A fountain pen writing slip detection device and detection method

Abstract

The present invention discloses a device and method for detecting the writing smoothness of a fountain pen, belonging to the technical field of detecting the writing smoothness of a fountain pen, comprising a support seat, a bracket, a support rod, and a mounting seat, wherein the mounting seat is provided with a first connecting frame through a first tightening screw, the first connecting frame is provided with a sensor and a second connecting frame in sequence, and the second connecting frame is provided with a linear bearing through a second tightening screw; a guide sleeve slidably mounted in the linear bearing is mounted on the pen barrel of the fountain pen; a motor is mounted on the support seat, and a support plate is mounted on the motor shaft through a rotating seat. By testing the writing smoothness of the five strokes of the fountain pen, namely, horizontal, vertical, left-falling, right-falling, and right-falling, a writing state measurement model of Chinese characters can be formed, and the quantification of the detection results of the fluidity of the fountain pen can be realized, which can objectively reflect the writing quality of the fountain pen and effectively distinguish the differences in the quality of the fountain pen. The overall structure is simple, easy to implement, and has good practicality.

Description

Technical Field

[0001] The invention belongs to the technical field of fountain pen writing slippage detection, in particular to a fountain pen writing slippage detection device and a detection method. Background Art

[0002] A fountain pen, also known as a steel pen, is a pen that relies on the close fit between the pen tongue and the nib, and then uses a dropper to inject ink into the hollow pen shaft. Relying on capillary gravity, the ink automatically flows to the nib to achieve the writing effect. It is one of the most widely used writing tools we currently use.

[0003] In order to test the writing fluency of fountain pens, pen manufacturers need to conduct corresponding tests on the pens they produce.

[0004] The method for testing the fluency of traditional fountain pens is to have qualified personnel write the character "8". In the process of writing the character "8", they carefully feel the feel of each stroke and record or judge the quality of each part of the writing iridium grain of the fountain pen.

[0005] The above-mentioned method for detecting the smoothness of fountain pen writing is highly subjective, and cannot quantify the detection results of the smoothness of fountain pen writing, cannot objectively reflect the writing smoothness of fountain pen, and cannot effectively distinguish the differences in the quality of fountain pens. Summary of the invention

[0006] In order to solve the problems that the traditional method for detecting the smoothness of a fountain pen is highly subjective, cannot quantify the detection result of the smoothness of the fountain pen, cannot objectively reflect the writing smoothness of the fountain pen, and cannot effectively distinguish the difference in the quality of the fountain pen, the present invention provides a device and a method for detecting the writing smoothness of a fountain pen.

[0007] On the one hand, the present invention is achieved through the following technical solutions:

[0008] A fountain pen writing slip detection device comprises a support seat, a bracket and a support rod installed on the bracket, the support rod is provided with a mounting seat, a first connecting frame is rotatably and adjustably installed on the mounting seat through a first tightening screw in the front-back direction, a sensor is installed on the end of the first connecting frame away from the mounting seat, a second connecting frame is installed on one side of the sensor, and a linear bearing is rotatably and adjustably installed on the second connecting frame through a second tightening screw in the left-right direction; a positioning sleeve on the pen barrel of the fountain pen is provided with a guide sleeve slidably installed in the linear bearing; a motor is installed on the support seat, and a support plate capable of placing writing paper is connected and installed at the end of the motor shaft through a rotating seat, and the support plate is located at the lower part of the fountain pen.

[0009] A further improvement of the present invention is that an inward annular guide sleeve flange is provided on the inner ring of the guide sleeve, and the guide sleeve flange is positioned and pressed between the outer shell of the fountain pen and the pen barrel.

[0010] A further improvement of the present invention is that the upper end of the guide sleeve extends upward to the upper part of the outer shell of the fountain pen.

[0011] A further improvement of the present invention is that a scale disk is installed on the mounting seat, and an indicating rod corresponding to the scale disk is installed on the first connecting frame. The indicating rod and the scale disk cooperate to indicate the rotation angle of the first connecting frame relative to the mounting seat.

