CN105216223A - A kind of BMC mould and moulding process thereof - Google Patents
A kind of BMC mould and moulding process thereof Download PDFInfo
- Publication number
- CN105216223A CN105216223A CN201510536425.9A CN201510536425A CN105216223A CN 105216223 A CN105216223 A CN 105216223A CN 201510536425 A CN201510536425 A CN 201510536425A CN 105216223 A CN105216223 A CN 105216223A
- Authority
- CN
- China
- Prior art keywords
- bmc
- mould
- cover half
- dynamic model
- mold insert
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C2045/7343—Heating or cooling of the mould heating or cooling different mould parts at different temperatures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of BMC mould, comprise fixed half and moving half, cooling mold insert (15) is set around the cast cover (4) on described cover half.The invention also discloses the moulding process of this mould.Adopt technique scheme, by carrying out structure improvement to running gate system, temperature control system, formation system, gas extraction system, effectively controlling the forming temperature of BMC, realizing the injection mo(u)lding of BMC; Improve shaping production efficiency; Product size is stablized, and rate of reducing the number of rejects and seconds, improves the quality of products.
Description
Technical field
The invention belongs to the technical field of forming materials processing, relate to forming materials mould structure.More specifically, the present invention relates to a kind of BMC mould.In addition, the invention still further relates to the moulding process of this mould.
Background technology
BMC is a kind of thermosets, it is mixed with various inert fill material, multifilament reinforcing material, catalyst, stabilizing agent and pigment, form a kind of composite gluing for compression moulding, this material glass fiber accounts for 10 ~ 30%, the general 6 ~ 12mm of fibre length; In particular cases, for meeting mechanical property, fibre length is to 25mm.
At present, the BMC moulding process of more than 90% adopts extruded, and the moulding process of prior art is wasted time and energy, and production efficiency is low, and percent defective is high, and Product Precision does not reach instructions for use.
Summary of the invention
The invention provides a kind of BMC mould, its objective is the injection molding realizing BMC.
To achieve these goals, the technical scheme that the present invention takes is:
BMC mould of the present invention, comprises fixed half and moving half; Around cast cover on described cover half, cooling mold insert is set.
The panel of described cover half arranges feed nozzle.
The part of described mould arranges heating bar.The part of described mould is one or more in side direction forming part, the shaping mold insert of dynamic model and the dynamic model profiled member fixed head on the shaping mold insert of cover half on cover half, cover half profiled member fixed head, dynamic model.
Between dynamic model side's parallels and dynamic model profiled member fixed head, dynamic model thermal insulation board is set.Between described cover half profiled member fixed head and cover half panel, cover half thermal insulation board is set.
Set temperature sensor on described fixed half and moving half; Described mould set temperature control system; Described temperature sensor is connected with described temperature control system by signal circuit.
In order to realize the goal of the invention identical with technique scheme, present invention also offers the moulding process of above-described BMC mould, this molding process is:
Matched moulds, penetrates platform and advances, injection moulding, pressurize, and penetrate platform and retreat, screw rod transmission, measure mixed material, be heating and curing, die sinking, ejects shaped article, enters subsequent work circulation.
Under injection moulding duty, described BMC temperature is before the forming 30 ~ 35 DEG C.
Under injection moulding duty, the temperature of described mould in forming materials region is 130 ~ 170 DEG C.
The present invention adopts technique scheme, by carrying out structure improvement to running gate system, temperature control system, formation system, gas extraction system, effectively controlling the forming temperature of BMC, realizing the injection mo(u)lding of BMC; Improve shaping production efficiency; Product size is stablized, and rate of reducing the number of rejects and seconds, improves the quality of products.
Accompanying drawing explanation
Mark brief description in content shown in accompanying drawing and figure is as follows:
Fig. 1 is the schematic perspective view of forming die structure of the present invention, the closure state that mould is in, and dynamic model, cover half are fitted completely;
Fig. 2 is the A-A sectional view shown in Fig. 1;
Fig. 3 is the B-B sectional view shown in Fig. 1;
Fig. 4 is the schematic diagram that mould in Fig. 1 is in die opening state;
Fig. 5 is mould course of work block diagram of the present invention.
Be labeled as in figure:
1, feed nozzle, 2, anti-flash mold insert, 3, cover half thermal insulation board, 4, cast cover, 5, cover half profiled member fixed head, 6, side direction forming part, 7, Angle Pin, 8, the shaping mold insert of dynamic model, 9, thimble, 10, heating bar, 11, dynamic model thermal insulation board, 12, thimble panel, 13, Ejector Retainer Plate, 14, temperature sensor, 15, cooling mold insert, 16, the shaping mold insert of cover half, 17, dynamic model profiled member fixed head, 18, shaped article.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technical scheme.
