Weather resistance testing equipment for polyurethane waterproof coating

Abstract

The utility model discloses equipment for testing the weather resistance of polyurethane waterproof paint, and relates to the technical field of polyurethane waterproof paint. The device comprises a test box, a rotating disc and a test frame, a heating pipe is clamped and fixed at the bottom in the test box, the rotating disc is inserted into the top in the test box in a penetrating manner, an air blower is clamped at one end of the bottom of the rotating disc in a penetrating manner, and an ultraviolet irradiation lamp is clamped at the other end of the bottom of the rotating disc in a penetrating manner; a ventilation net rack is arranged on one side of the test frame, test paper is arranged on the top of the ventilation net rack, and lifting cylinders are arranged on two sides of the bottom of the ventilation net rack. Through the arrangement of the test box, the rotating disc and the test frame, the problems that the ultraviolet irradiation position and area of weather resistance test equipment are relatively fixed, but the sunlight irradiation position is influenced by the environment and time, the reality and the experiment have relatively large difference, the test time is generally relatively fixed, and the weather resistance of the waterproof coating cannot be accurately judged are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of polyurethane waterproof coatings, and particularly relates to a weather resistance testing device for polyurethane waterproof coatings. Background Technique

[0002] Polyurethane waterproof coating is a prepolymer containing isocyanate groups formed by the addition polymerization reaction of isocyanate, polyether, etc., and is formulated with catalysts, anhydrous auxiliaries, anhydrous fillers, solvents, etc. It is processed into a one-component polyurethane waterproof coating through processes such as mixing. It has the advantages of good weather resistance, simple operation, light weight, high strength, large elongation, good water resistance, and strong adaptability to the deformation of the base layer. Therefore, it is widely used in the waterproofing, anti-seepage, and moisture-proofing of roofs, toilet and bathroom floors, basements, water storage tanks, and walls. However, during the production and processing of polyurethane waterproof coatings, especially in the ingredient experiment stage, in order to ensure its effect and service life during actual construction and use, equipment is usually required to test the weather resistance of the coating, simulate the weather resistance of the coating under harsh environments for a long time, so as to ensure that the product can be mass-produced. However, it still has the following drawbacks in actual use:

[0003] 1. The utility model with the publication number CN217425147U discloses a weather resistance testing device for waterborne epoxy resin waterproof coatings. An internal groove is fixedly connected to the middle part inside the device main body, and a water storage tank is fixedly connected to the rear side of the device main body. Two sides of the front of the water storage tank are fixedly connected with conveying pipes, and the right side of the conveying pipe is fixedly connected with a connecting pipe. The bottom of the middle part of the connecting pipe is connected with a support plate, and the support plate and the support rod can well support the connecting pipe. Ultraviolet lamps can simulate sunlight to accelerate the light aging experiment. However, the position of the ultraviolet lamps in the device is relatively fixed. In actual use of the coating, the irradiation angle and position of sunlight are often affected by time and the environment, which may cause different light aging speeds in each area of a large area of the coating, and there is a large difference from the stable large-area ultraviolet irradiation in the test, resulting in a deviation between the test effect and the actual situation.

[0004] 2. Polyurethane waterproof coating weather resistance testing equipment usually uses materials such as plates that have waterproof effects themselves, then coats the surface with polyurethane waterproof coating, and detects the weather resistance of the coating after a certain period of time. However, this will cause a certain amount of time to be constantly required for the detection process, and it is impossible to accurately judge the actual service life of the coating. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a weather resistance testing device for polyurethane waterproof coatings. Through a testing chamber, a rotating disk, and a testing rack, it solves the problem that when the weather resistance testing device for polyurethane waterproof coatings is conducting tests, the position and area of ultraviolet light irradiation are relatively fixed. However, in the actual use of the coating, the position of sunlight irradiation is affected by the environment and time, and there is a large difference from the stable large-area ultraviolet irradiation in the test. The test time is usually relatively fixed, and it is impossible to accurately judge the weather resistance of the waterproof coating.

