A writing line drying time measuring device and a measuring method thereof

Abstract

A writing line drying time measuring device and method thereof, used for quantitatively measuring the writing line drying time of a writing tool on a writing paper, comprising: a sliding mechanism (1), used for maintaining the writing tool in a fixed state or performing smooth movement; an angle adjustment mechanism (2); a sleeve mechanism (3), used for clamping the writing tool of different models and specifications; a platform mechanism (4), used for placing the writing paper, controlling the writing paper to automatically roll up, controlling the paper feeding speed and ensuring the flatness of the paper; a weight mechanism (5), used for setting the covering paper and the load weight, controlling the covering paper to automatically roll up, controlling the paper feeding speed and ensuring the flatness of the paper; and a video detection system (6), used for shooting the writing paper after writing is completed or the covering paper after covering is completed, and inputting the video data into a computer installed with video detection software.

Description

Technical Field

[0001] The invention relates to a stationery detection device, in particular to a writing line trace measuring device. Background Art

[0002] After writing with a writing tool, the drying time of the thread has always been a clear requirement in the relevant standards of writing tools, and it also greatly affects the user experience in actual applications. The measurement method for drying time in the industry standard is relatively simple and close to qualitative measurement, that is, a relatively broad standard is given to meet the minimum requirements as the standard for qualified drying. In recent years, with the gradual promotion and application of the "quick-drying" series of writing tools, users' requirements for the drying time of the thread of writing tools have gradually increased. Only referring to the standard for drying time testing can no longer meet the needs of users.

[0003] The drying time of writing traces is greatly affected by the writing paper, covering paper, load weight, friction method, etc. In addition, since the drying time of the traces of the "quick-drying" series of writing tools is often very short, the detection operation space is only a few seconds. The manual detection method not only has great differences, but also has extremely high requirements for the detection personnel. The detection accuracy and detection reproducibility cannot be guaranteed. The test of the drying time of the traces of such writing tools has not been accurate and quantitative.

[0004] Therefore, there is an urgent need to develop a writing line drying time measuring device to perform automated and standardized quantitative measurement of the writing line drying time of writing tools, improve the accuracy and efficiency of detection, and fix the corresponding detection method. Summary of the invention

[0005] The purpose of the present invention is to provide a new writing line drying time measuring device, which can quickly and accurately quantify the line drying time after writing is completed and perform automatic detection.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A writing line drying time measuring device is used to quantitatively measure the writing line drying time of a writing tool on a writing paper, comprising: a sliding mechanism for maintaining the writing tool in a fixed state or performing smooth movement; an angle adjustment mechanism for adjusting the writing angle between the writing tool and the writing paper surface; a sleeve mechanism for clamping the writing tools of different models and specifications; a platform mechanism for placing the writing paper, and automatically rolling the paper, controlling the paper feeding speed and ensuring the flatness of the paper through a writing paper control device; a weight mechanism for setting covering paper and load weights, and automatically rolling the paper, controlling the paper feeding speed and ensuring the flatness of the paper through a covering paper control device; a video detection system for shooting the writing paper after writing is completed or the covering paper after covering is completed, and inputting the video data into a computer installed with video detection software, and the computer automatically detects and determines the video data.

[0008] Furthermore, the sliding mechanism includes a fixed block, a sliding block, a locking screw, a sliding screw, and a sliding groove. The sliding block is maintained in a fixed state by tightening the sliding screw, or maintained in a sliding state by loosening the sliding screw; the sliding groove is arranged inside the fixed block, and the sliding groove limits the sliding block to repeatedly translate within a certain range; the locking screw is used to connect the sliding mechanism and the angle adjustment mechanism.

[0009] Furthermore, the angle adjustment device includes a protractor, an angle screw, an angle clamping block, a height screw, and a height clamping block; the two ends of the angle clamping block are respectively connected to the sliding block and the height clamping block, and the internal drilled holes are used to pass the angle screw; the angle screw can adjust the tightness and rotate within a certain range, the angle screw is locked to maintain the selected angle and support the height clamping block by the locking force; the protractor is arranged on the side of the angle clamping block to assist the angle adjustment device in determining the angle; the height clamping block is used to fix the sleeve mechanism, and the height clamping block fine-tunes its own height through the height screw.

[0010] Furthermore, the sleeve mechanism includes a sleeve bracket and a sleeve, the sleeve bracket is fixed to one end of the height clamping block; the outer diameter of the sleeve is smaller than the inner diameter of the sleeve bracket, and the sleeve is arranged in the sleeve bracket to slide freely; a fastening screw is provided inside the sleeve for fixing the writing tool.

[0011] Furthermore, the platform mechanism includes a main transmission system, a writing paper feeding device, a writing paper receiving device, a writing paper pressure wheel, a writing paper pressure wheel shaft, and writing paper; the main transmission system includes a linkage main shaft, a coupling, a main platform, and a servo motor for providing transmission force; the writing paper feeding device includes a writing paper feeding roll and a writing paper feeding reel; the writing paper receiving device includes a writing paper receiving roll, a writing paper receiving reel, and a writing paper reel motor; the writing paper is laid flat on the main platform, one end of the writing paper is connected to the writing paper feeding roll, and the other end of the writing paper is connected to the writing paper receiving reel through the writing paper reel motor; the writing paper is automatically fed, fed, and received through the action of the writing paper reel motor, and the writing paper pressure wheel and the writing paper pressure wheel shaft are used to keep the paper flat.

