CN103851236A - Material-injection one-way valve for molding of permanent magnetic ferrite - Google Patents
Material-injection one-way valve for molding of permanent magnetic ferrite Download PDFInfo
- Publication number
- CN103851236A CN103851236A CN201410129101.9A CN201410129101A CN103851236A CN 103851236 A CN103851236 A CN 103851236A CN 201410129101 A CN201410129101 A CN 201410129101A CN 103851236 A CN103851236 A CN 103851236A
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- China
- Prior art keywords
- valve
- steel ball
- way valve
- material feeding
- rubber seal
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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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/30—Feeding material to presses
Abstract
The invention discloses a one-way valve, and in particularly relates to a material-injection one-way valve for molding of a permanent magnetic ferrite. The passively self-sealing material-injection one-way valve for the molding of the permanent magnetic ferrite comprises a valve seat, a valve body and a cover board, wherein a valve chamber is arranged in the valve body, the valve body is arranged on the valve seat, the cover board is arranged on the valve body and seals the valve chamber, a material feeding channel is arranged on the valve seat, a discharging channel is arranged on the valve chamber, and the material feeding channel is communicated with the valve chamber; the material-injection one-way valve also comprises a material sealing steel ball and a rubber sealing ring, the rubber sealing ring is arranged in the valve chamber and is positioned at the combination position of the material feeding channel and the valve chamber, the axis of the rubber sealing ring is parallel to the axis of the valve seat, the material sealing steel ball is arranged in the valve chamber and corresponds to the rubber sealing ring, and the diameter of the material sealing steel ball is more than the inner diameter of the rubber sealing ring. The impact to the rubber sealing ring can be reduced due to the passively self-sealing action, the rubber sealing ring is soft, and the sealing effect is not influenced even if broken steel ball and other impurities exist.
Description
Technical field
The present invention relates to a kind of one-way valve, especially a kind of permanent-magnet ferrite moulding material feeding one-way valve.
Background technique
In the moulding of permanent-magnet ferrite, need to be to accurately material feeding in mould, current stirring filling system: mainly formed by parts such as agitating vessel, material pouring cylinder, material feeding one-way valve, filling tubes.Its major function is: by after adding slip in agitating vessel to stir in material feeding oil cylinder, material feeding one-way valve, filling tube injection moulding mold cavity, and in forming process, seal the slip refluxing in filling tube with material feeding one-way valve, not allow high pressure slip be back in agitating vessel, reach requirement with size and the quality of guaranteeing molding product.
Current material feeding one-way valve mainly contains valve body, valve seat and cover plate composition, is provided with valve pocket in valve body, is provided with sealing tup and tetrafluoroethylene seal ring in valve pocket; This valve body is to be against in seal ring hole and to seal with taper tup of the descending drive of material pouring cylinder.Due to the particularity of slip, wherein often be mingled with the impurity such as broken steel ball, therefore, when taper tup sealing each time, broken steel ball all can cause damage by Paratetrafluoroethylene seal ring under the impact of tup, and hydraulic cylinder sealing tup high frequency impact under, cause seal ring to be very easily out of shape, to rupture and lost efficacy.Simultaneously because the quality of polytetrafluoroethylmaterial material is harder, in the time having the impurity such as broken steel ball in slip, can be pressed in this seal ring and cause poorly sealed.Because traditional one-way valve is to be against in seal ring hole and to seal with taper tup of the descending drive of material pouring cylinder, so, if seal ring damages or is embedded with the impurity such as steel ball by pressure need to change time, this hydraulic pressure material injecting device all must be dismantled and could be keeped in repair and change, need the more time, just reduced the production time.And in the time of dismounting oil hydraulic cylinder, the hydraulic oil in cylinder is very easily unrestrained on the ground, pollutes with oil plant and wastes.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of passive self-packing permanent-magnet ferrite moulding material feeding one-way valve.
The present invention solves the permanent-magnet ferrite moulding material feeding one-way valve that its technical problem adopts, comprise valve seat, valve body and cover plate, in described valve body, be provided with valve pocket, described valve body is arranged on valve seat, described cover plate is arranged on valve body and by valve pocket and seals, on described valve seat, be provided with pan feeding passage, on described valve pocket, be provided with tapping channel, described pan feeding passage is communicated with described valve pocket, also comprise envelope material steel ball and rubber seal, described rubber seal is arranged in valve pocket and is positioned at pan feeding passage and valve pocket junction, the axis of described rubber seal is parallel with valve seat axis, it is interior and corresponding with described rubber seal that described envelope material steel ball is arranged on valve pocket, the diameter of described envelope material steel ball is greater than the internal diameter of rubber seal.
