Improved abrasion resistance testing equipment

Abstract

The utility model relates to the technical field of printed matter quality detection, in particular to improved abrasion resistance testing equipment which comprises an operation table, a control panel and a friction plate are arranged on the operation table, a to-be-detected sample is arranged on the friction plate, and a friction head is arranged on the operation table and located above the friction plate in a sliding mode. A driving piece for driving the friction head to slide in a reciprocating manner is arranged on the operating table, a pressure adjusting assembly is arranged on the friction head and comprises an elastic rubber mat arranged on the friction head, the friction paper is located between the elastic rubber mat and a to-be-detected sample, and a fixing piece for fixing the friction paper on the friction head is arranged on the friction head. The device and the method have the effect of improving the accuracy of wear resistance test data of thicker paper and paperboards.

Description

Technical Field

[0001] The present application relates to the technical field of printed product quality inspection, and in particular to an improved abrasion resistance testing device. Background Art

[0002] In testing the abrasion resistance of printed materials, clean offset paper is typically used as the friction paper. However, with the development of the industry and the diversification of needs, offset paper is no longer the only friction paper used when examining the abrasion resistance of different types of printed materials. Instead, the printed material itself or the substrate used by the printed material is used as the friction paper to simulate the friction between stacked printed materials. However, when the printed material is thick or corrugated cardboard, the friction paper is difficult to fix, which may affect the accuracy of the results.

[0003] Abrasion resistance is a key quality indicator for printed products, directly impacting their durability and performance. This is because printed products experience friction during packaging, transportation, and handling. This friction can cause the ink (pigment) printed on the substrate to fall off, affecting the product's message and appearance. To ensure the product's appearance and quality, the surface ink layer of printed products is typically subject to quality regulations and inspections.

[0004] Chinese patent publication number CN217237606U discloses an anti-friction device, including an operating table, an installation box provided on the operating table, and an installation box arranged along the length direction of the operating table. A fixing device for horizontally fixing a sample is provided on the upper surface of the operating table, located in front of the installation box. A friction weight is provided on the top of the sample, and a friction plate is installed on the lower surface of the friction weight. A driving component for driving the friction weight to rub along the length direction of the operating table is provided in the installation box.

[0005] During the use of the above technology, when the friction paper is thicker paper, cardboard or corrugated box paper, the printed matter on the friction plate cannot fit tightly with the surface of the printed matter on the friction head, thereby affecting the accuracy of the evaluation of the wear resistance of the printed matter, and further affecting the accuracy of the friction results between the printed matters, and there are shortcomings. Utility Model Content

[0006] In order to improve the accuracy of abrasion resistance testing of printed materials such as thick paper or corrugated boxes, the present application provides an improved abrasion resistance testing device.

[0007] The improved abrasion resistance testing equipment provided in this application adopts the following technical solutions:

[0008] An improved wear resistance testing device includes an operating table, a control panel is provided on the operating table, a friction plate is provided on the operating table, a sample to be tested is provided on the friction plate, a friction head is slidably provided on the operating table and above the friction plate, a driving part is provided on the operating table for driving the friction head to slide back and forth, a pressure adjustment assembly is provided on the friction head, the pressure adjustment assembly includes an elastic rubber pad provided on the friction head, friction paper is located between the elastic rubber pad and the sample to be tested, and a fixing part for fixing the friction paper on the friction head is provided on the friction head.

[0009] By adopting the above technical solution, the tester first fixes the sample to be tested on the friction plate, then fixes the friction paper on the friction head through the fixing parts, and then places the friction head on the friction plate where the sample to be tested has been fixed. At this time, the friction paper is located between the elastic rubber pad and the sample to be tested. Under the action of the friction head's own weight, the elastic rubber pad drives the friction paper to squeeze the friction paper. The elastic rubber pad can deform and provide a compaction effect on the friction paper, so that the friction paper fits tightly to the sample to be tested. Then, the driving part is started through the control panel, and the driving part drives the friction head to perform reciprocating sliding motion on the sample to be tested, thereby simulating the actual wear conditions between the friction paper and the sample to be tested, which is beneficial to improving the accuracy of the wear resistance data of printed products.

[0010] Optionally, both sides of the friction head in the sliding direction are arc surfaces, and both ends of the elastic rubber pad in the sliding direction are provided with guide arc surfaces.

[0011] By adopting the above technical solution, the elastic rubber pad absorbs the impact force transmitted to the friction paper by the reciprocating sliding of the friction head, and the guide arc surface reduces the possibility of damage to the friction paper during the impact of the reciprocating sliding.

