CN205120391U - Lubricated degree automatic testing appearance is write to ballpoint - Google Patents
Lubricated degree automatic testing appearance is write to ballpoint Download PDFInfo
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- CN205120391U CN205120391U CN201520881348.6U CN201520881348U CN205120391U CN 205120391 U CN205120391 U CN 205120391U CN 201520881348 U CN201520881348 U CN 201520881348U CN 205120391 U CN205120391 U CN 205120391U
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Abstract
The utility model provides a lubricated degree automatic testing appearance is write to ballpoint, including fixture the chuck of centre gripping sample refill, write the fixture support of angularly adjustable, include the support sleeve, fixture set up in in the support sleeve, straight -line motion mechanism, with the fixture leg joint is including the drive the fixture support is made linear motion's linear motion servo motor and is made the motor at a slow speed of sample refill rotation, rotary platform for place the writing paper and make it make rotary motion, paper controlling means, set up in on the rotary platform for the planarization of paper is guaranteed to automatic stock form, control paper feed speed, experimental controlling means, with straight -line motion mechanism with rotary platform control connection for carry out test conditions's the settlement and the control of process of the test, and count and recorder, including spacing sensor sum counter for preset automatic rotation measurement's the number of turns, and reach hour recording measurement numerical value.
Description
Technical field
The utility model relates to automatic detection device, and particularly lubricity auto testing instrument write by a kind of ball pen.
Background technology
When utilizing ball pen to write, what people experienced is write comfortable feel degree, and what is called writes the concentrated expression that comfortable feel degree refers to fluency when writing and lubricity.Can writing angle, writing speed and under writing pressure, adopting and special write lining instrument in regulation for the fluency write, write the situation of stitching, amount size out of ink and fluctuation situation thereof judge its fluency write quantitatively by detecting; But, for a long time a kind of method that can quantitatively detect is not found all the time for the lubricity of writing, can only veteran be relied on, made by the method for comparison and judging qualitatively.
CN201819762U discloses a kind of instrument for testing frictional force of writing device, by the mode of rectilinear motion, can detect the friction force size of pen in rectilinear motion situation.To consider in the actual writing process of people and in line testing process, the mode of pure direct motion is less, is therefore necessary further improvement, its mode of motion is more fitted reality.
CN103424355A discloses a kind of lubricity tester, by drawing the mode of circular motion, the size detecting all kinds of pen friction force when writing that can be more accurate, and ways of writing when can simulate actual writing.But the mode of its test and record is comparatively original, needs manual paper feeding, very affect measuring speed and precision in operating process.
In general, existing lubricity tester ubiquity paper feed collection inconvenience, testing process can not robotization, and the technical matters that testing efficiency is low, urgently improves.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art part, significantly optimize lubricity tester has carried out, improving its paper feed collection mode, becoming automatic paper-changing from manually changing paper, ensure that the continuity of test, increase substantially the efficiency and precision measured.
The purpose of this utility model is achieved through the following technical solutions:
Lubricity auto testing instrument write by a kind of ball pen, comprising:
Clamping device, comprises the chuck of clamping sample pen core;
Write the clamping device support of adjustable angle, comprise bracket sleeve tube, described clamping device is arranged in described bracket sleeve tube;
Straight-line motion mechanism, is connected with described clamping device support, comprises the rectilinear motion servomotor driving described clamping device support moving linearly and the slow speed motor making the rotation of sample pen core;
Rotation platform, for placing writing paper and making it rotate;
Paper controlling apparatus, be arranged on described rotation platform, for automatic coil paper, control paper feeding speed and ensure the planarization of paper, wherein said paper controlling apparatus comprises paper feed volume, paper feed spool, collection volume, collection spool, writes paper, coil paper motor, pinch roller, pinch roller rotation axis and pinch roller motor;
Experimental control device, with described straight-line motion mechanism and described rotation platform control linkage, for the control of the setting and process of the test of carrying out test condition; And
Counting and pen recorder, comprise limit sensors sum counter, and for the number of turns of presetting automatic rotary measuring, and numerical value measured in record in time.
Write in an embodiment of lubricity auto testing instrument at ball pen of the present utility model, described clamping device comprises: sleeve, be arranged at the chuck in described sleeve and be arranged at the counterweight frame on described sleeve top, described counterweight frame comprises step and is arranged at the register pin below described step, and described clamping device is connected with described clamping device support by described register pin.
