Printing ink adhesive force testing machine

Abstract

The utility model belongs to the technical field of printing ink adhesive force testing, and particularly relates to a printing ink adhesive force testing machine which comprises a testing frame, two round rods are fixedly installed on the testing frame, the same sliding block is installed on the two round rods in a sliding mode, a rectangular rod is installed in the sliding block in a sliding mode, and the bottom end of the rectangular rod penetrates through the sliding block and is fixedly provided with a wiping block. A test plate is arranged on the test frame and below the wiping block; the fixing assembly is located on the testing frame and used for fixing the testing plate; the rotating disc is rotationally installed at the top of the testing frame and located at one ends of the two round rods, a connecting rod is rotationally installed at the top of the sliding block, and two limiting holes are formed in the top of the rotating disc. And large-area printing ink can be wiped and tested, so that the adhesive force of the large-area printing ink can be tested, and the testing range is wider.

Description

Technical Field

[0001] This utility model belongs to the field of ink adhesion testing technology, and in particular relates to an ink adhesion testing machine. Background Technology

[0002] Ink adhesion refers to the ability of ink to bond tightly to the surface of various substrates such as paper, plastic, and metal through physical adsorption, chemical bonding, and interfacial diffusion, ensuring that the printed images adhere firmly, resist external friction and weather erosion, and maintain their properties of not peeling or fading for a long time. Its magnitude is affected by a variety of factors such as the characteristics of the substrate, ink formulation, and printing process.

[0003] For example, Chinese patent CN213456609U discloses an ink adhesion testing machine, including a support frame, a transmission device, a control component, and a motor. The support frame includes a base plate, a top plate, and multiple columns. An anti-slip plate for supporting the test piece is located on the left side of the base plate, while the control component and motor are placed on the right side. The transmission device includes a disc, a connecting rod, a guide rail, a sliding block, a pull rod, and a flat block. The lower end of the disc is fixedly connected to the end of a rotating shaft provided with the motor. One end of the connecting rod is connected to the outer side of the disc, and the other end of the connecting rod is connected to the sliding block. The sliding block and the guide rail on the top plate form a guide rail fit. A vertical through hole is provided in the middle of the sliding block, which forms a sliding fit with the pull rod. The bottom of the pull rod is fixedly connected to the flat block, and the bottom of the flat block has a cleaning part that fits tightly against the anti-slip plate. The cleaning part is used to wipe the ink off the surface of the test piece. This invention replaces manual testing, greatly shortening the testing time and improving the accuracy and reliability of the test data.

[0004] The aforementioned patent has the following problems:

[0005] This patented device has several drawbacks in its use. For example, when testing ink adhesion, the limited reciprocating distance of the sliding block restricts its testing to small areas, preventing it from testing large areas. Furthermore, inks are typically applied to surfaces of various materials, and the anti-slip block is difficult to replace, making it impossible to test adhesion using anti-slip blocks made of different materials. Therefore, we propose an ink adhesion testing machine. Utility Model Content

[0006] The purpose of this invention is to provide an ink adhesion testing machine to solve the problems mentioned in the background art.

[0007] In view of this, the present invention provides an ink adhesion testing machine, comprising:

[0008] A test frame is provided, on which two round rods are fixedly installed. A sliding block is slidably installed on the two round rods. A rectangular rod is slidably installed inside the sliding block. The bottom end of the rectangular rod passes through the sliding block and is fixedly installed with a wiping block. A test plate is provided on the test frame and below the wiping block.

[0009] A fixing component, located on the test fixture, is used to fix the test board;

[0010] A turntable is rotatably mounted on the top of a test frame and located at one end of two round rods. A connecting rod is rotatably mounted on the top of a sliding block. Two limiting holes are opened on the top of the turntable. A sliding groove is opened inside the connecting rod and above the turntable. A limiting block is slidably mounted in the sliding groove. The bottom end of the limiting block passes through the bottom of the sliding groove and extends into one of the limiting holes. A threaded rod is rotatably mounted on the top of the limiting block. The top end of the threaded rod passes through the top of the sliding groove and is fixedly mounted with a knob.

[0011] A power assembly, located within the test frame, is used to drive the turntable to rotate.

[0012] In this technical solution, during use, personnel can apply ink to the top of the test plate, wait for the ink to dry completely, place the test plate on the test rack, and clamp and fix the test plate with the fixing components to ensure that personnel can easily change test plates of different materials for testing, and ensure that the adhesion of ink to different material surfaces can be tested.

