A cooling roller

Abstract

The present invention discloses a cooling roller, comprising a cylinder, two ends of the cylinder are connected with cover plates, the outer sleeve of the cylinder is provided with a cooling sleeve, the cover plate is connected to the cooling sleeve, the cylinder, the cooling sleeve and the cover plate form a cooling chamber, a main shaft is arranged at the center of the cylinder, the main shaft is provided with a first fluid channel arranged along its axial direction, the cylinder is provided with a plurality of second fluid channels and a plurality of third fluid channels arranged along its radial direction, the second fluid channel and the third fluid channel are arranged in sequence along the axial direction of the main shaft, the first fluid channel connects the second fluid channel and the third fluid channel, the second fluid channel and the third fluid channel are both connected to the cooling chamber, and a first spoiler is arranged in the cooling chamber. The first spoiler can disturb the cooling water in the cooling chamber, reduce the stagnation of the cooling water, increase the fluidity of the cooling water, so that the cooling water of different temperatures collide and blend with each other, so as to even out the temperature of the cooling water in various places in the cooling chamber, and reduce the influence of temperature changes on film preparation.

Description

Technical Field

[0001] The invention relates to the technical field of film preparation, and more particularly to a cooling roller. Background Art

[0002] During film preparation, the extruded film needs to be cooled. Cooling is usually done using a cooling roller. Existing cooling rollers usually have cooling water pipes on the surface of the roller. Due to the order in which the water pipes flow, the temperature on the surface of the cooling roller is not uniform, and the temperature difference will affect the quality of the film. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a cooling roller with uniform temperature.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] The present invention discloses a cooling roller, comprising a cylinder, both ends of the cylinder are connected with cover plates, the outer sleeve of the cylinder is provided with a cooling sleeve, the cover plate is connected to the cooling sleeve, the cylinder, the cooling sleeve and the cover plate form a cooling cavity, a main shaft is arranged at the center of the cylinder, the main shaft is provided with a first fluid channel arranged along its axial direction, the cylinder is provided with a plurality of second fluid channels and a plurality of third fluid channels arranged along its radial direction, the second fluid channels and the third fluid channels are arranged in sequence along the axial direction of the main shaft, the first fluid channel connects the second fluid channel and the third fluid channel, the second fluid channel and the third fluid channel are both connected to the cooling cavity, and a first spoiler is arranged in the cooling cavity.

[0006] Furthermore, the cover plate is rotatably connected to the cooling jacket and the cylinder, and the inner wall of the cover plate is provided with a second spoiler extending toward the center of the cooling jacket, one side of the first spoiler is connected to the cooling jacket, and the other side is connected to the cylinder, and the rotation direction of the cover plate is opposite to the rotation direction of the main shaft so that the rotation direction of the first spoiler is opposite to the rotation direction of the second spoiler.

[0007] Furthermore, the first spoiler and the second spoiler are both inclined and in opposite directions, the first spoiler is provided with a plurality of first spoiler holes, the first spoiler holes are inclined and in opposite directions to the first spoiler, the second spoiler is provided with a plurality of second spoiler holes, the second spoiler holes are inclined and in opposite directions to the second spoiler.

[0008] Furthermore, the cooling sleeve and the end faces of the cylinder are both provided with mounting grooves, the cover plate is provided with a rotating portion extending into the mounting groove, the inner wall of the mounting groove is provided with a first support ring extending toward the rotating portion, the first support ring is provided with a first accommodating groove, the rotating portion is provided with a second support ring extending toward the first support ring, the second support ring is provided with a second accommodating groove, and balls are embedded between the first accommodating groove and the second accommodating groove so that the rotating portion and the mounting groove can be rotatably connected.

[0009] Furthermore, the inner wall of the mounting groove is provided with a third support ring extending toward the rotating part, and a seal is provided in the mounting groove. The seal includes a main body, one end of the main body is provided with a connecting groove for inserting the third support ring, and the other end of the main body is provided with a first abutment portion and a second abutment portion extending toward the rotating part, and the first abutment portion and the second abutment portion are both inclined and the inclination directions are opposite.

[0010] Furthermore, a first support portion extends from the opening of the connecting groove and is in contact with a surface of the third support ring facing the second support ring and a side wall of the mounting groove, a second support portion extending toward the rotating portion is provided at the end of the first support portion, a third abutment portion is provided at the end of the second support portion, the second support portion is inclined toward the main body, and the third abutment portion is inclined toward the main body and forms an obtuse angle with the second support portion.

[0011] Furthermore, the main body is provided with a third support portion extending toward the second support portion and abutting against the second support portion, the first support portion and the second support portion form a sealed cavity in the mounting groove, and the third support portion divides the sealed cavity into a first chamber close to the rotating portion and a second chamber close to the side wall of the mounting groove.

