CN201437270U - Injection mold capable of automatically cutting off gate - Google Patents
Injection mold capable of automatically cutting off gate Download PDFInfo
- Publication number
- CN201437270U CN201437270U CN2009201938610U CN200920193861U CN201437270U CN 201437270 U CN201437270 U CN 201437270U CN 2009201938610 U CN2009201938610 U CN 2009201938610U CN 200920193861 U CN200920193861 U CN 200920193861U CN 201437270 U CN201437270 U CN 201437270U
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- CN
- China
- Prior art keywords
- oil cylinder
- moving platen
- injection mold
- fixed head
- push pedal
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- Expired - Fee Related
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to an injection mold capable of automatically cutting off a gate, which is characterized in that the injection mold comprises a fixed mould fixing plate (1), a hot runner fixing plate (2), a fixed mold plate (3), a movable mold plate (4), two square irons (5), a movable mould fixing plate (6), an oil cylinder (9), an oil cylinder pushing plate (10) and a guiding component (11), wherein the oil cylinder (9) is provided with a piston rod (91) and oil circuit joints (92 and 93); two ends of the oil cylinder pushing plate (10) are connected with the oil cylinder piston rod (91) via screws (12); a travel spacing nail (13) and a flat ejector pin fixing plate (14) are arranged on the end surface of the oil cylinder pushing plate (10); and a flat ejector pin (15) is arranged on the flat ejector pin fixing plate (14). The utility model controls the vertical motion of the flat ejector pin at the gate through utilizing a hydraulic system so as to automatically cut off the gate, thereby eliminating the secondary processing procedure, and having the advantages of high molding efficiency and reduced labor intensity of workers.
Description
Technical field
The utility model relates to a kind of injection mold, but particularly relates to a kind of injection mold of automatic break gate.Belong to the injection mold technical field.
Background technology
Injection molding process comes down to plastics and dissolves, and flows, and solidifies the process of setting.Plastics are heated fusing in the injector barrel, under the extruding of injector plunger or screw rod, injected the running gate system of mould again, enter in the mold cavity through the cast gate of offering in advance, form shape of products, through pressure maintaining period and cooling procedure after a while, the mould that is fixed on the injector is opened, and injector push rod interlock mould ejecting structure ejects the curing molding goods.Generally speaking, solidifying fully of cast gate is to finish back pattern tool at pressure maintaining period cool off naturally and realize, because pressure maintaining period is to improving extrudate density, and reduction contraction and to overcome the product surface defective influential, process is essential.In the prior art, although it is more and more wider that the hot flow path technology is used in injection mould, on institute's forming plastic product to advance glue point also more and more not obvious, but, also often adopt no waste material TOP-TIP to advance the glue form in the mould design and combine forming plastic product with the side gate that waste material is arranged according to the requirement of difformity product appearance; In addition because hot flow path technology use cost height also adopts the cold runner side gates to advance the gum forming plasthetics in a large number separately in the actual production.There is following shortcoming in the prior art injection mold: plastic cement products can connect together with the sizing material in the runner, needs the secondary operations operation to make its separation, exist shaping efficiency low, increase labor strength.
The utility model content
The purpose of this utility model is to need the shortcoming that the secondary operations operation is separated it, shaping efficiency is low in order to overcome existing injection mold, and a kind of injection mold that can cut off side gate automatically is provided, and it has shaping efficiency height, characteristics that labour intensity is low.
The purpose of this utility model can reach by following technical solution:
But a kind of injection mold of automatic break gate, its design feature is: comprise cover half fixed head, hot flow path fixed head, solid plate, moving platen, be symmetricly set on the two blocks of square iron and the dynamic mould fixing plate of moving platen below, form runner and die cavity behind solid plate, the moving platen matched moulds; Also comprise be arranged on two blocks on the square iron oil cylinder, below the moving platen and keep the oil cylinder push pedal and the guidance set between moving platen and oil cylinder push pedal of a determining deviation with it; Each oil cylinder is provided with piston rod, two oil circuit joints that are connected with the hydraulic injection molding machine system, the two ends of oil cylinder push pedal are connected with oil cylinder piston bar on two blocks of square iron by screw respectively, oil cylinder push pedal end face is provided with at least one stroke limit nail and flat thimble fixed head, described flat thimble fixed head is provided with the flat thimble that passes moving platen, and the top of described flat thimble is under the cast gate between runner and the die cavity.
Finish the later stage in pressurize, the hydraulic injection molding machine system controls oily joint oil-feed, be fixed on the piston setting in motion of the book shape oil cylinder on the square iron, the push pedal of shoulder screw drive oil cylinder is done and is ejected motion, be fixed on the also and then motion of flat thimble in the oil cylinder push pedal, a small part plastic cement is squeezed in the goods, when the stroke limit nail joint contacts moving platen, this moment, flat thimble was just shut cast gate, finished automatic break gate.
The purpose of this utility model can also reach by following technical solution:
A kind of embodiment of the present utility model is: the distance between described stroke limit nail and the moving platen bottom surface is 2～3mm.
