CN113681863A

CN113681863A - Intelligent heat insulation device for plastic film raw material heating mechanism

Info

Publication number: CN113681863A
Application number: CN202111010113.6A
Authority: CN
Inventors: 江思佶; 金江平; 张祖俊
Original assignee: Anqing Jitong Industry And Trade Co ltd
Current assignee: Anqing Jitong Industry And Trade Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2021-11-23

Abstract

The invention belongs to the technical field of plastic processing, and particularly relates to an intelligent heat insulation device for a plastic film raw material heating mechanism. This plastic film raw materials heating mechanism uses intelligent heat-proof device, when setting up the intensification of thermoelectric generation piece to filling the intracavity and carrying out in time monitoring, utilize the absorption control heat preservation pad of electromagnet to the metal strip to fill taking out of intracavity, and then the content of control coolant liquid in filling the intracavity, and the temperature through heat and the coolant liquid of filling the intracavity generates electricity to the thermoelectric generation piece, supply power to the electro-magnet again, and then make heat preservation pad and coolant liquid tend to balanced gradually filling the content of intracavity, avoid causing the heating furnace to damage or produce the influence to the processing of plastics product to filling intracavity rapid cooling, thereby make to have the characteristics that are convenient for carry out intelligent cooling to the heating furnace.

Description

Intelligent heat insulation device for plastic film raw material heating mechanism

Technical Field

The invention relates to the technical field of plastic processing, in particular to an intelligent heat insulation device for a plastic film raw material heating mechanism.

Background

In the plastic extrusion molding equipment, the plastic extruder is generally called a main machine, and the subsequent equipment matched with the plastic extruder is called an auxiliary machine. After the development of the plastic extruder for more than 100 years, multiple types of double screws, multiple screws and even no screws and the like are derived from the original single screw. The plastic extruder (main machine) can be matched with various plastic forming auxiliary machines for pipe material, film, bar material, monofilament, flat filament, packing belt, extruding net, plate (sheet) material, profiled bar, granulating and cable covering, etc. to form various plastic extrusion forming production lines to produce various plastic products. Therefore, the plastic extrusion molding machine is one of the machines widely used in the plastic processing industry at present or in the future;

the plastic extruder heats the plastic raw material through the heating furnace arranged on the surface, and then pushes out the heated plastic raw material through the internal screw rod structure, and in the actual use process, because the heating furnace needs to keep high temperature for a long time, the heat of the surrounding environment of the heating furnace is increased, the circuit structure and part of electrical equipment around the plastic extruder are easily damaged, and meanwhile, potential safety hazards exist;

current cooling arrangement can be fine cools off the heating furnace, but the heating furnace need keep certain temperature could with the heating of plastic material, therefore can not continuously cool down the heating furnace, influence the normal work of heating furnace, so need keep apart the heat in heating furnace and the operational environment in workshop, avoid keeping apart simultaneously and make the heating furnace inside the ultrahigh temperature that appears damage the heating furnace body, therefore provided a plastic film raw materials heating mechanism and used intelligent heat-proof device.

Disclosure of Invention

Based on the technical problem that the temperature of a heating furnace is inconvenient to isolate in the existing plastic film raw material processing, the invention provides an intelligent heat insulation device for a plastic film raw material heating mechanism.

The invention provides an intelligent heat insulation device for a plastic film raw material heating mechanism, which comprises a plastic machine body, wherein a heating furnace is arranged at the upper end of the plastic machine body, a heat preservation device is arranged on the surface of the heating furnace, heat loss of the heating furnace is reduced through the heat preservation device, the heat preservation device comprises a heat preservation cushion, a water cooling device is arranged on the surface of the heat preservation device, the heating furnace is cooled through the water cooling device, and the water cooling device comprises a cold water pipe.