[0012] A further improvement of the present invention is that a connecting seat that can be rotatably adjusted and installed with the second connecting frame is connected and installed on one side of the linear bearing. An angle scale is provided on the connecting seat, and a second indicating marking corresponding to the angle scale on the connecting seat is provided on the second connecting frame.

[0013] A further improvement of the present invention is that a scale ring is positioned and sleeved on the guide sleeve. An angle scale is provided on the scale ring, and a first indicating marking corresponding to the angle scale on the scale ring is provided on the upper side of the linear bearing.

[0014] A further improvement of the present invention is that the mounting seat is connected and installed with the support rod through a two-way adjustment mechanism, and the two-way adjustment mechanism can adjust the mounting seat forward and backward, up and down.

[0015] A further improvement of the present invention is that a linear adjustment mechanism capable of horizontally axially adjusting the support rod is installed on the bracket.

[0016] A further improvement of the present invention is that a paper receiving roll and a base paper roll are respectively rotatably installed at the left and right ends of the support plate through mounting plates; guide rollers capable of guiding the writing paper are respectively installed at the left and right ends of the support plate; a guide pressing plate capable of pressing and limiting the writing paper is installed on the support plate.

[0017] Another aspect of the present invention is realized through the following technical solutions:

[0018] A method for detecting the writing smoothness of a fountain pen includes the following steps:

[0019] Step 1: Simulate and detect the "撇" stroke state of the fountain pen;

[0020] Adjust the first tightening screw and the second tightening screw so that the axis of the linear bearing is perpendicular to the support plate, and the axis of the fountain pen is directly to the left of the motor rotating shaft; adjust the first tightening screw so that the fountain pen forms an angle of 50 - 80 degrees with the support plate; rotate the guide sleeve on which the fountain pen is rotatably installed relative to the linear bearing so that the pen tip is directly to the left of the pen tongue; rotate the motor clockwise and measure the average value of the sensors when the support plate rotates one week.

[0021] Step 2: Simulate and detect the state of the fountain pen "lifting" stroke;

[0022] In step 1, the motor rotates counterclockwise and measures the average value of the sensor when the support plate rotates one circle;

[0023] Step 3: Simulate the detection of the state of the "na" stroke of a fountain pen;

[0024] Adjust the first tightening screw and the second tightening screw to make the linear bearing axis perpendicular to the support plate and the fountain pen axis just to the left of the motor shaft; adjust the second tightening screw to make the fountain pen and the support plate form an angle of 50-80 degrees; rotate the guide sleeve on which the fountain pen is installed relative to the linear bearing so that the pen tip is just in front of the pen tongue; rotate the motor counterclockwise and measure the average value of the sensor when the support plate rotates one circle;

[0025] Step 4: Simulate and detect the "vertical" stroke state of the fountain pen;

[0026] In step 3, the guide sleeve on which the fountain pen is mounted is rotated counterclockwise by 20-50 degrees relative to the linear bearing, the motor rotates counterclockwise, and the average value of the sensor when the support plate rotates one circle is measured;

[0027] Step 5: Simulate and detect the "horizontal" stroke state of a fountain pen;

[0028] In step three, the guide sleeve on which the fountain pen is mounted is rotated clockwise by 40-70 degrees relative to the linear bearing, and the motor is rotated counterclockwise to measure the average value of the sensor when the support plate rotates one circle.

[0029] It can be seen from the above technical solutions that the beneficial effects of the present invention are:

[0030] By testing the writing smoothness of the five strokes of the fountain pen, namely horizontal, vertical, left-falling, right-falling and right-falling, a writing state measurement model for all Chinese characters can be basically formed, and the test results of the fluency of the fountain pen can be quantified, which can truly and objectively reflect the writing quality of the fountain pen and effectively distinguish the differences in the quality of the fountain pen. By driving the rotating seat with a motor, the writing action of the fountain pen hanging on the writing paper can be realized, so that the writing fluency of the fountain pen can be reflected by the size and fluctuation of the sensor measurement value. The guide sleeve and the linear bearing are used to change the original vertical friction from sliding friction to rolling friction, which greatly reduces the friction in the direction of gravity, and the friction caused by gravity is basically eliminated. Therefore, during the test process, the pen tip of the fountain pen always relies on gravity to fall on the paper, and the gravity is basically unchanged. Therefore, the friction tested has basically no fluctuation interference, ensuring accurate and reliable measurement of the writing fluency of the fountain pen. The overall structure is simple, easy to implement, and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0032] Figure 1 It is a structural schematic diagram of a specific implementation mode of the present invention.

[0033] Figure 2 It is a schematic diagram of the top structure of a specific implementation mode of the present invention.

[0034] Figure 3 It is an enlarged schematic diagram of the installation of a fountain pen according to a specific embodiment of the present invention.

[0035] Figure 4 It is a schematic diagram of the installation of a fountain pen and a guide sleeve according to a specific embodiment of the present invention.

[0036] Figure 5 for Figure 3 Schematic diagram of the top view structure.

[0037] Figure 6 It is a schematic diagram of the side view structure of the linear bearing installation according to a specific embodiment of the present invention.

[0038] Figure 7 It is a schematic diagram of the guide pressure plate structure of a specific implementation mode of the present invention.

[0039] In the accompanying drawings: 2. Support seat, 3. Motor, 4. Rotating seat, 5. Support plate, 6. Bracket, 7. Linear adjustment mechanism, 8. Support rod, 9. Fountain pen, 91. Tap housing, 10. Mounting plate, 11. Original paper roll, 12. Paper collection roll, 13. Guide pressure plate, 14. Guide roller, 15. Bidirectional adjustment mechanism, 16. Mounting seat, 17. First connecting frame, 18. Sensor, 19. Linear bearing, 191. Connecting seat, 192. First indicator mark, 20. Guide sleeve, 201. Guide sleeve flange, 21. Second connecting frame, 211. Second indicator mark, 22. First tightening screw, 23. Second tightening screw, 24. Indicator rod, 25. Dial, 26. Scale ring, 27. Top screw. DETAILED DESCRIPTION

[0040] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0041] like Figure 1-6 As shown, the present invention discloses a fountain pen writing slip detection device, comprising a support seat 2, a bracket 6 and a left and right horizontal support rod 8 installed on the bracket 6, a mounting seat 16 is provided on the support rod 8, a first connecting frame 17 is rotatably mounted on the mounting seat 16 through a first tightening screw 22 in the front-to-back direction, a sensor 18 is mounted on the end of the first connecting frame 17 away from the mounting seat 16 (the force direction of the sensor 18 is the front-to-back direction), a second connecting frame 21 is mounted on one side of the sensor 18, and a linear bearing 19 is rotatably mounted on the second connecting frame 21 through a second tightening screw 23 in the left-to-right direction; a positioning sleeve on the pen barrel of the fountain pen 9 is provided with a guide sleeve 20 slidably mounted in the linear bearing 19; an upright motor 3 is installed on the support seat 2, and a horizontal support plate 5 capable of placing writing paper is connected and mounted on the end of the motor 3 shaft through a rotating seat 4, and the support plate 5 is located at the lower part of the fountain pen 9.