[0012] Furthermore, the weight mechanism includes a covering paper linkage device, a load-bearing device, and a covering paper receiving motor. The load-bearing device includes a load weight and a weight clamp. The load weight is used to press on the covering paper so that the covering paper fits the writing paper. The weight clamp is used to fix the load weight and control the rise and fall of the load weight. The covering paper linkage device includes a covering paper feed roll, a covering paper feed reel, covering paper, a covering paper pressure wheel, a covering paper receiving roll, and a covering paper receiving reel. One end of the covering paper is connected to the covering paper feed roll, and the other end of the covering paper is connected to the covering paper receiving reel through the covering paper roll motor. The covering paper completes automatic paper feeding, paper feeding, and paper receiving through the action of the covering paper receiving motor, and the paper is kept flat through the covering paper pressure wheel.

[0013] Furthermore, the video detection system includes a cover paper camera, a writing paper camera, and a computer. The lens direction of the cover paper camera is perpendicular to the cover paper, and is used to capture and photograph the ink stains on the cover paper; the lens direction of the writing paper camera is perpendicular to the writing paper, and is used to capture and photograph the writing lines on the writing paper; the computer includes detection software for receiving and analyzing photographic data and controlling the writing line drying time measuring device.

[0014] Furthermore, a manual operating system is provided on the platform mechanism, including switches and a display window, which are used for debugging and manual control of the equipment. The switches include a start switch, an emergency stop switch, a manual feeding switch for writing paper, a manual photo switch, a manual timing switch, and a manual feeding switch for covering paper. The display window includes a timing display window.

[0015] A method for measuring the drying time of written lines, wherein the method for measuring the drying time of written lines uses any one of the above-mentioned devices for measuring the drying time of written lines.

[0016] Further, the steps include:

[0017] a) adjusting the angle adjustment device (2) to set the writing angle of the writing tool;

[0018] b) adjusting the platform mechanism (4), replacing the writing paper (412) with a suitable one in coordination with the writing tool, and ensuring the flatness of the writing paper (412);

[0019] c) adjusting the cover paper linkage device, replacing the cover paper (53) with the same one as the writing paper (412), and ensuring the flatness of the cover paper (53);

[0020] d) adjusting the plurality of weight mechanisms (5) and selecting an appropriate load weight (54) to ensure that the load weight (54) can be freely lifted or lowered to press on the cover paper (53);

[0021] e) Open the detection software and perform measurement settings;

[0022] f) adjusting the sleeve (32) to set the load of the writing tool; placing the writing tool into the sleeve (32) and tightening it, fixing the sleeve (32) in the sleeve bracket (31) so that the tip of the writing tool is in contact with the writing paper (412);

[0023] g) starting the detection software, wherein the detection software automatically controls paper feeding, timing, positioning, paper pressing, and shooting according to the measurement settings;

[0024] h) The computer compares and determines the captured covered traces or written traces, and calculates whether the traces are dry within a fixed drying time based on the time calculated by reverse calculation based on the paper feed speed, thereby completing the qualitative characterization; and calculates the actual drying time of the traces based on the drying conditions at multiple groups of different paper feed speeds, thereby completing the quantitative characterization.

[0025] The beneficial effects of the writing line drying time measuring device provided by the present invention compared with the prior art are:

[0026] 1. Developed a writing line drying time measuring device, using machine testing instead of manual testing, improving detection accuracy and reproducibility;

[0027] 2. The writing line drying time measurement equipment can be quantitatively characterized, which is more conducive to result analysis and data statistics compared with the qualitative characterization of existing standards;

[0028] 3. The sliding mode, writing angle and clamping method can be adjusted, which is suitable for different writing methods of different writing tools and has high application adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above technical content of the present invention and the following specific embodiments will be better understood when read in conjunction with the accompanying drawings. It should be noted that the accompanying drawings are only examples of the technical solutions claimed for protection. In the accompanying drawings, the same reference numerals represent the same or similar elements.

[0030] Figure 1 It is a schematic diagram of the structure of a writing line drying time measuring device according to an embodiment of the present invention;

[0031] Figure 2 It is a structural schematic diagram of a platform mechanism according to an embodiment of the present invention;

[0032] Figure 3 is a top view of an operating table according to an embodiment of the present invention;

[0033] Figure 4 It is a structural schematic diagram of a sliding mechanism and an angle adjustment device according to an embodiment of the present invention;

[0034] Figure 5 It is a structural schematic diagram of a weight system according to an embodiment of the present invention;

[0035] Figure 6 It is a partial structural schematic diagram of a sleeve for a pen core according to an embodiment of the present invention;

[0036] Figure 7 It is a partial structural schematic diagram of a ballpoint pen sleeve according to an embodiment of the present invention;

[0037] Figure 8 It is a partial structural schematic diagram of a sleeve for a marker pen according to one embodiment of the present invention.

