Cooling machine head of hot rolling jet printing machine

Abstract

The utility model provides a hot rolling jet printing machine cooling machine head, which comprises a machine body, a vortex tube, a pipeline assembly and a jet printing device, the machine body is provided with an installation cavity, the side wall of the machine body is provided with an installation hole, the vortex tube is installed in the installation hole in a penetrating way, the vortex tube is provided with an air inlet, a cold air outlet and a hot air outlet, the hot air outlet is located outside the machine body, the cold air outlet is arranged in the machine body and faces the jet printing device, and the pipeline assembly is arranged at the top of the machine body. In this way, the normal-temperature compressed air is cooled through the vortex tube and is aligned with the jet printing device for cooling after being cooled, the whole machine body is a sealed cavity, residual cold air can cool the pipeline when diffusing in the mounting cavity and leaking along the pipeline assembly, the purpose of cooling is further achieved, and meanwhile hot air is discharged out of the machine body from the hot air outlet. The continuous high-temperature severe environment is changed, the service life of each part is remarkably prolonged, meanwhile, the problem of calcification deposition of a jet printing coating is effectively avoided, and the maintenance strength is reduced.

Description

Technical Field

[0001] This utility model relates to the field of cooling technology for hot rolling inkjet printers, and in particular to a cooling head for a hot rolling inkjet printer. Background Technology

[0002] Hot rolling inkjet printers not only improve production efficiency, but also meet customers' needs for product identification through high-quality product marking, enhance corporate image, and enable traceability of individual products to ensure product quality monitoring.

[0003] The inkjet printer on the thin slab continuous casting and rolling production line operates in an environment with temperatures between 500℃ and 800℃. The printer head is approximately 300mm away from the hot coil, and each coil is printed within one minute. This prolonged exposure to high temperatures shortens the lifespan of components such as electromagnets and sensors inside the printer head, leading to printing failures. Furthermore, the high temperature accelerates the calcification and deposition of the ink, causing pipe blockages and resulting in blank prints, requiring manual cleaning and putting pressure on subsequent production. Because the production line is not shut down, manual marking is also required on the hot coils, making the work extremely labor-intensive.

[0004] Therefore, it is necessary to propose a cooling head for a hot-rolled inkjet printer to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0005] The main purpose of this utility model is to provide a cooling head for a hot rolling inkjet printer to solve the problems of high working environment temperature and short service life of parts in the existing hot rolling inkjet printer.

[0006] To achieve the above objectives, this utility model provides a cooling head for a hot-rolled inkjet printing machine, comprising a machine body, a vortex tube, a piping assembly, and a printing device; wherein,

[0007] The machine body has an installation chamber, and the printing device is built into the installation chamber;

[0008] The side wall of the machine body is provided with a mounting hole, and the vortex tube is installed through the mounting hole. The vortex tube has an air inlet, a cold air outlet and a hot air outlet. The air inlet is used to connect to compressed air, the hot air outlet is located outside the machine body, and the cold air outlet is built into the machine body and is oriented towards the printing device.

[0009] The top of the body is also provided with a pipeline channel, and the top of the pipeline channel is provided with a pipeline through hole. The pipeline assembly is connected to the pipeline channel and passes through the pipeline through hole to extend into the installation chamber.

[0010] Preferably, the pipeline assembly includes a sleeve and an air inlet pipe. The sleeve is fitted onto the pipeline channel, and the air inlet pipe is built into the sleeve and passes through the pipeline through hole. The air inlet pipe is connected to the air inlet of the vortex tube.

[0011] Preferably, the vortex tube is disposed at the bottom of the machine body, and the cold air outlet of the vortex tube is spaced apart from the printing device.

[0012] Preferably, the body includes a housing and two side covers arranged laterally opposite each other. The bottom of the side covers is provided with protrusions. The bottom of the housing is provided with grooves corresponding to the protrusions. The protrusions are inserted into the grooves. The side covers are detachably connected to the housing by bolts.

[0013] Preferably, it further includes a sealing strip disposed between the housing and the side cover.

[0014] Preferably, there are multiple through holes in the pipeline, and the multiple through holes are arranged at intervals along the circumference of the pipeline channel.

[0015] Preferably, it also includes a flange connected to the top of the body.

[0016] Preferably, both the sleeve and the air inlet pipe are flexible hoses.

[0017] Preferably, the vortex tube is connected to the mounting hole via a pipe fitting.

