Fluid damper, ink supply assembly, printing equipment and printing production line

Abstract

The utility model discloses a fluid damper, an ink supply assembly, printing equipment and a printing production line, belongs to the technical field of printing equipment, and aims to solve the technical problem that an existing printing equipment easily causes non-uniform ink jet of a printing head, the fluid damper comprises a shell and a pressure attenuation part, and an ink inlet cavity and a damping cavity are formed in the shell; an ink inlet hole and an ink outlet hole which are communicated with the ink inlet cavity are formed in the shell, the junction of the damping cavity and the ink inlet cavity is sealed and separated by a pressure attenuation part, and the fluid damper is connected with an external ink supply assembly and an external ink using assembly. When the pressure in the ink pipe is changed, the pressure is transmitted to the pressure attenuation part, and the pressure attenuation effect of the pressure attenuation part and the gas cavity in the damping cavity are used for absorbing and compensating the pressure in the ink inlet cavity, so that the pressure fluctuation amplitude in the ink pipeline is reduced.

Description

Technical Field

[0001] This application belongs to the technical field of printing equipment, and particularly relates to a fluid damper, an ink supply assembly, a printing device, and a printing production line. Background Art

[0002] A UV printing device is a printing device that achieves fast and high-quality printing through ultraviolet curing technology. The print head ejects tiny ink droplets according to image data, and these ink droplets land on the surface of the printing medium. A UV lamp installed near the print head emits ultraviolet light, causing the photosensitizer in the ink to undergo a chemical reaction and quickly solidify into a solid ink layer, achieving the effect of drying immediately after printing.

[0003] During the operation of the printing device, the print head moves relative to the printing medium for printing operations, and at the same time, the ink tube connected to the print head also moves, resulting in changes in the pressure inside the ink tube. Moreover, during the ink supply and ink return processes, due to factors such as the pumping device and the remaining ink volume in the ink cartridge, the ink in the ink tube fluctuates, and it is easy to occur that the ink ejection of the print head is uneven due to uneven ink output. Utility Model Content

[0004] This application aims to at least solve the technical problem of uneven ink ejection of the print head to a certain extent. For this purpose, this application provides a fluid damper, an ink supply assembly, a printing device, and a printing production line.

[0005] In a first aspect, this application provides a fluid damper, which includes a housing. An ink inlet chamber and a damping chamber are provided inside the housing. An ink inlet hole and an ink outlet hole communicating with the ink inlet chamber are provided on the housing. The junction between the damping chamber and the ink inlet chamber is sealed and separated by a pressure attenuation portion.

[0006] Through the technical solution in this embodiment, the external ink supply assembly can be connected to the ink inlet hole of the fluid damper, and the ink outlet hole can be connected to the external ink-using assembly. Ink is pumped into the ink inlet chamber of the fluid damper through the ink inlet hole. When the pressure inside the ink tube changes, the pressure in the ink inlet chamber will change accordingly, and the pressure is transmitted to the pressure attenuation portion. The pressure attenuation portion and the gas chamber in the damping chamber absorb and compensate the pressure in the ink inlet chamber, thereby reducing the amplitude of pressure fluctuations inside the ink tube and solving the problem of uneven ink ejection of the print head to a certain extent.

[0007] In some embodiments, the pressure attenuation portion is an elastic member, a deformable member, a flexible member, or a corrugated buffer member.

[0008] In some embodiments, the pressure attenuation portion is a damping diaphragm, and the damping diaphragm is fluid-sealed between the damping chamber and the ink inlet chamber.

[0009] In some embodiments, an installation groove is provided inside the housing, and the damping diaphragm is detachably arranged in the installation groove. When the damping diaphragm is located in the installation groove, a damping cavity is formed between the top of the housing and the damping diaphragm.

[0010] In some embodiments, a sealing groove is formed in the installation groove, and a sealing ring adapted thereto is arranged in the sealing groove.

[0011] In some embodiments, a pressure relief hole communicating with the damping cavity is formed in the housing.

[0012] In some embodiments, both the ink inlet hole and the ink outlet hole are formed in the bottom wall of the ink inlet cavity, and an ink inlet pipe communicating with the ink inlet hole and an ink outlet pipe communicating with the ink outlet hole are arranged on the side wall of the housing.

