CN203604757U - Steel ball guide type feeding valve - Google Patents
Steel ball guide type feeding valve Download PDFInfo
- Publication number
- CN203604757U CN203604757U CN201320804547.8U CN201320804547U CN203604757U CN 203604757 U CN203604757 U CN 203604757U CN 201320804547 U CN201320804547 U CN 201320804547U CN 203604757 U CN203604757 U CN 203604757U
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- steel ball
- valve needle
- piston
- valve
- pressure adjusting
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Abstract
The utility model discloses a steel ball guide type feeding valve. The feeding valve comprises a valve body, a long nozzle needle, a short nozzle needle, thrust springs, pressure adjusting components, steel ball positioning rods, steel balls, piston rods and piston sleeves. The piston rods are disposed in the piston sleeves, threaded holes are formed in the rear ends of the long nozzle needle and the short nozzle needle, external threads are arranged at the ends of the piston rods, the long nozzle needle and the short nozzle needle penetrate the threaded holes to be in threaded connection with the portions of the external threads of the piston rods respectively, and the other ends of the piston rods are bowl-shaped. Conical grooves are formed in the bottoms of the bowl-shaped structures, the steel balls are arranged in the conical grooves, the other sides of the steel balls are disposed in conical support grooves of the steel ball positioning rods, and the rear ends of the steel ball positioning rods are inserted in the thrust springs. By means of the feeding valve, overlapping of thrust to the nozzle needles and axes of the nozzle needles is guaranteed, and leakage can be prevented; friction between the rear piston rod and the piston sleeve outside the piston rod can be prevented due to horizontal feeding of the nozzle needles, and blockage can be prevented.
Description
Technical field
The utility model belongs to a kind of inlet valve of spreader, is specially a kind of steel ball guidance type inlet valve
background technique
Spreader equipment has two inlet valves of A/B to coordinate feed at present, and general A valve inner is fluid polyurethane, and B valve inner is fluid isocyanates, and the mixing of materials in two inlet valves of A/B is through being uniformly mixed formation gluing.The A/B inlet valve of spreader equipment all adopts the Matter Transfer type inlet valve of twin nipple pin type, as a patent No. before my company is: " the automatically quantitative feed gluing machine head " of " 201220514069.2 ", the valve needle of inlet valve adopts the valve needle of integral type, because adopting spring, valve needle is connected to the piston at rear portion, valve needle front end is around mobile fluid foods, so in the situation that valve needle is opened, valve needle front end is to adopt unsettled structure, valve needle front end does not support, valve needle rear end and valve body are Spielpassung, and Spielpassung length is shorter, in use because the polyurethane/isocyanates of fluid is bottom-up mobile, can be to one of valve needle front end thrust upwards, and the spring at valve needle rear with valve needle without being fixedly connected with, so occur that stuck situation often appears in valve needle rear end and valve body.Stuck reason is specially, valve needle is integral type structure, thrust is provided by spring, and spring and valve needle rear end are annular surface of contact, thrust is provided by annular surface of contact, spring damages and easily causes thrust inequality, cause occurring resultant direction that valve needle is subject to and valve needle axially not on same straight line, and then there is stuck situation.And the radial force that the polyurethane/isocyanates of fluid is subject to can make to produce and rub between valve needle rear end and valve body, long-time use causes valve body wearing and tearing, it is large that Spielpassung becomes, excessive Spielpassung causes the correctly inlet of two inlet valves of shutoff A/B of valve needle front end, causes occurring leaking the situation of material.
Summary of the invention
For above-mentioned situation, the utility model provides a kind of steel ball guidance type inlet valve, adopt the thrust of the cooperation assurance spring of steel ball positioning rod, steel ball and piston rod to concentrate on the shaft axis that is passed to valve needle and guaranteed to overlap with shaft axis valve needle to valve needle thrust by spring, guarantee there will not be leakage material; The horizontal feed of valve needle has also guaranteed can not produce friction between rear piston bar and the piston sleeve of piston rod outside simultaneously, there will not be stuck situation.
