A wear-resistant detection device for carpets

Abstract

The present invention discloses a wear-resistance detection device for carpets, specifically relating to the field of carpet production and detection technology, including a test bench assembly, a main test assembly, and a visual detection assembly. The test bench assembly includes a turntable and a base. The turntable is rotatably arranged on the base, and the turntable is used to install carpet samples. The main test assembly includes a main friction head, a transverse drive member, and a first lifting drive member. A heat dissipation cavity is provided at the center of the turntable, a heat conduction plate is installed on the heat dissipation cavity, and a circulating cooling liquid is provided in the heat dissipation cavity. The present invention provides a heat dissipation cavity in the turntable, so that cooling liquid circulates through the heat dissipation cavity, conducts heat to the carpet sample on the surface of the turntable, achieves a cooling effect, avoids the carpet sample friction area from being overly hot and causing test errors or even damage, and while ensuring detection efficiency, can also improve the accuracy of the test results and ensure the safety of the test process.

Description

Technical Field

[0001] The present invention relates to the technical field of carpet production detection, and more particularly to a wear resistance detection device for carpets. Background Art

[0002] Carpets are floor coverings made from natural or synthetic fibers such as cotton, linen, wool, silk, and straw yarn, knitted, tufted, or woven by hand or machine. They are a category of arts and crafts with a long and rich tradition worldwide. They are used to cover the floors of residences, guesthouses, conference rooms, entertainment venues, stadiums, exhibition halls, vehicles, ships, and airplanes, providing noise reduction, thermal insulation, decorative effects, improved foot comfort, slip prevention, and air pollution control.

[0003] Among them, no matter what kind of carpet, in order to obtain sufficient performance parameters and ensure product quality during its design, research and development and actual production process, the carpet needs to undergo a series of tests. Among them, since the main function of carpet is to be stepped on, the trampling performance of the carpet is the key to carpet quality. Since manual trampling testing is time-consuming and labor-intensive, the existing technology uses a friction head to continuously rub to simulate the friction damage to the carpet during the trampling process, and then uses mechanical equipment to drive the friction head to continuously rub to test the carpet's abrasion resistance, thereby judging the carpet's quality.

[0004] A complete carpet has a larger surface area and is less likely to be stepped on at its edges. Therefore, in actual testing, only the surface area of the carpet needs to be tested. However, to facilitate transportation and installation, as well as user-assembly, many modular carpets have appeared on the market. These modular carpets are composed of multiple independent small pieces or modules that can be joined together using fasteners, adhesives, or other connection methods to form a complete carpet. Due to their flexibility, ease of installation, and maintenance, modular carpets are becoming increasingly popular in commercial and residential environments.

[0005] Therefore, for assembled carpets, after they are assembled into a whole carpet, more edge seams are formed. During actual use, the probability of the carpet edge seams being stepped on is relatively high. Since assembled carpets need to ensure sufficient assembly accuracy, the edges of each single assembled carpet are precisely cut according to the specified trajectory. Assembled carpets mainly include a surface layer and a bottom layer (the surface layer is a textile material, and the bottom layer is a supporting structure for the surface layer fibers. It fixes the surface layer fibers together and provides additional stability. Synthetic materials such as polypropylene or polyester are usually used, and rubber pads can also be directly used as the bottom layer). Therefore, after cutting, the textile warp and weft threads of the material at the edge are in a broken state, and the mutual bonding strength between the edge materials is not high, which is relatively easy to be damaged. Therefore, on the actual assembled carpet, the carpet seams are easily damaged. Therefore, for this type of carpet, effective testing of the carpet edge is also required.

[0006] In the prior art, to simulate the state of carpets after assembly and laying, four carpets are usually butted together and placed on a test device. A friction head then performs a friction test on the joint area. However, each carpet is primarily adhered to the test table by its own adhesive, and the friction head is in continuous motion during the test. Since qualified products are of higher quality and can withstand heavier and greater friction, the main friction head undergoes a lot of relative movement during actual testing. Furthermore, to improve test efficiency, the friction head moves at a relatively high speed. Consequently, repeated friction can easily increase the temperature of the friction area, causing the adhesive to melt and lose viscosity. This can easily lead to warping of the carpet edges and corners, which is exacerbated by the movement of the friction head, affecting the actual test. Summary of the Invention

