Quick-cooling heat shrinkage furnace

Abstract

The utility model relates to a quick-cooling heat shrinkage furnace, which comprises a furnace body, a transmission structure, a heating structure, a cooling structure and a detection sensor, the interior of the furnace body is divided into a buffer area, a heat insulation area and a cooling area, the buffer area is arranged between the heat insulation area and the cooling area, a plurality of layers of door curtains are adopted, seams of each layer of door curtains are staggered, and the heights of the lower edges of each layer of door curtains are different. The conveying structure is suitable for tobacco bales of different heights, a Teflon net is arranged on a conveying belt of the conveying structure, a refrigerating device in the cooling structure is rotationally arranged at the top of a cooling area, and a detection sensor is arranged in the furnace body. Through the structure, the problem of energy waste caused by convection between hot air in the furnace chamber of the existing thermal shrinkage furnace and ambient cold air is solved. Meanwhile, the temperature of the contact point of the stainless steel net chain in the hearth and the tobacco bale is too high, and the tobacco bale is greatly influenced. And a fan of the thermal shrinkage furnace is fixedly mounted, so that the cooling time of the tobacco bale is short, the surface temperature is too high, and operators are easy to damage when the tobacco bale is manually stacked.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco packaging, in particular to a rapid cooling and heat shrinking furnace. Background Art

[0002] The tobacco heat shrink oven known in my country's tobacco industry is a constant temperature oven that is transmitted through a network chain after the cigarette packing is completed. The shrinking temperature of the PE film is reached by the temperature of the oven, so that the PE film is tightly wrapped. The method of maintaining the oven temperature is to extract the air in the oven through the heater, heat it through the heating fin tube in the pipeline, and then blow it into the oven. The PID temperature control sensor of the oven is located at an internal point of the oven, and the detected temperature is the temperature of the environment. The standard cigarette stack is a square regular stack with 5 cigarettes per layer and 1 to 5 layers.

[0003] The inlet and outlet of the heat shrink furnace currently used for tobacco are installed with a single layer of Teflon curtains. However, in actual application, when the tobacco packs enter and exit the furnace, the curtains open and close, and the hot air in the furnace cavity will produce convection with the cold air in the environment, resulting in energy waste.

[0004] The cigarette packs in the furnace are transported by stainless steel mesh chains. Stainless steel has a high thermal conductivity coefficient and obvious temperature changes. Under the action of the heating tube, the stainless steel in the heating furnace heats up quickly, causing the temperature of the contact point between the mesh chain and the cigarette packs to be too high, which has a great impact on the cigarette packs. In addition, the fan of the heat shrink furnace is fixedly installed. After the cigarette packs shrink in the furnace, the cooling time is short when the cigarette packs pass through, and the surface temperature of the cigarette packs is still too high. When they are manually stacked, it is easy to cause injuries to the operators. Utility Model Content

[0005] The utility model provides a rapid cooling heat shrinking furnace, which solves the problem that the existing heat shrinking furnace opens and closes the curtain when the cigarette packs enter and exit the furnace, and the hot air in the furnace cavity will convect with the cold air in the environment, causing energy waste. At the same time, the cigarette packs in the furnace are transported by stainless steel mesh chains. Under the action of the heating tube in the heating furnace, the stainless steel quickly heats up, resulting in excessively high temperatures at the contact points between the mesh chain and the cigarette packs, which has a greater impact on the cigarette packs. In addition, the fan of the heat shrinking furnace is fixedly installed. After the cigarette packs shrink in the furnace, the cooling time is short when the cigarette packs pass through, and the surface temperature of the cigarette packs is still too high. When they are manually stacked, it is easy to cause injuries to the operators.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] The interior of the furnace body is divided into a buffer zone, an insulation zone, and a cooling zone. An inlet and an outlet are provided at both ends of the furnace body. The insulation zone, the cooling zone, and the buffer zone are separated by door curtains. The door curtains are multi-layered, and the seams of each layer of door curtains are staggered. The bottom edge height of each layer of door curtains is different, which is suitable for cigarette packages of different heights. The transmission structure is arranged at the bottom of the furnace body. The transmission structure passes through the insulation zone, the buffer zone, and the cooling zone. A Teflon mesh is arranged on the conveyor belt of the transmission structure. The heating structure is arranged in the insulation zone, and the cooling structure is arranged in the cooling zone. The refrigeration device in the cooling structure is rotatably arranged at the top of the cooling zone.

