Squeezing type dispensing mechanism for coating machine head

Abstract

The utility model provides an extrusion type dispensing mechanism for a coating machine head. The extrusion type dispensing mechanism comprises an air cylinder, a valve body, a closable conical valve body, a sealing washer, an upper valve rod, a first conical sealing gasket, a lower valve rod, a conical feeding joint, a dispensing head, a shaft spring seal, a sealing top block, a hexagonal thin nut, a hexagon socket cap screw, a stainless steel pipe joint, a pipe joint and a second conical sealing gasket, the shaft spring seal and the sealing top block are sequentially arranged on the upper valve rod in a sleeving mode, and the upper valve rod is connected with the air cylinder. The lower valve rod is sleeved with the first conical sealing gasket. The closable conical valve body and the sealing washer are arranged on the valve body in a sleeving mode. The lower end of the conical feeding joint is connected with the dispensing head; the lower end of the lower valve rod is sleeved with the second conical sealing gasket. The stainless steel pipe joint is connected with the valve body, and the pipe joint is connected with the air cylinder. The glue dispensing device is uniform in glue dispensing, the glue dispensing thickness meets the requirement, the labor and material cost can be effectively reduced, and the production efficiency is high.

Description

Technical Field

[0001] The utility model relates to a glue dispensing mechanism, in particular to an extrusion type coating machine head glue dispensing mechanism used for new energy battery front-end equipment. Background Art

[0002] The coating machine is a key equipment for manufacturing new energy battery pole pieces. The structure and processability of the equipment are one of the key factors in the coating process. Nowadays, in order to optimize battery safety issues and solve battery life issues, many battery manufacturers have optimized battery processes. For example, dispensing glue is performed when coating the positive electrode piece, and a ceramic edge is formed after entering the oven. The ceramic edge has the function of inhibiting positive electrode overheating and polarization, which can limit the electrochemical reaction inside the battery, thereby preventing the battery from overheating, catching fire and exploding; in addition, the ceramic edge of the battery positive electrode can also reduce the oxidation reaction and electrochemical corrosion inside the battery, slow down the aging rate and damage degree of the positive electrode material, and thus improve the battery life.

[0003] Therefore, battery manufacturers have higher requirements for dispensing, such as uniformity and thickness of dispensing. Nowadays, the dispensing mechanism of many coating equipment manufacturers cannot meet the requirements of battery manufacturers for the effect of dispensing optimization, and there will be problems with insufficient dispensing thickness and uniformity, especially when dispensing with wide width coating, there are multiple dispensing ports. If the thickness of a single or several ceramic edges does not meet the requirements, it will cause a lot of waste of raw materials and foils, which will also increase labor and material costs and seriously affect production efficiency. Utility Model Content

[0004] The utility model aims to provide an extrusion type coating machine head dispensing mechanism, aiming to solve the problem of uneven dispensing and insufficient dispensing thickness caused by the influence of air on fluid when dispensing battery pole pieces.

[0005] In this regard, the utility model provides an extrusion type coating machine head dispensing mechanism, including a cylinder, a valve body, a closable conical valve body, a sealing gasket, an upper valve stem, a first conical sealing gasket, a lower valve stem, a conical feed joint, a dispensing head, a shaft-use pan plug seal, a sealing top block, a hexagonal thin nut, a hexagon socket head screw, a stainless steel pipe joint, a pipe joint and a second conical sealing gasket;

[0006] The shaft-mounted universal plug seal and the sealing top block are sequentially sleeved on the upper valve stem, and the upper valve stem is connected to the cylinder; the first conical sealing gasket is sleeved on the external threaded head end of the lower valve stem, and the lower valve stem is connected to the upper valve stem; the closable conical valve body and the sealing gasket are sleeved on the valve body; the closable conical valve body is connected and locked to the valve body through the sealing gasket, the conical feed joint and the hexagonal cylindrical head screw, and the lower end of the conical feed joint is connected to the dispensing head; the second conical sealing gasket is sleeved on the lower end of the lower valve stem and fixed by the hexagonal thin nut; the stainless steel pipe joint is connected to the valve body, and the pipe joint is connected to the cylinder.