[0006] To solve the above technical problems, the present utility model is realized through the following technical solutions:

[0007] The present utility model is a weather resistance testing device for polyurethane waterproof coatings, including a testing chamber, a rotating disk, and a testing rack. A reflux pipe is welded and fixed to the top of the testing chamber. A heating pipe is snap-fitted and fixed to the bottom inside the testing chamber. A rotating disk is inserted through the top inside the testing chamber. One end of the bottom of the rotating disk is snap-fitted and penetrated by a blower. The other end of the bottom of the rotating disk is snap-fitted with an ultraviolet irradiation lamp. A testing rack is inserted through one side of the testing chamber. A ventilation grid frame is arranged on one side of the testing rack. A test paper is arranged on the top of the ventilation grid frame. Lifting cylinders are arranged on both sides of the bottom of the ventilation grid frame;

[0008] Through the reflux pipe, air can circulate inside the testing chamber to avoid the loss of heat. Through the heating pipe, water can be heated to increase the transpiration speed of water, create a high-temperature and high-humidity environment inside the testing chamber, and accelerate the weather resistance test of the coating. Through the blower, the flow of air can be driven to simulate a windy environment in reality. Through the rotation of the rotating disk, the blower and the ultraviolet irradiation lamp can be further driven to rotate, adjusting the angle of air flow or the angle of ultraviolet light irradiation. Through the lifting cylinders, the testing rack can be driven to move up and down to adjust the area of ultraviolet light irradiation, making the experimental results more in line with the weather resistance of the coating during actual use. Since the material of the test paper is paper and its waterproof effect is relatively poor, during the test, when the coating ages, moisture in the air can penetrate the test paper. When the humidity sensor located at the bottom of the test paper monitors that the humidity exceeds the threshold value, it can remind the staff and stop the experiment, facilitating the accurate judgment of the weather resistance of the coating in a harsh environment.

[0009] Further, a water inlet pipe and a drain pipe are inserted through and snap-fitted from top to bottom on one side of the testing chamber. The water inlet pipe and the drain pipe are located at the bottom of the testing rack. Anti-slip pads are snap-fitted around the bottom of the testing chamber;

[0010] Through the water inlet pipe, water can be poured into the testing chamber, and the water can be heated by the heating pipe to create a high-temperature and high-humidity environment inside the testing chamber, accelerating the weather resistance test of the coating and improving the test efficiency.

[0011] Further, a ventilation opening is formed through the top of the test chamber. The ventilation opening is in through-connection and communication with the inside of the return pipe. Sliding grooves are formed at both ends inside the test chamber. The bottom of the return pipe is in through-connection and clamped to one side of the test chamber, and the bottom end of the return pipe is located at the bottom of the test rack.

[0012] The blower can drive the flow of air, improve the transpiration speed of hot water, and can simulate the windy environment in reality. The return pipe enables the air to circulate inside the test chamber, avoiding the loss of heat.

[0013] Further, a rotating motor is clamped to the top of the rotating disk. The rotating motor is clamped to the top of the test chamber, and the blower is attached to the bottom of the ventilation opening.

[0014] The rotating motor can drive the rotation of the rotating disk, further driving the rotation of the blower and the ultraviolet irradiation lamp, adjusting the angle of air flow, or adjusting the angle of ultraviolet light irradiation, so that the experimental results are more in line with the weather resistance of the coating during actual use.

[0015] Further, a support frame is welded and fixed to the bottom of one side of the test rack. Sliders are welded and fixed to both sides of the support frame. The sliders are slidably clamped inside the sliding grooves. The lifting cylinder is clamped to the top of the support frame, and a telescopic tube is slidably clamped to the top of the lifting cylinder. The telescopic tube is clamped to the bottom of the ventilation network frame.

[0016] The lifting cylinder can drive the test rack to move up and down, adjusting the ultraviolet light irradiation area, so that the experimental results are more in line with the weather resistance of the coating during actual use.

[0017] Further, a support platform is in through-connection and clamped to the top of the ventilation network frame. A humidity sensor is in through-connection and clamped to the top of the support platform. A sealing glue is adhesively fixed to the bottom edge of the test paper, and the sealing glue is adhesively fixed to the top of the support platform. The humidity sensor is located inside the sealing glue.

