An ink cooling device

CN224476732UActive Publication Date: 2026-07-10GUANGZHOU XUCHENG ELECTRONICS TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU XUCHENG ELECTRONICS TECH
Filing Date
2025-08-29
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing ink cooling devices for printing presses suffer from insufficient cooling efficiency, uneven temperature distribution, and energy waste in cooling high-viscosity inks, failing to meet the stability and color consistency requirements of high-speed printing.

Method used

An ink cooling device was designed, which uses multiple sets of annularly arranged connecting pipes and heat-conducting pipes to form a dense heat exchange network. Combined with a stirring rod for forced circulation, active and uniform heat exchange is achieved through a liquid separation structure. The gear-driven rotating ring drives the stirring rod to perform dynamic mixing, thereby increasing the contact area and uniformity between the ink and the cooling medium.

Benefits of technology

It significantly improves ink cooling efficiency and temperature uniformity, ensuring continuous and stable cooling of the ink during flow, reducing viscosity, and improving printing quality and equipment stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an ink cooling device, relating to the field of ink cooling technology. It includes an ink storage tank and a cooling cylinder. An output pump is fixedly connected to the inner side of the ink storage tank. A dispensing mechanism is installed between the cooling cylinder and the ink storage tank. An inlet pipe and an outlet pipe are fixedly connected to the outside of the cooling cylinder. A cooler is fixedly connected to the outside of the cooling cylinder. A rotating ring is rotatably connected to the inner side of the cooling cylinder, and a gear ring is fixedly connected to the outside of the rotating ring. A mounting base is fixedly connected to the outside of the cooling cylinder, and a connecting groove is provided at the connection between the mounting base and the cooling cylinder. The rotating mechanism is installed inside the mounting base, and a stirring rod is fixedly connected to the upper side of the rotating ring. This device employs a multi-pipe diversion design to expand the ink heat exchange area. Combined with forced agitation to break up water temperature stratification, the heat exchange path is extended through annularly arranged heat-conducting pipes to enhance cooling intensity. Gear-driven stirring rods achieve dynamic temperature balance, enabling efficient cooling of the ink in a constant low-temperature environment and significantly reducing viscosity.
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Description

Technical Field

[0001] This utility model relates to the field of ink supply cooling technology, specifically to an ink supply cooling device. Background Technology

[0002] In the field of high-speed printing equipment, ink temperature control directly affects printing quality and equipment stability. The current mainstream solutions use single-channel circulating water cooling or direct contact cooling with semiconductor cooling chips. Although these solutions can achieve basic cooling, they generally suffer from insufficient cooling efficiency and uneven temperature distribution when dealing with high-viscosity specialty inks. As industrial printing develops towards higher speeds, the market is placing higher demands on the precision of ink constant temperature control and the ability to dynamically adjust viscosity.

[0003] Most existing ink cooling devices for printing presses use an ink tank connected to a single cooling pipe. The ink is delivered to a cylindrical cooling chamber via a built-in water pump, and the chamber is cooled by an external cooling plate. This device relies on the fixed power output of the water pump and cannot adjust the flow rate according to the characteristics of the ink. Furthermore, there is no active mixing structure in the cooling chamber, and heat exchange is carried out solely by natural convection.

[0004] However, the aforementioned existing technologies have revealed significant defects in application. First, the single-pipe design results in a limited contact area between the ink and the cooling medium, and high-viscosity inks are prone to forming local high-temperature zones due to insufficient heat exchange. Second, the passive cooling method causes severe water temperature stratification in the cooling cylinder, with the cold end of the cooling element prone to freezing while the temperature drop at the far end is weak, resulting in energy waste. These shortcomings seriously restrict the stability and color consistency of high-speed printing.

[0005] Based on this, the present invention designs an ink cooling device to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an ink cooling device.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An ink cooling device includes an ink storage tank and a cooling cylinder, as well as a dispensing mechanism and a rotating mechanism. An output pump is fixedly connected to the inner side of the ink storage tank, and an output pipe is fixedly connected to the outer side of the output pump. The dispensing mechanism is installed between the cooling cylinder and the ink storage tank. An inlet pipe and an outlet pipe are fixedly connected to the outer side of the cooling cylinder. A cooler is fixedly connected to the outer side of the cooling cylinder. A rotating ring is rotatably connected to the inner side of the cooling cylinder, and a toothed ring is fixedly connected to the outer side of the rotating ring. A mounting base is fixedly connected to the outer side of the cooling cylinder. A connecting groove is formed at the connection between the mounting base and the cooling cylinder, and the position of the connecting groove matches that of the toothed ring. The rotating mechanism is installed inside the mounting base, and an agitator is fixedly connected to the upper side of the rotating ring.

