Desktop printing inking device

Abstract

The embodiment of the present invention discloses a desktop printing inking device, which relates to the field of flat printing technology; the desktop printing inking device comprises: an ink supply component for holding solid ink; an inking component for inking by friction; wherein the inking component has a working temperature for converting the solid ink into liquid ink; and a moving component for driving the inking component to contact the surface layer of the solid ink. In the embodiment of the present invention, the printing ink is stored and supplied in a solid structure, and then the inking component, after contacting the surface layer of the solid ink, transfers the melted printing ink on the surface layer to the inking component by melting the surface layer and rubbing. This embodiment can effectively avoid the precipitation and phase separation problem of the printing ink, and ensure that the inking quality and material quality of the printing ink meet expectations.

Description

Technical Field

[0001] The invention belongs to the technical field of plane printing, and in particular relates to a desktop printing inking device. Background Art

[0002] Printed electronics is an emerging process technology that applies traditional printing technology to the manufacture of electronic components and products. Electronic paste is one of the basic materials in the printed electronics industry. Among them, conductive paste mainly includes silver paste, aluminum paste, gold paste, copper paste, etc., which are widely used in many fields such as the front and back electrodes of solar panels, RFID electronic tags, mobile phone antennas, and contactless IC card antenna circuits. However, the melting points of the metal components of the above-mentioned conductive pastes are relatively high. After sintering, the conductive phase is still in particle contact, so the contact resistance is relatively large. Low-melting point elemental metals or alloys have low melting points and high conductivity. They are liquid at room temperature and have good fluidity. Conductive inks made of low-melting point metals can replace electronic pastes and are widely used in the printed electronics industry.

[0003] Low-melting-point metals have extremely strong fluidity and surface tension in liquid state, and cannot meet the requirements of adhesion on the printing roller well. Therefore, functional solid particles or other functional solvents / additives are generally added to the low-melting-point metals. Conductive particles are commonly added to the low-melting-point metals to prepare a slurry. On the one hand, the slurry can improve its adhesion to meet printing requirements, and on the other hand, it can improve the electrical properties of the low-melting-point metal.

[0004] At present, the phase separation problem caused by the precipitation of conductive particles in the printing process of low-melting-point metal paste is one of the problems that need to be solved urgently. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a desktop printing inking device to solve the problem that the composition structure of the printing ink in the prior art is unstable and easy to precipitate and separate.

[0006] In some illustrative embodiments, the desktop printing inking device includes: an ink supply component for holding solid ink; an inking component for inking by friction; wherein the inking component has an operating temperature for converting the solid ink into liquid ink; and a moving component that drives the inking component to contact the surface layer of the solid ink.

[0007] In some optional embodiments, the ink supply component includes: a tubular cavity with openings at both ends, one of the openings serving as an ink supply port; a piston member disposed in the tubular cavity; and the tubular cavity between the piston member and the ink supply port constituting an ink storage space with a variable volume.

[0008] In some optional embodiments, the moving part includes: a first motion driving component extending into the tubular cavity from another opening of the tubular cavity to drive the piston to move along the inner wall of the tubular cavity.

[0009] In some optional embodiments, the moving component also includes: a second motion drive component that drives the tubular cavity or the inking component to move in a direction perpendicular to the tubular cavity; and the first motion drive component and the second motion drive component cooperate to complete the gradual inking of the inking component.

[0010] In some optional embodiments, the ink supply component further includes: at least one ink tube arranged side by side in the tubular cavity; both ends of the ink tube are open structures, and one opening serves as an ink supply port; the piston member is arranged in the ink tube; the ink tube between the piston member and the ink supply port constitutes an ink storage space with a variable volume; and the first motion driving component extends into the ink tube from another opening of the ink tube to drive the piston member to move along the inner wall of the ink tube.

[0011] In some optional embodiments, the ink tube is fixed in the tubular cavity by clamping or interference fit; and the ink tube is a detachable structure.

[0012] In some optional embodiments, the ink supply component is provided with a first temperature control component for maintaining the ink in a solid state.

