A horizontal rotating cooling roller

Abstract

The invention discloses a horizontally rotating cooling roller, comprising a cooling roller, wherein the cooling roller has two groups, an upper group and an lower group, a guide roller is arranged on one side of the cooling roller, a rotating drive is arranged on the other side of the cooling roller, the rotating drive is connected with a rotating structure, the rotating structure is connected with the cooling roller, the cooling roller comprises a first outer tube, a second outer tube, a second inner tube and a first inner tube are sequentially sleeved in the first outer tube, one end of the second outer tube is connected with an outer air inlet pipe which penetrates the first outer tube, an end of the first inner tube which is away from the outer air inlet pipe is connected with the inner air inlet pipe, an outer air inlet duct is arranged in the outer air inlet pipe, an inner air inlet duct is arranged in the inner air inlet pipe, and both the outer air inlet duct and the inner air inlet duct are connected with the inside of the cooling roller; the rotating structure has two groups and is sequentially connected with the cooling rollers, and when cooling the film, fast and complete cooling is guaranteed, the film produced by cooling has uniform thickness and high transparency, and the qualified rate of finished products of the tubular film production equipment is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of tubular film production equipment, in particular to a horizontal rotating cooling roller. Background Art

[0002] Tubular film production equipment is a production equipment that heats and melts plastic particles and then blows them into thin films. Therefore, the film needs to go through a cooling and shaping process before it can be rolled up. If the film is cooled naturally at room temperature, the room temperature is relatively high, generally around 20°C, and has a certain degree of volatility. Therefore, the cooling of the film at room temperature is actually neither complete nor uniform. In this way, the shrinkage coefficient of the rolled film far exceeds its theoretical value, resulting in serious uneven thickness of the film after the final shrinkage. Therefore, a cooling device specifically for cooling the film is needed.

[0003] The existing cooling device for film uses air as the main cooling medium. Its working principle is to let room temperature or low temperature air enter the tubular film through the air duct to cool the tubular film and thus achieve the effect of cooling the film bubble. However, the biggest disadvantage of this cooling device is that the heat loss is large and the cooling effect is poor, resulting in uneven thickness and poor transparency of the produced film, which cannot meet production requirements. Therefore, it is necessary to further improve it. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a horizontal rotating cooling roller, which ensures rapid and complete cooling of the film when cooling the film. The film produced by cooling has uniform thickness and high transparency, which greatly improves the finished product qualification rate of tubular film production equipment.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a horizontally rotating cooling roller, comprising a cooling roller, the cooling roller having two groups, an upper group and an lower group, a guide roller is arranged on one side of the cooling roller, a rotation drive is arranged on the other side of the cooling roller, the rotation drive is connected with a rotation structure, the rotation structure is connected with the cooling roller, the cooling roller comprises a first outer tube, a second outer tube, a second inner tube and a first inner tube are sequentially sleeved in the first outer tube, one end of the second outer tube is connected with an outer air inlet pipe which passes through the first outer tube, an end of the first inner tube which is away from the outer air inlet pipe is connected with an inner air inlet pipe, an outer air inlet duct is arranged in the outer air inlet pipe, an inner air inlet duct is arranged in the inner air inlet pipe, the outer air inlet duct and the inner air inlet duct are both connected with the interior of the cooling roller;

[0006] The rotating structures have two groups and are connected to the cooling rollers in sequence. The rotating drives have two groups and are meshed and matched up and down. Each group of the rotating structures is connected to the corresponding rotating drives in sequence. The two groups of cooling rollers rotate horizontally and staggeredly under the driving of the rotating drives.

[0007] As a preferred technical solution of the present invention, the other end of the outer air inlet pipe is provided with an outer air inlet, and an outer air inlet duct is formed between the first outer tube and the second outer tube, the outer air inlet duct is connected with the outer air inlet via a through hole penetrating the outer air inlet pipe, and an outgoing air hole connected with the outer air inlet duct is opened on the outer wall of the first outer tube, the other end of the inner air inlet pipe passes through the first outer tube and is provided with an inner air inlet, an inner air inlet duct is formed in the first inner tube, the inner air inlet duct passes through the inner air inlet pipe and is connected with the inner air inlet, the other end of the inner air inlet duct passes through the first inner tube and is connected with an inner air outlet arranged between the second outer tube and the second inner tube, and the other end of the inner air outlet is located in the gap between the inner air inlet pipe and the second inner tube and is connected with the inner air outlet.

