Coating scriber

Abstract

The invention relates to a coating scriber which comprises a fixed seat, guide rails, a movable table, a knife rest and a scribing knife, the guide rails are double guide rails, the double guide rails are fixedly arranged on the fixed seat at intervals, guide grooves are formed in the inner side walls of the double guide rails, sliding blocks are arranged at the two ends of the movable table respectively, the shape of the sliding blocks is matched with that of the guide grooves, the knife rest is arranged on the movable table, and the scribing knife is arranged on the knife rest. The marking knife is adjustably connected to the knife rest, and a knife point of the marking knife downwards inclines and extends to the position above the fixing base by an angle alpha. A rotating shaft is arranged on the knife rest, a shaft hole is formed in a knife handle of the marking knife, the rotating shaft penetrates through the shaft hole in the marking knife, a threaded section is arranged on the rotating shaft, a locking nut is arranged on the threaded section, the marking knife is fixedly connected with the knife rest through the locking nut, a spring bolt is arranged on the knife handle of the marking knife, and a lock catch assembly is arranged on the knife rest. The lock catch assembly is matched with the spring bolt to lock and fix the marking knife. The marking device is simple in structure and easy and convenient to operate, the marking direction and the marking pressure can be stable, and marking of coating plates of the same batch can be consistent.

Description

Technical Field

[0001] This invention relates to the field of coating inspection technology, and in particular to a coating scribing tool. Background Technology

[0002] With the rapid development of modern industry, the requirements for industrial coatings have become increasingly stringent, especially for coatings used on aluminum-based and iron-based workpieces. Salt spray testing is the most effective means of evaluating the corrosivity of paint films. It is used to simulate the atmospheric environmental conditions of coastal areas and is considered the most traditional, useful, and widely used accelerated corrosion test. It can be used to determine the uniformity of coating thickness, porosity, and the extent of corrosion spread under salt spray conditions. It is mainly used to assess the quality of different production batches and to research and screen new coatings. Therefore, it is of great significance for examining the protective performance of material surface coatings and evaluating corrosion resistance.

[0003] The neutral salt spray test is an important method for evaluating the corrosion resistance of coatings. Common methods include scribing and non-scribing. Scribing accelerates the corrosion process during the neutral salt spray test. However, the quality of the scribing is crucial for evaluation. Traditionally, scribing is done manually with a gold pen, which introduces a significant human factor and greatly affects the evaluation. (Publication number: CN 104330354) Patent A discloses a precision coating scribing tool, specifically including a base with a test piece platform that can move horizontally on the base. One end of the base is equipped with an inverted "L"-shaped support bracket. The support bracket is divided into a first support section, a second support section, and a third support section. A first pulley is pivotally mounted on the first support section, a second pulley is pivotally mounted on the second support section, and a lever arm (16) is pivotally mounted on the third support section via a fixed shaft. One end of the lever arm is equipped with a lever arm balancer, and the other end is fixedly equipped with a cutter head adapted to the moving plane of the test piece platform. The fixed shaft is located in the middle of the lever arm, and the fixed shaft is connected to the force arm. One end of a pull rope is fixedly connected to the lever arm between the arm balancers. This rope passes sequentially around the second pulley and the first pulley before being suspended and connected to a weight holder for placing weights. A lever arm state controller is installed below the second support section. This controller keeps the lever arm in either a stopped or working state: when the lever arm is stopped, the end of the lever arm away from the cutter head sinks, and the cutter head rises; when the lever arm is working, the lever arm state controller releases the lever arm. Under the combined action of the weight holder and the lever arm balancer, the end of the lever arm away from the cutter head rises, the cutter head sinks, and the cutter head contacts the specimen on the specimen platform, ready for marking. The disadvantage of this scheme is its complex structure, which uses lever mechanisms, pulley systems, and weights, and also requires components such as a lever arm state controller. This complex structure leads to significant losses in force transmission and poor accuracy. Furthermore, this type of scribing device requires manual adjustment of the force applied to the cutter head by changing weights. The applied force, after adjustment via levers and the weight of the lever arm balancer, must also consider the weight of the cutter holder connected to the cutter head. The applied force differs significantly from the weight of the weights. Although the magnitude of the force applied to the cutter head is adjustable, it cannot be accurately determined. In addition, in this solution, the cutter head is stationary, and the line is drawn on the coating panel by moving the panel under test. During scribing, because the cutter head is connected to the lever, if the coating surface is uneven, the cutter head may jump, thus changing the accuracy of the applied force. Moreover, in this patented solution, the test piece platform can only move horizontally, and the cutter head cannot move perpendicular to the guide rail. Therefore, only one line can be drawn on the coating panel under test, instead of multiple lines drawn at intervals as required by the testing requirements. Thus, improvements to the existing coating scribing device are necessary. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of existing coating mixing equipment described in the background art, such as complex marking device structure, need for multiple force and lever arm transmissions through lever structure, poor accuracy, and inability to accurately adjust the pressure of the cutter head acting on the coating plate to be tested, and to provide a coating marking device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A coating marking device includes a fixed base, guide rails, a movable stage, a tool holder, and a marking blade. The guide rails are double guide rails, fixedly mounted on the fixed base at intervals. Guide grooves are provided on the inner sidewalls of the double guide rails. Slider blocks are provided at both ends of the movable stage, and the shapes of the sliders match the guide grooves. The tool holder is mounted on the movable stage, and the marking blade is adjustablely connected to the tool holder. The tip of the marking blade extends downward at an angle α to above the fixed base. A coating plate fixing area is provided on the fixed base, located between the double guide rails. The coating plate can be fixed to the coating plate fixing area by a fastener. A rotating shaft is provided on the tool holder, and a shaft hole is provided on the handle of the marking blade. The rotating shaft passes through the shaft hole on the marking blade. A threaded section is provided on the rotating shaft, and a locking nut is provided on the threaded section. The marking blade is fixedly connected to the tool holder by the locking nut. A locking tongue is provided on the handle of the marking blade, and a locking assembly is provided on the tool holder. The locking assembly cooperates with the locking tongue to lock and fix the marking blade.

