Ink conveying system of printing machine and printing machine

Abstract

The utility model relates to an ink conveying system of a printing machine and the printing machine, the ink conveying system comprises an ink box mounting rack, the side surface of the ink box mounting rack is provided with at least one mounting groove; the ink supply pipe is arranged in the mounting groove, and at least two ink outlets are formed in the ink supply pipe; ink is stored in the ink cylinder; one end of the transmission channel is communicated with the ink cylinder, the other end of the transmission channel is communicated with the ink supply pipe, a pump body is arranged on the transmission channel, and the pump body is used for conveying ink in the ink cylinder to the ink supply pipe. Ink in the ink cylinder is conveyed to the ink supply pipe through operation of the pump body, the ink is directly sprayed out from the ink outlet of the ink supply pipe, the ink supply pipe is matched with the ink box installation frame to achieve uniform ink conveying, the ink conveying amount can be accurately controlled by controlling the rotating speed of the pump body, the occupied space of the ink conveying system is small, and the structure of a pipeline is simple and attractive.

Description

Technical Field

[0001] This utility model relates to the field of printing machine technology, and in particular to an ink supply system for a printing machine and a printing machine. Background Technology

[0002] Currently, ink cartridges in printing machines are all open-type cartridges, and the ink supply system relies on single or double tubes moving back and forth to supply ink. In this design, the ink supply tubes need to move back and forth, and the ink supply pipes need to be suspended above the printing machine, resulting in uneven ink supply and difficulty in accurately controlling the amount of ink supplied. Furthermore, the multiple pipes are haphazardly arranged, which not only leads to a messy and unsightly appearance and takes up a lot of space, but also increases the difficulty of changing colors. The ink tube replacement is complicated, the labor cost is high, and thus the production efficiency is affected. Utility Model Content

[0003] In order to solve at least one of the technical problems mentioned above, this utility model proposes an ink supply system for a printing machine and a printing machine.

[0004] According to some embodiments of this utility model, an ink supply system for a printing machine is provided, comprising: an ink cartridge mounting bracket, wherein at least one mounting groove is provided on the side of the ink cartridge mounting bracket; an ink supply pipe disposed in the mounting groove, wherein at least two ink outlets are provided on the ink supply pipe; an ink cartridge containing ink; and a transmission channel, wherein one end of the transmission channel is connected to the ink cartridge and the other end of the transmission channel is connected to the ink supply pipe, wherein a pump body is disposed on the transmission channel, and the pump body is used to transport the ink in the ink cartridge to the ink supply pipe.

[0005] Based on the above scheme, the pump body operates to deliver the ink in the ink cartridge to the ink supply tube. The ink is sprayed directly from the ink outlet of the ink supply tube. The ink supply tube and the ink cartridge mounting bracket work together to achieve uniform ink delivery. The ink delivery volume can be precisely controlled by controlling the pump body speed. In addition, the ink delivery system occupies little space and the pipe structure is simple and beautiful.

[0006] In some possible implementations, the system further includes an ink return tube disposed in the mounting slot and located below the ink supply tube. The ink return tube is connected to one end of the transmission channel that is connected to the ink cartridge. The pump body is also used to send the ink in the ink return tube back to the ink cartridge.

[0007] Based on the above solution, the ink return tube can collect the ink that is not carried away by the printing roller and remains in the ink cartridge mounting rack. The pump body sends the ink collected in the ink return tube back to the ink cartridge, thereby realizing ink recycling. This can reduce ink waste, solve the problem of ink accumulation in the ink cartridge mounting rack, and reduce the difficulty of cleaning the ink cartridge mounting rack.

[0008] In some possible implementations, the transmission channel includes a first connecting pipe and a second connecting pipe, the first connecting pipe and the second connecting pipe being connected via a quick connector, and the pump body being disposed on the first connecting pipe or the second connecting pipe.

[0009] Based on the above scheme, the transmission channel is composed of a first connecting tube, a second connecting tube, and a quick connector. When changing different colored inks, the second connecting tube can be quickly disassembled and installed through the quick connector, which can reduce the difficulty of the color change process and thus reduce labor costs.

[0010] In some possible implementations, the at least two ink outlets are evenly distributed along the length of the ink supply tube.

[0011] Based on the above solution, the uniform distribution of ink outlets can improve the uniformity of ink jetting and ensure uniform ink application on the printing roller.