[0042] Step 1: By adjusting the first tightening screw 22 and the second tightening screw 23, make the axis of the linear bearing 19 perpendicular to the support plate 5 (in the vertical state), and make the axis of the fountain pen 9 directly to the left of the rotating shaft of the motor 3; adjust the first tightening screw 22 to make the fountain pen 9 form an angle of 50 - 80 degrees with the support plate 5 (preferably 65 degrees), and the position where the tip of the pen touches the writing paper is to the left of the center of the writing paper (the extended position of the rotating shaft of the motor 3), ensuring that the force direction of the sensor 18 is in the front - back direction); rotate the guide sleeve 20 with the fountain pen 9 installed relative to the linear bearing 19 so that the tip of the pen is directly to the left of the pen tongue; the direction of the tip of the pen (relative to the pen tongue to the left) is perpendicular to the force direction of the sensor 18 (front - back direction). Rotate the motor 3 clockwise and measure the average value of the sensor 18 when the support plate 5 rotates one week, which is the frictional force of the fountain pen 9 writing the "left - falling stroke", thus reflecting the smoothness of the corresponding "left - falling stroke" writing. Step 2: In Step 1, rotate the motor 3 counter - clockwise in the reverse direction, measure the average value of the sensor 18 when the support plate 5 rotates one week, which is the frictional force of the fountain pen 9 writing the "rising stroke", thus reflecting the smoothness of the corresponding "rising stroke" writing. Step 3: Adjust the first tightening screw 22 and the second tightening screw 23 to make the axis of the linear bearing 19 perpendicular to the support plate 5, and make the axis of the fountain pen 9 directly to the left of the rotating shaft of the motor 3; adjust the second tightening screw 23 to make the fountain pen 9 form an angle of 50 - 80 degrees with the support plate 5 (preferably 65 degrees), and the position where the tip of the pen touches the writing paper is directly to the left of the center of the writing paper, ensuring that the force direction of the sensor 18 is in the front - back direction); rotate the guide sleeve 20 with the fountain pen 9 installed relative to the linear bearing 19 so that the tip of the pen is directly in front of the pen tongue; the direction of the tip of the pen (relative to the pen tongue forward) is parallel to the force direction of the sensor 18 (front - back direction). Rotate the motor 3 counter - clockwise and measure the average value of the sensor 18 when the support plate 5 rotates one week, which is the frictional force of the fountain pen 9 writing the "right - falling stroke", thus reflecting the smoothness of the corresponding "right - falling stroke" writing. Step 4: In Step 3, rotate the guide sleeve 20 with the fountain pen 9 installed counter - clockwise relative to the linear bearing 19 by an angle of 20 - 50 degrees (preferably 30 degrees), rotate the motor 3 counter - clockwise, and measure the average value of the sensor 18 when the support plate 5 rotates one week, which is the frictional force of the fountain pen 9 writing the "vertical stroke", thus reflecting the smoothness of the corresponding "vertical stroke" writing. Step 5: In Step 3, rotate the guide sleeve 20 with the fountain pen 9 installed clockwise relative to the linear bearing 19 by an angle of 40 - 70 degrees (preferably 60 degrees), rotate the motor 3 counter - clockwise, and measure the average value of the sensor 18 when the support plate 5 rotates one week, which is the frictional force of the fountain pen 9 writing the "horizontal stroke", thus reflecting the smoothness of the corresponding "horizontal stroke" writing. By testing the writing smoothness of the "horizontal, vertical, left - falling, right - falling, rising" five strokes of the fountain pen 9, a measurement model for the writing state of all Chinese characters can be basically formed, realizing the quantification of the detection results of the fluency of the fountain pen 9, which can truly and objectively reflect the writing quality of the fountain pen 9 and effectively distinguish the differences in the quality of the fountain pen 9.The overall structure is simple, the detection is convenient and efficient, the implementation is easy, and the practicability is good.

[0043] The motor 3 drives the rotating seat 4 to rotate, so that the writing action of the fountain pen 9 hanging on the writing paper can be realized, so that the size and fluctuation of the measured value of the sensor 18 reflect the writing fluency of the fountain pen 9. The guide sleeve 18 is used in conjunction with the linear bearing 17 to change the original vertical friction from sliding friction to rolling friction, which greatly reduces the friction in the direction of gravity, and the friction caused by gravity is basically eliminated. Therefore, during the test process of the fountain pen 9, the pen tip always relies on gravity to fall on the paper, and the gravity is basically unchanged. Therefore, the friction tested is basically free of fluctuation interference, ensuring accurate and reliable measurement of the writing fluency of the fountain pen 9.

