Honeycomb paperboard pressurizing and drying device

Abstract

The utility model relates to the technical field of drying devices, in particular to a honeycomb paperboard pressurizing and drying device which comprises a drying box, a pressurizing mechanism and a drying mechanism, a heating cavity is formed in the drying box, a placing plate is arranged at the top of the heating cavity, a plurality of air holes are formed in the placing plate, and the drying mechanism is arranged in the heating cavity; the pressurizing mechanism comprises a mounting base, a double-shaft motor and first lead screws, a mounting groove is formed in the bottom of the mounting base, the double-shaft motor is arranged in the mounting groove, the first lead screws are connected to the output ends of the two ends of the double-shaft motor correspondingly, the first lead screws are rotationally arranged in the mounting groove, rolling frames are arranged on the first lead screws, and pressing rollers are rotationally arranged on the rolling frames; the mounting seat is arranged above the placing plate, and the mounting seat is arranged on the lifting mechanism. According to the honeycomb paperboard drying device, uniform pressure can be applied to honeycomb paperboards, the honeycomb paperboards can be effectively prevented from being deformed and warped due to heating, and it is guaranteed that the honeycomb paperboards have good flatness after being dried.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically a honeycomb cardboard pressure drying device. Background Technology

[0002] Honeycomb cardboard is made based on the principle of the honeycomb structure in nature. It is a new type of sandwich structure environmentally friendly and energy-saving material made by bonding corrugated paper into countless hollow three-dimensional hexagons to form a whole load-bearing component—the paper core, and then bonding face paper to both sides. Honeycomb cardboard is popular in the market because of its light weight, low price, high strength and recyclability. Using honeycomb cardboard for packaging can replace wooden boxes and effectively reduce the damage rate of goods in the circulation process, making it safer and more environmentally friendly.

[0003] In the production process of honeycomb paperboard, after the paper core is made and bonded, the bonded part needs to be dried to remove moisture. In the existing honeycomb paperboard drying process, the honeycomb paperboard is generally placed in a drying box and dried by a heater. During the drying process, the pressure roller rolls on the top of the honeycomb paperboard to achieve rapid evaporation of moisture.

[0004] However, during the drying process, since the pressure roller can only press in one direction at a time, the pressure on both sides of the honeycomb paperboard is inconsistent during drying, resulting in uneven heating. This can easily lead to problems such as the edge of the face paper lifting up and wrinkles on the top and bottom of the face paper. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a honeycomb paperboard pressure drying device, which solves the problem of inconsistent pressure on both sides of the honeycomb paperboard during drying and pressing, thereby improving the uniformity of heating.

[0006] To achieve the above objectives, a honeycomb cardboard pressure drying device is provided according to an embodiment of the first aspect of this utility model, comprising a drying chamber, a pressure mechanism, and a drying mechanism. The drying chamber has a heating chamber inside, and a placement plate is provided on the top of the heating chamber. The placement plate has several ventilation holes. The drying mechanism is located within the heating chamber. The pressure mechanism includes a mounting base, a dual-axis motor, and a first lead screw. The mounting base has a mounting groove at its bottom, and the dual-axis motor is located within the mounting groove. The output ends of the dual-axis motor are respectively connected to the first lead screw. The first lead screw is rotatably mounted within the mounting groove, and a roller is mounted on the first lead screw. A pressure roller is rotatably mounted on the roller. The mounting base is located above the placement plate and is mounted on a lifting mechanism.

[0007] As a further embodiment of this utility model: the lifting mechanism includes a rotary motor and a second lead screw; lifting grooves are provided on both sides inside the drying chamber; the second lead screw is rotatably installed in the lifting groove on one side; a guide rod is installed in the lifting groove on the other side; mounting blocks are provided on the side walls at both ends of the mounting base; the mounting block at one end is threadedly connected to the second lead screw; the mounting block at the other end is slidably engaged with the guide rod; a rotary motor is provided on the top of the drying chamber; the output end of the rotary motor is connected to the second lead screw.

[0008] As a further embodiment of this utility model: the drying mechanism includes a heating box and heating tubes, the heating box is disposed below the placement plate, and a plurality of heating tubes are disposed inside the heating box.

[0009] As a further embodiment of this utility model: a hinged door is provided on the outside of the drying oven, and an observation window is provided on the hinged door.

