JPH0360826A - Hoop forming system - Google Patents

Abstract

PURPOSE:To reduce the arrangement of the multiple working of hoop material by setting the guide holes for transferring at the hoop material. CONSTITUTION:The constitution of the system is made to provide holes for transferring of the hoop material at the normalized pitch and in normalized hole diameter at the hoop material (Pressed product) and to feed the hoop insert into the die and to transfer the product to the outside of die by hanging with sprocket. Therefore, the automatic forming system of hoop material is constructed and the productivity is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention involves drilling guide holes for hoop material transfer in a hoop material (pressed product) at a standardized pitch and hole diameter, hooking the hoop insert onto a sprocket, and inserting the hoop insert into the mold. It is also a continuous automatic molding system for complex processing that transfers molded products to the outside of the mold.

The drive source for hoop material transfer uses a servo motor with a built-in encoder, and since the guide hole pitch and diameter are standardized, it is programmed so that one-touch stroke settings can be made manually using the numeric keypad during initial teaching.

In addition, in order to synchronize with the mold ejector operation, the mold ejector plate and the seesaw cam for adjusting the hoop material transfer height are used to further raise only the device to prevent the hoop material from getting caught in the mold ejector bin. do.

With the above content, it is possible to shorten the time that conventionally required about 3 hours for mold setting and adjustment to about 10 minutes.

<Conventional technology> See Figure 4 In the conventional system, the hoop material is held in place with clamps.

This is a system that uses an air cylinder to transfer.

<Problem to be Solved by the Invention> In the conventional system, when hoop materials are transferred in multiple rows, the clamping area becomes large, making it difficult to clamp uniformly and causing errors in the transfer pitch in each row.

If a multi-row independent clamping system is adopted, there will be problems with the equipment layout, the cost of the equipment will increase, and time will be required for adjustment work, making it unsuitable for high-mix, small-lot production.

Furthermore, since the mold and the hoop device are independent, it is difficult to maintain parallelism between the mold and the hoop device, resulting in an error in the transfer pitch of each hoop material. Furthermore, it also takes time to adjust the parallelism here.

For these reasons, single-row multi-cavity molds are currently the mainstream.

The system of the present invention is a system for realizing a high cycle with the same number of molds as the current one in a multi-row mold with a small number of molds in each row, and is intended to significantly shorten the setup time.

<Effects of the invention> (1) Standardization of hoop materials shortens setup time when changing one model. (When changing the model, the adjustment work is completed before the mold is set in the molding machine, and the mold installation can be carried out at the rear.) (2> Multi-row, each row takes out a small number of pieces, so the transfer time is reduced. It is possible to shorten the cycle time and achieve high cycle times.

(3) The pitch between cavities is widened, making it easier to use hot runners.
The system can be easily adopted, each cavity can be filled with the same amount, the cooling time can be shortened to achieve high cycle times, and material costs can be reduced.

(4) Since the transfer stroke is short, the hoop material can be accurately fed into the mold. (In the conventional system, the transfer stroke is long and transfer errors occur due to cumulative pitch error of the hoop material and thermal expansion of the mold. 191. Prevents damage to the mold.) (5) The hoop device is raised and lowered by the mold ejector. Since it is connected to a plate and operated by a seesaw cam, it is possible to reduce the cost of the device.

(Conventional systems use hydraulic pressure or pneumatic pressure as the drive source, and are operated by cylinders, etc.) (6) The number of signal exchange points with the molding machine ψ hoop device can be significantly reduced, and the hardware is not compromised. Simplification in control system,
The cost benefits justify it.

The above items are the main effects.

[Brief explanation of drawings]

(1) Figure 1 Shape of hoop material (2) Figure 2 Newly developed hoop material transfer system (3)
) Figure 3 Operation of hoop transfer device Q mold ejector (
4) [g4 Conventional system

Claims (3)

[Claims] (1) Provide a guide hole for hoop transfer in the hoop material (pressed product). (Guide hole for the purpose of hoop material transfer.) <The guide hole pitch is standardized as a fixed pitch, and one product pitch is determined by that pitch. The guide hole diameter will also be standardized. >...
...See Figure 1 (2) Hook it on the guide hole in (1) with a sprocket, rotate it, and transfer it. (The drive source is a servo motor)...See Figure 2 <The drive source uses a servo motor with a built-in encoder, and the guide hole pitch is standardized, so during initial teaching, the transfer stroke can be set with one touch by inputting on the numeric keypad. program to do so. 〉 (3) Seesaw cam for adjusting the hoop material transfer height in synchronization with the mold ejector operation (the mold ejector plate and the hoop material transfer device are connected, and the device is further raised by the seesaw cam)...
...See Figure 3.