Colored stone metal tile surface wear resistance testing equipment

Abstract

The present application relates to the technical field of material performance testing, and particularly relates to a surface wear resistance testing device for colorful stone metal tile, which comprises a frame serving as a bearing main body, a box body fixedly connected to the frame and constituting a testing chamber, a sample clamping frame rotatably connected in the box body and used for fixing the metal tile to be tested, a sample swing assembly provided on the sample clamping frame and used for driving the sample clamping frame to reciprocally deflect, and a sand cycle lifting assembly arranged in the box body and used for conveying the sand deposited at the bottom of the box body from a low place to a high place. The device synchronously makes the spray pipe and the sample clamping frame reciprocally deflect in combination through the airflow swing adjusting assembly and the sample swing assembly. The motion of the two is superposed to simulate the multi-angle and random impact of the sand, so that the defects of the single airflow direction and the fixed impact angle of the traditional device are overcome, and the simulation reality and accuracy of the wear resistance testing are significantly improved.

Description

Technical Field

[0001] This invention relates to the field of material performance testing technology, and in particular to a device for testing the abrasion resistance of colored stone metal tile surfaces. Background Technology

[0002] As a new type of roofing material, colored stone metal roofing tiles have been widely used in residential buildings, public buildings, and industrial plants due to their advantages such as light weight, high strength, corrosion resistance, rich colors, and convenient installation. Their surface is typically covered with a decorative protective layer composed of natural colored stone particles and acrylic resin adhesive, which not only enhances aesthetics but also improves UV resistance, waterproofing, and heat insulation.

[0003] However, in actual use, colored stone metal roofing sheets are exposed to complex outdoor environments for extended periods, especially in arid, semi-arid, or windy and sandy areas, where they are susceptible to the combined effects of wind, sand, rain, snow, hail, and temperature fluctuations. High-speed airflow carrying sand particles continuously impacts the tile surface from multiple angles and randomly, causing the colored stone coating to wear off and peel, exposing the underlying metal substrate. This leads to corrosion, leakage, and even structural failure, severely impacting the durability and lifespan of the roofing system. Currently, the assessment of the wear resistance of colored stone metal roofing sheets primarily employs standard laboratory methods, such as the Taber abrasion test, steel wool friction, or reciprocating sandpaper friction. While these methods can reflect the material's wear resistance under specific conditions, their wear mechanism is mainly sliding friction under vertical pressure, which differs significantly from the high-speed, multi-angle, and random particle erosion in real-world environments. Therefore, they cannot accurately represent the damaging process of outdoor wind and sand on the tile surface.

[0004] Therefore, there is an urgent need for a testing device that is closer to the actual use environment in order to improve the accuracy and reliability of material performance evaluation. Summary of the Invention

[0005] To overcome the shortcomings of existing wear resistance testing methods, which can only simulate sliding friction under vertical pressure and cannot truly reflect the high-speed, multi-angle particle erosion wear in a sandy environment, this invention provides a wear resistance testing device for colored stone metal tile surfaces.

[0006] The abrasion resistance testing equipment for colored stone metal tiles includes a frame as the main support; a housing fixed to the frame to form the test chamber; an inspection door located on the housing; a top cover detachably snapped onto the housing, its height exceeding that of the inspection door; a sample holder rotatably connected to the housing for fixing the metal tile to be tested, the sample holder being equipped with a sample swing assembly for driving its reciprocating deflection; a gravel circulation and lifting assembly located inside the housing for conveying gravel deposited at the bottom of the housing from a lower to a higher position; a high-pressure blower mounted on the frame for providing high-speed airflow; and two nozzles rotatably connected to the housing and connected to the outlet of the high-pressure blower, the nozzles being equipped with an airflow swing adjustment assembly for adjusting their deflection angle.

[0007] Furthermore, the front and rear sides of the sample holder are provided with slots that match the sides of the metal tile, and the metal tile is inserted into the slots by pushing it in.

[0008] Furthermore, the gravel circulation lifting assembly includes: two drive rollers, which are symmetrically rotated vertically and connected to the left side of the housing; a circulation belt, which is wound around the two drive rollers; thirty lifting plates, which are fixed to the outer surface of the circulation belt and evenly distributed, and each lifting plate has an inclined surface on its upper surface; and a drive motor, which is installed on the upper left side of the front of the housing, and whose output shaft is fixed to the upper drive roller.

