JP2738230B2 - Mold fixing mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fully automatic resin encapsulating apparatus, and more particularly, to a mechanism for attaching and detaching a mold.

[0002]

2. Description of the Related Art As shown in FIG. 2, a conventional mold fixing mechanism fixes a mold 11 to a mold guide 16 for sliding a mold (chase) 11 at the time of attachment and detachment, and a main mold 15. Collar 12, a metal mold pressing spring 14, and a fixing bolt 13. Next, the operation is as follows. First, at the time of attaching and detaching the mold 11, the fixing bolt 13 is removed to release the fixation with the main mold 15, and then the mold guide 16 is slid to exchange the mold 11. After the replacement, the removed fixing bolts 13 are set to complete the fixing.
In this mechanism, a fixing bolt 13 is used to mold the mold 11.
Instead of directly fixing the
And is fixed by the pressing force. This is for positioning the upper and lower chase by slightly floating when positioning with the lower die.

[0003]

In this conventional mold fixing mechanism, it is necessary to remove and mount all of the plurality of fixing bolts, which has a disadvantage that the workability at the time of changing the mold is adversely affected. .

[0004]

According to the present invention, there is provided a mold-fixing mechanism for transferring a mold including an upper mold and a lower mold to a transformer.
A semiconductor device that can be detachably mounted on a fa mold press
An apparatus for molding a mold, comprising:
A collar formed on two opposite sides of the side edge of
Fix the mold on the transfer mold press side
The collar is attached to a portion to be fitted and slidably fits the collar.
Of the mold block after insertion and positioning
Press the collar to the transfer mold press side
From the mold guide plate and the guide push-up ball
Pusher part set on the guide block
And the pusher by the pushing force using the deflection
Lever for pressing the part against the collar, and pressing this lever
With a stopper for holding and releasing the state
ing.

[0005]

Next, the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of the present invention, (a) is a front view,
(B) and (c) are side views taken along arrow A in (a), (b) showing a clamped state, and (c) showing an unclamped state, respectively.

In this embodiment, as shown in FIG.
Transfer mold 1 (chase)
It can be easily attached and detached to the main mold 5 of the mold press.
It is. The main mold 5 of the transfer mold press
The surface on which the mold 1 is mounted, that is, the fixed part on the press side
And the mold 1 has the transformer described above.
Mounting the mold 1 of the main mold 5 of the fa mold press
Perpendicular to the surface of the mold and at both ends in the longitudinal direction of the mold 1.
Two opposite sides are provided. Opposition of this mold 1
Each of the two sides has a brim 8 extending in the longitudinal direction.
And a guide for fitting the collar 8 slidably.
Block 9 to the main mold 5 on the transfer mold press side.
It is attached to the fixed part. In this guide block 9,
It has a pusher portion composed of a mold guide plate 6 and a guide push-up ball 2 set to penetrate so as to suppress the flange 8 of the mold 1 after being inserted and positioned, and has a handle portion 4a at one end to utilize bending. A mold clamping lever 4 that presses the pusher portion against the collar 8 by the applied lifting force;
A stopper including a clamp on / off button 3 and a coil spring 7 is provided so that the vertical stop position of the mold clamping lever 4 can be changed in order to hold and release the pressed state against the collar 8. I have.

That is, in the mechanism of the present embodiment, the guide block 9 is used to make the mold 1 easily detachable from the main mold 5.
The collar 8 is slidable on the sliding surface 10 of the mold. In the clamp state of the mold 1, the clamping force controlled by the outer circumference of the clamp on / off button 3 and utilizing the bending of the mold clamping lever 4 is applied by the guide push-up ball 2 and the mold guide plate 6. In addition to the configured pusher portion, the mold guide plate 6 is raised via the guide push-up ball 2, thereby clamping the mold 1 to the main mold 5. At the time of unclamping, the mold clamping lever 4 moves down to the step of the clamp on / off button 3, so that the mold guide plate 6 moves down to the unclamped state.

Next, as an operation method, first, a flange 8 provided in the mold 1 is fitted on a mold sliding surface 10 of a guide block 9 fixed to the main mold 5 and then slid backward. By doing so, the positioning of the mold 1 with respect to the main mold 5 is completed. The removal can be performed by pulling out the mold 1 similarly.
To change from the clamped state to the unclamped state, the grip portion 4a of the mold clamping lever 4 is slightly lifted upward, the clamp on / off button 3 is pushed in, and the mold clamping lever 4 is clamped on / off button. By descending until it hits the stepped portion of No. 3, an unclamped state is set. Also, in order to change from the unclamped state to the clamped state, the mold clamping lever 4 is raised upward,
The clamp-on / off button 3 moves to the right by the urging force of the coil spring 7, and the clamp-on / off button 3
Becomes a stopper, and becomes a clamped state.

In this embodiment, the deflection of the lever is used. However, a combination of a disc cam having a vertical stroke and a coil spring for providing a rotational force, a combination of a torsion bar and a rotary link for vertical movement, and the like are used. The same effect can be obtained.

[0010]

As described above, according to the present invention, a mold in a small space is provided by using a deflection of a lever as a clamping force and providing a stopper portion for instantaneously switching between clamp and unclamping. This has the effect of enabling one-touch clamping and unclamping of the mold.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention, wherein (a) is a front view,
(B) and (c) are side views along arrow A of (a),
(B) shows a clamped state, and (c) shows an unclamped state.

FIG. 2 is a side view showing a main part of an example of a conventional mold fixing mechanism.

[Explanation of symbols]

 1,11 Mold die (chase) 2 Guide push-up ball 3 Clamp on / off button 4 Die clamp lever 5,15 Main die 6 Die guide plate 7 Coil spring 12 Distance collar 13 Fixing bolt 14 Die press Spring 16 Mold Guide

Claims (1)

(57) [Claims] 1. A molding die comprising an upper die and a lower die.
A semiconductor device that is detachably mounted on a spa mold press
In an apparatus for molding a chair, the mold metal
A collar formed on two opposing sides of the side edge of the mold;
Fix the mold on the transfer mold press side
The collar is slidably fitted to the fixed part
Guide block and the mold after insertion and positioning
Of the collar on the transfer mold press side
Mold guide plate and guide push-up ball as much as possible
Pusher set on the guide block
Part and the pusher by the pushing force using the deflection.
Lever for pressing the head against the collar, and pressing the lever
And a stopper for holding and releasing the
A mold fixing mechanism characterized by the following features.