CN211145535U - Improved structure of quantitative feeding valve - Google Patents
Improved structure of quantitative feeding valve Download PDFInfo
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- CN211145535U CN211145535U CN201921733558.5U CN201921733558U CN211145535U CN 211145535 U CN211145535 U CN 211145535U CN 201921733558 U CN201921733558 U CN 201921733558U CN 211145535 U CN211145535 U CN 211145535U
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- valve
- seal ring
- cylinder
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Abstract
The utility model relates to an improved structure of a quantitative feeding valve, which comprises an upper cylinder, a lower cylinder, a top cover and a bottom cover, wherein the upper cylinder is internally provided with an upper piston in an upper cylinder chamber, the lower cylinder is internally provided with a lower piston in a lower cylinder chamber, and a piston rod extends upwards into a valve orifice so as to keep an open feeding orifice in the up-down stroke and control to close a feeding hole or a discharging orifice; the lower cylinder is mainly equipped with first positioning ditch, locating hole and third positioning ditch toward the outer concave according to the preface in valve orifice bottom to set up oil seal seat, first seal ring, third seal ring respectively, and the second seal ring then cooperates the piston rod to set up in the second positioning ditch of oil seal seat, make oil blanket device and oil seal seat can install the first seal ring of higher leak protection type and second seal ring, in order to improve leak protection nature and life, and convenient processing, assemblage and dismantlement maintenance, and reach the accurate ration pay-off of trace type.
Description
Technical Field
The utility model relates to a ration delivery valve field indicates a ration delivery valve improvement structure especially.
Background
The existing quantitative feeding valve is mainly used for sequentially feeding liquid materials or semi-solid raw materials in a quantitative mode so as to meet the actual requirements of various industries.
The utility model discloses an applicant has utility model patent No. M241396 "ration material feeding jar", it is mainly provided with the piston in the last jar of last jar, and lower jar is provided with down the piston in the jar is indoor down, and the piston rod up stretches into in the valve orifice to keep open pay-off pore in last down journey, and controlled feed inlet or discharge orifice of closing, with oil, liquid raw materials and semi-solid raw materials are sent out to the ration one by one. However, when the quantitative feeding cylinder is designed for micro precise quantitative feeding, the diameter of the piston rod and the corresponding bore diameter of the valve bore must be further reduced, so that a high leakage-proof seal ring cannot be assembled in a deep and long valve bore, and the assembly, disassembly and maintenance are more difficult, which wastes manpower and time and affects the leakage-proof effect and the precision of the discharging amount. Therefore, it is an objective of the present invention to provide a solution to the above-mentioned shortcomings and drawbacks of the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a ration delivery valve improvement structure, mainly the valve orifice bottom of lower jar is according to the preface toward the outer concave first location ditch that is equipped with, locating hole and third location ditch, in order to set up the oil blanket seat respectively, first seal ring, the third seal ring, and the second seal ring then cooperates the piston rod to set up in the second location ditch of oil blanket seat, make oil blanket device and oil blanket seat can install the first seal ring of higher leak protection type and second seal ring, in order to improve leak protection nature and life, and convenient processing, assemblage and dismantlement maintenance, and reach the accurate ration pay-off of trace type.
