Cooling and air extraction device for film production and processing

Abstract

The utility model discloses a cooling and air extraction device for film production and processing relates to film production equipment technical field, and this cooling and air extraction device includes support side platform and is located on the control platform of support side platform, still includes forming roller subassembly, synchronous guide roller subassembly, symmetrical air flue subassembly and air extraction subassembly. The utility model discloses the inclination air supply design of air flue board air inlet, combines the buffer shunt of three layers different aperture guide plate in the air bellow, makes the airflow form even cover layer on the film surface, avoids partial cooling temperature difference too big, and the tapering space structure of flat roof vertebral body shape guide flow cylinder reduces airflow resistance, and the accurate control of cooperation frequency conversion fan effectively eliminates vortex, improves heat exchange efficiency, ensures that film cooling setting effect is stable, and the synchronous rotation of the forming roller and synchronous roller driven by motor is realized through the belt drive, guarantees that the film is always in the state of tension, avoids the offset or wrinkle caused by airflow impact.

Description

Technical Field

[0001] This utility model relates to the field of thin film production equipment technology, specifically a cooling exhaust device for thin film production and processing. Background Technology

[0002] After extrusion molding, the film needs to be cooled and shaped. The cooling exhaust device is one of the key pieces of equipment. Its function is to remove heat from the surface of the film and keep the film flat by using airflow.

[0003] Existing cooling exhaust devices mostly use a single air duct on one side or top for air supply, resulting in uneven airflow distribution on the film surface. This leads to large differences in local cooling rates and makes the film prone to shrinkage and deformation. Traditional exhaust components and air duct designs are unreasonable, resulting in high airflow resistance. Furthermore, the exhaust direction is perpendicular to the film's running direction, which easily forms eddies and affects heat exchange efficiency. Traditional cooling exhaust devices lack a guiding structure that is synchronized with the film's movement. During exhaust, the impact force of the airflow can easily cause the film to shift or wrinkle, which is especially significant for thinner films. Utility Model Content

[0004] This invention provides a cooling and ventilation device for thin film production and processing, which has the advantages of efficient cooling and stable ventilation, so as to solve the problems of uneven cooling, low ventilation efficiency and easy wrinkling of thin films in existing equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cooling and exhaust device for thin film production and processing, comprising a support side platform and a control console disposed on the support side platform, and further comprising a forming roller assembly, a synchronous guide roller assembly, a symmetrical air duct assembly, and an exhaust assembly, wherein:

[0006] The supporting side platforms are symmetrically arranged, and the forming roller assembly includes a forming roller, the outer side of which is wrapped with a film.

[0007] The symmetrical air duct assembly includes an air duct plate, which is symmetrically arranged on both sides of the membrane surface. The air duct plate is provided with a plurality of air inlets at equal intervals. The air inlets are set at a 30-degree angle to the membrane surface. The two ends of the air duct plate are fitted with sleeves and are slidably engaged.

[0008] The exhaust assembly includes a wind box, a guide plate, an exhaust hood, and a variable frequency fan. The wind box is fixed to the outer side of the support platform with screws. Three layers of guide plates are welded at equal intervals on the inner wall of the wind box, and the aperture size of the three layers of guide plates decreases from the outside to the inside.

[0009] As a preferred technical solution of this utility model, the sleeve is welded to the inner side of the support platform and is connected to the air box, the exhaust hood is fixed to one side of the air box by screws and is connected to it, and a tapered guide tube is installed inside the exhaust hood.

[0010] As a preferred technical solution of this utility model, the variable frequency fan is connected to one side of the exhaust hood through a pipe, the variable frequency fan is fixed to the support side platform by bolts, the control console is electrically connected to the variable frequency fan, and screws are symmetrically fitted on the sleeve and rotate in cooperation with each other. One end of the screw passes through both ends of the air duct plate and rotates in cooperation with each other.

[0011] As a preferred embodiment of this utility model, the forming roller is welded to the forming shaft, the two ends of the forming shaft are supported by bearings and rotated together, one end of the forming shaft is welded with a forming roller, and the other end is connected to a motor through a coupling.

