Device for testing surface adhesive force of laser paper

Abstract

The utility model discloses a laser paper surface adhesive force testing device which comprises a working table, a pressing roller and an adhesive tape roller are arranged above the working table, the adhesive tape roller is located above the pressing roller, the pressing roller and the adhesive tape roller can synchronously rotate, the rotation directions are consistent, and the pressing roller at least comprises a first extrusion part and a second extrusion part. The distance between the first extrusion part and the upper surface of the workbench is larger than the distance between the second extrusion part and the upper surface of the workbench. According to the laser paper adhesive force testing device, different pressures can be applied to different positions of laser paper during testing by arranging the compression roller with the extrusion parts of different sizes, adhesive force testing under multiple pressures is achieved, adhesive tape uncovering at the same angle and the same force can be achieved by arranging the adhesive tape roller, and the accuracy of a testing result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, and more specifically, to a laser paper surface adhesion testing device. Background Art

[0002] Laser paper is a paper with a metallic colorful effect on the surface. It is often used in the production of anti-counterfeiting packaging boxes. During the production process of laser paper, a layer of laser pattern layer is compounded on the surface of the paper. Therefore, the bonding strength between the laser pattern layer and the paper is one of the important criteria for testing the quality of laser paper.

[0003] At present, when testing the adhesion of laser paper, the surface of the laser paper is adhered to by tape, and then the tape and the surface of the laser paper are combined by a pressure roller with a certain pressure, and finally the tape is peeled off to separate the tape and the bonding strength between the laser pattern layer and the paper is tested by observing whether there is a laser pattern on the surface of the tape. This method has shortcomings: first, the pressure of the pressure roller on the tape and the laser paper is fixed, and it is impossible to test the adhesion of the laser paper surface under different pressures. The test is relatively simple and the accuracy of the result is slightly poor. Second, most of the separation of tape and laser paper is done by manually peeling off the tape. The angle and strength of the tape peeling off cannot be controlled, resulting in errors in the test results. Therefore, it is urgently needed to improve this. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and to provide a device for testing the surface adhesion of laser paper. By arranging pressure rollers with extrusion parts of different sizes, different pressures can be applied to different positions of the laser paper during the test to achieve adhesion testing under multiple pressures. By arranging a tape roller, the tape can be peeled off at the same angle and with the same force, thereby improving the accuracy of the test results.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a laser paper surface adhesion testing device, comprising a workbench, wherein a pressure roller and a tape roller are arranged above the workbench, wherein the tape roller is located above the pressure roller, wherein the pressure roller and the tape roller can rotate synchronously and in the same direction, wherein the pressure roller comprises at least a first extrusion portion and a second extrusion portion, wherein the diameter of the second extrusion portion is greater than the diameter of the first extrusion portion, and the distance from the first extrusion portion to the upper surface of the workbench is greater than the distance from the second extrusion portion to the upper surface of the workbench.

[0007] Furthermore, the pressure roller also includes a third extrusion part and a fourth extrusion part, the diameter of the third extrusion part is larger than that of the second extrusion part, the diameter of the fourth extrusion part is larger than that of the third extrusion part, and the distance from the third extrusion part to the upper surface of the workbench is larger than the distance from the fourth extrusion part to the upper surface of the workbench.

[0008] Furthermore, the first extrusion portion and the second extrusion portion are transitioned through a circular arc, the second extrusion portion and the third extrusion portion are transitioned through a circular arc, and the third extrusion portion and the fourth extrusion portion are transitioned through a circular arc.

[0009] Furthermore, two support plates are fixed on the upper part of the workbench, and both ends of the pressure roller and the tape roller are respectively connected to the two support plates. A driving wheel is fixed to one end of the pressure roller, and a transmission wheel is fixed to one end of the tape roller. The driving wheel and the transmission wheel are connected by a belt.

[0010] Furthermore, one end of the pressure roller is connected to a crank, and rotating the crank can drive the pressure roller to rotate.

[0011] Furthermore, a support rod is fixed on the upper part of the workbench, the support rod is located on both sides of the tape roller, and an adjusting piece is connected to the outer side of the support rod, and the adjusting piece can move up and down along the support rod.

[0012] Furthermore, the tape roller is unwound to form a tape sheet, and the adjusting member includes a sliding sleeve, which is arranged on the outside of the support rod, and a convex plate is arranged on the inside of the sliding sleeve, and the convex plate is located on the back of the tape sheet, and there is a gap between the back of the tape sheet and the convex plate.

