CN201359138Y - Three-way switch valve with hot runner heaters - Google Patents
Three-way switch valve with hot runner heaters Download PDFInfo
- Publication number
- CN201359138Y CN201359138Y CNU2009200518443U CN200920051844U CN201359138Y CN 201359138 Y CN201359138 Y CN 201359138Y CN U2009200518443 U CNU2009200518443 U CN U2009200518443U CN 200920051844 U CN200920051844 U CN 200920051844U CN 201359138 Y CN201359138 Y CN 201359138Y
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- Prior art keywords
- over valve
- way change
- hot runner
- heater
- switch valve
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- 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 - Lifetime
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Abstract
The utility model provides a three-way switch valve provided with hot runner heaters. The three-way switch valve is characterized in that on the basis that the prior heating method is reserved and the connection method of the three-way switch valve, a plasticizing cavity, an injection cavity and an injection nozzle is not changed, grooves are formed on the two end surfaces of the three-way switch valve; and a hot runner heater is arranged in each groove. In the utility model, the hot runner heating technology is applied to the three-way switch valve based on the prior heating method of an injection moulding machine. The utility model can ensure rapid temperature rise of the three-way switch valve, thereby greatly reducing the heating time for injection moulding after the injection molding machine is switched on, improving the production efficiency, and better solving the problem of a three-way switch valve of a traditional injection molding machine, such as slow temperature rise.
Description
Technical field
The utility model relates to injection and plastifies the injection moulding machine that carries out simultaneously, particularly a kind of three-way change-over valve with the hot runner heater.
Background technique
Molding and forming is the main forming method of plastics, be characterized in the manufacturing efficiency height, strong to various processing of plastic adaptability, can forming shape complexity, accurate in size injection-molded article, be widely used in every field such as national defense industry, aviation, traffic, electric, mechanical, building, agricultural, culture and education, health, commodity.Its production process is: the solid plastics with granular (or powdery) plastifies (comprising heating, compacting, mixing process) earlier, become the good melt of plasticity with uniform density, viscosity and component, make this melt possess certain pressure and flow velocity again, injection enters shaping die, behind the melt cooling and shaping, obtain the plastic article consistent with the mold cavity shape.In order to make plastic melt keep good flowability, all there are heating and temperature control apparatus in the place of melt process.At present, what injection volume was big, manufacturing efficiency is high is the injection moulding machine that injection and plasticizing are carried out simultaneously, its plasticizing and function of injection are finished by independent barrel respectively, the design of Structural Parameters of critical piece separately can mutual restriction, and plasticizing chamber, injecting cavity, die cavity are realized connecting by a three-way change-over valve.During injection, injecting cavity and the pathway closure that plastifies the chamber are communicated with die cavity, and plastic melt enters die cavity with certain pressure and flow velocity from injecting cavity, and simultaneously, the plastics in plasticizing chamber plastify; After injection was finished, the pathway closure of injecting cavity and die cavity was expelled to the melt cooling and shaping of die cavity, and injection cylinder retreats, and injecting cavity is communicated with the plasticizing chamber, and the plastic melt of plasticizing enters injecting cavity from plastifying the chamber, gets ready for injecting next time.Like this, make the demoulding behind the melt cooling and shaping be expelled to die cavity, such process ceaselessly circulates and carries out.
The injection moulding machine that injection and plasticizing are carried out simultaneously, per minute can be produced hundreds and thousands of plastic article, and therefore, the postrun per minute of starting shooting all is worth treasuring.The present this injection molding machine of producing, defective of ubiquity: three-way change-over valve heat temperature raising speed is slow.When the temperature of plasticizing charging barrel and injection nozzle reached the temperature of appointment already, the temperature of three-way change-over valve also slowly rose not come up, and made after the injection moulding machine start, prepared the time lengthening of molding and forming, influenced manufacturing efficiency.Its reason is: three-way change-over valve is to rely on lock ring in the circular mica heater heats of its two ends cylindrical, and the threeway switch site has reduced the surperficial heating area of three-way change-over valve.
The model utility content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art with not enough, provide a kind of intensification rapidly with the three-way change-over valve of hot runner heater, the utility model is on the basis of original injection moulding machine mode of heating, the hot runner heating technology is applied to three-way change-over valve, shorten the injection moulding machine start and prepared the time of production, and then improved manufacturing efficiency effectively.
The purpose of this utility model is achieved through the following technical solutions: a kind of three-way change-over valve with hot runner heater, comprise three-way change-over valve, 2 circular mica heaters and 4 circular mica heater holders, respectively be fastened with 2 circular mica heated seats on the two ends cylindrical of three-way change-over valve by screw, each circular mica heater is the cylindrical by 2 circular mica heater holders and screw lock ring three-way change-over valve all, two end faces of described three-way change-over valve all have groove, be provided with the hot runner heater in each groove, like this, the all sites that every hot runner heater contacts with groove conducts heat to three-way change-over valve, and conducts heat to the adjacent component of described three-way change-over valve in the export-oriented position of every hot runner heater.
