Infiltration box and non-woven fabric solvent infiltration device with infiltration box

Abstract

The utility model provides an infiltration box and a non-woven fabric solvent infiltration device with the infiltration box, wherein the infiltration box can achieve accurate control over the liquid amount and the infiltration position and can recycle waste liquid so as to avoid pollution to surrounding mechanisms and air. The wetting cassette (4) has a wetting block (40) for wetting the non-woven fabric with a solvent, and the wetting block (40) is provided with: an injection port (41) to which the solvent is supplied; a chamber (42) connected to the injection port (41) and storing the solvent supplied from the injection port (41); a plurality of liquid spraying ports (43) which are formed in the side wall of the infiltration block (40), are communicated with the cavity (42), and are used for spraying a solvent to the non-woven fabric; and a liquid guide groove (44) which is formed in the surface of the wetting block (40) provided with the plurality of liquid ejection ports (43), is connected to the plurality of liquid ejection ports (43), and guides the solvent ejected from the plurality of liquid ejection ports (43) to the non-woven fabric.

Description

Technical Field

[0001] The present disclosure relates to an infiltration box and a nonwoven fabric solvent infiltration device having the infiltration box. Background Art

[0002] With the popularization of electronic products such as smart phones, MP3s, and tablet computers, as well as the gradual development of the new energy vehicle industry, the demand for lithium-ion batteries has been continuously increasing, which has also promoted the progress and development of lithium-ion battery technology. In the process of producing lithium batteries, laser cleaning technology is widely used. After the battery pole piece is cleaned by laser, a wiping mechanism such as a non-woven fabric soaked in a cleaning agent or other solvent is used to wipe the battery pole piece.

[0003] In laser cleaning machines, as a wetting mechanism for wetting non-woven fabrics and the like, a mechanism using a spray valve to spray liquid is currently generally used to wet the non-woven fabrics.

[0004] However, when a spray valve is used to wet the non-woven fabric, accurate wetting of the sprayed solvent cannot be achieved, resulting in low utilization of the solvent and the generated liquid mist easily pollutes the surrounding structure and air. Utility Model Content

[0005] Issues to be solved by utility models

[0006] The present invention provides an infiltration box which can realize accurate control of liquid volume and infiltration position and can recycle waste liquid to avoid contamination of surrounding mechanisms and air, and a non-woven fabric solvent infiltration device having the infiltration box.

[0007] Means for solving problems

[0008] In order to solve the above-mentioned problems, one aspect of the present disclosure relates to an infiltration box having an infiltration block for infiltrating a nonwoven fabric with a solvent, wherein:

[0009] The infiltration block has:

[0010] an injection port to which the solvent is supplied;

[0011] a cavity connected to the injection port and used to store the solvent supplied from the injection port;

[0012] a plurality of liquid spraying ports formed on the side wall of the impregnation block and connected to the cavity, for spraying the solvent onto the nonwoven fabric; and

[0013] The liquid guide groove is formed on the surface of the impregnation block where the plurality of liquid spraying ports are provided, and is connected to the plurality of liquid spraying ports, and is used for guiding the solvent sprayed from the plurality of liquid spraying ports to the non-woven fabric.

[0014] In addition, another embodiment of the present disclosure relates to a nonwoven fabric solvent impregnation device, which is used to impregnate a nonwoven fabric with a solvent, and is characterized by comprising:

[0015] a solvent tank storing the solvent;

[0016] The above-mentioned infiltration box;

[0017] a peristaltic pump, which pumps the solvent from the solvent tank to the infiltration box and has a liquid inlet connected to the solvent tank and a liquid outlet connected to the infiltration box; and

[0018] A peristaltic pump controller controls the peristaltic pump.

[0019] Utility Model Effect

[0020] According to the infiltration box and the non-woven fabric solvent infiltration device disclosed in the present invention, the liquid volume and the infiltration position can be accurately controlled, and the waste liquid can be recycled to avoid contamination of surrounding structures and air. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a diagram showing the overall structure of a nonwoven fabric solvent impregnation device.