[0013] Furthermore, a handle bolt is threadedly connected to the outer side of the sliding sleeve, and the end of the handle bolt can abut against the support rod to fix the adjusting member and the support rod.

[0014] Furthermore, the adjusting member connected to the two support rods is connected via a pressure strip, the pressure strip is located on the front side of the tape piece, and the pressure strip and the adjusting member are detachably arranged.

[0015] Furthermore, a hanging post is provided on the front side of the convex plate, and the hanging post is located on the outside of the tape piece. The hanging post is arranged upwardly and inclined toward the side away from the convex plate. The pressure strip includes a through hole corresponding to the hanging post, and the hanging post can be inserted into the through hole so that the back side of the tape piece abuts the convex plate and the pressure strip abuts the front side of the tape piece.

[0016] The beneficial effects of the utility model are:

[0017] 1. When the pressure roller rotates counterclockwise, the belt can drive the tape roller to rotate synchronously counterclockwise. At this time, the tape roller can unwind to form a tape sheet that is separated from the tape roller. When the laser paper and the ends of the tape sheet are both located below the pressure roller, the counterclockwise rotation of the pressure roller can press the sticky side of the tape sheet on the surface of the laser paper to combine with the laser paper and drive the laser paper and the tape sheet to be transmitted to the right, so as to achieve the adhesion of the laser paper and the tape sheet; when the pressure roller rotates clockwise, the laser paper combined with the tape sheet can be transmitted back to the left, and the tape sheet can be rolled up and peeled off from the surface of the laser paper through the synchronous clockwise rotation of the tape roller, so as to achieve the operation of peeling off the tape. It can be seen that through the coordinated transmission of the pressure roller and the tape roller, the tape sheet can be peeled off at the same angle and force, which is conducive to improving the accuracy of the test results;

[0018] 2. When the laser paper is conveyed on the surface of the workbench, the pressure on the laser paper at different extrusion parts is different because the pressure roller has extrusion parts with different diameters. That is, the pressure on the laser paper at different extrusion parts of the pressure roller is different. This can simulate the performance test of the surface adhesion of the laser paper under multiple different pressures of the laser paper and the tape at one time, greatly improving the test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A structural schematic diagram of this embodiment;

[0020] Figure 2 for Figure 1 A magnified view at point A;

[0021] Figure 3 is a cross-sectional view of this embodiment;

[0022] Figure 4 for Figure 3 Enlarged view at B.

[0023] Figure numerals: 1. workbench; 11. support plate; 12. conveying table; 2. pressure roller; 21. first extrusion part; 22. second extrusion part; 23. third extrusion part; 24. fourth extrusion part; 25. driving wheel; 26. crank handle; 3. tape roller; 31. tape piece; 32. transmission wheel; 4. belt; 5. support rod; 6. adjusting part; 61. sliding sleeve; 62. convex plate; 63. handle bolt; 64. hanging column; 7. pressure strip; 71. through hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 4 As shown, a laser paper surface adhesion test device comprises a workbench 1, a pressure roller 2 and a tape roller 3 are arranged above the workbench 1, the tape roller 3 is located above the pressure roller 2, the pressure roller 2 and the tape roller 3 can rotate synchronously and in the same direction, specifically, two support plates 11 are fixed on the upper part of the workbench 1, the pressure roller 2 and the tape roller 3 are connected to the two support plates 11 at both ends, a driving wheel 25 is fixed at one end of the pressure roller 2, and a transmission wheel 32 is fixed at one end of the tape roller 3, and the driving wheel 25 is connected to the transmission wheel 32 through a belt 4, as shown in FIG. Figure 3 As shown, when the pressure roller 2 rotates counterclockwise, the belt 4 can drive the tape roller 3 to rotate synchronously counterclockwise. At this time, the tape roller 3 can be unwound to form a tape piece 31 that is separated from the tape roller 3. When the ends of the laser paper and the tape piece 31 are both located below the pressure roller 2, the counterclockwise rotation of the pressure roller 2 can press the sticky side of the tape piece 31 on the surface of the laser paper to combine with the laser paper and drive the laser paper and the tape piece 31 to be transported to the right, thereby realizing the adhesion of the laser paper and the tape piece 31; when the pressure roller 2 rotates clockwise, the laser paper combined with the tape piece 31 can be transported back to the left, and the tape roller 3 that rotates synchronously clockwise can reel up the tape piece 31 and peel the tape piece 31 from the surface of the laser paper to realize the operation of peeling off the tape. It can be seen that through the coordinated transmission of the pressure roller 2 and the tape roller 3, the peeling operation of the tape piece 31 at the same angle and with the same force can be realized, which is conducive to improving the accuracy of the test results.