[0007] The present invention provides a wear resistance testing device for carpets, aiming to solve the problem that, in the prior art, when four carpets are butted together and a friction head is used to perform a friction test in the joint area, the friction head continuously moves during the test, causing friction and heating, resulting in a temperature increase, which deteriorates the adhesive layer and easily causes the corners of the carpets to curl, affecting the actual test.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a wear resistance testing device for carpets, comprising a test bench assembly, a main test assembly, and a visual inspection assembly, wherein the test bench assembly comprises a turntable and a base, wherein the turntable is rotatably disposed on the base, and the turntable is used to mount a carpet sample;

[0009] At least two groups of carpet samples are arranged on the turntable, the joints of the two groups of carpet samples are arranged collinearly with the rotation center point of the turntable, and the carpet samples are adhered to the turntable by an adhesive layer;

[0010] The main testing assembly includes a main friction head, a transverse driving member, and a first lifting driving member. The main friction head is arranged above the turntable. The first lifting driving member is used to drive the main friction head to move up and down above the turntable. The transverse driving member is used to drive the main friction head to move laterally on the surface of the carpet sample, and the above-mentioned transverse movement trajectory is set through the rotation center point of the turntable.

[0011] A heat dissipation cavity is provided at the center of the turntable, a heat conduction plate is installed on the heat dissipation cavity, and circulating cooling liquid is provided in the heat dissipation cavity.

[0012] In a preferred embodiment, a liquid inlet channel and a liquid outlet channel are provided inside the turntable, and both the liquid inlet channel and the liquid outlet channel are connected to the heat dissipation cavity. A slot is provided at the bottom of the turntable, and a liquid supply base is provided inside the base. The liquid supply base is rotatably inserted into the slot at the bottom of the turntable. An infusion tube and a liquid extraction tube are provided inside the liquid supply base, and the ports of the infusion tube and the liquid extraction tube extend to the side wall of the liquid supply base. The ports of the infusion tube and the liquid extraction tube are staggered in the height direction. A first annular groove and a second annular groove are provided on the inner wall of the slot of the turntable, and the first annular groove corresponds to the infusion tube, and the second annular groove corresponds to the liquid extraction tube. The liquid inlet channel is connected to the first annular groove, and the liquid outlet channel is connected to the second annular groove.

[0013] In a preferred embodiment, the infusion tube is connected to a low-temperature liquid source, which includes a low-temperature liquid cooling body storage tank and a liquid supply pump, which is used to provide low-temperature cooling liquid to the infusion tube and form a circulating cooling liquid in the heat dissipation cavity.

[0014] In a preferred embodiment, the transverse driving member and the base are installed together on the same frame, the main friction head is installed on the output end of the first lifting driving member, the first lifting driving member is installed on the output end of the transverse driving member, a rotating bearing is arranged between the turntable and the base, a turntable driver is installed in the turntable, a bevel gear group is arranged between the output end of the turntable driver and the turntable, and the turntable driver drives the turntable to rotate through the bevel gear group.

[0015] In a preferred embodiment, the visual detection component is disposed above the turntable, and the visual detection component includes a CCD visual recognition camera, which is used to capture and recognize images of the surface of the carpet sample on the turntable after testing.

[0016] In a preferred embodiment, the wear resistance detection device also includes an auxiliary test assembly, which includes an auxiliary friction head and a second lifting drive. The auxiliary friction head is arranged above the turntable, and the second lifting drive and the base are installed on the same frame. The auxiliary friction head is installed on the output end of the second lifting drive. The second lifting drive is used to drive the auxiliary friction head to move up and down, and the auxiliary friction head is arranged away from the rotation center point of the turntable.

[0017] In a preferred embodiment, pressure sensors are provided between the main friction head and the output end of the first lifting drive member, and between the auxiliary friction head and the output end of the second lifting drive. The two sets of pressure sensors are used to detect the pressure between the main friction head and the carpet sample, and between the auxiliary friction head and the carpet sample, respectively.

[0018] In a preferred embodiment, a thermal conductive pin is provided in the heat conducting plate, the bottom end of the thermal conductive pin is connected to a pin fixing member, the pin fixing member is in contact with the circulating cooling liquid in the heat dissipation cavity, the top end of the thermal conductive pin is inserted into the bottom layer, and the thermal conductive pin and the pin fixing member are both metal thermal conductive structures.

