Marker pen with combined stirrer

Abstract

The utility model relates to the technical field of stationery, in particular to a mark pen with a combined stirrer. An ink bin for storing ink is arranged in the mark pen, a combined stirrer is arranged in the ink bin, and the combined stirrer comprises a free stirrer and an elastic stirrer; the density of the free stirrer is larger than that of the titanium dioxide, and the free stirrer is located in the ink bin and can freely shake in the ink bin; and the elastic stirrer is at least arranged at one end part of the ink bin. The stirring effect is enhanced, the uniformity of ink is ensured, the performance of the mark pen is improved, the service life of the mark pen is prolonged, and the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to stationery technical field, especially a marker with combined stirrer. BACKGROUND

[0002] The marker includes straight liquid type acrylic marker and valve type acrylic marker, and the straight liquid type acrylic marker is taken as an example, which is widely used as a new writing and drawing pen, and is widely used due to wide application, strong hiding power, writing and drawing on various media, convenient carrying, cleaning and convenience, flexibility, and is more and more welcomed by consumers.

[0003] The working principle of the straight liquid type acrylic marker is to directly deliver ink to the writing or drawing surface through the pen tip to realize smooth lines and rich color expression. The ink formula of the straight liquid type acrylic marker contains titanium white powder, and the density is relatively high (greater than 4.0 g / cm3). Since the density of titanium white powder is greater than that of other components in the ink, the titanium white powder is easy to deposit to the bottom in the ink during long-term storage. When the pen head is downward, the titanium white powder in the ink deposits most seriously due to the action of gravity, and the thickness of the deposited layer is the thickest. When the pen head is stored horizontally, the thickness of the deposited layer is smaller due to the larger dispersion area. This deposition phenomenon intensifies with time, resulting in that the titanium white powder content in the initial ink color is low when the user creates a drawing, thereby affecting the hiding power. To solve this problem, a spherical stirrer is usually placed in the marker in the prior art, as shown in Figure 1 The material density of the spherical stirrer is usually greater than 4 g / cm3, and the stirrer is moved by shaking the pen barrel to stir the ink to a uniform state.

[0004] When the product is stored for a long time, the titanium white powder in the ink first forms a soft deposit, and the user moves the spherical stirrer in the pen barrel by shaking the product to stir the ink to a uniform state. However, when the product is stored for a long time during storage and sales, the deposition of titanium white powder becomes more and more serious, and even forms a hard deposit layer, especially when stored vertically, at this time the deposit will cover the stirrer, and it is difficult to stir the ink to a uniform state by the stirrer, which limits the performance and service life of the marker and affects the user experience. UTILITY MODEL CONTENT

[0005] In view of the deficiencies in the prior art, the utility model embodiment aims to provide a marker with a combined stirrer, which can effectively stir the ink when hard deposition occurs during vertical storage, ensure uniform mixing of the ink, restore the hiding power, thereby improving the performance and service life of the marker and improving the user experience.

[0006] To achieve the above-mentioned purpose, the utility model embodiment provides the following technical scheme:

[0007] A marker with a combined stirrer, the marker containing titanium white powder which is easy to precipitate in the ink formula of the marker, the marker having an ink tank for storing ink, the ink tank being provided with a combined stirrer, the combined stirrer comprising a free stirrer and an elastic stirrer; the free stirrer having a density greater than that of the titanium white powder, the free stirrer being located in the ink tank and being able to freely swing in the ink tank; the elastic stirrer being installed at least at one end of the ink tank.

[0008] Optionally, the free stirrer is a sphere or a cylinder.

[0009] Optionally, the elastic stirrer is made of a spring wire.

[0010] Optionally, the elastic stirrer is a cylindrical spring.

[0011] Optionally, the elastic stirrer is a conical spring.

[0012] Optionally, the elastic stirrer has one, and the elastic stirrer is installed at an end of the ink tank away from the marker tip.

[0013] Optionally, the elastic stirrer has two, and the two elastic stirrers are respectively installed at two ends of the ink tank.

