CN102950720B - Plastic package stator runner-free mold - Google Patents
Plastic package stator runner-free mold Download PDFInfo
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- CN102950720B CN102950720B CN201210435864.7A CN201210435864A CN102950720B CN 102950720 B CN102950720 B CN 102950720B CN 201210435864 A CN201210435864 A CN 201210435864A CN 102950720 B CN102950720 B CN 102950720B
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Abstract
The invention provides a plastic package stator runner-free mold, and relates to a mold. In the prior art, the BMC plastic package stator and a material handle are integrated after injection molding, such that a special device is required to cut the material handle, finishing is performed, and disadvantages of more processes, time wasting, appearance affecting, environmental pollution and poor plastic package part quality are provided. The plastic package stator runner-free mold is characterized in that a middle position of a mold fixation seat plate is provided with a positioning ring and a main pouring nozzle concentrically arranged with the positioning ring, a mold fixation plate is provided with a material inlet chamber having an upward opening, a cold pouring nozzle is embedded into the material inlet chamber, a runner plate is arranged between the mold fixation seat plate and the mold fixation plate, a cold runner penetrating the main pouring nozzle and the cold pouring nozzle is arranged inside the runner plate, both sides of the runner plate are provided with a supporting foot higher than the runner plate, the runner plate and the cold pouring nozzle are provided with cooling channels, and thermal insulation layers are arranged between the cold pouring nozzle and the chamber wall of the material inlet chamber and between the runner plate and the mold fixation plate. According to the present invention, the BMC material always maintains an uncured flowing state in the runner plate, and no flowing water material is generated during an injection molding process so as to achieve material saving, energy consumption reduction and environment protection.
Description
Technical field
The present invention relates to a kind of mould.
Background technology
The BMC(BMC of prior art) plastic-sealing mould structure, the tapering passage that during injection of BMC material, BMC is entered between plastic sealed mould runner by injection machine nozzle enters sprue; The cast gate of die cavity is entered again by runner end; Temperature is entered the higher mold runner of temperature compared with the BMC bulk plastics at the end by high-pressure injection by this charging mould structure; Produce plastic packaging stator after there is the Guization ﹐ injection moulding of BMC surface in Zu Li ﹐ flow process during flowing to be connected as a single entity with material handle, material handle needs to split with special equipment, and pass through crushing, operation is more, lose time, easily form arc pit or collapse scarce, affecting outward appearance, affect the healthy of operating personnel, thus affect plastic part quality.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition carries out improving to prior art and improves, and provides a kind of Plastic package stator runner-free mold, reduce operation, put forward high-quality object to reach.For this reason, the present invention takes following technical scheme.
A kind of Plastic package stator runner-free mold, comprise dynamic model, cover half, described cover half comprises top clamping plate, offers the solid plate of line stator die cavity, it is characterized in that: centring ring, the main filling mouth concentric with centring ring are established in top clamping plate centre position, solid plate is established the feed cavity of opening upwards, embed cold-penetration mouth in feed cavity, between top clamping plate and solid plate, be provided with runner plate, establish the cold runner of through main filling mouth, cold-penetration mouth in runner plate, the both sides of runner plate are provided with the feet higher than runner plate; Runner plate and cold-penetration mouth are equipped with cooling duct, between described cold-penetration mouth and the chamber wall of feed cavity, between runner plate and solid plate, are equipped with thermal insulation layer.Centring ring plays the role of positioning to shorten the die-filling time; Main filling mouth is for connecting material sputtering nozzle and runner plate makes BMC be injected into smoothly inside cold runner; Thermal insulation layer plays heat-blocking action.Cooling water flow is taken out of through the heat of cooling duct by runner plate, and the temperature of restriction runner plate, coordinates thermal insulation layer, and the temperature of runner plate keeps within the specific limits; BMC material remains end solidification flow regime injecting in flow process, does not produce flowing waste material, effectively solve BMC and expect to expect handle problem in plastic packaging process, and then reach saving material, reduce energy consumption, protection of the environment is significant in injection moulding process.The BMC of cold runner part enters die cavity when next mould injection moulding, and in whole process of injection molding, the BMC plastic packaging material in injecting systems remains end solidification flow regime, and in flow process, the pressure loss is little; Be conducive to pressure transmission, overcome the contraction indenture produced because feed supplement is not enough; Reduce product component internal stress, therefore product component deformation extent reduces greatly, reduces engineering process scrappage, improves the quality of products; The system cools time is short, just can die sinking in time eject after parts-moulding solidification; Thus shorten the parts-moulding time; Product is finished product after runnerless mould tool is shaping, without the need to repairing cast gate, is conducive to the production automation.
