Corrugated board drying device

Abstract

The utility model discloses a corrugated board drying device, which belongs to the field of corrugated board production equipment, and comprises a conveyor, a conveying belt is arranged on the conveyor, a plurality of top plates are uniformly arranged on the conveying belt along the surface of the conveying belt, a drying box is arranged at the top of the conveyor, and a drying box is arranged at the bottom of the conveyor. A drying channel is formed in the position, located above the conveying belt, of the bottom of the drying box, an electric heating assembly is arranged at the top of the drying box, an air guiding assembly is arranged on one side of the drying box, and an air outlet is formed in the other side of the drying box; the corrugated board forms high-speed flowing axial airflow on the upper side face and the lower side face of the corrugated board through the top board and the air guide assembly. According to the corrugated board drying device, an air flowing space is formed between a corrugated board and the conveying belt through the top plate, axial airflow exists on the upper side and the lower side of the corrugated board in cooperation with the air guiding assembly, the airflow flowing at a high speed can increase the air flowing speed of the surface of the corrugated board, evaporation of moisture on the surface of the corrugated board is accelerated, and then the drying effect is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated paperboard production equipment, in particular to a corrugated paperboard drying device. Background Art

[0002] Corrugated paperboard, also known as corrugated paperboard, is made of at least one layer of corrugated paper and one layer of boxboard (also called boxboard). It has good elasticity and extensibility and is mainly used to make cartons, the sandwich of cartons, and other packaging materials for fragile goods. During the production process of corrugated paperboard, it is necessary to dry it to remove moisture from the paper and make the paper hard and stable. The main purpose of the drying device is to control the appropriate temperature and humidity to make the corrugated paperboard reach the ideal dryness, thereby improving the strength and durability of the corrugated paperboard, and also facilitating printing operations after drying.

[0003] When the corrugated cardboard is being dried, the corrugated cardboard to be dried is transported to the drying mechanism by a belt conveyor for drying. During transportation, the bottom of the corrugated cardboard is completely in contact with the conveyor belt. At this time, there are the following problems: 1. Since the bottom of the corrugated cardboard is in contact with the conveyor belt during drying, the contact area between the corrugated cardboard and the conveyor belt is large, resulting in more heat loss during drying; 2. The contact between the corrugated cardboard and the conveyor belt causes the air at the bottom of the corrugated cardboard to not circulate, and the corrugated cardboard is heated unevenly. These two problems will lead to low drying efficiency of the corrugated cardboard drying device during drying. Utility Model Content

[0004] The utility model aims to solve the problem of low drying efficiency of the existing corrugated paperboard drying device and propose a corrugated paperboard drying device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technology: a corrugated cardboard drying device, comprising a conveyor, a conveyor belt is arranged on the conveyor, and a plurality of top plates evenly arranged along the surface of the conveyor belt are arranged on the conveyor belt, a drying box is arranged on the top of the conveyor, and a drying channel is opened at the bottom of the drying box above the conveyor belt, an electric heating component is arranged on the top of the drying box, an air guide component is arranged on one side of the drying box, and an air outlet is arranged on the other side of the drying box;

[0006] The corrugated cardboard forms high-speed axial airflow on its upper and lower sides through the top plate and the air guide assembly.

[0007] As a further description of the above technical solution: the air guide assembly includes a fixed cover arranged on the drying box, a blower connected to the fixed cover is arranged on the side of the fixed cover facing the outside of the drying box, and an air guide plate is arranged on the side of the fixed cover facing the inside of the drying box, and air guide holes are opened on the air guide plate.

[0008] As a further description of the above technical solution: the air guide hole includes an inlet section, a connecting section and an acceleration section arranged in sequence along the blowing direction of the blower, and the cross-sectional area of ​​the acceleration section is smaller than the cross-sectional area of ​​the inlet section.

[0009] As a further description of the above technical solution: the number of the air guide holes is several and they are arranged in two rows, and the corrugated cardboard is located between the two rows of air guide holes through the top plate.

[0010] As a further description of the above technical solution: both ends of the top plate are provided with limit blocks, and an anti-slip pad is pasted on the top of the top plate between the limit blocks.

[0011] As a further description of the above technical solution: the electric heating component includes a mounting seat that passes through the top of the drying box, an electric heating tube is arranged inside the mounting seat, and a wiring seat is arranged on the mounting seat.

[0012] As a further description of the above technical solution: a protective net is arranged at the bottom of the mounting seat, and a mounting plate abutting against the top of the drying box is arranged on the outer side of the mounting seat.

[0013] As a further description of the above technical solution: the electric heating tube is distributed in a serpentine shape inside the mounting base.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0015] 1. The top plate is used to create a space for air flow between the corrugated board and the conveyor belt. Then the air guide assembly blows air in a direction parallel to the upper and lower sides of the corrugated board, so that both sides of the corrugated board have high-speed airflows. These airflows are hot airflows heated by the electric heating assembly. The high-speed airflows can increase the air flow speed on the board surface, thereby accelerating the evaporation of moisture on the board surface, thereby enhancing the drying effect. In addition, the top plate reduces the contact area between the corrugated board and the conveyor belt, which can reduce heat loss during drying, thereby increasing the drying speed.

