CN103802255A - PTFE screw pump stator molding clamp and technology - Google Patents
PTFE screw pump stator molding clamp and technology Download PDFInfo
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- CN103802255A CN103802255A CN201410073888.1A CN201410073888A CN103802255A CN 103802255 A CN103802255 A CN 103802255A CN 201410073888 A CN201410073888 A CN 201410073888A CN 103802255 A CN103802255 A CN 103802255A
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- stator
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- pressing plate
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Abstract
The invention provides a PTFE screw pump stator molding clamp and technology, which are used for solving the problem that a screw pump stator in the prior art cannot meet the requirements of media. The PTFE screw pump stator molding clamp comprises a pressing plate, a charging barrel, a stator mold core, a bottom mold plate and a bolt, wherein the bolt comprises a mold core fixing bolt and a locking bolt; the pressing plate is T-shaped and comprises a head part and an end part; a through hole which penetrates through the head part and the end part is formed in the pressing plate; the pressing plate is bilaterally symmetrical relative to the through hole; a cylindrical cavity is formed in the charging barrel; the end part is inserted into the cylindrical cavity; one end of the stator mold core is inserted into the through hole, and the other end of the stator mold core is fixed on the bottom mold plate; the bottom mold plate is fixedly connected with the charging barrel. The molding technology provided by the invention is simple, and the disadvantage that a screw pump adopting a rubber stator cannot transfer certain special media is overcome.
Description
Technical field
The present invention relates to a kind of screw pump stator, particularly a kind of PTFE screw pump stator shaping jig and PTFE screw pump stator moulding process.
Background technology
Screw pump is a kind ofly to rely on engaging that the pump housing forms with screw rod spatial volume changes and the mobile drum pump of carrying liquid or making it supercharging.
Screw pump stator is in screw pump, to hold flimsy strength member, and screw pump is being carried in special media situation, and common elastomer stator can not meet the requirement (as strong corrosive media) of medium; Although PTFE is known as King, there is the irregularly shaped of the defect of processing difficulties, particularly screw stator, adopt general machining mode can't resolve.
Make up above-mentioned defect therefore be necessary to develop a kind of new PTFE screw pump stator shaping jig and PTFE screw pump stator moulding process.
Summary of the invention
The present invention proposes a kind of PTFE screw pump stator shaping jig and PTFE screw pump stator moulding process, solved screw pump stator in prior art and can not meet the defect of medium requirement.Moulding process of the present invention is simple, has solved the defect that cannot carry some special medias when screw pump adopts elastomer stator.
Technical scheme of the present invention is achieved in that
A kind of PTFE screw pump stator shaping jig, it comprises pressing plate, barrel, mould core of stator, end template and bolt; Described bolt comprises core rod set bolt and clamping screw; Described pressing plate is " T " font, and it comprises head and end, and described pressing plate is provided with the through hole that runs through head and end, and described pressing plate is symmetrical with respect to described through hole; Described barrel inside is provided with cylindrical cavity, and insert in described cylindrical cavity described end; Described mould core of stator one end is located in described through hole, and its other end is fixed on described end template; Described end template is fixedly connected with described barrel.
Further, described mould core of stator is fixed on described end template by described core rod set bolt.
Further, described barrel and described end template are fixed by described clamping screw.
Further, described through hole has the first diameter, and described mould core of stator has Second bobbin diameter near one end of described through hole, and described Second bobbin diameter is identical with described the first diameter.
Further, described cylindrical cavity has the first width, and described end is provided with the 3rd diameter, and described the first width is identical with described the 3rd diameter.
A kind of PTFE screw pump stator moulding process, it comprises the steps: (1) preparation PTFE powder, glass and baking box; (2) the PTFE powder that is 75% by mass ratio and 25% glass mix and mix thoroughly, the mixed-powder after mixing thoroughly are poured in the cylindrical cavity of barrel; (3) end of pressing plate is inserted in the cylindrical cavity of barrel, and mould core of stator one end is inserted in the through hole of pressing plate, the application of force presses down from top to bottom, by pressing plate by mixed-powder compacting; (4) put into as a whole sintering in baking box by above-mentioned, sintering temperature is 360 ℃-380 ℃, and sintering time is 8 hours; (5) cooling rear taking-up mould core of stator, obtains the PTFE screw pump stator of moulding.
The present invention is by adopt mass ratio be 75% PTFE powder and 25% glass sinter molding, and moulding process is simple, solved when screw pump adopts elastomer stator cannot pumped (conveying) medium defect.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of PTFE screw pump stator shaping jig of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
In order to contribute to and clarify the description of embodiment subsequently, before the specific embodiment of the present invention is elaborated, part term is made an explanation, following explanation is applied to this description and claims.
