Scratch resistance testing device and scratch resistance testing method for building thermal insulation decorative board

Abstract

The invention discloses a scratch resistance testing device and a scratch resistance testing method for a building thermal insulation decorative plate. The scratch resistance testing device for the building thermal insulation decorative plate comprises a workbench, a supporting device, a scratching device and a moving device, the scratching device is arranged in the supporting frame; a moving frame of the moving device is fixedly connected to the workbench, a rotating roller and a moving belt are arranged on the moving frame, and the rotating roller can drive the moving belt to move synchronously; a fixing device is arranged on the movable frame, and a flattening device is arranged on the supporting frame. The scratching device comprises a scratching frame and a scratching head, the scratching head is vertically installed on the scratching frame in a sliding mode, a driving air cylinder is arranged between the scratching frame and the scratching head, the output end of the driving air cylinder is fixedly connected with the scratching head, the end, away from the scratching head, of the driving air cylinder is fixedly connected with the scratching frame, and the axis of the driving air cylinder is obliquely arranged. The scratch resistance testing device and the scratch resistance testing method for the building thermal insulation decorative board have the effect of reducing the probability that the scratching head is clamped in the test piece.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of building material detection, more specifically, relates to a building thermal insulation decorative plate scratch resistance testing device and testing method. BACKGROUND

[0002] In the development process of building thermal insulation decorative plate materials, it is necessary to test the scratch resistance of the building thermal insulation decorative plate, and evaluate the scratch resistance performance according to the test scratches generated. The existing scratch test of the building thermal insulation decorative plate usually clamps and fixes the building thermal insulation decorative plate, then presses the scratch head on the surface of the building thermal insulation decorative plate with a certain pressure, and pushes the scratch head horizontally relative to the building thermal insulation decorative plate, so as to generate test scratches on the surface of the building thermal insulation decorative plate. The above-mentioned scratch resistance test method needs to fix the building thermal insulation decorative plate first, and then move the scratch head relative to the building thermal insulation decorative plate. When it comes to continuous scratch resistance test of multiple building thermal insulation decorative plate samples, the building thermal insulation decorative plate needs to be repeatedly disassembled and assembled, which seriously affects the test efficiency. Moreover, the pressure of the scratch head on the building thermal insulation decorative plate cannot be conveniently adjusted in the process of pushing the scratch head, so that dynamic scratch resistance test cannot be realized.

[0003] The Chinese invention patent with the publication number CN118518462A and the name of building thermal insulation decorative plate scratch resistance testing device and testing method discloses that the application relates to the technical field of scratch test, and specifically discloses a building thermal insulation decorative plate scratch resistance testing device and testing method. The building thermal insulation decorative plate scratch resistance testing device comprises a scratch mechanism and a push plate mechanism. The scratch piece support in the scratch mechanism descends, drives the scratch piece to contact the upper end face of the decorative plate, applies gradually increasing pressure on the decorative plate, drives the push plate piece in the push plate mechanism to drive the decorative plate and the scratch piece to slide relative to each other in the horizontal direction, so as to generate test scratches on the upper end face of the decorative plate. The traditional scratch resistance test process is simplified, continuous operation of the scratch resistance test can be carried out, and the test efficiency is high. In addition, during the scratch test, the pressure applied by the scratch piece on the decorative plate is gradually increased, so that dynamic scratch resistance test of the decorative plate with different gradients can be carried out.

[0004] However, because the building thermal insulation decorative plate is adjusted in pressure, the building thermal insulation device plate and the scratch head abut each other, the scratch head remains stationary, and the building thermal insulation device plate is moved by driving the belt. When the pressure between the scratch head and the building thermal insulation plate is too large, the scratch head is easy to embed into the building thermal insulation plate. The inventor believes that in the prior art and the comparative document, the main improvement point for the scratch resistance test of the building thermal insulation decorative plate is the pressure adjustment of the scratch resistance test, and there is no protection for the aspects of stable transmission and guarantee of the overall quality of the detection and suppression of plate deformation. SUMMARY

[0005] It is an object of the present application to reduce the probability of the chisel being stuck in the test piece.