[0013] In some embodiments, the axial direction of the ink inlet pipe is perpendicular to the axial direction of the ink inlet hole and / or the axial direction of the ink outlet pipe is perpendicular to the axial direction of the ink outlet hole.

[0014] In some embodiments, the cross sections of the ink inlet cavity and the damping cavity are circular, and the ink inlet hole and the ink outlet hole are symmetrically arranged along a plane where the axis of the ink inlet cavity is located.

[0015] In a second aspect, the present application provides an ink supply assembly, including the above-mentioned fluid damper, further including:

[0016] A flow splitting assembly, the damping cavity of the fluid damper is communicated with the ink inlet end of the flow splitting assembly.

[0017] In a third aspect, the present application provides a printing device, including an external ink supply assembly and an external ink using assembly, further including the above-mentioned fluid damper, the ink inlet hole is communicated with the external ink supply assembly, and the ink outlet hole is communicated with the external ink using assembly.

[0018] In a fourth aspect, the present application provides a printing production line, including the above-mentioned printing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0020] Figure 1 Shows an overall schematic diagram of the fluid damper according to the embodiment of the present application;

[0021] Figure 2Shows an exploded schematic diagram of the fluid damper according to an embodiment of the present application;

[0022] Figure 3 Shows a schematic diagram of the top cover according to an embodiment of the present application;

[0023] Figure 4 Shows a cross-sectional view of the fluid damper according to an embodiment of the present application.

[0024] Reference numerals: 100, outer shell; 110, ink inlet chamber; 111, ink inlet hole; 112, ink outlet hole; 113, sinking groove; 120, damping chamber; 130, top cover; 131, cover plate; 132, peripheral edge; 133, pressure relief hole; 140, housing; 150, mounting groove; 151, sealing groove; 160, sealing ring; 200, damping diaphragm; 300, ink inlet pipe; 400, ink outlet pipe. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] It should be noted that all the directional indications in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly. In the present utility model, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. In addition, the descriptions such as "first", "second", etc. in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0027] The present application will be described below in conjunction with the accompanying drawings and with reference to specific embodiments:

[0028] In the field of battery production, a battery separator needs to be formed on the battery surface to protect the battery surface and prevent damage to the battery from the external environment. In this field, battery blue film is generally used as the separator for coating. This material has good insulation performance, waterproof, moisture-proof, voltage-resistant, puncture-resistant, weather-resistant, oxidation-resistant, chemical-resistant, and high mechanical strength and other characteristics.

[0029] In traditional processes, the finished PET blue film material is often coated on the battery surface by means of thermoplastic molding. However, the PET blue film material is prone to aging and has a poor fitting effect. Therefore, the present application adopts a battery inkjet UV printing technology to spray the liquid ink of the blue film material on the battery surface to form a battery blue film. Therefore, in order to form a uniformly distributed and smooth battery blue film surface, the requirements for the inkjet stability of the print head of the UV printing equipment are very high. During the operation of the printing equipment, the print head moves relative to the printing medium for printing operations, and at the same time, the ink pipeline connected to the print head also moves, resulting in a change in the pressure inside the ink pipeline. Moreover, during the ink supply and ink return processes, due to factors such as the pumping equipment and the remaining ink volume in the ink cartridge, the pressure inside the ink pipeline also changes, which in turn causes uneven inkjet of the print head, resulting in a low flatness of the formed battery blue film, and even the occurrence of bubbles, voids, and other situations.

[0030] In related technologies, a cavity is often provided in a component such as a flow divider to absorb and adjust the pressure fluctuation through the gas in the cavity. However, the gas compression deformation effect is poor, so the absorption effect on the pressure fluctuation is not obvious. Therefore, the embodiments of the present application provide a fluid damper, an ink supply component, a printing equipment, and a printing production line, which can at least solve the technical problem of uneven inkjet of the print head to a certain extent. At the same time, the fluid damper, the ink supply component, the printing equipment, and the printing production line provided by the embodiments of the present application can also be applied to the fields of film spraying, PCB boards and internal circuit diagrams, 3D printing, printing of industrial materials such as circuit boards, electronic components, and mechanical parts, or other fields such as interior decoration.