Preferably, the fixed surface of heating furnace has cup jointed the heat preservation box, the heat preservation box is hollow upper surface open-ended box body form, the upper surface edge of heat preservation box has seted up and has filled the chamber, fill the inner wall in chamber and keep warm the surperficial sliding connection who fills up, four the equal fixedly connected with piston frame of lower surface that keeps warm the pad, the piston frame is rectangle square frame form, the surface of piston frame and the interior diapire adaptation that fills the chamber.

Through above-mentioned technical scheme, utilize the piston frame to block up the inner wall in filling the chamber to be convenient for seal the lower extreme in filling the chamber.

Preferably, one end of the cold water pipe is fixedly connected to the side wall of the heat preservation box, the side wall of the heat preservation box is fixedly connected with the drain pipe, the drain pipe and the cold water pipe are respectively located on two opposite sides of the heat preservation box, the inside of the cold water pipe and the inside of the drain pipe are communicated with the inside of the filling cavity, and a water valve is mounted on the surface of the cold water pipe.

According to the technical scheme, the water valve is connected with the control module of the plastic machine body, so that the on-off of the water valve is conveniently controlled; and meanwhile, a connecting port of the cold water pipe and the heat preservation box is always arranged below the piston frame, so that the cooling liquid is prevented from entering the upper part of the piston frame, and the upper surface opening of the filling cavity overflows.

Preferably, the surface of the cold water pipe is provided with a monitoring block, the cold water pipe is divided into a front part and a rear part by the monitoring block, a water accumulating tank is arranged in the monitoring block, the two parts of the cold water pipe are communicated through the water accumulating tank, and the water accumulating tank is in a downward concave shape.

Through the technical scheme, the cooling liquid is stored by utilizing the depression of the water accumulation groove, so that the low temperature in the water accumulation groove is convenient to keep.

Preferably, the mounting groove has all been seted up to the inner wall between heat preservation box and the monitoring piece, two the inside in chamber and the inside of ponding groove are filled in the inside intercommunication respectively of mounting groove, two the equal fixedly connected with heat conduction block of inner wall of mounting groove, the heat conduction block is formed by aluminium pig and ceramic package combination, the lateral wall surface of aluminium pig and the lateral wall surface of ceramic package all coat and have sealed glue.

Through above-mentioned technical scheme, utilize the inside of heat conduction piece intercommunication packing chamber and the inside of ponding groove to be convenient for will fill the temperature in the temperature of intracavity and the ponding groove to external transmission, utilize the heat conduction piece of aluminium piece and ceramic package combination to carry out the heat conduction simultaneously, thereby when being convenient for carry out the temperature transmission, utilize ceramic package to insulate, increase the security of using.

Preferably, the inner wall between the heat preservation box and the monitoring block is fixedly connected with a thermoelectric generation piece, the hot end of the thermoelectric generation piece is connected with the heat conduction block on the surface of the heat preservation box in a sliding manner, and the cold end of the thermoelectric generation piece is connected with the heat conduction block on the surface of the monitoring block in a sliding manner.

Through the technical scheme, the thermoelectric generation piece is in signal connection with the control module of the plastic machine body, so that the heating of the heating furnace can be timely detected.

Preferably, the upper surface corner fixedly connected with bracing piece of heat preservation box, adjacent two the equal fixedly connected with horizontal pole in the relative lateral wall upper end of bracing piece, the lower fixed surface of horizontal pole is connected with the electro-magnet, electro-magnet and thermoelectric generation piece electric connection.

Through above-mentioned technical scheme, utilize the thermoelectric generation piece to supply power to the electro-magnet to be convenient for carry out the adjustment of electromagnetism ferromagnetism according to the inside and outside difference in temperature of filling the chamber.