[0013] In some optional embodiments, the inking component is a roller structure or a plate structure.

[0014] In some optional embodiments, the inking component is a roller structure.

[0015] In some optional embodiments, the moving component includes: a third motion driving component that drives the inking component to rotate.

[0016] In some optional embodiments, the inking component is provided with a second temperature control component for maintaining the working temperature.

[0017] In some optional embodiments, the ink contains at least a low-melting-point metal; the ink supply component has an ink storage temperature lower than the melting point of the low-melting-point metal; and the inking component has a working temperature higher than the melting point of the low-melting-point metal.

[0018] Compared with the prior art, this application has the following advantages:

[0019] In the embodiment of the present invention, the printing ink is stored and supplied in a solid structure, and then after the inking component contacts the surface of the solid ink, the melted surface printing ink is transferred to the inking component by melting the surface and rubbing. This embodiment can effectively avoid the precipitation and phase separation problem of the printing ink, and ensure that the inking quality and material quality of the printing ink meet expectations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural example 1 of a desktop printing inking device in an embodiment of the present invention;

[0021] Figure 2 This is a second structural example of a desktop printing inking device in an embodiment of the present invention;

[0022] Figure 3 It is an example of the structure of the ink tube of the desktop printing inking device in the embodiment of the present invention;

[0023] Figure 4 This is a third structural example of a desktop printing inking device in an embodiment of the present invention;

[0024] Figure 5 This is a fourth structural example of a desktop printing inking device in an embodiment of the present invention;

[0025] Figure 6 It is a structural example of an ink supply component of a desktop printing inking device in an embodiment of the present invention;

[0026] Figure 7 It is a structural example of an ink supply component of a desktop printing inking device in an embodiment of the present invention;

[0027] Figure 8 This is an example of the structure of the ink supply component of the desktop printing inking device in the embodiment of the present invention. DETAILED DESCRIPTION

[0028] The following description and the accompanying drawings fully illustrate specific embodiments of the present invention so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The examples represent possible variations only. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The scope of the embodiments of the present invention includes the entire scope of the claims, and all available equivalents of the claims. In this article, these embodiments of the present invention may be represented individually or collectively by the term "invention", which is merely for convenience, and if more than one invention is disclosed in fact, it is not intended to automatically limit the scope of the application to any single invention or inventive concept.

[0029] It should be noted that the various technical features in the embodiments of the present invention can be combined with each other without conflict.

[0030] The embodiment of the present invention provides a desktop printing inking device, specifically, as Figure 1 As shown, Figure 1 This is a structural example 1 of a desktop printing inking device in an embodiment of the present invention; the desktop printing inking device includes: an ink supply component 1, an inking component 2 and a moving component 3; wherein the ink supply component 1 is used to hold solid ink 101; the inking component 2 inks by friction, and has a working temperature that converts the solid ink 101 into liquid ink 102; the moving component 3 is used to drive the inking component 2 to contact the surface of the solid ink 101.

[0031] During operation, the moving part 3 drives the inking part 2 to contact the surface of the solid ink 101, and then the heat transfer effect of the inking part 2 drives the surface of the solid ink 101 to quickly transform into liquid ink 102, that is, the ink is transformed from a non-printable state to a printable state, and the inking part 2 then transfers the melted liquid ink 102 on the surface to the surface of the inking part 2 by friction, thereby achieving inking. In this process, the stored solid ink 101 will be consumed and reduced with the continuous printing operation. In addition to the surface of the stored solid ink 101 being transformed into liquid and taken away by the inking part 2, the solid structure of the solid ink 101 can reduce the phase separation problem caused by the precipitation of the ink itself, and make the composition ratio of the liquid ink transferred to the inking part 1 each time basically consistent.

[0032] In the embodiment of the present invention, the printing ink is stored and supplied in a solid structure, and then after the inking component contacts the surface of the solid ink, the melted surface printing ink is transferred to the inking component by melting the surface and rubbing. This embodiment can effectively avoid the precipitation and phase separation problem of the printing ink, and ensure that the inking quality and material quality of the printing ink meet expectations.

