JP3849050B2 - Swivel injection molding machine with multiple mold clamping devices - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a swivel injection molding machine in which one injection device is swung with respect to a plurality of mold clamping devices to enable injection of a material resin for each mold clamping device.
[0002]
[Problems to be solved by the invention]
In a swivel type injection molding machine in which multiple mold clamping devices are arranged radially with a bed along the circumference of a turntable equipped with an injection device, a work space is set for each mold clamping device. There is no distinction between working side and non-working side as in the case of injection molding machines, and maintenance management is done from the outside adjacent part for the mold clamping device of both ends row and from the operation part on the side of the injection bed for the injection device. There is a door.
[0003]
Safety measures are applied to these doors. However, in a configuration in which operation is stopped by opening, as in normal safety doors, safety doors can be opened freely even during operation. If it is adopted in the required swivel type injection molding machine, there is a possibility that one of them is accidentally opened and the operation is stopped.
In addition, although all safety doors are closed, automatic operation becomes possible, but when automatic operation is started only by closing safety doors, there may be negligence in confirming complete closure. In spite of incomplete closure of some safety doors, the operator may mistakenly consider a failure and stop operation.
[0004]
The present invention has been conceived from the above circumstances. The purpose of the present invention is to allow the operator to confirm that the safety door is closed by both physical means and electrical means, and to easily open the safety door during operation. It is an object of the present invention to provide a swivel type injection molding machine provided with a plurality of mold clamping devices capable of performing a safety operation even if there are safety doors at a plurality of locations by configuring safety means so that it cannot be performed.
[0005]
[Means for Solving the Problems]
According to the present invention, the injection device is mounted on a turntable provided on the upper surface of the bed, and a plurality of mold clamping devices are arranged radially on the side of the bed along the circumference of the turntable. The swivel type injection molding machine is constructed so that it can correspond to each mold clamping device by swivel movement, and the periphery of the injection bed is safely surrounded by the panel, and it is located at the outside adjacent portion of the mold clamping device in both end rows. An electric lock is provided on the safety door of the surrounding enclosure part and the safety door on the operation part on the side of the injection bed, and the electric lock is fitted to the main body with the electric lock on the enclosure part side and the main body. It consists of a locking member on the safety door side with a terminal, and the safety door is closed by an artificial operation on the locking member side, and after the main body and the terminal are fitted, the electric lock is locked by turning on the switch. From composition , Is that.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
In the figure, reference numeral 1 denotes an injection device, which is mounted at the center of a turntable 3 provided on the upper surface of a box-type injection bed 2. On the three sides of the injection bed 2, three mold clamping devices 4, 5, 6 that are located radially along the circumference of the turntable 3 are connected to the beds 2, 8, 9. They are integrally connected so as to contact the side with the ridge.
[0007]
On the periphery of the injection bed 2, a safety enclosure 10 by a panel is circulated, and a quadrilateral opening 11 is formed in the enclosure portion located on the outside adjacent portion of the mold clamping devices 4 and 6 at both ends of the safety enclosure 10. The safety door 12 by the opening door is attached to the opening 11. A safety door 13 by a sliding door is provided on the operation portion on the side surface of the injection bed 2 so as to be retractable inside the enclosure portion 10b.
[0008]
The safety doors 12 and 13 are provided with electric locks 14 and 15, respectively. The electric locks 14 and 15 are a lock having a box-shaped main body 16 having an electric lock and a U-shaped terminal 18 inserted into a horizontally long receiving opening 17 opened on a side surface of the main body 16. And the member 19.
[0009]
The electric lock 14 on the side of the safety door 12 has a main body 16 fixed to the lower corner of the enclosing portion with the receiving port 17 facing upward, and the terminal 18 bent at one end and projecting at the lower end. The holding member 20 provided on the lower side of the safety door 12 is vertically inserted so as to be vertically movable so that the holding member 20 is positioned directly above the lower side edge of the enclosure portion when opened. And the above-described locking member 19.