[0019] In a preferred embodiment, a guide cavity is provided inside the heat conducting plate, the bottom of the guide cavity is connected to the heat dissipation cavity, the pin fixing part is slidably installed in the guide cavity to form a piston structure, a pressure control valve is provided on the liquid extraction tube, the top of the heat conducting pin is tilted toward the rotation center point of the turntable, the guide cavity is an inclined guide structure, and the inclination direction of the guide cavity is the same as the inclination direction of the heat conducting pin.

[0020] In a preferred embodiment, the wear-resistant detection device also includes a cleaning component, which includes an air nozzle, a third lifting drive and an air nozzle rotation drive. The third lifting drive and the base are installed on the same frame. The air nozzle is connected to the output end of the third lifting drive through the air nozzle rotation drive. The third lifting drive is used to drive the air nozzle to lift and lower, and the air nozzle rotation drive is used to drive the air nozzle to flip. The air nozzle is connected to the air pump structure.

[0021] The beneficial effects of the present invention are as follows: the present invention can realistically simulate the actual use of spliced carpet samples, effectively judge the edge seam quality of carpet samples, and ensure the quality of carpet samples during research and development or production. In addition, by providing a heat dissipation cavity in the turntable, cooling liquid circulates through the heat dissipation cavity, heat is transferred to the carpet sample on the turntable surface, and a cooling effect is achieved, thereby avoiding excessive temperature in the friction area of the carpet sample, which may cause test errors or even damage. While ensuring detection efficiency, the accuracy of the test results can be improved, and the safety of the test process can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the test status of the main test component of the present invention.

[0024] Figure 3 It is a top view of the present invention.

[0025] Figure 4 It is a left view of the local structure of the present invention.

[0026] Figure 5 This is a schematic diagram of the rotating state of the turntable during testing of the present invention.

[0027] Figure 6 This is a schematic diagram of the state after the turntable rotates to a certain angle during the test of the present invention.

[0028] Figure 7 Schematic diagram of the overall structure of the test bench assembly of the present invention.

[0029] Figure 8 It is a schematic diagram of the cooperation state between the liquid supply base and the turntable of the present invention.

[0030] Figure 9 This is a top view of the turntable without the heat conducting plate installed.

[0031] Figure 10 This is a schematic diagram of the structure of the present invention after adding heat-conducting pins in the heat-conducting plate.

[0032] Figure 11 Schematic diagram of the distribution of pinholes on the heat conducting plate of the present invention.

[0033] Figure 12 This is a schematic diagram of the structure after the heat-conducting pins are separated from the bottom layer after the test of the present invention is completed.

[0034] Figure 13 This is a schematic diagram of blowing air to clean the main friction head during the test process of the present invention.

[0035] The accompanying drawings are marked as follows: 1. test bench assembly; 11. turntable; 111. first annular groove; 112. second annular groove; 12. base; 13. heat dissipation cavity; 131. liquid inlet channel; 132. liquid outlet channel; 14. heat conducting plate; 141. heat conducting pin; 142. guide cavity; 143. pin fixing member; 144. adjusting screw; 145. pulling wire; 15. turntable drive; 16. liquid supply base; 161. liquid infusion tube; 162. liquid extraction tube; 2. main test assembly; 21. main friction head; 22. transverse driving member; 23. first lifting driving member; 3. auxiliary test assembly; 31. auxiliary friction head; 32. second lifting driving member; 4. cleaning assembly; 41. air nozzle; 42. third lifting driving member; 43. air nozzle rotation driving member; 5. carpet sample; 51. bottom layer; 52. surface layer; 6. visual inspection assembly. DETAILED DESCRIPTION

[0036] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0037] Refer to the instruction manual Figures 1 to 13 A carpet wear resistance testing device includes a test bench assembly 1, a main test assembly 2, a secondary test assembly 3, a cleaning assembly 4, and a visual inspection assembly 6. The main test assembly 2 is a primary simulation test device, and the secondary test assembly 3 is an auxiliary test device. The test bench assembly 1 includes a turntable 11 and a base 12. The turntable 11 is rotatably mounted on the base 12. The turntable 11 is used to mount carpet samples 5. At least two groups of carpet samples 5 are arranged on the turntable 11. The seams of the two groups of carpet samples 5 are collinear with the rotation center of the turntable 11. Since the carpet samples 5 are normally laid in a grid pattern, the number of carpet samples 5 in this embodiment is preferably four. The seams of two adjacent groups of carpet samples 5 are collinear with the rotation center of the turntable 11. That is, the intersection of the four groups of seams is at the rotation center of the turntable 11, ensuring that the groups of carpet samples 5 are evenly distributed during actual testing. The carpet samples 5 are composed of a base layer 51 and a surface layer 52. The carpet samples 5 are adhered to the turntable 11 by an adhesive layer at the bottom of the base layer 51.