[0018] During the weather resistance test, the coating is fully sprayed on the surface of the test paper. Since the material of the test paper is paper and its waterproof effect is poor, during the test, when the coating ages, the moisture in the air can penetrate the test paper. When the humidity sensor at the bottom of the test paper monitors that the humidity exceeds the threshold value, it can remind the staff and stop the experiment, facilitating the accurate judgment of the weather resistance of the coating in a harsh environment.

[0019] The utility model has the following beneficial effects:

[0020] 1. The utility model solves the problem that although the ultraviolet lamp can simulate sunlight to accelerate the light aging experiment by setting a rotating disk and a test rack, the position of the ultraviolet lamp of the device is relatively fixed. However, in the actual use of the coating, the irradiation angle and position of sunlight are often affected by time and environment, which may cause different light aging speeds in each area of the large-area coating, and there is a large difference from the stable large-area ultraviolet irradiation in the test, resulting in a deviation between the test effect and the actual situation. By rotating the rotating disk, the blower and the ultraviolet irradiation lamp can be further driven to rotate, adjusting the angle of air flow or the angle of ultraviolet light irradiation. By using a lifting cylinder, the test rack can be driven to move up and down to adjust the ultraviolet light irradiation area, making the experimental results more in line with the weather resistance of the coating during actual use.

[0021] 2. The utility model solves the problem that the weather resistance test equipment for polyurethane waterproof coatings usually uses materials with waterproof effects such as plates, then coats the surface with polyurethane waterproof coatings, and detects the weather resistance of the coatings after a certain period of time, but it will cause a certain time to be constantly required in the detection process and it is impossible to accurately judge the actual service life of the coatings. During the weather resistance test, the coating is fully sprayed on the surface of the test paper, and the test paper is pasted on the upper side of the support table through a sealant. During the test process, since the material of the test paper is paper and its waterproof effect is poor, when the coating ages, the moisture in the air can penetrate the test paper. When the humidity sensor monitors that the humidity exceeds the threshold value, it can remind the staff and stop the experiment, which is convenient for accurately judging the weather resistance of the coating in a harsh environment. Description of the Drawings

[0022] Figure 1 is the structural effect diagram of the utility model;

[0023] Figure 2 is the structural schematic diagram of the utility model;

[0024] Figure 3 is the cross-sectional view of the test chamber of the utility model;

[0025] Figure 4 is the structural diagram of the rotating disk of the utility model;

[0026] Figure 5 is the structural diagram of the test rack and the ventilation grid of the utility model;

[0027] Figure 6 is the structural diagram of the ventilation grid and the test paper of the utility model;

[0028] Figure 7 is the bottom view of the ventilation grid and the test paper of the utility model.

[0029] Reference Signs:

[0030] 1. Test chamber; 101. Return pipe; 102. Vent; 103. Slide groove; 104. Water inlet pipe; 105. Drain pipe; 106. Heating pipe; 107. Anti-slip mat; 2. Rotating disk; 201. UV lamp; 202. Rotating motor; 203. Blower; 3. Test rack; 301. Ventilation grid; 302. Support frame; 303. Slide block; 304. Lifting cylinder; 305. Telescopic pipe; 306. Support platform; 307. Test paper; 308. Humidity sensor; 309. Sealant. Detailed implementation manner

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] Please refer to Figures 1-7 As shown in the figure, the present invention is a weather resistance testing device for polyurethane waterproof coating, including a test chamber 1, a rotating disk 2 and a test rack 3. A return pipe 101 is welded and fixed to the top of the test chamber 1, a heating pipe 106 is snap-fitted and fixed to the bottom inside the test chamber 1, a rotating disk 2 is inserted through the top inside the test chamber 1, a blower 203 is inserted through and snap-fitted at one end of the bottom of the rotating disk 2, a UV lamp 201 is snap-fitted at the other end of the bottom of the rotating disk 2, a test rack 3 is inserted through one side of the test chamber 1, a ventilation grid 301 is arranged on one side of the test rack 3, a test paper 307 is arranged on the top of the ventilation grid 301, and lifting cylinders 304 are arranged on both sides of the bottom of the ventilation grid 301;