Further, also comprise position-limited rack, described position-limited rack is arranged in valve pocket, in described position-limited rack is limited in envelope material steel ball.
Further, the spacing height of described position-limited rack is lower than the junction of described tapping channel and valve pocket.
Further, the spacing height of described position-limited rack is: 35～65mm.
Further, the spacing height of described position-limited rack is: 40mm.
Further, the diameter of described envelope material steel ball is: 20～40mm.
Further, the diameter of described envelope material steel ball is: 30mm.
The invention has the beneficial effects as follows: owing to having adopted envelope material steel ball to coordinate with rubber seal, in the time of slip casting, envelope material steel ball can be opened under hydraulic pressure, thereby completes opening action; In the time of moulding pressurize, envelope material steel ball withstands in rubber seal under dwell pressure, completes sealing action.This passive self-packing action can reduce the impact to rubber seal, and rubber seal quality is comparatively soft, even if there are the impurity such as broken steel ball also not affect sealing.This one-way valve is automatically to move according to pressure, and without additional energy source, envelope material steel ball is also freely, very convenient in the time of maintenance and repair.The operation of its long time stability, reduces maintenance cost.Improve the production time, also improved output.Conforming product rate and material feeding control sensitivity are improved.The sphere of activities that position-limited rack limits envelope material steel ball can be set in valve pocket, avoid the collision of steel ball to valve pocket.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention while closing;
Fig. 2 is the schematic diagram of the present invention while opening;
Component, position and numbering in figure: valve seat bolt 1, valve seat 2, valve body 3, slurry 4, tapping channel 5, cover plate 6, cover plate bolt 7, position-limited rack 8, material pouring cylinder control mouth 9, envelope material steel ball 10, rubber seal 11, pan feeding passage 12.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, the present invention includes valve seat 2, valve body 3 and cover plate 6, in described valve body 3, be provided with valve pocket, described valve body 3 is arranged on valve seat 2, described cover plate 6 is arranged on valve body 3 and by valve pocket and seals, on described valve seat 2, be provided with pan feeding passage 12, on described valve pocket, be provided with tapping channel 5, described pan feeding passage 12 is communicated with described valve pocket, also comprise envelope material steel ball 10 and rubber seal 11, described rubber seal 11 is arranged in valve pocket and is positioned at pan feeding passage 12 and valve pocket junction, the axis of described rubber seal 11 is parallel with valve seat 2 axis, it is interior and corresponding with described rubber seal 11 that described envelope material steel ball 10 is arranged on valve pocket, the diameter of described envelope material steel ball 10 is greater than the internal diameter of rubber seal 11.The bottom of valve seat 2 is provided with valve seat bolt 1, in use, can will utilize valve seat bolt 1 that this one-way valve is arranged on oil hydraulic cylinder.
For the range of movement of better restriction envelope material steel ball 10, also comprise position-limited rack 8, described position-limited rack 8 is arranged in valve pocket, in described position-limited rack 8 is limited in envelope material steel ball 10.Position-limited rack 8 need to arrange suitable height, and highly it seal the movable height of material steel ball 10, thereby make the sphere of activities of steel ball reach the optimum state.Generally speaking, the spacing height of position-limited rack 8 is lower than the junction of described tapping channel 5 and valve pocket.The present invention recommends the spacing height of position-limited rack 8 to be: 35～65mm, recommends to be highly: 40mm.
The diameter of envelope material steel ball 10 is determined according to actual conditions, and it need to possess certain weight, thereby meets the requirement of sealing, and generally speaking, the diameter of envelope material steel ball 10 is: 20～40mm.Recommendation diameter is: 30mm.
Fig. 1 is permanent-magnet ferrite material feeding one-way valve schematic diagram of the present invention, moves upward, is suction state in figure for sealing material steel ball 10.Hydraulic piston upwards moves, and making slip in valve body is negative pressure state, and envelope material steel ball 10 moves upward, and in agitating vessel, slip is inhaled in one-way valve through pipeline, pan feeding passage 12, completes suction process.