[0012] In some possible implementations, the system includes two or more ink supply tubes stacked vertically.

[0013] Based on the above solution, vertically stacking the ink supply tubes can expand the inkjet area, thereby improving the ink application rate of the printing roller and ensuring the final printing effect.

[0014] In some possible implementations, the system further includes a control module, wherein a liquid level sensor is disposed in the ink cartridge, and the control module is electrically connected to the liquid level sensor and the pump body respectively.

[0015] Based on the above scheme, the liquid level sensor detects the ink level in the ink cartridge and sends the detection result to the control module. When the control module determines that the ink level in the ink cartridge is insufficient, it controls the pump to stop until the ink level is detected again to reach the specified height, thereby realizing the function of automatic start and stop control of the pump.

[0016] According to some other embodiments of the present invention, a printing machine is provided, including the ink supply system described in any one of the above embodiments.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the present invention.

[0018] Other features and aspects of the present invention will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions and advantages in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A system structure diagram of an ink supply system for a printing machine according to an embodiment of the present invention is shown;

[0021] Figure 2 This is a side view of the ink cartridge mounting bracket according to an embodiment of the present invention.

[0022] In the picture,

[0023] 1. Ink supply tube; 2. Ink cartridge mounting bracket; 3. First connecting tube; 4. Second connecting tube; 5. Pump body; 6. Ink cartridge; 7. Ink return tube; 8. Quick connector. Detailed Implementation

[0024] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0026] Various exemplary embodiments, features, and aspects of the present invention will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0027] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0028] In this document, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0029] In this article, the term "connection" can be understood as either A directly connecting to B, or A connecting to B through an intermediate component, which can be an electrical component, circuit, chip, or module, etc.

[0030] Furthermore, to better illustrate this utility model, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this utility model can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this utility model.

[0031] Currently, ink cartridges in printing machines are all open-type cartridges. The cartridges are located below or to the side of the printing roller. The printing roller abuts against the opening of the cartridge, the ink supply system delivers ink to the cartridge, and the printing roller then removes the ink from the cartridge.

[0032] Traditional ink supply systems rely on single or double tubes moving back and forth to supply ink. The ink supply tubes need to move back and forth, and the ink supply pipes need to be suspended above the printing machine, resulting in uneven ink supply and difficulty in accurately controlling the ink supply volume. In addition, the multiple pipes are haphazardly arranged, which not only leads to a messy and unsightly appearance and takes up a lot of space, but also increases the difficulty of changing colors. The ink tube replacement is complicated, the labor cost is high, and thus affects production efficiency.

[0033] To solve the above-mentioned technical problems, this utility model provides an ink supply structure for a printing machine. This ink supply structure eliminates the movable design of the ink supply tube, which can be fixedly installed in the ink cartridge. Correspondingly, the ink supply pipeline is improved to achieve uniform ink supply. Moreover, the system has a small overall footprint and a beautiful and simple structure.

[0034] Specifically, please refer to Figures 1-2The ink supply system includes an ink cartridge mounting bracket 2, an ink supply tube 1, an ink cartridge 6, and a transmission channel. The ink cartridge mounting bracket 2 has at least one mounting groove on the side facing the printing roller of the printing machine. The ink supply tube 1 is installed in the mounting groove and has at least two ink outlets for ejecting ink. The ink outlets are located on the side of the ink supply tube 1 facing the printing roller. The transmission channel connects the ink cartridge 6 to the ink supply tube 1. The ink cartridge 6 stores ink. One end of the transmission channel is connected to the ink cartridge 6, and the other end is connected to the ink supply tube 1. A pump body 5 is installed on the transmission channel to transport the ink from the ink cartridge 6 to the ink supply tube 1. The ink is finally ejected from the ink outlets.

[0035] In this embodiment, the ink supply tube 1 is fixedly installed in the ink cartridge mounting bracket 2. Multiple ink outlets are provided on the ink supply tube 1, distributed along its length. As the pump body 5 delivers ink from the ink cartridge 6 to the ink supply tube 1, ink can be dispensed simultaneously from the multiple outlets. Compared to traditional moving ink tube solutions, the structure of the ink supply tube 1 and ink cartridge mounting bracket 2 in this embodiment is simpler, and there is no need to design a moving pipe structure, resulting in lower manufacturing costs. Simultaneous ink dispensing from multiple outlets also enhances ink uniformity and improves the ink application effect on the printing roller. Furthermore, in this embodiment, the movement of ink from the ink cartridge 6 to the ink supply tube 1 depends on the operation of the pump body 5; therefore, the ink cartridge 6 does not need to be forcibly positioned above the ink cartridge mounting bracket 2. Additionally, the ink supply system in this embodiment has fewer pipes, significantly reducing the space required for the ink supply system and improving aesthetics.