[0014] Optionally, the ink tank is conical, and the inner diameter of the ink tank at the end close to the tip is greater than that at the end away from the tip.

[0015] Optionally, the marker has a writing assembly at the end, and the writing assembly comprises a tip and a relay core.

[0016] Optionally, the marker further comprises an upper cap assembly, and the upper cap assembly is installed on the writing assembly.

[0017] The one or more technical solutions provided in the embodiments of the utility model have at least the following technical effects or advantages:

[0018] This marker's combined stirrer consists of two parts: a free stirrer and a flexible stirrer. Its purpose is to re-homogenize the ink and restore its covering power through agitation. The free stirrer has a higher density than titanium dioxide, ensuring it can move freely within the ink reservoir and effectively stir up any precipitated titanium dioxide from the bottom of the ink, thus restoring ink homogeneity. The flexible stirrer, installed at least at one end of the ink reservoir, provides support and assists in agitation. Specifically, when stored vertically, the flexible stirrer supports the free stirrer, preventing it from being covered by hard deposits. Furthermore, through its interaction with the free stirrer, the flexible stirrer enhances the agitation effect, especially when hard deposits form. The flexible stirrer breaks up the hard deposits at the bottom and accelerates the stirrer's movement through elastic reaction force, further enhancing the agitation effect and ensuring ink homogeneity.

[0019] Additional advantages of this invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. Furthermore, the spacing or dimensions between components are exaggerated to show their positions; the schematic diagrams are for illustrative purposes only.

[0021] Figure 1 This is a schematic diagram of a marker pen using existing technology;

[0022] Figure 2 This is a schematic diagram of the elastic stirrer provided in this embodiment of the utility model, which is a cylindrical spring;

[0023] Figure 3 This is a schematic diagram of the elastic stirrer provided in this embodiment of the utility model, which is a conical spring;

[0024] Figure 4 This is a schematic diagram of the elastic stirrer provided in this embodiment of the utility model, which consists of two cylindrical springs;

[0025] Figure 5 This is a schematic diagram of the elastic stirrer provided in this embodiment of the utility model, which consists of two conical springs;

[0026] In the image: 1. Flexible stirrer; 2. Free stirrer; 3. Ink reservoir; 4. Writing assembly; 5. Cap assembly; Detailed Implementation

[0027] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. In addition, it should also be understood that the terms "comprise" and / or "include" as used in this specification specify the presence of stated features, steps, operations, devices, components, and / or combinations thereof.

[0028] Term explanation:

[0029] The formula of the acrylic ink mainly includes the following:

[0030] Titanium dioxide (TiO2), has a variety of important roles: ① Provide white: titanium dioxide is one of the most commonly used white pigments, which can provide pure and bright white for ink. This is very important for applications that require white markings or high contrast effects. ②Hiding power: titanium dioxide has very high hiding power, which means it can effectively cover the underlying color, making the ink clearly visible on various colored surfaces. This feature allows acrylic markers to provide good coverage when drawing, especially on dark backgrounds. ③Increase opacity: titanium dioxide increases the opacity of the ink, making it more dense and opaque. This helps ensure that the ink does not appear too transparent when used, thereby enhancing the visual effect.

[0031] Acrylate resin: This is the base material of the ink, which is a synthetic polymer that can provide good adhesion and durability. Acrylate resin is fast-drying and has good water resistance once dry, which makes the works drawn with acrylic markers less likely to be damaged by water after drying.

[0032] Pigments: Provide color, making the ink exhibit a variety of colors. These pigments are usually highly stable to ensure that the color does not fade or change over time.

[0033] Solvent: used to dissolve acrylate resin and other solid ingredients (such as pigments), so that they are mixed into a liquid state, making it easy to flow out through the marker tip and evenly distributed on paper. Solvent also helps control the flowability and drying speed of the ink. For acrylic markers, solvents may include organic solvents such as alcohols, ketones, etc.

