Cylinder type self-locking capacity-locking blanking device

Abstract

The utility model discloses a barrel type self-locking capacity-fixing blanking device which comprises a barrel body, the barrel body is divided into a material storage barrel and a capacity fixing barrel which are communicated with each other, and an upper sealing plate with a material flowing hole is arranged in the material storage barrel; the connecting rod penetrates through the cylinder body; the upper sealing body is installed on the connecting rod and used for sealing the material flowing hole of the upper sealing plate, and the material storage barrel is divided into a raw material area and a cache area. The middle sealing body is mounted on the connecting rod and is used for sealing a feeding hole of the constant volume cylinder; the lower sealing body is mounted on the connecting rod and is used for sealing the discharge hole of the constant volume cylinder; the air cylinder is installed at the end of the barrel, and the power output end of the air cylinder is connected with the outer end of the connecting rod. The self-locking assembly is installed on the cylinder body, the working end of the self-locking assembly abuts against the connecting rod, the lower sealing body abuts against the discharging port of the constant-volume cylinder, and the constant-volume discharging device is accurate in discharging and reliable in work.

Description

Technical Field

[0001] This utility model relates to the technical field of constant volume feeders, and in particular to a cylindrical self-locking constant volume feeder. Background Technology

[0002] The constant-volume feeder at the top of the aluminum electrolytic cell is one of the important pieces of equipment for material balance, which is essential for stable production. During the production process of the aluminum electrolytic cell, alumina powder needs to be continuously replenished. This feeding is carried out at regular intervals and in fixed quantities, usually once every 1 to 2 minutes.

[0003] In the prior art, such as the Chinese utility model patent with publication number CN211079365U entitled "A Constant Volume Feeder for Continuous Alumina Feeding", three valve bodies are set in the cylinder of the constant volume feeder - an upper cone valve, a lower cone valve and a slow-release cone valve. The three cone valves are located at the same top and bottom. The opening and closing directions of the upper cone valve and the lower cone valve are opposite, while the opening and closing directions of the lower cone valve and the slow-release cone valve are the same. Under the action of the slow-release cone valve, the material is released slowly.

[0004] Existing constant volume feeders do not have the effect of buffering materials. The barrel and the constant volume chamber are generally directly connected, and the material enters the constant volume chamber directly through the upper conical valve. The principle of filling the constant volume chamber is adopted. When the material fills the constant volume chamber, the material in the barrel only stops entering the constant volume chamber, but is not immediately blocked. During the process of the upper conical valve blocking the feed port of the constant volume chamber, due to the delay of valve closing, the compressibility of the material, and the downward squeezing of the material by the upper conical valve, the amount of material in the constant volume chamber may exceed the original volume of the constant volume chamber, causing feeding imbalance and affecting production. Utility Model Content

[0005] The purpose of this utility model is to provide a cylindrical self-locking volume feeder to solve the problem that existing volume feeders do not have the effect of buffering materials. Due to the delay in closing the valve, the compressibility of the material, and the downward squeezing of the material by the upper cone valve, the amount of material in the volume chamber may exceed the original volume of the volume chamber, causing the feeding imbalance and affecting production.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A cylindrical self-locking feeder includes:

[0008] The cylinder is divided into a storage cylinder and a constant volume cylinder that are connected to each other. The storage cylinder is provided with an upper sealing plate with a flow hole.

[0009] A connecting rod, which penetrates the cylinder;

[0010] The upper sealing body is mounted on the connecting rod and is used to seal the material flow hole of the upper sealing plate, dividing the storage cylinder into a raw material area and a buffer area;

[0011] A central sealing body is mounted on the connecting rod and is used to seal the feed inlet of the constant volume cylinder;

[0012] The lower sealing body is mounted on the connecting rod and is used to seal the outlet of the constant volume cylinder;

[0013] A cylinder is installed at the end of the cylinder body, and the power output end of the cylinder is connected to the outer end of the connecting rod.

[0014] The self-locking assembly is installed on the cylinder, and the working end of the self-locking assembly abuts against the connecting rod, thus pressing the lower sealing body against the discharge port of the constant volume cylinder.

[0015] A further technical solution is: the self-locking assembly includes a housing and a spring, the housing is installed between the cylinder and the cylinder, and the spring is installed inside the housing and presses the connecting rod against the lower sealing body.

