A uniform FEP coating spraying device

Abstract

This utility model discloses an FEP coating uniform spraying device, including a base plate. Two conveying components are installed on the top of the base plate, and the two conveying components are respectively located on both sides of the base plate. Each conveying component includes a mounting base fixedly connected to one side of the outer wall of the top of the base plate. Two horizontally arranged limiting rods are fixedly connected inside the mounting base. The two limiting rods are slidably connected to two moving blocks. Two sets of support frames of the same number and symmetrical arrangement are fixedly connected to the outer wall of the top of each of the two moving blocks. The two sets of support frames are staggered, and each set of support frames consists of several individuals distributed at equal distances. An inclined guide roller is rotatably connected inside each of the support frames. By setting the conveying components, this utility model can adjust according to the size of the pipe, thereby ensuring that pipes of different specifications can be placed in the middle position of the spraying components and can continuously convey the pipes, thereby realizing continuous processing.

Description

Technical Field

[0001] This utility model relates to the field of spraying equipment technology, specifically to a device for uniformly spraying FEP coating. Background Technology

[0002] In many industrial sectors, optimizing the performance of material surfaces has always been one of the key factors in improving product quality and performance. FEP, as a high-performance fluoropolymer, has excellent chemical stability, corrosion resistance, high temperature resistance, and low coefficient of friction. In the chemical industry, it can be coated on the inner walls of pipes, containers, and other equipment to resist the erosion of various strong acids, strong alkalis, and other corrosive media, thus extending the service life of the equipment.

[0003] A search revealed a utility model patent with Chinese patent publication number CN214416769U, which discloses a pipe spraying device. The device includes a base plate with a vertical plate fixed to its top right side. Transmission components are provided on both the left and right sides of the vertical plate. This pipe spraying device allows the roller and the horizontal pipe to rotate simultaneously via a belt-driven connection to a first grooved pulley. Through the clearance fit between the sliding plate and the sliding groove, and between the slider and the sliding rail, the pipe can rotate under force, thus enabling simultaneous and uniform circumferential spraying of the inner and outer walls of the pipe.

[0004] The aforementioned spraying equipment uses a transmission structure to fix the pipes before spraying. However, this processing method can only process sequentially, requiring the pipes to be picked up and put down each time, making continuous processing impossible and leaving room for improvement. Utility Model Content

[0005] The purpose of this invention is to provide an FEP coating uniform spraying device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an FEP coating uniform spraying device, comprising a base plate, two conveying components mounted on the top of the base plate, with the two conveying components respectively located on both sides of the base plate. Each conveying component includes a mounting seat fixedly connected to one side of the outer wall of the top of the base plate. Two horizontally arranged limiting rods are fixedly connected inside the mounting seat. The two limiting rods are slidably connected to two moving blocks. Two sets of symmetrically arranged support frames are fixedly connected to the top outer walls of each of the two moving blocks. The two sets of support frames are staggered, and each support frame consists of several equally spaced individuals. An inclined guide roller is rotatably connected inside each of the support frames. A common mounting cover is fixedly connected to the top outer wall of one side of the support frames. A driving structure is installed inside the mounting seat, and the driving structure includes a bidirectional lead screw, a motor, and two mounting covers.

[0007] As a further preferred embodiment of this technical solution, the bidirectional lead screw is rotatably connected inside the mounting base, the two moving blocks are respectively threaded to the threads at both ends of the bidirectional lead screw, the second motor is fixedly installed on the outer wall of one end of the mounting base, the output end of the second motor is coaxially fixed with one end of the bidirectional lead screw, and a transmission structure adapted to several guide rollers is installed inside the mounting cover.

[0008] It can be adjusted according to the size of the pipe, so as to ensure that pipes of different specifications can be placed in the middle of the spraying component and can continuously convey the pipe to achieve continuous processing. Since the guide rollers on both sides are set in an inverted V shape, when the pipe is placed between several guide rollers of the conveying component, it will be guided to move to the middle position between the two guide rollers. If the pipe size to be processed is large, the motor is started to drive the bidirectional screw to rotate. The bidirectional screw can drive the two moving blocks connected to it by threads to move away from each other along the limit rod. After the pipe is placed between the two sets of symmetrical guide rollers, it will move lower than before, ensuring that it is exactly in the middle of the first channel of the mounting frame, which helps to improve the adaptability of the device. Through the transmission structure inside the drive mounting cover, the guide rollers can drive the pipe to move at a uniform speed.

