CN217491504U - Coating valve control structure and coating valve - Google Patents

Abstract

The utility model relates to a thick liquids coating technology field discloses a coating valve control structure, sets up and is connected with the shutoff piece in this internal and of valve for adjust shutoff piece shutoff feed inlet or backward flow mouth intermittently, including the revolving stage, connecting rod and driving piece, the revolving stage rotates and sets up in this internal of valve, revolving stage and the coaxial setting of shutoff piece, the revolving stage sets up to the inclined plane towards the terminal surface in the shutoff piece, the one end and the shutoff piece rotation of connecting rod are connected, the other end rotation of connecting rod is connected on the inclined plane, the connecting rod is the contained angle with the axial of revolving stage and lays, the driving piece is used for driving the revolving stage and rotates. The coating valve can accurately control the flow rate of the slurry and the intermittent coating speed.

Description

Coating valve control structure and coating valve

Technical Field

The utility model relates to a thick liquids coating technical field especially relates to a coating valve control structure and coating valve.

Background

The production process flow of the lithium ion battery is divided into three working sections, wherein the front section is to process raw materials into pole pieces, the core procedure is coating, the middle section is to process the pole pieces into unactivated cells, the rear end is to monitor and package, and the core procedure is formation and capacity grading.

In the coating procedure, the coating machine is used for uniformly and intermittently coating the prepared slurry on the surface of the metal foil and drying the metal foil to respectively prepare the positive pole piece material belt and the negative pole piece material belt. In order to ensure the intermittent supply of the slurry, a coating valve is usually arranged in a coating machine to achieve the accurate control of the feed quantity of a probe and the feed quantity of a valve body.

Therefore, a new coating valve control structure and a coating valve are needed to improve the above problems.

SUMMERY OF THE UTILITY MODEL

One of the objects of the present invention is to provide a coating valve control structure, which can precisely control the flow rate of slurry and the intermittent coating speed.

To achieve the purpose, the utility model adopts the following technical proposal:

a coating valve control structure disposed in a valve body and connected to a block for adjusting the block to intermittently block a feed port or a return port, comprising:

the rotary table is rotationally arranged in the valve body, the rotary table and the plugging piece are coaxially arranged, and the end face of the rotary table facing the plugging piece is arranged into an inclined plane;

one end of the connecting rod is rotatably connected with the plugging piece, the other end of the connecting rod is rotatably connected to the inclined plane, and the connecting rod and the rotating platform are arranged in an axial direction at an included angle; and

the driving piece is used for driving the rotating platform to rotate.

Preferably, the drive member comprises a servo motor.

Preferably, the coating valve control structure further includes a guide member guiding the block piece to move in an axial direction of the valve body.

Preferably, the guide part includes the guide block, the connecting rod with the shutoff piece with the both ends of guide block are connected, the week side of guide block seted up with valve body assorted recess, the guide block through recess sliding connection in the valve body.

Preferably, the rotary table includes:

the output end of the servo motor is detachably connected with the inclined table;

a rotating roller hinged to the ramp.

Preferably, the moving distance of the guide block is a, the difference between the highest point and the lowest point of the connecting rod on the inclined plane is b, and the following formula is satisfied: a-b.

Preferably, the two ends of the connecting rod are provided with spherical parts, and the connecting rod is ball-hinged to the guide block and the rotating roller through the spherical parts.

Another object of the utility model is to provide a coating valve can control thick liquids flow and intermittent type coating speed accurately.

Preferably, include as above-mentioned coating valve control structure, still include through the feeding valve body and the backward flow valve body of intercommunication pipeline intercommunication, the feeding valve body with the backward flow valve body respectively with the valve body is connected, the feeding valve body is provided with the feed inlet, the backward flow valve body is provided with the backward flow mouth, the feed inlet with the backward flow mouth is provided with the shutoff piece.

Preferably, the blocking member includes:

the coating valve core is arranged in the feeding valve body and is connected with a coating valve rod;

and the backflow plug is arranged in the backflow valve body, the backflow plug is connected with a backflow valve rod, and the coating valve rod and the backflow valve rod are respectively connected with the coating valve control structure.

Preferably, the feed inlet and the return outlet are provided with sealing rings.

