Granular electronic fill valve with backflow control

Abstract

The utility model relates to filling equipment technical field especially relates to a granular electronic filling valve with backflow control, including speed regulating valve subassembly, filling subassembly and install backflow control valve subassembly on filling subassembly, the speed regulating valve subassembly includes upper cylinder, lower cylinder and installs the connecting seat between upper cylinder and lower cylinder, the connecting seat middle part is equipped with piston rod, the inside hollow of open valve bush, the nut is equipped with in the lower end of valve core passes through hollow open valve bush, open sleeve valve is equipped with spring clamp plate on, and spring clamp plate is clamped on open valve bush, reset spring is equipped between spring clamp plate and lower valve body. The utility model can realize big granule and super big granule beverage filling, adopts initiative backflow control and fast and slow filling speed adjustment, and simultaneously constructs automatic control liquid level when filling without flowmeter, when granule is blocked, automatic dredging, saves the cost, guarantees filling effect stability, simple structure, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of filling valve technology, and in particular to a granular electronic filling valve with reflux control. Background Technology

[0002] Particle filling valves are a type of filling valve commonly used in the beverage filling industry, mainly for filling beverages containing fruit pulp or other particles.

[0003] Granule filling valves are commonly used in the beverage filling industry, primarily for filling beverages containing fruit pulp or other granules. Most existing granule filling valves are either measuring cup type or peristaltic pump type. In actual granule filling, it is generally done in two stages: first, a certain amount of material containing granules is filled using the granule filling valve, and then the syrup filling valve is used to fill the syrup to reach the required product volume. This filling method requires two filling machines to work together, which occupy a large area and have relatively high energy consumption. Although there are filling valves on the market that can simultaneously fill granules and syrup, these valves are limited by the size of the bottle opening, resulting in a narrow annular filling channel between the inner wall of the tubular filling nozzle and the central vent pipe, leading to slow feeding speed and affecting filling efficiency. Furthermore, the bottle opening size limitation makes the vent easily clogged by beverage particles, thus affecting filling quality. Summary of the Invention

[0004] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a granular electronic filling valve with reflux control. It has a large internal channel to achieve filling of large and extra-large granules of beverages. It adopts active reflux control and fast / slow filling speed adjustment. At the same time, it automatically controls the liquid level during filling without the need for a flow meter. When the granules are blocked, it automatically clears the blockage, saves costs, ensures the stability of filling effect, has a simple structure, and is easy to use.

[0005] To achieve the above objectives, this technical solution provides a granular electronic filling valve with reflux control, comprising a speed control valve assembly, a filling assembly, and a reflux control valve assembly mounted on the filling assembly. The speed control valve assembly includes an upper cylinder, a lower cylinder, and a connecting seat mounted between the upper and lower cylinders. A piston rod is provided in the middle of the connecting seat. A first cavity is formed between the upper cylinder and the connecting seat; a second cavity is formed between the connecting seat and the lower cylinder. A first piston is provided in the first cavity, and a second piston is provided in the second cavity. The filling assembly includes a valve seat, an upper valve body mounted on the valve seat, and a lower valve body. A valve core is provided inside the lower valve body. The upper part of the valve core passes through the lower valve body and is correspondingly installed in the valve seat and connected to the upper valve body. An opening sleeve is provided inside the lower valve body. The opening sleeve is hollow inside, and the lower end of the valve core... A nut is provided through the hollow valve sleeve; a spring pressure plate is provided on the valve sleeve, and the spring pressure plate is locked onto the valve sleeve; a return spring is provided between the spring pressure plate and the lower valve body, and a sealing gasket is also provided at the lower part of the spring pressure plate; the upper part of the valve sleeve is installed in the lower valve body and can move up and down along the inner wall of the lower valve body, and a Glyd ring for holes is provided between the valve sleeve and the inner wall of the lower valve body; the upper valve body is hollow inside and has a material channel, and a material connector communicating with the material channel is provided on one side of the upper valve body; the valve core is hollow inside and has a discharge channel, and the discharge channel is communicating with the material channel; a discharge port is provided at the bottom of the valve core; an umbrella-shaped sealing ring is provided between the nut and the valve core, and the umbrella-shaped sealing ring and the bottom end of the valve sleeve form a sealing structure; the upper valve body is fixed to the valve seat with screws at the corresponding valve core installation position.