[0033] The printing ink used in the desktop printing inking device in the embodiment of the present invention is suitable for printing ink that can be converted from solid to liquid by temperature, pressure, etc. For example, a conductive paste made of a metal material is selected, and the conductive paste at least contains a low-melting-point metal with a melting point below 300°C. Such low-melting-point metals can be divided into room temperature liquid low-melting-point metals and room temperature solid low-melting-point metals under room temperature conditions; wherein, room temperature liquid low-melting-point metals refer to low-melting-point metals with a melting point below room temperature, which can be in a liquid state under room temperature conditions, such as gallium, gallium-indium alloys, gallium-indium-tin alloys, gallium-tin alloys, gallium-indium-tin-zinc alloys and other gallium-based alloys, while room temperature solid low-melting-point metals refer to low-melting-point metals with a melting point above room temperature but below 300°C, which are still in a solid state under room temperature conditions, such as indium, tin, bismuth, bismuth-indium alloys, bismuth-tin alloys, bismuth-indium-tin alloys, indium-tin alloys and other bismuth-based alloys, indium-based alloys, tin-based alloys and the like.

[0034] In addition to low-melting-point metals, the conductive paste in the embodiment of the present invention may also include high-melting-point conductive metal particles, such as micro-nano-scale silver powder, copper powder, and silver-coated copper powder. Such conductive metal particles can improve the conductive properties of the conductive paste. In addition, other metal / non-metal particles may be added to improve or enhance the corresponding functional properties of the conductive paste, such as gold powder and nickel powder, which can enhance the antioxidant properties of the conductive paste, as well as non-conductive fillers used to improve the viscosity of the conductive paste, such as pigments, etc.

[0035] The conductive paste in the embodiment of the present invention may be in a viscous state after adding one or more of the above-mentioned solid particles. Relative to the above-mentioned solid and liquid states, the viscous state is considered to be a form of the liquid state, that is, the solid ink described in the embodiment of the present application may refer to solidified low-melting-point metal / low-melting-point metal slurry (paste), and the liquid ink may refer to melted low-melting-point metal / low-melting-point metal slurry (paste).

[0036] Specifically, in the desktop printing inking device in the embodiment of the present invention, for room temperature liquid printing ink, the ink supply component 1 can provide a cold source (i.e., the first temperature control component) to maintain the printing ink in a solid state, while the inking component 2 can provide a heat source (i.e., the second temperature control component) to melt the surface of the printing ink in contact with it, or no heat source is required, and it can be kept at room temperature. For another type of room temperature solid printing ink, it is maintained in a solid state at room temperature, so the ink supply component 1 does not need to provide the above-mentioned cold source, while the inking component 2 needs to provide a heat source to melt the surface of the printing ink in contact with it. Among them, the cold source can be selected from the refrigeration sheet, low-temperature nitrogen, ice cubes, etc. in the prior art, and the heat source can be selected from the heating rod, heating block, heating wire, etc. in the prior art.

[0037] That is, the temperature provided by the ink supply component 1 to the printing ink is lower than the melting point of the low-melting-point metal in the printing ink, and the temperature provided by the inking component 2 to the printing ink is higher than the melting point of the low-melting-point metal in the printing ink. Although theoretically, the inking component 2 can satisfy the melting of the low-melting-point metal in the printing ink as long as the temperature provided to the printing ink reaches its melting point, in actual processes, metals have good thermal conductivity. Therefore, in actual use, the inking component 2 provides a temperature higher than the melting point of the low-melting-point metal in the printing ink.

[0038] The desktop printing inking device in the embodiment of the present application can not only avoid the problem of phase separation of printing ink components, but also reduce the risk of oxidation of the stored printing ink in the air by storing the printing ink in a solid state, thereby further ensuring the stable quality of the printing ink.

[0039] The ink supply component 1 in the embodiment of the present invention can be an ink pool, ink tank, etc. with a groove structure, and because the ink on the ink supply component 1 is in a solid state, the ink supply component 1 does not need to adopt a structure to prevent leakage, and can also use a tray with a flat structure or other structures.

