Constant-temperature rubber roller

Abstract

The utility model relates to the field of rubber rollers, in particular to a constant temperature type rubber roller which comprises a roller body and end covers connected to the two ends of the roller body, one end cover is connected with a first transmission end shaft, the other end cover is connected with a second transmission end shaft, the end, away from the roller body, of the first transmission end shaft is connected with a rotary connector, and an inner roller is connected into the roller body. The two ends of the inner cylinder are connected with the first transmission end shaft and the second transmission end shaft respectively, a sealing ring is connected to the middle of the surface of the inner cylinder, and the outer circle of the sealing ring is connected with the inner wall of the cylinder. The space between the inner cylinder and the cylinder body is divided into the left circulating cavity and the right circulating cavity by the aid of the sealing ring, so that heat-conducting oil directly flows on the surface of the inner cylinder, the flowing distance of the oil inlet is shortened, the heat-conducting oil is quickly transmitted into the left circulating cavity and the right circulating cavity through the transmission pipe, the heat conduction efficiency is improved, and the service life of the heat-conducting oil is prolonged. And meanwhile, the surface temperature of the rubber roller is kept uniform and is kept in a constant-temperature state, and the processing effect and the processing efficiency of products are improved.

Description

Technical Field

[0001] The utility model relates to the field of rubber rollers, in particular to a constant temperature rubber roller. Background Art

[0002] Rollers are cylindrical equipment parts, usually made of metal or other solid materials. They are widely used in various industrial equipment for transmission, compression, forming, coating, printing and other processes. Rubber rollers are a special form of rollers, with a layer of rubber material covering the surface. This layer of rubber material gives the rollers additional properties, such as elasticity, wear resistance, chemical corrosion resistance, adhesion and shock absorption, etc. These characteristics of rubber rollers make them an indispensable equipment part in many industrial fields. According to the different production fields of customers and the scope of their processed products, some rubber rollers will be injected with heat-conducting liquids or electrically heated to transfer heat and assist in processing, such as fabric gluing, rubber material pressing and stamping, laser anti-counterfeiting material manufacturing, diaper non-woven fabrics, automotive cushioning non-woven fabrics and other non-woven materials. In the field of thermal processing, heated rubber rollers can provide a stable temperature environment to ensure that the materials are evenly heated at a suitable temperature.

[0003] With respect to the above-mentioned related technologies, the inventors found that due to the different types of processed products, it is generally necessary to maintain the surface temperature of the rubber roller at a required specific temperature. In order to maintain the consistent surface temperature of the rubber roller, it is necessary to inject heat transfer oil and other heat transfer liquids into the rubber roller for circulation. However, the rubber roller itself has a certain length. When the heat transfer oil is injected, the temperature of the end of the rubber roller close to the oil inlet is higher. As the heat of the heat transfer oil flow is released, the heat at the return oil will be lower, resulting in uneven temperature on the surface of the rubber roller, which cannot be maintained at a constant temperature continuously, thereby affecting the processing effect and efficiency of the product. Utility Model Content

[0004] The utility model mainly solves the technical problem of providing a constant temperature rubber roller, which can keep the surface temperature of the rubber roller uniform and in a constant temperature state, and improve the processing effect and processing efficiency.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a constant temperature rubber roller, comprising: a cylinder and end covers connected to the two ends thereof, wherein one of the end covers is connected to a transmission end shaft 1, and the other end cover is connected to a transmission end shaft 2, and the end of the transmission end shaft 1 away from the cylinder is connected to a rotary joint, the cylinder is connected to an inner cylinder, and the two ends of the inner cylinder are respectively connected to the transmission end shaft 1 and the transmission end shaft 2, and a sealing ring is connected to the middle of the surface of the inner cylinder, and the outer circle of the sealing ring is connected to the inner wall of the cylinder;

[0006] The sealing ring divides the cavity between the cylinder and the inner cylinder into a left circulation cavity and a right circulation cavity. An oil guide tube assembly is passed through the center of the inner cylinder. One end of the oil guide tube assembly passes through the transmission end shaft 1 and is connected to the input end of the rotary joint. An output cavity is formed on the outer side of the oil guide tube assembly and the inner side of the transmission end shaft 1. The output cavity is connected to the output end of the rotary joint.

