CN210163107U

CN210163107U - Easy-to-clean filling valve and filling machine

Info

Publication number: CN210163107U
Application number: CN201920508123.4U
Authority: CN
Inventors: 阳年生; 李雄忠
Original assignee: Changsha Fangjin Technology Co ltd
Current assignee: Changsha Fangjin Technology Co ltd
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2020-03-20
Anticipated expiration: 2029-04-16

Abstract

The utility model provides an easy-cleaning filling valve, which comprises a three-way block, a valve core support, a valve core and a filling pipe, wherein the valve core can be arranged on the valve core support in a vertical sliding way and is controlled by a driving mechanism to move up and down; the top that makes the lower port in the case mounting hole of locating of the upper portion water proofness of case forms the blind end, and the case from top to bottom passes lower port, first interface, cavity, second interface and upper port in proper order and extends to irritate the exit, and the bottom of case is the spherical crown of an indent, and the fillet radius of transition between this spherical crown and the case bottom face of cylinder is not more than 1.5mm, and the bottom of case is equipped with the sealing washer, the bottom of case when closed position with irritate the bottom parallel and level of exit. The channel from the inflow port to the irrigation port has no dead angle, and is easier to clean. Meanwhile, when the valve core moves to the closing position, the bottom end of the valve core is flush with the bottom end of the filling outlet, so that the dripping leakage cannot occur, the same filling amount is ensured every time, and the filling precision is improved. A filling machine using the filling valve is also provided.

Description

Easy-to-clean filling valve and filling machine

Technical Field

The utility model relates to a filling technical field specifically has related to an easily wash filling valve. In addition, the filling machine applying the easy-cleaning filling valve is also related.

Background

The filling valve is one of the main components commonly used in filling machines, the filling valve needs to continuously open and close the discharge port according to the requirements so as to continuously complete the filling operation, and the precision of the filling valve plays a decisive role in the precision of the material amount filled in the container to be filled, so that the technical personnel in the field aim to improve the precision and the reliability of the filling valve. In practice, the applicant's researchers have found that the problem of dripping of the filling valve is also an important aspect affecting accuracy, and in addition, easy cleaning is one of the practical requirements of the filling valve.

Therefore, how to improve and optimize the structure of the filling valve, so that the structure is simple, the precision is high, and the safety and reliability are important technical problems which are urgently needed to be solved by the technical personnel in the field.

Disclosure of Invention

The utility model aims at providing a filling valve makes the simple structure of this valve for precision when the filling is higher, and/or easily wash, the utility model discloses a still another purpose is to provide the liquid filling machine of using above-mentioned filling valve.

Therefore, the utility model relates to an easily wash filling valve, include:

the three-way block is provided with a first interface, a cavity and a second interface which are longitudinally communicated and sequentially arranged from top to bottom, and an inflow port which is transversely arranged and communicated with the cavity;

the valve core support is tightly fixed on the upper part of the three-way block and is provided with a lower port which is in butt joint with the first interface by adopting a spigot structure, and a valve core mounting hole, a valve core and a driving mechanism for controlling the valve core to move up and down are arranged above the lower port;

the filling pipe is tightly arranged at the lower part of the three-way block and is provided with an upper port which is in butt joint with the second interface by adopting a spigot structure and a filling outlet with a smaller inner hole diameter at the bottom;

the inner side of the butt joint of the first interface and the lower port is sealed by a first sealing gasket, and the inner side of the butt joint of the second interface and the upper port is sealed by a second sealing gasket; the upper portion of the valve core is arranged in the valve core mounting hole in a watertight mode, so that a closed end is formed above the lower port, the valve core sequentially penetrates through the lower port, the first connector, the cavity, the second connector and the upper port from top to bottom and then extends to the filling opening, the bottom end of the valve core is an inwards-concave spherical crown with the radius 2-10 times that of the bottom of the valve core, the radius of a transition fillet between the spherical crown and the cylindrical surface of the bottom of the valve core is not larger than 1.5mm, a sealing ring matched with an inner hole of the filling opening is arranged at the bottom of the valve core, and the bottom end of the valve core is flush with the bottom end of the filling opening in a closed position.