[0044] Among them, since the pen diameter, pen tip diameter, and pen tip length of the fountain pen 9 are different, weights of different weights must be configured on the guide sleeve 20 when writing, so that different types of fountain pens 9 are equipped with weights of different weights, and the final total weight is consistent, which is convenient for calculating the friction coefficient.

[0045] The inner ring of the guide sleeve 20 is provided with an inwardly annular guide sleeve flange 201, and the guide sleeve flange 201 is positioned and pressed between the fountain pen housing 91 and the pen holder. The guide sleeve flange 201 is positioned and pressed at the lower end of the fountain pen housing 91, and the clamping position is consistent with the writing pen holding position, which can ensure the authenticity of the detection.

[0046] The upper end of the guide sleeve 20 extends upward to the upper part of the fountain pen housing 91. The guide length is increased, and the gasket sleeved on the upper part of the fountain pen housing 91 is used to achieve reliable positioning with the upper part of the guide sleeve 20, ensuring the coaxiality of the positioning installation of the guide sleeve 20 and the fountain pen 9, avoiding the problem of inaccurate measurement caused by deviation.

[0047] Among them, Figure 3 As shown, a scale plate 25 is mounted on the mounting seat 16, and an indicator rod 24 corresponding to the scale plate 25 is mounted on the first connecting frame 17. The indicator rod 24 and the scale plate 25 cooperate to indicate the rotation angle of the first connecting frame 17 relative to the mounting seat 16. When the first connecting frame 17 (sensor 18) is horizontal, the indicator rod 24 points to the "zero" scale on the scale plate 25, and the flexibility and accuracy of the rotation angle adjustment are achieved by the first tightening screw 22 in the front-back direction.

[0048] Among them, Figure 5-6As shown, a connection seat 191 is connected to one side of the linear bearing 19 and is rotatably mounted with the second connection frame 21. An angle scale is provided on the connection seat 191, and a second indicator line 211 corresponding to the angle scale on the connection seat 191 is provided on the second connection frame 21. When the connection seat 191 and the second connection frame 21 are in the same direction, the second indicator line 211 indicates the "zero" scale on the connection seat 191, and the flexibility and accuracy of the rotation angle adjustment are achieved by the second tightening screw 23 in the left and right directions.

[0049] The first tightening screw 22 and the second tightening screw 23 are both hand-tightened screws, and reliable positioning is achieved through tightening force.

[0050] Among them, as shown in 3-5, the positioning sleeve on the guide sleeve 20 is provided with a scale ring 26, and the scale ring 26 is provided with an angle scale, and the upper side of the linear bearing 19 is provided with a first indicator mark 192 corresponding to the angle scale on the scale ring 26. The outer side of the pen tip faces the "zero" scale on the scale ring 26. When the outer side of the pen tip faces forward, the first indicator mark 192 indicates the "zero" scale on the scale ring 26. The guide sleeve 20 rotates in the linear bearing 19, so as to realize the flexibility and accuracy of the rotation angle adjustment of the fountain pen 9, and realize the flexible adjustment of the detection of "horizontal", "vertical" and "falling" strokes.

[0051] Furthermore, the scale ring 26 is positioned and installed with the guide sleeve 20 through the top screw 27, so that the scale ring 26 is easy to adjust and the positioning is reliable.

[0052] Among them, the mounting seat 16 is connected and installed with the support rod 8 through a two-way adjustment mechanism 15, and the two-way adjustment mechanism 15 can adjust the mounting seat 16 forward and backward and up and down. The two-way adjustment mechanism 15 adopts two sets of screw rods and slide rails installed together; that is, one set of screw rods and slide rails in the front and back direction, and another set of screw rods and slide rails in the up and down direction. By rotating the corresponding screw rod, the front and back direction and vertical direction of the mounting seat 16 (first connecting frame 17, sensor 18, linear bearing 19, fountain pen 9) can be flexibly adjusted, so as to ensure that the position where the iridium grain of the pen tip contacts the paper is located just to the left of the center of the paper circle, to ensure the vertical force of the left and right direction sensor 18, and to ensure the accuracy of the test.

