Fluid supply device and slitter cleaning device

Abstract

This utility model discloses a fluid supply device and a slitting blade cleaning device. The fluid supply device includes: a storage tank with an outlet and a return outlet, which can store fluid; a pump with an inlet and an outlet, the inlet of which is connected to the outlet of the storage tank; a guide pipe connected to the outlet of the pump, the end of which can be connected to a nozzle; a return pipe with its two ends connected to the return outlet of the storage tank and the guide pipe, respectively, and equipped with a valve; and a pressure regulating valve installed on the guide pipe. This fluid supply device uses the pump to power the fluid in the storage tank to be transported to the guide pipe and output. Adjusting the pressure regulating valve on the guide pipe can regulate the flow rate of the fluid in the guide pipe, and opening and closing the valve on the return pipe can further regulate the flow rate of the fluid in the guide pipe.

Description

Technical Field

[0001] This utility model relates to the field of film slitting machine equipment, specifically a fluid supply device and a slitting blade cleaning device. Background Technology

[0002] In the lithium battery industry, the foil materials used to manufacture the positive and negative electrodes need to be slit using a slitting blade. During the slitting process, the slitting blade continuously rubs against the material, generating metal shavings and dust that adhere to the blade surface. This accelerates the wear of the slitting blade edge and shortens its lifespan. Slitting blades contaminated with metal shavings and dust can also easily cause problems such as inaccurate slitting accuracy and poor cut quality.

[0003] Currently, common slitting blade cleaning devices, such as CN219563340U disclosed on August 22, 2023, a slitting blade cleaning mechanism for a film slitting machine, use an infusion pump to directly deliver liquid from the storage tank to the cleaning sponge, making it difficult to control the amount of liquid. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this utility model provides a fluid supply device and a cutting blade cleaning device. The device uses a pump to provide power to transport the fluid in the storage tank to the drainage pipe and output it. Adjusting the pressure regulating valve on the drainage pipe can regulate the flow rate of the fluid in the drainage pipe. By opening and closing the valve on the return pipe, the flow rate of the fluid in the drainage pipe can be further adjusted.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a fluid supply device, comprising:

[0006] A storage tank, which is provided with an outlet and a return outlet, is capable of storing fluid;

[0007] A pump having an inlet and an outlet, the inlet of the pump being connected to the outlet of the storage tank;

[0008] A drainage pipe is connected to the outlet of the pump, and the end of the drainage pipe facing away from the pump can be connected to a nozzle;

[0009] The return pipe has two ends connected to the return port of the storage tank and the drain pipe, respectively, and the return pipe is equipped with a valve.

[0010] A pressure regulating valve is installed on the drainage pipe.

[0011] The above technical solution uses a pump to power the fluid in the storage tank to be transported to the drainage pipe and output. The flow rate of the fluid in the drainage pipe can be adjusted by adjusting the pressure regulating valve on the drainage pipe. The flow rate of the fluid in the drainage pipe can be further adjusted by opening and closing the valve on the return pipe.

[0012] Furthermore, the pump includes a pneumatic diaphragm pump, the inlet of which is equipped with a pressure regulating valve. The pneumatic diaphragm pump is pneumatically driven, requires no electricity, and is suitable for conveying flammable materials such as alcohol.

[0013] Furthermore, the storage tank is equipped with a liquid level sensor, which can monitor the liquid level inside the tank. The liquid level sensor allows for real-time observation of the fluid volume in the storage tank, enabling staff to replenish the fluid when needed.

[0014] Furthermore, the pressure regulating valve includes a speed control valve. The speed control valve is driven by an electric actuator, which employs gear transmission or a servo motor, featuring a compact structure, high wear resistance, and a service life typically of 5-10 years. Compared to pneumatic valves, electric valves are simpler to maintain, requiring only periodic inspections of the motor and lubrication system.

[0015] Furthermore, the return pipe is equipped with the speed control valve. Since the return pipe and the drainage pipe are connected, the fluid flow rate in the return pipe will affect the flow rate in the drainage pipe. By adjusting the speed control valve on the return pipe, the fluid flow rate in the return pipe can be changed, thereby regulating the flow rate of the fluid in the drainage pipe.

[0016] Furthermore, the system also includes a PLC controller. The liquid level sensor and the speed control valve are respectively connected to the PLC controller, which can acquire the detection data from the liquid level sensor. When the PLC controller detects that the liquid level is below the preset value, it issues an alarm, prompting the operator to add fluid.

[0017] Furthermore, a T-connector is connected to the end of the drainage pipe opposite to the pump, and the interface of the T-connector can be connected to a nozzle. The T-connector allows the fluid to be flexibly diverted to different branches.

[0018] Furthermore, the drainage tube is equipped with a one-way valve.

[0019] A slitting knife cleaning device using the above-described fluid supply device, the slitting knife cleaning device having a nozzle connected to the end of the drain pipe opposite to the pump.