[0006] In the above solution, the locking assembly is equipped with a tension adjuster, the output end of which is connected to the locking buckle. By setting the tension adjuster, the tension acting on the scribing blade can be visually observed on the tension adjuster. The pressure exerted by the blade tip on the coating surface to be tested can be calculated by calculating the blade length. Preferably, the connection position between the scribing blade and the rotating shaft can be set at the midpoint of the scribing blade, and the locking tongue can be set at the end of the scribing blade. In this way, the tension displayed on the tension adjuster is equal to the force exerted by the scribing blade on the coating panel to be tested, thereby allowing for easy adjustment of the scribing force.

[0007] In the above scheme, the included angle α between the scribing blade and the fixed base is 15°-60°. With this setting, the blade tip of the scribing blade contacts the surface of the coating to be tested at an inclined angle α, increasing the contact length between the blade tip and the surface of the coating. During scribing, the rear end of the blade tip first scribes on the coating surface, and from the rear end to the tip, the scribing force and depth gradually increase, allowing the scribing depth to reach the substrate surface at the bottom of the coating, improving the accuracy of subsequent salt spray testing. Furthermore, by adjusting the included angle α between the scribing blade and the fixed base, the scribing blade can adapt to scribing coatings of different thicknesses. For example, for a thicker coating, the included angle α can be decreased; for a thinner coating, the included angle α can be increased, allowing the coating scribing device of this invention to adapt to scribing operations on coatings of different thicknesses.

[0008] In the above scheme, the sliders at both ends of the moving stage are bearings, which are connected to the moving stage via connecting shafts. The inner ring of the bearing is fixedly connected to the connecting shaft, and the outer ring of the bearing is clearance-fitted with the guide groove. This arrangement reduces the frictional resistance between the slider and the guide rail, making the movement of the moving stage relative to the guide rail more stable.

[0009] In the above design, the bottom of the movable stage is equipped with rollers, the bottom of which contacts the fixed base. This arrangement allows the movable stage to move more smoothly along the guide rail on the fixed base.

[0010] In the above scheme, the moving platform is equipped with an adjustable horizontal sliding seat, the sliding direction of which is perpendicular to the direction of the double guide rails, and the tool holder is fixedly connected to the horizontal sliding seat. With this configuration, after completing one scribing operation, the scribing tool can be moved a certain distance by adjusting the position of the horizontal sliding seat, making it convenient to draw multiple parallel lines on the coating panel to be tested.

[0011] A scale is provided next to the horizontal sliding seat, and marking lines are provided on the horizontal sliding seat, with the marking lines opposite to the scale. A slide rail is provided on the moving platform, and the slide rail is arranged in a direction perpendicular to the double guide rail. The horizontal sliding seat is slidably connected to the slide rail, and a position locking component is provided on the horizontal sliding seat. By designing the scale and marking lines, lines can be drawn on the coating plate to be tested at set intervals. By setting the position locking component, the relative position between the horizontal sliding seat and the guide rail can be fixed, ensuring the stability of the scribing blade position during the scribing process.