[0053] Among them, a linear adjustment mechanism 7 capable of horizontally axially adjusting the support rod 8 is installed on the bracket 6. The linear adjustment mechanism 7 includes a screw rod and a moving seat fitted with the screw rod. The moving seat is slidably installed with the upper part of the bracket 6 through a guide rail and connected to the support rod 8. The screw rod is rotated by a hand wheel to adjust the horizontal position of the fountain pen 9, thereby quantifying the drawing radius and facilitating the precise control of the drawing speed.

[0054] Among them, Figure 1 , 2As shown in FIGS. 7, both the left and right ends of the support plate 5 are rotatably mounted with a paper receiving roll 12 and a base paper roll 11 respectively through mounting plates 10; both the left and right ends of the support plate 5 are respectively provided with guide rollers 14 capable of guiding the writing paper; and a guide pressing plate 13 capable of pressing and limiting the writing paper is mounted on the support plate 5. The mounting plates 10 are provided with notches capable of clamping the shafts of the paper receiving roll 12 and the base paper roll 11. The writing paper on the base paper roll 11 is pulled out, guided by the left guide roller 14, limited by the left guide pressing plate 13, laid flat on the support plate 5, passes through the right guide pressing plate 13, winds around the right guide roller 14, and is wound by the paper receiving roll 12 (manually or electrically), so as to realize the flexible and convenient sliding replacement of the writing paper and the convenience of use.

[0055] The present invention also discloses a method for detecting the writing smoothness of a fountain pen, comprising the following steps:

[0056] Step 1: Simulating and detecting the "flick" stroke state of the fountain pen;

[0057] By adjusting the first tightening screw 22 and the second tightening screw 23, the axis of the linear bearing 19 is perpendicular to the support plate 5, and the axis of the fountain pen 9 is directly to the left of the rotating shaft of the motor 3; by adjusting the first tightening screw 22, the fountain pen 9 and the support plate 5 (with the writing paper laid flat on the support plate 5) form an angle of 50-80 degrees (preferably 65 degrees), and the position where the pen tip abuts against the writing paper is to the left of the center of the writing paper, ensuring that the force direction of the sensor 18 is in the front-back direction; the guide sleeve 20 with the fountain pen 9 rotatably mounted relative to the linear bearing 19 is adjusted so that the pen tip is directly to the left of the feed nib; the pen tip direction (relative to the feed nib to the left) is perpendicular to the force direction (front-back direction) of the sensor 18. The motor 3 rotates clockwise, and the average value of the sensor 18 when the support plate 5 rotates one week is measured, which is the frictional force of the fountain pen 9 writing the "flick" stroke, thereby reflecting the smoothness of the corresponding "flick" stroke.

[0058] Step 2: Simulating and detecting the "lift" stroke state of the fountain pen;

[0059] In Step 1, the motor 3 rotates counterclockwise, and the average value of the sensor 18 when the support plate 5 rotates one week is measured, which is the frictional force of the fountain pen 9 writing the "lift" stroke, thereby reflecting the smoothness of the corresponding "lift" stroke.

[0060] Step 3: Simulating and detecting the "press" stroke state of the fountain pen;

[0061] Adjust the first tightening screw 22 and the second tightening screw 23 to make the axis of the linear bearing 19 perpendicular to the support plate 5, and make the axis of the fountain pen 9 just to the left of the rotating shaft of the motor 3; adjust the second tightening screw 23 to make the fountain pen 9 and the support plate 5 form an angle of 50-80 degrees (preferably 65 degrees, the position where the pen tip abuts the writing paper is located on the left side of the center of the writing paper, to ensure that the force direction of the sensor 18 is the front-to-back direction); rotate the guide sleeve 20 on which the fountain pen 9 is installed relative to the linear bearing 19 so that the pen tip is just in front of the pen tongue; the direction of the pen tip (forward relative to the pen tongue) is parallel to the force direction of the sensor 18 (front-to-back direction), the motor 3 rotates counterclockwise, and the average value of the sensor 18 after the support plate 5 rotates one circle is measured, which is the friction force of the fountain pen 9 writing the "na" stroke, thereby reflecting the corresponding smoothness of the writing "na" stroke;

