Fixing device for pen detection
By designing a multi-angle inclination and adjustment pen detection device, the problem that existing equipment cannot detect the smoothness and slippage of the pen is solved, and a comprehensive quality inspection of the pen is achieved, ensuring the accuracy and consistency of the inspection results.
Patent Information
- Application Number
- CN202420771607.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-15
AI Technical Summary
Existing pen detection equipment cannot effectively detect the smoothness of the pen, cannot quantify the writing smoothness of the pen, and cannot distinguish the differences in the quality of the pen, especially due to the multi-angle and multi-contact points problems caused by the curved structure of the pen tip.
A fixed device for pen detection is designed, including a base piece, a linear drive mechanism, a horizontal slide, a hinged connection and a pen mount. It can tilt the pen at multiple angles, simulate the user's writing movements, and pass through the linear lines set at multiple places. and angle scale adjustment to ensure the identity of the test conditions and equipped with a force sensor for comprehensive inspection.
It realizes all-round detection of the pen tip with multiple angles and multiple contact points, and can truly and effectively detect the writing smoothness of the pen, and ensure the accuracy and consistency of the test results through multi-directional displacement adjustment and angle compensation.
Smart Images
Figure CN222279561U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pen detection equipment, in particular to a fixing device for pen detection. Background Art
[0002] A fountain 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 at present.
[0003] In order to detect the smoothness of fountain pen writing, pen manufacturers need to conduct corresponding tests on the pens they produce. At present, the method for testing the smoothness of pens is to fix the pen to be tested, and then make it draw a line on the test paper. The sensor detects the reaction force of the pen on the fixing device during the drawing process, which reflects the size and fluctuation of the friction between the pen tip and the paper.
[0004] However, this type of equipment is used to detect gel pens and ballpoint pens. Gel pens and ballpoint pens write by rolling the steel ball at the tip of the pen to bring out the ink. In all directions, the steel ball and the paper are in rolling contact. For a fountain pen, the tip of the pen is a downward convex arc surface. When writing, the tip of the pen and the paper are in friction contact. In addition, the contact point between the tip of the fountain pen and the paper is different when writing with different writing habits and writing strokes. Therefore, the current equipment can only detect the friction characteristics of a single point and cannot perform comprehensive inspection of the fountain pen.
[0005] Therefore, the current method for testing the smoothness of a fountain pen is to have qualified personnel write the word "8" and feel the feel of each stroke in the process of writing the word "8", and record or judge the quality of each part of the writing iridium grain of the fountain pen. This testing method cannot quantify the test results of the smoothness of the fountain pen, cannot objectively reflect the writing smoothness of the fountain pen, and cannot effectively distinguish the differences in the quality of the fountain pen. Summary of the invention
[0006] Aiming at the problem that current pen detection equipment cannot effectively detect pens, the utility model provides a pen detection fixing device which can be adapted to the pen tip structure.
[0007] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a fixing device for pen detection, including a base member, a first linear drive mechanism along a first direction is provided on the base member, a first horizontal slide is installed on the moving part of the first linear drive mechanism, a second horizontal slide is installed on the first horizontal slide through a second linear drive mechanism, the second linear drive mechanism is along the second direction, the first direction and the second direction are both horizontal and perpendicular to each other; a fixed seat is provided on the second horizontal slide, an intermediate connecting member is hingedly installed on the fixed seat, and a pen mounting seat is hingedly installed on the intermediate connecting member; one of the hinge axis between the fixed seat and the intermediate connecting member and the hinge axis between the intermediate connecting member and the pen mounting seat is along the first direction, and the other is along the second direction.
[0008] After the pen is installed, the device can tilt the pen body at two angles to simulate the user's writing action, so that different points on the arc surface of the pen tip contact the test paper, and can perform all-round detection of the pen tip at multiple angles and multiple contact points; at the same time, a slide seat is arranged in the corresponding direction, which can adjust the position of the pen tip for a second time according to the change in the position of the pen tip after the pen body is tilted, thereby ensuring the consistency of the test conditions.
[0009] Preferably, it further comprises a vertical slide and a lifting drive mechanism: the lifting drive mechanism is mounted on the first-level horizontal slide, the vertical slide is mounted on the lifting part of the lifting drive mechanism, and the second linear drive mechanism is mounted on the vertical slide; or, the lifting drive mechanism is mounted on the second-level horizontal slide, the vertical slide is mounted on the lifting part of the lifting drive mechanism, and the fixed seat is mounted on the vertical slide. The vertical slide is further provided to adjust the height position of the pen mounting seat to expand the adjustment range.
[0010] Preferably, a first angle scale and / or a first angle limit mechanism is provided between the fixing seat and the intermediate connecting member; a second angle scale and / or a second angle limit mechanism is provided between the intermediate connecting member and the pen mounting seat. The angle scale can intuitively determine the exact angle of the pen at one or two angles, which is convenient for accurately controlling the test conditions; the angle limit mechanism is used to set the commonly used test angle.
