CN219102076U - A Precisely Metered Feed Valve - Google Patents

Abstract

The utility model discloses an accurately-metered feeding valve, which comprises a cylindrical feeding cavity, wherein a rotating cavity is arranged in the feeding cavity, the outer side wall of the rotating cavity is attached to the inner side wall of the feeding cavity, and a servo motor drives the rotating cavity to rotate around the axial lead of the feeding cavity; an opening is formed in the side wall of the rotating cavity, a feeding area is formed in the side wall of the feeding cavity, a plurality of feeding holes are formed in the feeding area, the feeding holes gradually decrease along the rotating direction of the rotating cavity, and the area of the opening is smaller than that of the feeding area; one side of the feeding cavity is provided with a discharging cavity, the feeding cavity is communicated with the discharging cavity through a feeding hole, and the bottom of the discharging cavity is provided with a discharging pipeline. When the rotating cavity rotates, the openings sequentially rotate from the larger feed inlet to the smaller feed inlet, so that the liquid flow flowing through the feed inlet is gradually reduced, the circulation efficiency is improved, the feeding is more accurate, and the metering precision of the feeding valve is improved.

Description

A Precisely Metered Feed Valve

technical field

The utility model relates to the technical field of valves, in particular to a feed valve for precise metering.

Background technique

The valve is a control component in the fluid conveying system, which is used to change the cross section of the channel and the flow direction of the medium, relying on the driving or automatic mechanism to make the opening and closing parts perform lifting, sliding, swinging or rotating movements, thereby changing the size of the flow channel area and realize its control function. However, common valves cannot stop raw materials in time when they are closed. When the opening is large, part of the raw materials will flow out at the moment of closing. Small openings are not conducive to normal material circulation, resulting in errors in feeding or low feeding efficiency.

Utility model content

In view of the technical problems mentioned above, the purpose of this utility model is: to propose a feed valve with accurate metering, which can reduce the feed error and make the feed more accurate.

In order to achieve the above object, the utility model provides the following technical solutions:

A feed valve for precise metering, including a cylindrical feeding chamber, a rotating chamber is arranged in the feeding chamber, the outer wall of the rotating chamber fits the inner wall of the feeding chamber, driven by a servo motor The rotating chamber rotates around the axis of the feeding chamber; the side wall of the rotating chamber is provided with an opening, the side wall of the feeding chamber is provided with a feeding area, and the feeding area is provided with There are several feed ports, and the feed ports gradually decrease along the direction of rotation of the rotating cavity, and the area of the opening is smaller than the area of the feed area; one side of the feed cavity is provided with a discharge cavity, and the The feeding chamber communicates with the discharging chamber through the feeding port, and a discharging pipe is arranged at the bottom of the discharging chamber.

Preferably, a base is provided under the feeding chamber, a first pulley installed in the base is provided at the bottom of the rotating chamber, a second pulley is provided at the output end of the servo motor, and the first pulley is provided at the bottom of the rotating chamber. A timing belt is arranged between the first pulley and the second pulley.

Preferably, the top of the rotating chamber is provided with a mounting flange.

Preferably, the opening of the rotating chamber is provided with a detachable filter screen.

Preferably, the feed inlet is circular or square.

Preferably, the area of the feeding zone is less than half of the circumference area of the feeding chamber.

Due to the application of the above-mentioned technical solution, the utility model has the following advantages compared with the prior art:

The feeding valve for accurate metering of the utility model includes a cylindrical feeding chamber, a rotating chamber is arranged in the feeding chamber, the outer wall of the rotating chamber fits the inner wall of the feeding chamber, and a servo motor drives the rotating chamber to go around The axis of the material chamber rotates; the side wall of the rotating chamber is provided with an opening, the side wall of the feeding chamber is provided with a feeding area, and a number of feeding ports are arranged on the feeding area, and several feeding ports are arranged along the direction of the rotating chamber. The direction of rotation gradually decreases. When the rotating cavity rotates, the opening turns from the larger feed port to the smaller feed port in turn, so that the liquid flow through the feed port gradually decreases. When the feed valve is just opened , in order to improve the efficiency of liquid circulation, the opening can be aligned with the feed port on the left side of the feed chamber, so that the liquid can pass through quickly and in large quantities. When enough liquid has passed, the opening can be rotated to align with the feed port on the right side of the feed chamber , so that the liquid flows out in a small amount, until the precise amount is obtained, the valve is closed, the flow efficiency is improved, the feed is more accurate, and the metering accuracy of the feed valve is improved.

Description of drawings

Below in conjunction with accompanying drawing, technical scheme of the utility model is further described:

Accompanying drawing 1 is the perspective view of the feeding valve of the utility model accurate metering;

Accompanying drawing 2 is the three-dimensional view of the concealed discharge cavity of the feed valve of the utility model accurate metering;

Accompanying drawing 3 is the three-dimensional view of the concealed base of the feed valve of the utility model accurate metering;

Accompanying drawing 4 is the three-dimensional view of the concealed feeding chamber of the feed valve of the utility model accurate metering.

Among them: 1. Feed chamber; 11. Feed port; 2. Rotating chamber; 21. Opening; 3. Servo motor; 4. Discharge chamber; 5. Discharge pipe; 6. Base; 7. First pulley ; 8, the second pulley; 9, the mounting flange; 10, the filter screen.