[0018] Preferably, the top of the pipeline channel is provided with a plurality of through holes, which are arranged at intervals along the circumference of the pipeline channel and located inside the through holes.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention provides a cooling head for a hot rolling inkjet printer, comprising a body, a vortex tube, a pipeline assembly, and an inkjet printing device. The body has an installation chamber, in which the inkjet printing device is built. An installation hole is provided on the side wall of the body, through which the vortex tube is installed. The vortex tube has an air inlet, a cold air outlet, and a hot air outlet. The air inlet is used to connect to compressed air, and the hot air outlet is located outside the body and is built into the body and faces the inkjet printing device. A pipeline channel is also provided on the top of the body, and a pipeline through hole is provided at the top of the pipeline channel. The pipeline assembly is connected to the pipeline channel and extends through the pipeline through hole into the installation chamber. The compressed air at room temperature is cooled by passing through a vortex tube. After cooling, it is directed at the printing device for further cooling. The entire machine body is a sealed chamber. The remaining cold air diffuses within the installation chamber and leaks out along the pipeline components, further cooling the pipeline and achieving the purpose of cooling. At the same time, hot air is discharged from the hot air outlet to the outside of the machine body, changing the harsh environment of continuous high temperature, significantly extending the service life of various components, and effectively avoiding the problem of calcification and deposition of printing paint, reducing maintenance intensity. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model in an application scenario.

[0023] Figure 2 This is a three-dimensional schematic diagram of the application scenario of the overall structure after removing the side cover in one embodiment of the present invention;

[0024] Figure 3 This is a cross-sectional schematic diagram of the overall structure in one embodiment of the present utility model, illustrating an application scenario.

[0025] Figure 4 This is a cross-sectional schematic diagram of a vortex tube in one embodiment of the present invention;

[0026] Figure 5 This is a perspective view of the side cover in one embodiment of the present utility model;

[0027] Figure 6 This is a three-dimensional schematic diagram of the overall structure in one embodiment of the present invention.

[0028] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0029] Explanation of icon numbers:

[0030] 10. Body; 110. Mounting chamber; 120. Piping channel; 121. Piping through hole; 122. Wiring through hole; 130. Housing; 131. Groove; 140. Side cover; 141. Protrusion; 150. Pipe joint; 160. Flange; 20. Vortex tube; 210. Air inlet; 220. Cold air outlet; 230. Hot air outlet; 30. Piping assembly; 310. Sleeve; 320. Air inlet pipe; 40. Printing device. Detailed Implementation

[0031] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0035] Please see the appendix Figure 1-6This utility model provides a cooling head for a hot-rolled inkjet printer, comprising a body 10, a vortex tube 20, a pipeline assembly 30, and a printing device 40. First, it should be noted that in this application, "lateral" refers to the width direction along the body 10, as shown in the accompanying drawings. Unlike existing technologies where prolonged high-temperature baking shortens the lifespan of components such as electromagnets and sensors inside the printing head, leading to printing failures, high temperatures also accelerate the calcification and deposition of printing ink, causing pipeline blockage and resulting in blank printing, requiring manual cleaning and putting pressure on subsequent production, this application addresses these deficiencies by providing a cooling head for a hot-rolled inkjet printer, as detailed below:

[0036] The machine body 10 has a mounting chamber 110, in which the printing device 40 is built. A mounting hole is provided on the side wall of the machine body 10, through which the vortex tube 20 is installed. The vortex tube 20 has an air inlet 210, a cold air outlet 220, and a hot air outlet 230. The air inlet 210 is used to connect compressed air, the hot air outlet 230 is located outside the machine body 10, and the cold air outlet 220 is built into the machine body 10 and faces the printing device 40. A pipe channel 120 is also provided on the top of the machine body 10, with a pipe through hole 121 at the top end. The pipe assembly 30 is connected to the pipe channel 120 and extends through the pipe through hole 121 into the mounting chamber 110.