[0012] Furthermore, the first abutting portion is provided with an extending portion extending toward the cover plate and abutting against the cover plate, and the extending portion and the first abutting portion form a groove opening toward the second spoiler.

[0013] Furthermore, a first plug-in slot is provided on one side of the cylinder facing the cooling sleeve, a second plug-in slot is provided on one side of the cooling sleeve facing the cylinder, and a first plug-in portion inserted into the first plug-in slot and a second plug-in portion inserted into the second plug-in slot are respectively provided at both ends of the first spoiler.

[0014] The beneficial effects of the present invention are:

[0015] 1. The first spoiler and the second spoiler can disturb the cooling water in the cooling chamber, reduce the stagnation of the cooling water, increase the fluidity of the cooling water, so that the cooling water of different temperatures collide and blend with each other, thereby uniformly adjusting the temperature of the cooling water in various places in the cooling chamber, thereby making the stability of the cooling jacket more uniform and reducing the impact of temperature changes on film preparation.

[0016] 2. The seal can ensure the sealing performance of the cover plate. At the same time, the cooling water that penetrates into the seal is used through centrifugal action to strengthen the fit between the seal and the rotating part, thereby compensating for the sealing performance, reducing the subsequent infiltration of cooling water, and ensuring the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0019] Figure 3 is a schematic diagram of the structure of the seal;

[0020] Figure 4 It is a radial cross-sectional view of the present invention;

[0021] Figure 5 for Figure 4 The enlarged view of point B in the middle;

[0022] Figure numerals: cylinder 100, first plug-in slot 101, main shaft 110, first fluid channel 111, second fluid channel 120, third fluid channel 130, cooling chamber 140, mounting slot 150, first support ring 160, first accommodating slot 161, third support ring 170, sealing chamber 180, first chamber 181, second chamber 182, cooling jacket 200, first spoiler 210, first spoiler hole 211, first plug-in portion 212, second plug-in portion 213, cover plate 300, second plug-in slot 301, second spoiler 310, second spoiler hole 311, rotating portion 320, main body 400, connecting slot 410, first abutting portion 420, extending portion 421, second abutting portion 430, first supporting portion 440, second supporting portion 450, third abutting portion 460, third supporting portion 470, ball 500. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figures 1 to 5 A cooling roller comprises a cylinder 100, both ends of the cylinder 100 are connected to cover plates 300, a cooling sleeve 200 is provided on the outside of the cylinder 100, the cover plate 300 is connected to the cooling sleeve 200, the cylinder 100, the cooling sleeve 200 and the cover plate 300 form a cooling chamber 140, a main shaft 110 is provided at the center of the cylinder, the main shaft 110 is provided with a first fluid channel 111 arranged along its axial direction, the cylinder 100 is provided with a plurality of second fluid channels 120 and a plurality of third fluid channels 130 arranged along its radial direction, the second fluid channels 120 and the third fluid channels 130 are arranged in sequence along the axial direction of the main shaft 110, the first fluid channel 111 connects the second fluid channel 120 and the third fluid channel 130, and the second fluid channel 120 and the third fluid channel 130 are both connected to the cooling chamber 140. The main shaft 110 is connected to an external water source, and the cooling water flows from the first channel to the other end to complete the circulation. During the process, the cooling water flows into the second channel and the third channel and then flows into the cooling chamber 140. The cooling jacket 200 is a copper jacket. The cooling water in the cooling chamber 140 cools the cooling jacket 200, thereby cooling the film attached to the surface of the cooling jacket 200.

[0025] A first spoiler 210 is provided in the cooling chamber 140, and a first spoiler hole 211 is provided on the first spoiler 210. The cooling water in the cooling chamber 140 can be stirred by the first spoiler 210 and the first spoiler hole 211, so as to reduce the stagnation of the cooling water and increase the fluidity of the cooling water, so that the cooling water of different temperatures can collide and blend with each other, so as to even out the temperature of the cooling water in various places in the cooling chamber 140, so as to make the stability of the cooling jacket 200 more uniform and reduce the influence of temperature changes on the film preparation. A first plug-in slot 101 is provided on one side of the cylinder 100 facing the cooling jacket 200, and a second plug-in slot 301 is provided on one side of the cooling jacket 200 facing the cylinder 100. A first plug-in portion 212 inserted into the first plug-in slot 101 and a second plug-in portion 213 inserted into the second plug-in slot 301 are respectively provided at both ends of the first spoiler 210, so as to ensure the stability of the fixing of the first spoiler 210.