[0012] Optionally, the elastic rubber pad has anti-slip grooves on the side facing the friction paper.

[0013] By adopting the above technical solution, the friction between the elastic rubber pad and the friction paper is increased, the possibility of relative movement between the friction paper and the elastic rubber pad when the friction head slides back and forth is reduced, and the possibility of the friction paper being damaged by the impact force generated by the friction head is further reduced.

[0014] Optionally, the fixing member includes fixing plates bolted to both ends of the friction head in the sliding direction, the cross-section of the fixing plate is U-shaped, the end of the friction paper is located between the fixing plate and the friction head, and a waist-shaped groove is provided on the friction head along the direction from the fixing plate to the friction head. A fixing screw is rotatably provided on the fixing plate, and a fixing nut is threadedly connected to the fixing screw, and the fixing nut is used to press the fixing plate onto the friction head.

[0015] By adopting the above technical solution, the U-shaped fixing plate can be made of a metal material with a certain elasticity and hardness, so that the end of the friction paper can be pressed against the friction head by the fixing plate. At the same time, the design of the waist-shaped groove and the fixing screw enables the fixing plate to be adjusted according to the thickness of the friction paper and to achieve stable fixation, which is conducive to improving the applicability and durability of the fixing plate.

[0016] Optionally, an indicator scale is provided on the friction head and along the length direction of the waist-shaped groove.

[0017] By adopting the above technical solution, it is convenient for testers to adjust the fixed pressing position of the fixing plates on both ends of the friction paper so as to accurately adapt to papers of different thicknesses, which is conducive to reducing the adjustment difficulty of testers and improving the convenience of testers' operation.

[0018] Optionally, a flexible cushion layer is provided on the side of the fixing sheet facing the friction paper.

[0019] By adopting the above technical solution, the possibility of the friction paper being indented during the fixing process or being damaged during the sliding process is reduced, which helps to reduce the impact on the surface of the friction paper.

[0020] Optionally, a pressure plate is provided on the friction plate, a clevis bolt is rotatably passed through the pressure plate, and the clevis bolt is threadedly connected to the operating table.

[0021] The adoption of the above technical solution is conducive to improving the convenience for testers to change different test samples.

[0022] Optionally, an anti-loosening layer is provided between the pressure plate and the friction plate.

[0023] By adopting the above technical solution, the anti-loosening layer increases the friction between the pressure plate and the sample to be tested, and reduces the possibility that the friction head will cause the sample to be tested to slip during the reciprocating sliding process.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. The tester first fixes the sample to be tested on the friction plate, then fixes the friction paper on the friction head through the fixing parts, and then places the friction head on the friction plate with the sample to be tested fixed. At this time, the friction paper is located between the elastic rubber pad and the sample to be tested. Under the action of the friction head's own weight, the elastic rubber pad drives the friction paper to squeeze. The elastic rubber pad can deform and provide a compaction effect for the friction paper, making the friction paper fit tightly to the sample to be tested. Then, the driving part is started through the control panel. The driving part drives the friction head to perform reciprocating sliding motion on the sample to be tested, thereby simulating the actual wear between the friction paper and the sample to be tested, which is conducive to improving the accuracy of the wear resistance data of printed products;

[0026] 2. The friction between the elastic rubber pad and the friction paper is increased, which reduces the possibility of relative movement between the friction paper and the elastic rubber pad when the friction head slides back and forth, and further reduces the possibility of the friction paper being damaged by the impact force generated by the friction head;

[0027] 3. The U-shaped fixing plate can be made of a metal material with a certain elasticity and hardness, so that the end of the friction paper can be pressed against the friction head by the fixing plate. At the same time, the design of the waist-shaped groove and the fixing screw enables the fixing plate to be adjusted according to the thickness of the friction paper and to achieve stable fixation, which is conducive to improving the applicability and durability of the fixing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of an embodiment of the present application.

[0029] Figure 2 yes Figure 1 Enlarged view of part A.

[0030] Figure 3 It is a cross-sectional view showing the positional relationship among the fixing sheet, friction paper and elastic rubber pad in the embodiment of the present application.

[0031] Explanation of the accompanying symbols: 0, friction paper; 1, operating table; 2, control panel; 3, friction plate; 4, sample to be tested; 5, friction head; 6, driving part; 61, driving rod; 62, pressure groove; 63, avoidance groove; 7, pressure adjustment assembly; 71, elastic rubber pad; 72, fixing part; 721, fixing plate; 722, waist-shaped groove; 723, fixing screw; 724, fixing nut; 8, guide arc surface; 9, anti-slip groove; 10, indicator scale; 11, flexible cushion layer; 12, pressure plate; 13, clevis bolt; 14, anti-loosening layer. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-Figure 3 This application is described in further detail.