[0037] Specifically, the cooling head of the hot-rolled inkjet printer in this application includes a body 10, a vortex tube 20, a piping assembly 30, and an inkjet printing device 40. The body 10 serves as the mounting carrier for the entire structure, providing space for the vortex tube 20 and the piping assembly 30. It also has an internal mounting chamber 110 for mounting the inkjet printing device 40 and other electrical components. The vortex tube 20 is used to introduce gas and cool it. When the vortex tube 20 is working, compressed gas enters the vortex tube 20 tangentially, forming a high-speed rotating vortex. Due to the principle of conservation of angular momentum, the angular velocity of the inner vortex is higher than that of the outer vortex. The friction between fluids causes the gas to return to the same angular velocity, resulting in the inner layer decelerating and the outer layer accelerating. The inner layer loses some kinetic energy and its temperature drops, while the outer layer receives energy from the inner layer and its temperature rises. Thus, after the high-pressure airflow is depressurized by the vortex tube 20, a very cold flow will be generated in the center of the tube, and a very hot flow will be generated on the outside. The cold flow plays a cooling role in the chamber. Therefore, the mounting hole on the side wall of the body 10 is used for the installation of the vortex tube 20, so that one end is inside and the other end is outside. Preferably, the vortex tube 20 can be connected to the mounting hole through the pipe joint 150, which is convenient and stable, and has good sealing performance.

[0038] The vortex tube 20 has an air inlet 210, a cold air outlet 220, and a hot air outlet 230. The air inlet 210 is used to receive compressed air at room temperature, which can be connected to the air inlet 210 through a pipe from the pipeline assembly 30. The cold air outlet 220 is used for the cold air flow after processing by the vortex tube 20. It is located in the mounting chamber 110 to form a cooling environment, and the cold air outlet 220 faces the printing device 40 to better cool the printing device 40 and improve targeted cooling. The hot air outlet 230 is used to discharge the hot air produced by the vortex tube 20 to the outside of the body 10, so as to avoid the hot air flow affecting the cooling environment inside the body 10. Therefore, the hot air outlet 230 is located outside the body 10. The pipe channel 120 at the top of the body 10 is used for the installation of the pipe assembly 30, so that the pipes can be connected to the cavity. The pipe through hole 121 is opened at the top of the pipe channel 120 to ensure one hole and one pipe, thereby avoiding cold air leakage and improving the effectiveness of the cooling environment.

[0039] In a preferred embodiment of the present invention, the pipeline assembly 30 includes a sleeve 310 and an air inlet pipe 320. The sleeve 310 is sleeved on the pipeline channel 120, and the air inlet pipe 320 is built into the sleeve 310 and passes through the pipeline through hole 121. The air inlet pipe 320 is connected to the air inlet 210 of the vortex pipe 20.

[0040] It should be noted that the sleeve 310 is used to cover the air inlet pipe 320 to prevent the air inlet pipe 320 from being exposed and damaged, and to prevent cold air from flowing out from the gap between the pipe through hole 121 and the air inlet pipe 320. The air inlet pipe 320 is used to connect compressed gas, so after it extends into the mounting chamber 110, it is directly connected to the air inlet 210 of the vortex tube 20, so that room temperature gas enters from the air inlet 210 of the vortex tube 20, and after working by the vortex tube 20, it is divided into hot gas flowing out from the hot gas outlet 230 and cold gas flowing out from the cold gas outlet 220. It is worth mentioning that both the sleeve 310 and the air inlet pipe 320 can be made of flexible hoses. Flexible hoses can adapt to the complex motion trajectory of the actuator after being connected to the robot end effector, improving the adaptability of the pipe and avoiding cracking. In another preferred embodiment, an inner tube can be added to the inside of the sleeve 310, and a spring can be sleeved between the inner tube and the inside of the sleeve 310. Under the support of the spring, the hose can deform under the action of external force and return to its original shape after the external force is removed. This avoids the hose from collapsing due to long-term bending, reduces wear, and can further reduce the number of maintenance times for parts.

[0041] In a preferred embodiment of the present invention, the vortex tube 20 is disposed at the bottom of the body 10, and the cold air outlet 220 of the vortex tube 20 is spaced apart from the printing device 40.

[0042] It should be noted that since the nozzle of the printing device 40 is located at the bottom of the body 10, the printing device 40 is also installed at the bottom of the body 10 when it is built into the body 10. In order to ensure a better cooling effect, the vortex tube 20 is also set at the bottom of the body 10, so as to be aligned with the printing device 40. Preferably, the cold air outlet 220 of the vortex tube 20 is spaced apart from the printing device 40 to ensure that the cold air can evenly cover the surface of the printing device 40 and improve the uniformity of cooling performance.

[0043] In a preferred embodiment of the present invention, the body 10 includes a housing 130 and two side covers 140 arranged laterally opposite each other. The bottom of the side cover 140 is provided with a protrusion 141, and the bottom of the housing 130 is provided with a groove 131 corresponding to the protrusion 141. The protrusion 141 is inserted into the groove 131, and the side cover 140 is detachably connected to the housing 130 by bolts.