PTFE, i.e. the english abbreviation of Polytetrafluoroethene, Chinese is " polytetrafluoroethylene (PTFE) ", is commonly called as " King ", the product of this material is generally referred to as " non-sticking lining "/" easy clean pot material "; It is a kind of artificial synthesized polymer material that has used fluorine to replace all hydrogen atoms in polyethylene.This material has the feature of antiacid alkali resistant, anti-various organic solvents.
With reference to Fig. 1, a kind of PTFE screw pump stator shaping jig 1, it comprises pressing plate 2, barrel 3, mould core of stator 4, end template 5 and bolt (not shown); Described bolt comprises core rod set bolt 61 and clamping screw 62; Described pressing plate 2 is " T " font, and it comprises head 21 and end 22, and described pressing plate 2 is provided with the through hole 23 that runs through head 21 and end 22, and described pressing plate 2 is symmetrical with respect to described through hole 23; Described barrel 3 inside are provided with cylindrical cavity 31, and described end 22 enters in described cylindrical cavity 31; Described mould core of stator 4 one end are located in described through hole 23, and its other end is fixed on described end template 5; Described end template 5 is fixedly connected with described barrel 3.
Further, described mould core of stator 4 is fixed on described end template 5 by described core rod set bolt 61.The present invention is fixed on one end of mould core of stator on end template by core rod set bolt, presses down in process at pressing plate, guarantees that mould core of stator maintains static, thereby convenient by the mixed-powder compacting in barrel.
Further, described barrel 3 and described end template 5 are fixing by described clamping screw 62.Barrel and end template are fixed, also played the effect of fixing barrel, make to press down in process at pressing plate, barrel maintains static, convenient by the mixed-powder compacting in barrel.Those skilled in the art can select the number of clamping screw as required, only need reach barrel and end template fixation.
Further, described through hole has the first diameter (not shown), and described mould core of stator has Second bobbin diameter (not shown) near one end of described through hole, and described Second bobbin diameter is identical with described the first diameter.The diameter of through hole is identical with the diameter of mould core of stator, thus pressing plate in the process pressing down, mould core of stator one end is just inserted in through hole, facilitates end to be pressed onto the mixed-powder in all cylindrical cavities.
Further, described cylindrical cavity has the first width (not shown), and described end is provided with the 3rd diameter (not shown), and described the first width is identical with described the 3rd diameter.The width of cylindrical cavity is identical with the diameter of end, facilitates end can be pressed onto the mixed-powder in all cylindrical cavities.
PTFE screw pump stator moulding process of the present invention, it comprises the steps: (1) preparation PTFE powder, glass and baking box; (2) the PTFE powder that is 75% by mass ratio and 25% glass mix and mix thoroughly, the mixed-powder after mixing thoroughly are poured in the cylindrical cavity of barrel; (3) end of pressing plate is inserted in the cylindrical cavity of barrel, and mould core of stator one end is inserted in the through hole of pressing plate, the application of force presses down from top to bottom, by pressing plate by mixed-powder compacting; (4) put into as a whole sintering in baking box by above-mentioned, sintering temperature is 360 ℃-380 ℃, and sintering time is 8 hours; (5) cooling rear taking-up mould core of stator, obtains the PTFE screw pump stator of moulding.
Compared with prior art, tool has the following advantages in the present invention:
(1) the PTFE powder that the present invention is 75% by employing mass ratio and 25% glass sinter molding, gather the advantage of PTFE material and glass fiber material, and be processed into type, the screw pump stator of formation rule, solve the defect that cannot carry some special medias when screw pump adopts elastomer stator, used extensively.
(2) by the cylindrical cavity of barrel, stator moulding material is fixed into regular stator profile, by the compacting of stator moulding material, has solved the defect of screw pump stator difficult forming by pressing plate.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a PTFE screw pump stator shaping jig, is characterized in that, it comprises pressing plate, barrel, mould core of stator, end template and bolt; Described bolt comprises core rod set bolt and clamping screw;
Described pressing plate is " T " font, and it comprises head and end, and described pressing plate is provided with the through hole that runs through head and end, and described pressing plate is symmetrical with respect to described through hole;
Described barrel inside is provided with cylindrical cavity, and insert in described cylindrical cavity described end;
Described mould core of stator one end is located in described through hole, and its other end is fixed on described end template;
Described end template is fixedly connected with described barrel.
