An all-in-one ink supply and return tube

Abstract

The utility model relates to the technical field of ink supply pipeline, disclose an integral ink supply and ink return pipe, including ink supply pipe, ink return pipe and stainless steel cover, ink supply pipe and ink return pipe tube body parallelly arranged, ink supply pipe and ink return pipe all are through stainless steel cover and with stainless steel cover fixed connection form integral type structure, ink supply pipe end side wall is equipped with ink inlet hole, ink return pipe bottom end is equipped with ink return hole, the top of ink supply pipe and ink return pipe all are connected with quick plug connector, be equipped with eaves and vent hole on stainless steel cover. The utility model is made of stainless steel as a whole, integrates ink supply pipe and ink return pipe through stainless steel cover, need not special barrel cover, when changing the barrel, open the original sealing hole and insert, avoid the risk of pouring and simplify the operation, quick plug connector realizes quick butt joint, improves the efficiency of changing the barrel, ink return pipe bottom end structure prevents ink splashing, ink supply pipe bottom is closed, side surface is equipped with ink inlet hole, reduces ink residual waste and prevents blockage.

Description

Technical Field

[0001] This utility model belongs to the field of ink supply pipeline technology, specifically, it relates to an integrated ink supply and return pipeline. Background Technology

[0002] In the production processes of industries such as printing and packaging, automatic ink supply systems for water-based inks are key equipment for ensuring continuous production. Ink supply pipes and return pipes, as core components of ink transfer within the system, directly affect ink supply efficiency and production stability. These pipes are responsible for transporting water-based ink from ink containers to the ink supply system and returning excess ink from the system back to the containers. Their structural design and ease of use directly impact the smoothness of the entire production process.

[0003] During use, it was found that when using a 200-liter top-opening ink tank with a split ink supply and return pipe, multiple special opening-type tank lids are required. When changing tanks, operators need to replace the special tank lids and lock them, and then insert the two pipes one by one. The operation steps are numerous, and the unlocked tank lids are prone to causing the ink tank to tip over during transportation.

[0004] In view of this, this utility model is hereby proposed. Utility Model Content

[0005] To address the issues arising from the need for custom-made caps with multiple openings when using a split-type ink supply and return pipe for a 200-liter top-opening ink container, requiring operators to replace and lock these caps before inserting the two pipes one by one during container changes—a process involving numerous steps and the risk of the ink container tipping over during transport if the caps are not properly locked—this invention employs the following basic concept: An integrated ink supply and return tube includes an ink supply tube, an ink return tube, and a stainless steel cover. The ink supply tube and the ink return tube are arranged parallel to each other. Both the ink supply tube and the ink return tube pass through the stainless steel cover and are fixedly connected to the stainless steel cover to form an integrated structure. An ink inlet hole is opened on the side wall at the end of the ink supply tube, and an ink return hole is opened at the bottom end of the ink return tube. A quick-connect connector is connected to the top of both the ink supply tube and the ink return tube. The stainless steel cover is provided with an outer edge and a vent hole.

[0006] In a preferred embodiment of this utility model, the stainless steel cover has two mounting holes and two vent holes. The two vent holes are symmetrically distributed on both sides of the two mounting holes. The ink supply tube and the ink return tube are respectively inserted into the two mounting holes. The ink supply tube and the mounting hole wall, and the ink return tube and the mounting hole wall are fixed by welding.

[0007] In a preferred embodiment of this utility model, an end cap is installed at the bottom of the ink supply tube, and there are four ink inlet holes. The four ink inlet holes are evenly distributed along the side wall of the ink supply tube near the bottom end, and the four ink inlet holes are 5 cm long and 1 cm wide.

[0008] In a preferred embodiment of this utility model, the ink return hole is formed by cutting off half of the pipe wall axially along the center line of the pipe body at the bottom end of the ink return tube. The axial height of the ink return hole is 3 cm, and the opening of the ink return hole faces the ink supply pipe. The uncut portion at the bottom end of the ink return tube is cut at a 45-degree angle, and the cut end is sealed by welding with a sealing piece.

[0009] In a preferred embodiment of this utility model, the outer edge of the stainless steel cover is an annular flange extending outward along the outer circumference of the stainless steel cover. The outer diameter of the outer edge is larger than the diameter of the sealing hole on the ink barrel, and the outer diameter of the main body of the stainless steel cover is adapted to the diameter of the sealing hole.

[0010] In a preferred embodiment of this utility model, the length of the ink supply tube is greater than the length of the ink return tube.

[0011] Compared with the prior art, the present invention has the following advantages: This utility model is made entirely of stainless steel. The ink supply tube and the ink return tube are integrated by a stainless steel cover, eliminating the need for a special barrel cover. When changing barrels, simply open the original sealing hole and insert the tube, avoiding the risk of tipping and simplifying the operation. The quick-connect connector enables rapid docking and improves barrel changing efficiency. The bottom structure of the ink return tube prevents ink splashing. The bottom of the ink supply tube is sealed and the side has an ink inlet hole, which reduces ink residue waste and prevents clogging.

