Online coating liquid supply device

Abstract

The utility model relates to an online coating liquid supply device. Comprising a coating liquid supply system, a transfer defoaming liquid storage system and a liquid return system which jointly bear the stable and high-quality transfer function of coating liquid. In the structure, a floating ball device is replaced by the magnetic liquid level sensor, so that a floating ball is prevented from being in contact with high-viscosity coating liquid for a long time to form sticking and blocking, and sensing failure is avoided; the transfer defoaming liquid storage system is provided with an ultrasonic defoaming rod for noise elimination, so that a large number of bubbles are prevented from being generated when the coating liquid passes through the transfer system in the conveying process, and the phenomenon of coating missing is avoided; and the coating liquid supply system and the transfer defoaming liquid storage system are each internally provided with a filtering structure, impurities existing in the coating liquid can be fully filtered out, and the situation that the coating equipment is blocked, and consequently the equipment runs abnormally is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of online coating, especially relates to a liquid supply device for online coating. BACKGROUND

[0002] Online coating technology is directly performed on the production line, closely connected with other production links of the product. This technology can realize efficient assembly line operation, reduce the downtime and conversion time in the production process. Offline coating is to take the product off the production line, coat in a separate coating device or area, and then return to the production line after completion. This method is relatively independent, but it will increase the logistics and time cost.

[0003] Online coating can realize continuous and efficient production due to its close combination with the production line. The product does not need additional handling and waiting in the coating link, thereby greatly improving the production efficiency. In contrast, offline coating needs additional loading and transportation steps, which will consume time and reduce the overall production efficiency.

[0004] Online coating technology usually requires more advanced equipment and higher technical requirements, so the initial investment may be relatively high. However, due to its efficient production method and reduced logistics cost, it may be more economically beneficial in the long run. Offline coating may have lower investment in equipment and technology, but due to its lower production efficiency and additional logistics cost, the overall cost may increase.

[0005] The sensor in the existing online coating liquid supply device adopts a float ball type sensor. Since the coating liquid has a certain viscosity, the sensor will malfunction after a long time of use. The coating liquid will generate a large amount of bubbles during transmission, resulting in coating leakage. Impurities in the coating liquid will clog the coating equipment, causing abnormal operation of the equipment. INNOVATION

[0006] The technical problem to be solved by the utility model is to provide a liquid supply device for online coating.

[0007] To solve the above technical problems, the technical scheme of the utility model is as follows: a liquid supply device for online coating, which is characterized by comprising a coating liquid supply system, a transfer defoaming liquid storage system and a liquid return system, which jointly bear the functions of stable and high-quality transmission of coating liquid.

[0008] The coating liquid supply system comprises a liquid storage tank, a mechanical pump, a first liquid level sensor and a filter stick. The first liquid level sensor is installed on the liquid storage tank. The filter stick is installed at the inlet of the liquid storage tank. The outlet of the liquid storage tank is connected with the mechanical pump.

[0009] The coating liquid supply system is used for transmitting coating liquid in a storage tank, alarming and reminding to supplement coating liquid when the liquid level is too low, and filtering impurities through a filter rod.

[0010] The transfer foam removal and storage system comprises a transfer tank, a second liquid level sensor and an ultrasonic foam removal rod, the second liquid level sensor is installed on the transfer tank, the ultrasonic foam removal rod is installed on the top of the transfer tank, an emergency air outlet and a liquid outlet are respectively arranged on the top and the bottom of the transfer tank, a liquid inlet is arranged in the middle of the transfer tank, and a liquid inlet pipeline extends from the liquid inlet to the inside of the transfer tank, and one end of the liquid inlet pipeline in the inside of the transfer tank is provided with a liquid transmission port.

[0011] Therefore, the coating liquid transmission can be automatically stopped when the liquid level is high, the coating liquid can be automatically supplemented when the liquid level is low, the bubbles in the coating liquid can be removed, the coating leakage can be prevented, and the sensor failure can be prevented to cause the coating liquid leakage.

[0012] The liquid return system is connected with the inlet of the storage tank of the coating liquid supply system.

[0013] Further, the first liquid level sensor and the second liquid level sensor are both magnetic liquid level sensors, the magnetic liquid level sensor is used to replace the float ball device, the contact of the float ball with the high-viscosity coating liquid for a long time is prevented, the sticking blockage is prevented, and the sensor failure is prevented.