[0006] In view of the deficiencies of the prior art, the present application aims to provide a building thermal insulation decorative plate scratch resistance testing device and testing method.

[0007] To achieve the foregoing objects, the present application employs the technical scheme comprising a workbench, a supporting device, a scratching device and a moving device; the supporting frame of the supporting device is fixedly connected with the workbench; the scratching device is arranged in the supporting frame and can be lifted in the vertical direction relative to the supporting frame; the moving frame of the moving device is fixedly connected with the workbench, the moving frame is provided with a rotating roller and a moving belt, the rotating roller can drive the moving belt to move synchronously; the moving frame is provided with a fixing device for fixing the test piece and adapting to test pieces of different widths, and the supporting frame is provided with a flattening device for preventing the test piece from being slightly deformed and reducing the probability of the chisel being stuck in the test piece; the scratching device comprises a scratching frame and a chisel, the chisel is vertically slidably installed in the scratching frame, a driving cylinder is arranged between the scratching frame and the chisel, the output end of the driving cylinder is fixedly connected with the chisel, the end of the driving cylinder away from the chisel is fixedly connected with the scratching frame, the axis of the driving cylinder is obliquely arranged, the output shaft of the driving cylinder is used to drive the chisel to move in the direction of approaching the test piece to realize the scratch test, the output shaft of the driving cylinder is used to move to realize the stepwise force detection of the chisel, and the oblique arrangement can reduce the vertical force acting on the test piece and reduce the probability of the chisel being stuck in the test piece.

[0008] Optionally, the moving frame is provided with a servo motor corresponding to the position of any rotating roller, the output shaft of the servo motor is coaxially arranged with the rotating roller and penetrates through the moving frame, and the output shaft of the servo motor is fixedly connected with the rotating roller to drive the rotating roller to drive the moving belt to move synchronously.

[0009] Optionally, the fixing device comprises a fixing frame, the fixing frame is arranged along the conveying direction of the moving belt, one end of the fixing frame is provided with a shielding plate, the shielding plate is slidingly connected with the fixing frame and can slide in the vertical direction; an inclined shielding surface with an inclination angle of 45° is formed on the lower surface of the shielding plate, the lower end point of the shielding plate is the lower point of the shielding surface, the shielding surface is obliquely arranged in the direction away from the fixing frame, the vertical projection length of the higher point of the shielding surface is greater than the thickness of the test piece, and when the test piece is pushed into the fixing frame, the test piece abuts against the shielding surface to push the shielding plate upward, and after the test piece is completely entered, the shielding plate falls down to abut against the test piece.

[0010] Optionally, the fixing frame is provided with a limiting block corresponding to the other side of the shielding plate, the limiting block is vertically arranged, a plurality of limiting springs are arranged between the limiting block and the fixing frame and are arrayed along the length direction of the limiting block, the axis of the limiting spring is horizontally arranged, one end of the limiting spring is fixedly connected with the limiting block, and the other end of the limiting spring is fixedly connected with the fixing frame; the height of the fixing frame is lower than the height of the test piece, so that the limiting block is slid along the horizontal direction to compress the limiting spring according to the width of the test piece, and the width limitation of the test piece with different widths is realized.

[0011] Optionally, the workbench is provided with a placing table corresponding to one side of the fixing device, the upper surface of the placing table is in the same plane as the moving belt, so as to facilitate the workers to push the test piece from the placing table to the moving belt.

[0012] Optionally, the flattening device comprises a flattening rod, the flattening rod is vertically arranged, and the length direction of the flattening rod is the same as the conveying direction of the moving belt; a roller is arranged at the end of the flattening rod away from the flattening rod, the axis of the roller is horizontally arranged, the rolling direction of the roller is the same as the conveying direction of the moving belt, the roller is in abutment with the test plate, and the roller is used for limiting the horizontal degree of the test piece and preventing the test piece from being slightly deformed due to the excessive sliding force of the scribe head.

