A cardboard drying device

Abstract

The present invention discloses a cardboard drying device, belonging to the field of cardboard drying technology. A cardboard drying device of the present invention comprises a hot air drying unit, a cardboard conveying unit and a conveying shaft frame, wherein the hot air drying unit is arranged between the cardboard conveying units. In order to solve the problem that the hot air flow in the drying space cannot be guaranteed to evenly dry the surface and the inside of the cardboard, and the over-dried cardboard area is prone to wrinkles, each hot air drying unit will be responsible for conveying the hot air flow to the cardboard conveying units at both ends thereof, and at the same time, each cardboard conveying unit will also receive the hot air flow from the hot air drying units at both ends, so that the hot air flow will converge from both ends to the center, which can ensure the uniform distribution of heat. While the hot air drying unit realizes the hot air conveyance, the exhaust operation can be performed above each node, so that the internal steam can be discharged in time while realizing the uniform heat supply.

Description

Technical Field

[0001] The invention relates to the technical field of cardboard drying, in particular to a cardboard drying device. Background Art

[0002] Cardboard is usually made of various plant fibers as raw materials, and non-plant fibers are also mixed in. It is made on a cardboard machine. Some special cardboards are also mixed with animal fibers such as wool or mineral fibers such as asbestos; the invention with application number 201711036644.6 discloses a cardboard drying device, which transports the cardboard to the limiting mechanism through a conveyor to allow the cardboard to enter the drying box in an orderly manner through the feeding platform. The hot air box transmits the dry hot air to the drying box through the air inlet pipe, and then discharges it from the air outlet to dry the cardboard. It has a simple structure, high drying efficiency, and good drying quality. When the cardboard enters the drying mechanism, the third motor drives the fourth piston and the fourth piston shaft to drive the first limiting plate in the vertical direction. The fourth motor drives the fifth piston and the fifth piston shaft to drive the second limit plate to move in the vertical direction to limit and fix the center position of the cardboard. The hot air generated by the hot air box enters the drying chamber through the air inlet pipe and the first transmission pipe to dry the cardboard fixed in the drying chamber. The hot air is discharged from the air outlet through the second transmission pipe, so that during the drying process, the four sides and the center of the cardboard can be limited and fixed, so as to prevent the cardboard from deforming due to thermal expansion and contraction, which will affect the normal use of the cardboard and improve the quality of drying.

[0003] 1) The cardboard is dried by hot air, but it cannot guarantee that the hot air flow in the drying space can evenly dry the surface and inside of the cardboard, and the over-dried cardboard area is prone to wrinkles;

[0004] 2) During the drying process, the total amount of internal moisture in the cardboard needs to be controlled relatively accurately, but the traditional conveying structure can only realize the conveying operation of the cardboard and has no other expandable functions; therefore, it does not meet the existing needs. We propose a cardboard drying device. Summary of the invention

[0005] The object of the present invention is to provide a cardboard drying device, wherein each hot air drying unit is responsible for conveying hot air flow to the cardboard conveying units at both ends thereof, and each cardboard conveying unit also receives the hot air flow from the hot air drying units at both ends, so that the hot air flow converges from both ends to the center, thereby ensuring uniform distribution of heat. While the hot air drying unit realizes hot air conveyance, exhaust operation can be performed above each node thereof, thereby realizing uniform heat supply and timely discharging internal steam, thereby solving the problems in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cardboard drying device, comprising a hot air drying unit, a cardboard conveying unit and a conveying shaft frame, the hot air drying unit is arranged between the cardboard conveying units, the hot air drying unit comprises a transfer table box and a top window wind hood, and the top window wind hood is connected to the transfer table box by screws, the cardboard conveying unit comprises a conveying table box and a sealing wind hood, and the conveying table box and the sealing wind hood are connected by screws, the bottom of the hot air drying unit and the cardboard conveying unit are provided with a bottom support frame, and the bottom support frame is connected to the transfer table box and the conveying table box by screws, both sides of the hot air drying unit and the cardboard conveying unit are provided with a transmission pulley, and there are multiple transmission pulleys, the transmission pulley is rotatably connected to the top window wind hood and the sealing wind hood, the outer surface of the transmission pulley is provided with a transmission crawler, and the transmission crawler is combined and connected with the transmission pulley.

