CN110682538B

CN110682538B - Coloring mechanism, output equipment, writing pen and working method

Info

Publication number: CN110682538B
Application number: CN201911092991.XA
Authority: CN
Inventors: 魏宏辉; 魏天浩; 魏妗羽
Original assignee: Jiangsu Haoyu Electronic Technology Co ltd
Current assignee: Jiangsu Haoyu Electronic Technology Co ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2024-08-27
Anticipated expiration: 2039-11-11
Also published as: CN110682538A

Abstract

The invention discloses a coloring mechanism and a writing pen. The coloring mechanism comprises a plurality of coloring units, and each coloring unit comprises a driving mechanism and a coloring part; the coloring part is pushed by the driving mechanism to shift. The invention installs coloring mechanism on the writing pen or the output device for coloring different colors of the molten material, solves the problems of single output color and complicated color changing steps of the existing writing pen, and reduces the manufacturing cost of the existing output device.

Description

Coloring mechanism, output equipment, writing pen and working method

Technical Field

The present invention relates to a print output apparatus, and more particularly, to a coloring mechanism used in a print output apparatus, an output apparatus, a writing pen, and a working method.

Background

Three-dimensional or two-dimensional output devices have become popular today, such as 2D or 3D printers, 2D or 3D writing pens, and the like. If the 3D writing pen is used for writing by sending the molten material to a preset point through the writing head, controlling the output path, realizing the writing work of the 3D writing pen, or completing the object to be manufactured by using the 3D writing pen through manual control. The 3D writing pen uses molten materials such as thermoplastic resin, low-melting metal and the like, and the molten materials are heated and melted at the writing head, so that the manufacturing of different shapes can be realized. As shown in fig. 1, the output end of the writing pen in the prior art comprises a molten material (1 a), the molten material is colored by a coloring mechanism (1 b) through a runner, the molten material is heated and melted by a heating mechanism (1 c) in a melting cavity, the melted molten material is output through a pen point, and the diameter of a channel (1 e) of the pen point can be set according to the type of the writing pen. As can be seen from fig. 1, in the prior art, the coloring of the writing pen is single, and when the color needs to be changed, the color of the coloring mechanism around the molten material (1 a) needs to be changed, and each changing step is complicated; or the color is filled in the pigment cavity with different colors and is colored in a spray mode, but the cost of the coloring in the mode is higher, and in order to realize the output of the different colors of the output equipment, the coloring is needed before the melting material is heated and melted, but when the color of the existing output equipment is replaced, in addition, when the color is replaced, the color dragging easily occurs due to the residual of the original pigment.

Disclosure of Invention

The invention aims to: the invention provides a coloring mechanism which can realize quick coloring of output equipment and reduce cost. Another object of the invention is to provide an output device and a writing pen. In addition, the invention also provides a working method of the writing pen.

The technical scheme is as follows: the invention provides a coloring mechanism, which comprises: a plurality of coloring units, each of the coloring units comprising:

A driving mechanism and a coloring part, wherein the coloring part is pushed by the driving mechanism to shift in position; the driving mechanism is a driving mechanism that provides driving force by thermal deformation.

Further, the coloring parts of the plurality of coloring units are contacted with the molten material under the pushing of the driving mechanism for coloring the molten material.

As a preferred structure, the driving mechanism includes a first member: the first component includes a first side and a second side having different coefficients of thermal expansion; the first member has a first end and a second end along a length; the coloring member is located on a side of the first member where the coefficient of thermal expansion is small, and when the driving mechanism is thermally deformed, the coloring member is pushed by the driving mechanism to be displaced.

Preferably, the first end of the first member is extended with two extended ends along the length direction.

The plurality of coloring units are circumferentially distributed, and flow passages for molten materials to pass through are formed among the plurality of coloring units.

The first component is U-shaped, and the U-shaped opening end of the first component is a first end, so that two extension ends are formed.

The coloring member is a coloring rod, and is disposed along a longitudinal direction of the first member in parallel with the first member.