[0040] The inking component 2 in the embodiment of the present invention can be a roller structure or a plate structure; wherein the inking component 2 with a roller structure can be inked by contacting and rubbing with the printing ink in a rotating manner, and the inking component 2 can be used as an inking roller or directly as a printing roller, that is, the inking component 2 can be used directly for printing after inking. The inking component 2 with a plate structure can be used to complete printing by pressing after inking is completed.

[0041] The moving component 3 in the embodiment of the present invention is used to drive the inking component 2 to contact the surface of the solid ink 101. Specifically, the ink supply component 1 can be relatively fixed, and the moving component 3 only drives the inking component 2 to approach the solid ink 101 in the ink supply component 1 and ink it; in other embodiments, the inking component 2 can also be relatively fixed, and the moving component 3 only drives the solid ink 101 in the ink supply component 2 to approach the inking component 1 and ink it; in another embodiment, the moving component 3 can also simultaneously control the ink supply component 2 and the inking component 1 to approach each other and ink it, and the present application does not limit this.

[0042] Example 1

[0043] like Figure 2 As shown, Figure 2The second structural example of the desktop printing inking device in the embodiment of the present invention is shown; the desktop printing inking device comprises: an ink supply component 1, an inking component 2 and a moving component 3; wherein the ink supply component 1 comprises: a tubular cavity 11 with openings at both ends, and a piston member 12 located inside the tubular cavity 11; wherein one of the two openings of the tubular cavity 11 serves as an ink supply port 111 of the ink supply component 1, and the other opening serves as a control port 112 of the piston member 12; the tubular cavity 11 has a central opening between the piston member 12 and the ink supply port 111. The tube body between the two constitutes a variable-volume ink storage space. When the printing ink is continuously consumed during the printing process, the variable-volume ink storage space actually moves toward the ink supply port by applying an external force to the piston member 12, thereby driving the solid ink 101 to continuously approach the ink supply component 2 to achieve the function of continuous inking; the ink supply component 1 surrounds the tubular cavity 11 to set a first temperature control component 13 to provide the above-mentioned cold source for maintaining the solid structure of the printing ink (for room temperature solid printing ink, the first temperature control component 13 can be omitted). Among them, the tubular cavity 11 is formed by a shell 15, and the shell 15 can be an integrally formed structure or a spliced ​​structure.

[0044] The inking component 2 includes: a bracket 21, a roller 22 and a second temperature control component 23; wherein the roller 22 is fixed on the bracket 21, and the second temperature control component 23 is arranged inside the roller 22 to provide the printing ink contacting it to be converted from solid to liquid (for room temperature liquid printing ink, the second temperature control component 23 can be omitted);

[0045] The moving component 3 includes: a first motion driving component 31 that extends from the control port 112 of the ink supply component 1 into the ink supply component 1, is connected to the piston component 12 and controls the piston component 12 to move along the tubular cavity 11; a second motion driving component (not shown) that drives the roller 22 of the inking component 2 to contact or detach from the surface layer of the printing ink; and a third motion driving component 32 that drives the roller 22 of the inking component 2 to rotate; wherein the second motion driving component can drive the roller 22 by connecting the bracket 21, so that the roller 22 can move in the horizontal direction and / or vertical direction.

[0046] During operation, the second motion drive component drives the roller 22 to face the solid ink 101 on the ink supply component 1, so that the surface of the solid ink 101 is converted into liquid ink 102; the third motion drive component 32 then drives the roller 22 to rotate, so that the converted liquid ink 102 adheres to the surface of the roller 22 by friction; wherein, the rotation of the roller 22 can be performed after contacting the surface of the solid ink 101, or before contacting the surface of the solid ink 101. Preferably, the roller 22 starts to rotate after contacting the surface of the solid ink 101, so that the surface of the solid ink 101 is melted as much as possible, avoiding rigid friction between the solid ink 101 and the roller 22, and scratches on the surface of the roller 22. In other embodiments, this problem can also be ignored by selecting a roller 22 with a harder texture. The first motion drive component 31 continuously drives the solid ink 101 to approach the roller 22 according to the consumption of the printing ink.