Preferably, the lower surface of the electromagnet is fixedly connected with a tension spring, the lower end of the tension spring is fixedly connected with a metal strip, the lower surface of the metal strip is fixedly connected with a push strip, the lower surface of the push strip is fixedly connected with the upper surface of the heat preservation pad, the lower end surface of the cross bar is fixedly inserted with a water inlet pipe and a water outlet pipe, the two water inlet pipes are respectively positioned at the two sides of the water outlet pipe, the surface of the water inlet pipe and the surface of the water outlet pipe are both connected with the inner side wall of the tension spring in a sliding way, the lower end of the water inlet pipe is fixedly connected and aligned with the lower surface of the piston frame, the lower surface of the heat preservation cushion is provided with a water outlet hole, the lower end of the water outlet pipe is positioned in the water outlet hole, the sealing plug has all been fixed to the surface of the lower extreme surface of outlet pipe and the surface of inlet tube and has been cup jointed, the cooling chamber has been seted up to the inside of horizontal pole, the inside in cooling chamber all communicates with the upper end of outlet pipe and the upper end of inlet tube.

Through the technical scheme, utilize tension spring to connect electro-magnet and metal strip, gravity to the metal strip through tension spring balances, thereby reduce the electro-magnet to the tensile magnetic strength demand of metal strip upwards, utilize the cooling chamber to be to middle sunken form simultaneously, thereby be convenient for the coolant liquid of cooling intracavity passes through the outside outflow of outlet pipe, and replace the interior diapire in cooling chamber for heat conduction piece, thereby be convenient for cool down the electro-magnet through the coolant liquid of cooling intracavity, and simultaneously, the equal slip grafting of structure that outlet pipe and inlet tube and tension spring lower extreme are connected, thereby be convenient for keep the outlet pipe vertical with the inlet tube when the structure that tension spring lower extreme is connected rises.

Preferably, the gyro wheel is all installed at the both ends of pushing away the strip, and adjacent two the spout has all been seted up on the relative lateral wall surface of bracing piece, the inner wall of spout and the surface sliding connection of gyro wheel.

Through above-mentioned technical scheme, the utilization is pushed away the strip and is passed through the gyro wheel and be connected with the spout on bracing piece lateral wall surface to be convenient for carry on spacing reduction to pushing away the strip and push away the friction between strip and bracing piece.

Preferably, the outer surfaces of the four support rods are sleeved with protective shells in a sliding mode, and the lower surfaces of the protective shells are fixedly connected with and aligned to the upper surface of the heat preservation box.

Through above-mentioned technical scheme, utilize the outside at the bracing piece to cup joint the protecting crust to be convenient for protect the active structure of bracing piece surface connection.

The beneficial effects of the invention are as follows:

1. the heat preservation device is sleeved on the surface of the heating furnace through the arrangement, the side wall of the heating furnace is wrapped by the heat preservation box filled with the heat preservation pad in the heat preservation device, and then the heat loss of the heating furnace is reduced, so that the heating furnace has the characteristic of being convenient for heating the heating furnace quickly.

2. The heat-insulating pad in the filling cavity is drawn out through the arrangement and is connected with a cold water pipe and a drain pipe in the water cooling device, an external cooling liquid source is injected into the filling cavity through the cold water pipe, so that the cooling liquid enters the filling cavity, the heat transfer is generated between the side wall of the heat-insulating box and the surface of the heating furnace, and the cooling liquid after being heated is discharged through the drain pipe, so that the heating furnace is convenient to cool in time.

3. When in time monitoring is carried out to the intensification of filling the intracavity through setting up the thermoelectric generation piece, utilize the absorption control heat preservation pad of electromagnet to the metal strip to fill taking out of intracavity, and then the content of control coolant liquid in filling the intracavity, and the temperature through heat and the coolant liquid of filling the intracavity generates electricity the thermoelectric generation piece, supply power to the electro-magnet again, and then make heat preservation pad and coolant liquid tend to the balance gradually at the content of filling the intracavity, avoid causing the heating furnace to damage or produce the influence to the processing of plastics product to filling intracavity rapid cooling, thereby make to have the characteristics of being convenient for carry out intelligent cooling to the heating furnace.