In order to achieve the above object, the utility model discloses a quantitative feeding valve improvement structure contains: an upper cylinder is provided with an upper cylinder chamber, an upper piston and a piston rod are movably arranged in the upper cylinder chamber, and the lower section of the upper cylinder chamber is outwards provided with a feeding hole channel communicated with the bottom of the upper cylinder; the lower cylinder is combined below the upper cylinder, the lower cylinder is provided with a lower cylinder chamber and a communicated valve hole channel, a lower piston is movably arranged in the lower cylinder chamber, the upper section and the lower section of the lower cylinder chamber are respectively provided with a compressed air port outwards, a piston rod of the lower piston upwards extends into the valve hole channel, the valve hole channel is respectively provided with a feeding port, a discharging hole channel and a feeding hole channel communicated with the top of the lower cylinder outwards, the feeding hole channels of the upper cylinder and the lower cylinder are correspondingly communicated, the piston rod of the lower piston keeps an open feeding hole channel in the up-down stroke and is controlled to close the feeding port or the discharging hole channel; wherein: the lower cylinder is provided with a first positioning groove which is concave outwards at the bottom end of the valve hole, the bottom end of the first positioning groove is provided with a positioning hole which is concave outwards, the positioning hole extends downwards and is communicated with the lower cylinder chamber, and the wall of the positioning hole is provided with a third positioning groove; an oil seal device is provided with an oil seal seat, a first seal ring, a second seal ring and a third seal ring, wherein the oil seal seat is arranged in the positioning hole, the oil seal seat is provided with a shaft hole corresponding to the valve hole channel, a second positioning groove is concavely arranged on the wall of the shaft hole, the first seal ring is arranged in the first positioning groove of the valve hole channel, the second seal ring is arranged in the second positioning groove of the oil seal seat, and the third seal ring is arranged in the third positioning groove of the positioning hole, so that the peripheral wall of a piston rod of the lower piston is in through contact with the first seal ring and the second seal ring.
In an embodiment of the present invention, the first positioning groove of the lower cylinder is set to be downwardly open and stepped, and the first sealing ring contacts with the top end of the oil seal seat.
In an improved structure of the quantitative feeding valve, the first sealing ring and the second sealing ring are oil sealing rings.
In an improved structure of the quantitative feeding valve, the third sealing ring is an O-ring.
In an improved structure of the quantitative feeding valve, a positioning member is disposed at a top end of the lower cylinder chamber of the lower cylinder, and the positioning member is blocked at a bottom end of the oil seal seat.
In an embodiment, the oil seal seat and the shaft hole are provided with a through hole penetrating radially above the second seal ring and the third seal ring, and the lower cylinder is provided with a through hole communicating with the through hole.
In an embodiment, the lower cylinder has a positioning hole at the top end thereof, and the oil seal seat has a pin hole at the top end thereof.
In the improved structure of the quantitative feeding valve, the positioning member is a detachable retaining ring, and the bottom end of the oil seal seat is provided with two detachable screw holes.
In the improved structure of the quantitative feeding valve, the upper section of the upper cylinder chamber is provided with a pore canal outwards communicated with the bottom of the upper cylinder, the feed inlet of the lower cylinder is provided with a pore canal communicated with the top of the lower cylinder, and the pore canals of the upper cylinder and the lower cylinder are correspondingly communicated.
In the improved structure of the quantitative material feeding valve, the upper section of the upper cylinder chamber is provided with a pore canal outwards communicated with the bottom of the upper cylinder, the compressed air port of the lower section of the lower cylinder is provided with a pore canal communicated with the top of the lower cylinder, and the pore canals of the upper cylinder and the lower cylinder are correspondingly communicated.
Drawings
Fig. 1 is a perspective view of a constant-volume feeding valve according to an embodiment of the present invention.
Fig. 2 is an exploded perspective view of a constant volume feed valve according to an embodiment of the present invention.
Fig. 3 is an exploded perspective view of the constant volume feeding valve according to the embodiment of the present invention.
Fig. 4 is an exploded perspective view of the lower cylinder and the oil seal seat of the quantitative feeding valve according to the embodiment of the present invention.
Fig. 5 is a feeding state diagram of the quantitative feeding valve along the section of the feeding hole and the discharging hole channel.
Fig. 6 is an enlarged view of the lower cylinder of fig. 5.
Fig. 7 is a feeding state diagram of a quantitative feeding valve along a feeding hole section according to an embodiment of the present invention.
Fig. 8 is a discharge state diagram of the quantitative feeding valve along the section of the feeding hole and the discharge hole.
Fig. 9 is a discharge state diagram of the quantitative feeding valve along the section of the feeding hole according to the embodiment of the present invention.
Fig. 10 is a perspective view of a constant volume feed valve according to another embodiment of the present invention.