[0012] In the above solution, a driving device is provided on the fixed base. The driving device is used to push the moving base to move along the direction of the double guide rails, so that the scribing knife scribing lines on the coating panel to be tested at a set speed. By setting the driving device, the moving base can scribing lines on the coating panel at a set speed, making the scribing resistance more uniform and the scribing lines more symmetrical.

[0013] In the above scheme, the coating plate fixing area is provided with at least two stops, which are used to limit the different sides of the coating plate to be tested. By setting the stops, the coating plate to be tested can be quickly positioned in the coating plate fixing area. The shape and position of the stops can be set as needed. For example, the stops can include two L-shaped stops, which can be respectively set at two diagonal positions of the rectangular coating plate to be tested. The right angle and sides of the two stops can limit the coating plate to be tested, eliminating the need to fix the coating plate to be tested with conventional bolts and pressure plates, which simplifies the equipment structure and the loading and unloading of the coating plate to be tested.

[0014] The present invention has the following positive effects: 1) In the coating scribing device of the present invention, the coating plate to be tested is fixed in the coating plate fixing area on the fixing base during scribing. The moving stage slides along the double guide rails, driving the scribing blade to scrib on the coating plate to be tested. Only the tilt angle between the scribing blade and the coating plate to be tested and the pressure of the scribing blade tip on the coating plate to be tested in the initial state need to be adjusted to complete the scribing on the coating plate to be tested. The operation is simple and can stabilize the scribing direction and scribing pressure. At the same time, because the angle and pressure of the scribing blade are set, the scribing operation can be performed on a batch of coating plates, so that the scribing pressure and scribing depth are the same in the same batch. 2) The coating scribing device of the present invention has a scribing blade tilted, which can increase the contact range between the scribing blade and the coating panel, making the scribing neater and reducing the generation of scribing burrs. Moreover, the coating scribing device can be applied to the scribing operation of coating plates of different thicknesses, expanding its application range. For coating plates of different thicknesses, only the tilt angle of the scribing blade needs to be adjusted, and the operation is very simple. 3) The coating scribing device of the present invention allows adjustment of the angle and pressure between the scribing blade and the coating panel to be tested by adjusting the locking length of the locking assembly. After adjusting the angle and pressure, the scribing blade can be locked by tightening the locking nut, fixing the angle of the scribing blade and ensuring that the scribing blade maintains the same pressure on the coating panel to be tested, preventing the scribing blade from jumping during the scribing process and making the scribing process more stable. 4) The coating scribing device of the present invention has a simplified structure, is easy to manufacture, maintain and operate, and the control of force and torque is very simple with minimal force loss. It can accurately control the pressure of the scribing blade on the coating panel to be tested, improving the scribing quality. Attached Figure Description

[0015] Figure 1 This is a top view of the coating scribing device of the present invention.

[0016] Figure 2 This is a schematic diagram showing the connection between the scribing tool and the locking assembly.

[0017] The attached figures are labeled as follows: fixed base 1, guide rail 2, guide groove 21, moving table 3, bearing 31, tool holder 4, lug 41, rotating shaft 42, locking nut 43, elastic washer 44, scribing knife 5, locking tongue 51, locking assembly 52, tension adjuster 53, hook groove 54, mounting bracket 55, horizontal sliding seat 6, slide rail 61, drive device 7, and stop block 8. Detailed Implementation

[0018] The technical solution of the present invention will be clearly and completely described below through embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figure 1 As shown, the coating scribing device of the present invention includes a fixed base 1, a guide rail 2, a moving platform 3, a blade holder 4, and a scribing blade 5.

[0020] The fixed base 1 can be set as needed, and can be a testing table or a certain area of ​​a workshop.

[0021] The guide rail 2 is a double guide rail, with the two guide rails 2 set at a certain interval. The guide rails 2 can be metal guide rails. Guide grooves 21 are provided on the opposite sides of the two guide rails 2. The groove shape of the guide grooves 21 can be set as needed, for example, it can be a T-shaped groove or a rectangular groove.

[0022] The movable stage 3 can be a flat movable stage. Sliders are provided at both ends of the movable stage 3. The two sliders are respectively set in the guide grooves 21 on the guide rail 2, and the sliders slide with the guide rail 2.