The coloring mechanism comprises a fixing plate, and a plurality of coloring units are vertically fixed on any end face of the fixing plate through a first end of the driving mechanism; the fixing plate is provided with a through hole for the passage of the molten material.

The invention also provides output equipment comprising the coloring mechanism.

The invention provides a writing pen, comprising: the coloring mechanism, the cavity which is positioned above the coloring mechanism and used for containing pigment, and the pen point which is positioned below the coloring mechanism;

The top end of the coloring part of the coloring mechanism extends upwards into the cavity.

A runner for molten materials to pass through is arranged in the middle of the writing pen; and/or the cavity is vertically divided into a plurality of mutually independent subchambers.

The vertical direction in the present invention is the direction from the first end to the second end of the first member.

The writing method of the writing pen comprises the following steps:

When the writing pen is used for monochrome output: the two extension ends of the first component are connected with current, the first component bends towards the side surface with small thermal expansion coefficient to push the coloring component to displace, the molten material is colored by the coloring component, then enters the melting cavity of the pen point to be melted, and is output through the outlet of the pen point to realize the single-color output of the writing pen;

When the pen is used to output different pigments: the cavity for containing the pigment is divided into a plurality of subchambers for containing different pigments, the first parts of two or more driving mechanisms are simultaneously connected with current, the driving mechanisms push the corresponding coloring parts to displace, the molten material is colored by the two or more coloring parts, then enters the melting cavity of the pen point to be melted, and is output through the outlet of the pen point, so that the mixed color output of the writing pen is realized.

The beneficial effects are that: (1) The coloring mechanism pushes the coloring mechanism through the driving mechanism of thermal deformation to realize coloring of the molten material, and the driving mechanism has sensitive response to current, so that the problem of color dragging of the existing output equipment is reduced; (2) Compared with the existing coloring mechanism, the coloring mechanism has the advantages that the structure is simple, and the cost is greatly reduced; (3) The coloring mechanism is arranged at the output end of the writing pen or the output equipment and is used for coloring the output of the equipment, so that the replacement of different colors can be simply realized, and the problems of single output color and complicated color replacement steps of the existing output equipment or writing pen are solved; (4) The writing pen or the output device can realize mixed color output of different pigments.

Drawings

FIG. 1 is a schematic diagram of a prior art nib;

FIG. 2 is a schematic structural view of a coloring mechanism of embodiment 1;

FIG. 3 is a side view of the coloring unit of example 1;

Fig. 4 is a schematic structural view of the driving mechanism of embodiment 1;

Fig. 5 is a schematic structural view of the driving mechanism of embodiment 1;

fig. 6 is a schematic perspective view of the driving mechanism of embodiment 1;

fig. 7 is a schematic structural diagram of a writing pen of embodiment 3;

fig. 8 is a sectional view of the writing pen of example 3.

Detailed Description

Example 1: as shown in fig. 2, the coloring mechanism 1 of the present invention is composed of a plurality of coloring units, and the split type structure of the plurality of coloring units is shown in fig. 3. Each coloring unit comprises a driving unit 10 and a coloring member 20.

The coloring members 20 are shifted in position by the driving mechanism 10 of the coloring unit. The driving mechanism 10 is a driving mechanism that provides driving force by thermal deformation.

As shown in fig. 4, the driving mechanism 10 in this embodiment includes a first member 101, as shown in fig. 5-6, where the first member 101 includes a first side 1011 and a second side 1012 having different coefficients of thermal expansion (in this embodiment, the first side 1011 and the second side 1012 having different coefficients of thermal expansion are bonded together, but may be directly bonded together or indirectly bonded together), and in this embodiment, the first member 101 is made of a bimetal, as shown in fig. 3, the y-axis direction is the length direction of the first member, the x-axis direction is the thickness direction of the first member, the first member 101 has a first end 110 and a second end 120 along the length direction, and the first end 110 of the first member 101 is provided with two extending ends 1013, and in order to prevent a short circuit, a certain space is provided between the two extending ends 1013.