The utility model has the advantages that: the utility model provides a pair of coating valve control structure, through starting the driving piece, by the turned angle of driving piece control revolving stage, under the cooperation on inclined plane, when the rotation junction of revolving stage and connecting rod is for being close to the closest point of shutoff piece, the connecting rod promotes shutoff piece and feed inlet or backward flow mouthful separation to this realizes opening of feed inlet or backward flow mouth. When the rotating connection position of the rotating table and the connecting rod is a farthest point far away from the plugging piece, the connecting rod pulls the plugging piece to plug the feed inlet or the backflow port, and therefore the feed inlet or the backflow port is closed. In conclusion, the reciprocating motion of the plugging piece along the axial direction of the feeding hole or the backflow hole can be adjusted by the rotation of the driving piece, compared with the pushing control of an air cylinder, the response speed of the structure is higher, the difference value between the farthest point and the nearest point is the moving distance of the plugging piece, and the flow rate of the plugging piece during closing or opening can be accurately controlled.

The utility model provides a pair of coating valve adjusts shutoff feed inlet and backward flow mouth of shutoff piece intermittent type through utilizing coating valve control structure, and quick corresponding when realizing the regulation to the flow size that the shutoff piece is closed or opened is controlled accurately.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic view of an overall structure of a coating valve control structure and a coating valve provided by the present invention;

fig. 2 is a schematic sectional view taken along line a-a of fig. 1.

In the figure:

10. a feed valve body; 101. a feed inlet; 11. a return valve body; 111. a return port; 1111. a seal ring;

20. a blocking member; 21. coating the valve core; 22. coating the valve rod; 23. a reflux plug; 24. a return valve stem;

30. a valve body; 31. a guide block; 311. a groove;

40. a sloping table; 401. a bevel; 42. rotating the roller; 43. a connecting rod; 431. a spherical portion;

50. a roller bearing; 51. mounting holes; 52. a connecting cylinder;

60. a servo motor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1 and fig. 2, the present embodiment provides a coating valve, the coating valve includes a feeding valve body 10 and a backflow valve body 11 that are vertically disposed, a feeding port 101 is opened at the top of the feeding valve body 10, a backflow port 111 is opened at the top of the backflow valve body 11, the feeding valve body 10 and the backflow valve body 11 are communicated with each other through a pipeline, and a blocking piece 20 that intermittently blocks the feeding port 101 or the backflow port 111 is respectively disposed in the feeding port 101 and the backflow port 111.

Specifically, the plugging member 20 includes a coating valve core 21 and a backflow plug 23, a coating valve rod 22 penetrates through the coating valve core 21, one end of the coating valve rod 22, which is far away from the coating valve core 21, extends into the feed port 101, and the diameter of the coating valve rod 22 is smaller than the caliber of the feed port 101. A backflow valve rod 24 penetrates through the backflow plug 23, one end, far away from the backflow plug 23, of the backflow valve rod 24 extends into the backflow port 111, and the diameter of the backflow valve rod 24 is smaller than the caliber of the backflow port 111. The intermittent supply of the feed amount and the return amount is realized by adjusting the coating valve rod 22 to reciprocate in the axial direction of the feed port 101 or the return port 111.

In order to improve the sealing performance when the coating valve core 21 and the backflow plug 23 close the feed port 101 and the backflow port 111, sealing rings 1111 are embedded in the feed port 101 and the backflow port 111, the sealing rings 1111 are made of rubber materials, and the inner edges of the sealing rings 1111 are movably matched with the contact surfaces of the coating valve core 21 and the backflow plug 23 after being stressed and extruded, so that the sealing performance during closing is ensured, and the condition that slurry overflows is reduced.

Among the prior art, the other end of keeping away from feed inlet 101 or backward flow mouth 111 at feeding valve body 10 and backward flow valve body 11 usually sets up valve body 30, installs the cylinder additional in valve body 30, is connected with coating valve rod 22 or backward flow valve rod 24's tip respectively through the flexible end with two cylinders, and after starting the cylinder, the telescopic link of cylinder drives coating valve rod 22 and backward flow valve rod 24 along linear direction reciprocating motion. However, the cylinder itself usually has the defects of low control precision and slow response speed, so that the slurry supply amount cannot be precisely controlled, and it is difficult to ensure that the density of the coating surface is kept stable.

To solve the above problem, as shown in fig. 1 and fig. 2, the present embodiment provides a coating valve control structure, which is disposed in the valve body 30 and connected to the coating valve rod 22 or the return valve rod 24, and is used for adjusting the coating valve core 21 or the return plug 23 to intermittently block the feed port 101 or the return port 111.