[0031] Embodiment 1: The embodiments of the present application provide a fluid damper. Refer to Figure 1 and Figure 2, the fluid damper includes a housing 100 and a pressure attenuation section. A hollow chamber is formed inside the housing 100. The pressure attenuation section is located inside the chamber and divides it into two adjacent chambers, forming an ink inlet chamber and a damping chamber 120. The pressure attenuation section is located between the ink inlet chamber and the damping chamber 120 to seal and separate them. An ink inlet hole 111 and an ink outlet hole 112 communicating with the outside are formed on the chamber wall of the ink inlet chamber. The ink inlet hole 111 is used to connect with an external ink supply assembly, and the ink outlet hole 112 is used to connect with an external ink using assembly. In this embodiment, the ink inlet chamber is used to hold the ink entering the ink damper. When the ink enters the ink inlet chamber, a gas chamber is formed between the hermetically arranged pressure attenuation section and the liquid level of the ink. When the pressure changes, the air chamber can first absorb the pressure fluctuations preliminarily, and then transfer the pressure fluctuations to the pressure attenuation section, and the pressure fluctuations are absorbed through the pressure attenuation section, so as to reduce the amplitude of the pressure fluctuations inside the ink pipeline.

[0032] According to different actual situations, the damping chamber 120 can be located on different sides of the ink inlet chamber 110. Here, different sides include the top side, the circumferential side, and the bottom side. For example, when the impact of the liquid causes a change in air pressure and it is necessary to adjust the liquid impact by absorbing the air pressure change fluctuations, the damping chamber 120 can be arranged on the top side of the ink inlet chamber 110, so that when there is ink in the ink inlet chamber 110, an air layer between the pressure attenuation section and the ink below the pressure attenuation section forms a damping chamber, so that the damping chamber 120 can achieve the effect of adjusting the liquid impact by absorbing the air pressure change fluctuations and reduce the pressure in the entire ink circuit; when the flow fluctuation of the liquid itself is relatively large and the pressure fluctuation of the ink can be directly adjusted by absorbing the fluctuation in the liquid flow direction, the damping chamber 120 can be arranged on the circumferential side of the ink inlet chamber 110, and the pressure attenuation section is in direct contact with the ink. When the ink enters the ink inlet chamber 110, the ink directly transfers the fluctuation to the pressure attenuation section, and the pressure attenuation section absorbs the impulse of the flow direction when the ink flows, so as to absorb the pressure fluctuation and achieve the effect of reducing the amplitude of the pressure fluctuation when the ink enters the ink pipeline; when the ink inlet hole 111 is located on the top side of the ink inlet chamber 110 or the pressure of the ink on the bottom is relatively large, the damping chamber 120 can be arranged on the bottom side of the ink inlet chamber 110, and the pressure attenuation section directly serves as the bearing surface of the ink, so as to absorb the impulse or pressure fluctuation of the ink, thus achieving the effect of reducing the amplitude of the ink pressure fluctuation.

[0033] In some embodiments, the pressure attenuation part can be an elastic member, a deformable member, a flexible member or a corrugated buffer member. For example, when the impact of liquid causes air pressure changes and it is necessary to adjust the liquid impact by absorbing the fluctuations of air pressure changes, an elastic member can be used to adapt to the air pressure changes. The effect of absorbing the fluctuations of air pressure changes is achieved through the characteristics of the elastic member deforming to absorb pressure and resetting to provide pressure. When the pressure fluctuation change rate in the ink inlet chamber 110 is not large but the fluctuation amplitude is large, a deformable member can be used as the pressure attenuation part to directly absorb the large pressure changes through its own deformation margin. When the liquid itself has large flow fluctuations and the pressure attenuation part is directly used to absorb the liquid flow fluctuations, a corrugated buffer member can be used as the pressure attenuation part to directly contact the ink. For example, the cross-section is in the shape of a wave, arc or spherical surface, etc. When the ink directly impacts on the pressure attenuation part, the impact force of the ink is reduced through the inclined plane effect, and the impulse during the ink flow is absorbed, thereby reducing the pressure fluctuation. When the ink inlet hole 111 is located at the top of the ink inlet chamber 110 or the pressure of the ink on the bottom is large, a flexible member can be used as the pressure attenuation part to serve as the bearing surface of the ink, so as to directly absorb the impulse or pressure fluctuation of the ink.