[0007] The oil guide pipe assembly includes a pipe body and an L-shaped partition connected to the inner side thereof, wherein the L-shaped partition divides the inner cavity of the pipe body into an oil inlet cavity and an oil outlet cavity, and transmission pipes are symmetrically and staggeredly arranged on the surface of the pipe body, and the transmission pipes are respectively connected to the oil inlet cavity, one of the transmission pipes is connected to the left circulation cavity, and the other transmission pipe is connected to the right circulation cavity, and a sealing block is connected to one end of the oil outlet cavity close to the rotary joint;

[0008] A plurality of oil outlet holes 1 are provided in a circular array on the outer circle of the transmission end shaft 1, and the oil outlet holes 1 are respectively connected to the output cavity. A plurality of oil outlet holes 2 are provided in a circular array on the outer circle of the transmission end shaft 2, and the oil outlet holes 2 are respectively connected to the oil outlet cavity. An oil outlet hole 3 is provided in the oil outlet cavity, and the oil outlet hole 3 is located between the oil outlet hole 1 and the sealing block and is connected to the output cavity.

[0009] By adopting the above technical scheme, the heat transfer oil flows directly on the surface of the inner cylinder, effectively transferring heat to the cylinder of the rubber roller. The sealing ring also cleverly separates the left circulation chamber and the right circulation chamber, so that the heat transfer oil circulates in two independent spaces, shortening the flow distance of the oil inlet, and allowing the heat transfer oil to be quickly transmitted to the left circulation chamber and the right circulation chamber through the transmission pipe, thereby improving the heat conduction efficiency. The L-shaped partition separates the inner cavity of the tube body into an oil inlet chamber and an oil outlet chamber. This design effectively realizes the separation and redistribution of the heat transfer oil. The oil inlet chamber is connected with the left and right circulation chambers through the transmission pipe, so that the heat transfer oil can be evenly injected into the two circulation chambers of the rubber roller, and the oil outlet chamber is connected with the output cavity and the output end of the rotary joint through the oil outlet hole three, thereby realizing the recovery and reuse of the heat transfer oil.

[0010] In a preferred example, the utility model can be further configured as follows: a left spiral ring is connected to the left circulation chamber, the inner side of the left spiral ring is connected to the inner cylinder, and the outer side is connected to the cylinder body; a right spiral ring is connected to the right circulation chamber, the inner side of the right spiral ring is connected to the inner cylinder, and the outer side is connected to the cylinder body.

[0011] By adopting the above technical solution, the design of the left spiral ring and the right spiral ring increases the contact area between the inner cylinder and the circulation chamber, and also helps the heat transfer oil to form eddy or spiral flow in the circulation chamber, thereby improving the heat transfer efficiency. When the heat transfer oil flows in the left and right circulation chambers, it can more fully exchange heat with the inner cylinder and the cylinder body through the guidance of the left spiral ring and the right spiral ring, which helps to reach and maintain the required temperature of the rubber roller surface more quickly, and reduces local overheating or overcooling caused by uneven fluid flow, thereby improving the uniformity of the rubber roller surface temperature.

[0012] In a preferred example, the present invention can be further configured as follows: the transmission pipes are respectively arranged close to the sealing rings.

[0013] By adopting the above technical solution, when the transmission pipe is arranged close to the sealing ring, the heat transfer oil can enter the left and right circulation chambers through the transmission pipe more directly and quickly. Since the sealing ring is a key component that separates the cavity between the cylinder body and the inner cylinder, the temperature gradient around it may be relatively large. By arranging the transmission pipe in this area, the heat of the heat transfer oil can be more effectively utilized, accelerating the heat transfer process, thereby improving the thermal conductivity efficiency of the entire roller system.

[0014] In a preferred example, the utility model can be further configured as follows: the number of the first oil outlet hole and the number of the second oil outlet hole are no less than six.