Structure is as shown in Figures 1 to 4 BMC mould provided by the present invention, is the mould adopting injection mo(u)lding, comprises fixed half and moving half.BMC mould is used for the manufacture of the products such as shaping household electrical appliances are automatically controlled, automobile lamp.This mould is arranged on special BMC injection molding machine, and material is filled into mould by injector.Fig. 1 is its appearance schematic diagram.
In order to overcome prior art Problems existing and defect, realizing the goal of the invention of the injection molding of BMC, taking following technical scheme:
As shown in Figure 2, BMC mould of the present invention, the cast on described cover half arranges cooling mold insert 15 around overlapping 4.
The present invention changes the forming method of BMC, by the injection molded BMC improved, improves shaping efficiency, reduces costs and ensure product quality.
Cast cover 4 devises cooling structure: cover half upper cover designs cooling water channel (namely cooling mold insert 15) around, ensures that material temperature before being filled into mold cavity controls within 30 ~ 35 DEG C.Before material reaches die cavity, ensure that the temperature of material controls, at 30 ~ 35 DEG C, to prevent it from solidifying.
Running gate system arranges feed nozzle 1 on the panel of described cover half.Material is flow in the die cavity be made up of the shaping mold insert of dynamic model 8 and the shaping mold insert 16 of cover half by feed nozzle 1, cast cover 4.
The flow dividing structure of the panel of described cover half arranges anti-flash mold insert 2, prevents not shaping material from leaking from flow dividing structure.
As shown in Figure 2, the part of described mould arranges heating bar 10.The part of mould described here is respectively side direction forming part 6, the shaping mold insert 8 of dynamic model and dynamic model profiled member fixed head 17 on the shaping mold insert of cover half 16 on cover half, cover half profiled member fixed head 5, dynamic model,, in wherein one or more, arrange as required.
It is about 130 ~ 170 DEG C that mould needs when material is filled into die cavity to reach a high temperature, correspondingly, mould increases heating bar 10 on side direction forming part 6, the shaping mold insert of dynamic model 8, the shaping mold insert 16 of cover half and cover half profiled member fixed head 5, dynamic model profiled member fixed head 17, mould is heated, reaches the forming temperature that BMC needs.
Between dynamic model side's parallels and dynamic model profiled member fixed head 17, dynamic model thermal insulation board 11 is set.Between described cover half profiled member fixed head 5 and cover half panel, cover half thermal insulation board 3 is set.
Cover half increases cover half thermal insulation board 3, on dynamic model, increases dynamic model thermal insulation board 11, its effect prevents heat from passing to the external world by template, and then prevent the loss of heat, improves capacity usage ratio, and ensure the realization of thermoforming.
The part of mould arranges temperature sensing device (temperature sensor 14), and after ensureing that material reaches die cavity, mold temperature controls at 130 ~ 170 DEG C, and material can rapid solidification.
Set temperature sensor 14 on described fixed half and moving half; Described mould set temperature control system; Described temperature sensor 14 is connected with described temperature control system by signal circuit.The temperature signal of fixed half and moving half is passed to temperature control system by temperature sensor 14.
Heating bar 10 temperature is controlled by temperature sensing device, and every mold configures a temperature control box, and temperature control system is located in temperature control box, can read concrete temperature data from temperature control box, ensures that mold temperature is in rational scope.
As shown in Figure 5, in order to realize the goal of the invention identical with technique scheme, present invention also offers the moulding process of above-described BMC mould, this molding process is:
Matched moulds, penetrates platform and advances, injection moulding, pressurize, and penetrate platform and retreat, screw rod transmission, measure mixed material, be heating and curing, die sinking, ejects shaped article, enters subsequent work circulation.
As shown in Figure 2 and Figure 3, when the shaped article 18 in die cavity is by after injection machine pressurize compacting, dynamic model moves backward under the effect of injection machine, and side direction forming part 6 is opened under the drive of Angle Pin 7 simultaneously.Side direction forming part 6 is arranged on dynamic model by guide frame, realizes opening and closed motion of side direction forming part 6.
As shown in Figure 4, after mould is opened completely, shaped article 18 produces power by injection machine and drives thimble 9 ejecting product.Thimble 9 is installed by thimble panel 12, realizes ejecting of shaped article by its driving; Thimble panel 12 is driven by the driving mechanism on Ejector Retainer Plate 13 again.
After shaped article 18 takes out, mould is closed again under the effect of injection machine, enters next mould injection moulding.Complete a molding cycle.
The concrete technological parameter of this mould is:
Under injection moulding duty, described BMC temperature is before the forming 30 ~ 35 DEG C.
Under injection moulding duty, the temperature of described mould in forming materials region is 130 ~ 170 DEG C.
BMC temperature before the forming remains on 30 ~ 35 DEG C, ensures its not shaping front mobility, prevents its hot setting, can fully be filled into shape chamber; Mould remains on 130 ~ 170 DEG C in the temperature in forming materials region, guarantees the thermoforming realizing material.