To achieve these goals, the technical solution of the utility model is as follows:
Steel ball guidance type inlet valve, comprise valve body, long valve needle, short valve needle, thrust spring, pressure adjusting part, described valve body bottom is provided with circulation liquid entering hole, valve body top is provided with circulation liquid outlet, in described valve body, bottom is provided with long valve needle, on valve body, be provided with nozzle with the corresponding position of long valve needle, valve body internal upper part is provided with short valve needle, thrust spring is located at respectively long valve needle and short valve needle rear end, thrust spring rear is provided with pressure adjusting part, it is characterized in that, also comprise steel ball positioning rod, steel ball, piston rod and piston sleeve, piston rod is placed in piston sleeve, the rear end of described long valve needle and short valve needle is equipped with tapped hole, described piston rod one end is provided with outside thread, long valve needle and short valve needle are threaded with the male thread portion of piston rod by tapped hole respectively, the piston rod the other end is bowl-shape, bowl structure bottom is provided with conical tank, in conical tank, be provided with steel ball, steel ball opposite side is arranged in the circular cone bracket of steel ball positioning rod, insert in thrust spring steel ball positioning rod rear end, thrust spring rear Bonding pressure adjusting part.
Further, described valve body top is also provided with exhaust port, exhaust port be provided with sealing screw rod.
Further, described pressure adjusting part comprises pressure regulating cylinder body, pressure adjusting screw, pressure adjusting screw seat, Compress Spring, Compress Spring seat, star seal ring, spring seat push rod, spring seat push rod cover plate, spring seat guide rod.
The utility model has the advantages that: adopt the thrust of the cooperation assurance spring of steel ball positioning rod, steel ball and piston rod to concentrate on the shaft axis that is passed to valve needle and guaranteed to overlap with shaft axis valve needle to valve needle thrust by spring, guarantee there will not be leakage material; The horizontal feed of valve needle has also guaranteed can not produce friction between rear piston bar and the piston sleeve of piston rod outside simultaneously, there will not be stuck situation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is explosive view of the present utility model.
In the drawings: 1-valve body; The long valve needle of 2-; The short valve needle of 3-; 4-thrust spring; 5-steel ball positioning rod; 6-steel ball; 7-piston rod; 8-conical tank; 9-circular cone bracket; 11-piston sleeve; 12-exhaust port; 13-pressure regulating cylinder body; 14-pressure adjusting screw; 15-pressure adjusting screw seat, 16-Compress Spring, 17-Compress Spring seat, 18-star seal ring, 19-spring seat push rod, 20-spring seat push rod cover plate, 21-spring seat guide rod.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1 ~ Fig. 2, steel ball guidance type inlet valve, comprise valve body, long valve needle, short valve needle, thrust spring, pressure adjusting part, described valve body bottom is provided with circulation liquid entering hole, valve body top is provided with circulation liquid outlet, in described valve body, bottom is provided with long valve needle, valve body internal upper part is provided with short valve needle, thrust spring is located at respectively long valve needle and short valve needle rear end, thrust spring rear is provided with pressure adjusting part, it is characterized in that, also comprise steel ball positioning rod, steel ball, piston rod and piston sleeve, piston rod is placed in piston sleeve, the rear end of described long valve needle and short valve needle is equipped with tapped hole, described piston rod one end is provided with outside thread, long valve needle and short valve needle are threaded with the male thread portion of piston rod by tapped hole respectively, the piston rod the other end is bowl-shape, bowl structure bottom is provided with conical tank, in conical tank, be provided with steel ball, steel ball opposite side is arranged in the circular cone bracket of steel ball positioning rod, insert in thrust spring steel ball positioning rod rear end, thrust spring rear Bonding pressure adjusting part.
Adopt the thrust of the cooperation assurance spring of steel ball positioning rod, steel ball and piston rod to concentrate on the shaft axis that is passed to valve needle and guaranteed to overlap with shaft axis valve needle to valve needle thrust by spring, guarantee there will not be leakage material; The horizontal feed of valve needle has also guaranteed can not produce friction between rear piston bar and the piston sleeve of piston rod outside simultaneously, there will not be stuck situation.