[0007] A further improvement of the utility model is that the upper valve stem is connected to the cylinder through an external thread head, and the cylinder and the valve body are connected through the hexagon socket head screw.

[0008] A further improvement of the utility model is that a threaded hole is provided on the right side of the valve body, and the upper valve stem is supported by a screw matched with the threaded hole to lock the connection between the valve stem and the upper valve stem, and then the sealing gasket and the closable conical valve body are inserted in sequence.

[0009] A further improvement of the utility model is that the lower part of the closable conical valve body is connected to the sealing gasket and the conical feed joint, and is connected and locked to the valve body by the hexagon socket cylindrical head screw; the lower end of the conical feed joint is connected to the dispensing head by an external thread.

[0010] A further improvement of the utility model is that the threaded hole at the right end of the valve body and the threaded hole at the left end of the closable conical valve body are respectively connected to stainless steel pipe joints, and the left end of the cylinder is connected to the pipe joint.

[0011] A further improvement of the utility model is that the shaft is installed on the valve body in cooperation with a universal plug seal and a sealing top block, and the middle of the valve body is provided with the connected cylinder and an upper valve stem.

[0012] A further improvement of the utility model is that the fixed cylinder adopts a straight up and down piston rod.

[0013] Compared with the prior art, the utility model has the following beneficial effects: it includes a cylinder, a valve body, a closable conical valve body, a sealing gasket, an upper valve stem, a conical sealing gasket, a lower valve stem, a conical feed joint, a dispensing head, a shaft universal plug seal, a sealing top block, a hexagonal thin nut, a hexagonal cylindrical head screw, a stainless steel pipe joint, a pipe joint and a conical sealing gasket, and the cylinder pushes and pulls the valve stem including the upper valve stem and the lower valve stem, so that the two sets of valve stems (including the upper valve stem and the lower valve stem) connected thereto move up and down, thereby enabling the valve stem connected thereto to move up and down. The conical sealing gasket on the upper end forms a closed state with the upper end of the closable conical valve body and an unsealed state at the lower end, or the upper end forms an unsealed state and the lower end forms a sealed state, so as to change the flow direction of the fluid; therefore, the utility model can effectively solve the problems of uneven glue dispensing and unsatisfactory glue dispensing thickness caused by the increased resistance in the pipeline caused by the mixed flow of fluid and air when the extrusion coater is dispensing glue, and can effectively reduce the large amount of waste of raw materials and foils, reduce labor and material costs, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the installation structure of an embodiment of the utility model;

[0015] Figure 2 It is a cross-sectional structural schematic diagram of an embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of a top view of an embodiment of the utility model;

[0017] Figure 4 It is a stereogram of an embodiment of the utility model.

[0018] Figure identification: 1-cylinder; 2-valve body; 3-closable conical valve body; 4-sealing gasket; 5-upper valve stem; 6-conical sealing gasket; 7-lower valve stem; 8-conical feed connector; 9-dispensing head; 10-shaft universal plug seal; 11-sealing top block; 12-hexagonal thin nut; 13-hexagon socket cylindrical head screw; 14-stainless steel pipe joint; 15-pipe joint; 16-conical sealing gasket. DETAILED DESCRIPTION

[0019] The utility model is described below in conjunction with the accompanying drawings and embodiments.

[0020] like Figures 1 to 4 As shown, this embodiment provides an extrusion coating machine head dispensing mechanism, including a cylinder 1, a valve body 2, a closable conical valve body 3, a sealing gasket 4, an upper valve stem 5, a first conical sealing gasket 6, a lower valve stem 7, a conical feed joint 8, a dispensing head 9, a shaft universal plug seal 10, a sealing top block 11, a hexagonal thin nut 12, a hexagon socket cylindrical head screw 13, a stainless steel pipe joint 14, a pipe joint 15, and a second conical sealing gasket 16.

