A cooling device for plastic film production and its use method

Abstract

The present invention relates to a cooling device for plastic film production applied in the field of plastic molding and a method of using the same, comprising a cooling air ring arranged on a die of a film blowing machine, a push rod support plate fixedly installed on the film blowing machine and located on the left and right sides of the cooling air ring just above the film blowing machine, and an auxiliary cooling subsystem carried in a control box of the film blowing machine. The device adopts the cooperation of an electric push rod, a ventilation cooling rod, an auxiliary cooling induction group, a positioning head and the auxiliary cooling subsystem, so as to monitor and feedback the cooling state and data of the cooling air ring in real time, realize the automation of film bubble cooling regulation, and effectively carry out automation and high-precision cooling control of the plastic film production process based on data support from various aspects, effectively avoid the influence of various production parameters on the cooling effect, promote the high precision and high applicability of the cooling effect, ensure the production quality of the plastic film, and further effectively promote the economic benefits of the plastic film production.

Description

Technical Field

[0001] The present invention relates to a cooling device for producing plastic film and a use method thereof, and in particular to a cooling device for producing plastic film and a use method thereof applied in the field of plastic molding. Background Art

[0002] In the production of plastic film, it refers to the process of using a film blowing machine to melt plastic particles, extrude them from a die head through an extrusion mechanism to form a tubular film, and then use an air ring to air-cool and inflate the tubular film to make it a film of a certain width and thickness. After the film is pulled out of the machine by a traction roller, it is cooled and solidified by a cooling roller to obtain a plastic film. In the process of plastic film production, the cooling device is usually composed of a cooling air ring, an air duct, a blower, etc. Its function is to quickly cool and shape the film extruded from the die head to prevent the film from deforming or sticking due to excessive temperature. Although the existing cooling device can adjust the air volume, the adjusted cold air is released unevenly, and the cold air alone cannot achieve a good cooling effect, thereby reducing the production quality of the plastic film.

[0003] In order to solve the problem of uneven cold air discharge and low cooling efficiency, a cooling device for plastic film production in the market adopts a design that adds a water cooling structure, which has a certain market share.

[0004] The specification of Chinese invention patent application CN112571690A discloses an air ring cooling blow molding device for plastic film production, which belongs to the technical field of plastic film production, and includes an air inlet hood, wherein an air inlet pipe runs through the side wall of the air inlet hood, and a film bubble is installed inside the air inlet hood. The present invention installs a fixed ring with vent two in the side wall inside the air inlet hood, and the inside of the air inlet hood is connected to a rotating ring with vent one in the side wall through a rotating column. This structure can achieve uniform adjustment of the air supply volume by rotating the fixed ring to rotate by turning the handle to achieve the staggered positions of vent one and vent two; the present invention arranges a cold water pipe coiled around the outer periphery of the air inlet pipe, one end of the cold water pipe is connected to a cold water tank through a water pump, and the end of the cold water pipe away from the water pump is connected to a circulating pump, and the circulating pump is connected to the cold water tank through a reflux pipe to form a circulating water circuit. This structure can further cool the introduced airflow.

[0005] In the process of plastic film production, the above technology has solved to a certain extent the problems of uneven cold air discharge and low cooling efficiency that are prone to occur in the cooling device after the air volume is adjusted. However, due to the diversity of production needs, the thickness and width of plastic films required in different situations are different, and the extrusion speed and extrusion temperature in the production process are also different. For this reason, in the actual production of plastic films, it is difficult to achieve high-efficiency and high-quality cooling effects for plastic films by relying solely on a single cooling method or a combination of multiple cooling methods. Therefore, how to achieve high-precision control of the cooling temperature based on the actual needs of the plastic film production process, and then ensure the performance and quality of the plastic film, has become one of the key issues that need to be solved urgently. Summary of the invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to achieve high-precision control of the cooling temperature according to the actual needs in the production process of the plastic film, thereby ensuring the performance and quality of the plastic film.

[0007] In order to solve the above problems, the present invention provides a cooling device for plastic film production, including a cooling air ring and an auxiliary cooling subsystem, an induction ring seat is arranged directly above the cooling air ring, and four groups of support plates are fixedly connected to the lower end of the induction ring seat, and each group of support plates includes two induction support plates;

[0008] A pair of ventilation cooling rods distributed up and down are rotatably connected between the two induction support plates, and an auxiliary cooling induction group matched with the cooling air ring is arranged at the outer end of the ventilation cooling rod. A positioning head corresponding to the position of the ventilation cooling rod is fixedly connected at one end of the two induction support plates away from each other, and an air cooling induction component matched with the ventilation cooling rod is arranged in the positioning head;

[0009] The auxiliary cooling subsystem includes an auxiliary cooling processing unit, the input end of the auxiliary cooling processing unit is connected to the air cooling sensing collection unit, the output end of the auxiliary cooling processing unit is connected to the auxiliary air cooling regulation unit, the input end of the air cooling sensing collection unit is connected to the air cooling sensing component signal, and the output end of the auxiliary air cooling regulation unit is connected to the blowing structure signal arranged on the film blowing machine and connected to the ventilation cooling rod.

[0010] In the above-mentioned cooling device for plastic film production, the cooling status and data of the cooling air ring can be monitored and fed back in real time during the process of the cooling air ring cooling the film bubbles in the plastic film production process, and auxiliary compensation can be performed on the cooling effect of the cooling air ring in time, thereby promoting high precision and high applicability of the cooling effect and ensuring the production quality of the plastic film.

[0011] As a supplement to the present application, the input end of the auxiliary cooling processing unit is also connected to a cooling parameter acquisition unit, a production parameter acquisition unit and an auxiliary parameter setting unit. The input end of the cooling parameter acquisition unit is connected to the air ring controller signal provided on the film blowing machine, the input end of the production parameter acquisition unit is connected to the control box signal provided on the film blowing machine, and the input end of the auxiliary parameter setting unit is connected to the control box signal provided on the film blowing machine;

[0012] The output end of the auxiliary cooling processing unit is also connected to the air cooling compensation transmission unit and the cooling data transmission unit. The output end of the air cooling compensation transmission unit is connected to the air ring controller signal set on the film blowing machine, and the output end of the cooling data transmission unit is connected to the control box signal set on the film blowing machine.

