Novel hot roller device

Abstract

A novel hot roller device comprises a shaft body, end plates, a roller and a clamping sleeve, and is characterized by further comprising an oil inlet pipe, an oil passing pipe, an oil outlet pipe, a flow guide plate and a partition plate, the two ends of the inner wall of the roller and the outer wall of the shaft body are welded into a whole through the end plates, the clamping sleeve is arranged between the roller and the shaft body, and the two ends of the clamping sleeve and the end plates are welded into a whole; a blind hole is axially formed in the shaft body, the two ends of the oil passing pipe are installed in the blind hole in a sealed mode, an inner hole of the oil passing pipe is communicated with the blind hole to form an oil inlet cavity, and an oil outlet cavity is formed by the outer wall of the oil passing pipe and the inner wall of the blind hole. A plurality of independent heating cavities are formed between the roller and the jacket through the plurality of guide plates and the plurality of partition plates; and each independent heating cavity is communicated with the oil inlet cavity through an oil inlet pipe and is communicated with the oil outlet cavity through an oil outlet pipe. The roller has the advantages of being simple in structure, high in practicability and capable of improving the uniformity of the temperature of the roller surface of the roller.

Description

Technical Field

[0001] This utility model relates to the field of spinning machinery, and in particular to a novel hot roller device in nonwoven fabric web forming equipment. Background Technology

[0002] Currently, most nonwoven fabric forming equipment in China uses a jacketed structure for the heat transfer oil hot rollers. However, this often results in uneven temperature control in the width direction. In addition, the quality requirements for the welds between the jacket and the end plate are very high, and the rollers cannot be inspected after welding. Once a defect appears in the weld, the heat transfer oil will leak into the cavity between the jacket and the shaft. During operation, the dynamic balance will be gradually destroyed, and long-term high-speed operation may even lead to serious consequences such as shaft breakage. Furthermore, the heat transfer oil in the oil cavity between the roller and the jacket often accumulates and becomes blocked due to welding slag, coking, and other factors, resulting in a large temperature difference on the roller surface, which seriously affects the quality of the nonwoven fabric. Summary of the Invention

[0003] The purpose of this utility model is to address the problems in the related technologies by proposing a novel hot roller device to overcome the aforementioned technical problems existing in the existing related technologies.

[0004] The technical solution of this utility model is as follows: This utility model includes a shaft, an end plate, a roller, and a jacket. It is characterized by further including an oil inlet pipe, an oil passage pipe, an oil outlet pipe, guide plates, and partition plates. The inner walls of the roller are welded to the outer walls of the shaft via the end plates. The jacket is disposed between the roller and the shaft, and its two ends are welded to the end plates. The shaft has a blind hole axially formed, and the oil passage pipe is sealed and installed in the blind hole at both ends. The inner hole of the oil passage pipe communicates with the blind hole to form an oil inlet chamber, and the outer wall of the oil passage pipe and the inner wall of the blind hole form an oil outlet chamber. Several independent heating chambers are formed between the roller and the jacket via several guide plates and several partition plates. Each independent heating chamber communicates with the oil inlet chamber via an oil inlet pipe and with the oil outlet chamber via an oil outlet pipe. During operation, the high-temperature heat transfer oil flows sequentially through the oil inlet chamber and several oil inlet pipes into several independent heating chambers. The high-temperature heat transfer oil flows around the guide plate in an S-shape within the independent heating chambers and finally merges with several oil outlet pipes to enter the oil outlet chamber. The high-temperature heat transfer oil circulates repeatedly to maintain the roller surface temperature through continuous heat exchange. The setting of multiple independent heating chambers can further improve the uniformity of the roller surface temperature.

[0005] Preferably, the end plate has a detection hole between the jacket and the shaft, and a drain hole at each of the independent heating chambers. The detection hole is used to inspect the weld seams between the jacket ends and the end plate after the roller welding is completed; if leakage is found, the weld seams need to be repaired. The drain hole is used for the periodic drainage and cleaning of the heat transfer oil in the independent heating chambers to prevent accumulation and blockage caused by welding slag, coking, etc., which could lead to a large temperature difference on the roller surface and seriously affect the quality of the nonwoven fabric.