Drawings

FIG. 1 is a schematic view of an intelligent heat insulation device for a plastic film material heating mechanism according to the present invention;

FIG. 2 is a perspective view of the structure of a heat preservation box of the intelligent heat insulation device for a plastic film raw material heating mechanism provided by the invention;

FIG. 3 is a perspective view of an insulation mat structure of an intelligent insulation device for a plastic film material heating mechanism according to the present invention;

FIG. 4 is a perspective view of a push bar structure of the intelligent heat insulation device for a plastic film raw material heating mechanism according to the present invention;

FIG. 5 is a sectional view of the structure of a heat-insulating box of the intelligent heat-insulating device for a plastic film raw material heating mechanism according to the present invention;

FIG. 6 is a sectional view of a monitoring block of the intelligent thermal insulation device for a plastic film material heating mechanism according to the present invention;

FIG. 7 is a sectional view of a heat conducting block of an intelligent heat insulating device for a plastic film material heating mechanism according to the present invention;

FIG. 8 is a cross-sectional view of the intelligent heat-insulating device for a plastic film material heating mechanism according to the present invention;

FIG. 9 is a sectional view of the structure of the heat insulating mat of the intelligent heat insulating device for a plastic film material heating mechanism according to the present invention.

In the figure: 1. a molding machine body; 2. heating furnace; 3. a heat-insulating pad; 31. a heat preservation box; 32. filling the cavity; 33. a piston frame; 4. a cold water pipe; 41. a drain pipe; 42. a water valve; 43. a monitoring block; 44. a water accumulation tank; 45. mounting grooves; 46. a heat conducting block; 461. an aluminum block; 462. a ceramic housing; 463. sealing glue; 47. a thermoelectric power generation sheet; 5. a support bar; 6. a cross bar; 61. a water inlet pipe; 62. a water outlet pipe; 63. a water outlet hole; 64. a sealing plug; 65. a cooling cavity; 7. an electromagnet; 8. a tension spring; 9. a metal strip; 10. pushing the strips; 11. a roller; 12. a chute; 13. and (4) a protective shell.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-6, an intelligent heat insulation device for a plastic film raw material heating mechanism comprises a plastic machine body 1, wherein a heating furnace 2 is arranged at the upper end of the plastic machine body 1, a heat preservation device is arranged on the surface of the heating furnace 2, heat loss in the heating furnace 2 is reduced through the heat preservation device, the heat preservation device comprises a heat preservation cushion 3, a water cooling device is arranged on the surface of the heat preservation device, the heating furnace 2 is cooled through the water cooling device, and the water cooling device comprises a cold water pipe 4;

in order to facilitate the rapid heating of the heating furnace 2 during working, the side walls of the heating furnace 2 are wrapped by the heat insulation pads 3 and the heat insulation boxes 31 in the heat insulation device, so that the heat dissipation rate of the heating furnace 2 is reduced, the piston frames 33 are fixedly connected to the lower surfaces of the four heat insulation pads 3, and the lower ends of the inner walls of the filling cavities 32 are sealed by the piston frames 33;

cup joint the heat preservation device through setting up at the surface of heating furnace 2, utilize the packing to have the heat preservation box 31 that keeps warm and fill up 3 in the heat preservation device to wrap up the lateral wall of heating furnace 2, and then reduced heating furnace 2's heat and lost to the feasible characteristics that are convenient for heating furnace 2 rapid heating up that have.

In order to facilitate rapid cooling of the heating furnace 2 working for a long time, the cold water pipe 4 in the water cooling device is communicated with the filling cavity 32 through the drain pipe 41, the heat conduction block 46 extending into the filling cavity 32 is installed on the surface of the heat preservation box 31, heat in the filling cavity 32 is transferred to the thermoelectric generation sheet 47 through the heat conduction block 46, the monitoring block 43 is installed on the surface of the cold water pipe 4, the water accumulation groove 44 in the monitoring block 43 is used as a cold source of the thermoelectric generation sheet 47, current generation of the thermoelectric generation sheet 47 is utilized, high-temperature signals of the heating furnace 2 are transferred to the molding machine body 1, the water valve 42 on the surface of the cold water pipe 4 is opened through the molding machine body 1, cooling liquid is injected into the filling cavity 32, the cooling liquid flows out through the drain pipe 41 after heat transfer with the surface of the heating furnace 2, and the heating furnace 2 is cooled;