[0013] Optionally, a sliding block is arranged on the flattening rod, the sliding block is in sliding connection with the flattening rod and can slide along the length direction of the flattening rod; a limiting block is arranged on the side of the sliding block away from the flattening rod, the limiting block is in rotary connection with the sliding block, a limiting groove is formed in the limiting block, the drive cylinder can be inserted into the limiting groove, the limiting block can rotate relative to the sliding block, the axis of the limiting groove is in the same axis as the axis of the drive cylinder, and different scribe devices are matched according to the relative sliding of the sliding block and the flattening rod.

[0014] Optionally, a level is arranged on the flattening rod, and a plurality of flattening rods are arrayed on the flattening rod, so as to keep the horizontal degree of the flattening rod and further ensure the horizontal degree of the test piece.

[0015] Optionally, the method comprises the following steps: S101: The test piece is placed and fixed: the building thermal insulation decorative plate to be tested is horizontally placed on the placing table beside the workbench, so as to ensure that the surface of the plate is flat; the plate is manually pushed, so that one end of the plate contacts the moving belt of the moving device, the edge of the plate contacts the shielding plate of the fixing device, the shielding plate is continuously pressed to vertically slide along the fixing frame, until the plate is completely in the fixing frame; the shielding plate automatically falls due to gravity, one side of the shielding plate is in abutment with the side surface of the plate, the other side of the plate is in contact with the limiting block, the limiting block is horizontally compressed after being pressed, the spring reaction force pushes the limiting block to tightly adhere to the plate, and the bidirectional fixation of the plate in the width direction is realized.

[0016] S201: Scratch device calibration: adjust the flattening device, slide the sliding block on the flattening rod, move the limiting block to the position aligned with the axis of the scratch device driving cylinder; rotate the limiting block to make the axis of the limiting groove coincide with the axis of the driving cylinder, complete the connection of the scratch device and the flattening device; observe the level on the flattening rod to ensure that the overall flattening rod is in a horizontal state to ensure the horizontal degree of the plate during the test.

[0017] S301: Scratch test execution: start the servo motor of the moving device to drive the rotating roller to operate the moving belt, conveying the fixed plate to the position below the scratch device; start the driving cylinder of the scratch device, the inclined output shaft of which pushes the scratch head to move vertically downward until the scratch head contacts the surface of the plate; the driving cylinder continuously outputs power, the scratch head applies pressure to the surface of the plate and produces a scratch, the output stroke of the driving cylinder is controlled to realize the stepwise force loading and simulate the scratch effect of different intensities; after the test is completed, the driving cylinder drives the scratch head to reset, and the moving device conveys the plate back to the initial position and removes the test piece. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art without creating laborious work.

[0019] Figure 1 It is a whole schematic view of a scratch-resistant test device for building thermal insulation decorative plate in the present application. Figure 2 It is a sectional view of a scratch-resistant test device for building thermal insulation decorative plate in the present application. Figure 3 It is a sectional view of a protruding fixing device of a scratch-resistant test device for building thermal insulation decorative plate in the present application. Figure 4 It is a partial schematic view of a protruding flattening device of a scratch-resistant test device for building thermal insulation decorative plate in the present application.

[0020] Reference signs: 1, workbench; 2, support device; 3, scratch device; 4, moving device; 21, support frame; 31, scratch frame; 32, scratch head; 33, driving cylinder; 4, moving frame; 41, rotating roller; 42, moving belt; 43, servo motor; 5, fixing device; 51, fixing frame; 52, shielding plate; 53, shielding slope; 54, width limiting block; 55, width limiting spring; 56, placing table; 6, flattening device; 61, flattening rod; 62, roller; 63, sliding block; 64, limiting block; 65, limiting groove; Wherein, the same components in the drawings are denoted by the same reference numerals; the drawings are not drawn according to the actual proportion. DETAILED DESCRIPTION

[0021] In view of the deficiencies in the prior art, the present inventors have, through long-term research and a large number of practices, come up with the technical solutions of the present application. The technical solutions, implementation processes and principles thereof will be further explained below in conjunction with the drawings and specific implementation cases in the embodiments of the present application.