The current connection mode in the present invention is the prior art, for example, the current of the electric storage device such as a battery or an electric board is connected to the first component 101 through wires, for example, the two wires are connected to two electrodes of the electric storage device through the connection of the two wires to one extension end 1013, respectively, for the current connection of the first component 101.

The coloring member 20 is located on a side surface with a small thermal expansion coefficient of the first member, the coloring member 20 is located on a first side surface 1011 with a small thermal expansion coefficient of the first member 101, the coloring member 20 is distributed along the length direction of the first member 101 and is disposed parallel to a plane formed by the first member 101, in this embodiment, the coloring member 20 is a coloring rod, and the coloring rod and the first member 101 may be in direct contact or have a gap therebetween.

Alternatively, a gap is formed between the first member 101 and the coloring rod, so that the influence on the coloring rod or the possible influence on the pigment and the first member performance when the first member is thermally deformed is avoided, and the minimum displacement in the thickness direction of the first member is generated when the maximum gap between the first member 101 and the coloring rod does not exceed the set current.

When current is supplied to the two extension ends 1013, the bimetal is heated when current is supplied to the first member 101, and the first member 101 is bent toward the side having the smaller thermal expansion coefficient due to the difference in thermal expansion coefficients of the two sides of the first member 101, and in this embodiment, the first side 1011 has a smaller thermal expansion coefficient than the second side 1012, and when current is supplied to the electrode 1013, the bimetal is bent toward the first side 1011, thereby driving/pushing the coloring member located at one side thereof to shift in position.

In order to improve the sensitivity of the first component to the current, in this embodiment, the first component is in a U-shaped structure, so that the length of the current passing through the first component is increased, the resistance of the first component is correspondingly increased, and when the current with the same magnitude passes through the first component, the heating efficiency of the first component is increased, so that the sensitivity of the first component is increased. And another consideration of the U-shaped structure of the first component is that, to reduce the complexity of the structure, the open end of the U-shaped structure can be directly used as the two extension ends 1013, which reduces the need for an additional arrangement of the current access structure.

In this embodiment, an alternative way of driving mechanism 10 is: a second member 102 is fixed to the second end 120 of the first member 101, one side of the second member 102 is fixed to the bottom end of the first member, and the second member 102 is inclined toward the side of the first side 1011 having a small coefficient of thermal expansion of the first member 101 and extends away from the first member 101. The inclination angle θ between the plane formed by the second member 102 and the first member 101 may be 30 ° < θ < 150 °, and in this embodiment, the second member 102 is disposed perpendicularly to the first member 101, and is an auxiliary member of the first member that functions as a drive/push.

In this embodiment, the second member 102 has a square or rectangular thin plate structure, the side of the second member 102 fixed to the first member 101 is a first side 130, the side of the second member 102 opposite to the first side is a second side 140, and the second side of the second member 102 is concave to form a recess 1021. The groove on the second side 140 provides for a better engagement with the coloring member. In fact, the shape of the second member serving as an auxiliary pushing function is not fixed, and may be any shape, such as a Y-shaped pushing rod, so that the purpose of this alternative mode can be achieved, that is, the second member 102 is displaced along with the bending of the first member 101 when the first member 101 is thermally deformed due to thermal stress, so as to push the corresponding coloring mechanism.

The bottom end of the coloring rod is positioned in the groove 1021 of the driving mechanism, and can be in contact with the edge of the groove or have a certain distance, and when the driving mechanism 10 is thermally deformed, the coloring member 20 is shifted under the pushing of the driving mechanism 10.

As shown in fig. 7, for convenience in assembly, a plurality of driving mechanisms 10 are fixed on a cylindrical hollow fixing frame 40, each coloring mechanism is located on a hollow side wall of the fixing frame and assembled with the fixing frame 40 to form a cylindrical structure, a fixing plate 30 horizontally extends outwards from the edge of the upper end of the fixing frame 40, the fixing plate 30 is a flat plate perpendicular to the first component 101 of the driving mechanism 10, the fixing plate 30 is convenient for fixing the whole mechanism with other structures, and a through hole 301 for molten materials to pass through is formed in the middle of the fixing plate 30.

