CN106827410B - Improve the deep cavity mould of injection efficiency - Google Patents

Improve the deep cavity mould of injection efficiency Download PDF

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Publication number
CN106827410B
CN106827410B CN201710282716.9A CN201710282716A CN106827410B CN 106827410 B CN106827410 B CN 106827410B CN 201710282716 A CN201710282716 A CN 201710282716A CN 106827410 B CN106827410 B CN 106827410B
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CN
China
Prior art keywords
oil cylinder
release agent
mould
piston rod
piston
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Application number
CN201710282716.9A
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Chinese (zh)
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CN106827410A (en
Inventor
唐应炳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Luzhou Shengke Mold Manufacturing Co Ltd
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Luzhou Shengke Mold Manufacturing Co Ltd
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Publication date
Application filed by Luzhou Shengke Mold Manufacturing Co Ltd filed Critical Luzhou Shengke Mold Manufacturing Co Ltd
Priority to CN201710282716.9A priority Critical patent/CN106827410B/en
Publication of CN106827410A publication Critical patent/CN106827410A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/2602Mould construction elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/56Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • B29C33/58Applying the releasing agents

Abstract

The invention discloses the deep cavity moulds for improving injection efficiency, including sequentially connected release agent memory and nozzle, and check valve, input pipe, oil cylinder and efferent duct are disposed between memory and nozzle, is provided with limit assembly on preceding mould;In the nozzle insertion rear mold on the nearby end face of mould;The oil cylinder is mounted on the side wall of rear mold, and the piston rod of oil cylinder is connect with limit assembly, and the limit assembly can limit the movement of piston rod;The input pipe and efferent duct are connected to the working chamber on oil cylinder close to cylinder bottom.When this not only ensure that each production, the dosage of release agent spraying is consistent, it is not influenced by worker's subjective factor, and the power of product forming machine is utilized to realize the function of realizing absorption, spraying release agent, reduce the energy consumption of spraying release agent, and the synchronism of spraying release agent and molding is realized, rejected product generates caused by avoiding spraying release agent from generating the time difference.