[0038] The reference numerals are described as follows:

[0039] 1. Sliding mechanism

[0040] 11. Fixed block

[0041] 12. Sliders

[0042] 13. Locking screw

[0043] 14. Sliding screw

[0044] 15. Sliding slot

[0045] 2. Angle adjustment mechanism

[0046] 21. Protractor

[0047] 22. Angle screw

[0048] 23. Angle clamping block

[0049] 24. Height screw

[0050] 25. Height clamping block

[0051] 3. Sleeve mechanism

[0052] 31. Sleeve bracket

[0053] 311. Pen refill holder

[0054] 312. Ballpoint pen holder

[0055] 313. Marker pen holder

[0056] 32. Sleeve

[0057] 321. Pen refill sleeve

[0058] 322. Ballpoint pen sleeve

[0059] 323. Sleeve for marker pen

[0060] 4. Platform organization

[0061] 41. Linked spindle

[0062] 42. Coupling

[0063] 43. Main Platform

[0064] 44. Servo motor

[0065] 45. Writing paper feed roll

[0066] 46. ​​Writing paper feed reel

[0067] 47. Writing paper collection roll

[0068] 48. Writing paper collection reel

[0069] 49. Writing paper roll motor

[0070] 410, Writing paper pressing wheel

[0071] 411, Writing paper pressure roller shaft

[0072] 412. Writing paper

[0073] 5. Weight mechanism

[0074] 51. Cover paper feed roll

[0075] 52. Cover paper feed reel

[0076] 53. Cover paper

[0077] 54. Load weight

[0078] 55. Weight fixture

[0079] 56. Covering paper pressure wheel

[0080] 57. Covering paper collection roll

[0081] 58. Covering paper take-up reel

[0082] 59. Covering paper collection motor

[0083] 6. Video detection system

[0084] 61. Covering Paper Camera

[0085] 62. Writing Paper Camera

[0086] 63. Computer

[0087] 7. Manual operating system

[0088] 71. Start switch

[0089] 72. Emergency stop switch

[0090] 73. Manual paper feed switch for writing paper

[0091] 74. Manual photo switch

[0092] 75. Manual timer switch

[0093] 76. Manual paper feed switch for cover paper

[0094] 77. Timing display window DETAILED DESCRIPTION

[0095] The detailed features and advantages of the present invention are described below in the specific implementation mode, and the content is sufficient to enable those skilled in the art to understand the technical content of the present invention and implement it accordingly. According to this specification, claims and drawings, those skilled in the art can easily understand the relevant objects and advantages of the present invention.

[0096] like Figure 1 As shown, the writing line drying time measuring device includes: a sliding mechanism 1, an angle adjustment mechanism 2, a sleeve mechanism 3, a platform mechanism 4, a weight system 5, a video detection system 6, and a manual operating system 7. Among them:

[0097] The sliding mechanism 1 is firmly fixed on the platform mechanism 4 and connected to the angle adjustment mechanism 2 by screws; the writing tool is fixed in the sleeve mechanism 3, and with the relative movement of the sliding mechanism 1 and the platform mechanism 4, the thread traces are retained on the writing paper of the platform mechanism 4, and after a set time, the thread traces are covered by the weight system 5, and the residual thread traces are photographed, compared and judged by the video detection system 6. The manual operating system 7 is used to assist debugging and manual testing.

[0098] like Figure 2 As shown, the platform mechanism 4 includes: a linkage main shaft 41, a coupling 42, a main platform 43, a servo motor 44, a writing paper feed roll 45, a writing paper feed reel 46, a writing paper collection roll 47, a writing paper collection reel 48, a writing paper roll motor 49, a writing paper pressure wheel 410, a writing paper pressure wheel shaft 411, and writing paper 412. Among them:

[0099] The linkage main shaft 41, the coupling 42, the main platform 43, and the servo motor 44 constitute the main transmission system of the measuring device, providing the transmission force of each module; the writing paper 412 is laid flat on the main platform 43, and the writing paper 412 is wound on the writing paper feeding ticket shaft 46 in the form of a roll to form a writing paper feeding roll 45, which is laid flat on the main platform 43 through the writing paper pressing wheel 410. After the stitches are covered, the writing paper 412 is gradually wound on the writing paper receiving roll 48 under the traction of the writing paper rolling motor 49 to form a writing paper receiving roll, thereby completing the process of automatic paper feeding, paper feeding, and paper receiving.

[0100] like Figure 3 As shown, from the top view of the operating table, it can be seen that the manual operating system 7 includes a start switch 71, an emergency stop switch 72, a manual paper feed switch 73 for writing paper, a manual photo switch 74, a manual timing switch 75, a manual paper feed switch 76 for covering paper, and a timing display window 77; the video detection system 6 includes a covering paper camera 61, a writing paper camera 62, a computer and detection software 63. Among them:

[0101] The start switch 71 is a snap-type switch used to start the equipment; the emergency stop switch 72 is a knob-type switch, which is turned to pop up and start and stop the equipment; the writing paper manual feed switch 73 and the cover paper manual feed switch 76 are continuous switches used to control the manual feed of the corresponding paper; the manual photo switch 74 is a single-press switch used to control the cover paper camera 61 or the writing paper camera 62 to take photos and input them into the computer and detection software 63; the manual timing switch 75 is a snap-type switch used for manual timing and stopping, and the timing can be displayed in the timing display window 77 or the computer and detection software 63.