[0026] One end of the pressure roller 2 is connected to a crank 26, which is arranged at an end of the pressure roller 2 away from the driving wheel 25. Turning the crank 26 can drive the pressure roller 2 to rotate. The crank 26 in this embodiment is manually rotated, which is easy to operate and has good reliability.

[0027] Wherein, the pressing roller 2 includes at least two extrusion parts with different diameters, specifically, a first extrusion part 21, a second extrusion part 22, a third extrusion part 23 and a fourth extrusion part 24, the diameter of the second extrusion part 22 is greater than the diameter of the first extrusion part 21, the distance from the first extrusion part 21 to the upper surface of the workbench 1 is greater than the distance from the second extrusion part 22 to the upper surface of the workbench 1, the diameter of the third extrusion part 23 is greater than the second extrusion part 22, the diameter of the fourth extrusion part 24 is greater than the third extrusion part 23, the distance from the third extrusion part 23 to the upper surface of the workbench 1 is greater than the distance from the fourth extrusion part 24 to the upper surface of the workbench 1, when the laser paper is conveyed on the surface of the workbench 1, since the pressing roller 2 has extrusion parts with different diameters, the pressure on the laser paper at different extrusion parts is different, that is, the pressure of the pressing roller 2 on the laser paper at different extrusion parts is different, so that the performance test of the surface adhesion of the laser paper can be simulated at one time between the laser paper and the tape sheet 31 under multiple different pressures, which greatly improves the test effect.

[0028] The first extrusion portion 21 and the second extrusion portion 22 are transitioned by an arc, the second extrusion portion 22 and the third extrusion portion 23 are transitioned by an arc, and the third extrusion portion 23 and the fourth extrusion portion 24 are transitioned by an arc. The arc transition effectively reduces the shear force of the bonding surface of the two adjacent extrusion portions on the laser paper and the tape piece 31, thereby preventing damage to the tape piece 31 and the laser paper.

[0029] A conveying platform 12 is installed on the upper part of the workbench 1 and is located below the pressing roller 2 . The conveying platform 12 is equivalent to a reference platform, which is beneficial to the consistency of the gap between the pressing roller 2 and the conveying platform 12 when the surface is located at the same extrusion part.

[0030] A support rod 5 is fixed on the upper part of the workbench 1, and the support rod 5 is located on both sides of the tape roller 3. An adjusting member 6 is connected to the outer side of the support rod 5, and the adjusting member 6 can move up and down along the support rod 5. Specifically, the adjusting member 6 includes a sliding sleeve 61, and the sliding sleeve 61 is sleeved on the outer side of the support rod 5. A handle bolt 63 is threadedly connected to the outer side of the sliding sleeve 61, and the end of the handle bolt 63 can abut the support rod 5 to fix the adjusting member 6 and the support rod 5;

[0031] A convex plate 62 is provided on the inner side of the sliding sleeve 61, and the convex plate 62 is located on the back side of the tape piece 31. There is a gap between the back side of the tape piece 31 and the convex plate 62. The adjusting member 6 connected to the two support rods 5 is connected through a pressure strip 7, and the pressure strip 7 is located on the front side of the tape piece 31. The pressure strip 7 and the adjusting member 6 are detachably arranged.

[0032] After the adhesion test of the laser paper surface is completed, the adhesiveness of the tape piece 31 will decrease after it is combined with the laser paper surface and then peeled off, so the section combined with the laser paper needs to be cut. Since the tape piece 31 is made of flexible material, when cutting is required, the tape piece 31 can be clamped by the pressure strip 7 and the convex plate 62, thereby facilitating the cutting operation of the tape piece 31 and making the operation more convenient.

[0033] The front side of the convex plate 62 is provided with a hanging column 64, and the hanging column 64 is located on the outside of the tape piece 31. The hanging column 64 is inclined upward toward the side away from the convex plate 62. The pressure strip 7 includes a through hole 71 corresponding to the hanging column 64. The hanging column 64 can be inserted into the through hole 71 so that the back side of the tape piece 31 abuts against the convex plate 62 and the pressure strip 7 abuts against the front side of the tape piece 31. By setting the inclined hanging column 64, when the pressure strip 7 is connected to the hanging column 64, the pressure strip 7 can slide down due to the gravity of the pressure strip 7 itself, so that the tape piece 31 can be automatically clamped. The structure is simple and reliable.