[0034] In some embodiments, the pressure attenuation part can be a damping diaphragm. The housing 100 is generally installed horizontally, and the damping diaphragm 200 is horizontally arranged in the chamber, thereby fluid-sealing the entire chamber into an ink inlet chamber 110 and a damping chamber 120. Refer to Figure 2 and Figure 4 , the damping chamber 120 is arranged at the top of the ink inlet chamber 110. Therefore, both the ink inlet hole 111 and the ink outlet hole 112 are located below the damping chamber 120 and the damping diaphragm 200. When ink enters the ink inlet chamber 110, a gas chamber is formed between the sealing damping diaphragm 200 and the liquid level of the ink. When the ink submerges the ink inlet hole 111 and the ink outlet hole 112, a sealed gas chamber is formed. When the pressure changes, the air chamber can first absorb the pressure fluctuations preliminarily, and then transfer the pressure fluctuations to the damping diaphragm 200, causing the damping diaphragm 200 to undergo elastic deformation, realizing the absorption of the pressure fluctuations, and thus reducing the amplitude of the pressure fluctuations inside the ink pipeline.

[0035] In this embodiment, the damping diaphragm 200 is an elastic member made of an elastic material, such as rubber material, so that the damping diaphragm 200 is relatively easy to deform and is more sensitive to pressure fluctuations. The thickness of the damping diaphragm 200 can be set according to the actual application situation. The smaller the thickness, the higher the sensitivity to pressure changes, but the lower the pressure bearing upper limit. In other embodiments, the material of the damping diaphragm 200 can be selected according to the actual situation. For example, when the ink supply flow rate is large but the size of the fluid damper is limited, a material with greater elasticity can be used to provide a greater pressure bearing upper limit.

[0036] In this embodiment, the transverse cross-sections of the ink inlet chamber 110, the damping chamber 120, and the damping diaphragm 200 are all circular. The size of the damping diaphragm 200 is larger than that of the ink inlet chamber 110 and the damping chamber 120. When the damping diaphragm 200 is subjected to the pressure of the gas at the bottom, the distribution is more uniform, and the elastic deformation energy absorption effect of the damping diaphragm 200 is better utilized. In other embodiments, according to different actual situations, the transverse cross-sections of the ink inlet chamber 110, the damping chamber 120, and the damping diaphragm 200 can also be adaptively adjusted to other shapes.

[0037] The diameter of the ink inlet hole 111 is larger than that of the ink outlet hole 112, so that the input speed of the ink under normal pressure is greater than the output speed. After the pressure in the ink inlet chamber 110 increases to a certain extent, the ink output speed of the ink outlet hole 112 reaches the same as the ink input speed of the ink inlet, so that there is always a part of the ink left in the ink inlet chamber 110 and a certain pressure is maintained, so that the damping diaphragm 200 remains in a stressed and open state. When the pressure increases, the damping diaphragm 200 further opens to absorb the pressure. When the pressure decreases, the damping diaphragm 200 contracts to compensate for the pressure, so as to achieve the effect of reducing the pressure fluctuation amplitude inside the ink pipeline.

[0038] Through the technical solution in this embodiment, when the fluid damper is applied to the UV printing device to perform blue film printing on the battery surface, the external ink supply component is connected to the ink inlet hole 111 of the fluid damper, and the ink outlet hole 112 is connected to the external ink using component. The ink is pumped into the ink inlet chamber 110 of the fluid damper through the ink hole. When the pressure inside the ink pipeline changes, the pressure in the ink inlet chamber 110 will change accordingly, and the pressure is transmitted to the air chamber inside itself and the damping diaphragm 200, causing the damping diaphragm 200 to undergo elastic deformation. The elastic deformation of the damping diaphragm 200 and the gas chamber in the damping chamber 120 are used to absorb and compensate the pressure in the ink inlet chamber 110, so as to reduce the pressure fluctuation amplitude inside the ink pipeline, and to a certain extent, solve the problem of uneven ink jetting of the print head.

