CN114261079A - Preparation method of PC plastic material lamp housing of G40 standard E12 lamp cap - Google Patents
Preparation method of PC plastic material lamp housing of G40 standard E12 lamp cap Download PDFInfo
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- CN114261079A CN114261079A CN202210041251.9A CN202210041251A CN114261079A CN 114261079 A CN114261079 A CN 114261079A CN 202210041251 A CN202210041251 A CN 202210041251A CN 114261079 A CN114261079 A CN 114261079A
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- lamp
- station
- plastic material
- lamp housing
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- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- 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
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- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/0005—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor characterised by the material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
-
- 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
-
- 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
- B29C2945/76655—Location of control
- B29C2945/76732—Mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/747—Lightning equipment
- B29L2031/7472—Lampshades
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of lighting lamps, in particular to a preparation method of a PC plastic material lamp housing of a G40 specification E12 lamp holder, which comprises the following steps: s1: injecting the PC plastic material into a special mold suitable for the PC plastic material, and performing injection molding on the PC plastic material to form a tubular lamp blank; s2: the injection molding station is used for specially designing a special mold and opening the special mold, and the tubular lamp blank is taken out from the mold core rod; s3: heating the tubular lamp blank again until the PC material reaches an ideal soft degree, injecting gas into each station, and performing expansion molding to obtain a lamp shell; s4: and transferring the lamp housing to a demolding station, and detaching the lamp housing from the mold by the demolding station. According to the invention, the PC plastic material is adopted to perform injection molding to form the tubular lamp blank, and the injection molding, the blow molding and the demolding procedures are simultaneously performed on the mold, so that the produced lamp shell has the characteristics of high temperature resistance, high transparency and difficulty in damage, the service life of the lamp shell exceeds that of the traditional lamp bulb by more than one time, the quality of the lamp bulb is improved, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of lighting lamps, in particular to a preparation method of a PC plastic material lamp housing of a G40 specification E12 lamp holder.
Background
A bulb is a lighting device that emits light and generates heat by electric energy, and the most common function of a bulb is lighting, which plays an important role in daily life of people.
The lamp shell of the traditional LED bulb is generally made of glass, PET and other plastic materials, the LED bulb made of the glass materials is fragile and cannot resist high and low temperatures, and potential safety hazards exist in the process of damage and follow-up short circuit easily caused. The LED bulb made of PET and other plastic materials is easy to produce, but is easy to age, discolor, crack, damage and the like, and the transparency of the bulb is seriously reduced along with the time. Especially, the high-power bulb product is easy to be affected by temperature and seriously deformed, and the joint part of the bulb product and the accessory is loosened and is not waterproof, so that serious accidents such as fire disasters and the like can be caused.
At present, the lamp shell is made of PC plastic materials, and the problems which cannot be solved exist, the PC plastic materials are relatively hard in characteristics, and the made bulb shell is more transparent and is not easy to damage. The technology for manufacturing the small-caliber large-spherical-diameter bulb with the lamp shell, in particular the G40 specification E12 lamp cap, by using the traditional method has the existing technical difficulty.
Disclosure of Invention
The invention aims to provide a method for preparing a PC plastic material lamp housing of a G40 standard E12 lamp cap aiming at the defects in the prior art.
The purpose of the invention is realized by the following technical scheme: a preparation method of a PC plastic material lamp housing of a G40 standard E12 lamp holder comprises the following steps:
s1: injecting the PC plastic material into a special mold suitable for the PC plastic material, and performing injection molding on the PC plastic material to form a tubular lamp blank;
s2: designing a special mold in the injection molding station, and taking out the tubular lamp blank from a mold core rod of the injection molding station;
s3: heating the tubular lamp blank again until the PC material reaches an ideal soft degree, injecting gas into each station, and performing expansion molding to obtain a lamp shell;
s4: and transferring the lamp housing to a demolding station, and detaching the lamp housing from the mold by the demolding station.
The invention is further set that the material of the die is die steel made of high-standard special materials.
The invention is further provided that the injection molding station, the blowing station and the demolding station are integrally formed equipment.
The invention is further configured that in step S1, the injection molding temperature of the injection molding station is 230-300 degrees celsius.
The present invention is further configured such that the injection molding station of the mold is cooled prior to step S1.
The present invention is further configured such that the blow station of the mold is cooled prior to step S3.
The invention is further set that the PC plastic material comprises polycarbonate, halogen-free flame-retardant master batch, ultraviolet absorbent, anti-dripping agent and high-temperature-resistant antioxidant; the weight portions are as follows: 50-95 parts of polycarbonate resin, 1-20 parts of halogen-free flame-retardant master batch, 0.5-5 parts of ultraviolet absorbent, 1-3 parts of toughening agent, 0.5-5 parts of high-temperature resistant agent, 0.1-1.5 parts of antioxidant and 0.2-1.3 parts of light stabilizer.