[0012] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0013] In the attached diagram: Figure 1 This is a schematic diagram of the installation of an integrated ink supply and return tube; Figure 2 For an integrated ink supply and return tube Figure 1 Enlarged view of point A in the middle; Figure 3 For an integrated ink supply and return tube Figure 1 Enlarged view at point B; Figure 4 A three-dimensional diagram of an integrated ink supply and return tube; Figure 5 A 3D drawing of a stainless steel cover for an integrated ink supply and return tube.

[0014] In the diagram: 1. Ink supply tube; 11. End cap; 12. Ink inlet hole; 2. Ink return tube; 21. Ink return hole; 22. Sealing plate; 3. Stainless steel cover; 31. Outer edge; 32. Mounting hole; 33. Vent hole; 4. Quick connector; 5. Ink tank; 51. Sealing hole; 6. Liquid level. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0016] like Figures 1 to 5 As shown, an integrated ink supply and return pipe includes an ink supply pipe 1, an ink return pipe 2, and a stainless steel cover 3. The ink supply pipe 1 and the ink return pipe 2 are arranged parallel to each other. Both the ink supply pipe 1 and the ink return pipe 2 pass through the stainless steel cover 3 and are fixedly connected to the stainless steel cover 3 to form an integrated structure. An ink inlet hole 12 is opened on the side wall at the end of the ink supply pipe 1, and an ink return hole 21 is opened at the bottom of the ink return pipe 2. Quick-connect connectors 4 are connected to the top of both the ink supply pipe 1 and the ink return pipe 2. The stainless steel cover 3 is provided with an outer edge 31 and a vent hole 33. In this configuration, the stainless steel cover 3 integrates the ink supply pipe 1 and the ink return pipe 2 into a stable integrated structure. The ink supply pipe 1 draws in ink through the ink inlet hole 12, and the ink return pipe 2 completes the ink return through the ink return hole 21. The quick-connect connector 4 allows the two ink pipes to be quickly connected to the ink supply system. The outer edge 31 of the stainless steel cover 3 is used for positioning the overall structure, and the vent hole 33 maintains the air pressure balance inside and outside the container to ensure smooth ink flow.

[0017] like Figures 1 to 5 As shown, in a specific embodiment, the stainless steel cover 3 has two mounting holes 32 and two vent holes 33. The two vent holes 33 are symmetrically distributed on both sides of the two mounting holes 32. The ink supply pipe 1 and the ink return pipe 2 are respectively inserted into the two mounting holes 32. The ink supply pipe 1 and the wall of the mounting hole 32 are fixed by welding. In this configuration, the mounting holes 32 on the stainless steel cover 3 provide mounting positions for the ink supply pipe 1 and the ink return pipe 2, and the vent holes 33 provide air pressure conditions for the normal operation of the ink supply pipe 1 and the ink return pipe 2.

[0018] like Figures 1 to 5 As shown, furthermore, an end cap 11 is installed at the bottom of the ink supply tube 1, and there are four ink inlet holes 12. The four ink inlet holes 12 are evenly distributed circumferentially along the side wall of the ink supply tube 1 near the bottom end, and the four ink inlet holes 12 are 5 cm long and 1 cm wide. In this configuration, the end cap 11 at the bottom of the ink supply tube 1 can prevent impurities at the bottom of the container from directly entering the tube, and the four ink inlet holes 12 evenly distributed circumferentially are located above the end cap 11 to avoid clogging the channels at the bottom of the container, while maximizing the utilization of the ink in the container.

[0019] like Figures 1 to 5As shown, further, the ink return hole 21 is formed by cutting off half of the pipe wall axially along the center line of the pipe body from the bottom end of the ink return tube 2. The axial height of the ink return hole 21 is 3 cm, and the opening of the ink return hole 21 faces the ink supply tube 1. The uncut portion at the bottom end of the ink return tube 2 is cut at a 45-degree angle, and the cut end is sealed by welding with a sealing piece 22. In this configuration, the structure at the bottom end of the ink return tube 2 ensures that the opening of the ink return hole 21 faces the ink supply tube 1. The 45-degree angled portion cooperates with the sealing piece 22 to guide the return ink to flow towards the outer wall of the ink supply tube 1, avoiding the splashing problem caused by direct ink dripping, and allowing the return ink to flow smoothly back into the container along the ink supply tube 1.

[0020] like Figures 1 to 5 As shown, further, the outer edge 31 of the stainless steel cover 3 is an annular flange extending outward along the outer circumference of the stainless steel cover 3. The outer diameter of the outer edge 31 is larger than the diameter of the sealing hole 51 on the ink tank 5, and the outer diameter of the main body of the stainless steel cover 3 is adapted to the diameter of the sealing hole 51. In this setting, the matching dimensions of the main body of the stainless steel cover 3 and the sealing hole 51 ensure that the cover is embedded in the hole and positioned. The outer edge 31 rests on the top surface of the lid of the ink tank 5, limiting the insertion depth of the overall structure, so that the ink supply pipe 1 and the ink return pipe 2 can maintain a vertical and stable state, avoiding pipe shaking that affects the ink supply and return effects.

