Powder gate valve with anti-wear design

Abstract

The utility model discloses an anti-wear gate valve for powder, which comprises a valve cover, a valve plate and a driving piece, the valve cover comprises an upper valve cover and a lower valve cover which are detachably and fixedly arranged from top to bottom, an accommodating space is formed between the upper valve cover and the lower valve cover, the valve plate is arranged in the accommodating space in a sliding manner, and the driving piece is arranged on the valve plate. An upper circulation hole is formed in the upper valve cover, a lower circulation hole coaxial with the upper circulation hole is formed in the lower valve cover, a material through hole is formed in the valve plate, the driving part drives the valve plate to make the material through hole and the upper circulation hole to be completely separated and matched, an air channel communicated to the material through hole is formed in the valve plate, and the material through hole is communicated with the air channel. The valve cover is provided with an air pipe communicated with the air channel, and air can be blown into the air channel through the air pipe. The valve plate has the advantage that the possibility that the valve plate is abraded by powder materials in gaps in the moving process can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery powder processing, in particular to a powder plug valve with anti-wear design. Background Art

[0002] The pneumatic gate valve is mainly composed of a frame, a gate, a cylinder and other parts. It uses compressed air as the power, changes the direction of the air path through the solenoid valve, pushes the cylinder piston, and drives the gate to reciprocate in the horizontal direction to achieve the purpose of opening / closing the gate. The gate valve is used when feeding the positive and negative electrode materials of lithium batteries. In the existing gate valve, during the opening / closing process of the valve plate, powder particles often enter the gap between the valve plate and the frame, causing hard friction between the valve plate and the particles during the movement of the valve plate, which not only causes wear of the valve plate, but also produces metal particle impurities due to friction with the valve plate, affecting product quality.

[0003] In view of this, the purpose of the utility model is to provide a new technical solution to solve the existing technical problems. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a powder plug valve with an anti-wear design, which solves the problem that powder materials easily enter the gap between the valve plate and the frame, causing wear to the valve plate and even preventing normal operation.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A gate valve for powders with an anti-wear design comprises a valve cover, a valve plate and a driving member, the valve cover comprising an upper valve cover and a lower valve cover which are detachably fixed from top to bottom, a containing space being formed between the upper valve cover and the lower valve cover, the valve plate being slidably arranged in the containing space, the upper valve cover being provided with an upper flow hole, the lower valve cover being provided with a lower flow hole coaxially arranged with the upper flow hole, the valve plate being provided with a material through hole, the driving member driving the valve plate to make a movement in which the material through hole and the upper flow hole are completely separated and matched, an airway connected to the material through hole being provided inside the valve plate, the valve cover being provided with an air pipe connected to the airway, and gas can be sprayed into the airway through the air pipe.

[0007] In the above structure, the valve cover also includes a left end cover and a right end cover, which are respectively arranged at both ends of the valve plate and fixedly connected to the end sides of the upper valve cover and the lower valve cover for closing the accommodating space.

[0008] In the above structure, a plurality of air channels are opened inside the valve plate, and the plurality of air channels are interconnected and evenly distributed inside the valve plate, the air outlet of each air channel is connected to the material through hole, and the end of each air channel away from the material through hole is connected to the air pipe.

[0009] In the above structure, the air channels include a plurality of left air channels and a plurality of right air channels, and the extension directions of the left air channels and the right air channels are parallel to the movement direction of the valve plate. The left air channels are evenly opened on the side of the valve plate close to the left end cover, and the right air channels are opened on the side of the valve plate close to the right end cover. Two connecting air channels are also opened inside the valve plate and are located on both sides of the material through hole. The connecting air channel located on the side close to the left end cover is connected to each left air channel, and the connecting air channel located on the side close to the right end cover is connected to each right air channel. Both ends of the connecting air channel are closed.

[0010] In the above structure, plugs are fixedly provided at both ends of the two connecting airways, and the plugs are used to close the two ends of the connecting airways.

[0011] In the above structure, the left end cover is provided with a left air pipe, and one end of the left air pipe away from the left end cover is connected to one of the left air channels, and the other end of the left air channel away from the material through hole is fixedly provided with a plug, and gas can be transmitted to the left air channel through the left air pipe, and the right end cover is provided with a right air pipe, and one end of the right air pipe away from the right end cover is connected to one of the right air channels, and the other end of the right air channel away from the material through hole is fixedly provided with a plug, and gas can be transmitted to the right air channel through the right air pipe.