[0038] The main testing assembly 2 includes a main friction head 21, a transverse drive 22, and a first elevating drive 23. The transverse drive 22 and the base 12 are mounted on the same frame. The main friction head 21 is disposed above the turntable 11 and is mounted on the output end of the first elevating drive 23. The first elevating drive 23 is mounted on the output end of the transverse drive 22. The first elevating drive 23 is configured to drive the main friction head 21 to move upward and downward above the turntable 11 to move closer to or away from the carpet sample 5. The transverse drive 22 is configured to drive the main friction head 21 to move laterally across the surface of the carpet sample 5, with the aforementioned lateral movement trajectory passing through the rotation center of the turntable 11.

[0039] A heat dissipation cavity 13 is provided at the center of the turntable 11, and a heat conducting plate 14 is installed on the heat dissipation cavity 13. The top surface of the heat conducting plate 14 is aligned with the top surface of the turntable 11. A circulating cooling liquid is provided in the heat dissipation cavity 13. The circulating cooling liquid is preferably low-temperature water. The top surface of the turntable 11 and the top surface of the heat conducting plate 14 are both provided with seam markings, as shown in the attached manual. Figure 1 and Figure 11 As shown by the dotted lines in FIG, when installing each carpet sample 5, two adjacent seams correspond to the above seam marking lines respectively, ensuring that the seams between two adjacent groups of carpet samples 5 can be accurately collinear with the rotation center point of the turntable 11.

[0040] The visual inspection component 6 is arranged above the turntable 11. The visual inspection component 6 includes a CCD visual recognition camera. The CCD visual recognition camera is used to collect and recognize images of the surface conditions of each group of carpet samples 5 on the turntable 11 after the test. In this embodiment, the transverse driving member 22 needs to span the top of the turntable 11. Therefore, the visual inspection component 6 can be installed on the transverse driving member 22. For details, please refer to the attached manual. Figure 4 Since the visual recognition system is already a mature detection technology, this embodiment will not explain it in detail.

[0041] During actual testing, each group of carpet samples 5 is first mounted on the turntable 11 at a designated position, with the seam aligned with the rotation center of the turntable 11. The first elevating drive 23 is then controlled to lower the main friction head 21, bringing it into contact with the carpet sample 5 and applying the required pressure for testing. (A pressure sensor can be provided between the main friction head 21 and the first elevating drive 23 to determine the actual pressure between the main friction head 21 and the carpet sample 5, facilitating adjustment of the pressure by the first elevating drive 23.) The transverse drive 22 is then controlled to reciprocate the main friction head 21, generating friction on the surface of the carpet sample 5. By configuring the seams of each group of carpet samples 5 as described above, it is ensured that each movement of the main friction head 21 passes through the seam, thereby achieving preferential simulated testing of the seam.

[0042] Among them, this embodiment provides two test modes. One is to drive the main friction head 21 to reciprocate along the seam of the carpet sample 5. During the test, the turntable 11 is stationary, and the simulation test is mainly performed on the seam. The turntable 11 only rotates a certain angle periodically to adjust other seams to adapt to the main friction head 21. The other is to drive the main friction head 21 to move back and forth while continuously driving the turntable 11 to rotate (continuous rotation in the same direction or reciprocating rotation). In addition to simulating the seam, the main friction head 21 can also simulate other areas. Through the above-mentioned testing methods, the actual use of the spliced carpet sample 5 can be realistically simulated, the edge seam quality of the carpet sample 5 can be effectively judged, and the quality of the carpet sample 5 during the research and development or production process can be ensured.

[0043] In the above embodiment, refer to the attached specification. Figure 7 A rotating bearing is provided between the turntable 11 and the base 12, a turntable driver 15 is installed in the turntable 11, and a bevel gear set is provided between the output end of the turntable driver 15 and the turntable 11. The turntable driver 15 drives the turntable 11 to rotate through the bevel gear set.

