Cooling roller convenient for long-term operation

Abstract

The utility model relates to the technical field of cooling rollers, and aims to solve the problems that the continuous heat dissipation effect is poor and the risk of liquid leakage exists due to the fact that cooling liquid is cooled and dissipated indirectly through a heat conduction rod and air exchange. The utility model provides a cooling roller convenient for long-term operation. The cooling roller comprises a rotating roller body and a heat exchange assembly, the heat exchange assembly comprises a barrel and a plurality of heat exchange grooves. The multiple heat exchange grooves are annularly formed in the outer portion of the barrel and communicate with an inner cavity of the barrel. A liquid storage cavity is reserved between the barrel body and the inner wall of the rotating roller body; the liquid storage cavity is formed in the heat exchange groove; one end of the cylinder body is communicated with a cold air pipe; one end of the cylinder body is communicated with an exhaust pipe; cold air is input into the barrel through the cold air pipe and diffused into the heat exchange grooves, the heat exchange contact area between the cold air and cooling liquid in the liquid storage cavity is increased through the heat exchange grooves, the heat exchange efficiency and the heat dissipation speed of the roller body are improved, and leakage of the cooling liquid is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling rollers, in particular to a cooling roller which is convenient for long-term operation. Background Art

[0002] The cooling roller is also called the heat-conducting roller. Its function is to reduce the deformation of the material caused by excessive temperature or shrinkage during cooling when the film coil is rolled up, thereby improving the product qualification rate. However, the cooling roller often has the problem that the cooling effect will deteriorate after long-term use. To solve this problem, the prior art improves the heat dissipation efficiency of the cooling roller by setting a heat dissipation device and a heat exchange device. For example, the cooling roller disclosed in the patent with the publication number CN219214385U has a water-proof membrane connected to its cooling chamber, and a coolant is provided between the water-proof membrane and the cold rolling roller body. The ventilation mechanism is provided in the cooling chamber, and the cooling chamber is cooled by ventilation, and the coolant is further transferred to the water-proof membrane through the heat-conducting rod to dissipate the heat.

[0003] However, the method of indirectly cooling the cooling liquid by using a heat-conducting rod and ventilation cannot actually meet the cooling requirements of the cooling roller in continuous production. In addition, one end of the heat-conducting rod penetrates the water-isolating membrane for contact heat exchange, which is prone to coolant leakage.

[0004] Based on the above description, there is an urgent need for a cooling roller that is easy to dissipate heat and suitable for long-term operation. Utility Model Content

[0005] The utility model aims to provide a cooling roller which is convenient for long-term operation, and aims to solve the technical problem in the prior art that the cooling roller is indirectly cooled and dissipated by the coolant by using a heat-conducting rod and air exchange, which not only has poor continuous heat dissipation effect, but also is prone to the risk of leakage.

[0006] The embodiments of the present invention are implemented by the following technical solutions:

[0007] A cooling roller that is easy to operate for a long time, comprising a rotating roller body and a heat exchange component; the heat exchange component comprises a cylinder body and a plurality of heat exchange grooves; the plurality of heat exchange grooves are arranged on the outside of the cylinder body and are connected to the inner cavity of the cylinder body; a liquid storage cavity is left between the cylinder body and the inner wall of the rotating roller body; the heat exchange groove is arranged in the liquid storage cavity; one end of the cylinder body is connected to a cold air pipe; one end of the cylinder body is connected to an exhaust pipe.

[0008] Preferably, the slot width of the heat exchange slot is smaller than the slot bottom width of the heat exchange slot.

[0009] Preferably, the bottom of the heat exchange groove is an arc-shaped plate; the arc-shaped plate protrudes toward the inner wall of the rotating roller body.

[0010] Preferably, both ends of the cylinder are covered with sealing plates; the cold air duct and the exhaust air duct are both passed through the sealing plates.

[0011] Preferably, both side ends of the rotating roller body are provided with ring covers; the cold air duct and the exhaust duct pass through the sealing plate and the ring cover in sequence from the inside to the outside; a reinforcement ring is provided at one end of the cold air duct and the exhaust duct passing through the ring cover.

[0012] Preferably, it further comprises a diverter assembly; the diverter assembly comprises a connecting shaft and a plurality of diverter plates; the diverter plates are arranged around the outside of the connecting shaft and extend toward the notch of the heat exchange groove.