[0008] The beneficial effect of the utility model is as follows: by dividing the interior of the furnace body into a buffer zone, an insulation zone and a cooling zone, a buffer zone is set at both ends of the insulation zone respectively, so that the cigarette package enters the buffer zone before entering the insulation zone, and dissipates heat in the buffer zone before entering the cooling zone; when the door curtain of the insulation zone is opened, the heat emitted from the insulation zone can be gathered into the buffer zone; when the cigarette package enters the cooling zone from the buffer zone, after the cigarette package enters the cooling zone, the refrigeration device performs all-round cooling on the cigarette package, thereby achieving rapid cooling, realizing continuous cooling of the cigarette package, and meeting the cooling demand of the cigarette package.

[0009] Furthermore, the transmission structure comprises a first transmission structure and a second transmission structure, the first transmission structure is arranged at the bottom of the buffer zone and the cooling zone, the second transmission structure is arranged at the bottom of the insulation zone, and the first transmission structure is connected to the second transmission structure.

[0010] The beneficial effect of adopting the above further solution is that the transmission structure at the bottom of the insulation zone is more susceptible to damage due to the high temperature of the insulation zone. The first transmission structure is arranged at the bottom of the buffer zone and the cooling zone, and the second transmission structure is arranged at the bottom of the insulation zone, so that the entire transmission structure can be avoided from being replaced due to damage, thus saving costs.

[0011] Furthermore, the first transmission structure has a plurality of rotating shafts, which are arranged in sequence and perform rolling transmission.

[0012] The beneficial effect of adopting the above further solution is that the first transmission structure adopts multiple rotating shafts arranged in sequence and rolling transmission. During the transmission of the cigarette package, the gaps set between the multiple rotating shafts can dissipate the high heat at the bottom of the cigarette package, so that the bottom of the cigarette package no longer accumulates heat, thereby achieving rapid cooling in all aspects in the cooling area.

[0013] Furthermore, the second transmission structure is provided with a conveyor belt, which is transported by a stainless steel mesh chain, and the heat-insulating mesh arranged on the conveyor belt is a Teflon mesh belt.

[0014] The beneficial effect of adopting the above further scheme is that the conveyor belt is transported by a stainless steel mesh chain, stainless steel has a high thermal conductivity coefficient, and the temperature changes significantly. In the heating furnace, the stainless steel is rapidly heated under the action of the heating tube, and the plastic film outside the cigarette package can quickly wrap the bottom of the cigarette package. In order to avoid the excessive temperature of the contact point between the stainless steel mesh chain and the cigarette package, which affects the cigarette package, a Teflon mesh belt is set on the conveyor belt to reduce the impact on the cigarette package. At the same time, the Teflon mesh belt is attached to the original stainless steel mesh chain, so that the Teflon mesh belt has a rigid support, which extends the service life of the Teflon mesh belt.

[0015] Furthermore, the heating structure includes a heater and a first motor, the heater is arranged on the top of the insulation area, the first motor is arranged on the top of the furnace body, and the output end of the first motor is connected to the heater.

[0016] The beneficial effect of adopting the above further solution is that the first motor is arranged on the top of the furnace body, the heater is arranged in the insulation area, and the heater and the first motor are separated by the furnace body to prevent the high temperature in the insulation area from causing damage to the first motor.

[0017] Furthermore, the cooling structure includes a refrigeration device and a second motor. The refrigeration device is arranged on the top of the cooling area, and the output end of the second motor is connected to the refrigeration device.

[0018] The beneficial effect of adopting the above further solution is that, under the drive of the second motor, the fan of the refrigeration device continuously blows towards the cigarette packs, thereby achieving continuous cooling of the cigarette packs and meeting the cooling requirements of the cigarette packs.

[0019] Furthermore, a plurality of refrigeration devices are provided, and the plurality of refrigeration devices are rotatably arranged at the top of the cooling zone.

