A coating drying device for corrugated box production

Abstract

The utility model discloses a kind of coating drying devices for corrugated box production, including drying box and conveying mesh belt, conveying mesh belt is equipped between the inlet and outlet of both ends of drying box, and the middle position of the back of drying box is equipped with recovery tank, the position of the top of corresponding inlet and outlet is equipped with heat absorption block on the inner wall of both ends of drying box, drying block two is equipped between the drying box of conveying mesh belt inner side, and drying block two is evenly laid with drying pipe, the gas inlet end of drying pipe is equipped with gas supply pipe, and the other end of gas supply pipe extends to the bottom of recovery tank outside drying box and is connected, the middle position of both ends in drying box is equipped with screw rod, and screw rod is all connected with threaded block by thread, and threaded block is equipped with drying block one between. The utility model can be evenly dried by recycling hot gas, and drying distance can be adjusted, so that drying effect is better.

Description

Technical Field

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

[0002] Corrugated cardboard boxes are a common packaging material that plays an important role in the transportation and storage of goods. In order to improve the moisture-proof and wear-resistant properties of corrugated cardboard boxes, it is often necessary to apply a coating to their surface. The drying process of the coating is crucial, so a drying device is needed to dry it to facilitate subsequent production and use. In the existing technology, general drying equipment cannot dry cardboard materials evenly during use, resulting in excessive heat loss. Furthermore, the drying distance cannot be adjusted according to drying needs, thus reducing the drying effect. Utility Model Content

[0003] The purpose of this invention is to provide a coating drying device for corrugated cardboard box production, so as to solve the problems mentioned in the background art of inconvenience in uniform drying and adjustment of drying distance.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a coating drying device for corrugated cardboard box production, comprising a drying box and a conveyor belt. An inlet and an outlet are respectively located at the middle of both ends of the drying box, and a conveyor belt runs through the inlet and outlet at both ends of the drying box. A recycling box is located at the middle of the back of the drying box. Heat-absorbing blocks are provided on the inner walls of both ends of the drying box at positions corresponding to the top of the inlet and outlet. Each heat-absorbing block has a heat-absorbing pipe at one end near the back, and the other end of each heat-absorbing pipe extends to the outside of the drying box and connects to the top of both sides of the recycling box. A second drying block is provided between the drying boxes inside the conveyor belt, and drying pipes are evenly distributed within the second drying block. An air supply pipe is provided at the air inlet end of each drying pipe. The other end of the air supply pipe extends to the outside of the drying chamber and connects to the bottom of the recycling box. Both ends of the drying chamber are equipped with lead screws in the middle, and each lead screw is connected to a threaded block via threads. A drying block (first type) is located between the threaded blocks. Both the drying block (first type) and the heat-absorbing block have evenly distributed holes at their bottoms, allowing the recycling box to send recovered hot air into the drying pipe. This heats the drying block (second type), enabling it to dry the bottom of the corrugated cardboard on the conveyor belt and allowing the drying block (first type) to blow air onto its top, resulting in more even drying and heat recovery, reducing waste. Before drying, the lead screw can move the drying block (first type) between the threaded blocks, adjusting the distance between it and the cardboard according to the needs of different corrugated cardboard boxes, thus improving the drying effect.

[0005] As a further technical solution of this utility model, a hot air box is provided on one side of the top of the drying box, and a retractable hot air pipe is provided in the middle position of the side of the hot air box near the drying block. The bottom of the hot air pipe extends into the drying box and connects with the top of the drying block, so that the hot air box sends hot air into the drying block through the hot air pipe, and the drying block blows out hot air to dry the top of the cardboard.

[0006] As a further technical solution of this utility model, the inner wall of the bottom recovery box of the heat absorption tube is provided with a second sliding groove, and a filter layer is slidably connected between the second sliding grooves. A sealing door is hinged to the back of the recovery box corresponding to the filter layer, and a fan is provided in the middle of the bottom of the recovery box. The fan is started to draw in and exhaust air, and the drawn-in air can be filtered through the filter layer. After a period of use, the sealing door can be opened to replace and clean the filter layer.

[0007] As a further technical solution of this utility model, a slider is provided at the middle position of both ends of the drying block, and a sliding groove is provided on the side wall of the drying box corresponding to the slider. The sliding groove is slidably connected to the corresponding slider, so that when the drying block moves, the slider can be driven to move in the sliding groove, which can make the movement of the drying block more stable.