[0013] Then, the operator can move the rectangular rod downwards, which will cause the wiping block to move downwards until the bottom of the wiping block touches the top surface of the test plate. At this point, the bottom of the wiping block will be in close contact with the ink on the test plate. Then, the power unit will drive the turntable to rotate, which will cause the two limiting holes to rotate. The rotation of one of the limiting holes will drive the sliding block to move back and forth through the limiting block and the connecting rod. This causes the sliding block to move back and forth on the two round rods. The back and forth movement of the sliding block will drive the wiping block to move back and forth through the rectangular rod. The back and forth movement of the wiping block can wipe the ink on the top of the test plate. The operator can judge the strength of the ink adhesion by observing the ink drop rate.

[0014] When testing the ink adhesion over a large area, the operator can rotate knob one. Rotating knob one will cause threaded rod one to rotate. Under the action of the thread, the rotation of threaded rod one will cause the limiting block to move upward until the bottom end of the limiting block moves out of one of the limiting holes. At this point, the limiting block can release the limiting block from the connecting rod. The operator can then move one end of the connecting rod to the edge of the turntable and rotate knob one. Rotating knob one will cause threaded rod one to rotate. Under the action of the thread, the rotation of threaded rod one will cause the limiting block to move downward until the bottom end of the limiting block inserts into the other limiting hole. At this point, the limiting block can limit the connecting rod. Because the rotation radius of the other limiting hole is larger, the distance of the sliding block's reciprocating movement will be larger, thus enabling the wiping block to perform wiping tests on a large area of ​​ink, ensuring that the ink adhesion can be tested over a large area, and providing a wider testing range.

[0015] In the above technical solution, the fixing component further includes:

[0016] A slide groove is formed inside the test frame and located at the bottom of the test plate. Clamping bars are slidably installed in the slide groove on both sides of the test plate. A bidirectional threaded rod is rotatably installed in the slide groove, with one end of the bidirectional threaded rod passing through the two clamping bars. A groove is formed inside the test frame and located on one side of the slide groove. A second motor is fixedly installed in the groove. The output end of the second motor passes through one side of the groove and is coaxially connected to the bidirectional threaded rod.

[0017] In this technical solution, personnel can apply ink to the top of the test plate and wait for the ink to dry completely. The personnel can then place the test plate on the test frame between two clamping bars. Subsequently, the personnel can start the second motor, and the output shaft of the second motor will drive the bidirectional threaded rod to rotate. Under the action of the thread, the rotation of the bidirectional threaded rod will drive the two clamping bars to move closer to each other. The two clamping bars moving closer to each other can clamp and fix the test plate, ensuring that personnel can easily change test plates of different materials for testing, and ensuring that the adhesion of ink to different material surfaces can be tested.

[0018] In the above technical solution, the bidirectional threaded rod is further threadedly connected to the clamping bar, the output shaft of the second motor is rotatably connected to the test frame, and the bidirectional threaded rod is provided with two sections of threads with opposite directions of rotation.

[0019] In this technical solution, it is ensured that the rotation of the bidirectional threaded rod can drive the two clamping bars to move closer or further apart, thus ensuring that the output shaft of the second motor can rotate normally within the test frame.

[0020] In the above technical solution, the power component further includes:

[0021] The mounting slot is located inside the test frame and below the turntable. A first motor is fixedly installed in the mounting slot, and the output end of the first motor passes through the top of the mounting slot and is coaxially connected to the turntable.

[0022] In this technical solution, starting the first motor causes the output shaft of the first motor to drive the turntable to rotate. The rotation of the turntable causes the two limiting holes to rotate. The rotation of one of the limiting holes causes the sliding block to reciprocate through the limiting block and the connecting rod. This causes the sliding block to reciprocate on the two round rods. The reciprocating movement of the sliding block causes the wiping block to reciprocate through the rectangular rod. The reciprocating movement of the wiping block can wipe the ink on the top of the test board. Personnel can judge the strength of the ink adhesion by observing the ink drop rate.

[0023] In the above technical solution, the output shaft of the first motor is rotatably connected to the test frame.

[0024] In this technical solution, it is ensured that the output shaft of the first motor can rotate normally within the test frame.