[0026] Meanwhile, a second spoiler 310 extending from the center of the cooling jacket 200 is provided on the cover plate 300, and a second spoiler hole 311 is provided on the second spoiler 310. The cover plate 300 is rotatably connected to the cooling jacket 200 and the barrel 100, and the cover plate 300 is driven to rotate by a motor, and the main shaft 110 is also driven to rotate by a motor, so that the barrel 100 can rotate. The rotation direction of the cover plate 300 is opposite to that of the cylinder body 100, so that the rotation directions of the first spoiler 210 and the second spoiler 310 are opposite. At the same time, the first spoiler 210 and the second spoiler 310 are both inclined and in opposite directions. The first spoiler 210 is provided with a plurality of first spoiler holes 211, which are inclined and in opposite directions to the inclination of the first spoiler 210. The second spoiler 310 is provided with a plurality of second spoiler holes 311, which are inclined and in opposite directions to the inclination of the second spoiler 310. The first spoiler 210 and the second spoiler 310 cause more intense disturbance of the cooling water in the cooling chamber 140, thereby further improving the uniformity of the cooling water stability at various locations in the cooling chamber 140.

[0027] The end faces of the cooling sleeve 200 and the cylinder 100 are both provided with mounting grooves 150, the cover plate 300 is provided with a rotating portion 320 extending into the mounting groove 150, the inner wall of the mounting groove 150 is provided with a first support ring 160 extending toward the rotating portion 320, the first support ring is provided with a first receiving groove 161, the rotating portion 320 is provided with a second support ring extending toward the first support ring 160, the second support ring is provided with a second receiving groove, and a ball 500 is embedded between the first receiving groove 161 and the second receiving groove, the ball 500 enables the first support ring 160 and the second support ring to rotate relative to each other, thereby enabling the cover plate 300 to rotate relative to the cylinder 100 and the cooling sleeve 200.

[0028] The inner wall of the installation groove 150 is provided with a third support ring 170 extending toward the rotating part 320. A seal is provided in the installation groove 150. The seal includes a body 400. One end of the body 400 is provided with a connecting groove 410 for inserting the third support ring 170. The other end of the body 400 is provided with a first abutting part 420 and a second abutting part 430 extending toward the rotating part 320. The first abutting part 420 and the second abutting part 430 are both inclined and inclined in opposite directions. The first abutting part 420 and the second abutting part 430 form a herringbone structure, which can ensure sealing performance. At the same time, the first abutting portion 420 is provided with an extension portion 421 extending toward the cover plate 300 and abutting against the cover plate 300. The extension portion 421 and the first abutting portion 420 constitute a groove opening toward the second spoiler 310. When cooling water overflows into the groove, the rotation of the cylinder 100 can drive the rotation of the seal. Under the centrifugal action, the cooling water in the groove will generate pressure on the groove, thereby generating pressure on the first abutting portion 420 and the second abutting portion 430, thereby further improving the tightness of the first abutting portion 420, the second abutting portion 430 and the rotating portion 320, thereby enhancing the sealing performance.

[0029] The opening of the connecting groove 410 extends with a first support portion 440 that fits with the side of the third support ring 170 facing the second support ring and the side wall of the mounting groove 150. The end of the first support portion 440 is provided with a second support portion 450 extending toward the rotating portion 320. The end of the second support portion 450 is provided with a third abutting portion 460. The second support portion 450 is inclined toward the body 400, and the third abutting portion 460 is inclined toward the body 400 and forms an obtuse angle with the second support portion 450. The sealing member itself has a certain elasticity. The inclined second support portion 450 and the third abutting portion 460 connected to the second support portion 450 can maintain the fit with the rotating portion 320 under the action of their own elasticity, and can ensure the sealing performance. At the same time, it also forms a double-layer sealing structure together with the herringbone structure formed by the first abutting portion 420 and the second abutting portion 430, further improving the performance of the sealing cover.

[0030] The body 400 is provided with a third support portion 470 extending toward the second support portion 450 and abutting against the second support portion 450. The first support portion and the second support portion enclose a sealed cavity 180 in the mounting groove 150. The third support portion 470 divides the sealed cavity 180 into a first chamber 181 close to the rotating portion 320 and a second chamber 182 close to the side wall of the mounting groove. The second support portion 450 and the third abutting portion 460 form a groove opening toward the cylinder 100, which is the same as the groove formed by the first abutting portion 420 and the extension portion 421. When cooling water enters the first cavity 181, the cooling water flowing into the groove formed by the second support portion 450 and the third abutting portion 460 can increase the pressure on the third abutting portion 460 under the centrifugal effect, so that the third abutting portion 460 and the rotating portion 320 fit more closely, further improving the sealing performance. At the same time, when the cooling water enters the second chamber 182, the cooling water will increase the pressure on the third support part 470 under the centrifugal effect, thereby increasing the pressure of the third support on the second support part 450, and further increasing the pressure on the third abutment part 460, so that the third abutment part 460 and the rotating part 320 fit more closely, further improving the sealing performance.

