CN112721070B - Temperature control device for water-assisted injection molding of polymer blend - Google Patents
Temperature control device for water-assisted injection molding of polymer blend Download PDFInfo
- Publication number
- CN112721070B CN112721070B CN202110127248.4A CN202110127248A CN112721070B CN 112721070 B CN112721070 B CN 112721070B CN 202110127248 A CN202110127248 A CN 202110127248A CN 112721070 B CN112721070 B CN 112721070B
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- Prior art keywords
- heating
- heat storage
- water
- control device
- water tank
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Classifications
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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
- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
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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
- 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
- B29C45/7312—Construction of heating or cooling fluid flow channels
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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
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D2020/0004—Particular heat storage apparatus
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a temperature control device for polymer blend water-assisted injection molding, which comprises an operation space and a heat insulation base, wherein the operation space consists of a side plate and a top plate, the inner side surfaces of the side plate and the top plate are provided with heat insulation layers, slide blocks are arranged on the inner side surfaces of the side plate in a sliding manner, a slide rod is arranged between the two slide blocks, a shifter is arranged on the slide rod in a sliding manner, and an injection molding port is arranged below the shifter; through setting up the injection mould inside the heat preservation base and the inside heating heat storage box and the insulation can that is provided with of heat preservation base, not only can be timely the concurrent rapid cooling of can carrying out through circulating pipe.
Description
Technical Field
The invention relates to the technical field of equipment for polymer production, in particular to a temperature control device for water-assisted injection molding of a polymer blend.
Background
Water-assisted injection molding of polymer blends is increasingly used and developed in the polymer industry, and the preparation, processing, rheological properties and service behavior of multiphase multicomponent polymer materials are becoming a very hot field of polymer material science. In many applications, such as parts used under the hood of an automobile, plastic materials having high heat resistance are required. However, in general, plastic materials having high heat resistance are difficult to mold. Blending polymers is one way to obtain plastic materials with a desirable set of physical properties, such as high heat resistance and processability. In order to ensure the stability of the microscopic morphology and the surface quality of the polymer blend during the injection molding of the polymer blend, the temperature control device for the water-assisted injection molding of the existing polymer blend is cooled by natural cooling or a fan, the cooling speed and the cooling amount are difficult to ensure in the cooling mode, the quality of the polymer blend can be seriously influenced, meanwhile, the mold is directly heated by a heater in the heat preservation and heating mode, the uneven heating of the polymer blend can be caused, the quality of a product can also be influenced, meanwhile, the surface quality of the polymer blend can also be influenced by the external pressure in the production process of the polymer blend, and the surface quality of the polymer blend is not good because the existing equipment usually ignores the temperature control device.
Therefore, it is necessary to invent a temperature control device for water-assisted injection molding of polymer blends to solve the above problems.
Disclosure of Invention
The invention aims to provide a temperature control device for water-assisted injection molding of a polymer blend, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a temperature control device that supplementary moulding plastics of polymer blend water, includes operation space and heat preservation base, its characterized in that: the operation space comprises curb plate and roof, be provided with the heat preservation on curb plate and the roof medial surface, slidable mounting has the slider on the curb plate medial surface, installs the slide bar between two sliders, slidable mounting has the shifter on the slide bar, the mouth of moulding plastics is installed to the shifter below, the stopper is installed to the slider below, be fixed with the heat lamp in the middle of the roof inboard, the heat lamp right side is fixed with third temperature sensor, pressure device is installed to the roof top.
The utility model discloses a solar water heater, including heat preservation base, heating heat storage box, circulating water pipe, heating water pump, heating water tank internally mounted has a holding water tank and a heating heat storage box, heating heat storage box internally mounted has second temperature sensor, heating heat storage box sets up the inside at holding water box, be provided with the baffle in the middle of holding water box is inside, install the water service pipe on the baffle, holding water box has heating wire, first temperature sensor and level sensor through circulating water pipe connection, the heating wire is connected and is installed first converter, the gas channeling hole has been seted up at the heating water tank top, heating water tank connects and installs the moisturizing pipe, heating water tank fixes at the extension board, the landing leg is installed to holding base below, the stabilizer blade is installed to the landing leg bottom.