[0025] Furthermore, the above technical solution also includes:

[0026] The second threaded rod is threadedly installed inside the sliding block and located on one side of the rectangular rod. One end of the second threaded rod is fixedly installed with a rubber pad that contacts the rectangular rod, and the other end of the second threaded rod extends to the outside and is fixedly installed with a second knob.

[0027] In this technical solution, rotating knob two will cause threaded rod two to rotate, causing threaded rod two to move closer to the rectangular rod until the rubber pad at one end of threaded rod two abuts against the rectangular rod, at which point the rectangular rod can be limited.

[0028] In the above technical solution, the bottom end of the limiting block is inserted into the limiting hole, and the threaded rod is threadedly connected to the connecting rod.

[0029] In this technical solution, it is ensured that the bottom end of the limiting block can be inserted into the limiting hole, so that the threaded rod can move up and down inside the connecting rod when it rotates.

[0030] Furthermore, in the above technical solution, the rectangular rod and the wiping block are integrally formed.

[0031] In this technical solution, the structural stability of the rectangular rod and the wiping block is ensured.

[0032] The beneficial effects of this utility model are:

[0033] 1. This ink adhesion tester, through the setting of fixed components, and the cooperation of the fixed components, test plates and test frames, ensures that personnel can easily change test plates of different materials for testing, and guarantees that the adhesion of ink to different material surfaces can be tested.

[0034] 2. This ink adhesion tester, through the setting of a power component, and with the cooperation of the power component, turntable, limiting hole, limiting block, connecting rod, sliding block, rectangular rod, wiping block, knob one, and threaded rod one, ensures that the wiping block can wipe and test ink over a large area, thus guaranteeing the ability to test ink adhesion over a large area and providing a wider testing range. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0036] Figure 2 This is a detailed internal structural diagram of the test rack in this utility model;

[0037] Figure 3 This is a detailed internal structural diagram of the connecting rod in this utility model;

[0038] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0039] Figure 5 This is a cross-sectional structural diagram of the sliding block in this utility model;

[0040] Figure 6 This is a cross-sectional structural diagram of the test frame in this utility model;

[0041] Figure 7 This is a top view of the turntable in this utility model.

[0042] The markings in the diagram are as follows:

[0043] 1. Test frame; 2. Round rod; 3. Sliding block; 4. Connecting rod; 5. Turntable; 6. Limiting hole; 7. Sliding groove; 8. Limiting block; 9. Threaded rod one; 10. Knob one; 11. Mounting groove; 12. First motor; 13. Rectangular rod; 14. Wiping block; 15. Threaded rod two; 16. Rubber pad; 17. Knob two; 18. Sliding groove; 19. Clamping strip; 20. Test plate; 21. Bidirectional threaded rod; 22. Groove; 23. Second motor. Detailed Implementation

[0044] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0045] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0046] Example 1: This example provides an ink adhesion testing machine, including:

[0047] Test frame 1, two round rods 2 are fixedly installed on the test frame 1, the same sliding block 3 is slidably installed on the two round rods 2, a rectangular rod 13 is slidably installed inside the sliding block 3, the bottom end of the rectangular rod 13 passes through the sliding block 3 and a wiping block 14 is fixedly installed thereon, and a test plate 20 is provided on the test frame 1 and below the wiping block 14;

[0048] A fixing component is located on the test fixture 1 and is used to fix the test board 20.

[0049] Turntable 5 is rotatably mounted on the top of test frame 1 and located at one end of two round rods 2. A connecting rod 4 is rotatably mounted on the top of sliding block 3. Two limiting holes 6 are opened on the top of turntable 5. A sliding groove 7 is opened in the connecting rod 4 and above turntable 5. A limiting block 8 is slidably mounted in the sliding groove 7. The bottom end of the limiting block 8 passes through the bottom of the sliding groove 7 and extends into one of the limiting holes 6. A threaded rod 9 is rotatably mounted on the top of the limiting block 8. The top end of the threaded rod 9 passes through the top of the sliding groove 7 and a knob 10 is fixedly mounted thereon.

[0050] The power unit is located inside the test frame 1 and is used to drive the turntable 5 to rotate.

[0051] In use, personnel can apply ink to the top of the test plate 20 and wait for the ink to dry completely. Then, personnel can place the test plate 20 on the test frame 1 and clamp and fix the test plate 20 with the fixing components to ensure that personnel can easily change the test plate 20 of different materials for testing, and ensure that the adhesion of ink on different material surfaces can be tested.