[0022] It should be noted that the embodiments described below by reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as limiting the present application. The described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, the present application covers any alternative, modification, equivalent method and solution defined by the claims, and all other embodiments obtained by those of ordinary skill in the art without making creative efforts, which all fall within the scope of protection of the present application.

[0023] In the description of the present application, the terms "first", "second", "third" and the like do not indicate any order, number or importance, but are only used to distinguish different components. Similarly, the terms "one" or "a" and the like do not indicate a quantity limitation, but indicate the existence of at least one. The terms "including" or "containing" and the like mean that the elements or objects appearing before "including" or "containing" cover the elements or objects listed after "including" or "containing" and their equivalents, and do not exclude other elements or objects. The terms "connected" or "connected" and the like are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0024] In the description of the present application, the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, when using two sides, outer sides, upper and lower position terms, it should be understood that they are only used for easy understanding and description, taking into account that the structure can be oriented to other positions.

[0025] In the description of the present application, unless specifically defined and limited, the technical terms or scientific terms used should be understood as the general meaning understood by those skilled in the art of the present application, and the terms "mounting", "connecting", "connecting" and the like should be understood in a broad sense, for example, it can be fixed connection, it can also be detachable connection, it can also be in contact connection or integral connection; for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] The embodiment of the present application aims to introduce and explain the structure and cooperation relationship between the components of the building thermal insulation decorative plate scratch resistance testing device and testing method. Unless otherwise specified, the size, material and manufacturing process of each component in the building thermal insulation decorative plate scratch resistance testing device and testing method in the present application can be selected according to the specific circumstances, and no special limitation and explanation is made here.

[0027] Further, in order to make the public have a better understanding of the present application, in the following detailed description of the present application, some specific details are described in detail. The present application can also be completely understood without the description of these details.

[0028] Embodiment 1 Please refer to Figures 1-4 As shown in the figure, a building thermal insulation decorative plate scratch resistance testing device, comprising a workbench 1, a supporting device 2, a scratch device 3 and a moving device 4; the upper surface of the workbench 1 is a horizontal plane; the supporting device 2 comprises a supporting frame 21, which is vertically arranged, and the supporting frame 21 is fixedly connected with the workbench 1.

[0029] Please refer to Figures 1-4 As shown in the figure, the scratch device 3 is arranged in the supporting frame 21, and the scratch device 3 can realize vertical lifting motion relative to the supporting frame 21, and the scratch device 3 comprises a scratch frame 31 and a scratch head 32; a driving cylinder 33 is arranged between the scratch frame 31 and the scratch head 32, the output end of the driving cylinder 33 is fixedly connected with the scratch head 32, the end of the driving cylinder 33 away from the scratch head 32 is fixedly connected with the scratch frame 31, and the axis of the driving cylinder 33 is inclinedly arranged.

[0030] In use, the test piece can be placed on the workbench 1, the output shaft of the driving cylinder 33 can push the scratch head 32 to move towards the test piece until the scratch head 32 and the surface of the test piece abut each other, so as to realize the scratch test of the test piece, and the output shaft of the driving cylinder 33 can move to realize the step force of the scratch head 32, so as to realize the detection of the test piece.

[0031] Please refer to Figures 1-4As shown, the mobile device 4 comprises a mobile frame 4 fixedly connected to the workbench 1, both ends of the mobile frame 4 are rotatably connected with rotating rollers 41, the axis of the rotating roller 41 is horizontally arranged, the rotating roller 41 is externally sleeved with a mobile belt 42, the rotating roller 41 can drive the mobile belt 42 to realize synchronous movement, the mobile frame 4 is provided with a servo motor 43 corresponding to the position of any rotating roller 41, the output shaft of the servo motor 43 is coaxially arranged with the rotating roller 41, the output shaft of the servo motor 43 is arranged through the mobile frame 4, and the output shaft of the servo motor 43 is fixedly connected with the rotating roller 41.

