CN202192735U - Forming die for plastic frame injection moulding - Google Patents
Forming die for plastic frame injection moulding Download PDFInfo
- Publication number
- CN202192735U CN202192735U CN2011203328575U CN201120332857U CN202192735U CN 202192735 U CN202192735 U CN 202192735U CN 2011203328575 U CN2011203328575 U CN 2011203328575U CN 201120332857 U CN201120332857 U CN 201120332857U CN 202192735 U CN202192735 U CN 202192735U
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- Prior art keywords
- plastic frame
- flow path
- injection moulding
- hot flow
- mould
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- Expired - Lifetime
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000005266 casting Methods 0.000 abstract 4
- 230000003068 static effect Effects 0.000 abstract 1
- 208000015943 Coeliac disease Diseases 0.000 description 17
- 238000000465 moulding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a forming die for plastic frame injection moulding, which includes a static die, a moving die, a cavity and a casting system, and is characterized in that the casting system is a hot runner casting system and arranged on the moving die; and hot runner pouring gates in the hot runner casting system are positioned on the cavity enabling feeding to be performed on end surfaces of side edges of plastic frames. During the plastic frame injection moulding and forming process, the forming die provided by the utility model has no cold material bundle, saves raw material, shortens the forming period, improves the production efficiency, and can ensure the appearance quality of the product as no pouring gate mark is generated on the front side of the plastic product (plastic frame).
Description
Technical field
The utility model belongs to the field shaping technique of plastic frame product, especially relates to employed mould in a kind of plastic frame injection moulding process.
Background technology
Show the plastic frame of series products such as television set, display etc., generally have following characteristics:
(1) be made up of upper and lower, left and right four edges frame, the centre is empty.
(2) have vertical side on each frame.
(3) wall thickness of each frame is thinner, generally below 3mm.
(4) surface quality requires high.
In the prior art; In conjunction with Fig. 1, Fig. 2 and Fig. 3; The injection moulding process of above-mentioned plastic frame 1 and mould; General adopt positive assembling structure, the injection molding machine injects die cavity by the crotch cast gate 3 of nozzle through cold runner in the mould with molten plastic with molten plastic, and obtaining product after the moulding is plastic frame (product).Owing to using cold runner, there are a large amount of material handles, waste raw material and the energy.Because the running channel diameter generally much larger than the product wall thickness, therefore the cool time that will be longer than product cool time of material handle, causes the molding cycle of mould long, production efficiency is low in addition.
Therefore, above-mentioned plastic frame injection moulding also needs further to improve with mould.
The utility model content
The task of the utility model is to solve that the plastic frame injection moulding provides a kind of plastic frame injection moulding to use mould with the existing technological deficiency of mould in the prior art.
Its technical solution is:
Mould is used in a kind of plastic frame injection moulding; Comprise quiet mould, dynamic model, die cavity and running gate system; Above-mentioned running gate system is the hot flow path running gate system, is arranged on the dynamic model, and the heat flow passage sprue in the hot flow path running gate system is positioned at can be on the die cavity of the lateral end panel place charging of plastic frame.
Above-mentioned dynamic model is provided with dynamic mould core and inserts, and heat flow passage sprue is arranged on dynamic mould core inserts, and the hot flow path in the above-mentioned hot flow path running gate system gos deep into dynamic mould core to be inserted, and mouth and heat flow passage sprue through hot flow path join.
Above-mentioned dynamic model disposes ejection assembly, and ejection assembly is fixed on head board and releases on the fixed head, adopts two or more Driven by Hydraulic Cylinder; The cylinder part of hydraulic cylinder is fixed on the hot flow path fixed head, and the piston rod partial fixing is on head board, and perhaps the cylinder part of hydraulic cylinder is fixed on the head board, and the piston rod partial fixing is on the hot flow path fixed head.
The utlity model has following useful technique effect:
The utility model can either realize not having the cold burden handle in the plastic frame injection molding process, shorten molding cycle, and conservation is enhanced productivity; Can avoid again guaranteeing the presentation quality of product in the positive gate vestiges that produces of plastic product (plastic frame).
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described further:
The running gate system schematic layout pattern that Fig. 1 takes for the injection moulding process of a kind of plastic frame in the prior art shows the anti-TV structure of side direction.
Fig. 2 is the structural representation of facing of Fig. 1 mode.
Fig. 3 shows structural representation for the partial cutaway of Fig. 1 mode.
The running gate system schematic layout pattern that Fig. 4 takes for the injection moulding process of a kind of plastic frame relevant with the utility model.
Fig. 5 is the partial structurtes sketch map of Fig. 4 mode, mainly shows the placement location of heat flow passage sprue.
Fig. 6 is the structural principle sketch map of a kind of embodiment of the utility model.
Fig. 7 is the partial structurtes sketch map of Fig. 6 mode, mainly shows the placement location of heat flow passage sprue.。
Fig. 8 is the partial structurtes sketch map of Fig. 6 mode, mainly shows the driving oil cylinder part in the ejection assembly.
The specific embodiment
In order to understand the utility model better, at first introduce the injection moulding process of a kind of plastic frame relevant with the utility model.
In conjunction with Fig. 4 and Fig. 5, the injection moulding process of above-mentioned plastic frame comprises injecting step.In injecting step; Adopt the injection molding machine that molten plastic is injected die cavity through nozzle and running gate system; Above-mentioned running gate system adopts the hot flow path running gate system; Comprise hot flow path, heat flow passage sprue, hot flow path joins with heat flow passage sprue 3 through the mouth 2 of hot flow path, and heat flow passage sprue is taked the feeding manner at the lateral end panel place of plastic frame 1.The quantity of cast gate and position are provided with according to the formed product needs; As a kind of layout type; Present embodiment adopts four heat flow passage sprues, a frame in four frames of the corresponding plastic frame 1 of difference, and each heat flow passage sprue is taked the feeding manner at the lateral end panel central part place of corresponding frame.