Fig. 11 is a sectional view of a quantitative feeding valve along a feeding hole and a discharging hole according to another embodiment of the present invention.
Fig. 12 is a view of the feeding state of a constant-volume feeding valve according to another embodiment of the present invention, taken along a section of a feeding hole.
Fig. 13 is a sectional view of a quantitative feeding valve along a feeding hole and a discharging hole according to another embodiment of the present invention.
Fig. 14 is a view of the discharge state of a constant-volume feed valve according to another embodiment of the present invention, taken along a section of a feed passage.
Description of the reference numerals
1. Upper cylinder 3, upper piston
11. Upper cylinder chamber 31, piston rod
12. 12', duct 32, stopper
13. Feeding hole 4 and lower piston
14. Fixing hole 41, piston rod
15. Baffle 42 and valve stem
2. Lower cylinder 5 and top cover
21. Lower cylinder chamber 51, channel
211. Cylinder sleeve 52 and screw cap
212. Compressed air port 53, material quantity scale
213. Compressed air port 54, adjusting bolt
22. 22', hole 55 and fixing bolt
23. Feeding hole 56 and fixing hole
24. Feed inlet 57, proximity switch
25. Discharge channel 58, proximity switch
26. Valve hole 6 and bottom cover
261. First positioning groove 61 and fixing hole
262. Positioning hole 62, fixing bolt
263. Third positioning groove 7 and oil seal device
27. Fixing hole 71, oil seal seat
28. Through hole 711 and shaft hole
712. Second positioning groove 76 and positioning piece
713. Through hole 8, partition plate
714. Pin hole 81 and through hole
715. Screw hole 82 and through hole
716. Groove 83, O-ring
72. First seal ring 84, O-ring
73. Second seal ring 85, O-ring
74. Third seal ring 86, fixing hole
75. Fixing pin 9, liquid material.
Detailed Description
To achieve the above objects, the present invention provides a technical means and its effects, which are described in the following with reference to the accompanying drawings:
first, referring to fig. 1 to 7, it can be clearly seen that the improved structure of the quantitative material feeding valve of the present invention comprises an upper cylinder 1, a lower cylinder 2, an upper piston 3, a lower piston 4, a top cover 5, a bottom cover 6, an oil sealing device 7 and a partition plate 8, wherein:
the upper cylinder 1 is provided with an upper cylinder chamber 11, the upper section of the upper cylinder chamber 11 is outwards provided with a pore channel 12 communicated with the bottom of the upper cylinder 1, an upper piston 3, a piston rod 31 and a baffle 15 are movably arranged in the upper cylinder chamber 11, and the lower section of the upper cylinder chamber 11 is outwards provided with a feeding pore channel 13 communicated with the bottom of the upper cylinder 1.
The lower cylinder 2 is combined below the upper cylinder 1, the lower cylinder 2 is provided with a lower cylinder chamber 21 and a communicated valve hole channel 26, a lower piston 4 is movably arranged in the lower cylinder chamber 21, the upper and lower sections of the lower cylinder chamber 21 and the cylinder sleeve 211 are respectively provided with a compressed air port 212 and a compressed air port 213 outwards, a piston rod 41 and a valve rod part 42 of the lower piston 4 extend upwards into the valve hole channel 26, the valve hole channel 26 is respectively provided with a feed port 24 and a discharge hole channel 25 outwards, and a feed hole channel 23 communicated with the top of the lower cylinder 2, the feed port 24 of the lower cylinder 2 is provided with a hole channel 22 communicated with the top of the lower cylinder 2, the hole channels 12 and 22 of the upper cylinder 1 and the lower cylinder 2 are correspondingly communicated with an O-shaped ring 83 through a through hole 81 of a partition plate 8, and the upper cylinder chamber 11 and the lower cylinder chamber 21 are respectively provided with an O-shaped ring 85, the feed hole channels 13 and 23 of the upper cylinder 1 and the lower cylinder 2 are correspondingly communicated with the O-shaped ring 84 through a through hole 82 of the partition plate 8, and the piston rod part, and controlled to close the inlet 24 or outlet 25 to deliver a metered amount of liquid 9.