[0013] As a further improvement of the present application, an auxiliary cooling induction group cooperating with the cooling air ring is provided at the outer end of the ventilation cooling rod, the auxiliary cooling induction group includes an auxiliary air cooling sleeve fixedly installed on the outer end of the ventilation cooling rod and connected to the ventilation cooling rod, the upper end of the auxiliary air cooling sleeve is fixedly connected to an auxiliary air cooling strip connected thereto, and the upper end of the auxiliary air cooling strip is fixedly connected to a smooth induction support plate.

[0014] As a further improvement of the present application, the two ends of the ventilation cooling rod along its axial direction respectively extend to the outside of the corresponding position sensing support plate, and are fixedly connected with a sensing column head. A positioning groove matching the sensing column head is provided at one end of the positioning head close to the sensing support plate, and a damping ring is fixedly connected in the positioning groove, and the damping ring is rotatably sleeved on the outside of the sensing column head.

[0015] As a further improvement of the present application, the sensing column head is fixedly connected to an eccentrically arranged linkage column head at one end away from the sensing support plate, and the air-cooled sensing assembly includes a sensing rotating sleeve which is rotatably mounted on the outside of the linkage column head, and an arc-shaped groove is provided on the inner wall of the positioning rotating groove away from the sensing support plate, and a sensing column is fixedly connected to the inner wall of the arc-shaped groove away from the sensing support plate, and the sensing column is located on the lower side of the sensing rotating sleeve, and an elastic shrink sleeve which is slidably matched with the arc-shaped groove is fixedly connected between the sensing column and the sensing rotating sleeve, and the input end of the air-cooled sensing acquisition unit is connected to the signal of a pressure probe arranged in the elastic shrink sleeve.

[0016] As another improvement of the present application, the upper and lower inner walls of the elastic shrink sleeve are fixedly connected with forced electromagnetic blocks, the output end of the auxiliary cooling processing unit is also connected to a forced reset control unit, and the output end of the forced reset control unit is connected to the forced electromagnetic block signal.

[0017] As another improved supplement of the present application, a spiral elastic strip is fixedly connected between the two forced electromagnetic blocks, and the elastic contraction force of the elastic contraction sleeve and the spiral elastic strip is greater than or equal to the damping force of the damping ring on the induction column head.

[0018] As another improvement of the present application, a pair of electric push rods are fixedly connected to the upper end of the induction ring seat, and a push rod support plate is fixedly connected to the upper end of the electric push rod. The output end of the auxiliary cooling processing unit is also connected to the auxiliary position control unit, and the output end of the auxiliary position control unit is connected to the electric push rod signal. The input end of the auxiliary cooling processing unit is also connected to the membrane bubble temperature collection unit, and the input end of the membrane bubble temperature collection unit is connected to the temperature probe signal arranged on the push rod support plate.

[0019] In addition, the present invention also provides a method for using a cooling device for producing plastic film, comprising the following steps:

[0020] S1. Parameter setting,

[0021] S11. The technician inputs relevant parameter data to the production parameter acquisition unit and the auxiliary parameter setting unit through the PC terminal connected to the control box signal, and sets the air cooling data of the cooling air ring to the air ring controller;

[0022] S12. The production parameter acquisition unit and the auxiliary parameter setting unit convert the received data and transmit it to the auxiliary cooling processing unit;

[0023] S2. Production air cooling,

[0024] S21. When the film blowing machine starts working, the auxiliary cooling processing unit first generates a control action to the electric push rod through the auxiliary position control unit according to the received data, and drives the induction ring seat to move to a suitable position through the contraction action of the electric push rod, and sends a control action to the blast structure through the auxiliary air cooling control unit, so that the blast structure stops working;

[0025] S22. After the film blowing machine is started, the cooling parameter acquisition unit is connected to the signal of the air ring controller to collect relevant data of the air ring controller controlling the cooling air ring, and then transmit it to the auxiliary cooling processing unit;

[0026] S23. At the same time, the air-cooled sensing component can sense the data of the cooling air ring acting on the film bubble through the linkage of the auxiliary cooling sensing group, and then transmit it to the auxiliary cooling processing unit through the air-cooled sensing acquisition unit;

[0027] S3. Air cooling adjustment,

[0028] S31. The auxiliary cooling processing unit calculates and determines the cooling effect of the cooling air ring at this time according to the received data, and then outputs the compensation data of the cooling control to the air ring controller through the cooling compensation transmission unit, so that the air ring controller adjusts the cooling effect of the cooling air ring;

[0029] S32. At the same time, the cooling parameter acquisition unit feeds back the control data of the air ring controller to the auxiliary cooling processing unit;

[0030] S4. Auxiliary cooling,

[0031] S41. After the auxiliary cooling processing unit receives the control feedback data of the air ring controller transmitted by the cooling parameter acquisition unit, the auxiliary cooling processing unit performs another calculation and judgment on the air cooling effect at this time according to the sensing data transmitted by the subsequent air cooling sensing component through the air cooling sensing acquisition unit;

[0032] S42. After determining that the compensatory air cooling control effect is effective, the air cooling effect at this time is maintained;

[0033] S43. After determining that the compensatory air cooling control effect is not good, the auxiliary control instruction is transmitted to the air blowing structure through the auxiliary air cooling control unit, so that the air blowing structure is started, and the cooling air flow is introduced into the ventilation cooling rod. The cooling air flow is transmitted to the outside of the film bubble through the auxiliary cooling sensor group to perform auxiliary compensation for the air cooling effect of the cooling air ring;

[0034] S5. Re-verify,

[0035] S51. The auxiliary cooling processing unit performs data calculation and verification on the auxiliary compensation of the auxiliary cooling sensing group by transmitting the sensing data through the subsequent air-cooled sensing component through the air-cooled sensing acquisition unit;

[0036] S52. After determining that the auxiliary compensation effect of the auxiliary cooling sensor group is effective, the auxiliary cooling effect is maintained at this time, and then the cooling data is transmitted to the PC through the cooling data transmission unit and the control box;

[0037] S53. After determining that the auxiliary compensation effect of the auxiliary cooling sensor group is not good, the cooling abnormality data is transmitted to the PC through the cooling data transmission unit and the control box to remind the technicians to perform inspection and maintenance.