[0032] As shown in Figures 1-4 As shown, the mobile frame 4 is provided with a fixing device 5, the fixing device 5 comprises a fixed frame 51, the length direction of the fixed frame 51 is the same as the conveying direction of the mobile belt 42, one end of the fixed frame 51 is provided with a shielding plate 52, the shielding plate 52 is slidably connected with the fixed frame 51, the shielding plate 52 is vertically arranged, and the shielding plate 52 can slide in the vertical direction along the fixed frame 51; a shielding inclined surface 53 is formed in the lower surface of the shielding plate 52, the inclination angle of the shielding inclined surface 53 is 45°, the lower end point of the shielding plate 52 is the lower point of the shielding inclined surface 53, the shielding inclined surface 53 is arranged to be inclined in the direction away from the fixed frame 51, and the vertical projection length of the higher point of the shielding inclined surface 53 is greater than the thickness of the test piece.

[0033] As shown in Figures 1-4 As shown, the fixed frame 51 is provided with a width limiting block 54 corresponding to the other side of the shielding plate 52, the width limiting block 54 is vertically arranged, a plurality of width limiting springs 55 are arranged between the width limiting block 54 and the fixed frame 51, the width limiting springs 55 are arranged in an array along the length direction of the width limiting block 54, the axis of the width limiting spring 55 is horizontally arranged, one end of the width limiting spring 55 is fixedly connected with the width limiting block 54, and the other end of the width limiting spring 55 is fixedly connected with the fixed frame 51; the height of the fixed frame 51 is lower than the height of the test piece; the workbench 1 is provided with a placing table 56 corresponding to one side of the fixing device 5, and the upper surface of the placing table 56 is in the same plane as the mobile belt 42.

[0034] In use, the test piece is placed on the placing table 56, the test piece is pushed onto the mobile belt 42 by the worker, the test piece and the shielding inclined surface 53 of the shielding plate 52 abut each other, the shielding plate 52 is pushed to move vertically upward in the vertical direction, until the test piece is completely pushed into the fixed frame 51, the shielding plate 52 falls in the vertical direction under the action of gravity, one side of the shielding plate 52 abuts the test piece, the test piece is pushed into the fixed frame 51 and abuts the width limiting block 54, according to the width of the test piece, the width limiting block 54 slides in the horizontal direction, compresses the width limiting spring 55, and the width limiting spring 55 has a tendency to drive the width limiting block 54 to move in the direction close to the test piece, so that one side of the test block abuts the width limiting block 54 and the other side of the test piece abuts the shielding plate 52, thereby realizing the width limitation of the test piece.

[0035] Please refer to Figures 1-4 As shown in the drawings, the fixing frame 51 is provided with a flattening device 6, the flattening device 6 comprises a flattening rod 61, the flattening rod 61 is vertically arranged, the length direction of the flattening rod 61 is the same as the conveying direction of the moving belt 42; a roller 62 is arranged at the end of the flattening rod 61 away from the flattening rod, the axis of the roller 62 is horizontally arranged, the rolling direction of the roller 62 is the same as the conveying direction of the moving belt 42, the roller 62 is in abutment with the test plate, a sliding block 63 is arranged on the flattening rod 61, the sliding block 63 is in sliding connection with the flattening rod 61, the sliding block 63 can slide along the length direction of the flattening rod 61; a limiting block 64 is arranged on the side of the sliding block 63 away from the flattening rod 61, the limiting block 64 is in rotary connection with the sliding block 63, a limiting groove 65 is formed in the limiting block 64, and the drive cylinder 33 can be inserted into the limiting groove 65.

[0036] In use, the drive cylinder 33 of the scratch device 3 is inserted into the limiting groove 65 of the limiting block 64, the limiting block 64 can rotate relative to the sliding block 63, so that the axis of the limiting groove 65 is the same as the axis of the drive cylinder 33, according to the relative sliding between the sliding block 63 and the flattening rod 61, different scratch devices 3 can be matched, when the scratch cylinder is replaced, scratch devices 3 with different angles and positions can be matched; a level is arranged on the flattening rod 61, the horizontal degree of the flattening rod 61 is kept, a plurality of flattening rods are arranged on the flattening rod 61 in an array, the flattening rods and the rollers 62 arranged at the ends of the flattening rods limit the horizontal degree of the test piece, prevent the test piece from being deformed slightly due to the fact that the sliding force of the scratch head 32 and the test piece is too large and the sliding friction is converted into static friction, so that the test result is inaccurate, at the same time, the vertical force acting on the test piece is reduced due to the inclined arrangement of the drive cylinder 33, the probability that the scratch head 32 is clamped in the test piece is reduced, the probability that the scratch head 32 is damaged is reduced, and the staff injury caused by the damage of the scratch head 32 is reduced.

