CN202137919U

CN202137919U - Secondary ejection mechanism of injection mould for insert

Info

Publication number: CN202137919U
Application number: CN201120156274U
Authority: CN
Inventors: 李雪丁; 邓志军; 顾士杰
Original assignee: HANGZHOU JOINSYS ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: Hangzhou Amphenol Jet Interconnect Technology Co Ltd
Priority date: 2011-05-13
Filing date: 2011-05-13
Publication date: 2012-02-08
Anticipated expiration: 2021-05-13

Abstract

The utility model relates to a secondary ejection mechanism of injection mould for insert, mainly comprising an ejector rod of forming machine platform, wherein said ejector rod of forming machine platform is on the front lower side of the secondary ejection lower plate; the upper side of the secondary ejection lower plate is closely connected with a secondary ejection upper plate; secondary ejection springs are clamped between the secondary ejection upper and lower plates and primary ejection upper and lower plates; a buoyant plate connected by an ejector rod is set on the secondary ejection lower plate; a mould core base plate is set below the buoyant plate and a buoyant cover plate is closely connected to the upper side of the buoyant plate; positioning needles are set on the mould core base plate, and one side of the buoyant plate and one side of the buoyant cover plate are all provided with demising holes; the injection moulded product of the insert is normally fixed between the buoyant plate and the buoyant cover plate by the positioning needles. The beneficial effects of the utility model are as follows: the utility model has a simple structure and good stability, and can save mould space, and during the process that the product is being ejected and needs horizontal movement to cooperate with the automatic production, scratching can not occur to the product easily and ejector pin can not be broken easily.

Description

A kind of inserts injection mold secondary ejecting mechanism

Technical field

The utility model relates to the injection mold field, mainly is a kind of inserts injection mold secondary ejecting mechanism that is applicable to automatic inserts injection mold.

Background technology

Along with the extensive use of inserts injection mold, the pattern drawback that inserts is put in its original manual work is also more and more outstanding, occurs then in the industry being applicable to that automation puts the mould structure of inserts; And the mould ejection system is the key that realizes automation, in colleague's technology, after injection mold ejects the inserts product; Thimble in its inserts product and the ejecting structure also keeps in touch; Then, when product is done horizontal shift along with strip, tend to occur the problem that product is scratched or thimble is fractureed; The qualification rate of product is reduced greatly, also increase cost to mold repair.

Summary of the invention

The purpose of the utility model is to overcome the deficiency that prior art exists, and a kind of inserts injection mold secondary ejecting mechanism that makes product after the inserts injection moulding exceed the thimble face is provided.

The purpose of the utility model is accomplished through following technical scheme, and it mainly comprises moulding board push rod, and described moulding board push rod is positioned at the positive downside that secondary ejects lower plate, this secondary eject lower plate above closely be connected with secondary and eject upper plate; Eject upper and lower plate and once eject at described secondary and accompany the secondary ejector spring between upper and lower plate; , this secondary has one above ejecting lower plate through the continuous buoyant plate of push rod; Below the buoyant plate, be provided with the die backing plate; Above the buoyant plate, closely be connected with the buoyant cover plate, be provided with pilot pin in a side of this buoyant plate and buoyant cover plate, between this buoyant plate and buoyant cover plate through pilot pin location inserts injecting products; This pilot pin is fixed on the described die backing plate, and buoyant plate and buoyant cover plate can move up and down;

As preferably, described once ejecting is fixed with thimble on the lower plate, and the head of this thimble withstands the inserts injecting products;

As preferably, described ejecting is provided with a push rod in the back-moving spring, and the bottom of this push rod is fixed in secondary and is ejected in the lower plate, and the top of this push rod is fixed in the buoyant plate;