[0038] In summary, through the cooperation of the electric push rod, ventilation cooling rod, auxiliary cooling sensor group, positioning head and auxiliary cooling subsystem, the cooling state and data of the cooling air ring can be monitored and fed back in real time during the cooling of the film bubble by the cooling air ring in the production process of the plastic film. It can effectively assist the cooperation between the cooling air ring and the air ring controller to realize the automation of the cooling regulation of the film bubble, and can also perform auxiliary compensation for the cooling effect of the cooling air ring according to the monitoring data. On the one hand, it can effectively promote the cooling effect and ensure the quality state of the film bubble, thereby promoting the performance and quality of the plastic film. On the other hand, it can also effectively automate and high-precision cooling control of the plastic film production process based on data support from all aspects, effectively avoid the influence of various production parameters on the cooling effect, promote high precision and high applicability of the cooling effect, ensure the production quality of the plastic film, and then effectively promote the economic benefits of the plastic film production. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a front view of the cooling air ring and the auxiliary cooling induction assembly of the first and second embodiments of the present application when they cooperate to act on the film bubble;

[0040] Figure 2 This is a flow chart of the method of use of the second implementation method of this application;

[0041] Figure 3 This is a control logic diagram of the auxiliary cooling subsystem of the first and second implementation modes of the present application;

[0042] Figure 4 It is a front cross-sectional view of the auxiliary cooling induction group of the first and second embodiments of the present application;

[0043] Figure 5 This is an exploded view of the ventilation cooling rod, positioning head and air cooling induction assembly of the first and second embodiments of the present application;

[0044] Figure 6 It is an axonometric cross-sectional view of the positioning head of the first and second embodiments of the present application;

[0045] Figure 7 For the first and second embodiments of this application Figure 6 A partial enlarged view of the middle part;

[0046] Figure 8 It is a left side cross-sectional view of the air-cooling sensing assembly in the normal air-cooling state of the first and second embodiments of the present application;

[0047] Fig. 9 It is a left side cross-sectional view of the air-cooling sensing assembly in the air-cooling abnormal state of the first and second embodiments of the present application;

[0048] Fig.10 This is an axonometric diagram of the cooling air ring and the auxiliary cooling induction group in the first and second embodiments of the present application;

[0049] Fig.11 This is an axonometric view of the cooling air ring and auxiliary cooling sensor group of the first and second embodiments of the present application when they are set up on a film blowing machine.

[0050] Description of the numbers in the figure:

[0051] 1 cooling air ring, 2 induction ring seat, 21 induction support plate, 3 electric push rod, 31 push rod support plate, 4 ventilation cooling rod, 41 induction column head, 42 damping embedded ring, 43 linkage column head, 5 auxiliary cooling induction group, 51 auxiliary air cooling sleeve, 52 auxiliary air cooling strip, 53 smooth induction support plate, 6 positioning head, 61 arc strip groove, 62 positioning rotating groove, 7 air cooling induction component, 71 induction column, 72 elastic shrink sleeve, 73 induction rotating sleeve, 74 forced electromagnetic block, 75 spiral elastic strip. DETAILED DESCRIPTION

[0052] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0053] The first implementation method:

[0054] Figure 1 and Figure 3 - Fig.11 The cooling device for plastic film production is shown, which includes a cooling air ring 1 and an auxiliary cooling subsystem. An induction ring seat 2 is arranged directly above the cooling air ring 1. Four support plate groups are fixedly connected to the lower end of the induction ring seat 2. Each support plate group includes two induction support plates 21.

[0055] A pair of ventilation cooling rods 4 distributed up and down are rotatably connected between the two induction support plates 21, and an auxiliary cooling induction group 5 matched with the cooling air ring 1 is arranged at the outer end of the ventilation cooling rod 4. A positioning head 6 corresponding to the position of the ventilation cooling rod 4 is fixedly connected at one end of the two induction support plates 21 away from each other, and an air cooling induction component 7 matched with the ventilation cooling rod 4 is arranged in the positioning head 6;

[0056] The auxiliary cooling subsystem includes an auxiliary cooling processing unit, the input end of the auxiliary cooling processing unit is connected to the air cooling sensing collection unit, the output end of the auxiliary cooling processing unit is connected to the auxiliary air cooling control unit, the input end of the air cooling sensing collection unit is connected to the air cooling sensing component 7 signal, the output end of the auxiliary air cooling control unit is connected to the blast structure signal connected to the ventilation cooling rod 4 arranged on the film blowing machine, through the cooperation of the electric push rod 3, the ventilation cooling rod 4, the auxiliary cooling sensing group 5, the positioning head 6 and the auxiliary cooling subsystem, the cooling state and data of the cooling air ring 1 can be monitored during the process of the cooling air ring 1 cooling the film bubbles in the production process of the plastic film. Real-time monitoring and feedback can effectively assist the cooling air ring 1 and the air ring controller to cooperate, realize the automation of film bubble cooling control, and can also assist in compensating the cooling effect of the cooling air ring 1 according to the monitoring data. On the one hand, it can effectively promote the cooling effect and ensure the quality of the film bubble, thereby promoting the performance and quality of the plastic film. On the other hand, it can also effectively automate and high-precision cooling control of the plastic film production process based on data support from all aspects, effectively avoid the influence of various production parameters on the cooling effect, promote high precision and high applicability of the cooling effect, ensure the production quality of the plastic film, and effectively promote the economic benefits of the plastic film production.

[0057] It should be noted that the air blowing structure is an existing mechanical structure, which is directly quoted here without making any changes to its structure and principle. The air blowing structure may include a blower, a conveying pipe, a filter and an electric valve. The air filtered by the filter is transmitted to the conveying pipe by the blower, and the air flow is transmitted to the ventilation cooling rod 4 through the diversion of the pipe and the regulation of the electric valve, so as to realize the air-cooling transmission of the ventilation cooling rod 4, and the blower and the electric valve are regulated by the air ring controller and the auxiliary air cooling regulation unit to ensure the automatic regulation of the air cooling effect. The cooling air ring 1 and the ventilation cooling rod 4 can adopt the same or similar air blowing structure, or the same air blowing structure. Those skilled in the art can select and set the air blowing structure according to actual conditions, and no further details will be given in this embodiment.

[0058] Figure 3 and Fig.11 It is shown that the input end of the auxiliary cooling processing unit is also connected to a cooling parameter acquisition unit, a production parameter acquisition unit and an auxiliary parameter setting unit, the input end of the cooling parameter acquisition unit is connected to the air ring controller signal provided on the film blowing machine, the input end of the production parameter acquisition unit is connected to the control box signal provided on the film blowing machine, and the input end of the auxiliary parameter setting unit is connected to the control box signal provided on the film blowing machine;

[0059] The output end of the auxiliary cooling processing unit is also connected to the air cooling compensation transmission unit and the cooling data transmission unit. The output end of the air cooling compensation transmission unit is connected to the air ring controller signal set on the film blowing machine, and the output end of the cooling data transmission unit is connected to the control box signal set on the film blowing machine.