[0016] A further technical solution is that the upper surface of the upper sealing plate is recessed.

[0017] A further technical solution is that the volume of the raw material area is greater than the volume of the constant volume cylinder, and the volume of the constant volume cylinder is greater than the volume of the buffer area.

[0018] A further technical solution is that the sealing direction of the upper seal body is the same as that of the lower seal body, and the sealing direction of the upper seal body is opposite to that of the middle seal body.

[0019] A further technical solution is that the upper sealing body, the middle sealing body, and the lower sealing body are all cones.

[0020] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0021] This utility model proposes a cylindrical self-locking volumetric feeder. This volumetric feeder has accurate feeding and reliable operation. Inside the storage cylinder, a raw material area and a buffer area are formed from top to bottom through an upper sealing plate and an upper sealing body. The material in the raw material area first goes into the buffer area for quantitative buffering and temporary storage. Then, the working state of the volumetric feeder is adjusted, and the material in the buffer area goes into the volumetric cylinder. This is equivalent to measuring the material twice. It evenly distributes the error caused by the delay of valve closure, the compressibility of the material, and the downward extrusion of the material by the upper cone valve, which causes the amount of material in the volumetric cavity to exceed the original volume of the volumetric cavity, and even eliminates it to the point of being negligible. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a cylindrical self-locking unloading device according to the present invention.

[0023] Figure 2 This is a structural schematic diagram of another state of the present invention as shown in Figure 1.

[0024] Figure 3 This is an enlarged structural schematic diagram of the present invention as shown in Figure 1.

[0025] Reference numerals: 1. Cylinder; 11. Storage cylinder; 111. Raw material area; 112. Buffer area; 12. Volumetric cylinder; 2. Connecting rod; 3. Upper sealing body; 4. Middle sealing body; 5. Lower sealing body; 6. Cylinder; 7. Self-locking assembly; 8. Upper sealing plate; 9. Shell; 10. Spring. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 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.

[0032] Example 1:

[0033] This implementation example Figure 1 and Figure 2 As shown, a cylindrical self-locking unloading device includes:

[0034] The cylinder 1 is divided into a storage cylinder 11 and a constant volume cylinder 12 that are connected to each other. The storage cylinder 11 is provided with an upper sealing plate 8 with a material flow hole.

[0035] Connecting rod 2, connecting rod 2 penetrates cylinder 1;

[0036] The upper sealing body 3 is installed on the connecting rod 2 and is used to seal the material flow hole of the upper sealing plate 8, dividing the storage cylinder 11 into a raw material area 111 and a buffer area 112.

[0037] The middle seal 4 is installed on the connecting rod 2 and is used to seal the feed port of the constant volume cylinder 12.

[0038] The lower sealing body 5 is installed on the connecting rod 2 and is used to seal the outlet of the constant volume cylinder 12.

[0039] Cylinder 6 is installed at the end of cylinder 1, and the power output end of cylinder 6 is connected to the outer end of connecting rod 2.

[0040] The self-locking component 7 is installed on the cylinder 1, and the working end of the self-locking component 7 abuts against the connecting rod 2, and presses the lower sealing body 5 against the discharge port of the constant volume cylinder 12.

[0041] This constant volume feeder has two working states. The first state is as follows: Figure 1 As shown, in the state of material intake from the constant volume chamber 12 and material discharge from the buffer zone 112, the cylinder 6 is in the retracted state, lifting the connecting rod 2 upwards. The upper sealing body 3 and the lower sealing body 5 respectively block the material flow hole of the upper sealing plate 8 and the discharge port of the constant volume chamber 12. At this time, the middle sealing body 4 opens the feed port of the constant volume chamber 12, and the material in the buffer zone 112 flows into the constant volume chamber 12 through the feed port; the second state is as follows. Figure 2 As shown, the material is being discharged from the constant volume chamber 12 and picked up from the buffer zone 112. The cylinder 6 is in the extended state, pushing down the connecting rod 2. The upper sealing body 3 and the lower sealing body 5 are respectively moved away from the material flow hole of the upper sealing plate 8 and the discharge port of the constant volume chamber 12. The middle sealing body 4 seals the inlet of the constant volume chamber 12. At this time, the material in the raw material zone 111 flows into the buffer zone 112 through the material flow hole. The first and second states of this constant volume feeder alternate and work repeatedly.

