A water-based paint film hardness detection device

Abstract

The present invention discloses a device for detecting the hardness of a coating film of a water-based paint, comprising a base, a first slide groove being provided on the base, one end of the base penetrating to the inner wall of the first slide groove and being rotatably connected to a threaded rod driven to reciprocate by a power mechanism, a threaded sleeve being rotatably connected to the outer contour of the threaded rod, and the threaded sleeve being horizontally reciprocating on the inner wall of the first slide groove, a bearing platform for placing a material coated with a water-based paint being fixedly connected to the upper surface of the threaded sleeve, a detection mechanism for detecting the hardness of the coating film on the surface of the material on the bearing platform being further provided on the base, the power mechanism being a motor after being energized, the detection mechanism comprising an n-shaped frame fixedly connected to the center positions of both sides of the base, a sleeve penetrating and fixedly connected to the center position of the n-shaped frame, a second cylindrical cam being movably connected to the inner wall of the sleeve, and a rectangular block being fixedly connected to the bottom of the second cylindrical cam.

Description

Technical Field

[0001] The invention relates to the technical field of coating film hardness detection, in particular to a device for detecting the hardness of a water-based paint coating film. Background Art

[0002] Film hardness testing equipment is an indispensable testing equipment in industries such as plastic spraying and metal electroplating. It is a special tool for measuring film hardness index by scratching the film with a pencil marked with hardness grade. At present, there are some testing devices for testing the hardness of color steel paint film, which can automatically perform hardness testing, but these devices have some defects.

[0003] For example, a Chinese patent (patent number: CN114354418A, patent name: a detection device for detecting the hardness of color steel paint film) discloses a detection device, which includes a base, a bottom plate, a first driving mechanism, a placement table, a support frame and a pencil holder, wherein the first driving mechanism includes a motor and a screw, and the motor drives the screw to rotate and drive the bottom plate and the placement table to reciprocate along the axis of the screw. Although the device can realize automatic detection, its structure is relatively complex, and it is difficult to automatically adjust the pencil angle, which leads to the inconsistency between the pencil and the paint film angle, affecting the data accuracy of the hardness test.

[0004] In addition, the Chinese patent (patent number: CN213842914U, patent name: A FPC performance detection device with good detection accuracy) discloses another detection device, which includes a base, a conveyor belt and a slide bar, a conveyor belt is installed on the top surface of the base, and slide bars are symmetrically fixed on the top of the base on both sides of the conveyor belt, a mounting plate is slidably sleeved on the surface of the slide bar, and a reciprocating mechanism capable of reciprocating horizontal movement is provided at the bottom of the mounting plate. Although this device can also realize automatic detection and has a relatively simple structure, its accuracy is not high, and it is difficult to automatically adjust the pencil angle, which leads to inconsistency between the pencil and the paint film angle, affecting the data accuracy of hardness detection.

[0005] In order to solve the above problems, the present application provides a detection device for detecting the hardness of color steel paint film. Summary of the invention

[0006] The purpose of the present invention is to provide a water-based paint film hardness detection device, which has the advantage of automatically monitoring the hardness of the coating surface and solves the problems in the background technology.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a device for detecting the hardness of a water-based paint film, comprising a base, a first slide groove being provided on the base, one end of the base passing through the inner wall of the first slide groove and being rotatably connected to a threaded rod driven to reciprocate by a power mechanism, a threaded sleeve being rotatably connected to the outer contour of the threaded rod, and the threaded sleeve being horizontally reciprocating on the inner wall of the first slide groove, a supporting platform for placing a water-based paint material being fixedly connected to the upper surface of the threaded sleeve, a detecting mechanism for detecting the hardness of the coating film on the surface of the material on the supporting platform being further provided on the base, and the above-mentioned power mechanism is an electric motor after being energized.

[0008] Preferably, the detection mechanism includes an n-shaped frame fixedly connected to the center positions of both sides of the base, a sleeve penetrating and fixedly connected to the center position of the n-shaped frame, a second cylindrical cam movably connected to the inner wall of the sleeve, a rectangular block fixedly connected to the bottom of the second cylindrical cam, a hole groove for placing a pencil is formed on the upper surface of the rectangular block at one end away from the sleeve, and spring sheets for clamping the pencil are fixedly connected to symmetrical positions on both sides of the inner wall of the hole groove, and the pencil forms an angle of forty-five degrees with the supporting platform.