As preferably, described upper and lower plates and the secondary of once ejecting ejects upper and lower plates and accompanies between the two and eject back-moving spring, and the bottom that ejects back-moving spring is positioned at secondary and ejects the upper plate top; Described once eject to be fixed with on the upper plate once eject limited block, and this once ejects limited block and is positioned at described die backing plate and once ejects between upper plate;

Be provided with pilot pin above the die backing plate, and a side of buoyant plate and buoyant cover plate all is provided with the resigning hole of pilot pin, the inserts injecting products is fixed between buoyant plate and the buoyant cover plate through pilot pin usually; After the product injection moulding is accomplished; The inserts injecting products can promptly move upward with buoyant plate and buoyant cover plate, when moving upward certain distance along with once and secondary ejecting mechanism; This moment is because once eject the effect that limited block of top; One time ejection system stops to eject, and the inserts injecting products also can follow the secondary ejection system to continue upwards to eject (compressing once simultaneously and the spring between the secondary) but buoyant plate and buoyant cover plate are ined succession, at this moment; Just separate product with thimble; When secondary eject reach preset stroke after, the product strip is then by the horizontal direction pulling, this process just realize secondary eject and avoid product by thimble scratch maybe.

The effect that the utility model is useful: the utility model belongs to a kind of improvement to prior art; It has simple in structure; Save die space, the advantage that good stability, product are not easy to scratch, thimble fractures in being ejected and need move horizontally the process that cooperates automated production.

Description of drawings

Fig. 1 be the utility model eject the pre-structure sketch map.

Fig. 2 is an ejecting structure sketch map of the utility model.

Fig. 3 is the secondary ejecting structure sketch map of the utility model.

Label in the accompanying drawing is respectively: 1, inserts injecting products; 2, pilot pin; 3, buoyant cover plate; 4, buoyant plate; 5, push rod; 6, thimble; 7, die backing plate; 8, once eject limited block; 9, eject back-moving spring; 10, once eject upper plate; 11, once eject lower plate; 12, secondary ejector spring; 13, secondary ejects upper plate; 14, secondary ejects lower plate; 15, moulding board push rod.

The specific embodiment

To combine accompanying drawing that the utility model is done detailed introduction below: shown in accompanying drawing 1; The utility model mainly comprises moulding board push rod 15; Described moulding board push rod 15 is positioned at the positive downside that secondary ejects lower plate 14, this secondary eject lower plate 14 above closely be connected with secondary and eject upper plate 13; Eject upper and lower plate and once eject at described secondary and accompany secondary ejector spring 12 between upper and lower plate; Above this secondary ejects lower plate 14, have one to pass through the buoyant plate 4 that push rod 5 links to each other, below the buoyant plate, be provided with die backing plate 7, above buoyant plate 4, closely be connected with buoyant cover plate 3; Side at this buoyant plate and buoyant cover plate is provided with pilot pin, and through pilot pin location inserts injecting products 1, this pilot pin 2 is fixed on the described die backing plate 7 between this buoyant plate and buoyant cover plate, and buoyant plate 4 and buoyant cover plate 3 can move up and down; As preferably, described once ejecting is fixed with thimble 6 on the lower plate 11, and the head of this thimble 6 withstands inserts injecting products 1.

As preferably, described ejecting is provided with a push rod 5 in the back-moving spring 9, and the bottom of this push rod 5 is fixed in secondary and is ejected in the lower plate 14, and the top of this push rod 5 is fixed in the buoyant plate 4.

As preferably, described upper and lower plates and the secondary of once ejecting ejects upper and lower plates and accompanies secondary ejector spring 12 between the two, and the bottom of secondary ejector spring 12 is positioned at secondary and ejects upper plate 13 tops.

Once ejecting upper and lower plate and secondary ejects to accompany between upper and lower plate three and ejects back-moving spring 9; The bottom that ejects back-moving spring 9 is positioned at secondary and ejects upper plate 13 tops; Described once eject to be fixed with on the upper plate 10 once eject limited block 8, and this once ejects limited block 8 and is positioned at described die backing plate 7 and once ejects 10 of upper plates.