[0012] In the above structure, the upper valve cover and the lower valve cover, the left end cover and the upper valve cover and the lower valve cover, and the right end cover and the upper valve cover and the lower valve cover are all detachably fixed by bolts.

[0013] In the above structure, a sealing strip is provided at the connection between the upper valve cover and the lower valve cover.

[0014] In the above structure, the driving member is a cylinder, which is fixedly arranged on the right end cover, and the piston rod of the cylinder is located in the accommodating space and fixedly connected to the end side of the valve plate.

[0015] The beneficial effect of the utility model is that by evenly opening a plurality of air passages on the valve plate, powder particles in the travel path of the valve plate are purged, thereby effectively reducing the possibility of friction between the powder particles and the valve plate, which may cause the valve plate to wear or even fail to work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model.

[0020] Figure numerals: 1. upper valve cover; 11. upper flow hole; 2. lower valve cover; 21. lower flow hole; 3. valve plate; 31. material through hole; 32. left air duct; 33. right air duct; 34. plug; 35. connecting air duct; 4. left end cover; 41. left air pipe; 5. right end cover; 51. right air pipe; 6. cylinder; 7. sealing strip; 8. bolt. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-3 The utility model is further described.

[0022] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0023] Reference Figures 1 to 3, a wear-resistant design for powder plug valve, comprising a valve cover, a valve plate 3 and a driving member, wherein the valve cover comprises an upper valve cover 1 and a lower valve cover 2, the upper valve cover 1 and the lower valve cover 2 are arranged overlapping, that is, the projections of the upper valve cover 1 and the lower valve cover 2 in the vertical direction completely overlap, the upper valve cover 1 and the lower valve cover 2 are detachably fixed, and a receiving space is formed between the upper valve cover 1 and the lower valve cover 2, and the valve plate 3 is slidably arranged in the receiving space. An upper flow hole 11 is opened in the middle of the upper valve cover 1, and a lower flow hole 21 is opened in the middle of the lower valve cover 2. The upper flow hole 11 and the lower flow hole 21 have the same diameter and are coaxially arranged; a material through hole 31 is opened in the middle of the valve plate 3, and the shape and size of the material through hole 31 are consistent with the shape and size of the upper flow hole 11 and the lower flow hole 21, and the driving member is used to drive the valve plate 3 to make the material through hole 31 coincide with the upper flow hole 11 (lower flow hole 21) and separate from the upper flow hole 11 (lower flow hole 21). When the material through hole 31 is completely consistent with the upper circulation hole 11 (lower circulation hole 21), that is, the material through hole 31 is coaxial with the upper circulation hole 11 (lower circulation hole 21), the upper circulation hole 11, the material through hole 31 and the lower circulation hole 21 are completely connected, that is, the gate valve is fully open, and the powder material can pass through the gate valve from the upper circulation hole 11, the material through hole 31 to the lower circulation hole 21 in sequence; when the material through hole 31 is completely separated from the upper circulation hole 11 (lower circulation hole 21), that is, the material through hole 31 is completely separated from the upper circulation hole 11 (lower circulation hole 21) and is no longer connected thereto, the gate valve is closed. In this embodiment, the upper valve cover 1 is fixed to the lower valve cover 2 by bolts 8.

[0024] Reference Figure 1 and Figure 2 The valve cover also includes a left end cover 4 and a right end cover 5. The left end cover 4 and the right end cover 5 are respectively arranged at the two ends of the moving direction of the valve plate 3, and the left end cover 4 is fixedly connected to one end of the upper valve cover 1 and the lower valve cover 2, and the right end cover 5 is fixedly connected to one end of the upper valve cover 1 and the lower valve cover 2 away from the left end cover 4. The left end cover 4 and the end cover are used to close the accommodating space. In this embodiment, the upper valve cover 1 and the lower valve cover 2, the left end cover 4 and the upper valve cover 1 and the lower valve cover 2, and the right end cover 5 and the upper valve cover 1 and the lower valve cover 2 are all detachably fixed by bolts 8. The bolts 8 are fixedly connected, which is convenient for disassembly. When necessary, the upper valve cover 1, the lower valve cover 2, the left end cover 4 or the right end cover 5 can be disassembled to clean the inside of the gate valve. The structure is simple and the operation is convenient.

