Sectional type gradient curing equipment and method

Abstract

A second gate is arranged between a high-temperature curing bin and a cooling bin, two horizontal feeding grooves are symmetrically formed in the two side walls of a segmented curing box in the length direction, and feeding conveying belts are arranged at the bottoms of the horizontal feeding grooves; a feeding longitudinal groove is formed below the end of the horizontal feeding groove located in the low-temperature curing bin, the middle of the feeding longitudinal groove is communicated with the feeding horizontal groove, a discharging longitudinal groove is formed below the end of the horizontal feeding groove located in the cooling bin, and the middle of the discharging longitudinal groove is communicated with the discharging horizontal groove. A feeding lifting push rod and a discharging lifting push rod are respectively arranged in the feeding longitudinal groove and the discharging longitudinal groove; a first air conditioner, a heating device and a second air conditioner are respectively arranged in the low-temperature curing bin, the high-temperature curing bin and the cooling bin; and heat loss is reduced, and efficient utilization of heat energy is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of solvent-free compounding curing of high barrier packaging materials, in particular to a segmented gradient curing device and method. BACKGROUND

[0002] The curing process is a key process that makes the material performance stable or optimized through parameters such as time and temperature, and its process requirements differ significantly depending on the application field. In the packaging industry, curing is mainly used for composite film processing, with the purpose of promoting the parallel reaction of adhesives, improving the adhesion strength, and eliminating residual solvents.

[0003] In the traditional solvent-free compounding basic process, the adhesive film is coated with a 2um adhesive layer on the surface, which presents a concave-convex undulating surface. When the steel roll is pressed together with the bottom film, the interlayer gas is squeezed and pressed together. Due to the uneven surface, there are bubbles between the two layers pressed together. If high-temperature curing is immediately performed in the curing room at this time, the adhesive gradually warms up, the viscosity decreases, and the fluidity increases, which can fill the interlayer bubbles with adhesive. The squeezed bubbles will penetrate out from the film with small barrier properties due to the increased pressure. Reducing the bubble pressure is beneficial to the adhesive to further fill the bubble space, further infiltrate the substrate, increase the adhesive contact area, increase the adhesion, and complete the processes of extrusion, degassing, leveling, infiltration, cross-linking, and bonding.

[0004] The adhesive is a two-component, and as long as it is mixed together, the main agent and the curing agent will start to react, the molecular chain will lengthen, the molecular weight will increase, the viscosity will increase, and the fluidity will decrease. The higher the temperature, the faster the reaction, and the shorter the time from fluid to solid. Therefore, when the temperature of the adhesive increases, two processes occur. Process 1: the temperature increases, the molecular activity is intense, the viscosity decreases, and the fluidity increases. Process 2: the temperature increases, the molecular movement intensifies, the main agent and the curing agent react intensely, the molecular weight increases, and the viscosity increases. If high-temperature curing is directly implemented, high temperature will accelerate the migration of the slip agent in the film, causing a reaction with the adhesive layer and consumption, thereby significantly increasing the friction coefficient of the composite film and affecting the operability of the packaging production line. At the same time, direct high-temperature curing will cause the substrate to deform due to expansion or stress residue, resulting in bubbles after pressing. SUMMARY

[0005] In view of the shortcomings of the prior art, the present application provides a segmented gradient curing device and method, which has the advantages of simple structure, convenient operation, high work and operation efficiency, high intelligence, high mechanization, segmented gradient curing, effective reduction of bubbles after compounding, guarantee of efficient operation of the compounding process, and simple and easy-to-operate method, which overcomes the defects in the prior art.

