Whiteboard pen ink supply device and whiteboard pen

Abstract

The utility model discloses a whiteboard pen ink supply device and a whiteboard pen, and belongs to the technical field of stationery, the whiteboard pen ink supply device comprises a hollow ink storage core, an ink leading core and a pen point, the hollow ink storage core comprises a shell and an ink storage cotton core arranged in the shell, and the ink storage cotton core is internally provided with a hollow cavity; the ink guiding core comprises an ink guiding cotton core, the ink guiding cotton core is arranged in the cavity and is attached to the inner wall of the cavity, an ink injection cavity is formed in the portion, not provided with the ink guiding cotton core, in the cavity, and the ink injection cavity is located on the upper portion of the ink guiding cotton core; the pen point is arranged at the end, away from the ink injection cavity, of the ink guiding cotton core and attached to the ink guiding cotton core. Therefore, the structure of the whiteboard pen ink supply device is simplified, and the production and manufacturing cost is reduced. Besides, an ink injection cavity is formed in the whiteboard pen ink supply device, so that an ink injection needle can be conveniently positioned during ink injection, and the integrity of an ink storage cotton core structure can be kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to stationery technical field, especially a white board pen ink supply device and white board pen. BACKGROUND

[0002] White board pen is a kind of tool for writing on white board, similar to chalk of blackboard.This pen is used as ink, can write on smooth white board, and can be erased by white board eraser.The ink supply structure of existing white board pen includes pen head, roll package core, inner lining, water reservoir, water guide core, ink storage etc.Structure is sequentially arranged water reservoir, water reservoir, inner lining, roll package core along the length direction of pen holder, water guide core one end inserts roll package core, water guide core other end inserts ink storage, ink storage is used to store ink, the end of roll package core away from water guide core inserts pen head, water guide core is used to guide the ink in ink storage to roll package core, and roll package core again transports the ink stored by it to pen head, supplies writing.The ink supply structure of existing white board pen is relatively complex, and production cost is higher, so how to design a kind of white board pen ink supply device and white board pen of simple structure is the technical problem of technical personnel in the field to be solved urgently. SUMMARY

[0003] The utility model is directed to the defects and deficiencies in the prior art, provide a kind of white board pen ink supply device and white board pen, to simplify the structure of white board pen ink supply device, reduce production cost.

[0004] To achieve the above object, the technical scheme adopted by the utility model is:

[0005] The utility model provides a kind of white board pen ink supply device, including: hollow ink storage core, the hollow ink storage core includes shell and the ink storage cotton core placed in the shell, the inside of the ink storage cotton core is equipped with hollow cavity;Ink guide core, the ink guide core includes ink guide cotton core, the ink guide cotton core is placed in the inside of the cavity, and is matched with the inner wall of the cavity, the part of the cavity without being arranged the ink guide cotton core forms ink injection chamber, and the ink injection chamber is located in the upper portion of the ink guide cotton core;Pen head, the pen head is placed in the end of the ink guide cotton core away from the ink injection chamber, and is matched with the ink guide cotton core.

[0006] In an embodiment, the height of the ink injection chamber is not less than 1 / 3 of the height of the cavity.

[0007] In an embodiment, the axis of the cavity coincides with the axis of the hollow ink storage core.

[0008] In an embodiment, the end of the cavity of the hollow ink storage core away from the pen head is provided with end cover.

[0009] In an embodiment, the inner diameter of the cavity is d1, the outer diameter of the hollow ink storage core is d2, and d1=0.5d2±0.2mm.

[0010] In an embodiment, the ink storage wick and the ink lead wick are both made of glue-free special fiber.

[0011] In an embodiment, the density of the ink lead wick is greater than the density of the ink storage wick.

[0012] In an embodiment, the density of the ink lead wick is 2-3 times the density of the ink storage wick.

[0013] In an embodiment, the density of the ink storage wick is (0.12±0.02) g / cm 3 .

[0014] The utility model also provides a white board pen, including white board pen ink supply device of the utility model discloses white board pen ink supply device;Pen holder, the inside of pen holder is provided with white board pen ink supply device;Pen cap, the pen cap cover is established on the pen holder, is used for protecting the pen head.

[0015] The utility model discloses the following technical effects relative to prior art are achieved:

[0016] The white board pen ink supply device of the utility model includes hollow ink storage wick, ink lead wick and pen head, the inside of hollow ink storage wick is equipped with cavity, ink lead wick is placed in the cavity, the part of cavity is formed injection ink chamber without setting ink lead wick, and the pen head is installed in the one end of ink lead wick far from injection ink chamber. Through above-mentioned scheme, the structure of white board pen ink supply device is simplified, and production manufacturing cost is reduced. In addition, the injection ink chamber is formed in the inside of white board pen ink supply device, and it is convenient for injection ink needle to provide positioning when injection, and it is helpful to keep the integrity of ink storage wick structure. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying the creativity of labor.

[0018] Figure 1 It is the structure schematic view of white board pen ink supply device disclosed in a specific embodiment of the utility model.