Write in another embodiment of lubricity auto testing instrument at ball pen of the present utility model, described clamping device support comprises carrier base, bracket sleeve tube, upper linear bearing, radial contact bearing, large timing belt pulley, axial thrust bearing, described bracket sleeve tube arranges breach, described upper linear bearing is arranged at the inside of described bracket sleeve tube, described radial contact bearing and described axial thrust bearing are all connected with described carrier base and are sleeved on outside described bracket sleeve tube, described large timing belt pulley to be arranged between described radial contact bearing and described axial thrust bearing and to be fixedly mounted on outside described bracket sleeve tube.
Write in another embodiment of lubricity auto testing instrument at ball pen of the present utility model, described straight-line motion mechanism comprises rectilinear motion servomotor, ball line slideway, mobile platform support, slow speed motor seat, slow speed motor, little timing belt pulley and synchronous belt; Described ball line slideway connects described rectilinear motion servomotor and described mobile platform support, described slow speed motor seat and described slow speed motor are arranged on described mobile platform support, described slow speed motor is connected with described little timing belt pulley, and described little timing belt pulley is connected with described large timing belt pulley by described synchronous belt.
Write in another embodiment of lubricity auto testing instrument at ball pen of the present utility model, described rotation platform comprises rotatable platform, rotation axis, shaft joint, rotary motion servomotor, and described rotatable platform is connected with described rotary motion servomotor with described shaft joint by described rotation axis.
Write in another embodiment of lubricity auto testing instrument at ball pen of the present utility model, described writing paper is laid on described rotation platform, and its one end is rolled up with described paper feed and is connected, and the other end to be rolled up with described collection through described coil paper motor and is connected.
Write in another embodiment of lubricity auto testing instrument at ball pen of the present utility model, described pinch roller, described pinch roller rotation axis and described pinch roller motor are arranged on the same side of described collection volume, for carrying out automatic carriage and fastening paper.
Write in another embodiment of lubricity auto testing instrument at ball pen of the present utility model, described collection spool is connected with described coil paper motor, and the paper after experiment is carried out automatic coil paper.
Write in another embodiment of lubricity auto testing instrument at ball pen of the present utility model, described counting and pen recorder also comprise an output device, described limit sensors is arranged on the side of described rotation platform, and link with described counter and described output device, when rotation platform rotates one week, described counter carries out counting and is recorded in described output device.
Ball pen of the present utility model is write lubricity auto testing instrument and is relative to the beneficial effect of prior art:
1, testing process full automation, serialization, the test duration of carrying out single sample shortened within 1 minute from original 5 minutes, saved the time of 80%;
2, owing to decreasing manual operation, the error that therefore manual operation causes also significantly reduces;
3, owing to introducing pinch roller and automatic rolling paper apparatus, the error of machine also reduces thereupon, therefore the Instrument Design of design of the present utility model far away higher than prior art in high efficiency, accuracy.
Accompanying drawing explanation
Fig. 1 is the structural representation writing lubricity auto testing instrument according to the ball pen of the utility model embodiment;
Fig. 2 is the structural representation of rotation platform according to the utility model embodiment and paper controlling apparatus;
Wherein, description of reference numerals is as follows:
1: rotation platform
2: paper controlling apparatus
3: counting and pen recorder
4: experimental control device
5: clamping device
6: clamping device support
7: straight-line motion mechanism
11: rotatable platform
12: rotation axis
13: shaft joint
14: rotary motion servomotor
21: paper feed is rolled up
22: paper feed spool
23: collection is rolled up
24: collection spool
25: write paper
26: coil paper motor
27: pinch roller
28: pinch roller rotation axis
29: pinch roller motor
31: counter
Embodiment
According to specific embodiment, the technical solution of the utility model is described further below.Protection domain of the present utility model is not limited to following examples, enumerates these examples and only limits the utility model never in any form for exemplary purpose.
A preferred implementation of the utility model lubricity auto testing instrument is described referring now to accompanying drawing.