[0012] In a preferred embodiment of this utility model, the motor is fixed to the arc plate with screws, and the arc plate is fixed to the top of the support side platform with bolts.

[0013] As a preferred technical solution of this utility model, the synchronous guide roller assembly includes a tension roller, the two ends of which are fitted with and rotated with a support side platform, and a synchronous roller is provided on one side of the tension roller. One end of the synchronous roller is fitted with the support side platform, and the other end passes through the support side platform and is equipped with a guide wheel.

[0014] As a preferred embodiment of this utility model, the guide wheel and the forming roll are nested with a belt and rotate in cooperation, and the film is wound between the tension roller and the synchronization roller.

[0015] Compared with the prior art, this utility model provides a cooling exhaust device for thin film production and processing, which has the following beneficial effects: This utility model, through the inclined air supply design of the air inlet of the air duct plate, combined with the buffering and diversion of the airflow by three layers of guide plates with different apertures in the air box, makes the airflow form a uniform covering layer on the film surface, avoiding excessive local cooling temperature difference. At the same time, the gradually narrowing space structure of the flat-top conical guide tube reduces airflow resistance. With the precise control of the variable frequency fan, eddies are effectively eliminated, heat exchange efficiency is improved, and the film cooling and shaping effect is ensured to be stable. The device achieves synchronous rotation of the forming roller and the synchronous roller driven by the motor through belt transmission, ensuring that the film is always in a taut state and avoiding displacement or wrinkles caused by airflow impact. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a structural diagram of the forming roller assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the synchronous guide roller assembly of this utility model;

[0019] Figure 4This is a structural diagram of the symmetrical air duct assembly of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the bellows of this utility model;

[0021] Figure 6 This is a schematic diagram of the exhaust component structure of this utility model.

[0022] In the picture:

[0023] 1. Support side platform; 2. Control console; 3. Forming roller assembly; 4. Synchronous guide roller assembly; 5. Symmetrical air duct assembly; 6. Exhaust assembly; 7. Film; 31. Forming roll; 32. Forming shaft; 33. Support bearing; 34. Forming roller; 35. Motor; 36. Arc plate; 41. Tension roller; 42. Synchronous roller; 43. Guide roller; 44. Belt; 51. Air duct plate; 52. Air inlet; 53. Sleeve; 54. Screw; 61. Air box; 62. Guide plate; 63. Exhaust hood; 64. Variable frequency fan; 65. Guide tube. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0025] Please see Figures 1-6 This utility model discloses a cooling and exhaust device for thin film production and processing, including a support side platform 1 and a control console 2 disposed on the support side platform 1, and also includes a forming roller assembly 3, a synchronous guide roller assembly 4, a symmetrical air duct assembly 5, and an exhaust assembly 6, wherein:

[0026] The support side platform 1 is symmetrically arranged, and the forming roller assembly 3 includes a forming roller 31, with a film 7 wrapped around and covered on the outside of the forming roller 31.

[0027] Please refer to the appendix. Figure 4 The symmetrical air duct assembly 5 includes an air duct plate 51, which is symmetrically arranged on both sides of the surface of the membrane 7. Several air inlets 52 are equidistantly arranged on the air duct plate 51. The air inlets 52 are inclined at a 30-degree angle to the surface of the membrane. The two ends of the air duct plate 51 are fitted with sleeves 53 and are slidably engaged.

[0028] Please refer to the appendix. Figure 5 and appendix Figure 6The exhaust assembly 6 includes an air box 61, a guide plate 62, an exhaust hood 63, and a variable frequency fan 64. The air box 61 is fixed to the outer side of the support platform 1 by screws. Three layers of guide plates 62 are welded at equal intervals on the inner wall of the air box 61, and the aperture size of the three layers of guide plates 62 decreases from the outside to the inside. Specifically, the aperture setting from large to small buffers and diverts the airflow, stabilizes the airflow pressure entering the air duct, and further improves the uniformity of cooling.

[0029] The sleeve 53 is welded to the inner side of the support platform 1 and is connected to the air box 61. The exhaust hood 63 is fixed to one side of the air box 61 by screws and is connected to it. The exhaust hood 63 is equipped with a tapered guide tube 65. Specifically, the flat-topped cone-shaped guide tube 65 makes the space through which the airflow passes tapered, which greatly reduces the airflow resistance and improves the exhaust efficiency.