Further, as shown in fig. 2, the coating valve control structure includes a rotary table, a connecting rod 43 and a driving member, the rotary table is rotatably disposed in the valve body 30, the rotary table is coaxially disposed with the coating valve rod 22 or the backflow valve rod 24, an end surface of the rotary table facing the coating valve core 21 or the backflow plug 23 is disposed as an inclined surface 401, one end of the connecting rod 43 is connected with the coating valve rod 22 or the backflow valve rod 24, the other end of the connecting rod 43 is disposed at an included angle with an axial direction of the rotary table, and the driving member is disposed in the valve body 30 for driving the rotary table to rotate.

It can be understood that, the rotary table is driven to rotate by the driving member, so as to control the rotation angle of the rotary table, and under the cooperation of the inclined plane 401, when the rotational connection point between the rotary table and the connecting rod 43 is the closest point close to the coating valve core 21 or the return plug 23, the connecting rod 43 pushes the coating valve core 21 or the return plug 23 to separate from the feed port 101 or the return port 111, thereby opening the feed port 101 or the return port 111. When the rotation connection point of the rotation table and the connection rod 43 is the farthest point away from the coating valve core 21 or the return plug 23, the connection rod 43 pulls the coating valve core 21 or the return plug 23 to block the feed opening 101 or the return opening 111, so as to close the feed opening 101 or the return opening 111.

The moving distance of the coating valve rod 22 or the return valve rod 24 is a, and the difference between the highest point and the lowest point of the connecting rod 43 on the inclined plane 401 is b, which satisfies the following formula a-b. Therefore, the slurry flow can be accurately calculated through the above formula and the rotation speed of the driving member, and compared with the cylinder push control, the response speed of the connecting rod structure using the mutual matching of the inclined surface 401 and the connecting rod 43 is faster, and the flow of the coating valve core 21 or the opening or closing of the backflow stopper 23 can be accurately controlled.

As shown in fig. 2, the driving member of the present embodiment includes a servo motor 60, the servo motor 60 is disposed on the valve body 30, the servo motor 60 can implement closed-loop control of position, speed and torque, the rotation precision can be ensured, the dynamic response time of acceleration and deceleration is also shorter, usually within ten milliseconds to thirty milliseconds, and a more stable driving force can be provided compared with an air cylinder, so as to improve the stability of the coating surface density.

As shown in fig. 2, the coating valve control structure of the present embodiment further includes a guide member for guiding the movement of the coating valve stem 22 or the return valve stem 24 in the axial direction of the feed port 101 or the return port 111. Specifically, the guide member includes a guide block 31, an end portion of the coating valve rod 22 or the return valve rod 24 is screwed to one end of the guide block 31, the other end of the guide block 31 is rotatably connected to the connecting rod 43, a groove 311 matched with the valve body 30 is formed in the peripheral side of the guide block 31, and the guide block 31 is slidably connected to the inside of the valve body 30 through the groove 311, so that the coating valve rod 22 or the return valve rod 24 is stably moved.

As shown in fig. 2, the rotary table of the present embodiment includes a ramp 40 and a rotary roller 42, the rotary roller 42 has an axial direction corresponding to the diameter of the ramp 401, an output end of the servo motor 60 is detachably coupled to the ramp 40, and the rotary roller 42 is detachably hinged to the ramp 401 by a bolt so as to be easily replaced when each component is damaged. Specifically, a mounting hole 51 is formed in the center of the ramp 40, a roller bearing 50 which rotates synchronously is inserted into the mounting hole 51, the head of the roller bearing 50 is located in the ramp 40, the rod of the roller bearing 50 penetrates out of the ramp 40 and is in threaded connection with a connecting cylinder 52, the connecting cylinder 52 is connected with the ramp 40 through bolts, the number of the bolts is at least two, and the output end of the servo motor 60 is inserted into the connecting cylinder 52 and drives the connecting cylinder 52 to rotate.

It will be appreciated that actuating the servo motor 60 rotates the connector barrel 52, and that the connector barrel 52 is rotated synchronously by the roller bearing 50 and the bolt which are threadably engaged with the ramp 40. Wherein, the circumference of the output end of the servo motor 60 and the circumference of the head of the roller bearing 50 are provided with a convex block or a groove 311, the inner wall of the connecting cylinder 52 and the inner wall of the ramp 40 are provided with a groove 311 matched with the convex block in an inserting manner or a convex block matched with the groove 311, so that the synchronization can be realized during the rotation through the inserting and matching of the servo motor 60 and the connecting cylinder 52, the ramp 40 and the roller bearing 50.