[0009] Furthermore, a replenishment tube is fixedly connected to the upper side of the ink storage box, and a sealing cap is threaded to the top of the replenishment tube. Two sets of symmetrically arranged connecting plates are fixedly connected to the upper side of the ink storage box.

[0010] Furthermore, the liquid distribution mechanism includes connecting pipes, heat-conducting pipes, and a distribution seat. The connecting pipes are fixedly connected to both ends of the cooling cylinder, and there are several sets of connecting pipes arranged in a ring. The heat-conducting pipes are fixedly connected between two corresponding sets of connecting pipes. The distribution seat is fixedly connected to the top of the multiple sets of connecting pipes, and the end of the output pipe is fixedly connected to the upper side of the distribution seat. The distribution seat has a hollow structure, and both the output pipe and the connecting pipes are connected to the inner side of the distribution seat.

[0011] Furthermore, both the inlet and outlet pipes are threaded at their ends, the hot end of the cooler is located outside the cooling cylinder, and the cold end of the cooler is located inside the cooling cylinder.

[0012] Furthermore, a slot is provided on the inner side of the cooling cylinder, and a retaining ring is fixedly connected to the outside of the rotating ring, with the retaining ring being slidably connected to the inner side of the slot.

[0013] Furthermore, the rotating mechanism includes a rotating shaft and a gear. A drive motor is fixedly connected to the upper side of the mounting base. The rotating shaft is rotatably connected to the inner side of the mounting base and is fixedly connected to one side of the output shaft of the drive motor. The gear is fixedly connected to the outside of the rotating shaft and passes through the connecting groove and meshes with the gear ring.

[0014] Furthermore, the number of agitators is several groups arranged in a ring.

[0015] Furthermore, the cooling cylinder has multiple sets of connecting holes arranged in a ring at both ends.

[0016] Compared with the prior art, the advantages of this utility model are as follows: 1. The ink cooling device forms a dense heat exchange network through multiple sets of annularly arranged connecting pipes and heat conduction pipes, which significantly expands the contact area between the ink and the cooling medium. Combined with the agitator rod to force circulation, the cooling water temperature is evenly distributed, which effectively improves the heat exchange efficiency, ensures that the ink continues to cool down stably during the flow process, avoids local overheating or insufficient cooling, thereby reducing the ink viscosity and improving the stability of printing quality.

[0017] 2. This ink cooling device adopts a liquid-distribution structure to divert ink to multiple pipes for simultaneous cooling. In conjunction with a gear-driven rotating ring that drives a stirring rod to dynamically mix the cooling water, it achieves active and uniform heat exchange. This solves the problems of small contact area and low efficiency of passive heat exchange in traditional single-pipe cooling systems, ensuring that inks of different viscosities can be adequately cooled and meeting the precise temperature control requirements of high-speed printing. Attached Figure Description

[0018] 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 these drawings without creative effort.

[0019] Figure 1 This is a perspective view of an ink cooling device according to the present invention;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a front sectional view of the present invention;

[0022] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0023] Figure 5 for Figure 1 Enlarged view of point C in the middle;

[0024] Figure 6 for Figure 3 Enlarged view of point D in the middle.

[0025] The labels in the diagram represent:

[0026] 1. Ink reservoir; 2. Cooling cylinder; 3. Replenishment pipe; 4. Connecting plate; 5. Output pump; 6. Output pipe; 7. Connecting pipe; 8. Heat conduction pipe; 9. Distributor seat; 10. Water inlet pipe; 11. Water outlet pipe; 12. Cooler; 13. Rotating ring; 14. Slot; 15. Snap ring; 16. Gear ring; 17. Mounting seat; 18. Connecting groove; 19. Drive motor; 20. Rotating shaft; 21. Gear; 22. Stirring rod; 23. Connecting hole. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-6 An ink cooling device includes an ink storage box 1 and a cooling cylinder 2. The ink storage box 1 serves as the basic container for ink storage and supply, and its sealing structure can prevent ink evaporation and contamination. The cooling cylinder 2 serves as the core cooling component. Multiple sets of annularly arranged connection holes 23 are opened at both ends of the cooling cylinder 2. These evenly distributed connection holes 23 ensure that the cooling cylinder 2 can be stably installed.

[0029] A replenishment tube 3 is fixedly connected to the upper side of the ink storage tank 1. The replenishment tube 3 serves as an ink replenishment channel, and a sealing cap is threaded to its top. This detachable sealing design facilitates ink addition and effectively prevents impurities from entering. Two sets of symmetrically arranged connecting plates 4 are fixedly connected to the upper side of the ink storage tank 1. An output pump 5 is fixedly connected to the inner side of the ink storage tank 1. The output pump 5 serves as a power source, and its adjustable speed design meets different flow requirements. An output tube 6 is fixedly connected to the outer side of the output pump 5. The output tube 6 serves as an ink delivery channel, and its corrosion-resistant material ensures long-term reliability.