[0006] The technical scheme of the present application is implemented as follows: a sectional gradient curing device, comprising a sectional curing box, wherein a low-temperature curing bin, a high-temperature curing bin and a cooling bin are sequentially arranged in the sectional curing box, a first gate is arranged between the low-temperature curing bin and the high-temperature curing bin, a second gate is arranged between the high-temperature curing bin and the cooling bin, two horizontal feeding grooves are symmetrically formed in the length direction of the two side walls of the sectional curing box, a feeding conveyor belt is arranged at the bottom of the horizontal feeding groove, a feeding longitudinal groove is arranged below the end of the horizontal feeding groove of the low-temperature curing bin, the middle part of the feeding longitudinal groove is communicated with the feeding horizontal groove, a discharging longitudinal groove is arranged below the end of the horizontal feeding groove of the cooling bin, the middle part of the discharging longitudinal groove is communicated with the discharging horizontal groove, a feeding lifting push rod and a discharging lifting push rod are respectively arranged in the feeding longitudinal groove and the discharging longitudinal groove, and a first air conditioner, a heating device and a second air conditioner are respectively arranged in the low-temperature curing bin, the high-temperature curing bin and the cooling bin.

[0007] The heating device comprises a hot air seat fixedly installed at the bottom of the high-temperature curing bin, a hot air bin is arranged in the hot air seat, an electric heating pipe is installed in the hot air bin, uniform outflow holes are formed in the top surface of the hot air seat, the hot air bin is communicated with the outside through an air guide pipe, an air guide fan is installed at the outer end of the air guide pipe, a control screen is installed on the sectional curing box above the air guide fan, a feeding baffle and a discharging baffle are arranged and installed on the outside of the low-temperature curing bin and the cooling bin, a feeding door is installed at the lower part of the feeding baffle through a first hydraulic rod, and a discharging door is installed at the lower part of the discharging baffle through a second hydraulic rod.

[0008] A feeding longitudinal conveyor belt is arranged in the inside of the feeding longitudinal groove, the feeding longitudinal conveyor belt is connected with the feeding lifting push rod through a feeding lifting seat, and the feeding longitudinal conveyor belt is driven by a first driving wheel and a first driven wheel.

[0009] A discharging longitudinal conveyor belt is arranged in the inside of the discharging longitudinal groove, the discharging longitudinal conveyor belt is connected with the discharging lifting push rod through a discharging lifting seat, and the discharging longitudinal conveyor belt is driven by a second driving wheel and a second driven wheel.

[0010] The top part of each of the feeding lifting push rod and the discharging lifting push rod is in a slope structure, the slope of the top part of the feeding lifting push rod gradually decreases from the feeding direction to the direction of the high-temperature curing bin, and the slope of the top part of the discharging lifting push rod gradually increases from the discharging direction to the direction of the high-temperature curing bin.

[0011] The upper parts of the first gate and the second gate are respectively communicated with a first gate protection cover and a second gate protection cover, and an air exhaust and dehumidification fan is fixedly installed on the outer wall of the sectional curing box at the top of the high-temperature curing bin.

[0012] The horizontal feeding groove extends from the low-temperature curing bin to the high-temperature curing bin and the cooling bin, and is located above the middle part of the segmented curing box; the feeding horizontal groove and the discharging horizontal groove have equal opening heights and are located below the middle part of the segmented curing box.

[0013] The feeding conveying belt is driven by a feeding driving wheel and a plurality of feeding driven wheels, and the feeding driving wheel is connected with the output end of the third motor arranged outside the segmented curing box.