Furthermore, the two ends of the connecting rod 43 are provided with spherical parts 431, the connecting rod 43 is ball-hinged on the guide block 31 and the rotating roller 42 through the spherical parts 431, and the spherical contact of the spherical parts 431 can match with the rotation of the ramp 40 to drive the connecting rod 43 to push and pull, so that the included angle between the connecting rod 43 and the ramp 40 is adaptively adjusted.

The operation of the coating valve control structure will be described with reference to fig. 1 and 2. Two servo motors 60 are started to rotate to drive the inclined table 40 to rotate, the rotary roller 42 on the surface of the inclined table 40 pushes or pulls the connecting rod 43 in a reciprocating mode when rotating, the guide block 31 is synchronously driven to move in the valve body 30 along the rotating axial direction of the servo motors 60, the coating valve rod 22 connected with the guide block 31 drives the coating valve core 21 to move so as to intermittently close or open the feed port 101, the slurry flow rate and the coating gap length (namely the length of white residue during coating) of the feed port 101 are accurately controlled, the backflow valve rod 24 connected with the guide block 31 drives the backflow plug 23 to move so as to intermittently close or open the backflow port 111, and opening of the backflow valve body 11 and backflow flow rate of the slurry are accurately controlled.

It is to be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A coating valve control structure provided in a valve body (30) and connected to a block piece (20) for adjusting the block piece (20) to intermittently block a feed port (101) or a return port (111), comprising:

the rotary table is rotationally arranged in the valve body (30), the rotary table and the plugging piece (20) are coaxially arranged, and the end face, facing the plugging piece (20), of the rotary table is provided with an inclined surface (401);

one end of the connecting rod (43) is rotatably connected with the plugging piece (20), the other end of the connecting rod (43) is rotatably connected to the inclined plane (401), and the connecting rod (43) and the rotating table are arranged in an included angle mode in the axial direction; and

the driving piece is used for driving the rotating platform to rotate.

2. Coating valve control structure according to claim 1, characterized in that the drive comprises a servo motor (60).

3. Coating valve control structure according to claim 2, characterized in that it further comprises a guide guiding the movement of the block piece (20) in the axial direction of the valve body (30).

4. The coating valve control structure according to claim 3, wherein the guide member comprises a guide block (31), the connecting rod (43) and the blocking member (20) are connected with both ends of the guide block (31), a groove (311) matched with the valve body (30) is opened on the peripheral side of the guide block (31), and the guide block (31) is slidably connected in the valve body (30) through the groove (311).

5. The coating valve control structure of claim 4, wherein the rotary stage comprises:

the output end of the servo motor (60) is detachably connected with the inclined table (40);

a rotating roller (42), said rotating roller (42) being hinged on said ramp (401).

6. The coating valve control structure according to claim 5, wherein the moving distance of the guide block (31) is a, and the difference between the highest point and the lowest point of the slope (401) of the connecting rod (43) is b, satisfying the following formula: a-b.

7. The coating valve control structure according to claim 5, wherein both ends of the connection rod (43) are provided with spherical portions (431), and the connection rod (43) is ball-hinged to the guide block (31) and the rotating roller (42) through the spherical portions (431).

8. A coating valve comprising a coating valve control structure according to any one of claims 1 to 7, further comprising a feed valve body (10) and a return valve body (11) which are communicated through a communication line, the feed valve body (10) and the return valve body (11) being respectively connected to the valve body (30), the feed valve body (10) being provided with a feed port (101), the return valve body (11) being provided with a return port (111), the feed port (101) and the return port (111) being provided with a blocking piece (20).

9. The application valve according to claim 8, wherein the block piece (20) comprises:

the coating valve core (21) is arranged in the feeding valve body (10), and the coating valve core (21) is connected with a coating valve rod (22);

the backflow plug (23) is installed in the backflow valve body (11), the backflow plug (23) is connected with a backflow valve rod (24), and the coating valve rod (22) and the backflow valve rod (24) are respectively connected with the coating valve control structure.

10. The coating valve according to claim 8, characterized in that sealing rings (1111) are provided at the feed opening (101) and the return opening (111).

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