[0007] Preferably, an air cavity partition is provided inside the conveyor box, and the air cavity partition and the conveyor box are arranged as an integrated structure, channel air cavities are provided on both sides of the air cavity partition, and the channel air cavity extends through to the outer surface of the conveyor box, guide vanes are provided inside the channel air cavity, and an electrically controlled coupling is provided inside the middle section of the guide vanes, and the guide vanes are rotatably connected to the conveyor box via the electrically controlled coupling.

[0008] Preferably, a drying inner cavity is provided between the conveying platform box and the sealing hood, and an exhaust inner cavity is provided between the transfer platform box and the top window hood, and the exhaust inner cavity is connected to the drying inner cavity. A double-axis drying fan is provided inside the transfer platform box, and the double-axis drying fan is connected to the transfer platform box by screws, an air inlet window frame is provided below the double-axis drying fan, and an exhaust hood assembly is provided above the top window hood.

[0009] Preferably, air outlet gates are provided on the outer sides of both ends of the dual-axis drying fan, and the air outlet gates are connected to the transfer table box by screws, and wind window fan blade assemblies are provided on the surfaces of both ends of the dual-axis drying fan, and the wind window fan blade assemblies are connected to the dual-axis drying fan by screws.

[0010] Preferably, an air inlet gate is provided at the bottom of the double-axis drying fan, and the air inlet gate is connected to the double-axis drying fan through a flange, and the air inlet gate passes through the transfer table box and extends to the inside of the air inlet window frame.

[0011] Preferably, the exhaust hood assembly includes an air suction scoop and an exhaust duct, and the exhaust duct is arranged on the top of the air suction scoop, the exhaust duct is connected to the air suction scoop through a flange, and the air suction scoop is connected to the top window hood through screws, a top window grille is arranged on the surface of the top of the top window hood, and the top window grille is connected to the top window hood through a slot.

[0012] Preferably, a sealing plate frame is provided inside the air suction hopper, and the sealing plate frame is connected to the air suction hopper by screws, and a steam filter element is provided on the inner side of the sealing plate frame, and the steam filter element is connected to the sealing plate frame by a slot.

[0013] Preferably, the conveying axis frame includes a long axis conveying frame and a transfer conveying frame, and three long axis conveying frames and three transfer conveying frames are provided. The long axis conveying frame is arranged inside the cardboard conveying unit, and the transfer conveying frame is arranged inside the hot air drying unit. A heat flow plate window is arranged at the bottom of the long axis conveying frame, and the heat flow plate window is connected to the conveying platform box through a card slot, and the outer surface of the heat flow plate window is provided with a groove.

[0014] Preferably, the long-axis conveying frame and the transfer conveying frame both include a fixing bracket and a conveying pulley, wherein the transfer conveying frame also includes an induction wheel group, a surface of one side of the fixing bracket is provided with a transmission shaft groove, and the transmission pulley is connected to the conveying pulley through the transmission shaft groove, the induction wheel group includes an induction pulley and an expansion frame, a touch rod is provided on the outer surface of the induction pulley, insulating sleeves are provided at both ends of the induction pulley, the insulating sleeves are connected to the expansion frame by screws, and fan-shaped magnetic axes are provided on both sides of the surface of the insulating sleeves.

[0015] Preferably, a power supply center axis is provided inside the induction pulley, and the power supply center axis is rotatably connected to the insulating sleeve through a transmission connecting rod, a resistor seat cylinder is provided on the outer surface of the power supply center axis, a conductor spring is provided inside the resistor seat cylinder, the touch rod is electrically connected to the resistor seat cylinder through the conductor spring, and the touch rod is telescopically connected to the induction pulley.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, the hot air drying units and the cardboard conveying units are arranged alternately. During operation, the hot air drying units are responsible for conveying the external ambient air to the inside of the cardboard conveying units after drying and heating. Each hot air drying unit is responsible for conveying hot air to the cardboard conveying units at both ends thereof. At the same time, each cardboard conveying unit also receives the hot air from the hot air drying units at both ends. In this way, the hot air will converge from both ends to the center, which can ensure uniform distribution of heat. While the hot air drying units are conveying hot air, exhaust operation can be performed above each node thereof. While achieving uniform heat supply, internal steam can be discharged in time.