2. PTFE screw pump stator shaping jig as claimed in claim 1, is characterized in that, described mould core of stator is fixed on described end template by described core rod set bolt.
3. PTFE screw pump stator shaping jig as claimed in claim 2, is characterized in that, described barrel and described end template are fixed by described clamping screw.
4. the PTFE screw pump stator shaping jig as described in any one in claim 1-3, it is characterized in that, described through hole has the first diameter, and described mould core of stator has Second bobbin diameter near one end of described through hole, and described Second bobbin diameter is identical with described the first diameter.
5. PTFE screw pump stator shaping jig as claimed in claim 4, is characterized in that, described cylindrical cavity has the first width, and described end is provided with the 3rd diameter, and described the first width is identical with described the 3rd diameter.
6. a PTFE screw pump stator moulding process, is characterized in that, it comprises the steps:
(1) prepare PTFE powder, glass and baking box;
(2) the PTFE powder that is 75% by mass ratio and 25% glass mix and mix thoroughly, the mixed-powder after mixing thoroughly are poured in the cylindrical cavity of barrel;
(3) end of pressing plate is inserted in the cylindrical cavity of barrel, and mould core of stator one end is inserted in the through hole of pressing plate, the application of force presses down from top to bottom, by pressing plate by mixed-powder compacting;
(4) put into as a whole sintering in baking box by above-mentioned, sintering temperature is 360 ℃-380 ℃, and sintering time is 8 hours;
(5) cooling rear taking-up mould core of stator, obtains the PTFE screw pump stator of moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410073888.1A CN103802255A (en) | 2014-02-28 | 2014-02-28 | PTFE screw pump stator molding clamp and technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410073888.1A CN103802255A (en) | 2014-02-28 | 2014-02-28 | PTFE screw pump stator molding clamp and technology |
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| Publication Number | Publication Date |
|---|---|
| CN103802255A true CN103802255A (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410073888.1A Pending CN103802255A (en) | 2014-02-28 | 2014-02-28 | PTFE screw pump stator molding clamp and technology |
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| CN (1) | CN103802255A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114670394A (en) * | 2022-04-11 | 2022-06-28 | 广东斯坦德流体系统有限公司 | Stator machining method and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6229781A (en) * | 1985-08-01 | 1987-02-07 | Furukawa Mining Co Ltd | Eccentric screw pump |
| CN1216596A (en) * | 1996-04-24 | 1999-05-12 | 史蒂文·M·伍德 | Progressive cavity pump using composite materials |
| CN1850485A (en) * | 2006-04-25 | 2006-10-25 | 青岛科技大学 | Three-station vertical injection moudling-equipment for screw drilling tool or screw pump rubber stator |
| CN202493430U (en) * | 2012-02-01 | 2012-10-17 | 河北恒盛泵业股份有限公司 | Single-screw pump stator |
| CN203831657U (en) * | 2014-02-28 | 2014-09-17 | 广东斯坦德流体系统有限公司 | Molding clamp of PTFE (Polytetrafluoroethylene) screw pump stator |
-
2014
- 2014-02-28 CN CN201410073888.1A patent/CN103802255A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6229781A (en) * | 1985-08-01 | 1987-02-07 | Furukawa Mining Co Ltd | Eccentric screw pump |
| CN1216596A (en) * | 1996-04-24 | 1999-05-12 | 史蒂文·M·伍德 | Progressive cavity pump using composite materials |
| CN1850485A (en) * | 2006-04-25 | 2006-10-25 | 青岛科技大学 | Three-station vertical injection moudling-equipment for screw drilling tool or screw pump rubber stator |
| CN202493430U (en) * | 2012-02-01 | 2012-10-17 | 河北恒盛泵业股份有限公司 | Single-screw pump stator |
| CN203831657U (en) * | 2014-02-28 | 2014-09-17 | 广东斯坦德流体系统有限公司 | Molding clamp of PTFE (Polytetrafluoroethylene) screw pump stator |
Non-Patent Citations (2)
| Title |
|---|
| 俞芙芳: "《新编简明塑料模具使用手册》", 31 January 2006, article "新编简明塑料模具使用手册", pages: 180-182 * |
| 陈海涛: "《塑料板材与加工》", 31 July 2013, article "聚四氟乙烯模压厚板", pages: 151 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114670394A (en) * | 2022-04-11 | 2022-06-28 | 广东斯坦德流体系统有限公司 | Stator machining method and system |
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Application publication date: 20140521 |