PVF coating device

Abstract

The PVF coating device comprises a material storage system and a spraying system, the material storage system comprises a material storage bin, a heat exchanger, a cold water pump, a hot water pump, a temperature sensor and a first pump, the heat exchanger is located on one side of the material storage bin, and the heat exchanger is communicated with the cold water pump and the hot water pump. The temperature sensor is installed on the side wall of the storage bin and electrically connected with the cold water pump and the hot water pump, and the first pump communicates with the storage bin and is used for conveying coating to the heat exchanger; the heat exchanger, the cold water pump and the hot water pump are arranged to form a temperature control structure of the coating in the storage bin, and then the temperature sensor is electrically connected with the cold water pump and the hot water pump, so that the heat exchanger can autonomously determine whether hot water or cold water enters according to the temperature of the coating in the storage bin; and therefore, automatic constant temperature of the coating is realized, and the coating quality is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile accessory electroplating product manufacturing, and particularly relates to a PVF coating device. BACKGROUND

[0002] In the processing of automobile brake pipes, the original steel pipe surface needs to be galvanized and then coated with PVF paint. For example, the invention patent with the application publication number CN117732645A and the name PVF spraying production line includes a feeding seat and a discharging seat. The feeding seat is arranged on the left side of the discharging seat. The upper side of the discharging seat is provided with a flaw detection mechanism and a straightener two from left to right. The upper side of the straightener two is movably provided with a straightening straight wheel. The flaw detection mechanism is used for flaw detection and detection of metal pipes. The straightening straight wheel above the straightener two is used for straightening the metal pipe.

[0003] However, the PVF paint in the above device cannot maintain a constant temperature, resulting in poor coating quality. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the above technical defects, and provides a PVF coating device to solve the technical problem that the PVF paint in the prior art cannot maintain a constant temperature, resulting in poor coating quality.

[0005] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a PVF coating device, which comprises:

[0007] A storage system, which comprises a storage bin, a heat exchanger, a cold water pump, a hot water pump, a temperature sensor and a first pump. The heat exchanger is located on one side of the storage bin. The heat exchanger is in communication with the cold water pump and the hot water pump respectively. The temperature sensor is installed on the side wall of the storage bin and is electrically connected with the cold water pump and the hot water pump. The first pump is in communication with the storage bin and is used to convey the paint to the heat exchanger; and

[0008] A spraying system connected with the storage bin.

[0009] In some embodiments, the spraying system comprises a spraying bin, a spraying pipe, an air doctor and a second pump. The spraying pipe is installed in the spraying bin. The air doctor is installed on one side of the spraying bin. The second pump is in communication with the storage bin. The second pump is used to convey the paint to the spraying pipe.

[0010] In some embodiments, the spraying system further comprises a gas tank, a pressure regulator and a pressure gauge. The gas tank is in communication with the air doctor. The pressure regulator and the pressure gauge are installed on the side wall of the gas tank respectively.

[0011] In some embodiments, a guide roller is mounted on one side of the spraying bin, and the guide roller is arranged opposite to the air doctor.

[0012] In some embodiments, the air doctor adopts a bidirectional air inlet mode.

[0013] In some embodiments, the air doctor adopts a multi-hole air outlet mode.

[0014] In some embodiments, a discharge port is formed in the bottom of the spraying bin.

[0015] In some embodiments, a liquid level meter is mounted on the side plate of the storage bin.

[0016] In some embodiments, the bottom of the storage bin is arranged in an inclined manner.

[0017] In some embodiments, a rack is mounted at the bottom of the storage system and the spraying system.

[0018] Compared with the prior art, the coating PVF device provided by the present application comprises a temperature control structure of the coating in the storage bin through the arrangement of the heat exchanger, the cold water pump and the hot water pump, and the temperature sensor is electrically connected with the cold water pump and the hot water pump, respectively, so that the heat exchanger can autonomously determine whether to input hot water or cold water according to the temperature of the coating in the storage bin, thereby realizing automatic constant temperature of the coating and effectively improving the coating quality. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a front view of the coating PVF device provided by the embodiment of the present application;

[0020] Figure 2 is a top view of the coating PVF device provided by the embodiment of the present application;

[0021] Figure 3 is a side view of the coating PVF device provided by the embodiment of the present application.

[0022] Marked with 1, the storage system; 11, the storage bin; 12, the heat exchanger; 13, the cold water pump; 14, the hot water pump; 15, the temperature sensor; 16, the first pump; 17, the liquid level meter; 2, the spraying system; 21, the spraying bin; 211, the discharge port; 22, the spray pipe; 23, the air doctor; 24, the second pump; 25, the gas tank; 26, the pressure regulator; 27, the pressure gauge; 28, the guide roller; 3, the rack. DETAILED DESCRIPTION

[0023] In order to make the utility model purposes, technical solutions and advantages more clearly, the following will be further described in detail with the drawings and examples, and it should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0024] In order to solve the technical problem that PVF coating cannot maintain constant temperature, resulting in poor coating quality, the utility model provides a PVF coating device, which can improve the coating quality of PVF coating.