[0009] Preferably, the rectangular block is fixedly connected to an end away from the sleeve with a rectangular shell, and a rotating rod is passed through and rotatably connected at both ends of the rectangular shell. Gears are fixedly connected at symmetrical positions at both ends of the rotating rod, and tooth plates that drive the rotating rod to rotate on a fixed axis are fixedly connected at symmetrical positions on both sides of the upper surface of the support platform, and the tooth plates are meshed with the gears for transmission.

[0010] Preferably, the rectangular shell is provided with a wiping mechanism for wiping pen marks on the coating film, the wiping mechanism includes a rectangular frame fixedly connected to the bottom of the rectangular shell, a moving block movably connected to the inner wall of the rectangular frame, a first cylindrical cam fixedly connected to the outer contour of the rotating rod on the inner wall of the rectangular shell to drive the moving block to move horizontally back and forth, a slider is fixedly connected to one end of the moving block close to the first cylindrical cam, and the end of the slider away from the moving block penetrates into the sliding groove of the outer contour of the first cylindrical cam and is movably connected.

[0011] Preferably, a second slide groove is provided at the bottom of the movable block, and an eraser for erasing pen marks is slidably connected inside the second slide groove, and a return spring for adaptively adjusting the eraser height is fixedly connected between the opposite surfaces of the eraser and the inner wall of the second slide groove.

[0012] Preferably, a dust suction mechanism for cleaning waste residues on the coating surface is provided on the rectangular frame, and the dust suction mechanism includes cylindrical shells fixedly connected to both ends of the inner wall of the rectangular frame at symmetrical positions, and the two cylindrical shells are penetrated to the inner wall and fixedly connected to the exhaust pipe on one side of the rotating rod away from the moving block, and the cylindrical shells are penetrated to the inner wall and fixedly connected to the exhaust pipe at symmetrical positions with the exhaust pipe.

[0013] Preferably, the dust suction mechanism also includes two inner walls of the cylindrical shells, both of which are slidably connected to piston plates, and the ends of the piston plates away from the exhaust pipe are fixedly connected to moving rods, and the ends of the moving rods away from the piston plates penetrate the cylindrical shell and are fixedly connected to the moving block, and the moving rod is movably connected to the cylindrical shell, and the inner wall of the exhaust pipe close to one end of the cylindrical shell is fixedly connected to a one-way exhaust valve for quantitatively discharging air from the inner wall of the cylindrical shell, and the inner wall of the suction pipe close to one end of the cylindrical shell is fixedly connected to a one-way intake valve for sucking external air into the cylindrical shell, and the inner wall of the suction pipe away from the one-way intake valve is fixedly connected to a block to prevent waste residue from falling.

[0014] Preferably, the sleeve is also provided with an adjustment mechanism for turning the rectangular block 180 degrees, the adjustment mechanism includes an electric push rod fixedly connected to the top of the sleeve for driving the second cylindrical cam to move up and down and reciprocate, the output shaft on the electric push rod passes through the sleeve and is fixedly connected to the second cylindrical cam, the outer contour of the sleeve away from the end of the electric push rod passes through the inner wall and is fixedly connected to a connecting tube, and the inner wall of the connecting tube is movably connected to a limit block, and the limit block passes through the end of the connecting tube away from the connecting tube into a slide groove of the outer contour of the second cylindrical cam and is movably connected.

[0015] Preferably, push switches for starting the electric push rod to perform telescopic and reciprocating movement are fixedly connected to symmetrical positions at both ends of the inner wall of the first slide groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By setting up a detection mechanism, along with the horizontal reciprocating movement of the supporting platform, the pencil lead on the rectangular block can be used to perform scratch inspection on the coating surface, thereby improving the stability of the pencil hardness detection, avoiding manual detection of the coating hardness by personnel, and improving the convenience of detection.

[0018] By setting up a wiping mechanism, a second slide groove is provided on the moving block, and the inner wall of the second slide groove is slidably connected with an eraser, and the moving block moves horizontally back and forth, the eraser can wipe and remove the pen marks on the coating film, avoiding the need for subsequent personnel to manually erase the pen marks, and further improving the efficiency of coating hardness detection.