[0023] In the first implementation, the slider can be designed to match the groove shape of the guide groove. The slider and the guide groove are fitted with a gap, which can be adjusted according to the actual situation. For example, it can be designed to be 0.3 mm - 1 mm.

[0024] In a second implementation, the slider can be a bearing 31, which is connected to the moving stage 3 via a connecting shaft. The inner ring of the bearing 31 is fixedly connected to the connecting shaft, and the outer ring of the bearing 31 is clearance-fitted with the guide groove 21. This arrangement reduces the frictional resistance between the slider and the guide rail 2, making the movement of the moving stage 3 relative to the guide rail 2 more stable.

[0025] To make the movement of the moving stage 3 smoother, rollers can be installed at the bottom of the moving stage 3. The bottom of the rollers contacts the fixed base 1. Furthermore, the number of rollers can be designed as needed, for example, 2-4 sets of rollers can be designed. Preferably, the position of the rollers can be designed to avoid the position of the coating panel to be tested.

[0026] The tool holder 4 can be designed as a double-ear tool holder with two lugs 41, each with a pivot hole. The scribing blade 5 is positioned between the two lugs 41. The pivot 42 passes through the pivot holes on the two lugs 41 and the pivot hole on the scribing blade 5, allowing the scribing blade 5 to rotate relative to the tool holder 4. A threaded section can be designed on the pivot 42, and a locking nut 43 can be designed on the threaded section of the pivot 42. The double-ear tool holder can be designed as a deformable tool holder. As the locking nut 43 is tightened, the double-ear tool holder can clamp the scribing blade 4, thus fixing the scribing blade 4. To improve the locking effect of the scribing blade 4, several elastic washers 44 can also be set between the scribing blade 4 and the lugs 41. When the locking nut 43 is tightened, the elastic washers 44 deform and increase the friction on the scribing blade, thus improving the fixing effect of the scribing blade 5.

[0027] In another embodiment, the rotating shaft 42 can be fixedly connected to the scribing knife 5. The double-ear knife holder is provided with a rotating shaft groove that mates with the rotating shaft 42. The rotating shaft 52 is provided with a threaded section and a locking nut 43 is provided on the threaded section. When the locking nut 43 is locked, the rotating shaft 42 can be fixedly connected to the lug 41 of the double-ear knife holder, thereby fixing the angle of the scribing knife 5.

[0028] The tool holder 4 can be positioned near the tail end of the moving stage 3. When the scribing knife 5 is fixedly connected to the tool holder 4 at a set angle, the lower part of the scribing knife 5 extends downward at an angle α to the coating plate to be tested on the fixed base 1 to scribing the coating panel to be tested.

[0029] like Figure 2As shown, a locking tongue 51 is provided on the handle of the scribing blade 5. The locking tongue 51 can be located on the upper rear side of the scribing blade 5, and the inner side of the locking tongue 51 can be configured as a concave hook-shaped groove 54. A locking assembly 52 is provided on the blade holder 4. The locking assembly 52 can be an existing locking assembly. The locking assembly 52 cooperates with the locking tongue 51 to lock and fix the scribing blade 5. The locking assembly 52 can be hinged to the mounting bracket 55 on the horizontal sliding seat 6. Preferably, the locking assembly 52 can be an adjustable locking assembly. More preferably, the locking assembly 52 can be equipped with a tension adjuster 53. The output end of the tension adjuster 53 is connected to the locking assembly. The overall length of the locking assembly can be adjusted by the tension adjuster 53, thereby adjusting the locking force of the locking assembly. During assembly, the tension adjuster 53 can be adjusted first to lengthen the locking assembly, allowing it to fit into the hook groove 54 on the scribing blade. Then, the tension adjuster 53 is hinged to the mounting bracket 55. The tail end of the tension adjuster 53 can be hinged to the mounting base via a connecting shaft and a nut. During use, the tension adjuster 53 only needs to be adjusted to shorten the length of the locking assembly and gradually increase the tension exerted by the locking assembly on the scribing blade 5. When the tension reaches the set value, the locking nut 43 on the blade holder 4 can be rotated to completely fix the scribing blade 5 to the blade holder 4. By setting the tension adjuster 53, the tension acting on the scribing blade can be seen intuitively on the tension adjuster 53. The pressure of the blade tip acting on the coating surface to be tested can be calculated by the lever torque formula. More preferably, the connection position between the scribing blade 5 and the rotating shaft 42 can be set at the midpoint of the scribing blade 5, and the position of the locking tongue 51 can be set at the end of the scribing blade 5. In this way, the lever arm length at the blade tip is equal to the lever arm length at the locking tongue 51. The tension displayed on the tension adjuster 53 is equal to the force of the scribing blade 5 acting on the coating panel to be tested. Therefore, the tension displayed on the tension adjuster 53 is the pressure of the blade tip acting on the coating panel to be tested, making the pressure adjustment more convenient.

