CN205086307U - Cross groove thimble - Google Patents

Abstract

The utility model provides a cross groove thimble, its characterized in that includes: a thimble pole is for cylindric, a bellying, for circular, the bellying center has crosswise groove, is located the top of thimble pole, the recess bottom does promptly thimble peak of the staff portion. Cross groove thimble can control the injection molding and directly not drop after the drawing of patterns, must take out the injection molding through robotic arm, and level of mechanization is high, avoids the injection molding to receive fish tail, harm, improved product quality stability and production efficiency, promoted the economic benefits of company.

Description

A kind of cross groove thimble

Technical field

The utility model relates to the technical field of structures of mould, particularly relates to a kind of cross groove thimble.

Background technology

Thimble is the conventional accessory of the type cavity mould such as plastic cement, die casting, for goods shaping in ejection die.The kind of current thimble is a lot, there are dome pin, flat thimble, holder pin etc., but usually use dome pin to be ejected by shaping goods in the industrial production, there is following defect in the die ejector pin of this structure: the contact area of (1) existing dome pin thimble rod and installing hole inner surface is large, need to apply larger thrust moulding to be ejected, be not easy to the demoulding, unfavorable to industrial production; (2) after moulding is ejected by thrust, easily come off, moulding can collide, wear and tear in the process of coming off, and causes moulding fragmentation or moulding surface damage, affects the yield of product; (3) in industrial production in order to prevent coming off of moulding, taken out by mechanical arm after generally thimble can being raised 0.2mm, but this kind of mode needs product stop a moment when ejecting and can not act on too tight with mould, take out smoothly to facilitate manipulator, be applicable to mill run more, be difficult to control when running into the product that volume is comparatively large or grammes per square metre is larger, limitation is larger.

Therefore, need the structure improving die ejector pin, control the ejecting and come off of moulding, avoid the scuffing of moulding, impaired, enhance productivity.

Utility model content

For solving above-mentioned Problems existing, the purpose of this utility model is to provide a kind of cross groove thimble, described cross groove thimble can control moulding and directly not drop after demoulding, by mechanical arm, moulding must be taken out, mechanization degree is high, avoid moulding to be subject to scratching, damaging, improve stability and the production efficiency of product quality.

For achieving the above object, the technical solution of the utility model is:

A kind of cross groove thimble, comprising:

One thimble rod, for cylindric;

One lug boss, be circle, lug boss center has cruciform groove, and described boss is in the top of described thimble rod, and the bottom portion of groove of described lug boss is described thimble rod top.

Separately, the center of circle at described thimble rod top overlaps with the center of circle of described lug boss.

Separately have, the diameter of described lug boss is 2/3 of thimble rod top diameter.

Again, the height of described lug boss is 0.2mm.

Meanwhile, the material of described cross groove thimble is SKD61.

The beneficial effects of the utility model are:

1, the utility model is provided with the lug boss of cruciform groove at thimble rod top, when moulding is subject to after thrust is ejected, because moulding is engaged with thimble cross, Injection Molding Products can not directly drop, moulding is not easily damaged, improves the yield of product.

Even if 2, cruciform groove lug boss be arranged so that thimble relatively near Injection Molding Products, also will in the process ejected, product be damaged.

3, because product must use mechanical arm to take out, improve the mechanization degree of production, further increase quality stability and the production efficiency of product, saved the input of human resources, improved the economic benefit of company.

Accompanying drawing explanation

Fig. 1 is the utility model cross groove thimble front view structural representation.

Fig. 2 is the utility model cross groove thimble perspective view.

Fig. 3 is the product schematic diagram using the mold injection containing the cross groove thimble of the utility model to obtain.

In figure: 1 is thimble rod, and 2 is lug boss.

Detailed description of the invention

In order to make the purpose of this utility model, technical scheme and advantage clearly understand, further describe below in conjunction with drawings and Examples.

See Fig. 1 ~ Fig. 2, cross groove thimble described in the utility model, comprising:

One thimble rod 1, for cylindric;

One lug boss 2 is circle, and lug boss 2 center has cruciform groove, and described lug boss 2 is positioned at the top of described thimble rod 1, and the bottom portion of groove of described lug boss 2 is described thimble rod 1 top.

Separately, the center of circle at described thimble rod 1 top overlaps with the center of circle of described lug boss 2.

Separately have, the diameter of described lug boss 2 is 2/3 of thimble rod 1 top diameter.

Again, the height of described lug boss 2 is 0.2mm.

Meanwhile, the material of described cross groove thimble is SKD61.

In the present embodiment, the material selection SKD61 of described cross groove thimble, in a mold injection moulding complete and cooling forming after, thimble rod 1 acts on injecting products, injecting products is subject to thrust and is ejected, now due to the existence of lug boss 2, there is cross between injecting products with thimble and be engaged interaction, injecting products can not directly drop out from mould, and injecting products must use mechanical arm to take out, avoiding injecting products ejecting in the process of dropping is damaged, improve industrial mechanization degree and product yield, further increase quality stability and the production efficiency of product, save the input of human resources, improve the economic benefit of company.

Fig. 3 is the product using the mold injection containing the cross groove thimble of the utility model to obtain, and be a kind of upper cover for outdoor electrical product, the production process mechanization degree of this product is high, constant product quality, and product yield can reach 98%.

It should be noted that, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted.Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical scheme of utility model or equivalent replacement, and not departing from the scope of technical solutions of the utility model, it all should be encompassed in right of the present utility model.

Claims (5)

1. a cross groove thimble, is characterized in that, comprising:

One thimble rod, for cylindric;

One lug boss, be circle, lug boss center has cruciform groove, and described boss is in the top of described thimble rod, and the bottom portion of groove of described lug boss is described thimble rod top.

2. cross groove thimble according to claim 1, is characterized in that, the center of circle at described thimble rod top overlaps with the center of circle of described lug boss.

3. cross groove thimble according to claim 1, is characterized in that, the diameter of described lug boss is 2/3 of thimble rod top diameter.

4. cross groove thimble according to claim 1, is characterized in that, the height of described lug boss is 0.2mm.

5. cross groove thimble according to claim 1, is characterized in that, the material of described cross groove thimble is SKD61.