A kind of embodiment of the present utility model is: described guidance set is made of the through hole that is arranged on guide pillar, the guide pillar fixed head on the moving platen bottom surface and be opened on the oil cylinder push pedal end face; One end of described guide pillar is fixedlyed connected with the guide pillar fixed head, its other end interts in through hole.
A kind of embodiment of the present utility model is: described oil cylinder is a kind of book shape oil cylinder.
A kind of embodiment of the present utility model is: the next door of described flat thimble is provided with the dynamic model mold insert.
A kind of embodiment of the present utility model is: it is characterized in that: be provided with packing ring between described shoulder screw and the piston boit.
The beneficial effects of the utility model are:
The utility model is a kind ofly to cut valve gated mold automatically at what side gate or overlap joint advanced the glue form.The utility model utilizes conventional hot flow path technology, promptly utilize the air pressure and the hydraulic system of the control hot runner valve needle movement of injection machine outfit, selecting HYDRAULIC CONTROL SYSTEM to cut the flat thimble of cast gate moves up and down, automatic break gate, thereby cancelled the secondary operations operation, reached the purpose of shaping efficiency height, reduction labor strength.Have that the cylinder body size is little, compact conformation, beneficial effect that the mold integral volume is little.
Description of drawings
Fig. 1 is a main TV structure schematic diagram of the present utility model.
Fig. 2 is a side-looking structural representation of the present utility model.
Fig. 3 is the enlarged diagram of A among Fig. 2.
Fig. 4 is the stereogram of parts such as structural representation oil cylinder, oil cylinder push pedal, flat thimble.
The specific embodiment
Specific embodiment:
Fig. 1～Fig. 4 constitutes a specific embodiment of the present utility model.
With reference to Fig. 1～Fig. 4, present embodiment comprises cover half fixed head 1, hot flow path fixed head 2, solid plate 3, moving platen 4, be symmetricly set on the two blocks of square iron 5 and the dynamic mould fixing plate 6 of moving platen 4 belows, forms runner 7 and die cavity 8 behind solid plate 3, moving platen 4 matched moulds; Also comprise be arranged on two blocks on the square iron 5 oil cylinder 9, below the moving platen 4 and keep the oil cylinder push pedal 10 and the guidance set 11 between moving platen 4 and oil cylinder push pedal 10 of a determining deviation with it; Each oil cylinder 9 is provided with piston rod 91, two oil circuit joints that are connected with the hydraulic injection molding machine system 92,93, the two ends of oil cylinder push pedal 10 are connected with oil cylinder piston bar 91 on two blocks of square iron 5 by screw 12 respectively, oil cylinder push pedal 10 end faces are provided with at least one stroke limit nail 13 and flat thimble fixed head 14, described flat thimble fixed head 14 is provided with the flat thimble 15 that passes moving platen, and the top of described flat thimble 15 is under the cast gate between runner 7 and the die cavity 8.The flat thimble of plate, the top of described flat thimble is under the cast gate between runner and the die cavity.
In the present embodiment, the next door of described flat thimble 15 is provided with dynamic model mold insert 16.Distance between described stroke limit nail 13 and moving platen 4 bottom surfaces is 2～3mm.Described guidance set 11 is made of the through hole 11c that is arranged on guide pillar 11a, the guide pillar fixed head 11b on the moving platen bottom surface and be opened on the oil cylinder push pedal end face; The end of described guide pillar 11a is fixedlyed connected with guide pillar fixed head 11b, its other end interts in through hole 11c.Be provided with packing ring 17 between described shoulder screw and the piston boit.Described injection mold also comprises: eject post 18, thimble fixed head 19, liftout plate 20, cover half mold insert 21 etc.Other parts of described injection mold adopt the conventional structure of ordinary injection die.
Operation principle of the present utility model:
Finish the later stage in pressurize, the hydraulic injection molding machine system controls oily joint 93 oil-feeds, be fixed on the piston setting in motion of the book shape oil cylinder on the square iron, the push pedal of shoulder screw drive oil cylinder is done and is ejected motion, is fixed on the also and then motion of flat thimble in the oil cylinder push pedal, and a small part plastic cement is squeezed in the goods, general motion 2～3MM, when the stroke limit nail joint contacted moving platen, flat thimble was just shut cast gate, finishes automatic break gate; Die sinking subsequently, injection machine push rod promote to eject post, promote thimble fixed head and liftout plate by ejecting post again, thereby goods are ejected, injection machine push rod return, thimble fixed head and liftout plate also return under the return spring effect.Next molding cycle begins, injection machine matched moulds, injection beginning, the hydraulic injection molding machine system controls oily joint 92 oil-feeds, and the oil cylinder piston return drives oil cylinder push pedal and flat thimble return, etc. end to be injected, pressurize finishes, and enters automatic break gate process next time.
The above; it only is the preferable specific embodiment of the utility model; but the protection domain of utility model is not limited thereto; anyly be familiar with those skilled in the art in the scope that the utility model discloses; be equal to replacement or change according to the technical solution of the utility model and utility model design thereof, all belonged to protection domain of the present utility model.
