A new cooling circulation system suitable for open mill

By setting a liquid collecting cylinder inside the roller and connecting it to the inlet and outlet pipes, the problem of uneven roller cooling is solved, achieving uniform and efficient cooling of the roller and ensuring stable processing of the open mill.

CN224544996UActive Publication Date: 2026-07-24DALIAN AOQIAN GENERAL RUBBER&PLASTIC MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DALIAN AOQIAN GENERAL RUBBER&PLASTIC MACHINERY
Filing Date
2025-08-28
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing roller cooling methods suffer from uneven cooling and low heat exchange efficiency due to uncontrolled flow path of cooling water within the rollers. This results in an inability to quickly remove the heat accumulated in the rollers, affecting the efficient and stable processing of the open mill.

Method used

A liquid collecting cylinder is symmetrically arranged inside the roller. It is connected to the liquid collecting cylinder through the liquid inlet pipe and the liquid outlet pipe. The cooling liquid in the liquid collecting cylinder can be quickly replaced to maintain a low temperature and is in close contact with the roller for cooling. Combined with the design of the side fixing plate and the mounting plate, it is ensured that the liquid collecting cylinder is stably fixed inside the roller.

Benefits of technology

This achieves uniform and efficient cooling of the rollers, improves the cooling effect, avoids uneven local temperature distribution in the rollers, and ensures stable operation and processing efficiency of the open mill.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of open mill, disclose a novel cooling circulation system suitable for open mill, including open mill body, the inside symmetry of open mill body is provided with two roller, both sides of roller all are provided with side fixed disc, both ends of roller inside all are fixedly connected with bearing, the inside rotation of bearing is connected with the liquid collecting cylinder, the inside of liquid collecting cylinder is hollow design, the utility model discloses the symmetry of bearing is provided with in the front and rear both ends of roller inside, the inside rotation of bearing is provided with the liquid collecting cylinder, and the liquid collecting cylinder will not rotate with the rotation of roller, and the liquid collecting cylinder is linked with liquid inlet pipe and liquid outlet pipe respectively and each other, make the cooling liquid in the liquid collecting cylinder can replace fast, make the cooling liquid in the liquid collecting cylinder can keep low temperature all the time, effectively improved the effect that cools, and the liquid collecting cylinder is completely pasted with roller, can sufficiently carry out cooling work to roller, make cooling more uniform and efficient.
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Description

Technical Field

[0001] This utility model relates to the field of open mill technology, and in particular to a novel cooling circulation system suitable for open mills. Background Technology

[0002] The open mill is a basic piece of equipment for rubber and plastics processing. It crushes, mixes and plasticizes materials by using two counter-rotating rollers. It utilizes the temperature and speed difference between the rollers to make the materials undergo shear force to achieve a uniform mixing effect. The structure includes rollers, frame, transmission device, etc. It is widely used in the production of rubber products, cable materials, etc. Operation requires control of roller gap and temperature to ensure processing quality.

[0003] During the operation of an open mill, the rubber compound experiences intense friction against the roller surface under the rotating and extruding action of the front and rear rollers. Simultaneously, the rubber compound generates a large amount of internal heat due to shear force. This heat is continuously transferred to the inside of the rollers, causing the roller temperature to rise continuously. When the open mill operates at high temperatures for an extended period, the rubber compound on the roller surface will shrink unevenly due to uneven heating, leading to product curling. This curling phenomenon not only damages the shaping effect of the rubber compound, affecting the dimensional accuracy and appearance quality of the product, but may also cause the rubber compound to entangle and shift on the rollers, interfering with the normal operating rhythm of the open mill, reducing processing efficiency, and even potentially causing equipment failure due to uneven stress on the rubber compound, increasing production risks.

[0004] However, existing roller cooling methods mostly involve directly injecting cooling water into the roller. Because the flow path of the cooling water inside the roller is uncontrolled, local water flow speeds can easily become too fast or too slow, resulting in significant differences in the cooling degree of different areas of the roller and uneven cooling. At the same time, the heat exchange efficiency between the cooling water and the inner wall of the roller is low, and it cannot quickly remove the heat accumulated in the roller, resulting in poor cooling effect and making it difficult to meet the requirements of efficient and stable processing of open mills.

[0005] Therefore, it is necessary to invent a new cooling circulation system suitable for open mills to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a novel cooling circulation system suitable for open mills, in order to solve the problems mentioned in the background art. The existing roller cooling methods mostly involve directly injecting cooling water into the inside of the roller. Because the flow path of the cooling water inside the roller is uncontrolled, it is easy for the local water flow speed to be too fast or too slow, resulting in large differences in the cooling degree of different areas of the roller and uneven cooling. At the same time, the heat exchange efficiency between the cooling water and the inner wall of the roller is low, and it is not able to quickly remove the heat accumulated in the roller, resulting in poor cooling effect and difficulty in meeting the needs of efficient and stable processing of open mills.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a novel cooling circulation system suitable for an open mill, comprising an open mill body, two rollers symmetrically arranged on the inner side of the open mill body, side fixing plates provided on both sides of the rollers, bearings fixedly connected to both ends of the inner side of the rollers, and a liquid collecting cylinder rotatably connected to the inner side of the bearings.