[0014] A segmented curing method of the segmented gradient curing equipment, which comprises the following steps: S1, leveling: the material is loaded outside the sleeve, the support rod is sleeved inside the sleeve, the support rod is clamped at both ends with the feeding horizontal groove, and the support rod is advanced to the feeding longitudinal groove under the pushing of the feeder; the support rod is lifted to the horizontal feeding groove by the feeding lifting push rod; the feeding conveying belt is started; the material is conveyed to the middle part of the low-temperature curing bin by the support rod; the first air conditioner is started for low-temperature curing; the temperature range is 20-25 DEG C; and the time is 8-10 hours; S2, cross-linking and curing: after the low-temperature curing is completed, the first gate is opened; the material is conveyed to the middle part of the high-temperature curing bin by the support rod and the feeding conveying belt; the electric heating pipe is started for high-temperature curing; the temperature range is 40-45 DEG C; and the time is 20-48 hours; S3, cooling: after the low-temperature curing is completed, the second gate is opened; the material is conveyed to the middle part of the cooling bin by the support rod and the feeding conveying belt; the second air conditioner is started for cooling; the temperature range is 15-25 DEG C; and the time is 8-16 hours; S4, discharging: after the cooling is completed, the material is conveyed to the top of the discharging longitudinal groove by the support rod and the feeding conveying belt; the material is received by the discharging lifting push rod; when the discharging lifting push rod is lowered to the position of the discharging horizontal groove, the support rod slides into the discharging horizontal groove; the material is transferred out of the cooling bin by the material receiver and enters the next process of bag making or slitting.

[0015] The present application has the following positive effects: after the composite film leaves the curing chamber, it enters the cooling zone to start cooling and temperature reduction, and the temperature inside the roll remains high to continue curing, thereby ensuring that the high-temperature curing time of the roll surface, roll middle and roll bottom is consistent. After a certain time, the temperature of the whole roll is reduced to the cooling temperature, the composite film is shaped, and deformation under high temperature is avoided, thereby increasing the flatness of the product. After the temperature is reduced, the solubility of the slip agent in the PE and CPP is reduced, and the slip agent begins to gradually separate to the surface layer, thereby reducing the friction coefficient and increasing the flowability and bag opening property in the subsequent processing equipment.

[0016] The segmented gradient curing equipment adopts segmented curing boxes to carry out low-temperature curing, high-temperature curing and cooling as a whole. During the use of the segmented curing boxes, the three bin bodies are communicated with each other and separated through the gates, the heat is transferred to each other, the heat loss is reduced, and the efficient use of heat energy is realized. The material is automatically moved in the three bin bodies in the mode of the horizontal feeding groove cooperating with the feeding conveyor belt, cooperating with the heating and heating equipment, the overall intelligent degree is high, the time is full-automatic feeding, low-temperature curing, high-temperature curing, cooling and discharging, and the human resources are saved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of the present application.

[0018] Figure 2 It is a left view structural schematic diagram of the present application.

[0019] Figure 3 It is a right view structural schematic diagram of the present application.

[0020] Figure 4 It is an internal structure schematic diagram of the present application.

[0021] Figure 5 It is a low-temperature curing bin side internal structure schematic diagram one of the present application.

[0022] Figure 6 It is a low-temperature curing bin side internal structure schematic diagram two of the present application.

[0023] Figure 7 It is a cooling bin side internal structure schematic diagram one of the present application.

[0024] Figure 8 It is a cooling bin side internal structure schematic diagram two of the present application.

[0025] Figure 9 It is a high-temperature curing bin side internal structure schematic diagram of the present application. DETAILED DESCRIPTION