[0019] By setting up a dust suction mechanism, when the moving rod pulls the piston plate to move toward the end away from the exhaust pipe, the internal air pressure of the cylindrical shell close to the exhaust pipe end is negative pressure, and the one-way air inlet valve is in an open state, and the one-way exhaust valve is in a closed state, so that the intake pipe can suck external air into the inner wall of the cylindrical shell, and a block is set on the intake pipe, and the position of the intake pipe is adjusted according to the scene stretching, so that the waste residue on the surface of the coating can be sucked into the inner wall of the intake pipe, and the waste residue on the inner wall of the intake pipe is prevented from falling off under the action of the block, thereby realizing the cleaning of the waste residue on the surface of the coating, so that people can observe the scratches on the surface of the coating.

[0020] By setting up an adjustment mechanism, along with the horizontal reciprocating movement of the supporting platform, multiple scratch tests can be carried out on the material coating on the supporting platform, thereby repeatedly scratching five times with a pencil of the same hardness grade. If two or more strokes of the coating are not scratched, a pencil with a higher hardness grade than the previous pencil is used for the same experiment. After scratching two or more strokes, the grade of the pencil hardness is recorded, and the hardness grade after this grade is used as the pencil hardness of the coating.

[0021] The coordinated use of the above structure solves the problem that the existing water-based paint film hardness detection device is difficult to automatically perform scratch inspection on materials coated with water-based paint, and most of the time-consuming and laborious inspections are performed by personnel manually pushing a pencil on the coating surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the rectangular shell of the present invention;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the part where the bearing platform of the present invention is located;

[0025] Figure 4 It is a cross-sectional schematic diagram of the three-dimensional structure of the base of the present invention;

[0026] Figure 5 It is a cross-sectional schematic diagram of the rectangular shell and rectangular frame three-dimensional structure of the present invention;

[0027] Figure 6 For the present invention Figure 1 Schematic diagram of the structure at A in the middle;

[0028] Figure 7 It is a cross-sectional schematic diagram of the three-dimensional structure of the sleeve of the present invention;

[0029] Figure 8 It is a cross-sectional schematic diagram of a rectangular block structure of the present invention;

[0030] Fig. 9 It is a schematic cross-sectional view of the cylindrical shell structure of the present invention.

[0031] In the figure: 1, base; 101, first slide groove; 2, threaded rod; 3, threaded sleeve; 4, bearing platform; 5, n-shaped frame; 6, rectangular block; 61, hole groove; 7, reed; 8, rectangular shell; 9, rotating rod; 10, first cylindrical cam; 11, gear; 12, tooth plate; 13, rectangular frame; 14, moving block; 141, second slide groove; 15, slider; 16, cylindrical shell; 17, exhaust pipe; 171, one-way exhaust valve; 18, intake pipe; 181, one-way intake valve; 182, stopper; 19, piston plate; 20, moving rod; 21, sleeve; 22, electric push rod; 24, second cylindrical cam; 25, connecting pipe; 26, limit block; 27, push switch; 28, eraser; 29, reset spring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1:

[0034] See also Figures 1 to 9 The present invention provides a technical solution: a device for detecting the hardness of a water-based paint film, comprising a base 1, a first slide groove 101 being provided on the base 1, one end of the base 1 passing through the inner wall of the first slide groove 101 and being rotatably connected to a threaded rod 2 driven to reciprocate by a power mechanism, a threaded sleeve 3 being rotatably connected to the outer contour of the threaded rod 2, and the threaded sleeve 3 being horizontally reciprocating on the inner wall of the first slide groove 101, a supporting platform 4 on which a water-based paint material is placed being fixedly connected to the upper surface of the threaded sleeve 3, a detecting mechanism for detecting the hardness of the coating film on the surface of the material on the supporting platform 4 being further provided on the base 1, and the above-mentioned power mechanism is a motor after being energized.

[0035] When in use, the motor drives the threaded rod 2 to perform fixed-axis reciprocating rotation. The threaded sleeve 3 is arranged on the threaded rod 2, and the threaded sleeve 3 is screwed to the threaded rod 2. The first slide groove 101 supports the threaded sleeve 3, so that the threaded sleeve 3 drives the supporting platform 4 to perform horizontal reciprocating movement on the base 1 under the action of the threaded rod 2.

