Rubber sheet rolling and cooling device

Abstract

The utility model discloses a rubber sheet rolling and cooling device which comprises a supporting pipe horizontally and fixedly installed on a vertically-arranged supporting frame, a heat exchange cylinder coaxially and rotatably sleeved on the supporting pipe, a liquid feeding pipe and a liquid returning pipe, and the liquid feeding pipe and the liquid returning pipe are arranged in the supporting pipe. The inner barrel is located in the heat exchange barrel, an annular cavity is formed between the inner barrel and the inner wall of the heat exchange barrel, the liquid feeding pipe and the liquid returning pipe communicate with the annular cavity, the two ends of the heat exchange barrel are coaxially and fixedly connected with rotating supporting discs rotationally arranged on the supporting pipes, and sealing structures are arranged between the rotating supporting discs and the heat exchange barrel. The effect of improving the operation stability and the cooling performance of the cooling device is achieved.

Description

Technical Field

[0001] This utility model relates to the field of roller pressing device technology, and in particular to a rubber sheet roller pressing and cooling device. Background Technology

[0002] Rubber sheets are heated after passing through a cold-feed extruder or open mill, and then calendered through a three-roll calender to form sheets of the required width and thickness. Because hot rubber sheets are prone to shrinkage, the calendered sheets need to be cooled rapidly to minimize shrinkage. A rubber sheet roll cooling device can effectively cool the rubber sheets.

[0003] Existing roller cooling devices directly deliver cooling water into the cooling roller, and heat exchange is achieved by wrapping the cooling roller with rubber sheets. Although this heat exchange method can save water resources, during the process of the rubber sheets wrapping the roller, since the cooling roller is connected to water inlet and outlet pipes and is fixedly arranged, it is necessary to ensure that the surface of the cooling roller is smooth enough during cooling. If material residue appears on the cooling roller due to surface wear, it will lead to a reduction in cooling efficiency. Summary of the Invention

[0004] The technical problem to be solved by this utility model is that the cooling roller cannot rotate, which makes it easy to wear during the material feeding process, and there is a situation where material remains on the surface of the cooling roller, which in turn reduces the cooling efficiency of the cooling roller.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a rubber sheet roller cooling device, including a support pipe horizontally fixedly installed on a vertically arranged support frame, a heat exchange cylinder coaxially rotatably mounted on the support pipe, and a liquid delivery pipe and a liquid return pipe arranged inside the support pipe. An inner cylinder is fixedly mounted on the heat exchange cylinder, the inner cylinder is located inside the heat exchange cylinder and an annular cavity is provided between the inner cylinder and the inner wall of the heat exchange cylinder. The liquid delivery pipe and the liquid return pipe are both connected to the annular cavity. Both ends of the heat exchange cylinder are coaxially fixedly connected to a rotating support disk rotatably arranged on the support pipe, and a sealing structure is provided between the rotating support disk and the heat exchange cylinder.

[0006] Preferably, the support frame is provided with two rows of support tubes, and the rubber sheet is wound in an S-shape between the heat exchange cylinders.

[0007] Preferably, one end of the heat exchange cylinder is a sealed end, and the other end is connected to an annular sealing cover by bolts. The movable end of the sealing cover is coaxially fixedly connected to the rotating support disk. The sealing structure is located at the docking end of the rotating support disk and the sealing cover. Both the docking ends of the rotating support disk and the sealing cover are provided with annular grooves. The sealing structure is a sealing ring fixedly arranged in the sealing groove.

[0008] Preferably, the two end walls of the inner cylinder are respectively fitted to the inner end wall of the sealing end of the heat exchange cylinder and the end wall of the sealing cover. An annular groove is coaxially formed on the end of the inner cylinder. Corresponding matching grooves are formed on the end walls of the heat exchange cylinder and the sealing cover. A sealing ring in a compressed state is accommodated between the annular groove and the matching groove.

[0009] Preferably, a connecting pipe is fixedly provided radially between the support pipe and the inner cylinder, and the liquid delivery pipe and the liquid return pipe are both connected to branch pipes at equal intervals. The branch pipes are fixed inside the connecting pipe and communicate with the annular cavity.

[0010] Preferably, the branch of the liquid delivery pipe is arranged below the branch of the liquid return pipe.

[0011] Preferably, the inner wall of the heat exchange cylinder is provided with annular heat exchange plates at equal intervals along the axial direction.

[0012] Preferably, the support frame is provided with two connecting plates, and one end of the support tube passes through the two connecting plates and is fixedly connected to the connecting plates.