[0060] Figure 1 , Figure 3 - Figure 6 , Fig.10 and Fig.11 The auxiliary cooling induction group 5 that matches the cooling air ring 1 is shown as being provided at the outer end of the ventilation cooling rod 4. The auxiliary cooling induction group 5 includes an auxiliary air cooling sleeve 51 that is fixedly installed at the outer end of the ventilation cooling rod 4 and connected to the ventilation cooling rod 4. The upper end of the auxiliary air cooling sleeve 51 is fixedly connected to an auxiliary air cooling strip 52 that is connected thereto. The upper end of the auxiliary air cooling strip 52 is fixedly connected to a smooth induction support plate 53. The lower end of the smooth induction support plate 53 is fixedly connected to the auxiliary air cooling strip 52 through a square ring support plate, so that the airflow released in the auxiliary air cooling strip 52 can be released in the square ring. The liquid is discharged from the square hole of the support plate and is guided by the smooth sensing support plate 53 to act on the film bubble. The cooperation of the ventilation cooling rod 4, the auxiliary air cooling strip 52 and the smooth sensing support plate 53 can, on the one hand, further limit and guide the shape and position of the film bubble during the process of blowing and cooling the film bubble by the cooling air ring 1, thereby effectively avoiding the shaking of the film bubble during the production process, ensuring the stability of the film bubble, and further effectively avoiding the quality problems of uneven thickness or deformation of the plastic film, thereby improving the quality of plastic film production while promoting the cooling effect.

[0061] Figure 4 - Fig. 9It is shown that the two ends of the ventilation cooling rod 4 along the axial direction thereof extend to the outside of the corresponding position sensing support plate 21, and are fixedly connected with the sensing column head 41. The positioning head 6 is provided with a positioning groove 62 matched with the sensing column head 41 at one end close to the sensing support plate 21. A damping insert ring 42 is fixedly connected in the positioning groove 62, and the damping insert ring 42 is rotatably sleeved on the outside of the sensing column head 41. The sensing column head 41 is set in the positioning groove 62 through the coordinated rotation of the damping insert ring 42. Through the rotation damping effect of the damping insert ring 42, when the cooling air ring 1 has abnormal air cooling and blowing effects on the film bubble, the auxiliary The linkage transmission effect of the auxiliary cooling induction group 5 prompts the induction column head 41 to effectively drive the ventilation cooling rod 4 to rotate, so as to realize the real-time collection of the air cooling effect data of the cooling air ring 1 by the subsequent air cooling induction component 7. On the other hand, it can also maintain the stability of the ventilation cooling rod 4 when the cooling air ring 1 performs air cooling and blowing on the film bubble without abnormalities, avoid the movement of the ventilation cooling rod 4 due to factors such as gravity, and effectively ensure that the auxiliary cooling induction group 5 restricts and guides the film bubble, thereby effectively realizing the effectiveness of the air cooling induction component 7 in monitoring the air cooling effect data of the cooling air ring 1, and ensuring the reliability of the monitoring data.

[0062] Figure 4 - Fig. 9 It is shown that the end of the induction column head 41 away from the induction support plate 21 is fixedly connected with an eccentrically arranged linkage column head 43, and the air-cooled induction component 7 includes an induction rotating sleeve 73 rotatably sleeved on the outside of the linkage column head 43, and the inner wall of the positioning rotating groove 62 away from the induction support plate 21 is provided with an arc-shaped groove 61, and the center line fitting circle of the arc-shaped groove 61 and the cross-sectional circle of the arc-shaped groove 61 are concentric circles, and the arc length of the arc-shaped groove 61 is less than or equal to a quarter of the center line fitting circle. The inner wall of the arc-shaped groove 61 away from the induction support plate 21 is fixedly connected with a sensing column 71, and the sensing column 71 is located at the lower side of the sensing rotating sleeve 73, and an elastic shrink sleeve 72 that is slidably matched with the arc-shaped groove 61 is fixedly connected between the sensing column 71 and the sensing rotating sleeve 73, and the input end of the air-cooled induction collection unit is connected to the elastic shrink sleeve 72 disposed on the input end of the air-cooled induction collection unit. The pressure probe signal connection in the elastic shrink sleeve 72, the cooperation of the elastic shrink sleeve 72 and the induction rotating sleeve 73, can act on the ventilation cooling rod 4 through the limiting effect on the linkage column head 43 through the induction column head 41, so as to realize the regulation of the auxiliary cooling induction group 5, and then ensure the stability of the position and angle of the auxiliary cooling induction group 5, and effectively realize its role in ensuring the quality of the film bubble, and can also effectively obtain the real-time data of the air cooling effect of the cooling air ring 1 on the film bubble through the change of the pressure data in the elastic shrink sleeve 72, and can accurately and truly reflect the air cooling effect, so as to facilitate the regulation of the air cooling effect of the cooling air ring 1 and the auxiliary compensation of the air cooling effect of the cooling air ring 1 by the auxiliary cooling induction group 5, further ensure the cooling effect, and ensure the production quality of the plastic film.

[0063] Figure 3 - Fig. 9 It is shown that the upper and lower inner walls of the elastic shrink sleeve 72 are fixedly connected with a forced electromagnetic block 74, and the output end of the auxiliary cooling processing unit is also connected to a forced reset control unit. The output end of the forced reset control unit is connected to the forced electromagnetic block 74 signal. The setting of the forced reset control unit and the forced electromagnetic block 74 can force the position of the smooth sensing support plate 53 to be reset after the air cooling control of the cooling air ring 1 and the auxiliary compensation of the auxiliary cooling induction group 5, so as to ensure the limiting and guiding effect of the smooth sensing support plate 53 on the film bubble, or by controlling the electromagnetic force of the forced electromagnetic block 74, so as to achieve angle control of the smooth sensing support plate 53. While being suitable for the production of plastic films of different sizes, it can also ensure the linkage effect of the smooth sensing support plate 53 on the air cooling data of the cooling air ring 1 transmitted to the ventilation cooling rod 4, so as to ensure the limiting and guiding effect. While promoting the production quality of plastic films, it can also ensure the accuracy and effectiveness of the air cooling control and auxiliary compensation of the cooling air ring 1.