[0008] The liquid collecting cylinder has a hollowed-out inner side and is closely attached to the inner wall of the roller. Both the front and rear ends of the inner side of the liquid collecting cylinder are provided with connecting pipes, and the two connecting pipes are respectively connected to the inlet pipe and the outlet pipe.

[0009] As a preferred embodiment, a rotating ring is fixedly connected to the side of the side fixing plate, a first through groove is provided on the inner side of the rotating ring, and an installation plate is fixedly connected to the other end of the side fixing plate, a second through groove is provided on the inner side of the installation plate, and the second through groove is corresponding to the first through groove.

[0010] As a preferred embodiment, internal threads are provided on the inner sides of both ends of the roller, and external threads are provided on the outer side of the mounting plate. The external threads are corresponding to the internal threads, and the mounting plate is connected to the inner side of the roller through the external threads.

[0011] As a preferred embodiment, a clamping disc is provided on one side of the mounting disc, and a rotating disc is provided on the other side of the clamping disc, with the rotating disc rotatably positioned inside the clamping disc.

[0012] As a preferred embodiment, a guide rod is fixedly connected to the side of the clamping disc near the mounting disc, and the guide rod is slidably connected to the inner side of the mounting disc.

[0013] As a preferred embodiment, multiple springs are evenly arranged between the clamping disc and the mounting disc, and the springs and guide rods are arranged alternately.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. This utility model features bearings symmetrically arranged at both ends of the inner side of the roller, with a liquid collecting cylinder rotatably mounted inside the bearings. The liquid collecting cylinder does not rotate with the roller and is connected to the inlet and outlet pipes, allowing for rapid replacement of the cooling liquid in the collecting cylinder. This ensures that the cooling liquid in the collecting cylinder remains at a low temperature, effectively improving the cooling effect. Furthermore, the collecting cylinder is fully fitted to the roller, allowing for thorough cooling of the roller and resulting in more uniform and efficient cooling.

[0016] 2. This utility model provides side fixing plates on both sides of the roller, with mounting plates fixedly connected to the sides of the side fixing plates. The external threads and internal threads on the outer side of the mounting plates correspond to each other, making it easy to fix the mounting plates to the inner side of the roller. At the same time, the sides of the mounting plates are provided with pressing discs and rotating discs, which can press against the sides of the liquid collecting cylinder, so that the liquid collecting cylinder is stably set on the inner side of the roller, improving the stability of the liquid collecting cylinder. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of one of the rollers in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the second roller in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the side fixing plate of this utility model;

[0021] Figure 5 This is a schematic diagram of the liquid collection cylinder in this utility model.

[0022] In the picture:

[0023] 1. Open mill body; 11. Roller; 111. Internal thread; 112. Bearing;

[0024] 2. Side fixing plate; 21. Rotating ring; 211. First through groove; 22. Mounting plate; 221. External thread; 222. Second through groove; 23. Pressing disc; 24. Rotating disc; 25. Guide rod; 26. Spring;

[0025] 3. Inlet pipe; 31. Outlet pipe;

[0026] 4. Liquid collecting cylinder; 41. Connecting pipe. Detailed Implementation

[0027] 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.

[0028] Please see the appendix Figure 1 - Appendix Figure 5A novel cooling circulation system suitable for open mills includes an open mill body 1. Two rollers 11 are symmetrically arranged on the inner side of the open mill body 1. Side fixing plates 2 are provided on both sides of the rollers 11. Bearings 112 are fixedly connected to both ends of the inner side of the rollers 11. A liquid collection cylinder 4 is rotatably connected to the inner side of the bearings 112.

[0029] The inner side of the liquid collecting cylinder 4 is hollowed out. The liquid collecting cylinder 4 is closely attached to the inner wall of the roller 11. Both the front and rear ends of the inner side of the liquid collecting cylinder 4 are provided with connecting pipes 41, and the two connecting pipes 41 are respectively connected to the liquid inlet pipe 3 and the liquid outlet pipe 31.