As shown in Figure 1, ball pen is write lubricity auto testing instrument and is comprised: clamping device 5, comprises the chuck of clamping sample pen core; Write the clamping device support 6 of adjustable angle, comprise bracket sleeve tube, described clamping device is arranged in described bracket sleeve tube; Straight-line motion mechanism 7, is connected with described clamping device support, comprises the rectilinear motion servomotor driving described clamping device support moving linearly and the slow speed motor making the rotation of sample pen core; Rotation platform 1, for placing writing paper and making it rotate; Paper controlling apparatus 2, is arranged on described rotation platform, for automatic coil paper, controls paper feeding speed and ensures the planarization of paper; Experimental control device 4, with described straight-line motion mechanism and described rotation platform control linkage, for the control of the setting and process of the test of carrying out test condition; And count and pen recorder 3, comprise limit sensors sum counter, for the number of turns of presetting automatic rotary measuring, and numerical value measured in record in time.
Clamping device 5 is positioned in the bracket sleeve tube of clamping device support 6, comprises sleeve, chuck and counterweight frame, for clamping sample pen core, makes the nib of sample pen core and the plane contact of rotation platform.
Chuck is arranged in sleeve, counterweight erection is placed in the top of sleeve, and counterweight frame has a step, can place counterweight with the size of regulating writing pressure above step, there is a register pin below step, coordinate with fixing and holding mechanism with the breach of the bracket sleeve tube of clamping device support.
Clamping device support 6 comprises shell, carrier base, bracket sleeve tube, upper linear bearing, radial contact bearing, large timing belt pulley, axial thrust bearing, for placing clamping device.
Bracket sleeve tube is arranged breach and detent fit, upper linear bearing is arranged at the inside of bracket sleeve tube, to reduce the impact of side force, radial contact bearing and axial thrust bearing are all connected with carrier base and are sleeved on outside bracket sleeve tube, large timing belt pulley to be arranged between radial contact bearing and axial thrust bearing and to be fixedly mounted on outside bracket sleeve tube, and limit sensors is arranged at the bottom of carrier base.
Limit sensors comprises stiff end and free end, and stiff end and carrier base are connected and fixed, and free end is provided with bearing seat, is provided with lower linear bearing in bearing seat, and lower linear bearing comprises endoporus.When detecting, clamping device 5 is inserted through bracket sleeve tube from the top of bracket sleeve tube, then inserts the endoporus of lower linear bearing, makes the nib of sample pen core clamped by clamping device 5 and the plane contact of rotatable platform.
Bearing seat and lower linear bearing are used for the insertion of gripping device front end, as much as possible close to the plane of rotatable platform, the force-detecting position of pulling force sensor should be made as far as possible near the nib of sample pen core, write frictional force data really to obtain.The upper and lower two ends of clamping device all have linear bearing to support, and reduce the impact of side force.
Straight-line motion mechanism 7 comprises rectilinear motion servomotor, ball line slideway, mobile platform support, slow motor seat, slow motor, little timing belt pulley and synchronous belt.
Ball line slideway comprises retaining element and moving meter, retaining element is connected with rectilinear motion servomotor, moving meter is connected with mobile platform support, and mobile platform support can make infinite variable speed linear reciprocating motion along ball line slideway under the drive of rectilinear motion servomotor.
Mobile platform internal stent comprises slow speed motor seat and slow speed motor, and slow speed motor is connected with little timing belt pulley, and little timing belt pulley is connected with large timing belt pulley by synchronous belt.When slow speed motor rotates, large synchronous pulley rotation is driven by little timing belt pulley and synchronous belt, thus drive bracket sleeve tube to rotate, when in the bracket sleeve tube that clamping device 5 inserts clamping device support 6, register pin coordinates with the breach of bracket sleeve tube, make clamping device 5 synchronous axial system, be equivalent to sample pen core clamped in clamping device 5 around self axis rotation, to detect all angles of 360 ° of nib.Rotational velocity is normally constant, and by selecting the rotating speed of slow speed motor and the speed change of timing belt pulley to reach the rotating speed of needs, if desired adjusting rotary speed, also can arrange variator, regulate the rotating speed of slow speed motor on mobile platform support.
Mobile platform bracket outer has shell, one end of shell has coupling shaft and two pieces of back up pads extended out, threaded rod is fixed on shell through two pieces of back up pads, one end of threaded rod has handwheel, by control hand wheel, threaded rod is moved between two pieces of back up pads, have the fixed block of threaded hole through threaded rod, one end of fixed block has bolt.
The outside of clamping device support 6 has shell, and one end of shell arranges connecting hole and adjustment hole.