[0064] Figure 8 and Fig. 9 It is shown that a spiral elastic strip 75 is fixedly connected between the two forced electromagnetic blocks 74, and the elastic contraction force of the elastic shrinkage sleeve 72 and the spiral elastic strip 75 is greater than or equal to the damping force of the damping ring 42 on the sensing column head 41. The cooperation between the spiral elastic strip 75 and the sensing column 71 can realize the limiting effect on the position of the smooth sensing support plate 53 and the ventilation cooling rod 4, effectively ensuring the limiting and guiding effect of the smooth sensing support plate 53 on the film bubble, and can also realize the collection of air cooling data of the cooling air ring 1 through its damping effect on the damping ring 42, further reducing the error effect on the collected data caused by the gravity of the smooth sensing support plate 53 and the auxiliary air cooling strip 52, improving the accuracy and reliability of real-time data collection, thereby ensuring the accuracy of subsequent cooling regulation and ensuring the production quality of plastic film.

[0065] Figure 1 , Figure 3 , Fig.10 and Fig.11It is shown that a pair of electric push rods 3 are fixedly connected to the upper end of the induction ring seat 2, and a push rod support plate 31 is fixedly connected to the upper end of the electric push rod 3. The output end of the auxiliary cooling processing unit is also connected to the auxiliary position control unit, and the output end of the auxiliary position control unit is connected to the electric push rod 3 signal. The input end of the auxiliary cooling processing unit is also connected to the film bubble temperature collection unit, and the input end of the film bubble temperature collection unit is connected to the temperature probe signal arranged on the push rod support plate 31. The cooling air ring 1 is installed at the upper end of the die mouth of the film blowing machine. The two push rod support plates 31 are fixedly installed on the film blowing machine and are respectively located on the left and right sides directly above the cooling air ring 1. The setting of the film bubble temperature collection unit can effectively realize the full collection of film bubble data, and can provide effective verification and support data for the auxiliary cooling processing unit in the subsequent adjustment of the cooling effect, thereby ensuring the effectiveness of cooling regulation.

[0066] Figure 1 and Figure 3 - Fig.11 Show

[0067] Second implementation method:

[0068] Figure 1 - Fig.11 The invention discloses a method for using a cooling device for producing plastic film, comprising the following steps:

[0069] S1. Parameter setting,

[0070] S11. The technician inputs relevant parameter data to the production parameter acquisition unit and the auxiliary parameter setting unit through the PC terminal connected to the control box signal, and sets the air cooling data of the cooling air ring 1 to the air ring controller;

[0071] The production parameters transmitted by the technician to the production parameter acquisition unit include but are not limited to the extrusion speed, extrusion temperature, and plastic film width and thickness and other related production parameters, and the auxiliary parameters transmitted to the auxiliary parameter setting unit include but are not limited to the telescopic range and telescopic control standard of the electric push rod 3, the action angle of the auxiliary cooling induction group 5 and the airflow range of the blast structure connected to the ventilation cooling rod 4 and other related parameters;

[0072] Setting the cooling data of the cooling air ring 1 in the air ring controller, including but not limited to the air flow size, blast speed and height of the cooling air ring 1;

[0073] S12. The production parameter acquisition unit and the auxiliary parameter setting unit convert the received data and transmit it to the auxiliary cooling processing unit;

[0074] S2. Production air cooling,

[0075] S21. When the film blowing machine starts working, the auxiliary cooling processing unit first generates a control action to the electric push rod 3 through the auxiliary position control unit according to the received data, and drives the induction ring seat 2 to move to a suitable position through the contraction action of the electric push rod 3;

[0076] The auxiliary cooling processing unit selects the appropriate telescopic length of the electric push rod 3 according to the size parameters of the plastic film to be produced, and then controls the electric push rod 3 through the auxiliary position control unit, so that the electric push rod 3 can drive the induction ring seat 2 to move, drive the ventilation cooling rod 4 and the auxiliary cooling induction group 5 to move to the appropriate position, and effectively ensure the auxiliary cooling induction group 5 to limit and guide the film bubble in the subsequent application process;

[0077] The auxiliary air cooling control unit sends a control action to the air blowing structure, so that the air blowing structure stops working;

[0078] S22. After the film blowing machine is started, the cooling parameter acquisition unit is connected to the signal of the air ring controller to collect relevant data of the air ring controller controlling the cooling air ring 1, and then transmit it to the auxiliary cooling processing unit;

[0079] The cooling parameter acquisition unit can obtain the control data of the cooling air ring 1 by the air ring controller in real time, and transmit it to the auxiliary cooling processing unit after conversion. On the one hand, it can promote the auxiliary cooling processing unit to obtain the data of the cooling state of the cooling air ring 1, and on the other hand, it can enable the auxiliary cooling processing unit to verify the compensation data regulation of the air ring controller, thereby ensuring the effectiveness of data transmission;

[0080] When the forced reset control unit is applied in the auxiliary cooling subsystem, the auxiliary cooling processing unit transmits a control instruction to the forced reset control unit according to the received data, and according to the size specification of the plastic film, the forced reset control unit inputs a certain current into the forced electromagnetic block 74, so that the two forced electromagnetic blocks 74 generate an electromagnetic effect of attraction or repulsion;

[0081] When the two forced electromagnetic blocks 74 have an attraction effect, the magnetic attraction cooperates with the elastic contraction of the elastic shrink sleeve 72 and the spiral elastic strip 75, and drives the elastic shrink sleeve 72 and the spiral elastic strip 75 to produce continuous contraction deformation, and drives the linkage column head 43 to produce a rotation effect along the arc groove 61 through the induction rotating sleeve 73, so that the induction column head 41 drives the ventilation cooling rod 4, the auxiliary air cooling sleeve 51, the auxiliary air cooling strip 52 and the smooth induction support plate 53 to produce an inward deflection effect, thereby ensuring the smooth induction support plate 53 to limit and guide the film bubbles of different sizes;

[0082] When the two forced electromagnetic blocks 74 have a repulsive effect, the magnetic repulsion will resist the elastic contraction of the elastic shrink sleeve 72 and the spiral elastic strip 75, and drive the elastic shrink sleeve 72 and the spiral elastic strip 75 to produce elongation deformation, and drive the linkage column head 43 to produce a rotation effect along the arc groove 61 through the induction rotating sleeve 73, so that the induction column head 41 drives the ventilation cooling rod 4, the auxiliary air cooling sleeve 51, the auxiliary air cooling strip 52 and the smooth induction support plate 53 to produce an outward deflection effect, thereby ensuring the smooth induction support plate 53 to limit and guide the film bubbles of different sizes;

[0083] S23. At the same time, the air-cooled sensing assembly 7 can sense the data of the cooling air ring 1 acting on the film bubble through the linkage of the auxiliary cooling sensing group 5, and then transmit it to the auxiliary cooling processing unit through the air-cooled sensing acquisition unit;

[0084] The cooling air ring 1 cools and expands the extruded material in the die head of the film blowing machine. In the process of generating film bubbles, the film bubbles are continuously transported through the guidance and winding of the film blowing machine. The cooling effect of the cooling air ring 1 continuously acts on the film bubbles, so that the outer wall of the film bubbles comes into contact with the smooth induction support plate 53.

