reciprocating movement of the molded product taking-out chuck portion 3A.

In the above embodiment, the driver box 1 for the electric servo motor is attached to the molded product take-out device 3 with a slight displacement from the longitudinal center axis C of the resin molding machine 2 to one side in the width direction. However, the present invention is not limited to the above-described embodiment, and as shown in FIG. 4, the base end portion in the orbit Y direction of the molded product take-out device 3 may be the central axis of the resin molding machine 2 in the longitudinal direction. It is located on the other side in the width direction than C, the tip end side is extended largely to one side in the width direction from the central axis C, and the leg portion 5 provided below the base end side is fixed to the resin molding machine 2. A configuration in which the driver box 1 for an electric servo motor is mounted and fixed to a die holder 4 and is attached to a leg portion 5 of a molded product take-out device 3 via a bracket 7, that is, the driver box 1 for an electric servo motor is a resin molding machine. In the longitudinal direction of 2 Slightly displaced to the other side of the axis C,
Also, from the die mounting surface 4A of the fixed die holder 4 to the injection device 6
Even with the configuration in which the molded product take-out device 3 is attached in a state in which the position is biased to the side, the same action and effect as those of the above-described embodiment can be obtained.

[Effects of the Invention] As described above, according to the present invention, the driver box for the electric servomotor is selected from one side and the other side in the width direction of the resin molding machine with respect to the central axis of the resin molding machine in the longitudinal direction. Since it is configured to be displaced and set at a position biased to the injection device side by the mold mounting surface of the fixed mold holder and mounted on the molded product take-out device, the length of the conductive wire can be shortened. As a result, the degree of influence of noise on the AC and DC servo motors and encoders is reduced, malfunction of the molded product take-out device can be prevented, deterioration of precision of taken-out accuracy of molded products can be suppressed, and initial cost can be reduced. It is possible to secure economic advantage. In addition, since the conductive wire does not interfere with the operator's feet, the working environment is improved, and the conductive wire can be prevented from being cut due to the interference. Of course, the reciprocating movement of the chuck for taking out the molded product does not interfere with the driver box for the electric servo motor.

[Brief description of drawings]

FIG. 1 is a front view of a resin molding machine of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a left side view of the same, FIG. 4 is a plan view showing a modification of the present invention, and FIG. It is a partially exploded perspective view. 1 ... Electric servo motor drive box 2 ... Resin molding machine 3 ... Molded product take-out device 3A ... Molded product take-out chuck part 4 ... Fixed mold holder 4A ... Fixed mold holder mold mounting surface 6 ...... Injection device C …… Longitudinal center line of resin molding machine X …… Track extending in the longitudinal direction of resin molding machine Y …… Track extending in the width direction of the resin molding machine

Claims (1)

[Scope of utility model registration request] 1. A resin molding machine in which a molded product taking-out device for reciprocally moving a molded product taking-out chuck part along a track extending in a longitudinal direction and a width direction of the resin molding machine is mounted on a fixed mold holder of the resin molding machine. In the above, the resin molding machine is displaced to one selected from one side and the other side in the width direction with respect to the central axis in the longitudinal direction, and is biased to the injection device side from the mold mounting surface of the fixed mold holder. The resin molding machine is characterized in that the driver box for the electric servo motor is attached to the molded product take-out device set to a different position.