[0102] The cover paper camera 61 is horizontally facing the cover paper, and is used to capture and photograph the ink stains on the cover paper; the writing paper camera 62 is vertically facing the writing paper, and is used to capture and photograph the writing lines on the writing paper;

[0103] like Figure 4 As shown, the sliding mechanism 1 includes a fixed block 11, a sliding block 12, a locking screw 13, a sliding screw 14, and a sliding slot 15. The angle adjustment device 2 includes a protractor 21, an angle screw 22, an angle clamping block 23, a height screw 24, and a height clamping block 25. Among them:

[0104] The fixed block 11 is firmly fixed on the operating table, and a sliding groove 15 is provided inside the fixed block 11. The sliding block 12 is repeatedly translated within a certain range by the action of the motor; the sliding block 12 can be kept in a fixed state by tightening the sliding screw 14, or kept in a sliding state by loosening the sliding screw 14; the locking screw 13 is used to connect the sliding mechanism 1 and the angle adjustment mechanism 2. The two sections of the angle clamping block 23 are respectively connected to the sliding block 12 of the sliding mechanism 1 and the height clamping block 25 of the angle adjustment device 2, and the internal drilling hole is used to pass the angle screw 22; the angle screw 22 can be loosened and rotated within a certain range, and the angle is determined by the protractor 21. The angle screw 22 is locked to maintain the selected angle, and the height clamping block 25 is supported by the locking force; the height clamping block 25 is used to fix the measuring cylinder mechanism 3, and the height is adjusted in a small range by the height screw 24.

[0105] like Figure 5 , Figure 6 , Figure 7 As shown, the sleeve mechanism 3 includes a sleeve support 31 and a sleeve 32. Among them:

[0106] The sleeve bracket 31 is fixed to the height clamping block 25 by screws. The outer diameter of the sleeve 32 is slightly smaller than the inner diameter of the sleeve bracket 31, and the sleeve 32 can slide freely in the sleeve bracket 31. A fastening screw is arranged inside the sleeve 32 to fix the writing pen. The sleeve bracket 31 and the sleeve 32 are divided into three groups of sleeves, which are suitable for different writing tools. The pen core bracket 311 and the pen core sleeve 321 are used for various ballpoint pen cores; the ballpoint pen bracket 312 and the ballpoint pen sleeve 322 are used for various ballpoint pens with smaller outer diameters; the marker pen bracket 312 and the marker pen sleeve 322 are used for various marker pens with larger outer diameters.

[0107] like Figure 8 As shown, the weight mechanism 5 includes a cover paper feed roll 51, a cover paper feed reel 52, a cover paper 53, a load weight 54, a weight fixture 55, a cover paper pressure wheel 56, a cover paper delivery roll 57, and a cover paper delivery reel 58. Among them:

[0108] The load weight 54 and the weight fixture 55 constitute a load-bearing device. The load weight 54 can be pressed on the covering paper 53 to perform the required test, and the weight fixture 55 can be used to control the rise and fall of the load weight 54 and stabilize the load weight 54. The covering paper 53 is wound on the covering paper feeding ticket shaft 52 in the form of a roll of paper to form a covering paper feeding roll 51, which is kept tight and flat by the covering paper pressure wheel 56. After the stitch covering is completed, the covering paper 53 is gradually wound on the covering paper receiving roll 58 under the traction of the covering paper receiving motor 59 to form a covering paper receiving roll 57, thereby completing the process of automatic paper feeding, paper feeding, and paper receiving.

[0109] The method for testing using the writing line drying time measuring device provided by the present invention may include the following steps:

[0110] a) Adjust the angle adjustment device to set the writing angle of the sample pen;

[0111] b) Adjust the paper feeding / collecting device for writing paper, replace with appropriate writing paper and ensure the flatness of the paper;

[0112] c) Adjust the cover paper feeding / collecting device, replace the cover paper with the same one as the writing paper, and ensure the flatness of the paper;

[0113] d) Adjust the weight mechanism, select the appropriate load weight, and ensure that the load weight can be lifted or dropped freely to press on the covering paper;

[0114] e) Open the detection software and make measurement settings, including measurement mode (manual measurement / automatic measurement), trace mode (straight line mode: in this mode, the slider is fixed and the trace is straight; Z-shaped mode: in this mode, the slider moves back and forth along the sliding groove in a straight line, and the trace is Z-shaped), camera mode (covering traces / writing traces), paper feeding speed (since the paper feeding distance is fixed, the drying time during automatic testing is adjusted according to this speed), weight control mode (timing automatic rise and fall / manual placement), paper drag mode (the displacement method of the writing paper after the weight is placed);

[0115] f) Adjust the sleeve to set the load of the sample pen; put the sample pen into the sleeve and tighten it, fix the sleeve in the sleeve bracket, and make the tip of the sample pen contact with the writing paper on the surface of the main platform;

[0116] g) Start the "automatic test" of the test software, and the software will automatically control paper feeding, timing, positioning, paper pressing, and shooting according to the set test conditions;

[0117] h) Compare and judge based on the captured covered or written traces. Based on the time calculated from the paper feed speed, it is possible to calculate whether the traces are dry within a fixed drying time, thus completing the qualitative characterization; based on the drying conditions under multiple groups of different paper feed speeds, the actual drying time of the traces can be calculated, thus completing the quantitative characterization.