Be provided with pilot pin 2 above the die backing plate 7, and a side of buoyant plate 4 and buoyant cover plate 3 all is provided with the resigning hole of pilot pin, inserts injecting products 1 is fixed between buoyant plate 4 and the buoyant cover plate 3 through pilot pin 2 usually.

The operation principle of the utility model is: moulding board push rod 15 upwards ejects; Promote whole ejection system buoyant cover plate 3, buoyant plate 4, push rod 5, thimble 6, once eject limited block 8, once eject upper plate 10, once eject that lower plate 11, secondary ejector spring 12, secondary eject upper plate 13, secondary ejects lower plate 14 and inserts injecting products 1 moves up; Compression ejects back-moving spring 9, ejects that product breaks away from die cavity (shown in accompanying drawing 2) behind the certain distance; Eject limited block 8 contact die backing plates 7 this moment and stop to move, once eject end; Moulding board push rod 15 continues up to eject, and secondary ejection system buoyant cover plate 3, buoyant plate 4, push rod 5, secondary eject upper plate 13, secondary ejects lower plate 14 and inserts injecting products 1 also and then moves up, and compresses secondary ejector spring 12 this moment; When inserts injecting products 1 and (shown in accompanying drawing 3) after thimble 6 separates certain distance; Moulding board push rod 15 stop motions this moment keep secondary is ejected the support that upper plate 13, secondary eject lower plate 14, and sending and receiving material machine automatically stops after molded product strip moved preset length; Moulding board push rod 15 is return downwards, whole ejection system return; Inserts injecting products 1 embeds in the mould under the effect of buoyant cover plate 3 and buoyant plate 4 automatically, and the board matched moulds carries out injection moulding next time.

The utility model is not limited to above-mentioned embodiment; No matter on its shape or material formation, do any variation; The structural design that every employing the utility model is provided all is a kind of distortion of the utility model, all should think within the utility model protection domain.

Claims

1. inserts injection mold secondary ejecting mechanism, it is characterized in that: described moulding board push rod (15) is positioned at the positive downside that secondary ejects lower plate (14), closely is connected with secondary in the top that this secondary ejects lower plate (14) and ejects upper plate (13); Eject upper and lower plate and once eject at described secondary and accompany secondary ejector spring (12) between upper and lower plate; Eject the upper and lower plate buoyant plate (4) of ining succession mutually with secondary, be provided with die backing plate (7), closely be connected with buoyant cover plate (3) in the top of buoyant plate (4) in buoyant plate (4) below; Side at this buoyant plate (4) and buoyant cover plate (3) is provided with pilot pin (2); Locate inserts injecting products (1) through pilot pin (2) between this buoyant plate (4) and buoyant cover plate (3); This pilot pin (2) is fixed on the described die backing plate (7), and buoyant plate (4) and buoyant cover plate (3) can move up and down.

2. inserts injection mold secondary ejecting mechanism according to claim 1; It is characterized in that: once eject upper and lower plate and secondary and eject to accompany between upper and lower plate three and eject back-moving spring (9), the bottom that ejects back-moving spring (9) is positioned at secondary and ejects upper plate (13) top; Described once eject to be fixed with on the upper plate (10) once eject limited block (8), and this once ejects limited block (8) and is positioned at described die backing plate (7) and once ejects between upper plate (10).

3. inserts injection mold secondary ejecting mechanism according to claim 2; It is characterized in that: described ejecting is provided with a push rod (5) in the back-moving spring (9); The bottom of this push rod (5) is fixed in secondary and is ejected in the lower plate (14), and the top of this push rod (5) is fixed in the buoyant plate (4).

4. inserts injection mold secondary ejecting mechanism according to claim 2 is characterized in that: described once ejecting is fixed with thimble (6) on the lower plate (11), the head of this thimble (6) withstands inserts injecting products (1).