[0011] Preferably, a first linear distance scale is provided on one of the base member and the first-level horizontal slide, and a first displacement pointer is provided on the other, the first displacement pointer points to the scale in the first linear distance scale; a second linear distance scale is provided on one of the first-level horizontal slide and the second-level horizontal slide, and a second displacement pointer is provided on the other, the second displacement pointer points to the scale in the second linear distance scale. The position of the pen tip after the pen body is tilted can be accurately controlled.
[0012] Preferably, the pen mounting seat is provided with a through hole, in which a linear bearing is fixedly mounted; and further comprises a pen fixing fixture, the outer surface of which is cylindrical, and the pen fixing fixture can be slidably inserted into the inner hole of the linear bearing. A sliding pair is formed between the linear bearing and the pen fixing fixture, and the weight of the pen is increased by the fixture, so that the pen can keep pressing the test paper.
[0013] Preferably, the upper surface of the pen mounting seat is provided with angle scales along the circumference of the through hole, and the outer circumferential surface of the pen fixing tool is provided with engraved lines along the circumference. The pen fixing tool can be rotated to further increase the freedom of pen adjustment.
[0014] Preferably, the first angle scale includes an angle dial, which is arranged on a fixed seat, with the angle dial centered on a hinge axis between the fixed seat and an intermediate connecting member, an angle pointer is provided on the intermediate connecting member, and the angle pointer points to the scale in the angle dial; the fixed seat and the intermediate connecting member are hinged by bolts.
[0015] Preferably, the first angle limiting mechanism comprises an upper limit plate and a lower limit plate mounted on a fixed seat, the upper limit plate being horizontally arranged and being able to abut against the upper surface of the intermediate connecting member, the lower limit plate being inclined and extending downward in a direction away from the fixed seat, and the lower limit plate being able to abut against the lower surface of the intermediate connecting member.
[0016] Preferably, the first linear drive mechanism and the second linear drive mechanism both adopt a screw mechanism.
[0017] Preferably, a force sensor is provided between the intermediate connecting member and the pen mounting seat.
[0018] It can be seen from the above technical scheme that the advantages of the utility model are that, according to the special pen tip shape and the characteristics of friction writing, the device can make the pen body have tilt angles in different directions, simulate the real writing state, and test the different paper contact points of the pen tip under different strokes, so as to truly and effectively detect the writing smoothness of the pen; cooperate with the displacement adjustment in three directions to compensate for the position change of the pen tip after the pen body is tilted, so as to ensure the consistency of the test conditions; through the straight line and angle scales set in multiple places, the test conditions can be flexibly and accurately set to achieve comprehensive detection of the pen. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 It is a front view schematic diagram of the first embodiment of the utility model.
[0021] Figure 2 It is a top view schematic diagram of the first embodiment of the utility model.
[0022] Figure 3 It is a front view schematic diagram of the second embodiment of the utility model.
[0023] Figure 4 It is a schematic diagram of the structure of the angle dial in the first and second embodiments of the present invention.
[0024] Description of main reference numerals
[0025] 1. Basic parts, 2. First linear drive mechanism, 3. First-level horizontal slide, 4. Second-level horizontal slide, 5. Fixed seat, 6. Intermediate connecting part, 7. Pen mounting seat, 8. Vertical slide, 9. Lifting drive mechanism, 10. Second linear drive mechanism, 11. Linear bearing, 12. Pen fixing tooling, 13. Angle dial, 14. Angle pointer, 15. Upper limit plate, 16. Lower limit plate. DETAILED DESCRIPTION
[0026] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, 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.
[0027] For ease of description, we define Figure 1 In the paper, the left-right direction is the first direction, and the direction perpendicular to the paper surface is the second direction (i.e. Figure 2 The first and second directions are two directions perpendicular to each other in the horizontal plane under the natural reference system. Figure 1 The up and down direction in is the vertical direction.
[0028] Embodiment 1
[0029] like Figure 1 , 2As shown, a fixing device for pen detection includes a base member 1, which can be a table of a complete test device or an independent base of the device. The base member 1 is provided with a first linear drive mechanism 2 along a first direction. In this embodiment, the first linear drive mechanism 2 adopts a screw mechanism, which is a first screw mechanism. The screw body of the first screw mechanism is installed on the base member 1. A primary horizontal slide 3 is fixedly installed on the nut seat of the first screw mechanism. At the same time, for the convenience of adjustment, a hand wheel is installed at one end of the first screw mechanism. A second linear drive mechanism 10 along a second direction is installed on the primary horizontal slide 3. In this embodiment, the second linear drive mechanism 10 is a second screw mechanism. The screw body of the second screw mechanism is installed on the right side elevation of the primary horizontal slide 3. A secondary horizontal slide 4 is installed on the nut seat of the second screw mechanism. The left side of the secondary horizontal slide 4 is connected to the nut seat.