[0025] It should be noted that the PVF coating device is used for but not limited to automobile brake pipe and the like, in order to facilitate the description, in the utility model, only the PVF coating device applied to the automobile brake pipe is taken as an example for description, and the principle of the PVF coating device applied to other types of equipment is substantially the same as that applied to the automobile brake pipe, which will not be described here.

[0026] Please refer to Figure 1 - Figure 3 , wherein Figure 1 is a structural schematic view of a PVF coating device in an embodiment of the utility model, the PVF coating device comprises a storage system 1 and a spraying system 2, the storage system 1 comprises a storage bin 11, a heat exchanger 12, a cold water pump 13, a hot water pump 14, a temperature sensor 15 and a first pump 16, the heat exchanger 12 is located at one side of the storage bin 11, the heat exchanger 12 is communicated with the cold water pump 13 and the hot water pump 14 respectively, the temperature sensor 15 is installed on the side wall of the storage bin 11 and is electrically connected with the cold water pump 13 and the hot water pump 14, the first pump 16 is communicated with the storage bin 11 and is used to deliver coating to the heat exchanger 12, and the spraying system 2 is connected with the storage bin 11.

[0027] In the embodiment, the heat exchanger 12, the cold water pump 13 and the hot water pump 14 are arranged, so that a temperature control structure of the coating in the storage bin 11 is formed, and the temperature sensor 15 is electrically connected with the cold water pump 13 and the hot water pump 14 respectively, so that the heat exchanger 12 can autonomously decide whether to enter hot water or cold water according to the temperature of the coating in the storage bin 11, and then the automatic constant temperature of the coating is realized, and the coating quality is effectively improved.

[0028] Specifically, the coating in the storage bin 11 is always in a constant temperature state, when the temperature is lower than the working temperature, the hot water pump 14 is started to heat the coating, when the coating works for a period of time, the coating temperature rises due to the influence of the temperature rise of the inductive heating pipe, the hot water pump 14 is closed, and the cold water pump 13 is started.

[0029] Further, the hot water pump 14 is communicated with a hot water tank and a heating valve, and is used to supply hot water for the heat exchanger 12, and the cold water pump 13 is communicated with a cold water tank and a cold water valve, and is used to supply cold water for the heat exchanger 12.

[0030] Further, the heat exchanger 12 is a shell-and-tube exchanger.

[0031] Further, the first pump 16 is a submersible pump.

[0032] In one embodiment, referring to Figure 1 - Figure 3 The spraying system 2 comprises a spraying bin 21, a spraying pipe 22, an air doctor 23 and a second pump 24. The spraying pipe 22 is installed in the spraying bin 21, the air doctor 23 is installed on one side of the spraying bin 21, and the second pump 24 is communicated with the storage bin 11 and used to deliver the coating to the spraying pipe 22.

[0033] In this embodiment, the second pump 24 is also a submersible pump, and a plurality of through holes are formed in the opposite side walls of the spraying bin 21 and used for the steel pipe to penetrate the spraying bin 21, so that the coating is sprayed in the spraying bin 21.

[0034] Further, the air doctor 23 comprises an inner ring and an outer ring, and adopts an independent adjustment mode for each pipe to adjust the air pressure and control the thickness of the coating.

[0035] Further, the spraying pipe 22 is in plurality, and the flow of the coating can be adjusted for each spraying pipe 22, so that the staff can adjust the spraying flow of the coating according to the different pipe diameters.

[0036] In one embodiment, referring to Figure 1 - Figure 3 The spraying system 2 further comprises a gas storage tank 25, a pressure regulator 26 and a pressure gauge 27. The gas storage tank 25 is communicated with the air doctor 23, and the pressure regulator 26 and the pressure gauge 27 are respectively installed on the side walls of the gas storage tank 25.

[0037] In this embodiment, the air is stored in the storage tank, and the pressure regulator 26 and the pressure gauge 27 are installed on the storage tank, so that the staff can adjust the pressure of the air doctor 23 according to the coating thickness of the steel pipe surface of the continuous production line, thereby ensuring the coating thickness of each product.

[0038] In one embodiment, referring to Figure 1 - Figure 3 A guide roller 28 is installed on one side of the spraying bin 21, and the guide roller 28 is oppositely arranged with the air doctor 23.

[0039] In this embodiment, the guide roller 28 is used to guide the movement of the steel pipe.

[0040] In one embodiment, referring to Figure 1 - Figure 3 The air doctor 23 adopts a bidirectional air inlet mode.

[0041] In the embodiment, the gas scraper 23 adopts the multi-hole air outlet mode, so that the gas amount in the gas scraper 23 is sufficient and uniform, and the uneven air outlet caused by single-hole air inlet is avoided.

