CN204725774U

CN204725774U - Flannelette encapsulation die structure-improved

Info

Publication number: CN204725774U
Application number: CN201520342740.3U
Authority: CN
Inventors: 吕清海
Original assignee: DONGGUAN JINGFENG PLASTIC PRODUCTS CO LTD
Current assignee: DONGGUAN JINGFENG PLASTIC PRODUCTS CO LTD
Priority date: 2015-05-25
Filing date: 2015-05-25
Publication date: 2015-10-28
Anticipated expiration: 2025-05-25

Abstract

The utility model discloses a kind of flannelette encapsulation die structure-improved, comprise front mould and rear mold, described front mould and rear mold matched moulds form die cavity, described die cavity comprises accommodating cavity and injecting cavity, flannelette is placed in described accommodating cavity, and described accommodating cavity forms depression near the side of the described rear mold of mold injects mouth, and the described front mould place of corresponding described depression protrudes out and forms pillow position, after matched moulds, described pillow position is by padded for described flannelette.The utility model flannelette encapsulation die structure-improved can prevent when injection moulding because injection pressure causes flannelette arbitrarily to swing, and effectively improves product yield.

Description

Flannelette encapsulation die structure-improved

Technical field

The utility model relates to a kind of injection mold, particularly relates to one and prevents when injection moulding because injection pressure causes flannelette arbitrarily to swing, improve the flannelette encapsulation die structure-improved of product yield.

Background technology

In some cleaning equipments, usually can use a kind of flannelette encapsulate of bar shaped, this flannelette encapsulate is by implanting in mold cavity by flannelette, then carries out injection mo(u)lding and makes.As shown in Figures 1 and 2, the structure of flannelette encapsulate 200 is illustrated in figure, this bag flannelette 201 and plastic cement 202 two parts, product requires that flannelette 201 exposed parts width is 4-5mm man-hour adding, by encapsulate part and A face exposed, B face by whole encapsulate, and when the edge in exposed one side and A face by encapsulate more than 20mm, then defective.

The moulding process of this product is in die cavity, implant soft flannelette, this differs from die cavity completely implants handware and IMD (decoration technique inside mold) moulding process, maximum difficult forming is that the flannelette in die cavity only has part to be fixed, need the part of encapsulate completely unsettled, but, overhanging portion flannelette can fluctuate up and down along with injection pressure time shaping or swing, therefore, the product produced has the diversity of bad problem and the randomness of same poor prognostic cause position, the edge part in such as A face by encapsulate more than 20mm, thus the fraction defective of product is improved greatly.

Utility model content

The purpose of this utility model is that providing a kind of prevents because injection pressure causes flannelette arbitrarily to swing when injection moulding, improve the flannelette encapsulation die structure-improved of product yield.

To achieve these goals, the flannelette encapsulation die structure-improved that the utility model provides comprises front mould and rear mold, described front mould and rear mold matched moulds form die cavity, described die cavity comprises accommodating cavity and injecting cavity, flannelette is placed in described accommodating cavity, and described accommodating cavity forms depression near the side of the described rear mold of mold injects mouth, and the described front mould place of corresponding described depression protrudes out and forms pillow position, after matched moulds, described pillow position is by padded for described flannelette.

Compared with prior art, because the utility model arranges depression by mould in the rear, described front mould arranges pillow position, padded by described pillow position after making described flannelette be positioned over described accommodating cavity, and under the clamping action of described pillow position and described depression, described flannelette is located, thus make described flannelette can bear larger injection pressure when injection, prevent because injection pressure causes flannelette arbitrarily to fluctuate, after injection moulding, the encapsulate part at flannelette edge meets product requirement, effectively improves the yields of product; By the above-mentioned improvement to mould structure, the fraction defective of product can be dropped to 3% from 30% by the utility model, greatly enhances productivity, reduces production cost.

Preferably, the height of described pillow position is 0.4mm.

Accompanying drawing explanation

Fig. 1 is the structural representation of flannelette encapsulate.

Fig. 2 is the partial structurtes schematic diagram of flannelette encapsulate.

Fig. 3 is the schematic diagram of the rear mold of the utility model flannelette encapsulation die.

Fig. 4 is the partial schematic diagram of the front mould of the utility model flannelette encapsulation die.

Fig. 5 is the top view of the rear mold of the utility model flannelette encapsulation die.

Fig. 6 is the enlarged drawing of C part in Fig. 5.

Detailed description of the invention

For describing technology contents of the present utility model, structural feature, the effect that realizes in detail, accompanying drawing is coordinated to be explained in detail below in conjunction with embodiment.

As shown in figures 3 to 6, the utility model flannelette 201 encapsulation die structure-improved comprises front mould 1 and rear mold 2, described front mould 1 and the 2-in-1 mould of rear mold form two die cavities 3, two die cavities 3 are symmetrical set respectively, arrange runner 4 between described die cavity 3, runner 4 is communicated in two described die cavities 3 by injection port 5 respectively; Described die cavity 3 comprises accommodating cavity and injecting cavity, flannelette 201 is placed in described accommodating cavity, described accommodating cavity forms depression 21 near the side of the described rear mold 2 of mold injects mouth 5, described front mould 1 place of corresponding described depression 21 protrudes out and forms pillow position 11, after matched moulds, described pillow position 11 is by padded for described flannelette 201, the height of described pillow position 11 is 0.4mm, thus coordinate with described depression 21 described flannelette 201 is clamped, by the part of described flannelette 201 by padded 0.4mm, flannelette 201 is by after padded 0.4mm, and its encapsulation is best.

During injection, melt glue from runner 4 by injection port 5, then enter into described die cavity 3 from the bottom of flannelette 201, when just starting to enter described die cavity 3, due to flannelette 201 near the part of injection port 5 by padded namely by clamping position, therefore, flannelette 201 stability is herein higher, and upper and lower fluctuation is less likely to occur, therefore, melt glue to continue to enter die cavity 3 from the bottom of flannelette 201, thus make the side of flannelette 201 and B mask have encapsulate, A face does not then have encapsulate and exposed.

Compared with prior art, because the utility model arranges depression 21 by mould 2 in the rear, described front mould 1 arranges pillow position 11, padded by described pillow position 11 after making described flannelette 201 be positioned over described accommodating cavity, and under described pillow position 11 with the clamping action of described depression 21, described flannelette 201 is located, thus make described flannelette 201 can bear larger injection pressure when injection, prevent because injection pressure causes flannelette 201 arbitrarily to fluctuate, after injection moulding, the encapsulate part at flannelette 201 edge meets product requirement, effectively improves the yields of product; By the above-mentioned improvement to mould structure, the fraction defective of product can be dropped to 3% from 30% by the utility model, greatly enhances productivity, reduces production cost.

Above disclosedly be only preferred embodiments of the present utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.

Claims

1. a flannelette encapsulation die structure-improved, it is characterized in that: comprise front mould and rear mold, described front mould and rear mold matched moulds form die cavity, described die cavity comprises accommodating cavity and injecting cavity, flannelette is placed in described accommodating cavity, and described accommodating cavity forms depression near the side of the described rear mold of mold injects mouth, and the described front mould place of corresponding described depression protrudes out and forms pillow position, after matched moulds, described pillow position is by padded for described flannelette.

2. flannelette encapsulation die structure-improved as claimed in claim 1, is characterized in that: the height of described pillow position is 0.4mm.