[0030] Specifically, bearings 112 are symmetrically arranged at the front and rear ends of the inner side of the roller 11. A liquid collecting cylinder 4 is rotatably arranged inside the bearings 112, and the liquid collecting cylinder 4 does not rotate with the roller 11. The liquid collecting cylinder 4 is interconnected with the inlet pipe 3 and the outlet pipe 31, allowing the cooling liquid in the liquid collecting cylinder 4 to be quickly replaced, keeping the cooling liquid in the liquid collecting cylinder 4 at a low temperature, effectively improving the cooling effect. At the same time, the liquid collecting cylinder 4 is completely in contact with the roller 11, which can fully cool the roller 11, making the cooling more uniform and efficient. Two connecting pipes 41 are provided, and the connecting pipes 41 are symmetrically arranged at the front and rear ends of the inner side of the liquid collecting cylinder 4, and symmetrically arranged on opposite sides. The two connecting pipes 41 are interconnected with the inlet pipe 3 and the outlet pipe 31, respectively. The inner side of the liquid collecting cylinder 4 has a hollow design, which allows the liquid to collect... The liquid cylinder 4 can contain coolant. The inlet pipe 3 and outlet pipe 31 are metal pipes. The liquid collecting cylinder 4 is also metal. The inlet pipe 3 and outlet pipe 31 can effectively limit the liquid collecting cylinder 4 and prevent it from rotating inside the roller 11. The bearing 112 is fixedly connected to the inside of the roller 11. The liquid collecting cylinder 4 is set inside the bearing 112, so the liquid collecting cylinder 4 can be rotatably set inside the bearing 112. Thus, the liquid collecting cylinder 4 and the roller 11 will maintain relative movement. When the liquid collecting cylinder 4 is fixed, the roller 11 will not drive the liquid collecting cylinder 4 to rotate. The inner side of the open mill body 1 is provided with a drive mechanism to drive the roller 11 to rotate. The inlet pipe 3 and outlet pipe 31 are connected to the external cooling equipment to facilitate the discharge of the high-temperature coolant in the liquid collecting cylinder 4 and the addition of new coolant for cooling.

[0031] Please see the appendix Figure 2 and Figure 4 A rotating ring 21 is fixedly connected to the side of the side fixing plate 2. A first through groove 211 is provided on the inner side of the rotating ring 21. An installation plate 22 is fixedly connected to the other end of the side fixing plate 2. A second through groove 222 is provided on the inner side of the installation plate 22. The second through groove 222 is correspondingly set with the first through groove 211.

[0032] Specifically, a rotating ring 21 is fixedly connected to the side of the side fixing plate 2. A first through groove 211 is provided on the inner side of the rotating ring 21. An installation plate 22 is fixedly connected to the other end of the side fixing plate 2. A second through groove 222 is provided on the inner side of the installation plate 22. The second through groove 222 is correspondingly provided with the first through groove 211. Thus, the side fixing plate 2, the rotating ring 21 and the installation plate 22 are all provided with cavities, which facilitates the insertion of the liquid inlet pipe 3 and the liquid outlet pipe 31 into the inner side of the roller 11 through the first through groove 211.

[0033] Please see the appendix Figure 3 and Figure 4 The inner sides of both ends of the roller 11 are provided with internal threads 111, and the outer side of the mounting plate 22 is provided with external threads 221. The external threads 221 are corresponding to the internal threads 111, and the mounting plate 22 is threaded to the inner side of the roller 11 through the external threads 221.

[0034] Specifically, internal threads 111 are provided on the inner side of both ends of the roller 11, and external threads 221 are provided on the outer side of the mounting plate 22. The external threads 221 are corresponding to the internal threads 111. The mounting plate 22 is threaded to the inner side of the roller 11 through the external threads 221, which facilitates the fixed connection of the side fixing plate 2 to the side of the roller 11.

[0035] Please see the appendix Figure 4 A pressing disc 23 is provided on one side of the mounting disc 22, and a rotating disc 24 is provided on the other side of the pressing disc 23. The rotating disc 24 is rotatably positioned inside the pressing disc 23.

[0036] Specifically, a pressing disc 23 is provided on one side of the mounting plate 22, and a rotating disc 24 is provided on the other side of the pressing disc 23. The rotating disc 24 is rotatably disposed inside the pressing disc 23, so that the pressing disc 23 and the rotating disc 24 can rotate relative to each other. When the pressing disc 23 and the rotating disc 24 are pressed against the side of the liquid collecting cylinder 4, when the side fixing disc 2 and the roller 11 rotate, the rotating disc 24 and the liquid collecting cylinder 4 remain relatively stationary. The side fixing disc 2 will drive the pressing disc 23 to rotate outside the rotating disc 24, so that the liquid collecting cylinder 4 will remain stationary.

[0037] Please see the appendix Figure 4 A guide rod 25 is fixedly connected to the side of the pressing disc 23 near the mounting disc 22. The guide rod 25 is slidably connected to the inner side of the mounting disc 22. Multiple springs 26 are evenly arranged between the pressing disc 23 and the mounting disc 22. The springs 26 and the guide rod 25 are arranged alternately.