[0008] As a preferred technical solution of the present invention, there are a plurality of outgoing air holes distributed in an array along the length direction of the first outer tube, and the openings of the outgoing air holes are oriented toward the side away from the guide roller.

[0009] As a preferred technical solution of the present invention, the rotary drive includes a frame, on which two second rotating shafts distributed up and down are rotatably mounted, and the second rotating shafts are sequentially connected with upper gears and lower gears distributed up and down that mesh with the rotating structure, and each of the second rotating shafts is connected with a meshing gear, and the two second rotating shafts mesh with each other through the meshing gears.

[0010] As a preferred technical solution of the present invention, the rotating structure includes a first rotating shaft rotatably installed on the frame, the first rotating shaft has two and is staggered up and down, one end of the first rotating shaft is connected to a large circular gear matching the upper gear, and the other end of the first rotating shaft is connected to a half gear meshing with the lower gear.

[0011] As a preferred technical solution of the present invention, a support plate is installed on the first rotating shaft, support frames are installed at both ends of the cooling roller, and the cooling roller is installed on the support plate through the support frames.

[0012] As a preferred technical solution of the present invention, connecting pipes are connected to both ends of the cooling roller, and regulating valves are provided on the connecting pipes. One of the connecting pipes is connected to an external air inlet, and the other connecting pipe is connected to an internal air inlet.

[0013] As a preferred technical solution of the present invention, a fan is further provided on one side of the cooling roller, and the output end of the fan is connected to an external air inlet.

[0014] As a preferred technical solution of the present invention, there are two support plates and they are symmetrically arranged on the left and right. Each support plate is equipped with a limit ring, and the two limit rings are staggered up and down. When the cooling roller is perpendicular to the support plate, the free end of the limit ring abuts against the frame.

[0015] As a preferred technical solution of the present invention, adjustment devices for adjusting the distance between the guide roller and the cooling roller are provided on both sides of the guide roller.

[0016] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0017] 1. The cooling roller is arranged such that the second outer tube, the second inner tube and the first inner tube are sequentially sleeved in the first outer tube, and an inner air inlet duct connected to the inner air inlet duct and an outer air inlet duct connected to the outer air inlet duct are formed in the inner tube, and the outer air inlet duct is wrapped around the inner air inlet duct in the outer layer. By forming two layers of air ducts wrapped around each other inside the cooling roller and realizing air inlet and outlet at both ends of the cooling roller, circulation ventilation cooling on both sides of the cooling roller is realized, which effectively increases the cooling efficiency of the cooling roller during ventilation cooling. When the cooling roller is cooling, the consistency of the overall temperature of the cooling roller is achieved at the same time, avoiding the situation where the local temperature is too high or too low, so that when the film is cooled, the cooling is ensured to be fast and complete, and the film produced by cooling has uniform thickness and high transparency, which greatly improves the qualified rate of finished products of the tubular film production equipment;

[0018] 2. By setting a rotating structure to connect the cooling rollers, setting two groups of cooling rollers distributed up and down, and setting a rotating drive to drive the rotating structure, the two cooling rollers can swing alternately and cool the film at the same time, further increasing the working efficiency of film cooling, thereby improving the efficiency of tubular film production and greatly improving the output of tubular film. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the cooling roller in the present invention;

[0021] Figure 3 It is a cross-sectional schematic diagram of the cooling roller in the present invention;

[0022] Figure 4 is a cross-sectional schematic diagram of the second outer tube in the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the second outer tube in the present invention;

[0024] Figure 6 It is a structural schematic diagram of the inner air outlet in the present invention;

[0025] Figure 7 It is a structural schematic diagram of the rotating structure and the rotating drive in the present invention.