[0015] By adopting the above technical solution, multiple oil outlet holes 1 and oil outlet holes 2 can make the heat transfer oil flow out through these holes more quickly, thereby improving the heat transfer efficiency. When the heat transfer oil circulates inside the rubber roller, the heat can be transferred to the roller surface more quickly through more oil outlet holes 1 and oil outlet holes 2, which helps to reach and maintain the required temperature more quickly.

[0016] In a preferred example, the present invention can be further configured as follows: the L-shaped partition is located at the center of the tube body.

[0017] By adopting the above technical solution, the L-shaped partition separates the oil inlet chamber and the oil outlet chamber symmetrically on both sides of the tube body, making the flow of the heat transfer oil in the tube body more orderly and stable. This layout helps to reduce the turbulence and eddy current phenomena of the fluid during the flow process and improve the uniformity and stability of the fluid flow.

[0018] In summary, the utility model includes at least one of the following beneficial technical effects of the constant temperature rubber roller:

[0019] 1. By connecting the transmission end shaft 1 and the transmission end shaft 2 on the two end covers respectively, and using the sealing ring to separate the space between the inner cylinder and the cylinder body into left and right circulation chambers, the heat transfer oil can flow directly on the surface of the inner cylinder, and the flow distance of the oil inlet is shortened, so that the heat transfer oil can be quickly transmitted to the left circulation chamber and the right circulation chamber through the transmission pipe, thereby improving the heat conduction efficiency, and keeping the surface temperature of the rubber roller uniform and at a constant temperature, thereby improving the processing effect and efficiency of the product.

[0020] 2. The L-shaped partition separates the inner cavity of the tube body into an oil inlet cavity and an oil outlet cavity. This design effectively realizes the separation and redistribution of the heat transfer oil. The oil inlet cavity is connected with the left and right circulation cavities through the transmission pipe, so that the heat transfer oil can be evenly injected into the two circulation cavities of the rubber roller, and the oil outlet cavity is connected with the output cavity and the output end of the rotary joint through the oil outlet hole 3, realizing the recovery and reuse of the heat transfer oil.

[0021] 3. The spiral structure of the left spiral ring and the right spiral ring helps the heat transfer oil to form eddy or spiral flow in the left circulation chamber and the right circulation chamber. This flow mode is conducive to the uniform distribution of heat. It not only enhances the heat conduction, but also provides certain support for the inner cylinder. By connecting the inner side of the left spiral ring and the right spiral ring to the inner cylinder and the outer side to the cylinder body, a more stable structural system is formed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, among which:

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 for Figure 1 Enlarged view of point A in .

[0025] In the figure: 1, cylinder; 2, end cover; 3, transmission end shaft 1; 4, transmission end shaft 2; 5, rotary joint; 6, inner cylinder; 7, sealing ring; 80, oil guide pipe assembly; 9, left circulation chamber; 11, right circulation chamber; 12, output chamber; 13, oil outlet hole 1; 14, oil outlet hole 2; 15, oil outlet hole 3; 16, left spiral ring; 17, right spiral ring;

