A drying device for a transfer card production line

Abstract

The utility model provides a kind of drying device for transfer card paper production line, it is related to transfer card paper production technical field, and it includes: card paper drying machine body, infrared heater is mounted in heat preservation cover inner wall, the infrared heater right side is provided with first hot air drying cover, second hot air drying cover and third hot air drying cover, the first hot air drying cover, second hot air drying cover and third hot air drying cover are sequentially adjacent distribution, the first hot air drying cover, second hot air drying cover and third hot air drying cover lower end surface are all provided with air outlet net mouth, the first hot air drying cover, second hot air drying cover and third hot air drying cover upper end are all connected with constant temperature square tube by hot air output pipe, and the constant temperature square tube is connected with centrifugal fan by hot air input pipe.The utility model solves the problem that the hot air circulation flow that is uniformly emitted in the existing technology box is easy to be uneven, needs to be extended drying factory, leading to the problem of poor drying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of transfer cardboard production technology, specifically to a drying device for a transfer cardboard production line. Background Technology

[0002] Transfer cardboard uses a transfer aluminizing process, transferring patterns or metallic effects to the paper base surface through transfer coatings and composite adhesives, ultimately forming a plastic-free, biodegradable, and environmentally friendly product. The drying process is crucial in the transfer cardboard production line, directly determining the coating quality, the effectiveness of subsequent transfers, and the yield rate of the final product. A search revealed an existing technology (Announcement No.: CN202021821329.1) for a drying device in a transfer cardboard production line. The document describes how "by using a ventilation pipe, handle, and stopper, the ventilation pipe can be shielded to prevent insects and other foreign objects from entering the box, while also sealing the ventilation pipe during the drying process to prevent heat from escaping, making it more convenient for users." However, the existing technology suffers from uneven heat circulation within the box, requiring extended drying times and resulting in poor drying efficiency. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, a drying device for a transfer cardboard production line is provided to solve the problem that the uniform circulation of hot air emanating from the box in existing technologies is prone to uneven flow, requiring extended drying time before delivery, resulting in poor drying efficiency.

[0004] To achieve the above objectives, a drying device for a transfer cardboard production line is provided, comprising: a cardboard dryer body, wherein a heat insulation cover is fixedly installed on the upper surface of the cardboard dryer body. An infrared heater is installed on the inner wall of the heat insulation cover. A first hot air drying cover, a second hot air drying cover, and a third hot air drying cover are arranged on the right side of the infrared heater. The first hot air drying cover, the second hot air drying cover, and the third hot air drying cover are arranged adjacent to each other in sequence. An air outlet is provided on the lower end face of the first hot air drying cover, the second hot air drying cover, and the third hot air drying cover. A constant temperature square tube is connected to the upper end of the first hot air drying cover, the second hot air drying cover, and the third hot air drying cover through a hot air output pipe. A centrifugal fan is connected to the constant temperature square tube through a hot air input pipe.

[0005] Furthermore, a temperature control cabinet is provided on the front face of the cardboard dryer body, and a conveyor belt is installed inside the cardboard dryer body; and the air outlet faces the upper surface of the conveyor belt.

[0006] Furthermore, the inner walls of the front and rear sides of the cardboard dryer are provided with staggered exhaust vents, and the outer walls of the front and rear sides of the cardboard dryer are equipped with air guide frames.

[0007] Furthermore, a centrifugal fan is installed on the upper surface of the air guide frame plate; and the inner cavity of the air guide frame plate is connected to the exhaust vent.

[0008] Furthermore, an adsorption mesh plate is sealed and inserted into the inner side of the air guide frame plate, and the exhaust mesh port corresponds one-to-one with the first hot air drying hood, the second hot air drying hood, and the third hot air drying hood.

[0009] Furthermore, the inner side of the heat insulation cover is connected to the first hot air drying cover, the second hot air drying cover, and the third hot air drying cover via a partition.

[0010] Furthermore, ventilation chambers are provided inside the first, second, and third hot air drying hoods, and the air outlet is connected to the hot air output pipe through the ventilation chambers.

[0011] Furthermore, a heating chamber is provided inside the constant temperature square tube, and electric heaters are arranged and installed inside the heating chamber.

[0012] The beneficial effects of this utility model are as follows: the drying device for the transfer cardboard production line utilizes an infrared heater, a first hot air drying hood, a second hot air drying hood, and a third hot air drying hood to form a multi-stage drying mechanism. The infrared heater pre-dries the transfer cardboard entering the dryer, and then the independent, multiple sets of centrifugal fans and constant temperature square tubes force the airflow in the corresponding hot air drying hood space to circulate in a forced convection manner. This allows the hot air drying hood to spray the heated airflow at high speed onto the coating surface of the transfer cardboard, facilitating efficient and rapid drying of the coating of the transfer cardboard on the production line. It also allows for segmented control of the hot air temperature in each zone, accelerates the heat circulation flow speed, significantly shortens the drying time of the transfer cardboard, and improves the drying efficiency of the drying device. Attached Figure Description

[0013] Figure 1 This is a front view structural schematic diagram of a drying device for a transfer cardboard production line according to an embodiment of the present invention.