[0036] In some embodiments, at least two ink outlets are evenly distributed along the length of the ink supply tube 1. Based on the above scheme, multiple ink outlets of the ink supply tube 1 can simultaneously emit ink, and the even distribution of multiple ink outlets can ensure that the printing roller is uniformly inked along its length, thereby improving the printing effect.

[0037] It should be understood that, in addition to the distribution of the multiple ink outlets on the ink supply tube 1 affecting the uniformity of ink output, the connection position between the transmission channel and the ink supply tube 1, as well as the length of the ink supply tube 1, also affect the uniformity of ink output. In other words, the distribution of the multiple ink outlets on the ink supply tube 1 should be flexibly adjusted according to the connection position between the transmission channel and the ink supply tube 1, and the length of the ink supply tube 1. For example, when the length of the ink supply tube 1 is long, the distance between the connection position of the transmission channel and the ink supply tube 1 and each ink outlet is different, resulting in different ink pressures and ink flow rates at each outlet. Therefore, a non-uniform distribution of the ink outlets can be chosen. In other possible scenarios, the length of the ink supply tube 1 is relatively short, and the fluctuations in ink pressure and ink flow rate at each ink outlet are small and can be ignored. Only the connection position between the transmission channel and the ink supply tube 1 needs to be considered. In this case, the connection between the transmission channel and the ink supply tube 1 should conform to the principle of symmetry. That is, both ends of the ink supply tube 1 can be connected to the transmission channel, and the ink can enter the ink supply tube 1 from both ends and flow towards the middle; or the midpoint of the ink supply tube 1 can be connected to the transmission channel, and the ink can enter the ink supply tube 1 from the midpoint and flow towards both ends, thereby ensuring uniform ink output.

[0038] In some embodiments, the ink supply system includes two or more ink supply tubes 1, which are stacked vertically. Based on the above scheme, the inkjet area provided by the two or more ink supply tubes 1 is larger, the inkjet range and height are greater, and the printing roller can carry away more ink, thereby improving the ink application rate of the printing roller and thus improving the final printing effect.

[0039] The ink supply system of this utility model also includes an ink return pipe 7, which is also disposed in the mounting slot of the ink cartridge mounting bracket 2 and located below the ink supply pipe 1. The end of the ink return pipe 7 is connected to the ink cartridge 6 via the transmission channel. The ink return pipe 7 can collect ink that has not been carried away by the printing roller and has accumulated in the ink cartridge mounting bracket 2. The pump body 5 then sends the ink collected in the ink return pipe 7 back to the ink cartridge 6. That is, the pump body 5 is also used to send the ink in the ink return pipe 7 back to the ink cartridge 6, thereby realizing ink recycling. Based on the above solution, ink waste can be reduced, the problem of ink accumulation in the ink cartridge mounting bracket 2 can be solved, and the cleaning difficulty of the ink cartridge mounting bracket 2 can be reduced.

[0040] In the above embodiment, the pump body 5 should have a bidirectional transmission function. In the ink supply mode, the pump body 5 rotates forward, and the pump body 5 draws ink from the ink cartridge 6 and sends it to the ink supply tube 1; in the ink return mode, the pump body 5 rotates in reverse, and the pump body 5 draws ink from the ink return tube 7 and sends it to the ink cartridge 6.

[0041] In some possible embodiments, the ink return tube 7 can be connected to the ink cartridge 6 through an independent ink return channel. An independent ink return pump is provided on the ink return channel. While the pump body 5 in the transmission channel supplies ink, the ink return pump on the ink return channel performs ink return processing at the same time, thereby avoiding excessive ink accumulation and overflow in the ink cartridge mounting bracket 2.