[0014] Further, the liquid transmission port is designed as a horn structure, and the coating liquid is prevented from being retained to form impurities.

[0015] Further, the emergency air outlet is externally provided with a containing container, and the bubbles can be discharged when the initial liquid supply is performed.

[0016] Further, the liquid outlet is provided with a filtering device, and the impurities are prevented from entering the coating cavity through secondary filtering.

[0017] Further, the horn structure of the liquid transmission port is made of aluminum alloy, and the plastic material is prevented from being adhered to the high-molecular coating liquid.

[0018] Further, the side surface of the horn-shaped liquid transmission port is in a circular arc structure, and the coating liquid is prevented from being retained at the outlet to form impurities.

[0019] The coating liquid supply system has the advantages that:

[0020] 1. In the structure, the magnetic liquid level sensor is used to replace the float ball device, the contact of the float ball with the high-viscosity coating liquid for a long time is prevented, the sticking blockage is prevented, and the sensor failure is prevented; the ultrasonic foam removal rod is arranged in the transfer foam removal and storage system, a large number of bubbles generated in the coating liquid during the transmission process are avoided, and the coating leakage phenomenon is avoided; and the filtering structure is arranged in the coating liquid supply system and the transfer foam removal and storage system, the impurities existing in the coating liquid can be fully filtered, and the coating equipment is prevented from being abnormally operated due to the blockage of the coating equipment.

[0021] 2. The liquid transfer port is designed with a funnel-shaped structure to prevent the coating liquid from stagnating and forming foreign matter.

[0022] 3. An outer container is provided at the emergency vent to facilitate the removal of air bubbles during the initial liquid supply.

[0023] 4. The flared structure of the liquid transfer port is made of aluminum alloy, which can prevent the plastic material from sticking to the polymer coating liquid.

[0024] 5. The sides of the funnel-shaped liquid transfer port have an arc-shaped structure to prevent the coating liquid from remaining at the outlet and forming impurities. Attached Figure Description

[0025] Figure 1 This is a partial structural cross-sectional view of the present invention. Detailed Implementation

[0026] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0027] like Figure 1 The online coating liquid supply device shown includes a coating liquid supply system, a transfer defoaming liquid storage system and a return liquid system, which together carry out the function of stable and high-quality delivery of coating liquid.

[0028] The coating liquid supply system includes a liquid storage tank, a mechanical pump, a first liquid level sensor, and a filter rod. The first liquid level sensor is installed on the liquid storage tank, a filter rod is installed at the inlet of the liquid storage tank, and the outlet of the liquid storage tank is connected to the mechanical pump.

[0029] The first liquid level sensor uses a magnetic liquid level sensor, which replaces the float device to prevent the float from sticking and becoming clogged due to prolonged contact with the high-viscosity coating liquid, thus preventing sensor failure.

[0030] The coating liquid supply system is used to transfer the coating liquid into the storage tank. An alarm is triggered when the liquid level is too low to remind the user to replenish the coating liquid. Impurities are filtered out using a filter rod.

[0031] The transfer defoaming storage system includes a transfer tank 1, a second liquid level sensor 2, and an ultrasonic defoaming rod 3. The second liquid level sensor 2 is installed on the transfer tank 1, and the ultrasonic defoaming rod 3 is installed on the top of the transfer tank 1. The top and bottom of the transfer tank 1 are respectively provided with an emergency vent 4 and a liquid outlet 5. A liquid inlet 6 is provided in the middle of the transfer tank 1, and a liquid inlet pipe 7 extends from the liquid inlet 6 close to the interior of the transfer tank 1. The end of the liquid inlet pipe 7 located inside the transfer tank 1 has a liquid transfer port 8.

[0032] Then the coating liquid can be automatically stopped at high liquid level and automatically supplemented at low liquid level. The bubbles in the coating liquid are eliminated to prevent leakage. The sensor failure is prevented to cause the coating liquid leakage.

[0033] The liquid conveying port 8 is designed as a horn structure to prevent the coating liquid from remaining and forming foreign matter.

[0034] The second liquid level sensor 2 adopts a magnetic liquid level sensor to replace the float ball device to prevent the float ball from contacting the high-viscosity coating liquid for too long to form a sticky blockage and cause sensor failure.