[0062] Step 4: Simulate and detect the "vertical" stroke state of the fountain pen;

[0063] In step three, the guide sleeve 20 on which the fountain pen 9 is mounted is rotated counterclockwise relative to the linear bearing 19 by an angle of 20-50 degrees (preferably 30 degrees), the motor 3 is rotated counterclockwise, and the average value of the sensor 18 after the support plate 5 rotates one circle is measured, which is the friction force of the fountain pen 9 writing the "vertical" stroke, thereby reflecting the corresponding smoothness of the writing "vertical" stroke;

[0064] Step 5: Simulate and detect the "horizontal" stroke state of a fountain pen;

[0065] In step 3, the guide sleeve 20 on which the fountain pen 9 is mounted is rotated clockwise by 40-70 degrees (preferably 60 degrees) relative to the linear bearing 19, and the motor 3 is rotated counterclockwise, and the average value of the sensor 18 after the support plate 5 rotates one circle is measured, which is the friction force of the fountain pen 9 writing the "horizontal" stroke, thereby reflecting the corresponding smoothness of the writing "horizontal" stroke;

[0066] The present fountain pen writing smoothness detection device and detection method can basically form a writing state measurement model for all Chinese characters by testing the writing smoothness of the five strokes of the fountain pen 9, namely, horizontal, vertical, left-falling, right-falling, and right-falling strokes, and realize the quantification of the test results of the smoothness of the fountain pen 9, which can truly and objectively reflect the writing quality of the fountain pen 9 and effectively distinguish the differences in the quality of the fountain pen 9. The motor 3 drives the rotating seat 4 to rotate, so that the writing action of the fountain pen 9 hanging on the writing paper can be realized, so that the writing smoothness of the fountain pen 9 can be reflected by the size and fluctuation of the measured value of the sensor 18. The guide sleeve 18 is used in conjunction with the linear bearing 17 to change the original vertical friction force from sliding friction to rolling friction, which greatly reduces the friction force in the direction of gravity, and the friction force caused by gravity is basically eliminated. Therefore, during the test process, the pen tip of the fountain pen 9 always falls on the paper by gravity, and the gravity is basically unchanged. Therefore, the friction force tested is basically free of fluctuation interference, ensuring accurate and reliable measurement of the writing smoothness of the fountain pen 9. The overall structure is simple, easy to implement and has good practicality.

[0067] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0068] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0069] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fountain pen writing slip detection device, characterized in that: It includes a support base (2), a bracket (6), and a support rod (8) installed on the bracket (6). There is a mounting seat (16) on the support rod (8). A first connecting frame (17) is rotatably adjustable on the mounting seat (16) by a first tightening screw (22) in the front-back direction. A sensor (18) is installed at one end of the first connecting frame (17) away from the mounting seat (16). A second connecting frame (21) is installed on one side of the sensor (18). A linear bearing (19) is rotatably adjustable on the second connecting frame (21) by a second tightening screw (23) in the left-right direction; a guide sleeve (20) slidably installed in the linear bearing (19) is positioned and sleeved on the pen shaft of the fountain pen (9); a motor (3) is installed on the support base (2). The rotating shaft end of the motor (3) is connected and installed with a horizontal support plate (5) capable of placing writing paper. The support plate (5) is located below the fountain pen (9). An inward annular guide sleeve flange (201) is provided on the inner ring of the guide sleeve (20). The guide sleeve flange (201) is positioned and pressed between the fountain pen outer shell (91) and the pen shaft. The upper end of the guide sleeve (20) extends upward to the upper part of the fountain pen outer shell (91). A scale ring (26) is positioned and sleeved on the guide sleeve (20). Angle scales are provided on the scale ring (26). A first indicating mark line (192) corresponding to the angle scales on the scale ring (26) is provided on the upper side of the linear bearing (19).