Detailed ways

The preferred embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings, so that the advantages and characteristics of the utility model can be more easily understood by those skilled in the art, so that the protection scope of the utility model can be defined more clearly .

It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, it should also be noted that the orientation terms such as left, right, up, and down in the embodiments of the present utility model are only relative concepts or refer to the normal use status of the product, and should not be regarded as having restrictive. The realization of the utility model is described in detail below in conjunction with specific embodiments.

As shown in accompanying drawing 1 and accompanying drawing 2, it is a kind of feed valve of accurate metering of the present utility model, comprises cylindrical feeding chamber 1, and rotating chamber 2 is installed in feeding chamber 1, and the outer wall of rotating chamber 2 and The inner side walls of the feeding chamber 1 are attached to each other, and a servo motor 3 drives the rotating chamber 2 to rotate around the axis of the feeding chamber 1 . The side wall of the rotating chamber 2 is processed with an opening 21, and the side wall of the feeding chamber 1 has a feeding area. The feeding area is processed with some feeding ports 11, and the several feeding ports 11 are gradually decrease. The area of the opening 21 is smaller than the area of the feed area. When the rotating chamber 2 rotates, the opening 21 rotates from the larger feed port 11 to the smaller feed port 11, so that the liquid flow through the feed port 11 gradually get smaller. The top of the rotating chamber 2 has a mounting flange 9, which can be connected with a rotary joint, so as to facilitate the relative movement between the rotating chamber 2 and the pipeline. In this embodiment, the feeding port 11 is square, and in other embodiments, the feeding port 11 may also be circular.

There is a discharge chamber 4 on one side of the feed chamber 1, the feed chamber 1 communicates with the discharge chamber 4 through the feed port 11, the bottom of the discharge chamber 4 is connected with a discharge pipe 5, and the liquid enters and exits from the feed chamber 1. Material cavity 4 flows out from discharge pipe 5 afterward. When the feed valve is just opened, in order to improve the efficiency of liquid circulation, the opening 21 can be aligned with the feed port 11 on the left side of the feed chamber 1 as shown in Figure 2, so that the liquid can pass through quickly and in large quantities. Finally, the opening 21 is rotated to align with the feeding port 11 on the right side of the feeding chamber 1, so that the liquid flows out in a small amount until the accurate amount is obtained and the valve is closed. The area of the feeding area is less than half of the circumference area of the feeding chamber 1, and the volume of the outlet chamber 4 is reduced so that the liquid flowing out from the opening 21 can be quickly gathered together to avoid dispersion.

The inner side of the opening 21 of the rotating chamber 2 is connected with a detachable filter screen 10 to improve the quality of feed. The feeding port 11 gradually becomes smaller from left to right, but the number of feeding ports 11 does not decrease, they are scattered at intervals, and are not concentrated in one place, so that when the liquid passes through the filter screen 10 and passes through the feeding port 11, the filter residue can be prevented from concentrating on the A certain place on the filter screen 10 prolongs the service life of the filter screen 10, and the filter screen 10 can be replaced in regular maintenance.

The bottom of the feed chamber 1 is provided with a base 6, as shown in Figure 3, the bottom of the rotating chamber 2 has a first pulley 7 installed in the base 6, the output end of the servo motor 3 is connected with a second pulley 8, A synchronous belt is connected between the first pulley 7 and the second pulley 8 to reduce the speed of the servo motor 3 while making the structure of the base 6 more compact and reducing the occupied space. A sealing ring is installed between the feeding chamber 1 and the rotating chamber 2 .

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure or equivalent process conversion made by using the content of the utility model description, or directly or indirectly used in other related technologies Fields are all included in the scope of patent protection of the utility model in the same way.

Claims (6)

1. A feed valve for precise metering, characterized in that: it comprises a cylindrical feeding chamber, a rotating chamber is arranged in the feeding chamber, and the outer wall of the rotating chamber is attached to the inner wall of the feeding chamber Together, a servo motor drives the rotating chamber to rotate around the axis of the feeding chamber; the side wall of the rotating chamber is provided with an opening, and the side wall of the feeding chamber is provided with a feeding area, so The feeding area is provided with a number of feeding ports, which gradually decrease along the rotating direction of the rotating chamber, and the area of the opening is smaller than the area of the feeding area; one side of the feeding chamber is provided with A discharge chamber, the feed chamber communicates with the discharge chamber through a feed port, and a discharge pipe is arranged at the bottom of the discharge chamber. 2. The feed valve for precise metering according to claim 1, characterized in that: a base is provided below the feed chamber, and a first pulley installed in the base is provided at the bottom of the rotating chamber, so The output end of the servo motor is provided with a second pulley, and a synchronous belt is arranged between the first pulley and the second pulley. 3. The feed valve for precise metering according to claim 1, characterized in that: the top of the rotating chamber is provided with a mounting flange. 4. The feed valve for precise metering according to claim 1, characterized in that: a detachable filter screen is arranged on the opening of the rotating chamber. 5. The feed valve for precise metering according to claim 1, characterized in that: the feed opening is circular or square. 6. The feed valve for precise metering according to claim 1, characterized in that: the area of the feed zone is less than half of the circumference area of the feed cavity.

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