[0118] The traces drawn by the sample pen on the writing paper must be checked and must meet the requirements of normal writing, that is, the traces cannot be broken and the concentration cannot change significantly. Only then can the test data be accepted. Otherwise, it is necessary to re-test or even replace the sample pen, because what the test needs to obtain is the drying time data of the writing tool under normal writing conditions.

[0119] Taking into account that a single test may be affected by accidental factors, this method requires multiple repeated tests, usually 3-5 times, with the average value used as the final test data.

[0120] Test Example 1

[0121] The sample uses a neutral ballpoint pen core as the test pen (the pen tip is a neutral needle tube 0.5mm pen tip, and the ink is neutral pigment black ink). The test conditions are set as follows:

[0122] Writing angle: 70°

[0123] Writing paper, covering paper: Writing paper that complies with the quantitative specification of GB / T12654-2008 and is 70g / m2

[0124] Load weight specifications: 500g special weight, bottom diameter 50mm;

[0125] Writing load: 60g

[0126] Measuring mode: Manual measurement

[0127] Stitch mode: Straight line mode

[0128] Photo mode: Covering the trace

[0129] Paper feeding speed: 75mm / s

[0130] Weight control mode: manual placement (manual control waits for 20 seconds to place, and lifts after covering for 1 minute)

[0131] Paper drag: No

[0132] The test results are shown in Table 1.

[0133] Table 1. Dryness test results of neutral needle black pen core (national standard, manual group)

[0134] Number of tests Drying time(s) Seam coverage Judgment result 1 20 No residual seams dry 2 20 No residual seams dry 3 20 No residual seams dry 4 20 No residual seams dry 5 20 No residual seams dry

[0135] It can be seen from the table that under the set conditions, manual testing was adopted and there were no residual traces on the covering paper after 5 tests. It was determined that the traces were completely dry after 20 seconds.

[0136] This set of tests refers to the test conditions and methods in "7.4 Drying Test" in the national standard for gel ballpoint pens GB / T 37853-2019 Gel Ink Ballpoint Pens and Refills.

[0137] Test Example 2

[0138] The sample uses a neutral ballpoint pen core as the test pen (the pen tip is a neutral needle tube 0.5mm pen tip, and the ink is neutral pigment black ink). The test conditions are set as follows:

[0139] Writing angle: 70°

[0140] Writing paper, covering paper: Writing paper that complies with the quantitative specification of GB / T12654-2008 and is 70g / m2

[0141] Load weight specifications: 500g special weight, bottom diameter 50mm;

[0142] Writing load: 60g

[0143] Measuring mode: automatic measurement

[0144] Stitch mode: Straight line mode

[0145] Photo mode: Covering the trace

[0146] Paper feeding speed: 75mm / s

[0147] Weight control mode: automatic placement (wait 20 seconds to place, cover for 1 minute to lift)

[0148] Paper drag: No

[0149] The test results are shown in Table 2.

[0150] Table 2. Dryness test results of neutral needle black pen core (national standard, automatic group)

[0151] Number of tests Drying time(s) Seam coverage Judgment result 1 20 No residual seams dry 2 20 No residual seams dry 3 20 No residual seams dry 4 20 No residual seams dry 5 20 No residual seams dry

[0152] It can be seen from the table that under the set conditions, automatic testing was adopted and there were no residual traces on the covering paper in the 5 tests. It was determined that the traces were completely dry after 20 seconds.

[0153] This group of tests refers to the test conditions and methods in "7.4 Drying Test" in the national standard for gel ballpoint pens GB / T 37853-2019 Gel Ink Ballpoint Pens and Refills. The test mode is fully automatic, and the test results are consistent with test example 1 (manual test), proving that this equipment can perform drying tests in accordance with national standards.

[0154] Test Example 3

[0155] The sample uses a neutral ballpoint pen core as the test pen (the pen tip is a neutral needle tube 0.5mm pen tip, and the ink is neutral pigment black ink). The test conditions are set as follows:

[0156] Writing angle: 70°

[0157] Writing paper, covering paper: Writing paper that complies with the quantitative specification of GB / T12654-2008 and is 70g / m2

[0158] Load weight specifications: 500g special weight, bottom diameter 50mm;

[0159] Writing load: 60g

[0160] Measuring mode: automatic measurement

[0161] Stitch mode: Straight line mode

[0162] Photo mode: Covering the trace

[0163] Paper feeding speed: 75mm / s

[0164] Weight control mode: automatic placement (wait 4 seconds / 8 seconds / 12 seconds / 16 seconds to place, cover for 20 seconds to lift)

[0165] Paper drag: No

[0166] The test results are shown in Table 3.