[0042] In this embodiment of the invention, the transmission channel can be implemented based on the assembly of multiple pipes. Specifically, the transmission channel includes a first connecting pipe 3 and a second connecting pipe 4, which are connected by a quick connector 8. The pump body 5 is disposed on either the first connecting pipe 3 or the second connecting pipe 4. The first end of the first connecting pipe 3 is provided with the quick connector 8, and the second end of the first connecting pipe 3 is connected to the ink supply pipe 1. The first end of the second connecting pipe 4 is provided with the quick connector 8, and the second end of the second connecting pipe 4 is connected to the ink cartridge 6. Additionally, the ink return pipe 7 in the ink cartridge mounting bracket 2 is connected to the first connecting pipe 3.

[0043] Based on the above structure, the transmission channel is composed of a first connecting tube 3, a second connecting tube 4 and a quick connector 8. When changing different colored inks, the second connecting tube 4 can be quickly disassembled and installed through the quick connector 8, which can reduce the difficulty of the color change process, thereby reducing labor costs and helping to improve production efficiency.

[0044] In some embodiments, the ink supply system further includes a control module electrically connected to the pump body 5 to control the start / stop, rotation direction, and speed of the pump body 5, ensuring that the pump body 5 can draw an appropriate amount of ink from the ink cartridge 6 into the ink supply tube 1, thereby achieving precise control of the ink output. Additionally, a liquid level sensor is installed in the ink cartridge 6. The control module is electrically connected to the liquid level sensor, which detects the ink level height in the ink cartridge 6 and sends the detection result to the control module. When the control module determines that the ink level in the ink cartridge 6 is insufficient, it controls the pump body 5 to stop until the ink level is detected again to reach the specified height, thus achieving automatic start / stop control of the pump body 5. Preferably, the control module can perform frequency conversion control on the pump body 5 to further enhance the accuracy of ink output control.

[0045] In this embodiment of the invention, all components of the ink supply system are made of corrosion-resistant materials to improve the stability of the ink supply system and extend its service life. Specifically, to prevent corrosion due to the acidity or alkalinity of the ink, the ink supply tube 1 can be made of PTFE (polytetrafluoroethylene) non-metallic material, the pump body 5 is made of stainless steel, and the ink cartridge mounting bracket 2 is made of carbon fiber. Carbon fiber has the characteristics of corrosion resistance, non-deformation, pressure resistance, higher hardness than metal, and light weight, which can improve the structural strength of the ink cartridge mounting bracket 2 and ensure the stability of the ink supply system operation.

[0046] This utility model embodiment also provides a printing machine, including the ink supply system described in any of the above embodiments. The printing machine can be a conventional printing machine or a gravure printing machine (gravure machine), and this utility model embodiment does not impose specific limitations on this.

[0047] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An inking system for a printing press, characterized in that, The system comprises: an ink cartridge mounting rack, at least one mounting groove being formed on a side of the ink cartridge mounting rack; an ink supply tube, the ink supply tube being arranged in the mounting groove, and at least two ink outlets being formed on the ink supply tube; an ink cylinder, the ink cylinder storing ink; a transmission channel, one end of the transmission channel being in communication with the ink cylinder, the other end of the transmission channel being in communication with the ink supply tube, and a pump body being arranged on the transmission channel, the pump body being used for transmitting the ink in the ink cylinder to the ink supply tube.

2. An inking system for a printing press as claimed in claim 1, characterized in that The system further comprises an ink return tube, the ink return tube being arranged in the mounting groove and being located below the ink supply tube, the ink return tube being in communication with the end of the transmission channel connected to the ink cylinder, and the pump body being further used for sending the ink in the ink return tube back to the ink cylinder.

3. An inking system for a printing press as claimed in claim 2, characterised in that, The transmission channel comprises a first connecting tube and a second connecting tube, the first connecting tube and the second connecting tube being in communication through a quick connector, and the pump body being arranged on the first connecting tube or the second connecting tube.

4. An inking system for a printing press as claimed in claim 1, characterized in that The at least two ink outlets are uniformly distributed along the length direction of the ink supply tube.

5. An inking system for a printing press as claimed in claim 1, wherein, The system comprises two or more ink supply tubes, and the two or more ink supply tubes are vertically stacked.

6. An inking system for a printing press as claimed in claim 1, characterized in that The system further comprises a control module, a liquid level sensor being arranged in the ink cylinder, and the control module being electrically connected with the liquid level sensor and the pump body respectively.

7. A printing machine, characterized in that The system further comprises a printing roller, and the ink supply system according to any one of claims 1-6.

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