Coupling shaft is through connecting hole, and clamping device support 6 can rotate around coupling shaft.Bolt is through adjustment hole, and when clamping device support 6 is perpendicular to surface level, bolt is positioned at the bottom of adjustment hole.When rotating handwheel, threaded rod moves forward and backward, and drives fixed block and bolt to move, bolt is moved up in adjustment hole, thus drive clamping device support 6 is around coupling shaft rotation and horizontal by certain angle.
By regulating threaded rod to make clamping device support 6 rotate around coupling shaft, rotational angle is 0 ° ~ 30 °, and the plane being equivalent to sample pen core in clamping device 5 and rotatable platform can be done to write angular setting between 90 °-60 °.
Experimental control device 4 can comprise switch, A variator, B variator, programmable device.Switch is used for starting or cutting out instrument, A variator is for regulating the speed of the rectilinear motion servomotor in straight-line motion mechanism 7, B variator is for regulating the speed of rotary motion servomotor in rotation platform 1, and programmable device is for controlling the time point etc. of sequencing between various motion and starting, stopping.
Experimental control device 4 has touch control screen, and its mode of operation is that finger touch controls, and does not need external computer.
Experimental control device 4 is set with the control software design of specialty, can preset experiment condition, the beginning of Control release and stopping, and automatically shows as output device and record result, functional and professionally all exceedes former conputer controlled.
As shown in Figure 2, rotation platform 1 comprises rotatable platform 11, rotation axis 12, shaft joint 13 and rotary motion servomotor 14.
Rotatable platform 11 is connected with rotary motion servomotor 14 with shaft joint 13 by rotation axis 12, and writing paper is laid on rotatable platform 11, and rotatable platform 11 is the rotation of adjustable rotating speed.
Paper controlling apparatus 2 comprises: paper feed volume 21, paper feed spool 22, collection volume 23, collection spool 24, write paper 25, coil paper motor 26, pinch roller 27, pinch roller rotation axis 28 and pinch roller motor 29, and wherein collection volume 23 can carry out automatic or manual collection.
Writing paper 25 is laid on rotation platform 1, and its one end and paper feed are rolled up 21 and be connected, and the other end is rolled up 23 through coil paper motor 26 and collection and is connected.
Pinch roller 27, pinch roller rotation axis 28 and pinch roller motor 29 are arranged on the same side of collection volume 23, for realizing automatic paper feed, and can control the speed of paper feed, ensure the planarization of paper, reduce the measuring error because paper injustice causes.
Collection spool 24 is connected with coil paper motor 26, and the paper after experiment is carried out automatic coil paper.
Counting and pen recorder 3 also comprise an output device, limit sensors is arranged on the side of rotation platform, and link with counter 31 and output device, when rotation platform 1 rotates one week, counting and pen recorder will automatically be recorded in the measurement numerical value in this circle and be presented in output device, simultaneously zeros data start the record of a new circle.
When testing, the rotation number of turns of test can be preset, and after reaching predetermined amount, automatically stop experiment.
Lubricity auto testing instrument write by ball pen of the present utility model also can increase panalarm, when the situations such as rotating machinery, automatically paper feed break down, can notify user by modes such as light, sound equipment or notes.
Lubricity auto testing instrument write by ball pen of the present utility model can simulate the actual state of writing, and sample pen core namely can be made perpendicular to writing surface, also can be adjusted to writing surface to be 60 ° and to write angle; Can make sample pen core difference moving linearly or the circular motion around rotatable platform axle center while Pivot Point Center rotates, also can be that namely above-mentioned two kinds of compound motions simultaneously carried out that move draw helix.
Method that lubricity auto testing instrument carries out testing can comprise the steps: to utilize ball pen to write
A) sample pen core is put into clamping device, clamping device is fixed in clamping machine framework, and make the nib of sample pen core and the surface contact of rotation platform;
B) clamping device is regulated, the load of setting sample pen core;
C) regulate straight-line motion mechanism, what set sample pen core writes angle;
D) regulate paper controlling apparatus, setting paper feeding speed also ensures the planarization of paper;
E) regulate experimental control device, writing speed, the hatched manner of setting sample pen core, preset the line number of turns or line time;
F) starting characteristics test control device, drives straight-line motion mechanism to make sample pen core moving linearly and/or rotation platform that writing paper is rotated;
G) utilize counting and recording apparatus collecting data carry out software data process, and obtain test result.
To check sample pen core institute's scribe streets on writing paper, the requirement of normally writing must be reached, namely stitching can not break, concentration can not have significant change, test figure just can be accepted and believed, otherwise need again to test, even change sample pen core, because what obtain required for test is write lubricity data normally writing the ball pen under condition.