Preferably, the cavity is a longitudinal cylindrical hole. Preferably, the diameter of the cylindrical hole of the cavity is larger than the diameters of the orifices of the first port and the second port, and conical hole transition is adopted between the cylindrical hole and the orifices of the first port and the orifices of the second port.

Preferably, the inflow opening extends inwardly into the cavity as a transverse cylindrical bore. Preferably, the diameter of the transverse cylindrical hole is smaller than that of the cavity, and the intersecting line of the transverse cylindrical hole and the cavity is not in contact with the upper end and the lower end of the cavity.

Preferably, the radius of the spherical crown is 3-6 times of the radius of the valve core bottom. Preferably 3 times, 3.5 times, 4 times, 4.5 times, 5 times, 5.5 times, 6 times.

Preferably, the radius of a transition fillet between the spherical crown and the cylindrical surface at the bottom of the valve core is not more than 1 mm.

Preferably, the first interface comprises a male spigot, and the lower interface comprises a female spigot corresponding to the male spigot; or the first interface comprises a concave spigot, and the lower port comprises a convex spigot corresponding to the concave spigot.

Preferably, the second port comprises a female spigot, and the upper port comprises a male spigot corresponding to the female spigot; or the second interface comprises a convex spigot, and the upper port comprises a concave spigot corresponding to the convex spigot.

Preferably, the inner hole of the filling opening is a cylindrical hole.

Preferably, the first gasket is a class B gasket and the second gasket is a class B gasket.

Preferably, the driving mechanism adopts an air cylinder. The valve core support is fastened on the three-way block through a bolt, and the filling pipe is fastened on the three-way block through a bolt.

Preferably, a chamfer is adopted between the bottom end surface and the outer cylindrical surface of the irrigation port. Preferably, the chamfer is 10 to 45 degrees, preferably 10 to 30 degrees.

Furthermore, the utility model discloses still relate to a liquid filling machine, this liquid filling machine include among the above-mentioned arbitrary technical scheme easy washing filling valve.

Compared with the background art, the beneficial effects of the utility model are roughly as follows.

The utility model relates to an easy-cleaning filling valve, which comprises a three-way block, a valve core support, a valve core and a filling pipe, wherein the valve core is arranged on the valve core support in a vertically sliding manner and is controlled by a driving mechanism to move vertically; the upper portion of the valve core is arranged in the valve core mounting hole in a water-tight mode, so that a closed end is formed above the lower port of the valve core support, the valve core sequentially penetrates through the lower port, the first interface, the cavity, the second interface and the upper port from top to bottom and then extends to the filling outlet, the bottom end of the valve core is an inwards-concave spherical crown with the radius 2-10 times that of the bottom of the valve core, the radius of a transition fillet between the spherical crown and the cylindrical surface of the bottom of the valve core is not larger than 1.5mm, a sealing ring matched with an inner hole of the filling outlet is arranged at the bottom of the valve core, and the bottom end of the valve core is flush with the bottom end of the filling outlet when in a closed position. The channel from the inflow port to the irrigation port of the three-way block has no dead angle, and the channel can be cleaned easily by flushing water from the inflow port or the irrigation port, namely the channel is easier to clean when being cleaned. Meanwhile, when the valve core moves downwards to the closing position, the bottom end of the valve core is flush with the bottom end of the filling outlet, and the bottom end of the valve core is an inwards concave spherical crown, so that the material residue on the bottom end face of the valve core is a certain amount, and the amount is enough borne by the surface tension, so that the dripping leakage is avoided, the same filling amount is ensured, and the filling precision is improved.