[0052] Subsequently, the personnel can move the rectangular rod 13 downwards. The downward movement of the rectangular rod 13 will drive the wiping block 14 downwards until the bottom of the wiping block 14 touches the top surface of the test plate 20. At this time, the bottom of the wiping block 14 will be in close contact with the ink on the test plate 20. Then, the power component drives the turntable 5 to rotate. The rotation of the turntable 5 will drive the two limiting holes 6 to rotate. The rotation of one of the limiting holes 6 will drive the sliding block 3 to reciprocate through the limiting block 8 and the connecting rod 4, so that the sliding block 3 reciprocates on the two round rods 2. The reciprocating movement of the sliding block 3 will drive the wiping block 14 to reciprocate through the rectangular rod 13. The reciprocating movement of the wiping block 14 can wipe the ink on the top of the test plate 20. The personnel can judge the strength of the ink adhesion by observing the ink drop rate.

[0053] When testing the ink adhesion over a large area, the operator can rotate knob 10. Rotating knob 10 will cause threaded rod 9 to rotate. Under the action of the thread, the rotation of threaded rod 9 will cause limiting block 8 to move upward until the bottom end of limiting block 8 moves out of one of the limiting holes 6. At this time, limiting block 8 can release the limiting of connecting rod 4. The operator can then move one end of connecting rod 4 to the edge of turntable 5 and rotate knob 10. Rotating knob 10 will cause threaded rod 9 to rotate. Under the action of the thread, the rotation of threaded rod 9 will cause limiting block 8 to move downward until the bottom end of limiting block 8 is inserted into the other limiting hole 6. At this time, limiting block 8 can limit connecting rod 4. Because the rotation radius of the other limiting hole 6 is larger, the reciprocating distance of sliding block 3 will increase, thus enabling wiping block 14 to perform wiping tests on a large area of ​​ink, ensuring that ink adhesion tests can be performed on a large area, and making the testing range wider.

[0054] Example 2: This example provides an ink adhesion testing machine, which, in addition to the technical solutions of the above examples, also has the following technical features, including a fixing component:

[0055] A slide groove 18 is formed inside the test frame 1 and located at the bottom of the test plate 20. Clamping bars 19 are slidably installed inside the slide groove 18 and on both sides of the test plate 20. A bidirectional threaded rod 21 is rotatably installed inside the slide groove 18. One end of the bidirectional threaded rod 21 passes through the two clamping bars 19. A groove 22 is formed inside the test frame 1 and on one side of the slide groove 18. A second motor 23 is fixedly installed in the groove 22. The output end of the second motor 23 passes through one side of the groove 22 and is coaxially connected to the bidirectional threaded rod 21.

[0056] In this process, personnel can apply ink to the top of the test plate 20 and wait for the ink to dry completely. Then, personnel can place the test plate 20 on the test frame 1 between the two clamping bars 19. Subsequently, personnel can start the second motor 23. The output shaft of the second motor 23 will drive the bidirectional threaded rod 21 to rotate. Under the action of the thread, the rotation of the bidirectional threaded rod 21 will drive the two clamping bars 19 to move closer to each other. The two clamping bars 19 moving closer to each other can clamp and fix the test plate 20, ensuring that personnel can easily change the test plate 20 of different materials for testing, and ensuring that the adhesion of ink to different material surfaces can be tested.

[0057] Example 3: This example provides an ink adhesion tester, which, in addition to the technical solutions of the above examples, also has the following technical features: the bidirectional threaded rod 21 is threadedly connected to the clamping bar 19, the output shaft of the second motor 23 is rotatably connected to the test frame 1, and the bidirectional threaded rod 21 is provided with two sections of threads with opposite directions of rotation.

[0058] Specifically, it is ensured that the rotation of the bidirectional threaded rod 21 can drive the two clamping bars 19 to move closer or further apart, and that the output shaft of the second motor 23 can rotate normally within the test frame 1.

[0059] Example 4: This example provides an ink adhesion testing machine, which, in addition to the technical solutions of the above examples, also has the following technical features, including a power component:

[0060] Mounting slot 11 is located inside the test frame 1 and below the turntable 5. A first motor 12 is fixedly installed inside the mounting slot 11. The output end of the first motor 12 passes through the top of the mounting slot 11 and is coaxially connected to the turntable 5.