Consider that independent single test may be subject to the interference of accidentalia, this method needs the revision test of carrying out repeatedly, usually at 5-10 time, using mean value as final test figure.
Embodiment one
Sample adopts P670/0.5 nib, coupling BLACK-ES ink carries out friction force Experimental comparison, rotating diameter is 10cm, writing speed 4.5m/min, write angle 90 °, by utilizing ball pen of the present utility model write lubricity auto testing instrument (hereinafter referred to as new equipment) and utilize the lubricity auto testing instrument of prior art (hereinafter referred to as old device) to test respectively, test result is contrasted, as shown in table 1.
New and old device friction value contrast (unit: N) of table 1, pen core
| Sequence number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Average | The coefficient of variation |
| Old | 0.300 | 0.289 | 0.270 | 0.269 | 0.266 | 0.270 | 0.268 | 0.271 | 0.282 | 0.271 | 0.274 | 4％ |
| Newly | 0.292 | 0.291 | 0.291 | 0.288 | 0.286 | 0.285 | 0.284 | 0.285 | 0.283 | 0.282 | 0.287 | 1.3％ |
The time that wherein old device often carries out single sample cost is about 3 seconds, but manual paper feeding, adjustment paper, adjustment examination pen, the spended times such as zeros data, data record are about 20 seconds, always about 4 minutes consuming time, and the regulation time of new equipment only needs 1 time, total test is consuming time is about 50 seconds, and spended time is about original 20%.
Significantly reduce from the coefficient of variation of DATA REASONING in addition, illustrate that the data consistency of new equipment DATA REASONING is higher than old device, data discrete degree reduces, and the deviation brought because of other factors significantly reduces.
Embodiment two
Sample adopts MG640/0.5 nib, and do not pour into ink and carry out friction force Experimental comparison, rotating diameter is 10cm, writing speed 4.5m/min, writes angle 90 °, by the test result of new equipment and old device to test Comparative result, as shown in table 2.
Table 2, empty stroke of new and old device friction value contrast (unit: N)
| Sequence number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Average | The coefficient of variation |
| Old | 0.305 | 0.295 | 0.268 | 0.284 | 0.300 | 0.306 | 0.318 | 0.350 | 0.368 | 0.353 | 0.314 | 10.3％ |
| Newly | 0.312 | 0.312 | 0.308 | 0.306 | 0.304 | 0.303 | 0.300 | 0.298 | 0.300 | 0.298 | 0.304 | 1.7％ |
When not pouring into ink, the friction deviation that the film lubrication by nib itself carries out is comparatively large, and its reason is for having lacked ink as lubricating film, and its possibility by extraneous factor interference significantly increases.And after have employed new equipment, find that it is measured numerical value and is deteriorated still less.Illustrate that new equipment is at exclusive PCR, reduce error aspect and be much better than old device.
Those skilled in the art it should be noted that the embodiment described by the utility model is only exemplary, can make other replacements various, changes and improvements in scope of the present utility model.Thus, the utility model is not limited to above-mentioned embodiment, and is only defined by the claims.
Claims (9)
1. a lubricity auto testing instrument write by ball pen, it is characterized in that, comprising:
Clamping device, comprises the chuck of clamping sample pen core;
Write the clamping device support of adjustable angle, comprise bracket sleeve tube, described clamping device is arranged in described bracket sleeve tube;
Straight-line motion mechanism, is connected with described clamping device support, comprises the rectilinear motion servomotor driving described clamping device support moving linearly and the slow speed motor making the rotation of sample pen core;
Rotation platform, for placing writing paper and making it rotate;
Paper controlling apparatus, be arranged on described rotation platform, for automatic coil paper, control paper feeding speed and ensure the planarization of paper, wherein said paper controlling apparatus comprises paper feed volume, paper feed spool, collection volume, collection spool, writes paper, coil paper motor, pinch roller, pinch roller rotation axis and pinch roller motor;
Experimental control device, with described straight-line motion mechanism and described rotation platform control linkage, for the control of the setting and process of the test of carrying out test condition; And
Counting and pen recorder, comprise limit sensors sum counter, and for the number of turns of presetting automatic rotary measuring, and numerical value measured in record in time.