[0034] Water: auxiliary solvent, helps to dissolve some water-soluble ingredients, such as some pigments or additives. In addition, water can also be used to dilute the ink, adjust its viscosity and flowability, making it easier to flow out through the marker tip and evenly distributed on paper.

[0035] Other additives: such as preservatives, thickeners, etc. ingredients, adjust the physicochemical indicators of the ink, etc.

[0036] The typical composition of inks is as follows:

[0037] Ingredient CAS No. Proportion Titanium dioxide 13463-67-7 20-40％ Water 7732-18-5 26-46％ Styrene-acrylonitrile 9003-54-7 20.0％ Propylene glycol 57-55-6 10.0％ Pigement yellow 83 5567-15-7 2.3％ Pigment red 112 6535-46-2 1.7％

[0038] The following are typical sedimentation patterns after product storage:

[0039] Standing time Hard sediment height 1 day 0 mm 7 days 0.8 mm 30 days 1.5 mm 90 days 3.2 mm

[0040] To address the technical problems mentioned in the background section, this utility model proposes a marker pen with a combined stirrer. The marker pen can be a direct-liquid acrylic marker or a valve-type acrylic marker, such as... Figures 2-5 As shown, the marker pen has an ink reservoir 3 for storing ink. A combined stirrer is installed in the ink reservoir 3, which includes a free stirrer 2 and a flexible stirrer 1. The density of the free stirrer 2 is greater than that of the titanium dioxide. The free stirrer 2 is located in the ink reservoir 3 and can move freely in the ink reservoir 3. The flexible stirrer 1 is installed at least at one end of the ink reservoir 3.

[0041] When the product is stored vertically for an extended period, hard sediment forms in the ink reservoir 3. Because the height of the elastic stirrer 1 is greater than the height of the hard sediment, only a portion of the elastic stirrer 1 is encased in the sediment. The bottom elastic stirrer 1 supports the free stirrer 2, which remains completely unencased by the hard sediment, allowing for easy movement. The reciprocating motion of the free stirrer 2 impacts the elastic stirrer 1, breaking up the hard sediment and ensuring uniform ink mixing, thus restoring opacity during writing. When the free stirrer 2 impacts the elastic stirrer 1, the elastic stirrer 1 also generates an elastic reaction force on the moving stirrer, accelerating its movement and resulting in faster and more uniform mixing.

[0042] The free stirrer 2 can be spherical or cylindrical. Both shapes allow for efficient movement within the ink tank 3, effectively agitating and stirring the sediment. The spherical design enables the stirrer to rotate rapidly within the ink tank 3 and easily traverse the sediment layer, reducing resistance and improving stirring efficiency. The cylindrical shape increases the surface area in contact with the ink due to its elongated shape, thus accelerating the sedimentation process. Both shapes allow movement within the ink, breaking up the titanium dioxide sediment and ensuring uniform ink mixing. Of course, it is understandable that the free stirrer 2 can be of other shapes, as long as it can move freely within the ink tank 3 and effectively stir the ink.

[0043] The elastic stirrer 1 is made of spring wire, which has good elastic properties and can generate a counterforce according to the movement of the free stirrer 2, thereby improving the stirring efficiency. The material of the spring wire can be high-strength metal or plastic, which ensures that the stirrer is not easily damaged after long-term use. Through this spring wire design, the elastic stirrer 1 can vibrate and gradually break up the hard sediment with the impact of the free stirrer 2, ensuring that the ink can still restore normal writing effect after long-term storage. Of course, it is understood that the elastic stirrer 1 can also adopt other forms, such as spring sheets, etc.

[0044] Further, the elastic stirrer 1 can adopt a cylindrical spring. The design of the cylindrical spring has good fixity and can be effectively installed at the bottom or top of the ink tank 3. It is relatively simple and compact in structure, can adapt to ink tanks 3 of different sizes, and at the same time ensures the effect of the elastic stirrer 1.

