JPH0630423Y2 - Lens molded product take-out device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection mold for injecting a lens molded product for, for example, a camcorder, and in particular, it is possible to easily take out a lens molded product injection-molded by the injection mold from the injection mold. The present invention relates to a device for taking out a lens molded product.

[0002]

2. Description of the Related Art Generally, a lens molded product takeout device for taking out a lens molded product for a camcorder, which requires high precision and high gloss, from an injection mold has a long sleeve pin.

[0003]

Therefore, in the above-mentioned conventional device for taking out a lens molded product, when the lens molded product is taken out from the injection mold, the lens molded product is deformed or the lens molded product is deformed. There were problems such as scratches on the surface of.

The present invention has been made in view of the above-mentioned problems, and when the lens molded product injection-molded by the injection mold is taken out from the injection mold, the lens molded product is deformed or the surface thereof is changed. It is an object of the present invention to provide a device for taking out a lens molded product which is free from scratches and the like.

[0005]

In order to achieve such an object, a lens molded product take-out device of the present invention is a pushing plate member vertically moved by an eject member, and a pushing plate member of the pushing plate member. A first push pin and a second push pin which are arranged on the upper part and which are interlocked with the push plate member to move in the vertical direction;
A lens molded product having a pin support plate member for supporting the first push pin and the second push pin so as to be fixed to the push plate member, and a sleeve pin arranged below the lens molded product. Of the lower core, an auxiliary fixing plate fixed to the lower part of the lower core and an upper part of the auxiliary fixing plate. The upper end of the second push pin is brought into contact with a predetermined position on the lower surface of the auxiliary fixing plate. The sleeve pin is arranged in
When the second push pin is moved upward, the auxiliary push plate is moved in association with the second push pin, the auxiliary safety pin arranged on the upper part of the auxiliary push plate, and the auxiliary push plate. Auxiliary pin support plate fixed to the upper part of the auxiliary push plate so that the safety pin and the sleeve pin are held on the auxiliary push plate without floating, and the auxiliary pin support plate and the auxiliary push plate. And an auxiliary guide pin that guides the lens so that it moves upward without moving in the left-right direction when the lens is moved upward, and the auxiliary that is inserted into the auxiliary safety pin and the lens molded product is taken out from the injection mold. It is characterized in that the pushing plate and the auxiliary pin supporting plate are provided with elastic means for restoring them to their original positions.

[0006]

According to the lens molded product take-out device of the present invention having the above-described structure, since the auxiliary pusher plate moves the sleeve pin disposed under the lens molded product with a uniform force,
The lens molded product can be easily taken out of the injection mold without being deformed or scratched on the surface.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings.

FIG. 1 is a sectional view showing an injection mold in which a lens molded product take-out device of the present invention is arranged, and FIG. 2 is an upper part of an injection mold in which a lens molded product take-out device of the present invention is arranged. It is sectional drawing which shows the state which the board | substrate and the lower board | substrate were isolate | separated.

1 and 2, reference numeral 1 is an upper fixing plate on which a socket ring 16 and a spool bush 17 are arranged. On the lower part of the upper fixing plate 1, an upper substrate 2 on which a guide bush 10 is arranged so that a guide pin described later can be inserted and removed is fixed by a fixing bolt 31. Is provided with the upper core 20 for forming the outer shape of the lens molded product 35.

Reference numeral 6 is a lower fixing plate having a hole 22 for inserting and removing an eject member (not shown),
A leg member 5, a support plate 4, and a lower substrate 3 are sequentially stacked on the lower fixing plate 6, and the leg member 5, the supporting plate 4, and the lower substrate 3 are attached to the lower fixing plate 6 by a fixing bolt 4. It is fixed.

A space is formed by the lower fixing plate 6, the leg members 5 and the support plate 4, and a pushing plate member 8 which is vertically moved by an eject member (not shown) is arranged in the space. Has been done. A first push pin 33 for taking out the runner member and a second push pin 34 whose upper end portion is located below the auxiliary push plate 27, which will be described later, are arranged above the push plate member 8. The first push pin 3 of these
3 and the second push pin 34 are placed on the push plate member 8 without being moved by the pin support plate member 7.

That is, the first member is provided on the upper part of the pushing plate member 8.
After the push pin 33 and the second push pin 34 are arranged, the pin support plate member 7 is fixed to the push plate member 8 with the fixing bolt 41, so that the first push pin 33 and the second push pin 34 are fixed. The moving pin 34 is placed on the pushing plate member 8 without being moved.

A guide pin 9 which is inserted into and removed from a guide bush 10 provided on the upper substrate 2 is provided on the lower substrate 3, and the upper core is provided at a substantially central portion of the lower substrate 3. A lower core 21 is provided to which a lower core pin 22 that is in contact with 20 and forms the outer shape of the lens molded product 35 is fixed.

Further, an auxiliary fixing plate 26 having a hole for inserting the first pushing pin 33 and the second pushing pin 34 is fixed to the lower portion of the lower core 21 by a fixing bolt 42. An auxiliary pushing plate 27 is mounted on the auxiliary fixing plate 26.

Further, on the upper portion of the auxiliary pushing plate 27,
The sleeve pin 25 for taking out the lens molded product 35 and the auxiliary safety pin 31 are placed, and the auxiliary pin support plate 2
According to 8, the sleeve pin 25 and the auxiliary safety pin 31 are
It is mounted on the auxiliary pushing plate 27 without being idled.