[0009] Furthermore, the bottom plate of the box is inclined on the left and lower on the right. An inclined primary guide plate is fixed to the upper left part of the box. The primary guide plate is located directly below the top cover and is inclined on the left and lower on the right. A secondary guide slope is provided on the inner wall of the box at the corresponding position on the lower right of the primary guide plate. The secondary guide slope maintains a preset gap with the right side of the primary guide plate.

[0010] Furthermore, the two nozzles are vertically rotatably connected to the left interior of the housing; each nozzle has evenly distributed air nozzles in the horizontal direction, and the air nozzles on the upper nozzle and the lower nozzle are staggered in the vertical direction; the outlet of the high-pressure blower is connected to the two nozzles through the main pipe, and the two outlets of the main pipe are respectively inserted into the air inlet on the front side of each nozzle.

[0011] Furthermore, the airflow oscillation adjustment assembly includes: a crank disc, fixedly connected to the front and rear ends of the lower transmission roller; a transmission shaft, respectively fixedly connected to the rear end of each nozzle; a rocker arm, rotatably connected between the ends of the two transmission shafts; a first drive connecting rod, vertically arranged, with its upper end rotatably connected to the rocker arm and its lower end having a pin hole; and a pry pin, located at the eccentric position of the rear crank disc and inserted into the pin hole of the first drive connecting rod, forming a crank-rocker mechanism.

[0012] Furthermore, the sample swing assembly includes: fixed rails, which are respectively fixed to the front and rear inner walls of the housing; sliders, which are respectively slidably connected to each fixed rail in the horizontal direction; swing linkages, which are respectively rotatably connected to the front and rear sides of the sample holder, and the lower end of each swing linkage is rotatably connected to the slider on the corresponding side; second drive linkages, which are respectively rotatably connected to the left side of each slider, and each second drive linkage has a blind pin hole at its left end; and the actuating pins on each crank disc are respectively inserted into the blind pin holes of the second drive linkages on the corresponding side.

[0013] Furthermore, the main pipeline is equipped with an intermittent jet control assembly, which includes: a cleaning nozzle, fixed to the right wall of the housing, with its nozzle facing the inclined bottom plate of the housing; a branch pipeline, connecting the cleaning nozzle and the main pipeline; a switching valve, rotatably connected to the side of the main pipeline near the cleaning nozzle, the switching valve having an "r"-shaped vent hole; and a valve core drive assembly, located on the housing, for controlling the rotation of the switching valve.

[0014] Furthermore, the valve core drive assembly includes: a rocker arm fixed to the rear end of the switching valve; a fixed plate fixed to the left front side of the housing; a push rod slidably connected to the fixed plate in a vertical direction, the push rod and the fixed plate being elastically connected by a spring, the upper end of the push rod having a protrusion embedded in a groove opened on the left side of the rocker arm; a stroke adjustment assembly located at the lower part of the push rod; and a cam ring fixed to the front crank disc, located directly below the adjustment push rod.

[0015] Furthermore, the stroke adjustment assembly includes an adjusting push rod that is vertically slidably connected to the push rod, and a locking bolt that is threadedly connected to the lower part of the push rod, the inner end of which abuts against the adjusting push rod.

[0016] Beneficial effects: This equipment, by setting up an airflow swing adjustment component and a sample swing component, enables the nozzle and sample holder to synchronously perform compound reciprocating deflection motions during the test. The up-and-down reciprocating deflection of the nozzle realizes dynamic changes in airflow direction, and the up-and-down reciprocating deflection of the sample holder drives the metal tile to swing synchronously. The two movements are superimposed, so that the sand and gravel act on the tile surface in a more complex and natural multi-angle, random impact mode. This effectively overcomes the defects of traditional equipment with single airflow direction and fixed impact angle, and significantly improves the simulation reality and accuracy of wear resistance testing.