[0031] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A cooling roller, characterized in that: The invention comprises a cylinder (100), both ends of which are connected to cover plates (300), a cooling sleeve (200) is provided on the outside of the cylinder (100), the cover plate (300) is connected to the cooling sleeve (200), the cylinder (100), the cooling sleeve (200) and the cover plate (300) form a cooling chamber (140), a main shaft (110) is provided at the center of the cylinder, the main shaft (110) is provided with a first fluid channel (111) arranged along its axial direction, the cylinder (100) is provided with a plurality of second fluid channels (120) and a plurality of third fluid channels (130) arranged along its radial direction, the second fluid channels (120) and the third fluid channels (130) are arranged along the main shaft (110) are arranged in sequence in the axial direction, the first fluid channel (111) is connected to the second fluid channel (120) and the third fluid channel (130), the second fluid channel (120) and the third fluid channel (130) are both connected to the cooling chamber (140), a first spoiler (210) is arranged in the cooling chamber (140), the cover plate (300) is rotatably connected to the cooling jacket (200) and the cylinder (100), the inner wall of the cover plate (300) is provided with a second spoiler (310) extending toward the center of the cooling jacket (200), one side of the first spoiler (210) is connected to the cooling jacket (200), and the other side is connected to the cylinder (100), The rotation direction of the cover plate (300) is opposite to the rotation direction of the main shaft (110) so that the rotation direction of the first spoiler (210) is opposite to the rotation direction of the second spoiler (310); the first spoiler (210) and the second spoiler (310) are both inclined and inclined in opposite directions; the first spoiler (210) is provided with a plurality of first spoiler holes (211); the first spoiler holes (211) are inclined and inclined in opposite directions to the first spoiler (210); the second spoiler (310) is provided with a plurality of second spoiler holes (311); the second spoiler holes (311) are inclined and inclined in opposite directions to the second spoiler (310); the cooling jacket (200) ) and the end surface of the cylinder (100) are both provided with a mounting groove (150), the cover plate (300) is provided with a rotating portion (320) extending into the mounting groove (150), the inner wall of the mounting groove (150) is provided with a first support ring (160) extending toward the rotating portion (320), the first support ring (160) is provided with a first receiving groove (161), the rotating portion (320) is provided with a second support ring extending toward the first support ring (160), the second support ring is provided with a second receiving groove, and a ball (500) is embedded between the first receiving groove (161) and the second receiving groove so that the rotating portion (320) and the mounting groove (150) are rotatably connected.

2. A cooling roller according to claim 1, characterized in that: The inner wall of the installation groove (150) is provided with a third support ring (170) extending toward the rotating part (320), and a sealing member is provided in the installation groove (150), and the sealing member comprises a main body (400), one end of the main body (400) is provided with a connecting groove (410) for inserting the third support ring (170), and the other end of the main body (400) is provided with a first abutting portion (420) and a second abutting portion (430) extending toward the rotating part (320), and the first abutting portion (420) and the second abutting portion (430) are both inclined and inclined in opposite directions.

3. A cooling roller according to claim 2, characterized in that: A first support portion (440) extends from the opening of the connecting groove (410) and is in contact with a side of the third support ring (170) facing the second support ring and the side wall of the mounting groove (150); a second support portion (450) extending toward the rotating portion (320) is provided at the end of the first support portion (440); a third abutment portion (460) is provided at the end of the second support portion (450); the second support portion (450) is inclined toward the main body (400); and the third abutment portion (460) is inclined toward the main body (400) and forms an obtuse angle with the second support portion (450).

4. A cooling roller according to claim 3, characterized in that: The main body (400) is provided with a third support portion (470) extending toward the second support portion (450) and abutting against the second support portion (450), the first support portion (440) and the second support portion (450) form a sealed cavity (180) in the installation groove, and the third support portion (470) divides the sealed cavity (180) into a first chamber (181) close to the rotating portion (320) and a second chamber (182) close to the side wall of the installation groove (150).

5. A cooling roller according to claim 2, characterized in that: The first abutting portion (420) is provided with an extending portion (421) extending toward the cover plate (300) and abutting against the cover plate (300), and the extending portion (421) and the first abutting portion (420) form a groove opening toward the second spoiler (310).

6. A cooling roller according to claim 1, characterized in that: A first plug-in slot (101) is provided on one side of the cylinder (100) facing the cooling sleeve (200), a second plug-in slot (301) is provided on one side of the cooling sleeve (200) facing the cylinder (100), and a first plug-in portion (212) inserted into the first plug-in slot (101) and a second plug-in portion (213) inserted into the second plug-in slot (301) are respectively provided at two ends of the first spoiler (210).

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