[0167] Table 3. Test results of neutral needle black pen core drying (4-16 seconds)

[0168] Number of tests Drying time(s) Seam coverage Judgment result 1 4 There are residual traces Not dried 2 4 There are residual traces Not dried 3 4 There are residual traces Not dried 4 4 There are residual traces Not dried 5 8 There are residual traces Not dried 6 8 There are residual traces Not dried 7 8 There are residual traces Not dried 8 8 There are residual traces Not dried 9 12 No residual seams dry 10 12 No residual seams dry 11 12 No residual seams dry 12 12 No residual seams dry 13 16 No residual seams dry 14 16 No residual seams dry 15 16 No residual seams dry 16 16 No residual seams dry

[0169] As can be seen from the table, under the set conditions, automatic testing was carried out, divided into 4 groups of drying time, 4, 8, 12, and 16 seconds, and 4 tests were conducted in each group. At the 4th and 8th seconds, there were residual traces on the cover paper, which was judged to be not completely dry; while at the 12th and 16th seconds, there were no residual traces on the cover paper, which was judged to be completely dry. Therefore, the drying time of the traces of this writing tool is between 9 and 12 seconds, and additional tests are needed to obtain a more detailed drying time range.

[0170] Compared with the national standard, the drying time range that can be actually measured by this group of tests is more accurate.

[0171] Test Example 4

[0172] The sample uses a neutral ballpoint pen core as the test pen (the pen tip is a neutral needle tube 0.5mm pen tip, and the ink is neutral pigment black ink). The test conditions are set as follows:

[0173] Writing angle: 70°

[0174] Writing paper, covering paper: Writing paper that complies with the quantitative specification of GB / T12654-2008 and is 70g / m2

[0175] Load weight specifications: 500g special weight, bottom diameter 50mm;

[0176] Writing load: 60g

[0177] Measuring mode: automatic measurement

[0178] Stitch mode: Straight line mode

[0179] Photo mode: Covering the trace

[0180] Paper feeding speed: 75mm / s

[0181] Weight control mode: automatic placement (wait for 8 seconds / 9 seconds / 10 seconds / 11 seconds / 12 seconds to place, cover for 20 seconds to lift)

[0182] Paper drag: No

[0183] The test results are shown in Table 4.

[0184] Table 4. Test results of neutral needle black pen core drying (8-12 seconds)

[0185]

[0186]

[0187] As can be seen from the table, under the set conditions, automatic testing was carried out, divided into 5 groups of drying times of 8, 9, 10, 11, and 12 seconds, and each group was tested 4 times. At the 8th and 9th seconds, there were residual traces on the cover paper, which was judged to be not completely dry; at the 12th second, there were no residual traces on the cover paper, which was judged to be completely dry, and at the 10th and 11th seconds, there were different test times, and the traces were sometimes dry and sometimes not dry. Therefore, the drying time of the traces of this writing tool is between 10-12 seconds.

[0188] The drying time range actually measured in this group of experiments can be used as quantitative characterization data.

[0189] Test Example 5

[0190] The sample uses a neutral ballpoint pen core as the test pen (the pen tip is a neutral needle tube 0.5mm pen tip, and the ink is a neutral quick-drying pigment black ink). The test conditions are set as follows:

[0191] Writing angle: 70°

[0192] Writing paper, covering paper: Writing paper that complies with the quantitative specification of GB / T12654-2008 and is 70g / m2

[0193] Load weight specifications: 500g special weight, bottom diameter 50mm;

[0194] Writing load: 60g

[0195] Measuring mode: automatic measurement

[0196] Stitch pattern: Z-shaped pattern

[0197] Photo mode: Covering traces + Writing traces

[0198] Paper feeding speed: 75mm / s

[0199] Weight control mode: automatic placement (wait 2 seconds / 3 seconds / 4 seconds / 5 seconds / 6 seconds to place, cover for 20 seconds to lift)

[0200] Paper drag: 1cm

[0201] The test results are shown in Table 5.

[0202] Table 5. Test results of drying performance (2-6 seconds) of neutral needle-tube black quick-drying pen core

[0203] Number of tests Drying time(s) Seam coverage Writing stitch situation Judgment result 1 2 There are residual traces Overall scratching of the seam Not dried 2 2 There are residual traces Overall scratching of the seam Not dried 3 2 There are residual traces Overall scratching of the seam Not dried 4 3 There are residual traces Scratches on corners of stitches Not dried 5 3 There are residual traces Scratches on corners of stitches Not dried 6 3 No residual seams Scratches on corners of stitches Not dried 7 4 There are residual traces Scratches on corners of stitches Not dried 8 4 No residual seams Scratches on corners of stitches Not dried 9 4 No residual seams No scratches on the seams dry 10 5 No residual seams No scratches on the seams dry 11 5 No residual seams No scratches on the seams dry 12 5 No residual seams No scratches on the seams dry 13 6 No residual seams No scratches on the seams dry 14 6 No residual seams No scratches on the seams dry 15 6 No residual seams No scratches on the seams dry

[0204] As can be seen from the table, under the set conditions, automatic testing is adopted, which is divided into 5 groups with drying time of 2, 3, 4, 5, and 6 seconds, and each group is tested 3 times. Among them, at the 2nd second, there are residual traces on the covering paper, and the traces are scratched as a whole, which is determined to be not completely dry; at the 3rd second, there are both residual traces and no residual traces on the covering paper traces, and the corners of the writing paper traces are scratched, which is determined to be not completely dry; at the 4th second, there are both residual traces and no residual traces on the covering paper traces, and there are also two results of scratches and no scratches on the writing paper traces, and the overall judgment is that two groups are not dry and one group is dry; at the 5th and 6th seconds, there are no residual traces on the trace covering paper, and the writing paper traces are not scratched, which is determined to be completely dry. Therefore, the trace drying time of this writing tool is between 4-5 seconds.