[0030] The variable frequency fan 64 is connected to one side of the exhaust hood 63 via a pipe. The variable frequency fan 64 is fixed to the support side platform 1 by bolts. The control console 2 is electrically connected to the variable frequency fan 64. Screws 54 are symmetrically fitted on the sleeve 53 and rotate in cooperation. One end of the screw 54 passes through both ends of the air duct plate 51 and rotates in cooperation. Specifically, the variable frequency fan 64 can automatically adjust its output according to the change of airflow resistance, maintain the stability of system pressure or flow, and ensure that the cooling process is uniform and reliable. When the screw 54 is rotated, the screw 54 and the two ends of the air duct plate 51 generate a spiral action, and then the air duct plate 51 is driven to move up and down under the limit of the sleeve 53 through the spiral force. The distance between the air duct and the surface of the film 7 is adjusted for films of different thicknesses, thereby adapting to the production of films of various specifications.

[0031] In this embodiment, when the variable frequency fan 64 starts, the air in the exhaust hood 63 and the air box 61 is continuously drawn out, thereby creating a negative pressure in the air duct plate 51 between the sleeve 53. Outside air enters from the air inlet 52 on the air duct plate 51 and is blown at an angle onto the surface of the film 7, forming a uniform airflow covering layer, avoiding excessive local cooling temperature difference and the generation of eddies. Example 2

[0032] Based on the above embodiment 1, please refer to the appendix. Figure 2 as well as Figure 3 The forming roller 31 is welded to the forming shaft 32. The two ends of the forming shaft 32 are connected to the support bearings 33 and rotate together. One end of the forming shaft 32 is welded with a forming roller 34, and the other end is connected to the motor 35 through a coupling.

[0033] The motor 35 is fixed to the arc plate 36 with screws, and the arc plate 36 is fixed to the top of the support side platform 1 with bolts.

[0034] The synchronous guide roller assembly 4 includes a tension roller 41, with both ends of the tension roller 41 fitted into and rotatably engaged with the support side platform 1. A synchronous roller 42 is provided on one side of the tension roller 41, with one end of the synchronous roller 42 fitted into the support side platform 1 and the other end passing through the support side platform 1 and equipped with a guide wheel 43.

[0035] The guide roller 43 and the forming roller 34 are nested with a belt 44 and rotate in cooperation. The film 7 is wound between the tension roller 41 and the synchronous roller 42.

[0036] In this embodiment, the motor 35 drives the forming shaft 32 to rotate on the support bearing 33 via the motor shaft. The forming shaft 32 drives the forming roll 32 and the forming roller 34 to rotate synchronously. The forming roller 34 drives the guide wheel 43 to rotate via the belt 44, which in turn drives the synchronous roller 42 to rotate synchronously with the forming roll 32. This ensures that the film on the synchronous roller 42 and the forming roller 32 moves at the same speed, and the film is always in a taut state, avoiding the occurrence of film wrinkles caused by airflow impact.

[0037] The working principle and usage process of this utility model are as follows: When in use, first rotate the screw 54 on the sleeve 53. The screw 54 and the two ends of the air duct plate 51 will have a spiral action. Then, the air duct plate 51 will be driven to move up and down under the limit of the sleeve 53 through the spiral action force. The distance between the air duct and the surface of the film 7 can be adjusted for films of different thicknesses, so as to adapt to the production of films of various specifications.

[0038] Subsequently, according to actual needs, the operating parameters of the variable frequency fan 64 and motor 35 are input through the control console 2, and the variable frequency fan 64 and motor 35 are started. The motor 35 drives the forming shaft 32 to rotate on the support bearing 33 through the motor shaft. The forming shaft 32 drives the forming roll 32 and forming roller 34 to rotate synchronously. The forming roller 34 drives the guide wheel 43 to rotate through the belt 44, which in turn drives the synchronous roller 42 to rotate synchronously with the forming roll 32. This ensures that the film on the synchronous roller 42 and the forming roller 32 moves at the same speed, and the film is always in a taut state, avoiding the occurrence of film wrinkles caused by airflow impact.