[0022] Figure 2 It is a diagram showing the structure of a solvent tank.

[0023] Figure 3 It is a diagram showing the specific structure of the infiltration block.

[0024] Description of Reference Numerals

[0025] 100 Non-woven fabric solvent impregnation device

[0026] 1 Solvent tank

[0027] 11 Tank

[0028] 12 Filling port

[0029] 13 liquid outlet

[0030] 14 Liquid level detection mechanism

[0031] 141 Liquid level detection channel

[0032] 142A, 142B Liquid Level Sensor

[0033] 2 Peristaltic pump

[0034] 3 Peristaltic Pump Controller

[0035] 4 Infiltration box

[0036] 40 Infiltration Block

[0037] 41 Inlet

[0038] 42 Cavity

[0039] 43 Liquid spray port

[0040] 44 Liquid guide groove

[0041] 5 Waste box

[0042] 51 First waste liquid box

[0043] 52 Second waste box

[0044] 6 Main frame

[0045] 61, 62 Framework DETAILED DESCRIPTION

[0046] Hereinafter, the specific embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Herein, the dimensions, materials, and specific numerical values ​​shown in the embodiments are merely illustrative and do not limit the present disclosure except for the cases specifically described. In addition, the elements that are not directly related to the present disclosure are omitted from the drawings.

[0047] [Non-woven fabric solvent impregnation device]

[0048] Below, refer to Figure 1 , a diagram of the overall structure of the nonwoven fabric solvent impregnation device 100. Figure 1 As shown, the nonwoven fabric solvent impregnation device 100 mainly includes a solvent tank 1, a peristaltic pump 2, a peristaltic pump controller 3, an impregnation box 4, a waste liquid box 5, and a main frame 6. The solvent tank 1, the peristaltic pump 2, the peristaltic pump controller 3, and the impregnation box 4 are connected by a liquid supply pipe (not shown) to form a delivery path for the solvent from the solvent tank 1 to the impregnation box 4.

[0049] The main frame 6 includes a frame 61 extending in the vertical direction and a frame 62 extending in the horizontal direction on the side of the frame 61. The solvent tank 1 is accommodated in the internal space of the frame 61, and the peristaltic pump 2 and the peristaltic pump controller 3 for controlling the peristaltic pump 2 are arranged on the side wall of the frame 61. The infiltration box 4 is arranged above the frame 62.

[0050] Next, the impregnation box 4, the solvent tank 1, the peristaltic pump 2, the peristaltic pump controller 3, and the waste liquid box 5 which are main components of the nonwoven fabric solvent impregnation device 100 will be described in detail.

[0051] (Infiltration box)

[0052] The impregnation box 4 is a member for spraying a solvent onto the non-woven fabric to impregnate the non-woven fabric with the solvent. Figure 3As shown, the impregnation box 4 has an impregnation block 40 as a main body, and the impregnation block 40 has: an injection port 41, which is supplied with a solvent; a cavity 42, which is connected to the injection port 41 and is used to store the solvent supplied from the injection port 41; a plurality of liquid spraying ports 43, which are formed on the side wall of the impregnation block 40 and connected to the cavity 41, and are used to spray the solvent onto the non-woven fabric; and a liquid guide groove 44, which is formed on the surface of the impregnation block 40 provided with a plurality of liquid spraying ports 43 and is connected to the plurality of liquid spraying ports 43, and is used to guide the solvent sprayed from the plurality of liquid spraying ports 43 to the non-woven fabric.

[0053] Since a liquid guide groove 44 is provided on the surface of the impregnation block 40 where multiple liquid spraying ports 43 are arranged, the solvent is guided toward the non-woven fabric through the liquid guide groove 44, so that the solvent sprayed from the liquid spraying ports 43 has directionality, and the size of the non-woven fabric impregnation area can be accurately controlled to prevent pollution to surrounding structures and air.