[0025] Reference Figure 2 and Figure 3, a plurality of air passages are provided inside the valve plate 3, the plurality of air passages are interconnected and evenly distributed inside the valve plate 3, and the gas outlets of the plurality of air passages are all connected to the material through hole 31. Specifically, the plurality of air passages include a plurality of left air passages 32 and a plurality of right air passages 33. In this embodiment, the extension direction of the left air passage 32 and the right air passage 33 is parallel to the moving direction of the valve plate 3, and the air passages are arranged parallel to each other. The plurality of left air passages 32 are evenly distributed on the side of the valve plate 3 close to the left end cover 4, and the plurality of right air passages 33 are evenly distributed on the side of the valve plate 3 close to the right end cover 5, that is, the material through hole 31 is located between the left air passage 32 and the right air passage 33. In this embodiment, two connecting air passages 35 are further provided inside the valve plate 3. The two connecting air passages 35 are respectively located on both sides of the material through hole 31. The connecting air passage 35 located on the side of the valve plate 3 close to the left end cover 4 is connected to each left air pipe 41; the connecting air passage 35 located on the side of the valve plate 3 close to the right end cover 5 is connected to each right air pipe 51. In this embodiment, the connecting air passage 35 is perpendicular to each left air passage 32 (right air passage 33). The vertical arrangement of the connecting air passage 35 is convenient for drilling, which is conducive to reducing the processing difficulty of the connecting air passage 35. Both ends of the connecting air passage 35 are closed. Specifically, both ends of the two connecting air passages 35 are fixedly provided with plugs 34, which are used to close both ends of the connecting air passage 35.

[0026] Reference Figure 2 and Figure 3 , the valve cover is provided with an air pipe connected to the airway, specifically, the left end cover 4 is provided with a left air pipe 41, one end of the left air pipe 41 away from the left end cover 4 is connected to one of the left airways 32, and the other end of the left airway 32 away from the material through hole 31 is fixedly provided with a plug 34 for closing the air pipe opening, and gas can be sprayed into the left airway 32 through the left air pipe 41; the right end cover 5 is provided with a right air pipe 51, one end of the right air pipe 51 away from the right end cover 5 is connected to one of the right airways 33, and the other end of the right airway 33 away from the material through hole 31 is fixedly provided with a plug 34 for closing the airway opening, and gas can be sprayed into the right airway 33 through the right air pipe 51. It should be noted that the lengths of the left air pipe 41 and the right air pipe 51 are sufficient to support the valve plate 3 to move in the accommodation space without falling off. The plug 34 is used to close the end of the airway away from the material through hole 31 to ensure that when the gas is sprayed into the airway, the gas can only escape from the end of the airway connected to the material through hole 31. In actual production, the plug 34 and the valve plate 3 can be integrally formed to simplify the production process.

[0027] During actual use, one end of the left air pipe 41 and the right air pipe 51 are respectively fixedly connected to the valve plate 3, and the other ends are respectively connected to the external air source components. The air source component sprays gas into the left air channel 32 through the left air pipe 41, and the air source component sprays gas into the right air channel 33 through the right air pipe 51. The gas is connected to one end of the material through hole 31 through the air channel and sprayed out, and the powder material remaining in the material through hole 31, the upper flow hole 11 or the lower flow hole 21 is sprayed and cleared. The powder material blown off falls to the lower flow hole 21, and does not enter the accommodating space with the movement of the valve plate 3, which is beneficial to reduce the possibility of the gate valve being worn by the powder material during the movement, so as to ensure the normal operation of the gate valve.

[0028] Reference Figure 1 and Figure 2 , a sealing strip 7 is provided at the connection between the upper valve cover 1 and the lower valve cover 2. The sealing strip 7 can be installed between the upper valve cover 1 and the lower valve cover 2. When the upper valve cover 1 and the lower valve cover 2 are fixed by bolts 8, the sealing strip 7 is also fixed between the upper valve cover 1 and the lower valve cover 2. The provision of the sealing strip 7 is conducive to ensuring the sealing of the connection between the upper valve cover 1 and the lower valve cover 2. In this embodiment, the driving member is a cylinder 6, which is fixedly connected to the right end cover 5. The piston rod of the cylinder 6 is located in the accommodating space, and the piston rod of the cylinder 6 is fixedly connected to the side of the valve plate 3 away from the right end cover 5. When the piston rod of the cylinder 6 is extended, the valve plate 3 is driven to make a movement that makes the material through hole 31 coincide with the upper flow hole 11 (lower flow hole 21); when the piston rod of the cylinder 6 is retracted, the valve plate 3 is driven to make a movement that makes the material through hole 31 separate from the upper flow hole 11 (lower flow hole 21).