Description

Improve the deep cavity mould of injection efficiency
Technical field
The present invention relates to a kind of devices for spraying release agent, and in particular to improves the deep cavity mould of injection efficiency.
Background technique
Mold, in industrial production to be molded, be blow molded, squeeze out, die casting or the methods of forging and forming, smelting, punching press obtain The various moulds and tool of required product.In brief, mold is the tool for formed article, and this tool is by various parts It constitutes, different molds is made of different parts.It mainly realizes article by the change of physical state of the formed material The processing of shape.
In this kind of deep-small hole mold such as battery case, column packing box, depth of cavity reaches 210mm to 280mm, draw taper It is small, only 0.5 degree or so, while wall is thin, only 1.2mm to 1.5mm, and in order to keep product transparent, the material of product is adopted With PET plastic material.If easily generating plastic in depanning it is well known that the draw taper of plastic mould plastic is too small and drawing Wound generally requires under conditions of cannot change product structure and sprays suitable release agent when being molded production, to ensure plastic It smoothly demoulds, is unlikely to plastic is caused to pull bad.
And conventional spray paint release agent is hand spray, this spraying method not only low efficiency, and by worker's subjective impact, often When a part is molded, the demoulding dosage of spraying is different, causes release agent spraying excessive or release agent spraying not enough has The product pulled.
Summary of the invention
It is an object of that present invention to provide the deep cavity moulds for improving injection efficiency, solve hand spray release agent not only efficiency It is low, and by worker's subjective impact, when each part is molded, the demoulding dosage of spraying is different, and cause release agent spraying excessive, or Release agent spraying not enough leads to the problem of the product pulled.Injection mold mainly includes preceding mould, rear mold, driving device and unloads Expect device.
The present invention is achieved through the following technical solutions:
The deep cavity mould of injection efficiency, including sequentially connected release agent memory and nozzle are improved, in memory and spray It is disposed with check valve, input pipe, oil cylinder and efferent duct between mouth, is parallel on the side wall in die sinking direction and is arranged on preceding mould There is limit assembly;
The nozzle is embedded in the rear mold of deep cavity mould on the end face of the preceding mould of deep cavity mould;
The oil cylinder is mounted on the side wall for being parallel to die sinking direction in rear mold, and the axis of oil cylinder is parallel to die sinking direction, And one end on the piston rod of oil cylinder far from piston is connect with limit assembly, the limit assembly can limit piston rod along oil cylinder The movement of axis, driving device drive cylinder is close or far from piston rod at this time;
The input pipe and efferent duct are connected to the working chamber on oil cylinder close to cylinder bottom;When die sinking, cylinder bottom far from piston, Release agent enters the working chamber on oil cylinder close to cylinder bottom from memory via check valve and input pipe;When molding, cylinder bottom is close to living Plug, before the release agent in oil cylinder being sent into nozzle and be sprayed to via efferent duct in the type chamber of mould.
When die sinking, for rear mold far from preceding mould, the limit assembly limits the movement of one end on piston rod far from piston, living Stopper rod is motionless, and the piston being attached thereto is also fixed, and driving device drive cylinder is mobile, makes oil cylinder far from piston rod, in turn Space between piston and oil cylinder increases, and generates negative pressure, and oil cylinder sucks release agent from memory from memory;Molding When, for rear mold by nearby mould, the limit assembly limits the movement of one end on piston rod far from piston, driving device driving oil Cylinder is mobile, makes oil cylinder close to piston rod, and then reduces the space between piston and oil cylinder bottom, and the pressure in the space increases, And the release agent in oil cylinder is sprayed from nozzle.
Driving device can choose hydraulic cylinder, pneumatic cylinder, screw rod or connecting rod cam mechanism.Preferably, in order to reduce energy Consumption simplifies driving mechanism, oil cylinder can be mounted in rear mold, the movement of rear mold, drives oil cylinder separate or close piston rod, into And realize the suction and injection of release agent.
The devices such as oil cylinder are set to carry out the release agent spraying of preceding model cavity in this way, not only increases production efficiency, reduces Spray time, when ensure that each production, the dosage of release agent spraying is consistent, is not influenced by worker's subjective factor, and The power of the mobile rear mold of product forming machine is utilized to realize the movement of oil cylinder opposing pistons, and then realizes absorption, spraying demoulding The function of agent, reduces the energy consumption of spraying release agent, and realizes the synchronism of spraying release agent and molding, avoids spraying Rejected product generates caused by release agent generates the time difference.