[0018] 2. In the present invention, each cardboard conveying unit has corresponding hot air drying units at both ends. In order to avoid the hot air drying units at both ends from colliding with each other during the hot air airflow conveying process of the cardboard conveying unit, it is necessary to design an air cavity partition inside the hot air conveying table box. The air cavity partition can be used to separate two channel air cavity areas. The hot air flow output from the hot air drying unit will contact the air cavity partition after entering the channel air cavity, and then diffuse to the interior of the entire air cavity partition;

[0019] 3. In the present invention, a plurality of guide vanes are installed inside the channel air cavity. The guide vanes can be rotatably connected with the conveying platform box through an electrically controlled coupling. The rotation angle of the guide vanes can be adjusted during the drying process. The inclined guide vanes are used to coordinate the direction of the hot air flow inside the channel air cavity so that it is evenly diffused into the drying inner cavity.

[0020] 4. In the present invention, three sets of conveyor frame structures are installed above each table box. In the three sets of conveyor frame structures, the surfaces of the retaining brackets on both sides are designed with transmission shaft grooves, which extend through and extend to the outside of the wind cover, so as to be conveniently connected with the external transmission belt pulley structure. The transmission belt pulley is used to drive the conveying pulley to rotate. A plurality of conveying pulleys are installed on the inner side of the retaining bracket. When in use, the cardboard is placed above the conveying pulley, and the conveying operation of the cardboard is realized by the rotation of the conveying pulley. The design of the pulley can reduce the contact area with the cardboard, so that the hot air flow can fully contact with the cardboard;

[0021] 5. In the present invention, in the middle area of ​​the transfer conveyor frame, the retaining bracket and the conveying pulley are replaced by an induction wheel group, which is composed of an induction pulley and an expansion frame. Four groups of retractable touch rod structures are arranged on the surface of the induction pulley. During the transportation of cardboard, the weight of the cardboard with moisture is relatively large. At this time, the cardboard will press the corresponding touch rod downward, thereby changing the gap distance between the touch rod and the resistor seat tube. The power supply center axis can sense the weight of the cardboard through the change of the resistance value at the resistor seat tube. When the moisture is dried, the moisture evaporates, the weight of the cardboard becomes lighter, and the touch rod rebounds. The device can increase the transmission rate of the cardboard and avoid excessive baking of the cardboard surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the overall front view of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the exhaust hood assembly of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the double-axis drying fan of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the steam filter element of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the long axis conveyor frame of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the induction wheel set of the present invention;

[0029] Figure 8 It is a schematic diagram of the induction pulley structure of the present invention;

[0030] Fig. 9 It is a schematic diagram of the cross-sectional structure of the induction pulley of the present invention;

[0031] Fig.10 It is a schematic diagram of the central axis structure of the power supply of the present invention.

[0032] In the figure: 1, hot air drying unit; 2, cardboard conveying unit; 3, bottom support frame; 4, driving pulley; 5, driving crawler; 6, double-axis drying fan; 7, conveying shaft frame; 101, transfer table box; 102, top window wind cover; 103, exhaust cavity; 104, top window grille; 201, conveying table box; 202, sealing wind cover; 203, drying cavity; 204, air cavity partition; 205, channel air cavity; 206, guide vane; 207, electric control coupling; 601, air inlet window frame; 602, exhaust hood assembly; 603, air outlet gate; 604, wind window fan blade assembly; 605, Air inlet gate; 6021, air suction scoop; 6022, exhaust duct; 6023, sealing plate frame; 6024, steam filter element; 701, long axis conveyor rack; 702, transfer conveyor rack; 703, induction wheel group; 7011, retaining bracket; 7012, conveying pulley; 7013, transmission shaft groove; 7014, heat flow plate window; 7031, induction pulley; 7032, expansion frame; 7033, touch rod; 7034, insulating bushing; 7035, fan-shaped magnetic axis; 7036, transmission connecting rod; 7037, power supply center axis; 7038, resistor seat tube; 7039, conductor spring. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-2 , the present invention provides the following technical solutions:

[0035] An embodiment of the present invention is as follows: a cardboard drying device comprises a hot air drying unit 1, a cardboard conveying unit 2 and a conveying shaft frame 7, wherein the hot air drying unit 1 is arranged between the cardboard conveying units 2, the hot air drying unit 1 comprises a transfer table box 101 and a top window wind cover 102, and the top window wind cover 102 is connected to the transfer table box 101 by screws, the cardboard conveying unit 2 comprises a conveying table box 201 and a sealing wind cover 202, and the conveying table box 201 is connected to the sealing wind cover 202 by screws, a bottom support frame 3 is arranged at the bottom of the hot air drying unit 1 and the cardboard conveying unit 2, and the bottom support frame 3 is connected to the transfer table box 101 and the conveying table box 201 by screws, a driving pulley 4 is arranged on both sides of the hot air drying unit 1 and the cardboard conveying unit 2, and there are a plurality of driving pulleys 4, the driving pulley 4 is rotatably connected to the top window wind cover 102 and the sealing wind cover 202, a driving crawler 5 is arranged on the outer surface of the driving pulley 4, and the driving crawler 5 is combined and connected with the driving pulley 4;