In sum, mould provided by the invention and moulding process thereof, by carrying out structure improvement to running gate system, temperature control system, formation system, gas extraction system, realize the injection mo(u)lding of BMC, the forming temperature of effective control BMC, improve shaping production efficiency, reach product size and stablize, reduce percent defective, and ensure that the requirement of product function.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (10)
1. a BMC mould, comprises fixed half and moving half, it is characterized in that: arrange cooling mold insert (15) around the cast cover (4) on described cover half.
2. according to BMC mould according to claim 1, it is characterized in that: the panel of described cover half is arranged feed nozzle (1).
3. according to BMC mould according to claim 1, it is characterized in that: heating bar (10) is set on the part of described mould.
4. according to BMC mould according to claim 3, it is characterized in that: the part of described mould is one or more in side direction forming part (6), the shaping mold insert of dynamic model (8) and the dynamic model profiled member fixed head (17) on the shaping mold insert of cover half (16) on cover half and cover half profiled member fixed head (5), dynamic model.
5. according to BMC mould according to claim 4, it is characterized in that: dynamic model thermal insulation board (11) is set between dynamic model side's parallels and dynamic model profiled member fixed head (17).
6. according to BMC mould according to claim 4, it is characterized in that: between described cover half profiled member fixed head (5) and cover half panel, cover half thermal insulation board (3) is set.
7. according to BMC mould according to claim 1, it is characterized in that: set temperature sensor (14) on described fixed half and moving half; Described mould set temperature control system; Described temperature sensor (14) is connected with described temperature control system by signal circuit.
8. be applied to the moulding process of the BMC mould according to any one of claim 1 to 7, it is characterized in that, the process of this moulding process is:
Matched moulds, penetrates platform and advances, injection moulding, pressurize, and penetrate platform and retreat, screw rod transmission, measure mixed material, be heating and curing, die sinking, ejects shaped article, enters subsequent work circulation.
9. according to the moulding process of BMC mould according to claim 8, it is characterized in that: under injection moulding duty, described BMC temperature is before the forming 30 ~ 35 DEG C.
10. according to the moulding process of BMC mould according to claim 8, it is characterized in that: under injection moulding duty, the temperature of described mould in forming materials region is 130 ~ 170 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510536425.9A CN105216223A (en) | 2015-08-27 | 2015-08-27 | A kind of BMC mould and moulding process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510536425.9A CN105216223A (en) | 2015-08-27 | 2015-08-27 | A kind of BMC mould and moulding process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105216223A true CN105216223A (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510536425.9A Pending CN105216223A (en) | 2015-08-27 | 2015-08-27 | A kind of BMC mould and moulding process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105216223A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016011A (en) * | 2017-12-18 | 2018-05-11 | 成都隶盈科技有限公司 | A kind of Novel injection mold |
| CN109228176A (en) * | 2018-10-31 | 2019-01-18 | 晋江嘉豪模具有限公司 | A kind of degradable PLA injection mold |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09123240A (en) * | 1995-11-07 | 1997-05-13 | Sony Corp | Method and device for injection molding |
| CN101518934A (en) * | 2008-10-30 | 2009-09-02 | 瑞之路(厦门)眼镜科技有限公司 | Molding process and mould for reducing internal stress in PC lens production |
| CN201511506U (en) * | 2009-10-22 | 2010-06-23 | 杨东佐 | Mould capable of realizing quick and uniform heating and cooling |
| CN104227977A (en) * | 2014-08-29 | 2014-12-24 | 宁波南方塑料模具有限公司 | Injection mold for feeding glue from bottom of sliding block |
-
2015
- 2015-08-27 CN CN201510536425.9A patent/CN105216223A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09123240A (en) * | 1995-11-07 | 1997-05-13 | Sony Corp | Method and device for injection molding |
| CN101518934A (en) * | 2008-10-30 | 2009-09-02 | 瑞之路(厦门)眼镜科技有限公司 | Molding process and mould for reducing internal stress in PC lens production |
| CN201511506U (en) * | 2009-10-22 | 2010-06-23 | 杨东佐 | Mould capable of realizing quick and uniform heating and cooling |
| CN104227977A (en) * | 2014-08-29 | 2014-12-24 | 宁波南方塑料模具有限公司 | Injection mold for feeding glue from bottom of sliding block |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016011A (en) * | 2017-12-18 | 2018-05-11 | 成都隶盈科技有限公司 | A kind of Novel injection mold |
| CN109228176A (en) * | 2018-10-31 | 2019-01-18 | 晋江嘉豪模具有限公司 | A kind of degradable PLA injection mold |
| CN109228176B (en) * | 2018-10-31 | 2024-05-28 | 晋江市嘉豪模具股份有限公司 | Degradable PLA injection mold |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160106 |