[0006] Furthermore, the reflux control valve assembly includes a control valve seat and a cylinder head mounted on the control valve seat. The cylinder head is mounted on the control valve seat via a pressure plate. A piston rod is provided inside the cylinder head. A diaphragm, an insert, and a piston spring are sequentially provided on the piston rod. The diaphragm is centered at the front end of the piston rod. The insert is fitted onto the piston rod, and the edge of the insert is fixed between the control valve seat and the cylinder head. The edge of the diaphragm is fixed between the insert and the control valve seat to form a sealing structure. The piston spring is installed between the insert and the lower end of the piston rod. A buffer pad is provided between the lower end of the piston rod and the cylinder head. A Gladius ring is also provided on the piston rod. An intake port is also provided on the cylinder head.

[0007] Furthermore, the lower valve body is provided with a first return channel communicating with the interior of the lower valve body, and the control valve seat is provided with a second return channel; the first return channel and the second return channel are connected; the diaphragm at the front end of the piston rod can seal the second return channel.

[0008] Furthermore, the valve seat is also provided with a reflux chamber, and the second reflux channel is connected to the reflux chamber.

[0009] Furthermore, the lower end of the first piston extends through the connecting seat into the second cavity and contacts the top of the second piston; the lower end of the second piston extends out of the lower cylinder.

[0010] Furthermore, the upper valve body is provided with a valve cover, which is provided with a spring groove and a valve needle; the lower end of the valve needle is located under the valve cover, and the upper end extends out of the valve cover and is provided with a spring retainer and a valve needle spring in sequence from top to bottom. One end of the valve needle spring contacts the spring retainer and the other end is installed in the spring groove; a bushing and a shaft Glyd ring are provided between the valve needle and the valve cover, and the lower structure of the valve needle is adapted to the material channel in the upper valve body.

[0011] Furthermore, the lower cylinder is provided with an outer sleeve, the lower end of which is mounted on the valve cover.

[0012] The beneficial effects of this utility model are as follows: A granular electronic filling valve with reflux control includes a speed regulating valve assembly, a filling assembly, and a reflux control valve assembly installed on the filling assembly. The speed regulating valve assembly controls the filling speed. The filling assembly includes a valve seat, an upper valve body and a lower valve body installed on the valve seat. A valve core is provided in the lower valve body, and an opening valve sleeve is provided between the lower valve body and the valve core. The opening valve sleeve can move up and down in the lower valve body. A discharge port is opened at the lower part of the valve core. In the closed state, the opening valve sleeve closes the discharge port. When the bottle is filled, the opening valve sleeve is lifted up during the upward process of the bottle, and then the discharge port of the valve core is exposed for filling. A spring for reset is provided on the opening valve sleeve. After the filling program is completed, the reset spring resets the opening valve sleeve and reseals the discharge port on the valve core. This utility model can realize the filling of ultra-large particles, and has functions such as fast and slow filling speed adjustment, active reflux control, and automatic liquid level control. When particles are blocked, automatic unblocking is achieved through the internal structure of the valve. Attached Figure Description

[0013] For ease of explanation, the present invention will be described in detail below with reference to the preferred embodiments and accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of a granular electronic filling valve with reflux control according to this utility model.

[0015] Figure 2 This is a schematic diagram of the overall cross-sectional structure of a granular electronic filling valve with reflux control according to this utility model.

[0016] Figure 3 This is a schematic diagram of the reflux control valve structure in a granular electronic filling valve with reflux control according to this utility model;

[0017] Figure 4 This is a diagram showing the process before the contents are placed into the container.

[0018] Figure 5 This is a diagram showing the contents of the container.

[0019] In the diagram: Speed ​​control valve assembly 1, filling assembly 2, reflux control valve assembly 3, upper cylinder 11, lower cylinder 12, connecting seat 13, first cavity 14, second cavity 15, first piston 16, second piston 17, valve seat 21, upper valve body 22, lower valve body 23, valve core 24, valve opening sleeve 25, spring pressure plate 251, nut 243, return spring 252, sealing gasket 253, Glyd ring for hole 254, material channel 221, material connector 222, discharge channel 241 1. Discharge port 242, umbrella-shaped sealing ring 244, screw 4, control valve seat 31, cylinder head 32, pressure plate 33, piston rod 34, diaphragm 35, insert 36, piston spring 37, buffer pad 38, Glyd ring 39, air inlet port 321, first return channel 231, second return channel 311, return chamber 5, valve cover 223, spring groove 224, air valve needle 26, spring retaining ring 261, valve needle spring 262, bushing 27, shaft Glyd ring 28, outer sleeve 121. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection, a sealed connection, or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The following description, with reference to the accompanying drawings, further illustrates a granular electronic filling valve with reflux control according to this utility model:

[0023] like Figure 1-5The illustrated granular electronic filling valve with reflux control includes a speed control valve assembly 1, a filling assembly 2, and a reflux control valve assembly 3 mounted on the filling assembly 2. The speed control valve assembly 1 includes an upper cylinder 11, a lower cylinder 12, and a connecting seat 13 mounted between the upper cylinder 11 and the lower cylinder 12. A piston rod 14 is provided in the middle of the connecting seat 13. A first cavity 14 is formed between the upper cylinder 11 and the connecting seat 13; a second cavity 15 is formed between the connecting seat 13 and the lower cylinder 12. A first piston 16 is provided in the first cavity 14, and a piston rod 14 is provided in the second cavity 15. There is a second piston 17; the lower end of the first piston 16 passes through the connecting seat 13 and extends into the second cavity 15 and contacts the top of the second piston 17; the lower end of the second piston 17 extends out of the lower cylinder 12. The filling speed is controlled by the first piston and the second piston. When the piston does not move downward, it is fast filling; when both the first piston and the second piston are open, it is slow filling. At the same time, in order to make the overall structure compact and enhance protection, an outer sleeve 121 is provided on the lower cylinder 12, and the lower end of the outer sleeve 121 is installed on the valve cover 223 to isolate the space between the valve cover and the lower cylinder.

[0024] In this embodiment, the filling assembly 2 includes a valve seat 21, an upper valve body 22 mounted on the valve seat 21, and a lower valve body 23. A valve core 24 is provided inside the lower valve body 23. The upper valve body 22 is hollow and has a material channel 221. A material connector 222 communicating with the material channel 221 is provided on one side of the upper valve body 22. The valve core 24 is hollow and has a discharge channel 241. The upper part of the valve core 24 passes through the lower valve body 23 and is correspondingly installed in the valve seat 21 and connected to the upper valve body 22, connecting the discharge channel 241 and the material channel 221. Both the material channel and the discharge channel are large channels, allowing for pressureless filling of large-sized granular materials. An opening valve sleeve 25 is provided inside the lower valve body 23. The upper part of the opening valve sleeve 25 is installed inside the lower valve body 23 and can move up and down along the inner wall of the lower valve body 23. To improve sealing, the opening valve sleeve 25 and the lower valve body 23... A Glyd ring 254 for holes is provided between the inner walls; a valve cover 223 is provided on the upper valve body 22, and a spring groove 224 and a valve needle 26 are provided on the valve cover 223; during installation, the lower end of the valve needle 26 is installed on the lower side of the valve cover 223, while the upper end extends out of the valve cover 223 and a spring retainer 261 and a valve needle spring 262 are provided from top to bottom. One end of the valve needle spring 262 contacts the spring retainer 261 and the other end is installed in the spring groove 224; a bushing 27 and a shaft Glyd ring 28 are provided between the valve needle 26 and the valve cover 223 to play a role in lubrication and sealing. The lower structure of the valve needle 26 is adapted to the material channel 221 in the upper valve body 22. When the valve needle moves downward, it can close the material channel, and when it moves upward, it can open the material channel. The opening degree of the valve needle can be controlled by the speed regulating valve assembly to realize the speed control of filling.

[0025] In this embodiment, the valve sleeve 25 is hollow inside, and the lower end of the valve core 24 passes through the hollow valve sleeve 25 and is provided with a nut 243; a spring pressure plate 251 is provided on the valve sleeve 25, and the spring pressure plate is clamped on the outer wall of the valve sleeve; a return spring 252 is provided between the spring pressure plate 251 and the lower valve body 23, one end of the return spring is fixed on the lower valve body and the other end contacts the spring pressure plate; a sealing gasket 253 is also provided below the spring pressure plate 251, and the sealing gasket is used to seal the bottle mouth of the container. When the bottle is inserted, the bottle mouth and the sealing gasket are sealed. A sealed space is formed by contact, and then the bottle continues to be pushed upward, pushing the valve sleeve upward as well; a discharge port 242 is provided at the bottom of the valve core 24; an umbrella-shaped sealing ring 244 is provided between the nut 243 and the valve core 24, and the umbrella-shaped sealing ring 244 and the bottom end of the valve sleeve 25 form a sealing structure; the upper valve body 22 is fixed to the valve seat 21 at the installation position of the valve core 24 and by screws 4. When the valve sleeve is pushed upward, the discharge port will be exposed. At this time, the lower end of the valve core has penetrated into the container bottle, and filling and other actions can be performed.