[0026] As Figure 1 , 2, 3, 4, 5, 6, 7, 8, 9, a segmented gradient curing equipment, including segmented curing box 1, the segmented curing box 1 in turn is provided with low-temperature curing bin 19, high-temperature curing bin 20 and cooling bin 21, first gate 43 is arranged between low-temperature curing bin 19 and high-temperature curing bin 20, second gate 42 is arranged between high-temperature curing bin 20 and cooling bin 21, two horizontal feeding grooves 29 are symmetrically opened in the length direction of the two side walls of segmented curing box 1, feeding conveyor belt 31 is arranged at the bottom of horizontal feeding groove 29, feeding longitudinal groove 23 is arranged below the end of horizontal feeding groove 29 located in low-temperature curing bin 19, the middle part of feeding longitudinal groove 23 is communicated with feeding horizontal groove 22, discharging longitudinal groove 41 is arranged below the end of horizontal feeding groove 29 located in cooling bin 21, the middle part of discharging longitudinal groove 41 is communicated with discharging horizontal groove 35, feeding lifting push rod 28 and discharging lifting push rod 40 are respectively arranged in feeding longitudinal groove 23 and discharging longitudinal groove 41, first air conditioner 33, heating device and second air conditioner 34 are respectively arranged in low-temperature curing bin 19, high-temperature curing bin 20 and cooling bin 21.Heating device includes hot air seat 44 fixedly installed at the bottom of high-temperature curing bin 20, hot air bin 47 is arranged in hot air seat 44, electric heating pipe 45 is installed in hot air bin 47, uniform outflow hole 46 is formed in the top surface of hot air seat 44, hot air bin 47 is communicated with the outside through air guide pipe 48, air guide fan 13 is installed at the outer end of air guide pipe 48, control panel 2 is installed on segmented curing box 1 above air guide fan 13, feeding baffle 7 and discharging baffle 10 are distributed and installed outside low-temperature curing bin 19 and cooling bin 21, feeding door 8 is installed below feeding baffle 7 through first hydraulic rod 9, discharging door 11 is installed below discharging baffle 10 through second hydraulic rod 12.When running, low-temperature curing bin 19, high-temperature curing bin 20 and cooling bin 21 are communicated with each other, feeding conveyor belt 31 is used to implement the material transfer between each bin, horizontal feeding groove 29 supports support rod 49, and support rod 49 moves from low-temperature curing bin 19 to high-temperature curing bin 20 and cooling bin 21 in the horizontal direction.The feeding operation adopts the mode of horizontal feeding and then lifting, the material is supported by the pushing equipment, support rod 49 is sent into horizontally arranged feeding horizontal groove 22, and then the material is pushed upward by feeding lifting push rod 28 until support rod 49 is sent into horizontal feeding groove 29.During the transfer process of low-temperature curing bin 19, high-temperature curing bin 20 and cooling bin 21, the two ends of support rod 49 are always located in horizontal feeding groove 29.During discharging operation, support rod 49 falls into discharging longitudinal groove 41 from the end of horizontal feeding groove 29, and then moves to the position of discharging horizontal groove 35 by the downward movement of discharging lifting push rod 40, and finally the discharging is supported by the discharging supporting equipment.

[0027] The first air conditioner 33, the heating device and the second air conditioner 34 provide the operating temperature of each warehouse body, the electric heating pipe 45 provides heat after heating, the external air is introduced into the hot air warehouse 47 through the air guide fan 13, and the air is heated through the electric heating pipe 45, and then blown into the high-temperature curing warehouse 20 upward through the uniform flow outlet hole 46.

[0028] The inside of the feeding longitudinal groove 23 is provided with a feeding longitudinal conveying belt 24, the feeding longitudinal conveying belt 24 is connected with a feeding lifting push rod 28 through a feeding lifting seat 27, the feeding longitudinal conveying belt 24 is driven through a first driving wheel 25 and a first driven wheel 26, and the first driving wheel 25 is connected with the output end of the first motor 3 installed on the outside of the sectional curing box 1. The inside of the discharging longitudinal groove 41 is provided with a discharging longitudinal conveying belt 37, the discharging longitudinal conveying belt 37 is connected with a discharging lifting push rod 40 through a discharging lifting seat 39, the discharging longitudinal conveying belt 37 is driven through a second driving wheel 38 and a second driven wheel 36, and the second driving wheel 38 is connected with the output end of the second motor 4 installed on the outside of the sectional curing box 1. The top of the feeding lifting push rod 28 and the discharging lifting push rod 40 are both inclined surface structures, the top of the feeding lifting push rod 28 is gradually lowered from the feeding direction to the direction of the high-temperature curing warehouse 20, and the top of the discharging lifting push rod 40 is gradually raised from the discharging direction to the direction of the high-temperature curing warehouse 20.