[0013] This utility model provides a rubber sheet roller cooling device. A support frame is set up to fix the support tube, and the heat exchange cylinder is rotatably installed on the support tube. Coolant is delivered to the gap between the heat exchange cylinder and the inner cylinder through the liquid delivery pipe, and the coolant is recovered through the liquid return pipe to realize the circulation of coolant. The rubber sheet is wound around the heat exchange cylinder. During the movement of the rubber sheet, the heat exchange cylinder not only exchanges heat with the rubber sheet, but also rotates with the rubber sheet, reducing the friction generated during the feeding and cooling process and ensuring the smoothness of the surface of the heat exchange cylinder. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a front view of an embodiment of the present utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present utility model.

[0017] In the diagram: 1. Support frame; 2. Support pipe; 3. Rotating support plate; 4. Heat exchange cylinder; 5. Sealing cover; 6. Return pipe; 7. Supply pipe; 8. Connecting pipe; 9. Inner cylinder; 10. Heat exchange plate; 11. Sealing ring. Detailed Implementation

[0018] like Figure 1 and Figure 2As shown, this utility model provides a rubber sheet roller cooling device, including a support pipe 2 horizontally fixedly installed on a vertically arranged support frame 1, a heat exchange cylinder 4 coaxially rotatably mounted on the support pipe 2, and a liquid delivery pipe 7 and a liquid return pipe 6 arranged inside the support pipe 2. An inner cylinder 9 is fixedly mounted on the heat exchange cylinder 4. The inner cylinder 9 is located inside the heat exchange cylinder 4 and an annular cavity is provided between it and the inner wall of the heat exchange cylinder 4. The liquid delivery pipe 7 and the liquid return pipe 6 are both connected to the annular cavity. Both ends of the heat exchange cylinder 4 are coaxially fixedly connected to a rotating support disk 3 rotatably arranged on the support pipe 2. A sealing structure is provided between the rotating support disk 3 and the heat exchange cylinder 4.

[0019] The support frame 1 is vertically fixed, and the support pipe 2 is horizontally fixed on top of the support frame 1. The inner cylinder 9 is coaxially fixed on the support pipe 2. Then, the heat exchange cylinder 4 is fitted onto the inner cylinder 9. A rotating support plate 3 is connected to the sealed end of the heat exchange cylinder 4 via a flange. The rotating support plate 3 is connected to the support pipe 2 via a bearing. A sealing cover 5 is bolted to the open end of the heat exchange cylinder 4. The rotating support plate 3 is fixed to the movable end of the sealing cover 5 via a flange structure. The rotating support plate 3 is also rotatably connected to the support pipe 2, thus achieving rotational support for the heat exchange cylinder 4. Coolant is supplied to the annular cavity through the liquid delivery pipe 7, and the cooled coolant is recovered through the return pipe 6. The coolant can be either circulating water or tap water. In summer, when the water temperature is high, tap water is used for cooling; in winter, when the water temperature is low, circulating water is used for heat exchange, achieving water conservation. Furthermore, multiple heat exchange cylinders 4 are used for heat exchange of the rubber sheets. The coolant circulation velocity in the upstream heat exchange cylinder 4 is greater than that in the downstream heat exchange cylinder 4.

[0020] like Figure 1 As shown, the support frame 1 has two rows of support tubes 2, and the rubber sheet is wound in an S-shape between the heat exchange cylinders 4. Eight heat exchange cylinders 4 are arranged to gradually cool the rubber sheet. The S-shaped winding provides sufficient contact area, improving cooling efficiency and cooling water utilization.

[0021] like Figure 2 As shown. One end of the heat exchange cylinder 4 is a sealed end, and the other end is connected to an annular sealing cover 5 by bolts. The movable end of the sealing cover 5 is coaxially fixedly connected to the rotating support disk 3. The sealing structure is located at the docking end of the rotating support disk 3 and the sealing cover 5. Both the docking ends of the rotating support disk 3 and the sealing cover 5 are provided with annular grooves. The sealing structure is a sealing ring fixedly arranged in the sealing groove.

[0022] During installation, the heat exchange cylinder 4 is placed over the inner cylinder 9 to ensure that the sealing ring enters the annular groove. Then, the sealing cap 5, which is already fitted on the support tube 2, is connected to the open end of the heat exchange cylinder 4. The sealing cap 5 is then locked onto the heat exchange cylinder 4 with bolts. Finally, the sealing cap 5 and the rotating support plate 3 are connected. During the connection process, the sealing ring is squeezed to ensure the sealing between the sealing ring and the support tube 2.

[0023] like Figure 2 As shown. The two end walls of the inner cylinder 9 are respectively fitted to the inner end wall of the sealing end of the heat exchange cylinder 4 and the end wall of the sealing cover 5. An annular groove is coaxially formed on each end of the inner cylinder 9. Corresponding fitting grooves are formed on the end walls of the heat exchange cylinder 4 and the sealing cover 5. A sealing ring 11 in a compressed state is accommodated between the annular groove and the fitting groove. When installing the heat exchange cylinder 4, the sealing ring 11 is installed in the annular groove. After the heat exchange cylinder 4 and the inner cylinder 9 are coaxial, the sealing ring 11 at both ends of the inner cylinder 9 is compressed during the tightening of the sealing cover 5, thereby ensuring the sealing of the annular cavity and preventing coolant leakage.