The top cover 5 is combined on the top end of the upper cylinder 1, the top cover 5 is provided with a channel 51 extending upwards, the front surface of the top cover 5 is provided with a material quantity scale 53 and is assembled with an adjusting bolt 54 and a nut 52 downwards, a proximity switch 57 arranged opposite to the top stopper 32 of the piston rod 31 and a proximity switch 58 arranged corresponding to the downward stroke of the top stopper 32 of the piston rod 31 are combined in a central hole of the adjusting bolt 54, and the fixing holes 14, 27, 56 and 86 of the upper cylinder 1, the lower cylinder 2, the top cover 5 and the clapboard 8 are communicated with each other and are vertically locked and combined by a fixing bolt 55.
The bottom cover 6 is provided at the bottom end of the lower cylinder 2 and the lower cylinder chamber 21, and the bottom cover 6 is provided with a fixing hole 61 and a fixing bolt 62 to be fixed to the fixing hole 27 of the lower cylinder 2 in an upward direction.
The utility model discloses a quantitative feed valve's main characterized in that:
the lower cylinder 2 is provided with a first positioning groove 261 (refer to fig. 6) recessed outward at the bottom end of the valve hole 26, a positioning hole 262 recessed outward at the bottom end of the first positioning groove 261, the positioning hole 262 extending downward and communicating with the lower cylinder chamber 21, and a third positioning groove 263 recessed in the wall of the positioning hole 262.
The oil seal device 7 has an oil seal seat 71, a first seal ring 72, a second seal ring 73, a third seal ring 74, the oil seal seat 71 is disposed in the positioning hole 262 upward, the oil seal seat 71 is provided with a shaft hole 711 corresponding to the valve hole 26, a second positioning groove 712 is concavely disposed on the wall of the shaft hole 711, the first seal ring 72 is disposed in the first positioning groove 261 of the valve hole 26, the first positioning groove 261 is set to be step-shaped and opened downward, the first seal ring 72 contacts the top end of the oil seal seat 71, the second seal ring 73 is disposed in the second positioning groove 712 of the oil seal seat 71, the third seal ring 74 is disposed in the third positioning groove 263 of the positioning hole 262, the first seal ring 72 and the second seal ring 73 can be set as oil seal rings, the third seal ring 74 is set as an O-ring, the top end of the lower cylinder chamber 21 is provided with a positioning member 76, the positioning member 76 is set as a detachable retaining ring to be retained at the bottom end of the oil seal seat 71, so that the piston rod 41 of the lower piston 4 contacts the first seal ring 72 and the second seal ring 73, so as to perform the up-and-down reciprocating motion stroke. Therefore, the valve hole 26, the oil seal device 7 and the oil seal seat 71 of the lower cylinder 2 can be provided with the first sealing ring 72 and the second sealing ring 73 which are higher in leakage resistance, so that the leakage resistance is improved, the service life is prolonged, the processing, the assembly and the disassembly and maintenance are convenient, and the micro precise quantitative feeding is realized.
Referring to fig. 3 to 7, it can be clearly seen that the oil seal seat 71 and the shaft hole 711 are provided with a through hole 713 (see fig. 7) penetrating in the radial direction above the second seal ring 73 and the third seal ring 74, the lower cylinder 2 is provided with a through hole 28 communicating with the through hole 713, the lower cylinder 2 is provided with a fixing pin 75 extending downward at the top end of the positioning hole 262, the top end of the oil seal seat 71 is provided with a pin hole 714 positioned on the fixing pin 75 so that the through hole 28 is connected to the through hole 713, the groove 716 is communicated with the compressed air port 212, and the bottom end of the oil seal seat 71 is provided with two screw holes 715 for disassembly. When the utility model discloses a ration charging valve is in long-term use, if oil seal arrangement 7's first seal ring 72 takes place the wearing and tearing and damages when, the liquid material 9 that first seal ring 72 leaked can be along the perforation 28 of lower cylinder 2 toward discharging outward to avoid in the liquid material 9 infiltration lower cylinder chamber 21. When the first seal ring 72 needs to be replaced, the bottom cover 6 is removed, the retaining ring type positioning member 76 is removed, and then the screw hole 715 of the oil seal seat 71 is locked by a bolt (not shown), so that the oil seal seat 71 can be pulled out downwards, and the first seal ring 72, the second seal ring 73 and the third seal ring 74 can be replaced smoothly.