[0033] Fully spray the coating on the surface of the test paper 307, bond the test paper 307 to the upper side of the support platform 306 through the sealant 309, close the test rack 3 and start the test equipment. The blower 203 drives the air to circulate through the return pipe 101 regularly, the rotating motor 202 drives the rotating disk 2 to rotate a certain angle regularly, adjusts the air flow position and the UV light irradiation angle, the lifting cylinders 304 drive the ventilation grid 301 to move up and down regularly, adjusts the UV light irradiation position, simulates various environments in reality, heats the water through the heating pipe 106, improves the transpiration speed of the water, creates a high-temperature and high-humidity environment inside the test chamber 1, accelerates the weather resistance test of the coating. When the coating ages and the moisture in the air penetrates the test paper 307, when the humidity sensor 308 at the bottom of the test paper 307 monitors that the humidity exceeds the threshold value, it reminds the staff and stops the experiment, which is convenient for accurately judging the weather resistance of the coating in a harsh environment.

[0034] Among them, as Figures 1-3As shown in the figure, a water inlet pipe 104 and a drain pipe 105 are clamped and connected through the side of the test box 1 from top to bottom. The water inlet pipe 104 and the drain pipe 105 are located at the bottom of the test rack 3. Anti-slip pads 107 are clamped at the four corners of the bottom of the test box 1. A ventilation opening 102 is penetrated and opened at the top of the test box 1. The ventilation opening 102 is internally penetrated and communicated with the return pipe 101. Sliding grooves 103 are opened at both ends inside the test box 1. The bottom of the return pipe 101 is penetrated and clamped on one side of the test box 1, and the bottom end of the return pipe 101 is located at the bottom of the test rack 3;

[0035] During the test, water is poured into the test box 1 through the water inlet pipe 104, and the water is heated by the heating pipe 106 to create a high-temperature and high-humidity environment in the test box 1. The blower 203 drives the air to circulate through the return pipe 101, improving the transpiration speed of the hot water and being able to simulate the windy environment in reality to accelerate the weather resistance test of the coating.

[0036] As shown in Figure 1 , 2 , 4, and 5, a rotating motor 202 is clamped on the top of the rotating disk 2. The rotating motor 202 is clamped on the top of the test box 1. The blower 203 is attached to the bottom of the ventilation opening 102;

[0037] A support frame 302 is welded and fixed to the bottom of one side of the test rack 3. Sliders 303 are welded and fixed on both sides of the support frame 302. The sliders 303 are slidably clamped inside the sliding grooves 103. A lifting cylinder 304 is clamped on the top of the support frame 302. The top of the lifting cylinder 304 is slidably clamped with a telescopic pipe 305. The telescopic pipe 305 is clamped at the bottom of the ventilation network frame 301

[0038] During the test, the rotating motor 202 drives the rotating disk 2 to rotate a certain angle at regular intervals, further driving the blower 203 and the ultraviolet irradiation lamp 201 to rotate, adjusting the angle of air flow or the angle of ultraviolet light irradiation. The lifting cylinder 304 drives the telescopic pipe 305 to expand and contract at regular intervals, further driving the ventilation network frame 301 to move up and down, adjusting the irradiation area of the ultraviolet light, making the experimental results more in line with the weather resistance of the coating during actual use.

[0039] As shown in Figures 6-7 , a support platform 306 is penetrated and clamped on the top of the ventilation network frame 301. A humidity sensor 308 is penetrated and clamped on the top of the support platform 306. A sealing glue 309 is adhesively fixed to the bottom edge of the test paper 307. The sealing glue 309 is adhesively bonded to the top of the support platform 306. The humidity sensor 308 is located inside the sealing glue 309;

[0040] When conducting the weather resistance test, the coating is fully sprayed on the surface of the test paper 307, and the test paper 307 is adhesively fixed to the upper side of the support table 306 through the sealant 309 to cover the humidity sensor 308. During the test, when the coating ages, moisture in the air can penetrate the test paper 307. When the humidity sensor 308 monitors that the humidity exceeds the threshold value, it reminds the staff and stops the experiment, facilitating the accurate judgment of the weather resistance of the coating in a harsh environment.