[0035] An emergency exhaust pipe is installed at the emergency exhaust port 4, and a containing container 10 is arranged at the outlet of the emergency exhaust pipe to facilitate the discharge of bubbles during initial liquid supply.

[0036] The liquid outlet 5 is provided with a filter 9 for secondary filtration to prevent impurities from entering the coating cavity.

[0037] The horn structure of the liquid conveying port 8 is made of aluminum alloy material to prevent the plastic material from adhering to the high-molecular coating liquid.

[0038] The side surface of the horn-shaped liquid conveying port 8 is in a circular arc structure to prevent the coating liquid from remaining at the outlet and forming impurities.

[0039] The liquid return system includes a liquid return tank body, and the outlet of the liquid return tank body is connected with the inlet of the liquid storage tank body of the coating liquid supply system.

[0040] In the structure, the magnetic liquid level sensor replaces the float ball device to prevent the float ball from contacting the high-viscosity coating liquid for too long to form a sticky blockage and cause sensor failure. The transfer bubble elimination liquid storage system has an ultrasonic bubble elimination rod 3 to eliminate noise and avoid the generation of a large number of bubbles in the coating liquid during the conveying process to avoid the occurrence of coating leakage. The coating liquid supply system and the transfer bubble elimination liquid storage system are both provided with a filtering structure to fully filter the impurities in the coating liquid and avoid the blocking of the coating equipment to cause abnormal operation of the equipment.

[0041] The working principle of the patent is as follows:

[0042] The coating liquid in the liquid storage tank body is pumped into the transfer tank body 1 by a mechanical pump. In this process, the coating liquid is filtered by a filter rod for the first time. The coating liquid after the first filtration falls into the transfer tank body 1 through the liquid inlet pipeline 7 and the liquid conveying port 8. The coating liquid is sent out for coating by the liquid outlet 5 after being defoamed by the ultrasonic bubble elimination rod 3. The coating liquid is filtered by the filter 9 for the second time after being discharged from the liquid outlet 5 to ensure the coating quality. The excess coating liquid is collected by the liquid return system and then sent into the coating liquid supply system through the inlet of the liquid storage tank body.

[0043] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the disclosed technical content, or make equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, equivalent change or modification of the above embodiments, which does not depart from the technical solution of the present application, is still within the scope of the technical solution of the present application.

Claims

1. An on-line coating liquid supply device characterized by comprising: The coating liquid supply system, the transfer defoaming liquid storage system and the liquid return system are included. The coating liquid supply system includes a liquid storage tank, a mechanical pump, a first liquid level sensor and a filter rod, the first liquid level sensor is installed on the liquid storage tank, the filter rod is installed at the inlet of the liquid storage tank, and the outlet of the liquid storage tank is connected with the mechanical pump. The transfer defoaming liquid storage system includes a transfer tank, a second liquid level sensor and an ultrasonic defoaming rod, the second liquid level sensor is installed on the transfer tank, the ultrasonic defoaming rod is installed at the top of the transfer tank, the top and the bottom of the transfer tank are respectively provided with an emergency exhaust port and a liquid outlet, the middle of the transfer tank is provided with a liquid inlet, and a liquid inlet pipeline extends from the liquid inlet to the inside of the transfer tank, and the end of the liquid inlet pipeline in the inside of the transfer tank is provided with a liquid transmission port. The liquid return system is connected with the coating liquid supply system.

2. The on-line coating liquid supply apparatus according to claim 1, wherein: The first liquid level sensor and the second liquid level sensor are both magnetic liquid level sensors.

3. The on-line coating liquid supply apparatus according to claim 1, wherein: The liquid transmission port is designed as a horn structure.

4. The on-line coating liquid supply apparatus according to claim 1, wherein: The emergency exhaust port is externally provided with a containing container.

5. The on-line coating liquid supply apparatus according to claim 1, wherein: The liquid outlet is provided with a filter.

6. The on-line coating liquid supply apparatus according to claim 3, wherein: The horn structure of the liquid transmission port is made of aluminum alloy.

7. The on-line coating liquid supply apparatus according to claim 3, wherein: The side surface of the horn-shaped liquid transmission port is a circular arc structure.

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