[0029] In operation, the feeding longitudinal conveying belt 24 and the discharging longitudinal conveying belt 37 provide power for the feeding lifting push rod 28 and the discharging lifting push rod 40 respectively, the feeding lifting push rod 28 and the discharging lifting push rod 40 are arranged along the outer edges of the feeding longitudinal groove 23 and the discharging longitudinal groove 41 respectively, and the first motor 3 and the second motor 4 provide operating power for the feeding longitudinal conveying belt 24 and the discharging longitudinal conveying belt 37 respectively.

[0030] The upper portions of the first gate 43 and the second gate 42 are respectively connected with the first gate protection cover 15 and the second gate protection cover 14, and the exhaust dehumidification fan 16 is fixedly installed on the outer wall of the sectional curing box 1 at the top of the high-temperature curing warehouse 20. The horizontal feeding groove 29 extends from the low-temperature curing warehouse 19 to the high-temperature curing warehouse 20 and the cooling warehouse 21, the horizontal feeding groove 29 is located above the middle part of the sectional curing box 1, the feeding horizontal groove 22 and the discharging horizontal groove 35 are equal in height and are both located below the middle part of the sectional curing box 1. The feeding conveying belt 31 is driven through a feeding driving wheel 32 and a plurality of feeding driven wheels 30, and the feeding driving wheel 32 is connected with the output end of the third motor 18 arranged on the outside of the sectional curing box 1.

[0031] In order to facilitate the transfer of materials from the vertical stage to the horizontal stage, the top slope of the feeding lifting push rod 28 gradually decreases from the feeding direction to the high-temperature curing bin 20 direction. During the handling and lifting process of the material feeding process, when the top of the feeding lifting push rod 28 drives the support rod 49 to rise to the height of the feeding end of the horizontal feeding groove 29, the support rod 49 slides into the horizontal feeding groove 29 under the action of gravity. Similarly, during the discharging process, when the discharging lifting push rod 40 drives the support rod 49 to fall to the position of the discharging horizontal groove 35, or the support rod 49 slides from the discharging end of the horizontal feeding groove 29 to the position of the discharging longitudinal groove 41, the top of the discharging lifting push rod 40 can smoothly transfer and receive the materials, and realize the automatic output of the support rod 49 to the position of the discharging horizontal groove 35.

[0032] A segmented curing method of a segmented gradient curing device, the method comprising the following steps: S1, leveling: the material 51 is loaded outside the sleeve 50, the support rod 49 is sleeved inside the sleeve 50, the two ends of the support rod 49 are clamped with the feeding horizontal groove 22, and as the feeding device is pushed, the support rod 49 advances to the feeding longitudinal groove 23, the support rod 49 is lifted to the horizontal feeding groove 29 by the feeding lifting push rod 28, the feeding conveyor belt 31 is started, and the material 51 is conveyed to the middle of the low-temperature curing bin 19 by the support rod 49, the first air conditioner 33 is started for low-temperature curing, the temperature range is 20-25°C, and the time is 8-10 hours; S2, cross-linking and curing: after the low-temperature curing is completed, the first gate 43 is opened, the material 51 is conveyed to the middle of the high-temperature curing bin 20 by the support rod 49 and the feeding conveyor belt 31, the electric heating pipe 45 is started for high-temperature curing, the temperature range is 40-45°C, and the time is 20-48 hours; S3, cooling: after the low-temperature curing is completed, the second gate 42 is opened, the material 51 is conveyed to the middle of the cooling bin 21 by the support rod 49 and the feeding conveyor belt 31, the second air conditioner 34 is started for cooling, the temperature range is 15-25°C, and the time is 8-16 hours; S4, discharging: after the cooling is completed, the material 51 is conveyed to the top of the discharging longitudinal groove 41 by the support rod 49 and the feeding conveyor belt 31, the material is received by the discharging lifting push rod 40, and when the discharging lifting push rod 40 falls to the position of the discharging horizontal groove 35, the support rod 49 slides into the discharging horizontal groove 35, the material is transferred out of the cooling bin 21 by the material receiver, and enters the next process of bag making or slitting.