Preferably, described hot runner heater is the mold hot flow heater, and more preferably: described mold hot flow heater is a high power die hot runner heater.
In order to increase length and the area of hot runner heater to effective heating of groove to greatest extent, the cross section of described groove is preferably rectangle, and corresponding, the cross section of hot runner heater is preferably rectangle.The axis that described groove is preferably around described three-way change-over valve distributes ringwise.Like this, just have three in the four sides of hot runner heater towards described three-way change-over valve heat transfer, and all the other adjacent components towards described three-way change-over valve conduct heat.
Preferably, the three-way change-over valve of the utility model band hot runner heater also is provided with block temperature sensor, this block temperature sensor is fastened in the tapped hole of described three-way change-over valve, simultaneously, on this block temperature sensor temperature transducer is installed, temperature transducer also is connected with temperature control apparatus.Like this, temperature transducer passes to temperature control apparatus with the temperature of the three-way change-over valve that records, when the temperature of three-way change-over valve is higher than the assigned temperature value, then temperature control apparatus disconnects the power supply of hot runner heater and circular mica heater, stop heating, when the temperature of three-way change-over valve was lower than the assigned temperature value, then temperature control apparatus was connected the power supply of hot runner heater and circular mica heater, heat, make the temperature of described three-way change-over valve keep constant.
Preferably, the quantity of described temperature transducer and block temperature sensor is 1.
The utility model has following advantage and effect with respect to prior art:
1, the utility model respectively is provided with a circular mica heater by the three-way change-over valve that keeps existing injection moulding machine on the cylindrical of the two ends of three-way change-over valve, absorbed the advantage of the original mode of heating of three-way change-over valve of injection moulding machine, and innovation on this basis: by the hot runner heater is set, first with the hot runner heating technology preferably the mold hot flow heating technology be applied to three-way change-over valve, improved the warming velocity of three-way change-over valve greatly, shorten the time that injection moulding machine start preparation is produced, improved manufacturing efficiency effectively;
2, heating properties is stable, fault-free, because the mold hot flow heater performance height that two end faces of three-way change-over valve of the present utility model use, its no-failure life is more than 10 years;
3, heating power is big, thermal efficiency height, the utility model is to adopt high power die hot runner heater, and be arranged in the groove of two end faces of three-way change-over valve, and the cross section of groove is preferably rectangle, the axis that its shape is preferably around three-way change-over valve distributes ringwise, accordingly, the cross section of described hot runner heater is preferably rectangle, like this, just can increase length and the area of hot runner heater to greatest extent to effective heating of groove, making has three towards the three-way change-over valve heat transfer in the mold hot flow heater four sides, and all the other adjacent components towards three-way change-over valve conduct heat, and have the high characteristics of the thermal efficiency;
4, the temperature of three-way change-over valve can keep constant, after three-way change-over valve of the present utility model is warmed up to assigned temperature, pass through temperature control apparatus, can make the temperature of three-way change-over valve keep constant, (PET is the english abbreviation of Polyethylene terephthalate to be particularly useful for injecting and plastifying the PET that carries out simultaneously, Chinese is a PETG, is called for short: bottle embryo injection moulding machine polyester).
Description of drawings
Fig. 1 is the preferred embodiment structural representation of the three-way change-over valve of the utility model band hot runner heater;
Fig. 2 is the plan view of the three-way change-over valve of the utility model band hot runner heater;
Fig. 3 is the E-E sectional view of Fig. 2;
Fig. 4 is the left view of the three-way change-over valve of the utility model band hot runner heater;
Fig. 5 is the plan view of the three-way change-over valve of the utility model band hot runner heater;
Fig. 6 is the F-F sectional view of Fig. 4.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but mode of execution of the present utility model is not limited thereto.
Figure 1 shows that the three-way change-over valve preferred construction of the utility model band hot runner heater.
The three-way change-over valve of band hot runner heater mainly comprises 1,2 powerful mold hot flow heaters of three-way change-over valve, 3,4 circular mica heater holders 4 of 2,2 circular mica heaters and a block temperature sensor 5.
Per 2 circular mica heater holder 4 usefulness screws are fastened on the cylindrical of three-way change-over valve 1, and each circular mica heater 3 is the cylindrical by 2 circular mica heater holders 4 and screw lock ring three-way change-over valve 1 all.
Two end faces at described three-way change-over valve 1 all have groove, are all tightly inlaying a mold hot flow heater 2 in each groove.And the cross sections of groove is rectangle, and groove distributes ringwise around the axis of three-way change-over valve 1, and corresponding, the cross section of described mold hot flow heater 2 is a rectangle.So just can increase the length and the area of effective heating of 2 pairs of grooves of mold hot flow heater to greatest extent, just have three in the four sides of every mold hot flow heater 2 towards three-way change-over valve 1 heat transfer, and all the other adjacent components towards three-way change-over valve 1 conduct heat.
