JPH0540982Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention consists of a mold clamping device that clamps a mold,
The present invention relates to an injection molding machine in which an injection device for injecting molten resin into the mold is arranged orthogonal to a horizontal direction.

[Prior Art] In recent years, in the field of injection molding, the so-called parting injection molding method, in which resin is injected into a cavity formed inside a mold from the side of the contact surface of the mold, has attracted attention. ing.

An injection molding machine used for such a parting injection molding method generally has a mold clamping device that clamps the mold and an injection device that injects molten resin into the mold, so that the operating directions of each are set in a plan view. The nozzle portion at the tip of the injection device is pressed against the side surface of the mold to be clamped by the mold clamping device, and the resin is injected into the mold. Molding is carried out by injecting into a predetermined cavity in a mold via a runner formed between contact surfaces.

In the above-mentioned injection molding machine, an operation panel that can independently command the operation of the mold clamping device and the injection device is fixed on the machine body near the mold clamping device or the injection device. If it is necessary to operate each device independently to adjust the mold clamping force or perform purging work, each device can be operated independently by inputting the necessary operation commands to the operation panel above. It's getting old.

[Problem to be solved by the invention] By the way, the above-mentioned conventional injection molding machine has a structure in which the mold clamping device and the injection device are arranged in an L-shape in plan view, so it is difficult to adjust the mold clamping force, etc. When each device is operated independently for the purpose of operation, it is necessary for the operator to go around to the operation side of the mold clamping device or the injection device and monitor the operation of the device while giving operation commands to the operation panel. Along with this, the orientation of the worker changes within a range of approximately 90° depending on the work content.

However, as mentioned above, in conventional injection molding machines, the operation panel is fixed on the machine body, so
Depending on the orientation of the operation surface, the operation surface may be hidden in the shadows from the operator's perspective, making it difficult to operate the operation panel while monitoring the operating status of the device, resulting in significantly poor operability. There was a drawback.

This invention was made against this background, and the purpose of this invention is to provide an injection molding machine that maintains operability even if the direction in which the worker faces changes depending on the content of the work.

[Means for Solving the Problems] In order to solve the above problems, this invention provides an operation panel at a position where the operation side of the mold clamping device and the operation side of the injection device intersect. The operation surface is supported so as to be pivotable between a position facing the operation side of the mold clamping device and a position facing the operation side of the injection device.

[Function] According to the above configuration, by rotating the operation panel to a position where its operation surface faces the operation side of the device on which work is performed, the operation surface of the operation panel and the worker can always face each other. Whether working on the operation side of the mold clamping device or the injection device, the operation panel can be easily operated while monitoring the operating status of the device.

[Embodiments] Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3.

As shown in FIG. 1, the injection molding machine according to this embodiment includes a mold clamping device 1 for clamping a mold (not shown).
An injection device 2 for injecting molten resin into the inside of the mold is arranged in a substantially L-shape in plan view.

The mold clamping device 1 includes a fixed platen 4 fixed to the upper surface of the machine body 3, and four shaft-shaped tie bars 5 spanned between the fixed platen 4 and the tie bar support part 3a of the machine body 3. (only two are shown in the figure), a movable platen 6 supported by the tie bars 5 and facing the fixed platen 4, a toggle mechanism 7 connected to the back surface 6a of the movable platen 6, and a toggle mechanism 7 connected to the back surface 6a of the movable platen 6. It is equipped with a hydraulic cylinder 8 connected to the hydraulic cylinder 8.

The fixed platen 4 and the movable platen 6 have opposing surfaces 4a and 6b formed as flat surfaces extending in a direction perpendicular to the axial direction of the tie bar 5, so that the mold can be mounted thereon. Furthermore, the movable platen 6 is connected to a hydraulic cylinder 8 which is transmitted via the toggle mechanism 7.
The tie bar 5 is provided so as to be reciprocally movable in the axial direction as the movable platen 6 expands and contracts.
The molds attached to a and 6b are opened and closed.

On the other hand, the injection device 2 includes a cone-shaped hopper 9 that opens toward the top of the machine body 3, and a heating device that extends in a direction perpendicular to the operating direction of the mold clamping device 1, that is, the moving direction of the movable platen 6. The solid resin introduced from the hopper 9 can be melted inside the heating cylinder 10 and injected from the nozzle portion 10a at the tip thereof. Further, the heating cylinder 10 is provided so as to be movable in its axial direction, so that the nozzle portion 10a can be brought into close contact with the side surface of the mold sandwiched between the fixed platen 4 and the movable platen 6. ing. Further, the heating cylinder 10 is provided so as to be able to move to some extent in the direction intersecting the axis thereof, so that the position in the operating direction of the mold clamping device 1 can be adjusted in accordance with the thickness of the mold. ing.

Furthermore, an operation panel 14 for commanding the operations of each of the devices 1 and 2 is disposed at the intersection 13 of the operation side 11 of the mold clamping device 1 and the operation side 12 of the injection device 2. This operation panel 14 is arranged in the vertical direction of the machine body 3 (direction perpendicular to the plane of the paper in FIG. 1).
It is in the shape of a rectangular parallelepiped, and its operation surface 1
5 is provided with various push buttons for independently operating each of the devices 1 and 2 and a monitor (not shown) for monitoring the operating status.

As shown in FIG. 2, the operation panel 14 has its lower part connected to the machine body 3 via a turning mechanism 16, and its operation surface 15 as shown by arrow A in FIG. Operation side 11 of mold clamping device 1
It is possible to turn approximately 90 degrees between a position P1 facing the injection device 2 and a position P2 facing the operating side 12 of the injection device 2.