[0047] The first motion drive component 31, the second motion drive component and the third motion drive component 32 in the embodiment of the present invention include necessary power sources and connecting parts, the power source is such as a motor; the connecting parts are such as rods, shafts, plates, etc., whose connection structures and driving methods are well known to those skilled in the art and will not be repeated here; and the driving parameters between the first motion drive component 31, the second motion drive component and the third motion drive component 32 can be set by designers or operators based on their experience, and this application does not limit this.

[0048] The ink supply port of the ink supply component 1 in this embodiment can contact the roller 22 of the inking component 2 at any angle, so as to meet the applicability under specific space requirements. Preferably, the ink supply component 1 is arranged below the inking component 2, which is conducive to the concealment and beauty of the structure.

[0049] The desktop printing inking device in this embodiment has a good inking state and can avoid the problems of phase separation and oxidation of printing ink. It has a simple structure and is easy to implement, and is suitable for desktop printing products.

[0050] Example 2

[0051] Combination Figure 2 Reference Figure 3-4In Example 2, on the basis of Example 1, an ink tube 14 that is easy to replace is added to the ink supply component 1. Specifically, the ink tube 14 is arranged in the tubular cavity 11. The ink tube 14 also has a structure with two openings at both ends. One opening is close to the ink supply port 111 of the tubular cavity 11, serving as the ink supply port 141 of the desktop printing inking device under this embodiment, and the other opening serves as the control port 142 of the piston member 12; the piston member 12 is arranged inside the ink tube 14, and the tube body of the ink tube 14 between the piston member 12 and the ink supply port 141 constitutes an ink storage space with a variable volume. The piston member 12 is driven by the first motion driving assembly 31 of the moving component 3. The structure and driving method are the same as those in Example 1, and will not be repeated here.

[0052] The ink tube 14 can be detachably fixed inside the tubular cavity 11 by means of clamping or interference fit. In this embodiment, the bottom of the ink tube 14 is clamped on the bottom surface of the tubular cavity 11.

[0053] The desktop printing inking device in this embodiment does not need to add ink into the tubular cavity 11, but stores the printing ink in an ink tube 14 independent of the desktop printing inking device. On the one hand, it can achieve the effect of easy disassembly and replacement, and on the other hand, it can also avoid the contamination of the ink supply component 1 by the printing ink and avoid the cleaning cost of the tubular cavity 11.

[0054] Example 3

[0055] like Figure 5 As shown, relative to Example 2, the diameter dimensions of the tubular cavity 11 and the ink tube 14 are smaller than the axial dimensions of the roller 22, and the relative movement of the roller 22 and the ink tube 14 is driven by the second motion driving assembly of the moving part 3, thereby achieving full-page inking of the roller 22.

[0056] This structure does not affect the inking effect, but also reduces the space occupied by the ink supply component 1 in the desktop printing inking device, which is conducive to the trend of miniaturization of desktop printing equipment.

[0057] Example 4

[0058] like Figure 6 As shown, compared with the third embodiment, the ink tubes 14 are arranged in parallel, which can reduce the frequency of replacing the ink tubes 14 and improve the ink storage capacity and printing efficiency. When the ink tubes 14 are switched, the position of the roller 22 can be controlled by the second motion drive assembly, so as to achieve the use of the replacement ink tubes 14.

[0059] In other embodiments, the tubular cavities may be directly designed to be multiple and arranged side by side.

[0060] Example 5

[0061] like Figure 7 As shown, in Example 5, an improved structure is proposed for the ink supply port of the tubular cavity 11 and / or the ink tube 14, and the ink supply port has an arc-shaped groove corresponding to the roller 22, thereby improving the contact range between the roller 22 and the printing ink, thereby improving the inking efficiency of the roller 22.