Preferably, the operating window has been seted up on the workspace openly, slidable mounting has the insulating glass door on the operating window, be fixed with the operation panel on the workspace right flank.
Preferably, the heating and heat storage box is filled with an aviation heat storage material, and an injection mold is fixed in the aviation heat storage material.
Preferably, heating heat storage incasement portion bottom end installs the snakelike stick of heating, the snakelike stick of heating is fixed on heating heat storage incasement wall through the fixed head, the snakelike stick of heating is connected with the second converter.
Preferably, a second temperature sensor arranged inside the heating heat storage tank is arranged above the heating serpentine rod.
The invention has the technical effects and advantages that: according to the temperature control device for water-assisted injection molding of the polymer blend, the heat-supplementing lamp and the temperature sensor are arranged in the operation space, and the heat-insulating layer is arranged on the inner wall of the operation space, so that the temperature in the operation space can be accurately controlled; through setting up the injection mould inside the heat preservation base and the inside heating heat storage box and the insulation can that is provided with of heat preservation base, not only can be timely concurrent can carry out quick cooling through circulating pipe to the rapid change injection mould surrounding the temperature of external environment that can be accurate, and then reach the polymer temperature demand of moulding plastics, adjust the pressure in the operation space through pressure device simultaneously, thereby can improve the inner structure quality and the surface quality of polymer injection moulding product.
Drawings
Fig. 1 is a schematic view of the internal structure of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a top view of the heating heat storage tank of the present invention.
Fig. 4 is a schematic view of an internal structure of the heating and heat storage tank according to the present invention.
Fig. 5 is a side view of a heating heat storage tank according to the present invention.
In the figure: the device comprises a top plate 1, an operation space 2, side plates 3, a temperature control device body 4, a heat preservation base 5, a circulating water pipe 6, support legs 7, support legs 8, a water pipe 9, a gas blowby hole 10, a support plate 11, a circulating water pump 12, a partition plate 13, a first frequency converter 14, a heating wire 15, a first temperature sensor 16, a water level sensor 17, a heating water tank 18, a water replenishing pipe 19, a heat preservation water tank 20, a second temperature sensor 21, a heating heat storage tank 22, a sliding block 23, an injection molding opening 24, a sliding rod 25, a mover 26, a heat preservation layer 27, a limiting block 28, a third temperature sensor 29, a heating lamp 30, a heat preservation glass door 31, an operation window 32, an operation table 33, an injection mold 34, an aviation heat storage material 35, a fixing head 36, a heating coil pipe 37, a second frequency converter 38 and a pressurizing device 39.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a temperature control device for water-assisted injection molding of a polymer blend, which comprises a working space 2 and a heat-insulating base 5, and is characterized in that: working space 2 comprises curb plate 3 and roof 1, be provided with heat preservation 27 on curb plate 3 and the 1 medial surface of roof, slidable mounting has slider 23 on the 3 medial surfaces of curb plate, installs slide bar 25 between two slider 23, slidable mounting has shifter 26 on the slide bar 25, the mouth 24 of moulding plastics is installed to shifter 26 below, stopper 28 is installed to slider 23 below, be fixed with heat lamp 30 in the middle of the roof 1 inboard, heat lamp 30 right side is fixed with third temperature sensor 29, pressure device 39 is installed to roof 1 top.