[0036] The whole drying device is composed of three parts: a hot air drying unit 1, a cardboard conveying unit 2 and a conveying shaft frame 7. The conveying shaft frame 7 is installed inside the hot air drying unit 1 and the cardboard conveying unit 2. When in use, the cardboard is placed above the conveying shaft frame 7, and the conveying shaft frame 7 is used to realize the mobile transportation operation of the cardboard.

[0037] The hot air drying unit 1 and the cardboard conveying unit 2 are arranged alternately. During operation, the hot air drying unit 1 is responsible for conveying the external ambient air to the inside of the cardboard conveying unit 2 after drying and heating. Each hot air drying unit 1 is responsible for conveying hot air flow to the cardboard conveying units 2 at both ends thereof. At the same time, each cardboard conveying unit 2 also receives the hot air flow from the hot air drying units 1 at both ends. In this way, the hot air flow will converge from both ends to the center, which can ensure uniform distribution of heat. While the hot air drying unit 1 realizes hot air conveyance, exhaust operation can be performed above each node, so that the internal steam can be discharged in time.

[0038] The conveying platform box 201 is provided with an air cavity partition 204, and the air cavity partition 204 and the conveying platform box 201 are provided with an integrated structure. Both sides of the air cavity partition 204 are provided with channel air cavities 205, and the channel air cavity 205 extends through the outer surface of the conveying platform box 201. The channel air cavity 205 is provided with a guide vane 206, and the middle section of the guide vane 206 is provided with an electric control coupling 207. The guide vane 206 is rotatably connected to the conveying platform box 201 through the electric control coupling 207. A drying inner cavity 203 is provided between the conveying platform box 201 and the sealing hood 202, and an exhaust inner cavity 103 is provided between the transfer platform box 101 and the top window hood 102, the exhaust inner cavity 103 is connected with the drying inner cavity 203, a double-axis drying fan 6 is provided inside the transfer platform box 101, and the double-axis drying fan 6 is connected to the transfer platform box 101 by screws, an air inlet window frame 601 is provided below the double-axis drying fan 6, and an exhaust hood assembly 602 is provided above the top window hood 102;

[0039] There are corresponding hot air drying units 1 at both ends of each cardboard conveying unit 2. In order to avoid the hot air drying units 1 at both ends from colliding with each other during the hot air airflow conveying process to the cardboard conveying unit 2, it is necessary to design an air cavity partition 204 inside the hot air conveying platform box 201. The air cavity partition 204 can be used to separate two channel air cavity 205 areas. The hot air flow output from the hot air drying unit 1 will contact the air cavity partition 204 after entering the channel air cavity 205, and then diffuse to the inside of the entire air cavity partition 204.

[0040] A plurality of guide vanes 206 are also installed inside the channel air cavity 205. The guide vanes 206 can be rotatably connected to the conveying platform box 201 through an electrically controlled coupling 207. The rotation angle of the guide vanes 206 can be adjusted during the drying process. The inclined guide vanes 206 are used to coordinate the direction of the hot air flow inside the channel air cavity 205 so that it is evenly diffused into the drying inner cavity 203.

[0041] See also Figure 3-5 , the present invention provides the following technical solutions:

[0042] An air outlet gate 603 is provided on the outer side of both ends of the double-axis drying fan 6, and the air outlet gate 603 is connected to the transfer table box 101 by screws, and a wind window fan blade assembly 604 is provided on the surface of both ends of the double-axis drying fan 6, and the wind window fan blade assembly 604 is connected to the double-axis drying fan 6 by screws, and an air inlet gate 605 is provided at the bottom of the double-axis drying fan 6, and the air inlet gate 605 is connected to the double-axis drying fan 6 by a flange, and the air inlet gate 605 passes through the transfer table box 101 and extends to the inside of the air inlet window frame 601;

[0043] The dual-axis drying fan 6 is installed inside the transfer table box 101. When the dual-axis drying fan 6 is running, the external air can be drawn into the fan from the air inlet gate 605 and the air inlet window frame 601, and then heated by the internal electric heating structure. The heated hot air will be discharged into the channel air cavity 205 at both ends through the air outlet gate 603, and the hot air flow inside the channel air cavity 205 will enter the drying inner cavity 203 with the help of the top window grille 104.