[0036] Embodiment 2:

[0037] On the basis of the first embodiment, further:

[0038] The detection mechanism includes an n-shaped frame 5 fixedly connected to the center positions of both sides of the base 1, a sleeve 21 passing through and fixedly connected to the center position of the n-shaped frame 5, a second cylindrical cam 24 movably connected to the inner wall of the sleeve 21, a rectangular block 6 fixedly connected to the bottom of the second cylindrical cam 24, a hole groove 61 for placing a pencil is opened on the upper surface of the rectangular block 6 at one end away from the sleeve 21, and spring leaves 7 for clamping the pencil are fixedly connected to the symmetrical positions on both sides of the inner wall of the hole groove 61, and the pencil and the supporting platform 4 form a forty-five degree angle.

[0039] When in use, the rectangular block 6 is provided with a hole 61 and a spring 7 is arranged on the inner wall of the hole 61. When a person inserts a pencil into the inner wall of the hole 61 at a forty-five degree angle, the spring 7 expands outward. When the pencil is moved to a position corresponding to the coating on the surface of the material on the supporting platform 4, the pencil lead is not broken. At the same time, the pencil is clamped under the action of the spring 7, making it difficult for the pencil to move in the opposite direction. As the supporting platform 4 moves back and forth horizontally, the pencil lead on the rectangular block 6 is scratched on the coating surface, thereby improving the stability of the pencil hardness detection, avoiding the manual detection of the coating hardness by personnel, and improving the convenience of detection.

[0040] Embodiment three:

[0041] On the basis of the second embodiment, further:

[0042] One end of the rectangular block 6 away from the sleeve 21 is fixedly connected to a rectangular shell 8, and both ends of the rectangular shell 8 are penetrated and rotatably connected to a rotating rod 9, and gears 11 are fixedly connected to the rotating rod 9 at symmetrical positions at both ends. The upper surface of the support platform 4 is fixedly connected to toothed plates 12 that drive the rotating rod 9 to rotate on a fixed axis at symmetrical positions on both sides, and the toothed plates 12 are meshed with the gears 11 for transmission.

[0043] When in use, through the tooth plate 12 set on the supporting platform 4, the tooth plate 12 and the gear 11 are meshed and transmitted. As the supporting platform 4 moves back and forth horizontally, the tooth plate 12 and the gear 11 mesh and move, so that the rotating rod 9 rotates on a fixed axis under the action of the gear 11 and the tooth plate 12.

[0044] The rectangular shell 8 is provided with a wiping mechanism for wiping pen marks on the coating film, the wiping mechanism includes a rectangular frame 13 fixedly connected to the bottom of the rectangular shell 8, a moving block 14 movably connected to the inner wall of the rectangular frame 13, a first cylindrical cam 10 that drives the moving block 14 to move horizontally back and forth is fixedly connected to the outer contour of the rotating rod 9 on the inner wall of the rectangular shell 8, a slider 15 is fixedly connected to one end of the moving block 14 close to the first cylindrical cam 10, and the end of the slider 15 away from the moving block 14 penetrates into the slide groove of the outer contour of the first cylindrical cam 10 and is movably connected;

[0045] A second slide groove 141 is provided at the bottom of the moving block 14, and an eraser 28 for erasing pen marks is slidably connected inside the second slide groove 141, and a return spring 29 for adaptively adjusting the height of the eraser 28 is fixedly connected to the opposite surface of the eraser 28 and the inner wall of the second slide groove 141.

[0046] When in use, through the 010 set on the rotating rod 9, 010 rotates along with the rotating rod 9 on a fixed axis, and through the moving block 14 set on the rectangular frame 13, the rectangular frame 13 supports the moving block 14, and through the slider 15 set on the moving block 14, the slider 15 slides in a limited position in the slide groove of the first cylindrical cam 10, and along with the fixed axis rotation of the first cylindrical cam 10, the slider 15 drives the moving block 14 to move back and forth horizontally.

[0047] By means of a second slide groove 141 provided on the moving block 14, and an eraser 28 slidably connected to the inner wall of the second slide groove 141, the moving block 14 performs horizontal reciprocating movement, thereby enabling the eraser 28 to wipe and remove pen marks on the coating film, thereby avoiding subsequent personnel from manually erasing the pen marks, and further improving the efficiency of coating film hardness detection. In addition, a reset spring 29 provided on the eraser 28 will wear out during use, and can enable the eraser 28 to maintain contact with the coating film surface under the elastic force of the reset spring 29, thereby avoiding the problem of gaps between the eraser 28 and the pen marks on the coating film surface after the eraser 28 is worn, which may easily lead to the problem of incomplete erasing of the pen marks by the eraser 28.