[0009] As a further preferred embodiment of this technical solution, a spraying assembly is installed on the top of the base plate, and the spraying assembly is located between the two mounting seats.

[0010] As a further preferred embodiment of this technical solution, the spraying assembly includes a mounting bracket 1 fixedly connected to the top outer wall of the base plate. Several nozzles are slidably connected inside the circular channel at the top of the mounting bracket 1. Two protrusions are provided at the ends of the nozzles. A guide rod is slidably connected inside each protrusion. The guide rods are fixedly connected to the outer surface of the mounting bracket 1 and are arranged parallel to the adjacent nozzles. A spring is sleeved on the outside of each guide rod.

[0011] As a further preferred embodiment of this technical solution, a second mounting bracket is fixedly connected to the top outer wall of the base plate, and a rotating ring is rotatably connected to the inner circumference of the second mounting bracket. The center line of the rotating ring coincides with the center line of the top channel of the first mounting bracket. Several guide rods are fixedly connected to the inner circumference of the rotating ring at equal intervals. A horizontally arranged extension column is fixedly connected to the outer circumference of several nozzles near the end of the rotating ring. The extension columns are respectively attached to the guide rods, and the contact surface between the guide rods and the extension columns is set as an inclined surface.

[0012] As a further preferred embodiment of this technical solution, a worm gear is coaxially fixed to the outer wall of the rotating ring, a horizontally arranged worm is rotatably connected to a position of the mounting bracket, the worm meshes with the worm gear, and a motor is fixedly installed on the top of one side of the outer wall of the mounting bracket, with the output end of the motor being coaxially fixed to one end of the worm.

[0013] When the pipe passes through the range of several nozzles, the PET coating sprayed from these nozzles can be evenly sprayed onto the pipe surface. If the pipe size increases, the PET coating sprayed from the nozzles cannot completely cover the pipe. The control motor drives the worm gear to rotate, and the worm gear drives the worm wheel to rotate through meshing. The worm wheel drives the rotating ring and guide rod to rotate. When the guide rod moves away from the extension column, the extension column, which was originally restricted by the guide rod, is no longer restricted. The compressed spring can then push the nozzle and extension column away from the guide rod until they come into contact with the guide rod again and stop. At this time, the distance between the nozzle and the pipe becomes longer, and the area of ​​the coating sprayed on the pipe surface will also be larger, until the coating sprayed from several nozzles can once again completely cover the pipe.

[0014] As a further preferred embodiment of this technical solution, a drying hood is fixedly connected to the top outer wall of the base plate. The drying hood is located between the spraying assembly and one of the conveying assemblies. The inner circumference of the drying hood has several air outlets distributed at equal intervals, and the air inlet of the drying hood is connected to the air outlet of an external hot air blower.

[0015] This utility model provides a device for uniformly spraying FEP coating, which has the following beneficial effects: (1) By setting up a conveying component, this utility model can adjust according to the size of the pipe, thereby ensuring that pipes of different specifications can be placed in the middle of the spraying component and can continuously convey the pipe, thereby realizing continuous processing. Since the guide rollers on both sides are set in an inverted V shape, when the pipe is placed between several guide rollers of the conveying component, it will be guided to move to the middle position of the two guide rollers. If the pipe to be processed is large, start the motor to drive the bidirectional screw to rotate. The bidirectional screw can drive the two moving blocks connected to it to move away from each other along the limit rod. After the pipe is placed between the two sets of symmetrical guide rollers, it will move down compared to before, ensuring that it is exactly in the middle of the first channel of the mounting frame, which is conducive to improving the adaptability of the device. By driving the transmission structure inside the mounting cover, the guide roller can drive the pipe to move at a uniform speed.