[0054] In this embodiment, the diameter of the liquid ejection port is 0.2-0.5 mm, preferably 0.3 mm. The cavity 42 is substantially cylindrical, with a diameter of 0.5 mm and a length of 20 mm.

[0055] By setting the size of the liquid spraying port and the cavity as described above, a structure of a small cavity and multiple micro liquid spraying ports is formed, thereby being able to further accurately control the wetting area of ​​the nonwoven fabric and prevent contamination of surrounding structures and air.

[0056] (Solvent tank)

[0057] The solvent tank 1 has a tank body 11 for storing a solvent, an injection port 12 for injecting the solvent into the tank body 11 is provided at the upper portion of the tank body 11, and a liquid outlet 13 for discharging the solvent is provided at the lower portion of the tank body 11. In order to improve the tolerance of the tank body 11 to the solvent and to increase the service life of the tank body, the tank body 11 is preferably made of stainless steel.

[0058] The solvent tank 1 may also have a liquid level detection mechanism 14 for detecting the liquid level of the solvent in the tank body 11. In this embodiment, the liquid level detection mechanism 14 has a liquid level detection channel 141 connected to the tank body 11, the upper end of the liquid level detection channel 141 is connected to the upper part of the tank body 11, and the lower end of the liquid level detection channel 141 is connected to the lower part of the tank body 11. The liquid level of the solvent in the liquid level detection channel 141 is the same as the liquid level of the solvent in the tank body 11. The liquid level detection channel 141 is made of a transparent material, so by directly observing the liquid level of the solvent in the liquid level detection channel 141, the liquid level of the solvent in the tank body 11 can be easily known. In order to improve the tolerance of the liquid level detection channel 141 to the solvent and increase the service life of the tank body, it is preferred that the liquid level detection channel 141 adopts a corrosion-resistant Teflon tube.

[0059] In this embodiment, liquid level sensors 142A and 142B are respectively provided at the upper and lower parts of the liquid level detection channel 141. When the liquid level of the solvent is lower than a preset first threshold, the liquid level sensor 142B emits a voice or light message to remind the user to add solvent. When the liquid level of the solvent is higher than a preset second threshold, the liquid level sensor 142A emits a voice or light message to inform the user that sufficient solvent has been added.

[0060] In addition, if the inner diameter of the liquid level detection channel 141 is too small, bubbles are easily generated when the solvent flows through the liquid level detection channel 141, thereby affecting the detection accuracy or causing erroneous detection. In this regard, in the present embodiment, the inner diameter of the liquid level detection channel 141 is set to be greater than 10 mm, thereby avoiding the generation of bubbles and detecting the liquid level of the solvent with high accuracy.

[0061] (Peristaltic Pump)

[0062] The peristaltic pump 2 includes a stepper motor, an impeller, and an infusion hose. A liquid inlet is provided at one end of the infusion hose, and a liquid outlet is provided at the other end. The liquid inlet is connected to the solvent tank 1, and the liquid outlet is connected to the immersion box 4. When the stepper motor is working, the impeller is driven to rotate and squeeze the infusion hose provided around the impeller from the liquid inlet side toward the liquid outlet side, thereby supplying the solvent in the infusion hose to the immersion box 4 through the liquid outlet, and at the same time, the negative pressure generated by the discharge of the solvent in the liquid hose is used to suck the solvent from the solvent tank 1 through the liquid inlet.

[0063] When a stepper motor is used, a large acceleration / deceleration stepper motor is preferably used to ensure the amount of liquid supplied. In this embodiment, the acceleration / deceleration time of the stepper motor is set to be more than 500 ms, thereby ensuring the amount of liquid supplied and achieving precise control.

[0064] (Peristaltic Pump Controller)

[0065] The peristaltic pump controller 3 controls the operation of the peristaltic pump 2. In this embodiment, the peristaltic pump controller 3 outputs a pulse signal to the peristaltic pump, thereby controlling the start and stop of the peristaltic pump 2. As described above, by using the pulse signal to control the working time of the peristaltic pump 2, the liquid supply of the peristaltic pump 2 can be accurately controlled.