[0039] In some embodiments, referring to Figure 2 and Figure 3 , the housing 100 includes a housing body 140 and a top cover 130. An installation opening is provided at the top of the housing body 140. The top cover 130 is detachably arranged on the top of the housing body 140 to block the installation opening. An installation groove 150 is recessed and provided inside the installation opening at the top of the housing body 140. The damping diaphragm 200 is detachably arranged in the installation groove 150. Among them, the ink inlet chamber 110 is located inside the housing body 140, and the damping chamber 120 is opened at the bottom of the top cover 130. When the damping diaphragm 200 is located in the installation groove 150, the bottom of the top cover 130 is in sealed contact with the damping diaphragm 200 to form the damping chamber 120, and the damping diaphragm 200 is in sealed contact with the housing body 140, so as to form the ink inlet chamber 110 between the damping diaphragm 200 and the bottom wall of the housing body 140.

[0040] Specifically, the damping chamber 120 can be opened inside the top cover 130, or the top cover 130 includes a cover plate 131 at the top and a surrounding edge 132 forming the damping chamber 120. The damping chamber 120 is formed between the surrounding edge 132 and the cover plate 131. The installation groove 150 is sunk and opened in the housing 140 along the axial direction from the installation opening. After the damping diaphragm 200 is installed in the installation groove 150, the chamber in the outer shell 100 is divided into two parts. One is the ink inlet chamber 110 formed between the damping diaphragm 200 and the bottom wall of the housing 140, and the other is the installation space located in the installation groove 150. When the top cover 130 is installed in the installation groove 150, the surrounding edge 132 is in sealing abutment with the damping diaphragm 200, thereby sealing and restricting the damping diaphragm 200 between the top cover 130 and the housing 140, forming the ink inlet chamber 110 at the bottom of the housing 140 and the damping chamber 120 in the top cover 130 above the housing 140. When disassembling and assembling, removing the top cover 130 can achieve the installation or replacement of the damping diaphragm 200, making the operation more convenient. In some other embodiments, the cover plate 131 can also be separately provided, and the damping diaphragm 200 can be fixedly installed in the installation groove 150 by other means such as threaded connection or bonding, improving the sealing performance and stability of the damping diaphragm 200.

[0041] Installation holes are provided in the outer region of the cover plate 131 located outside the surrounding edge 132, and threaded holes adapted thereto are opened at the corresponding positions on the top surface of the housing 140. The cover plate 131 is installed on the housing 140 by bolts. In other embodiments, threads adapted to each other can also be provided on the outer wall of the surrounding edge 132 and the side wall of the installation groove 150, so that the cover plate 131 can be directly screwed onto the housing 140, or directly inserted by an interference fit method.

[0042] In some embodiments, referring to Figure 2 and Figure 3 , a sealing groove 151 is opened in the installation groove 150. The sealing groove 151 is coaxially opened on the bottom wall of the installation groove 150. A sealing ring 160 adapted thereto is provided in the sealing groove 151. The depth of the sealing groove 151 is less than the thickness of the sealing ring 160. When the sealing ring 160 is located in the sealing groove 151, the sealing ring 160 protrudes outward. The sealing ring 160 is made of an elastic material. During installation, first install the sealing ring 160 into the sealing groove 151, then install the damping diaphragm 200 into the installation groove 150, and press the damping diaphragm 200 and the sealing ring 160 tightly through the top cover 130 to achieve the sealing effect, thereby improving the sealing performance between the damping diaphragm 200 and the outer shell 100 and preventing ink from leaking. In other embodiments, the sealing groove 151 can also be opened at the bottom of the surrounding edge 132 of the top cover 130, so that the sealing ring 160 is located between the top cover 130 and the damping diaphragm 200.

[0043] In some embodiments, the edges of the damping diaphragm 200, the contact surface between the housing 140 and the damping diaphragm 200, and the bottom contact surface of the top cover 130 can be frosted to further improve the sealing performance of the entire device.