[0030] The dispensing mechanism is installed between the cooling cylinder 2 and the ink storage tank 1. The dispensing mechanism includes a connecting pipe 7, a heat-conducting pipe 8, and a dispensing seat 9. The connecting pipe 7 serves as a dispensing channel, and its multi-channel design significantly increases the heat exchange area. The connecting pipe 7 is fixedly connected to both ends of the cooling cylinder 2, and there are several sets of connecting pipes 7 arranged in a ring. This ring arrangement ensures uniform cooling. The heat-conducting pipe 8 is fixedly connected between two corresponding sets of connecting pipes 7. The heat-conducting pipe 8 serves as a heat exchange medium, and its high thermal conductivity material improves the heat exchange efficiency. The dispensing seat 9 is fixedly connected to the top of the multiple sets of connecting pipes 7, and the end of the output pipe 6 is fixedly connected to the upper side of the dispensing seat 9. The dispensing seat 9 serves as the dispensing center, and its internal flow channel optimization design ensures uniform dispensing. The dispensing seat 9 has a hollow structure, and the output pipe 6 and the connecting pipe 7 are connected to the inner side of the dispensing seat 9. This interconnection design enables unobstructed ink flow.

[0031] The cooling cylinder 2 is externally fixedly connected to an inlet pipe 10 and an outlet pipe 11. The inlet pipe 10 serves as the cooling water inlet, and the outlet pipe 11 serves as the cooling water outlet. The two work together to achieve cooling water circulation. The ends of both the inlet pipe 10 and the outlet pipe 11 are threaded. This threaded connection method facilitates quick assembly and disassembly of the pipes. The cooling cylinder 2 is externally fixedly connected to a cooler 12. The cooler 12 serves as the core cooling element. Its semiconductor cooling chip achieves precise temperature control. The hot end of the cooler 12 is located outside the cooling cylinder 2, and the cold end of the cooler 12 is located inside the cooling cylinder 2. This layout design ensures effective heat dissipation.

[0032] A rotating ring 13 is rotatably connected to the inner side of the cooling cylinder 2. The rotating ring 13 serves as a transmission carrier, and its annular structure ensures smooth operation. A slot 14 is provided on the inner side of the cooling cylinder 2. The slot 14 serves as a guide structure, and its precise dimensions ensure the movement trajectory. A retaining ring 15 is fixedly connected to the outside of the rotating ring 13, and the retaining ring 15 is limited and slidably connected to the inside of the slot 14. This matching design enables the stable operation of the rotating ring 13. A toothed ring 16 is fixedly connected to the outside of the rotating ring 13. The toothed ring 16 serves as a transmission component, and its precise tooth profile ensures meshing accuracy. A mounting base 17 is fixedly connected to the outside of the cooling cylinder 2. The mounting base 17 serves as a support base, and its rigid structure ensures the stability of the component. A connecting groove 18 is provided at the connection between the mounting base 17 and the cooling cylinder 2, and the position of the connecting groove 18 matches that of the toothed ring 16. This matching design enables effective power transmission.

[0033] The rotating mechanism is installed inside the mounting base 17. The rotating mechanism includes a rotating shaft 20 and a gear 21. The rotating shaft 20 serves as a power transmission shaft, and its precision bearings ensure smooth rotation. A drive motor 19 is fixedly connected to the upper side of the mounting base 17. The drive motor 19 serves as a power source, and its adjustable speed design meets different stirring requirements. The rotating shaft 20 is rotatably connected to the inside of the mounting base 17 and is fixedly connected to one side of the output shaft of the drive motor 19. This direct connection ensures lossless power transmission. The gear 21 is fixedly connected to the outside of the rotating shaft 20 and passes through the connecting groove 18 and meshes with the gear ring 16. This meshing transmission achieves smooth power conversion.

[0034] A stirring rod 22 is fixedly connected to the upper side of the rotating ring 13. The stirring rod 22 serves as a mixing element and is designed to generate a turbulence effect. There are several groups of stirring rods 22 arranged in a ring. This ring array arrangement achieves uniform mixing in all directions.

[0035] In this embodiment, when the ink cooling device is working, the ink in the ink storage tank 1 is pressurized by the output pump 5 on the inner side and delivered to the distribution seat 9 through the output pipe 6, so that the ink is evenly distributed into multiple sets of connecting pipes 7 arranged in a ring. At the same time, the heat-conducting pipes 8 form a heat exchange network between adjacent connecting pipes 7. This multi-pipe diversion design significantly increases the contact area between the ink and the cooling medium. When the cooler 12 outside the cooling cylinder 2 is started, its cold end generates a low-temperature environment inside the cylinder. Cooling water is continuously injected into the cylinder through the threaded water inlet pipe 10. When flowing through the heat-conducting pipes 8, it performs efficient heat exchange on the ink being transported in parallel. Finally, the heated cooling water is discharged from the water outlet pipe 11. This structure significantly improves the cooling intensity and uniformity of the ink by increasing the heat exchange area and extending the heat exchange path, and effectively reduces the viscosity of the ink.