As improving further and supplementing technique scheme, the present invention also comprises following additional technical feature.
A temperature sensor be connected with controller is provided with in the cooling duct of runner plate.Temperature sensor feedback temperature is to controller, and controller can according to water temperature, controlled cooling model discharge, the temperature of accurate control flow check guidance tape.
Runner plate is rectangular, a plurality of straight hole of its side opening, and straight hole is communicated with formation cooling duct.Can be connected by outer flexible tube between straight hole, or directly be connected in inside by intersection straight hole.
Four sides of runner plate all have straight hole, and except two apertures, plug is all established in the aperture of all the other straight holes, and crisscross straight hole forms cooling duct.
Be provided with inserted sheet at least one straight hole, straight hole is divided into two by inserted sheet, and the end of length or inserted sheet that the length of inserted sheet is less than corresponding straight hole is provided with breach.Be conducive to the length improving cooling duct.
Cold runner cross section is "×" shape, its four foots portion is equipped with discharging opening straight down, described discharging opening is relative with cold-penetration mouth, runner plate three side is equipped with blind hole vertical with it, the center line of blind hole cross runner plate center and blind hole depth to be less than 1/2 plate long, vertical inserted sheet is inserted in blind hole, the homonymy runner plate being positioned at blind hole both sides is arranged with the small diameter bore that and diameter parallel with blind hole is less than blind hole, runner plate remains a side and offers two minor diameter blind holes, the aperture of two minor diameter blind holes is respectively import and the outlet of cooling duct, minor diameter blind hole, small diameter bore, blind hole is communicated with formation cooling duct.Cooling duct is located in runner plate, functional reliability is good, blind bore end is near the middle part of cold runner in addition, and because having inserted sheet in blind hole, cooling water changes the flow direction at blind via bottom, makes cooling water flow through blind via bottom, heat radiation in the middle part of effective raising runner plate, control the temperature of cold runner, runner plate is dispelled the heat evenly, and the temperature at surrounding and middle part is substantially identical.
The lower surface of runner plate is provided with four upper feeding chambeies that Open Side Down, and described upper feeding chamber is relative with lower feed cavity, and described cold-penetration mouth embeds by upper and lower feed cavity.Cold-penetration mouth is reliably located, and easy to assembly, makes cold-penetration mouth can reliably connect die cavity and cold runner.
Described top clamping plate is provided with pin-and-hole, and described runner plate is provided with the lower pin-and-hole communicated with upper pin-and-hole, and bearing pin inserts in upper pin-and-hole and lower pin-and-hole.Bearing pin is used for the location of runner plate, ensures installation accuracy.
A plurality of screw hole is offered in the upper surface of described runner plate, and be spirally connected in described screw hole screw, and the upper surface of screw can offset with the lower surface of top clamping plate.The extension of screw is adjustable, and upper surface and the top clamping plate of screw offset, and can limit moving up and down of runner plate, reduces runner plate and in injection moulding process, is subject to crunch and is out of shape.