[0085] When the outer diameter of the membrane bubble is large and the smooth sensing support plate 53 is squeezed outward, the smooth sensing support plate 53 will act on the ventilation cooling rod 4 through the auxiliary air-cooling strip 52 and the auxiliary air-cooling sleeve 51, so that the ventilation cooling rod 4 drives the sensing column head 41 to produce a deflection effect toward the outside in the damping embedded ring 42, and then drives the elastic shrink sleeve 72 and the spiral elastic strip 75 to produce an elongation deformation along the arc groove 61 through the action of the linkage column head 43 and the sensing rotating sleeve 73, thereby changing the pressure data in the sensing column 71, so that the pressure probe transmits the pressure data to the auxiliary cooling processing unit through the air-cooling sensing acquisition unit. The auxiliary cooling processing unit determines that the air-cooling control of the cooling air ring 1 at this time needs to be adjusted by compensation data based on the pressure sensing data obtained;

[0086] When the outer diameter of the film bubble is normal and only contacts with the smooth sensing support plate 53 or does not contact with the smooth sensing support plate 53, the smooth sensing support plate 53 maintains its original state under the contraction of the elastic shrink sleeve 72 and the spiral elastic strip 75, and then the pressure probe located in the sensing column 71 transmits the pressure data to the auxiliary cooling processing unit through the air cooling acquisition unit. The auxiliary cooling processing unit determines that the air cooling control of the cooling air ring 1 does not need to be adjusted by compensation data according to the acquired pressure data.

[0087] When the film bubble temperature acquisition unit is used in the auxiliary cooling subsystem, the temperature probe arranged on the push rod support plate 31 will transmit the film bubble temperature at this position to the auxiliary cooling processing unit through the film bubble temperature acquisition unit, so that the auxiliary cooling processing unit can judge the air cooling effect at this time according to the data transmitted by the film bubble temperature acquisition unit and the air cooling sensing acquisition unit;

[0088] When the pressure probe in the sensing column 71 transmits the pressure change data about the smooth sensing support plate 53 rotating outward to the auxiliary cooling processing unit through the air-cooling sensing acquisition unit, the auxiliary cooling processing unit determines that it is necessary to compensate the air-cooling effect of the cooling air ring 1;

[0089] The pressure probe in the sensing column 71 transmits the pressure data about the position change of the smooth sensing support plate 53 to the auxiliary cooling processing unit through the air-cooling sensing collection unit, and when the bubble temperature data is normal, the auxiliary cooling processing unit determines that it is not necessary to compensate the air-cooling effect of the cooling air ring 1 at this time;

[0090] The pressure probe in the sensing column 71 transmits the pressure data about the position change of the smooth sensing support plate 53 to the auxiliary cooling processing unit through the air-cooling sensing collection unit. When the bubble temperature data is abnormal, the auxiliary cooling processing unit determines that it is necessary to compensate the air-cooling effect of the cooling air ring 1 at this time.

[0091] S3. Air cooling adjustment,

[0092] S31. The auxiliary cooling processing unit calculates and judges the air cooling effect of the cooling air ring 1 at this time according to the received data, and then outputs the compensation data of the air cooling control to the air ring controller through the air cooling compensation transmission unit, so that the air ring controller adjusts the air cooling effect of the cooling air ring 1;

[0093] S32. At the same time, the cooling parameter acquisition unit feeds back the control data of the air ring controller to the auxiliary cooling processing unit;

[0094] S4. Auxiliary cooling,

[0095] S41. After the auxiliary cooling processing unit receives the control feedback data of the air ring controller transmitted by the cooling parameter acquisition unit, the auxiliary cooling processing unit performs another calculation and judgment on the air cooling effect at this time according to the sensing data transmitted by the subsequent air cooling sensing component 7 through the air cooling sensing acquisition unit;

[0096] After the air cooling compensation transmission unit transmits compensation data to the air ring controller, and the auxiliary cooling processing unit receives the parameter change data of the air ring controller transmitted by the cooling parameter acquisition unit, the auxiliary cooling processing unit judges the air cooling state after the cooling air ring 1 is regulated based on the data subsequently received from the air cooling sensing acquisition unit and the film bubble temperature acquisition unit;

[0097] When receiving the pressure data of the smooth sensing support plate 53 reset transmitted by the air cooling sensing collection unit and the temperature transmitted by the film bubble temperature collection unit is normal, the auxiliary cooling processing unit determines that the air cooling control effect is effective;

[0098] When receiving the pressure data of the smooth sensing support plate 53 reset transmitted by the air cooling sensing collection unit, but the temperature transmitted by the film bubble temperature collection unit is abnormal, the auxiliary cooling processing unit determines that the effect of the air cooling control is not good;

[0099] When receiving the pressure data transmitted by the air-cooling sensing collection unit that the smooth sensing support plate 53 does not rotate much after resetting, the auxiliary cooling processing unit determines that the effect of the air-cooling control is not good;

[0100] S42. After determining that the compensatory air cooling control effect is effective, the air cooling effect at this time is maintained;

[0101] S43. After determining that the compensatory air cooling control effect is not good, the auxiliary control instruction is transmitted to the air blowing structure through the auxiliary air cooling control unit, so that the air blowing structure is started, and the cooling air flow is introduced into the ventilation cooling rod 4. The cooling air flow is transmitted to the outside of the film bubble through the auxiliary cooling sensor group 5, and the air cooling effect of the cooling air ring 1 is supplemented and compensated;

[0102] S5. Re-verify,

[0103] S51. The auxiliary cooling processing unit performs data calculation and verification on the auxiliary compensation of the auxiliary cooling sensing group 5 by means of the subsequent air-cooled sensing component 7 transmitted through the air-cooled sensing acquisition unit;