[0037] A scratch-resistant test method for building thermal insulation decorative plates S101: placing and fixing the test piece The building thermal insulation decorative plate to be tested is horizontally placed on the placing table 56 beside the workbench 1, and the surface of the plate is ensured to be flat.

[0038] The plate is manually pushed so that one end of the plate contacts the moving belt 42 of the moving device 4. The edge of the plate contacts the abutment inclined surface 53 below the shielding plate 52 of the fixing device 5, the shielding plate 52 is pressed and vertically slides along the fixing frame 51 until the plate completely enters the fixing frame 51.

[0039] The shielding plate 52 automatically falls due to gravity, and one side thereof abuts against the side surface of the plate. The other side of the plate is in contact with the width limiting block 54. After the width limiting block 54 is pressed, the width limiting spring 55 is compressed horizontally. The reaction force of the spring pushes the width limiting block 54 to tightly abut against the plate, thereby achieving bidirectional fixing of the plate in the width direction.

[0040] S201: calibration of the scratch device 3; Adjusting the flattening device 6: sliding the sliding block 63 on the flattening rod 61 to move the limiting block 64 to a position aligned with the axis of the drive cylinder 33 of the scratch device 3; rotating the limiting block 64 to make the axis of the limiting groove 65 coincide with the axis of the drive cylinder 33, thereby completing the connection of the scratch device 3 and the flattening device 6.

[0041] Observing the level on the flattening rod 61 to ensure that the flattening rod 61 is in a horizontal state as a whole, so as to ensure the horizontal degree of the plate during the test.

[0042] S301: execution of the scratch test; Starting the servo motor 43 of the moving device 4 to drive the rotating roller 41 to operate the moving belt 42, thereby conveying the fixed plate to the position below the scratch device 3.

[0043] Starting the drive cylinder 33 of the scratch device 3. The inclined output shaft of the drive cylinder 33 pushes the scratch head 32 to move vertically downward until the scratch head 32 is in contact with the surface of the plate.

[0044] The drive cylinder 33 continuously outputs power, and the scratch head 32 applies pressure to the surface of the plate and generates a scratch. By controlling the output stroke of the drive cylinder 33, a stepwise force loading is realized to simulate scratches of different intensities.

[0045] After the test is completed, the drive cylinder 33 drives the scratch head 32 to reset, the moving device 4 conveys the plate back to the initial position, and the test piece is removed.

[0046] Effects achieved: 1. Stable fixation of the test piece: through the bidirectional clamping of the shielding plate 52 and the width limiting block 54, combined with the elastic compensation of the width limiting spring 55, the fixation requirements of plates of different widths can be adapted, and displacement or shaking of the plate during the test is avoided.

[0047] 2. Precise and controllable scratch intensity: the inclined axis design of the drive cylinder 33 allows the force of the scratch head 32 to be decomposed into horizontal and vertical components, which not only ensures sufficient downward pressure, but also reduces the risk of the scratch head 32 being stuck in the plate; through cylinder stroke control, a stepwise force output is realized, which can simulate different levels of scratch impact in actual use.

[0048] 3、Board deformation suppression: the roller 62 of the flattening device 6 rolls on the surface of the board, cooperates with the level to effectively offset the slight warping of the board caused by lateral force in the scratch test, ensures that the test surface is always in a horizontal state, and improves the reliability of the test results.

[0049] 4、Operation safety improvement: the inclination of the driving cylinder 33 reduces the vertical impact force of the scratch head 32 on the board, reduces the risk of breakage or splashing of the scratch head 32; the physical limit of the flattening device 6 further prevents accidental displacement of the board, ensuring the safety of the operator.