The objects, features and solutions of the present invention can be applied jointly or independently in any combination. Not all objects or features may be required to be combined in each claim.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic longitudinal sectional view of an easy-to-clean filling valve according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of an alternative embodiment of the three-way block of fig. 1.

Fig. 3 is a schematic perspective view of an alternative embodiment of the cartridge seat of fig. 1, which is angled for viewing.

Fig. 4 is a schematic perspective view of an alternative embodiment of the valve cartridge of fig. 1.

Fig. 5 is a schematic perspective view of an alternative embodiment of the filling tube of fig. 1.

Detailed Description

In order to make the technical solutions related to the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that, in a non-conflicting manner, the embodiments and the specific features described in the embodiments in the present application may be combined in any suitable manner; in order to avoid unnecessary repetition, the present invention does not separately describe every possible combination of components, and should be considered as the disclosure of the present invention as long as the combination does not violate the spirit of the present invention.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, fig. 1 is a schematic longitudinal sectional view of an easy-to-clean filling valve according to an embodiment of the present invention; FIG. 2 is a schematic perspective view of an alternative embodiment of the three-way block of FIG. 1; FIG. 3 is a schematic perspective view of an alternative embodiment of the cartridge seat of FIG. 1, the cartridge seat being angled for viewing; FIG. 4 is a schematic perspective view of an alternative embodiment of the valve cartridge of FIG. 1; fig. 5 is a schematic perspective view of an alternative embodiment of the filling tube of fig. 1.

In a specific embodiment, as shown in fig. 1, the present invention provides an easy-to-clean filling valve, which comprises a three-way block 10, a valve core support 20, a valve core 30, a driving mechanism 40, and a filling pipe 50. As shown in fig. 1 and 2, the three-way block 10 includes a first port 11, a cavity 12, a second port 13, and an inflow port 14, an upper portion of the cavity 12 communicates with the first port 11, a lower portion of the cavity 12 communicates with the second port 13, the inflow port 14 communicates with the cavity 12, and the inflow port 14 is disposed laterally or horizontally.

Referring to fig. 1 and 3, a valve core support 20 is fastened to an upper portion of the three-way block 10, the valve core support 20 has a lower port 21 and a valve core installation hole 22, the lower port 21 is abutted to the first port 11, a valve core 30 is installed in the valve core installation hole 22, and a driving mechanism 40 for controlling the valve core 30 to move up and down is arranged above the lower port 21 of the valve core support 20.

Referring to fig. 1 and 5, the filling tube 50 is fastened to the lower portion of the three-way block 10, the filling tube 50 includes an upper port 51, a filling outlet 52 at the bottom, the upper port 51 is butted against the second port 13, and the inner bore 521 of the filling outlet 52 has a smaller diameter than the inner bore 53 of the filling tube 50.

As shown in fig. 1 and 2, the inner side of the first port 11, which is in contact with the lower port 21, is sealed with a first gasket 01, and the inner side of the second port 13, which is in contact with the upper port 51, is sealed with a second gasket 02.

Referring to fig. 1, 2 and 4, the upper portion 31 of the valve core 30 is disposed in the valve core mounting hole 22 in a watertight manner, that is, the upper portion 31 maintains a watertight manner in terms of water after a sealing element is disposed in the valve core mounting hole 22 or a sealing structure is adopted. After the upper portion 31 of the upper valve core 30 is installed in the valve core installation hole 22, the upper part of the upper port 21 is in a closed state, i.e. a closed end is formed. As shown in fig. 1, the valve core 30 sequentially passes through the lower port 21, the first port 11, the cavity 12, the second port 13 and the upper port 51 from top to bottom and then extends to the filling outlet 52.