[0017] This equipment features a gravel circulation and lifting assembly within the chamber. A drive motor rotates the circulation belt and lifting plate, continuously transporting the gravel deposited at the bottom of the chamber from low to high. After being dispersed and slid down by the primary guide plate and the secondary guide ramp, the gravel is again carried by the high-pressure airflow to impact the tile surface. This structure enables automatic recycling of the gravel, eliminating the need for frequent manual addition of gravel and ensuring the continuity and stability of the testing process. It is suitable for long-term, high-volume wear resistance testing needs.

[0018] This equipment is equipped with an intermittent jet control component on the main pipeline. Through the linkage of the cam ring, adjusting push rod, and switching valve, two working modes can be flexibly switched according to the testing requirements: When it is necessary to simulate intermittent sandstorm weather, the switching valve periodically switches the passage, so that high-pressure gas is intermittently sprayed from the cleaning nozzle, which not only realizes the automatic cleaning of the inclined bottom plate of the chamber, but also simulates the intermittent windy environment; when it is necessary to simulate continuous sandstorm weather, the constant flow mode can be locked by adjusting the push rod and locking bolt. This structure has multiple uses for one valve, is easy to operate, and effectively improves the applicability and convenience of the equipment. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram from the first perspective of the present invention.

[0020] Figure 2 This is a three-dimensional structural schematic diagram from the second perspective of the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the components of the present invention, including the transmission roller, sample holder, and primary guide plate.

[0022] Figure 4 This is a three-dimensional structural diagram of the components of the present invention, including the high-pressure blower, main pipeline, and first drive linkage.

[0023] Figure 5 This is a three-dimensional structural diagram of the sample holder and metal tile of the present invention.

[0024] Figure 6 This is a three-dimensional structural diagram of the second drive linkage, fixed rail, and slider components of the present invention.

[0025] Figure 7 This is a three-dimensional structural diagram of the cleaning nozzle, push rod, and adjusting push rod of the present invention.

[0026] Figure 8 This is a three-dimensional structural cross-sectional view of the main pipeline, switching valve, rocker arm, and other components of the present invention.

[0027] Meaning of the reference numerals in the diagram: 101-Box body, 1011-Frame, 102-Inspection door, 1021-Top cover, 103-Drive roller, 104-Circulating belt, 105-Lifting plate, 106-Drive motor, 107-Main pipe, 108-High-pressure blower, 109-Sample holder, 110-Nozzle, 111-Crankshaft, 112-First drive connecting rod, 113-Rock arm, 114-Drive shaft, 115-Metal Components: 116-First-stage guide plate, 117-Second-stage guide slope, 201-Second drive linkage, 202-Fixed rail, 203-Slider, 204-Swing linkage, 301-Cleaning nozzle, 302-Branch pipe, 303-Fixed plate, 304-Push rod, 305-Spring, 306-Adjusting push rod, 307-Locking bolt, 308-Rock arm, 309-Switching valve, 310-Ventilation hole, 311-Cam ring. Detailed Implementation

[0028] The invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are illustrated. However, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0029] Example 1: Abrasion resistance testing equipment for 115 colored stone metal tile surface, such as... Figures 1-3 As shown, the device includes a frame 1011 serving as the main support structure, with a housing 101 fixedly attached to the frame 1011. This housing 101 constitutes the testing chamber of the equipment. An inspection door 102 is rotatably connected to the upper right side of the housing 101 for routine maintenance and observation. A top cover 1021 is detachably snapped onto the upper left side of the housing 101. The height of the top cover 1021 is higher than that of the inspection door 102 to facilitate the installation and removal of internal components.

[0030] An inclined sample holder 109 is rotatably connected inside the housing 101. This sample holder 109 is used to fix the metal tile 115 to be tested. Figure 5 As shown, specifically, the front and rear sides of the sample holder 109 have slots that match the sides of the metal tile 115. The metal tile 115 is inserted into the slots to achieve stable clamping. To simulate a multi-angle impact environment, the sample holder 109 is also equipped with a sample swing assembly to drive it to reciprocate around an axis.

