JP2877786B2 - Mold clamping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold clamping device for an injection molding machine.

[0002]

2. Description of the Related Art In a three-plate type clamping device having a stationary platen, a movable platen and a rear platen, such as a clamping device of an injection molding machine, a complicated structure in which various members and mechanisms are complicated between the movable platen and the rear platen. It is a space. These members and mechanisms include a mold clamping mechanism such as a double toggle link, an eject device using a ball screw / nut mechanism, a tie bar, a guide bar that guides a crosshead for driving the toggle link, and signals and power related to these. Electric cables for supply, and hoses for mold piping.

[0003] For this reason, it is difficult to arrange necessary parts between the movable platen and the rear platen so as not to interfere with other members, and the mechanism between the movable platen and the rear platen moves. As a result, hoses and electric cables also move, causing damage due to contact with other members, and interference between the communication cables due to crossing of the electric cables.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a mold clamping device in which a hose for a mold piping and an electric cable are arranged in an orderly manner so that problems of contact and interference do not easily occur.

[0005]

SUMMARY OF THE INVENTION A mold piping hose is used for a flexible hose protection tube, an electric cable for the movable platen is used for a flexible cable protection flexible tube, and an electric cable for the rear platen is used for a rear cable protection flexible tube. House in tube. The hose protection flexible tube is bent along the side surface of the mold clamping device in a vertical plane, and the movable side cable protection flexible tube and the rear side cable protection flexible tube are placed in a horizontal plane between the mold clamping mechanism and the base upper surface. , And the cable introduction side to the mold clamping device is distributed to the left and right sides. A cable guide member extending between the upper surface position and the lower surface position of the platen is bridged on the rear surface of the rear platen, and an electric cable for the rear platen is routed through the guide member.

[0006] The movable side cable protection flexible tube and the rear side cable protection flexible tube are bent on a horizontal plane between the mold clamping mechanism and the upper surface of the base, and the cable introduction side to the mold clamping device is arranged on both right and left sides. The arrangement in which the flexible hose protecting tube is bent in a vertical plane along the side surface of the mold clamping device arranges the cables and hoses in the lower portion of the mold clamping mechanism and prevents mutual interference. The cable guide member bridged from the upper surface position to the lower surface position on the rear surface of the rear platen arranges the cables arranged on the rear surface of the rear platen and prevents the cables from contacting other movable parts behind the mold clamping unit. .

[0007]

Figure 1 DETAILED DESCRIPTION OF THE INVENTION The clamping device 1 definitive injection molding machine shown schematically, the rear platen 3 on the base 2, a movable platen 4 and Stationery descriptor Latin 5.
The rear platen 3 and the stationary platen 5 are fixed to the machine base 2 and connected by a tie rod 6 (FIG. 3). The movable platen 4 is slidably assembled to the tie rod 6 and the stationary platen 5 is moved by a toggle mechanism 7. It is arranged to be able to move back and forth with respect to. The toggle mechanism 7 is driven by a motor 8 for mold clamping attached to the rear platen 3. A mold 9 is mounted between the stationary platen 5 and the movable platen 4.

Between the rear platen 3 and the movable platen 4, a hose protecting flexible tube 10, a movable side cable protecting flexible tube 11 and a rear side cable protecting flexible tube 12 are arranged (FIGS. 1 and 2). . Also, at the rear of the rear platen 3
The cable guide member 13 is arranged (FIG. 3).

The movable-side cable protection flexible tube 11 and the rear-side cable protection flexible tube 12 are arranged between the base 2 and a mold clamping mechanism mounted between the movable platen 4 and the rear platen 3, and have a movable platen in a horizontal plane. The cable introduction side (indicated by an arrow in FIG. 2 ) with respect to the rear platen 4 or the rear platen 3 is bent and arranged so as to be distributed to the left and right sides of the mold clamping device 1. The movable-side cable protection flexible tube 11 accommodates a signal cable, a power supply cable, and other electric cables 15 for driving the eject device 14 attached to the movable platen 4, and a rear-side cable protection flexible tube 12. An electric cable 17 (FIG. 3) such as a power supply cable to the mold clamping motor 8 and the die height adjusting motor 16 attached to the rear platen 3 and a signal cable for controlling these are accommodated therein.

The hose protecting flexible tube 10 is for accommodating the mold piping hoses 18 from the temperature control device, and is bent with the side for introducing the hoses 18 from the temperature control device downward. It is arranged on a vertical plane along the side of the fastening device 1.