the heat preservation pad 3 in the chamber 32 will be filled through the setting is taken out to the connecting water pipe 4 and the drain pipe 41 among the cooling device, through cold water pipe 4 to filling the external cooling liquid source of infusing in the chamber 32, make the coolant liquid get into and fill in the chamber 32, and utilize the lateral wall of heat preservation box 31 and the surperficial heat transfer that takes place of heating furnace 2, the coolant liquid after rethread drain pipe 41 will heat is discharged, thereby make to have the characteristics of being convenient for in time cool down to heating furnace 2.

In order to prevent the heating furnace 2 from being damaged due to too fast temperature reduction, the heat preservation device is combined with the water cooling device, the electromagnet 7 is arranged on the upper surface of the heat preservation box 31 through the support rod 5 and the cross rod 6, the electromagnet 7 is powered through the thermoelectric generation sheet 47, the electromagnet 7 attracts the metal strip 9 below, the lower end of the metal strip 9 is connected with the heat preservation cushion 3 through the push bar 10, namely, when the temperature of the heating furnace 2 is too high, the voltage at two ends of the thermoelectric generation sheet 47 is increased, the current provided by the electromagnet 7 is enhanced, the magnetic force of the electromagnet 7 is enhanced, the metal strip 9 is attracted to drive the heat preservation cushion 3 to ascend, the friction between the rollers 11 at two ends of the push bar 10 and the inner wall of the sliding chute 12 is reduced, the space for containing the cooling liquid in the filling cavity 32 is increased, the temperature in the filling cavity 32 is rapidly reduced due to the increase of the amount of the cooling liquid, and the temperature difference at two ends of the thermoelectric generation sheet 47 is reduced, the voltage is reduced, so that the current passing through the electromagnet 7 is reduced, the magnetic force of the electromagnet 7 is reduced, the metal strip 9 pushes the heat insulation pad 3 to extend into the filling cavity 32 under the action of gravity, the cooling liquid in the filling cavity 32 enters the cooling cavity 65 through the water inlet pipe 61 under the extrusion of the piston frame 33, the inner bottom wall of the cooling cavity 65 is replaced by the heat conduction block 46 to be in contact with the surface of the electromagnet 7, the electromagnet 7 is cooled through the cooling liquid in the cooling cavity 65, the cooling liquid in the cooling cavity 65 flows into the filling cavity 32 again through the water outlet pipe 62, the content of the cooling liquid in the filling cavity 32 is reduced, the cooling effect is reduced, the temperature in the filling cavity 32 is increased, and the actions are repeated until the temperature tends to be balanced;

when in time monitoring is carried out to the intensification of filling in the chamber 32 through setting up thermoelectric generation piece 47, utilize the absorption control heat preservation pad 3 of electro-magnet 7 to metal strip 9 to fill taking out of intracavity 32, and then the content of control coolant liquid in filling chamber 32, and the temperature through heat and the coolant liquid of filling in the chamber 32 generates electricity thermoelectric generation piece 47, supply power to electro-magnet 7 again, and then make heat preservation pad 3 and the content of coolant liquid in filling chamber 32 tend to balanced gradually, avoid causing heating furnace 2 to damage or produce the influence to the processing of plastics product to the interior rapid cooling of filling chamber 32, thereby make to have the characteristics of being convenient for carry out intelligent cooling to heating furnace 2.