[0006] The advantages of this utility model are: simple structure and strong practicality. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.

[0008] Figure 1 : Front view of this utility model;

[0009] Figure 2 : Figure 1 AA section view;

[0010] Figure 3 : Figure 1 BB cross-sectional view;

[0011] Figure 4 : Jacket unfolded diagram;

[0012] Figure 5 Schematic diagram of the end plate structure;

[0013] In the diagram: 1. Shaft, 2. End plate, 3. Roller, 4. Oil inlet pipe, 5. Jacket, 6. Oil passage pipe, 7. Oil outlet pipe, 8. Guide plate, 9. Partition plate, 10. Inspection hole, 11. Discharge hole. Detailed Implementation

[0014] like Figures 1 to 5As shown, this utility model includes a shaft 1, an end plate 2, a roller 3, and a jacket 5. Its key feature is that it also includes an oil inlet pipe 4, an oil passage pipe 6, an oil outlet pipe 7, a guide plate 8, and a partition plate 9. The inner walls of the roller 3 are welded to the outer walls of the shaft 1 at both ends via the end plate 2. The jacket 5 is disposed between the roller 3 and the shaft 1, and its two ends are welded to the end plate 2. The shaft 1 has a blind hole axially formed, and the oil passage pipe 6 is sealed at both ends within the blind hole. The inner hole of the oil passage pipe 6... The oil inlet chamber is formed by communicating with the blind hole, and the outer wall of the oil pipe 6 and the inner wall of the blind hole form an oil outlet chamber; the roller 3 and the jacket 5 are connected by several guide plates 8 and several partition plates 9 to form several independent heating chambers; each independent heating chamber is connected to the oil inlet chamber by an oil inlet pipe 4 and to the oil outlet chamber by an oil outlet pipe 7; the end plate 2 is provided with a detection hole 10 between the jacket 5 and the shaft 1, and a discharge hole 11 is provided at the position of each independent heating chamber.

[0015] During operation, high-temperature heat transfer oil flows sequentially through the inlet chamber and several inlet pipes 4 into several independent heating chambers. Within each independent heating chamber, the oil circulates in an S-shape along the guide plate 8, finally converging through several outlet pipes 7 into the outlet chamber. This repeated circulation of the high-temperature heat transfer oil maintains the roller surface temperature of roller 3 through continuous heat exchange. The multiple independent heating chambers further improve the uniformity of the roller surface temperature. Inspection hole 10 is used to inspect the welds between the jacket 5 and the end plate 2 after welding on roller 3. If leakage is found, the weld must be repaired. Drain hole 11 is used for periodic drainage and cleaning of the heat transfer oil in the independent heating chambers to prevent accumulation and blockage caused by welding slag, coking, etc., which could lead to a large temperature difference on the roller surface of roller 3 and severely affect the quality of the nonwoven fabric.

[0016] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 hot roller device, comprising a shaft (1), an end plate (2), a roller (3), and a jacket (5), characterized in that... It also includes an oil inlet pipe (4), an oil passage pipe (6), an oil outlet pipe (7), a guide plate (8), and a partition plate (9). The inner walls of the roller (3) are welded to the outer walls of the shaft (1) through end plates (2). The jacket (5) is located between the roller (3) and the shaft (1). The two ends of the jacket (5) are welded to the end plates (2). The shaft (1) has a blind hole in the axial direction. The two ends of the oil passage pipe (6) are sealed and installed in the blind hole. The inner hole of the oil passage pipe (6) is connected to the blind hole to form an oil inlet chamber. The outer wall of the oil passage pipe (6) and the inner wall of the blind hole form an oil outlet chamber. The roller (3) and the jacket (5) are connected to each other through a number of guide plates (8) and partition plates (9) to form a number of independent heating chambers. Each independent heating chamber is connected to the oil inlet chamber through the oil inlet pipe (4) and to the oil outlet chamber through the oil outlet pipe (7).

2. The novel hot roller device according to claim 1, characterized in that... The end plate (2) has a detection hole (10) between the jacket (5) and the shaft (1), and a discharge hole (11) is provided at each of the independent heating chambers.

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