The invention is further configured that the halogen-free flame retardant is an aromatic sulfonate flame retardant.
The invention is further configured that the toughening agent is MBS resin.
The invention has the beneficial effects that: according to the invention, the PC plastic material is adopted to perform injection molding to form the tubular lamp blank, and simultaneously injection molding, blow molding and demolding are performed on the mold, so that the produced lamp shell has the characteristics of high temperature resistance, high transparency and difficulty in damage, and the service life of the lamp shell is more than one time longer than that of the traditional lamp bulb.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of a conventional G40 gauge large caliber lamp envelope of the present invention;
FIG. 2 is a schematic view of the lamp envelope of the G40 standard E12 small caliber lamp cap of the present invention;
Detailed Description
The invention is further described with reference to the following examples.
The preparation method of the PC plastic material lamp housing of the G40 standard E12 lamp holder in the embodiment includes the following steps:
s1: injecting the PC plastic material into a special mold suitable for the PC plastic material, and performing injection molding on the PC plastic material to form a tubular lamp blank;
s2: designing a special mold in the injection molding station, and taking out the tubular lamp blank from a mold core rod of the injection molding station;
s3: heating the tubular lamp blank again until the PC material reaches an ideal soft degree, injecting gas into each station, and performing expansion molding to obtain a lamp shell;
s4: and transferring the lamp housing to a demolding station, and detaching the lamp housing from the mold by the demolding station.
Specifically, in the preparation method of the PC plastic material lamp housing of the G40 standard E12 lamp holder, the PC plastic material is used for injection molding to form a tubular lamp blank, and the injection molding, the blow molding and the demolding process are simultaneously performed on the mold, so that the produced lamp housing has the characteristics of high temperature resistance, high transparency and difficulty in damage, and the service life of the lamp housing is more than one time longer than that of the traditional lamp bulb.
In the preparation method of the PC plastic lamp housing with the G40 standard E12 lamp holder, the mold is made of mold steel made of high-standard special materials. Through the arrangement, the mold material is taken out for heat treatment processing after rough processing of the existing product cavity, and then taken back for precision processing, so that the mold is assembled, the service life of the mold is longer in the use process, and the temperature is more uniform, thereby achieving the production stability.
In the preparation method of the PC plastic material lamp housing of the G40 standard E12 lamp holder, the injection molding station, the blowing station and the demolding station are integrally formed. Through the arrangement, the production efficiency of the lamp housing can be effectively improved.
In the method for manufacturing the PC plastic lamp housing of the G40 standard E12 lamp holder, in step S1, the injection molding temperature of the injection molding station is 230-300 ℃. The performance of the lamp housing produced by the arrangement is better.
In the method for manufacturing the PC plastic lamp housing of the G40 standard E12 lamp cap according to the embodiment, before the step S1, an injection molding station of a mold is cooled. The performance of the lamp housing produced by the arrangement is better.
In the method for manufacturing the PC plastic lamp housing with the G40 standard E12 lamp cap according to the embodiment, before the step S3, a blowing station of a mold is cooled. The performance of the lamp housing produced by the arrangement is better.
In the preparation method of the lamp housing made of the PC plastic material with the G40 standard E12 lamp holder, the PC plastic material includes polycarbonate, a halogen-free flame retardant masterbatch, an ultraviolet absorber, an anti-dripping agent and a high temperature resistant antioxidant; the weight portions are as follows: 50-95 parts of polycarbonate resin, 1-20 parts of halogen-free flame-retardant master batch, 0.5-5 parts of ultraviolet absorbent, 1-3 parts of toughening agent, 0.5-5 parts of high-temperature resistant agent, 0.1-1.5 parts of antioxidant and 0.2-1.3 parts of light stabilizer. In the preparation method of the PC plastic material lamp housing with the G40 standard E12 lamp holder, the halogen-free flame retardant is an aromatic sulfonate flame retardant. In the preparation method of the PC plastic lamp housing of the G40 standard E12 lamp holder, the toughening agent is MBS resin.
Specifically, according to the preparation method of the PC plastic material lamp housing of the G40 standard E12 lamp holder, the PC plastic material has high temperature resistance, ultraviolet resistance and flame retardant effects, and the lamp can be prevented from color change and aging and falling off outdoors for 3 years.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A preparation method of a PC plastic material lamp housing of a G40 specification E12 lamp holder is characterized in that: the method comprises the following steps:
s1: injecting the PC plastic material into a special mold suitable for the PC plastic material, and performing injection molding on the PC plastic material to form a tubular lamp blank;
s2: designing a special mold in the injection molding station, and taking out the tubular lamp blank from a mold core rod of the injection molding station;
s3: heating the tubular lamp blank again until the PC material reaches the ideal soft degree, injecting instant gas through each station, and expanding and forming to form a lamp shell;
s4: and transferring the lamp housing to a demolding station, and detaching the lamp housing from the mold by the demolding station.