[0033] The embodiments of the present application disclose an improved abrasion resistance testing device.

[0034] Reference Figure 1 An improved wear resistance testing device includes an operating table 1, a control panel 2 is arranged on the operating table 1, a friction plate 3 is welded on the operating table 1, a sample 4 to be tested is placed on the friction plate 3, and the sample 4 to be tested is a printed matter, that is, thick paper or cardboard. A pressing plate 12 is arranged on the friction plate 3, and an anti-loosening layer 14 is bonded to the side of the pressing plate 12 facing the friction plate 3. The anti-loosening layer 14 is pressed tightly on the sample 4 to be tested, and a clevis bolt 13 is rotatably passed through the pressing plate 12, and the clevis bolt 13 is threadedly connected to the operating table 1.

[0035] Reference Figure 1 、 Figure 2 and Figure 3 A friction head 5 is slidably arranged on the operating table 1 and above the friction plate 3. The friction head 5 can be made of a hard alloy material with good wear resistance. The bottom of the friction head 5 is designed to be flat. A driving part 6 for driving the friction head 5 to slide back and forth is arranged on the operating table 1.

[0036] Reference Figure 1 、 Figure 2 and Figure 3 The driving member 6 includes a driving rod 61 slidably arranged on the operating table 1, a pressing groove 62 for clamping the driving rod 61 is vertically opened on the friction head 5, and an avoidance groove 63 for the driving rod 61 to slide is opened on the operating table 1. A cylinder (not shown in the figure) electrically connected to the control panel 2 is bolted inside the operating table 1, and the driving rod 61 is bolted to the piston rod of the cylinder.

[0037] Reference Figure 1 、 Figure 2 and Figure 3 Both sides of the friction head 5 in the sliding direction are arc-shaped and polished. A pressure adjustment component 7 is arranged on the friction head 5. The pressure adjustment component 7 includes an elastic rubber pad 71 bonded to the bottom of the friction head 5. The elastic rubber pad 71 can be made of a silicone material with high elasticity and wear resistance.

[0038] Reference Figure 1 、 Figure 2 and Figure 3 Both ends of the elastic rubber pad 71 in the sliding direction are provided with guide arc surfaces 8. The friction paper 0 is located between the elastic rubber pad 71 and the friction plate 3. The friction paper 0 can be made of the same material or a different material as the sample 4 to be tested. The elastic rubber pad 71 is provided with anti-slip grooves 9 on the side facing the friction paper 0. A fixing part 72 for fixing the friction paper 0 on the friction head 5 is arranged on the friction head 5.

[0039] The tester first unscrews the clevis bolts 13, then places the test sample 4 on the friction plate 3, and then fixes the pressure plate 12 to both ends of the friction plate 3 through the clevis bolts 13. Then, the friction head 5 fixed with the friction paper 0 is put on the drive rod 61 through the pressure groove 62. Finally, the cylinder is started through the control panel 2. The cylinder extends and retracts its piston rod, causing the drive rod 61 to drive the friction head 5 to perform reciprocating sliding motion.

[0040] Reference Figure 1 、 Figure 2 and Figure 3The fixing member 72 includes a fixing piece 721 bolted to both ends of the friction head 5 in the sliding direction. The cross section of the fixing piece 721 is U-shaped. The fixing piece 721 can be made of a metal material with a certain elasticity and hardness. The end of the friction paper 0 is located between the fixing piece 721 and the friction head 5. A flexible pad 11 is bonded to the side of the fixing piece 721 facing the friction paper 0. The flexible pad 11 can be made of sponge or rubber material.

[0041] Reference Figure 1 、 Figure 2 and Figure 3 A waist-shaped groove 722 is provided on the friction head 5 along the direction from the fixed plate 721 to the friction head 5, and an indicating scale 10 is provided on the friction head 5 along the length direction of the waist-shaped groove 722. A fixing screw 723 is rotatably passed through the fixing plate 721, and a fixing nut 724 is threadedly connected to the fixing screw 723. The fixing nut 724 is used to press the fixing plate 721 onto the friction head 5.

