JP4638786B2 - Molding machine - Google Patents

Description

  The present invention relates to a molding machine such as an injection molding machine or a die casting machine, and in particular, cools the inside of a circuit box housed in a sealed portion of a frame on which an injection system mechanism and a mold clamping system mechanism are mounted. For technology.

  In a molding machine such as an injection molding machine, it is common to have a configuration in which a circuit box with a built-in circuit system unit is placed in a frame on which an injection system mechanism and a mold clamping system mechanism are mounted. is there. As for the arrangement position of the circuit box in the frame, the frame portion where the injection system mechanism is mounted is the same as the frame portion where the mold clamping system mechanism is mounted. Since there are no restrictions from mounting, the frame part equipped with the injection system mechanism can be a sealed structure with sufficient space covered with a cover or floor board on its six sides. It is common to take a layout that houses the circuit box inside the sealed part of the frame part that mounts the circuit. Thus, by storing the circuit box inside the sealed part, safety and appearance Goodness can be ensured.

  By the way, since the circuit system unit housed in the closed space called the circuit box is heated during the molding operation, it is necessary to cool the circuit system unit.

  3 and 4 are views showing the structure of the injection system mechanism side frame, circuit box, etc. in a conventional injection molding machine, and FIG. FIG. 4 is a simplified view as seen from the side, and FIG. 4 is a simplified view of the inside of the frame as seen from above with the upper structure of the frame removed. In FIG. 3, only a part of the structure on the frame is simplified. It is shown.

  3 and 4, reference numeral 51 denotes an injection system mechanism side frame (hereinafter referred to as a frame 51) of an injection molding machine, which has a frame with high mechanical strength, and its six faces are covered and covered with a cover or a floor board. Part. 52 is a front side cover of the frame 51, and 53 is a back side cover of the frame 51. Reference numeral 54 denotes a circuit box mounted on the bottom frame portion of the frame 51 via a support member 55. The circuit box has a structure in which its six surfaces are substantially closed. A plurality of constituent circuit boards are erected and stored.

  Reference numeral 56 denotes two suction fans provided at the lower part on the front side of the frame 51, and the suction fan 56 takes outside air into the sealed portion of the frame 51. Although not shown in the figure, the suction fan 56 is supported by the front frame portion of the frame 51. Reference numeral 57 denotes four suction fans provided on the bottom surface side of the circuit box 54. The suction fan 57 allows the air taken into the sealed portion of the frame 51 from the outside by the suction fan 56 provided on the frame 51. It takes in in the box 54 for work. 58 is one discharge fan provided on the upper part of one side frame part of the frame 51 (a side frame part shared as a part of the mold clamping mechanism side frame). The discharge fan 58 is a circuit box. The air vent hole (not shown) formed in the upper part of the side surface of the body 54 is opposed and closely contacted, and the discharge fan 58 allows the air in the circuit box body 54 to be released into the open space (i.e. It is discharged to an external space (outside the sealed portion of the frame 51).

  3 and 4, reference numeral 59 denotes a plurality of motor drivers (motor drivers for driving a plurality of servo motors) projecting from the outer surface of the circuit box 54, and 60 denotes a circuit box. Reference numeral 61 denotes an SSR portion (solid state relay portion) that protrudes from the outer surface of the body 54, and 61 denotes a heat radiating portion (heat radiating fin) for the motor driver and the SSR portion arranged in the circuit box 54. 62 is an injection system mechanism mounted on the frame 51 (only a part of the heating cylinder is shown in the figure), and 63 is mostly mounted on the mold clamping system mechanism side frame. Only a part (fixed die plate) is a mold clamping system mounted on the frame 51.