[0044] Generally speaking, qualified products are of higher quality and can withstand heavier and greater friction. Therefore, during actual testing, the main friction head 21 undergoes more relative movement, and in order to improve test efficiency, the movement speed of the main friction head 21 is relatively fast. Therefore, repeated friction can easily increase the temperature of the friction area, causing the viscose to melt and reduce its viscosity, and even causing damage to the carpet sample 5 and the main friction head 21. Therefore, this embodiment provides a heat dissipation chamber 13 in the turntable 11, so that cooling liquid circulates through the heat dissipation chamber 13, and conducts heat to the carpet sample 5 on the surface of the turntable 11, thereby achieving a cooling effect, avoiding excessive temperature in the friction area of the carpet sample 5, which may cause test errors or even damage. While ensuring detection efficiency, it can also improve the accuracy of the test results and ensure the safety of the testing process.

[0045] In the above embodiment, since the main test assembly 2 is mainly used to test the seams of the carpet sample 5, for products with demand, it is also necessary to perform a conventional test on the carpet sample 5, that is, to use the auxiliary test assembly 3 to test the surface of the carpet sample 5, wherein, refer to the attached manual. Figure 3 and Figure 4 The auxiliary test assembly 3 includes an auxiliary friction head 31 and a second lifting drive 32. The auxiliary friction head 31 is arranged above the turntable 11. The second lifting drive 32 and the base 12 are installed on the same frame. The auxiliary friction head 31 is installed on the output end of the second lifting drive 32. The second lifting drive 32 is used to drive the auxiliary friction head 31 to move up and down to approach or move away from the carpet sample 5, and the auxiliary friction head 31 is arranged away from the rotation center point of the turntable 11. When the auxiliary test assembly 3 is used for testing, the auxiliary friction head 31 is controlled by the second lifting drive 32 to approach the carpet sample 5 and apply pressure to the carpet sample 5. The turntable 11 is driven to rotate by the turntable drive 15, so that the carpet sample 5 and the auxiliary friction head 31 generate relative friction movement to achieve friction simulation.

[0046] It should be noted that the auxiliary friction head 31 and the main friction head 21 have the same material and structure, and are both made of rubber material that simulates the material of the sole of a shoe. A pressure sensor is also provided between the auxiliary friction head 31 and the output end of the second lifting drive 32 to accurately control the pressure between the auxiliary friction head 31 and the carpet sample 5. The action area of the auxiliary friction head 31 is mainly a position on the surface of the carpet sample 5 away from the rotation center point of the turntable 11. Therefore, the actual simulation mainly simulates the wear of the bottom layer 51 on the surface of the carpet sample 5.

[0047] In the above embodiment, if the test is performed in a stationary or reciprocating manner with the turntable 11, a conventional circulation method can be used for the circulation of the cooling liquid in the heat dissipation chamber 13, with the help of a hose adapted to the reciprocating rotation of the turntable 11. However, for some test requirements, the reciprocating rotation amplitude of the turntable 11 is small, and the friction direction formed is variable, which affects the test effect. Therefore, in order to ensure the uniformity of the friction direction and obtain accurate test results, during actual testing, it is preferred to drive the turntable 11 to rotate continuously. At this time, the conventional circulation method cannot adapt to the rotating turntable 11. For this reason, refer to the attached manual. Figure 7 and Figure 8 , this embodiment also provides the following technical solutions, specifically, the interior of the turntable 11 is provided with a liquid inlet channel 131 and a liquid outlet channel 132, the liquid inlet channel 131 and the liquid outlet channel 132 are both connected to the heat dissipation cavity 13, the bottom of the turntable 11 is provided with a slot, the interior of the base 12 is provided with a liquid supply base 16, the liquid supply base 16 is rotatably inserted into the slot at the bottom of the turntable 11, the interior of the liquid supply base 16 is provided with a liquid infusion tube 161 and a liquid extraction tube 162, the ends of the liquid infusion tube 161 and the liquid extraction tube 162 are connected to the bottom of the turntable 11. The opening extends to the side wall of the liquid supply base 16, and the ports of the infusion tube 161 and the extraction tube 162 are staggered in the height direction. A first annular groove 111 and a second annular groove 112 are provided on the inner wall of the slot of the turntable 11. The first annular groove 111 is provided corresponding to the infusion tube 161, the second annular groove 112 is provided corresponding to the extraction tube 162, and the second annular groove 112 is provided corresponding to the extraction tube 162. With the help of the transfer docking of the first annular groove 111 and the second annular groove 112, the liquid inlet can be opened and closed no matter how the turntable 11 rotates. The channel 131 and the liquid infusion pipe 161 as well as the liquid outlet channel 132 and the liquid extraction pipe 162 can be interconnected. A rotating sealing structure (such as a rubber ring) is provided between the first annular groove 111 and the outer wall of the liquid supply base 16, and between the second annular groove 112 and the outer wall of the liquid extraction pipe 162. The liquid inlet channel 131 is connected to the first annular groove 111, and the liquid outlet channel 132 is connected to the second annular groove 112. The liquid infusion pipe 161 is connected to a low-temperature liquid source, which includes a low-temperature liquid coolant storage tank and a liquid supply pump. The liquid supply pump is used to provide low-temperature cooling liquid to the liquid infusion pipe 161, thereby continuously supplying low-temperature cooling liquid to the heat transfer plate 14 without affecting the rotation of the turntable 11. The cooling liquid that absorbs the heat generated by friction of the carpet sample 5 flows out through the liquid outlet channel 132 and the liquid extraction pipe 162, and dissipates heat and cools down. The cooling liquid after heat dissipation and cooling returns to the low-temperature liquid coolant storage tank for recycling, thereby forming a circulating cooling liquid in the heat dissipation cavity 13.