Referring to fig. 5 to 7, in practical use of the present invention, the liquid material 9 is fed from the feeding port 24 and supplied to the upper compressed air port 212, so that the lower piston 4 is lowered to the bottom dead center, at this time, the liquid material 9 enters the annular channel formed by the upper valve stem 42 of the piston rod 41 of the lower cylinder 2 and the valve orifice 26, and then enters the upper cylinder chamber 11 via the feeding orifice 23 and the feeding orifice 13 of the upper cylinder 1, and lifts the upper piston 3 to make the top end of the piston rod 31 contact the proximity switch 57, so as to complete the first feeding operation and calculate the operation times. Then, as shown in fig. 8 and 9, the lower compressed air port 213 supplies air, the lower piston 4 and the piston rod 41 are lifted to close the feed port 24, the valve rod portion 42 faces the feed port 23 and the discharge port 25, the liquid 9 in the feed port 24 enters the upper cylinder chamber 11 through the ports 12 and 22, the upper piston 3 is pushed down, and the liquid 9 fed in fig. 5 is output from the bottom outlet of the discharge port 25 through the feed ports 13 and 23 and the valve port 26 as shown by arrows. Then, the quantitative charging operation can be performed again as shown in FIG. 5, and the quantitative discharging operation can be performed again as shown in FIG. 8. The adjusting bolt 54 of the top cover 5 of the utility model can be adjusted downward, so that the stroke of the top end of the piston rod 31 contacting the proximity switch 57 is shortened, and the discharge amount can be reduced, thereby achieving the purpose of adjusting and setting various quantitative feeding values.
Referring to fig. 10 to 14, another embodiment of the present invention also includes an upper cylinder 1, a lower cylinder 2, an upper piston 3, a lower piston 4, a top cap 5, a bottom cap 6, an oil seal device 7 and a partition 8, wherein the upper cylinder 11 is provided with a feeding channel 13, the lower cylinder 2 is provided with a feeding channel 23, a feeding port 24 and a discharging channel 25 at a valve hole 26, and the main difference is that an upper section of the upper cylinder 11 is outwardly provided with a channel 12 'communicating with the bottom of the upper cylinder 1, a compressed air port 213 at a lower section of the lower cylinder 2 is provided with a channel 22' communicating with the top of the lower cylinder 2, and the channels 12 ', 22' of the upper cylinder 1 and the lower cylinder 2 are correspondingly communicated to push the upper piston 3 of the upper cylinder 11 to move downward by air pressure.
The above-described embodiments are merely illustrative, and not restrictive, and various changes and modifications may be effected therein by those skilled in the art without departing from the spirit and scope of the invention which is defined in the appended claims.