[0036] During water cooling, the drive motor 19 drives the rotating shaft 20 to rotate. The gear 21 fixed to the end of the shaft passes through the connecting groove 18 of the mounting base 17 and meshes with the gear ring 16 on the outer periphery of the rotating ring 13. The rotating ring 13 achieves stable rotation through the limiting sliding cooperation between the retaining ring 15 and the retaining groove 14 on the inner side of the cooling cylinder 2. This drives the ring-arranged stirring rods 22 to continuously stir the cooling water. This forced convection mechanism breaks the water temperature stratification phenomenon, ensures that the water temperature is evenly distributed throughout the cooling cylinder 2, avoids the decrease in heat exchange efficiency caused by local overheating or overcooling, and ensures that the ink is always uniformly cooled in a constant low temperature environment. The connecting holes 23 on both sides of the ink storage box 1 and the replenishment pipe 3 on the top ensure the installation expandability of the system and the convenience of ink replenishment.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An ink cooling device, comprising an ink storage tank (1) and a cooling cylinder (2), characterized in that: It also includes a liquid dispensing mechanism and a rotating mechanism. An output pump (5) is fixedly connected to the inner side of the ink storage tank (1). An output pipe (6) is fixedly connected to the outside of the output pump (5). The liquid dispensing mechanism is installed between the cooling cylinder (2) and the ink storage tank (1). An inlet pipe (10) and an outlet pipe (11) are fixedly connected to the outside of the cooling cylinder (2). A cooler (12) is fixedly connected to the outside of the cooling cylinder (2). A rotating ring (13) is rotatably connected to the inner side of the cooling cylinder (2). A toothed ring (16) is fixedly connected to the outside of the rotating ring (13). A mounting base (17) is fixedly connected to the outside of the cooling cylinder (2). A connecting groove (18) is provided at the connection between the mounting base (17) and the cooling cylinder (2). The position of the connecting groove (18) matches that of the toothed ring (16). The rotating mechanism is installed on the inner side of the mounting base (17). A stirring rod (22) is fixedly connected to the upper side of the rotating ring (13).

2. The ink supply cooling device according to claim 1, characterized in that, The upper side of the ink storage box (1) is fixedly connected to a replenishing tube (3), and the top of the replenishing tube (3) is threadedly connected to a sealing cap. The upper side of the ink storage box (1) is fixedly connected to two sets of symmetrically arranged connecting plates (4).

3. The ink supply cooling device according to claim 1, characterized in that, The liquid distribution mechanism includes a connecting pipe (7), a heat-conducting pipe (8), and a distribution seat (9). The connecting pipe (7) is fixedly connected to both ends of the cooling cylinder (2), and there are several sets of connecting pipes (7) arranged in a ring. The heat-conducting pipe (8) is fixedly connected between two corresponding sets of connecting pipes (7). The distribution seat (9) is fixedly connected to the top of multiple sets of connecting pipes (7), and the end of the output pipe (6) is fixedly connected to the upper side of the distribution seat (9). The distribution seat (9) is a hollow structure, and the output pipe (6) and the connecting pipe (7) are both connected to the inner side of the distribution seat (9).

4. The ink supply cooling device according to claim 1, characterized in that, The inlet pipe (10) and outlet pipe (11) are both threaded at their ends. The hot end of the cooler (12) is located outside the cooling cylinder (2), and the cold end of the cooler (12) is located inside the cooling cylinder (2).

5. The ink supply cooling device according to claim 1, characterized in that, The cooling cylinder (2) has a slot (14) on its inner side, and a retaining ring (15) is fixedly connected to the outside of the rotating ring (13), and the retaining ring (15) is slidably connected to the inner side of the slot (14).

6. The ink supply cooling device according to claim 1, characterized in that, The rotating mechanism includes a rotating shaft (20) and a gear (21). A drive motor (19) is fixedly connected to the upper side of the mounting base (17). The rotating shaft (20) is rotatably connected to the inner side of the mounting base (17) and is fixedly connected to one side of the output shaft of the drive motor (19). The gear (21) is fixedly connected to the outside of the rotating shaft (20) and passes through the connecting groove (18) and meshes with the gear ring (16).

7. The ink supply cooling device according to claim 1, characterized in that, The number of stirring rods (22) is several groups arranged in a ring.

8. The ink supply cooling device according to claim 1, characterized in that, The cooling cylinder (2) has multiple sets of connecting holes (23) arranged in a ring at both ends.