[0048] In the above embodiment, for some carpet products, in order to improve their own strength and quality, rubber or plastic materials are used to make the bottom layer 51, and some bottom layers 51 are thicker, and the bottom layer 51 itself has poor thermal conductivity, and the actual friction mainly acts on the surface layer 52, resulting in poor actual heat dissipation effect. Therefore, this embodiment also provides the following technical solutions, refer to the attached manual Figure 10 and Figure 11 A thermal conductive pin 141 is provided in the heat conducting plate 14. The bottom end of the thermal conductive pin 141 is connected to a pin fixing member 143. The pin fixing member 143 is in contact with the circulating cooling liquid in the heat dissipation cavity 13. The top end of the thermal conductive pin 141 is inserted into the bottom layer 51. The thermal conductive pin 141 and the pin fixing member 143 are preferably a metal thermal conductive structure, which can quickly conduct heat above the bottom layer 51 through the thermal conductive pin 141, thereby improving the cooling effect.

[0049] In addition, a guide cavity 142 is provided inside the heat conducting plate 14, the bottom of which is connected to the heat dissipation cavity 13, and the pin fixing part 143 is slidably installed in the guide cavity 142 to form a piston structure (a tiny air gap structure is provided in the space above the pin fixing part 143 in the guide cavity 142 corresponding to the space above the pin fixing part 143. When the pin fixing part 143 moves upward, the space above the pin fixing part 143 is exhausted to avoid excessive air pressure at the top. However, since the air gap structure is small, it is not demonstrated in this embodiment). A pressure control valve is provided on the liquid extraction pipe 162, and the top of the heat conducting pin 141 is tilted toward the rotation center point of the turntable 11. The guide cavity 142 is an inclined guide structure, and the tilt direction of the guide cavity 142 is the same as that of the heat conducting pin 141. In actual use, the carpet sample 5 is bonded to the turntable After the table 11 is placed on the platform 11, low-temperature cooling liquid is input into the heat dissipation chamber 13, and the output of the liquid extraction pipe 162 is controlled by the pressure control valve to ensure that the liquid in the heat dissipation chamber 13 has a certain pressure. This pressure pushes the pin fixing member 143 upward, thereby causing the heat-conducting pins 141 to be tilted and inserted into the bottom layer 51, thereby realizing automatic operation of the heat-conducting pins 141. The heat-conducting pins 141 are set at an angle. After the heat-conducting pins 141 are inserted into the bottom layer 51, they can also provide a positioning support for the bottom layer 51. When the main friction head 21 moves along the seam of the carpet sample 5 toward the surface of the carpet sample 5, it provides strong support for the carpet sample 5. Even if the adhesive layer at the bottom of the bottom layer 51 fails, the edge of the carpet sample 5 will not be turned up, further ensuring the safety of the testing process.

[0050] Furthermore, in the above embodiment, since the thickness of the bottom layer 51 of different carpet samples 5 is different during the actual test, and the thermal conductive pins 141 are not suitable for penetrating the bottom layer 51, this embodiment also provides a solution for controlling the extension amount of the thermal conductive pins 141. An adjusting screw 144 is provided at the bottom of the guide cavity 142. A threaded sleeve structure is fixedly installed at the bottom of the guide cavity 142 through a bracket structure. The guide cavity 142 passes through the threaded sleeve structure and is threadedly connected to the threaded sleeve structure. The adjusting screw 144 is connected to the pin fixing member 143 through a pulling wire 145, so that the adjusting screw 144 can be rotated in advance to adjust the height of the adjusting screw 144. By pulling the pin fixing member 143 with the help of the pulling wire 145, the maximum extension amount of the thermal conductive pins 141 is limited to adapt to the actual thickness of the bottom layer 51 during the test.