[0008] As a further technical solution of this utility model, the air outlet end of the drying tube is provided with an air outlet pipe, and the other end of the air outlet pipe extends to the outside of the drying box and connects to the back of the hot air box, so that the air outlet pipe at one end of the drying tube sends hot air into the hot air box for recycling.

[0009] As a further technical solution of this utility model, both ends of the drying box are provided with downward-sloping baffles above the inlet and outlet, and the bottom of each baffle is provided with an opening, so that the baffles can block dust and impurities and guide the internal gas flow, thereby reducing heat loss.

[0010] As a further technical solution of this utility model, the top of each lead screw is provided as an optical axis section, and each optical axis section of the lead screw is provided with a synchronous pulley. The synchronous pulleys are connected to each other by a synchronous belt, so that the synchronous pulleys are linked by the synchronous belt, and the synchronous pulleys can drive the lead screw to rotate synchronously.

[0011] As a further technical solution of this utility model, a motor is provided on one side of the top of the drying box corresponding to the position of the lead screw, and the output end of the motor extends into the drying box and is connected to the lead screw through a bearing and a coupling, so that the motor drives the output end to rotate, and the output end drives the lead screw to rotate through the coupling.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The heat is drawn into the recovery box by the heat absorption block, and then the recovered heat is sent into the drying pipe through the air supply pipe at the bottom. This heats the second drying block, allowing it to dry the bottom of the corrugated cardboard on the conveyor belt, and to blow air onto the top of the first drying block. This makes the drying more uniform and allows for the recovery and utilization of heat, reducing waste. The motor drives the synchronous pulleys on the lead screw to rotate, which in turn causes the synchronous pulleys to rotate through the synchronous belt. This, in turn, causes the lead screw to rotate synchronously, which in turn causes the drying blocks between the threaded blocks to move. The distance between the drying blocks and the cardboard can be adjusted according to the needs of different corrugated cardboard boxes to achieve better drying results. Attached Figure Description