[0016] (2) By setting up a spraying assembly, when the pipe passes through the range of several nozzles, the PET coating sprayed by several nozzles can be evenly sprayed on the surface of the pipe. If the pipe size increases, the PET coating sprayed by the nozzles cannot completely cover the pipe. The control motor drives the worm gear to rotate. The worm gear drives the worm wheel to rotate through meshing. The worm wheel drives the rotating ring and the guide rod to rotate. When the guide rod moves away from the extension column, the extension column, which was originally restricted by the guide rod, is no longer restricted. The compressed spring can push the nozzle and the extension column away from the guide rod until it stops after contacting the guide rod again. At this time, the distance between the nozzle and the pipe becomes longer, and the area of ​​the coating sprayed on the surface of the pipe will also be larger until the coating sprayed by several nozzles can completely cover the pipe again. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model; Figure 2 This is a schematic diagram of the overall second-view structure of this utility model; Figure 3 This is a schematic diagram of the structure of the spraying assembly of this utility model; Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle; In the diagram: 1. Base plate; 2. Drying hood; 3. Spraying assembly; 4. Conveying assembly; 301. Mounting bracket one; 302. Mounting bracket two; 303. Nozzle; 304. Guide rod; 305. Spring; 306. Extension column; 307. Rotating ring; 308. Guide rod; 309. Worm gear; 310. Motor one; 311. Worm wheel; 401. Mounting base; 402. Limiting rod; 403. Moving block; 404. Support frame; 405. Guide roller; 406. Mounting cover; 407. Bidirectional lead screw; 408. Motor two. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] This utility model provides a technical solution: such as Figure 1 and Figure 2 As shown, in this embodiment, an FEP coating uniform spraying device includes a base plate 1. Two conveying components 4 are installed on the top of the base plate 1, and the two conveying components 4 are respectively located on both sides of the base plate 1. The conveying components 4 include a mounting base 401 fixedly connected to one side of the top outer wall of the base plate 1. Two horizontally arranged limiting rods 402 are fixedly connected inside the mounting base 401. The two limiting rods 402 are slidably connected to two moving blocks 403. Two sets of support frames 404 of the same number and symmetrical arrangement are fixedly connected to the top outer wall of each of the two moving blocks 403. The two sets of support frames 404 are staggered, and each set of support frames 404 is composed of several individuals distributed at equal distances. An inclined guide roller 405 is rotatably connected inside each of the several support frames 404. The same mounting cover 406 is fixedly connected to the top outer wall of the several support frames 404 on one side. A driving structure is installed inside the mounting base 401. The driving structure includes a bidirectional lead screw 407 (whose thread helix angle is less than the equivalent friction angle and is a self-locking lead screw), a motor 408, and two mounting covers 406.

[0020] The bidirectional lead screw 407 is rotatably connected inside the mounting base 401. Two moving blocks 403 are threadedly connected to the threads at both ends of the bidirectional lead screw 407. The second motor 408 is fixedly installed on the outer wall of one end of the mounting base 401. The output end of the second motor 408 is coaxially fixed with one end of the bidirectional lead screw 407. The mounting cover 406 is equipped with a transmission structure adapted to several guide rollers 405 (this structure is prior art and is not the focus of this patent, so it will not be described in detail here).

[0021] Since the guide rollers 405 on both sides are arranged in an inverted V shape, when the pipe is placed between several guide rollers 405 of the conveying assembly 4, it will be guided to move to the middle position of the two guide rollers 405. If the pipe size to be processed is large, the start motor 408 drives the bidirectional lead screw 407 to rotate. The bidirectional lead screw 407 can drive the two moving blocks 403 connected to it to move away from each other along the limit rod 402. After the pipe is placed between the two sets of symmetrical guide rollers 405, it will move lower than before, ensuring that it is exactly in the middle of the mounting bracket 301 channel, which is beneficial to improving the adaptability of the device. Through the transmission structure inside the drive mounting cover 406, the guide rollers 405 can drive the pipe to move at a uniform speed.

[0022] As shown in Figure 2, Figure 3 and Figure 4 As shown, a spraying assembly 3 is installed on the top of the base plate 1, and the spraying assembly 3 is located between the two mounting seats 401.