[0048] When in use, through the toothed plate 12 arranged on the supporting platform 4, the toothed plate 12 is meshed with the gear 11 for transmission, and the supporting platform 4 moves back and forth horizontally, so that the rotating rod 9 drives the first cylindrical cam 10 to reciprocate on a fixed axis under the action of the gear 11 and the toothed plate 12, and the rectangular frame 13 supports the moving block 14 through the moving block 14, and the slider 15 is arranged on the moving block 14, and the slider 15 slides in the slide groove of the first cylindrical cam 10 in a limited position, and the first cylindrical cam 10 rotates on a fixed axis, so that the slider 15 drives the moving block 14 to reciprocate horizontally, and the bottom of the moving block 14 is fixedly connected with an eraser, and the moving block 14 moves back and forth horizontally, so that the moving block 14 can wipe and remove the pen marks on the coating film, avoiding the subsequent personnel from manually erasing the pen marks, and further improving the efficiency of coating hardness detection.

[0049] Embodiment 4:

[0050] On the basis of the third embodiment, further:

[0051] The rectangular frame 13 is provided with a dust suction mechanism for cleaning the waste residue on the coating surface, and the dust suction mechanism includes a cylindrical shell 16 fixedly connected to both ends of the inner wall of the rectangular frame 13 at symmetrical positions, and the two sides of the cylindrical shells 16 away from the end of the moving block 14 close to the rotating rod 9 are penetrated to the inner wall and fixedly connected with an exhaust pipe 17, and the cylindrical shells 16 are symmetrically connected to the exhaust pipe 17. The positions are penetrated to the inner wall and fixedly connected with the suction pipe 18 for cleaning the waste residue on the coating surface;

[0052] The dust suction mechanism also includes two inner walls of the cylindrical shells 16, both of which are slidably connected to piston plates 19, and the ends of the piston plates 19 away from the exhaust pipe 17 are fixedly connected to moving rods 20, and the ends of the moving rods 20 away from the piston plates 19 penetrate the cylindrical shell 16 and are fixedly connected to the moving block 14, and the moving rods 20 are movably connected to the cylindrical shell 16, and the inner wall of the exhaust pipe 17 close to one end of the cylindrical shell 16 is fixedly connected to a one-way exhaust valve 171 for quantitatively discharging air from the inner wall of the cylindrical shell 16, and the inner wall of the suction pipe 18 close to one end of the cylindrical shell 16 is fixedly connected to a one-way air intake valve 181 for sucking external air into the cylindrical shell 16, and the inner wall of the suction pipe 18 away from the one-way air intake valve 181 is fixedly connected to a block 182 for preventing waste residue from falling.

[0053] When in use, waste residue will remain on the surface after the eraser erases the pen marks, which will affect the personnel's ability to see whether the coating surface is scratched.

[0054] As the moving block 14 performs horizontal reciprocating movement, the moving block 14 pulls the moving rods 20 on both sides to perform horizontal reciprocating movement.

[0055] When the moving rod 20 pulls the piston plate 19 to move toward the end away from the exhaust pipe 17, the internal air pressure of the cylindrical shell 16 close to the exhaust pipe 17 is negative, and the one-way air intake valve 181 is in an open state, and the one-way exhaust valve 171 is in a closed state, so that the intake pipe 18 can suck external air into the inner wall of the cylindrical shell 16, and the stopper 182 is arranged on the intake pipe 18. At the same time, the intake pipe 18 is stretched according to the usage scenario to adjust its position, so that the waste residue on the surface of the coating can be sucked into the inner wall of the intake pipe 18. At the same time, the stopper 182 prevents the waste residue on the inner wall of the intake pipe 18 from falling, thereby realizing the cleaning of the waste residue on the surface of the coating, so that people can observe the scratches on the surface of the coating.

[0056] When the moving rod 20 pushes the piston plate 19 to move toward the end close to the exhaust pipe 17, the internal air pressure of the cylindrical shell 16 close to the exhaust pipe 17 becomes positive pressure, the one-way exhaust valve 171 is in an open state, and the one-way intake valve 181 is in a closed state, so that the exhaust pipe 17 discharges the air inside the cylindrical shell 16.