[0050] It should be understood that the above embodiments are only to illustrate the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary skilled persons in the art to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or substitutions can be made, and any equivalent changes or modifications made in accordance with the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A scratch resistance testing device for building insulation and decorative panels, characterized in that, It includes a workbench (1), a support device (2), a scratching device (3), and a moving device (4); the support frame (21) of the support device (2) is fixedly connected to the workbench (1); the scratching device (3) is set inside the support frame (21) and can be raised and lowered in the vertical direction relative to the support frame (21); The moving frame (4) of the moving device (4) is fixedly connected to the workbench (1). The moving frame (4) is equipped with a rotating roller (41) and a moving belt (42). The rotating roller (41) can drive the moving belt (42) to move synchronously. The moving frame (4) is equipped with a fixing device (5) for fixing the test piece and adapting to test pieces of different widths. The support frame (21) is equipped with a flattening device (6) for preventing the test piece from undergoing slight deformation and reducing the probability of the scratching head (32) getting stuck in the test piece. The scratching device (3) includes a scratching frame (31) and a scratching head (32). The scratching head (32) is installed on the scratching frame (31). The scratching frame (31) and the scratching head (32) are connected to the workbench (1). A drive cylinder (33) is provided between the head (32). The output end of the drive cylinder (33) is fixedly connected to the scratching head (32). The end of the drive cylinder (33) away from the scratching head (32) is fixedly connected to the scratching frame (31). The axis of the drive cylinder (33) is inclined so as to push the scratching head (32) towards the test piece through the output shaft of the drive cylinder (33) to achieve scratch testing. The step force detection of the scratching head (32) is achieved by moving the output shaft of the drive cylinder (33). The inclined setting can reduce the vertical force acting on the test piece and reduce the probability of the scratching head (32) getting stuck in the test piece.

2. The scratch resistance testing device for building insulation and decorative panels according to claim 1, characterized in that, A servo motor (43) is provided at the position of any rotating roller (41) on the moving frame (4). The output shaft of the servo motor (43) is coaxial with the rotating roller (41) and passes through the moving frame (4). The output shaft of the servo motor (43) is fixedly connected to the rotating roller (41) and is used to drive the rotating roller (41) to drive the moving belt (42) to move synchronously.

3. The scratch resistance testing device for building insulation and decorative panels according to claim 1, characterized in that, The fixing device (5) includes a fixing frame (51), which is set along the conveying direction of the moving belt (42). A baffle plate (52) is set at one end of the fixing frame (51). The baffle plate (52) is slidably connected to the fixing frame (51) and can slide in the vertical direction. A baffle slope (53) with an inclination angle of 45° is opened on the lower surface of the baffle plate (52). The lower point of the baffle slope (53) is the lower end point of the baffle plate (52). The baffle slope (53) is inclined away from the fixing frame (51). The vertical projection length of the higher point of the baffle slope (53) is greater than the thickness of the test piece. When the test piece is pushed into the fixing frame (51), the test piece abuts against the baffle slope (53) and pushes the baffle plate (52) upward. After the test piece has completely entered, the baffle plate (52) falls down to abut against the test piece.

4. The scratch resistance testing device for building insulation and decorative panels according to claim 3, characterized in that, A width limiting block (54) is provided on the other side of the fixing frame (51) corresponding to the baffle plate (52). The width limiting block (54) is set vertically. Multiple width limiting springs (55) are arranged in an array along the length direction of the width limiting block (54) between the width limiting block (54) and the fixing frame (51). The axis of the width limiting spring (55) is set horizontally. One end of the width limiting spring (55) is fixedly connected to the width limiting block (54), and the other end of the width limiting spring (55) is fixedly connected to the fixing frame (51). The height of the fixing frame (51) is lower than the height of the test piece. It is used to make the width limiting block (54) slide and compress the width limiting spring (55) in the horizontal direction according to the width of the test piece, so as to limit the width of test pieces of different widths.