Fig. 2 seals material feeding state for sealing material steel ball 10.Hydraulic piston moves downwards, making slip in valve body is pressure state, envelope material steel ball 10 moves downward to seal ring material feeding mouth and seals material feeding mouth by deadweight, hydraulic piston continues operation downwards, and in one-way valve, slip is injected into through tapping channel 5, filling tube, material pond and in mold cavity, completes material feeding process.And in moulding pressing process, envelope material steel ball 10 is tightly pressed in rubber seal rings for seal oral area under pressure, guarantees that slip can not be back in agitating vessel, reaches reliable sealing function.
In the time of work, hydraulic piston is up, forms negative pressure and drives the envelope material steel ball 10 of this one-way valve to move upward and open material feeding mouth, and in agitating vessel, slip is in material feeding mouth enters valve body; Hydraulic piston is descending, and envelope material steel ball falls within rubber seal 11 center hole oral areas for 10 times and seals material feeding mouth, and in valve body, slip injects mold cavity through filling tube under the promotion of oil hydraulic cylinder, completes suction, material feeding process.On the one hand, feeding materials valve of the present invention is independent and be directly installed on oil hydraulic cylinder, when maintenance, only four fixing bolts on feeding materials valve cover plate need be unloaded, and takes out position-limited rack 8, envelope material steel ball 10, takes out in slip the impurity such as broken steel ball, rinses well.Change rubber seal 11 if need, only need to take out failed rubber seal 11, reappose the rubber seal 11 new into.Just do not need to disassemble whole one-way valve and oil hydraulic cylinder, like this, engineering time is extremely short, extremely convenient.On the other hand, rubber seal 11 adopts quality of rubber materials, and its matter is soft to be difficult for agingly, can use for a long time, guarantees that the long-time running of material feeding one-way valve is reliable and stable and does not need often to change and maintenance.If in using process, slip the inside is mixed with the impurity such as tiny broken steel ball, is pressed into rubber seal 11, because rubber seal 11 quality do not affect sealing compared with soft, do not need frequent replacing yet, just change when more when embedding impurity, like this, the operating cost of material feeding one-way valve is just very low.The third aspect, adopts rubber seal 11, as long as just can supply by continuous production after the manufacturer production supply of material once of supplying, comparatively simple, if adopt teflon rod, needs turning processing, pretty troublesome.Therefore, adopt rubber seal 11, purchase cost is also relatively lower.Fourth aspect, adopts envelope material steel ball 10 to seal, and because of its quality hard wear resistant, can permanent use not need to change.User cost is low, do not need to sealing tup like that also need processing and machining accuracy high.Through test of many times, adopt the envelope material steel ball 10 of Ф 30mm more reasonable, when work, it can easily move upward and can depress to fall to reaching easily sealing function adding compared with large because of quality under negative pressure.Admittedly can make material feeding one-way valve of the present invention stable and reliable operation.The 5th aspect, adopt position-limited rack 8, mainly that position when limiting envelope material steel ball 10 and moving upward limits, if without this position- limited rack 8,10 of steel balls of envelope material easily too move upward, and in the time that hydraulic piston is descending, it does not also fall into the function that does not reach sealed feed inlet in rubber seal 11, in the time of molding product, it is interior and can not normally produce that in mould, material pond, slip is just back to agitating vessel; If position-limited rack 8 limits envelope material, steel ball 10 positions are too low, and envelope material steel ball 10 is too small with rubber seal 11 gaps, enters one-way valve and can not guarantee molding product thickness size and product density requirement and can not ensure required enough slips.Therefore, the setting of position-limited rack 8 is extremely important.
Claims (7)
1. permanent-magnet ferrite moulding material feeding one-way valve, comprise valve seat (2), valve body (3) and cover plate (6), described valve body is provided with valve pocket in (3), described valve body (3) is arranged on valve seat (2), described cover plate (6) is arranged on valve body (3) above and valve pocket is sealed, on described valve seat (2), be provided with pan feeding passage (12), on described valve pocket, be provided with tapping channel (5), described pan feeding passage (12) is communicated with described valve pocket, it is characterized in that: also comprise envelope material steel ball (10) and rubber seal (11), described rubber seal (11) is arranged in valve pocket and is positioned at pan feeding passage (12) and valve pocket junction, the axis of described rubber seal (11) is parallel with valve seat (2) axis, it is interior and corresponding with described rubber seal (11) that described envelope material steel ball (10) is arranged on valve pocket, the diameter of described envelope material steel ball (10) is greater than the internal diameter of rubber seal (11).
2. permanent-magnet ferrite moulding material feeding one-way valve as claimed in claim 1, is characterized in that: also comprise position-limited rack (8), described position-limited rack (8) is arranged in valve pocket, in described position-limited rack (8) will seal and expect that steel ball (10) is limited in.