[0026] In this embodiment, the reflux control valve assembly 3 includes a control valve seat 31 and a cylinder head 32 mounted on the control valve seat 31. The cylinder head 32 is mounted on the control valve seat 31 via a pressure plate 33. A piston rod 34 is provided inside the cylinder head 32. A diaphragm 35, a plug 36, and a piston spring 37 are sequentially provided on the piston rod 34. The center of the diaphragm 36 is located at the front end of the piston rod 34. The plug 36 is fitted onto the piston rod 34, and the edge of the plug 36 is fixed between the control valve seat 31 and the cylinder head 32. The edge of the diaphragm 35 is fixed between the plug 36 and the control valve seat 31 to form a sealing structure, further improving the overall sealing performance. The piston spring 37 is installed between the plug 36 and the lower end of the piston rod 34. A buffer pad 38 is provided between the lower end of the piston rod 34 and the cylinder head 32, and a Gladley ring 39 is also provided on the piston rod 34; the cylinder head 32 is also provided with an air inlet port 321, which can be actively controlled by the reflux control valve assembly to realize automatic control of liquid level, etc. In order to realize the active reflux function, a first reflux channel 231 communicating with the interior of the lower valve body 23 is provided on the lower valve body 23, and a second reflux channel 311 is provided on the control valve seat 31; the first reflux channel 321 is connected to the second reflux channel 311; the diaphragm 35 at the front end of the piston rod 34 can seal the second reflux channel 311 to ensure airtightness, and a reflux chamber 5 is also provided on the valve seat 21, and the second reflux channel 311 is connected to the reflux chamber 5.

[0027] Working principle: First, the container bottle is fed in. The bottle mouth contacts the sealing gasket to form a sealed space. Then, the container bottle continues to be pushed upward by the bottle-supporting cylinder, simultaneously pushing the valve sleeve upward. At this time, the lower part of the valve core and the discharge port on the valve core are inside the container bottle. At the same time, the filling process also begins. First, the speed control valve assembly opens the first and second pistons as needed to control the opening and closing degree of the air valve needle, realizing the control of fast and slow filling. The material first enters the material channel through the material connector and then is discharged into the container bottle through the discharge port through the discharge channel. During the filling process, when the filling head is closed or the filling container is full, excess liquid or pressure remains in the pipeline. This excess liquid is guided back to the return chamber by the reflux control valve through the reflux channel, avoiding excessive pressure that could cause liquid splashing, leakage, or equipment damage. At the same time, the reflux control valve can also adjust the liquid flow path to balance the pipeline pressure, ensuring a stable filling flow rate, thereby improving the consistency of the filling volume. It automatically controls the filling liquid level to ensure filling accuracy. In this embodiment, in order to improve the overall sealing performance, sealing rings are provided between each connecting component for sealing. This is a conventional sealing method in the art and will not be discussed in detail.