[0019] Wherein, 1, injection ink chamber;2, shell;3, ink storage wick;4, cavity;5, ink lead wick;6, pen head;7, hollow ink storage wick. CONCRETE EMBODIMENT

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1 As shown, this utility model provides a whiteboard marker ink supply device, including: a hollow ink reservoir 7, an ink-drawing core, and a pen tip 6. The hollow ink reservoir 7 includes a shell 2 and an ink-retaining cotton core 3 placed inside the shell 2. The ink-retaining cotton core 3 has a hollow cavity 4 inside. The ink-drawing core includes an ink-drawing cotton core 5, which is placed inside the cavity 4 and fits against the inner wall of the cavity 4. The ink-drawing cotton core 5 does not occupy all parts of the cavity 4. The part of the cavity 4 where the ink-drawing cotton core 5 is not placed forms an ink filling cavity 1. In the writing state, the ink filling cavity 1 is located above the ink-drawing cotton core 5. The pen tip 6 is placed at the end of the ink-drawing cotton core 5 away from the ink filling cavity 1 and fits against the ink-drawing cotton core 5.

[0023] During ink filling, the ink filling needle on the machine is inserted into the ink filling chamber 1, and ink is delivered to the ink reservoir 3 through the ink filling chamber 1. The ink filling speed should not exceed the speed at which the ink seeps into the ink reservoir 3 to avoid ink overflow. After ink filling is completed, all the ink in the ink filling chamber 1 flows into and is stored in the ink reservoir 3. The ink in the ink reservoir 3 is then delivered to the pen tip 6 through the ink guide 5 for writing. The part of the ink guide 5 that contacts the ink reservoir 3 should allow air circulation to guide the ink in the ink reservoir 3 to the ink guide 5. When not writing, the ink in the ink reservoir 3, the ink guide 5, and the pen tip 6 is in a state of equilibrium. When writing, the pen tip 6 consumes the ink in the ink guide 5, thus breaking the equilibrium. The ink in the ink reservoir 3 continues to be delivered to the ink guide 5, thus completing a stable ink supply process.

[0024] In one embodiment, the height of cavity 4 is H, the height of ink filling cavity 1 is H2, and the height of ink-guiding cotton core 5 is H1. Then H2 is not less than 1 / 3H to avoid ink overflow in ink filling cavity 1 during ink filling.

[0025] In one embodiment, the axis of the cavity 4 coincides with the axis of the hollow ink reservoir 7, so that the ink can be stored evenly inside the hollow ink reservoir 7, and the ink in the hollow ink reservoir 7 can be evenly supplied to the ink-drawing cotton core 5, thereby improving the smoothness of writing.

[0026] In an embodiment, the cavity 4 of the hollow ink storage core 7 is provided with an end cover (not shown in the figure) away from one end of the pen head 6. After filling the ink, the end cover is closed to prevent the ink from leaking out.

[0027] The outer diameter and height H of the hollow ink storage core 7 are determined according to the required ink storage capacity of the whiteboard pen. In an embodiment, the inner diameter of the cavity 4 is d1, and the outer diameter of the hollow ink storage core 7 is d2, then d1 = 0.5d2 ± 0.2mm. The diameter of the ink guiding cotton core 5 is matched according to the required diameter of the pen head.

[0028] The material of the ink storage cotton core 3 and the ink guiding cotton core 5 also has an important influence on the writing quality of the whiteboard pen ink supply device. In an embodiment, the ink storage cotton core 3 and the ink guiding cotton core 5 are made of glue-free special fiber. The glue-free special fiber and the ink storage cotton core 3 and the ink guiding cotton core 5 made of glue-free special fiber are produced by the method disclosed in the patent with application number 201910018874.2 and authorization announcement number CN109501324B. The specific production method is as follows:

[0029] (1) The elastic core skin non-twisted composite filament is collected and bundled by the warping device to obtain the elastic core skin non-twisted composite filament bundle. The elastic core skin non-twisted composite filament is composed of a skin layer and a core layer. The skin layer is wrapped outside the core layer. The skin layer is composed of low-melting-point nylon macromolecular material, and the core layer is composed of nylon 66. The melting point of the skin layer is 150-210℃, and the melting point of the core layer is 250-260℃. The fineness of a single fiber of the elastic core skin non-twisted composite filament is 3-20D, and D is the weight of 9000 meters long. The skin layer component of the elastic core skin non-twisted composite filament accounts for 20%-40% of the total amount, and the core layer component accounts for 60%-80% of the total amount.

[0030] (2) The elastic core skin non-twisted composite filament bundle after warping and bundling is controlled to have a certain tension and enters the heat setting machine. The tension is 0.5-1N. The heat setting machine is provided with a heat setting box. The heat setting box is provided with a preheating zone, a heating melting zone, and a fixed forming zone. The temperature of the preheating zone is 80-150℃, the temperature of the heating melting zone is 180-250℃, and the temperature of the fixed forming zone is 180-250℃. A plurality of fiber bundle passage pipes are arranged in the preheating zone, the heating melting zone, and the fixed forming zone.