[0033] Specific operation, flow process runtime, composite film under machine, adhesive flow filling uneven pits, bubble gas extrusion penetration, bubble small until disappear. Adhesive from the flow into a viscoelastic state. Crosslinking process runtime, adhesive continues to crosslink, molecular weight increases, complete reaction, various resistance increases. Curing reaction is completed more than 90%. After the low temperature curing bin 19 treatment, the interlayer has been fully flow flat infiltration, on the one hand, the adhesive and film molecules produce crosslinking, on the other hand, the adhesive intermolecular continue to crosslink, molecular weight continues to increase, the bonding strength, adhesive strength continues to increase, various resistance continues to increase. Cooling process, the composite film cooling, material properties restore, shaping.

[0034] The present application runs out of the high temperature curing bin 20, enters the cooling bin 21 to start cooling, the temperature in the roll keeps high temperature state to continue curing, which ensures the uniformity of the high temperature curing time of the roll surface, roll middle and roll bottom. After a certain time, the temperature of the whole roll is reduced to the cooling temperature, the composite film is shaped, avoiding being stretched and deformed under high temperature, increasing the flatness of the product. After the temperature is reduced, the solubility of the slip agent in PE, CPP decreases, and it begins to gradually separate out to the surface layer, reducing the friction coefficient, increasing the flowability on the subsequent processing equipment and the bag opening property.

Claims

1. A segmented gradient ripening device, comprising a segmented ripening chamber (1), characterized in that: The segmented curing box (1) is provided with a low-temperature curing chamber (19), a high-temperature curing chamber (20), and a cooling chamber (21) in sequence. A first gate (43) is provided between the low-temperature curing chamber (19) and the high-temperature curing chamber (20), and a second gate (42) is provided between the high-temperature curing chamber (20) and the cooling chamber (21). Two horizontal feeding troughs (29) are symmetrically opened on both sides of the segmented curing box (1) along its length. A feeding conveyor belt (31) is provided at the bottom of the horizontal feeding trough (29). A longitudinal feeding trough is provided below the end of the horizontal feeding trough (29) of the low-temperature curing chamber (19). The middle part of the feed longitudinal trough (23) is connected to the feed horizontal trough (22). The discharge longitudinal trough (41) is provided below the end of the horizontal feeding trough (29) in the cooling chamber (21). The middle part of the discharge longitudinal trough (41) is connected to the discharge horizontal trough (35). The feed longitudinal trough (23) and the discharge longitudinal trough (41) are respectively provided with a feed lifting push rod (28) and a discharge lifting push rod (40). The low temperature curing chamber (19), the high temperature curing chamber (20) and the cooling chamber (21) are respectively provided with a first air conditioner (33), a heating device and a second air conditioner (34).

2. The segmented gradient ripening device according to claim 1, characterized in that: The heating device includes a hot air seat (44) fixedly installed at the bottom of the high-temperature curing chamber (20), a hot air chamber (47) is provided inside the hot air seat (44), an electric heating tube (45) is installed inside the hot air chamber (47), a uniform air outlet hole (46) is opened on the top surface of the hot air seat (44), the hot air chamber (47) is connected to the outside through the air duct (48), an air blower (13) is installed at the outer end of the air duct (48), a control panel (2) is installed on the segmented curing box (1) above the air blower (13), a feed baffle (7) and a discharge baffle (10) are installed on the outer side of the low-temperature curing chamber (19) and the cooling chamber (21), a feed door (8) is installed at the lower part of the feed baffle (7) through the first hydraulic rod (9), and a discharge door (11) is installed at the lower part of the discharge baffle (10) through the second hydraulic rod (12).

3. The segmented gradient ripening device according to claim 1, characterized in that: The feed longitudinal trough (23) is provided with a feed longitudinal conveyor belt (24) inside. The feed longitudinal conveyor belt (24) is connected to the feed lifting push rod (28) through the feed lifting seat (27). The feed longitudinal conveyor belt (24) is driven by the first power wheel (25) and the first driven wheel (26). The first power wheel (25) is connected to the output end of the first motor (3) installed on the outside of the segmented curing box (1).