The working principle is as follows:

when in use, the cold water pipe 4 is connected with an external coolant source, when the plastic machine body 1 works, the heating furnace 2 is started, the heat-insulating pad 3 extends into the filling cavity 32 under the action of the tension spring 8 and the gravity, the heating furnace 2 is wrapped to reduce the heat loss on the surface of the heating furnace 2, when the heat in the heating furnace 2 is heated by the heat conduction block 46 on the surface of the filling cavity 32, the heat in the filling cavity 32 is transferred to the hot end of the thermoelectric generation piece 47 by the heat conduction block 46, the cooling liquid in the water accumulation groove 44 is used as the cold source of the thermoelectric generation piece 47 by the heat conduction block 46, further, the temperature of the heating furnace 2 is over high, so that the voltage at the two ends of the thermoelectric generation piece 47 is increased, the current provided by the electromagnet 7 is enhanced, high-temperature signals are transmitted to the plastic machine body 1, the magnetic force of the electromagnet 7 is increased and attracts the metal strip 9 to drive the heat-insulating pad 3 to ascend, and the rollers 11 at the two ends of the push strip 10 reduce friction with the inner wall of the sliding groove 12;

the plastic machine controls the water valve 42 to be opened, the cooling liquid enters the filling cavity 32 through the cold water pipe 4, the space for containing the cooling liquid in the filling cavity 32 is increased, the amount of the cooling liquid is increased, so that the temperature in the filling cavity 32 is rapidly reduced, the temperature difference at two ends of the thermoelectric generation sheet 47 is reduced, the voltage is reduced, the current is reduced through the electromagnet 7, the magnetic force of the electromagnet 7 is reduced, and the metal strip 9 pushes the heat preservation pad 3 to extend into the filling cavity 32 under the action of gravity;

the cooling liquid in the filling cavity 32 enters the cooling cavity 65 through the water inlet pipe 61 under the extrusion of the piston frame 33, the inner bottom wall of the cooling cavity 65 is replaced by the heat conduction block 46 to be in surface contact with the electromagnet 7, then the cooling liquid in the cooling cavity 65 cools the electromagnet 7, the cooling liquid in the cooling cavity 65 flows into the filling cavity 32 again through the water outlet pipe 62 to reduce the content of the cooling liquid in the filling cavity 32, the cooling effect is reduced, the temperature in the filling cavity 32 is increased, and the reciprocating actions are performed until the balance is reached.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a plastic film raw materials heating mechanism is with intelligent heat-proof device, is including moulding quick-witted body (1), its characterized in that: the upper end of the molding machine body (1) is provided with a heating furnace (2), the surface of the heating furnace (2) is provided with a heat preservation device, heat loss of the heating furnace (2) is reduced through the heat preservation device, and the heat preservation device comprises a heat preservation pad (3);

the surface of the heat preservation device is provided with a water cooling device, the heating furnace (2) is cooled by the water cooling device, and the water cooling device comprises a cold water pipe (4).

2. The intelligent heat insulation device for the plastic film raw material heating mechanism according to claim 1, characterized in that: the fixed surface of heating furnace (2) has cup jointed heat preservation box (31), heat preservation box (31) are hollow upper surface open-ended box body form, fill chamber (32) have been seted up at the upper surface edge of heat preservation box (31), the inner wall of filling chamber (32) and the surface sliding connection who fills up (3) keeps warm, four the equal fixedly connected with piston frame (33) of lower surface that fills up (3) keeps warm, piston frame (33) are rectangle square frame form, the surface of piston frame (33) and the interior diapire adaptation that fills chamber (32).

3. The intelligent heat insulation device for the plastic film raw material heating mechanism as claimed in claim 2, wherein: one end fixed connection in the lateral wall of heat preservation box (31) of cold water pipe (4), the lateral wall fixedly connected with drain pipe (41) of heat preservation box (31), drain pipe (41) and cold water pipe (4) are located the relative both sides of heat preservation box (31) respectively, the inside of cold water pipe (4) and the inside of drain pipe (41) all communicate with the inside of filling chamber (32), the surface mounting of cold water pipe (4) has water valve (42).