Further, the limit assembly includes limited block and block, before the limited block and block are arranged on mould It is parallel on the side wall in die sinking direction, limited block is located at one end on preceding mould side wall close to rear mold, and the block is located at limited block Separate rear mold side, and have spacing between limited block and block;
Side wall of one end activity after limited block with limited block close on block on the piston rod of oil cylinder far from piston Contact;
One end far from piston is provided with position stop piece on the piston rod, and the position stop piece makes one far from piston on piston rod End is only being moved between block after limited block, cannot be deviate from from limited block.
When die sinking, rear mold is far from preceding mould, piston rod and oil cylinder synchronizing moving, until one end of separate piston on piston rod Position stop piece is contacted with limited block, and to limit the movement of piston rod, the piston being attached thereto is also fixed, and then piston and oil Space between cylinder increases, and generates negative pressure, and oil cylinder sucks release agent from memory from memory;
When molding, rear mold by nearby mould, piston rod and oil cylinder synchronizing moving, until one end on piston rod far from piston with Block contact, to limit the movement of piston rod, the piston being attached thereto is also fixed, and then reduces piston and oil cylinder bottom Between space, the pressure in the space increases, and the release agent in oil cylinder is sprayed from nozzle.
Further, the position stop piece is backing pin, and along piston rod radially across piston rod, and position stop piece is along piston rod The projection of axis is not fallen in entirely on the end face of piston rod.
Further, before the limited block and block are fixed on by way of it can dismantle on mould, the memory installation In rear mold.
It further, further include the air pump and air inlet pipe being sequentially communicated, one end far from air pump in the air inlet pipe It is connected to nozzle, when the nozzle release agent spraying, will be sprayed together from the air of air inlet pipe.
Release agent viscosity is larger, and when no air is mixed into, the release agent breaks sexual intercourse that nozzle sprays is poor;When by air pump and After air inlet pipe is mixed into air, nozzle can nebulize release agent ejection, increase the dispersibility of release agent, and model cavity obtains before making Release agent more evenly.
Compared with prior art, the present invention having the following advantages and benefits:
1, the present invention improves the deep cavity mould of injection efficiency, the devices such as oil cylinder is arranged in this way to carry out the demoulding of preceding model cavity Agent spraying, when not only ensure that each production, the dosage of release agent spraying is consistent, is not influenced by worker's subjective factor, and The power of the mobile rear mold of product forming machine is utilized to realize the movement of oil cylinder opposing pistons, and then realizes absorption, spraying demoulding The function of agent, reduces the energy consumption of spraying release agent, and realizes the synchronism of spraying release agent and molding, avoids spraying Rejected product generates caused by release agent generates the time difference;
2, the present invention improves the deep cavity mould of injection efficiency, and release agent viscosity is larger, when no air is mixed into, what nozzle sprayed Release agent breaks sexual intercourse is poor;After being mixed into air by air pump and air inlet pipe, nozzle can nebulize release agent ejection, increase The dispersibility of release agent, the release agent that model cavity obtains before making is more evenly.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram that the present invention is opened;
Fig. 2 is the structural schematic diagram that the present invention molds;
Enlarged diagram when Fig. 3 is die sinking at nozzle.
Label and corresponding parts title in attached drawing:
1- memory, 2- nozzle, 3- input pipe, 4- oil cylinder, 5- efferent duct, 6- rear mold, mould before 7-, 8- piston rod, 9- limit Position block, 10- block, 11- position stop piece, 12- air inlet pipe.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made For limitation of the invention.
Embodiment 1
As shown in Figure 1-Figure 3, the present invention improves the deep cavity mould of injection efficiency, including sequentially connected release agent memory 1 and nozzle 2, check valve, input pipe 3, oil cylinder 4 and efferent duct 5 are disposed between memory 1 and nozzle 2, in preceding mould 7 On be parallel to die sinking direction side wall on be provided with limit assembly;
The nozzle 2 is embedded in rear mold 6 on the nearby end face of mould 7;
The oil cylinder 4 is mounted on the side wall for being parallel to die sinking direction in rear mold 6, and the axis of oil cylinder 4 is parallel to die sinking side To, and one end on the piston rod 8 of oil cylinder 4 far from piston is connect with limit assembly, the limit assembly can limit piston rod 8 Movement;