Claims (6)
1. but the injection mold of an automatic break gate, it is characterized in that: comprise cover half fixed head (1), hot flow path fixed head (2), solid plate (3), moving platen (4), be symmetricly set on the two blocks of square iron (5) and the dynamic mould fixing plate (6) of moving platen (4) below, form runner (7) and die cavity (8) behind solid plate (3), moving platen (4) matched moulds; Also comprise the oil cylinder (9) that is arranged on two blocks of square iron (5), be positioned at moving platen (4) below and keep the oil cylinder push pedal (10) of a determining deviation with it and be positioned at moving platen (4) and oil cylinder push pedal (10) between guidance set (11); Each oil cylinder (9) is provided with piston rod (91), two oil circuit joints that are connected with the hydraulic injection molding machine system (92,93), the two ends of oil cylinder push pedal (10) are connected with oil cylinder piston bar (91) on two blocks of square iron (5) by screw (12) respectively, oil cylinder push pedal (10) end face is provided with stroke limit nail (13) and flat thimble fixed head (14), described flat thimble fixed head (14) is provided with the flat thimble (15) that passes moving platen, and the top of flat thimble (15) is positioned under the cast gate between runner (7) and the die cavity (8).
2. but the injection mold of a kind of automatic break gate according to claim 1 is characterized in that: the distance between described stroke limit nail (13) and moving platen (4) bottom surface is 2～3mm.
3. but the injection mold of a kind of automatic break gate according to claim 1 is characterized in that: described guidance set (11) is made of the through hole (11c) that is arranged on guide pillar (11a), the guide pillar fixed head (11b) on the moving platen bottom surface and be opened on the oil cylinder push pedal end face; One end of described guide pillar (11a) is fixedlyed connected with guide pillar fixed head (11b), its other end interts in through hole (11c).
4. but the injection mold of a kind of automatic break gate according to claim 1, it is characterized in that: described oil cylinder (9) is a kind of book shape oil cylinder.
5. but the injection mold of a kind of automatic break gate according to claim 1 is characterized in that: be provided with dynamic model mold insert (16) on the next door of described flat thimble (15).
6. but the injection mold of a kind of automatic break gate according to claim 1 is characterized in that: be provided with packing ring (17) between described screw (12) and piston boit (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201938610U CN201437270U (en) | 2009-09-01 | 2009-09-01 | Injection mold capable of automatically cutting off gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201938610U CN201437270U (en) | 2009-09-01 | 2009-09-01 | Injection mold capable of automatically cutting off gate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201437270U true CN201437270U (en) | 2010-04-14 |
Family
ID=42399251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201938610U Expired - Fee Related CN201437270U (en) | 2009-09-01 | 2009-09-01 | Injection mold capable of automatically cutting off gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201437270U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979235A (en) * | 2010-10-18 | 2011-02-23 | 昆山乙盛机械工业有限公司 | Male die oil cylinder thimble die internal cutting |
| CN102744839A (en) * | 2012-07-06 | 2012-10-24 | 珠海市英豪电子科技有限公司 | Cutting structure and injection molding method of water gap in die |
| CN104626476A (en) * | 2015-01-30 | 2015-05-20 | 河南工业职业技术学院 | Injection mould of automatically cutting side gate in mould |
| CN107775852A (en) * | 2016-08-26 | 2018-03-09 | 汉达精密电子(昆山)有限公司 | The hydraulic pressure ejecting structure of plastic mould |
| CN110978405A (en) * | 2019-12-20 | 2020-04-10 | 南通双晨新材料科技有限公司 | Be applied to ribbon injection moulding's mould structure |
-
2009
- 2009-09-01 CN CN2009201938610U patent/CN201437270U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979235A (en) * | 2010-10-18 | 2011-02-23 | 昆山乙盛机械工业有限公司 | Male die oil cylinder thimble die internal cutting |
| CN102744839A (en) * | 2012-07-06 | 2012-10-24 | 珠海市英豪电子科技有限公司 | Cutting structure and injection molding method of water gap in die |
| CN102744839B (en) * | 2012-07-06 | 2015-04-15 | 珠海市英豪电子科技有限公司 | Cutting structure and injection molding method of water gap in die |
| CN104626476A (en) * | 2015-01-30 | 2015-05-20 | 河南工业职业技术学院 | Injection mould of automatically cutting side gate in mould |
| CN104626476B (en) * | 2015-01-30 | 2016-09-07 | 河南工业职业技术学院 | The injection mold of side gate is automatically cut off in a kind of mould |
| CN107775852A (en) * | 2016-08-26 | 2018-03-09 | 汉达精密电子(昆山)有限公司 | The hydraulic pressure ejecting structure of plastic mould |
| CN110978405A (en) * | 2019-12-20 | 2020-04-10 | 南通双晨新材料科技有限公司 | Be applied to ribbon injection moulding's mould structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100414 Termination date: 20120901 |