3. permanent-magnet ferrite moulding material feeding one-way valve as claimed in claim 2, is characterized in that: the spacing height of described position-limited rack (8) is the junction with valve pocket lower than described tapping channel (5).
4. permanent-magnet ferrite moulding material feeding one-way valve as claimed in claim 3, is characterized in that: the spacing height of described position-limited rack (8) is: 35～65mm.
5. permanent-magnet ferrite moulding material feeding one-way valve as claimed in claim 4, is characterized in that: the spacing height of described position-limited rack (8) is: 40mm.
6. permanent-magnet ferrite moulding material feeding one-way valve as claimed in claim 1, is characterized in that: the diameter of described envelope material steel ball (10) is: 20～40mm.
7. permanent-magnet ferrite moulding material feeding one-way valve according to claim 6, is characterized in that: the diameter of described envelope material steel ball (10) is: 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410129101.9A CN103851236A (en) | 2014-04-01 | 2014-04-01 | Material-injection one-way valve for molding of permanent magnetic ferrite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410129101.9A CN103851236A (en) | 2014-04-01 | 2014-04-01 | Material-injection one-way valve for molding of permanent magnetic ferrite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103851236A true CN103851236A (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410129101.9A Pending CN103851236A (en) | 2014-04-01 | 2014-04-01 | Material-injection one-way valve for molding of permanent magnetic ferrite |
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| Country | Link |
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| CN (1) | CN103851236A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565395A (en) * | 2014-12-25 | 2015-04-29 | 安徽金寨将军磁业有限公司 | Combined type material sealing valve for permanent magnetic ferrite tile |
| CN107650239A (en) * | 2017-08-31 | 2018-02-02 | 安徽信息工程学院 | Gypsum injection forming mould |
| CN113638771A (en) * | 2020-05-11 | 2021-11-12 | 侯守军 | Ponding pump drainage system in building engineering bridge tunnel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2723679A (en) * | 1954-11-05 | 1955-11-15 | Howard B Harris | Self-cleaning vertical air check valve |
| US3830252A (en) * | 1973-01-11 | 1974-08-20 | J Follett | Excess flow responsive shut-off valve |
| US4243067A (en) * | 1979-11-15 | 1981-01-06 | Sterling Drug Inc. | Ball type check valve |
| CN2307968Y (en) * | 1997-05-30 | 1999-02-17 | 康传鹏 | Stop valve with return prevention |
| CN2337372Y (en) * | 1998-06-12 | 1999-09-08 | 胜利石油管理局桩西采油厂 | Ceramic valve ball type single-flow valve |
| CN201401537Y (en) * | 2009-04-29 | 2010-02-10 | 黄国峻 | Ball core check valve preventing natural leakage |
| CN201462107U (en) * | 2009-07-23 | 2010-05-12 | 王泽文 | Partial limit type one-way ball valve |
-
2014
- 2014-04-01 CN CN201410129101.9A patent/CN103851236A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2723679A (en) * | 1954-11-05 | 1955-11-15 | Howard B Harris | Self-cleaning vertical air check valve |
| US3830252A (en) * | 1973-01-11 | 1974-08-20 | J Follett | Excess flow responsive shut-off valve |
| US4243067A (en) * | 1979-11-15 | 1981-01-06 | Sterling Drug Inc. | Ball type check valve |
| CN2307968Y (en) * | 1997-05-30 | 1999-02-17 | 康传鹏 | Stop valve with return prevention |
| CN2337372Y (en) * | 1998-06-12 | 1999-09-08 | 胜利石油管理局桩西采油厂 | Ceramic valve ball type single-flow valve |
| CN201401537Y (en) * | 2009-04-29 | 2010-02-10 | 黄国峻 | Ball core check valve preventing natural leakage |
| CN201462107U (en) * | 2009-07-23 | 2010-05-12 | 王泽文 | Partial limit type one-way ball valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565395A (en) * | 2014-12-25 | 2015-04-29 | 安徽金寨将军磁业有限公司 | Combined type material sealing valve for permanent magnetic ferrite tile |
| CN107650239A (en) * | 2017-08-31 | 2018-02-02 | 安徽信息工程学院 | Gypsum injection forming mould |
| CN113638771A (en) * | 2020-05-11 | 2021-11-12 | 侯守军 | Ponding pump drainage system in building engineering bridge tunnel |
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Application publication date: 20140611 |
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| RJ01 | Rejection of invention patent application after publication |