[0010]
In such a configuration, the safety door 12 cannot be opened unless the locking member 19 is pulled up and the terminal 18 is artificially extracted from the main body 16, and when the locking member 19 is released after opening, the safety door 12 is lowered by its own weight. If the terminal 18 is positioned below the lower edge of the opening of the surrounding portion 10a and the safety door 12 is closed as it is, the terminal 18 hits the lower edge of the opening and cannot be closed.
Therefore, since the locking member 19 must be pulled up even at the time of closing, the complete closing of the safety door 12 is confirmed by the operation of such physical means.
[0011]
Next, the electric lock 15 on the side of the safety door 13 has a body 16 fixed to a seat plate 21 erected from the lower side on the side surface of the enclosing portion with the receiving port 17 facing backward, and the terminal protruding from the side end. The locking member 19 is attached to the lower side of the rear end edge of the safety door 13 so that 18 is opposed to the receiving port 17.
[0012]
Further, a stopper device 22 for preventing the insertion of the terminal 18 into the receiving port 17 is provided over the upper portion of the seat plate 21 and the side surface of the door. The stopper device 22 is composed of a horizontally long protruding member 23 on the side of the door and a stopper 25 that is pivotally supported by a support member 24 that is fixed to the seat plate 21 and protrudes upward. The stopper 25 is a lever-like member. The protrusion member 23 is provided at a position where the movement of the protrusion member 23 is prevented. A recess 26 is formed inside the support member 24, and the protruding member 23 passes through the recess 26.
[0013]
In such a configuration, it is necessary to rotate the stopper 25 every time the safety door 13 is opened and closed and remove it from the moving line of the protruding member 23, so that the body 16 and the terminal 18 of the locking member 19 Therefore, the opening and closing of the safety door 13 is confirmed by the operation of physical means such as insertion of the terminal 18 into the receiving port 17 of the main body 16.
[0014]
As described above, in the present invention, the safety door is closed by an artificial operation on the side of the locking member, and after the terminal is inserted into the main body, the electric lock is locked.Before locking the electric lock with the switch ON, A swivel-type injection molding machine that requires three manual operations such as "lifting a locking member or stopper-closing a safety door-pushing a terminal into a receptacle" However, it is inevitably possible to make sure that all safety doors are completely closed, and the safety door cannot be opened without releasing the mating between the main body and terminals. Work hazards due to opening and closing are prevented.
[Brief description of the drawings]
FIG. 1 is a schematic plan view of a swivel type injection molding machine provided with a plurality of mold clamping devices according to the present invention.
FIG. 2 is a partial perspective view showing an operation part side of an injection bed.
FIG. 3 is a partial perspective view showing a closed and locked state of a safety door by an opening door.
FIG. 4 is a partial perspective view showing the unlocked state of the safety door by the opening door.
FIG. 5 is a partial perspective view showing a state immediately before the safety door is closed by a sliding door.
FIG. 6 is the right end face of the above.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Injection device 2 Injection bed 3 Clamping device 10 of both ends row | line | column Clamping device 10 Safety enclosure 12 Safety door by an opening door 13 Safety door by a sliding door 14 Electric lock by an opening door 15 Electric locking by a sliding door 16 Main body 17 Receptacle 18 Terminal

Claims (1)

An injection device is mounted on a turntable provided on the upper surface of the bed, and a plurality of mold clamping devices are arranged radially on the side of the bed along the circumference of the turntable. A swivel type injection molding machine configured to be compatible with a fastening device and the periphery of the injection bed is safely surrounded by a panel;
And safety door enclosure portion located outside the adjacent portion of the mold clamping device at both ends column, the electric lock is provided with safety doors on the operation unit of the injection bed side, the electric lock interior thereof the electric lock enclosure portion side And a safety door locking member with a terminal fitted to the main body. After the safety door is closed by manual operation on the locking member side, the main body and the terminal are fitted. The rotary injection molding machine provided with a plurality of mold clamping devices, characterized in that the electric lock is locked by turning on the switch .

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