Beneficial effect: cooling water flow is taken out of through the heat of cooling duct by runner plate, the temperature of restriction runner plate, coordinates thermal insulation layer, and the temperature of runner plate keeps within the specific limits, the temperature stabilization of cold runner; BMC material remains end solidification flow regime injecting in flow process, does not produce flowing waste material, effectively solve BMC and expect to expect handle problem in plastic packaging process, and then reach saving material, reduce energy consumption, protection of the environment is significant in injection moulding process.The BMC of cold runner part enters die cavity when next mould injection moulding, and in whole process of injection molding, the BMC plastic packaging material in injecting systems remains end solidification flow regime, and in flow process, the pressure loss is little; Be conducive to pressure transmission, overcome the contraction indenture produced because feed supplement is not enough; Reduce product component internal stress, therefore product component deformation extent reduces greatly, reduces engineering process scrappage, improves the quality of products; The system cools time is short, just die sinking in time can eject, thus shorten the parts-moulding time after parts-moulding solidification; Product is finished product after runnerless mould tool is shaping, without the need to repairing cast gate, is conducive to the production automation; Save the excision of material handle and grinding process, reduce equipment investment; Products appearance flat smooth, produces without dust, solves a dust process difficult problem, reduces motor safety hidden danger and environmental pollution, be conducive to enhancing productivity; Structure is simple, reliable operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is runner plate sectional structure schematic diagram of the present invention.
In figure: 1-top clamping plate; 2-solid plate; 3-line stator die cavity; 4-centring ring; The main filling mouth of 5-; 6-cold-penetration mouth; 7-runner plate; 8-cold runner; 9-feet; 10-cooling duct; 11-thermal insulation layer; 12-temperature sensor; 13-plug; 14-inserted sheet; 15-blind hole; 16-small diameter bore; 17-minor diameter blind hole; 18-bearing pin.
Detailed description of the invention
Below in conjunction with Figure of description, technical scheme of the present invention is described in further detail.
As shown in Figure 1, comprise dynamic model, cover half, cover half comprises top clamping plate 1, offers the solid plate 2 of line stator die cavity 3, it is characterized in that: centring ring 4, the main filling mouth 5 concentric with centring ring 4 are established in top clamping plate 1 centre position, solid plate 2 is established the feed cavity of opening upwards, in feed cavity, embed cold-penetration mouth 6, between top clamping plate 1 and solid plate 2, be provided with runner plate 7, establish the cold runner 8 of through main filling mouth 5, cold-penetration mouth 6 in runner plate 7, the both sides of runner plate 7 are provided with the feet 9 higher than runner plate 7; Runner plate 7 and cold-penetration mouth 6 are equipped with cooling duct 10, between the chamber wall of cold-penetration mouth 6 and feed cavity, between runner plate 7 and solid plate 2, are equipped with thermal insulation layer 11.Cooling water flow is taken out of through the heat of cooling duct 10 by runner plate 7, and the temperature of restriction runner plate 7, coordinates thermal insulation layer 11, and the temperature of runner plate 7 keeps within the specific limits; BMC material inject in flow process remain end solidification flow regime.
For accurate temperature control, in the cooling duct 10 of runner plate 7, be provided with a temperature sensor be connected with controller 12.Temperature sensor 12 feedback temperature is to controller, and controller can according to water temperature, controlled cooling model discharge, the temperature of accurate control flow check guidance tape 7.
The lower surface of runner plate 7 is provided with four upper feeding chambeies that Open Side Down, and upper feeding chamber is relative with lower feed cavity, and cold-penetration mouth 6 embeds by upper and lower feed cavity.Cold-penetration mouth 6 is reliably located, and easy to assembly, makes cold-penetration mouth 6 energy reliable connected die cavity and cold runner 8.
For improving assembly precision, top clamping plate 1 is provided with pin-and-hole, and runner plate 7 is provided with the lower pin-and-hole communicated with upper pin-and-hole, and bearing pin 18 inserts in upper pin-and-hole and lower pin-and-hole.Bearing pin 18, for the location of runner plate 7, ensures installation accuracy.
For reducing the distortion of runner plate 7, a plurality of screw hole is offered in the upper surface of runner plate 7, and be spirally connected in screw hole screw, and the upper surface of screw can offset with the lower surface of top clamping plate 1.The extension of screw is adjustable, and upper surface and the top clamping plate 1 of screw offset, and can limit moving up and down of runner plate 7, reduces runner plate 7 and in injection moulding process, is subject to crunch and is out of shape.
