CN201346828Y

CN201346828Y - Injection mold for small manufactured product

Info

Publication number: CN201346828Y
Application number: CNU2009201414954U
Authority: CN
Inventors: 朱薛金
Original assignee: Shengmei Precision Industrial Kunshan Co Ltd
Current assignee: Shengmei Precision Industrial Kunshan Co Ltd
Priority date: 2009-01-13
Filing date: 2009-01-13
Publication date: 2009-11-18
Anticipated expiration: 2019-01-13

Abstract

The utility model discloses an injection mold for a small manufactured product, which comprises a cavity insert and a core insert which are oppositely arranged, an oblique ejector block arranged at the side part of a die cavity on the core insert, an ejector plate arranged relative to the core insert in a sliding manner, an oblique ejector rod fixed on the ejector plate and connected with the oblique ejector block, an ejector pin provided with the bottom end capable of being inserted and pulled out of the ejector plate and connected with the ejector plate in the opposite moving direction through an elastic part, as well as a limiting mechanism which is arranged between the ejector pin and the core insert and is capable of limiting the ejector pin relative to the core insert when the ejection distance of the ejector plate relative to the core insert exceeds a first ejection position. When the die is ejected, firstly, the ejector pin limits the manufactured product forwards, backwards, leftwards and rightwards to prevent the manufactured product from being separated by the oblique ejector block and ensure that the manufactured product can be smoothly separated from the oblique ejector block; and secondly, the ejector pin is limited by the core insert, and the oblique ejector block is further ejected out through the oblique ejector rod, so that the manufactured product can be smoothly separated from the ejector pin and the oblique ejector block and easily taken out, moreover, the injection mold is applicable to the automatic production.

Description

Smallclothes goods injection mold

Technical field

The utility model relates to a kind of mould that is exclusively used in the injection mo(u)lding of smallclothes goods, and this mould has inclined pin structure, and specifically the utility model relates generally to the improvement of the ejecting mechanism of this mould.

Background technology

Injection mold with inclined pin structure is mainly used in the injection mo(u)lding of lateral surface with concaveconvex shape or medial surface (caulking groove, barb for example) goods.Some smallclothes goods, during the moulding demoulding afterwards, groove shape structure is easy and taper pin is bonding, cause goods not come off from taper pin automatically smoothly, this is not only bad for automated production, and is not detected when the goods that stick on the taper pin, and taper pin drops into next round when producing, goods can break master mold, cause greater loss.

Summary of the invention

Technical problem to be solved in the utility model is that goods can be bonded in deficiency on the taper pin when overcoming existing mold releasability, designs a kind of structure that can guarantee that goods and mould are thrown off smoothly.

For solving above technical problem, the utility model is taked following technical scheme: a kind of smallclothes goods injection mold, and it comprises:

Mother module core that is oppositely arranged and male model benevolence all offer die cavity on the joint portion of described mother module core and male model benevolence, and the sidepiece of the die cavity on the described male model benevolence is provided with slanted kicking block;

Ejector retainner plate with described male model benevolence can be slided relatively and is provided with is fixed on the angle ejector rod that is connected with described slanted kicking block on the described ejector retainner plate;

This mould also comprises thimble, die cavity when the mould matched moulds on the top of described thimble and above-mentioned male model benevolence bottom is inconsistent and protrude to this die is inner, the setting that the bottom of described thimble and described ejector retainner plate can plug is connected by elastic component on direction of relative movement between the two;

Described ejector retainner plate with respect to male model benevolence have distance of ejecting less first eject the position and eject distance bigger second eject the position;

Be provided with between described thimble and the described male model benevolence when the relative male model benevolence of ejector retainner plate eject distance surpass first can be when ejecting the position with the spacing position-limit mechanism of the relative male model benevolence of thimble.

Because the employing of technique scheme, the utility model has following advantage compared to existing technology: this mould is when depanning, at first, thimble to goods carry out spacing all around, prevent goods by the slanted kicking block band partially, guarantee that goods can separate with slanted kicking block smoothly; Subsequently, thimble is spacing by male model benevolence, and angle ejector rod further ejects slanted kicking block, makes goods to break away from, to be easy to take out with thimble and slanted kicking block smoothly, is applicable to automated production.

Description of drawings

Fig. 1 is the complete section figure that the utility model is positioned at the matched moulds state, and what the figure left side showed is front view, and what the figure right side showed is left view;

Fig. 2 is the complete section figure that the utility model is positioned at die opening state, and what the figure left side showed is front view, and what the figure right side showed is left view;

Fig. 3 is that the utility model is positioned at the first complete section figure that ejects the position, and what the figure left side showed is front view, and what the figure right side showed is left view;

Fig. 4 is that the utility model is positioned at the second complete section figure that ejects the position, and what the figure left side showed is front view, and what the figure right side showed is left view;

Wherein, 11, locating ring, 12, front shoe, 13, rear fixed plate, 14, left mould pin, 15, right mould pin, 16, ejector retainner plate, 17, eject limited block,

20, caster, 21, mother module core, 30, the male model plate, 31, male model benevolence,

40, thimble, 41, slanted kicking block, 42, angle ejector rod,

5, position-limit mechanism, 50, stage portion, 6, spring, 7, goods.