[0029] The specific implementation process of the utility model is:

[0030] When the cylinder 6 drives the valve plate 3 to move toward the left end cover 4 (i.e., the valve plate 3 moves so that the material through hole 31 coincides with the upper flow hole 11), the external air source component blows gas from the right air pipe 51 to the right air channel 33 to clean the plug-in valve; when the valve plate 3 moves toward the right end cover 5 (i.e., the valve plate 3 moves so that the material through hole 31 separates from the upper flow hole 11), the external air source component blows gas from the left air pipe 41 to the left air channel 32 to clean the plug-in valve, and the powder materials that fall down after cleaning fall down through the lower flow hole 21. By purging the powder materials on the travel path of the valve plate 3, the possibility of the valve plate 3 being worn by the powder materials is effectively reduced.

[0031] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A powder gate valve with anti-wear design, characterized by: It comprises a valve cover, a valve plate and a driving member, the valve cover comprises an upper valve cover and a lower valve cover which are detachably fixed from top to bottom, a containing space is formed between the upper valve cover and the lower valve cover, the valve plate is slidably arranged in the containing space, the upper valve cover is provided with an upper flow hole, the lower valve cover is provided with a lower flow hole which is coaxially arranged with the upper flow hole, the valve plate is provided with a material through hole, the driving member drives the valve plate to make a movement in which the material through hole and the upper flow hole are completely separated and matched, an air passage connected to the material through hole is provided inside the valve plate, the valve cover is provided with an air pipe connected to the air passage, and gas can be sprayed into the air passage through the air pipe; The plurality of air channels include a plurality of left air channels and a plurality of right air channels, and the extension directions of the left air channels and the right air channels are parallel to the movement direction of the valve plate. The plurality of left air channels are evenly opened on the side of the valve plate close to the left end cover, and the plurality of right air channels are opened on the side of the valve plate close to the right end cover. Two connecting air channels are also opened inside the valve plate and are located on both sides of the material through hole. The connecting air channel located on the side close to the left end cover is connected to each left air channel, and the connecting air channel located on the side close to the right end cover is connected to each right air channel, and both ends of the connecting air channel are closed.

2. The anti-wear design of the powder gate valve according to claim 1, characterized in that: The valve cover also includes a left end cover and a right end cover, which are respectively arranged at both ends of the valve plate and fixedly connected to the end sides of the upper valve cover and the lower valve cover for closing the accommodating space.

3. The anti-wear design of the powder gate valve according to claim 2 is characterized by: A plurality of air passages are provided inside the valve plate, and the plurality of air passages are interconnected and evenly distributed inside the valve plate, the air outlet of each air passage is connected to the material through hole, and one end of each air passage away from the material through hole is connected to the air pipe.

4. The anti-wear design of the powder gate valve according to claim 3 is characterized by: Both ends of the two connecting airways are fixedly provided with plugs, and the plugs are used to close the two ends of the connecting airways.

5. The anti-wear design powder gate valve according to claim 4, characterized in that: The left end cover is provided with a left air pipe, and one end of the left air pipe away from the left end cover is connected to one of the left air channels, and the other end of the left air channel away from the material through hole is fixedly provided with a plug, and gas can be transmitted into the left air channel through the left air pipe. The right end cover is provided with a right air pipe, and one end of the right air pipe away from the right end cover is connected to one of the right air channels, and the other end of the right air channel away from the material through hole is fixedly provided with a plug, and gas can be transmitted into the right air channel through the right air pipe.

6. The anti-wear design of the powder gate valve according to claim 2, characterized in that: The upper valve cover and the lower valve cover, the left end cover and the upper valve cover and the lower valve cover, and the right end cover and the upper valve cover and the lower valve cover are all detachably fixed by bolts.

7. The anti-wear design of the powder gate valve according to claim 6, characterized in that: A sealing strip is provided at the connection between the upper valve cover and the lower valve cover.

8. The anti-wear design powder gate valve according to claim 1, characterized in that: The driving member is a cylinder, which is fixedly arranged on the right end cover. The piston rod of the cylinder is located in the accommodating space and is fixedly connected to the end side of the valve plate.

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