[0020] Based on the above technical solution, the beneficial effects of this utility model are as follows:

[0021] The fluid supply device disclosed in this application uses a pump to provide power to transport fluid from the storage tank to the diversion pipe and output it. The flow rate of the fluid in the diversion pipe can be adjusted by adjusting the pressure regulating valve on the diversion pipe.

[0022] In this application, the drainage pipe and the storage tank are connected by a return pipe, and the flow rate of the fluid in the drainage pipe can be further adjusted by opening and closing the valve on the return pipe.

[0023] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the fluid supply device in an embodiment of this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the fluid supply device with a second three-way connector in an embodiment of this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the fluid supply device with a delivery pipe in an embodiment of this utility model.

[0028] The reference numerals in the above figures are as follows: 1. Storage tank; 2. Liquid level sensor; 31. Connecting pipe; 32. Drain pipe; 33. Return pipe; 331. Valve; 4. Pump; 5. Pressure regulating valve; 61. First tee connector; 62. Second tee connector; 7. Delivery pipe. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0031] Example: This example discloses a fluid supply device, including:

[0032] Storage tank 1 is used to store fluid. Storage tank 1 is provided with a return port and a discharge port. Storage tank 1 can be installed in a predetermined location.

[0033] In some feasible embodiments, the storage tank 1 is bolted to a wall or to the frame of the slitting and cleaning device.

[0034] The storage tank 1 is equipped with a liquid inlet. The storage tank 1 is also equipped with a liquid level sensor 2. Figure 1 As shown, the liquid level sensor 2 is a pressure sensor for measuring liquid level. In some feasible embodiments, the liquid level sensor 2 includes a hydrostatic level transmitter. This transmitter is based on the principle that the measured hydrostatic pressure of the liquid is proportional to its height. It uses an isolated diffused silicon sensing element or a ceramic capacitive pressure sensor to convert the hydrostatic pressure into an electrical signal. After temperature compensation and linear correction, it is converted into a standard electrical signal (typically 4–20 mA / 1–5 VDC). The liquid level sensor 2 allows for real-time monitoring of the liquid level in the storage tank 1, enabling personnel to replenish fluid from the inlet of the storage tank 1 when the fluid volume is insufficient.

[0035] The liquid level sensor 2 is connected to a PLC controller, and the liquid level sensor 2 transmits the detected liquid level information to the PLC controller. When the liquid level is lower than a preset value, the PLC controller prompts the operator to add fluid via an audible and visual alarm.

[0036] The storage tank 1 is connected to a pump 4, which provides the function of facilitating the flow of fluid within the storage tank 1. The outlet of the storage tank 1 and the inlet of the pump 4 are connected by a connecting pipe 31.

[0037] The pump outlet is connected to a drain pipe 32, and the end of the drain pipe 32 facing away from the pump 4 can be connected to a nozzle. A pressure regulating valve 5 is provided on the drain pipe 32.

[0038] In some feasible embodiments, the pressure regulating valve 5 includes a speed control valve. The speed control valve is an integrated pressure reducing valve and throttle valve used to control the flow rate of fluid media, primarily for regulating speed in hydraulic or pneumatic systems. The speed control valve is driven by an electric actuator, which employs gear transmission or a servo motor, resulting in a compact structure, high wear resistance, and a service life typically of 5-10 years. Compared to pneumatic valves, electric valves only require periodic inspection of the motor and lubrication system, simplifying maintenance.

[0039] A return pipe 33 is also provided between the drainage pipe 32 and the storage tank 1. A first T-joint 61 is provided on the drainage pipe 32. The first T-joint 61 is T-shaped, with its two opposite ports connected to the drainage pipe 32, and its other port connected to the return pipe 33. The end of the return pipe 33 facing away from the first T-joint 61 is connected to the return port of the storage tank 1. A valve 331 is provided on the return pipe 33, which can control the opening and closing of the return pipe 33.

[0040] Through the above technical solution, the pump 4 provides power to transport the fluid in the storage tank 1 to the diversion pipe 32 and output it. Adjusting the pressure regulating valve 5 on the diversion pipe 32 can regulate the flow rate of the fluid in the diversion pipe 32. Since the return pipe 33 connects the diversion pipe 32 and the storage tank 1, opening the valve 331 will divert a portion of the flow in the diversion pipe 32. That is, by opening and closing the valve 331 on the return pipe 33, the flow rate of the fluid in the diversion pipe 32 can be further adjusted.

[0041] In some feasible embodiments, the pump 4 is a unidirectional pneumatic diaphragm pump with a specified flow rate of 15 L / min, suction lift of 1 m, discharge head of 4 m, and outlet pressure of 0.5 MPa. The inlet of the unidirectional pneumatic diaphragm pump is equipped with a pressure regulating valve, which can adjust the air pressure entering the pump, thereby regulating the output flow rate and pressure of the pump 4. The pneumatic diaphragm pump is pneumatically driven, requiring no electricity, thus eliminating concerns about electrical sparks and making it suitable for conveying flammable materials such as alcohol. Furthermore, compared to other pumps (such as centrifugal pumps), the unidirectional pneumatic diaphragm pump has no shaft seal, impeller, or gear structure, relying solely on the reciprocating motion of the diaphragm, making maintenance much simpler.