2. The method of claim 1, wherein the PC plastic lamp housing of G40 standard E12 lamp cap is prepared by the following steps: the die is made of die steel made of high-standard special materials.
3. The method of claim 1, wherein the PC plastic lamp housing of G40 standard E12 lamp cap is prepared by the following steps: the injection molding station, the blowing station and the demolding station are integrally formed equipment.
4. The method of claim 1, wherein the PC plastic lamp housing of G40 standard E12 lamp cap is prepared by the following steps: in step S1, the injection molding temperature of the injection station is 230-300 degrees Celsius.
5. The method of claim 1, wherein the PC plastic lamp housing of G40 standard E12 lamp cap is prepared by the following steps: before step S1, the injection station of the mold is cooled.
6. The method of claim 1, wherein the PC plastic lamp housing of G40 standard E12 lamp cap is prepared by the following steps: before step S3, the blow station of the mold is cooled.
7. The method of claim 1, wherein the PC plastic lamp housing of G40 standard E12 lamp cap is prepared by the following steps: the PC plastic material comprises polycarbonate, halogen-free flame-retardant master batch, an ultraviolet absorbent, an anti-dripping agent and a high-temperature-resistant antioxidant; the weight portions are as follows: 50-95 parts of polycarbonate resin, 1-20 parts of halogen-free flame-retardant master batch, 0.5-5 parts of ultraviolet absorbent, 1-3 parts of toughening agent, 0.5-5 parts of high-temperature resistant agent, 0.1-1.5 parts of antioxidant and 0.2-1.3 parts of light stabilizer.
8. The method of claim 7, wherein the PC plastic lamp housing of G40 standard E12 lamp cap is prepared by the following steps: the halogen-free flame retardant is aromatic sulfonate flame retardant.
9. The method of claim 7, wherein the PC plastic lamp housing of G40 standard E12 lamp cap is prepared by the following steps: the toughening agent is MBS resin.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021109784866 | 2021-08-25 | ||
| CN202110978486.6A CN113799370A (en) | 2021-08-25 | 2021-08-25 | Preparation method of PC lamp housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114261079A true CN114261079A (en) | 2022-04-01 |
Family
ID=78941744
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110978486.6A Withdrawn CN113799370A (en) | 2021-08-25 | 2021-08-25 | Preparation method of PC lamp housing |
| CN202210041251.9A Pending CN114261079A (en) | 2021-08-25 | 2022-01-14 | Preparation method of PC plastic material lamp housing of G40 standard E12 lamp cap |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110978486.6A Withdrawn CN113799370A (en) | 2021-08-25 | 2021-08-25 | Preparation method of PC lamp housing |
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| Country | Link |
|---|---|
| CN (2) | CN113799370A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1198125A (en) * | 1996-07-31 | 1998-11-04 | 株式会社青木固研究所 | Method of injection drawing and blow molding hollow products |
| CN101062996A (en) * | 2006-04-30 | 2007-10-31 | 佛山市顺德区高怡新塑料有限公司 | Halogen-free flame-proof weather-resisting transparent polycarbonate composition |
| CN101927562A (en) * | 2009-06-18 | 2010-12-29 | 上丰灯泡(深圳)有限公司 | Method for making lamp housing |
| CN106696236A (en) * | 2015-07-25 | 2017-05-24 | 宁波公牛光电科技有限公司 | LED bulb lamp shell molding process and blow molding mold and device thereof |
-
2021
- 2021-08-25 CN CN202110978486.6A patent/CN113799370A/en not_active Withdrawn
-
2022
- 2022-01-14 CN CN202210041251.9A patent/CN114261079A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1198125A (en) * | 1996-07-31 | 1998-11-04 | 株式会社青木固研究所 | Method of injection drawing and blow molding hollow products |
| CN101062996A (en) * | 2006-04-30 | 2007-10-31 | 佛山市顺德区高怡新塑料有限公司 | Halogen-free flame-proof weather-resisting transparent polycarbonate composition |
| CN101927562A (en) * | 2009-06-18 | 2010-12-29 | 上丰灯泡(深圳)有限公司 | Method for making lamp housing |
| CN106696236A (en) * | 2015-07-25 | 2017-05-24 | 宁波公牛光电科技有限公司 | LED bulb lamp shell molding process and blow molding mold and device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113799370A (en) | 2021-12-17 |
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