[0066] In this embodiment, the peristaltic pump is configured such that the amount of solvent sprayed from the plurality of spray ports 43 based on one pulse signal is at least 10 times the volume of the cavity 42 of the wetting box 4. Thus, it is possible to ensure that the solvent is sprayed onto the non-woven fabric in a spraying manner, thereby ensuring a good wetting effect of the non-woven fabric.

[0067] (Waste box)

[0068] like Figure 1As shown, the waste liquid box 5 includes a first waste liquid box 51 disposed just below the infiltration box 4 , and a second waste liquid box 52 disposed just below the frame 62 .

[0069] Most of the solvent sprayed from the spray port 43 of the immersion box 4 is absorbed by the non-woven fabric, but a part of it is not absorbed by the non-woven fabric and flows downward from the immersion box 4. By arranging the first waste liquid box 51 directly below the immersion box 4, the excess solvent flowing down from the immersion box 4 can be collected and recovered, thereby preventing the solvent flowing down from the immersion box 4 from adhering to other components and causing pollution to other surrounding mechanisms and air.

[0070] In addition, a small amount of solvent sprayed from the liquid spray port 43 of the immersion box 4 does not adhere to the non-woven fabric but splashes around. The solvent falls to the frame 62 under the action of gravity. Since a second waste liquid box 52 is provided directly below the frame 62, the solvent flowing down from the frame 62 can be collected and recovered, thereby preventing the solvent flowing down from the frame 62 from adhering to other components and causing pollution to other surrounding mechanisms and air.

[0071] [Modifications]

[0072] In the above embodiment, the number of the liquid ejection ports 43 is set to five, but the number of the liquid ejection ports is not limited thereto and may be set to another number as required.

[0073] In the above embodiment, the shape of the cavity 42 is set to be substantially cylindrical, but it may be set to other shapes such as a rectangular parallelepiped.

[0074] In the above embodiment, in order to achieve accurate control of the liquid supply amount, a stepper motor with an acceleration and deceleration time of more than 500 ms is used. However, as long as the liquid supply amount can be accurately controlled, other drive mechanisms such as servo motors can also be used.

[0075] In the above embodiment, the waste liquid box 5 includes the first waste liquid box 51 provided just below the immersion box 4 and the second waste liquid box 52 provided just below the frame 62. However, only one of the first waste liquid box 51 and the second waste liquid box 52 may be provided.

[0076] As described above, the following matters are disclosed in this specification.

[0077] (1) A wetting box having a wetting block for impregnating a nonwoven fabric with a solvent, characterized in that:

[0078] The infiltration block has:

[0079] an injection port to which the solvent is supplied;

[0080] a cavity connected to the injection port and used to store the solvent supplied from the injection port;

[0081] a plurality of liquid spraying ports formed on the side wall of the impregnation block and connected to the cavity, for spraying the solvent onto the nonwoven fabric; and

[0082] The liquid guide groove is formed on the surface of the impregnation block where the plurality of liquid spraying ports are provided, and is connected to the plurality of liquid spraying ports, and is used for guiding the solvent sprayed from the plurality of liquid spraying ports to the non-woven fabric.

[0083] Since a liquid guide groove is provided on the surface of the impregnation block with multiple liquid spraying ports, the solvent is guided to the non-woven fabric through the liquid guide groove, so that the solvent sprayed from the liquid spraying port has directionality, and the size of the non-woven fabric impregnation area can be accurately controlled to prevent pollution to surrounding structures and air.

[0084] (2) The infiltration box according to (1), characterized in that:

[0085] The diameter of the liquid spraying port is 0.2-0.5 mm.

[0086] (3) The infiltration box according to (2), characterized in that:

[0087] The diameter of the liquid spraying port is 0.3 mm.