[0020] The beneficial effect of adopting the above further scheme is that multiple refrigeration devices are dispersedly arranged in the cooling area, so that during the transportation of the cigarette pack, multiple refrigeration devices can be aimed at multiple sides of the cigarette pack and continuously blow at the cigarette pack to achieve overall cooling of the cigarette pack, thereby meeting the cooling requirements of the cigarette pack.

[0021] Furthermore, buffer zones are respectively arranged on both sides of the heat insulation zone, the buffer zones are divided into a first buffer zone and a second buffer zone, and the interior of the furnace body is arranged in the order of a first buffer zone, a heat insulation zone, a second buffer zone, and a cooling zone.

[0022] The beneficial effect of adopting the above further solution is that the cigarette pack first enters the first buffer zone before entering the insulation zone, and first dissipates heat in the second buffer zone before entering the cooling zone. When the door curtain of the insulation zone is opened, the heat emitted from the insulation zone can be gathered into the first buffer zone and the second buffer zone, preventing the heat in the insulation zone from being directly dissipated to the outside of the furnace body, thereby avoiding waste of resources. At the same time, before the cigarette pack enters the cooling zone from the second buffer zone, the heat on the cigarette pack is first dissipated into the second buffer zone, and after entering the cooling zone, the cigarette pack can be cooled more quickly and in all directions.

[0023] Furthermore, the detection sensor is arranged in the second buffer zone and close to the cooling zone, and the detection sensor is connected to the refrigeration device.

[0024] The beneficial effect of adopting the above further scheme is that the detection sensor detects the cigarette pack located in the second buffer zone and about to enter the cooling zone, and the detection sensor transmits the signal to the refrigeration device. The refrigeration device is driven by the second motor to rotate the refrigeration device and the fan is aimed at the cigarette pack to keep the cigarette pack in a cooled state during the transportation process, thereby achieving overall cooling of the cigarette pack and meeting the cooling requirements of the cigarette pack.

[0025] Furthermore, the refrigeration device is an intelligent fan.

[0026] The beneficial effect of adopting the above further solution is that the refrigeration device adopts an intelligent fan, so that the intelligent fan can automatically start cooling after receiving a signal, so that the intelligent fan always blows towards the cigarette pack, realizing the overall cooling of the cigarette pack and meeting the cooling requirements of the cigarette pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a quick cooling heat shrinking furnace refrigeration device rotating in one direction according to the utility model;

[0028] Figure 2 It is a structural schematic diagram of a rapid cooling heat shrinking furnace refrigeration device rotating in another direction according to the utility model;

[0029] Figure 3 This is a schematic diagram of the structure of a rapid cooling heat shrinking furnace of the utility model;

[0030] Figure 4 This is a top view of a rapid cooling heat shrinking furnace of the utility model;

[0031] Figure 5 It is a side schematic diagram of a rapid cooling heat shrinking furnace of the utility model;

[0032] Figure 6 It is an enlarged schematic diagram of an energy-saving, fast-cooling and heat-shrinking door curtain of the utility model.

[0033] In the accompanying drawings, the list of components represented by each reference numeral is as follows: 1-furnace body; 11-buffer zone; 111-first buffer zone; 113-second buffer zone; 12-insulation zone; 13-cooling zone; 14-inlet; 15-exit; 16-door curtain; 2-transmission structure; 21-first transmission structure; 211-rotating shaft; 22-second transmission structure; 221-conveyor belt; 3-heating structure; 31-heater; 32-first motor; 4-cooling structure; 41-refrigeration device; 43-second motor; 5-detection sensor. DETAILED DESCRIPTION

[0034] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0035] Example 1

[0036] like Figure 1-6 As shown, the interior of the furnace body 1 is divided into a buffer zone 11, an insulation zone 12, and a cooling zone 13. An inlet 14 and an outlet 15 are provided at both ends of the furnace body 1. The insulation zone 12, the cooling zone 13 and the buffer zone 11 are separated by a door curtain 16. The door curtain 16 is multi-layered, and the seams of each layer of the door curtain 16 are arranged in a staggered manner. The bottom edge height of each layer of the door curtain 16 is different, which is suitable for cigarette packages of different heights. The transmission structure 2 is arranged at the bottom of the furnace body 1. The transmission structure 2 passes through the insulation zone 12, the buffer zone 11 and the cooling zone 13. A Teflon mesh is arranged on the conveyor belt 221 of the transmission structure 2. The heating structure 3 is arranged in the insulation zone 12, the cooling structure 4 is arranged in the cooling zone 13, and the refrigeration device 41 in the cooling structure 4 is rotatably arranged at the top of the cooling zone 13.