[0026] Among them: 1. guide roller; 2. adjustment device; 3. rotating structure; 31. large circular gear; 32. half gear; 33. first rotating shaft; 34. support plate; 4. rotation drive; 41. upper gear; 42. lower gear; 43. second rotating shaft; 44. meshing gear; 45. frame; 5. cooling roller; 51. first inner tube; 52. second inner tube; 53. second outer tube; 54. first outer tube; 61. outer air inlet; 62. outer air hole; 63. inner air inlet; 64. inner air outlet; 65. inner air outlet; 66. inner air inlet; 67. outer air inlet; 7. outer air inlet pipe; 8. inner air inlet pipe; 9. regulating valve; 10. connecting pipe; 11. fan; 12. support frame; 13. limit ring. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0028] like Figure 1-7 As shown, the present invention provides a horizontal rotating cooling roller, including a cooling roller 5, the cooling roller 5 has two groups, an upper group and an lower group, a guide roller 1 is provided on one side of the cooling roller 5, a rotation drive 4 is provided on the other side of the cooling roller 5, the rotation drive 4 is connected to a rotation structure 3, the rotation structure 3 is connected to the cooling roller 5, the cooling roller 5 includes a first outer tube 54, a second outer tube 53, a second inner tube 52 and a first inner tube 51 are sequentially sleeved in the first outer tube 54, one end of the second outer tube 53 is connected to an outer air inlet pipe 7 that passes through the first outer tube 54, and an end of the first inner tube 51 away from the outer air inlet pipe 7 is connected to an inner air inlet pipe 8, an outer air inlet duct 61 is provided in the outer air inlet pipe 7, an inner air inlet duct 63 is provided in the inner air inlet pipe 8, and both the outer air inlet duct 61 and the inner air inlet duct 63 are communicated with the interior of the cooling roller 5;

[0029] There are two groups of rotating structures 3 which are connected to cooling rollers 5 in sequence, there are two rotating drives 4 which are meshed and matched up and down, each group of rotating structures 3 is connected to the corresponding rotating drive 4 in sequence, and the two groups of cooling rollers 5 rotate horizontally and staggeredly under the drive of the rotating drive 4.

[0030] When designing the horizontally rotating cooling roller, the cooling roller 5 is arranged such that the second outer tube 53, the second inner tube 52 and the first inner tube 51 are sequentially sleeved in the first outer tube 54, and an inner air inlet duct 63 connected to the inner air inlet pipe 8 and an outer air inlet duct 61 connected to the outer air inlet pipe 7 are formed in the cooling roller 5, and the outer air inlet duct 61 wraps the inner air inlet duct 63 in the outer layer. By forming two layers of air ducts wrapped with each other inside the cooling roller 5 and realizing air inlet and outlet at both ends of the cooling roller 5, circulating ventilation cooling is realized on the inner and outer sides of the cooling roller 5, which effectively increases the cooling efficiency of the cooling roller 5 during ventilation cooling, and at the same time realizes the cooling of the cooling roller 5 during cooling. The consistency of the overall temperature of the cooling roller 5 avoids the situation where the local temperature is too high or too low, thereby ensuring that the cooling is fast and complete when the film is cooled. The film produced by cooling has uniform thickness and high transparency, which greatly improves the qualified rate of finished products of the tubular film production equipment. At the same time, by setting a rotating structure 3 to connect the cooling roller 5, two groups of cooling rollers 5 distributed up and down are set, and a rotating drive 4 is set to drive the rotating structure 3, the two cooling rollers 5 are staggered and swung, and the film is cooled at the same time, which further increases the working efficiency of film cooling, thereby improving the efficiency of tubular film production and greatly improving the output of tubular film.

[0031] Preferably, an outer air inlet 67 is provided at the other end of the outer air inlet pipe 7, an outer air inlet duct 61 is formed between the first outer tube 54 and the second outer tube 53, the outer air inlet duct 61 is connected with the outer air inlet 67 through a through hole penetrating the outer air inlet pipe 7, an outer air hole 62 connected with the outer air inlet duct 61 is provided on the outer wall of the first outer tube 54, the other end of the inner air inlet pipe 8 passes through the first outer tube 54 and is provided with an inner air inlet 66, an inner air inlet duct 63 is formed in the first inner tube 51, the inner air inlet duct 63 passes through the inner air inlet pipe 8 and is connected with the inner air inlet 66, the other end of the inner air inlet duct 63 passes through the first inner tube 51 and is connected with an inner air outlet duct 64 provided between the second outer tube 53 and the second inner tube 52, the other end of the inner air outlet duct 64 is located in the gap between the inner air inlet pipe 8 and the second inner tube 52 and is connected with an inner air outlet 65;

[0032] The outer air inlet duct 61 directly cools the outer surface of the cooling roller 5, and the inner air inlet duct 63 cools the outer air inlet duct 61 inside the cooling roller 5, so that the cooling temperatures of the inner air inlet duct 63 and the outer air inlet duct 61 are consistent, ensuring the uniformity of the overall temperature of the cooling roller 5.