On the rear surface of the rear platen 3, the platen 3
The cable guide member 13 extending between the upper surface position and the lower surface position straddles the interlocking mechanism relating to the chain and the mold clamping motor 8, and is further bridged so as not to interfere with each member protruding from the rear surface of the rear platen 3. The electric cable 17 for the rear platen 3 is routed from below to above through the guide member 13 .

According to this configuration, the electric cables 15, 17 and the hoses 18, which have conventionally been left free in the mold clamping device 1, are freely moved.
17 and hoses 18 and are protected by the respective protective flexible tubes 10, 11 and 12, and the electric cables 15 and 17 are separately arranged on the movable platen 4 side and the rear platen 3 side. The complicated space between the lower part of the fastening mechanism and the base is tidy, and the electric cables 15 and 1 are arranged.
There is no interference between the hose 7 and the hoses 18 or interference with other members. As a result, the electric cables 15, 17 and the hoses 18 are not damaged.

The flexible cable protection flexible tube 11 and the flexible cable protection rear tube 12 are bent in a horizontal plane so that the cable introduction side is distributed to the left and right sides of the mold clamping device 1. Since the flexible protection tube 10 is bent in a vertical plane, the flexible protection tubes rarely collide with each other even when the movable platen 4 is retracted and the distance between the movable platen 4 and the rear platen 3 is reduced.

Further, on the rear side of the rear platen 3, a cable is provided.
By using the bull guide member 13, a large number of electric cables 17 passing through the rear surface of the rear platen 3 from the lower portion of the rear platen 3 to the trouble such as diving between complicated interlocking mechanisms and chains. Can be arranged without complicated work. Further, since the electric cable 17 is arranged in an orderly manner, there is no fear that the electric cable 17 may be in contact with other members or be caught in the movable part and damaged even during the operation of the mold clamping device 1.

In the embodiment, the electric cable 17 reaching the upper surface of the rear platen 3 through the cable inner member 13 further passes through a distribution duct 19 disposed on the upper surface. Is connected to
The connection point is protected by the distribution duct 19 and is tidy. Further, the cable guide member 13 bridged on the rear surface of the rear platen 3 may have a duct structure. In addition, the configuration of the present invention is not limited to the illustrated specific structure.

[0016]

As described above, since the hoses for the mold piping and the electric cables are tidy, the appearance of the apparatus is improved, and the product image of the apparatus using this type of mold clamping device such as an injection molding machine is improved. Also, the tidy hoses and electric cables do not come into contact with each other during the operation of the mold clamping device and do not come into contact with other members, and there is no fear of such damage and occurrence of interference with the signal cables. The wiring work of the electric cable at the rear part of the rear platen is simplified.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a mold clamping device.

FIG. 2 is a schematic plan view of a mold clamping device.

FIG. 3 is a perspective view showing a rear surface of a rear platen.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 mold clamping device 2 machine base 3 rear platen 4 movable platen 5 stationary platen 6 tie rod 8 mold clamping motor 9 mold 10 hose protection flexible tube 11 movable side cable protection flexible tube 12 rear side cable protection flexible tube 13 Cable guide member 14 Eject device 15 Electric cable (movable platen side) 16 Die height adjustment motor 17 Electric cable (rear platen side) 18 Temperature control hose 19 Distribution duct

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B29C 45/64-45/68 B29C 45 / 17,45 / 84 B22D 17 / 20,17 / 26 B29C 33/20-33 /twenty four

Claims (2)

(57) [Claims] 1. A mold clamping device mounted on a base, wherein a mold piping hose is housed in a hose protection flexible tube,
The electric cable for the movable platen is accommodated in the flexible cable protection flexible tube, and the electric cable for the rear platen is accommodated in the flexible cable protection rear tube. The flexible hose protective tube is vertically extended along the side of the mold clamping device. The movable-side cable protection flexible tube and the rear-side cable protection flexible tube are bent in a horizontal plane between the mold clamping mechanism and the base upper surface, and the cable introduction side to the mold clamping device is arranged. A mold clamping device characterized by being arranged on both the left and right sides. 2. The mold clamping device according to claim 1 , wherein:
A mold clamping device, wherein a cable guide member extending over the upper surface position and the lower surface position of the platen is bridged on the rear surface of the rear platen, and an electric cable for the rear platen is routed through the guide member.