[0205] This group of tests comprehensively considers the drying results of the trace coverage and the writing trace conditions. The traces can only be determined to be dry if there are no residual traces on the covering paper and no scratches on the writing paper.

[0206] Test Example 6

[0207] The sample uses an emulsified ballpoint pen core as the test pen (the pen tip is an emulsified bullet tip 0.7mm pen tip, and the ink is black emulsified ink). The test conditions are set as follows:

[0208] Writing angle: 70°

[0209] Writing paper, covering paper: Writing paper that complies with GB / T12654-2008 with a quantitative specification of 80g / m2

[0210] Load weight specifications: 500g special weight, bottom diameter 50mm;

[0211] Writing load: 60g

[0212] Measuring mode: automatic measurement

[0213] Stitch pattern: Z-shaped pattern

[0214] Photo mode: Covering traces + Writing traces

[0215] Paper feeding speed: 75mm / s

[0216] Weight control mode: automatic placement (wait for 8 seconds / 10 seconds / 12 seconds / 14 seconds / 16 seconds to place, cover for 60 seconds to lift)

[0217] Paper drag: 1cm

[0218] The test results are shown in Table 6.

[0219] Table 6. Test results of dryness of emulsified black pen core (8-16 seconds)

[0220]

[0221]

[0222] As can be seen from the table, under the set conditions, automatic testing was adopted, which was divided into 5 groups with drying time of 8, 10, 12, 14, and 16 seconds, and each group was tested 3 times. At the 8th second, there were residual traces on the covering paper, and the traces were scratched as a whole, which was determined to be not completely dry; at the 10th second, there were both residual traces and no residual traces on the covering paper, and the corners of the writing paper were scratched, which was determined to be not completely dry; at the 12th and 14th seconds, there were no residual traces on the covering paper, and the traces also had two results: scratched corners and no scratches, which was determined to be not completely dry in the whole. At the 16th second, there were no residual traces on the trace covering paper, and there were no scratches on the writing traces, which was determined to be completely dry. Therefore, the trace drying time of this writing tool is between 14-16 seconds.

[0223] This group of tests comprehensively considers the drying results of the trace coverage and the writing trace conditions. The traces can only be determined to be dry if there are no residual traces on the covering paper and no scratches on the writing paper.

[0224] It can be seen from test examples 1-6 that with the help of the writing line drying time measuring equipment of the present invention, the writing line drying conditions of different samples can be qualitatively or quantitatively measured under different conditions, and the line drying performance of writing tools can be scientifically and rationally characterized, providing strong scientific and technological support for improving product quality and developing new products.

[0225] The terms and expressions used herein are for descriptive purposes only, and the present invention should not be limited to these terms and expressions. The use of these terms and expressions does not mean to exclude any equivalent features of the illustrations and descriptions (or parts thereof), and it should be recognized that various modifications that may exist should also be included in the scope of the claims. Other modifications, variations and substitutions may also exist. Accordingly, the claims should be deemed to cover all such equivalents.

[0226] Similarly, it should be pointed out that although the present invention has been described with reference to the current specific embodiments, ordinary technicians in this technical field should realize that the above embodiments are only used to illustrate the present invention, and various equivalent changes or substitutions may be made without departing from the spirit of the present invention. Therefore, as long as the changes and modifications to the above embodiments are within the scope of the essential spirit of the present invention, they will fall within the scope of the claims of the present invention.

Claims

1. A writing line drying time measuring device, used for quantitatively measuring the writing line drying time of a writing tool on a writing paper, characterized in that: include: A sliding mechanism (1) for maintaining the writing tool in a fixed state or allowing it to move smoothly; An angle adjustment mechanism (2) for adjusting the writing angle between the writing tool and the writing paper surface; A sleeve mechanism (3) for clamping the writing tools of different models and specifications; The platform mechanism (4) is used to place the writing paper and, through the writing paper control device, automatically roll the paper, control the paper feeding speed and ensure the flatness of the paper; The weight mechanism (5) is used to set the covering paper and the load weight, and to automatically roll the paper, control the paper feeding speed and ensure the flatness of the paper through the covering paper control device; The video detection system (6) is used to shoot the writing paper after writing or the covering paper after covering, and input the video data into a computer installed with video detection software, and the computer automatically detects and determines the video data. The sliding mechanism (1) includes a fixed block (11), a sliding block (12), a locking screw (13), a sliding screw (14), and a sliding groove (15). The sliding block (12) is kept in a fixed state by tightening the sliding screw (14), or is kept in a sliding state by loosening the sliding screw (14); The sliding groove (15) is arranged inside the fixed block (11), and the sliding groove (15) limits the sliding block (12) to perform repeated translational movement within a certain range; The locking screw (13) is used to connect the sliding mechanism (1) and the angle adjustment mechanism (2). A manual operating system (7) is provided on the platform mechanism (4), including a switch and a display window, for debugging and manual control of the equipment. The switches include a start switch (71), an emergency stop switch (72), a manual paper feed switch (73), a manual photo switch (74), a manual timing switch (75), and a manual paper feed switch (76). The display window comprises a timing display window (77).