Referring to fig. 1, the bottom end of the valve core 30 is an inward concave spherical crown 33, the radius of the spherical crown 33 is 2-10 times of the radius of the bottom 32 of the valve core 30, the radius of a transition fillet between the spherical crown 33 and the cylindrical surface of the bottom 32 of the valve core 30 is not more than 1.5mm, and a sealing ring 34 is arranged on the bottom 32 of the valve core 30. In fig. 1, the valve cartridge 30 is in the high position, i.e. the filling valve is in the open position; when the valve core 30 is moved downward until the bottom end of the valve core 30 is flush with the bottom end 522 of the pouring spout 52 (i.e. the lower position of the spherical cap 33 is flush with the bottom end 522 of the pouring spout 52), that is, the filling valve is in the closed position, referring to fig. 1 and the above description, the closed position is easily illustrated and understood by those skilled in the art, so that the drawings in the closed position are not provided in the present application. In the closed position, the sealing ring 34 forms a seal with the inner bore 521 of the inlet 52 such that the inlet 52 is in a closed position, i.e., the sealing ring 34 engages the inner bore 521 of the inlet 52.

In a further preferred embodiment, as shown in fig. 1 and 2, the cavity 12 is a longitudinal cylindrical bore. The diameter of the cylindrical hole of the cavity 12 is larger than that of the hole 111 of the first connector 11, the diameter of the cylindrical hole of the cavity 12 is larger than that of the hole 131 of the second connector 13, the cylindrical hole of the cavity 12 is in transition with the hole 111 through a conical hole 15, and the cylindrical hole of the cavity 12 is in transition with the hole 131 through a conical hole 16.

As shown in fig. 1 and 4, the valve core 30 has a sealing ring groove 35 at the bottom 32, and the sealing ring groove 35 is used for installing a sealing ring 34. In addition, the sealing ring groove 35 in which the sealing ring 34 is mounted can be replaced by any suitable known technique.

In a further preferred embodiment, as shown in fig. 1 and 2, the inflow opening 14 extends inwardly into the cavity 12 as a transverse cylindrical bore 141. Preferably, the diameter of the transverse cylindrical hole 141 is smaller than that of the cavity 12, and the intersecting line of the transverse cylindrical hole 141 and the cavity 12 is not in contact with the upper and lower ends of the cavity 12. That is, the height of the cylindrical hole of the cavity 12 in the vertical direction is significantly larger than the diameter of the cylindrical hole 141.

On the basis of any one of the above embodiments, further improvements can be made. As shown in fig. 1 and 2, the first port 11 includes an orifice 111, a seal groove 112, and a female spigot 113, the diameter of the seal groove 112 is larger than that of the orifice 111, and the diameter of the seal groove 112 is smaller than that of the female spigot 113. As shown in fig. 1 and 3, the lower port 21 includes a seal groove 211 and a male end 213, and the diameter of the male end 213 is larger than that of the seal groove 211. The seal groove 112 corresponds to the seal groove 211 and is used for mounting the first gasket 01. Of course, according to actual needs, the first seal gasket 01 does not need to be grooved on both sides, and the proper seal gasket and seal structure can be grooved only on one side, or even only one stepped hole is needed without adopting any proper mode such as a special seal groove. The diameter of the seal groove 112/211 is smaller than the female spigot 113/male spigot 213 diameters so that the spigot structure is outside the seal structure, but there is no dead space inside the seal structure for cleaning. In addition, in an embodiment not shown, the locations of the mating female and

male stops

113 and 213 may be interchanged, such as the male stop on the first port 11 and the female stop on the lower port 21.