[0014] Figure 2 This is a front cross-sectional view of a drying device for a transfer cardboard production line according to an embodiment of the present invention.

[0015] Figure 3 This is a side view of the connection structure of the second hot air drying hood according to an embodiment of the present invention.

[0016] Figure 4 This is a side view cross-sectional structural diagram of the thermostatic square tube according to an embodiment of the present invention.

[0017] In the diagram: 1. Cardboard dryer body; 11. Temperature control cabinet; 12. Conveyor belt; 13. Exhaust vent; 2. Insulation cover; 21. Partition; 3. Centrifugal fan; 31. Hot air inlet pipe; 32. Air guide frame; 33. Adsorption mesh plate; 4. Infrared heater; 5. First hot air drying hood; 51. Second hot air drying hood; 52. Third hot air drying hood; 53. Hot air outlet pipe; 54. Ventilation chamber; 55. Air outlet; 6. Constant temperature square tube; 61. Electric heater; 62. Heating chamber. Detailed Implementation

[0018] Reference Figures 1 to 4 As shown, this utility model provides a drying device for a transfer cardboard production line, including: a cardboard dryer body 1, with a heat insulation cover 2 fixedly installed on the upper surface of the cardboard dryer body 1. An infrared heater 4 is installed on the inner wall of the heat insulation cover 2. A first hot air drying cover 5, a second hot air drying cover 51, and a third hot air drying cover 52 are arranged on the right side of the infrared heater 4. The first hot air drying cover 5, the second hot air drying cover 51, and the third hot air drying cover 52 are arranged adjacent to each other in sequence. An air outlet 55 is provided on the lower end face of the first hot air drying cover 5, the second hot air drying cover 51, and the third hot air drying cover 52. A constant temperature square tube 6 is connected to the upper end of the first hot air drying cover 5, the second hot air drying cover 51, and the third hot air drying cover 52 through a hot air output pipe 53. A centrifugal fan 3 is connected to the constant temperature square tube 6 through a hot air input pipe 31.

[0019] First, the heating temperatures of the infrared heater 4 and the electric heater 61 inside the constant temperature square tube 6 are set. The cardboard after the transfer process is conveyed into the cardboard dryer body 1 via the conveyor belt 12. The transferred cardboard first passes under the infrared heater 4, causing the infrared emitter 4 to generate electromagnetic waves of a specific wavelength, which are directly absorbed by the coating and paper and converted into heat energy, so that the transferred cardboard is heated and pre-dried quickly, and its surface forms a skin quickly to prevent defects in the leveling process of the transfer coating. Then, it moves sequentially to the area under the first hot air drying hood 5, the second hot air drying hood 51, and the third hot air drying hood 52. The centrifugal fan 3 accelerates the airflow drawn from the exhaust net 13 and delivers it to the constant temperature square tube 6 for heating to a certain temperature. Then, the hot air is directly discharged onto the surface of the cardboard coating through the first hot air drying hood 5, the second hot air drying hood 51, and the third hot air drying hood 52. The forced convection accelerates the airflow circulation, making the heating and drying more uniform. After the cardboard has undergone multiple drying processes, it is moved out from the right side of the cardboard dryer body 1 for the next processing step.

[0020] In this embodiment, a temperature control cabinet 11 is provided on the front end face of the cardboard dryer body 1, and a conveyor belt 12 is installed on the inner side of the cardboard dryer body 1; and the air outlet 55 faces the upper surface of the conveyor belt 12.

[0021] In a preferred embodiment, the temperature control cabinet 11 contains controllers and circuits related to the electrical components of the cardboard dryer body 1, facilitating the adjustment of multiple drying temperatures within the cardboard dryer body 1. The conveyor belt 12 facilitates the collection of transferred cardboard from the production line, conveying the transferred cardboard into the cardboard dryer body 1 for drying.

[0022] In this embodiment, exhaust vents 13 are staggered on the inner walls of the front and rear sides of the cardboard dryer body 1, and air guide plates 32 are installed on the outer walls of the front and rear sides of the cardboard dryer body 1. A centrifugal fan 3 is installed on the upper surface of the air guide plate 32; and the inner cavity of the air guide plate 32 is connected to the exhaust vents 13. An adsorption mesh plate 33 is sealed and inserted into the inner side of the air guide plate 32, and the exhaust vents 13 correspond one-to-one with the first hot air drying hood 5, the second hot air drying hood 51, and the third hot air drying hood 52.