[0062] Example 6

[0063] Example 6 is a replacement solution for the inking component of Example 1. Specifically, the inking component includes: a printing plate (plate structure) and a second temperature control component. The second temperature control component is arranged on the printing plate (non-printing surface), and when working, the second motion drive component contacts the printing ink on the ink supply component according to a set trajectory.

[0064] Example 7

[0065] like Figure 8 As shown, Example 7 uses an ink tube 14 on the basis of Example 3, and proposes an implementation scheme that the ink tube 14 is easy to disassemble and has a stable structure. In this embodiment, the ink tube 14 also includes a clamping platform 143 located outside its ink supply port 141; the ink supply component 1 also includes: an ink tube buckle 16, which is fixed to the shell 15 outside the ink supply port 111 of the tubular cavity 11, and is used to cooperate with the top surface of the shell 15 to fix the clamping platform 143 of the ink tube 14, thereby ensuring the stable assembly of the ink tube 14 in the tubular cavity 11. When assembling the ink tube 14, the ink tube buckle 16 can be rotated to a position that does not interfere with the falling of the clamping platform 143 of the ink tube 14. After the ink tube 14 is assembled into the tubular cavity 11, the ink tube buckle 16 is rotated back to a relative position with the clamping platform 143 of the ink tube 14 to be fixed.

[0066] Preferably, a telescopic spring 17 is provided between the bottom surface of the ink tube 14 and the bottom of the tubular cavity 11 to reduce the precision requirements for the ink tube 14 and its assembly structure and improve the structural stability of the ink tube 14 in the tubular cavity 11 .

[0067] The desktop printing inking device in the embodiment of the present invention can be used as an independent device or as a structural component of a desktop printer.

[0068] Those skilled in the art will also appreciate that the various illustrative logic blocks, modules, circuits, and algorithmic steps described in conjunction with the embodiments herein can all be implemented as electronic hardware, computer software, or a combination thereof. In order to clearly illustrate the interchangeability between hardware and software, various illustrative components, blocks, modules, circuits, and steps are generally described above around their functions. Whether such functions are implemented as hardware or software depends on specific applications and the design constraints imposed on the entire system. A skilled person can implement the described functions in an alternative manner for each specific application, but such implementation decisions should not be interpreted as departing from the scope of protection of the present disclosure.

Claims

1. A desktop printing inking device, characterized in that: include: An ink supply component for containing solid ink; An inking component for inking by friction; wherein the inking component has a working temperature for converting the solid ink into liquid ink; A moving component driving the inking component to contact the surface layer of the solid ink; The ink supply component comprises: A tubular cavity open at both ends; At least one ink tube is arranged side by side in the tubular cavity, and both ends of the ink tube are open structures, and one opening is used as an ink supply port; a piston member disposed in the ink tube; The ink tube has a tube body between the piston and the ink supply port, forming an ink storage space with a variable volume; The ink tube is fixed in the tubular cavity by clamping or interference fit; the ink tube is a detachable structure; The moving parts include: A first motion driving component extending from another opening of the ink tube into the ink tube to drive the piston to move along the inner wall of the ink tube; The ink contains at least a low melting point metal; the ink supply component has an ink storage temperature lower than the melting point of the low melting point metal; and the inking component has a working temperature higher than the melting point of the low melting point metal.

2. The desktop printing inking device according to claim 1, characterized in that: The moving part also includes: A second motion driving component driving the tubular cavity and / or the inking component to move in a direction perpendicular to the tubular cavity; The first motion drive assembly and the second motion drive assembly cooperate to complete the gradual inking of the inking component.

3. The desktop printing inking device according to claim 1, characterized in that: The ink supply component is provided with a first temperature control component for maintaining the ink in a solid state.

4. The desktop printing inking device according to claim 1, characterized in that: The inking component is a roller structure or a plate structure.

5. The desktop printing inking device according to claim 4, characterized in that: The inking component is a roller structure; The moving component includes: a third moving driving component that drives the inking component to rotate.

6. The desktop printing inking device according to claim 1, characterized in that: The inking component is provided with a second temperature control component for maintaining the working temperature.

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