[0038] Specifically, by setting guide rod 25, which is slidably connected to the inner side of mounting plate 22, and multiple springs 26 are evenly arranged between pressing disc 23 and mounting plate 22, with springs 26 and guide rod 25 arranged alternately. In actual use, when pressing disc 23 and rotating disc 24 are pressed against the side of liquid collecting cylinder 4, the guide rod 25 will retract into the inner side of mounting plate 22, and the springs 26 will be compressed. While the springs 26 are compressed, they will apply a reverse elastic force to pressing disc 23, thereby further pressing pressing disc 23 and rotating disc 24 against the side of liquid collecting cylinder 4, effectively pressing and fixing liquid collecting cylinder 4.

[0039] The working principle of this utility model is as follows: In practical use, when the roller 11 is working, it needs to be cooled. A liquid collecting cylinder 4 is provided on the inner side of the roller 11. The liquid collecting cylinder 4 is connected to the inlet pipe 3 and the outlet pipe 31 respectively. Both the inlet pipe 3 and the outlet pipe 31 are connected to external cooling equipment, which facilitates the discharge of high-temperature coolant in the liquid collecting cylinder 4 and the addition of new coolant for cooling. This allows the coolant in the liquid collecting cylinder 4 to be replaced quickly, keeping the coolant in the liquid collecting cylinder 4 at a low temperature, effectively improving the cooling effect. At the same time, the liquid collecting cylinder 4 is completely in contact with the roller 11, which can fully cool the roller 11, making the cooling more uniform and efficient. The inner side of the liquid collecting cylinder 4 has a hollow design. This allows the collecting cylinder 4 to contain coolant. The inlet pipe 3 and outlet pipe 31 are metal pipes, and the collecting cylinder 4 is also metal. The inlet pipe 3 and outlet pipe 31 can effectively limit the collecting cylinder 4, preventing it from rotating inside the roller 11. A bearing 112 is fixedly connected to the inside of the roller 11, and the collecting cylinder 4 is located inside the bearing 112. Thus, the collecting cylinder 4 can be rotatably located inside the bearing 112, so the collecting cylinder 4 and the roller 11 will maintain relative movement. When the collecting cylinder 4 is fixed, the roller 11 will not drive the collecting cylinder 4 to rotate when it rotates. A drive mechanism is provided inside the open mill body 1 to drive the roller 11 to rotate and complete the subsequent plastic mixing work.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel cooling circulation system suitable for an open mill, comprising an open mill body (1), wherein two rollers (11) are symmetrically arranged on the inner side of the open mill body (1), characterized in that: The roller (11) is provided with side fixing plates (2) on both sides, and bearings (112) are fixedly connected to both ends of the inner side of the roller (11). A liquid collecting cylinder (4) is rotatably connected to the inner side of the bearing (112). The inner side of the liquid collecting cylinder (4) is hollowed out. The liquid collecting cylinder (4) is closely attached to the inner wall of the roller (11). Both the front and rear ends of the inner side of the liquid collecting cylinder (4) are provided with connecting pipes (41). The two connecting pipes (41) are respectively connected to the liquid inlet pipe (3) and the liquid outlet pipe (31).

2. A novel cooling circulation system suitable for open mills according to claim 1, characterized in that: A rotating ring (21) is fixedly connected to the side of the side fixing plate (2). A first through groove (211) is provided on the inner side of the rotating ring (21). An installation plate (22) is fixedly connected to the other end of the side fixing plate (2). A second through groove (222) is provided on the inner side of the installation plate (22). The second through groove (222) is correspondingly provided to the first through groove (211).

3. A novel cooling circulation system suitable for open mills according to claim 2, characterized in that: The inner sides of both ends of the roller (11) are provided with internal threads (111), and the outer side of the mounting plate (22) is provided with external threads (221). The external threads (221) are corresponding to the internal threads (111), and the mounting plate (22) is threaded to the inner side of the roller (11) through the external threads (221).

4. A novel cooling circulation system suitable for open mills according to claim 3, characterized in that: A pressing disc (23) is provided on one side of the mounting disc (22), and a rotating disc (24) is provided on the other side of the pressing disc (23). The rotating disc (24) is rotatably disposed inside the pressing disc (23).

5. A novel cooling circulation system suitable for open mills according to claim 4, characterized in that: The clamping disc (23) is fixedly connected to a guide rod (25) on the side near the mounting disc (22), and the guide rod (25) is slidably connected to the inner side of the mounting disc (22).

6. A novel cooling circulation system suitable for an open mill according to claim 5, characterized in that: Multiple springs (26) are evenly arranged between the pressing disc (23) and the mounting disc (22), and the springs (26) and the guide rod (25) are arranged alternately.