[0104] After the auxiliary air-cooling control unit controls the air blowing structure connected to the ventilation cooling rod 4 to work, the ventilation cooling rod 4 conveys cooling air flow into the auxiliary air-cooling sleeve 51, and the cooling air flow is discharged through the auxiliary air-cooling strip 52, and acts on the outside of the film bubble through the guidance of the smooth sensing support plate 53, and has a reverse effect of limiting the outer diameter of the film bubble, and can resist the force of the cooling air ring 1 on the film bubble. When the resistance effect is effective, the smooth sensing support plate 53 will lose the squeezing effect of the film bubble, so that the smooth sensing support plate 53 can produce a reset action under the elastic contraction effect of the elastic shrinkage sleeve 72 and the spiral elastic strip 75 or the magnetic force of the forced electromagnetic block 74 and the elastic contraction effect of the elastic shrinkage sleeve 72 and the spiral elastic strip 75, and then the auxiliary cooling processing unit verifies and judges the effect of the auxiliary compensation effect through the data transmitted by the subsequent air-cooling sensing acquisition unit and the film bubble temperature acquisition unit;

[0105] When receiving the pressure data of the smooth sensing support plate 53 reset transmitted by the air cooling sensing collection unit and the temperature transmitted by the film bubble temperature collection unit is normal, the auxiliary cooling processing unit determines that the auxiliary compensation effect is effective;

[0106] When receiving the pressure data of the smooth sensing support plate 53 reset transmitted by the air cooling sensing acquisition unit, but the temperature transmitted by the film bubble temperature acquisition unit is abnormal, the auxiliary cooling processing unit determines that the auxiliary compensation effect is not good;

[0107] When receiving the pressure data transmitted by the air-cooling sensing collection unit that the smooth sensing support plate 53 does not rotate much after resetting, the auxiliary cooling processing unit determines that the auxiliary compensation effect is not good;

[0108] S52. After determining that the auxiliary compensation effect of the auxiliary cooling sensor group 5 is effective, the auxiliary cooling effect is maintained at this time, and then the cooling data is transmitted to the PC through the cooling data transmission unit and the control box;

[0109] S53. After determining that the auxiliary compensation effect of the auxiliary cooling sensor group 5 is not good, the cooling abnormality data is transmitted to the PC through the cooling data transmission unit and the control box to remind the technicians to perform inspection and maintenance;

[0110] After determining that the auxiliary compensation effect of the auxiliary cooling induction group 5 is not good, if a forced reset control unit is provided in the auxiliary cooling subsystem, the auxiliary cooling processing unit will also transmit a reset instruction to the forced reset control unit, so that the forced reset control unit controls the forced electromagnetic block 74 to produce a corresponding electromagnetic effect;

[0111] Under the effect of the original attraction magnetic force of the forced electromagnetic block 74, the forced reset control unit continuously increases the current input of the forced electromagnetic block 74 to increase the attraction electromagnetic force, thereby forcing the smooth induction support plate 53 to reset;

[0112] Under the action of the original repulsive magnetic force of the forced electromagnetic block 74, the forced reset control unit reduces the current input of the forced electromagnetic block 74, or changes the reverse direction of its current input to convert it into an attractive electromagnetic action, thereby forcibly resetting the smooth induction support plate 53 by removing the resistance effect of the electromagnetic repulsion on the elastic contraction force of the elastic shrinkage sleeve 72 and the spiral elastic strip 75, or assisting the elastic contraction force of the elastic shrinkage sleeve 72 and the spiral elastic strip 75 to recover through the attractive electromagnetic action;

[0113] Then, the auxiliary cooling processing unit determines the effectiveness of the forced reset based on the pressure data transmitted by the subsequent air cooling sensing collection unit after the forced reset, so as to avoid the breakage of the bubble caused by the continuous expansion of the outer diameter of the bubble, thereby avoiding the subsequent transmission of the bubble and the entanglement of the broken bubble with the structure of the film blowing machine. While reducing the accident losses caused by continuous abnormalities, it also gains effective time and corresponding reference data for technical personnel, so as to ensure the quality of the plastic film and the stability of the cooling temperature in the subsequent continuous production process.

[0114] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A cooling device for plastic film production, characterized in that: It comprises a cooling air ring (1) and an auxiliary cooling subsystem, wherein an induction ring seat (2) is arranged directly above the cooling air ring (1), and four groups of support plates are fixedly connected to the lower end of the induction ring seat (2), and each group of the support plates comprises two induction support plates (21); A pair of ventilation cooling rods (4) distributed up and down are rotatably connected between the two induction support plates (21); a positioning head (6) corresponding to the position of the ventilation cooling rod (4) is fixedly connected to the ends of the two induction support plates (21) that are away from each other; and a wind cooling induction component (7) that matches the ventilation cooling rod (4) is arranged in the positioning head (6); The auxiliary cooling subsystem comprises an auxiliary cooling processing unit, the input end of the auxiliary cooling processing unit is connected to an air cooling sensing collection unit, the output end of the auxiliary cooling processing unit is connected to an auxiliary air cooling control unit, the input end of the air cooling sensing collection unit is signal-connected to an air cooling sensing component (7), and the output end of the auxiliary air cooling control unit is signal-connected to an air blowing structure provided on the film blowing machine and connected to a ventilation cooling rod (4); The outer end of the ventilation cooling rod (4) is provided with an auxiliary cooling induction group (5) matched with the cooling air ring (1), and the auxiliary cooling induction group (5) includes an auxiliary air cooling sleeve (51) fixedly mounted on the outer end of the ventilation cooling rod (4) and connected to the ventilation cooling rod (4), the upper end of the auxiliary air cooling sleeve (51) is fixedly connected to an auxiliary air cooling strip (52) connected thereto, and the upper end of the auxiliary air cooling strip (52) is fixedly connected to a smooth induction support plate (53).

2. A cooling device for plastic film production according to claim 1, characterized in that: The two ends of the ventilation cooling rod (4) along the axial direction thereof extend to the outside of the corresponding position sensing support plate (21) and are fixedly connected to the sensing column head (41); the positioning head (6) is provided with a positioning rotation groove (62) matching with the sensing column head (41) at one end close to the sensing support plate (21); a damping embedded ring (42) is fixedly connected in the positioning rotation groove (62), and the damping embedded ring (42) is rotatably sleeved on the outside of the sensing column head (41).