[0031] To simulate a continuous sandstorm environment, a gravel circulation and lifting assembly is installed inside the housing 101. For example... Figure 3As shown, specifically, two drive rollers 103 are symmetrically rotated vertically on the left side of the housing 101, and a circulation belt 104 is wound around the two drive rollers 103. A plurality of evenly distributed lifting plates 105 are fixed to the outer surface of the circulation belt 104. In this embodiment, there are thirty lifting plates 105. The upper surface of each lifting plate 105 is provided with an inclined surface, used to transport the sand and gravel deposited at the bottom of the housing 101 from a lower position to a higher position when the circulation belt 104 is running. A drive motor 106 is installed on the upper left front side of the housing 101, and its output shaft is fixed to the drive rollers 103 on the upper side via a coupling, providing power for the sand and gravel circulation.

[0032] To facilitate the collection of gravel, the bottom plate of the box 101 is inclined from left to right. An inclined primary guide plate 116 is fixed to the upper left part of the box 101. This primary guide plate 116 is located directly below the top cover 1021 and is inclined from left to right to guide the gravel lifted by the lifting plate 105 to slide downwards and to the right. A secondary guide slope 117 is provided on the inner wall of the box 101 at the corresponding position on the lower right side of the primary guide plate 116. A preset gap is maintained between the secondary guide slope 117 and the right side of the primary guide plate 116, together forming a channel for the gravel to slide down.

[0033] like Figure 3 and Figure 4 As shown, a high-pressure blower 108 is mounted on the floor plate of the frame 1011 to provide high-speed airflow. The outlet of the high-pressure blower 108 is connected to two vertically arranged nozzles 110 via a main pipe 107. The two nozzles 110 are rotatably connected to the left interior of the housing 101. Specifically, the two outlets of the main pipe 107 are respectively inserted into the air inlets on the front side of each nozzle 110, allowing the nozzles 110 to rotate relative to the main pipe 107 within a certain angle.

[0034] Each nozzle 110 has evenly distributed air nozzles along the horizontal direction, and the air nozzles on the upper nozzle 110 and the air nozzles on the lower nozzle 110 are staggered vertically. The purpose of this structure is that when the two nozzles 110 eject high-pressure gas, the airflow acts on the area of ​​the left outer surface of the metal tile 115 in an intermittent manner, thereby simulating a more natural random impact effect of wind and sand.

[0035] To achieve dynamic changes in airflow angle, crank discs 111 are fixedly connected to both ends of the lower transmission roller 103. An airflow oscillation adjustment assembly is provided on the rear crank disc 111. This assembly includes a transmission shaft 114 fixedly connected to the rear end of each nozzle 110. A rocker arm 113 is rotatably connected between the ends of the two transmission shafts 114. A vertically arranged first drive connecting rod 112 is rotatably connected to the rocker arm 113. An actuating pin is provided at the eccentric position of each crank disc 111. A pin hole is opened at the lower end of the first drive connecting rod 112, and the actuating pin on the rear crank disc 111 is inserted into this pin hole, forming a crank-rocker mechanism.

[0036] When the drive motor 106 drives the lower transmission roller 103 and crank disk 111 to rotate via the circulating belt 104, the crank disk 111 drives the rocker arm 113 to move up and down reciprocally via the first drive connecting rod 112, which in turn drives the two nozzles 110 to reciprocate up and down synchronously via the transmission shaft 114. During this process, the sand and gravel sliding down from the secondary guide slope 117 pass through the interlaced nozzle area under the action of gravity, are carried by the high-speed airflow and impact the surface of the metal tile 115 at changing angles, simulating a multi-angle, dynamic wind and sand erosion environment.

[0037] To further increase the randomness and complexity of the impact, the sample holder 109 is equipped with a sample swing assembly. For example... Figure 6 As shown, the assembly includes fixed rails 202 respectively fixed to the front and rear inner walls of the housing 101, and a slider 203 is slidably connected in the horizontal direction within each fixed rail 202. Swinging rods 204 are rotatably connected to both the front and rear sides of the sample holder 109, and the lower end of each swinging rod 204 is rotatably connected to the corresponding slider 203. A second drive rod 201 is rotatably connected to the left side of each slider 203, and a blind pin hole is opened at the left end of each second drive rod 201. A lever pin on each crank disc 111 is inserted into the blind pin hole of the corresponding second drive rod 201.