2. The writing line drying time measuring device according to claim 1, characterized in that: The angle adjustment mechanism (2) comprises a protractor (21), an angle screw (22), an angle clamping block (23), a height screw (24), and a height clamping block (25). The two ends of the angle clamping block (23) are respectively connected to the sliding block (12) and the height clamping block (25), and a hole is drilled inside for passing the angle screw (22); The angle screw (22) can be adjusted in tightness and rotated within a certain range, and the angle screw (22) is locked to maintain the selected angle and support the height clamping block (25) through the locking force; The protractor (21) is arranged on the side of the angle clamping block (23) and is used to assist the angle adjustment device (2) in determining the angle; The height clamping block (25) is used to fix the sleeve mechanism (3), and the height clamping block (25) is used to fine-tune its own height through the height screw (24).

3. The writing line drying time measuring device according to claim 2, characterized in that: The sleeve mechanism (3) comprises a sleeve support (31) and a sleeve (32). The sleeve bracket (31) is fixed to one end of the height clamping block (25); The outer diameter of the sleeve (32) is smaller than the inner diameter of the sleeve bracket (31), and the sleeve (32) is arranged in the sleeve bracket (31) to slide freely; A fastening screw is provided inside the sleeve (32) for fixing the writing tool.

4. The writing line drying time measuring device according to claim 1, characterized in that: The platform mechanism (4) comprises a main body transmission system, a writing paper feeding device, a writing paper receiving device, a writing paper pressing wheel (410), a writing paper pressing wheel shaft (411), and writing paper (412). The main body transmission system comprises a linkage main shaft (41), a coupling (42), a main platform (43), and a servo motor (44), and is used to provide transmission force; The writing paper feeding device comprises a writing paper feeding roll (45) and a writing paper feeding reel (46); the writing paper receiving device comprises a writing paper receiving roll (47), a writing paper receiving reel (48), and a writing paper reel motor (49); The writing paper (412) is laid flat on the main platform (43); one end of the writing paper (412) is connected to the writing paper feed roll (45); the other end of the writing paper (412) is connected to the writing paper collection roll (45) via the writing paper roll motor (49); the writing paper (412) is automatically fed, fed and collected by the writing paper roll motor (49); and the writing paper pressure wheel (410) and the writing paper pressure wheel shaft (411) are used to keep the paper flat.

5. The writing line drying time measuring device according to claim 4, characterized in that: The weight mechanism (5) comprises a covering paper linkage device, a load-bearing device, and a covering paper collection motor (59). The load-bearing device comprises a load weight (54) and a weight clamp (55), wherein the load weight (54) is used to press on the cover paper so that the cover paper and the writing paper (412) are attached to each other, and the weight clamp (55) is used to fix the load weight (54) and control the rise and fall of the load weight (54). The covering paper linkage device comprises a covering paper feed roll (51), a covering paper feed reel (52), covering paper (53), a covering paper pressure wheel (56), a covering paper receiving roll (57), and a covering paper receiving reel (58). One end of the covering paper (53) is connected to the covering paper feeding roll (51), and the other end of the covering paper (53) is connected to the covering paper receiving roll (57) via the covering paper receiving motor (59). The covering paper (53) is automatically fed, fed and received by the covering paper receiving motor (59), and the covering paper pressing wheel (56) is used to keep the paper flat.

6. The writing line drying time measuring device according to claim 5, characterized in that: The video detection system (6) comprises a covering paper camera (61), a writing paper camera (62), and a computer (63). The lens direction of the covering paper camera (61) is perpendicular to the covering paper (53), and is used to capture and photograph the ink stains on the covering paper (53); The lens direction of the writing paper camera (62) is perpendicular to the writing paper (412), and is used to capture and photograph the writing lines on the writing paper (412); The computer (63) includes detection software for receiving and analyzing photographic data and controlling the writing line drying time measuring device.

7. A method for measuring the drying time of written traces, characterized in that: The method for measuring the drying time of written traces uses the writing trace drying time measuring device according to any one of claims 1 to 6, comprising the steps of: a) adjusting the angle adjustment mechanism (2) to set the writing angle of the writing tool; b) adjusting the platform mechanism (4), replacing the writing paper (412) with a suitable one in coordination with the writing tool, and ensuring the flatness of the writing paper (412); c) adjusting the covering paper linkage device, replacing the covering paper (53) with the writing paper (412), and ensuring the flatness of the covering paper (53); d) adjusting the weight mechanism (5) and selecting an appropriate load weight (54) to ensure that the load weight (54) can be freely lifted or lowered to press on the cover paper (53); e) Open the detection software and make measurement settings; f) adjusting the sleeve (32) to set the load of the writing tool; placing the writing tool into the sleeve (32) and tightening it, and fixing the sleeve (32) in the sleeve bracket (31) so that the pen tip of the writing tool is in contact with the writing paper (412); g) starting the detection software, wherein the detection software automatically controls paper feeding, timing, positioning, paper pressing, and shooting according to the measurement settings; h) The computer compares and determines the captured covered traces or written traces, and calculates whether the traces are dry within a fixed drying time based on the time calculated by reverse calculation based on the paper feed speed, thereby completing the qualitative characterization; and calculates the actual drying time of the traces based on the drying conditions at multiple groups of different paper feed speeds, thereby completing the quantitative characterization.

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