3. A cooling device for plastic film production according to claim 2, characterized in that: The sensing column head (41) is fixedly connected to an eccentrically arranged linkage column head (43) at one end away from the sensing support plate (21); the air-cooled sensing component (7) comprises a sensing rotating sleeve (73) rotatably sleeved on the outside of the linkage column head (43); an arc-shaped strip groove (61) is provided on the inner wall of the positioning rotating groove (62) at a side away from the sensing support plate (21); a sensing column (71) is fixedly connected to the inner wall of the arc-shaped strip groove (61) at a side away from the sensing support plate (21); the sensing column (71) is located at the lower side of the sensing rotating sleeve (73); an elastic shrink sleeve (72) that is slidably matched with the arc-shaped strip groove (61) is fixedly connected between the sensing column (71) and the sensing rotating sleeve (73); and the input end of the air-cooled sensing acquisition unit is connected to the signal of a pressure probe arranged in the elastic shrink sleeve (72).

4. A cooling device for plastic film production according to claim 3, characterized in that: The upper and lower inner walls of the elastic shrink sleeve (72) are both fixedly connected to a forced electromagnetic block (74), the output end of the auxiliary cooling processing unit is also connected to a forced reset regulating unit, and the output end of the forced reset regulating unit is signal-connected to the forced electromagnetic block (74).

5. A cooling device for plastic film production according to claim 4, characterized in that: A spiral elastic strip (75) is fixedly connected between the two forced electromagnetic blocks (74), and the elastic contraction force of the elastic contraction sleeve (72) and the spiral elastic strip (75) is greater than or equal to the damping force of the damping insert ring (42) on the induction column head (41).

6. A cooling device for plastic film production according to claim 1, characterized in that: A pair of electric push rods (3) are fixedly connected to the upper end of the induction ring seat (2), and a push rod support plate (31) is fixedly connected to the upper end of the electric push rod (3). The output end of the auxiliary cooling processing unit is also connected to an auxiliary position control unit, and the output end of the auxiliary position control unit is signal-connected to the electric push rod (3). The input end of the auxiliary cooling processing unit is also connected to a membrane bubble temperature collection unit, and the input end of the membrane bubble temperature collection unit is signal-connected to a temperature probe arranged on the push rod support plate (31).

7. A cooling device for plastic film production according to claim 6, characterized in that: The input end of the auxiliary cooling processing unit is also connected to a cooling parameter acquisition unit, a production parameter acquisition unit and an auxiliary parameter setting unit. The input end of the cooling parameter acquisition unit is connected to the air ring controller signal provided on the film blowing machine, the input end of the production parameter acquisition unit is connected to the control box signal provided on the film blowing machine, and the input end of the auxiliary parameter setting unit is connected to the control box signal provided on the film blowing machine; The output end of the auxiliary cooling processing unit is also connected to an air cooling compensation transmission unit and a cooling data transmission unit. The output end of the air cooling compensation transmission unit is connected to the air ring controller signal arranged on the film blowing machine, and the output end of the cooling data transmission unit is connected to the control box signal arranged on the film blowing machine.

8. A method for using a cooling device for producing plastic film, based on the cooling device for producing plastic film according to claim 7, characterized in that: The steps include: S1. Parameter setting, S11. The technician inputs relevant parameter data into the production parameter acquisition unit and the auxiliary parameter setting unit through the PC terminal connected to the control box signal, and sets the air cooling data of the cooling air ring (1) to the air ring controller; S12. The production parameter acquisition unit and the auxiliary parameter setting unit convert the received data and transmit it to the auxiliary cooling processing unit; S2. Production air cooling, S21. When the film blowing machine is started, the auxiliary cooling processing unit first generates a control action to the electric push rod (3) through the auxiliary position control unit according to the received data, and drives the induction ring seat (2) to move to a suitable position through the contraction action of the electric push rod (3); The auxiliary air cooling control unit sends a control action to the air blowing structure, so that the air blowing structure stops working; S22. After the film blowing machine is started, the cooling parameter acquisition unit is connected to the signal of the air ring controller to collect the relevant data of the air ring controller controlling the cooling air ring (1), and then transmit it to the auxiliary cooling processing unit; S23. At the same time, the air cooling sensing component (7) can sense the data of the cooling air ring (1) acting on the film bubble through the linkage effect of the auxiliary cooling sensing group (5), and then transmit it to the auxiliary cooling processing unit through the air cooling sensing collection unit; S3. Air cooling adjustment, S31. The auxiliary cooling processing unit calculates and determines the air cooling effect of the cooling air ring (1) at this time according to the received data, and then outputs the compensation data of the air cooling control to the air ring controller through the air cooling compensation transmission unit, so that the air ring controller adjusts the air cooling effect of the cooling air ring (1); S32. At the same time, the cooling parameter acquisition unit feeds back the control data of the air ring controller to the auxiliary cooling processing unit; S4. Auxiliary cooling, S41. After the auxiliary cooling processing unit receives the control feedback data of the air ring controller transmitted by the cooling parameter acquisition unit, the auxiliary cooling processing unit performs another calculation and judgment on the air cooling effect at this time according to the sensing data transmitted by the subsequent air cooling sensing component (7) through the air cooling sensing acquisition unit; S42. After determining that the compensatory air cooling control effect is effective, the air cooling effect at this time is maintained; S43. After determining that the compensatory air cooling control effect is not good, the auxiliary control instruction is transmitted to the air blowing structure through the auxiliary air cooling control unit, so that the air blowing structure is started, and the cooling air flow is introduced into the ventilation cooling rod (4). The cooling air flow is transmitted to the outside of the film bubble through the auxiliary cooling sensor group (5), so as to perform auxiliary compensation for the air cooling effect of the cooling air ring (1); S5. Re-verify, S51. The auxiliary cooling processing unit performs data calculation and verification on the auxiliary compensation of the auxiliary cooling sensing group (5) through the subsequent air-cooling sensing component (7) through the air-cooling sensing acquisition unit; S52. After determining that the auxiliary compensation effect of the auxiliary cooling sensor group (5) is effective, the auxiliary cooling effect is maintained at this time, and then the cooling data is transmitted to the PC through the cooling data transmission unit and the control box; S53. After determining that the auxiliary compensation effect of the auxiliary cooling sensor group (5) is not good, the cooling abnormality data is transmitted to the PC through the cooling data transmission unit and the control box to remind the technicians to perform inspection and maintenance.

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