[0044] In some embodiments, referring to Figure 1 and Figure 4 , a pressure relief hole 133 is provided on the top cover 130. The pressure relief hole 133 is disposed at the center of the top cover 130. When the pressure in the ink inlet chamber 110 changes, after the damping diaphragm 200 deforms, the gas in the damping chamber 120 can enter or exit through the pressure relief hole 133, so that the force generated by the pressure fluctuation acts more on the damping diaphragm 200, improving the pressure absorption effect of the damping diaphragm 200. In this embodiment, one pressure relief hole 133 is provided. In other embodiments, according to actual needs, multiple pressure relief holes 133 can be provided to improve the pressure relief effect, or when it is necessary to make an avoidance according to actual conditions, the pressure relief hole 133 can be provided on the side wall of the top cover 130 or the housing 140.

[0045] In some embodiments, referring to Figure 1 and Figure 2 , both the ink inlet hole 111 and the ink outlet hole 112 are provided on the bottom wall of the ink inlet chamber 110. An ink inlet pipe 300 communicating with the ink inlet hole 111 and an ink outlet pipe 400 communicating with the ink outlet hole 112 are provided on the side wall of the outer shell 100. Specifically, two ink pipe installation grooves are provided at the bottom of the housing, and the two ink pipe installation grooves communicate with the ink inlet hole 111 and the ink outlet hole 112 respectively. The ink inlet pipe 300 and the ink outlet pipe 400 are respectively installed in the two ink pipe installation grooves. During use, in order to maximize the absorption and adjustment effect of the pressure fluctuation, it is preferably in a sealed state inside the damper, so that the pressure fluctuation during ink inlet is adjusted by the damping chamber 120 and then acts on the ink using pipeline. Therefore, the ink can completely submerge the ink inlet hole 111 and the ink outlet hole 112 to achieve the sealing effect. When the ink enters the ink inlet chamber 110, it first spreads upward from the bottom wall. Therefore, by providing both the ink inlet hole 111 and the ink outlet hole 112 on the bottom wall of the ink inlet chamber 110, the effect of making the ink outlet more uniform can be achieved, and at the same time, the absorption and adjustment effect of the pressure fluctuation is further improved. In other embodiments, the external ink supply component connected to the ink inlet hole 111 is the pressure source. Therefore, when the external ink supply component is inconvenient to be connected to the bottom of the fluid damper, the ink inlet hole 111 can also be provided on the side wall of the ink inlet chamber 110, and the ink outlet hole 112 can be provided on the bottom wall of the ink inlet chamber 110, and a similar effect can also be achieved.

[0046] The ink inlet pipe 300 and the ink outlet pipe 400 are standard components for pipeline connection, used to connect with the pipelines of the external ink supply component and the external ink using component. In this embodiment, both the ink inlet pipe 300 and the ink outlet pipe 400 are detachably arranged, facilitating the replacement of different models according to actual situations. In other embodiments, they can also be integrally formed with the housing 140.

[0047] Further, in this embodiment, the axes of the two ink pipe mounting grooves are horizontally arranged in a direction, that is, perpendicular to the axial directions of the ink inlet hole 111 and the ink outlet hole 112. The axial direction of the ink inlet pipe 300 is perpendicular to the axial direction of the ink inlet hole 111 and / or the axial direction of the ink outlet pipe 400 is perpendicular to the axial direction of the ink outlet hole 112. During use, the fluid damper provided in this embodiment is horizontally installed, so both the ink inlet pipe 300 and the ink outlet pipe 400 are arranged horizontally, enabling the ink during ink inlet and outlet to be in a horizontal state, thereby effectively reducing the influence of gravity on the ink in the fluid damper.

[0048] In some embodiments, the cross-sections of the ink inlet chamber 110 and the damping chamber 120 are circular. The ink inlet hole 111 and the ink outlet hole 112 are symmetrically arranged along a plane where the axis of the ink inlet chamber 110 is located. The ink inlet hole 111 and the ink outlet hole 112 are symmetrically arranged, so that the connection line between the pressure application point and the pressure release point in the ink inlet chamber 110 is located on the center line of the device, enabling the pressure to be more evenly distributed to the damping diaphragm 200, thereby improving the absorption and adjustment effect of the damping on pressure fluctuations.