[0028] This utility model discloses a granular electronic filling valve with reflux control, comprising a speed regulating valve assembly, a filling assembly, and a reflux control valve assembly installed on the filling assembly. The speed regulating valve assembly controls the filling speed. The filling assembly includes a valve seat, an upper valve body and a lower valve body installed on the valve seat. A valve core is provided in the lower valve body, and an opening valve sleeve is provided between the lower valve body and the valve core. The opening valve sleeve can move up and down in the lower valve body. A discharge port is opened at the lower part of the valve core. In the closed state, the opening valve sleeve closes the discharge port. When the bottle is filled, the opening valve sleeve is lifted upward during the upward process of the bottle, and then the discharge port of the valve core is exposed for filling. A spring for reset is provided on the opening valve sleeve. After the filling process is completed, the reset spring resets the opening valve sleeve and reseals the discharge port on the valve core. This utility model can realize the filling of ultra-large particles, and has functions such as fast and slow filling speed adjustment, active reflux control, and automatic liquid level control. When particles are blocked, the internal structure of the valve can automatically clear the blockage.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A granular electronic fill valve with backflow control, characterized by, The system includes a speed control valve assembly, a filling assembly, and a backflow control valve assembly mounted on the filling assembly. The speed control valve assembly includes an upper cylinder, a lower cylinder, and a connecting seat between the upper and lower cylinders. A piston rod is located in the middle of the connecting seat. A first cavity is formed between the upper cylinder and the connecting seat; a second cavity is formed between the connecting seat and the lower cylinder. A first piston is located in the first cavity, and a second piston is located in the second cavity. The filling assembly includes a valve seat, an upper valve body mounted on the valve seat, and a lower valve body. A valve core is located within the lower valve body. The upper part of the valve core passes through the lower valve body and is correspondingly installed within the valve seat and connected to the upper valve body. An opening valve sleeve is located within the lower valve body. The opening valve sleeve is hollow, and a nut is located at the lower end of the valve core passing through the hollow opening valve sleeve. A spring pressure plate is provided on the valve sleeve, and the spring pressure plate is locked onto the valve sleeve; a return spring is provided between the spring pressure plate and the lower valve body, and a sealing gasket is also provided at the lower part of the spring pressure plate; the upper part of the valve sleeve is installed in the lower valve body and can move up and down along the inner wall of the lower valve body; a Glyd ring for holes is provided between the valve sleeve and the inner wall of the lower valve body; the upper valve body is hollow inside and has a material channel, and a material connector communicating with the material channel is provided on one side of the upper valve body; the valve core is hollow inside and has a discharge channel, which communicates with the material channel; a discharge port is provided at the bottom of the valve core; an umbrella-shaped sealing ring is provided between the nut and the valve core, and the umbrella-shaped sealing ring and the bottom end of the valve sleeve form a sealing structure; the upper valve body is fixed to the valve seat with screws at the corresponding valve core installation position.

2. A granular electronic fill valve with backflow control according to claim 1, characterized in that: The reflux control valve assembly includes a control valve seat and a cylinder head mounted on the control valve seat. The cylinder head is mounted on the control valve seat via a pressure plate. A piston rod is provided inside the cylinder head. A diaphragm, an insert, and a piston spring are sequentially arranged on the piston rod. The diaphragm is centered at the front end of the piston rod. The insert is fitted onto the piston rod, and its edge is fixed between the control valve seat and the cylinder head. The edge of the diaphragm is fixed between the insert and the control valve seat to form a sealing structure. The piston spring is installed between the insert and the lower end of the piston rod. A buffer pad is provided between the lower end of the piston rod and the cylinder head. A Gladley ring is also provided on the piston rod. An intake port is also provided on the cylinder head.

3. A granular electronic fill valve with backflow control according to claim 2, characterized in that: The lower valve body is provided with a first return channel communicating with the interior of the lower valve body, and the control valve seat is provided with a second return channel; the first return channel and the second return channel are connected; the diaphragm at the front end of the piston rod can seal the second return channel.

4. A granular electronic fill valve with backflow control according to claim 3, characterized in that: The valve seat is also provided with a reflux chamber, and the second reflux channel is connected to the reflux chamber.

5. A granular electronic fill valve with backflow control according to claim 4, characterized in that: The lower end of the first piston passes through the connecting seat, extends into the second cavity, and contacts the top of the second piston; the lower end of the second piston extends out of the lower cylinder.

6. A granular electronic fill valve with backflow control according to claim 5, characterized in that: The upper valve body is provided with a valve cover, which is provided with a spring groove and a valve needle. The lower end of the valve needle is located under the valve cover, and the upper end extends out of the valve cover. From top to bottom, a spring retaining ring and a valve needle spring are provided. One end of the valve needle spring contacts the spring retaining ring, and the other end is installed in the spring groove. A bushing and a shaft Glyd ring are provided between the valve needle and the valve cover. The lower structure of the valve needle is adapted to the material channel inside the upper valve body.

7. A granular electronic valve with backflow control according to claim 6, characterized in that: The lower cylinder is provided with an outer sleeve, and the lower end of the outer sleeve is installed on the valve cover.

Images