Battery cell protective film coating stable feeding control device

Abstract

The utility model relates to a stable feeding control device for battery cell protective film coating, which comprises a plurality of glue storage tanks and a gluing tank, any more than two glue storage tanks are respectively connected with a multi-way pneumatic valve through one-to-one corresponding glue feeding pipelines, and a glue feeding pump, a first pressure sensor, an electromagnetic pressure reducing valve and a second pressure sensor are sequentially arranged on the glue feeding pipelines. The multi-way pneumatic valve is connected with the gear pump, the gear pump is connected with the static mixer, the static mixer is connected with the overflow groove, the overflow groove is connected with the gluing groove in an overflow mode, and the multi-way pneumatic valve, the glue feeding pump, the first pressure sensor, the electromagnetic pressure reducing valve, the second pressure sensor and the gear pump are connected with the controller. The device is simple in structure, capable of giving consideration to multi-glue switching and stable in gluing.

Description

TECHNICAL FIELD

[0001] The utility model relates to a film production device, specifically to a battery cell protection film coating stable feed control device. BACKGROUND

[0002] In the existing battery cell protection film production, during the protection film gluing operation, the gluing viscosity is different when multiple glues are switched, the glue supply flow is unstable, and the flow shock wave in the glue feeding groove fluctuates, which can directly affect the gluing operation of the gluing roller, thereby causing the protection film gluing amount and uniformity problems. SUMMARY

[0003] The utility model provides a battery cell protection film coating stable feed control device which is simple in structure and can balance multiple glue switching and stable gluing.

[0004] The utility model discloses a battery cell protection film coating stable feed control device, which comprises a plurality of glue storage tanks and a glue feeding groove, characterized in that: any two or more glue storage tanks are connected to a one-to-one corresponding glue feeding pipeline through a multi-way pneumatic valve, a glue feeding pump, a first pressure sensor, an electromagnetic pressure reducing valve and a second pressure sensor are sequentially arranged on the glue feeding pipeline, the multi-way pneumatic valve is connected to a gear pump, the gear pump is connected to a static mixer, the static mixer is connected to an overflow tank, the overflow tank is connected to the glue feeding groove through overflow, and the multi-way pneumatic valve, the glue feeding pump, the first pressure sensor, the electromagnetic pressure reducing valve, the second pressure sensor and the gear pump are connected to a controller.

[0005] The upper and lower liquid level sensors are connected to the controller.

[0006] The upper and lower liquid level sensors are tuning fork liquid level sensors.

[0007] A volumetric flowmeter is further arranged between the electromagnetic pressure reducing valve and the second pressure sensor.

[0008] A volumetric flowmeter is further arranged between the gear pump and the static mixer.

[0009] The utility model discloses a plurality of glue reservoirs of multiple glue are switched on demand and are pumped through glue feeding pipeline, and the first pressure sensor controls the pressure of glue feeding pump, and then the electromagnetic pressure reducing valve controls stable pressure reduction, and then the volumetric flowmeter is measured, and the second pressure sensor monitors pressure fluctuation, thereby completing the stable voltage of single glue glue feeding, and the stable voltage control mode of glue feeding pressure increasing and pressure reducing can guarantee the flow and pressure stability of gear pump glue feeding of multiple pneumatic valve switching, meet the demand of glue coating speed meter, and when the gear pump pumps, do not directly feed the glue coating groove, feed the static mixer buffer glue and reduce the feeding fluctuation, and then overflow to the glue coating groove through the overflow tank, can fully eliminate the fluctuation generated by feeding flow, combine the overflow feeding speed and flow of upper and lower liquid level sensor control in the glue coating groove, fully guarantee that the glue coating of glue coating roller is not affected by fluctuation, and it is beneficial to meet the high-precision stable demand of multiple glue switching coating of the electric core protective film. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is structural schematic diagram of the utility model.

[0011] In the drawing: glue reservoir 1, glue feeding pipeline 2, glue feeding pump 3, first pressure sensor 4, electromagnetic pressure reducing valve 5, volumetric flowmeter 6, second pressure sensor 7, multiple pneumatic valve 8, gear pump 9, static mixer 10, overflow tank 11, glue coating groove 12, glue coating roller 13, upper sound fork liquid level sensor 14, lower sound fork liquid level sensor 15. DETAILED DESCRIPTION

[0012] The following is further illustrated in conjunction with the drawings and examples.

[0013] Figure 1 As shown, a kind of electric core protective film coating stable feed control device, including multiple glue reservoirs 1, multiple glue reservoirs 1 respectively through one-to-one corresponding glue feeding pipeline 2 connect multiple pneumatic valve 8 and carry out switching feeding to multiple pneumatic valve, glue feeding pipeline 2 is sequentially provided with glue feeding pump 3, first pressure sensor 4, electromagnetic pressure reducing valve 5, volumetric flowmeter 6, second pressure sensor 7, multiple pneumatic valve 8 connects gear pump 9, gear pump 9 connects static mixer 10, static mixer 10 connects overflow tank 11, overflow tank 11 overflow connects glue coating groove 12, glue coating groove 12 is equipped with corresponding upper sound fork liquid level sensor 14, lower sound fork liquid level sensor 15 not less than the lowest point of glue coating roller 13.

[0014] In the drawing of the embodiment, each multiple pneumatic valve 8 adopts three-way, and correspondingly connects two glue reservoirs;According to actual demand and glue property, each multiple pneumatic valve can adopt four-way or above, correspond to more than three glue reservoirs.

[0015] In the embodiment, multiple pneumatic valve, glue feeding pump, first pressure sensor, electromagnetic pressure reducing valve, volumetric flowmeter, second pressure sensor, gear pump, upper and lower sound fork liquid level sensor all connect controller.

[0016] On the basis of the present embodiment, a positive displacement flowmeter can also be provided between the gear pump and the static mixer.

Claims

1. A stable feeding control device for coating protective film of battery cells, comprising multiple glue storage tanks and a coating tank, characterized in that: Any two or more glue storage tanks are connected to a multi-port pneumatic valve via corresponding glue delivery pipelines. A glue delivery pump, a first pressure sensor, an electromagnetic pressure reducing valve, and a second pressure sensor are sequentially installed on the glue delivery pipelines. The multi-port pneumatic valve is connected to a gear pump, the gear pump is connected to a static mixer, the static mixer is connected to an overflow tank, and the overflow tank overflows into the glue application tank. The multi-port pneumatic valve, glue delivery pump, first pressure sensor, electromagnetic pressure reducing valve, second pressure sensor, and gear pump are connected to a controller.

2. The battery cell protective film coating stable feeding control device according to claim 1, characterized in that: The adhesive coating tank is equipped with upper and lower liquid level sensors, which are connected to a controller.

3. The battery cell protective film coating stable feeding control device according to claim 2, characterized in that: The upper and lower liquid level sensors are tuning fork liquid level sensors.

4. The battery cell protective film coating stable feeding control device according to claim 1, characterized in that: A volumetric flow meter is also installed between the electromagnetic pressure reducing valve and the second pressure sensor.

5. The battery cell protective film coating stable feeding control device according to claim 1, characterized in that: A volumetric flow meter is also installed between the gear pump and the static mixer.

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