After the first end of the driving mechanism 10 is fixed to the fixing plate, after current is supplied from the two extending ends 1013 at the first end 110, the driving mechanism 10 is biased toward the first side 1011, and the lower end of the coloring rod is positioned in the groove 1021 of the second member, and biased toward the flow channel located in the middle by the pushing of the second member 102, for coloring the molten material passing through the flow channel.

The current switching mode of the driving mechanism 10 in the coloring mechanism 1 can be selected from the following modes: welding points corresponding to the two extension ends 1013 of the driving mechanism 10 are provided at corresponding positions of the end surface of the fixing plate 30 where the driving mechanism 10 is mounted, and after welding the two extension ends of the first member 101 having the U-shaped structure to the welding points, the welding points are connected to a main board circuit by wires connected to the welding points for supplying power to the driving mechanism 10.

Example 2: as shown in fig. 7, the coloring mechanism 1 of embodiment 1 is used for an output device, and when the output device has one coloring unit, it can be used for monochrome output. When the input device contains a plurality of coloring units, the input device can be used for outputting various colors.

For different color outputs, this can be achieved by:

one is that the position of a plurality of coloring units is fixed, and the position of a plurality of coloring units can be arranged according to different design requirements, for example, be in array distribution or alone the alignment, and the coloring stick of every coloring unit carries different colours, when the colour needs to be changed, only need switch on the actuating mechanism electric current of corresponding colour.

When the color-changing device is used for outputting different colors at the same position, the plurality of coloring units can be sent to the same position by the transmission mechanism, so that the color change at the same position is realized.

When the color mixture is needed, the coloring units can be distributed in a circumferential shape, and meanwhile, a plurality of driving mechanisms are connected with current to push different coloring rods to color the molten materials at the same position, so that the color mixture is carried out in the melting cavity.

Example 3: the output device of the embodiment is a writing pen, the coloring mechanism installed in the writing pen is composed of a plurality of coloring units, the plurality of coloring units are distributed circumferentially, and a runner for molten materials to pass through is reserved at the center of the plurality of coloring units.

The writing pen consists of a coloring mechanism 1, a cavity 2 which is positioned above the coloring mechanism 1 and is used for containing pigment, a pen head 3 which is positioned below the coloring mechanism and a runner 4 through which molten materials pass; the cavity 2 can be cylindrical or square, and the whole shape can be set according to the requirement.

The top end of the coloring rod serving as the coloring mechanism 1 extends into the cavity 2, so that pigment in the cavity is conveniently conveyed to the coloring rod, and particularly, the coloring rod is made of fiber material, and the pigment in the cavity 2 is conveniently conveyed to the coloring rod.

In order to realize color mixing of the output of the writing pen, the coloring mechanism 1 in the embodiment comprises four coloring units distributed in the circumferential direction, the cavity 2 is divided into four sub-cavities 201 extending vertically, different colors are placed in each sub-cavity 201, CMYK four colors are respectively placed in the embodiment, one driving mechanism 10 of the coloring unit corresponds to one coloring rod, and each coloring rod corresponds to one color in the sub-cavity.

As shown in fig. 8, the cavity 2 for containing pigment, the coloring mechanism 1 and the center of the pen head 3 are all provided with channels for the molten material 5 to pass through, and together form a flow channel 4.

The coloring mechanism 1 is fixed at the lower end of the cavity 2 through the fixing plate 30, the top end of the coloring mechanism 1 is positioned in the corresponding subcavities 201, the subcavities 201 contain corresponding pigments, and four independent subcavities 201 are circumferentially distributed around a central channel.

When current is supplied to the corresponding driving mechanism 10 of the coloring mechanism 1 positioned below the cavity 2, the coloring rod is pushed to shift towards the direction approaching to the molten material 5, and the molten material is colored after the coloring rod contacts with the molten material.