4. The intelligent heat insulation device for the plastic film raw material heating mechanism according to claim 3, characterized in that: the surface mounting of cold water pipe (4) has monitoring block (43), monitoring block (43) divide into two parts of front and back with cold water pipe (4), ponding groove (44) have been seted up to monitoring block (43) inside, two parts of cold water pipe (4) are through ponding groove (44) intercommunication, ponding groove (44) are the undercut form.

5. The intelligent heat insulation device for the plastic film raw material heating mechanism as claimed in claim 4, wherein: mounting groove (45) have all been seted up to the inner wall between heat preservation box (31) and monitoring piece (43), two the inside of mounting groove (45) communicates the inside of filling chamber (32) and the inside of ponding groove (44) respectively, two the equal fixedly connected with heat conduction piece (46) of inner wall of mounting groove (45), heat conduction piece (46) are formed by aluminium piece (461) and ceramic package (462) combination, the lateral wall surface of aluminium piece (461) and the lateral wall surface of ceramic package (462) all coat and have sealed glue (463).

6. The intelligent heat insulation device for the plastic film raw material heating mechanism according to claim 5, wherein: the temperature difference power generation device is characterized in that a temperature difference power generation piece (47) is fixedly connected to the inner wall between the heat preservation box (31) and the monitoring block (43), the hot end of the temperature difference power generation piece (47) is connected with the heat conduction block (46) on the surface of the heat preservation box (31) in a sliding mode, and the cold end of the temperature difference power generation piece (47) is connected with the heat conduction block (46) on the surface of the monitoring block (43) in a sliding mode.

7. The intelligent heat insulation device for the plastic film raw material heating mechanism as claimed in claim 6, wherein: the upper surface corner fixedly connected with bracing piece (5) of heat preservation box (31), adjacent two the equal fixedly connected with horizontal pole (6) in relative lateral wall upper end of bracing piece (5), the lower fixed surface of horizontal pole (6) is connected with electro-magnet (7), electro-magnet (7) and thermoelectric generation piece (47) electric connection.

8. The intelligent heat insulation device for the plastic film raw material heating mechanism according to claim 7, characterized in that: the lower surface of the electromagnet (7) is fixedly connected with a tension spring (8), the lower end of the tension spring (8) is fixedly connected with a metal strip (9), the lower surface of the metal strip (9) is fixedly connected with a push strip (10), the lower surface of the push strip (10) is fixedly connected with the upper surface of the heat-insulating pad (3), the lower end surface of the cross rod (6) is fixedly inserted with a water inlet pipe (61) and a water outlet pipe (62), the two water inlet pipes (61) are respectively positioned at two sides of the water outlet pipe (62), the surface of the water inlet pipe (61) and the surface of the water outlet pipe (62) are both in sliding connection with the inner side wall of the tension spring (8), the lower end of the water inlet pipe (61) is fixedly connected with and aligned with the lower surface of the piston frame (33), the lower surface of the heat-insulating pad (3) is provided with a water outlet hole (63), and the lower end of the water outlet pipe (62) is positioned in the water outlet hole (63), the outer surface of the lower end of the water outlet pipe (62) and the surface of the water inlet pipe (61) are fixedly sleeved with sealing plugs (64), a cooling cavity (65) is formed in the cross rod (6), and the inside of the cooling cavity (65) is communicated with the upper end of the water outlet pipe (62) and the upper end of the water inlet pipe (61).

9. The intelligent heat insulation device for the plastic film raw material heating mechanism according to claim 8, wherein: push away the both ends of strip (10) and all install gyro wheel (11), adjacent two spout (12) have all been seted up to the relative lateral wall surface of bracing piece (5), the inner wall of spout (12) and the surface sliding connection of gyro wheel (11).

10. The intelligent heat insulation device for the plastic film raw material heating mechanism according to claim 9, wherein: four the surface of bracing piece (5) all slides and has cup jointed protecting crust (13), the lower surface of protecting crust (13) and the upper surface fixed connection of heat preservation box (31) and align.