[0042] In some feasible embodiments, the return pipe 33 is equipped with a speed control valve. Since the return pipe 33 and the drainage pipe 32 are connected, the fluid flow rate in the return pipe 33 affects the flow rate in the drainage pipe 32. Therefore, by adjusting the speed control valve on the return pipe 33 to change the fluid flow rate in the return pipe 33, the flow rate of the fluid in the drainage pipe 32 can be adjusted.

[0043] A one-way valve is provided on the drainage pipe 32, and the one-way valve is located on the side of the first tee connector 61 away from the pump 4. The one-way valve is used to ensure that the fluid in the drainage pipe 32 can only flow outward.

[0044] In some feasible implementations, a one-way valve is provided on the drainage pipe 32 and located between the pump 4 and the first tee joint 61.

[0045] The aforementioned connecting pipe 31, drainage pipe 32, and return pipe 33 are all made of PVDF flexible tubing.

[0046] In some feasible embodiments, such as Figure 2 As shown, the end of the drainage pipe 32 opposite to the pump 4 is connected to a second tee connector 62, and the interface of the second tee connector 62 can be connected to a nozzle. The second tee connector 62 allows the fluid to be flexibly diverted to different branches.

[0047] like Figure 3 As shown, the interface of the second three-way connector 62 is connected to a delivery pipe 7, and a speed control valve is provided on the delivery pipe 7. The end of the delivery pipe 7 away from the second three-way connector 62 is used to connect to the nozzle.

[0048] This application also discloses a slitting knife cleaning device using the above-mentioned fluid supply device, the slitting knife cleaning device having a nozzle, the nozzle being connected to the end of the drain pipe 33 opposite to the pump, or connected to the interface of the second three-way connector 62.

[0049] The positive electrode of a battery typically uses aluminum foil. The surface of the aluminum foil has a dense oxide film, resulting in low adhesion of aluminum powder generated during slitting. Furthermore, aluminum has good alkali resistance, therefore the slitting blade used for slitting aluminum foil requires a lower flow rate during cleaning. The negative electrode of a battery typically uses copper foil. The copper powder particles generated during the slitting process of negative copper foil are finer and more easily oxidized, resulting in strong adhesion of residues. Therefore, the slitting blade used for slitting copper foil requires a higher flow rate during cleaning. The slitting blade cleaning device disclosed in this application allows for real-time adjustment of the fluid flow rate according to actual needs.

[0050] This utility model uses specific embodiments to illustrate the principle and implementation of the utility model. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the utility model. Therefore, the content of this specification should not be construed as a limitation of the utility model.

Claims

1. A fluid supply device characterized by comprising: include: A storage tank, which is provided with an outlet and a return outlet, is capable of storing fluid; A pump having an inlet and an outlet, the inlet of the pump being connected to the outlet of the storage tank; A drainage pipe is connected to the outlet of the pump, and the end of the drainage pipe facing away from the pump can be connected to a nozzle; The return pipe has two ends connected to the return port and the drain pipe of the storage tank, respectively, and the return pipe is equipped with a valve.

2. The fluid supply apparatus according to claim 1, wherein It also includes a pressure regulating valve, which is disposed on the drainage pipe.

3. The fluid supply apparatus according to claim 2, wherein The pump includes a pneumatic diaphragm pump, and the inlet of the pneumatic diaphragm pump is equipped with a pneumatic pressure regulating valve.

4. The fluid supply apparatus according to claim 2, wherein The storage tank is equipped with a liquid level sensor, which can monitor the liquid level flowing inside the storage tank.

5. The fluid supply apparatus according to claim 4, wherein The pressure regulating valve includes a speed control valve.

6. The fluid supply apparatus according to claim 5, wherein The return pipe is equipped with the speed control valve.

7. The fluid supply apparatus according to claim 6, wherein It also includes a PLC controller, and the liquid level sensor and the speed control valve are respectively connected to the PLC controller. The PLC controller can acquire the detection data of the liquid level sensor.

8. The fluid supply apparatus according to claim 2, wherein The end of the drainage pipe opposite to the pump is connected to a T-connector, and the interface of the T-connector can be connected to a nozzle.

9. The fluid supply apparatus according to claim 2, wherein The drainage tube is equipped with a one-way valve.

10. A slitter cleaning apparatus using the fluid supply apparatus according to any one of claims 1 to 9, characterized by The slitting blade cleaning device has a nozzle, and the nozzle and the end of the drain pipe opposite to the pump are connected.

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