[0010] As a further embodiment of this invention, an exhaust fan is provided on the top of the drying oven.

[0011] As a further embodiment of this utility model: the drying oven is provided with an air guide hood, which is fixedly installed above the mounting base and connected to the exhaust fan.

[0012] As a further embodiment of this utility model: the bottom sides of the drying oven are provided with sliding grooves, and the bottom of the placement plate is provided with a slider, which slides in cooperation with the sliding grooves.

[0013] As a further embodiment of this utility model, a handle is provided on the side of the placement plate near the outside of the drying oven.

[0014] As a further embodiment of this invention, the handle is made of heat-insulating material.

[0015] As a further embodiment of this utility model, the vent holes are arranged in a rectangular array.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model uses a dual-axis motor to drive the first lead screws at both ends to rotate within the mounting groove. Since the roller frame is threadedly connected to the first lead screw, when the first lead screw rotates, the roller frame will move linearly along the first lead screw, thereby driving the pressure roller to roll on the honeycomb paperboard. The two sets of pressure rollers can simultaneously apply uniform pressure to the honeycomb paperboard, which can effectively prevent the honeycomb paperboard from deforming or warping due to heat, and ensure that the honeycomb paperboard has good flatness after drying.

[0018] 2. This utility model uses a rotary motor to drive the second lead screw to rotate within the lifting groove. According to the lead screw transmission principle, when the lead screw rotates, the mounting block moves up and down along the lead screw, thereby driving the mounting seat to rise and fall. The mounting block at the other end slides with the guide rod to guide the movement, ensuring the smoothness of the mounting seat's rise and fall and preventing it from deviating. By controlling the height of the pressure roller, it can adapt to honeycomb paperboards of different thicknesses, improving the equipment's versatility and flexibility. At the same time, it can apply different pressures, making it easier for air and moisture inside the paperboard to be discharged, thus improving drying efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a honeycomb paperboard pressure drying device.

[0020] Figure 2 This is a cross-sectional view of the inside of the drying oven.

[0021] Figure 3 This is a schematic diagram of the mounting plate installation.

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the drying mechanism.

[0023] The attached diagram shows the following labels: 1. Drying oven; 11. Heating chamber; 12. Lifting groove; 13. Slide groove; 2. Placement plate; 21. Ventilation hole; 22. Sliding block; 3. Mounting base; 31. Mounting groove; 32. Dual-axis motor; 33. First lead screw; 34. Mounting block; 4. Roller frame; 41. Pressure roller; 5. Rotary motor; 51. Second lead screw; 52. Guide rod; 6. Heating box; 61. Heating tube; 7. Hinged door; 71. Observation window; 8. Exhaust fan; 81. Air guide cover; 9. Handle. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] like Figures 1 to 4 As shown, a honeycomb paperboard pressure drying device includes a drying box 1, a pressure mechanism and a drying mechanism. The drying box 1 is provided with a heating chamber 11 inside. The heating chamber 11 is provided with a placement plate 2 on the top. The placement plate 2 is provided with a plurality of ventilation holes 21, which are arranged in a rectangular array.

[0026] The drying mechanism is located inside the heating chamber 11; the pressurizing mechanism includes a mounting base 3, a dual-axis motor 32, and a first lead screw 33. The mounting base 3 has a mounting groove 31 at its bottom, and the dual-axis motor 32 is located inside the mounting groove 31. The output ends of the dual-axis motor 32 are respectively connected to the first lead screw 33. The first lead screw 33 is rotatably mounted inside the mounting groove 31. A roller frame 4 is mounted on the first lead screw 33, and a pressure roller 41 is rotatably mounted on the roller frame 4. The mounting base 3 is located above the placement plate 2 and is mounted on the lifting mechanism.

[0027] When processing the honeycomb paperboard, the mounting base 3 is first adjusted to a suitable height using the lifting mechanism. Then, the dual-axis motor 32 is started, driving the first lead screws 33 at both ends to rotate within the mounting groove 31. Since the roller frame 4 is threadedly connected to the first lead screw 33, the roller frame 4 moves linearly along the first lead screw 33 when the first lead screw 33 rotates, thereby driving the pressure rollers 41 to roll on the honeycomb paperboard. The two sets of pressure rollers 41 can simultaneously apply uniform pressure to the honeycomb paperboard, effectively preventing the honeycomb paperboard from deforming or warping due to heat, and ensuring that the honeycomb paperboard has good flatness after drying.