[0021] Among them, in this embodiment, the shaft-use pan-seal 10 and the sealing top block 11 are first sequentially sleeved on the upper valve stem 5; the upper valve stem 5 has an external threaded head, which is connected to the cylinder 1 through the external threaded head, and then connected to the cylinder 1 and the valve body 2 by the hexagon socket head screw 13 after the connection; then, the first conical sealing gasket 6 is sleeved on the external threaded head end of the lower valve stem 7, and then the lower valve stem 7 is connected to the upper valve stem 5. When connecting, the upper valve stem 5 can be supported by the threaded hole on the right side of the valve body 2 and its screws, so as to lock the connection between the valve stem 7 and the upper valve stem 5. After locking, the sealing gasket 4 and the closable conical valve are sequentially sleeved. body 3; then, after the second conical sealing gasket 16 is inserted into the lower valve stem 7, it is installed on the lower end external thread of the lower valve stem 7 with two hexagonal thin nuts 12, thereby fixing the position of the second conical sealing gasket 16 and preventing it from loosening, the sealing gasket 4 and the conical feed joint 8 are matched below the closable conical valve body 3, and are connected and locked to the valve body 2 through the hexagon socket cylindrical head screw 13; finally, the lower end external thread of the conical feed joint 8 is connected to the dispensing head 9, the threaded hole at the right end of the valve body 2 and the threaded hole at the left end of the closable conical valve body 3 are respectively connected to the stainless steel pipe joint 14, and the left side of the cylinder 1 is connected to the pipe joint 15.

[0022] The actual working process of this embodiment is as follows: when the equipment is ready to apply glue, the glue can be started in advance, and the piston rod of the cylinder 1 is retracted, so that the upper valve stem 5 and the lower valve stem 7 connected to the cylinder 1 move upward, and the second conical sealing gasket 16 at the lower end of the lower valve stem 7 forms a sealing state with the lower end of the closable conical valve body 3, and a part of the backflow is taken, so as to discharge the air in the pipe and the glue dispensing mechanism in advance; then the piston rod of the cylinder 1 is pushed out, so that the connected upper valve stem 5 and the lower valve stem 7 move downward, and the first conical sealing gasket 6 at the upper end of the lower valve stem 7 forms a sealing state with the closable conical valve body 3 for glue dispensing, so as to achieve uniformity during glue dispensing, make the glue dispensing more uniform and flat and the thickness meets the requirements, and achieve the effect required for production.

[0023] To summarize, in this embodiment, the cylinder 1 pushes and pulls the valve stem including the upper valve stem 5 and the lower valve stem 7, so that the two groups of valve stems (including the upper valve stem 5 and the lower valve stem 7) connected thereto move up and down, thereby enabling the first conical sealing gasket 6 connected to the valve stem to form a closed state with the upper end of the closable conical valve body 3 and an unsealed state at the lower end, or an unsealed state at the upper end and a sealed state at the lower end, so as to change the flow direction of the fluid; therefore, this embodiment can effectively solve the problem of uneven glue dispensing and unsatisfactory glue dispensing thickness caused by increased resistance in the pipeline due to the mixed flow of fluid and air when the extrusion coater is dispensing glue, and can effectively reduce the large amount of waste of raw materials and foils, reduce labor and material costs, and improve production efficiency.

[0024] Furthermore, the shaft of the present embodiment is equipped with a pan-seal 10 and a sealing top block 11 on the valve body 2, with the cylinder 1 and the upper valve stem 5 connected in the middle, which plays a role of double sealing and guiding; the cylinder 1 adopts a straight up and down piston rod to avoid friction damage to the cylinder body of the cylinder 1 caused by the left and right shaking of the piston rod; the cylinder 1 is respectively connected to the upper valve stem 5 and the lower valve stem 7, and is provided with a first conical sealing gasket 6 and a second conical sealing gasket 16 in the middle, and is fixedly installed with two hexagonal thin screws 12, and the dispensing fluid enters from the left side of the closable conical valve body 3, so that when the cylinder 1 is pushed out, the upper part of the closable conical valve body 3 is sealed, and the dispensing fluid flows from the bottom for dispensing, the piston rod of the cylinder 1 is retracted, the lower part of the closable conical valve body 3 is sealed, and the dispensing fluid flows upward to the stainless steel pipe joint 14 and enters the return pipe, so that the flow direction of the dispensing fluid can be controlled by a simple up and down movement of the cylinder piston rod, and the return function is added. The internal cone of the conical feed connector 8 can increase the fluid flow rate, that is, a conical hole is opened in the middle of the conical feed connector 8 connected to the dispensing head, which can change the flow rate of the dispensing fluid, thereby speeding up the dispensing fluid speed, thereby achieving a faster dispensing speed and saving time costs.