[0042] In one of the embodiments, referring to Figure 1 Figure 3 , the gas scraper 23 adopts the multi-hole air outlet mode.

[0043] In the embodiment, the gas scraper 23 adopts the multi-hole air outlet mode to blow the coating surface, so that the uniformity of the coating is improved.

[0044] In one of the embodiments, referring to Figure 1 Figure 3 , the bottom of the spraying bin 21 is provided with a discharge port 211.

[0045] In the embodiment, the spraying bin 21 is higher than the storage bin 11, the discharge port 211 is communicated with a recovery pipe, and the recovery pipe is communicated with the storage bin 11, so that the excess coating in the spraying bin 21 can flow to the storage bin 11 from the discharge port 211, and is reused.

[0046] In one of the embodiments, referring to Figure 1 Figure 3 , the side plate of the storage bin 11 is provided with a liquid level meter 17.

[0047] In the embodiment, the liquid level meter 17 is used to identify the amount of coating in the storage bin 11, so that the coating in the storage bin 11 can be replenished in time when the coating is almost used up.

[0048] In one of the embodiments, referring to Figure 1 Figure 1 to Figure 3 , the bottom of the storage bin 11 is inclined.

[0049] In the embodiment, the bottom of the storage bin 11 is designed as a slope, so that the coating can be collected together, and the solid accumulation at the bottom is avoided.

[0050] In one of the embodiments, referring to ​ , the bottom of the storage system 1 and the spraying system 2 is provided with a rack 3.

[0051] In the embodiment, the rack 3 is used to support the storage system 1 and the spraying system 2.

[0052] In order to better understand the utility model, the following will be combined ​ to make a detailed description of the technical scheme of the utility model:

[0053] ​​​​First, the first pump 16 constantly transports paint to the heat exchanger 12, the hot water pump 14 opens, the heat exchanger 12 is in hot water, that is, the paint is heated to the process specified temperature; then, when the paint temperature increases with the working time and is affected by the induction heating temperature, the hot water pump 14 is closed, the cold water pump 13 is opened, the cold water enters the heat exchanger 12 and the paint is cooled; when the paint temperature is lower than the process specified temperature, the hot water pump 14 is opened again, and the cold water pump 13 is closed; finally, the constant temperature paint is transported to the spray pipe 22 through the second pump 24, the air knife 23 is started, and the steel pipe can be realized spray processing, in the utility model, the constant temperature of PVF paint is avoided when the room temperature cannot be controlled and continuous production, the defect that the coating quality is uneven, the stability of product quality is ensured, the automatic constant temperature of paint is realized, and the coating quality is effectively improved.

[0054] The specific embodiment of the utility model above does not constitute the limitation to the protection scope of the utility model, and any various other corresponding changes and deformation made according to the technical concept of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A PVF coated device, characterized in that, The application relates to a paint spraying system. The paint spraying system comprises a paint storage system and a spraying system. The paint storage system comprises a paint storage bin, a heat exchanger, a cold water pump, a hot water pump, a temperature sensor and a first pump. The heat exchanger is arranged on one side of the paint storage bin and is communicated with the cold water pump and the hot water pump.

2. A PVF coating apparatus according to claim 1, wherein The temperature sensor is arranged on the side wall of the paint storage bin and is electrically connected with the cold water pump and the hot water pump.

3. A PVF coating apparatus according to claim 2, wherein The first pump is communicated with the paint storage bin and is used for conveying paint to the heat exchanger.

4. A PVF coating apparatus according to claim 2, wherein The spraying system is connected with the paint storage bin.

5. The PVF-coated apparatus of claim 2, wherein The spraying system comprises a spraying bin, a spraying pipe, an air doctor and a second pump.

6. A PVF coating apparatus according to claim 2, wherein The spraying pipe is arranged in the spraying bin.

7. A PVF coating apparatus according to claim 2, wherein The air doctor is arranged on one side of the spraying bin.

8. The PVF-coated apparatus of claim 1, wherein The second pump is communicated with the paint storage bin and is used for conveying paint to the spraying pipe.

9. The PVF-coated apparatus of claim 1, wherein The spraying system further comprises a gas tank, a pressure regulator and a pressure gauge.

10. The PVF-coated apparatus of claim 1, wherein The gas tank is communicated with the air doctor. The pressure regulator and the pressure gauge are arranged on the side wall of the gas tank. One side of the spraying bin is provided with a guide roller which is arranged opposite to the air doctor. The air doctor adopts a bidirectional air inlet mode. The air doctor adopts a multi-hole air outlet mode. A discharge port is arranged at the bottom of the spraying bin. A liquid level meter is arranged on the side plate of the paint storage bin. The bottom of the paint storage bin is arranged in an inclined mode. Machine frames are arranged at the bottom of the paint storage system and the spraying system.

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