[0033] Preferably, there are a plurality of outgoing air holes 62 distributed in an array along the length direction of the first outer tube 54 , and the outgoing air holes 62 are opened toward the side away from the guide roller 1 .

[0034] The outgoing air holes 62 distributed in an array are helpful for heat dissipation of the cooling roller 5. The outgoing air holes 62 are arranged on the side away from the guide roller 1 to avoid blowing toward the film being produced.

[0035] Preferably, the rotary drive 4 includes a frame 45, on which two second rotating shafts 43 distributed up and down are rotatably mounted, and the second rotating shafts 43 are sequentially connected with an upper gear 41 and a lower gear 42 distributed up and down and meshing with the rotating structure 3, and each second rotating shaft 43 is connected with a meshing gear 44, and the two second rotating shafts 43 are meshed and matched with each other through the meshing gears 44; the staggered rotation of the two second rotating shafts 43 can be realized, thereby driving the staggered rotation of the rotating structure 3.

[0036] Preferably, the rotating structure 3 includes a first rotating shaft 33 rotatably mounted on a frame 45, wherein there are two first rotating shafts 33 which are staggered up and down, one end of the first rotating shaft 33 is connected to a large circular gear 31 matching the upper gear 41, and the other end of the first rotating shaft 33 is connected to a half gear 32 meshing with the lower gear 42; thereby, the staggered rotation of the rotating structure 3 can be used to drive the two cooling rollers 5 to swing staggered in the horizontal direction.

[0037] Preferably, a support plate 34 is installed on the first rotating shaft 33, and support frames 12 are installed at both ends of the cooling roller 5. The cooling roller 5 is installed on the support plate 34 through the support frames 12; the connection between the cooling roller 5 and the first rotating shaft 33 is realized, and the installation of the cooling roller 5 on the rotating structure 3 is realized.

[0038] Preferably, connecting pipes 10 are connected to both ends of the cooling roller 5, and regulating valves 9 are provided on the connecting pipes 10. One connecting pipe 10 is connected to the external air inlet 67, and the other connecting pipe 10 is connected to the internal air inlet 66. By arranging the regulating valve 9 on the connecting pipe 10, the air intake flow rate and flow velocity of the cooling roller 5 during cooling can be adjusted, thereby controlling the working efficiency of the cooling roller 5.

[0039] Preferably, a fan 11 is further provided on one side of the cooling roller 5 , and an output end of the fan 11 is connected to an external air inlet 67 .

[0040] Preferably, there are two support plates 34 and they are symmetrically arranged left and right, each support plate 34 is installed with a limit ring 13, the two limit rings 13 are staggered up and down, when the cooling roller 5 is perpendicular to the support plate 34, the free end of the limit ring 13 abuts against the frame 45; by connecting the limit ring 13 to the support plate 34, the cooling roller 5 is limited when the cooling roller 5 rotates horizontally.

[0041] Preferably, adjusting devices 2 for adjusting the distance between the guide roller 1 and the cooling roller 5 are provided on both sides of the guide roller 1; the distance between the guide roller 1 and the cooling roller 5 can be adjusted by providing the adjusting device 2.