[0013] Preferably, the cross-section of the diverter plate is fan-shaped; the contracted end of the fan-shaped is connected to the connecting shaft; and the expanded end of the fan-shaped extends toward the notch of the heat exchange groove.

[0014] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0015] The utility model uses a cold air pipe to input cold air into the cylinder body and further diffuses it into multiple heat exchange grooves. The heat exchange contact area with the coolant in the liquid storage chamber is increased through the heat exchange grooves. Through the subsequent promotion of cold air, the hot air after heat exchange is quickly sent out of the exhaust pipe, thereby improving the heat exchange efficiency and the heat dissipation speed of the roller body. It can also avoid the defects of the prior art that the heat exchange of the water-proof membrane with a heat-conducting rod is used, which is easy to cause cooling liquid leakage and inconvenient structural installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is the front view of the utility model;

[0018] Figure 2 It is a side view of the utility model;

[0019] Figure 3 for Figure 2 A cross-sectional view of

[0020] Figure 4 for Figure 3 sectional view of .

[0021] Icons: 1-rotating roller, 2-heat exchange assembly, 21-cylinder, 22-heat exchange tank, 3-cold air duct, 4-exhaust duct, 5-sealing plate, 6-ring cover, 7-reinforcement ring, 8-diverter assembly, 81-connecting shaft, 82-diverter plate. DETAILED DESCRIPTION

[0022] Example 1

[0023] See also Figures 1 to 4 The utility model provides the following technical solutions: a cooling roller that is convenient for long-term operation and is suitable for the situation where the cooling roller operates continuously.

[0024] Specifically, Figure 1 and Figure 4 As shown, a cooling roller that is easy to operate for a long time includes a rotating roller body 1 and a heat exchange component 2; the heat exchange component 2 includes a cylinder 21 and a plurality of heat exchange grooves 22; the plurality of heat exchange grooves 22 are arranged on the outside of the cylinder 21 and are connected with the inner cavity of the cylinder 21; a liquid storage cavity is left between the cylinder 21 and the inner wall of the rotating roller body 1; the heat exchange groove 22 is arranged in the liquid storage cavity; one end of the cylinder 21 is connected with the cold air pipe 3; one end of the cylinder 21 is connected with the exhaust pipe 4.

[0025] In this embodiment, the cold air pipe 3 inputs cold air into the cylinder 21 and further diffuses it into a plurality of heat exchange grooves 22. The heat exchange grooves 22 increase the heat exchange contact area with the coolant in the liquid storage chamber. Through the subsequent promotion of cold air, the hot air after heat exchange is quickly sent out of the exhaust pipe 4, thereby improving the heat exchange efficiency and the heat dissipation speed of the roller body 1. It can also avoid the defects of the prior art that the heat exchange of the water-proof membrane with a heat-conducting rod is easy to cause cooling liquid leakage and inconvenient structural installation.

[0026] Specifically, Figure 4 As shown, the slot width of the heat exchange slot 22 is smaller than the slot bottom width of the heat exchange slot 22 .

[0027] In this embodiment, the cross-section of the heat exchange groove 22 is an isosceles trapezoid, and the narrower end of the isosceles trapezoid is a notch; the width of the notch is narrower than the width of the groove bottom, which makes it easy to expand the heat exchange area while squeezing and accelerating the cooling air, so that the wind rushes to the bottom of the groove and is discharged at a reduced speed; in addition, in order to further increase the heat exchange area, the groove bottom of the heat exchange groove 22 is an arc plate; the arc plate protrudes toward the inner wall of the rotating roller body 1.

[0028] In this embodiment, the cylinder 21 and the multiple heat exchange grooves 22 together constitute the heat exchange component 2, and its overall structural shell is described as being based on the cylinder 21, with the cylinder wall protruding outward to form multiple heat exchange grooves 22, and concave gaps are left between the vector heat exchange grooves 22. The bottom of the concave gap is arc-shaped, further expanding the heat exchange area.

[0029] Specifically, Figure 2 and Figure 3As shown, both ends of the cylinder 21 are covered with sealing plates 5; the cold air pipe 3 and the exhaust air pipe 4 are both passed through the sealing plates 5. Both sides of the rotating roller body 1 are provided with ring covers 6; the cold air pipe 3 and the exhaust air pipe 4 pass through the sealing plates 5 and the ring covers 6 in sequence from the inside to the outside; and a reinforcement ring 7 is provided at one end of the cold air pipe 3 and the exhaust air pipe 4 passing through the ring cover 6.