[0028] The lifting mechanism includes a rotary motor 5 and a second lead screw 51. Lifting grooves 12 are provided on both sides inside the drying chamber 1. The second lead screw 51 is rotatably installed in the lifting groove 12 on one side, and a guide rod 52 is installed in the lifting groove 12 on the other side. Mounting blocks 34 are provided on the side walls at both ends of the mounting base 3. The mounting block 34 at one end is threadedly connected to the second lead screw 51, and the mounting block 34 at the other end is slidably engaged with the guide rod 52. The rotary motor 5 is provided on the top of the drying chamber 1, and the output end of the rotary motor 5 is connected to the second lead screw 51.

[0029] The torque output by the rotary motor 5 drives the second lead screw 51 to rotate within the lifting groove 12. The mounting block 34 at one end of the mounting base 3 is threadedly connected to the second lead screw 51. According to the lead screw transmission principle, when the lead screw rotates, the mounting block 34 moves up and down along the lead screw, thereby driving the mounting base 3 to rise and fall. The mounting block 34 at the other end slides with the guide rod 52, serving as a guide to ensure the smoothness of the lifting of the mounting base 3 and prevent it from shifting.

[0030] By controlling the height of the pressure roller 41, the equipment can be adapted to honeycomb paperboards of different thicknesses, improving its versatility and flexibility. At the same time, it can apply different pressures, making it easier for air and moisture inside the paperboard to be discharged, thus improving drying efficiency.

[0031] A blower 8 is installed on the top of the drying chamber 1; an air guide hood 81 is installed inside the drying chamber 1, and the air guide hood 81 is fixedly installed above the mounting base 3 and communicates with the blower 8. The drying mechanism includes a heating chamber 6 and heating tubes 61. The heating chamber 6 is located below the placement plate 2, and a plurality of heating tubes 61 are installed inside the heating chamber 6.

[0032] When the heating element 61 is powered on, it generates heat using the thermal effect of the current. The heat is dissipated into the air inside the heating chamber 6, raising the air temperature. The hot air circulates within the drying chamber 1 under the action of natural convection and the exhaust fan 8, transferring heat to the honeycomb cardboard and causing the moisture inside the cardboard to evaporate.

[0033] When the exhaust fan 8 is working, it creates a negative pressure inside the drying chamber 1, causing hot air to flow upward from the heating chamber 6 and be drawn in by the exhaust fan 8 after passing through the honeycomb cardboard. The air guide hood 81 is located above the mounting base 3 and is connected to the exhaust fan 8. Its shape and structural design can guide the hot air to circulate along a predetermined path, making the hot air more evenly distributed inside the drying chamber 1 and improving the heat utilization rate.

[0034] The drying oven 1 is provided with a hinged door 7 on the outside, and an observation window 71 is provided on the hinged door 7.

[0035] The observation window 71 is usually made of transparent heat-resistant glass or plastic material and is installed on the hinged door 7, allowing the operator to observe the drying and hot pressing process at any time through the observation window 71.

[0036] The drying chamber 1 has sliding grooves 13 on both sides of its bottom, and the placement plate 2 has a slider 22 on its bottom, which slides in conjunction with the sliding grooves 13. A handle 9 is provided on the side of the placement plate 2 closest to the outside of the drying chamber 1; the handle 9 is made of heat-insulating material. The slider 22 and sliding grooves 13 facilitate pulling out the placement plate 2 via the handle 9, making it easy to place the honeycomb cardboard. The heat-insulating properties of the handle 9 ensure safe operation for personnel, preventing burns.