[0031] The elastic core sheath non-twisted composite filament bundle fiber sequentially passes through the preheating zone, the heating melting zone and the fixed forming zone, the elastic core sheath non-twisted composite filament bundle fiber is preheated and shrunk and puffed in the preheating zone, the elastic core sheath non-twisted composite filament bundle fiber passes through the heating melting zone to melt the elastic core sheath non-twisted composite filament skin of the bundle fiber, then enters the fixed forming zone, the skin is melted to bond the several elastic core sheath non-twisted composite filaments in the bundle fiber together, finally passes through the sizing die pipe to be sized, is pulled out by the traction machine, is cooled by the normal temperature air, the cooling length is 1-2m, and the glue-free fiber rod is prepared;

[0032] (3) The glue-free fiber rod is cut into the required length by the traction roller and the shearing machine, and the required glue-free fiber rod product is prepared.

[0033] The solid ink storage core in the prior art is made of loose single-component fiber filaments through physical extrusion processing by the outer layer of polypropylene film. The internal fibers cannot form a uniform microporous structure and cannot uniformly control the internal density. The ink leading cotton core 5 and the ink storage cotton core 3 are made of glue-free special fibers (double-component or multi-component structure) through physical heat bonding processing. The fiber filaments after processing and forming are bonded to each other to form a precise microporous structure. The micropore diameter is accurately controlled by adjusting the core density (i.e. the number of fibers in a unit volume constituting the ink storage cotton core 3 and the ink leading cotton core 5), fiber fineness, crimp degree and other parameters and processing and forming processes. This can not only adapt to various types of inks on the market (i.e. inks with different surface tension, viscosity, particle size, acidity and alkalinity), but also increase the ink storage capacity and improve the writing length.

[0034] In addition, by adjusting the core density, the core density of the ink leading cotton core 5 is greater than that of the ink storage cotton core 3. When ink is injected, the ink in the ink injection cavity 1 flows into the ink storage cotton core 3 and is guided to the ink leading cotton core 5 under the action of capillary phenomenon for writing. That is, the ink storage cotton core 3 has the functions of ink leading, ink storage and ink supply to the ink leading cotton core 5, so that the ink supply during whiteboard pen writing is uniform and stable, the writing fluency is improved, the ink in the ink storage cotton core 3 is prevented from settling due to gravity when the whiteboard pen is placed flat, causing writing stratification and poor ink guiding, and the ink in the ink storage cotton core 3 is prevented from being completely delivered to the pen tip 6, causing high ink residue in the ink storage cotton core 3 and ink leakage when the whiteboard pen is inverted or under negative pressure.

[0035] In an embodiment, the core density of the ink leading cotton core 5 is 2-3 times the core density of the ink storage cotton core 3, so as to increase the capillary phenomenon between the ink leading cotton core 5 and the ink storage cotton core 3. The core density of the ink storage cotton core 3 is (0.12±0.02) g / cm 3 .

[0036] The utility model also provides a white board pen, including above white board pen ink supply device, pen holder and cap, the inside of pen holder is equipped with white board pen ink supply device, the cap is established on the pen holder for protecting the pen head 6.

[0037] It should be noted that, for those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model, and any reference signs in the claims should not be regarded as limiting the involved claims.

Claims

1. A whiteboard marker inking device, characterized by, The application relates to a whiteboard pen ink supply device. The hollow ink storage core comprises a shell and an ink storage cotton core arranged in the shell, and the inside of the ink storage cotton core is provided with a hollow cavity; The ink guiding core comprises an ink guiding cotton core arranged in the inside of the cavity and matched with the inner wall of the cavity, and the part of the cavity without the ink guiding cotton core forms an ink injection cavity, and the ink injection cavity is located at the upper part of the ink guiding cotton core; The pen head is arranged at the end of the ink guiding cotton core far away from the ink injection cavity and matched with the ink guiding cotton core.

2. The whiteboard marker inking device of claim 1, wherein, The height of the ink injection cavity is not less than 1 / 3 of the height of the cavity.

3. The whiteboard marker inking device of claim 1, wherein, The axis of the cavity is coincident with the axis of the hollow ink storage core.

4. The whiteboard marker inking device of claim 1, wherein, The end of the cavity far away from the pen head is provided with an end cover.

5. The whiteboard marker inking device of claim 1, wherein, The inner diameter of the cavity is d1, the outer diameter of the hollow ink storage core is d2, and d1=0.5d2+ / -0.2mm.

6. The whiteboard marker inking device of any one of claims 1 to 5, wherein, The ink storage cotton core and the ink guiding cotton core are both made of glue-free special fibers.

7. The whiteboard marker inking device of claim 6, wherein, The density of the ink guiding cotton core is greater than that of the ink storage cotton core.

8. The whiteboard marker inking device of claim 7, wherein, The density of the ink guiding cotton core is 2-3 times that of the ink storage cotton core.

9. The whiteboard marker inking device of claim 8, wherein, The density of the ink storage cotton core is (0.12±0.02) g / cm 3 .

10. A whiteboard marker characterized by, The application further relates to a whiteboard pen ink supply device comprising any one of claims 1 to 9; The inside of the pen barrel is provided with the whiteboard pen ink supply device; The pen cap is arranged on the pen barrel and used for protecting the pen head.

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