[0030] In the present embodiment, both ends of the heat exchange groove 22 close to the cold air pipe 3 and the exhaust pipe 4 are against the ring cover 6, thereby realizing the separation of the liquid storage cavity and the groove cavity; in addition, in order to facilitate the replacement of the coolant in the liquid storage cavity, the ring cover 6 can be further provided with a pipe head and a valve connected to the liquid storage cavity; by providing the sealing plate 5, it is convenient to install the cold air pipe 3, and it is also convenient to set up and fix the heat exchange component 2 in the liquid storage cavity of the roller body through the cold air pipe 3 and the exhaust pipe 4, and fix it by the reinforcement ring 7.

[0031] Specifically, Figure 2 and Figure 3 As shown, it also includes a diverter assembly 8 ; the diverter assembly 8 includes a connecting shaft 81 and a plurality of diverter plates 82 ; the diverter plates 82 are arranged around the outside of the connecting shaft 81 and extend toward the notch of the heat exchange groove 22 .

[0032] In this embodiment, the cold air pipe 3 delivers cold air to one end of the diverter assembly 8, and performs preliminary diversion of the delivered cold air through a plurality of diverter plates 82, so that the cold air enters the groove cavity of the heat exchange groove 22 through the notch of the heat exchange groove 22, and cools the groove wall. The cross section of the diverter plate 82 is fan-shaped; the contraction end of the fan is connected to the connecting shaft 81; the expansion end of the fan extends toward the notch of the heat exchange groove 22, and can accurately divert the air in accordance with the cross-sectional shape of the heat exchange groove.

[0033] The specific implementation process is as follows: cold air is delivered to the side end of the roller body 1 through the cold air pipe. After the cold air enters the roller body 1, it is first diverted by the airflow component 8, and then diverted to each heat exchange groove 22 through a plurality of diversion plates 82. The coolant in the liquid storage cavity is heat exchanged through the heat exchange groove 22. The hot air after heat exchange is discharged from the exhaust pipe 4 along with the advancement of subsequent cold air, thereby realizing continuous heat dissipation of the coolant, so as to facilitate the continuous operation of the roller body 1.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cooling roller that is convenient for long-term operation, comprising a rotating roller body (1), characterized in that: It also includes a heat exchange component (2); the heat exchange component (2) includes a cylinder (21) and a plurality of heat exchange grooves (22); the plurality of heat exchange grooves (22) are arranged around the outside of the cylinder (21) and are in communication with the inner cavity of the cylinder (21); a liquid storage cavity is reserved between the cylinder (21) and the inner wall of the rotating roller body (1); the heat exchange grooves (22) are arranged in the liquid storage cavity; one end of the cylinder (21) is in communication with a cold air pipe (3); and one end of the cylinder (21) is in communication with an exhaust pipe (4).

2. The cooling roller for long-term operation according to claim 1, characterized in that: The slot width of the heat exchange slot (22) is smaller than the slot bottom width of the heat exchange slot (22).

3. The cooling roller for long-term operation according to claim 2, characterized in that: The bottom of the heat exchange groove (22) is an arc-shaped plate; the arc-shaped plate protrudes toward the inner wall of the rotating roller body (1).

4. The cooling roller for long-term operation according to claim 2, characterized in that: Both ends of the cylinder (21) are covered with sealing plates (5); the cold air pipe (3) and the exhaust air pipe (4) are both passed through the sealing plates (5).

5. The cooling roller for long-term operation according to claim 4, characterized in that: Ring covers (6) are provided at both side ends of the rotating roller body (1); the cold air pipe (3) and the exhaust air pipe (4) pass through the sealing plate (5) and the ring cover (6) in sequence from the inside to the outside; and a reinforcement ring (7) is provided at one end of the cold air pipe (3) and the exhaust air pipe (4) passing through the ring cover (6).

6. The cooling roller for long-term operation according to any one of claims 1 to 5, characterized in that: It also includes a flow splitter assembly (8); the flow splitter assembly (8) includes a connecting shaft (81) and a plurality of flow splitter plates (82); the flow splitter plates (82) are arranged around the outside of the connecting shaft (81) and extend toward the notch of the heat exchange groove (22).

7. The cooling roller for long-term operation according to claim 6, characterized in that: The cross section of the diverter plate (82) is fan-shaped; the contracted end of the fan-shaped is connected to the connecting shaft (81); and the expanded end of the fan-shaped extends toward the notch of the heat exchange groove (22).

Images