[0030] The design of the locking assembly 52 not only makes it easy to adjust the pressure of the scribing knife on the panel to be tested, but also allows the angle of the scribing knife 5, the rotating shaft 42 and the knife holder 4 to be fixed, so as to tighten the locking nut 43 and fix the scribing knife 5 and the knife holder 4, making the scribing knife more stable during the scribing process and improving the scribing quality.

[0031] Preferably, the angle α between the scribing blade 5 and the fixed base 1 is 15°-60°. With this setting, the tip of the scribing blade 5 contacts the surface of the coating to be tested at an angle α, increasing the contact length between the tip and the surface. During scribing, the rear end of the blade tip first scribes on the coating surface, and from the rear end to the tip, the scribing force and depth gradually increase, allowing the scribing depth to reach the substrate surface at the bottom of the coating, thus improving the accuracy of subsequent salt spray testing. Furthermore, by adjusting the angle α between the scribing blade 5 and the fixed base 1, the scribing blade 5 can adapt to scribing coatings of different thicknesses. For example, for a thicker coating, the angle α can be decreased; for a thinner coating, the angle α can be increased, allowing the coating scribing device of this invention to adapt to scribing operations on coatings of different thicknesses.

[0032] Preferably, the moving stage 3 is equipped with an adjustable horizontal sliding seat 6, the sliding direction of which is perpendicular to the direction of the double guide rails 2, and the knife holder 4 is fixedly connected to the horizontal sliding seat 6. With this configuration, after completing one scribing operation, the scribing knife can be moved a certain distance by adjusting the position of the horizontal sliding seat, making it easier to draw multiple parallel lines on the coating panel to be tested. If the position of the horizontal sliding seat is adjusted manually, a locking component relative to the guide rails needs to be provided on the horizontal sliding seat 6 so that the horizontal sliding seat 6 can be fixed in the set position after it is moved, preventing the scribing knife from shifting during the scribing process and causing scribing failure.

[0033] More preferably, a ruler is provided next to the horizontal sliding seat 6, and marking lines are provided on the horizontal sliding seat 6, with the marking lines opposite to the ruler. A slide rail 61 is provided on the moving stage 3, and the slide rail 61 is arranged in a direction perpendicular to the double guide rails 2. The horizontal sliding seat 6 and the slide rail 61 are slidably connected. By designing the ruler and marking lines, lines can be drawn on the coating plate to be tested at set intervals.

[0034] Preferably, a driving device 7 is provided on the fixed base 1. The driving device 7 is used to push the moving stage 3 to move along the direction of the double guide rails 2, so that the scribing knife 5 scribing lines on the coating panel to be tested at a set speed. By setting the driving device, the moving stage 3 can scribing lines on the coating panel at a set speed, making the scribing resistance more uniform, the scribing lines more symmetrical, and avoiding burrs on both sides of the scribing.

[0035] In the above scheme, the coating plate fixing area is provided with at least two stops 8, which are used to limit the different sides of the coating plate to be tested. By setting the stops 8, the coating plate to be tested can be quickly positioned in the coating plate fixing area. The shape and position of the stops 8 can be set as needed. For example, the stops 8 can include two L-shaped stops 8, which can be respectively set at two diagonal positions of the rectangular coating plate to be tested. The right angle and sides of the two stops 8 can limit the coating plate to be tested, eliminating the need to fix the coating plate to be tested with conventional bolts and pressure plates, which simplifies the equipment structure and the loading and unloading of the coating plate to be tested.