[0023] As a preferred implementation, the exhaust vent 13 facilitates the extraction of hot air from the corresponding hot air drying hood into the air guide plate 32 cavity, and then the hot air in the air guide plate 32 cavity is transported to the hot air drying hood by the centrifugal fan 3, thereby achieving forced convection of hot air and making the hot air circulation more uniform. The adsorption mesh plate 33 is provided with granular materials such as activated carbon and bamboo charcoal to absorb moisture and odors, which facilitates the absorption of moisture and odors volatilized from the coating in the airflow.

[0024] In this embodiment, the inner side of the heat insulation cover 2 is connected to the first hot air drying cover 5, the second hot air drying cover 51, and the third hot air drying cover 52 via a partition 21. Ventilation chambers 54 are provided inside the first hot air drying cover 5, the second hot air drying cover 51, and the third hot air drying cover 52, and the air outlet 55 is connected to the hot air output pipe 53 through the ventilation chambers 54. A heating chamber 62 is provided inside the constant temperature square tube 6, and electric heaters 61 are arranged and installed inside the heating chamber 62.

[0025] In a preferred embodiment, the ventilation cavity 54 discharges hot air heated to a suitable temperature inside the thermostatic square tube 6 directly onto the surface of the transfer cardboard on the conveyor belt 12 through the air outlet 55, allowing the hot air to quickly dry the transfer cardboard and shortening the drying time. The electric heaters 61 in the heating cavity 62 inside the thermostatic square tube 6 can be individually adjusted in temperature, so that the incoming airflow is heated to a certain temperature and then discharged through the hot air drying hood, facilitating more precise temperature control and drying of the transfer cardboard.

[0026] This invention provides a drying device for a transfer cardboard production line. It effectively solves the problem in the prior art where the uniform circulation of hot air emanating from the box is easily uneven, requiring extended drying time before shipment and resulting in poor drying efficiency. The device facilitates efficient and rapid drying of the coating on the transfer cardboard on the production line, allows for segmented control of the hot air temperature in each zone, accelerates the heat circulation speed, significantly shortens the drying time of the transfer cardboard, and improves the drying efficiency of the drying device. It is suitable for drying devices used in transfer cardboard production lines.

Claims

1. A drying apparatus for a transfer cardboard production line, comprising: A cardboard drying machine body (1), wherein a heat insulation cover (2) is fixedly installed on the upper end face of the cardboard drying machine body (1), characterized in that: An infrared heater (4) is installed on the inner wall of the heat insulation cover (2). A first hot air drying cover (5), a second hot air drying cover (51) and a third hot air drying cover (52) are arranged on the right side of the infrared heater (4). The first hot air drying cover (5), the second hot air drying cover (51) and the third hot air drying cover (52) are arranged in sequence adjacent to each other. An air outlet (55) is provided on the lower end face of the first hot air drying cover (5), the second hot air drying cover (51) and the third hot air drying cover (52). A constant temperature square tube (6) is connected to the upper end of the first hot air drying cover (5), the second hot air drying cover (51) and the third hot air drying cover (52) through a hot air output pipe (53). A centrifugal fan (3) is connected to the constant temperature square tube (6) through a hot air input pipe (31).

2. The drying device for a transfer cardboard production line according to claim 1, characterized in that, The front end of the cardboard dryer body (1) is provided with a temperature control cabinet (11), and a conveyor belt (12) is installed inside the cardboard dryer body (1); and the air outlet (55) faces the upper surface of the conveyor belt (12).

3. The drying device for a transfer cardboard production line according to claim 1, characterized in that, The cardboard dryer body (1) has exhaust vents (13) staggered on the inner walls of the front and rear sides, and air guide frames (32) are installed on the outer walls of the front and rear sides.

4. A drying device for a transfer cardboard production line according to claim 3, characterized in that, A centrifugal fan (3) is installed on the upper surface of the air guide frame (32); and the inner cavity of the air guide frame (32) is connected to the exhaust net (13).

5. A drying device for a transfer cardboard production line according to claim 3, characterized in that, An adsorption mesh plate (33) is sealed and inserted into the inner side of the air guide frame plate (32), and the exhaust mesh port (13) corresponds one-to-one with the first hot air drying hood (5), the second hot air drying hood (51) and the third hot air drying hood (52).

6. A drying apparatus for a transfer cardboard production line according to claim 1, characterized in that, The inner side of the heat insulation cover (2) is connected to the first hot air drying cover (5), the second hot air drying cover (51) and the third hot air drying cover (52) through a partition (21).

7. A drying apparatus for a transfer cardboard production line according to claim 1, characterized in that, Ventilation chambers (54) are provided inside the first hot air drying hood (5), the second hot air drying hood (51) and the third hot air drying hood (52), and the air outlet (55) is connected to the hot air output pipe (53) through the ventilation chamber (54).

8. A drying apparatus for a transfer cardboard production line according to claim 1, characterized in that, The inner side of the constant temperature square tube (6) is provided with a heating chamber (62), and an electric heater (61) is arranged and installed in the heating chamber (62).

Images