[0037] Specifically, the interior of the furnace body 1 is divided into a buffer zone 11, an insulation zone 12 and a cooling zone 13, and a buffer zone 11 is provided at both ends of the insulation zone 12, so that the cigarette pack enters the buffer zone 11 before entering the insulation zone 12, and dissipates heat in the buffer zone 11 before entering the cooling zone 13. When the door curtain 16 of the insulation zone 12 is opened, the heat emitted from the insulation zone 12 can be gathered into the buffer zone 11. When the cigarette pack enters the cooling zone 13 from the buffer zone 11, after the cigarette pack enters the cooling zone 13, the refrigeration device 41 performs all-round cooling on the cigarette pack, thereby achieving rapid cooling, realizing continuous cooling of the cigarette pack, and meeting the cooling demand of the cigarette pack.

[0038] like Figure 1-6 As shown, the transmission structure 2 has a first transmission structure 21 and a second transmission structure 22. The first transmission structure 21 is arranged at the bottom of the buffer zone 11 and the cooling zone 13, and the second transmission structure 22 is arranged at the bottom of the insulation zone 12. The first transmission structure 21 is connected to the second transmission structure 22 in a process.

[0039] Specifically, the cigarette pack is transferred to the buffer zone 11 by the first transfer structure 21 , then enters the heat insulation zone 12 , and then is transferred to the buffer zone 11 and the cooling zone 13 by the second transfer structure 22 .

[0040] like Figure 1-6 As shown, the first transmission structure 21 has a plurality of rotating shafts 211, and the plurality of rotating shafts 211 are arranged in sequence and are rolled for transmission.

[0041] Specifically, the first transmission structure 21 uses a plurality of rotating shafts 211 arranged in sequence and rollingly transported. During the transport of the cigarette pack, the gaps between the plurality of rotating shafts 211 can dissipate the high heat at the bottom of the cigarette pack, so that the bottom of the cigarette pack no longer accumulates heat, thereby achieving rapid cooling in all aspects in the cooling zone 13.

[0042] like Figure 1-6 As shown, the second transmission structure 22 is provided with a conveyor belt 221, and the conveyor belt 221 is transported by a stainless steel mesh chain, and the heat insulation net provided on the conveyor belt 221 is a Teflon mesh belt.

[0043] Specifically, the Teflon mesh belt is attached to the stainless steel mesh chain of the conveyor belt 221 so that the Teflon mesh belt has rigid support, and the bottom of the cigarette pack contacts the Teflon mesh belt to avoid the bottom of the cigarette pack directly contacting the high-temperature stainless steel mesh chain and causing the temperature to be too high, thereby affecting the cigarette pack.

[0044] like Figure 1-6 As shown, the heating structure 3 includes a heater 31 and a first motor 32 . The heater 31 is disposed on the top of the insulation area 12 , the first motor 32 is disposed on the top of the furnace body 1 , and the output end of the first motor 32 is connected to the heater 31 .

[0045] Specifically, the first motor 32 drives the heater 31, and the heater 31 heats the insulation area 12. When the cigarette pack passes through the insulation area 12, the high temperature in the insulation area 12 softens the plastic film wrapped around the outside of the cigarette pack, and the softened plastic film adheres to the outer surface of the cigarette pack.

[0046] like Figure 1-6 As shown, the cooling structure 4 includes a refrigeration device 41 and a second motor 43 . The refrigeration device 41 is disposed on the top of the cooling area 13 , and an output end of the second motor 43 is connected to the refrigeration device 41 .

[0047] Specifically, the refrigeration device 41 is driven by the second motor 43 so that the fan of the refrigeration device 41 is aimed at the cigarette pack, and the plastic film outside the cigarette pack is rapidly cooled in the cooling zone 13 due to thermal expansion and contraction to form a protective film.

[0048] like Figure 1-6As shown, a plurality of refrigeration devices 41 are provided, and the plurality of refrigeration devices 41 are rotatably disposed at the top of the cooling zone 13 .