[0026] 81. Tube body; 82. L-shaped partition; 83. Oil inlet chamber; 84. Oil outlet chamber; 85. Transmission pipe; 86. Sealing block. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0028] It should be noted that these drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0029] Reference Figure 1-2 , is a constant temperature rubber roller disclosed in the utility model, comprising: a cylinder 1 and end covers 2 connected to its two ends, one of the end covers 2 is connected to a transmission end shaft 3, the other end cover 2 is connected to a transmission end shaft 2 4, the end of the transmission end shaft 3 away from the cylinder 1 is connected to a rotary joint 5, the cylinder 1 is connected to an inner cylinder 6, the two ends of the inner cylinder 6 are respectively connected to the transmission end shaft 3 and the transmission end shaft 2 4, a sealing ring 7 is connected to the middle of the surface of the inner cylinder 6, the outer circle of the sealing ring 7 is connected to the inner wall of the cylinder 1, the sealing ring 7 divides the cavity between the cylinder 1 and the inner cylinder 6 into a left circulation cavity 9 and a right circulation cavity 11, an oil guide pipe assembly 80 is passed through the center of the inner cylinder 6, one end of the oil guide pipe assembly 80 passes through the transmission end shaft 3 and is connected to the input end of the rotary joint 5, the outer side of the oil guide pipe assembly 80 and the inner side of the transmission end shaft 3 form an output cavity 12, the output cavity 12 is connected to the output end of the rotary joint 5, and the oil guide pipe assembly 8 0 includes a tube body 81 and an L-shaped partition 82 connected to the inner side thereof. The L-shaped partition 82 is located at the center of the tube body 81. The L-shaped partition 82 divides the inner cavity of the tube body 81 into an oil inlet cavity 83 and an oil outlet cavity 84. The surface of the tube body 81 is symmetrically staggered with transmission pipes 85. The transmission pipes 85 are respectively connected to the oil inlet cavity 83. One of the transmission pipes 85 is connected to the left circulation cavity 9, and the other transmission pipe 85 is connected to the right circulation cavity 11. The oil outlet cavity 84 is close to the rotary joint. 5 is connected to one end of the transmission end shaft 1, a sealing block 86 is provided, a plurality of oil outlet holes 13 are provided in an annular array on the outer circle of the transmission end shaft 1, and the oil outlet holes 13 are respectively connected to the output cavity 12; a plurality of oil outlet holes 2 are provided in an annular array on the outer circle of the transmission end shaft 2 4, and the oil outlet holes 2 14 are respectively connected to the oil outlet cavity 84; an oil outlet hole 3 15 is provided in the oil outlet cavity 84, and the oil outlet hole 3 15 is located between the oil outlet hole 13 and the sealing block 86 and is connected to the output cavity 12.

[0030] By connecting the transmission end shaft 1 3 and the transmission end shaft 2 4 on the two end covers 2 respectively, and using the sealing ring 7 to separate the space between the inner cylinder 6 and the cylinder body 1 into a left circulation chamber 9 and a right circulation chamber 11, this design not only ensures the stable rotation of the inner cylinder 6, but also effectively prevents the leakage of heat transfer oil or other heat transfer liquids through the sealing ring 7, providing a basis for the stable transfer of heat. The connection between the rotary joint 5 and the transmission end shaft 1 3, and the design of the oil guide pipe assembly 80 running through the transmission end shaft 3, realize the seamless transmission of heat transfer oil between static and dynamic components. The rotary joint 5 allows the continuous supply and discharge of liquid during the rotation process, and the oil guide pipe assembly 80 ensures that the heat transfer oil can be efficiently and evenly distributed to the inside of the rubber roller. In addition, since the L-shaped partition plate 82 separates the inner cavity of the tube body 81 into an oil inlet chamber 83 and an oil outlet chamber 84, the oil inlet chamber 83 is connected with the left circulation chamber 9 and the right circulation chamber 11 through the transmission pipe 85, so that the heat transfer oil can be evenly injected into the two circulation chambers of the rubber roller. In the annular cavity, the oil outlet cavity 84 is connected with the output cavity 12 and the output end of the rotary joint 5 through the oil outlet hole three 15, thereby realizing the recovery and reuse of the heat transfer oil. The design of the oil outlet hole one 13 and the oil outlet hole two 14 in the annular array on the transmission end shaft one 3 and the transmission end shaft two 4 enables the heat transfer oil to be evenly distributed around the rubber roller when flowing out of the inner cylinder 6, which helps to reduce the temperature gradient and improve the uniformity of the roller surface temperature. In combination with the setting of the oil outlet hole three 15, it is further ensured that the heat transfer oil in the oil outlet cavity 84 can smoothly enter the output cavity 12, thereby maintaining the continuous operation and temperature stability of the system. In addition, the oil outlet hole three 15 can also be provided with multiple, evenly distributed on the periphery of the oil outlet cavity 84. The setting of multiple oil outlet holes three 15 increases the number of channels for the heat transfer oil to be discharged from the oil outlet cavity 84, so that the heat transfer oil can flow out of the inner cylinder 6 and enter the output cavity 12 more quickly, thereby improving the circulation efficiency of the heat transfer oil and reducing the heat accumulation caused by the retention of the heat transfer oil.