[0051] In the above embodiment, the heat generated by friction can be processed in time during the test process, so the overall temperature of each structure is relatively low during the test process. The continuous movement of the main friction head 21 can easily generate static electricity, causing the fiber structure worn off on the surface layer 52 to be easily adsorbed on the surface of the main friction head 21. If there are many adsorbed fiber structures, an obstruction layer will be formed at the bottom of the main friction head 21, which will affect the actual friction effect of the surface layer 52. For this reason, this embodiment also provides the following technical solutions. For details, please refer to the attached manual. Figure 1 and Figure 13 The cleaning component 4 includes an air nozzle 41, a third lifting driver 42 and an air nozzle rotation driver 43. The third lifting driver 42 and the base 12 are installed on the same frame. The air nozzle 41 is connected to the output end of the third lifting driver 42 through the air nozzle rotation driver 43. The third lifting driver 42 is used to drive the air nozzle 41 to rise and fall, and the air nozzle rotation driver 43 is used to drive the air nozzle 41 to flip. The air nozzle 41 is connected to the air pump structure. Therefore, during the actual test process, the main friction head 21 can be regularly driven to rise and the air nozzle 41 can be driven to flip to an angle corresponding to the bottom of the main friction head 21, so that air can be blown to the main friction head 21 by means of the air nozzle 41 to blow away the fiber structure on the surface of the main friction head 21 due to static electricity. The air source used by the main friction head 21 is a high-humidity air source, which helps to eliminate static electricity when blowing out. In addition, during normal testing, the air nozzle 41 can also be controlled to aim at the surface of the carpet sample 5, especially the friction area of the carpet sample 5, so that the worn and broken fibers of the surface layer 52 can be blown away from the friction area in time to reduce the impact on the test.

[0052] It should be noted that, for the auxiliary friction head 31, a driving scheme for the air nozzle 41 can be added to increase the degree of freedom of the air nozzle 41, so that the air nozzle 41 can also be aligned with the auxiliary friction head 31 for processing. The various types of lifting and moving drive devices used in this embodiment all adopt commonly used linear motors or cylinder hydraulic cylinders and other structures. The relevant rotation drive devices can adopt motors and other structures. In addition, the specific structure of each drive device will not be explained in detail in this embodiment.

[0053] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A wear resistance detection device for carpets, characterized by: The invention comprises a test bench assembly (1), a main test assembly (2) and a visual detection assembly (6); the test bench assembly (1) comprises a turntable (11) and a base (12); the turntable (11) is rotatably arranged on the base (12); and the turntable (11) is used to install a carpet sample (5); At least two groups of carpet samples (5) are arranged in the turntable (11), the joints of the two groups of carpet samples (5) are arranged collinearly with the rotation center point of the turntable (11), and the carpet samples (5) are adhered to the turntable (11) via an adhesive layer; The main test assembly (2) comprises a main friction head (21), a transverse driving member (22) and a first lifting driving member (23), wherein the main friction head (21) is arranged above the turntable (11), the first lifting driving member (23) is used to drive the main friction head (21) to move upward and downward above the turntable (11), and the transverse driving member (22) is used to drive the main friction head (21) to move laterally on the surface of the carpet sample (5), and the transverse movement trajectory is set through the rotation center point of the turntable (11); A heat dissipation cavity (13) is provided at the center of the turntable (11), a heat conduction plate (14) is installed on the heat dissipation cavity (13), and circulating cooling liquid is provided in the heat dissipation cavity (13); The turntable (11) is provided with a liquid inlet channel (131) and a liquid outlet channel (132) inside, and the liquid inlet channel (131) and the liquid outlet channel (132) are both communicated with the heat dissipation cavity (13). The bottom of the turntable (11) is provided with a slot, and the base (12) is provided with a liquid supply base (16) inside, and the liquid supply base (16) is rotatably inserted into the slot at the bottom of the turntable (11). The liquid supply base (16) is provided with a liquid infusion tube (161) and a liquid extraction tube (162) inside, and the liquid infusion tube (161) and the liquid extraction tube (162) are provided. ) extends to the side wall of the liquid supply base (16), the ports of the liquid infusion tube (161) and the liquid extraction tube (162) are staggered in the height direction, a first annular groove (111) and a second annular groove (112) are provided on the inner wall of the slot of the turntable (11), the first annular groove (111) is provided corresponding to the liquid infusion tube (161), the second annular groove (112) is provided corresponding to the liquid extraction tube (162), the liquid inlet channel (131) is communicated with the first annular groove (111), and the liquid outlet channel (132) is communicated with the second annular groove (112); A heat-conducting pin (141) is provided in the heat-conducting plate (14); the bottom end of the heat-conducting pin (141) is connected to a pin fixing piece (143); the pin fixing piece (143) is in contact with the circulating cooling liquid in the heat dissipation cavity (13); the top end of the heat-conducting pin (141) is inserted into the bottom layer (51); the heat-conducting pin (141) and the pin fixing piece (143) are both metal heat-conducting structures.