[0044] It is worth noting that the body 10 adopts a combination of housing 130 and side cover 140, which is easy to disassemble and assemble. When connecting pipes and lines, the side cover 140 can be opened first, which facilitates operation and observation. The bottom can be connected by a combination of protrusion 141 and groove 131, and the top is then firmly connected by bolts. This makes operation convenient and the connection tight.

[0045] In a preferred embodiment of the present invention, a sealing strip is further included, which is disposed between the housing 130 and the side cover 140.

[0046] It is worth noting that the sealing strip (not shown in the figure) is used to improve the connection sealing between the housing 130 and the side cover 140 to avoid cold air leakage and better ensure the cooling performance of the mounting chamber 110.

[0047] Furthermore, there are multiple through holes 121 in the pipeline, and the multiple through holes 121 are arranged at intervals along the circumference of the pipeline channel 120.

[0048] It should be noted that multiple through holes 121 are provided to facilitate the connection of other component pipelines, thereby allowing the necessary medium to pass through. It is also worth mentioning that multiple wiring through holes 122 are provided at the top of the pipeline channel 120. The wiring through holes 122 are used for the through connection of electrical wires, allowing the electrical wires to enter the installation chamber 110 and connect with various electrical components. The multiple wiring through holes 122 are arranged at intervals along the circumference of the pipeline channel 120 and are located inside the through holes 121. This arrangement is convenient for storage and will not cause the phenomenon of messy and tangled wiring.

[0049] Furthermore, it also includes a flange 160, which is connected to the top of the body 10.

[0050] It should be understood that the flange 160 is used to connect to the robot mechanism (not shown) and is connected to the top of the body 10 so that the entire print head is fixed to the robot mechanism for printing.

[0051] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cooling head for a hot-rolled inkjet printing machine, characterized in that, This includes the machine body, vortex tube, piping assembly, and printing device; among which, The machine body has an installation chamber, and the printing device is built into the installation chamber; The side wall of the machine body is provided with a mounting hole, and the vortex tube is installed through the mounting hole. The vortex tube has an air inlet, a cold air outlet and a hot air outlet. The air inlet is used to connect to compressed air, the hot air outlet is located outside the machine body, and the cold air outlet is built into the machine body and is oriented towards the printing device. The top of the body is also provided with a pipeline channel, and the top of the pipeline channel is provided with a pipeline through hole. The pipeline assembly is connected to the pipeline channel and passes through the pipeline through hole to extend into the installation chamber.

2. The cooling head of the hot-rolled inkjet printing machine according to claim 1, characterized in that, The pipeline assembly includes a sleeve and an air inlet pipe. The sleeve is fitted onto the pipeline channel, and the air inlet pipe is built into the sleeve and passes through the pipeline through hole. The air inlet pipe is connected to the air inlet of the vortex tube.

3. The cooling head of the hot-rolled inkjet printing machine according to claim 1, characterized in that, The vortex tube is located at the bottom of the machine body, and the cold air outlet of the vortex tube is spaced apart from the printing device.

4. The cooling head of the hot-rolled inkjet printing machine according to claim 1, characterized in that, The body includes a housing and two side covers arranged laterally opposite each other. The bottom of the side covers is formed with protrusions. The bottom of the housing is provided with grooves corresponding to the protrusions. The protrusions are inserted into the grooves. The side covers are detachably connected to the housing by bolts.

5. The cooling head of the hot-rolled inkjet printing machine according to claim 4, characterized in that, It also includes a sealing strip disposed between the housing and the side cover.

6. The cooling head of the hot-rolled inkjet printing machine according to claim 1, characterized in that, The pipeline has multiple through holes, which are arranged at intervals along the circumference of the pipeline channel.

7. The cooling head of the hot-rolled inkjet printing machine according to claim 1, characterized in that, It also includes a flange that is connected to the top of the body.

8. The cooling head of the hot-rolled inkjet printing machine according to claim 2, characterized in that, Both the sleeve and the air inlet pipe are made of flexible tubing.

9. The cooling head of the hot-rolled inkjet printing machine according to claim 1, characterized in that, The vortex tube is connected to the mounting hole via a pipe fitting.

10. The cooling head of the hot-rolled inkjet printing machine according to claim 6, characterized in that, The top of the pipeline channel is also provided with multiple through holes, which are arranged at intervals along the circumference of the pipeline channel and located inside the through holes.

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