The specific embodiment

Referring to a kind of smallclothes goods injection mold shown in Figure 1, it comprises:

The caster that is oppositely arranged 20 and male model plate 30, be arranged on mother module core 21 on the described caster 20, be arranged on the male model benevolence 31 on the described male model plate 30, all offer die cavity on the joint portion of described mother module core 21 and male model benevolence 31, the sidepiece of the die cavity on the described male model benevolence 31 is symmetrically arranged with two slanted kicking blocks 41;

Ejector retainner plate 16 with described male model benevolence 31 can be slided relatively and is provided with is fixed on the angle ejector rod 42 that is connected with described slanted kicking block 41 on the described ejector retainner plate 16;

Be arranged on the thimble 40 of the die cavity bottom on the described male model benevolence 31, die cavity when the mould matched moulds on the top of described thimble 40 and the above-mentioned male model benevolence 31 bottom is inconsistent and protrude to this die is inner, the bottom of described thimble 40 and being connected that described ejector retainner plate 16 can plug, be arranged with spring 6 on the described thimble 40, and an end of this spring 6 is resisted against on the thimble 40, and the other end is resisted against on the ejector retainner plate 16;

Described ejector retainner plate 16 with respect to male model benevolence 31 have distance of ejecting less first eject position (referring to Fig. 3) and eject distance bigger second eject position (referring to Fig. 4);

Described thimble 40 be provided with when ejector retainner plate 16 relative male model benevolence 31 eject distance surpass first can the relative male model benevolence of thimble 40 31 is spacing when ejecting the position stage portion 50.

The motion process of this mould is:

Referring to Fig. 3, after caster 20 relative male model plate 30 die sinkings, ejector retainner plate 16 is jack-up upwards, promoting angle ejector rod 42 moves upward with thimble 40, because 40 pairs of goods 7 of thimble is spacing all around, two slanted kicking blocks 41 can be separated with goods 7 smoothly, and two slanted kicking blocks 41 make progress separately, to two lateral movements; Be resisted against on the male model benevolence 31 until stage portion 50, spacing to thimble 40, thimble 40 can not continue motion;

Referring to Fig. 4, when ejector retainner plate 16 further made progress jack-up again, thimble 40 was limited, and spring 6 is compressed, and thimble 40 relative ejector retainner plates 16 are in the insertion state; Angle ejector rod 42 continues to move upward, promote two slanted kicking blocks 41 continue upwards, to two lateral movements, goods 7 by slanted kicking block 41 upwards jack-up, be separated with thimble 40, and slanted kicking block 41 has broken away from goods 7 in the rapid the inside of previous step, thereby move to second when ejecting the position when ejector retainner plate 16, goods 7 break away from fully with thimble 40 and slanted kicking block 41, are easy to take off.

Referring to Fig. 1, when ejector retainner plate 16 is got back to the home position, under the effect of the restoring force of spring 6, thimble 40 relative ejector retainner plates 16 are in the state of extracting.

The utility model is claimed promptly to be this two mold mechanisms that the step ejects, goods are easy to separate, and the limit method between the connected mode of thimble 40 and ejector retainner plate 16 and thimble 40 and the male model benevolence 31 is not limited by embodiment.

Claims

1, a kind of smallclothes goods injection mold, it comprises:

Mother module core that is oppositely arranged (21) and male model benevolence (31) all offer die cavity on the joint portion of described mother module core (21) and male model benevolence (31), and the sidepiece of the die cavity on the described male model benevolence (31) is provided with slanted kicking block (41);

Ejector retainner plate (16) with described male model benevolence (31) can be slided relatively and is provided with is fixed on the angle ejector rod (42) that is connected with described slanted kicking block (41) on the described ejector retainner plate (16);

It is characterized in that:

This mould also comprises thimble (40), die cavity when the mould matched moulds on the top of described thimble (40) and the above-mentioned male model benevolence (31) bottom is inconsistent and protrude to this die is inner, the setting that the bottom of described thimble (40) and described ejector retainner plate (16) can plug is connected by elastic component on direction of relative movement between the two;

Described ejector retainner plate (16) with respect to male model benevolence (31) have distance of ejecting less first eject the position and eject distance bigger second eject the position;

Be provided with between described thimble (40) and the described male model benevolence (31) when the relative male model benevolence of ejector retainner plate (16) (31) eject distance surpass first can be when ejecting the position with thimble (40) the spacing position-limit mechanism (5) of male model benevolence (31) relatively.

2, smallclothes goods injection mold according to claim 1, it is characterized in that: described elastic component is for being set in the spring (6) on the described thimble (40), and an end of this spring (6) is resisted against on the thimble (40), and the other end is resisted against on the ejector retainner plate (16).

3, smallclothes goods injection mold according to claim 1, it is characterized in that: described position-limit mechanism (5) comprises the stage portion (50) that is arranged on the thimble (40), when ejector retainner plate (16) relatively male model benevolence (31) be in first when ejecting the position, described stage portion (50) leans with male model benevolence (31).