[0013] Figure 1 This is a side sectional view of the present invention. Figure 2 This is a top sectional view of the present invention. Figure 3 This is a top sectional view of the drying box and drying block of this utility model. Figure 4 This is a schematic diagram of the back structure of the drying oven of this utility model; Figure 5 This is a cross-sectional structural diagram of the recycling bin, filter layer, and fan of this utility model; In the diagram: 1. Drying box; 2. Conveyor belt; 3. Motor; 4. Hot air duct; 5. Hot air box; 6. Synchronous pulley; 7. Lead screw; 8. Drying block one; 9. Drying block two; 10. Slide chute one; 11. Heat absorption block; 12. Baffle; 13. Recovery box; 14. Threaded block; 15. Sliding block; 16. Air supply pipe; 17. Heat absorption pipe; 18. Drying pipe; 19. Air outlet pipe; 20. Fan; 21. Slide chute two; 22. Filter layer. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1- / 5, One embodiment of this utility model: A coating drying device for corrugated cardboard box production, including a drying box 1 and a conveyor belt 2. An inlet and an outlet are respectively located at the middle of both ends of the drying box 1, and a conveyor belt 2 runs through the inlet and outlet at both ends of the drying box 1. A recycling box 13 is located at the middle of the back of the drying box 1. Heat-absorbing blocks 11 are provided on the inner walls at both ends of the drying box 1 at positions corresponding to the top of the inlet and outlet, and a heat-absorbing tube is provided at the end of each heat-absorbing block 11 near the back. 17, and the other end of the heat absorption pipe 17 extends to the outside of the drying box 1 and connects to the top of both sides of the recovery box 13. Drying block 2 9 is provided between the drying boxes 1 inside the conveyor belt 2, and drying pipe 18 is evenly laid in the drying block 2 9. The air inlet end of the drying pipe 18 is provided with an air supply pipe 16, and the other end of the air supply pipe 16 extends to the outside of the drying box 1 and connects to the bottom of the recovery box 13. The air outlet end of the drying pipe 18 is provided with an air outlet pipe 19, and the other end of the air outlet pipe 19 extends to the outside of the drying box 1 and connects to the back of the hot air box 5. Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the corrugated cardboard after coating is conveyed on the conveyor belt 2 and enters the drying chamber 1 through the feed inlet. The drying block 8 dries the top of the cardboard with hot air, and the heat absorption blocks 11 at both ends send the hot air discharged from the feed inlet and outlet into the recovery box 13 through the heat absorption pipe 17. Then, the recovered hot air is sent into the drying pipe 18 through the air supply pipe 16 at the bottom of the recovery box 13. The hot air in the drying pipe 18 heats the drying block 9, so that the drying block 9 can dry the bottom of the corrugated cardboard on the conveyor belt 2. This makes the drying more uniform and allows for the recovery and utilization of heat, reducing waste and preventing bottom blowing drying, which would cause the bottom of the cardboard to shake and affect the drying effect. Both ends of the drying chamber 1 are equipped with lead screws 7 at the middle position, and each lead screw 7 is connected to a threaded block 14 by a thread. A drying block 8 is provided between the threaded blocks 14, and the bottom of the drying block 8 and the heat absorption block 11 are evenly provided with holes. The top of each lead screw 7 is a smooth shaft section, and each smooth shaft section of the lead screw 7 is equipped with a synchronous pulley 6, and the synchronous pulleys 6 are connected to each other by a synchronous belt. A motor 3 is provided on one side of the top of the drying chamber 1 corresponding to the position of the lead screw 7, and the output end of the motor 3 extends into the drying chamber 1 and is connected to the lead screw 7 through a bearing and a coupling. Specifically, such as Figure 1 and Figure 2As shown, the motor 3 drives the synchronous pulley 6 on the lead screw 7 to rotate, which in turn drives the synchronous pulley 6 at the other end to rotate via the synchronous belt. The synchronous pulley 6 drives the lead screw 7 to rotate synchronously, which in turn drives the threaded block 14 to move up and down. The threaded block 14 then drives the drying block 8 to move, allowing the drying block 8 to be moved to adjust the distance between it and the cardboard. The position of the drying block 8 can be flexibly adjusted according to the thickness, material, and coating characteristics of different corrugated cardboard, resulting in a better drying effect. A hot air box 5 is provided on one side of the top of the drying oven 1, and a retractable hot air pipe 4 is provided in the middle of the side of the hot air box 5 near the drying block 8, and the bottom of the hot air pipe 4 extends into the drying oven 1 and connects to the top of the drying block 8. Specifically, such as Figure 1 As shown, the hot air box 5 sends hot air into the drying block 8 through the hot air pipe 4, and the cardboard can be dried evenly by blowing air through the holes at the bottom of the drying block 8. The inner wall of the bottom recovery box 13 of the heat absorption tube 17 is provided with a second sliding groove 21, and a filter layer 22 is slidably connected between the second sliding grooves 21. A sealing door is hinged to the back of the recovery box 13 corresponding to the filter layer 22, and a fan 20 is provided in the middle of the bottom of the recovery box 13. Specifically, such as Figure 4 and Figure 5 As shown, starting the fan 20 allows the heat absorption tube 17 to draw hot air from the drying chamber 1 into the recovery box 13, and then filter it through the filter layer 22 to prevent cardboard scraps or dust impurities in the hot air from entering the drying tube 18. After a period of use, the sealed door can be opened, and the filter layer 22 can be slid out from between the slide grooves 21 to replace or clean the filter layer 22. The middle position of both ends of the drying block 8 is provided with a slider 15, and the side wall of the drying box 1 corresponding to the slider 15 is provided with a groove 10, and the groove 10 is slidably connected to the corresponding slider 15. Specifically, such as Figure 1 and Figure 2 As shown, when the drying block 8 moves, the slider 15 can move within the slide groove 10, which makes the movement of the drying block 8 more stable. Both ends of the drying oven 1 are equipped with downward-sloping baffles 12 at positions above the inlet and outlet, and the bottom of each baffle 12 has an opening. Specifically, such as Figure 1 As shown, when the cardboard enters the drying chamber 1 from the feed inlet or leaves from the discharge outlet, the baffle 12 can block dust, debris and other objects from the external environment from entering the drying chamber 1, and its inclined design can guide the airflow, which can reduce the loss of heat from the feed inlet and discharge outlet.

