A writing smoothness detection device

Abstract

The utility model discloses a writing pen smoothness detection device, including writing table, be provided with the guide on writing table, pen seat slidingly arranged on the guide, pen seat is configured as install writing pen, two photoelectric sensors are along the length direction interval of guide and are provided, timer is configured as the time of pen seat passing two photoelectric sensors in proper order is measured. The present application directly judges the smooth performance of writing pen based on time, simple structure, low in cost.

Description

Technical Field

[0001] This utility model relates to the field of writing instrument technology, and in particular to a writing pen smoothness detection device. Background Technology

[0002] Currently, users have increasingly higher requirements for the smoothness of writing pens such as ballpoint pens, gel pens, and direct-liquid pens, in order to achieve a smooth writing experience. One existing testing device includes a writing surface and a pen holder. The pen holder is used to hold the writing pen, and its position is fixed. The writing surface moves, causing relative motion between the writing pen and the writing surface. The smoothness of the writing pen is judged by detecting the coefficient of friction. However, this device has a complex structure and high cost.

[0003] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0004] In response to the problems mentioned in the background art, this utility model proposes a writing pen smoothness detection device that directly judges the smoothness performance of the writing pen based on time. It has a simple structure and low cost.

[0005] To achieve the above-mentioned objectives, the present invention employs the following technical solution: In some embodiments of this application, a writing stroke smoothness detection device is provided, comprising: Writing desk; A guide rail is provided on the writing table; A pen holder, which is slidably disposed on the guide rail, is configured to hold a writing pen; Two photoelectric sensors are spaced apart along the length of the guide rail. A timer configured to measure the time it takes for the pen holder to pass by the two photoelectric sensors sequentially.

[0006] In some embodiments of this application, a magnetic block is provided on the pen holder, and an electromagnet is provided on the writing table; The electromagnet is configured to be energized to attract the magnetic block, thereby stopping the pen holder; The electromagnet is also configured to be de-energized to release the magnetizing block, and the pen holder slides along the guide rail.

[0007] In some embodiments of this application, the angle of the writing table relative to the horizontal plane can be adjusted.

[0008] In some embodiments of this application, the angle adjustment range of the writing table relative to the horizontal plane is 0° to 30°.

[0009] In some embodiments of this application, the detection device includes a base located below the writing table, and two spaced-apart shaft mounting seats are provided on the base, with a first connecting shaft passing through the two shaft mounting seats; The bottom of the writing table is provided with two spaced-apart first bearing seats, and the first connecting shaft passes through the corresponding shaft mounting seat and the first bearing seat; The base is provided with a lifting drive assembly, which is configured to drive the writing table to rotate around the first connecting shaft to adjust the angle of the writing table relative to the horizontal plane.

[0010] In some embodiments of this application, the lifting drive assembly includes: A lead screw is mounted on the base, and a crank is provided at one end of the lead screw; Nut, the nut being mounted on the lead screw; A sliding plate is slidably connected to the base and fixedly connected to the nut. A second bearing seat is provided on the sliding plate, and a third bearing seat is provided at the bottom of the writing table. A connecting rod shaft is provided between the second bearing seat and the third bearing seat.

[0011] In some embodiments of this application, the writing table is provided with a glass surface.

[0012] In some embodiments of this application, the pen holder is made of aluminum alloy.

[0013] In some embodiments of this application, the writing table is provided with a plurality of spaced-apart guide rails.

[0014] In some embodiments of this application, multiple timers are provided, and each of the multiple timers corresponds to one of the multiple guide rails. The display screen of the timer is also corresponding to one of the guide rails.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are: The detection device of this application slides the pen holder onto a guide rail fixed to the writing table, and uses the movement of the pen holder along the guide rail to drive the writing pen to complete the writing action. This replaces the complex structure of the prior art, which fixes the pen holder and drives the writing table, reducing the design difficulty of the motion mechanism and the number of parts. At the same time, the detection method using a photoelectric sensor and a timer eliminates the need for additional precision components for friction coefficient detection, further simplifying the overall structure and effectively reducing the manufacturing cost and maintenance difficulty of the device.