[0044] The exhaust hood assembly 602 includes an air suction hopper 6021 and an exhaust duct 6022, and the exhaust duct 6022 is arranged on the top of the air suction hopper 6021, the exhaust duct 6022 is connected to the air suction hopper 6021 through a flange, and the air suction hopper 6021 is connected to the top window hood 102 through screws, a top window grille 104 is arranged on the surface of the top of the top window hood 102, and the top window grille 104 is connected to the top window hood 102 through a slot, a sealing plate frame 6023 is arranged inside the air suction hopper 6021, and the sealing plate frame 6023 is connected to the air suction hopper 6021 through screws, a steam filter element 6024 is arranged on the inner side of the sealing plate frame 6023, and the steam filter element 6024 is connected to the sealing plate frame 6023 through a slot;

[0045] The exhaust hood assembly 602 is composed of an air suction hopper 6021 and an exhaust duct 6022. The other end of the exhaust duct 6022 is connected to the exhaust device. During the drying process of the cardboard, after the hot air flow contacts the cardboard carrying moisture, it is affected by the evaporation effect and some trace moisture will be mixed in the hot air flow. At this time, the heat-sealed air flow carrying steam can be extracted from the top window grille 104 through the exhaust duct 6022. During the extraction process, the air flow can also be filtered for moisture through the steam filter element 6024 provided inside the air suction hopper 6021, so that the hot air flow can be used for secondary use.

[0046] See also Figure 6 , the present invention provides the following technical solutions:

[0047] The long axis conveyor frame 701 and the transfer conveyor frame 702 both include a retaining bracket 7011 and a conveying pulley 7012, wherein the transfer conveyor frame 702 also includes an induction wheel group 703, a surface of one side of the retaining bracket 7011 is provided with a transmission shaft groove 7013, and the transmission pulley 4 is connected to the conveying pulley 7012 through the transmission shaft groove 7013, the induction wheel group 703 includes an induction pulley 7031 and an expansion frame 7032, the outer surface of the induction pulley 7031 is provided with a touch rod 7033, and both ends of the induction pulley 7031 are provided with an insulating sleeve 7034, and the insulating sleeve 703 4 is connected to the expansion frame 7032 by screws, sector-shaped magnetic shafts 7035 are arranged on both sides of the surface of the insulating sleeve 7034, a power supply center axis 7037 is arranged inside the induction pulley 7031, the power supply center axis 7037 is rotatably connected to the insulating sleeve 7034 through a transmission connecting rod 7036, a resistor seat cylinder 7038 is arranged on the outer surface of the power supply center axis 7037, a conductor spring 7039 is arranged inside the resistor seat cylinder 7038, the contact rod 7033 is electrically connected to the resistor seat cylinder 7038 through the conductor spring 7039, and the contact rod 7033 is telescopically connected to the induction pulley 7031;

[0048] The long axis conveyor frame 701 and the transfer conveyor frame 702 are different in length, but their components and structures are basically the same, wherein the long axis conveyor frame 701 is installed above the conveyor box 201, and a hot flow plate window 7014 is arranged between the long axis conveyor frame 701 and the conveyor box 201, and the hot air flow inside the conveyor box 201 can enter the area where the paperboard is located through the hot flow plate window 7014 and perform drying operation on it;

[0049] Three sets of conveyor rack structures are installed on the top of each table box. Among the three sets of conveyor rack structures, the surfaces of the retaining brackets 7011 located on both sides are designed with transmission shaft grooves 7013, which extend through and extend to the outside of the wind cover, so as to be conveniently connected with the external transmission belt wheel 4 structure, and the transmission belt wheel 4 is used to drive the conveying pulley 7012 to rotate. A plurality of conveying pulleys 7012 are installed on the inner side of the retaining bracket 7011. When in use, the cardboard is placed above the conveying pulley 7012, and the conveying operation of the cardboard is realized by the rotation of the conveying pulley 7012. The design of the pulley can reduce the contact area with the cardboard, so that the hot air flow can fully contact with the cardboard;