4. The segmented gradient ripening device according to claim 1, characterized in that: The discharge longitudinal trough (41) is provided with a discharge longitudinal conveyor belt (37) inside. The discharge longitudinal conveyor belt (37) is connected to the discharge lifting push rod (40) through the discharge lifting seat (39). The discharge longitudinal conveyor belt (37) is driven by the second power wheel (38) and the second driven wheel (36). The second power wheel (38) is connected to the output end of the second motor (4) installed on the outside of the segmented curing box (1).

5. The segmented gradient ripening device according to claim 1, characterized in that: The tops of the feeding lifting push rod (28) and the discharging lifting push rod (40) are both inclined structures. The top inclined surface of the feeding lifting push rod (28) gradually decreases from the feeding direction toward the high-temperature curing chamber (20), while the top inclined surface of the discharging lifting push rod (40) gradually increases from the discharging direction toward the high-temperature curing chamber (20).

6. The segmented gradient ripening device according to claim 1, characterized in that: The upper parts of the first gate (43) and the second gate (42) are respectively connected to the first gate protective cover (15) and the second gate protective cover (14). An exhaust dehumidifier fan (16) is fixedly installed on the outer wall of the segmented curing box (1) at the top of the high temperature curing chamber (20).

7. The segmented gradient ripening device according to claim 1, characterized in that: The horizontal feeding trough (29) extends from the low temperature curing chamber (19) to the high temperature curing chamber (20) and the cooling chamber (21). The horizontal feeding trough (29) is located above the middle of the segmented curing box (1). The opening height of the feeding horizontal trough (22) and the discharging horizontal trough (35) is equal, and both are located below the middle of the segmented curing box (1).

8. The segmented gradient ripening device according to claim 1, characterized in that: The feeding conveyor belt (31) is driven by the feeding drive wheel (32) and several feeding driven wheels (30). The feeding drive wheel (32) is connected to the output end of the third motor (18) located outside the segmented curing box (1).

9. A segmented ripening method for a segmented gradient ripening device as described in claim 2, characterized in that, The method includes the following steps: S1, Leveling: The material (51) is loaded onto the outside of the sleeve (50), and the support rod (49) is fitted inside the sleeve (50). The two ends of the support rod (49) are engaged with the feeding horizontal groove (22). As the feeder pushes, the support rod (49) moves to the feeding longitudinal groove (23). The support rod (49) is lifted to the horizontal feeding groove (29) by the feeding lifting push rod (28). The feeding conveyor belt (31) is turned on, and the material (51) is transported to the middle of the low temperature curing chamber (19) through the support rod (49). The first air conditioner (33) is turned on for low temperature curing. The temperature range is 20-25℃ and the time is 8-10 hours. S2, cross-linking and curing: After the low-temperature curing is completed, the first gate (43) is opened and the material (51) is transported to the middle of the high-temperature curing chamber (20) through the support rod (49) and the feeding conveyor belt (31). The electric heating tube (45) is turned on to carry out high-temperature curing. The temperature range is 40-45℃ and the time is 20-48 hours. S3, Cooling: After the low-temperature curing is completed, the second gate (42) is opened, and the material (51) is transported to the middle of the cooling chamber (21) through the support rod (49) and the feeding conveyor belt (31). The second air conditioner (34) is turned on for cooling. The temperature range is 15-25℃ and the time is 8-16 hours. S4. Discharge: After cooling is completed, the material (51) is transported to the top of the discharge longitudinal trough (41) by the support rod (49) and the feeding conveyor belt (31). The material is received by the discharge lifting push rod (40). When the discharge lifting push rod (40) descends to the position of the discharge horizontal trough (35), the support rod (49) slides into the discharge horizontal trough (35) and is transferred out of the cooling chamber (21) by the receiving device, and enters the next process of bag making or cutting.

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