CN203460424U

CN203460424U - Flat plate forming mold

Info

Publication number: CN203460424U
Application number: CN201320522115.8U
Authority: CN
Inventors: 谭仕刚; 王燕霞
Original assignee: TIANSHUI HUATIAN INTEGRATED CIRCUIT PACKAGE MATERIAL CO Ltd
Current assignee: TIANSHUI HUATIAN INTEGRATED CIRCUIT PACKAGE MATERIAL CO Ltd
Priority date: 2013-08-26
Filing date: 2013-08-26
Publication date: 2014-03-05
Anticipated expiration: 2023-08-26

Abstract

The utility model aims to provide a flat plate forming mold so as to solve the problem of incomplete forming of a carrier tape caused by insufficient time of gas pressure maintaining in the prior art. The flat plate forming mold comprises a forming upper mold and a forming lower mold; an air inlet passage is arranged on the forming upper mold; an air cavity is formed below the air inlet passage; a cavity is formed in the forming lower mold and is in fit with the air cavity; and an air inlet hole is formed in the middle part of the air inlet passage. According to the flat plate forming mold, the unilateral air inlet from the air inlet hole is turned into bidirectional air inlet from the middle holes, thus the air inlet time is shortened; as the airflow inlet time is short, the pressure maintaining time is lengthened relatively under the condition that the mold assembly time is invariable; and the forming quality of the carrier tape is guaranteed and the production efficiency of a product is improved so that the production of the carrier tape is more stable.

Description

A kind of flat-plate molded mould

Technical field

The utility model relates to mould applications, is specifically related to the flat-plate molded mould of a kind of carrier band.

Background technology

Carrier band flat plate mold is widely used in the IC of mounting technology, the production of the electronic component of discrete device class packing carrier band, and flat-plate molded mould is a very important unit in carrier band flat plate mold, affects quality and the production efficiency of carrier band.

To be widely used at present the purl machine mould that carrier band is produced as shown in Figure 1, compressed air enters each air cavity of shaping upper by the air admission hole on right side along air intake duct, rely on compressed-air actuated pressure that plastic sheet is carried out to blowing moulding: plastic sheet is close to each die cavity in moulding counterdie under compressed air pressure effect, the dwell time was 0.5 second.

The air admission hole design of current this flat-plate molded mould, time by air intake duct is relatively long, especially in the unsettled situation of air pressure, because the dwell time is short, the gas inflated time is short, easily produces the not product of complete moulding, as shown in Figure 1 from 1 die cavity of the 8th die cavity to the, the squareness of moulding reduces successively, and last die cavity easy-formation is bad, and size does not reach technical drawing requirement.

Utility model content

The purpose of this utility model is to provide a kind of flat-plate molded mould, to solve in prior art because gas dwell time deficiency causes the incomplete problem of carrier band moulding.

For this reason, the utility model adopts following technical scheme: a kind of flat-plate molded mould, comprises shaping upper and moulding counterdie, shaping upper is provided with air intake duct, and air intake duct below is provided with air cavity, and moulding counterdie is provided with die cavity, die cavity and air cavity are suitable, and the middle part of described air intake duct is provided with air admission hole.

The beneficial effects of the utility model are: by the air admission hole of flat-plate molded mould perforate bidirection air intake in the middle of the monolateral air inlet of side becomes, shortened inlet period, the in the situation that of certain in the matched moulds time, because the time that air-flow enters is faster, dwell time is relatively elongated, carrier band Forming Quality is guaranteed, and has improved the production efficiency of product, carrier band is produced more stable.

Accompanying drawing explanation

Fig. 1 is a kind of flat-plate molded mould structure schematic diagram of prior art;

Fig. 2 is the utility model structural representation.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in further details.

As shown in Figure 2, a kind of flat-plate molded mould, comprise shaping upper 1 and moulding counterdie 2, shaping upper is provided with air intake duct 3, air intake duct 3 belows are provided with a plurality of air cavitys 5, and described air cavity 5 communicates with air intake duct 3, and described moulding counterdie 2 is provided with a plurality of die cavities 6, described die cavity 6 is suitable with air cavity 5, and the middle part of air intake duct 3 is provided with air admission hole 4.

Plastic sheet 7 through the local plasticizing of pre-hot-die, mode by drawstring enters mould, shaping upper 1 moves downward under the effect of cylinder push rod, moulding counterdie 2 moves upward under the effect of cylinder push rod, after drawstring completes, plastic sheet 7 rests between shaping upper 1 and moulding counterdie 2, when shaping upper 1 and moulding counterdie 2 move to closure, under the effect of pressure, contact with plastic sheet 7, form an airtight inner space, compressed air 8 enters each air cavity 5 of shaping upper 1 by air intake duct 3 along left and right both direction by middle air admission hole 4, rely on the pressure of compressed air 8 that plastic sheet 7 is carried out to blowing moulding, plastic sheet 7 is close to each die cavity 6 of moulding counterdie 2 under compressed air 8 pressure-actings, shortening due to air intake duct 3, the matched moulds time is can complete moulding 0.3 second, shaping upper 1 and moulding counterdie 2 move along contrary direction, the moulding section demoulding, carry out moulding next time.

Because the matched moulds time is by being reduced to for 0.3 second 0.5 second, speed of production has improved 20%, stop the quality problems such as the moulding that causes greatly due to the air pressure amplitude of oscillation is not upright simultaneously, the in the situation that of certain in the matched moulds time, because the time that air-flow enters is faster, extended the dwell time, carrier band Forming Quality is guaranteed, improved the production efficiency of product, carrier band has been produced more stable.

Claims

1. a flat-plate molded mould, comprise shaping upper (1) and moulding counterdie (2), shaping upper (1) is provided with air intake duct (3), air intake duct (3) below is provided with air cavity (5), moulding counterdie (2) is provided with die cavity (6), die cavity (6) is suitable with air cavity (5), it is characterized in that: the middle part of described air intake duct (3) is provided with air admission hole (4).