[0050] In the middle area of ​​the transfer conveyor frame 702, the retaining bracket 7011 and the conveying pulley 7012 are replaced by the induction wheel group 703. The induction wheel group 703 is composed of an induction pulley 7031 and an expansion frame 7032. Four groups of retractable touch rods 7033 are arranged on the surface of the induction pulley 7031. During the transportation of cardboard, the weight of the cardboard with moisture is relatively large. At this time, the cardboard will press the corresponding touch rod 7033 downward, thereby changing the gap distance between the touch rod 7033 and the resistor seat tube 7038. The power supply center axis 7037 can sense the weight of the cardboard through the change in the resistance value of the resistor seat tube 7038. When the moisture is dried, the moisture evaporates, the weight of the cardboard becomes lighter, and the touch rod 7033 rebounds. The device can increase the transmission rate of the cardboard and avoid excessive baking of the cardboard surface.

[0051] When the induction wheel group 703 rotates, the transmission connecting rods 7036 at both ends of the internal power supply axis 7037 will rotate inside the insulating sleeve 7034. During the rotation process, the transmission connecting rod 7036 and the fan-shaped magnetic axis 7035 on both sides of the insulating sleeve 7034 form a cutting magnetic flux line, so that the power supply axis 7037 can be supplied with electric energy without the need for additional lines.

[0052] Working principle: the whole drying device is composed of three parts: hot air drying unit 1, cardboard conveying unit 2 and conveying shaft frame 7. The hot air drying unit 1 and the cardboard conveying unit 2 are arranged alternately. During operation, the hot air drying unit 1 is responsible for conveying the external ambient air to the inside of the cardboard conveying unit 2 after drying and heating. Each hot air drying unit 1 is responsible for conveying hot air flow to the cardboard conveying units 2 at both ends. At the same time, each cardboard conveying unit 2 also receives the hot air flow from the hot air drying units 1 at both ends. In this way, the hot air flow will converge from both ends to the center. The hot air drying unit 1 can be closed to ensure uniform heat distribution. While realizing hot air transportation, the hot air drying unit 1 can perform exhaust operation above each node, so that the internal steam can be discharged in time. The conveying shaft frame 7 is installed inside the hot air drying unit 1 and the cardboard conveying unit 2. When in use, the cardboard is placed above the conveying shaft frame 7, and the conveying shaft frame 7 is used to realize the mobile transportation operation of the cardboard. The conveying shaft frame 7 includes a long axis conveying frame 701 and a transfer conveying frame 702, wherein the long axis conveying frame 701 is arranged inside the cardboard conveying unit 2, and the transfer conveying frame 702 The long axis conveyor frame 701 and the transfer conveyor frame 702 are arranged inside the hot air drying unit 1. Except for the difference in length, their composition structures are the same. The long axis conveyor frame 701 is installed above the conveying platform box 201. A hot flow plate window 7014 is arranged between the long axis conveyor frame 701 and the conveying platform box 201. The hot air flow inside the conveying platform box 201 can enter the area where the cardboard is located through the hot flow plate window 7014 and perform a drying operation on it. Three sets of conveyor frame structures are installed above each platform box. Among the three sets of conveyor frame structures, the retaining The surface of the bracket 7011 is designed with a transmission shaft groove 7013, which extends through and extends to the outside of the wind cover, so as to be conveniently connected to the external transmission belt wheel 4 structure. The transmission belt wheel 4 is used to drive the conveying pulley 7012 to rotate, and a plurality of conveying pulleys 7012 are installed on the inner side of the retaining bracket 7011. When in use, the cardboard is placed above the conveying pulley 7012, and the conveying operation of the cardboard is realized by rotating the conveying pulley 7012. The design of the pulley can reduce the contact area with the cardboard, so that the hot air flow can fully contact the cardboard.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A paperboard drying device, comprising a hot air drying unit (1), a paperboard conveying unit (2) and a conveying shaft frame (7), characterized in that: The hot air drying unit (1) is arranged between the cardboard conveying unit (2), the hot air drying unit (1) comprises a transfer platform box (101) and a top window wind cover (102), and the top window wind cover (102) is connected to the transfer platform box (101) by screws, the cardboard conveying unit (2) comprises a conveying platform box (201) and a sealing wind cover (202), and the conveying platform box (201) is connected to the sealing wind cover (202) by screws, and the bottom of the hot air drying unit (1) and the cardboard conveying unit (2) is provided A bottom support frame (3) is provided, and the bottom support frame (3) is connected to the transfer platform box (101) and the conveying platform box (201) by screws. Both sides of the hot air drying unit (1) and the paperboard conveying unit (2) are provided with a transmission pulley (4), and there are a plurality of transmission pulleys (4). The transmission pulley (4) is rotatably connected to the top window wind cover (102) and the sealing wind cover (202). The outer surface of the transmission pulley (4) is provided with a transmission crawler (5), and the transmission crawler (5) is combined and connected with the transmission pulley (4); The conveying platform box (201) is provided with an air cavity partition (204) inside, and the air cavity partition (204) and the conveying platform box (201) are provided as an integrated structure, channel air cavities (205) are provided on both sides of the air cavity partition (204), and the channel air cavity (205) extends through the outer surface of the conveying platform box (201), a guide vane (206) is provided inside the channel air cavity (205), and an electric control coupling (207) is provided inside the middle section of the guide vane (206), and the guide vane (206) is rotatably connected to the conveying platform box (201) via the electric control coupling (207); The conveying shaft frame (7) comprises a long shaft conveying frame (701) and a transfer conveying frame (702), and three of the long shaft conveying frame (701) and the transfer conveying frame (702) are provided. The long shaft conveying frame (701) is provided inside the paperboard conveying unit (2), and the transfer conveying frame (702) is provided inside the hot air drying unit (1). A heat flow plate window (7014) is provided at the bottom of the long shaft conveying frame (701), and the heat flow plate window (7014) is connected to the conveying platform box (201) via a slot, and an outer surface of the heat flow plate window (7014) is provided with a slot; The long axis conveying frame (701) and the transfer conveying frame (702) have the same structure. The long axis conveying frame (701) comprises a retaining bracket (7011) and a conveying pulley (7012), and there are multiple conveying pulleys (7012); The conveying pulley (7012) is arranged on the inner side of the retaining bracket (7011), and the conveying pulley (7012) is rotatably connected to the retaining bracket (7011); a transmission shaft groove (7013) is arranged on the surface of one side of the retaining bracket (7011), and the transmission pulley (4) is connected to the conveying pulley (7012) via the transmission shaft groove (7013).