[0049] Specifically, multiple refrigeration devices 41 are dispersedly arranged in the cooling zone 13, so that during the transportation of the cigarette pack, the multiple refrigeration devices 41 can be aimed at multiple sides of the cigarette pack to achieve overall cooling of the cigarette pack and meet the cooling requirements of the cigarette pack.

[0050] like Figure 1-6 As shown, buffer zones 11 are respectively arranged on both sides of the insulation zone 12. The buffer zones 11 are divided into a first buffer zone 111 and a second buffer zone 113. The interior of the furnace body 1 is arranged in the order of the first buffer zone 111, the insulation zone 12, the second buffer zone 113 and the cooling zone 13.

[0051] Specifically, the cigarette pack first enters the first buffer zone 111 before entering the heat insulation zone 12, and first dissipates heat in the second buffer zone 113 before entering the cooling zone 13. When the door curtain 16 of the heat insulation zone 12 is opened, the heat emitted from the heat insulation zone 12 can be gathered into the first buffer zone 111 and the second buffer zone 113, preventing the heat in the heat insulation zone 12 from being directly dissipated to the outside of the furnace body 1, thereby avoiding waste of resources. At the same time, before the cigarette pack enters the cooling zone 13 from the second buffer zone 113, the heat on the cigarette pack is first dissipated into the second buffer zone 113, and then after entering the cooling zone 13, the cigarette pack can be cooled more quickly and in all directions.

[0052] like Figure 1-6 As shown, the detection sensor 5 is disposed in the second buffer zone 113 and close to the cooling zone 13 , and the signal of the detection sensor 5 is transmitted to the refrigeration device 41 .

[0053] Specifically, the detection sensor 5 detects the cigarette pack located in the second buffer zone 113 and about to enter the cooling zone 13, and the detection sensor 5 transmits a signal to the refrigeration device 41. The refrigeration device 41 is driven by the second motor 43 to rotate the refrigeration device 41 and aim the fan at the cigarette pack to achieve overall cooling of the cigarette pack and meet the cooling requirements of the cigarette pack. In this embodiment, there are multiple detection sensors 5, and the multiple detection sensors 5 correspond to multiple refrigeration devices 41 respectively. In this embodiment, the detection sensor 5 can also be an infrared sensor, an image sensor, etc. Alternatively, the detection sensor 5 can also be other sensor elements with signal capture. In this embodiment, after the detection sensor 5 captures the information of the cigarette pack in place, it automatically starts to rotate the fan to achieve the wind direction always blowing towards the cigarette pack.

[0054] In this embodiment, the signal transmission method of the detection sensor 5 is the existing technology.

[0055] like Figure 1-6 As shown, the cooling device 41 is an intelligent fan.

[0056] Specifically, the refrigeration device 41 uses an intelligent fan. In this embodiment, after the detection sensor 5 captures the arrival information of the cigarette pack, the intelligent fan automatically starts to rotate.

[0057] The beneficial effects of this embodiment are as follows: the cigarette pack first enters the buffer zone 11 before entering the insulation zone 12, and first dissipates heat in the second buffer zone 113 before entering the cooling zone 13. When the door curtain 16 of the insulation zone 12 is opened, the heat emitted from the insulation zone 12 can be gathered into the first buffer zone 111 and the second buffer zone 113, preventing the heat in the insulation zone 12 from being directly dissipated to the outside of the furnace body 1, thereby avoiding waste of resources. Before the cigarette pack enters the cooling zone 13 from the buffer zone 11, after the detection sensor 5 captures the arrival information of the cigarette pack, the intelligent fan automatically starts to rotate, so that the wind direction is always blowing towards the cigarette pack. After the cigarette pack enters the cooling zone 13, the refrigeration device 41 cools the cigarette pack in all directions, thereby achieving a rapid cooling effect.