The inside holding water box 20 and the heating heat storage box 22 of being provided with of heat preservation base 5, the heating heat storage box 22 internally mounted has second temperature sensor 21, the heating heat storage box 22 sets up the inside at holding water box 20, be provided with baffle 13 in the middle of holding water box 20 is inside, install water service pipe 9 on the baffle 13, holding water box 20 is connected with heating water box 18 through circulating pipe 6, install circulating water pump 12 on the circulating pipe 6, 18 internally mounted of heating water box has heater strip 15, first temperature sensor 16 and level sensor 17, heater strip 15 is connected and is installed first converter 14, gas channeling hole 10 has been seted up at 18 tops of heating water box, heating water box 18 is connected and is installed moisturizing pipe 19, heating water box 18 is fixed at extension board 11, landing leg 7 is installed to 5 below of heat preservation base, stabilizer blade 8 is installed to landing leg 7 bottom.
Further, in the above technical solution, an operation window 32 is opened on the front surface of the operation space 2, a heat insulating glass door 31 is slidably installed on the operation window 32, and an operation table 33 is fixed on the right side surface of the operation space 2.
Further, in the above technical solution, the heating and heat storage tank 22 is filled with an aviation heat storage material 35, and an injection mold 34 is fixed inside the aviation heat storage material 35.
Further, in the above technical scheme, heating serpentine rod 37 is installed at the inside bottom end of heating heat storage box 22, heating serpentine rod 37 is fixed on heating heat storage box 22 inner wall through fixed head 36, heating serpentine rod 37 is connected with second converter 38.
Further, in the above technical solution, the second temperature sensor 21 installed inside the heating and heat storage tank 22 is disposed above the heating serpentine rod 37.
The working principle of the invention is as follows: the injection mould is placed in a heating circulation box and filled with an aviation heat storage material, a polymer blending water guide pipe is connected to a shifter, the polymer blending water guide pipe is moved back and forth and injection molding of the polymer blending water is controlled to inject the polymer blending water into the injection mould, meanwhile, temperature sensors arranged in an operation space, a heating heat storage box and a heating water tank are used for monitoring respective temperature change in real time, space temperature change inside the operation space is controlled by starting or closing a heating lamp, the temperature of the aviation heat storage material is controlled by controlling starting or closing of a heating snake-shaped rod so as to control temperature change of injection molding slurry, meanwhile, the water temperature in a heat preservation water tank is adjusted through a circulating water pipe, the temperature change speed in the heating heat storage water tank is slowed down or accelerated, the temperature change of the environment around the injection mould can be changed rapidly, the requirement of injection molding on the temperature change speed is met, and the quality of products is improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions and improvements to part of the technical features of the foregoing embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a temperature control device that supplementary moulding plastics of polymer blend water, includes temperature control device body (4), operation space (2) and heat preservation base (5), its characterized in that: operation space (2) comprise curb plate (3) and roof (1), be provided with heat preservation (27) on curb plate (3) and roof (1) medial surface, slidable mounting has slider (23) on curb plate (3) medial surface, installs slide bar (25) between two slider (23), slidable mounting has shifter (26) on slide bar (25), mouth (24) of moulding plastics are installed to shifter (26) below, stopper (28) are installed to slider (23) below, be fixed with heat lamp (30) in the middle of roof (1) inboard, heat lamp (30) right side is fixed with third temperature sensor (29), pressure device (39) are installed to roof (1) top.
Heat preservation base (5) inside holding water tank (20) and heating heat storage box (22) of being provided with, heating heat storage box (22) internally mounted has second temperature sensor (21), heating heat storage box (22) sets up the inside at holding water tank (20), be provided with baffle (13) in the middle of holding water tank (20) is inside, install water service pipe (9) on baffle (13), holding water tank (20) are connected with heating water tank (18) through circulating pipe (6), install circulating water pump (12) on circulating pipe (6), heating water tank (18) internally mounted has heater strip (15), first temperature sensor (16) and level sensor (17), heater strip (15) are connected and are installed first converter (14), scurrying gas pocket (10) have been seted up at heating water tank (18) top, heating water tank (18) are connected and are installed moisturizing pipe (19), heating water tank (18) are fixed in extension board (11), holding base (5) below is installed, stabilizer blade (8) are installed to stabilizer blade (7) bottom.