On the basis of any one of the above embodiments, further improvements can be made. Referring to fig. 1 and 2, the second port 13 includes a hole 131, a seal groove (not shown) having a diameter larger than that of the hole 131, and a female spigot (not shown) having a diameter smaller than that of the female spigot. As shown in fig. 1 and 5, the upper port 51 includes a seal groove 512 and a boss 513, and the boss 513 has a diameter larger than that of the seal groove 512. The seal groove on the second port 12 corresponds to the seal groove 512 and is used together for mounting the second gasket 02. Reference is also made to the aforementioned structure in which the first port 11 and the lower port 21 are fitted to each other. Of course, according to actual needs, the second seal gasket 02 is not required to be provided with grooves on both sides, and by adopting a suitable seal gasket and seal structure, only one side can be provided with a groove, or even only one step hole is required without adopting various suitable modes such as a special seal groove. The diameter of the seal groove/seal groove 512 of the second port is smaller than the diameter of the female/male seam allowance 513 of the second port 13 so that the seam allowance structure is outside the seal structure and so that there is no dead space inside the seal structure for cleaning. In addition, in an embodiment not shown, the locations of the female and male stops 513 of the mating second port 13 may be interchanged, such as the male stop on the second port 13 and the female stop on the upper port 51.

On the basis of any one of the above embodiments, further improvements can be made. Referring to fig. 1, the radius of the spherical cap 33 is 3-6 times the radius of the bottom 32 of the valve core 30. Preferably 3 times, 3.5 times, 4 times, 4.5 times, 5 times, 5.5 times, 6 times.

In a preferred embodiment, and as shown with reference to fig. 1, the radius of the fillet at the transition between the spherical cap 33 and the cylindrical surface of the bottom 32 of the valve core 30 is no greater than 1 mm.

In a preferred embodiment, as shown in fig. 1 and 3, a packing hole 221 is formed in the cartridge mounting hole 22, and two packing holes 221 are shown in fig. 1 and 3, and two packing is installed to ensure sealability between the upper portion 31 of the cartridge 30 and the cartridge mounting hole 22. If a sealing element with better sealing performance is adopted, only one sealing element can be used, and only one corresponding sealing ring hole 221 can be arranged at the moment, although the specific structure may be different, a person skilled in the art can make adaptive design adjustment according to different adopted sealing elements. In addition, the sealing structure can adopt other various suitable prior art schemes, and the details are not described herein.

In a preferred embodiment, as shown in FIG. 1, the inner bore 521 of the outlet 52 is a cylindrical bore. In addition, a conical bore having a diameter that does not vary much may also be used. As shown in fig. 1 and 5, the inner bore 53 of the filling tube 50 extends from the upper port 51 to the outlet port 54, and the inner bore 53 and the inner bore 521 of the outlet port 54 form a through hole extending longitudinally therethrough. Of course, since the filling tube 50 is a tube, the tube is always present in the filling tube 50, and the inner hole 53 and the inner hole 521 form a tube. As shown in fig. 1 and 5, the inner hole 53 is a cylindrical hole, and a transition conical hole is formed between the inner hole 53 and the inner hole 521, and obviously, the inner hole 53 is larger than the inner hole 521.

In a preferred embodiment, and as shown with reference to FIG. 1, the first gasket 01 is a class B gasket and the second gasket 02 is a class B gasket. The specific structure and parameters of the gasket can refer to related design manuals or technical albums and other data, which are not described in detail in the application and are sufficient.

In a preferred embodiment, and as shown with reference to FIG. 1, the drive mechanism 40 employs an air cylinder. As shown in fig. 4, the top of the valve core 30 has a connecting hole 36. As shown in fig. 1, the lower portion of the driving mechanism 40 has a connection head 41. The connection head 41 is connected to the connection hole 36, so that the driving mechanism 40 moves the valve body 30 up and down. Of course, the driving mechanism 40 can also be connected to the valve core 30 to drive the valve core 30 to move up and down by adopting various prior art schemes, and the illustration is only a very simple structure, which is convenient and practical. Of course, various other suitable prior art techniques, such as snap-fit arrangements, etc., may also be employed.

In a preferred embodiment, and as shown in FIGS. 1 and 5, the bottom end 522 of the spout 52 is a flat surface, and a chamfer 524 is provided between the bottom end surface of the spout 52 and the outer cylindrical surface 523. Preferably, the chamfer angle is 10 to 45 degrees, more preferably 10 to 30 degrees.