[0024] like Figure 2 As shown in the diagram, a connecting pipe 8 is radially fixed between the support pipe 2 and the inner cylinder 9. Both the liquid delivery pipe 7 and the liquid return pipe 6 are equidistantly connected to branch pipes, which are fixed within the connecting pipe 8 and communicate with the annular cavity. The branch pipe of the liquid delivery pipe 7 is positioned below the branch pipe of the liquid return pipe 6. This bottom-inlet and top-outlet design ensures sufficient volume of heat exchange liquid within the annular cavity. Furthermore, the rotation of the heat exchange cylinder 4 after the heat exchange liquid enters the annular cavity promotes mixing of the heat exchange liquid, resulting in a stable and uniform temperature within the heat exchange cylinder 4.

[0025] like Figure 2 As shown, to improve the heat exchange efficiency of the heat exchange cylinder 4, the heat exchange area is increased by setting heat exchange plates 10. Annular heat exchange plates 10 are equidistantly arranged along the axial direction on the inner wall of the heat exchange cylinder 4.

[0026] like Figure 1 and Figure 2 As shown in the diagram, the support frame 1 is equipped with two connecting plates, and one end of the support pipe 2 passes through the two connecting plates and is fixedly connected to them. By setting up two connecting plates, the support pipe 2 is stably supported, ensuring the stability of the heat exchange cylinder 4 during operation.

Claims

1. A rubber sheet roller pressing and cooling device, characterized in that: It includes a support pipe (2) that is horizontally fixed on a vertically arranged support frame (1), a heat exchange cylinder (4) that is coaxially rotated and mounted on the support pipe (2), and a liquid delivery pipe (7) and a liquid return pipe (6) arranged inside the support pipe (2). An inner cylinder (9) is fixedly mounted on the heat exchange cylinder (4). The inner cylinder (9) is located inside the heat exchange cylinder (4) and an annular cavity is provided between it and the inner wall of the heat exchange cylinder (4). The liquid delivery pipe (7) and the liquid return pipe (6) are both connected to the annular cavity. Both ends of the heat exchange cylinder (4) are coaxially fixedly connected to a rotating support disk (3) that is rotatably arranged on the support pipe (2). A sealing structure is provided between the rotating support disk (3) and the heat exchange cylinder (4).

2. The rubber sheet roller cooling device as described in claim 1, characterized in that: The support frame (1) is provided with two rows of support pipes (2), and the rubber sheet is wound in an S-shape between the heat exchange cylinder (4).

3. The rubber sheet roller cooling device as described in claim 2, characterized in that: One end of the heat exchange cylinder (4) is a sealed end, and the other end is connected to an annular sealing cover (5) by bolts. The movable end of the sealing cover (5) is coaxially fixedly connected to the rotating support disk (3). The sealing structure is located at the docking end of the rotating support disk (3) and the sealing cover (5). Both the docking ends of the rotating support disk (3) and the sealing cover (5) are provided with annular grooves. The sealing structure is a sealing ring fixedly arranged in the sealing groove.

4. The rubber sheet roller cooling device as described in claim 3, characterized in that: The two end walls of the inner cylinder (9) are respectively attached to the inner end wall of the sealing end of the heat exchange cylinder (4) and the end wall of the sealing cover (5). An annular groove is coaxially opened on the end of the inner cylinder (9). Corresponding matching grooves are opened on the end walls of the heat exchange cylinder (4) and the sealing cover (5). A sealing ring (11) in a compressed state is accommodated between the annular groove and the matching groove.

5. The rubber sheet roller cooling device as described in claim 1, characterized in that: A connecting pipe (8) is fixedly arranged radially between the support pipe (2) and the inner cylinder (9). The liquid delivery pipe (7) and the liquid return pipe (6) are both connected to branch pipes at equal intervals. The branch pipes are fixed inside the connecting pipe (8) and communicate with the annular cavity.

6. The rubber sheet roller cooling device as described in claim 5, characterized in that: The branch of the liquid delivery pipe (7) is arranged below the branch of the liquid return pipe (6).

7. The rubber sheet roller cooling device as described in claim 1, characterized in that: The heat exchange cylinder (4) has annular heat exchange plates (10) arranged equidistantly along the axial direction on its inner wall.

8. The rubber sheet roller cooling device as described in claim 1, characterized in that: The support frame (1) is provided with two connecting plates, and one end of the support tube (2) passes through the two connecting plates and is fixedly connected to the connecting plates.

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