[0021] like Figures 1 to 5 As shown, the length of the ink supply pipe 1 is greater than the length of the ink return pipe 2. In this configuration, the ink supply pipe 1 reaches the bottom of the ink tank 5 to ensure full utilization of the ink in the tank, while the ink return hole 21 of the ink return pipe 2 is always located above the liquid surface 6 in the tank to avoid the ink return pipe 2 being immersed in the ink and causing a siphon effect.

[0022] The implementation principle of the integrated ink supply and return pipe in this embodiment is as follows: In use, firstly, open the sealing hole 51 on the lid of the ink tank 5, and insert the entire structure into the sealing hole 51 through the stainless steel cover 3. Since the outer diameter of the outer edge 31 of the stainless steel cover 3 is larger than the diameter of the sealing hole 51, the outer edge 31 will overlap the top surface of the lid of the ink tank 5. The ink supply pipe 1, because its length is greater than that of the return pipe 2, reaches the bottom of the ink tank 5. The return pipe 2 is located above the liquid surface 6 inside the ink tank 5, avoiding the siphon effect caused by being immersed below the liquid surface 6. Then, connect the quick-connect connectors 4 at the top of the ink supply pipe 1 and the return pipe 2 to the corresponding interfaces of the ink supply system to complete the ink path connection. The two vent holes 33 on the stainless steel cover 3 can maintain the atmospheric pressure balance inside and outside the ink tank 5, providing conditions for ink flow. During the ink supply process, the negative pressure generated by the ink supply system forces the ink in the ink tank 5 into the ink supply tube 1 through the four ink inlet holes 12 on the bottom side wall of the ink supply tube 1, and then delivers it to the ink supply system. The four ink inlet holes 12 are evenly distributed circumferentially and located above the end cap 11, which avoids clogging the channels at the bottom of the tank and maximizes the utilization of the ink in the tank. When the ink in the ink supply system needs to be returned, the returned ink enters the tube body through the top of the return ink tube 2 and finally flows out from the return ink hole 21 at the bottom. Since the opening of the return ink hole 21 faces the ink supply tube 1, and the bottom part of the return ink tube 2 is cut at a 45-degree angle and sealed with a sealing piece 22, the returned ink will first flow to the outer wall of the ink supply tube 1, and then flow smoothly down the outer wall of the ink supply tube 1 into the ink tank 5, preventing ink splashing. When the ink in ink tank 5 is exhausted and needs to be replaced, simply unplug the quick-connect connector 4, remove the entire ink supply and return tube from the sealing hole 51, replace the ink tank 5, and repeat the above placement and connection steps. The operation is convenient and efficient.

Claims

1. An integrated ink supply and return tube comprising an ink supply tube (1), an ink return tube (2) and a stainless steel cover (3), characterized in that, The ink supply tube (1) and the ink return tube (2) are arranged in parallel. The ink supply tube (1) and the ink return tube (2) both pass through the stainless steel cover (3) and are fixedly connected to the stainless steel cover (3) to form an integral structure. The ink supply tube (1) has an ink inlet hole (12) on the side wall at the end. The ink return tube (2) has an ink return hole (21) at the bottom end. The top of the ink supply tube (1) and the ink return tube (2) are both connected to quick-connect connectors (4). The stainless steel cover (3) has an outer edge (31) and a vent hole (33).

2. An integrated ink supply and return tube according to claim 1, wherein, The stainless steel cover (3) has two mounting holes (32) and two ventilation holes (33). The two ventilation holes (33) are symmetrically distributed on both sides of the two mounting holes (32). The ink supply pipe (1) and the ink return pipe (2) are respectively inserted into the two mounting holes (32). The ink supply pipe (1) is fixed to the wall of the mounting hole (32), and the ink return pipe (2) is fixed to the wall of the mounting hole (32) by welding.

3. The one-piece ink feed and return tube of claim 1, wherein, The ink supply tube (1) is equipped with an end cap (11) at the bottom end. There are four ink inlet holes (12). The four ink inlet holes (12) are evenly distributed along the side wall of the ink supply tube (1) near the bottom end. The four ink inlet holes (12) are 5 cm long and 1 cm wide.

4. The one-piece ink feed and return tube of claim 1, wherein, The ink return hole (21) is formed by cutting off half of the pipe wall along the center line of the pipe body at the bottom end of the ink return pipe (2). The axial height of the ink return hole (21) is 3 cm, and the opening of the ink return hole (21) faces the ink supply pipe (1). The uncut part of the bottom end of the ink return pipe (2) is cut at a 45-degree angle, and the cut end is sealed by welding with a sealing piece (22).

5. The one-piece ink feed and return tube of claim 1, wherein, The outer edge (31) of the stainless steel cover (3) is an annular flange extending outward along the outer periphery of the stainless steel cover (3). The outer diameter of the outer edge (31) is larger than the diameter of the sealing hole (51) on the ink barrel (5). The outer diameter of the main body of the stainless steel cover (3) is adapted to the diameter of the sealing hole (51).

6. The one-piece ink feed and return tube of claim 1, wherein, The length of the ink supply tube (1) is greater than the length of the ink return tube (2).

Images