Injector cleaning tool

Abstract

This utility model discloses a cleaning fixture for injection nozzles, comprising: a housing with an opening and a connection port; a nozzle disposed within the housing, with its inlet and connection port connected; a storage tank with its outlet connected to the connection port; a pump connected in series between the storage tank and the connection port; a gas tank with its outlet connected to the connection port; a pressure regulating valve connected in series between the gas tank and the connection port; and a plug-in / pull-out device, which is positioned opposite the opening of the housing. The plug-in / pull-out device has a fixture for fixing the injection nozzle, and can drive the fixture to move toward the opening of the housing. Through this technical solution, the injection nozzle to be cleaned is fixed on the fixture, and the injection nozzle is inserted into the housing through the opening using the plug-in / pull-out device. The pump and pressure regulating valve then operate to remove dirt from the injection nozzle and dry it. This application can spray a high-pressure gas-liquid mixture onto the injection nozzle, improving its cleaning ability.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production and processing technology, specifically to a cleaning fixture for a liquid injection nozzle. Background Technology

[0002] In the production process of lithium batteries, the electrolyte injection process is an extremely critical step. As the component that injects electrolyte into the lithium battery cell, the cleanliness of the injection nozzle directly affects the electrolyte injection effect and the performance and quality of the lithium battery.

[0003] Common methods for cleaning the electrolyte filling nozzles of lithium battery devices have several problems. For example, manual cleaning is inefficient and the cleaning effect is difficult to guarantee. Manual operation is prone to missing tiny gaps inside the filling nozzle, resulting in electrolyte residue. Automated cleaning equipment often uses simple spraying or immersion methods. Spray cleaning may fail to completely remove stubborn electrolyte crystals inside the filling nozzle due to insufficient pressure or angle issues; immersion cleaning is time-consuming and costly. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this utility model provides a nozzle cleaning fixture that can spray a high-pressure gas-liquid mixture onto the nozzle, resulting in higher cleaning capabilities.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a nozzle cleaning fixture, comprising: The box body has an opening and a connection port; The nozzle is disposed inside the housing, and the liquid inlet of the nozzle is connected to the connection port; A liquid storage tank, wherein the outlet of the liquid storage tank is connected to the connection port; A pump, which is connected in series between the storage tank and the connection port; A gas cylinder, wherein the outlet of the gas cylinder is connected to the connection port; The insertion and removal device is arranged opposite to the opening of the box body. The insertion and removal device is equipped with a fixture that can fix the injection nozzle. The insertion and removal device can drive the fixture to move toward the opening of the box body.

[0006] The above technical solution involves fixing the nozzle to be cleaned onto a fixture, inserting the nozzle into the housing through the opening using the insertion / removal device, and then activating the pump and air tank to remove dirt from the nozzle and dry it. This application can spray a high-pressure gas-liquid mixture onto the nozzle, improving cleaning ability, and the air tank can operate independently to dry the nozzle.

[0007] Furthermore, the nozzle includes: A hollow annular body, wherein the inner ring of the annular body is provided with spaced liquid outlets; The connector is connected to the inner cavity of the annular body, and the connector serves as the liquid inlet of the nozzle and is connected to the connection port.

[0008] The ring-shaped nozzle design allows the liquid outlet to cover the injection nozzle, ensuring thorough cleaning.

[0009] Furthermore, the openings of the annular body and the box body are coaxially arranged, and the liquid outlets are arranged at intervals along the circumference of the annular body.

[0010] The openings of the annular body and the box body are arranged coaxially so that the injection nozzle can be located at the center of the annular body when it enters the box body, so that the distances of each liquid outlet relative to the injection nozzle are similar, thus ensuring that the cleaning force of each liquid outlet is similar.

[0011] Furthermore, a pressure regulating valve is connected in series between the gas tank and the connection port. The pressure regulating valve is used to adjust the gas pressure to meet different cleaning requirements.

[0012] Furthermore, a sealing ring is fitted onto the fixture, and the insertion / removal device can drive the fixture, carrying the injection nozzle, into the box through the opening. At this time, the sealing ring and the opening abut against each other. The sealing ring seals the box, preventing cleaning fluid from splashing during cleaning.

[0013] Furthermore, the insertion / removal device includes: A fixing plate, which is fixed in a preset position, is provided with guide holes; Guide rod, the guide rod being inserted into the guide hole; A connecting plate is connected to the guide rod, and the connecting plate is provided with the fixture; A driving device is mounted on the fixed plate, and the driving end of the driving device is connected to the connecting plate.

[0014] Furthermore, a three-way valve is connected to the connection port, and the outlet of the liquid storage tank and the outlet of the gas tank are respectively connected to the three-way valve.

[0015] Furthermore, the bottom surface of the box is inclined, and a drain outlet is provided at the lowest point of the bottom surface of the box, which is connected to a collection tank. The cleaning fluid falling into the box can flow into the collection tank along the inclined bottom surface.