[0061] When the first motor 12 is started, the output shaft of the first motor 12 will drive the turntable 5 to rotate. The rotation of the turntable 5 will drive the two limiting holes 6 to rotate. The rotation of one of the limiting holes 6 will drive the sliding block 3 to reciprocate through the limiting block 8 and the connecting rod 4, so that the sliding block 3 reciprocates on the two round rods 2. The reciprocating movement of the sliding block 3 will drive the wiping block 14 to reciprocate through the rectangular rod 13. The reciprocating movement of the wiping block 14 can wipe the ink on the top of the test plate 20. Personnel can judge the strength of ink adhesion by observing the ink drop rate.

[0062] Example 5: This example provides an ink adhesion tester, which, in addition to the technical solutions of the above examples, also has the following technical features: the output shaft of the first motor 12 is rotatably connected to the test frame 1.

[0063] Among these measures, it is ensured that the output shaft of the first motor 12 can rotate normally within the test frame 1.

[0064] Example 6: This example provides an ink adhesion testing machine, which, in addition to the technical solutions of the above examples, also has the following technical features, and further includes:

[0065] Threaded rod 15 is threadedly installed inside sliding block 3 and located on one side of rectangular rod 13. One end of threaded rod 15 is fixedly installed with a rubber pad 16 that contacts rectangular rod 13, and the other end of threaded rod 15 extends to the outside and is fixedly installed with knob 17.

[0066] Rotating knob 17 will cause threaded rod 15 to rotate, bringing it closer to rectangular rod 13 until the rubber pad 16 at one end of threaded rod 15 abuts against rectangular rod 13, at which point rectangular rod 13 can be limited.

[0067] Example 7: This example provides an ink adhesion tester, which, in addition to the technical solutions of the above examples, also has the following technical features: the bottom end of the limiting block 8 is inserted into the limiting hole 6, and the threaded rod 9 is threadedly connected to the connecting rod 4.

[0068] Specifically, it ensures that the bottom end of the limiting block 8 can be inserted into the limiting hole 6, and that the threaded rod 9 can move up and down within the connecting rod 4 during rotation.

[0069] Example 8: This example provides an ink adhesion tester, which, in addition to the technical solutions of the above examples, also has the following technical features: the rectangular rod 13 and the wiping block 14 are integrally formed.

[0070] This ensures the structural stability of the rectangular rod 13 and the wiping block 14.

[0071] Working principle: During use, the operator can apply ink to the top of the test plate 20 and wait for the ink to dry completely. The operator can then place the test plate 20 on the test frame 1 between the two clamping bars 19. Subsequently, the operator can start the second motor 23. The output shaft of the second motor 23 will drive the bidirectional threaded rod 21 to rotate. Under the action of the thread, the rotation of the bidirectional threaded rod 21 will drive the two clamping bars 19 to move closer to each other. The two clamping bars 19 moving closer to each other can clamp and fix the test plate 20, ensuring that the operator can easily change the test plate 20 of different materials for testing, and ensuring that the adhesion of ink to different material surfaces can be tested.

[0072] Then, the operator can move the rectangular rod 13 downwards. This downward movement of the rectangular rod 13 will cause the wiping block 14 to move downwards until its bottom touches the top surface of the test plate 20. At this point, the bottom of the wiping block 14 will be in close contact with the ink on the test plate 20. Next, the operator rotates the knob 17. Rotating the knob 17 will cause the threaded rod 15 to rotate, bringing it closer to the rectangular rod 13 until the rubber pad 16 at one end of the threaded rod 15 touches the rectangular rod 13. At this point, the rectangular rod 13 can be stopped, and then the first motor can be started. 12. The output shaft of the first motor 12 will drive the turntable 5 to rotate. The rotation of the turntable 5 will drive the two limiting holes 6 to rotate. The rotation of one of the limiting holes 6 will drive the sliding block 3 to reciprocate through the limiting block 8 and the connecting rod 4, so that the sliding block 3 reciprocates on the two round rods 2. The reciprocating movement of the sliding block 3 will drive the wiping block 14 to reciprocate through the rectangular rod 13. The reciprocating movement of the wiping block 14 can wipe the ink on the top of the test plate 20. Personnel can judge the strength of ink adhesion by observing the ink drop rate.