As shown in Figure 2, runner plate 7 is rectangular, and its four side all has straight hole, and except two apertures, plug 13 is all established in the aperture of all the other straight holes, and crisscross straight hole forms cooling duct 10.Cold runner 8 cross section is "×" shape, its four foots portion is equipped with discharging opening straight down, discharging opening is relative with cold-penetration mouth 6, runner plate 7 three side is equipped with blind hole 15 vertical with it, the center line of blind hole 15 cross runner plate 7 center and blind hole 15 degree of depth to be less than 1/2 plate long, vertical inserted sheet 14 is inserted in blind hole 15, the homonymy runner plate 7 being positioned at blind hole 15 both sides is arranged with the small diameter bore 16 that and diameter parallel with blind hole 15 is less than blind hole 15, runner plate 7 remains a side and offers two minor diameter blind holes 17, the aperture of two minor diameter blind holes 17 is respectively import and the outlet of cooling duct 10, minor diameter blind hole 17, small diameter bore 16, blind hole 15 is communicated with formation cooling duct 10.Blind hole 15 is divided into two by inserted sheet 14, and the end of inserted sheet 14 is provided with breach.Cooling duct 10 is located in runner plate 7, functional reliability is good, blind hole 15 end is near the middle part of cold runner 8 in addition, and because having inserted sheet 14 in blind hole 15, cooling water changes the flow direction bottom blind hole 15, cooling water is made to flow through bottom blind hole 15, heat radiation in the middle part of effective raising runner plate 7, control the temperature of cold runner 8, make runner plate 7 dispel the heat evenly, the temperature at surrounding and middle part is substantially identical.
Claims (9)
1. a Plastic package stator runner-free mold, comprise dynamic model, cover half, described cover half comprises top clamping plate (1), offer the solid plate (2) of line stator die cavity (3), it is characterized in that: centring ring (4) is established in top clamping plate (1) centre position, the main filling mouth (5) concentric with centring ring (4), solid plate (2) is established the lower feed cavity of opening upwards, cold-penetration mouth (6) is embedded in lower feed cavity, runner plate (7) is provided with between top clamping plate (1) and solid plate (2), through main filling mouth (5) is established in runner plate (7), the cold runner (8) of cold-penetration mouth (6), the both sides of runner plate (7) are provided with the feet (9) higher than runner plate (7), runner plate (7) and cold-penetration mouth (6) are equipped with cooling duct (10), between described cold-penetration mouth (6) and the chamber wall of feed cavity, between runner plate (7) and solid plate (2), are equipped with thermal insulation layer (11).
2. a kind of Plastic package stator runner-free mold according to claim 1, is characterized in that: be provided with a temperature sensor be connected with controller (12) in the cooling duct (10) of runner plate (7).
3. a kind of Plastic package stator runner-free mold according to claim 2, is characterized in that: runner plate (7) is rectangular, a plurality of straight hole of its side opening, and straight hole is communicated with formation cooling duct (10).
4. a kind of Plastic package stator runner-free mold according to claim 3, is characterized in that: four sides of runner plate (7) all have straight hole, and except two apertures, plug (13) is all established in the aperture of all the other straight holes, and crisscross straight hole forms cooling duct (10).
5. a kind of Plastic package stator runner-free mold according to claim 4, it is characterized in that: at least one straight hole, be provided with inserted sheet (14), straight hole is divided into two by inserted sheet (14), and the end of length or inserted sheet (14) that the length of inserted sheet (14) is less than corresponding straight hole is provided with breach.
6. a kind of Plastic package stator runner-free mold according to claim 5, it is characterized in that: cold runner (8) cross section is "×" shape, its four foots portion is equipped with discharging opening straight down, described discharging opening is relative with cold-penetration mouth (6), runner plate (7) three side is equipped with blind hole (15) vertical with it, the center line of blind hole (15) cross runner plate (7) center and blind hole (15) degree of depth to be less than 1/2 plate long, vertical inserted sheet (14) is inserted in blind hole (15), the homonymy runner plate (7) being positioned at blind hole (15) both sides is arranged with the small diameter bore (16) that and diameter parallel with blind hole (15) is less than blind hole (15), runner plate (7) remains a side and offers two minor diameter blind holes (17), the aperture of two minor diameter blind holes (17) is respectively import and the outlet of cooling duct (10), minor diameter blind hole (17), small diameter bore (16), blind hole (15) is communicated with formation cooling duct (10).