That is, after the sleeve pin 25 and the auxiliary safety pin 31 are placed on the upper part of the auxiliary push plate 27, the auxiliary pin support plate 28 is fixed to the auxiliary push plate by a fixing means such as a fixing bolt (not shown). By being fixed to 27, the sleeve pin 25 and the auxiliary safety pin 31 are placed on the auxiliary pushing plate 27 without being loosened.

The auxiliary pushing plate 27 and the auxiliary pin support plate 28
An auxiliary guide pin bush 30 is arranged at a predetermined position. An auxiliary guide pin 29 is fixed to the auxiliary fixing plate 26, and when the auxiliary pushing plate 27 and the auxiliary pin support plate 28 are moved, the auxiliary guide pin 29 is moved.
However, the auxiliary pushing plate 27 and the auxiliary pin support plate 28 are guided so as to move in the left-right direction without floating.

An elastic means 43 is inserted into the auxiliary safety pin 31 so that the auxiliary pushing plate 27 and the auxiliary pin support plate 28 are smoothly moved after the lens molding 35 is taken out of the injection mold. It is designed to be restored to its original position.

The operation and effect of the lens-molded product take-out device of this embodiment having the above-described structure will be described.

After the lens molded product 35 is injection molded, the lower fixing plate 6 is driven by an injection machine (not shown),
As shown in FIG. 2, the upper core 20 and the lower core 21 are separated, and an eject member (not shown) is inserted into a hole 22 formed in the lower fixing plate 6 to move the pushing plate member 8 upward. .

Further, when the pushing plate member 8 is moved upward, the first pushing pin 33 and the second pushing pin 34 disposed on the upper portion of the pushing plate member 8 are interlocked with each other to move upward. The first push pin 33 moves the runner portion of the lens molded product 35 upward.

Further, the auxiliary pushing plate 27 is the second pushing plate 3
As it is moved upward by 4, the auxiliary pushing plate 2
The sleeve pin 25 arranged on the upper part of 7 is moved upward, and the injection-molded lens molded product 35 can be easily taken out from the injection mold.

Further, after the lens molded product 35 is taken out of the injection mold, the lower fixing plate 6 is driven by the injection machine (not shown) so that the upper core 20 and the lower core 21 are closed. The auxiliary fixing plate 26 and the auxiliary pin support plate 28 are smoothly returned to their original positions by the elastic force of the elastic means 43 arranged on the auxiliary safety pin 31.

As described above, according to the present embodiment, the lens molded product can be taken out from the injection mold with a uniform force, and furthermore, the surface of the lens molded product is free from defects such as scratches.

The present invention is not limited to the above-mentioned embodiment, but various modifications can be made if necessary.

[0026]

As described above, according to the device for taking out a lens molded product of the present invention, as the sleeve pin disposed at the lower part of the lens molded product is moved upward by the auxiliary pushing plate, the sleeve pin is removed. It is possible to take out the lens molded product from the injection mold with a uniform force, and it is possible to obtain a practical effect that there is no possibility that defects such as scratches are generated on the surface of the lens molded product.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of an injection mold provided with a take-out device of the present invention.

FIG. 2 is a cross-sectional view showing a state where an upper substrate and a lower substrate of the injection mold of No. 1 are separated.

[Explanation of symbols]

 1 Upper fixing plate 2 Upper substrate 3 Lower substrate 4 Support plate 5 Leg member 6 Lower fixing plate 7 Pin support member 8 Pushing plate member 9 Guide pin 10 Guide bush 20 Upper core 21 Lower core 22 Lower core pin 25 Sleeve pin 26 Auxiliary fixing Plate 27 Auxiliary Pushing Plate 28 Auxiliary Pin Supporting Plate 29 Auxiliary Guide Pin 30 Auxiliary Guide Pin Bushing 31 Auxiliary Safety Pin 33 First Pushing Pin 34 Second Pushing Pin 35 Lens Molded Product 43 Elastic Means

Claims (1)

[Scope of utility model registration request] 1. A pusher plate member (8) which is moved in the vertical direction by an eject member, and a pusher plate member (8) which is disposed above the pusher plate member (8) and which is interlocked with the pusher plate member (8) to move in the vertical direction. The moving first push pin (33) and second push pin (3
4), a pin support plate member (7) for supporting the first push pin (33) and the second push pin (34) so as to be fixed to the push plate member (8), and a lens. Molded product (3
5) In a device for taking out a lens molded product having a sleeve pin (25) disposed below the lower core (21)
An auxiliary fixing plate (26) fixed to the lower part of the auxiliary fixing plate (26) and arranged on the auxiliary fixing plate (26) so that the upper end of the second push pin (34) abuts at a predetermined position on the lower surface. ,
The sleeve pin (25) is disposed on the upper side of the second pin.
When the push pin (34) is moved upward, an auxiliary push plate (27) that is moved in association with the second push pin (34) and an upper part of the auxiliary push plate (27) are provided. The arranged auxiliary safety pin (31) and this auxiliary safety pin (31)
And the sleeve pin (25) is connected to the auxiliary pushing plate (2
7) Auxiliary pin support plate (28) fixed to the upper part of the auxiliary push plate (27) so as to be held without floating.
And an auxiliary guide pin (29) for guiding the auxiliary pin support plate (28) and the auxiliary push plate (27) so that they are moved upward without being leftwardly and downwardly moved. Then, the auxiliary pusher plate (27) and the auxiliary pin support plate (28), which are inserted into the auxiliary safety pin (31) and the lens molding (35) is taken out from the injection mold, are restored to their original positions. A device for taking out a lens molded article, characterized in that it is provided with elastic means (43).