[0037] The working principle of this utility model is as follows: First, the honeycomb paperboard is placed on the placement plate 2 with ventilation holes 21 at the top of the heating chamber 11 inside the drying oven 1. The placement plate 2 is engaged with the bottom sliding groove 13 inside the drying oven 1 via the bottom slider 22, and can be pulled out by the heat-insulating handle 9 for easy operation. Next, the rotary motor 5 at the top of the drying oven 1 is started, which drives the second lead screw 51 in the lifting groove 12 on one side to rotate. Because the mounting block 34 at one end of the mounting base 3 is threadedly connected to it, and the mounting block 34 at the other end is slidably engaged with the guide rod 52, the mounting base 3 is lowered, and the pressure roller 41 on the mounting base 3 is adjusted to a suitable height to adapt to the thickness of the honeycomb paperboard. This height adjustment can improve the versatility and flexibility of the equipment, and can also allow the pressure roller 41 to better expel air and moisture from the paperboard. Then, the dual-axis motor 32 in the bottom mounting groove 31 of the mounting base 3 is started, which drives the first lead screw 33 at both ends to rotate, so that the pressure roller 41 on the roller frame 4 rolls on the honeycomb paperboard, applying uniform pressure to prevent it from deforming and warping due to heat. Afterwards, the heating tube 61 inside the heating box 6 is powered on and heats up. The hot air circulates under the action of natural convection and the exhaust fan 8. The exhaust fan 8 draws the hot air through the honeycomb cardboard and into the air guide hood 81, which is connected to the exhaust fan 8 and located above the mounting base 3. The air guide hood 81 guides the hot air to be evenly distributed, improves the heat utilization rate, and accelerates the drying of the cardboard.

[0038] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A honeycomb paperboard pressure drying device, comprising a drying box (1), a pressure mechanism and a drying mechanism, wherein a heating chamber (11) is provided inside the drying box (1), a placement plate (2) is provided on the top of the heating chamber (11), and a plurality of ventilation holes (21) are provided on the placement plate (2), and the drying mechanism is disposed inside the heating chamber (11); characterized in that The pressurizing mechanism includes a mounting base (3), a dual-axis motor (32), and a first lead screw (33). The mounting base (3) has a mounting groove (31) at its bottom. The dual-axis motor (32) is installed in the mounting groove (31). The output ends of the dual-axis motor (32) are respectively connected to the first lead screw (33). The first lead screw (33) is rotatably installed in the mounting groove (31). A roller frame (4) is installed on the first lead screw (33). A pressure roller (41) is rotatably installed on the roller frame (4). The mounting base (3) is located above the placement plate (2) and is also located on the lifting mechanism.

2. A device for pressure drying of honeycomb paperboard according to claim 1, characterized in that The lifting mechanism includes a rotary motor (5) and a second lead screw (51). The drying box (1) has lifting grooves (12) on both sides inside. The second lead screw (51) is rotatably installed in the lifting groove (12) on one side, and a guide rod (52) is installed in the lifting groove (12) on the other side. Mounting blocks (34) are installed on the side walls at both ends of the mounting base (3). One mounting block (34) is threadedly connected to the second lead screw (51), and the other mounting block (34) is slidably engaged with the guide rod (52). The top of the drying box (1) is equipped with a rotary motor (5), and the output end of the rotary motor (5) is connected to the second lead screw (51).

3. A pressurized drying apparatus for honeycomb paperboard according to claim 1, wherein The drying mechanism includes a heating box (6) and heating tubes (61). The heating box (6) is located below the placement plate (2), and a plurality of heating tubes (61) are provided inside the heating box (6).

4. A pressurized drying apparatus for honeycomb paperboard according to claim 1, wherein The drying oven (1) is provided with a hinged door (7) on the outside, and an observation window (71) is provided on the hinged door (7).

5. A pressurized drying apparatus for honeycomb paperboard according to claim 1, wherein The top of the drying oven (1) is equipped with an exhaust fan (8).

6. A pressurized drying apparatus for honeycomb paperboard according to claim 5, characterized in that The drying oven (1) is equipped with an air guide hood (81), which is fixedly installed above the mounting base (3) and connected to the exhaust fan (8).

7. A pressurized drying apparatus for honeycomb paperboard according to claim 1, wherein The drying oven (1) has sliding grooves (13) on both sides of the bottom, and the placement plate (2) has a slider (22) at the bottom, which slides in cooperation with the sliding grooves (13).

8. A pressurized drying apparatus for honeycomb paperboard according to claim 7, characterized in that The placement plate (2) is provided with a handle (9) on the side near the outside of the drying box (1).

9. A pressurized drying apparatus for honeycomb paperboard according to claim 8, characterized in that The handle (9) is made of heat-insulating material.

10. A pressurized drying apparatus for honeycomb paperboard according to claim 1, characterized in that, The vent holes (21) are arranged in a rectangular array.

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