[0041] The specific working principle of the present utility model is as follows: When conducting the weather resistance test, water is poured into the test chamber 1 through the water inlet pipe 104. The test rack 3 is slid open, and the coating is fully sprayed on the surface of the test paper 307. The test paper 307 is adhesively fixed to the upper side of the support table 306 through the sealant 309 to cover the humidity sensor 308. The test rack 3 is closed and the test equipment is started. The water is heated by the heating pipe 106 to create a high-temperature and high-humidity environment in the test chamber 1. The air is driven by the blower 203 to circulate through the return pipe 101 to increase the transpiration speed of the hot water. The motor 202 rotates regularly to drive the turntable 2 to rotate a certain angle, further driving the blower 203 and the ultraviolet irradiation lamp 201 to rotate, adjusting the angle of air flow or the angle of ultraviolet light irradiation. The lifting cylinder 304 drives the telescopic tube 305 to expand and contract regularly, further driving the ventilation grid 301 to move up and down to adjust the irradiation area of the ultraviolet light. When the coating ages, moisture in the air can penetrate the test paper 307. When the humidity sensor 308 monitors that the humidity exceeds the threshold value, it reminds the staff and stops the experiment. The drain pipe 105 is opened to drain the water.

[0042] The above are only the preferred embodiments of the present utility model, which do not limit the present utility model. Any modification to the technical solutions recorded in the foregoing embodiments, any equivalent replacement of some technical features, and any modification, equivalent replacement, and improvement made are all within the protection scope of the present utility model.

Claims

1. A polyurethane waterproof coating weather resistance testing device, comprising a test box (1), a rotating disk (2) and a test stand (3), characterized in that: A reflux pipe (101) is welded and fixed on the top of the test box (1), a heating pipe (106) is clamped and fixed on the bottom of the test box (1), a rotating disk (2) is inserted through the top of the test box (1), a blower (203) is inserted through one end of the bottom of the rotating disk (2), and an ultraviolet lamp (201) is clamped on the other end of the bottom of the rotating disk (2), a test rack (3) is inserted through one side of the test box (1), a ventilation grid (301) is provided on one side of the test rack (3), a test paper (307) is provided on the top of the ventilation grid (301), and lifting cylinders (304) are provided on both sides of the bottom of the ventilation grid (301).

2. The polyurethane waterproof coating weather resistance testing equipment according to claim 1, characterized in that: A water inlet pipe (104) and a drain pipe (105) are clamped through one side of the test box (1) from top to bottom. The water inlet pipe (104) and the drain pipe (105) are located at the bottom of the test frame (3). Anti-slip pads (107) are clamped around the bottom of the test box (1).

3. The polyurethane waterproof coating weather resistance testing equipment according to claim 1, characterized in that: A vent (102) is provided through the top of the test box (1), the vent (102) is connected to the inside of the return pipe (101), sliding grooves (103) are provided at both ends of the test box (1), the bottom of the return pipe (101) is connected to one side of the test box (1), and the bottom end of the return pipe (101) is located at the bottom of the test frame (3).

4. The polyurethane waterproof coating weather resistance testing equipment according to claim 3, characterized in that: A rotating motor (202) is clamped on the top of the rotating disk (2), the rotating motor (202) is clamped on the top of the test box (1), and the blower (203) is attached to the bottom of the ventilation opening (102).

5. The polyurethane waterproof coating weather resistance testing equipment according to claim 3, characterized in that: A support frame (302) is welded and fixed at the bottom of one side of the test frame (3), and sliders (303) are welded and fixed on both sides of the support frame (302). The sliders (303) are slidably engaged with the inner side of the slide groove (103), and the lifting cylinder (304) is engaged with the top of the support frame (302). A telescopic tube (305) is slidably engaged with the top of the lifting cylinder (304), and the telescopic tube (305) is engaged with the bottom of the ventilation grid (301).

6. The polyurethane waterproof coating weather resistance testing equipment according to claim 1, characterized in that: A support platform (306) is inserted through the top of the ventilation grid (301) and is clamped thereon; a humidity sensor (308) is inserted through the top of the support platform (306) and is clamped thereon; a sealant (309) is bonded and fixed to the bottom edge of the test paper (307); the sealant (309) is bonded to the top of the support platform (306); and the humidity sensor (308) is located on the inner side of the sealant (309).

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