[0031] A left spiral ring 16 is connected to the left circulation chamber 9, the inner side of which is connected to the inner cylinder 6 and the outer side is connected to the cylinder body 1. A right spiral ring 17 is connected to the right circulation chamber 11, the inner side of which is connected to the inner cylinder 6 and the outer side is connected to the cylinder body 1.

[0032] The left spiral ring 16 and the right spiral ring 17 increase the contact area between the inner cylinder 6 and the left circulation chamber 9 and the right circulation chamber 11, thereby improving the heat transfer efficiency, and allowing the heat transfer oil to form eddy currents or spiral flows in the left spiral ring 16 and the right spiral ring 17, reducing local overheating or overcooling caused by uneven fluid flow, and improving the uniformity of the surface temperature of the rubber roller. At the same time, the left spiral ring 16 and the right spiral ring 17 can also optimize the flow path of the heat transfer oil in the left circulation chamber 9 and the right circulation chamber 11, reducing flow resistance and energy loss, and improving the efficiency of the entire circulation system, so that the heat transfer oil can complete the heat transfer and distribution tasks more efficiently. By improving the heat transfer efficiency and the uniformity of heat distribution, the thermal stress of the rubber roller caused by uneven temperature changes is reduced, which helps to reduce the fatigue damage and aging rate of the roller material, thereby extending the service life of the equipment. At the same time, the left spiral ring 16 and the right spiral ring 17 not only enhance the heat transfer, but also play a certain supporting role on the inner cylinder 6. A more stable structural system is formed by connecting the inner sides of the left spiral ring 16 and the right spiral ring 17 to the inner cylinder 6 and the outer sides to the cylinder body 1.

[0033] The transmission pipes 85 are respectively arranged close to the sealing rings 7 .

[0034] When the transmission pipe 85 is arranged close to the sealing ring 7, the heat transfer oil can enter the left circulation chamber 9 and the right circulation chamber 11 through the transmission pipe 85 more directly and quickly, and at the same time ensure that the heat transfer oil can be more evenly distributed in various parts of the roller when injected into the left circulation chamber 9 and the right circulation chamber 11, which helps to reduce local overheating or overcooling caused by uneven fluid flow, makes the temperature of the rubber roller surface more uniform, and maintains the temperature of the rubber roller surface within a constant area. The layout design of the transmission pipe 85 close to the sealing ring 7 optimizes the flow path of the heat transfer oil in the left circulation chamber 9 and the right circulation chamber 11 to a certain extent, further reduces the flow resistance, and improves the stability of fluid flow.

[0035] The number of the first oil outlet hole 13 and the second oil outlet hole 14 is no less than six.

[0036] When the heat transfer oil circulates inside the rubber roller, heat can be transferred to the roller surface more quickly through multiple oil outlet holes 13 and oil outlet holes 2 14, which helps to reach and maintain the required temperature more quickly. The provision of multiple oil outlet holes 13 and oil outlet holes 2 14 allows the heat transfer oil to be more evenly distributed in various areas of the roller when flowing out of the inner cylinder 6, which helps to reduce local overheating or overcooling caused by insufficient number of oil outlet holes 13 and oil outlet holes 2 14, making the temperature of the rubber roller surface more uniform. At the same time, the increase in the number of oil outlet holes 13 and oil outlet holes 2 14 helps to reduce the flow pressure of a single oil outlet hole 13 and oil outlet hole 2 14, and reduce the risk of blockage or leakage caused by excessive flow, which improves the stability and reliability of the entire system, reduces the failure rate, and extends the service life of the equipment.