2. A paperboard drying device according to claim 1, characterized in that: A drying inner cavity (203) is provided between the conveying table box (201) and the sealing hood (202), and an exhaust inner cavity (103) is provided between the transfer table box (101) and the top window hood (102); the exhaust inner cavity (103) is connected to the drying inner cavity (203); a double-axis drying fan (6) is provided inside the transfer table box (101), and the double-axis drying fan (6) is connected to the transfer table box (101) by screws; an air inlet window frame (601) is provided below the double-axis drying fan (6), and an exhaust hood assembly (602) is provided above the top window hood (102).

3. A paperboard drying device according to claim 2, characterized in that: Air outlet gates (603) are arranged on the outer sides of both ends of the dual-axis drying fan (6), and the air outlet gates (603) are connected to the transfer table box (101) by screws. Wind window fan blade assemblies (604) are arranged on the surfaces of both ends of the dual-axis drying fan (6), and the wind window fan blade assembly (604) is connected to the dual-axis drying fan (6) by screws.

4. A paperboard drying device according to claim 3, characterized in that: An air inlet gate (605) is provided at the bottom of the double-axis drying fan (6), and the air inlet gate (605) is connected to the double-axis drying fan (6) via a flange. The air inlet gate (605) passes through the transfer table box (101) and extends to the interior of the air inlet window frame (601).

5. A paperboard drying device according to claim 4, characterized in that: The exhaust hood assembly (602) comprises an air suction scoop (6021) and an exhaust duct (6022), wherein the exhaust duct (6022) is arranged at the top of the air suction scoop (6021), the exhaust duct (6022) is connected to the air suction scoop (6021) via a flange, and the air suction scoop (6021) is connected to the top window hood (102) via screws, a top window grille (104) is arranged on the surface of the top of the top window hood (102), and the top window grille (104) is connected to the top window hood (102) via a slot.

6. A paperboard drying device according to claim 5, characterized in that: A sealing plate frame (6023) is arranged inside the air suction hopper (6021), and the sealing plate frame (6023) is connected to the air suction hopper (6021) by screws. A steam filter element (6024) is arranged on the inner side of the sealing plate frame (6023), and the steam filter element (6024) is connected to the sealing plate frame (6023) by a slot.

Images