The colored molten material 5 enters a melting cavity of the pen head 3 to be melted, so that the mixture of the molten material 5 and pigment is realized, and the mixed material is output through an outlet of the pen head 3.

The writing method of the writing pen of the embodiment comprises the following steps:

When the writing pen is used for monochrome output: the electrode 1013 of the first component 101 is electrified, the first component 101 bends towards the first side 1011 with small thermal expansion coefficient due to the difference of the thermal expansion coefficients of the metal sheets at the two sides, the first component 10 pushes the coloring component 20 to displace, at the moment, the molten material 5 passing through the corresponding position is colored by the coloring component, the molten material 5 then enters the melting cavity of the pen head 3 to be melted, and the molten material is output through the outlet of the pen head, so that the single-color output of the writing pen is realized;

When the pen is used to output different pigments: the cavity for containing the pigment is divided into a plurality of subchambers for containing different pigments, the optional singlechip can be STM32 or GD32 through a control mechanism 6 such as a singlechip in the prior art, a main board circuit is controlled to simultaneously electrify the first parts 101 of two or more driving mechanisms 10, the driving mechanisms 10 push corresponding coloring parts to displace, push corresponding coloring rods to simultaneously color the molten materials, the molten materials are colored by the two or more coloring parts, then enter the melting cavity of the pen point to melt, different pigments on the molten materials are mixed in the melting cavity and output through the outlet of the pen point, so that the color mixing output of the writing pen is realized.

Claims

1. A coloring mechanism comprising a plurality of coloring units, each of said coloring units comprising:

A drive mechanism (10) and a coloring member (20); the coloring part (20) is pushed by the driving mechanism (10) to shift in position; the driving mechanism (10) is a driving mechanism for providing driving force by thermal deformation;

The drive mechanism (10) comprises a first part (101): the first part (101) comprises a first side (1011) and a second side (1012) having different coefficients of thermal expansion; the first part (101) has a first end (110) and a second end (120) along a length direction;

The coloring part (20) is positioned on the side surface of the first part (101) with small thermal expansion coefficient, and when the driving mechanism (10) is in thermal deformation, the coloring part (20) is in position deviation under the pushing of the driving mechanism (10);

the plurality of coloring units are circumferentially distributed, and flow passages for molten materials to pass through are formed among the plurality of coloring units;

the first component (101) is U-shaped, and the U-shaped opening end of the first component is a first end, so that two extension ends (1013) are formed;

the coloring member (20) is a coloring bar, and is provided along the longitudinal direction of the first member (101) in parallel with the first member (101).

2. The coloring mechanism according to claim 1, comprising a fixing plate (30), wherein a plurality of said coloring units are vertically fixed to either end face of said fixing plate (30) through a first end of the driving mechanism; the fixing plate (30) is provided with a through hole (301) for the passage of a molten material.

3. An output device comprising a tinting mechanism according to any one of claims 1 to 2.

4. A writing pen, comprising: the coloring mechanism (1) according to claim 1, a cavity (2) for containing pigment above the coloring mechanism (1) and a nib (3) below the coloring mechanism (1).

5. Writing pen according to claim 4, characterized in that the coloring means tip of the coloring means (1) extends up into the cavity (2).

6. Writing pen according to claim 4, characterized in that a flow channel (4) for the passage of molten material is provided in the middle of the writing pen.

7. The writing pen according to claim 4, characterized in that the cavity (2) is divided vertically into several mutually independent subchambers (201).

8. A method of writing a writing pen as claimed in any one of claims 4 to 7, comprising the steps of:

when the writing pen is used for monochrome output: the first component is connected with current, the first component bends towards the side with small thermal expansion coefficient to push the coloring component to displace, the molten material is colored by the coloring component, then enters a melting cavity of the pen point to be melted, and is output through an outlet of the pen point to realize single-color output of the writing pen;