[0042] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A horizontally rotating cooling roller, comprising a cooling roller (5), characterized in that: The cooling roller (5) has two groups, one upper group and the other lower group. A guide roller (1) is provided on one side of the cooling roller (5). A rotary drive (4) is provided on the other side of the cooling roller (5). The rotary drive (4) is connected to a rotary structure (3). The rotary structure (3) is connected to the cooling roller (5). The cooling roller (5) comprises a first outer tube (54). A second outer tube (53), a second inner tube (52) and a first inner tube (51) are sequentially sleeved inside the first outer tube (54). One end of the second outer tube (53) is connected to an outer air inlet pipe (7) that passes through the first outer tube (54). One end of the first inner tube (51) that is away from the outer air inlet pipe (7) is connected to an inner air inlet pipe (8). An outer air inlet duct (61) is provided inside the outer air inlet pipe (7). An inner air inlet duct (63) is provided inside the inner air inlet pipe (8). Both the outer air inlet duct (61) and the inner air inlet duct (63) are connected to the inside of the cooling roller (5). The rotating structure (3) has two groups and is connected to the cooling rollers (5) in sequence. The rotating drive (4) has two groups and is meshed and matched up and down. Each group of the rotating structure (3) is connected to the corresponding rotating drive (4) in sequence. The two groups of cooling rollers (5) rotate horizontally and staggeredly under the driving of the rotating drive (4). The rotary drive (4) comprises a frame (45), on which two second rotating shafts (43) are rotatably mounted and arranged vertically, and the second rotating shafts (43) are sequentially connected with an upper gear (41) and a lower gear (42) arranged vertically and meshing with the rotating structure (3), and each of the second rotating shafts (43) is connected with a meshing gear (44), and the two second rotating shafts (43) are meshed and matched with each other through the meshing gears (44); The rotating structure (3) comprises a first rotating shaft (33) rotatably mounted on a frame (45), wherein the first rotating shaft (33) has two first rotating shafts (33) and are staggeredly arranged up and down, wherein one end of the first rotating shaft (33) is connected to a large circular gear (31) matching with an upper gear (41), and the other end of the first rotating shaft (33) is connected to a half gear (32) meshingly matching with a lower gear (42).

2. A horizontally rotating cooling roller according to claim 1, characterized in that: The other end of the outer air inlet pipe (7) is provided with an outer air inlet port (67); an outer air inlet passage (61) is formed between the first outer pipe (54) and the second outer pipe (53); the outer air inlet passage (61) is connected to the outer air inlet port (67) via a through hole penetrating the outer air inlet pipe (7); an outgoing air hole (62) connected to the outer air inlet port (61) is formed on the outer wall of the first outer pipe (54); the other end of the inner air inlet pipe (8) passes through the first outer pipe (54) and is provided with an inner air inlet port (67); 6), an inner air inlet duct (63) is formed in the first inner tube (51), the inner air inlet duct (63) passes through the inner air inlet pipe (8) and is connected to the inner air inlet port (66), the other end of the inner air inlet duct (63) passes through the first inner tube (51) and is connected to the inner air outlet duct (64) arranged between the second outer tube (53) and the second inner tube (52), the other end of the inner air outlet duct (64) is located in the gap between the inner air inlet pipe (8) and the second inner tube (52) and is connected to the inner air outlet port (65).

3. A horizontally rotating cooling roller according to claim 2, characterized in that: There are a plurality of outgoing air holes (62) distributed in an array along the length direction of the first outer tube (54), and the outgoing air holes (62) are opened toward the side away from the guide roller (1).

4. The horizontal rotating cooling roller according to claim 1, characterized in that: A support plate (34) is installed on the first rotating shaft (33), support frames (12) are installed on both ends of the cooling roller (5), and the cooling roller (5) is installed on the support plate (34) through the support frame (12).

5. The horizontal rotating cooling roller according to claim 2, characterized in that: The two ends of the cooling roller (5) are connected with connecting pipes (10), and the connecting pipes (10) are provided with regulating valves (9). One of the connecting pipes (10) is connected with an external air inlet (67), and the other connecting pipe (10) is connected with an internal air inlet (66).

6. A horizontally rotating cooling roller according to claim 5, characterized in that: A fan (11) is also provided on one side of the cooling roller (5), and the output end of the fan (11) is connected to the external air inlet (67).

7. A horizontally rotating cooling roller according to claim 4, characterized in that: There are two support plates (34) which are symmetrically arranged on the left and right. Each support plate (34) is installed with a limit ring (13). The two limit rings (13) are staggered up and down. When the cooling roller (5) is perpendicular to the support plate (34), the free end of the limit ring (13) abuts against the frame (45).

8. The horizontally rotating cooling roller according to claim 1, characterized in that: Adjustment devices (2) for adjusting the distance between the guide roller (1) and the cooling roller (5) are provided on both sides of the guide roller (1).

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