2. The fountain pen writing slip detection device according to claim 1, characterized in that: A scale disk (25) is installed on the mounting seat (16). An indicating标杆 (24) corresponding to the scale disk (25) is installed on the first connecting frame (17). The indicating标杆 (24) and the scale disk (25) cooperate to indicate the rotation angle of the first connecting frame (17) relative to the mounting seat (16).

3. The fountain pen writing slip detection device according to claim 1, characterized in that: A connecting seat (191) rotatably adjustable with the second connecting frame (21) is connected and installed on one side of the linear bearing (19). Angle scales are provided on the connecting seat (191). A second indicating mark line (211) corresponding to the angle scales on the connecting seat (191) is provided on the second connecting frame (21).

4. The fountain pen writing slip detection device according to claim 1, characterized in that: The mounting seat (16) is connected and installed with the support rod (8) through a two-way adjustment mechanism (15). The two-way adjustment mechanism (15) can adjust the mounting seat (16) forward and backward, and up and down.

5. The fountain pen writing slip detection device according to claim 1, characterized in that: A linear adjustment mechanism (7) capable of horizontally axially adjusting the support rod (8) is installed on the bracket (6).

6. The fountain pen writing slip detection device according to claim 1, characterized in that: A paper receiving roll (12) and a raw paper roll (11) are respectively rotatably installed at the left and right ends of the support plate (5) through mounting plates (10); guide rollers (14) capable of guiding the writing paper are respectively installed at the left and right ends of the support plate (5); a guide pressing plate (13) capable of pressing and limiting the writing paper is installed on the support plate (5).

7. A method for detecting the writing slippage of a fountain pen, characterized in that: When using the fountain pen writing smoothness detection device according to any one of claims 1-6, the detection method includes the following steps: Step 1: Simulate the detection of the "撇" stroke state of the fountain pen (9). The first tightening screw (22) and the second tightening screw (23) are adjusted so that the axis of the linear bearing (19) is perpendicular to the support plate (5) and the axis of the fountain pen (9) is directly to the left of the rotating shaft of the motor (3); the first tightening screw (22) is adjusted so that the fountain pen (9) and the support plate (5) form an angle of 50-80 degrees; the guide sleeve (20) on which the fountain pen (9) is mounted is rotated relative to the linear bearing (19) so that the pen tip is directly to the left of the pen tongue; the motor (3) is rotated clockwise to measure the average value of the sensor (18) after the support plate (5) rotates one circle; Step 2: Simulate detection of the "lift" stroke state of the fountain pen (9); In step 1, the motor (3) rotates counterclockwise to measure the average value of the sensor (18) when the support plate (5) rotates one circle; Step 3: Simulate detection of the "na" stroke state of the fountain pen (9); The first tightening screw (22) and the second tightening screw (23) are adjusted so that the axis of the linear bearing (19) is perpendicular to the support plate (5) and the axis of the fountain pen (9) is directly to the left of the rotating shaft of the motor (3); the second tightening screw (23) is adjusted so that the fountain pen (9) and the support plate (5) form an angle of 50-80 degrees; the guide sleeve (20) on which the fountain pen (9) is mounted is rotated relative to the linear bearing (19) so that the pen tip is directly in front of the pen tongue; the motor (3) is rotated counterclockwise to measure the average value of the sensor (18) after the support plate (5) rotates one circle; Step 4: Simulate detection of the "vertical" stroke state of the fountain pen (9); In step 3, the guide sleeve (20) on which the fountain pen (9) is mounted is rotated counterclockwise by 20-50 degrees relative to the linear bearing (19), the motor (3) is rotated counterclockwise, and the average value of the sensor (18) after the support plate (5) rotates one circle is measured; Step 5: Simulate detection of the "horizontal" stroke state of the fountain pen (9); In step three, the guide sleeve (20) on which the fountain pen (9) is mounted is rotated clockwise by an angle of 40-70 degrees relative to the linear bearing (19), and the motor (3) is rotated counterclockwise to measure the average value of the sensor (18) after the support plate (5) rotates one circle.

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