[0057] Embodiment five:

[0058] On the basis of the fourth embodiment, further:

[0059] The sleeve 21 is also provided with an adjustment mechanism for turning the rectangular block 6 180 degrees, and the adjustment mechanism includes an electric push rod 22 fixedly connected to the top of the sleeve 21 for driving the second cylindrical cam 24 to move up and down and reciprocate, the output shaft on the electric push rod 22 passes through the sleeve 21 and is fixedly connected to the second cylindrical cam 24, the outer contour of the sleeve 21 away from the electric push rod 22 is penetrated to the inner wall and is fixedly connected with a connecting pipe 25, and the inner wall of the connecting pipe 25 is movably connected to a limit block 26, and the end of the limit block 26 away from the connecting pipe 25 is penetrated into the slide groove of the outer contour of the second cylindrical cam 24 and is movably connected.

[0060] Push switches 27 for starting the electric push rod 22 to perform telescopic and reciprocating movement are fixedly connected to symmetrical positions at both ends of the inner wall of the first slide slot 101 .

[0061] When in use, through the push switch 27 provided on the first slide groove 101, and the two push switches 27 are fixedly connected at both ends of the inner wall of the first slide groove 101, when the threaded sleeve 3 moves to the limit position at one end of the first slide groove 101, and the threaded sleeve 3 and the push switch 27 are released and pressed, along with the push switch 27 and the electric push rod 22 being electrically connected, the push switch 27 energizes the electric push rod 22, so that the output shaft on the electric push rod 22 drives the second cylindrical cam 24 to move up and down reciprocatingly, through the connecting tube 25 provided on the sleeve 21, and the connecting tube 25 is provided When the second cylindrical cam 24 moves vertically toward the end close to the base 1, and the top end of the vertical groove on the outer contour of the second cylindrical cam 24 moves to the limit position of the limit block 26, the limit block 26 contacts the arc groove on the outer contour of the second cylindrical cam 24, and then the second cylindrical cam 24 is driven by the electric push rod 22 to move toward the end away from the base 1, so that the second cylindrical cam 24 is rotated 180 degrees for adjustment under the action of the limit block 26, so that the rectangular shell 8 and the rotating rod 9 on the rectangular block 6 are rotated and adjusted synchronously.

[0062] The above structure, accompanied by the horizontal reciprocating movement of the supporting platform 4, can realize multiple scratch tests on the material coating on the supporting platform 4, thereby repeatedly scratching five times with a pencil of the same hardness number. If two or more strokes of the coating are not scratched, a pencil with a higher hardness number than the previous pencil is used to perform the same experiment, scratch two or more times with the pencil, record the hardness number of the pencil, and use the hardness number after this number as the pencil hardness of the coating.

[0063] It further realizes that the existing water-based paint film hardness detection device can automatically perform scratch inspection on materials coated with water-based paint, is easy to use, and is better than traditional products.