As shown in FIG. 2, the turning mechanism 16 includes a substantially cylindrical fixing flange 18 fixed to the upper surface of the machine body 3 with bolts 17, and a substantially cylindrical fixing flange 18.
A tubular swivel joint 19 is rotatably fitted into the center hole 18a of the swivel joint 19, and a male threaded portion 19a at the tip of the swivel joint 19 is screwed into the center hole. 18a, and a substantially cylindrical turning flange 20 rotatably supported around the axis of the turning flange 20.
0a is screwed together with the male threaded portion 21a of the connecting bolt 21 disposed on the inner lower surface side of the operating panel 14 and tightened, thereby sandwiching the operating panel 14 between the swing flange 20 and the connecting bolt 21, It is designed to be rotatably connected to the machine body 3.

As shown in FIGS. 2 and 3, the fixing flange 18 has two positioning pins 22, each of which has its tip fixed to an annular groove 18c at the top of the fixing flange 18.
They are fixed at predetermined intervals in the circumferential direction in a protruding state. These positioning pins 22 are for regulating the turning angle of the operation panel 14, and as the turning flange 20 rotates, movable pins are provided that protrude from the lower surface of the turning flange 20 at positions facing the annular groove 18c. 23 to restrict its rotation.

The rotation angle of the movable pin 23, that is, the angle θ sandwiched between two line segments connecting the engagement position of each positioning pin 22 and movable pin 23 and the rotation center P0 of the swing flange 20, is set to approximately 90°. ing.
The positional relationship between the movable pin 23 and the operation panel 14 in the rotational direction of the turning flange 20 is such that when the movable pin 23 engages with one of the positioning pins 22, the operation surface 15 of the operation panel 14 is connected to the mold clamping device 1. The operating surface 15 is set to face the operating side 12 of the injection device 2 when the other positioning pin 22 and the movable pin 23 are engaged with each other.

Further, the fixed flange 18 is formed with a screw hole 24 that penetrates the fixed flange 18 in the radial direction, and a lock lever 25 that can press the swivel joint 19 to restrain its rotation is provided in the screw hole 24. They are screwed together. Further, inside the swivel joint 19 and the connecting bolt 21, a through hole 19b through which a wiring cable connecting a control device (not shown) inside the machine body 3 and a control device inside the operation panel 14 is inserted; 21b is formed.

Next, the operation of the injection molding machine having the above configuration will be explained.

If it is necessary to operate the mold clamping device 1 alone to adjust the mold thickness or mold clamping force, move the operation panel 14 to a position where its operation surface 15 faces the operation side 11 of the mold clamping device 1. Rotate to P1 and rotate mechanism 1
The lock lever 25 of No. 6 is tightened to restrain its rotation. Then, by inputting a predetermined operation command from the operation surface 15 of the operation panel 14, the hydraulic cylinder 8 is activated and the movable plate 6 is moved, and while the operation of the movable plate 4 is continuously monitored, the operation panel 14 is sent as necessary. A predetermined adjustment work is performed by inputting an operation command, for example, a command to change the driving direction of the hydraulic cylinder 8.

On the other hand, when it is necessary to operate the injection device 2 independently in order to align the mold to be clamped by the mold clamping device 1 and the heating cylinder 10 or to perform purging work, the rotation mechanism 16 The lock lever 25 is loosened and the operation panel 14 is rotated to a position P2 where the operation surface 15 faces the operation side 12 of the injection device 2. Thereafter, the lock lever 25 is tightened to restrict rotation of the operation panel 14. And injection device 2
For example, in the case of positioning the heating cylinder 10, the operating direction of the heating cylinder 10 or the heating cylinder 10
While monitoring the position of , the properties of the resin injected from the nozzle part 10a in the case of purge work, etc., necessary operation commands are appropriately input from the operation surface 15 of the operation panel 14 to make predetermined adjustments.

As explained above, in the injection molding machine of this embodiment, the operation panel 14 is located on the operation side of the mold clamping device 1.
1 and the position P2 facing the operation side 12 of the injection device 2, the operator can change the orientation of the operation surface 15 of the operation panel 14 according to changes in the operator's working position. The direction can be changed as appropriate to face the direction. Therefore, even when working from either of the operation sides 11 and 12 of each device 1 and 2, the operation panel 14 can be easily operated while monitoring the operation of each device 1 and 2. The operability of the machine is significantly improved when each device is operated independently.

In this embodiment, the rotation angle of the operation panel 14 is set within a range of approximately 90 degrees, but the injection molding machine of the present invention is not limited to this, and may be changed depending on the size of the machine, etc. The turning angle may be selected as appropriate.

[Effects of the invention] As explained above, according to this invention, by appropriately rotating the operation panel in response to changes in the work position, the direction of the operation surface can be directed toward the operation side of the device performing the work. Therefore, when working on either the operation side of the mold clamping device or the injection device, the operation panel can be easily operated while monitoring the operating status of the device. Therefore, the injection molding machine of the present invention has an excellent effect in that the operability is significantly improved, especially when each device is operated independently for adjusting the mold clamping force, purging work, etc.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an injection molding machine according to an embodiment of the present invention, FIG. 2 is a sectional view showing details of a support portion of an operation panel, and FIG. 3 is a sectional view taken along the line - in FIG. 1... Mold clamping device, 2... Injection device, 11...
Operation side of the mold clamping device, 12... Operation side of the injection device, 14... Operation panel, 15... Operation surface.

Claims (1)

[Claim for Utility Model Registration] A mold clamping device that clamps a mold and an injection device that injects molten resin into the mold are arranged so that their operating directions intersect in a substantially L-shape when viewed from above. In an injection molding machine made of An injection molding machine, characterized in that the injection molding machine is rotatably supported between a position facing the operation side of the mold clamping device and a position facing the operation side of the injection device.