  The conventional cooling structure having the above-described configuration shown in FIGS. 3 and 4 is relatively efficient in the inside of the circuit box 54 (that is, the circuit system unit in the circuit box 54), and for the circuit. It is possible to cool the motor driver and the SSR unit that are arranged to protrude outside the box body 54. However, since an air vent hole (not shown) of the circuit box 54 needs to be disposed opposite to the discharge fan 58 provided at a predetermined position above the side surface frame portion of the frame 51, the inside of the frame 51 (the frame 51) The degree of freedom of arrangement of the circuit box 54 in the sealed portion) is remarkably limited, and other configurations (for example, cooling water pumps) to be arranged in the frame 51 are also reduced in degree of freedom of arrangement, It was pointed out that the degree of freedom of layout design in the frame 51 was hindered.

  The present invention has been made in view of the above points, and an object thereof is to increase the degree of freedom of arrangement of the circuit box within the sealed portion of the frame.

  In order to achieve the above object, the present invention accommodates a circuit box containing a circuit system unit in a sealed portion of a frame on which an injection system mechanism and a mold clamping system mechanism are mounted. In a molding machine provided with a suction fan for taking in air taken into the sealed part from the outside by a suction fan provided on the frame into the circuit box body, on the upper side of the circuit box body, A discharge fan is provided to discharge the air outside the circuit box, and a flexible exhaust duct is connected to discharge the air discharged from the discharge fan to the outside of the sealed part. The air is sealed through the exhaust duct. It is configured to discharge outside.

  According to the present invention, the discharge fan for discharging the air in the circuit box outside the circuit box is provided on the upper side of the circuit box, and the air discharged from the discharge fan is sealed in the frame. A flexible exhaust duct for exhausting outside is connected, and air is exhausted outside the sealed part (outside) through the exhaust duct, so that the length of the flexible exhaust duct has a margin. Thus, the circuit box can be arranged at an arbitrary position in the sealed portion of the frame. Therefore, the degree of freedom in layout design in the sealed portion of the frame is greatly increased, and the layout in the sealed portion of the frame can be optimally designed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 and FIG. 2 are diagrams showing configurations of an injection system mechanism side frame, a circuit box, and the like in an injection molding machine according to an embodiment of the present invention (hereinafter referred to as the present embodiment). FIG. 2 is a simplified view in which the back side cover of the frame is partially broken and the inside of the frame is viewed from the back side, and FIG. The structure on the frame is shown only partially simplified.

  1 and 2, reference numeral 1 denotes an injection system mechanism side frame (hereinafter referred to as frame 1) of an injection molding machine, which has a high mechanical strength skeleton and is covered and covered with a cover and a floor board. Part. Reference numeral 2 denotes a front side cover of the frame 1, and 3 denotes a back side cover of the frame 51. Reference numeral 4 denotes a circuit box mounted on the bottom frame portion of the frame 1 via a support member 5 and has a structure in which the six surfaces are substantially closed. A plurality of constituent circuit boards are erected and stored.

  Reference numeral 6 denotes two suction fans provided at the lower part on the front side of the frame 1, and the suction fan 6 takes outside air (outside the sealed portion) into the sealed portion of the frame 1. Although not shown in the figure, the suction fan 6 is supported by the front frame portion of the frame 1. Reference numeral 7 denotes four suction fans provided on the bottom surface side of the circuit box 4. The suction fan 7 allows the air taken into the sealed portion of the frame 1 from the outside by the suction fan 6 provided in the frame 1. It takes in in the box 54 for work.

  Reference numeral 8 denotes a single discharge fan provided inside the upper portion of the circuit box 4. The duct connection portion 9 provided in the discharge opening of the discharge fan 8 has a flexible length with a margin. One end of the exhaust duct 10 is connected. The other end of the exhaust duct 10 is connected to a duct connection portion 11 provided in an exhaust opening of one side frame portion of the frame 51 (a side frame portion shared as a part of the mold clamping system mechanism side frame). The exhaust duct 10 communicates with an open space of the mold clamping mechanism side frame (that is, an external space outside the sealed portion of the frame 1). In the present embodiment, the discharge fan 8 discharges the air in the circuit box 4 out of the circuit box 4, and the air discharged from the discharge fan 8 passes through the flexible exhaust duct 10 to the frame. 1 is discharged to the outside (outside) of the sealed portion.