5. The scratch resistance testing device for building insulation and decorative panels according to claim 3, characterized in that, The workbench (1) is provided with a placement platform (56) on one side corresponding to the fixing device (5). The upper surface of the placement platform (56) is on the same plane as the moving belt (42), which is used to facilitate the staff to push the test piece from the placement platform (56) onto the moving belt (42).

6. The scratch resistance testing device for building insulation and decorative panels according to claim 1, characterized in that, The flattening device (6) includes a flattening rod (61), which is vertically arranged and its length direction is the same as the conveying direction of the moving belt (42). A roller (62) is provided at the end of the flattening rod (61) away from the fixed flattening rod. The axis of the roller (62) is horizontally arranged and its rolling direction is the same as the conveying direction of the moving belt (42). The roller (62) abuts against the test plate to limit the levelness of the test piece and prevent the test piece from undergoing slight deformation due to excessive sliding force of the scratch head (32).

7. The scratch resistance testing device for building insulation and decorative panels according to claim 6, characterized in that, A sliding block (63) is provided on the flattening rod (61). The sliding block (63) is slidably connected to the flattening rod (61) and can slide along the length direction of the flattening rod (61). A limiting block (64) is provided on the side of the sliding block (63) away from the flattening rod (61). The limiting block (64) is rotatably connected to the sliding block (63). A limiting groove (65) is provided on the limiting block (64). A driving cylinder (33) can be inserted into the limiting groove (65) to allow the limiting block (64) to rotate relative to the sliding block (63), so that the axis of the limiting groove (65) and the axis of the driving cylinder (33) are on the same axis. Different scratching devices (3) are matched according to the relative sliding of the sliding block (63) and the flattening rod (61).

8. The scratch resistance testing device for building insulation and decorative panels according to claim 6, characterized in that, A level is installed on the flattening rod (61), and multiple leveling rods are arranged in an array on the flattening rod (61) to maintain the levelness of the flattening rod (61) and further ensure the levelness of the test piece.

9. A test method for scratch resistance of building insulation decorative panels, characterized in that, Includes the following steps: S101: Test piece placement and fixing: Place the building insulation and decorative panel to be tested horizontally on the placement platform (56) next to the workbench (1) to ensure that the surface of the panel is flat; manually push the panel so that one end of it contacts the moving belt (42) of the moving device (4), and the edge of the panel contacts the lower end of the shielding slope (53) of the shielding plate (52) of the fixing device (5). Continue to push the panel with force, and the shielding plate (52) slides vertically upward along the fixing frame (51) under pressure until the panel is completely inside the fixing frame (51); the shielding plate (52) falls automatically due to gravity, and one side of it abuts against the side of the panel, and the other side of the panel contacts the width limiting block (54). After the width limiting block (54) is pressed, it horizontally compresses the width limiting spring (55), and the spring reaction force pushes the width limiting block (54) to stick tightly to the panel, so as to achieve bidirectional fixing of the panel width direction; S201: Scratch device (3) calibration: Adjust the flattening device (6), slide the sliding block (63) on the flattening rod (61) so that the limiting block (64) moves to the position aligned with the axis of the drive cylinder (33) of the scratch device (3); rotate the limiting block (64) so ​​that the axis of its limiting groove (65) coincides with the axis of the drive cylinder (33) to complete the connection between the scratch device (3) and the flattening device (6); observe the level on the flattening rod (61) to ensure that the flattening rod (61) is in a horizontal state to ensure the levelness of the board during the test. S301: Scratch test execution: Start the servo motor (43) of the moving device (4) to drive the rotating roller (41) to drive the moving belt (42) to rotate and transfer the fixed plate to the underside of the scratch device (3); start the drive cylinder (33) of the scratch device (3), and its inclined output shaft pushes the scratch head (32) to move vertically downward until the scratch head (32) contacts the surface of the plate; the drive cylinder (33) continuously outputs power, and the scratch head (32) applies pressure to the surface of the plate and produces scratches. By controlling the output stroke of the drive cylinder (33), a stepped force loading is achieved to simulate the scratching effect of different intensities; after the test is completed, the drive cylinder (33) drives the scratch head (32) to reset, the moving device (4) transfers the plate back to the initial position, and the test piece is removed.

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