The input pipe 3 and efferent duct 5 are connected to the working chamber on oil cylinder 4 close to cylinder bottom;When die sinking, cylinder bottom is far from living Plug, release agent enter the working chamber on oil cylinder 4 close to cylinder bottom from memory 1 via check valve and input pipe 3;When molding, cylinder bottom Close to piston, before the release agent in oil cylinder 4 being sent into nozzle 2 and be sprayed to via efferent duct 5 in the type chamber of mould 7.
When die sinking, for rear mold 6 far from preceding mould 7, the limit assembly limits the shifting of one end on piston rod 8 far from piston Dynamic, piston rod 8 is motionless, and the piston being attached thereto is also fixed, and then the space between piston and oil cylinder 4 increases, and generates Negative pressure, oil cylinder suck release agent from memory 1 from memory 1;When molding, rear mold 6 is by nearby mould 7, the limit group Part limits the movement of one end on piston rod 8 far from piston, and then reduces the space between piston and 4 cylinder bottom of oil cylinder, the sky Interior pressure increases, and the release agent in oil cylinder 4 is sprayed from nozzle 2.
The devices such as setting oil cylinder 4 spray in this way to carry out the release agent of 7 type chamber of preceding mould, not only ensure that each production When, the dosage of release agent spraying is consistent, is not influenced by worker's subjective factor, and the dynamic of the mobile rear mold 6 of product forming machine is utilized Power realizes the movements of 4 opposing pistons of oil cylinder, and then realizes the function of absorption, spraying release agent, reduces spraying release agent Energy consumption;Oil cylinder 4 is mounted in rear mold 6, the end of piston rod is capable of fixing on preceding mould 7, spraying release agent is realized With the synchronism of molding, rejected product is generated caused by avoiding spraying release agent from generating the time difference.
Embodiment 2
The present invention is on the basis of embodiment 1, to further illustrate to the present invention.
As shown in Figure 1-Figure 3, the present invention improves the deep cavity mould of injection efficiency, and the limit assembly includes 9 He of limited block It is parallel on mould 7 before block 10, the limited block 9 and block 10 are arranged on the side wall in die sinking direction, before limited block 9 is located at Close to one end of rear mold 6 on 7 side wall of mould, the block 10 is located at the side of the separate rear mold 6 of limited block 9, and limited block 9 and gear There is spacing between block 10;
One end activity on the piston rod 8 of oil cylinder 4 far from piston after the limited block 9 on block 10 close to limited block 9 Side wall contact;
One end on piston rod 8 far from piston is provided with position stop piece 11, and the position stop piece 11 makes on piston rod 8 far from living One end of plug is only being moved between block 10 after limited block 9, cannot be deviate from from limited block 9.
When die sinking, rear mold 6 is far from preceding mould 7, piston rod 8 and 4 synchronizing moving of oil cylinder, until separate piston on piston rod 8 The position stop piece 11 of one end is contacted with limited block 9, and to limit the movement of piston rod 8, the piston being attached thereto is also fixed, into And the space between piston and oil cylinder 4 increases, and generates negative pressure, oil cylinder inhales release agent from memory 1 from memory 1 Enter;
When molding, rear mold 6 is by nearby mould 7, piston rod 8 and 4 synchronizing moving of oil cylinder, until separate piston on piston rod 8 One end is contacted with block 10, and to limit the movement of piston rod 8, the piston being attached thereto is also fixed, and then reduces piston Space between 4 cylinder bottom of oil cylinder, the pressure in the space increases, and the release agent in oil cylinder 4 is sprayed from nozzle 2.
Further, the position stop piece 11 is backing pin, along piston rod 8 radially across piston rod 8, and position stop piece 11 edge The projection of 8 axis of piston rod is not fallen in entirely on the end face of piston rod 8.
Further, before the limited block 9 and block 10 are fixed on by way of it can dismantle on mould 7, the memory 1 It is mounted in rear mold 6.
Embodiment 3
The present invention is on the basis of embodiment 1, to further illustrate to the present invention.
As shown in Figure 1-Figure 3, the present invention improve injection efficiency deep cavity mould, further include the air pump being sequentially communicated and into Tracheae 12, one end in the air inlet pipe 12 far from air pump are connected to nozzle 2, will be from when 2 release agent spraying of nozzle The air of air inlet pipe 12 sprays together.
Release agent viscosity is larger, and when no air is mixed into, the release agent breaks sexual intercourse that nozzle 2 sprays is poor;When passing through air pump After being mixed into air with air inlet pipe 12, nozzle 2 can nebulize release agent ejection, increase the dispersibility of release agent, make preceding model The release agent that chamber obtains is more evenly.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include Within protection scope of the present invention.