[0045] In addition to the cylindrical spring, the elastic stirrer 1 can also adopt a conical spring, which is easier to fix, and the end of the conical spring is smaller, so a smaller force can make it vibrate and gradually break up the hard sediment. Compared with the cylindrical spring, the conical spring can more easily break up the sediment layer when it faces the hard sediment, and the ink is more easily mixed evenly.

[0046] As shown in Figure 2 , Figure 3 , the elastic stirrer 1 has one end installed away from the marker pen tip of the ink tank 3. Since the pen tip end is usually upward during storage or transportation, the sediment in the ink will usually concentrate at the bottom of the right end of the ink tank 3. By fixing the elastic stirrer 1 away from the pen tip, the free stirrer 2 can be prevented from being covered by the hard sediment in the ink tank 3.

[0047] In some embodiments, two elastic stirrers 1 can be provided, as shown in Figure 4 , Figure 5 , respectively installed at both ends of the ink tank 3. This design can ensure that regardless of the storage orientation of the marker pen, whether the pen tip is placed upward or downward, at least one elastic stirrer 1 will not be covered by the sediment, thereby maintaining the stirring effect. If one elastic stirrer 1 is covered by the sediment, the other one can still function, ensuring that the ink always remains uniform. In this design, the effect of the combined stirrer is more significant, especially after long-term storage, the stirring and recovery ability of the ink is enhanced.

[0048] The ink tank 3 is conical, and the inner diameter near the pen tip end is larger than that away from the pen tip end, so as to facilitate processing demolding.

[0049] The end of the marker has a writing assembly 4, including a tip and a relay core, the tip is responsible for delivering ink to the writing surface, and the relay core is used to adjust the flow of ink, so that the writing process is more smooth. The marker also includes an upper cap assembly 5 mounted on the writing assembly 4. The upper cap assembly 5 not only protects the tip from damage, but also prevents the ink from drying out.

[0050] The specific embodiments of the utility model are described above in combination with the drawings, but are not a limitation on the protection scope of the utility model, and those skilled in the art should understand that various modifications or deformations made by those skilled in the art on the basis of the technical solutions of the utility model without creative labor are still within the protection scope of the utility model.

Claims

1. A marker pen having a combined stirrer, the ink formulation of the marker pen containing titanium dioxide which is liable to sedimentation, characterized in that, The marker has an ink tank for storing ink, and a combined stirrer is arranged in the ink tank, wherein the combined stirrer comprises a free stirrer and an elastic stirrer. The free stirrer has a density greater than that of the titanium dioxide, and the free stirrer is arranged in the ink tank and can freely swing in the ink tank; and the elastic stirrer is arranged at least at one end of the ink tank.

2. The marker pen having a combination stirrer as claimed in claim 1 wherein, The free stirrer is a spherical body or a columnar body.

3. The marker pen having a combination stirrer as claimed in claim 1 wherein, The elastic stirrer is made of a spring wire.

4. The marker pen having a combination stirrer as claimed in claim 3 wherein, The elastic stirrer is a cylindrical spring.

5. The marker pen having a combination stirrer as claimed in claim 3 wherein, The elastic stirrer is a conical spring.

6. The marker pen having a combination stirrer as claimed in claim 1 wherein, The elastic stirrer has one end arranged at an end of the ink tank away from the pen head.

7. The marker pen having a combination stirrer as claimed in claim 1 wherein, The elastic stirrer has two ends arranged at two ends of the ink tank respectively.

8. The marker pen having a combination stirrer as claimed in claim 1 wherein, The ink tank is conical, and the inner diameter of the end of the ink tank close to the pen head is greater than that of the end of the ink tank away from the pen head.

9. The marker pen having a combination stirrer as claimed in claim 1 wherein, The marker has a writing assembly at one end, and the writing assembly comprises a pen head and a relay core.

10. The marker pen having a combination stirrer as claimed in claim 9 wherein, The marker further comprises an upper cap assembly arranged on the writing assembly.

Images