2. The temperature control device for water-assisted injection molding of polymer blend according to claim 1, wherein: operation window (32) have openly been seted up in operation space (2), slidable mounting has insulating glass door (31) on operation window (32), be fixed with operation panel (33) on operation space (2) right flank.
3. The temperature control device for water-assisted injection molding of polymer blend according to claim 1, wherein: the heating and heat storage tank (22) is filled with aviation heat storage materials (35), and injection molds (34) are fixed inside the aviation heat storage materials (35).
4. The temperature control device for water-assisted injection molding of polymer blend according to claim 1, wherein: heating snake-shaped stick (37) are installed to the inside bottom end of heating heat storage case (22), heating snake-shaped stick (37) are fixed on heating heat storage case (22) inner wall through fixed head (36), heating snake-shaped stick (37) are connected with second converter (38).
5. The temperature control device for water-assisted injection molding of polymer blend according to claim 1, wherein: and a second temperature sensor (21) arranged in the heating heat storage tank (22) is arranged above the heating serpentine rod (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110127248.4A CN112721070B (en) | 2021-01-29 | 2021-01-29 | Temperature control device for water-assisted injection molding of polymer blend |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110127248.4A CN112721070B (en) | 2021-01-29 | 2021-01-29 | Temperature control device for water-assisted injection molding of polymer blend |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112721070A CN112721070A (en) | 2021-04-30 |
| CN112721070B true CN112721070B (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110127248.4A Active CN112721070B (en) | 2021-01-29 | 2021-01-29 | Temperature control device for water-assisted injection molding of polymer blend |
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Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2340772A1 (en) * | 1973-08-11 | 1975-02-27 | Schloemann Siemag Ag | METHOD AND EQUIPMENT FOR FILLING A MOLD WITH PLASTICIZED PLASTIC CONTAINING DRYING AGENTS |
| JPS58116137A (en) * | 1981-12-29 | 1983-07-11 | Toyoda Gosei Co Ltd | Structure for attaching mold of injection molder |
| SU1395520A1 (en) * | 1986-06-26 | 1988-05-15 | Предприятие П/Я Р-6594 | Hot-channel mould for making thermoplastic articles |
| AUPP403398A0 (en) * | 1998-06-11 | 1998-07-02 | James, Malcolm Barry | Temperature control method and apparatus |
| JP5069503B2 (en) * | 2007-06-26 | 2012-11-07 | 三菱重工プラスチックテクノロジー株式会社 | Injection molding system, computer program, injection molding method, injection molding machine |
| CN203680815U (en) * | 2014-01-23 | 2014-07-02 | 华南理工大学 | Water-assisted mixing extrusion and injection molding device for polymer nanocomposites |
| CN204471739U (en) * | 2015-02-04 | 2015-07-15 | 马鞍山市科宏塑业科技实业发展有限公司 | Plastic injection moulding mould |
| CN206426359U (en) * | 2016-12-31 | 2017-08-22 | 赫比（上海）家用电器产品有限公司 | A kind of Intelligent bracelet injection-moulding device |
| CN206663733U (en) * | 2017-04-05 | 2017-11-24 | 贾冰琼 | A kind of square dies heater |
| CN208543724U (en) * | 2018-06-19 | 2019-02-26 | 湖州倍格曼新材料股份有限公司 | A kind of injecting glue and its injecting glue molding equipment |
| CN209454112U (en) * | 2019-01-22 | 2019-10-01 | 深圳市富高达机械设备有限公司 | One kind being used for mold constant temperature heating water dispenser |
| CN110253837B (en) * | 2019-07-23 | 2021-03-23 | 山东劳动职业技术学院（山东劳动技师学院） | Electromechanical integrated die capable of adjusting temperature |
| CN111531801A (en) * | 2020-04-03 | 2020-08-14 | 建达电气有限公司 | Fuse insulating housing forming die |
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2021
- 2021-01-29 CN CN202110127248.4A patent/CN112721070B/en active Active
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