2. lubricity auto testing instrument write by ball pen according to claim 1, it is characterized in that, described clamping device comprises: sleeve, be arranged at the chuck in described sleeve and be arranged at the counterweight frame on described sleeve top, described counterweight frame comprises step and is arranged at the register pin below described step, and described clamping device is connected with described clamping device support by described register pin.
3. lubricity auto testing instrument write by ball pen according to claim 1, it is characterized in that, described clamping device support comprises carrier base, bracket sleeve tube, upper linear bearing, radial contact bearing, large timing belt pulley, axial thrust bearing, described bracket sleeve tube arranges breach, described upper linear bearing is arranged at the inside of described bracket sleeve tube, described radial contact bearing and described axial thrust bearing are all connected with described carrier base and are sleeved on outside described bracket sleeve tube, described large timing belt pulley to be arranged between described radial contact bearing and described axial thrust bearing and to be fixedly mounted on outside described bracket sleeve tube.
4. lubricity auto testing instrument write by ball pen according to claim 3, it is characterized in that, described straight-line motion mechanism comprises rectilinear motion servomotor, ball line slideway, mobile platform support, slow speed motor seat, slow speed motor, little timing belt pulley and synchronous belt; Described ball line slideway connects described rectilinear motion servomotor and described mobile platform support, described slow speed motor seat and described slow speed motor are arranged on described mobile platform support, described slow speed motor is connected with described little timing belt pulley, and described little timing belt pulley is connected with described large timing belt pulley by described synchronous belt.
5. lubricity auto testing instrument write by ball pen according to claim 1, it is characterized in that, described rotation platform comprises rotatable platform, rotation axis, shaft joint, rotary motion servomotor, and described rotatable platform is connected with described rotary motion servomotor with described shaft joint by described rotation axis.
6. lubricity auto testing instrument write by ball pen according to claim 1, it is characterized in that, described writing paper is laid on described rotation platform, and its one end is rolled up with described paper feed and is connected, and the other end to be rolled up with described collection through described coil paper motor and is connected.
7. lubricity auto testing instrument write by ball pen according to claim 6, it is characterized in that, described pinch roller, described pinch roller rotation axis and described pinch roller motor are arranged on the same side of described collection volume, for carrying out automatic carriage and fastening paper.
8. lubricity auto testing instrument write by ball pen according to claim 6, it is characterized in that, described collection spool is connected with described coil paper motor, and the paper after experiment is carried out automatic coil paper.
9. lubricity auto testing instrument write by ball pen according to claim 1, it is characterized in that, described counting and pen recorder also comprise an output device, described limit sensors is arranged on the side of described rotation platform, and link with described counter and described output device, when rotation platform rotates one week, described counter carries out counting and is recorded in described output device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520881348.6U CN205120391U (en) | 2015-11-06 | 2015-11-06 | Lubricated degree automatic testing appearance is write to ballpoint |
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| CN201520881348.6U CN205120391U (en) | 2015-11-06 | 2015-11-06 | Lubricated degree automatic testing appearance is write to ballpoint |
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| CN205120391U true CN205120391U (en) | 2016-03-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111089739A (en) * | 2018-10-23 | 2020-05-01 | 深圳市达韵机电科技有限公司 | Ground test method and equipment for writing function of space pen |
| CN111766093A (en) * | 2020-08-31 | 2020-10-13 | 潍坊美好生活环保科技有限公司 | Neutral pen writing lubricating degree testing machine |
| CN117968751A (en) * | 2024-04-02 | 2024-05-03 | 青岛亚坦文具有限公司 | Pencil lead marking detection device |
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2015
- 2015-11-06 CN CN201520881348.6U patent/CN205120391U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111089739A (en) * | 2018-10-23 | 2020-05-01 | 深圳市达韵机电科技有限公司 | Ground test method and equipment for writing function of space pen |
| CN111766093A (en) * | 2020-08-31 | 2020-10-13 | 潍坊美好生活环保科技有限公司 | Neutral pen writing lubricating degree testing machine |
| CN111766093B (en) * | 2020-08-31 | 2020-11-24 | 温州弘铭仪器有限公司 | Neutral pen writing lubricating degree testing machine |
| CN117968751A (en) * | 2024-04-02 | 2024-05-03 | 青岛亚坦文具有限公司 | Pencil lead marking detection device |
| CN117968751B (en) * | 2024-04-02 | 2024-05-31 | 青岛亚坦文具有限公司 | Pencil lead marking detection device |
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