[0073] When testing the ink adhesion over a large area, the operator can rotate knob 10. Rotating knob 10 will cause threaded rod 9 to rotate. Under the action of the thread, the rotation of threaded rod 9 will cause limiting block 8 to move upward until the bottom end of limiting block 8 moves out of one of the limiting holes 6. At this time, limiting block 8 can release the limiting of connecting rod 4. The operator can then move one end of connecting rod 4 to the edge of turntable 5 and rotate knob 10. Rotating knob 10 will cause threaded rod 9 to rotate. Under the action of the thread, the rotation of threaded rod 9 will cause limiting block 8 to move downward until the bottom end of limiting block 8 is inserted into the other limiting hole 6. At this time, limiting block 8 can limit connecting rod 4. Because the rotation radius of the other limiting hole 6 is larger, the reciprocating distance of sliding block 3 will increase, thus enabling wiping block 14 to perform wiping tests on a large area of ​​ink, ensuring that ink adhesion tests can be performed on a large area, and making the testing range wider.

[0074] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An ink adhesion tester characterized by, include: Test frame (1), on which two round rods (2) are fixedly installed, and the same sliding block (3) is slidably installed on the two round rods (2). A rectangular rod (13) is slidably installed inside the sliding block (3). The bottom end of the rectangular rod (13) passes through the sliding block (3) and is fixedly installed with a wiping block (14). A test plate (20) is provided on the test frame (1) and below the wiping block (14). A fixing component is located on the test fixture (1) and is used to fix the test plate (20); Turntable (5), the turntable (5) is rotatably mounted on the top of the test frame (1) and located at one end of the two round rods (2), the top of the sliding block (3) is rotatably mounted with a connecting rod (4), the top of the turntable (5) has two limiting holes (6), the connecting rod (4) is provided with a sliding groove (7) located above the turntable (5), the sliding groove (7) is slidably mounted with a limiting block (8), the bottom end of the limiting block (8) passes through the bottom of the sliding groove (7) and extends into one of the limiting holes (6), the top end of the limiting block (8) is rotatably mounted with a threaded rod (9), the top end of the threaded rod (9) passes through the top of the sliding groove (7) and is fixedly mounted with a knob (10); A power assembly located within the test frame (1) is used to drive the turntable (5) to rotate.

2. The ink adhesion tester of claim 1, wherein, The fixing component includes: A slide groove (18) is formed inside the test frame (1) and located at the bottom of the test plate (20). Clamping strips (19) are slidably installed inside the slide groove (18) and on both sides of the test plate (20). A bidirectional threaded rod (21) is rotatably installed inside the slide groove (18). One end of the bidirectional threaded rod (21) passes through the two clamping strips (19). A groove (22) is formed inside the test frame (1) and on one side of the slide groove (18). A second motor (23) is fixedly installed inside the groove (22). The output end of the second motor (23) passes through one side of the groove (22) and is coaxially connected to the bidirectional threaded rod (21).

3. The ink adhesion tester of claim 2, wherein, The bidirectional threaded rod (21) is threadedly connected to the clamping bar (19), and the output shaft of the second motor (23) is rotatably connected to the test frame (1). The bidirectional threaded rod (21) is provided with two sections of threads with opposite directions of rotation.

4. The ink adhesion tester of claim 1, wherein, The power assembly includes: The mounting slot (11) is located inside the test frame (1) and below the turntable (5). A first motor (12) is fixedly installed inside the mounting slot (11). The output end of the first motor (12) passes through the top of the mounting slot (11) and is coaxially connected to the turntable (5).

5. The ink adhesion tester of claim 4, wherein, The output shaft of the first motor (12) is rotatably connected to the test frame (1).

6. The ink adhesion tester of claim 1, wherein, Also includes: Threaded rod two (15) is installed in the sliding block (3) and located in one side of the rectangular rod (13), one end of the threaded rod two (15) is fixedly installed with rubber pad (16) in contact with the rectangular rod (13), the other end of the threaded rod two (15) extends to the outside and is fixedly installed with knob two (17).

7. The ink adhesion tester of claim 1, wherein, The bottom end of the limiting block (8) is inserted into the limiting hole (6), and the threaded rod one (9) is screwed with the connecting rod (4).

8. The ink adhesion tester of claim 1, wherein, The rectangular rod (13) and the wiping block (14) are integrally formed.

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