[0038] When the lower drive roller 103 drives the crank disk 111 to rotate, the crank disk 111 drives the slider 203 to move back and forth along the fixed rail 202 via the second drive connecting rod 201. The slider 203 then drives the sample holder 109 and the metal tile 115 on it to reciprocate up and down via the swing connecting rod 204. This motion is superimposed with the synchronous reciprocating deflection of the nozzle 110 to form a compound motion, which makes the sand and gravel act on the surface of the metal tile 115 in a more complex and natural multi-angle, random impact mode, which significantly improves the accuracy and simulation realism of the test.

[0039] To simulate intermittent sandstorms and achieve targeted cleaning of sand and gravel inside the housing 101, an intermittent jet control assembly is installed on the main pipe 107. For example... Figure 7 and Figure 8As shown, the component includes a cleaning nozzle 301 fixed to the right wall of the housing 101, with its nozzle facing the inclined bottom plate of the housing 101. The cleaning nozzle 301 is connected to the main pipe 107 via a branch pipe 302. A switching valve 309 is rotatably connected to the main pipe 107 on the side near the cleaning nozzle 301. The switching valve 309 has an "r"-shaped vent hole 310. In the initial state, the main pipe 107 is connected to the spray pipe 110 and disconnected from the branch pipe 302; when the switching valve 309 deflects to a preset angle, the main pipe 107 is connected to the branch pipe 302 and disconnected from the spray pipe 110.

[0040] The housing 101 is equipped with a valve core drive assembly for controlling the rotation of the switching valve 309. This assembly includes a rocker arm 308 fixed to the rear end of the switching valve 309, and a fixing plate 303 fixed to the front left side of the housing 101. A push rod 304 is vertically slidably connected within the fixing plate 303, and the push rod 304 is elastically connected to the fixing plate 303 via a spring 305. The upper end of the push rod 304 has a protrusion, and the left side of the rocker arm 308 has a sliding groove in which the protrusion is embedded, forming a cam-driven structure.

[0041] The lower part of the push rod 304 is provided with a stroke adjustment assembly, specifically including an adjusting push rod 306 that is vertically slidably connected to the push rod 304, and a locking bolt 307 that is threadedly connected to the lower part of the push rod 304. The inner end of the locking bolt 307 abuts against the adjusting push rod 306 to lock the extension length of the adjusting push rod 306. A cam ring 311 is fixedly connected to the front crank disc 111, and the cam ring 311 is located directly below the adjusting push rod 306.

[0042] Working principle: This equipment is used to simulate arid, semi-arid and windy sandy areas, where high-speed airflow carries sand and dust particles and continuously impacts the surface of colored stone metal tile 115 from multiple angles and randomly, in order to test its wear resistance.

[0043] Open the inspection door 102 by flipping it open, push the metal tile 115 to be tested into the sample holder 109, ensuring its outer surface faces left, and secure it firmly using the slots on both the front and rear sides. After closing the inspection door 102, remove the top cover 1021 and pour an appropriate amount of gravel into the chamber 101. The gravel slides down the primary guide plate 116 to the secondary guide slope 117, and continues to slide down under gravity, forming a dispersed falling path.

[0044] The high-pressure blower 108 is activated, and high-pressure gas enters the two nozzles 110 through the main pipe 107, and is sprayed onto the outer left side surface of the metal tile 115 through the nozzles. Gravel is carried by the high-speed airflow during its fall, impacting the surface of the metal tile 115, simulating a wind and sand erosion environment under constant wind direction.

[0045] The drive motor 106 is started, which drives the upper transmission roller 103 to rotate, and synchronously drives the lower transmission roller 103 to rotate through the circulation belt 104. The circulation belt 104 drives the lifting plate 105 to rotate, which transports the sand and gravel deposited at the bottom of the box 101 from low to high. The sand and gravel slide down the slope of the lifting plate 105 at the highest point to the first-stage guide plate 116, and then disperses and falls down through the second-stage guide slope 117, realizing the recycling of sand and gravel.

[0046] When the lower drive roller 103 rotates, it drives the crank disc 111 fixed at both ends to rotate synchronously.