Further, described valve body top is also provided with exhaust port, exhaust port be provided with sealing screw rod.
As preferred embodiment, on valve body, set up exhaust port and can guarantee the preparatory stage before spreader work, in two inlet valves of A/B, fill in the process of polyurethane/isocyanates of fluid, polyurethane/the isocyanates of fluid is from bottom to top in uphill process, original air that is full of valve body can be discharged from exhaust port, after valve body fills the polyurethane/isocyanates of fluid, tighten sealing screw rod.Such structure is conducive to the unnecessary air of in good time discharge, guarantees the degree of purity of polyurethane/isocyanates of fluid, avoids nozzle to extrude being mixed with the fluid polyurethane/isocyanates of gas, causes gluing Quality Down.
Further, described pressure adjusting part comprises pressure regulating cylinder body, pressure adjusting screw, pressure adjusting screw seat, Compress Spring, Compress Spring seat, star seal ring, spring seat push rod, spring seat push rod cover plate, spring seat guide rod.
As preferred embodiment, the design of pressure adjusting part has guaranteed pressure controlled transmission accuracy, good sealing effect, and detachable design, is convenient to maintenance.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and specification, describe is principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (3)
1. steel ball guidance type inlet valve, comprise valve body, long valve needle, short valve needle, thrust spring, pressure adjusting part, described valve body bottom is provided with circulation liquid entering hole, valve body top is provided with circulation liquid outlet, in described valve body, bottom is provided with long valve needle, on valve body, be provided with nozzle with the corresponding position of long valve needle, valve body internal upper part is provided with short valve needle, thrust spring is located at respectively long valve needle and short valve needle rear end, thrust spring rear is provided with pressure adjusting part, it is characterized in that, also comprise steel ball positioning rod, steel ball, piston rod and piston sleeve, piston rod is placed in piston sleeve, the rear end of described long valve needle and short valve needle is equipped with tapped hole, described piston rod one end is provided with outside thread, long valve needle and short valve needle are threaded with the male thread portion of piston rod by tapped hole respectively, the piston rod the other end is bowl-shape, bowl structure bottom is provided with conical tank, in conical tank, be provided with steel ball, steel ball opposite side is arranged in the circular cone bracket of steel ball positioning rod, insert in thrust spring steel ball positioning rod rear end, thrust spring rear Bonding pressure adjusting part.
2. steel ball guidance type inlet valve according to claim 1, is characterized in that, described valve body top is also provided with exhaust port, exhaust port be provided with sealing screw rod.
3. steel ball guidance type inlet valve according to claim 1 and 2, it is characterized in that, described pressure adjusting part comprises pressure regulating cylinder body, pressure adjusting screw, pressure adjusting screw seat, Compress Spring, Compress Spring seat, star seal ring, spring seat push rod, spring seat push rod cover plate, spring seat guide rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320804547.8U CN203604757U (en) | 2013-12-10 | 2013-12-10 | Steel ball guide type feeding valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320804547.8U CN203604757U (en) | 2013-12-10 | 2013-12-10 | Steel ball guide type feeding valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203604757U true CN203604757U (en) | 2014-05-21 |
Family
ID=50717431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320804547.8U Ceased CN203604757U (en) | 2013-12-10 | 2013-12-10 | Steel ball guide type feeding valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203604757U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108773A (en) * | 2015-08-20 | 2015-12-02 | 温州乐控节能科技有限公司 | Robot joint and robot |
-
2013
- 2013-12-10 CN CN201320804547.8U patent/CN203604757U/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108773A (en) * | 2015-08-20 | 2015-12-02 | 温州乐控节能科技有限公司 | Robot joint and robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20180330 Decision number of declaring invalidation: 35357 Granted publication date: 20140521 |
|
| IW01 | Full invalidation of patent right |