[0023] The spraying assembly 3 includes a mounting bracket 301 fixedly connected to the top outer wall of the base plate 1. Several nozzles 303 are slidably connected inside the circular channel at the top of the mounting bracket 301. Two protrusions are provided at the ends of the nozzles 303. A guide rod 304 is slidably connected inside the protrusions. The guide rods 304 are fixedly connected to the outer surface of the mounting bracket 301 and are parallel to the adjacent nozzles 303. A spring 305 is sleeved on the outside of each guide rod 304.

[0024] Mounting bracket 2 302 is fixedly connected to the top outer wall of the base plate 1. A rotating ring 307 is rotatably connected to the inner circumference of mounting bracket 2 302. The center line of the rotating ring 307 coincides with the center line of the top channel of mounting bracket 1 301. Several guide rods 308 are fixedly connected to the inner circumference of the rotating ring 307 at equal intervals. A horizontally set extension column 306 is fixedly connected to the outer circumference of several nozzles 303 near the end of the rotating ring 307. Several extension columns 306 are respectively attached to several guide rods 308, and the contact surface between the guide rods 308 and the extension columns 306 is set as an inclined surface.

[0025] A worm gear 311 is coaxially fixed to the outer wall of the rotating ring 307. A horizontally arranged worm 309 is rotatably connected to the mounting bracket 301. The worm 309 meshes with the worm gear 311. A motor 310 is fixedly installed on the top of the outer wall of one side of the mounting bracket 301. The output end of the motor 310 is coaxially fixed to one end of the worm 309.

[0026] When the pipe passes through the range of several nozzles 303, the PET coating sprayed by the nozzles 303 can be evenly sprayed on the pipe surface. If the pipe size increases, the PET coating sprayed by the nozzles 303 cannot completely cover the pipe. The control motor 310 drives the worm gear 309 to rotate. The worm gear 309 drives the worm wheel 311 to rotate through meshing. The worm wheel 311 drives the rotating ring 307 and the guide rod 308 to rotate. When the guide rod 308 moves away from the extension column 306, the extension column 306, which was originally restricted by the guide rod 308, is no longer restricted. The compressed spring 305 can then push the nozzles 303 and the extension column 306 away from the guide rod 308 until they contact the guide rod 308 again and stop. At this time, the distance between the nozzles 303 and the pipe becomes longer, and the area of ​​the coating sprayed on the pipe surface will also be larger, until the coating sprayed by the several nozzles 303 can once again completely cover the pipe.

[0027] like Figure 1 As shown in Figure 2, a drying hood 2 is fixedly connected to the top outer wall of the base plate 1. The drying hood 2 is located between the spraying assembly 3 and one of the conveying assemblies 4. Several air outlets are evenly distributed on the inner circumference of the drying hood 2, and the air inlet of the drying hood 2 is connected to the air outlet of an external hot air blower. The external blower enters the interior of the drying hood 2 through the connected pipe, and then sprays out the coating through several air outlets for drying.

[0028] This utility model provides a uniform FEP coating spraying device, the specific working principle of which is as follows: When the device is working, since the guide rollers 405 on both sides are arranged in an inverted V shape, when the pipe is placed between several guide rollers 405 of the conveying component 4, it will be guided to move to the middle position of the two guide rollers 405. If the pipe size to be processed is large, the starting motor 408 drives the bidirectional lead screw 407 to rotate. The bidirectional lead screw 407 can drive the two moving blocks 403 connected to it to move away from each other along the limit rod 402. After the pipe is placed between the two sets of symmetrical guide rollers 405, it will move lower than before, ensuring that it is exactly in the middle of the mounting bracket 301 channel, which is beneficial to improving the adaptability of the device. Through the transmission structure inside the drive mounting cover 406, the guide rollers 405 can drive the pipe to move at a uniform speed.