[0030] A fixed seat 5 is provided on the right side surface of the secondary horizontal slide 4, and an intermediate connecting member 6 is hingedly installed on the fixed seat 5. The fixed seat 5 is a U-shaped structure, and the left end of the intermediate connecting member 6 is hinged between the two ends of the U shape. The fixed seat 5 and the intermediate connecting member 6 are hinged by a first pair of locking bolts, and the axial direction of the first pair of locking bolts is in the second direction, and the angle between the two can be fixed by tightening the bolts; a pen mounting seat 7 is hingedly installed on the right end of the intermediate connecting member 6 on one side in the second straight line direction, and the pen mounting seat 7 and the intermediate connecting member 6 are hinged by a second pair of locking bolts, and the bolts are provided with a hand-tightening head, and the angle between the pen mounting seat 7 and the intermediate connecting member 6 can be locked by tightening the bolts, and the axial direction of the second pair of locking bolts is along the first direction. A through hole is provided in the pen mount 3, in which a linear bearing 11 is fixedly installed; it also includes a pen fixing tool 12, the outer surface of which is cylindrical, and the pen fixing tool 12 can be slidably inserted into the inner hole of the linear bearing 11, the upper surface of the pen mount 3 is provided with angle scales along the circumference of the through hole, and the outer peripheral surface of the pen fixing tool is provided with engraved lines along the circumference, and a force sensor is provided between the intermediate connecting member and the pen mount. Specifically, a hinge seat for installing the pen mount 7 can be provided on the intermediate connecting member 6, and one side of the hinge seat facing the intermediate connecting member 6 is processed into a step shape, and the convex surface of the step shape is fixedly connected to the intermediate connecting member 6, and the force sensor is provided between the concave surface of the step and the intermediate connecting member 6 to detect the pressure generated by the slight deformation of the step structure under writing resistance.
[0031] A first angle scale and a first angle limiting mechanism are provided between the fixing seat 5 and the intermediate connecting member 6:
[0032] like Figure 4As shown, the first angle scale includes an angle dial 13, which is arranged on the fixed seat 5, and the scale center of the angle dial is centered on the hinge axis between the fixed seat 5 and the intermediate connecting member 6. The intermediate connecting member 6 is provided with an angle pointer 14. Specifically, a plate body is arranged on the upper surface of the intermediate connecting member, and the plate body extends toward the direction of the fixed seat 5 to form an angle pointer. The angle pointer 14 faces the scale in the angle dial 13;
[0033] The first angle limiting mechanism includes an upper limit plate 15 and a lower limit plate 16 installed on the fixed seat 5, the upper limit plate 15 is horizontally arranged and can be abutted against the upper surface of the intermediate connecting member, and the lower limit plate 16 extends downwardly in an inclined direction away from the fixed seat 5, and the lower limit plate 16 can be abutted against the lower surface of the intermediate connecting member.
[0034] Similarly, a second angle scale and / or a second angle limit mechanism may be provided between the intermediate connecting member 6 and the pen mount 7, and may adopt a structure that is the same as or different from the first angle scale and the first angle limit mechanism. For different structures, for example, the second angle limit mechanism may mill a plane or a concave surface at a specific angle position on the periphery of the hinge shaft part, and a clamping screw may be provided on the intermediate connecting member 6 or the pen mount 7. The end face of the clamping screw may press the plane or the concave surface to achieve angle fixation.
[0035] Furthermore, a first linear distance scale may be provided on one of the base member 1 and the first-level horizontal slide 3, and a first displacement pointer may be provided on the other one, and the first displacement pointer may point to the scale in the first linear distance scale; a second linear distance scale may be provided on one of the first-level horizontal slide 3 and the second-level horizontal slide 4, and a second displacement pointer may be provided on the other one, and the second displacement pointer may point to the scale in the second linear distance scale to accurately control the distance of position compensation.
[0036] Embodiment 2
[0037] On the basis of the first embodiment, this embodiment further adds a vertical position compensation function, that is, the fixing device provided in this embodiment further includes a vertical slide 8 and a lifting drive mechanism 9. Specifically, Figure 3 As shown, the lifting drive mechanism 9 is installed on the primary horizontal slide 3, the vertical slide 8 is installed on the lifting part of the lifting drive mechanism 9, and the second linear drive mechanism 10 is installed on the vertical slide 8. The lifting drive mechanism can adopt a screw mechanism.
[0038] Alternatively, the lifting drive mechanism 9 is installed on the secondary horizontal slide 4 , the vertical slide 8 is installed on the lifting part of the lifting drive mechanism 9 , and the fixed seat 5 is installed on the vertical slide 8 .