[0016] This application employs a photoelectric sensor with a trigger error of less than 0.01 seconds, enabling precise capture of the time points traversed by the pen holder. Combined with a timer, this achieves high-precision measurement of the motion time T. Since time T is inversely proportional to the smoothness of the writing pen, this time parameter directly reflects the frictional state between the pen and the writing surface, avoiding errors caused by various factors in traditional friction coefficient testing and ensuring the accuracy and reliability of the test results. Furthermore, the device uses guide rails to limit the pen holder's movement trajectory, ensuring the stability and consistency of the pen's movement, providing a unified standard for batch testing, and improving the comparability of the test data.

[0017] The testing device described in this application is compatible with various types of writing pens, including ballpoint pens, gel pens, and direct-liquid pens. Its planar writing surface simulates real-world writing scenarios, resulting in test results that better reflect actual usage needs. The core components of the device include only the writing surface, guide rail, pen holder, photoelectric sensor, and timer. Its simple structure and operation process allow for testing without the need for specialized technicians, thus improving testing efficiency.

[0018] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural diagram of a writing stroke smoothness detection device according to some embodiments; Figure 2 This is yet another structural diagram of a writing stroke smoothness detection device according to some embodiments; Figure 3 A side view of a writing stroke smoothness detection device according to some embodiments; Figure 4 This is a structural diagram of a pen holder according to some embodiments.

[0021] Figure label: 100. Writing table; 110. First bearing housing; 120. Third bearing housing; 200. Guide rail; 300, Pen holder; 310, Main body; 320, Extension; 330, Magnetizing block; 340, Through hole; 350, Bearing; 360, Mounting hole; 410. First photoelectric sensor; 420. Second photoelectric sensor; 500, Timer; 600. Electromagnet; 700, Lifting drive assembly; 710, Lead screw; 720, Nut; 730, Sliding plate; 740, Crank handle; 750, Second bearing seat; 760, Second connecting shaft; 770, Connecting rod shaft; 780, Slider; 800, base; 810, shaft mounting seat; 820, first connecting shaft; 830, slide rail. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0028] In some embodiments of this application, a pen writing smoothness detection device is provided, with reference to... Figures 1 to 3 Writing pens can be ballpoint pens, gel pens, direct-liquid pens, etc.

[0029] The pen stroke smoothness detection device includes a writing table 100. The writing table 100 has a planar structure. The writing table 100 is used to simulate a writing surface.

[0030] The pen smoothness detection device also includes a guide rail 200, which is a long, rod-shaped structure. The guide rail 200 is fixedly mounted on the writing table 100. The guide rail 200 is located above the writing table 100 and is parallel to the writing table 100.

[0031] The writing smoothness detection device also includes a pen holder 300. Figure 4 This is a structural diagram of a pen holder 300. The pen holder 300 is configured to hold a writing pen. After the writing pen is mounted on the pen holder 300, the pen tip contacts the surface of the writing table 100. The pen holder 300 is slidably mounted on the guide rail 200. The movement of the pen holder 300 along the guide rail 200 causes the writing pen to write on the surface of the writing table 100.

[0032] The writing pen smoothness detection device also includes two photoelectric sensors, designated as the first photoelectric sensor 410 and the second photoelectric sensor 420. The first photoelectric sensor 410 and the second photoelectric sensor 420 are spaced apart along the length of the guide rail 200. The triggering error of the photoelectric sensors is <0.01 seconds.

[0033] The writing pen smoothness detection device also includes a timer 500, which is configured to measure the time T taken for the pen holder 300 to pass through two photoelectric sensors sequentially. For example, the pen holder 300 passes through the first photoelectric sensor 410 first and then the second photoelectric sensor 420. The timer 500 starts timing when the pen holder 300 passes through the first photoelectric sensor 410 and stops timing when the pen holder 300 passes through the second photoelectric sensor 420.

[0034] The smoothness of the writing pen is determined by the time T taken for the pen holder 300 to pass through two photoelectric sensors. The time T is inversely proportional to the smoothness of the writing pen.

[0035] The detection device of this application slides the pen holder 300 onto the guide rail 200 fixed to the writing table 100, and uses the movement of the pen holder 300 along the guide rail 200 to drive the writing pen to complete the writing action. This replaces the complex structure of the prior art that fixes the pen holder 300 and drives the writing table 100, reducing the design difficulty of the motion mechanism and the number of parts. At the same time, the detection method using a photoelectric sensor and a timer 500 eliminates the need for additional precision components for friction coefficient detection, further simplifying the overall structure and effectively reducing the manufacturing cost and maintenance difficulty of the device.