[0016] 2. The air guide component and the air outlet are arranged opposite to each other on the drying box. When the air guide component accelerates the flow speed of the hot air flow on the surface of the corrugated cardboard, the water vapor generated by drying can be quickly discharged through the air outlet under the action of the air guide component, so that the water vapor can be dissipated in time, thereby improving the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure schematic diagram provided according to the embodiment of the utility model is shown;

[0018] Figure 2 A schematic structural diagram of a conveyor provided according to an embodiment of the utility model is shown;

[0019] Figure 3 A partial splitting schematic diagram provided according to an embodiment of the utility model is shown;

[0020] Figure 4 A schematic diagram of the structure of an air guide assembly provided according to an embodiment of the utility model is shown;

[0021] Figure 5 A schematic diagram of the structure of the air guide hole provided according to an embodiment of the utility model is shown;

[0022] Figure 6 A schematic diagram of the structure of a top plate provided according to an embodiment of the utility model is shown;

[0023] Figure 7 A structural schematic diagram of an electric heating component provided according to an embodiment of the utility model is shown.

[0024] Legend:

[0025] 1. Conveyor; 2. Conveyor belt; 3. Top plate; 31. Limit block; 32. Anti-slip mat; 4. Drying box; 5. Drying channel; 6. Electric heating component; 61. Mounting seat; 62. Protective net; 63. Electric heating pipe; 64. Terminal block; 65. Mounting plate; 7. Air guide component; 71. Fixed cover; 72. Blower; 73. Air guide plate; 74. Air guide hole; 741. Inlet section; 742. Connecting section; 743. Acceleration section; 8. Air outlet. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1-Figure 7 The present embodiment provides a corrugated cardboard drying device, comprising a conveyor 1, a conveyor belt 2 is provided on the conveyor 1, and a plurality of top plates 3 evenly arranged along the surface of the conveyor belt 2 are provided on the conveyor 1, a drying box 4 is provided on the top of the conveyor 1, and a drying channel 5 is provided at the bottom of the drying box 4 above the conveyor belt 2, an electric heating component 6 is provided on the top of the drying box 4, an air guide component 7 is provided on one side of the drying box 4, and an air outlet 8 is provided on the other side of the drying box 4, and the corrugated cardboard forms a high-speed axial airflow on its upper and lower sides through the top plate 3 and the air guide component 7.

[0028] In the utility model, the corrugated cardboard to be dried is placed on the top plate 3 on the conveyor belt 2, and then the conveyor 1 is started to cooperate with the conveyor belt 2 to send the corrugated cardboard on the top plate 3 into the drying channel 5 of the drying box 4, and the electric heating component 6 heats the air inside the drying box 4, thereby drying the corrugated cardboard in the drying channel 5. During the drying process, the air guide component 7 cooperates with the air outlet 8 to form an axially flowing high-speed airflow on the upper and lower sides of the corrugated cardboard. These high-speed airflows are hot airflows heated by the electric heating component 6 in the drying box 4. The hot airflow flows at a high speed on the surface of the corrugated cardboard through the air guide component 7, thereby accelerating the evaporation of moisture on the surface of the cardboard, thereby enhancing the drying effect. Placing the corrugated cardboard on the top plate 3 can reduce the contact area between the corrugated cardboard and the conveyor belt 2, thereby reducing the heat loss rate during drying, thereby increasing the drying speed.

[0029] Specifically, Figure 1 , Figure 3 and Figure 4 As shown, the air guide assembly 7 includes a fixed cover 71 arranged on the drying box 4, a blower 72 connected to the fixed cover 71 is arranged on the side of the fixed cover 71 facing the outside of the drying box 4, and an air guide plate 73 is arranged on the side of the fixed cover 71 facing the inside of the drying box 4, and an air guide hole 74 is opened on the air guide plate 73.

[0030] The blower 72 blows air, and then the air flows through the air guide holes 74 on the air guide plate 73 and blows toward the corrugated cardboard in parallel to the upper and lower sides of the corrugated cardboard, thereby accelerating the air flow speed on the surface of the corrugated cardboard, thereby accelerating the evaporation of moisture on the surface of the cardboard, and further enhancing the drying effect.

[0031] Specifically, Figure 3-Figure 5 As shown, the air guide hole 74 includes an inlet section 741 , a connecting section 742 and an acceleration section 743 which are sequentially arranged along the blowing direction of the blower 72 , and the cross-sectional area of ​​the acceleration section 743 is smaller than the cross-sectional area of ​​the inlet section 741 .

[0032] Among them, the air flow blown by the blower 72 enters the air guide hole 74 through the inlet section 741, and then the air flow is blown out from the acceleration section 743. Since the cross-sectional area of ​​the acceleration section 743 is smaller than the cross-sectional area of ​​the inlet section 741, the air flow will be accelerated after flowing from the inlet section 741 to the acceleration section 743, thereby further accelerating the flow speed of the air flow on the surface of the corrugated cardboard, thereby improving the drying efficiency of the corrugated cardboard.