[0047] The rear crank disc 111 drives the rocker arm 113 to move up and down reciprocally via the first drive connecting rod 112, which in turn drives the two nozzles 110 to rotate up and down synchronously via the transmission shaft 114, causing the airflow direction to change dynamically and simulating multi-angle, non-directional wind and sand impact.

[0048] The crank discs 111 on the front and rear sides drive the slider 203 to move back and forth along the fixed rail 202 via the second drive linkage 201, and drive the sample holder 109 and the metal tile 115 on it to deflect up and down via the swing linkage 204.

[0049] The reciprocating deflection of the nozzle 110 and the reciprocating deflection of the metal tile 115 superimpose each other to form a compound motion, which causes the sand and gravel to act on the surface of the metal tile 115 in a more complex and natural multi-angle, random impact mode, significantly improving the authenticity and accuracy of the test.

[0050] When simulating intermittent sandstorms, the bottom surface of the adjusting push rod 306 is kept in contact with the cam ring 311. The crank disc 111 drives the cam ring 311 to rotate. When the protruding part of the cam ring 311 contacts the adjusting push rod 306, it pushes the adjusting push rod 306 upward, causing the push rod 304 to move upward and stretch the spring 305. The protrusion at the upper end of the push rod 304 drives the switching valve 309 to deflect through the rocker arm 308, so that the main pipe 107 is connected to the branch pipe 302 and disconnected from the nozzle 110.

[0051] High-pressure gas is sprayed through cleaning nozzle 301 onto the inclined bottom plate of housing 101, sweeping the deposited sand and gravel downwards and to the bottom of circulation belt 104. This cleans the inside of housing 101 and facilitates the lifting plate 105 to raise the sand and gravel again. When the protruding part of cam ring 311 disengages from adjusting push rod 306, spring 305 returns to its original position, push rod 304 moves downwards, switching valve 309 deflects in the opposite direction, restoring the passage between main pipe 107 and nozzle 110, completing one intermittent cycle.

[0052] When simulating continuous sandstorm weather, loosen the locking bolt 307, push the adjusting rod 306 upwards until its bottom surface is sufficiently far from the cam ring 311, so that the protruding part of the cam ring 311 cannot contact the adjusting rod 306 when it rotates, and then tighten the locking bolt 307 to fix it. At this time, the switching valve 309 keeps the main pipeline 107 and the nozzle 110 open, and the equipment continuously performs sandblasting tests.

[0053] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. Abrasion resistance testing equipment for colored stone metal tile surface, including a frame (1011) as the main support; The housing (101) is fixed to the frame (1011) to form a test chamber; Inspection door (102) is installed on the enclosure (101); The top cover (1021) is detachably snapped onto the housing (101), and its height is higher than that of the access door (102). Its characteristics are, It also includes: a sample holder (109), which is rotatably connected to the box (101) for fixing the metal tile (115) to be tested, and a sample swing assembly for driving its reciprocating deflection on the sample holder (109). The gravel circulation lifting assembly is installed inside the box (101) and is used to transport the gravel deposited at the bottom of the box (101) from a low place to a high place; A high-pressure blower (108) is mounted on a frame (1011) to provide high-speed airflow; Two nozzles (110) are rotatably connected inside the housing (101) and connected to the outlet of the high-pressure blower (108). The nozzles (110) are equipped with airflow swing adjustment components for adjusting their deflection angle.

2. The abrasion resistance testing equipment for colored stone metal tile surface according to claim 1, characterized in that, The front and rear sides of the sample holder (109) are provided with slots that match the sides of the metal tile (115). The metal tile (115) is inserted into the slots by pushing it in.

3. The abrasion resistance testing equipment for colored stone metal tile surface according to claim 1, characterized in that, The gravel circulation lifting assembly includes: Two drive rollers (103) are symmetrically connected to the left side of the housing (101) in a vertical rotational manner; A circulating belt (104) is wound around two drive rollers (103); Thirty lifting plates (105) are fixed to the outer surface of the circulating belt (104) and evenly distributed. Each lifting plate (105) has an inclined surface on its upper surface. The drive motor (106) is installed on the upper left side of the front of the housing (101), and its output shaft is fixedly connected to the transmission roller (103) on the upper side.