Described block temperature sensor 5 all is fastened in the tapped hole of described three-way change-over valve 1, simultaneously, on this block temperature sensor 5 temperature transducer is installed, and temperature transducer also is connected with temperature control apparatus.Like this, temperature transducer passes to temperature control apparatus with the temperature of the three-way change-over valve 1 that records, when the temperature of three-way change-over valve 1 is higher than the assigned temperature value, then temperature control apparatus disconnects the power supply of mold hot flow heater 2 and circular mica heater 3, stop heating, when the temperature of three-way change-over valve 1 was lower than the assigned temperature value, then temperature control apparatus was connected the power supply of hot runner heater 2 and circular mica heater 3, heat, make the temperature of described three-way change-over valve 1 keep constant.
The three-way change-over valve of the utility model band hot runner heater is connected fastening with injecting cavity, injection nozzle by screw, do not change original Placement and existing mode of heating.Be specially: as shown in Figure 2, the A face of three-way change-over valve 1 connects the plasticizing chamber; As shown in Figure 5, the B face of three-way change-over valve 1 connects the injection nozzle body, and the C face connects injecting cavity, and the D face connects three-way change-over valve 1 core protecgulum, and the G face is connected with three-way change-over valve 1 core bonnet.The groove of three-way change-over valve 1 is a rectangle, and as shown in Figure 3, Fig. 4 is the left view of the three-way change-over valve of the utility model band hot runner heater, and Fig. 6 is the F-F sectional view of Fig. 4.In order to keep the clearness of each planimetric map, more than each planimetric map be three-way change-over valve 1 and installed the mold hot flow heater, and remaining part is not installed, the view during as circular mica heater, circular mica heater holder and a block temperature sensor.
The foregoing description is the utility model preferred implementation; but mode of execution of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (7)
1, the three-way change-over valve of band hot runner heater, comprise three-way change-over valve, 2 circular mica heaters and 4 circular mica heater holders, it is characterized in that: two end faces of described three-way change-over valve all have groove, are provided with the hot runner heater in each groove.
2, the three-way change-over valve of band hot runner heater according to claim 1 is characterized in that: the cross section of described groove is a rectangle, and the cross section of described hot runner heater also is a rectangle.
3, the three-way change-over valve of band hot runner heater according to claim 1 and 2 is characterized in that: described groove distributes ringwise for the axis around three-way change-over valve.
4, the three-way change-over valve of band hot runner heater according to claim 1, it is characterized in that: also be provided with block temperature sensor, this block temperature sensor is fastened in the tapped hole of three-way change-over valve of this band hot runner heater, simultaneously, on this block temperature sensor temperature transducer is installed, temperature transducer also is connected with temperature control apparatus.
5, the three-way change-over valve of band hot runner heater according to claim 4, it is characterized in that: the quantity of described temperature transducer and block temperature sensor is 1.
6, the three-way change-over valve of band hot runner heater according to claim 1 is characterized in that: described hot runner heater is the mold hot flow heater.
7, the three-way change-over valve of band hot runner heater according to claim 6 is characterized in that: described mold hot flow heater is a high power die hot runner heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200518443U CN201359138Y (en) | 2009-02-27 | 2009-02-27 | Three-way switch valve with hot runner heaters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200518443U CN201359138Y (en) | 2009-02-27 | 2009-02-27 | Three-way switch valve with hot runner heaters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201359138Y true CN201359138Y (en) | 2009-12-09 |
Family
ID=41424902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200518443U Expired - Lifetime CN201359138Y (en) | 2009-02-27 | 2009-02-27 | Three-way switch valve with hot runner heaters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201359138Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233412A (en) * | 2013-04-27 | 2013-08-07 | 广东易山重工股份有限公司 | Asphalt circulating control valve body |
| CN104661342A (en) * | 2015-02-10 | 2015-05-27 | 上海欧展电器有限公司 | Mica heater and manufacturing process thereof |
| CN105058710A (en) * | 2014-10-09 | 2015-11-18 | 广州迅智机械有限公司 | Nanometer montmorillonite and PET molding conversion valve |
-
2009
- 2009-02-27 CN CNU2009200518443U patent/CN201359138Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233412A (en) * | 2013-04-27 | 2013-08-07 | 广东易山重工股份有限公司 | Asphalt circulating control valve body |
| CN103233412B (en) * | 2013-04-27 | 2016-06-08 | 广东易山重工股份有限公司 | A kind of Colophonium loop control valve body |
| CN105058710A (en) * | 2014-10-09 | 2015-11-18 | 广州迅智机械有限公司 | Nanometer montmorillonite and PET molding conversion valve |
| CN104661342A (en) * | 2015-02-10 | 2015-05-27 | 上海欧展电器有限公司 | Mica heater and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 510663 the 1 1 buildings of Shenzhou Road No. 19, high tech Industrial Development Zone, Guangdong, China Patentee after: GUANGZHOU UNIQUE INJECTION MOLDING SYSTEM CO., LTD. Address before: 510530 No. 23, Yun Pu Road, Yun Po Industrial Zone, Baiyun District, Guangzhou, Guangdong Patentee before: Guangzhou Yidao Injection Molding Machinery Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091209 |