[0064] Working principle: When the water-based paint film hardness detection device is used, the motor drives the threaded rod 2 to perform fixed-axis reciprocating rotation, and the threaded sleeve 3 is arranged on the threaded rod 2, and the threaded sleeve 3 is screwed with the threaded rod 2, accompanied by the first slide groove 101 to support the threaded sleeve 3, so that the threaded sleeve 3 drives the bearing platform 4 to perform horizontal reciprocating movement on the base 1 under the action of the threaded rod 2, and the 010 arranged on the rotating rod 9 is used, so that the 010 is accompanied by the rotating rod 9 to perform fixed-axis rotation, and the moving block 14 arranged on the rectangular frame 13 is used, so that the rectangular frame 13 supports the moving block 14, and the slider 15 is arranged on the moving block 14, and the slider 15 is limited in the slide groove of the first cylindrical cam 10. The first cylindrical cam 10 rotates on a fixed axis, so that the slider 15 drives the moving block 14 to move back and forth horizontally. Through the second slide groove 141 provided on the moving block 14, and the inner wall of the second slide groove 141 is slidably connected with an eraser 28, the moving block 14 moves back and forth horizontally, so that the eraser 28 can wipe and remove the pen marks on the coating film, avoiding the subsequent personnel to manually erase the pen marks, further improving the efficiency of the coating hardness detection, and the reset spring 29 provided on the eraser 28 will wear out during the use of the eraser 28, so that the eraser 28 can keep in contact with the coating surface under the elastic force of the reset spring 29, avoiding the gap between the eraser 28 and the pen marks on the coating surface after the eraser 28 is worn, which is easy to cause the eraser 28 To solve the problem of unclean erasing of pen marks, when the moving rod 20 pulls the piston plate 19 to move toward the end away from the exhaust pipe 17, the internal air pressure of the cylindrical shell 16 close to the exhaust pipe 17 is negative, and the one-way air inlet valve 181 is in an open state, and the one-way exhaust valve 171 is in a closed state, so that the suction pipe 18 can suck the external air into the inner wall of the cylindrical shell 16, and the stopper 182 is arranged on the suction pipe 18, and the suction pipe 18 is adjusted in position according to the scene stretching, so that the waste residue on the surface of the coating can be sucked into the inner wall of the suction pipe 18, and the waste residue on the inner wall of the suction pipe 18 is prevented from falling under the action of the stopper 182, so that the waste residue on the surface of the coating can be cleaned up, so that the personnel can view the scratches on the surface of the coating. Through the push switch 27 arranged on the first slide groove 101, and the two push switches 27 are fixedly connected at both ends of the inner wall of the first slide groove 101, when the threaded sleeve 3 moves to the limit position at one end of the first slide groove 101, and the threaded sleeve 3 and the push switch 27 are released and pressed, the output shaft on the electric push rod 22 drives the second cylindrical cam 24 to move up and down reciprocatingly, when the second cylindrical cam 24 moves vertically toward the end close to the base 1, and the top end of the vertical slide groove on the outer contour of the second cylindrical cam 24 moves to the limit position of the limit block 26, so that the limit block 26 contacts the arc-shaped slide groove on the outer contour of the second cylindrical cam 24, and then the second cylindrical cam 24 is driven by the electric push rod 22 to move toward the end away from the base 1,The second cylindrical cam 24 is rotated 180 degrees for adjustment under the action of the limit block 26, so that the rectangular housing 8 and the rotating rod 9 on the rectangular block 6 are rotated and adjusted synchronously.

[0065] It further realizes that the existing water-based paint film hardness detection device can automatically perform scratch inspection on materials coated with water-based paint, is easy to use, and is better than traditional products.

