CN203282628U - Plastic pipe die - Google Patents
Plastic pipe die Download PDFInfo
- Publication number
- CN203282628U CN203282628U CN2013202530018U CN201320253001U CN203282628U CN 203282628 U CN203282628 U CN 203282628U CN 2013202530018 U CN2013202530018 U CN 2013202530018U CN 201320253001 U CN201320253001 U CN 201320253001U CN 203282628 U CN203282628 U CN 203282628U
- Authority
- CN
- China
- Prior art keywords
- die
- plastic pipe
- core rod
- mould
- plug
- 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.)
- Expired - Fee Related
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
- B29C48/865—Heating
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model belongs to the technical field of die design, and particularly relates to a plastic pipe die, which comprises a die holder and a caliber die that are mutually connected and have a material cavity inside; a core rod is arranged in the material cavity; a tapered part for flow splitting is formed at one end, positioned in the die holder, of the core rod; a material inlet corresponding to the top end of the tapered part is formed in the die holder; two blind holes for allowing water to pass are arranged in the core rod; end parts of the blind holes are communicated; multiple electromagnetic heating devices and a detection device for detecting temperature of the caliber die are arranged on the outer side of the caliber die. The plastic pipe die disclosed by the utility model can heat the core rod to the required temperature within shorter time, so that the machine operation time is greatly reduced; meanwhile, the temperature of the core rod can be accurately kept within a certain range, so that the flowing stability of molten plastics in an extrusion die can be guaranteed, the inner surface of a manufactured plastic pipe after size calibration is smooth, the mechanical property is good, and the flow resistance is small.
Description
Technical field
The utility model belongs to the Design of Dies technical field, is specifically related to a kind of plastic pipe die.
Background technology
The continuous extrusion process of plastic pipe be generally be in the viscosity flow state plastics under HTHP through having the mouth mould of specific sectional shape, then cooling and shaping at a lower temperature.Generally, the plug of the continuous extrusion processing mold of the plastic pipe mainly mode such as the convection current by the heat conduction of small bore syndeton, internal cavities Air and heat radiation conducts heat, this has caused the deficiency of two aspects: the one, and during start, plug is longer preheating time, need two hours even for more time, greatly reduce operating efficiency; The 2nd, the plug temperature is low, skewness, and the melten gel flowing instability makes the plastic pipe inner surface easily wrinkling.Therefore, need to provide a kind of extrusion die, can directly to plug, heat, shorten the available machine time, and can guarantee that the bulk temperature of plug is even.
Summary of the invention
In order to overcome above shortcomings part in prior art, the purpose of this utility model is to provide a kind of plastic pipe die, plug can be heated to needed temperature within a short period of time, greatly shortened the available machine time, and the bulk temperature of keeping plug is even, guarantee the stationarity that the inner molten plastic of extrusion die flows, the plastic pipe inner surface that manufacturing is obtained is smooth.
In order to reach above-mentioned purpose, the utility model adopts following concrete technical scheme:
A kind of plastic pipe die, comprise and interconnecting and the die holder in interior band material chamber and a mouthful mould, described material chamber is built-in with plug, the end that this plug is in die holder forms the tapering of shunting use, have the charging aperture corresponding with the top in tapering on described die holder, be provided with the blind hole that two water flowings are used in described plug, the end of blind hole communicates; The arranged outside of described mouthful of mould has several electromagnetic heaters and detects the checkout gear of die temperature.
Described electromagnetic heater comprises a solenoid that is located at mouthful mould outside, is provided with mica sheet and adiabatic cotton between solenoid and mouth mould outer wall.
Described solenoid is four, and ring is located at all sides of mouthful mould.
Compared with prior art, the utlity model has following outstanding advantages and effect:
The utility model plastic pipe die, plug can be heated to needed temperature within a short period of time, greatly shortened the available machine time, simultaneously, the temperature of plug accurately can be maintained within a certain range, guarantee the stationarity that the inner molten plastic of extrusion die flows, plastic tube embryo inner surface after sizing that manufacturing is obtained is smooth, good mechanical property, resistance to water-flow is little.
Description of drawings
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
The specific embodiment
As shown in Figure 1-2, a kind of plastic pipe die, comprise and interconnecting and die holder 1 and mouthful mould 4 in interior band material chamber 5, described material chamber 5 is built-in with plug 2, the end that this plug 2 is in die holder forms the tapering 21 of shunting use, have the charging aperture corresponding with the top in tapering 21 11 on described die holder 1, be provided with the convection current that blind hole 22(blind hole that two water flowings use is used for hot-air in described plug 2), the end of blind hole 22 communicate (make two blind hole conductings by offer connectivity slot in tapering, be provided with plug 10 on connectivity slot); The arranged outside of described mouthful of mould 4 has several electromagnetic heaters and detects the checkout gear of die temperature, and checkout gear records the temperature of mouthful mould 4 less than certain value, and electromagnetic heater counterpart mould heats.
Described electromagnetic heater comprises a solenoid 8 that is located at mouthful mould outside, is provided with mica sheet 6,9 and adiabatic cotton 7 between solenoid 8 and mouth mould 4 outer walls.
Described solenoid 8 is four, and ring is located at all sides of mouthful mould 4.
It should be noted that finally: above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (3)
1. plastic pipe die, it is characterized in that: comprise and interconnecting and the die holder in interior band material chamber and a mouthful mould, described material chamber is built-in with plug, the end that this plug is in die holder forms the tapering of shunting use, have the charging aperture corresponding with the top in tapering on described die holder, be provided with the blind hole that two water flowings are used in described plug, the end of blind hole communicates; The arranged outside of described mouthful of mould has several electromagnetic heaters and detects the checkout gear of die temperature.
2. a kind of plastic pipe die according to claim 1 is characterized in that: described electromagnetic heater comprises and is located at mouthful solenoid in the mould outside, is provided with mica sheet and adiabatic cotton between solenoid and mouth mould outer wall.
3. a kind of plastic pipe die according to claim 2, it is characterized in that: described solenoid is four, ring is located at all sides of mouthful mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202530018U CN203282628U (en) | 2013-05-12 | 2013-05-12 | Plastic pipe die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202530018U CN203282628U (en) | 2013-05-12 | 2013-05-12 | Plastic pipe die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203282628U true CN203282628U (en) | 2013-11-13 |
Family
ID=49539007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202530018U Expired - Fee Related CN203282628U (en) | 2013-05-12 | 2013-05-12 | Plastic pipe die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203282628U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105773947A (en) * | 2014-12-22 | 2016-07-20 | 上海金湖挤出设备有限公司 | Efficient internal pressing type PVC pipe machine head |
| CN108995176A (en) * | 2018-07-25 | 2018-12-14 | 安徽泰达汽车零部件有限公司 | It is a kind of to use the molding rubber tube of multi-cavity extrusion equipment |
-
2013
- 2013-05-12 CN CN2013202530018U patent/CN203282628U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105773947A (en) * | 2014-12-22 | 2016-07-20 | 上海金湖挤出设备有限公司 | Efficient internal pressing type PVC pipe machine head |
| CN108995176A (en) * | 2018-07-25 | 2018-12-14 | 安徽泰达汽车零部件有限公司 | It is a kind of to use the molding rubber tube of multi-cavity extrusion equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20140512 |