Claims (10)
1. An improved structure of a quantitative feeding valve comprises:
an upper cylinder is provided with an upper cylinder chamber, an upper piston and a piston rod are movably arranged in the upper cylinder chamber, and the lower section of the upper cylinder chamber is outwards provided with a feeding hole channel communicated with the bottom of the upper cylinder;
the lower cylinder is combined below the upper cylinder, the lower cylinder is provided with a lower cylinder chamber and a communicated valve hole channel, a lower piston is movably arranged in the lower cylinder chamber, the upper section and the lower section of the lower cylinder chamber are respectively provided with a compressed air port outwards, a piston rod of the lower piston upwards extends into the valve hole channel, the valve hole channel is respectively provided with a feeding port, a discharging hole channel and a feeding hole channel communicated with the top of the lower cylinder outwards, the feeding hole channels of the upper cylinder and the lower cylinder are correspondingly communicated, the piston rod of the lower piston keeps an open feeding hole channel in the up-down stroke and is controlled to close the feeding port or the discharging hole channel;
the method is characterized in that:
the lower cylinder is provided with a first positioning groove which is concave outwards at the bottom end of the valve hole, the bottom end of the first positioning groove is provided with a positioning hole which is concave outwards, the positioning hole extends downwards and is communicated with the lower cylinder chamber, and the wall of the positioning hole is provided with a third positioning groove;
an oil seal device is provided with an oil seal seat, a first seal ring, a second seal ring and a third seal ring, wherein the oil seal seat is arranged in the positioning hole, the oil seal seat is provided with a shaft hole corresponding to the valve hole channel, a second positioning groove is concavely arranged on the wall of the shaft hole, the first seal ring is arranged in the first positioning groove of the valve hole channel, the second seal ring is arranged in the second positioning groove of the oil seal seat, and the third seal ring is arranged in the third positioning groove of the positioning hole, so that the peripheral wall of a piston rod of the lower piston is in through contact with the first seal ring and the second seal ring.
2. The improved structure of quantitative feeding valve as claimed in claim 1, wherein the first positioning groove of the lower cylinder is formed in a downward opening step shape, and the first sealing ring contacts with the top end of the oil seal seat.
3. The improved structure of the quantitative feeding valve as claimed in claim 1 or 2, wherein the first sealing ring and the second sealing ring are oil sealing rings.
4. The improved structure of quantitative feeding valve as claimed in claim 3, wherein the third sealing ring is an O-ring.
5. The improved structure of the quantitative feeding valve as claimed in claim 1 or 2, wherein a positioning member is disposed at the top end of the lower chamber of the lower cylinder, and the positioning member is blocked at the bottom end of the oil seal seat.
6. The improved structure of a quantitative feeding valve as claimed in claim 5, wherein the oil seal seat and the shaft hole are provided with a through hole passing through in the radial direction above the second seal ring and the third seal ring, and the lower cylinder is provided with a through hole communicating with the through hole.
7. The improved structure of quantitative feeding valve as claimed in claim 5, wherein the lower cylinder has a fixing pin extending downward from the top of the positioning hole, and the top of the oil seal seat has a pin hole for positioning the fixing pin.
8. The improved structure of quantitative feeding valve as claimed in claim 5, wherein the positioning member is a detachable retaining ring, and the bottom end of the oil seal seat is provided with two detachable screw holes.
9. The improved structure of quantitative material feeding valve as claimed in claim 5, wherein the upper section of the upper cylinder chamber is provided with a hole outwards communicated with the bottom of the upper cylinder, the feeding port of the lower cylinder is provided with a hole communicated with the top of the lower cylinder, and the holes of the upper cylinder and the lower cylinder are correspondingly communicated.
10. The improved structure of quantitative feeding valve as claimed in claim 5, wherein the upper section of the upper cylinder chamber is provided with a hole channel outwardly communicating with the bottom of the upper cylinder, the compressed air port of the lower section of the lower cylinder is provided with a hole channel communicating with the top of the lower cylinder, and the hole channels of the upper cylinder and the lower cylinder are correspondingly communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921733558.5U CN211145535U (en) | 2019-10-16 | 2019-10-16 | Improved structure of quantitative feeding valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921733558.5U CN211145535U (en) | 2019-10-16 | 2019-10-16 | Improved structure of quantitative feeding valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211145535U true CN211145535U (en) | 2020-07-31 |
Family
ID=71771088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921733558.5U Active CN211145535U (en) | 2019-10-16 | 2019-10-16 | Improved structure of quantitative feeding valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211145535U (en) |
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2019
- 2019-10-16 CN CN201921733558.5U patent/CN211145535U/en active Active
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