[0016] Furthermore, the collection tank is equipped with a filtration device. The filtration device is used to separate large particles to obtain waste liquid that can be recycled and reused.

[0017] Furthermore, the gas cylinder contains dried air or nitrogen.

[0018] Based on the above technical solution, the beneficial effects of this utility model are as follows: The nozzle cleaning fixture disclosed in this application is equipped with a pump and an air tank. The pump and the air tank can operate simultaneously to spray a high-pressure gas-liquid mixture onto the nozzle. Compared with a single liquid pump spraying, the nozzle cleaning fixture disclosed in this application has a stronger cleaning ability. In this application, the gas cylinder can work independently and function as a dryer for the liquid injection nozzle.

[0019] 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

[0020] 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.

[0021] Figure 1 This is a schematic diagram of the overall device structure of the nozzle cleaning fixture in this embodiment of the utility model; Figure 2 This is a schematic diagram of the structure of the box and the nozzle in an embodiment of this utility model; Figure 3 This is a schematic diagram of the box body in an embodiment of this utility model; Figure 4 This is a schematic diagram of the nozzle structure in an embodiment of this utility model.

[0022] The reference numerals in the above figures are as follows: 1. Box body; 11. Opening; 12. Connection port; 2. Nozzle; 21. Ring body; 22. Liquid outlet; 23. Connector; 3. Three-way valve; 34. Pump; 35. Pressure regulating valve; 4. Liquid storage tank; 5. Gas tank; 61. Fixture; 62. Fixing plate; 621. Connection hole; 63. Guide rod; 64. Cylinder; 7. Injection nozzle. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] Example: This example discloses a nozzle cleaning fixture, comprising: The box body 1 has an opening 11 and a connection port 12. Both the opening 11 and the connection port 12 lead to the inner cavity of the box body 1. A nozzle 2 is installed inside the box body 1, such as... Figure 2 As shown, the nozzle 2 is located at the opening 11, and the liquid inlet of the nozzle 2 and the connection port 12 of the box body 1 are connected inside the box body 1.

[0026] In some feasible embodiments, the box 1 is rectangular, such as... Figure 3 As shown, a plurality of openings 11 are provided on the top of the rectangular box 1, and the openings 11 are arranged at equal intervals along the length of the rectangular box 1. The side of the rectangular box 1 is provided with the connection port 12, and each opening 11 corresponds to one connection port 12.

[0027] In some feasible embodiments, the nozzle 2 includes a hollow annular body 21, such as Figure 4 As shown, the inner ring of the annular body 21 has a plurality of equally spaced liquid outlets 22. The outer ring of the annular body 21 is connected to a connector 23, which communicates with the inner cavity of the annular body 21 and serves as the liquid inlet of the nozzle 2 and communicates with the connection port 12.

[0028] The openings of the annular body 21 and the box body 1 are coaxially arranged.

[0029] The connection port 12 is located on the outside of the housing 1 and is connected to a three-way valve 3. One port of the three-way valve 3 is connected to the outlet of the storage tank 4, which contains cleaning fluid with strong solubility and low corrosivity. A pump 34 is connected in series between the three-way valve 3 and the storage tank 4. The pump 34 can draw out the cleaning fluid from the storage tank 4, transport it through a pipeline to the nozzle 2, and spray it out from the outlet 22 of the nozzle 2.

[0030] In some feasible embodiments, the cleaning solution comprises a dimethyl carbonate solution.

[0031] The other port of the three-way valve 3 is connected to the outlet of the gas tank 5, which contains dried air or nitrogen.

[0032] In some feasible embodiments, the gas tank 5 is a high-pressure gas tank. A pressure regulating valve 35 is connected in series between the gas tank 5 and the three-way valve 3. The gas pressure can be adjusted by the pressure regulating valve 35 to meet different cleaning needs.

[0033] The nozzle cleaning fixture also includes a plugging and unplugging device, which is arranged opposite to the opening 11 of the housing 1. The plugging and unplugging device is provided with a fixture 61 that can fix the nozzle, and the plugging and unplugging device can drive the fixture 61 to move toward the opening 11 of the housing 1.

[0034] In some feasible embodiments, such as Figure 1 As shown, the insertion / removal device is positioned above the housing 1. The device includes a fixing plate 62 with multiple connection holes 621. Bolts passing through these holes can fix the fixing plate in a preset position. The fixing plate 62 also has guide holes into which a guide rod 63 is inserted. The lower end of the guide rod 63 is connected to the fixture 61. The fixture 61 is further connected to a cylinder 64. The cylinder body of the cylinder 64 is fixed to the fixing plate 62, and the drive rod of the cylinder 64 is connected and fixed to the fixture 61.

[0035] It should be noted that in actual use, each three-way valve 3 needs to be connected to each liquid storage tank 4 and gas tank 5 through pipelines, and a pump 34 is connected in series on the connecting pipeline between the three-way valve 3 and the liquid storage tank 4, and a pressure regulating valve 35 is connected in series on the connecting pipeline between the three-way valve 3 and the gas tank 5.