[0029] When the pipe passes through the range of several nozzles 303, the PET coating sprayed by the nozzles 303 can be evenly sprayed on the pipe surface. If the pipe size increases, the PET coating sprayed by the nozzles 303 cannot completely cover the pipe. The control motor 310 drives the worm gear 309 to rotate. The worm gear 309 drives the worm wheel 311 to rotate through meshing. The worm wheel 311 drives the rotating ring 307 and the guide rod 308 to rotate. When the guide rod 308 moves away from the extension column 306, the extension column 306, which was originally restricted by the guide rod 308, is no longer restricted. The compressed spring 305 can then push the nozzles 303 and the extension column 306 away from the guide rod 308 until they contact the guide rod 308 again and stop. At this time, the distance between the nozzles 303 and the pipe becomes longer, and the area of ​​the coating sprayed on the pipe surface will also be larger, until the coating sprayed by the several nozzles 303 can once again completely cover the pipe.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for uniform spraying of FEP coating, comprising a base plate (1), characterized in that: Two conveying assemblies (4) are installed on the top of the base plate (1), and the two conveying assemblies (4) are respectively located on both sides of the base plate (1). Each conveying assembly (4) includes a mounting base (401) fixedly connected to one side of the top outer wall of the base plate (1). Two horizontally arranged limiting rods (402) are fixedly connected inside the mounting base (401). The two limiting rods (402) are slidably connected to two moving blocks (403). The top outer walls of the two moving blocks (403) are fixedly connected to two sets of symmetrically arranged supports of the same number. The support frame (404) consists of two sets of support frames (404) arranged alternately, and each set of support frames (404) is composed of several individuals distributed at equal distances. Each set of support frames (404) is rotatably connected to an inclined guide roller (405). The top outer wall of each set of support frames (404) on one side is fixedly connected to the same mounting cover (406). The mounting base (401) is equipped with a drive structure, which includes a two-way lead screw (407), a second motor (408), and two mounting covers (406).

2. The FEP coating uniform spray device of claim 1, wherein: The bidirectional lead screw (407) is rotatably connected inside the mounting base (401). The two moving blocks (403) are respectively threaded to the threads at both ends of the bidirectional lead screw (407). The second motor (408) is fixedly installed on the outer wall of one end of the mounting base (401). The output end of the second motor (408) is coaxially fixed with one end of the bidirectional lead screw (407). The mounting cover (406) is equipped with a transmission structure adapted to several guide rollers (405).

3. The FEP coating uniform spray device of claim 1, wherein: The base plate (1) is equipped with a spraying assembly (3) on top, and the spraying assembly (3) is located between two mounting seats (401).

4. The FEP coating uniform spray device of claim 3, wherein: The spraying assembly (3) includes a mounting bracket (301) fixedly connected to the top outer wall of the base plate (1). Several nozzles (303) are slidably connected inside the circular channel at the top of the mounting bracket (301). Two protrusions are provided at the ends of the nozzles (303). A guide rod (304) is slidably connected inside the protrusions. The guide rods (304) are fixedly connected to the outer surface of the mounting bracket (301) and are parallel to the adjacent nozzles (303). A spring (305) is sleeved on the outside of each guide rod (304).

5. The FEP coating uniform spray device of claim 4, wherein: The top outer wall of the base plate (1) is fixedly connected to the second mounting bracket (302). The inner circumference of the second mounting bracket (302) is rotatably connected to the rotating ring (307). The center line of the rotating ring (307) coincides with the center line of the top channel of the first mounting bracket (301). The inner circumference of the rotating ring (307) is fixedly connected to several guide rods (308) that are evenly distributed. The outer circumference of several nozzles (303) is fixedly connected to a horizontally arranged extension column (306) at one end near the rotating ring (307). The extension columns (306) are respectively attached to several guide rods (308), and the contact surface between the guide rods (308) and the extension columns (306) is set as an inclined surface.

6. The FEP coating uniform spray device of claim 5, wherein: A worm gear (311) is coaxially fixed to the outer wall of the rotating ring (307). A horizontally arranged worm (309) is rotatably connected to the mounting bracket (301). The worm (309) meshes with the worm gear (311). A motor (310) is fixedly installed on the top of one side of the outer wall of the mounting bracket (301). The output end of the motor (310) is coaxially fixed to one end of the worm (309).

7. The FEP coating uniform spray device of claim 1, wherein: A drying hood (2) is fixedly connected to the top outer wall of the base plate (1). The drying hood (2) is located between the spraying assembly (3) and one of the conveying assemblies (4). The inner circumference of the drying hood (2) has several air outlets distributed at equal intervals, and the air inlet of the drying hood (2) is connected to the air outlet of an external hot air blower.

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