4. The abrasion resistance testing equipment for colored stone metal tile surface according to claim 3, characterized in that, The bottom plate of the box (101) is inclined on the left and lower on the right. An inclined primary guide plate (116) is fixed to the upper left part of the box (101). The primary guide plate (116) is located directly below the top cover (1021) and is inclined on the left and lower on the right. A secondary guide slope (117) is provided on the inner wall of the box (101) at the corresponding position on the lower right of the primary guide plate (116). The secondary guide slope (117) and the right side of the primary guide plate (116) maintain a preset gap.

5. The abrasion resistance testing equipment for colored stone metal tile surface according to claim 4, characterized in that, Two nozzles (110) are vertically rotatably connected to the left interior of the housing (101); each nozzle (110) is provided with uniformly distributed air nozzles in the horizontal direction, and the air nozzles on the upper nozzle (110) and the air nozzles on the lower nozzle (110) are staggered in the vertical direction; the air outlet of the high-pressure blower (108) is connected to the two nozzles (110) through the main pipe (107), and the two air outlets of the main pipe (107) are respectively inserted into the air inlet on the front side of each nozzle (110).

6. The abrasion resistance testing equipment for colored stone metal tile surface according to claim 5, characterized in that, The airflow oscillation adjustment component includes: The crank disc (111) is fixed to the front and rear ends of the lower transmission roller (103); The drive shaft (114) is fixedly connected to the rear end of each nozzle (110); The rocker arm (113) is rotatably connected between the ends of the two drive shafts (114); The first drive link (112) is set vertically, its upper end is rotatably connected to the rocker arm (113), and its lower end has a pin hole; The actuating pin is located at an eccentric position on the rear crank disc (111) and inserted into the pin hole of the first drive connecting rod (112) to form a crank rocker mechanism.

7. The abrasion resistance testing equipment for colored stone metal tile surface according to claim 6, characterized in that, The sample oscillation assembly includes: Fixed rails (202) are respectively fixed to the front and rear inner walls of the box (101); The sliders (203) are slidably connected to each fixed rail (202) in the horizontal direction; The swing linkage (204) is rotatably connected to the front and rear sides of the sample holder (109), and the lower end of each swing linkage (204) is rotatably connected to the corresponding slider (203); The second drive link (201) is rotatably connected to the left side of each slider (203), and each second drive link (201) has a blind pin hole at its left end. The actuation pins on each crank disc (111) are inserted into the blind pin holes of the second drive link (201) on the corresponding side.

8. The abrasion resistance testing equipment for colored stone metal tile surface according to claim 7, characterized in that, An intermittent jet control assembly is provided on the main pipe (107), the assembly including: The cleaning nozzle (301) is fixed to the right wall of the housing (101), with its nozzle facing the inclined bottom plate of the housing (101); Branch pipe (302) connects the cleaning nozzle (301) to the main pipe (107); A switching valve (309) is rotatably connected to the side of the main pipe (107) near the cleaning nozzle (301). The switching valve (309) has an "r"-shaped vent hole (310). A valve core drive assembly is mounted on the housing (101) and is used to control the rotation of the switching valve (309).

9. The abrasion resistance testing equipment for colored stone metal tile surface according to claim 8, characterized in that, The valve core drive assembly includes: The rocker arm (308) is fixed to the rear end of the switching valve (309); The fixing plate (303) is fixed to the front left side of the box body (101); The push rod (304) is vertically slidably connected to the fixed plate (303). The push rod (304) and the fixed plate (303) are elastically connected by a spring (305). The upper end of the push rod (304) is provided with a protrusion, which is embedded in the groove opened on the left side of the rocker arm (308). The stroke adjustment component is located at the lower part of the push rod (304); The cam ring (311) is fixed to the front crank plate (111) and is located directly below the adjusting push rod (306).

10. The abrasion resistance testing equipment for colored stone metal tile surface according to claim 9, characterized in that, The stroke adjustment assembly includes an adjustment push rod (306) that is vertically slidably connected to the push rod (304), and a locking bolt (307) that is threadedly connected to the lower part of the push rod (304), the inner end of which abuts against the adjustment push rod (306).

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