[0039] It should be noted that in the above two embodiments, the first and second linear drive mechanisms and the lifting drive mechanism are not limited to screws, and linear drive components such as chains and telescopic cylinders may also be used.
[0040] It can be seen from the above embodiments that the beneficial effect of the utility model lies in that the device can make the pen body have tilt angles in different directions according to the special pen tip shape and the characteristics of friction writing, simulate the real writing state, test the different paper contact points of the pen tip under different strokes, and can truly and effectively detect the writing smoothness of the pen; cooperate with the displacement adjustment in three directions to compensate for the position change of the pen tip after the pen body is tilted, so as to ensure the consistency of the test conditions; through the straight line and angle scales set in multiple places, the test conditions can be flexibly and accurately set to achieve comprehensive detection of the pen.
[0041] 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 will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A fixing device for pen detection, comprising a base member (1), characterized in that: The base member (1) is provided with a first linear drive mechanism (2) along a first direction, a first-level horizontal slide (3) is installed on the moving part of the first linear drive mechanism, a second-level horizontal slide (4) is installed on the first-level horizontal slide (3) via a second linear drive mechanism (10), the second linear drive mechanism (10) is along a second direction, and the first direction and the second direction are both horizontal and perpendicular to each other; A fixed seat (5) is provided on the secondary horizontal slide seat (4), an intermediate connecting member (6) is hingedly mounted on the fixed seat (5), and a fountain pen mounting seat (7) is hingedly mounted on the intermediate connecting member (6); One of the hinge axis between the fixing seat (5) and the intermediate connecting member (6) and the hinge axis between the intermediate connecting member (6) and the pen mounting seat (7) is along the first direction, and the other is along the second direction.
2. The pen detection fixture according to claim 1, characterized in that: It also includes a vertical slide (8) and a lifting drive mechanism (9): The lifting drive mechanism (9) is mounted on the primary horizontal slide (3), the vertical slide (8) is mounted on the lifting portion of the lifting drive mechanism (9), and the second linear drive mechanism (10) is mounted on the vertical slide (8); Alternatively, the lifting drive mechanism (9) is mounted on a secondary horizontal slide (4), the vertical slide (8) is mounted on a lifting portion of the lifting drive mechanism (9), and the fixed seat (5) is mounted on the vertical slide (8).
3. The pen detection fixture according to claim 1, characterized in that: A first angle scale and / or a first angle limiting mechanism is provided between the fixing seat (5) and the intermediate connecting member (6); A second angle scale and / or a second angle limiting mechanism is provided between the intermediate connecting member (6) and the pen mounting seat (7).
4. The pen detection fixture according to claim 1, characterized in that: A first linear distance scale is provided on one of the base member (1) and the first-level horizontal slide seat (3), and a first displacement pointer is provided on the other, the first displacement pointer pointing to a scale in the first linear distance scale; A second linear distance scale is provided on one of the primary horizontal slide (3) and the secondary horizontal slide (4), and a second displacement pointer is provided on the other, the second displacement pointer pointing to the scale in the second linear distance scale.
5. The pen detection fixture according to claim 1, characterized in that: The pen mounting seat (7) is provided with a through hole in which a linear bearing (11) is fixedly mounted. The pen mounting seat (7) also includes a pen fixing fixture (12), the outer surface of the pen fixing fixture (12) being cylindrical, and the pen fixing fixture (12) being able to be slidably inserted into the inner hole of the linear bearing (11).
6. The pen detection fixture according to claim 5, characterized in that: The upper surface of the pen mounting seat (7) is provided with angle scales along the circumference of the through hole, and the outer circumferential surface of the pen fixing tool is provided with engraved lines along the circumference.
7. The pen detection fixture according to claim 3, characterized in that: The first angle scale comprises an angle dial (13), the angle dial (13) being arranged on a fixing seat (5), the angle dial taking the hinge axis between the fixing seat (5) and the intermediate connecting member (6) as the center, an angle pointer (14) being arranged on the intermediate connecting member (6), the angle pointer (14) pointing toward the scale in the angle dial (13); the fixing seat (5) and the intermediate connecting member (6) being hinged by bolts.
8. The pen detection fixture according to claim 3, characterized in that: The first angle limiting mechanism comprises an upper limit plate (15) and a lower limit plate (16) mounted on the fixing seat (5); the upper limit plate (15) is arranged horizontally and can abut against the upper surface of the intermediate connecting member; the lower limit plate (16) extends obliquely downward in a direction away from the fixing seat (5); and the lower limit plate (16) can abut against the lower surface of the intermediate connecting member.
9. The pen detection fixture according to claim 1, characterized in that: The first linear drive mechanism and the second linear drive mechanism both adopt a lead screw mechanism.
10. The pen detection fixture according to claim 1, characterized in that: A force sensor is arranged between the intermediate connecting piece and the pen mounting seat.