[0088] (4) The infiltration box according to any one of (1) to (3), characterized in that:

[0089] The cavity is roughly cylindrical, with a diameter of 0.5 mm and a length of 20 mm.

[0090] By setting the diameter of the liquid spraying port to 0.2-0.5 mm, the diameter of the cavity to 0.5 mm and the length to 20 mm, a structure of a small cavity and multiple micro liquid spraying ports is formed, thereby enabling the wetting area of ​​the nonwoven fabric to be further accurately controlled.

[0091] (5) A nonwoven fabric solvent impregnation device for impregnating a nonwoven fabric with a solvent, characterized by comprising:

[0092] a solvent tank storing the solvent;

[0093] The infiltration box described in any one of (1) to (4);

[0094] A peristaltic pump, which pumps the solvent from the solvent tank to the infiltration box and has a liquid inlet connected to the solvent tank and a liquid outlet connected to the infiltration box; and a peristaltic pump controller, which controls the peristaltic pump.

[0095] Since the peristaltic pump is used to supply the solvent from the solvent tank to the infiltration box, the pumping amount of the solvent can be accurately controlled, thereby improving the utilization rate of the solvent.

[0096] (6) The nonwoven fabric solvent impregnation device according to (5), characterized in that:

[0097] The peristaltic pump includes a stepping motor, an impeller, and an infusion hose. When the stepping motor is working, the impeller is driven to rotate and squeeze the infusion hose, thereby pumping the solvent in the infusion hose.

[0098] The acceleration and deceleration time of the stepping motor is more than 500ms.

[0099] Since a stepper motor is used to drive the peristaltic pump and the acceleration and deceleration time of the stepper motor is set to more than 500ms, the liquid supply amount can be further accurately controlled, and the solvent utilization rate can be as high as more than 90%.

[0100] (7) The nonwoven fabric solvent impregnation device according to (5), characterized in that:

[0101] The peristaltic pump controller controls the peristaltic pump by outputting a pulse signal to the peristaltic pump.

[0102] The amount of the solvent ejected from the plurality of ejection ports based on one pulse signal is at least 10 times the volume of the cavity of the infiltration box.

[0103] By making the liquid spraying amount of the peristaltic pump at one time more than 10 times the volume of the cavity of the infiltration box, it is possible to ensure that the solvent is sprayed onto the non-woven fabric in a jetting manner, thereby ensuring a good infiltration effect of the non-woven fabric.

[0104] (8) The nonwoven fabric solvent impregnation device according to (5), characterized in that:

[0105] The solvent tank includes a tank body storing the solvent and a liquid level detection mechanism detecting a liquid level of the solvent in the tank body.

[0106] The liquid level detection mechanism includes a liquid level detection channel connected to the tank body and a liquid level sensor formed in the liquid level detection channel.

[0107] The solvent tank is also provided with a liquid level detection mechanism for detecting the liquid level of the solvent in the tank body, so as to inform the user of the remaining liquid amount in the solvent tank and issue a warning to the user when the liquid amount is low, so as to remind the user to replenish the solvent in time.

[0108] (9) The nonwoven fabric solvent impregnation device according to (8), characterized in that:

[0109] The inner diameter of the liquid level detection channel is greater than 10 mm.

[0110] If the inner diameter of the liquid level detection channel is too small, bubbles are easily generated when the solvent flows through the liquid level detection channel, thereby affecting the detection accuracy or causing false detection. In the present disclosure, by setting the inner diameter of the liquid level detection channel to be greater than 10 mm, the generation of bubbles can be avoided, thereby detecting the liquid level of the solvent with high accuracy.

[0111] (10) The nonwoven fabric solvent impregnation device according to any one of (5) to (9), characterized in that:

[0112] The nonwoven fabric solvent impregnation device further comprises a waste liquid box, which is arranged directly below the impregnation box and is used to collect waste liquid of the solvent generated during the impregnation process of impregnating the nonwoven fabric.