  In FIGS. 1 and 2, reference numeral 12 denotes a plurality of motor drivers (motor drivers for driving a plurality of servo motors) that protrude from the outer surface of the circuit box 4, and 13 denotes a circuit driver. Reference numeral 14 denotes an SSR portion (solid state relay portion) that protrudes from the outer surface of the box 4, and reference numeral 14 denotes a heat radiating portion (heat radiating fin) for the motor driver and SSR portion that are arranged in the circuit box 4. . 15 is an injection system mechanism mounted on the frame 51 (only a part of the heating cylinder is shown in the figure), and 16 is mostly mounted on the mold clamping system mechanism side frame. Only a part (fixed die plate) is a mold clamping system mounted on the frame 1.

  Here, in the above-described example, air is discharged to the outside through the side surface frame portion shared as a part of the mold clamping system mechanism side frame, but the duct connection portion 11 of the frame 1 is connected to the front of the frame 1. Needless to say, air may be released outside the sealed portion of the frame 1 by being provided on the frame portion, the back surface frame portion, or the side surface frame portion on the opposite side of the drawing. In this case, what is necessary is just to change the position of the discharge fan 8 attached to the upper side of the circuit box 4 according to each.

  As described above, in the present embodiment, the discharge fan 8 for discharging the air in the circuit box 4 to the outside of the circuit box 4 is provided on the upper side of the circuit box 4. Since a flexible exhaust duct 10 for discharging the air exhausted from the frame 1 to the outside (outside) of the frame 1 is connected, and the air is exhausted outside the sealed part of the frame 1 through the exhaust duct 10. Since the flexible exhaust duct 10 has a sufficient length, the circuit box 4 can be arranged at an arbitrary position in the sealed portion of the frame 1. Therefore, the degree of freedom of layout design in the sealed portion of the frame 1 is greatly increased, and the layout in the sealed portion of the frame 1 can be optimally designed.

In the injection molding machine which concerns on one Embodiment of this invention, the back surface side cover of the flame | frame is partially fractured | ruptured, and it is the simplified explanatory drawing which looked at the inside of a flame | frame from the back surface side. In the injection molding machine which concerns on one Embodiment of this invention, it is the explanatory drawing which removed the upper side structure of the flame | frame and simplified and looked at the inside of a flame | frame from the upper surface. It is the explanatory view which simplified the partially broken back surface side cover of the flame | frame in the conventional injection molding machine, and looked at the inside of a flame | frame from the back surface side. It is the simplified explanatory view which removed the upper structure of the frame in the conventional injection molding machine, and looked at the inside of a frame from the upper surface.

Explanation of symbols

1 Injection system mechanism side frame (frame)
DESCRIPTION OF SYMBOLS 2 Front side cover 3 Back side cover 4 Circuit box 5 Support member 6 Suction fan 7 Suction fan 8 Discharge fan 9 Duct connection part 10 Flexible exhaust duct 11 Duct connection part 12 Motor driver 13 SSR part (solid state relay part)
14 Heat radiation part (heat radiation fin)
15 Injection system mechanism 16 Clamping mechanism

Claims (1)

A circuit box containing a circuit system unit is housed in a sealed portion of a frame on which an injection system mechanism and a mold clamping system mechanism are mounted, and the circuit box is accommodated by a suction fan provided on the frame. In a molding machine provided with a suction fan for taking air taken into the sealed portion from the outside into the circuit box,
A discharge fan is provided on the upper side of the circuit box to discharge the air inside the circuit box to the outside of the circuit box, and the air discharged from the discharge fan is placed outside the sealed portion. A molding machine, wherein a flexible exhaust duct for discharging is connected, and air is discharged outside the sealed portion through the exhaust duct.

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