Claims (3)

1. improving the deep cavity mould of injection efficiency, including sequentially connected release agent memory (1) and nozzle (2), feature exists In: check valve, input pipe (3), oil cylinder (4) and efferent duct (5) are disposed between memory (1) and nozzle (2), preceding It is parallel on mould (7) on the side wall in die sinking direction and is provided with limit assembly;
The nozzle (2) is embedded in the rear mold (6) of deep cavity mould on the end face of the preceding mould (7) of deep cavity mould;
The side of deep cavity mould is arranged in the oil cylinder (4), and the axis of oil cylinder (4) is parallel to die sinking direction, and the work of oil cylinder (4) One end on stopper rod (8) far from piston is connect with limit assembly, and the limit assembly can limit piston rod (8) along oil cylinder (4) The movement of axis, driving device drive cylinder (4) is close or far from piston rod (8) at this time;
The input pipe (3) and efferent duct (5) are connected to the working chamber on oil cylinder (4) close to cylinder bottom;When die sinking, cylinder bottom is separate Piston, release agent enter the working chamber on oil cylinder (4) close to cylinder bottom from memory (1) via check valve and input pipe (3);Molding When, the release agent in oil cylinder (4) can be sent into nozzle (2) via efferent duct (5) and spray to preceding mould (7) by cylinder bottom close to piston In type chamber;
The limit assembly includes limited block (9) and block (10), and the limited block (9) and block (10) are arranged at preceding mould (7) it is parallel on the side wall in die sinking direction, limited block (9) is located at one end on preceding mould (7) side wall close to rear mold (6), described Block (10) is located at the side of the separate rear mold (6) of limited block (9), and has spacing between limited block (9) and block (10);
On the piston rod (8) of the oil cylinder (4) far from piston one end activity through limited block (9) afterwards with it is close on block (10) The side wall of limited block (9) contacts;
One end on piston rod (8) far from piston is provided with position stop piece (11), and the position stop piece (11) makes remote on piston rod (8) One end from piston is only moved between block (10) in limited block (9) afterwards, cannot be deviate from from limited block (9);The gear Part (11) is backing pin, and along piston rod (8) radially across piston rod (8), and position stop piece (11) is along the throwing of piston rod (8) axis Shadow is not fallen in entirely on the end face of piston rod (8);
The limited block (9) and block (10) are fixed on preceding mould (7) by way of it can dismantle.
2. the deep cavity mould according to claim 1 for improving injection efficiency, it is characterised in that: further include the sky being sequentially communicated Air pump and air inlet pipe (12), one end on the air inlet pipe (12) far from air pump are connected to nozzle (2), and the nozzle (2) is sprayed When release agent, it will be sprayed together from the air of air inlet pipe (12).
3. the deep cavity mould according to claim 1 for improving injection efficiency, it is characterised in that: memory (1) installation On rear mold (6).
CN201710282716.9A 2017-04-26 2017-04-26 Improve the deep cavity mould of injection efficiency Active CN106827410B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110103429A (en) * 2019-06-11 2019-08-09 黄玉华 A kind of easily demoulding efficient injection mold

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111660470A (en) * 2020-05-27 2020-09-15 青岛科技大学 Release agent spraying device and rubber injection molding equipment

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US4759703A (en) * 1986-03-05 1988-07-26 Netstal-Maschinen Ag Equipment for spraying the mold surfaces of multi-part dies
CN203485408U (en) * 2013-08-07 2014-03-19 浙江德库玛机械有限公司 Mould opening-demoulding linkage mechanism of injection mould machine
CN205732881U (en) * 2016-06-27 2016-11-30 广州德志金属制品有限公司 A kind of interior spray system of die casting
CN206716309U (en) * 2017-04-26 2017-12-08 泸州市胜科模具制造有限公司 The device of the automatic spraying releasing agent of deep cavity mould

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JPH06269917A (en) * 1993-03-19 1994-09-27 Olympus Optical Co Ltd Method and device for spraying die casting product
JPH09122881A (en) * 1995-11-07 1997-05-13 Kiriyuu Kikai Kk Die for vertical type pressure casting machine

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Publication number Priority date Publication date Assignee Title
DE2526901A1 (en) * 1975-06-16 1977-01-13 Acheson Gmbh Mobile spray head for cleaning or lubricating compression moulds - having mutually perpendicular introduction and retraction paths
US4759703A (en) * 1986-03-05 1988-07-26 Netstal-Maschinen Ag Equipment for spraying the mold surfaces of multi-part dies
CN203485408U (en) * 2013-08-07 2014-03-19 浙江德库玛机械有限公司 Mould opening-demoulding linkage mechanism of injection mould machine
CN205732881U (en) * 2016-06-27 2016-11-30 广州德志金属制品有限公司 A kind of interior spray system of die casting
CN206716309U (en) * 2017-04-26 2017-12-08 泸州市胜科模具制造有限公司 The device of the automatic spraying releasing agent of deep cavity mould

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110103429A (en) * 2019-06-11 2019-08-09 黄玉华 A kind of easily demoulding efficient injection mold

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