[0113] By arranging a waste liquid box for collecting waste liquid generated during the infiltration process directly below the infiltration box, it is possible to prevent the waste liquid from adhering to surrounding mechanisms and avoid contaminating the surrounding mechanisms and the air.

[0114] The above is a description of the preferred embodiments shown in the present disclosure, but the present disclosure is not limited to the above embodiments, and various changes can certainly be implemented within the scope of the present disclosure. In particular, without departing from the spirit and teachings of the present disclosure, the features described in the various embodiments and / or technical solutions of the present disclosure can be combined and / or combined in various ways. All these combinations and / or combinations fall within the scope of the present disclosure.

[0115] Industrial Applicability

[0116] The infiltration box and non-woven fabric solvent infiltration device disclosed in the present invention can realize accurate control of liquid volume and infiltration position, and can recycle waste liquid to avoid pollution to surrounding mechanisms and air. Therefore, the infiltration box and non-woven fabric solvent infiltration device disclosed in the present invention can be applied to laser cleaning in lithium battery manufacturing.

Claims

1. A wetting box having a wetting block for impregnating a nonwoven fabric with a solvent, characterized in that: The infiltration block has: an injection port to which the solvent is supplied; a cavity connected to the injection port and used to store the solvent supplied from the injection port; a plurality of liquid spraying ports formed on the side wall of the impregnation block and connected to the cavity, for spraying the solvent onto the nonwoven fabric; as well as The liquid guide groove is formed on the surface of the impregnation block where the plurality of liquid spraying ports are provided, and is connected to the plurality of liquid spraying ports, and is used for guiding the solvent sprayed from the plurality of liquid spraying ports to the non-woven fabric.

2. The infiltration box according to claim 1, characterized in that: The diameter of the liquid spraying port is 0.2-0.5 mm.

3. The infiltration box according to claim 2, characterized in that: The diameter of the liquid spraying port is 0.3 mm.

4. The infiltration box according to any one of claims 1 to 3, characterized in that The cavity is roughly cylindrical, with a diameter of 0.5 mm and a length of 20 mm.

5. A non-woven fabric solvent impregnation device, used to impregnate a non-woven fabric with a solvent, characterized in that: have: a solvent tank storing the solvent; The infiltration box according to any one of claims 1 to 4; a peristaltic pump, which pumps the solvent from the solvent tank to the infiltration box and has a liquid inlet connected to the solvent tank and a liquid outlet connected to the infiltration box; and A peristaltic pump controller controls the peristaltic pump.

6. The nonwoven fabric solvent impregnation device according to claim 5, characterized in that: The peristaltic pump includes a stepping motor, an impeller, and an infusion hose. When the stepping motor is working, the impeller is driven to rotate and squeeze the infusion hose, thereby pumping the solvent in the infusion hose. The acceleration and deceleration time of the stepping motor is more than 500ms.

7. The nonwoven fabric solvent impregnation device according to claim 5, characterized in that: The peristaltic pump controller controls the peristaltic pump by outputting a pulse signal to the peristaltic pump. The amount of the solvent ejected from the plurality of ejection ports based on one pulse signal is at least 10 times the volume of the cavity of the infiltration box.

8. The nonwoven fabric solvent impregnation device according to claim 5, characterized in that: The solvent tank includes a tank body storing the solvent and a liquid level detection mechanism detecting a liquid level of the solvent in the tank body. The liquid level detection mechanism includes a liquid level detection channel connected to the tank body and a liquid level sensor formed in the liquid level detection channel.

9. The nonwoven fabric solvent impregnation device according to claim 8, characterized in that: The inner diameter of the liquid level detection channel is greater than 10 mm.

10. The nonwoven fabric solvent impregnation device according to any one of claims 5 to 9, characterized in that: The nonwoven fabric solvent impregnation device further comprises a waste liquid box, which is arranged directly below the impregnation box and is used to collect waste liquid of the solvent generated during the impregnation process of impregnating the nonwoven fabric.

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