[0025] The specific implementation methods described above are preferred implementation methods of the present utility model, and are not intended to limit the specific implementation scope of the present utility model. The scope of the present utility model includes but is not limited to the specific implementation methods. All equivalent changes made in accordance with the shape and structure of the present utility model are within the protection scope of the present utility model.

Claims

1. An extrusion coating machine head dispensing mechanism, characterized in that: It comprises a cylinder (1), a valve body (2), a closable conical valve body (3), a sealing gasket (4), an upper valve stem (5), a first conical sealing gasket (6), a lower valve stem (7), a conical feed joint (8), a dispensing head (9), a shaft-use universal plug seal (10), a sealing top block (11), a hexagonal thin nut (12), a hexagon socket head screw (13), a stainless steel pipe joint (14), a pipe joint (15) and a second conical sealing gasket (16); The shaft-use pan-seal (10) and the sealing top block (11) are sequentially sleeved on the upper valve stem (5), and the upper valve stem (5) is connected to the cylinder (1); the first conical sealing gasket (6) is sleeved on the external threaded head end of the lower valve stem (7), and the lower valve stem (7) is connected to the upper valve stem (5); the closable conical valve body (3) and the sealing gasket (4) are sleeved on the valve body (2); the closable conical valve body (3) is sealed by the sealing gasket (4) ), a conical feed connector (8) and a hexagon socket head screw (13) are connected and locked to the valve body (2), the lower end of the conical feed connector (8) is connected to the dispensing head (9); the second conical sealing gasket (16) is inserted into the lower end of the lower valve stem (7) and fixed by the hexagonal thin nut (12); the stainless steel pipe connector (14) is connected to the valve body (2), and the pipe connector (15) is connected to the cylinder (1).

2. The extrusion coating machine head dispensing mechanism according to claim 1, characterized in that: The upper valve stem (5) is connected to the cylinder (1) via an external threaded head, and the cylinder (1) and the valve body (2) are connected via the hexagon socket head screw (13).

3. The extrusion coating machine head dispensing mechanism according to claim 1, characterized in that: A threaded hole is provided on the right side of the valve body (2), and the upper valve stem (5) is supported by a screw matched with the threaded hole to lock the connection between the valve stem (7) and the upper valve stem (5), and then the sealing gasket (4) and the closable conical valve body (3) are inserted in sequence.

4. The extrusion coating machine head dispensing mechanism according to claim 1, characterized in that: The lower part of the closable conical valve body (3) is connected to the sealing gasket (4) and the conical feed connector (8), and is connected and locked to the valve body (2) via the hexagon socket head screw (13); the lower end of the conical feed connector (8) is connected to the dispensing head (9) via an external thread.

5. The extrusion coating machine head dispensing mechanism according to claim 1, characterized in that: The threaded hole at the right end of the valve body (2) and the threaded hole at the left end of the closable conical valve body (3) are respectively connected to stainless steel pipe joints (14), and the left end of the cylinder (1) is connected to a pipe joint (15).

6. The extrusion coating head dispensing mechanism according to any one of claims 1 to 5, characterized in that: The shaft-use pan-seal (10) and the sealing top block (11) are cooperatively mounted on the valve body (2), and the cylinder (1) and the upper valve stem (5) which are connected to each other are arranged in the middle of the valve body (2).

7. The extrusion coating head dispensing mechanism according to any one of claims 1 to 5, characterized in that: The cylinder (1) adopts a piston rod that goes straight up and down.

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