[0066] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0067] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water-based paint film hardness detection device, characterized in that: The invention comprises a base (1), wherein a first slide groove (101) is provided on the base (1), and a threaded rod (2) driven to reciprocate by a power mechanism is rotatably connected to the base (1) on a fixed axis, and the threaded rod (2) passes through one end of the base (1) to the inner wall of the first slide groove (101), and a threaded sleeve (3) is rotatably connected to the outer contour of the threaded rod (2), and the threaded sleeve (3) moves horizontally reciprocatingly on the inner wall of the first slide groove (101), and a bearing platform (4) coated with a water-based coating material is fixedly connected to the upper surface of the threaded sleeve (3), and a detection mechanism for detecting the hardness of the coating film on the surface of the material on the bearing platform (4) is also provided on the base (1), and the above-mentioned power mechanism is a motor after being energized; The detection mechanism comprises an n-shaped frame (5) fixedly connected at the center positions of both sides of the base (1), a sleeve (21) passing through and fixedly connected at the center position of the n-shaped frame (5), a second cylindrical cam (24) movably connected to the inner wall of the sleeve (21), a rectangular block (6) fixedly connected to the bottom of the second cylindrical cam (24), a hole groove (61) for placing a pencil is formed on the upper surface of the rectangular block (6) at one end away from the sleeve (21), and reeds (7) for clamping the pencil are fixedly connected at symmetrical positions on both sides of the inner wall of the hole groove (61), and the pencil forms an angle of 45 degrees with the support platform (4); One end of the rectangular block (6) away from the sleeve (21) is fixedly connected to a rectangular shell (8), and two ends of the rectangular shell (8) are penetrated and rotatably connected to a rotating rod (9), and two ends of the rotating rod (9) are fixedly connected to gears (11) at symmetrical positions, and two sides of the upper surface of the support platform (4) are fixedly connected to tooth plates (12) that drive the rotating rod (9) to rotate around a fixed axis, and the tooth plates (12) and the gears (11) are meshed for transmission; The rectangular shell (8) is provided with a wiping mechanism for wiping pen marks on the coating film, the wiping mechanism comprising a rectangular frame (13) fixedly connected to the bottom of the rectangular shell (8), a moving block (14) movably connected to the inner wall of the rectangular frame (13), a first cylindrical cam (10) for driving the moving block (14) to perform horizontal reciprocating movement fixedly connected to the outer contour of the rotating rod (9) on the inner wall of the rectangular shell (8), a slider (15) fixedly connected to one end of the moving block (14) close to the first cylindrical cam (10), and an end of the slider (15) away from the moving block (14) penetrates into a slide groove of the outer contour of the first cylindrical cam (10) and is movably connected; A second slide groove (141) is provided at the bottom of the moving block (14), and an eraser (28) for erasing pen marks is slidably connected inside the second slide groove (141), and a return spring (29) for adaptively adjusting the height of the eraser (28) is fixedly connected to the opposite surface of the eraser (28) and the inner wall of the second slide groove (141); The rectangular frame (13) is provided with a dust suction mechanism for cleaning waste residue on the coating surface, the dust suction mechanism comprises a cylindrical shell (16) fixedly connected at both ends of the inner wall of the rectangular frame (13) at symmetrical positions, the two cylindrical shells (16) are fixedly connected at one side away from the end of the moving block (14) and close to the rotating rod (9) with an exhaust pipe (17) penetrating the inner wall of the cylindrical shell (16), and the cylindrical shell (16) is fixedly connected at a position symmetrical to the exhaust pipe (17) with an air suction pipe (18) for cleaning waste residue on the coating surface, and the air suction pipe (18) penetrates the inner wall of the cylindrical shell (16); The dust suction mechanism further comprises a piston plate (19) slidably connected to the inner wall of the cylindrical shell (16), wherein there are two piston plates (19), and one end of the piston plate (19) away from the exhaust pipe (17) is fixedly connected to a moving rod (20), and one end of the moving rod (20) away from the piston plate (19) penetrates the cylindrical shell (16) and is fixedly connected to the moving block (14), and the moving rod (20) is movably connected to the cylindrical shell (16), and the inner wall of the exhaust pipe (17) close to the cylindrical shell (16) is fixedly connected to a one-way exhaust valve (171) for quantitatively discharging air from the inner wall of the cylindrical shell (16), and the inner wall of the suction pipe (18) close to the cylindrical shell (16) is fixedly connected to a one-way air intake valve (181) for sucking external air into the cylindrical shell (16), and the inner wall of the suction pipe (18) away from the one-way air intake valve (181) is fixedly connected to a stopper (182) for preventing waste residue from falling; When in use, the bearing platform (4) moves back and forth horizontally, so that the rotating rod (9) drives the first cylindrical cam (10) to rotate back and forth on a fixed axis under the action of the gear (11) and the tooth plate (12), and the slider (15) drives the moving block (14) to move back and forth horizontally. As the moving block (14) moves back and forth horizontally, the moving block (14) wipes and removes the pen marks on the coating film, and the moving block (14) pulls the moving rods (20) on both sides to move back and forth horizontally.

2. A water-based paint film hardness detection device according to claim 1, characterized in that: The sleeve (21) is also provided with an adjustment mechanism for causing the rectangular block (6) to turn 180 degrees, the adjustment mechanism comprising an electric push rod (22) fixedly connected to the top of the sleeve (21) and driving the second cylindrical cam (24) to move up and down and reciprocate, the output shaft on the electric push rod (22) passing through the sleeve (21) and fixedly connected to the second cylindrical cam (24), a connecting pipe (25) passing through the inner wall of the sleeve (21) is fixedly connected to the outer contour of the sleeve (21) at one end away from the electric push rod (22), and the inner wall of the connecting pipe (25) is movably connected to a limit block (26), and the end of the limit block (26) away from the connecting pipe (25) passes through a slide groove of the outer contour of the second cylindrical cam (24) and is movably connected.

3. A water-based paint film hardness detection device according to claim 2, characterized in that: Push switches (27) for activating the electric push rod (22) to perform telescopic and reciprocating movement are fixedly connected at symmetrical positions at both ends of the inner wall of the first slide groove (101).

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