[0042] It is worth noting that when cylinder 6 fails, self-locking component 7 can abut against connecting rod 2 and press lower sealing body 5 against the discharge port of volumetric cylinder 12, preventing the volumetric feeder from discharging material without restriction.

[0043] Preferably, the self-locking assembly 7 includes a housing 9 and a spring 10. The housing 9 is installed between the cylinder 1 and the cylinder 6, and the spring 10 is installed inside the housing 9 and presses the connecting rod 2 against the downward sealing body 5.

[0044] When cylinder 6 fails, spring 10 of self-locking component 7 can abut against flange of connecting rod 2 and press lower sealing body 5 against discharge port of volumetric cylinder 12 to prevent the volumetric feeder from feeding without restriction.

[0045] Preferably, the upper surface of the upper sealing plate 8 is recessed.

[0046] The upper surface of the upper sealing plate 8 is concave to facilitate the flow of materials in the raw material area 111 into the buffer area 112.

[0047] Preferably, the volume of the raw material zone 111 is greater than the volume of the constant volume cylinder 12, and the volume of the constant volume cylinder 12 is greater than the volume of the buffer zone 112.

[0048] Through the intermediate transfer of buffer zone 112 and the intermediate sealing effect of middle seal body 4, the error of the amount of material in the constant volume cavity exceeding the original volume caused by the delay of valve closing, the compressibility of material, and the downward squeezing of material by upper cone valve has been greatly eliminated. Moreover, since the volume of buffer zone 112 is smaller than that of constant volume cylinder 12, it can further ensure that the phenomenon of the amount of material in the constant volume cavity exceeding the original volume of constant volume cavity will not occur.

[0049] Preferably, the sealing directions of the upper seal 3 and the lower seal 5 are the same, and the sealing directions of the upper seal 3 and the middle seal 4 are opposite.

[0050] Preferably, the upper sealing body 3, the middle sealing body 4, and the lower sealing body 5 are all cones.

[0051] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cylindrical self-locking unloading device, characterized in that, include: The cylinder (1) is divided into a storage cylinder (11) and a constant volume cylinder (12) that are connected to each other. The storage cylinder (11) is provided with an upper sealing plate (8) with a flow hole. Connecting rod (2), the connecting rod (2) passes through the cylinder (1); The upper sealing body (3) is installed on the connecting rod (2) and is used to seal the material flow hole of the upper sealing plate (8), dividing the storage cylinder (11) into a raw material area (111) and a buffer area (112). A central sealing body (4) is installed on the connecting rod (2) and is used to seal the feed port of the volumetric cylinder (12); The lower sealing body (5) is installed on the connecting rod (2) and is used to seal the outlet of the volumetric cylinder (12); Cylinder (6), the cylinder (6) is installed at the end of the cylinder (1), and the power output end of the cylinder (6) is connected to the outer end of the connecting rod (2); The self-locking component (7) is installed on the cylinder (1), and the working end of the self-locking component (7) abuts against the connecting rod (2) and presses the lower sealing body (5) against the discharge port of the constant volume cylinder (12).

2. The cylindrical self-locking capacitive feeder according to claim 1, characterized in that: The self-locking assembly (7) includes a housing (9) and a spring (10). The housing (9) is installed between the cylinder (1) and the cylinder (6). The spring (10) is installed inside the housing (9) and presses the connecting rod (2) against the lower seal (5).

3. The cylindrical self-locking capacitive feeder according to claim 1, characterized in that: The upper surface of the upper sealing plate (8) is recessed.

4. The cylindrical self-locking capacitive feeder according to claim 1, characterized in that: The volume of the raw material area (111) is greater than the volume of the constant volume cylinder (12), and the volume of the constant volume cylinder (12) is greater than the volume of the buffer area (112).

5. The cylindrical self-locking capacitive feeder according to claim 1, characterized in that: The sealing direction of the upper seal (3) is consistent with that of the lower seal (5), and the sealing direction of the upper seal (3) is opposite to that of the middle seal (4).

6. The cylindrical self-locking capacitive feeder according to claim 1, characterized in that: The upper sealing body (3), the middle sealing body (4) and the lower sealing body (5) are all cones.

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