[0049] In some embodiments, the housing 140 is provided with a sunken groove 113 coaxially at the corresponding positions of the ink inlet hole 111 and the ink outlet hole 112. Thus, after the work is completed, the ink can completely flow out through the sunken groove 113, reducing the residue of the ink in the ink inlet chamber 110.

[0050] Embodiment 2: The present application provides an ink supply component, including the above-mentioned fluid damper, and further including: a flow splitting component, and the ink outlet hole 112 of the fluid damper is communicated with the ink inlet end of the flow splitting component.

[0051] Embodiment 3: The present application provides a printing device. In this embodiment, the printing device can be a UV printing device for battery blue film, including an external ink supply component and an external ink using component, and further including the above-mentioned fluid damper. The ink inlet hole 111 is communicated with the external ink supply component, and the ink outlet hole 112 is communicated with the external ink using component. When the external ink using component is a single print head, the pressure fluctuation adjustment effect is directly achieved through the fluid damper; or it includes the above-mentioned ink supply component, the ink inlet hole 111 is communicated with the external ink supply component, and the ink outlet end of the flow splitting component is communicated with the external ink using component. When the external ink using component is multiple print heads, the ink adjusted by the fluid damper is split by the ink supply splitter, so as to adapt to multiple print heads.

[0052] Embodiment 4: The present application provides a printing production line, including a printing device provided in Embodiment 3.

[0053] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

Claims

1. A fluid damper, characterized in that, Comprising: A housing (100), an ink inlet chamber (110) and a damping chamber (120) are formed inside the housing (100), an ink inlet hole (111) and an ink outlet hole (112) communicating with the ink inlet chamber (110) are formed on the housing (100), and the junction between the damping chamber (120) and the ink inlet chamber (110) is sealed and separated by a pressure attenuation part.

2. A fluid damper according to claim 1, wherein, The pressure attenuation part is an elastic part, a deformable part, a flexible part or a corrugated buffer part.

3. A fluid damper according to claim 1, characterized in that, The pressure attenuation part is a damping diaphragm (200), and the damping diaphragm (200) is fluid-sealed between the damping chamber (120) and the ink inlet chamber (110).

4. A fluid damper according to claim 3, characterized in that, An installation groove (150) is provided inside the housing (100), the damping diaphragm (200) is detachably arranged in the installation groove (150), and when the damping diaphragm (200) is located in the installation groove (150), the damping chamber (120) is formed between the top of the housing (100) and the damping diaphragm (200).

5. A fluid damper according to claim 4, characterized in that, A sealing groove (151) is formed in the installation groove (150), and a sealing ring (160) adapted to the sealing groove (151) is arranged in the sealing groove (151).

6. A fluid damper according to claim 1, characterized in that, A pressure relief hole (133) communicating with the damping chamber (120) is formed on the housing (100).

7. A fluid damper according to claim 1, characterized in that, Both the ink inlet hole (111) and the ink outlet hole (112) are formed on the bottom wall of the ink inlet chamber (110), and an ink inlet pipe (300) communicating with the ink inlet hole (111) and an ink outlet pipe (400) communicating with the ink outlet hole (112) are arranged on the side wall of the housing (100).

8. A fluid damper according to claim 7, characterized in that, The axial direction of the ink inlet pipe (300) is perpendicular to the axial direction of the ink inlet hole (111) and / or the axial direction of the ink outlet pipe (400) is perpendicular to the axial direction of the ink outlet hole (112).

9. A fluid damper according to claim 1, characterized in that, The cross sections of the ink inlet chamber (110) and the damping chamber (120) are circular, and the ink inlet hole (111) and the ink outlet hole (112) are symmetrically arranged along a plane where the axis of the ink inlet chamber (110) is located.

10. An ink supply assembly, comprising the fluid damper according to any one of claims 1-9, characterized in that, Further comprising: A flow splitting assembly, and the damping chamber (120) of the fluid damper communicates with the ink inlet end of the flow splitting assembly.

11. A printing device, comprising an external ink supply assembly and an external ink using assembly, characterized in that, Comprising the fluid damper according to any one of claims 1-9, the ink inlet hole (111) communicates with an external ink supply assembly, and the ink outlet hole (112) communicates with the external ink using assembly.

12. A printing production line, characterized in that, Comprising the printing device according to claim 11.

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