7. a kind of Plastic package stator runner-free mold according to claim 6, it is characterized in that: the lower surface of runner plate (7) is provided with four upper feeding chambeies that Open Side Down, described upper feeding chamber is relative with lower feed cavity, and described cold-penetration mouth (6) embeds by upper and lower feed cavity.
8. a kind of Plastic package stator runner-free mold according to claim 1, is characterized in that: described top clamping plate (1) is provided with pin-and-hole, and described runner plate (7) is provided with the lower pin-and-hole communicated with upper pin-and-hole, in bearing pin (18) insertion in pin-and-hole and lower pin-and-hole.
9. a kind of Plastic package stator runner-free mold according to claim 8, it is characterized in that: a plurality of screw hole is offered in the upper surface of described runner plate (7), be spirally connected in described screw hole screw, and the upper surface of screw can offset with the lower surface of top clamping plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210435864.7A CN102950720B (en) | 2012-11-05 | 2012-11-05 | Plastic package stator runner-free mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210435864.7A CN102950720B (en) | 2012-11-05 | 2012-11-05 | Plastic package stator runner-free mold |
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| Publication Number | Publication Date |
|---|---|
| CN102950720A CN102950720A (en) | 2013-03-06 |
| CN102950720B true CN102950720B (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210435864.7A Active CN102950720B (en) | 2012-11-05 | 2012-11-05 | Plastic package stator runner-free mold |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358472A (en) * | 2013-08-03 | 2013-10-23 | 昆山市浩坤机械有限公司 | Display mold |
| CN103358470A (en) * | 2013-08-03 | 2013-10-23 | 昆山市浩坤机械有限公司 | Display mold |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309379A (en) * | 1978-12-21 | 1982-01-05 | Hooker Chemicals & Plastics Corp. | Method and apparatus for runnerless injection-compression molding thermosetting materials |
| CN101474851A (en) * | 2009-01-15 | 2009-07-08 | 旭丽电子(广州)有限公司 | Three-plate type mold equipment |
| CN202826273U (en) * | 2012-11-05 | 2013-03-27 | 卧龙电气集团股份有限公司 | Runnerless mould for plastic package of stator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2876618B1 (en) * | 2004-10-15 | 2008-10-17 | Delachaux Sa Sa | MOLDING INJECTION DEVICE WITH DISTRIBUTED SUPPORT |
| US7314367B2 (en) * | 2005-02-25 | 2008-01-01 | Mold-Masters (2007) Limited | Hot runner nozzle collar for an injection molding apparatus |
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2012
- 2012-11-05 CN CN201210435864.7A patent/CN102950720B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309379A (en) * | 1978-12-21 | 1982-01-05 | Hooker Chemicals & Plastics Corp. | Method and apparatus for runnerless injection-compression molding thermosetting materials |
| CN101474851A (en) * | 2009-01-15 | 2009-07-08 | 旭丽电子(广州)有限公司 | Three-plate type mold equipment |
| CN202826273U (en) * | 2012-11-05 | 2013-03-27 | 卧龙电气集团股份有限公司 | Runnerless mould for plastic package of stator |
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| CN102950720A (en) | 2013-03-06 |
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Address after: 312300 No. 1801 Renmin West Road, Shaoxing, Zhejiang, Shangyu Co-patentee after: Zhejiang Wolong Household Electric Machinery Co., Ltd. Patentee after: Wolong Electric Drive Group Co., Ltd. Address before: 312300 No. 1801 Renmin West Road, Shaoxing, Zhejiang, Shangyu Co-patentee before: Zhejiang Wolong Household Electric Machinery Co., Ltd. Patentee before: Wolong Electric Group Co., Ltd. |
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