[0016] Working Principle: During use, the hot air box 5 sends hot air into the drying block 8 through the hot air pipe 4. The baffles 12 at the inlet and outlet of the drying box 1 prevent dust and debris from entering and guide the airflow, reducing heat loss from the inlet and outlet. Then, the fan 20 is started, causing the heat absorption block 11 to draw the hot air discharged from the inlet and outlet into the recovery box 13 through the heat absorption pipe 17. The air is then filtered through the filter layer 22 to prevent cardboard scraps or dust impurities from entering the drying tube 18. The recovered hot air is then sent into the drying tube 18 through the air supply pipe 16 at the bottom of the recovery box 13, heating the drying block 9. The hot air then re-enters the hot air box 5 through the air outlet pipe 19, reducing heat waste. When the internal temperature reaches a suitable point, the motor 3 drives the synchronous pulley 6 on the lead screw 7 to rotate, causing the synchronous pulley 6 to drive the other synchronous pulley 6 through the synchronous belt. The rotation causes the synchronous belt pulley 6 to drive the lead screw 7 to rotate synchronously, which in turn causes the lead screw 7 to move the threaded block 14 up and down. The threaded block 14 then moves the drying block 8 between them. As the drying block 8 moves, the slider 15 moves within the slide groove 10, making the movement of the drying block 8 more stable. The distance between the drying block 8 and the cardboard can be adjusted according to the thickness, material, and coating characteristics of different corrugated cardboard, resulting in better drying effect. After adjustment, the coated corrugated cardboard can be conveyed on the conveyor belt 2 and enter the drying chamber 1 through the feed inlet. The drying block 8 dries the top of the cardboard with hot air, while the drying block 9 dries the bottom of the cardboard, ensuring even drying and improving the drying effect. After the recycling box 13 has been used for a period of time, the sealed door can be opened, and the filter layer 22 can be slid out from between the slide grooves 21 for replacement or cleaning.

[0017] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A coating drying device for corrugated cardboard box production, comprising a drying chamber (1) and a conveyor belt (2), characterized in that: The drying box (1) has an inlet and an outlet at the middle of both ends, and a conveyor belt (2) runs through the inlet and outlet at both ends. A recycling box (13) is located at the middle of the back of the drying box (1). Heat-absorbing blocks (11) are provided on the inner walls of both ends of the drying box (1) at the top positions corresponding to the inlet and outlet. Heat-absorbing pipes (17) are provided at the end of each heat-absorbing block (11) near the back. The other ends of the heat-absorbing pipes (17) extend to the outside of the drying box (1) and connect to the top of both sides of the recycling box (13). The conveyor belt (2) is located inside the drying box. Drying block two (9) is provided between the drying boxes (1) on the side, and drying pipe (18) is evenly laid in the drying block two (9). The air inlet end of the drying pipe (18) is provided with an air supply pipe (16), and the other end of the air supply pipe (16) extends to the outside of the drying box (1) and connects to the bottom of the recycling box (13). Screws (7) are provided at the middle positions of both ends of the drying box (1), and threaded blocks (14) are connected to the screws (7) by threads. Drying block one (8) is provided between the threaded blocks (14), and holes are evenly provided at the bottom of the drying block one (8) and the heat absorption block (11).

2. The coating drying device for corrugated cardboard box production according to claim 1, characterized in that: A hot air box (5) is provided on one side of the top of the drying box (1), and a retractable hot air pipe (4) is provided in the middle of the side of the hot air box (5) near the drying block (8), and the bottom of the hot air pipe (4) extends into the drying box (1) and connects to the top of the drying block (8).

3. The coating drying device for corrugated cardboard box production according to claim 1, characterized in that: The inner wall of the bottom recovery box (13) of the heat absorption tube (17) is provided with a sliding groove (21), and a filter layer (22) is slidably connected between the sliding grooves (21). A sealing door is hinged to the back of the recovery box (13) corresponding to the filter layer (22), and a fan (20) is provided in the middle position of the bottom of the recovery box (13).

4. The coating drying device for corrugated cardboard box production according to claim 1, characterized in that: The drying block (8) has a slider (15) at the middle position of both ends, and the drying box (1) corresponding to the slider (15) has a groove (10) on its side wall, and the groove (10) is slidably connected to the corresponding slider (15).

5. The coating drying device for corrugated cardboard box production according to claim 1, characterized in that: The air outlet end of the drying tube (18) is provided with an air outlet pipe (19), and the other end of the air outlet pipe (19) extends to the outside of the drying box (1) and is connected to the back of the hot air box (5).

6. The coating drying device for corrugated cardboard box production according to claim 1, characterized in that: The drying box (1) has downward-sloping baffles (12) at both ends corresponding to the positions above the inlet and outlet, and the bottom of the baffles (12) has an opening.

7. The coating drying device for corrugated cardboard box production according to claim 1, characterized in that: The top of each lead screw (7) is provided as an optical axis section, and each optical axis section of the lead screw (7) is provided with a synchronous pulley (6), and the synchronous pulleys (6) are connected to each other by a synchronous belt.

8. The coating drying device for corrugated cardboard box production according to claim 1, characterized in that: A motor (3) is provided on one side of the top of the drying box (1) at the position corresponding to the lead screw (7), and the output end of the motor (3) extends into the drying box (1) through a bearing and a coupling and is connected to the lead screw (7).

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