[0036] This application employs a photoelectric sensor with a trigger error of less than 0.01 seconds, which can accurately capture the time points traversed by the pen holder 300, and, in conjunction with the timer 500, achieve high-precision measurement of the motion time T. Since time T is inversely proportional to the smoothness of the writing pen, this time parameter directly reflects the frictional state between the writing pen and the writing surface 100, avoiding errors caused by various factors in traditional friction coefficient detection, and ensuring the accuracy and reliability of the test results. Furthermore, the device uses the guide rail 200 to limit the movement trajectory of the pen holder 300, ensuring the stability and consistency of the writing pen's movement, providing a unified standard for batch testing, and improving the comparability of the test data.

[0037] The testing device described in this application is compatible with various types of writing pens, including ballpoint pens, gel pens, and direct-liquid pens. The writing table 100 features a planar structure, simulating real-world writing scenarios, resulting in test results that better reflect actual usage needs. The core components of the device include only the writing table 100, guide rail 200, pen holder 300, photoelectric sensor, and timer 500. Its simple structure and operation process allow for testing without the need for specialized technicians, thus improving testing efficiency.

[0038] In some embodiments of this application, the writing table 100 is provided with a glass surface. For example, a 6H hardness glass surface is provided on the top surface of the writing table 100 to simulate a writing plane and reduce the influence of friction on the test results.

[0039] In some embodiments of this application, the writing table 100 is provided with a plurality of spaced guide rails 200, and each guide rail 200 is provided with a pen holder 300, thereby enabling simultaneous detection of multiple writing pens and improving detection efficiency.

[0040] In this embodiment, multiple guide rails 200 are arranged at intervals on the writing table 100, and each guide rail 200 is equipped with an independent pen holder 300. Multiple writing pens to be tested can be installed into the corresponding pen holders 300 at the same time, ensuring that the pen tip of each writing pen is stably in contact with the surface of the writing table 100, and realizing the parallel testing of multiple writing pens.

[0041] Multiple timers 500 are configured, each corresponding to a different guide rail 200, and the display screens of the timers 500 are also configured to correspond to the guide rails 200. When simultaneously testing the smoothness of multiple writing pens, the smoothness performance of the writing pens can be intuitively ranked by observing and comparing the times displayed on the multiple timers 500, making it easier for users to select the appropriate pen.

[0042] In batch testing scenarios, when multiple guide rails 200 on the writing table 100 simultaneously carry writing pens for parallel testing, the timers 500 corresponding to each guide rail 200 will start synchronously. As each writing pen moves along the guide rail 200 with its corresponding pen holder 300, the time difference between its passing through the photoelectric sensors at both ends of the guide rail 200 is accurately recorded by the dedicated timer 500 and displayed in real-time on the corresponding display screen. This design allows testing personnel to quickly rank the smoothness performance of multiple writing pens by directly observing the time values ​​on each display screen, without needing to record or organize data separately. Since time T is inversely proportional to smoothness performance, the longer the display time, the worse the smoothness performance of the writing pen; conversely, the shorter the display time, the better the smoothness performance.

[0043] In some embodiments of this application, the pen holder 300 is made of aluminum alloy to reduce weight and decrease sliding inertia error.

[0044] In some embodiments of this application, the pen holder 300 includes a main body 310, on which a through hole 340 is formed. A bearing 350 is disposed within the through hole 340, and a guide rail 200 passes through the bearing 350. The main body 310 has at least one mounting hole 360 ​​through which the writing pen passes. For example, a locking bolt is provided on the main body 310, extending into the mounting hole 360 ​​to clamp the writing pen.

[0045] In some embodiments of this application, reference is made to Figure 4 A magnetic block 330 is provided on the pen holder 300. (See reference...) Figure 1 An electromagnet 600 is installed on the writing table 100. The electromagnet 600 is configured to be energized to attract the magnetic block 330, causing the pen holder 300 to stop on the guide rail 200. The electromagnet 600 is also configured to be de-energized to release the magnetic block 330, allowing the pen holder 300 to slide along the guide rail 200. For example, the magnetic block 330 is a rigid part to ensure reliable attraction with the electromagnet 600. The attraction force is adjustable at 5N.

[0046] In some embodiments of this application, the pen holder 300 includes an extension 320, which is fixedly connected to the main body 310, and a magnetic block 330 is provided on the extension 320.