Relevant forming step of other that do not address in the above-mentioned injection moulding process and content are taked or are used for reference prior art and can realize.
Secondly, the utility model is done more detailed explanation.In conjunction with Fig. 6, Fig. 7 and Fig. 8, mould is used in a kind of plastic frame injection moulding, comprises quiet mould, dynamic model, die cavity and running gate system.Above-mentioned running gate system is the hot flow path running gate system, is arranged on the dynamic model, and the hot flow path running gate system comprises hot flow path 4 and heat flow passage sprue 3, and heat flow passage sprue 3 is positioned at can be on the die cavity wall of the lateral end panel place charging of plastic frame.As a kind of layout type, present embodiment adopts four heat flow passage sprues, and a frame in four frames of corresponding plastic frame respectively, each heat flow passage sprue lay respectively at can be on the die cavity wall of lateral end panel central part place's charging of corresponding frame.Above-mentioned dynamic model is provided with dynamic mould core and inserts 5, and heat flow passage sprue is arranged on dynamic mould core and inserts on 5, and above-mentioned hot flow path stretches into dynamic mould core and inserts, and mouth 2 and heat flow passage sprue through hot flow path join.Above-mentioned dynamic model also comprises moving platen 6, cushion block 7, hot flow path fixed head 8, hot flow path backing plate 9, Bottom clamp plate 10, head board 11, releases fixed head 12, centring ring 13; Wherein hot flow path passes moving platen, head board and releases fixed head; The entering dynamic mould core is inserted, and is fixed on the dynamic model through hot flow path fixed head, hot flow path backing plate and Bottom clamp plate.Above-mentioned quiet mould comprises quiet template 14, quiet die holder plate 15, cavity block 16.Above-mentioned cavity block and dynamic mould core are inserted and are formed the injection mo(u)lding that die cavity is used for plastic frame.
Above-mentioned dynamic model disposes ejection assembly; The ejection assembly drive unit adopts two hydraulic cylinders 17; The cylinder part of each hydraulic cylinder is fixed on the hot flow path running gate system fixed head; The piston rod partial fixing is being with the ejection assembly motion by two hydraulic cylinder synchronous driving head boards 11, release fixed heads 12 on head board 11.During die sinking, dynamic model separates with quiet mould, is driven head boards, is released fixedly strip and ejection assembly and move by two hydraulic cylinder synchronous, ejects plastic, and product is separated with the core of dynamic model.
The related content of not addressing in the above-mentioned mould embodiment is taked or is used for reference prior art and can realize.
The inventor is in the process of developing the invention; Do and appear following trial, that is: heat flow passage sprue is taked the feeding manner at the back side of plastic frame, owing to show that the plastic frame wall thickness of series products is all very thin; Very easily produce gate vestiges in the product front, influence the product appearance quality.The effect that obtains with the invention differs greatly.
Need to prove that those skilled in the art can also make such or such easy variation pattern under the instruction of this specification, such as equivalent way, or obvious mode of texturing.Above-mentioned variation pattern all should be within the protection domain of the utility model.
Claims (3)
1. mould is used in a plastic frame injection moulding; Comprise quiet mould, dynamic model, die cavity and running gate system; It is characterized in that: said running gate system is the hot flow path running gate system; Be arranged on the dynamic model, the heat flow passage sprue in the hot flow path running gate system is positioned at can be on the die cavity of the lateral end panel place charging of plastic frame.
2. mould is used in plastic frame injection moulding according to claim 1; It is characterized in that: said dynamic model is provided with dynamic mould core and inserts; Heat flow passage sprue is arranged on dynamic mould core inserts; Hot flow path in the said hot flow path running gate system stretches into dynamic mould core and inserts, and mouth and heat flow passage sprue through hot flow path join.
3. mould is used in plastic frame injection moulding according to claim 1, it is characterized in that: said dynamic model disposes ejection assembly, and ejection assembly is fixed on head board and releases on the fixed head, adopts two or more Driven by Hydraulic Cylinder; The cylinder part of hydraulic cylinder is fixed on the hot flow path fixed head, and the piston rod partial fixing is on head board, and perhaps the cylinder part of hydraulic cylinder is fixed on the head board, and the piston rod partial fixing is on the hot flow path fixed head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203328575U CN202192735U (en) | 2011-09-06 | 2011-09-06 | Forming die for plastic frame injection moulding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203328575U CN202192735U (en) | 2011-09-06 | 2011-09-06 | Forming die for plastic frame injection moulding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202192735U true CN202192735U (en) | 2012-04-18 |
Family
ID=45947665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203328575U Expired - Lifetime CN202192735U (en) | 2011-09-06 | 2011-09-06 | Forming die for plastic frame injection moulding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202192735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441968A (en) * | 2011-09-06 | 2012-05-09 | 青岛海信模具有限公司 | Injection molding method of plastic frame and forming die used in same |
-
2011
- 2011-09-06 CN CN2011203328575U patent/CN202192735U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441968A (en) * | 2011-09-06 | 2012-05-09 | 青岛海信模具有限公司 | Injection molding method of plastic frame and forming die used in same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120418 |
|
| CX01 | Expiry of patent term |