[0036] Driven by the cylinder 64, the fixture 61 can move toward the opening 11 of the box 1.

[0037] Optionally, the cylinder 64 can be replaced by any driving device such as an electric cylinder or a motor.

[0038] In some feasible embodiments, a sealing ring is fitted onto the fixture 61, and the insertion / removal device can drive the fixture 61, carrying the injection nozzle 7, into the housing 1 through the opening 11. At this time, the sealing ring abuts against the opening 11. Sealing the housing 1 with the sealing ring can prevent cleaning fluid from splashing during cleaning.

[0039] In some feasible embodiments, the sealing ring may be fitted around the periphery of the injection nozzle 7.

[0040] In some feasible embodiments, the bottom surface of the box 1 is inclined, and a drain outlet is provided at the lowest point of the bottom surface of the box 1, which is connected to a collection tank. Cleaning fluid falling into the box 1 can flow into the collection tank along the inclined bottom surface. The collection tank is equipped with a filtration device. The filtration device is used to separate large particles to obtain recyclable waste liquid.

[0041] The steps for using the above-mentioned nozzle cleaning fixture are as follows: The injection nozzle 7 to be cleaned is fixed on the fixture 61. The cylinder 64 is activated, inserting the injection nozzle 7 into the box 1 through the opening 11 until the sealing ring on the fixture 61 abuts against the opening 11 of the box 1. Since the annular body 21 and the opening 11 of the box 1 are coaxially arranged, the injection nozzle 7 is located at the center of the annular body 21, and the box 1 is sealed by the sealing ring.

[0042] Start pump 34, which draws cleaning fluid from storage tank 4 to nozzle 2 and sprays it onto injection nozzle 7, initially rinsing away visible stains and dust on injection nozzle 7.

[0043] Simultaneously, pump 34 and gas tank 5 are activated, and high-pressure gas-liquid mixture is sprayed from nozzle 2 to injection nozzle 7, which can dissolve residual stains and blow them out from injection nozzle 7.

[0044] Turn off pump 34, start gas tank 5, and spray high-pressure gas into injection nozzle 7 to blow out residual cleaning fluid and fine stains, and to make injection nozzle 7 dry quickly.

[0045] After the cleaning process is completed, the waste liquid flows into the collection tank through the drain port of box 1.

[0046] 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 nozzle cleaning fixture, characterized in that, include: The box body has an opening and a connection port; A nozzle is disposed within the housing and has a liquid inlet connected to the connection port. A liquid storage tank having an outlet, the outlet of the liquid storage tank being connected to the connection port; A pump, which is connected in series between the storage tank and the connection port; A gas cylinder having an outlet, the outlet of which is connected to the connection port.

2. The nozzle cleaning fixture as described in claim 1, characterized in that, It also includes a plug-in device, which is arranged opposite to the opening of the box body. The plug-in device is provided with a fixture that can fix the injection nozzle, and the plug-in device can drive the fixture to move toward the opening of the box body.

3. The nozzle cleaning fixture as described in claim 2, characterized in that, The nozzle includes: A hollow annular body, wherein the inner ring of the annular body is provided with spaced liquid outlets; The connector is connected to the inner cavity of the annular body, and the connector serves as the liquid inlet of the nozzle and is connected to the connection port.

4. The nozzle cleaning fixture as described in claim 3, characterized in that, The openings of the annular body and the box body are coaxially arranged, and the liquid outlets are arranged at intervals along the circumference of the annular body.

5. The nozzle cleaning fixture as described in claim 1, characterized in that, A pressure regulating valve is connected in series between the gas tank and the connection port.

6. The nozzle cleaning fixture as described in claim 2, characterized in that, The fixture is fitted with a sealing ring, and the insertion and removal device can drive the fixture with the injection nozzle to enter the box body through the opening. At this time, the sealing ring and the opening abut against each other.

7. The nozzle cleaning fixture as described in claim 2, characterized in that, The insertion / removal device includes: A fixing plate, which is fixed in a preset position, is provided with guide holes; Guide rod, the guide rod being inserted into the guide hole; A connecting plate is connected to the guide rod, and the connecting plate is provided with the fixture; A driving device is mounted on the fixed plate, and the driving end of the driving device is connected to the connecting plate.

8. The nozzle cleaning fixture as described in claim 2, characterized in that, The connection port is connected to a three-way valve, and the outlet of the liquid storage tank and the outlet of the gas tank are respectively connected to the three-way valve.

9. The nozzle cleaning fixture as described in claim 2, characterized in that, The bottom surface of the box is inclined, and a drain outlet is provided at the lowest point of the bottom surface of the box. The drain outlet is connected to a collection tank.

10. The nozzle cleaning fixture as described in claim 9, characterized in that, The collection tank is equipped with a filtration device.

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