[0042] Before installing the friction head 5, the tester sticks the friction paper 0 on the bottom of the elastic rubber pad 71, and presses the two ends of the friction paper 0 against the side walls at both ends of the sliding direction of the friction head 5 through the U-shaped fixing plate 721. Then the tester inserts the fixing screw 723 and adjusts the fastening position of the fixing plate 721 according to the indicator scale 10. Finally, the fixing nut 724 is tightened so that the fixing plate 721 is pressed against the outer wall of the friction head 5.

[0043] After the friction head 5 is mounted on the driving rod 61, the elastic rubber pad 71 presses the friction paper 0 against the test sample 4 under the action of the friction head 5's own gravity, so that the friction paper 0 fits tightly against the test sample 4, thereby simulating the actual wear condition of the test sample 4.

[0044] The implementation principle of an improved wear resistance testing device in an embodiment of the present application is as follows: the tester first unscrews the clevis bolt 13, then places the sample 4 to be tested on the friction plate 3, and then fixes the pressure plate 12 on both ends of the friction plate 3 through the clevis bolt 13, and then puts the friction head 5 fixed with the friction paper 0 on the driving rod 61 through the pressing groove 62, and finally starts the cylinder through the control panel 2. The cylinder extends and retracts its piston rod, so that the driving rod 61 drives the friction head 5 to perform reciprocating sliding motion.

[0045] Before installing the friction head 5, the tester sticks the friction paper 0 on the bottom of the elastic rubber pad 71, and presses the two ends of the friction paper 0 against the side walls at both ends of the sliding direction of the friction head 5 through the U-shaped fixing plate 721. Then the tester inserts the fixing screw 723 and adjusts the fastening position of the fixing plate 721 according to the indicator scale 10. Finally, the fixing nut 724 is tightened so that the fixing plate 721 is pressed against the outer wall of the friction head 5.

[0046] After the friction head 5 is mounted on the driving rod 61, the elastic rubber pad 71 presses the friction paper 0 against the test sample 4 under the action of the friction head 5's own gravity, so that the friction paper 0 fits tightly against the test sample 4, thereby simulating the actual wear condition of the test sample 4.

[0047] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An improved wear resistance testing device, characterized in that: The invention comprises an operating table (1), wherein the operating table (1) is provided with a control panel (2), the operating table (1) is provided with a friction plate (3), the friction plate (3) is provided with a sample to be tested (4), the operating table (1) is provided with a friction head (5) slidably provided above the friction plate (3), the operating table (1) is provided with a driving member (6) for driving the friction head (5) to slide back and forth, the friction head (5) is provided with a pressure adjustment assembly (7), the pressure adjustment assembly (7) comprises an elastic rubber pad (71) provided on the friction head (5), the friction paper (0) is located between the elastic rubber pad (71) and the sample to be tested (4), and the friction head (5) is provided with a fixing member (72) for fixing the friction paper (0) to the friction head (5).

2. The improved wear resistance testing device according to claim 1, characterized in that: Both sides of the friction head (5) in the sliding direction are arc surfaces, and both ends of the elastic rubber pad (71) in the sliding direction are provided with guide arc surfaces (8).

3. The improved wear resistance testing device according to claim 2, characterized in that: The elastic rubber pad (71) is provided with anti-slip grooves (9) on one side facing the friction paper (0).

4. The improved wear resistance testing device according to claim 1, characterized in that: The fixing member (72) includes a fixing plate (721) bolted to both ends of the friction head (5) in the sliding direction, the cross section of the fixing plate (721) is U-shaped, the end of the friction paper (0) is located between the fixing plate (721) and the friction head (5), a waist-shaped groove (722) is provided on the friction head (5) along the direction from the fixing plate (721) to the friction head (5), a fixing screw (723) is rotatably passed through the fixing plate (721), and a fixing nut (724) is threadedly connected to the fixing screw (723), and the fixing nut (724) is used to press the fixing plate (721) onto the friction head (5).

5. The improved wear resistance testing device according to claim 4, characterized in that: An indicating scale (10) is provided on the friction head (5) and along the length direction of the waist-shaped groove (722).

6. The improved wear resistance testing device according to claim 4, characterized in that: A flexible cushion layer (11) is provided on the side of the fixing sheet (721) facing the friction paper (0).

7. The improved wear resistance testing device according to claim 1, characterized in that: A pressure plate (12) is provided on the friction plate (3), a clevis bolt (13) is rotatably passed through the pressure plate (12), and the clevis bolt (13) is threadedly connected to the operating table (1).

8. The improved wear resistance testing device according to claim 7, characterized in that: An anti-loosening layer (14) is provided between the pressure plate (12) and the friction plate (3).

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