[0034] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A laser paper surface adhesion testing device, characterized in that: The invention comprises a workbench (1), wherein a pressure roller (2) and a tape roller (3) are arranged above the workbench (1), wherein the tape roller (3) is located above the pressure roller (2), wherein the pressure roller (2) and the tape roller (3) can rotate synchronously and in the same direction, wherein the pressure roller (2) comprises at least a first extrusion portion (21) and a second extrusion portion (22), wherein the diameter of the second extrusion portion (22) is greater than the diameter of the first extrusion portion (21), and the distance from the first extrusion portion (21) to the upper surface of the workbench (1) is greater than the distance from the second extrusion portion (22) to the upper surface of the workbench (1).

2. A laser paper surface adhesion testing device according to claim 1, characterized in that: The pressing roller (2) further comprises a third extrusion portion (23) and a fourth extrusion portion (24); the diameter of the third extrusion portion (23) is larger than that of the second extrusion portion (22); the diameter of the fourth extrusion portion (24) is larger than that of the third extrusion portion (23); and the distance from the third extrusion portion (23) to the upper surface of the workbench (1) is larger than the distance from the fourth extrusion portion (24) to the upper surface of the workbench (1).

3. A laser paper surface adhesion testing device according to claim 2, characterized in that: The first extrusion portion (21) and the second extrusion portion (22) are transitioned through a circular arc, the second extrusion portion (22) and the third extrusion portion (23) are transitioned through a circular arc, and the third extrusion portion (23) and the fourth extrusion portion (24) are transitioned through a circular arc.

4. The laser paper surface adhesion testing device according to claim 1, characterized in that: Two support plates (11) are fixed on the upper part of the workbench (1); the two ends of the pressure roller (2) and the tape roller (3) are respectively connected to the two support plates (11); a driving wheel (25) is fixed to one end of the pressure roller (2); a transmission wheel (32) is fixed to one end of the tape roller (3); and the driving wheel (25) and the transmission wheel (32) are connected via a belt (4).

5. The laser paper surface adhesion testing device according to claim 1, characterized in that: One end of the pressure roller (2) is connected to a crank (26), and turning the crank (26) can drive the pressure roller (2) to rotate.

6. The laser paper surface adhesion testing device according to claim 1, characterized in that: A support rod (5) is fixed on the upper part of the workbench (1), and the support rod (5) is located on both sides of the tape roller (3). An adjusting member (6) is connected to the outer side of the support rod (5), and the adjusting member (6) can move up and down along the support rod (5).

7. A laser paper surface adhesion testing device according to claim 6, characterized in that: The tape roller (3) is unwound to form a tape sheet (31); the adjusting member (6) comprises a sliding sleeve (61); the sliding sleeve (61) is sleeved on the outside of the support rod (5); a convex plate (62) is provided on the inside of the sliding sleeve (61); the convex plate (62) is located on the back of the tape sheet (31); and a gap exists between the back of the tape sheet (31) and the convex plate (62).

8. A laser paper surface adhesion testing device according to claim 7, characterized in that: The outer side of the sliding sleeve (61) is threadedly connected with a handle bolt (63), and the end of the handle bolt (63) can abut against the support rod (5) to fix the adjustment member (6) and the support rod (5).

9. A laser paper surface adhesion testing device according to claim 7, characterized in that: The adjusting member (6) connected to the two support rods (5) is connected via a pressure strip (7), the pressure strip (7) is located on the front side of the adhesive tape sheet (31), and the pressure strip (7) and the adjusting member (6) are detachably arranged.

10. A laser paper surface adhesion testing device according to claim 9, characterized in that: The front side of the convex plate (62) is provided with a hanging column (64), the hanging column (64) is located outside the tape piece (31), the hanging column (64) is arranged obliquely upward toward the side away from the convex plate (62), the pressure strip (7) includes a through hole (71) corresponding to the hanging column (64), and the hanging column (64) can be inserted into the through hole (71) so that the back side of the tape piece (31) abuts against the convex plate (62) and the pressure strip (7) abuts against the front side of the tape piece (31).

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