[0033] It should be noted that there are a plurality of air guide holes 74 arranged in two rows, and the corrugated board is located between the upper and lower rows of air guide holes 74 through the top plate 3. The upper and lower rows of air guide holes 74 face the upper and lower sides of the corrugated board respectively, so that when the blower 72 blows air, the air flow blown out by the air guide holes 74 can flow quickly on the upper and lower sides of the corrugated board, and the flow speed of the hot air flow on the surface of the corrugated board is increased while ensuring that the corrugated board is heated evenly, thereby increasing the drying speed.

[0034] Specifically, Figure 2 and Figure 6 As shown, both ends of the top plate 3 are provided with limit blocks 31, and the top of the top plate 3 is pasted with an anti-skid pad 32 between the limit blocks 31. When drying the corrugated cardboard, the corrugated cardboard is placed on the top plate 3 between the limit blocks 31, and the limit blocks 31 are used to limit the position of the corrugated cardboard to prevent it from shifting during the drying process. The anti-skid pad 32 increases the friction force to ensure that the corrugated cardboard is always located on the top of the top plate 3, so that there is space for airflow between the corrugated cardboard and the conveyor belt 2.

[0035] Specifically, Figure 3 and Figure 7 As shown, the electric heating component 6 includes a mounting seat 61 that passes through the top of the drying box 4. An electric heating pipe 63 is arranged inside the mounting seat 61, and a wiring seat 64 is arranged on the mounting seat 61. The electric heating pipe 63 is distributed in a serpentine shape inside the mounting seat 61.

[0036] When drying the corrugated cardboard, the terminal block 64 is connected to the power line, so that the electric heating tube 63 in the mounting base 61 is started. The serpentine-shaped electric heating tube 63 can increase the contact area with the air, thereby quickly heating the space inside the drying box 4, and then heating and drying the corrugated cardboard in the drying channel 5.

[0037] It should be noted that a protective net 62 is provided at the bottom of the mounting seat 61, and a mounting plate 65 is provided on the outer side of the mounting seat 61 to abut against the top of the drying box 4. The protective net 62 protects the electric heating pipe 63 in the mounting seat 61, and prevents the electric heating pipe 63 from being damaged by collision without affecting the heating of the electric heating pipe 63. The mounting plate 65 can realize the installation and removal of the electric heating component 6 on the top of the drying box 4, which is convenient for the removal and maintenance of the electric heating component 6.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A corrugated cardboard drying device, characterized in that: The invention comprises a conveyor (1), wherein a conveyor belt (2) is arranged on the conveyor (1), and a plurality of top plates (3) are arranged on the conveyor belt (2) and are evenly arranged along the surface thereof; a drying box (4) is arranged on the top of the conveyor (1), and a drying channel (5) is provided at the bottom of the drying box (4) located above the conveyor belt (2); an electric heating component (6) is arranged on the top of the drying box (4); an air guide component (7) is arranged on one side of the drying box (4), and an air outlet (8) is arranged on the other side of the drying box (4); The corrugated paperboard forms high-speed axial airflows on the upper and lower sides thereof through the top plate (3) and the air guide assembly (7).

2. A corrugated cardboard drying device according to claim 1, characterized in that: The air guide assembly (7) comprises a fixed cover (71) arranged on the drying box (4); a blower (72) connected to the fixed cover (71) is arranged on the side of the fixed cover (71) facing the outside of the drying box (4); and an air guide plate (73) is arranged on the side of the fixed cover (71) facing the inside of the drying box (4); and an air guide hole (74) is opened on the air guide plate (73).

3. A corrugated cardboard drying device according to claim 2, characterized in that: The air guide hole (74) comprises an inlet section (741), a connecting section (742) and an acceleration section (743) which are sequentially arranged along the blowing direction of the blower (72); the cross-sectional area of ​​the acceleration section (743) is smaller than the cross-sectional area of ​​the inlet section (741).

4. A corrugated board drying device according to claim 3, characterized in that: The number of the air guide holes (74) is several and they are arranged in two rows, one above the other. The corrugated paperboard is located between the two rows of air guide holes (74) through the top plate (3).

5. The corrugated cardboard drying device according to claim 1, characterized in that: Limiting blocks (31) are provided at both ends of the top plate (3), and an anti-slip pad (32) is pasted on the top of the top plate (3) between the limiting blocks (31).

6. A corrugated board drying device according to claim 1, characterized in that: The electric heating component (6) comprises a mounting seat (61) penetrating the top of the drying box (4), an electric heating pipe (63) is arranged inside the mounting seat (61), and a wiring seat (64) is arranged on the mounting seat (61).

7. A corrugated board drying device according to claim 6, characterized in that: A protective net (62) is provided at the bottom of the mounting seat (61), and a mounting plate (65) abutting against the top of the drying box (4) is provided on the outer side surface of the mounting seat (61).

8. The corrugated board drying device according to claim 6, characterized in that: The electric heating tubes (63) are distributed in a serpentine shape inside the mounting base (61).

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