[0036] In use, the coating scribing device of this invention can be operated by first loosening the locking nut on the rotating shaft and the locking assembly, then adjusting the tension adjuster to a smaller tension value. The coating plate to be tested is placed in the coating plate fixing area on the fixed base. The moving stage is moved above the coating plate to be tested, so that the tip of the scribing blade rests against the coating plate. The locking assembly is then locked to the locking tongue on the scribing blade. The tension value on the tension adjuster is adjusted to shorten the length of the locking assembly, correspondingly increasing the force exerted by the locking assembly on the scribing blade until the tension is adjusted to the set tension value. At this point, the force exerted by the tip of the scribing blade on the coating plate is the set pressure. The locking nut on the scribing blade rotating shaft is then tightened to fix the scribing blade to the blade holder, thus determining the angle of the scribing blade and the force acting on the coating plate. The moving stage then moves along the double guide rails, and the scribing blade can then be placed on the coating plate to be tested. The process involves scribing lines onto the coating board. After completing one line, the scribing blade moves to a position away from the surface of the coating board. A horizontal sliding block moves the blade holder and scribing blade a certain distance, removing the scribing blade from the area of ​​the coating board. The moving stage can then be pushed along the double guide rails back to its initial position. The horizontal sliding block is then moved again to separate the scribing blade from the first scribing position by a certain distance. The moving stage is then pushed along the double guide rails to scribing the second line. This process is repeated to set the scribing spacing and complete any number of scribing lines on the coating board. After completing the predetermined scribing task, the coating board can be removed and replaced with a new one. The scribing process is repeated using the same method. In subsequent scribing processes within the same batch, it is not necessary to adjust the angle and pressure of the scribing blade, ensuring the consistency of the scribing lines on the same batch of coating boards. To facilitate control of the scribing process, a drive device can be used to automate the process. This drive device can be a motor and a lead screw transmission mechanism. By moving the moving table, the speed of movement becomes uniform, resulting in smoother scribing lines and preventing burrs. If a corresponding drive device is also installed on the horizontal sliding seat to control its sliding along a direction perpendicular to the double guide rails, and a controller manages the sliding speed, timing, and sequence of both drive devices, automatic scribing of the coated board can be achieved, further saving labor and improving work efficiency.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coated marking tool, characterized in that, The device includes a fixed base, guide rails, a movable stage, a tool holder, and a scribing blade. The guide rails are double guide rails, fixedly mounted on the fixed base at intervals. Guide grooves are provided on the inner sidewalls of the double guide rails. Slider blocks are provided at both ends of the movable stage, and the shapes of the sliders match the guide grooves. The tool holder is mounted on the movable stage, and the scribing blade is adjustablely connected to the tool holder. The tip of the scribing blade extends downward at an angle α to above the fixed base. A coating plate fixing area is provided on the fixed base, located between the double guide rails. The coating plate can be fixed to the coating plate fixing area by a fastener. The tool holder has a rotating shaft, and the handle of the scribing blade has a shaft hole. The rotating shaft passes through the shaft hole on the scribing blade. A threaded section is provided on the rotating shaft, and a locking nut is provided on the threaded section. The scribing blade is fixedly connected to the tool holder by the locking nut. A locking tongue is provided on the handle of the scribing blade, and a locking assembly is provided on the tool holder. The locking assembly cooperates with the locking tongue to lock and fix the scribing blade.

2. The coating scribing device according to claim 1, characterized in that: The locking assembly is equipped with a tension adjuster, and the output end of the tension adjuster is connected to the locking buckle.

3. The coating scribing device according to claim 1, characterized in that: The angle α between the scribing blade and the fixed base is 15°-60°.

4. The coating scribing device according to claim 1, characterized in that: The sliders at both ends of the moving stage are bearings. The bearings are connected to the moving stage through a connecting shaft. The inner ring of the bearing is fixedly connected to the connecting shaft, and the outer ring of the bearing is clearance-fitted with the guide groove.

5. The coating scribing device according to claim 1, characterized in that: The bottom of the mobile platform is equipped with rollers, and the bottom of the rollers contacts the fixed base.

6. The coating scribing device according to claim 1, characterized in that: The moving platform is equipped with an adjustable horizontal sliding seat. The sliding direction of the horizontal sliding seat is perpendicular to the direction of the double guide rails, and the tool holder is fixedly connected to the horizontal sliding seat.

7. The coating scribing device according to claim 6, characterized in that: A scale is provided next to the horizontal sliding seat, and a marking line is provided on the horizontal sliding seat. The marking line is set opposite to the scale. A slide rail is provided on the moving platform. The slide rail is set in a direction perpendicular to the double guide rail. The horizontal sliding seat is slidably connected to the slide rail. A position locking component is provided on the horizontal sliding seat.

8. The coating scribing device according to claim 1, characterized in that: A drive device is provided on the fixed base. The drive device is used to push the moving base to move along the direction of the double guide rails, so that the scribing knife scribing lines on the coating panel to be tested at a set speed.

9. The coating scribing device according to claim 1, characterized in that: The coating plate fixing area is provided with at least two blocks, which are used to limit the different sides of the coating plate to be tested.

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