[0058] The working process of this embodiment is as follows: the cigarette pack is transported from the inlet 14 to the first buffer zone 111 by the first transport structure 21, and then transported to the insulation zone 12 by the second transport structure 22. The heater 31 rapidly increases the temperature in the insulation zone 12, and also rapidly increases the temperature on the conveyor belt 221. The cigarette pack enters the insulation zone 12 from the first buffer zone 111, and the high temperature of the insulation zone 12 softens the plastic film on the outer layer of the cigarette pack, so that the plastic film is attached to the outer layer of the cigarette pack. Then, the cigarette pack is transferred from the second transfer structure 22 to the first transfer structure 21, and enters the second buffer zone 113 from the heat insulation zone 12, where the high temperature on the surface is dissipated. When the cigarette pack is transferred to the detection range of the detection sensor 5, the detection sensor 5 transmits the detected data to the refrigeration device 41, which controls the actual temperature and position of the cigarette pack and aims the fan of the refrigeration device 41 at the cigarette pack. Multiple refrigeration devices 41 are arranged at multiple positions in the cooling zone 13, and multiple refrigeration devices 41 blow towards the cigarette pack at multiple angles at the same time until the cigarette pack is transferred out from the outlet 15.

[0059] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0060] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0061] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0064] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A rapid cooling heat shrinkage furnace, characterized in that: The invention comprises a furnace body (1), a transmission structure (2), a heating structure (3) and a cooling structure (4); the interior of the furnace body (1) is divided into a buffer zone (11), a heat insulation zone (12) and a cooling zone (13); an inlet (14) and an outlet (15) are provided at both ends of the furnace body (1); the heat insulation zone (12), the cooling zone (13) and the buffer zone (11) are separated by a door curtain (16); the door curtain (16) is multi-layered, and the bottom edge height of each layer of the door curtain (16) is different, so as to adapt to different heights. The transmission structure (2) is arranged at the bottom of the furnace body (1), the transmission structure (2) passes through the heat insulation area (12), the buffer area (11) and the cooling area (13), a heat insulation net is arranged on the conveyor belt (221) of the transmission structure (2), the heating structure (3) is arranged in the heat insulation area (12), the cooling structure (4) is arranged in the cooling area (13), and the refrigeration device (41) in the cooling structure (4) is rotatably arranged on the top of the cooling area (13).

2. A rapid cooling heat shrinking furnace according to claim 1, characterized in that: The transmission structure (2) comprises a first transmission structure (21) and a second transmission structure (22); the first transmission structure (21) is arranged at the bottom of the buffer zone (11) and the cooling zone (13); the second transmission structure (22) is arranged at the bottom of the insulation zone (12); and the first transmission structure (21) is connected to the second transmission structure (22).

3. A rapid cooling heat shrinking furnace according to claim 2, characterized in that: The first transmission structure (21) has a plurality of rotating shafts (211), and the plurality of rotating shafts (211) are arranged in sequence and perform rolling transmission.

4. The rapid cooling heat shrinking furnace according to claim 2, characterized in that: The second transmission structure (22) is provided with a conveyor belt (221), the conveyor belt (221) is transported by a stainless steel mesh chain, and the heat insulation mesh provided on the conveyor belt (221) is a Teflon mesh belt.

5. The rapid cooling heat shrinking furnace according to claim 1, characterized in that: The heating structure (3) comprises a heater (31) and a first motor (32), wherein the heater (31) is arranged at the top of the heat insulation area (12), the first motor (32) is arranged at the top of the furnace body (1), and the output end of the first motor (32) is connected to the heater (31).

6. The rapid cooling heat shrinking furnace according to claim 1, characterized in that: The cooling structure (4) comprises a refrigeration device (41) and a second motor (43), wherein an output end of the second motor (43) is connected to the refrigeration device (41).

7. A rapid cooling heat shrinking furnace according to claim 6, characterized in that: A plurality of refrigeration devices (41) are provided, and the plurality of refrigeration devices (41) are rotatably arranged at the top of the cooling zone (13).

8. The rapid cooling heat shrinking furnace according to claim 1, characterized in that: The buffer zone (11) is divided into a first buffer zone (111) and a second buffer zone (113), and the interior of the furnace body (1) is arranged in the order of the first buffer zone (111), the heat insulation zone (12), the second buffer zone (113), and the cooling zone (13).

9. The rapid cooling heat shrinking furnace according to claim 8, characterized in that: It also includes a detection sensor (5), which is arranged in the second buffer zone (113) and close to the cooling zone (13), and the detection sensor (5) is connected to the refrigeration device (41).

10. The rapid cooling heat shrinking furnace according to claim 1, characterized in that: The refrigeration device (41) is an intelligent fan.

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