[0037] The implementation principle of this embodiment is as follows: when in use, the heat transfer oil heated to the corresponding temperature enters the oil inlet chamber 83 of the oil guide pipe assembly 80 through the oil inlet port of the rotary joint 5, and the heat transfer oil in the oil inlet chamber 83 enters the left circulation chamber 9 and the right circulation chamber 11 respectively through the transmission pipe 85 under the action of pressure, and then the heat transfer oil entering the left circulation chamber 9 and the right circulation chamber 11 exchanges heat with the inner cylinder 6 and the cylinder body 1. At this time, the heat transfer oil flows along the spiral path of the left spiral ring 16 and the right spiral ring 17, fully transferring heat to the cylinder body 1, and after flowing in sequence, part of the heat transfer oil after heat exchange flows along the oil outlet hole 13 to the oil outlet chamber 84, and the other part flows along the oil outlet hole 2 14 to the output chamber 12, and the oil heat of the oil outlet chamber 84 finally flows to the output chamber 12 through the oil outlet hole 3 15, and is output to the outside of the cylinder body 1 together, realizing circulating flow, thereby keeping the surface of the rubber roller in a constant temperature state.

[0038] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A constant temperature rubber roller, comprising: A cylinder (1) and end covers (2) connected to both ends thereof, wherein one of the end covers (2) is connected to a transmission end shaft 1 (3), and the other end cover (2) is connected to a transmission end shaft 2 (4), and the end of the transmission end shaft 1 (3) away from the cylinder (1) is connected to a rotary joint (5), characterized in that an inner cylinder (6) is connected to the inside of the cylinder (1), and the two ends of the inner cylinder (6) are respectively connected to the transmission end shaft 1 (3) and the transmission end shaft 2 (4), and a sealing ring (7) is connected to the middle of the surface of the inner cylinder (6), and the outer circle of the sealing ring (7) is connected to the inner wall of the cylinder (1); The sealing ring (7) divides the cavity between the cylinder (1) and the inner cylinder (6) into a left circulation cavity (9) and a right circulation cavity (11); an oil guide tube assembly (80) is provided at the center of the inner cylinder (6); one end of the oil guide tube assembly (80) passes through the transmission end shaft 1 (3) and is connected to the input end of the rotary joint (5); an output cavity (12) is formed on the outer side of the oil guide tube assembly (80) and the inner side of the transmission end shaft 1 (3); and the output cavity (12) is connected to the output end of the rotary joint (5); The oil guide pipe assembly (80) comprises a pipe body (81) and an L-shaped partition (82) connected to the inner side thereof, wherein the L-shaped partition (82) divides the inner cavity of the pipe body (81) into an oil inlet cavity (83) and an oil outlet cavity (84), and the surface of the pipe body (81) is symmetrically and staggeredly provided with transmission pipes (85), the transmission pipes (85) are respectively connected to the oil inlet cavity (83), one of the transmission pipes (85) is connected to the left circulation cavity (9), and the other transmission pipe (85) is connected to the right circulation cavity (11), and a sealing block (86) is connected to one end of the oil outlet cavity (84) close to the rotary joint (5); A plurality of oil outlet holes (13) are provided in an annular array on the outer circle of the transmission end shaft (3), and the oil outlet holes (13) are respectively connected to the output cavity (12); a plurality of oil outlet holes (14) are provided in an annular array on the outer circle of the transmission end shaft (4), and the oil outlet holes (14) are respectively connected to the oil outlet cavity (84); an oil outlet hole (15) is provided in the oil outlet cavity (84), and the oil outlet hole (15) is located between the oil outlet hole (13) and the sealing block (86) and is connected to the output cavity (12).

2. A constant temperature rubber roller according to claim 1, characterized in that: The left circulation chamber (9) is connected to a left spiral ring (16), the inner side of the left spiral ring (16) is connected to the inner cylinder (6), and the outer side is connected to the cylinder body (1); the right circulation chamber (11) is connected to a right spiral ring (17), the inner side of the right spiral ring (17) is connected to the inner cylinder (6), and the outer side is connected to the cylinder body (1).

3. A constant temperature rubber roller according to claim 1, characterized in that: The transmission pipes (85) are respectively arranged close to the sealing rings (7).

4. A constant temperature rubber roller according to claim 1, characterized in that: The number of the oil outlet hole 1 (13) and the number of the oil outlet hole 2 (14) are no less than six.

5. The constant temperature rubber roller according to claim 1, characterized in that: The L-shaped partition (82) is located at the center of the tube body (81).

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