[0047] In some embodiments of this application, the angle of the writing table 100 relative to the horizontal plane can be adjusted to simulate various writing scenarios of the writing pen and reduce the deviation between test data and actual use.

[0048] In some embodiments of this application, the angle adjustment range of the writing table 100 relative to the horizontal plane is 0° to 30°.

[0049] In some embodiments of this application, the pen holder 300 and the writing table 100 form an angle of 45° to 90°.

[0050] In some embodiments of this application, the detection device includes a base 800 located below the writing table 100. Two spaced-apart shaft mounting seats 810 are provided on the base 800, and a first connecting shaft 820 passes through the two shaft mounting seats 810.

[0051] The bottom of the writing table 100 is provided with two spaced-apart first bearing seats 110, and the first connecting shaft 820 passes through the corresponding shaft mounting seat 810 and the first bearing seat 110. The first connecting shaft 820 is located at the first end of the writing table 100.

[0052] A lifting drive assembly 700 is provided on the base 800. The drive assembly is located at the second end of the writing table 100, with the first end opposite to the second end. The lifting drive assembly 700 is configured to drive the writing table 100 to rotate up and down around the first connecting shaft 820 to adjust the angle of the writing table 100 relative to the horizontal plane.

[0053] When the angle of the writing table 100 needs to be adjusted according to different writing scenarios, the operator can start the operation by controlling the lifting drive assembly 700 on the base 800. For example, the lifting drive assembly 700 can be a common drive structure such as an electric push rod or a screw jack. Since the first end of the writing table 100 is rotatably connected to the shaft mounting seat 810 of the base 800 through the first connecting shaft 820, when the lifting drive assembly 700 drives the second end of the writing table 100 to rise and fall, the writing table 100 will smoothly rotate up and down around the first connecting shaft 820, thereby adjusting the angle with the horizontal plane.

[0054] This structure provides a stable rotational support for the writing table 100, ensuring that the writing table 100 will not experience any deviation or wobbling during angle adjustment. This guarantees the stability of the contact between the writing pen and the writing table 100, preventing structural instability from affecting the accuracy of the test data. Secondly, the positioning of the lifting drive component 700 and the rotation fulcrum, located at opposite ends of the writing table 100, forms a reasonable lever arm structure. This allows for smooth lifting and lowering of the writing table 100 with a smaller driving force, reducing the power requirements of the drive component, minimizing structural wear, and extending the lifespan of the device.

[0055] In some embodiments of this application, reference is made to Figure 2 and Figure 3 The lifting drive assembly 700 includes a lead screw 710, which is mounted on the base 800. One end of the lead screw 710 is provided with a crank handle 740. The crank handle 740 is for manual operation by the user.

[0056] The lifting drive assembly 700 also includes a nut 720, which is mounted on the lead screw 710.

[0057] The lifting drive assembly 700 also includes a sliding plate 730, which is slidably connected to the base 800. For example, a slider 780 is provided at the bottom of the sliding plate 730, and a slide rail 830 is provided on the base 800, with the slider 780 slidably connected to the slide rail 830. The sliding plate 730 is fixedly connected to a nut 720. A second bearing seat 750 is provided on the sliding plate 730, and a third bearing seat 120 is provided at the bottom of the writing table 100. A connecting rod shaft 770 is provided between the second bearing seat 750 and the third bearing seat 120.

[0058] Furthermore, two second bearing seats 750 are spaced apart on the sliding plate 730, and a second connecting shaft 760 is provided between the two second bearing seats 750. Two third bearing seats 120 are spaced apart at the bottom of the writing table 100, which helps to further improve the stability of the lifting of the writing table 100.

[0059] When adjusting the angle of the writing surface 100, cranking the handle 740 causes the lead screw 710 to rotate, which in turn moves the nut 720 along the lead screw 710. The nut 720 then moves the sliding plate 730 towards or away from the first connecting shaft 820, thus adjusting the angle of the writing surface. For example, when the sliding plate 730 moves towards the first connecting shaft 820, the writing surface rotates upward, increasing the angle of the writing surface relative to the horizontal plane. Conversely, when the sliding plate 730 moves away from the first connecting shaft 820, the writing surface rotates downward, decreasing the angle of the writing surface relative to the horizontal plane.