[0039] When the variable frequency fan 64 starts, the air in the exhaust hood 63 and the air box 61 is continuously drawn out, thereby creating a negative pressure in the air duct plate 51 between the sleeve 53. Outside air enters from the air inlet 52 on the air duct plate 51 and is blown at an angle onto the surface of the film 7, forming a uniform airflow coverage layer. This avoids excessive local cooling temperature differences and the generation of eddies. The airflow around the film 7 is drawn into the air box 61. The three-layer guide plate 62 in the air box 61 is set with a diameter of decreasing size to buffer and divert the airflow, stabilize the airflow pressure entering the air duct, and further improve the uniformity of cooling. Subsequently, the airflow passes from the air box 61 into the exhaust hood 63. The flat-topped conical guide tube 65 installed inside the hood makes the space through which the airflow passes gradually narrow, greatly reducing airflow resistance and improving exhaust efficiency.

Claims

1. A cooling exhaust device for thin film production and processing, comprising a support platform (1) and a control console (2) disposed on the support platform (1), characterized in that, It also includes a forming roller assembly (3), a synchronous guide roller assembly (4), a symmetrical air duct assembly (5), and an exhaust assembly (6), wherein: The support side platform (1) is symmetrically arranged, and the forming roller assembly (3) includes a forming roller (31), and a film (7) is wrapped around the outside of the forming roller (31). The symmetrical air duct assembly (5) includes an air duct plate (51), which is symmetrically arranged on both sides of the surface of the film (7). The air duct plate (51) is provided with a plurality of air inlets (52) at equal intervals. The air inlets (52) are set at a 30-degree angle to the surface of the film. The air duct plate (51) is fitted with sleeves (53) at both ends and is slidably engaged. The exhaust assembly (6) includes a wind box (61), a guide plate (62), an exhaust hood (63), and a variable frequency fan (64). The wind box (61) is fixed to the outer side of the support platform (1) by screws. Three layers of guide plates (62) are welded at equal intervals on the inner wall of the wind box (61), and the aperture of the three layers of guide plates (62) decreases from the outside to the inside.

2. The cooling exhaust device for thin film production and processing according to claim 1, characterized in that: The sleeve (53) is welded to the inner side of the support platform (1) and connected to the air box (61). The exhaust hood (63) is fixed to one side of the air box (61) by screws and connected to it. A tapered guide tube (65) is installed inside the exhaust hood (63).

3. A cooling exhaust device for thin film production and processing according to claim 2, characterized in that: The variable frequency fan (64) is connected to one side of the exhaust hood (63) through a pipe. The variable frequency fan (64) is fixed to the support side platform (1) by bolts. The control console (2) is electrically connected to the variable frequency fan (64). Screws (54) are symmetrically fitted on the sleeve (53) and rotate in cooperation. One end of the screw (54) passes through both ends of the air duct plate (51) and rotates in cooperation.

4. A cooling exhaust device for thin film production and processing according to claim 1, characterized in that: The forming roller (31) is welded to the forming shaft (32). The two ends of the forming shaft (32) are connected to the support bearing (33) and rotated together. One end of the forming shaft (32) is welded with a forming roller (34), and the other end is connected to the motor (35) through a coupling.

5. A cooling exhaust device for thin film production and processing according to claim 4, characterized in that: The motor (35) is fixed to the arc plate (36) by screws, and the arc plate (36) is fixed to the top of the support side platform (1) by bolts.

6. A cooling exhaust device for thin film production and processing according to claim 1, characterized in that: The synchronous guide roller assembly (4) includes a tension roller (41), which is fitted with a support side platform (1) at both ends and rotates in cooperation. A synchronous roller (42) is provided on one side of the tension roller (41), with one end of the synchronous roller (42) fitted with the support side platform (1) and the other end passing through the support side platform (1) and equipped with a guide wheel (43).

7. A cooling exhaust device for thin film production and processing according to claim 6, characterized in that: The guide wheel (43) and the forming roll (34) are nested with a belt (44) and rotate in cooperation. The film (7) is wound between the tension roller (41) and the synchronization roller (42).

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