2. The wear resistance detection device for carpet according to claim 1, characterized in that: The liquid infusion pipe (161) is connected to a low-temperature liquid source, which includes a low-temperature liquid cooling body storage tank and a liquid supply pump. The liquid supply pump is used to provide low-temperature cooling liquid to the liquid infusion pipe (161) and form circulating cooling liquid in the heat dissipation cavity (13).

3. The wear resistance detection device for carpet according to claim 2, characterized in that: The transverse driving member (22) and the base (12) are installed together on the same frame, the main friction head (21) is installed on the output end of the first lifting driving member (23), and the first lifting driving member (23) is installed on the output end of the transverse driving member (22). A rotating bearing is provided between the turntable (11) and the base (12), a turntable driver (15) is installed in the turntable (11), and a bevel gear set is provided between the output end of the turntable driver (15) and the turntable (11), and the turntable driver (15) drives the turntable (11) to rotate through the bevel gear set.

4. The wear resistance detection device for carpet according to claim 3, characterized in that: The visual detection component (6) is arranged above the turntable (11), and the visual detection component (6) includes a CCD visual recognition camera, which is used to collect images and recognize the surface of the carpet sample (5) on the turntable (11) after testing.

5. The wear resistance detection device for carpet according to claim 4, characterized in that: The wear resistance detection device further comprises an auxiliary test assembly (3), the auxiliary test assembly (3) comprising an auxiliary friction head (31) and a second lifting drive (32), the auxiliary friction head (31) being arranged above the turntable (11), the second lifting drive (32) and the base (12) being mounted on the same frame, the auxiliary friction head (31) being mounted on the output end of the second lifting drive (32), the second lifting drive (32) being used for driving the auxiliary friction head (31) to move upward and downward, and the auxiliary friction head (31) being arranged away from the rotation center point of the turntable (11).

6. The wear resistance detection device for carpet according to claim 5, characterized in that: Pressure sensors are provided between the main friction head (21) and the output end of the first lifting drive (23), and between the auxiliary friction head (31) and the output end of the second lifting drive (32). The two groups of pressure sensors are used to detect the pressure between the main friction head (21) and the carpet sample (5), and between the auxiliary friction head (31) and the carpet sample (5), respectively.

7. The wear resistance detection device for carpet according to claim 6, characterized in that: A guide cavity (142) is provided inside the heat conducting plate (14), the bottom of the guide cavity (142) is communicated with the heat dissipation cavity (13), the pin fixing member (143) is slidably installed in the guide cavity (142) to form a piston structure, the liquid extraction pipe (162) is provided with a pressure control valve, the top of the heat conducting pin (141) is tilted toward the rotation center point of the turntable (11), the guide cavity (142) is an inclined guide structure, and the tilt direction of the guide cavity (142) is the same as the tilt direction of the heat conducting pin (141).

8. The wear resistance detection device for carpet according to claim 7, characterized in that: The wear-resistant detection device further comprises a cleaning assembly (4), wherein the cleaning assembly (4) comprises an air nozzle (41), a third lifting driver (42) and an air nozzle rotation driver (43), wherein the third lifting driver (42) and the base (12) are mounted on the same frame, wherein the air nozzle (41) is connected to the output end of the third lifting driver (42) via the air nozzle rotation driver (43), wherein the third lifting driver (42) is used to drive the air nozzle (41) to rise and fall, and the air nozzle rotation driver (43) is used to drive the air nozzle (41) to flip, and the air nozzle (41) is connected to an air pump structure.

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