[0060] This structure smoothly converts the operator's hand-cranked power into the angle adjustment action of the writing table 100. The transmission process is characterized by high rigidity and no slippage, ensuring the accuracy of angle adjustment. Specifically, the sliding connection between the sliding plate 730 and the base 800 provides guidance for linear motion, preventing the nut 720 from causing the sliding plate 730 to deviate. The hinged engagement between the second bearing seat 750, the third bearing seat 120, and the connecting rod shaft 770 solves the problem of trajectory matching between the linear motion of the sliding plate 730 and the rotational motion of the writing table 100, making the transmission smoother and reducing mechanical wear.

[0061] This manual adjustment mechanism has a low barrier to entry and can be operated without professional training to complete the angle adjustment. With the visual markings of the writing table 100 angle, such as the angle scale set on the base 800, the operator can quickly adjust the writing table 100 to the target angle, improving the efficiency of preparation before testing.

[0062] In some embodiments of this application, the detection process of the detection device is as follows: Install the writing pen to be tested into the pen holder 300. The pen tip contacts the writing table 100. At this time, the magnetic block 330 is attracted to the electromagnet 600, and the pen holder 300 is fixed in position on the guide rail 200. When the electromagnet 600 is de-energized, the magnetic block 330 disengages from the electromagnet 600, releasing the pen holder 300. The pen holder 300 slides along the guide rail 200, passing successively the first photoelectric sensor 410 and the second photoelectric sensor 420, which are spaced apart along the length of the guide rail 200. The pen holder 300 passes the first photoelectric sensor 410 first, and then the second photoelectric sensor 420. The writing pen writes on the writing table 100 as it moves with the pen holder 300. The timer 500 detects the time T that the pen holder 300 passes through the first photoelectric sensor 410 and the second photoelectric sensor 420, and judges the smoothness of the writing pen based on the time T.

[0063] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0064] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A pen writing smoothness detection device, characterized in that, Including: Writing desk; A guide rail is provided on the writing table; A pen holder, which is slidably disposed on the guide rail, is configured to hold a writing pen; Two photoelectric sensors are spaced apart along the length of the guide rail. A timer configured to measure the time it takes for the pen holder to pass by the two photoelectric sensors sequentially.

2. The writing pen smoothness detection device according to claim 1, characterized in that, The pen holder is equipped with a magnetic block, and the writing table is equipped with an electromagnet; The electromagnet is configured to be energized to attract the magnetic block, thereby stopping the pen holder; The electromagnet is also configured to be de-energized to release the magnetizing block, and the pen holder slides along the guide rail.

3. The writing pen smoothness detection device according to claim 1, characterized in that, The angle of the writing table relative to the horizontal plane is adjustable.

4. The writing pen smoothness detection device according to claim 3, characterized in that, The writing table's angle adjustment range relative to the horizontal plane is 0° to 30°.

5. The writing pen smoothness detection device according to claim 3, characterized in that, The detection device includes a base located below the writing table. Two spaced-apart shaft mounting seats are provided on the base, and a first connecting shaft passes through the two shaft mounting seats. The bottom of the writing table is provided with two spaced-apart first bearing seats, and the first connecting shaft passes through the corresponding shaft mounting seat and the first bearing seat; The base is provided with a lifting drive assembly, which is configured to drive the writing table to rotate around the first connecting shaft to adjust the angle of the writing table relative to the horizontal plane.

6. The writing pen smoothness detection device according to claim 5, characterized in that, The lifting drive assembly includes: A lead screw, which is mounted on the base, has a crank handle at one end; Nut, the nut being mounted on the lead screw; A sliding plate is slidably connected to the base and fixedly connected to the nut. A second bearing seat is provided on the sliding plate, and a third bearing seat is provided at the bottom of the writing table. A connecting rod shaft is provided between the second bearing seat and the third bearing seat.

7. The writing pen smoothness detection device according to any one of claims 1 to 6, characterized in that, The writing table is equipped with a glass surface.

8. The writing pen smoothness detection device according to any one of claims 1 to 6, characterized in that, The pen holder is made of aluminum alloy.

9. The writing pen smoothness detection device according to any one of claims 1 to 6, characterized in that, The writing table is provided with multiple spaced guide rails.

10. The writing pen smoothness detection device according to claim 9, characterized in that, Multiple timers are provided, and each timer is configured to correspond one-to-one with a guide rail. The display screen of each timer is configured to correspond to a guide rail.

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