In a preferred embodiment, referring to fig. 1, 2 and 3, a threaded hole 17 is formed in the three-way block 10, a hole 23 corresponding to the threaded hole 17 is formed in the valve core support 20, and a bolt is passed through the hole 23 and then is engaged with the threaded hole 17 and screwed, so that the valve core support 20 can be fastened to the three-way block 10, in fig. 2 and 3, four pairs of threaded holes 17 and corresponding holes 23 are formed, and the threaded hole 17 is located outside the first connector 11, which is an optional arrangement, a relatively simple structure, and various other suitable fastening manners. Referring to fig. 1, 2 and 5, the filling tube 50 is provided with holes 54 which are matched with threaded holes (on the other side opposite to 17 indicated in fig. 2) on the three-way block 10, and the filling tube 50 can be fastened on the three-way block 10 by bolts which are passed through the holes 54 and then matched with and screwed into the threaded holes on the three-way block 10, in fig. 2 and 5, the holes 54 and the corresponding threaded holes are also four pairs, and the corresponding threaded holes are located outside the second port 13, which is an optional arrangement, a relatively simple structure, and various other suitable fastening manners.

Furthermore, the utility model discloses still relate to a liquid filling machine, this liquid filling machine includes above-mentioned arbitrary embodiment easy washing filling valve. The filling machine has some or all of the technical advantages of the easy-to-clean filling valve described above. For the specific embodiment, please refer to the above contents, and combine with the related prior art to obtain the technical solution of the filling machine, which is not described in detail in this application.

The filling valve and the filling machine using the filling valve provided by the invention are described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that those skilled in the art will be able to devise numerous alternative designs and embodiments for practicing the invention within the scope of the appended claims without departing from the principles of the invention.

Claims

1. An easy-to-clean filling valve, comprising:

2. The easy-to-clean filling valve according to claim 1, wherein the cavity is a longitudinal cylindrical hole, the diameter of the cylindrical hole of the cavity is larger than the diameter of the openings of the first port and the second port, and conical hole transition is adopted between the cylindrical hole and the openings of the first port and the second port.

3. The easy-to-clean filling valve according to claim 1, wherein the inflow port extends inwardly to the cavity as a transverse cylindrical bore having a diameter smaller than that of the cavity, and wherein a line intersecting the cavity and the transverse cylindrical bore is not in contact with both the upper and lower ends of the cavity.

4. The easy-to-clean filling valve according to claim 1, wherein the radius of the spherical cap is 3-6 times of the radius of the valve core bottom, and the radius of the fillet of the transition between the spherical cap and the cylindrical surface of the valve core bottom is not more than 1 mm.

5. The easy-to-clean filling valve according to any one of claims 1 to 4, wherein the first port comprises a male spigot and the lower port comprises a female spigot corresponding to the male spigot; or the first interface comprises a concave spigot, and the lower port comprises a convex spigot corresponding to the concave spigot.

6. The easy clean filling valve of any one of claims 1 to 4, wherein the second port comprises a female spigot and the upper port comprises a male spigot corresponding to the female spigot; or the second interface comprises a convex spigot, and the upper port comprises a concave spigot corresponding to the convex spigot.

7. The easy-to-clean filling valve according to any one of claims 1 to 4, wherein the inner hole of the filling port is a cylindrical hole; a chamfer angle is adopted between the bottom end surface of the filling port and the outer cylindrical surface, and the chamfer angle is 10-30 degrees or 30-45 degrees.

8. The easy clean filling valve of any one of claims 1 to 4, wherein the first gasket is a class B gasket and the second gasket is a class B gasket.

9. The easy-to-clean filling valve according to any one of claims 1 to 4, wherein the driving mechanism employs a cylinder; the valve core support is fastened on the three-way block through a bolt, and the filling pipe is fastened on the three-way block through a bolt.

10. A filling machine, characterized in that it comprises an easy-to-clean filling valve as claimed in any one of claims 1 to 9.